Mon, 14 Nov 2011 15:11:10 -0800
7106166: (javac) re-factor EndPos parser
Reviewed-by: jjg
duke@1 | 1 | /* |
jjg@816 | 2 | * Copyright (c) 1999, 2011, Oracle and/or its affiliates. All rights reserved. |
duke@1 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@1 | 4 | * |
duke@1 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@1 | 6 | * under the terms of the GNU General Public License version 2 only, as |
ohair@554 | 7 | * published by the Free Software Foundation. Oracle designates this |
duke@1 | 8 | * particular file as subject to the "Classpath" exception as provided |
ohair@554 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
duke@1 | 10 | * |
duke@1 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@1 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@1 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@1 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@1 | 15 | * accompanied this code). |
duke@1 | 16 | * |
duke@1 | 17 | * You should have received a copy of the GNU General Public License version |
duke@1 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@1 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@1 | 20 | * |
ohair@554 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
ohair@554 | 22 | * or visit www.oracle.com if you need additional information or have any |
ohair@554 | 23 | * questions. |
duke@1 | 24 | */ |
duke@1 | 25 | |
duke@1 | 26 | package com.sun.tools.javac.parser; |
duke@1 | 27 | |
duke@1 | 28 | import java.util.*; |
duke@1 | 29 | |
ksrini@1074 | 30 | import com.sun.tools.javac.code.*; |
mcimadamore@1113 | 31 | import com.sun.tools.javac.parser.Tokens.*; |
mcimadamore@1125 | 32 | import com.sun.tools.javac.parser.Tokens.Comment.CommentStyle; |
duke@1 | 33 | import com.sun.tools.javac.tree.*; |
ksrini@1074 | 34 | import com.sun.tools.javac.tree.JCTree.*; |
duke@1 | 35 | import com.sun.tools.javac.util.*; |
jjg@726 | 36 | import com.sun.tools.javac.util.JCDiagnostic.DiagnosticFlag; |
ksrini@1074 | 37 | import com.sun.tools.javac.util.JCDiagnostic.DiagnosticPosition; |
duke@1 | 38 | import com.sun.tools.javac.util.List; |
ksrini@1074 | 39 | |
jjg@1127 | 40 | import static com.sun.tools.javac.parser.Tokens.TokenKind.*; |
jjg@1127 | 41 | import static com.sun.tools.javac.parser.Tokens.TokenKind.ASSERT; |
jjg@1127 | 42 | import static com.sun.tools.javac.parser.Tokens.TokenKind.CASE; |
jjg@1127 | 43 | import static com.sun.tools.javac.parser.Tokens.TokenKind.CATCH; |
jjg@1127 | 44 | import static com.sun.tools.javac.parser.Tokens.TokenKind.EQ; |
jjg@1127 | 45 | import static com.sun.tools.javac.parser.Tokens.TokenKind.GT; |
jjg@1127 | 46 | import static com.sun.tools.javac.parser.Tokens.TokenKind.IMPORT; |
jjg@1127 | 47 | import static com.sun.tools.javac.parser.Tokens.TokenKind.LT; |
duke@1 | 48 | import static com.sun.tools.javac.util.ListBuffer.lb; |
jjg@1127 | 49 | import static com.sun.tools.javac.tree.JCTree.Tag.*; |
duke@1 | 50 | |
duke@1 | 51 | /** The parser maps a token sequence into an abstract syntax |
duke@1 | 52 | * tree. It operates by recursive descent, with code derived |
duke@1 | 53 | * systematically from an LL(1) grammar. For efficiency reasons, an |
duke@1 | 54 | * operator precedence scheme is used for parsing binary operation |
duke@1 | 55 | * expressions. |
duke@1 | 56 | * |
jjg@581 | 57 | * <p><b>This is NOT part of any supported API. |
jjg@581 | 58 | * If you write code that depends on this, you do so at your own risk. |
duke@1 | 59 | * This code and its internal interfaces are subject to change or |
duke@1 | 60 | * deletion without notice.</b> |
duke@1 | 61 | */ |
jjg@111 | 62 | public class JavacParser implements Parser { |
duke@1 | 63 | |
duke@1 | 64 | /** The number of precedence levels of infix operators. |
duke@1 | 65 | */ |
duke@1 | 66 | private static final int infixPrecedenceLevels = 10; |
duke@1 | 67 | |
duke@1 | 68 | /** The scanner used for lexical analysis. |
duke@1 | 69 | */ |
ksrini@1062 | 70 | protected Lexer S; |
duke@1 | 71 | |
duke@1 | 72 | /** The factory to be used for abstract syntax tree construction. |
duke@1 | 73 | */ |
duke@1 | 74 | protected TreeMaker F; |
duke@1 | 75 | |
duke@1 | 76 | /** The log to be used for error diagnostics. |
duke@1 | 77 | */ |
duke@1 | 78 | private Log log; |
duke@1 | 79 | |
duke@1 | 80 | /** The Source language setting. */ |
duke@1 | 81 | private Source source; |
duke@1 | 82 | |
duke@1 | 83 | /** The name table. */ |
jjg@113 | 84 | private Names names; |
duke@1 | 85 | |
ksrini@1138 | 86 | /** End position mappings container */ |
ksrini@1138 | 87 | private final AbstractEndPosTable endPosTable; |
ksrini@1138 | 88 | |
duke@1 | 89 | /** Construct a parser from a given scanner, tree factory and log. |
duke@1 | 90 | */ |
jjg@111 | 91 | protected JavacParser(ParserFactory fac, |
duke@1 | 92 | Lexer S, |
jjg@111 | 93 | boolean keepDocComments, |
ksrini@1138 | 94 | boolean keepLineMap, |
ksrini@1138 | 95 | boolean keepEndPositions) { |
duke@1 | 96 | this.S = S; |
mcimadamore@1113 | 97 | nextToken(); // prime the pump |
duke@1 | 98 | this.F = fac.F; |
duke@1 | 99 | this.log = fac.log; |
duke@1 | 100 | this.names = fac.names; |
duke@1 | 101 | this.source = fac.source; |
duke@1 | 102 | this.allowGenerics = source.allowGenerics(); |
duke@1 | 103 | this.allowVarargs = source.allowVarargs(); |
duke@1 | 104 | this.allowAsserts = source.allowAsserts(); |
duke@1 | 105 | this.allowEnums = source.allowEnums(); |
duke@1 | 106 | this.allowForeach = source.allowForeach(); |
duke@1 | 107 | this.allowStaticImport = source.allowStaticImport(); |
duke@1 | 108 | this.allowAnnotations = source.allowAnnotations(); |
darcy@609 | 109 | this.allowTWR = source.allowTryWithResources(); |
mcimadamore@537 | 110 | this.allowDiamond = source.allowDiamond(); |
mcimadamore@550 | 111 | this.allowMulticatch = source.allowMulticatch(); |
ksrini@1062 | 112 | this.allowStringFolding = fac.options.getBoolean("allowStringFolding", true); |
duke@1 | 113 | this.keepDocComments = keepDocComments; |
ksrini@1062 | 114 | docComments = keepDocComments ? new HashMap<JCTree,String>() : null; |
jjg@111 | 115 | this.keepLineMap = keepLineMap; |
duke@1 | 116 | this.errorTree = F.Erroneous(); |
ksrini@1138 | 117 | endPosTable = newEndPosTable(keepEndPositions); |
duke@1 | 118 | } |
duke@1 | 119 | |
ksrini@1138 | 120 | protected AbstractEndPosTable newEndPosTable(boolean keepEndPositions) { |
ksrini@1138 | 121 | return keepEndPositions |
ksrini@1138 | 122 | ? new SimpleEndPosTable() |
ksrini@1138 | 123 | : new EmptyEndPosTable(); |
ksrini@1138 | 124 | } |
duke@1 | 125 | /** Switch: Should generics be recognized? |
duke@1 | 126 | */ |
duke@1 | 127 | boolean allowGenerics; |
duke@1 | 128 | |
mcimadamore@537 | 129 | /** Switch: Should diamond operator be recognized? |
mcimadamore@537 | 130 | */ |
mcimadamore@537 | 131 | boolean allowDiamond; |
mcimadamore@537 | 132 | |
mcimadamore@550 | 133 | /** Switch: Should multicatch clause be accepted? |
mcimadamore@550 | 134 | */ |
mcimadamore@550 | 135 | boolean allowMulticatch; |
mcimadamore@550 | 136 | |
duke@1 | 137 | /** Switch: Should varargs be recognized? |
duke@1 | 138 | */ |
duke@1 | 139 | boolean allowVarargs; |
duke@1 | 140 | |
duke@1 | 141 | /** Switch: should we recognize assert statements, or just give a warning? |
duke@1 | 142 | */ |
duke@1 | 143 | boolean allowAsserts; |
duke@1 | 144 | |
duke@1 | 145 | /** Switch: should we recognize enums, or just give a warning? |
duke@1 | 146 | */ |
duke@1 | 147 | boolean allowEnums; |
duke@1 | 148 | |
duke@1 | 149 | /** Switch: should we recognize foreach? |
duke@1 | 150 | */ |
duke@1 | 151 | boolean allowForeach; |
duke@1 | 152 | |
duke@1 | 153 | /** Switch: should we recognize foreach? |
duke@1 | 154 | */ |
duke@1 | 155 | boolean allowStaticImport; |
duke@1 | 156 | |
duke@1 | 157 | /** Switch: should we recognize annotations? |
duke@1 | 158 | */ |
duke@1 | 159 | boolean allowAnnotations; |
duke@1 | 160 | |
darcy@840 | 161 | /** Switch: should we recognize try-with-resources? |
darcy@609 | 162 | */ |
darcy@609 | 163 | boolean allowTWR; |
darcy@609 | 164 | |
ksrini@1062 | 165 | /** Switch: should we fold strings? |
ksrini@1062 | 166 | */ |
ksrini@1062 | 167 | boolean allowStringFolding; |
ksrini@1062 | 168 | |
duke@1 | 169 | /** Switch: should we keep docComments? |
duke@1 | 170 | */ |
duke@1 | 171 | boolean keepDocComments; |
duke@1 | 172 | |
jjg@111 | 173 | /** Switch: should we keep line table? |
jjg@111 | 174 | */ |
jjg@111 | 175 | boolean keepLineMap; |
jjg@111 | 176 | |
duke@1 | 177 | /** When terms are parsed, the mode determines which is expected: |
duke@1 | 178 | * mode = EXPR : an expression |
duke@1 | 179 | * mode = TYPE : a type |
duke@1 | 180 | * mode = NOPARAMS : no parameters allowed for type |
duke@1 | 181 | * mode = TYPEARG : type argument |
duke@1 | 182 | */ |
mcimadamore@537 | 183 | static final int EXPR = 0x1; |
mcimadamore@537 | 184 | static final int TYPE = 0x2; |
mcimadamore@537 | 185 | static final int NOPARAMS = 0x4; |
mcimadamore@537 | 186 | static final int TYPEARG = 0x8; |
mcimadamore@537 | 187 | static final int DIAMOND = 0x10; |
duke@1 | 188 | |
duke@1 | 189 | /** The current mode. |
duke@1 | 190 | */ |
duke@1 | 191 | private int mode = 0; |
duke@1 | 192 | |
duke@1 | 193 | /** The mode of the term that was parsed last. |
duke@1 | 194 | */ |
duke@1 | 195 | private int lastmode = 0; |
duke@1 | 196 | |
mcimadamore@1113 | 197 | /* ---------- token management -------------- */ |
mcimadamore@1113 | 198 | |
mcimadamore@1113 | 199 | protected Token token; |
mcimadamore@1113 | 200 | |
mcimadamore@1113 | 201 | protected void nextToken() { |
mcimadamore@1113 | 202 | S.nextToken(); |
mcimadamore@1113 | 203 | token = S.token(); |
mcimadamore@1113 | 204 | } |
mcimadamore@1113 | 205 | |
mcimadamore@1113 | 206 | /* ---------- error recovery -------------- */ |
duke@1 | 207 | |
duke@1 | 208 | private JCErroneous errorTree; |
duke@1 | 209 | |
duke@1 | 210 | /** Skip forward until a suitable stop token is found. |
duke@1 | 211 | */ |
duke@1 | 212 | private void skip(boolean stopAtImport, boolean stopAtMemberDecl, boolean stopAtIdentifier, boolean stopAtStatement) { |
duke@1 | 213 | while (true) { |
mcimadamore@1113 | 214 | switch (token.kind) { |
duke@1 | 215 | case SEMI: |
mcimadamore@1113 | 216 | nextToken(); |
duke@1 | 217 | return; |
duke@1 | 218 | case PUBLIC: |
duke@1 | 219 | case FINAL: |
duke@1 | 220 | case ABSTRACT: |
duke@1 | 221 | case MONKEYS_AT: |
duke@1 | 222 | case EOF: |
duke@1 | 223 | case CLASS: |
duke@1 | 224 | case INTERFACE: |
duke@1 | 225 | case ENUM: |
duke@1 | 226 | return; |
duke@1 | 227 | case IMPORT: |
duke@1 | 228 | if (stopAtImport) |
duke@1 | 229 | return; |
duke@1 | 230 | break; |
duke@1 | 231 | case LBRACE: |
duke@1 | 232 | case RBRACE: |
duke@1 | 233 | case PRIVATE: |
duke@1 | 234 | case PROTECTED: |
duke@1 | 235 | case STATIC: |
duke@1 | 236 | case TRANSIENT: |
duke@1 | 237 | case NATIVE: |
duke@1 | 238 | case VOLATILE: |
duke@1 | 239 | case SYNCHRONIZED: |
duke@1 | 240 | case STRICTFP: |
duke@1 | 241 | case LT: |
duke@1 | 242 | case BYTE: |
duke@1 | 243 | case SHORT: |
duke@1 | 244 | case CHAR: |
duke@1 | 245 | case INT: |
duke@1 | 246 | case LONG: |
duke@1 | 247 | case FLOAT: |
duke@1 | 248 | case DOUBLE: |
duke@1 | 249 | case BOOLEAN: |
duke@1 | 250 | case VOID: |
duke@1 | 251 | if (stopAtMemberDecl) |
duke@1 | 252 | return; |
duke@1 | 253 | break; |
duke@1 | 254 | case IDENTIFIER: |
duke@1 | 255 | if (stopAtIdentifier) |
duke@1 | 256 | return; |
duke@1 | 257 | break; |
duke@1 | 258 | case CASE: |
duke@1 | 259 | case DEFAULT: |
duke@1 | 260 | case IF: |
duke@1 | 261 | case FOR: |
duke@1 | 262 | case WHILE: |
duke@1 | 263 | case DO: |
duke@1 | 264 | case TRY: |
duke@1 | 265 | case SWITCH: |
duke@1 | 266 | case RETURN: |
duke@1 | 267 | case THROW: |
duke@1 | 268 | case BREAK: |
duke@1 | 269 | case CONTINUE: |
duke@1 | 270 | case ELSE: |
duke@1 | 271 | case FINALLY: |
duke@1 | 272 | case CATCH: |
duke@1 | 273 | if (stopAtStatement) |
duke@1 | 274 | return; |
duke@1 | 275 | break; |
duke@1 | 276 | } |
mcimadamore@1113 | 277 | nextToken(); |
duke@1 | 278 | } |
duke@1 | 279 | } |
duke@1 | 280 | |
mcimadamore@1113 | 281 | private JCErroneous syntaxError(int pos, String key, TokenKind... args) { |
ksrini@1074 | 282 | return syntaxError(pos, List.<JCTree>nil(), key, args); |
duke@1 | 283 | } |
duke@1 | 284 | |
mcimadamore@1113 | 285 | private JCErroneous syntaxError(int pos, List<JCTree> errs, String key, TokenKind... args) { |
duke@1 | 286 | setErrorEndPos(pos); |
ksrini@1074 | 287 | JCErroneous err = F.at(pos).Erroneous(errs); |
ksrini@1074 | 288 | reportSyntaxError(err, key, (Object[])args); |
ksrini@1074 | 289 | if (errs != null) { |
ksrini@1074 | 290 | JCTree last = errs.last(); |
ksrini@1074 | 291 | if (last != null) |
ksrini@1074 | 292 | storeEnd(last, pos); |
ksrini@1074 | 293 | } |
ksrini@1074 | 294 | return toP(err); |
duke@1 | 295 | } |
duke@1 | 296 | |
duke@1 | 297 | private int errorPos = Position.NOPOS; |
ksrini@1074 | 298 | |
duke@1 | 299 | /** |
ksrini@1074 | 300 | * Report a syntax using the given the position parameter and arguments, |
ksrini@1074 | 301 | * unless one was already reported at the same position. |
duke@1 | 302 | */ |
mcimadamore@80 | 303 | private void reportSyntaxError(int pos, String key, Object... args) { |
ksrini@1074 | 304 | JCDiagnostic.DiagnosticPosition diag = new JCDiagnostic.SimpleDiagnosticPosition(pos); |
ksrini@1074 | 305 | reportSyntaxError(diag, key, args); |
ksrini@1074 | 306 | } |
ksrini@1074 | 307 | |
ksrini@1074 | 308 | /** |
ksrini@1074 | 309 | * Report a syntax error using the given DiagnosticPosition object and |
ksrini@1074 | 310 | * arguments, unless one was already reported at the same position. |
ksrini@1074 | 311 | */ |
ksrini@1074 | 312 | private void reportSyntaxError(JCDiagnostic.DiagnosticPosition diagPos, String key, Object... args) { |
ksrini@1074 | 313 | int pos = diagPos.getPreferredPosition(); |
duke@1 | 314 | if (pos > S.errPos() || pos == Position.NOPOS) { |
mcimadamore@1113 | 315 | if (token.kind == EOF) { |
ksrini@1074 | 316 | error(diagPos, "premature.eof"); |
ksrini@1074 | 317 | } else { |
ksrini@1074 | 318 | error(diagPos, key, args); |
ksrini@1074 | 319 | } |
duke@1 | 320 | } |
duke@1 | 321 | S.errPos(pos); |
mcimadamore@1113 | 322 | if (token.pos == errorPos) |
mcimadamore@1113 | 323 | nextToken(); // guarantee progress |
mcimadamore@1113 | 324 | errorPos = token.pos; |
duke@1 | 325 | } |
duke@1 | 326 | |
duke@1 | 327 | |
duke@1 | 328 | /** Generate a syntax error at current position unless one was already |
duke@1 | 329 | * reported at the same position. |
duke@1 | 330 | */ |
duke@1 | 331 | private JCErroneous syntaxError(String key) { |
mcimadamore@1113 | 332 | return syntaxError(token.pos, key); |
duke@1 | 333 | } |
duke@1 | 334 | |
duke@1 | 335 | /** Generate a syntax error at current position unless one was |
duke@1 | 336 | * already reported at the same position. |
duke@1 | 337 | */ |
mcimadamore@1113 | 338 | private JCErroneous syntaxError(String key, TokenKind arg) { |
mcimadamore@1113 | 339 | return syntaxError(token.pos, key, arg); |
duke@1 | 340 | } |
duke@1 | 341 | |
duke@1 | 342 | /** If next input token matches given token, skip it, otherwise report |
duke@1 | 343 | * an error. |
duke@1 | 344 | */ |
mcimadamore@1113 | 345 | public void accept(TokenKind tk) { |
mcimadamore@1113 | 346 | if (token.kind == tk) { |
mcimadamore@1113 | 347 | nextToken(); |
duke@1 | 348 | } else { |
mcimadamore@1113 | 349 | setErrorEndPos(token.pos); |
mcimadamore@1113 | 350 | reportSyntaxError(S.prevToken().endPos, "expected", tk); |
duke@1 | 351 | } |
duke@1 | 352 | } |
duke@1 | 353 | |
duke@1 | 354 | /** Report an illegal start of expression/type error at given position. |
duke@1 | 355 | */ |
duke@1 | 356 | JCExpression illegal(int pos) { |
ksrini@1074 | 357 | setErrorEndPos(pos); |
duke@1 | 358 | if ((mode & EXPR) != 0) |
duke@1 | 359 | return syntaxError(pos, "illegal.start.of.expr"); |
duke@1 | 360 | else |
duke@1 | 361 | return syntaxError(pos, "illegal.start.of.type"); |
duke@1 | 362 | |
duke@1 | 363 | } |
duke@1 | 364 | |
duke@1 | 365 | /** Report an illegal start of expression/type error at current position. |
duke@1 | 366 | */ |
duke@1 | 367 | JCExpression illegal() { |
mcimadamore@1113 | 368 | return illegal(token.pos); |
duke@1 | 369 | } |
duke@1 | 370 | |
duke@1 | 371 | /** Diagnose a modifier flag from the set, if any. */ |
duke@1 | 372 | void checkNoMods(long mods) { |
duke@1 | 373 | if (mods != 0) { |
duke@1 | 374 | long lowestMod = mods & -mods; |
mcimadamore@1113 | 375 | error(token.pos, "mod.not.allowed.here", |
mcimadamore@80 | 376 | Flags.asFlagSet(lowestMod)); |
duke@1 | 377 | } |
duke@1 | 378 | } |
duke@1 | 379 | |
duke@1 | 380 | /* ---------- doc comments --------- */ |
duke@1 | 381 | |
duke@1 | 382 | /** A hashtable to store all documentation comments |
duke@1 | 383 | * indexed by the tree nodes they refer to. |
duke@1 | 384 | * defined only if option flag keepDocComment is set. |
duke@1 | 385 | */ |
ksrini@1074 | 386 | private final Map<JCTree, String> docComments; |
duke@1 | 387 | |
duke@1 | 388 | /** Make an entry into docComments hashtable, |
duke@1 | 389 | * provided flag keepDocComments is set and given doc comment is non-null. |
duke@1 | 390 | * @param tree The tree to be used as index in the hashtable |
duke@1 | 391 | * @param dc The doc comment to associate with the tree, or null. |
duke@1 | 392 | */ |
duke@1 | 393 | void attach(JCTree tree, String dc) { |
duke@1 | 394 | if (keepDocComments && dc != null) { |
duke@1 | 395 | // System.out.println("doc comment = ");System.out.println(dc);//DEBUG |
duke@1 | 396 | docComments.put(tree, dc); |
duke@1 | 397 | } |
duke@1 | 398 | } |
duke@1 | 399 | |
duke@1 | 400 | /* -------- source positions ------- */ |
duke@1 | 401 | |
duke@1 | 402 | private void setErrorEndPos(int errPos) { |
ksrini@1138 | 403 | endPosTable.setErrorEndPos(errPos); |
duke@1 | 404 | } |
duke@1 | 405 | |
ksrini@1138 | 406 | private void storeEnd(JCTree tree, int endpos) { |
ksrini@1138 | 407 | endPosTable.storeEnd(tree, endpos); |
duke@1 | 408 | } |
duke@1 | 409 | |
ksrini@1138 | 410 | private <T extends JCTree> T to(T t) { |
ksrini@1138 | 411 | return endPosTable.to(t); |
ksrini@1138 | 412 | } |
duke@1 | 413 | |
ksrini@1138 | 414 | private <T extends JCTree> T toP(T t) { |
ksrini@1138 | 415 | return endPosTable.toP(t); |
ksrini@1138 | 416 | } |
duke@1 | 417 | |
duke@1 | 418 | /** Get the start position for a tree node. The start position is |
duke@1 | 419 | * defined to be the position of the first character of the first |
duke@1 | 420 | * token of the node's source text. |
duke@1 | 421 | * @param tree The tree node |
duke@1 | 422 | */ |
duke@1 | 423 | public int getStartPos(JCTree tree) { |
duke@1 | 424 | return TreeInfo.getStartPos(tree); |
duke@1 | 425 | } |
duke@1 | 426 | |
duke@1 | 427 | /** |
duke@1 | 428 | * Get the end position for a tree node. The end position is |
duke@1 | 429 | * defined to be the position of the last character of the last |
duke@1 | 430 | * token of the node's source text. Returns Position.NOPOS if end |
duke@1 | 431 | * positions are not generated or the position is otherwise not |
duke@1 | 432 | * found. |
duke@1 | 433 | * @param tree The tree node |
duke@1 | 434 | */ |
duke@1 | 435 | public int getEndPos(JCTree tree) { |
ksrini@1138 | 436 | return endPosTable.getEndPos(tree); |
duke@1 | 437 | } |
duke@1 | 438 | |
duke@1 | 439 | |
duke@1 | 440 | |
duke@1 | 441 | /* ---------- parsing -------------- */ |
duke@1 | 442 | |
duke@1 | 443 | /** |
duke@1 | 444 | * Ident = IDENTIFIER |
duke@1 | 445 | */ |
duke@1 | 446 | Name ident() { |
mcimadamore@1113 | 447 | if (token.kind == IDENTIFIER) { |
mcimadamore@1113 | 448 | Name name = token.name(); |
mcimadamore@1113 | 449 | nextToken(); |
duke@1 | 450 | return name; |
mcimadamore@1113 | 451 | } else if (token.kind == ASSERT) { |
duke@1 | 452 | if (allowAsserts) { |
mcimadamore@1113 | 453 | error(token.pos, "assert.as.identifier"); |
mcimadamore@1113 | 454 | nextToken(); |
duke@1 | 455 | return names.error; |
duke@1 | 456 | } else { |
mcimadamore@1113 | 457 | warning(token.pos, "assert.as.identifier"); |
mcimadamore@1113 | 458 | Name name = token.name(); |
mcimadamore@1113 | 459 | nextToken(); |
duke@1 | 460 | return name; |
duke@1 | 461 | } |
mcimadamore@1113 | 462 | } else if (token.kind == ENUM) { |
duke@1 | 463 | if (allowEnums) { |
mcimadamore@1113 | 464 | error(token.pos, "enum.as.identifier"); |
mcimadamore@1113 | 465 | nextToken(); |
duke@1 | 466 | return names.error; |
duke@1 | 467 | } else { |
mcimadamore@1113 | 468 | warning(token.pos, "enum.as.identifier"); |
mcimadamore@1113 | 469 | Name name = token.name(); |
mcimadamore@1113 | 470 | nextToken(); |
duke@1 | 471 | return name; |
duke@1 | 472 | } |
duke@1 | 473 | } else { |
duke@1 | 474 | accept(IDENTIFIER); |
duke@1 | 475 | return names.error; |
duke@1 | 476 | } |
duke@1 | 477 | } |
duke@1 | 478 | |
duke@1 | 479 | /** |
duke@1 | 480 | * Qualident = Ident { DOT Ident } |
duke@1 | 481 | */ |
duke@1 | 482 | public JCExpression qualident() { |
mcimadamore@1113 | 483 | JCExpression t = toP(F.at(token.pos).Ident(ident())); |
mcimadamore@1113 | 484 | while (token.kind == DOT) { |
mcimadamore@1113 | 485 | int pos = token.pos; |
mcimadamore@1113 | 486 | nextToken(); |
duke@1 | 487 | t = toP(F.at(pos).Select(t, ident())); |
duke@1 | 488 | } |
duke@1 | 489 | return t; |
duke@1 | 490 | } |
duke@1 | 491 | |
ksrini@1074 | 492 | JCExpression literal(Name prefix) { |
mcimadamore@1113 | 493 | return literal(prefix, token.pos); |
ksrini@1074 | 494 | } |
ksrini@1074 | 495 | |
duke@1 | 496 | /** |
duke@1 | 497 | * Literal = |
duke@1 | 498 | * INTLITERAL |
duke@1 | 499 | * | LONGLITERAL |
duke@1 | 500 | * | FLOATLITERAL |
duke@1 | 501 | * | DOUBLELITERAL |
duke@1 | 502 | * | CHARLITERAL |
duke@1 | 503 | * | STRINGLITERAL |
duke@1 | 504 | * | TRUE |
duke@1 | 505 | * | FALSE |
duke@1 | 506 | * | NULL |
duke@1 | 507 | */ |
ksrini@1074 | 508 | JCExpression literal(Name prefix, int pos) { |
duke@1 | 509 | JCExpression t = errorTree; |
mcimadamore@1113 | 510 | switch (token.kind) { |
duke@1 | 511 | case INTLITERAL: |
duke@1 | 512 | try { |
duke@1 | 513 | t = F.at(pos).Literal( |
duke@1 | 514 | TypeTags.INT, |
mcimadamore@1113 | 515 | Convert.string2int(strval(prefix), token.radix())); |
duke@1 | 516 | } catch (NumberFormatException ex) { |
mcimadamore@1113 | 517 | error(token.pos, "int.number.too.large", strval(prefix)); |
duke@1 | 518 | } |
duke@1 | 519 | break; |
duke@1 | 520 | case LONGLITERAL: |
duke@1 | 521 | try { |
duke@1 | 522 | t = F.at(pos).Literal( |
duke@1 | 523 | TypeTags.LONG, |
mcimadamore@1113 | 524 | new Long(Convert.string2long(strval(prefix), token.radix()))); |
duke@1 | 525 | } catch (NumberFormatException ex) { |
mcimadamore@1113 | 526 | error(token.pos, "int.number.too.large", strval(prefix)); |
duke@1 | 527 | } |
duke@1 | 528 | break; |
duke@1 | 529 | case FLOATLITERAL: { |
mcimadamore@1113 | 530 | String proper = token.radix() == 16 ? |
mcimadamore@1113 | 531 | ("0x"+ token.stringVal()) : |
mcimadamore@1113 | 532 | token.stringVal(); |
duke@1 | 533 | Float n; |
duke@1 | 534 | try { |
duke@1 | 535 | n = Float.valueOf(proper); |
duke@1 | 536 | } catch (NumberFormatException ex) { |
jjg@788 | 537 | // error already reported in scanner |
duke@1 | 538 | n = Float.NaN; |
duke@1 | 539 | } |
duke@1 | 540 | if (n.floatValue() == 0.0f && !isZero(proper)) |
mcimadamore@1113 | 541 | error(token.pos, "fp.number.too.small"); |
duke@1 | 542 | else if (n.floatValue() == Float.POSITIVE_INFINITY) |
mcimadamore@1113 | 543 | error(token.pos, "fp.number.too.large"); |
duke@1 | 544 | else |
duke@1 | 545 | t = F.at(pos).Literal(TypeTags.FLOAT, n); |
duke@1 | 546 | break; |
duke@1 | 547 | } |
duke@1 | 548 | case DOUBLELITERAL: { |
mcimadamore@1113 | 549 | String proper = token.radix() == 16 ? |
mcimadamore@1113 | 550 | ("0x"+ token.stringVal()) : |
mcimadamore@1113 | 551 | token.stringVal(); |
duke@1 | 552 | Double n; |
duke@1 | 553 | try { |
duke@1 | 554 | n = Double.valueOf(proper); |
duke@1 | 555 | } catch (NumberFormatException ex) { |
duke@1 | 556 | // error already reported in scanner |
duke@1 | 557 | n = Double.NaN; |
duke@1 | 558 | } |
duke@1 | 559 | if (n.doubleValue() == 0.0d && !isZero(proper)) |
mcimadamore@1113 | 560 | error(token.pos, "fp.number.too.small"); |
duke@1 | 561 | else if (n.doubleValue() == Double.POSITIVE_INFINITY) |
mcimadamore@1113 | 562 | error(token.pos, "fp.number.too.large"); |
duke@1 | 563 | else |
duke@1 | 564 | t = F.at(pos).Literal(TypeTags.DOUBLE, n); |
duke@1 | 565 | break; |
duke@1 | 566 | } |
duke@1 | 567 | case CHARLITERAL: |
duke@1 | 568 | t = F.at(pos).Literal( |
duke@1 | 569 | TypeTags.CHAR, |
mcimadamore@1113 | 570 | token.stringVal().charAt(0) + 0); |
duke@1 | 571 | break; |
duke@1 | 572 | case STRINGLITERAL: |
duke@1 | 573 | t = F.at(pos).Literal( |
duke@1 | 574 | TypeTags.CLASS, |
mcimadamore@1113 | 575 | token.stringVal()); |
duke@1 | 576 | break; |
duke@1 | 577 | case TRUE: case FALSE: |
duke@1 | 578 | t = F.at(pos).Literal( |
duke@1 | 579 | TypeTags.BOOLEAN, |
mcimadamore@1113 | 580 | (token.kind == TRUE ? 1 : 0)); |
duke@1 | 581 | break; |
duke@1 | 582 | case NULL: |
duke@1 | 583 | t = F.at(pos).Literal( |
duke@1 | 584 | TypeTags.BOT, |
duke@1 | 585 | null); |
duke@1 | 586 | break; |
duke@1 | 587 | default: |
jjg@816 | 588 | Assert.error(); |
duke@1 | 589 | } |
duke@1 | 590 | if (t == errorTree) |
duke@1 | 591 | t = F.at(pos).Erroneous(); |
mcimadamore@1113 | 592 | storeEnd(t, token.endPos); |
mcimadamore@1113 | 593 | nextToken(); |
duke@1 | 594 | return t; |
duke@1 | 595 | } |
duke@1 | 596 | //where |
duke@1 | 597 | boolean isZero(String s) { |
duke@1 | 598 | char[] cs = s.toCharArray(); |
jjg@408 | 599 | int base = ((cs.length > 1 && Character.toLowerCase(cs[1]) == 'x') ? 16 : 10); |
duke@1 | 600 | int i = ((base==16) ? 2 : 0); |
duke@1 | 601 | while (i < cs.length && (cs[i] == '0' || cs[i] == '.')) i++; |
duke@1 | 602 | return !(i < cs.length && (Character.digit(cs[i], base) > 0)); |
duke@1 | 603 | } |
duke@1 | 604 | |
duke@1 | 605 | String strval(Name prefix) { |
mcimadamore@1113 | 606 | String s = token.stringVal(); |
jjg@113 | 607 | return prefix.isEmpty() ? s : prefix + s; |
duke@1 | 608 | } |
duke@1 | 609 | |
duke@1 | 610 | /** terms can be either expressions or types. |
duke@1 | 611 | */ |
jjg@111 | 612 | public JCExpression parseExpression() { |
duke@1 | 613 | return term(EXPR); |
duke@1 | 614 | } |
duke@1 | 615 | |
jjg@111 | 616 | public JCExpression parseType() { |
duke@1 | 617 | return term(TYPE); |
duke@1 | 618 | } |
duke@1 | 619 | |
duke@1 | 620 | JCExpression term(int newmode) { |
duke@1 | 621 | int prevmode = mode; |
duke@1 | 622 | mode = newmode; |
duke@1 | 623 | JCExpression t = term(); |
duke@1 | 624 | lastmode = mode; |
duke@1 | 625 | mode = prevmode; |
duke@1 | 626 | return t; |
duke@1 | 627 | } |
duke@1 | 628 | |
duke@1 | 629 | /** |
duke@1 | 630 | * Expression = Expression1 [ExpressionRest] |
duke@1 | 631 | * ExpressionRest = [AssignmentOperator Expression1] |
duke@1 | 632 | * AssignmentOperator = "=" | "+=" | "-=" | "*=" | "/=" | |
duke@1 | 633 | * "&=" | "|=" | "^=" | |
duke@1 | 634 | * "%=" | "<<=" | ">>=" | ">>>=" |
duke@1 | 635 | * Type = Type1 |
duke@1 | 636 | * TypeNoParams = TypeNoParams1 |
duke@1 | 637 | * StatementExpression = Expression |
duke@1 | 638 | * ConstantExpression = Expression |
duke@1 | 639 | */ |
duke@1 | 640 | JCExpression term() { |
duke@1 | 641 | JCExpression t = term1(); |
duke@1 | 642 | if ((mode & EXPR) != 0 && |
mcimadamore@1113 | 643 | token.kind == EQ || PLUSEQ.compareTo(token.kind) <= 0 && token.kind.compareTo(GTGTGTEQ) <= 0) |
duke@1 | 644 | return termRest(t); |
duke@1 | 645 | else |
duke@1 | 646 | return t; |
duke@1 | 647 | } |
duke@1 | 648 | |
duke@1 | 649 | JCExpression termRest(JCExpression t) { |
mcimadamore@1113 | 650 | switch (token.kind) { |
duke@1 | 651 | case EQ: { |
mcimadamore@1113 | 652 | int pos = token.pos; |
mcimadamore@1113 | 653 | nextToken(); |
duke@1 | 654 | mode = EXPR; |
duke@1 | 655 | JCExpression t1 = term(); |
duke@1 | 656 | return toP(F.at(pos).Assign(t, t1)); |
duke@1 | 657 | } |
duke@1 | 658 | case PLUSEQ: |
duke@1 | 659 | case SUBEQ: |
duke@1 | 660 | case STAREQ: |
duke@1 | 661 | case SLASHEQ: |
duke@1 | 662 | case PERCENTEQ: |
duke@1 | 663 | case AMPEQ: |
duke@1 | 664 | case BAREQ: |
duke@1 | 665 | case CARETEQ: |
duke@1 | 666 | case LTLTEQ: |
duke@1 | 667 | case GTGTEQ: |
duke@1 | 668 | case GTGTGTEQ: |
mcimadamore@1113 | 669 | int pos = token.pos; |
mcimadamore@1113 | 670 | TokenKind tk = token.kind; |
mcimadamore@1113 | 671 | nextToken(); |
duke@1 | 672 | mode = EXPR; |
duke@1 | 673 | JCExpression t1 = term(); |
mcimadamore@1113 | 674 | return F.at(pos).Assignop(optag(tk), t, t1); |
duke@1 | 675 | default: |
duke@1 | 676 | return t; |
duke@1 | 677 | } |
duke@1 | 678 | } |
duke@1 | 679 | |
duke@1 | 680 | /** Expression1 = Expression2 [Expression1Rest] |
duke@1 | 681 | * Type1 = Type2 |
duke@1 | 682 | * TypeNoParams1 = TypeNoParams2 |
duke@1 | 683 | */ |
duke@1 | 684 | JCExpression term1() { |
duke@1 | 685 | JCExpression t = term2(); |
mcimadamore@1113 | 686 | if ((mode & EXPR) != 0 && token.kind == QUES) { |
duke@1 | 687 | mode = EXPR; |
duke@1 | 688 | return term1Rest(t); |
duke@1 | 689 | } else { |
duke@1 | 690 | return t; |
duke@1 | 691 | } |
duke@1 | 692 | } |
duke@1 | 693 | |
duke@1 | 694 | /** Expression1Rest = ["?" Expression ":" Expression1] |
duke@1 | 695 | */ |
duke@1 | 696 | JCExpression term1Rest(JCExpression t) { |
mcimadamore@1113 | 697 | if (token.kind == QUES) { |
mcimadamore@1113 | 698 | int pos = token.pos; |
mcimadamore@1113 | 699 | nextToken(); |
duke@1 | 700 | JCExpression t1 = term(); |
duke@1 | 701 | accept(COLON); |
duke@1 | 702 | JCExpression t2 = term1(); |
duke@1 | 703 | return F.at(pos).Conditional(t, t1, t2); |
duke@1 | 704 | } else { |
duke@1 | 705 | return t; |
duke@1 | 706 | } |
duke@1 | 707 | } |
duke@1 | 708 | |
duke@1 | 709 | /** Expression2 = Expression3 [Expression2Rest] |
duke@1 | 710 | * Type2 = Type3 |
duke@1 | 711 | * TypeNoParams2 = TypeNoParams3 |
duke@1 | 712 | */ |
duke@1 | 713 | JCExpression term2() { |
duke@1 | 714 | JCExpression t = term3(); |
mcimadamore@1113 | 715 | if ((mode & EXPR) != 0 && prec(token.kind) >= TreeInfo.orPrec) { |
duke@1 | 716 | mode = EXPR; |
duke@1 | 717 | return term2Rest(t, TreeInfo.orPrec); |
duke@1 | 718 | } else { |
duke@1 | 719 | return t; |
duke@1 | 720 | } |
duke@1 | 721 | } |
duke@1 | 722 | |
duke@1 | 723 | /* Expression2Rest = {infixop Expression3} |
duke@1 | 724 | * | Expression3 instanceof Type |
duke@1 | 725 | * infixop = "||" |
duke@1 | 726 | * | "&&" |
duke@1 | 727 | * | "|" |
duke@1 | 728 | * | "^" |
duke@1 | 729 | * | "&" |
duke@1 | 730 | * | "==" | "!=" |
duke@1 | 731 | * | "<" | ">" | "<=" | ">=" |
duke@1 | 732 | * | "<<" | ">>" | ">>>" |
duke@1 | 733 | * | "+" | "-" |
duke@1 | 734 | * | "*" | "/" | "%" |
duke@1 | 735 | */ |
duke@1 | 736 | JCExpression term2Rest(JCExpression t, int minprec) { |
duke@1 | 737 | List<JCExpression[]> savedOd = odStackSupply.elems; |
duke@1 | 738 | JCExpression[] odStack = newOdStack(); |
duke@1 | 739 | List<Token[]> savedOp = opStackSupply.elems; |
duke@1 | 740 | Token[] opStack = newOpStack(); |
mcimadamore@1113 | 741 | |
duke@1 | 742 | // optimization, was odStack = new Tree[...]; opStack = new Tree[...]; |
duke@1 | 743 | int top = 0; |
duke@1 | 744 | odStack[0] = t; |
mcimadamore@1113 | 745 | int startPos = token.pos; |
mcimadamore@1113 | 746 | Token topOp = Tokens.DUMMY; |
mcimadamore@1113 | 747 | while (prec(token.kind) >= minprec) { |
duke@1 | 748 | opStack[top] = topOp; |
duke@1 | 749 | top++; |
mcimadamore@1113 | 750 | topOp = token; |
mcimadamore@1113 | 751 | nextToken(); |
mcimadamore@1113 | 752 | odStack[top] = (topOp.kind == INSTANCEOF) ? parseType() : term3(); |
mcimadamore@1113 | 753 | while (top > 0 && prec(topOp.kind) >= prec(token.kind)) { |
mcimadamore@1113 | 754 | odStack[top-1] = makeOp(topOp.pos, topOp.kind, odStack[top-1], |
duke@1 | 755 | odStack[top]); |
duke@1 | 756 | top--; |
duke@1 | 757 | topOp = opStack[top]; |
duke@1 | 758 | } |
duke@1 | 759 | } |
jjg@816 | 760 | Assert.check(top == 0); |
duke@1 | 761 | t = odStack[0]; |
duke@1 | 762 | |
jjg@1127 | 763 | if (t.hasTag(JCTree.Tag.PLUS)) { |
duke@1 | 764 | StringBuffer buf = foldStrings(t); |
duke@1 | 765 | if (buf != null) { |
duke@1 | 766 | t = toP(F.at(startPos).Literal(TypeTags.CLASS, buf.toString())); |
duke@1 | 767 | } |
duke@1 | 768 | } |
duke@1 | 769 | |
duke@1 | 770 | odStackSupply.elems = savedOd; // optimization |
duke@1 | 771 | opStackSupply.elems = savedOp; // optimization |
duke@1 | 772 | return t; |
duke@1 | 773 | } |
duke@1 | 774 | //where |
duke@1 | 775 | /** Construct a binary or type test node. |
duke@1 | 776 | */ |
duke@1 | 777 | private JCExpression makeOp(int pos, |
mcimadamore@1113 | 778 | TokenKind topOp, |
duke@1 | 779 | JCExpression od1, |
duke@1 | 780 | JCExpression od2) |
duke@1 | 781 | { |
duke@1 | 782 | if (topOp == INSTANCEOF) { |
duke@1 | 783 | return F.at(pos).TypeTest(od1, od2); |
duke@1 | 784 | } else { |
duke@1 | 785 | return F.at(pos).Binary(optag(topOp), od1, od2); |
duke@1 | 786 | } |
duke@1 | 787 | } |
duke@1 | 788 | /** If tree is a concatenation of string literals, replace it |
duke@1 | 789 | * by a single literal representing the concatenated string. |
duke@1 | 790 | */ |
duke@1 | 791 | protected StringBuffer foldStrings(JCTree tree) { |
ksrini@1062 | 792 | if (!allowStringFolding) |
ksrini@1062 | 793 | return null; |
duke@1 | 794 | List<String> buf = List.nil(); |
duke@1 | 795 | while (true) { |
jjg@1127 | 796 | if (tree.hasTag(LITERAL)) { |
duke@1 | 797 | JCLiteral lit = (JCLiteral) tree; |
duke@1 | 798 | if (lit.typetag == TypeTags.CLASS) { |
duke@1 | 799 | StringBuffer sbuf = |
duke@1 | 800 | new StringBuffer((String)lit.value); |
duke@1 | 801 | while (buf.nonEmpty()) { |
duke@1 | 802 | sbuf.append(buf.head); |
duke@1 | 803 | buf = buf.tail; |
duke@1 | 804 | } |
duke@1 | 805 | return sbuf; |
duke@1 | 806 | } |
jjg@1127 | 807 | } else if (tree.hasTag(JCTree.Tag.PLUS)) { |
duke@1 | 808 | JCBinary op = (JCBinary)tree; |
jjg@1127 | 809 | if (op.rhs.hasTag(LITERAL)) { |
duke@1 | 810 | JCLiteral lit = (JCLiteral) op.rhs; |
duke@1 | 811 | if (lit.typetag == TypeTags.CLASS) { |
duke@1 | 812 | buf = buf.prepend((String) lit.value); |
duke@1 | 813 | tree = op.lhs; |
duke@1 | 814 | continue; |
duke@1 | 815 | } |
duke@1 | 816 | } |
duke@1 | 817 | } |
duke@1 | 818 | return null; |
duke@1 | 819 | } |
duke@1 | 820 | } |
duke@1 | 821 | |
duke@1 | 822 | /** optimization: To save allocating a new operand/operator stack |
duke@1 | 823 | * for every binary operation, we use supplys. |
duke@1 | 824 | */ |
duke@1 | 825 | ListBuffer<JCExpression[]> odStackSupply = new ListBuffer<JCExpression[]>(); |
duke@1 | 826 | ListBuffer<Token[]> opStackSupply = new ListBuffer<Token[]>(); |
duke@1 | 827 | |
duke@1 | 828 | private JCExpression[] newOdStack() { |
duke@1 | 829 | if (odStackSupply.elems == odStackSupply.last) |
duke@1 | 830 | odStackSupply.append(new JCExpression[infixPrecedenceLevels + 1]); |
duke@1 | 831 | JCExpression[] odStack = odStackSupply.elems.head; |
duke@1 | 832 | odStackSupply.elems = odStackSupply.elems.tail; |
duke@1 | 833 | return odStack; |
duke@1 | 834 | } |
duke@1 | 835 | |
duke@1 | 836 | private Token[] newOpStack() { |
duke@1 | 837 | if (opStackSupply.elems == opStackSupply.last) |
duke@1 | 838 | opStackSupply.append(new Token[infixPrecedenceLevels + 1]); |
duke@1 | 839 | Token[] opStack = opStackSupply.elems.head; |
duke@1 | 840 | opStackSupply.elems = opStackSupply.elems.tail; |
duke@1 | 841 | return opStack; |
duke@1 | 842 | } |
duke@1 | 843 | |
duke@1 | 844 | /** Expression3 = PrefixOp Expression3 |
duke@1 | 845 | * | "(" Expr | TypeNoParams ")" Expression3 |
duke@1 | 846 | * | Primary {Selector} {PostfixOp} |
duke@1 | 847 | * Primary = "(" Expression ")" |
duke@1 | 848 | * | Literal |
duke@1 | 849 | * | [TypeArguments] THIS [Arguments] |
duke@1 | 850 | * | [TypeArguments] SUPER SuperSuffix |
duke@1 | 851 | * | NEW [TypeArguments] Creator |
jjg@722 | 852 | * | Ident { "." Ident } |
jjg@722 | 853 | * [ "[" ( "]" BracketsOpt "." CLASS | Expression "]" ) |
duke@1 | 854 | * | Arguments |
duke@1 | 855 | * | "." ( CLASS | THIS | [TypeArguments] SUPER Arguments | NEW [TypeArguments] InnerCreator ) |
duke@1 | 856 | * ] |
duke@1 | 857 | * | BasicType BracketsOpt "." CLASS |
duke@1 | 858 | * PrefixOp = "++" | "--" | "!" | "~" | "+" | "-" |
duke@1 | 859 | * PostfixOp = "++" | "--" |
duke@1 | 860 | * Type3 = Ident { "." Ident } [TypeArguments] {TypeSelector} BracketsOpt |
duke@1 | 861 | * | BasicType |
duke@1 | 862 | * TypeNoParams3 = Ident { "." Ident } BracketsOpt |
duke@1 | 863 | * Selector = "." [TypeArguments] Ident [Arguments] |
duke@1 | 864 | * | "." THIS |
duke@1 | 865 | * | "." [TypeArguments] SUPER SuperSuffix |
duke@1 | 866 | * | "." NEW [TypeArguments] InnerCreator |
duke@1 | 867 | * | "[" Expression "]" |
duke@1 | 868 | * TypeSelector = "." Ident [TypeArguments] |
duke@1 | 869 | * SuperSuffix = Arguments | "." Ident [Arguments] |
duke@1 | 870 | */ |
duke@1 | 871 | protected JCExpression term3() { |
mcimadamore@1113 | 872 | int pos = token.pos; |
duke@1 | 873 | JCExpression t; |
duke@1 | 874 | List<JCExpression> typeArgs = typeArgumentsOpt(EXPR); |
mcimadamore@1113 | 875 | switch (token.kind) { |
duke@1 | 876 | case QUES: |
duke@1 | 877 | if ((mode & TYPE) != 0 && (mode & (TYPEARG|NOPARAMS)) == TYPEARG) { |
duke@1 | 878 | mode = TYPE; |
duke@1 | 879 | return typeArgument(); |
duke@1 | 880 | } else |
duke@1 | 881 | return illegal(); |
duke@1 | 882 | case PLUSPLUS: case SUBSUB: case BANG: case TILDE: case PLUS: case SUB: |
duke@1 | 883 | if (typeArgs == null && (mode & EXPR) != 0) { |
mcimadamore@1113 | 884 | TokenKind tk = token.kind; |
mcimadamore@1113 | 885 | nextToken(); |
duke@1 | 886 | mode = EXPR; |
mcimadamore@1113 | 887 | if (tk == SUB && |
mcimadamore@1113 | 888 | (token.kind == INTLITERAL || token.kind == LONGLITERAL) && |
mcimadamore@1113 | 889 | token.radix() == 10) { |
duke@1 | 890 | mode = EXPR; |
ksrini@1074 | 891 | t = literal(names.hyphen, pos); |
duke@1 | 892 | } else { |
duke@1 | 893 | t = term3(); |
mcimadamore@1113 | 894 | return F.at(pos).Unary(unoptag(tk), t); |
duke@1 | 895 | } |
duke@1 | 896 | } else return illegal(); |
duke@1 | 897 | break; |
duke@1 | 898 | case LPAREN: |
duke@1 | 899 | if (typeArgs == null && (mode & EXPR) != 0) { |
mcimadamore@1113 | 900 | nextToken(); |
duke@1 | 901 | mode = EXPR | TYPE | NOPARAMS; |
duke@1 | 902 | t = term3(); |
mcimadamore@1113 | 903 | if ((mode & TYPE) != 0 && token.kind == LT) { |
duke@1 | 904 | // Could be a cast to a parameterized type |
jjg@1127 | 905 | JCTree.Tag op = JCTree.Tag.LT; |
mcimadamore@1113 | 906 | int pos1 = token.pos; |
mcimadamore@1113 | 907 | nextToken(); |
duke@1 | 908 | mode &= (EXPR | TYPE); |
duke@1 | 909 | mode |= TYPEARG; |
duke@1 | 910 | JCExpression t1 = term3(); |
duke@1 | 911 | if ((mode & TYPE) != 0 && |
mcimadamore@1113 | 912 | (token.kind == COMMA || token.kind == GT)) { |
duke@1 | 913 | mode = TYPE; |
duke@1 | 914 | ListBuffer<JCExpression> args = new ListBuffer<JCExpression>(); |
duke@1 | 915 | args.append(t1); |
mcimadamore@1113 | 916 | while (token.kind == COMMA) { |
mcimadamore@1113 | 917 | nextToken(); |
duke@1 | 918 | args.append(typeArgument()); |
duke@1 | 919 | } |
duke@1 | 920 | accept(GT); |
jjg@482 | 921 | t = toP(F.at(pos1).TypeApply(t, args.toList())); |
duke@1 | 922 | checkGenerics(); |
mcimadamore@1113 | 923 | while (token.kind == DOT) { |
mcimadamore@1113 | 924 | nextToken(); |
mcimadamore@185 | 925 | mode = TYPE; |
mcimadamore@1113 | 926 | t = toP(F.at(token.pos).Select(t, ident())); |
mcimadamore@185 | 927 | t = typeArgumentsOpt(t); |
mcimadamore@185 | 928 | } |
mcimadamore@195 | 929 | t = bracketsOpt(toP(t)); |
duke@1 | 930 | } else if ((mode & EXPR) != 0) { |
duke@1 | 931 | mode = EXPR; |
jjg@482 | 932 | JCExpression e = term2Rest(t1, TreeInfo.shiftPrec); |
jjg@482 | 933 | t = F.at(pos1).Binary(op, t, e); |
duke@1 | 934 | t = termRest(term1Rest(term2Rest(t, TreeInfo.orPrec))); |
duke@1 | 935 | } else { |
duke@1 | 936 | accept(GT); |
duke@1 | 937 | } |
mcimadamore@185 | 938 | } |
mcimadamore@185 | 939 | else { |
duke@1 | 940 | t = termRest(term1Rest(term2Rest(t, TreeInfo.orPrec))); |
duke@1 | 941 | } |
duke@1 | 942 | accept(RPAREN); |
duke@1 | 943 | lastmode = mode; |
duke@1 | 944 | mode = EXPR; |
duke@1 | 945 | if ((lastmode & EXPR) == 0) { |
duke@1 | 946 | JCExpression t1 = term3(); |
duke@1 | 947 | return F.at(pos).TypeCast(t, t1); |
duke@1 | 948 | } else if ((lastmode & TYPE) != 0) { |
mcimadamore@1113 | 949 | switch (token.kind) { |
duke@1 | 950 | /*case PLUSPLUS: case SUBSUB: */ |
duke@1 | 951 | case BANG: case TILDE: |
duke@1 | 952 | case LPAREN: case THIS: case SUPER: |
duke@1 | 953 | case INTLITERAL: case LONGLITERAL: case FLOATLITERAL: |
duke@1 | 954 | case DOUBLELITERAL: case CHARLITERAL: case STRINGLITERAL: |
duke@1 | 955 | case TRUE: case FALSE: case NULL: |
duke@1 | 956 | case NEW: case IDENTIFIER: case ASSERT: case ENUM: |
duke@1 | 957 | case BYTE: case SHORT: case CHAR: case INT: |
duke@1 | 958 | case LONG: case FLOAT: case DOUBLE: case BOOLEAN: case VOID: |
duke@1 | 959 | JCExpression t1 = term3(); |
duke@1 | 960 | return F.at(pos).TypeCast(t, t1); |
duke@1 | 961 | } |
duke@1 | 962 | } |
duke@1 | 963 | } else return illegal(); |
duke@1 | 964 | t = toP(F.at(pos).Parens(t)); |
duke@1 | 965 | break; |
duke@1 | 966 | case THIS: |
duke@1 | 967 | if ((mode & EXPR) != 0) { |
duke@1 | 968 | mode = EXPR; |
duke@1 | 969 | t = to(F.at(pos).Ident(names._this)); |
mcimadamore@1113 | 970 | nextToken(); |
duke@1 | 971 | if (typeArgs == null) |
duke@1 | 972 | t = argumentsOpt(null, t); |
duke@1 | 973 | else |
duke@1 | 974 | t = arguments(typeArgs, t); |
duke@1 | 975 | typeArgs = null; |
duke@1 | 976 | } else return illegal(); |
duke@1 | 977 | break; |
duke@1 | 978 | case SUPER: |
duke@1 | 979 | if ((mode & EXPR) != 0) { |
duke@1 | 980 | mode = EXPR; |
jjg@482 | 981 | t = to(F.at(pos).Ident(names._super)); |
jjg@482 | 982 | t = superSuffix(typeArgs, t); |
duke@1 | 983 | typeArgs = null; |
duke@1 | 984 | } else return illegal(); |
duke@1 | 985 | break; |
duke@1 | 986 | case INTLITERAL: case LONGLITERAL: case FLOATLITERAL: case DOUBLELITERAL: |
duke@1 | 987 | case CHARLITERAL: case STRINGLITERAL: |
duke@1 | 988 | case TRUE: case FALSE: case NULL: |
duke@1 | 989 | if (typeArgs == null && (mode & EXPR) != 0) { |
duke@1 | 990 | mode = EXPR; |
duke@1 | 991 | t = literal(names.empty); |
duke@1 | 992 | } else return illegal(); |
duke@1 | 993 | break; |
duke@1 | 994 | case NEW: |
duke@1 | 995 | if (typeArgs != null) return illegal(); |
duke@1 | 996 | if ((mode & EXPR) != 0) { |
duke@1 | 997 | mode = EXPR; |
mcimadamore@1113 | 998 | nextToken(); |
mcimadamore@1113 | 999 | if (token.kind == LT) typeArgs = typeArguments(false); |
duke@1 | 1000 | t = creator(pos, typeArgs); |
duke@1 | 1001 | typeArgs = null; |
duke@1 | 1002 | } else return illegal(); |
duke@1 | 1003 | break; |
duke@1 | 1004 | case IDENTIFIER: case ASSERT: case ENUM: |
duke@1 | 1005 | if (typeArgs != null) return illegal(); |
mcimadamore@1113 | 1006 | t = toP(F.at(token.pos).Ident(ident())); |
duke@1 | 1007 | loop: while (true) { |
mcimadamore@1113 | 1008 | pos = token.pos; |
mcimadamore@1113 | 1009 | switch (token.kind) { |
duke@1 | 1010 | case LBRACKET: |
mcimadamore@1113 | 1011 | nextToken(); |
mcimadamore@1113 | 1012 | if (token.kind == RBRACKET) { |
mcimadamore@1113 | 1013 | nextToken(); |
jjg@722 | 1014 | t = bracketsOpt(t); |
duke@1 | 1015 | t = toP(F.at(pos).TypeArray(t)); |
duke@1 | 1016 | t = bracketsSuffix(t); |
duke@1 | 1017 | } else { |
duke@1 | 1018 | if ((mode & EXPR) != 0) { |
duke@1 | 1019 | mode = EXPR; |
duke@1 | 1020 | JCExpression t1 = term(); |
duke@1 | 1021 | t = to(F.at(pos).Indexed(t, t1)); |
duke@1 | 1022 | } |
duke@1 | 1023 | accept(RBRACKET); |
duke@1 | 1024 | } |
duke@1 | 1025 | break loop; |
duke@1 | 1026 | case LPAREN: |
duke@1 | 1027 | if ((mode & EXPR) != 0) { |
duke@1 | 1028 | mode = EXPR; |
duke@1 | 1029 | t = arguments(typeArgs, t); |
duke@1 | 1030 | typeArgs = null; |
duke@1 | 1031 | } |
duke@1 | 1032 | break loop; |
duke@1 | 1033 | case DOT: |
mcimadamore@1113 | 1034 | nextToken(); |
mcimadamore@26 | 1035 | int oldmode = mode; |
mcimadamore@26 | 1036 | mode &= ~NOPARAMS; |
duke@1 | 1037 | typeArgs = typeArgumentsOpt(EXPR); |
mcimadamore@26 | 1038 | mode = oldmode; |
duke@1 | 1039 | if ((mode & EXPR) != 0) { |
mcimadamore@1113 | 1040 | switch (token.kind) { |
duke@1 | 1041 | case CLASS: |
duke@1 | 1042 | if (typeArgs != null) return illegal(); |
duke@1 | 1043 | mode = EXPR; |
duke@1 | 1044 | t = to(F.at(pos).Select(t, names._class)); |
mcimadamore@1113 | 1045 | nextToken(); |
duke@1 | 1046 | break loop; |
duke@1 | 1047 | case THIS: |
duke@1 | 1048 | if (typeArgs != null) return illegal(); |
duke@1 | 1049 | mode = EXPR; |
duke@1 | 1050 | t = to(F.at(pos).Select(t, names._this)); |
mcimadamore@1113 | 1051 | nextToken(); |
duke@1 | 1052 | break loop; |
duke@1 | 1053 | case SUPER: |
duke@1 | 1054 | mode = EXPR; |
duke@1 | 1055 | t = to(F.at(pos).Select(t, names._super)); |
duke@1 | 1056 | t = superSuffix(typeArgs, t); |
duke@1 | 1057 | typeArgs = null; |
duke@1 | 1058 | break loop; |
duke@1 | 1059 | case NEW: |
duke@1 | 1060 | if (typeArgs != null) return illegal(); |
duke@1 | 1061 | mode = EXPR; |
mcimadamore@1113 | 1062 | int pos1 = token.pos; |
mcimadamore@1113 | 1063 | nextToken(); |
mcimadamore@1113 | 1064 | if (token.kind == LT) typeArgs = typeArguments(false); |
duke@1 | 1065 | t = innerCreator(pos1, typeArgs, t); |
duke@1 | 1066 | typeArgs = null; |
duke@1 | 1067 | break loop; |
duke@1 | 1068 | } |
duke@1 | 1069 | } |
duke@1 | 1070 | // typeArgs saved for next loop iteration. |
duke@1 | 1071 | t = toP(F.at(pos).Select(t, ident())); |
duke@1 | 1072 | break; |
duke@1 | 1073 | default: |
duke@1 | 1074 | break loop; |
duke@1 | 1075 | } |
duke@1 | 1076 | } |
duke@1 | 1077 | if (typeArgs != null) illegal(); |
duke@1 | 1078 | t = typeArgumentsOpt(t); |
duke@1 | 1079 | break; |
duke@1 | 1080 | case BYTE: case SHORT: case CHAR: case INT: case LONG: case FLOAT: |
duke@1 | 1081 | case DOUBLE: case BOOLEAN: |
duke@1 | 1082 | if (typeArgs != null) illegal(); |
duke@1 | 1083 | t = bracketsSuffix(bracketsOpt(basicType())); |
duke@1 | 1084 | break; |
duke@1 | 1085 | case VOID: |
duke@1 | 1086 | if (typeArgs != null) illegal(); |
duke@1 | 1087 | if ((mode & EXPR) != 0) { |
mcimadamore@1113 | 1088 | nextToken(); |
mcimadamore@1113 | 1089 | if (token.kind == DOT) { |
duke@1 | 1090 | JCPrimitiveTypeTree ti = toP(F.at(pos).TypeIdent(TypeTags.VOID)); |
duke@1 | 1091 | t = bracketsSuffix(ti); |
duke@1 | 1092 | } else { |
duke@1 | 1093 | return illegal(pos); |
duke@1 | 1094 | } |
duke@1 | 1095 | } else { |
jrose@267 | 1096 | // Support the corner case of myMethodHandle.<void>invoke() by passing |
jrose@267 | 1097 | // a void type (like other primitive types) to the next phase. |
jrose@267 | 1098 | // The error will be reported in Attr.attribTypes or Attr.visitApply. |
jrose@267 | 1099 | JCPrimitiveTypeTree ti = to(F.at(pos).TypeIdent(TypeTags.VOID)); |
mcimadamore@1113 | 1100 | nextToken(); |
jrose@267 | 1101 | return ti; |
jrose@267 | 1102 | //return illegal(); |
duke@1 | 1103 | } |
duke@1 | 1104 | break; |
duke@1 | 1105 | default: |
duke@1 | 1106 | return illegal(); |
duke@1 | 1107 | } |
duke@1 | 1108 | if (typeArgs != null) illegal(); |
duke@1 | 1109 | while (true) { |
mcimadamore@1113 | 1110 | int pos1 = token.pos; |
mcimadamore@1113 | 1111 | if (token.kind == LBRACKET) { |
mcimadamore@1113 | 1112 | nextToken(); |
duke@1 | 1113 | if ((mode & TYPE) != 0) { |
duke@1 | 1114 | int oldmode = mode; |
duke@1 | 1115 | mode = TYPE; |
mcimadamore@1113 | 1116 | if (token.kind == RBRACKET) { |
mcimadamore@1113 | 1117 | nextToken(); |
jjg@722 | 1118 | t = bracketsOpt(t); |
duke@1 | 1119 | t = toP(F.at(pos1).TypeArray(t)); |
duke@1 | 1120 | return t; |
duke@1 | 1121 | } |
duke@1 | 1122 | mode = oldmode; |
duke@1 | 1123 | } |
duke@1 | 1124 | if ((mode & EXPR) != 0) { |
duke@1 | 1125 | mode = EXPR; |
duke@1 | 1126 | JCExpression t1 = term(); |
duke@1 | 1127 | t = to(F.at(pos1).Indexed(t, t1)); |
duke@1 | 1128 | } |
duke@1 | 1129 | accept(RBRACKET); |
mcimadamore@1113 | 1130 | } else if (token.kind == DOT) { |
mcimadamore@1113 | 1131 | nextToken(); |
duke@1 | 1132 | typeArgs = typeArgumentsOpt(EXPR); |
mcimadamore@1113 | 1133 | if (token.kind == SUPER && (mode & EXPR) != 0) { |
duke@1 | 1134 | mode = EXPR; |
duke@1 | 1135 | t = to(F.at(pos1).Select(t, names._super)); |
mcimadamore@1113 | 1136 | nextToken(); |
duke@1 | 1137 | t = arguments(typeArgs, t); |
duke@1 | 1138 | typeArgs = null; |
mcimadamore@1113 | 1139 | } else if (token.kind == NEW && (mode & EXPR) != 0) { |
duke@1 | 1140 | if (typeArgs != null) return illegal(); |
duke@1 | 1141 | mode = EXPR; |
mcimadamore@1113 | 1142 | int pos2 = token.pos; |
mcimadamore@1113 | 1143 | nextToken(); |
mcimadamore@1113 | 1144 | if (token.kind == LT) typeArgs = typeArguments(false); |
duke@1 | 1145 | t = innerCreator(pos2, typeArgs, t); |
duke@1 | 1146 | typeArgs = null; |
duke@1 | 1147 | } else { |
duke@1 | 1148 | t = toP(F.at(pos1).Select(t, ident())); |
duke@1 | 1149 | t = argumentsOpt(typeArgs, typeArgumentsOpt(t)); |
duke@1 | 1150 | typeArgs = null; |
duke@1 | 1151 | } |
duke@1 | 1152 | } else { |
duke@1 | 1153 | break; |
duke@1 | 1154 | } |
duke@1 | 1155 | } |
mcimadamore@1113 | 1156 | while ((token.kind == PLUSPLUS || token.kind == SUBSUB) && (mode & EXPR) != 0) { |
duke@1 | 1157 | mode = EXPR; |
mcimadamore@1113 | 1158 | t = to(F.at(token.pos).Unary( |
jjg@1127 | 1159 | token.kind == PLUSPLUS ? POSTINC : POSTDEC, t)); |
mcimadamore@1113 | 1160 | nextToken(); |
duke@1 | 1161 | } |
duke@1 | 1162 | return toP(t); |
duke@1 | 1163 | } |
duke@1 | 1164 | |
duke@1 | 1165 | /** SuperSuffix = Arguments | "." [TypeArguments] Ident [Arguments] |
duke@1 | 1166 | */ |
duke@1 | 1167 | JCExpression superSuffix(List<JCExpression> typeArgs, JCExpression t) { |
mcimadamore@1113 | 1168 | nextToken(); |
mcimadamore@1113 | 1169 | if (token.kind == LPAREN || typeArgs != null) { |
duke@1 | 1170 | t = arguments(typeArgs, t); |
duke@1 | 1171 | } else { |
mcimadamore@1113 | 1172 | int pos = token.pos; |
duke@1 | 1173 | accept(DOT); |
mcimadamore@1113 | 1174 | typeArgs = (token.kind == LT) ? typeArguments(false) : null; |
duke@1 | 1175 | t = toP(F.at(pos).Select(t, ident())); |
duke@1 | 1176 | t = argumentsOpt(typeArgs, t); |
duke@1 | 1177 | } |
duke@1 | 1178 | return t; |
duke@1 | 1179 | } |
duke@1 | 1180 | |
duke@1 | 1181 | /** BasicType = BYTE | SHORT | CHAR | INT | LONG | FLOAT | DOUBLE | BOOLEAN |
duke@1 | 1182 | */ |
duke@1 | 1183 | JCPrimitiveTypeTree basicType() { |
mcimadamore@1113 | 1184 | JCPrimitiveTypeTree t = to(F.at(token.pos).TypeIdent(typetag(token.kind))); |
mcimadamore@1113 | 1185 | nextToken(); |
duke@1 | 1186 | return t; |
duke@1 | 1187 | } |
duke@1 | 1188 | |
duke@1 | 1189 | /** ArgumentsOpt = [ Arguments ] |
duke@1 | 1190 | */ |
duke@1 | 1191 | JCExpression argumentsOpt(List<JCExpression> typeArgs, JCExpression t) { |
mcimadamore@1113 | 1192 | if ((mode & EXPR) != 0 && token.kind == LPAREN || typeArgs != null) { |
duke@1 | 1193 | mode = EXPR; |
duke@1 | 1194 | return arguments(typeArgs, t); |
duke@1 | 1195 | } else { |
duke@1 | 1196 | return t; |
duke@1 | 1197 | } |
duke@1 | 1198 | } |
duke@1 | 1199 | |
duke@1 | 1200 | /** Arguments = "(" [Expression { COMMA Expression }] ")" |
duke@1 | 1201 | */ |
duke@1 | 1202 | List<JCExpression> arguments() { |
duke@1 | 1203 | ListBuffer<JCExpression> args = lb(); |
mcimadamore@1113 | 1204 | if (token.kind == LPAREN) { |
mcimadamore@1113 | 1205 | nextToken(); |
mcimadamore@1113 | 1206 | if (token.kind != RPAREN) { |
jjg@111 | 1207 | args.append(parseExpression()); |
mcimadamore@1113 | 1208 | while (token.kind == COMMA) { |
mcimadamore@1113 | 1209 | nextToken(); |
jjg@111 | 1210 | args.append(parseExpression()); |
duke@1 | 1211 | } |
duke@1 | 1212 | } |
duke@1 | 1213 | accept(RPAREN); |
duke@1 | 1214 | } else { |
mcimadamore@1113 | 1215 | syntaxError(token.pos, "expected", LPAREN); |
duke@1 | 1216 | } |
duke@1 | 1217 | return args.toList(); |
duke@1 | 1218 | } |
duke@1 | 1219 | |
duke@1 | 1220 | JCMethodInvocation arguments(List<JCExpression> typeArgs, JCExpression t) { |
mcimadamore@1113 | 1221 | int pos = token.pos; |
duke@1 | 1222 | List<JCExpression> args = arguments(); |
duke@1 | 1223 | return toP(F.at(pos).Apply(typeArgs, t, args)); |
duke@1 | 1224 | } |
duke@1 | 1225 | |
duke@1 | 1226 | /** TypeArgumentsOpt = [ TypeArguments ] |
duke@1 | 1227 | */ |
duke@1 | 1228 | JCExpression typeArgumentsOpt(JCExpression t) { |
mcimadamore@1113 | 1229 | if (token.kind == LT && |
duke@1 | 1230 | (mode & TYPE) != 0 && |
duke@1 | 1231 | (mode & NOPARAMS) == 0) { |
duke@1 | 1232 | mode = TYPE; |
duke@1 | 1233 | checkGenerics(); |
mcimadamore@948 | 1234 | return typeArguments(t, false); |
duke@1 | 1235 | } else { |
duke@1 | 1236 | return t; |
duke@1 | 1237 | } |
duke@1 | 1238 | } |
duke@1 | 1239 | List<JCExpression> typeArgumentsOpt() { |
duke@1 | 1240 | return typeArgumentsOpt(TYPE); |
duke@1 | 1241 | } |
duke@1 | 1242 | |
duke@1 | 1243 | List<JCExpression> typeArgumentsOpt(int useMode) { |
mcimadamore@1113 | 1244 | if (token.kind == LT) { |
duke@1 | 1245 | checkGenerics(); |
duke@1 | 1246 | if ((mode & useMode) == 0 || |
duke@1 | 1247 | (mode & NOPARAMS) != 0) { |
duke@1 | 1248 | illegal(); |
duke@1 | 1249 | } |
duke@1 | 1250 | mode = useMode; |
mcimadamore@948 | 1251 | return typeArguments(false); |
duke@1 | 1252 | } |
duke@1 | 1253 | return null; |
duke@1 | 1254 | } |
duke@1 | 1255 | |
duke@1 | 1256 | /** TypeArguments = "<" TypeArgument {"," TypeArgument} ">" |
duke@1 | 1257 | */ |
mcimadamore@948 | 1258 | List<JCExpression> typeArguments(boolean diamondAllowed) { |
mcimadamore@1113 | 1259 | if (token.kind == LT) { |
mcimadamore@1113 | 1260 | nextToken(); |
mcimadamore@1113 | 1261 | if (token.kind == GT && diamondAllowed) { |
mcimadamore@537 | 1262 | checkDiamond(); |
mcimadamore@948 | 1263 | mode |= DIAMOND; |
mcimadamore@1113 | 1264 | nextToken(); |
mcimadamore@537 | 1265 | return List.nil(); |
mcimadamore@948 | 1266 | } else { |
mcimadamore@948 | 1267 | ListBuffer<JCExpression> args = ListBuffer.lb(); |
jjg@111 | 1268 | args.append(((mode & EXPR) == 0) ? typeArgument() : parseType()); |
mcimadamore@1113 | 1269 | while (token.kind == COMMA) { |
mcimadamore@1113 | 1270 | nextToken(); |
mcimadamore@948 | 1271 | args.append(((mode & EXPR) == 0) ? typeArgument() : parseType()); |
mcimadamore@948 | 1272 | } |
mcimadamore@1113 | 1273 | switch (token.kind) { |
mcimadamore@1113 | 1274 | |
mcimadamore@1113 | 1275 | case GTGTGTEQ: case GTGTEQ: case GTEQ: |
mcimadamore@1113 | 1276 | case GTGTGT: case GTGT: |
mcimadamore@1113 | 1277 | token = S.split(); |
mcimadamore@948 | 1278 | break; |
ksrini@1074 | 1279 | case GT: |
mcimadamore@1113 | 1280 | nextToken(); |
ksrini@1074 | 1281 | break; |
mcimadamore@948 | 1282 | default: |
mcimadamore@1113 | 1283 | args.append(syntaxError(token.pos, "expected", GT)); |
mcimadamore@948 | 1284 | break; |
mcimadamore@948 | 1285 | } |
mcimadamore@948 | 1286 | return args.toList(); |
duke@1 | 1287 | } |
duke@1 | 1288 | } else { |
mcimadamore@1113 | 1289 | return List.<JCExpression>of(syntaxError(token.pos, "expected", LT)); |
duke@1 | 1290 | } |
duke@1 | 1291 | } |
duke@1 | 1292 | |
duke@1 | 1293 | /** TypeArgument = Type |
jjg@722 | 1294 | * | "?" |
jjg@722 | 1295 | * | "?" EXTENDS Type {"&" Type} |
jjg@722 | 1296 | * | "?" SUPER Type |
duke@1 | 1297 | */ |
duke@1 | 1298 | JCExpression typeArgument() { |
mcimadamore@1113 | 1299 | if (token.kind != QUES) return parseType(); |
mcimadamore@1113 | 1300 | int pos = token.pos; |
mcimadamore@1113 | 1301 | nextToken(); |
mcimadamore@1113 | 1302 | if (token.kind == EXTENDS) { |
jjg@482 | 1303 | TypeBoundKind t = to(F.at(pos).TypeBoundKind(BoundKind.EXTENDS)); |
mcimadamore@1113 | 1304 | nextToken(); |
jjg@482 | 1305 | JCExpression bound = parseType(); |
jjg@722 | 1306 | return F.at(pos).Wildcard(t, bound); |
mcimadamore@1113 | 1307 | } else if (token.kind == SUPER) { |
jjg@482 | 1308 | TypeBoundKind t = to(F.at(pos).TypeBoundKind(BoundKind.SUPER)); |
mcimadamore@1113 | 1309 | nextToken(); |
jjg@482 | 1310 | JCExpression bound = parseType(); |
jjg@722 | 1311 | return F.at(pos).Wildcard(t, bound); |
mcimadamore@1113 | 1312 | } else if (token.kind == IDENTIFIER) { |
duke@1 | 1313 | //error recovery |
duke@1 | 1314 | TypeBoundKind t = F.at(Position.NOPOS).TypeBoundKind(BoundKind.UNBOUND); |
duke@1 | 1315 | JCExpression wc = toP(F.at(pos).Wildcard(t, null)); |
mcimadamore@1113 | 1316 | JCIdent id = toP(F.at(token.pos).Ident(ident())); |
ksrini@1074 | 1317 | JCErroneous err = F.at(pos).Erroneous(List.<JCTree>of(wc, id)); |
ksrini@1074 | 1318 | reportSyntaxError(err, "expected3", GT, EXTENDS, SUPER); |
ksrini@1074 | 1319 | return err; |
duke@1 | 1320 | } else { |
jjg@482 | 1321 | TypeBoundKind t = toP(F.at(pos).TypeBoundKind(BoundKind.UNBOUND)); |
jjg@722 | 1322 | return toP(F.at(pos).Wildcard(t, null)); |
duke@1 | 1323 | } |
duke@1 | 1324 | } |
duke@1 | 1325 | |
mcimadamore@948 | 1326 | JCTypeApply typeArguments(JCExpression t, boolean diamondAllowed) { |
mcimadamore@1113 | 1327 | int pos = token.pos; |
mcimadamore@948 | 1328 | List<JCExpression> args = typeArguments(diamondAllowed); |
duke@1 | 1329 | return toP(F.at(pos).TypeApply(t, args)); |
duke@1 | 1330 | } |
duke@1 | 1331 | |
jjg@722 | 1332 | /** BracketsOpt = {"[" "]"} |
duke@1 | 1333 | */ |
jjg@722 | 1334 | private JCExpression bracketsOpt(JCExpression t) { |
mcimadamore@1113 | 1335 | if (token.kind == LBRACKET) { |
mcimadamore@1113 | 1336 | int pos = token.pos; |
mcimadamore@1113 | 1337 | nextToken(); |
jjg@722 | 1338 | t = bracketsOptCont(t, pos); |
jjg@722 | 1339 | F.at(pos); |
duke@1 | 1340 | } |
duke@1 | 1341 | return t; |
duke@1 | 1342 | } |
duke@1 | 1343 | |
jjg@722 | 1344 | private JCArrayTypeTree bracketsOptCont(JCExpression t, int pos) { |
duke@1 | 1345 | accept(RBRACKET); |
jjg@722 | 1346 | t = bracketsOpt(t); |
duke@1 | 1347 | return toP(F.at(pos).TypeArray(t)); |
duke@1 | 1348 | } |
duke@1 | 1349 | |
duke@1 | 1350 | /** BracketsSuffixExpr = "." CLASS |
duke@1 | 1351 | * BracketsSuffixType = |
duke@1 | 1352 | */ |
duke@1 | 1353 | JCExpression bracketsSuffix(JCExpression t) { |
mcimadamore@1113 | 1354 | if ((mode & EXPR) != 0 && token.kind == DOT) { |
duke@1 | 1355 | mode = EXPR; |
mcimadamore@1113 | 1356 | int pos = token.pos; |
mcimadamore@1113 | 1357 | nextToken(); |
duke@1 | 1358 | accept(CLASS); |
ksrini@1138 | 1359 | if (token.pos == endPosTable.errorEndPos) { |
duke@1 | 1360 | // error recovery |
duke@1 | 1361 | Name name = null; |
mcimadamore@1113 | 1362 | if (token.kind == IDENTIFIER) { |
mcimadamore@1113 | 1363 | name = token.name(); |
mcimadamore@1113 | 1364 | nextToken(); |
duke@1 | 1365 | } else { |
duke@1 | 1366 | name = names.error; |
duke@1 | 1367 | } |
duke@1 | 1368 | t = F.at(pos).Erroneous(List.<JCTree>of(toP(F.at(pos).Select(t, name)))); |
duke@1 | 1369 | } else { |
duke@1 | 1370 | t = toP(F.at(pos).Select(t, names._class)); |
duke@1 | 1371 | } |
duke@1 | 1372 | } else if ((mode & TYPE) != 0) { |
duke@1 | 1373 | mode = TYPE; |
duke@1 | 1374 | } else { |
mcimadamore@1113 | 1375 | syntaxError(token.pos, "dot.class.expected"); |
duke@1 | 1376 | } |
duke@1 | 1377 | return t; |
duke@1 | 1378 | } |
duke@1 | 1379 | |
jjg@722 | 1380 | /** Creator = Qualident [TypeArguments] ( ArrayCreatorRest | ClassCreatorRest ) |
duke@1 | 1381 | */ |
duke@1 | 1382 | JCExpression creator(int newpos, List<JCExpression> typeArgs) { |
mcimadamore@1113 | 1383 | switch (token.kind) { |
duke@1 | 1384 | case BYTE: case SHORT: case CHAR: case INT: case LONG: case FLOAT: |
duke@1 | 1385 | case DOUBLE: case BOOLEAN: |
jjg@722 | 1386 | if (typeArgs == null) |
jjg@722 | 1387 | return arrayCreatorRest(newpos, basicType()); |
duke@1 | 1388 | break; |
duke@1 | 1389 | default: |
duke@1 | 1390 | } |
duke@1 | 1391 | JCExpression t = qualident(); |
duke@1 | 1392 | int oldmode = mode; |
mcimadamore@948 | 1393 | mode = TYPE; |
mcimadamore@948 | 1394 | boolean diamondFound = false; |
mcimadamore@1061 | 1395 | int lastTypeargsPos = -1; |
mcimadamore@1113 | 1396 | if (token.kind == LT) { |
duke@1 | 1397 | checkGenerics(); |
mcimadamore@1113 | 1398 | lastTypeargsPos = token.pos; |
mcimadamore@948 | 1399 | t = typeArguments(t, true); |
mcimadamore@948 | 1400 | diamondFound = (mode & DIAMOND) != 0; |
duke@1 | 1401 | } |
mcimadamore@1113 | 1402 | while (token.kind == DOT) { |
mcimadamore@948 | 1403 | if (diamondFound) { |
mcimadamore@948 | 1404 | //cannot select after a diamond |
ksrini@1074 | 1405 | illegal(); |
mcimadamore@948 | 1406 | } |
mcimadamore@1113 | 1407 | int pos = token.pos; |
mcimadamore@1113 | 1408 | nextToken(); |
duke@1 | 1409 | t = toP(F.at(pos).Select(t, ident())); |
mcimadamore@1113 | 1410 | if (token.kind == LT) { |
mcimadamore@1113 | 1411 | lastTypeargsPos = token.pos; |
duke@1 | 1412 | checkGenerics(); |
mcimadamore@948 | 1413 | t = typeArguments(t, true); |
mcimadamore@948 | 1414 | diamondFound = (mode & DIAMOND) != 0; |
duke@1 | 1415 | } |
duke@1 | 1416 | } |
duke@1 | 1417 | mode = oldmode; |
mcimadamore@1113 | 1418 | if (token.kind == LBRACKET) { |
duke@1 | 1419 | JCExpression e = arrayCreatorRest(newpos, t); |
mcimadamore@1061 | 1420 | if (diamondFound) { |
mcimadamore@1061 | 1421 | reportSyntaxError(lastTypeargsPos, "cannot.create.array.with.diamond"); |
mcimadamore@1061 | 1422 | return toP(F.at(newpos).Erroneous(List.of(e))); |
mcimadamore@1061 | 1423 | } |
mcimadamore@1061 | 1424 | else if (typeArgs != null) { |
duke@1 | 1425 | int pos = newpos; |
duke@1 | 1426 | if (!typeArgs.isEmpty() && typeArgs.head.pos != Position.NOPOS) { |
duke@1 | 1427 | // note: this should always happen but we should |
duke@1 | 1428 | // not rely on this as the parser is continuously |
duke@1 | 1429 | // modified to improve error recovery. |
duke@1 | 1430 | pos = typeArgs.head.pos; |
duke@1 | 1431 | } |
mcimadamore@1113 | 1432 | setErrorEndPos(S.prevToken().endPos); |
ksrini@1074 | 1433 | JCErroneous err = F.at(pos).Erroneous(typeArgs.prepend(e)); |
ksrini@1074 | 1434 | reportSyntaxError(err, "cannot.create.array.with.type.arguments"); |
ksrini@1074 | 1435 | return toP(err); |
duke@1 | 1436 | } |
duke@1 | 1437 | return e; |
mcimadamore@1113 | 1438 | } else if (token.kind == LPAREN) { |
jjg@722 | 1439 | return classCreatorRest(newpos, null, typeArgs, t); |
duke@1 | 1440 | } else { |
mcimadamore@1113 | 1441 | setErrorEndPos(token.pos); |
mcimadamore@1113 | 1442 | reportSyntaxError(token.pos, "expected2", LPAREN, LBRACKET); |
duke@1 | 1443 | t = toP(F.at(newpos).NewClass(null, typeArgs, t, List.<JCExpression>nil(), null)); |
duke@1 | 1444 | return toP(F.at(newpos).Erroneous(List.<JCTree>of(t))); |
duke@1 | 1445 | } |
duke@1 | 1446 | } |
duke@1 | 1447 | |
duke@1 | 1448 | /** InnerCreator = Ident [TypeArguments] ClassCreatorRest |
duke@1 | 1449 | */ |
duke@1 | 1450 | JCExpression innerCreator(int newpos, List<JCExpression> typeArgs, JCExpression encl) { |
mcimadamore@1113 | 1451 | JCExpression t = toP(F.at(token.pos).Ident(ident())); |
mcimadamore@1113 | 1452 | if (token.kind == LT) { |
mcimadamore@537 | 1453 | int oldmode = mode; |
duke@1 | 1454 | checkGenerics(); |
mcimadamore@948 | 1455 | t = typeArguments(t, true); |
mcimadamore@537 | 1456 | mode = oldmode; |
duke@1 | 1457 | } |
duke@1 | 1458 | return classCreatorRest(newpos, encl, typeArgs, t); |
duke@1 | 1459 | } |
duke@1 | 1460 | |
jjg@722 | 1461 | /** ArrayCreatorRest = "[" ( "]" BracketsOpt ArrayInitializer |
jjg@722 | 1462 | * | Expression "]" {"[" Expression "]"} BracketsOpt ) |
duke@1 | 1463 | */ |
duke@1 | 1464 | JCExpression arrayCreatorRest(int newpos, JCExpression elemtype) { |
duke@1 | 1465 | accept(LBRACKET); |
mcimadamore@1113 | 1466 | if (token.kind == RBRACKET) { |
duke@1 | 1467 | accept(RBRACKET); |
jjg@722 | 1468 | elemtype = bracketsOpt(elemtype); |
mcimadamore@1113 | 1469 | if (token.kind == LBRACE) { |
jjg@722 | 1470 | return arrayInitializer(newpos, elemtype); |
duke@1 | 1471 | } else { |
ksrini@1074 | 1472 | JCExpression t = toP(F.at(newpos).NewArray(elemtype, List.<JCExpression>nil(), null)); |
mcimadamore@1113 | 1473 | return syntaxError(token.pos, List.<JCTree>of(t), "array.dimension.missing"); |
duke@1 | 1474 | } |
duke@1 | 1475 | } else { |
duke@1 | 1476 | ListBuffer<JCExpression> dims = new ListBuffer<JCExpression>(); |
jjg@111 | 1477 | dims.append(parseExpression()); |
duke@1 | 1478 | accept(RBRACKET); |
mcimadamore@1113 | 1479 | while (token.kind == LBRACKET) { |
mcimadamore@1113 | 1480 | int pos = token.pos; |
mcimadamore@1113 | 1481 | nextToken(); |
mcimadamore@1113 | 1482 | if (token.kind == RBRACKET) { |
jjg@722 | 1483 | elemtype = bracketsOptCont(elemtype, pos); |
duke@1 | 1484 | } else { |
jjg@722 | 1485 | dims.append(parseExpression()); |
jjg@722 | 1486 | accept(RBRACKET); |
duke@1 | 1487 | } |
duke@1 | 1488 | } |
jjg@722 | 1489 | return toP(F.at(newpos).NewArray(elemtype, dims.toList(), null)); |
duke@1 | 1490 | } |
duke@1 | 1491 | } |
duke@1 | 1492 | |
duke@1 | 1493 | /** ClassCreatorRest = Arguments [ClassBody] |
duke@1 | 1494 | */ |
jjg@308 | 1495 | JCNewClass classCreatorRest(int newpos, |
duke@1 | 1496 | JCExpression encl, |
duke@1 | 1497 | List<JCExpression> typeArgs, |
duke@1 | 1498 | JCExpression t) |
duke@1 | 1499 | { |
duke@1 | 1500 | List<JCExpression> args = arguments(); |
duke@1 | 1501 | JCClassDecl body = null; |
mcimadamore@1113 | 1502 | if (token.kind == LBRACE) { |
mcimadamore@1113 | 1503 | int pos = token.pos; |
duke@1 | 1504 | List<JCTree> defs = classOrInterfaceBody(names.empty, false); |
duke@1 | 1505 | JCModifiers mods = F.at(Position.NOPOS).Modifiers(0); |
duke@1 | 1506 | body = toP(F.at(pos).AnonymousClassDef(mods, defs)); |
duke@1 | 1507 | } |
duke@1 | 1508 | return toP(F.at(newpos).NewClass(encl, typeArgs, t, args, body)); |
duke@1 | 1509 | } |
duke@1 | 1510 | |
duke@1 | 1511 | /** ArrayInitializer = "{" [VariableInitializer {"," VariableInitializer}] [","] "}" |
duke@1 | 1512 | */ |
duke@1 | 1513 | JCExpression arrayInitializer(int newpos, JCExpression t) { |
duke@1 | 1514 | accept(LBRACE); |
duke@1 | 1515 | ListBuffer<JCExpression> elems = new ListBuffer<JCExpression>(); |
mcimadamore@1113 | 1516 | if (token.kind == COMMA) { |
mcimadamore@1113 | 1517 | nextToken(); |
mcimadamore@1113 | 1518 | } else if (token.kind != RBRACE) { |
duke@1 | 1519 | elems.append(variableInitializer()); |
mcimadamore@1113 | 1520 | while (token.kind == COMMA) { |
mcimadamore@1113 | 1521 | nextToken(); |
mcimadamore@1113 | 1522 | if (token.kind == RBRACE) break; |
duke@1 | 1523 | elems.append(variableInitializer()); |
duke@1 | 1524 | } |
duke@1 | 1525 | } |
duke@1 | 1526 | accept(RBRACE); |
duke@1 | 1527 | return toP(F.at(newpos).NewArray(t, List.<JCExpression>nil(), elems.toList())); |
duke@1 | 1528 | } |
duke@1 | 1529 | |
duke@1 | 1530 | /** VariableInitializer = ArrayInitializer | Expression |
duke@1 | 1531 | */ |
duke@1 | 1532 | public JCExpression variableInitializer() { |
mcimadamore@1113 | 1533 | return token.kind == LBRACE ? arrayInitializer(token.pos, null) : parseExpression(); |
duke@1 | 1534 | } |
duke@1 | 1535 | |
duke@1 | 1536 | /** ParExpression = "(" Expression ")" |
duke@1 | 1537 | */ |
duke@1 | 1538 | JCExpression parExpression() { |
ksrini@1138 | 1539 | int pos = token.pos; |
duke@1 | 1540 | accept(LPAREN); |
jjg@111 | 1541 | JCExpression t = parseExpression(); |
duke@1 | 1542 | accept(RPAREN); |
ksrini@1138 | 1543 | return toP(F.at(pos).Parens(t)); |
duke@1 | 1544 | } |
duke@1 | 1545 | |
duke@1 | 1546 | /** Block = "{" BlockStatements "}" |
duke@1 | 1547 | */ |
duke@1 | 1548 | JCBlock block(int pos, long flags) { |
duke@1 | 1549 | accept(LBRACE); |
duke@1 | 1550 | List<JCStatement> stats = blockStatements(); |
duke@1 | 1551 | JCBlock t = F.at(pos).Block(flags, stats); |
mcimadamore@1113 | 1552 | while (token.kind == CASE || token.kind == DEFAULT) { |
mcimadamore@1113 | 1553 | syntaxError("orphaned", token.kind); |
duke@1 | 1554 | switchBlockStatementGroups(); |
duke@1 | 1555 | } |
duke@1 | 1556 | // the Block node has a field "endpos" for first char of last token, which is |
duke@1 | 1557 | // usually but not necessarily the last char of the last token. |
mcimadamore@1113 | 1558 | t.endpos = token.pos; |
duke@1 | 1559 | accept(RBRACE); |
duke@1 | 1560 | return toP(t); |
duke@1 | 1561 | } |
duke@1 | 1562 | |
duke@1 | 1563 | public JCBlock block() { |
mcimadamore@1113 | 1564 | return block(token.pos, 0); |
duke@1 | 1565 | } |
duke@1 | 1566 | |
duke@1 | 1567 | /** BlockStatements = { BlockStatement } |
duke@1 | 1568 | * BlockStatement = LocalVariableDeclarationStatement |
duke@1 | 1569 | * | ClassOrInterfaceOrEnumDeclaration |
duke@1 | 1570 | * | [Ident ":"] Statement |
duke@1 | 1571 | * LocalVariableDeclarationStatement |
duke@1 | 1572 | * = { FINAL | '@' Annotation } Type VariableDeclarators ";" |
duke@1 | 1573 | */ |
duke@1 | 1574 | @SuppressWarnings("fallthrough") |
duke@1 | 1575 | List<JCStatement> blockStatements() { |
duke@1 | 1576 | //todo: skip to anchor on error(?) |
duke@1 | 1577 | int lastErrPos = -1; |
duke@1 | 1578 | ListBuffer<JCStatement> stats = new ListBuffer<JCStatement>(); |
duke@1 | 1579 | while (true) { |
mcimadamore@1113 | 1580 | int pos = token.pos; |
mcimadamore@1113 | 1581 | switch (token.kind) { |
duke@1 | 1582 | case RBRACE: case CASE: case DEFAULT: case EOF: |
duke@1 | 1583 | return stats.toList(); |
duke@1 | 1584 | case LBRACE: case IF: case FOR: case WHILE: case DO: case TRY: |
duke@1 | 1585 | case SWITCH: case SYNCHRONIZED: case RETURN: case THROW: case BREAK: |
duke@1 | 1586 | case CONTINUE: case SEMI: case ELSE: case FINALLY: case CATCH: |
jjg@111 | 1587 | stats.append(parseStatement()); |
duke@1 | 1588 | break; |
duke@1 | 1589 | case MONKEYS_AT: |
duke@1 | 1590 | case FINAL: { |
mcimadamore@1125 | 1591 | String dc = token.comment(CommentStyle.JAVADOC); |
duke@1 | 1592 | JCModifiers mods = modifiersOpt(); |
mcimadamore@1113 | 1593 | if (token.kind == INTERFACE || |
mcimadamore@1113 | 1594 | token.kind == CLASS || |
mcimadamore@1113 | 1595 | allowEnums && token.kind == ENUM) { |
duke@1 | 1596 | stats.append(classOrInterfaceOrEnumDeclaration(mods, dc)); |
duke@1 | 1597 | } else { |
jjg@111 | 1598 | JCExpression t = parseType(); |
duke@1 | 1599 | stats.appendList(variableDeclarators(mods, t, |
duke@1 | 1600 | new ListBuffer<JCStatement>())); |
duke@1 | 1601 | // A "LocalVariableDeclarationStatement" subsumes the terminating semicolon |
mcimadamore@1113 | 1602 | storeEnd(stats.elems.last(), token.endPos); |
duke@1 | 1603 | accept(SEMI); |
duke@1 | 1604 | } |
duke@1 | 1605 | break; |
duke@1 | 1606 | } |
duke@1 | 1607 | case ABSTRACT: case STRICTFP: { |
mcimadamore@1125 | 1608 | String dc = token.comment(CommentStyle.JAVADOC); |
duke@1 | 1609 | JCModifiers mods = modifiersOpt(); |
duke@1 | 1610 | stats.append(classOrInterfaceOrEnumDeclaration(mods, dc)); |
duke@1 | 1611 | break; |
duke@1 | 1612 | } |
duke@1 | 1613 | case INTERFACE: |
duke@1 | 1614 | case CLASS: |
mcimadamore@1125 | 1615 | String dc = token.comment(CommentStyle.JAVADOC); |
mcimadamore@1113 | 1616 | stats.append(classOrInterfaceOrEnumDeclaration(modifiersOpt(), dc)); |
duke@1 | 1617 | break; |
duke@1 | 1618 | case ENUM: |
duke@1 | 1619 | case ASSERT: |
mcimadamore@1113 | 1620 | if (allowEnums && token.kind == ENUM) { |
mcimadamore@1113 | 1621 | error(token.pos, "local.enum"); |
mcimadamore@1125 | 1622 | dc = token.comment(CommentStyle.JAVADOC); |
mcimadamore@1113 | 1623 | stats.append(classOrInterfaceOrEnumDeclaration(modifiersOpt(), dc)); |
duke@1 | 1624 | break; |
mcimadamore@1113 | 1625 | } else if (allowAsserts && token.kind == ASSERT) { |
jjg@111 | 1626 | stats.append(parseStatement()); |
duke@1 | 1627 | break; |
duke@1 | 1628 | } |
duke@1 | 1629 | /* fall through to default */ |
duke@1 | 1630 | default: |
mcimadamore@1113 | 1631 | Token prevToken = token; |
duke@1 | 1632 | JCExpression t = term(EXPR | TYPE); |
jjg@1127 | 1633 | if (token.kind == COLON && t.hasTag(IDENT)) { |
mcimadamore@1113 | 1634 | nextToken(); |
jjg@111 | 1635 | JCStatement stat = parseStatement(); |
mcimadamore@1113 | 1636 | stats.append(F.at(pos).Labelled(prevToken.name(), stat)); |
duke@1 | 1637 | } else if ((lastmode & TYPE) != 0 && |
mcimadamore@1113 | 1638 | (token.kind == IDENTIFIER || |
mcimadamore@1113 | 1639 | token.kind == ASSERT || |
mcimadamore@1113 | 1640 | token.kind == ENUM)) { |
mcimadamore@1113 | 1641 | pos = token.pos; |
duke@1 | 1642 | JCModifiers mods = F.at(Position.NOPOS).Modifiers(0); |
duke@1 | 1643 | F.at(pos); |
duke@1 | 1644 | stats.appendList(variableDeclarators(mods, t, |
duke@1 | 1645 | new ListBuffer<JCStatement>())); |
duke@1 | 1646 | // A "LocalVariableDeclarationStatement" subsumes the terminating semicolon |
mcimadamore@1113 | 1647 | storeEnd(stats.elems.last(), token.endPos); |
duke@1 | 1648 | accept(SEMI); |
duke@1 | 1649 | } else { |
duke@1 | 1650 | // This Exec is an "ExpressionStatement"; it subsumes the terminating semicolon |
duke@1 | 1651 | stats.append(to(F.at(pos).Exec(checkExprStat(t)))); |
duke@1 | 1652 | accept(SEMI); |
duke@1 | 1653 | } |
duke@1 | 1654 | } |
duke@1 | 1655 | |
duke@1 | 1656 | // error recovery |
mcimadamore@1113 | 1657 | if (token.pos == lastErrPos) |
duke@1 | 1658 | return stats.toList(); |
ksrini@1138 | 1659 | if (token.pos <= endPosTable.errorEndPos) { |
duke@1 | 1660 | skip(false, true, true, true); |
mcimadamore@1113 | 1661 | lastErrPos = token.pos; |
duke@1 | 1662 | } |
duke@1 | 1663 | } |
duke@1 | 1664 | } |
duke@1 | 1665 | |
duke@1 | 1666 | /** Statement = |
duke@1 | 1667 | * Block |
duke@1 | 1668 | * | IF ParExpression Statement [ELSE Statement] |
duke@1 | 1669 | * | FOR "(" ForInitOpt ";" [Expression] ";" ForUpdateOpt ")" Statement |
duke@1 | 1670 | * | FOR "(" FormalParameter : Expression ")" Statement |
duke@1 | 1671 | * | WHILE ParExpression Statement |
duke@1 | 1672 | * | DO Statement WHILE ParExpression ";" |
duke@1 | 1673 | * | TRY Block ( Catches | [Catches] FinallyPart ) |
darcy@850 | 1674 | * | TRY "(" ResourceSpecification ";"opt ")" Block [Catches] [FinallyPart] |
duke@1 | 1675 | * | SWITCH ParExpression "{" SwitchBlockStatementGroups "}" |
duke@1 | 1676 | * | SYNCHRONIZED ParExpression Block |
duke@1 | 1677 | * | RETURN [Expression] ";" |
duke@1 | 1678 | * | THROW Expression ";" |
duke@1 | 1679 | * | BREAK [Ident] ";" |
duke@1 | 1680 | * | CONTINUE [Ident] ";" |
duke@1 | 1681 | * | ASSERT Expression [ ":" Expression ] ";" |
duke@1 | 1682 | * | ";" |
duke@1 | 1683 | * | ExpressionStatement |
duke@1 | 1684 | * | Ident ":" Statement |
duke@1 | 1685 | */ |
duke@1 | 1686 | @SuppressWarnings("fallthrough") |
jjg@111 | 1687 | public JCStatement parseStatement() { |
mcimadamore@1113 | 1688 | int pos = token.pos; |
mcimadamore@1113 | 1689 | switch (token.kind) { |
duke@1 | 1690 | case LBRACE: |
duke@1 | 1691 | return block(); |
duke@1 | 1692 | case IF: { |
mcimadamore@1113 | 1693 | nextToken(); |
duke@1 | 1694 | JCExpression cond = parExpression(); |
jjg@111 | 1695 | JCStatement thenpart = parseStatement(); |
duke@1 | 1696 | JCStatement elsepart = null; |
mcimadamore@1113 | 1697 | if (token.kind == ELSE) { |
mcimadamore@1113 | 1698 | nextToken(); |
jjg@111 | 1699 | elsepart = parseStatement(); |
duke@1 | 1700 | } |
duke@1 | 1701 | return F.at(pos).If(cond, thenpart, elsepart); |
duke@1 | 1702 | } |
duke@1 | 1703 | case FOR: { |
mcimadamore@1113 | 1704 | nextToken(); |
duke@1 | 1705 | accept(LPAREN); |
mcimadamore@1113 | 1706 | List<JCStatement> inits = token.kind == SEMI ? List.<JCStatement>nil() : forInit(); |
duke@1 | 1707 | if (inits.length() == 1 && |
jjg@1127 | 1708 | inits.head.hasTag(VARDEF) && |
duke@1 | 1709 | ((JCVariableDecl) inits.head).init == null && |
mcimadamore@1113 | 1710 | token.kind == COLON) { |
duke@1 | 1711 | checkForeach(); |
duke@1 | 1712 | JCVariableDecl var = (JCVariableDecl)inits.head; |
duke@1 | 1713 | accept(COLON); |
jjg@111 | 1714 | JCExpression expr = parseExpression(); |
duke@1 | 1715 | accept(RPAREN); |
jjg@111 | 1716 | JCStatement body = parseStatement(); |
duke@1 | 1717 | return F.at(pos).ForeachLoop(var, expr, body); |
duke@1 | 1718 | } else { |
duke@1 | 1719 | accept(SEMI); |
mcimadamore@1113 | 1720 | JCExpression cond = token.kind == SEMI ? null : parseExpression(); |
duke@1 | 1721 | accept(SEMI); |
mcimadamore@1113 | 1722 | List<JCExpressionStatement> steps = token.kind == RPAREN ? List.<JCExpressionStatement>nil() : forUpdate(); |
duke@1 | 1723 | accept(RPAREN); |
jjg@111 | 1724 | JCStatement body = parseStatement(); |
duke@1 | 1725 | return F.at(pos).ForLoop(inits, cond, steps, body); |
duke@1 | 1726 | } |
duke@1 | 1727 | } |
duke@1 | 1728 | case WHILE: { |
mcimadamore@1113 | 1729 | nextToken(); |
duke@1 | 1730 | JCExpression cond = parExpression(); |
jjg@111 | 1731 | JCStatement body = parseStatement(); |
duke@1 | 1732 | return F.at(pos).WhileLoop(cond, body); |
duke@1 | 1733 | } |
duke@1 | 1734 | case DO: { |
mcimadamore@1113 | 1735 | nextToken(); |
jjg@111 | 1736 | JCStatement body = parseStatement(); |
duke@1 | 1737 | accept(WHILE); |
duke@1 | 1738 | JCExpression cond = parExpression(); |
duke@1 | 1739 | JCDoWhileLoop t = to(F.at(pos).DoLoop(body, cond)); |
duke@1 | 1740 | accept(SEMI); |
duke@1 | 1741 | return t; |
duke@1 | 1742 | } |
duke@1 | 1743 | case TRY: { |
mcimadamore@1113 | 1744 | nextToken(); |
darcy@609 | 1745 | List<JCTree> resources = List.<JCTree>nil(); |
mcimadamore@1113 | 1746 | if (token.kind == LPAREN) { |
mcimadamore@743 | 1747 | checkTryWithResources(); |
mcimadamore@1113 | 1748 | nextToken(); |
darcy@609 | 1749 | resources = resources(); |
darcy@609 | 1750 | accept(RPAREN); |
darcy@609 | 1751 | } |
duke@1 | 1752 | JCBlock body = block(); |
duke@1 | 1753 | ListBuffer<JCCatch> catchers = new ListBuffer<JCCatch>(); |
duke@1 | 1754 | JCBlock finalizer = null; |
mcimadamore@1113 | 1755 | if (token.kind == CATCH || token.kind == FINALLY) { |
mcimadamore@1113 | 1756 | while (token.kind == CATCH) catchers.append(catchClause()); |
mcimadamore@1113 | 1757 | if (token.kind == FINALLY) { |
mcimadamore@1113 | 1758 | nextToken(); |
duke@1 | 1759 | finalizer = block(); |
duke@1 | 1760 | } |
duke@1 | 1761 | } else { |
darcy@609 | 1762 | if (allowTWR) { |
darcy@609 | 1763 | if (resources.isEmpty()) |
jjg@726 | 1764 | error(pos, "try.without.catch.finally.or.resource.decls"); |
darcy@609 | 1765 | } else |
jjg@726 | 1766 | error(pos, "try.without.catch.or.finally"); |
duke@1 | 1767 | } |
darcy@609 | 1768 | return F.at(pos).Try(resources, body, catchers.toList(), finalizer); |
duke@1 | 1769 | } |
duke@1 | 1770 | case SWITCH: { |
mcimadamore@1113 | 1771 | nextToken(); |
duke@1 | 1772 | JCExpression selector = parExpression(); |
duke@1 | 1773 | accept(LBRACE); |
duke@1 | 1774 | List<JCCase> cases = switchBlockStatementGroups(); |
duke@1 | 1775 | JCSwitch t = to(F.at(pos).Switch(selector, cases)); |
duke@1 | 1776 | accept(RBRACE); |
duke@1 | 1777 | return t; |
duke@1 | 1778 | } |
duke@1 | 1779 | case SYNCHRONIZED: { |
mcimadamore@1113 | 1780 | nextToken(); |
duke@1 | 1781 | JCExpression lock = parExpression(); |
duke@1 | 1782 | JCBlock body = block(); |
duke@1 | 1783 | return F.at(pos).Synchronized(lock, body); |
duke@1 | 1784 | } |
duke@1 | 1785 | case RETURN: { |
mcimadamore@1113 | 1786 | nextToken(); |
mcimadamore@1113 | 1787 | JCExpression result = token.kind == SEMI ? null : parseExpression(); |
duke@1 | 1788 | JCReturn t = to(F.at(pos).Return(result)); |
duke@1 | 1789 | accept(SEMI); |
duke@1 | 1790 | return t; |
duke@1 | 1791 | } |
duke@1 | 1792 | case THROW: { |
mcimadamore@1113 | 1793 | nextToken(); |
jjg@111 | 1794 | JCExpression exc = parseExpression(); |
duke@1 | 1795 | JCThrow t = to(F.at(pos).Throw(exc)); |
duke@1 | 1796 | accept(SEMI); |
duke@1 | 1797 | return t; |
duke@1 | 1798 | } |
duke@1 | 1799 | case BREAK: { |
mcimadamore@1113 | 1800 | nextToken(); |
mcimadamore@1113 | 1801 | Name label = (token.kind == IDENTIFIER || token.kind == ASSERT || token.kind == ENUM) ? ident() : null; |
duke@1 | 1802 | JCBreak t = to(F.at(pos).Break(label)); |
duke@1 | 1803 | accept(SEMI); |
duke@1 | 1804 | return t; |
duke@1 | 1805 | } |
duke@1 | 1806 | case CONTINUE: { |
mcimadamore@1113 | 1807 | nextToken(); |
mcimadamore@1113 | 1808 | Name label = (token.kind == IDENTIFIER || token.kind == ASSERT || token.kind == ENUM) ? ident() : null; |
duke@1 | 1809 | JCContinue t = to(F.at(pos).Continue(label)); |
duke@1 | 1810 | accept(SEMI); |
duke@1 | 1811 | return t; |
duke@1 | 1812 | } |
duke@1 | 1813 | case SEMI: |
mcimadamore@1113 | 1814 | nextToken(); |
duke@1 | 1815 | return toP(F.at(pos).Skip()); |
duke@1 | 1816 | case ELSE: |
duke@1 | 1817 | return toP(F.Exec(syntaxError("else.without.if"))); |
duke@1 | 1818 | case FINALLY: |
duke@1 | 1819 | return toP(F.Exec(syntaxError("finally.without.try"))); |
duke@1 | 1820 | case CATCH: |
duke@1 | 1821 | return toP(F.Exec(syntaxError("catch.without.try"))); |
duke@1 | 1822 | case ASSERT: { |
mcimadamore@1113 | 1823 | if (allowAsserts && token.kind == ASSERT) { |
mcimadamore@1113 | 1824 | nextToken(); |
jjg@111 | 1825 | JCExpression assertion = parseExpression(); |
duke@1 | 1826 | JCExpression message = null; |
mcimadamore@1113 | 1827 | if (token.kind == COLON) { |
mcimadamore@1113 | 1828 | nextToken(); |
jjg@111 | 1829 | message = parseExpression(); |
duke@1 | 1830 | } |
duke@1 | 1831 | JCAssert t = to(F.at(pos).Assert(assertion, message)); |
duke@1 | 1832 | accept(SEMI); |
duke@1 | 1833 | return t; |
duke@1 | 1834 | } |
duke@1 | 1835 | /* else fall through to default case */ |
duke@1 | 1836 | } |
duke@1 | 1837 | case ENUM: |
duke@1 | 1838 | default: |
mcimadamore@1113 | 1839 | Token prevToken = token; |
jjg@111 | 1840 | JCExpression expr = parseExpression(); |
jjg@1127 | 1841 | if (token.kind == COLON && expr.hasTag(IDENT)) { |
mcimadamore@1113 | 1842 | nextToken(); |
jjg@111 | 1843 | JCStatement stat = parseStatement(); |
mcimadamore@1113 | 1844 | return F.at(pos).Labelled(prevToken.name(), stat); |
duke@1 | 1845 | } else { |
duke@1 | 1846 | // This Exec is an "ExpressionStatement"; it subsumes the terminating semicolon |
duke@1 | 1847 | JCExpressionStatement stat = to(F.at(pos).Exec(checkExprStat(expr))); |
duke@1 | 1848 | accept(SEMI); |
duke@1 | 1849 | return stat; |
duke@1 | 1850 | } |
duke@1 | 1851 | } |
duke@1 | 1852 | } |
duke@1 | 1853 | |
duke@1 | 1854 | /** CatchClause = CATCH "(" FormalParameter ")" Block |
duke@1 | 1855 | */ |
ksrini@1074 | 1856 | protected JCCatch catchClause() { |
mcimadamore@1113 | 1857 | int pos = token.pos; |
duke@1 | 1858 | accept(CATCH); |
duke@1 | 1859 | accept(LPAREN); |
mcimadamore@550 | 1860 | JCModifiers mods = optFinal(Flags.PARAMETER); |
mcimadamore@550 | 1861 | List<JCExpression> catchTypes = catchTypes(); |
mcimadamore@550 | 1862 | JCExpression paramType = catchTypes.size() > 1 ? |
darcy@969 | 1863 | toP(F.at(catchTypes.head.getStartPosition()).TypeUnion(catchTypes)) : |
mcimadamore@550 | 1864 | catchTypes.head; |
mcimadamore@550 | 1865 | JCVariableDecl formal = variableDeclaratorId(mods, paramType); |
duke@1 | 1866 | accept(RPAREN); |
duke@1 | 1867 | JCBlock body = block(); |
duke@1 | 1868 | return F.at(pos).Catch(formal, body); |
duke@1 | 1869 | } |
duke@1 | 1870 | |
mcimadamore@550 | 1871 | List<JCExpression> catchTypes() { |
mcimadamore@550 | 1872 | ListBuffer<JCExpression> catchTypes = ListBuffer.lb(); |
mcimadamore@550 | 1873 | catchTypes.add(parseType()); |
mcimadamore@1113 | 1874 | while (token.kind == BAR) { |
mcimadamore@550 | 1875 | checkMulticatch(); |
mcimadamore@1113 | 1876 | nextToken(); |
mcimadamore@550 | 1877 | catchTypes.add(qualident()); |
mcimadamore@550 | 1878 | } |
mcimadamore@550 | 1879 | return catchTypes.toList(); |
mcimadamore@550 | 1880 | } |
mcimadamore@550 | 1881 | |
duke@1 | 1882 | /** SwitchBlockStatementGroups = { SwitchBlockStatementGroup } |
duke@1 | 1883 | * SwitchBlockStatementGroup = SwitchLabel BlockStatements |
duke@1 | 1884 | * SwitchLabel = CASE ConstantExpression ":" | DEFAULT ":" |
duke@1 | 1885 | */ |
duke@1 | 1886 | List<JCCase> switchBlockStatementGroups() { |
duke@1 | 1887 | ListBuffer<JCCase> cases = new ListBuffer<JCCase>(); |
duke@1 | 1888 | while (true) { |
mcimadamore@1113 | 1889 | int pos = token.pos; |
mcimadamore@1113 | 1890 | switch (token.kind) { |
duke@1 | 1891 | case CASE: { |
mcimadamore@1113 | 1892 | nextToken(); |
jjg@111 | 1893 | JCExpression pat = parseExpression(); |
duke@1 | 1894 | accept(COLON); |
duke@1 | 1895 | List<JCStatement> stats = blockStatements(); |
duke@1 | 1896 | JCCase c = F.at(pos).Case(pat, stats); |
duke@1 | 1897 | if (stats.isEmpty()) |
mcimadamore@1113 | 1898 | storeEnd(c, S.prevToken().endPos); |
duke@1 | 1899 | cases.append(c); |
duke@1 | 1900 | break; |
duke@1 | 1901 | } |
duke@1 | 1902 | case DEFAULT: { |
mcimadamore@1113 | 1903 | nextToken(); |
duke@1 | 1904 | accept(COLON); |
duke@1 | 1905 | List<JCStatement> stats = blockStatements(); |
duke@1 | 1906 | JCCase c = F.at(pos).Case(null, stats); |
duke@1 | 1907 | if (stats.isEmpty()) |
mcimadamore@1113 | 1908 | storeEnd(c, S.prevToken().endPos); |
duke@1 | 1909 | cases.append(c); |
duke@1 | 1910 | break; |
duke@1 | 1911 | } |
duke@1 | 1912 | case RBRACE: case EOF: |
duke@1 | 1913 | return cases.toList(); |
duke@1 | 1914 | default: |
mcimadamore@1113 | 1915 | nextToken(); // to ensure progress |
duke@1 | 1916 | syntaxError(pos, "expected3", |
mcimadamore@80 | 1917 | CASE, DEFAULT, RBRACE); |
duke@1 | 1918 | } |
duke@1 | 1919 | } |
duke@1 | 1920 | } |
duke@1 | 1921 | |
duke@1 | 1922 | /** MoreStatementExpressions = { COMMA StatementExpression } |
duke@1 | 1923 | */ |
duke@1 | 1924 | <T extends ListBuffer<? super JCExpressionStatement>> T moreStatementExpressions(int pos, |
duke@1 | 1925 | JCExpression first, |
duke@1 | 1926 | T stats) { |
duke@1 | 1927 | // This Exec is a "StatementExpression"; it subsumes no terminating token |
duke@1 | 1928 | stats.append(toP(F.at(pos).Exec(checkExprStat(first)))); |
mcimadamore@1113 | 1929 | while (token.kind == COMMA) { |
mcimadamore@1113 | 1930 | nextToken(); |
mcimadamore@1113 | 1931 | pos = token.pos; |
jjg@111 | 1932 | JCExpression t = parseExpression(); |
duke@1 | 1933 | // This Exec is a "StatementExpression"; it subsumes no terminating token |
duke@1 | 1934 | stats.append(toP(F.at(pos).Exec(checkExprStat(t)))); |
duke@1 | 1935 | } |
duke@1 | 1936 | return stats; |
duke@1 | 1937 | } |
duke@1 | 1938 | |
duke@1 | 1939 | /** ForInit = StatementExpression MoreStatementExpressions |
duke@1 | 1940 | * | { FINAL | '@' Annotation } Type VariableDeclarators |
duke@1 | 1941 | */ |
duke@1 | 1942 | List<JCStatement> forInit() { |
duke@1 | 1943 | ListBuffer<JCStatement> stats = lb(); |
mcimadamore@1113 | 1944 | int pos = token.pos; |
mcimadamore@1113 | 1945 | if (token.kind == FINAL || token.kind == MONKEYS_AT) { |
jjg@111 | 1946 | return variableDeclarators(optFinal(0), parseType(), stats).toList(); |
duke@1 | 1947 | } else { |
duke@1 | 1948 | JCExpression t = term(EXPR | TYPE); |
duke@1 | 1949 | if ((lastmode & TYPE) != 0 && |
mcimadamore@1113 | 1950 | (token.kind == IDENTIFIER || token.kind == ASSERT || token.kind == ENUM)) |
duke@1 | 1951 | return variableDeclarators(modifiersOpt(), t, stats).toList(); |
duke@1 | 1952 | else |
duke@1 | 1953 | return moreStatementExpressions(pos, t, stats).toList(); |
duke@1 | 1954 | } |
duke@1 | 1955 | } |
duke@1 | 1956 | |
duke@1 | 1957 | /** ForUpdate = StatementExpression MoreStatementExpressions |
duke@1 | 1958 | */ |
duke@1 | 1959 | List<JCExpressionStatement> forUpdate() { |
mcimadamore@1113 | 1960 | return moreStatementExpressions(token.pos, |
jjg@111 | 1961 | parseExpression(), |
duke@1 | 1962 | new ListBuffer<JCExpressionStatement>()).toList(); |
duke@1 | 1963 | } |
duke@1 | 1964 | |
duke@1 | 1965 | /** AnnotationsOpt = { '@' Annotation } |
duke@1 | 1966 | */ |
jjg@722 | 1967 | List<JCAnnotation> annotationsOpt() { |
mcimadamore@1113 | 1968 | if (token.kind != MONKEYS_AT) return List.nil(); // optimization |
duke@1 | 1969 | ListBuffer<JCAnnotation> buf = new ListBuffer<JCAnnotation>(); |
mcimadamore@1113 | 1970 | while (token.kind == MONKEYS_AT) { |
mcimadamore@1113 | 1971 | int pos = token.pos; |
mcimadamore@1113 | 1972 | nextToken(); |
jjg@722 | 1973 | buf.append(annotation(pos)); |
duke@1 | 1974 | } |
jjg@722 | 1975 | return buf.toList(); |
duke@1 | 1976 | } |
duke@1 | 1977 | |
duke@1 | 1978 | /** ModifiersOpt = { Modifier } |
duke@1 | 1979 | * Modifier = PUBLIC | PROTECTED | PRIVATE | STATIC | ABSTRACT | FINAL |
duke@1 | 1980 | * | NATIVE | SYNCHRONIZED | TRANSIENT | VOLATILE | "@" |
duke@1 | 1981 | * | "@" Annotation |
duke@1 | 1982 | */ |
duke@1 | 1983 | JCModifiers modifiersOpt() { |
duke@1 | 1984 | return modifiersOpt(null); |
duke@1 | 1985 | } |
ksrini@1074 | 1986 | protected JCModifiers modifiersOpt(JCModifiers partial) { |
jjg@482 | 1987 | long flags; |
jjg@482 | 1988 | ListBuffer<JCAnnotation> annotations = new ListBuffer<JCAnnotation>(); |
jjg@482 | 1989 | int pos; |
jjg@482 | 1990 | if (partial == null) { |
jjg@482 | 1991 | flags = 0; |
mcimadamore@1113 | 1992 | pos = token.pos; |
jjg@482 | 1993 | } else { |
jjg@482 | 1994 | flags = partial.flags; |
jjg@482 | 1995 | annotations.appendList(partial.annotations); |
jjg@482 | 1996 | pos = partial.pos; |
jjg@482 | 1997 | } |
mcimadamore@1125 | 1998 | if (token.deprecatedFlag()) { |
duke@1 | 1999 | flags |= Flags.DEPRECATED; |
duke@1 | 2000 | } |
duke@1 | 2001 | int lastPos = Position.NOPOS; |
duke@1 | 2002 | loop: |
duke@1 | 2003 | while (true) { |
duke@1 | 2004 | long flag; |
mcimadamore@1113 | 2005 | switch (token.kind) { |
duke@1 | 2006 | case PRIVATE : flag = Flags.PRIVATE; break; |
duke@1 | 2007 | case PROTECTED : flag = Flags.PROTECTED; break; |
duke@1 | 2008 | case PUBLIC : flag = Flags.PUBLIC; break; |
duke@1 | 2009 | case STATIC : flag = Flags.STATIC; break; |
duke@1 | 2010 | case TRANSIENT : flag = Flags.TRANSIENT; break; |
duke@1 | 2011 | case FINAL : flag = Flags.FINAL; break; |
duke@1 | 2012 | case ABSTRACT : flag = Flags.ABSTRACT; break; |
duke@1 | 2013 | case NATIVE : flag = Flags.NATIVE; break; |
duke@1 | 2014 | case VOLATILE : flag = Flags.VOLATILE; break; |
duke@1 | 2015 | case SYNCHRONIZED: flag = Flags.SYNCHRONIZED; break; |
duke@1 | 2016 | case STRICTFP : flag = Flags.STRICTFP; break; |
duke@1 | 2017 | case MONKEYS_AT : flag = Flags.ANNOTATION; break; |
mcimadamore@1113 | 2018 | case ERROR : flag = 0; nextToken(); break; |
duke@1 | 2019 | default: break loop; |
duke@1 | 2020 | } |
mcimadamore@1113 | 2021 | if ((flags & flag) != 0) error(token.pos, "repeated.modifier"); |
mcimadamore@1113 | 2022 | lastPos = token.pos; |
mcimadamore@1113 | 2023 | nextToken(); |
duke@1 | 2024 | if (flag == Flags.ANNOTATION) { |
duke@1 | 2025 | checkAnnotations(); |
mcimadamore@1113 | 2026 | if (token.kind != INTERFACE) { |
jjg@722 | 2027 | JCAnnotation ann = annotation(lastPos); |
jjg@482 | 2028 | // if first modifier is an annotation, set pos to annotation's. |
jjg@482 | 2029 | if (flags == 0 && annotations.isEmpty()) |
jjg@482 | 2030 | pos = ann.pos; |
jjg@482 | 2031 | annotations.append(ann); |
jjg@482 | 2032 | lastPos = ann.pos; |
duke@1 | 2033 | flag = 0; |
duke@1 | 2034 | } |
duke@1 | 2035 | } |
duke@1 | 2036 | flags |= flag; |
duke@1 | 2037 | } |
mcimadamore@1113 | 2038 | switch (token.kind) { |
duke@1 | 2039 | case ENUM: flags |= Flags.ENUM; break; |
duke@1 | 2040 | case INTERFACE: flags |= Flags.INTERFACE; break; |
duke@1 | 2041 | default: break; |
duke@1 | 2042 | } |
duke@1 | 2043 | |
duke@1 | 2044 | /* A modifiers tree with no modifier tokens or annotations |
duke@1 | 2045 | * has no text position. */ |
jjg@613 | 2046 | if ((flags & (Flags.ModifierFlags | Flags.ANNOTATION)) == 0 && annotations.isEmpty()) |
duke@1 | 2047 | pos = Position.NOPOS; |
duke@1 | 2048 | |
duke@1 | 2049 | JCModifiers mods = F.at(pos).Modifiers(flags, annotations.toList()); |
duke@1 | 2050 | if (pos != Position.NOPOS) |
mcimadamore@1113 | 2051 | storeEnd(mods, S.prevToken().endPos); |
duke@1 | 2052 | return mods; |
duke@1 | 2053 | } |
duke@1 | 2054 | |
duke@1 | 2055 | /** Annotation = "@" Qualident [ "(" AnnotationFieldValues ")" ] |
duke@1 | 2056 | * @param pos position of "@" token |
duke@1 | 2057 | */ |
jjg@722 | 2058 | JCAnnotation annotation(int pos) { |
duke@1 | 2059 | // accept(AT); // AT consumed by caller |
duke@1 | 2060 | checkAnnotations(); |
duke@1 | 2061 | JCTree ident = qualident(); |
duke@1 | 2062 | List<JCExpression> fieldValues = annotationFieldValuesOpt(); |
jjg@722 | 2063 | JCAnnotation ann = F.at(pos).Annotation(ident, fieldValues); |
mcimadamore@1113 | 2064 | storeEnd(ann, S.prevToken().endPos); |
duke@1 | 2065 | return ann; |
duke@1 | 2066 | } |
duke@1 | 2067 | |
duke@1 | 2068 | List<JCExpression> annotationFieldValuesOpt() { |
mcimadamore@1113 | 2069 | return (token.kind == LPAREN) ? annotationFieldValues() : List.<JCExpression>nil(); |
duke@1 | 2070 | } |
duke@1 | 2071 | |
duke@1 | 2072 | /** AnnotationFieldValues = "(" [ AnnotationFieldValue { "," AnnotationFieldValue } ] ")" */ |
duke@1 | 2073 | List<JCExpression> annotationFieldValues() { |
duke@1 | 2074 | accept(LPAREN); |
duke@1 | 2075 | ListBuffer<JCExpression> buf = new ListBuffer<JCExpression>(); |
mcimadamore@1113 | 2076 | if (token.kind != RPAREN) { |
duke@1 | 2077 | buf.append(annotationFieldValue()); |
mcimadamore@1113 | 2078 | while (token.kind == COMMA) { |
mcimadamore@1113 | 2079 | nextToken(); |
duke@1 | 2080 | buf.append(annotationFieldValue()); |
duke@1 | 2081 | } |
duke@1 | 2082 | } |
duke@1 | 2083 | accept(RPAREN); |
duke@1 | 2084 | return buf.toList(); |
duke@1 | 2085 | } |
duke@1 | 2086 | |
duke@1 | 2087 | /** AnnotationFieldValue = AnnotationValue |
duke@1 | 2088 | * | Identifier "=" AnnotationValue |
duke@1 | 2089 | */ |
duke@1 | 2090 | JCExpression annotationFieldValue() { |
mcimadamore@1113 | 2091 | if (token.kind == IDENTIFIER) { |
duke@1 | 2092 | mode = EXPR; |
duke@1 | 2093 | JCExpression t1 = term1(); |
jjg@1127 | 2094 | if (t1.hasTag(IDENT) && token.kind == EQ) { |
mcimadamore@1113 | 2095 | int pos = token.pos; |
duke@1 | 2096 | accept(EQ); |
jjg@482 | 2097 | JCExpression v = annotationValue(); |
jjg@482 | 2098 | return toP(F.at(pos).Assign(t1, v)); |
duke@1 | 2099 | } else { |
duke@1 | 2100 | return t1; |
duke@1 | 2101 | } |
duke@1 | 2102 | } |
duke@1 | 2103 | return annotationValue(); |
duke@1 | 2104 | } |
duke@1 | 2105 | |
duke@1 | 2106 | /* AnnotationValue = ConditionalExpression |
duke@1 | 2107 | * | Annotation |
darcy@417 | 2108 | * | "{" [ AnnotationValue { "," AnnotationValue } ] [","] "}" |
duke@1 | 2109 | */ |
duke@1 | 2110 | JCExpression annotationValue() { |
duke@1 | 2111 | int pos; |
mcimadamore@1113 | 2112 | switch (token.kind) { |
duke@1 | 2113 | case MONKEYS_AT: |
mcimadamore@1113 | 2114 | pos = token.pos; |
mcimadamore@1113 | 2115 | nextToken(); |
jjg@722 | 2116 | return annotation(pos); |
duke@1 | 2117 | case LBRACE: |
mcimadamore@1113 | 2118 | pos = token.pos; |
duke@1 | 2119 | accept(LBRACE); |
duke@1 | 2120 | ListBuffer<JCExpression> buf = new ListBuffer<JCExpression>(); |
mcimadamore@1113 | 2121 | if (token.kind != RBRACE) { |
duke@1 | 2122 | buf.append(annotationValue()); |
mcimadamore@1113 | 2123 | while (token.kind == COMMA) { |
mcimadamore@1113 | 2124 | nextToken(); |
mcimadamore@1113 | 2125 | if (token.kind == RBRACE) break; |
duke@1 | 2126 | buf.append(annotationValue()); |
duke@1 | 2127 | } |
duke@1 | 2128 | } |
duke@1 | 2129 | accept(RBRACE); |
duke@1 | 2130 | return toP(F.at(pos).NewArray(null, List.<JCExpression>nil(), buf.toList())); |
duke@1 | 2131 | default: |
duke@1 | 2132 | mode = EXPR; |
duke@1 | 2133 | return term1(); |
duke@1 | 2134 | } |
duke@1 | 2135 | } |
duke@1 | 2136 | |
duke@1 | 2137 | /** VariableDeclarators = VariableDeclarator { "," VariableDeclarator } |
duke@1 | 2138 | */ |
duke@1 | 2139 | public <T extends ListBuffer<? super JCVariableDecl>> T variableDeclarators(JCModifiers mods, |
duke@1 | 2140 | JCExpression type, |
duke@1 | 2141 | T vdefs) |
duke@1 | 2142 | { |
mcimadamore@1113 | 2143 | return variableDeclaratorsRest(token.pos, mods, type, ident(), false, null, vdefs); |
duke@1 | 2144 | } |
duke@1 | 2145 | |
duke@1 | 2146 | /** VariableDeclaratorsRest = VariableDeclaratorRest { "," VariableDeclarator } |
duke@1 | 2147 | * ConstantDeclaratorsRest = ConstantDeclaratorRest { "," ConstantDeclarator } |
duke@1 | 2148 | * |
duke@1 | 2149 | * @param reqInit Is an initializer always required? |
duke@1 | 2150 | * @param dc The documentation comment for the variable declarations, or null. |
duke@1 | 2151 | */ |
duke@1 | 2152 | <T extends ListBuffer<? super JCVariableDecl>> T variableDeclaratorsRest(int pos, |
duke@1 | 2153 | JCModifiers mods, |
duke@1 | 2154 | JCExpression type, |
duke@1 | 2155 | Name name, |
duke@1 | 2156 | boolean reqInit, |
duke@1 | 2157 | String dc, |
duke@1 | 2158 | T vdefs) |
duke@1 | 2159 | { |
duke@1 | 2160 | vdefs.append(variableDeclaratorRest(pos, mods, type, name, reqInit, dc)); |
mcimadamore@1113 | 2161 | while (token.kind == COMMA) { |
duke@1 | 2162 | // All but last of multiple declarators subsume a comma |
mcimadamore@1113 | 2163 | storeEnd((JCTree)vdefs.elems.last(), token.endPos); |
mcimadamore@1113 | 2164 | nextToken(); |
duke@1 | 2165 | vdefs.append(variableDeclarator(mods, type, reqInit, dc)); |
duke@1 | 2166 | } |
duke@1 | 2167 | return vdefs; |
duke@1 | 2168 | } |
duke@1 | 2169 | |
duke@1 | 2170 | /** VariableDeclarator = Ident VariableDeclaratorRest |
duke@1 | 2171 | * ConstantDeclarator = Ident ConstantDeclaratorRest |
duke@1 | 2172 | */ |
duke@1 | 2173 | JCVariableDecl variableDeclarator(JCModifiers mods, JCExpression type, boolean reqInit, String dc) { |
mcimadamore@1113 | 2174 | return variableDeclaratorRest(token.pos, mods, type, ident(), reqInit, dc); |
duke@1 | 2175 | } |
duke@1 | 2176 | |
duke@1 | 2177 | /** VariableDeclaratorRest = BracketsOpt ["=" VariableInitializer] |
duke@1 | 2178 | * ConstantDeclaratorRest = BracketsOpt "=" VariableInitializer |
duke@1 | 2179 | * |
duke@1 | 2180 | * @param reqInit Is an initializer always required? |
duke@1 | 2181 | * @param dc The documentation comment for the variable declarations, or null. |
duke@1 | 2182 | */ |
duke@1 | 2183 | JCVariableDecl variableDeclaratorRest(int pos, JCModifiers mods, JCExpression type, Name name, |
duke@1 | 2184 | boolean reqInit, String dc) { |
duke@1 | 2185 | type = bracketsOpt(type); |
duke@1 | 2186 | JCExpression init = null; |
mcimadamore@1113 | 2187 | if (token.kind == EQ) { |
mcimadamore@1113 | 2188 | nextToken(); |
duke@1 | 2189 | init = variableInitializer(); |
duke@1 | 2190 | } |
mcimadamore@1113 | 2191 | else if (reqInit) syntaxError(token.pos, "expected", EQ); |
duke@1 | 2192 | JCVariableDecl result = |
duke@1 | 2193 | toP(F.at(pos).VarDef(mods, name, type, init)); |
duke@1 | 2194 | attach(result, dc); |
duke@1 | 2195 | return result; |
duke@1 | 2196 | } |
duke@1 | 2197 | |
duke@1 | 2198 | /** VariableDeclaratorId = Ident BracketsOpt |
duke@1 | 2199 | */ |
duke@1 | 2200 | JCVariableDecl variableDeclaratorId(JCModifiers mods, JCExpression type) { |
mcimadamore@1113 | 2201 | int pos = token.pos; |
duke@1 | 2202 | Name name = ident(); |
mcimadamore@831 | 2203 | if ((mods.flags & Flags.VARARGS) != 0 && |
mcimadamore@1113 | 2204 | token.kind == LBRACKET) { |
mcimadamore@1113 | 2205 | log.error(token.pos, "varargs.and.old.array.syntax"); |
mcimadamore@831 | 2206 | } |
mcimadamore@831 | 2207 | type = bracketsOpt(type); |
duke@1 | 2208 | return toP(F.at(pos).VarDef(mods, name, type, null)); |
duke@1 | 2209 | } |
duke@1 | 2210 | |
darcy@609 | 2211 | /** Resources = Resource { ";" Resources } |
darcy@609 | 2212 | */ |
darcy@609 | 2213 | List<JCTree> resources() { |
darcy@609 | 2214 | ListBuffer<JCTree> defs = new ListBuffer<JCTree>(); |
darcy@609 | 2215 | defs.append(resource()); |
mcimadamore@1113 | 2216 | while (token.kind == SEMI) { |
darcy@850 | 2217 | // All but last of multiple declarators must subsume a semicolon |
mcimadamore@1113 | 2218 | storeEnd(defs.elems.last(), token.endPos); |
mcimadamore@1113 | 2219 | int semiColonPos = token.pos; |
mcimadamore@1113 | 2220 | nextToken(); |
mcimadamore@1113 | 2221 | if (token.kind == RPAREN) { // Optional trailing semicolon |
darcy@840 | 2222 | // after last resource |
darcy@840 | 2223 | break; |
darcy@840 | 2224 | } |
darcy@609 | 2225 | defs.append(resource()); |
darcy@609 | 2226 | } |
darcy@609 | 2227 | return defs.toList(); |
darcy@609 | 2228 | } |
darcy@609 | 2229 | |
darcy@840 | 2230 | /** Resource = VariableModifiersOpt Type VariableDeclaratorId = Expression |
darcy@609 | 2231 | */ |
ksrini@1074 | 2232 | protected JCTree resource() { |
ksrini@1074 | 2233 | JCModifiers optFinal = optFinal(Flags.FINAL); |
ksrini@1074 | 2234 | JCExpression type = parseType(); |
mcimadamore@1113 | 2235 | int pos = token.pos; |
ksrini@1074 | 2236 | Name ident = ident(); |
ksrini@1074 | 2237 | return variableDeclaratorRest(pos, optFinal, type, ident, true, null); |
darcy@609 | 2238 | } |
darcy@609 | 2239 | |
duke@1 | 2240 | /** CompilationUnit = [ { "@" Annotation } PACKAGE Qualident ";"] {ImportDeclaration} {TypeDeclaration} |
duke@1 | 2241 | */ |
jjg@111 | 2242 | public JCTree.JCCompilationUnit parseCompilationUnit() { |
mcimadamore@1113 | 2243 | Token firstToken = token; |
duke@1 | 2244 | JCExpression pid = null; |
duke@1 | 2245 | JCModifiers mods = null; |
mcimadamore@1113 | 2246 | boolean consumedToplevelDoc = false; |
mcimadamore@1113 | 2247 | boolean seenImport = false; |
mcimadamore@1113 | 2248 | boolean seenPackage = false; |
duke@1 | 2249 | List<JCAnnotation> packageAnnotations = List.nil(); |
mcimadamore@1113 | 2250 | if (token.kind == MONKEYS_AT) |
duke@1 | 2251 | mods = modifiersOpt(); |
duke@1 | 2252 | |
mcimadamore@1113 | 2253 | if (token.kind == PACKAGE) { |
mcimadamore@1113 | 2254 | seenPackage = true; |
duke@1 | 2255 | if (mods != null) { |
duke@1 | 2256 | checkNoMods(mods.flags); |
duke@1 | 2257 | packageAnnotations = mods.annotations; |
duke@1 | 2258 | mods = null; |
duke@1 | 2259 | } |
mcimadamore@1113 | 2260 | nextToken(); |
duke@1 | 2261 | pid = qualident(); |
duke@1 | 2262 | accept(SEMI); |
duke@1 | 2263 | } |
duke@1 | 2264 | ListBuffer<JCTree> defs = new ListBuffer<JCTree>(); |
jjg@111 | 2265 | boolean checkForImports = true; |
mcimadamore@1113 | 2266 | boolean firstTypeDecl = true; |
mcimadamore@1113 | 2267 | while (token.kind != EOF) { |
ksrini@1138 | 2268 | if (token.pos <= endPosTable.errorEndPos) { |
duke@1 | 2269 | // error recovery |
duke@1 | 2270 | skip(checkForImports, false, false, false); |
mcimadamore@1113 | 2271 | if (token.kind == EOF) |
duke@1 | 2272 | break; |
duke@1 | 2273 | } |
mcimadamore@1113 | 2274 | if (checkForImports && mods == null && token.kind == IMPORT) { |
mcimadamore@1113 | 2275 | seenImport = true; |
duke@1 | 2276 | defs.append(importDeclaration()); |
duke@1 | 2277 | } else { |
mcimadamore@1125 | 2278 | String docComment = token.comment(CommentStyle.JAVADOC); |
mcimadamore@1113 | 2279 | if (firstTypeDecl && !seenImport && !seenPackage) { |
mcimadamore@1125 | 2280 | docComment = firstToken.comment(CommentStyle.JAVADOC); |
mcimadamore@1113 | 2281 | consumedToplevelDoc = true; |
jjg@695 | 2282 | } |
mcimadamore@1113 | 2283 | JCTree def = typeDeclaration(mods, docComment); |
duke@1 | 2284 | if (def instanceof JCExpressionStatement) |
duke@1 | 2285 | def = ((JCExpressionStatement)def).expr; |
duke@1 | 2286 | defs.append(def); |
duke@1 | 2287 | if (def instanceof JCClassDecl) |
duke@1 | 2288 | checkForImports = false; |
duke@1 | 2289 | mods = null; |
mcimadamore@1113 | 2290 | firstTypeDecl = false; |
duke@1 | 2291 | } |
duke@1 | 2292 | } |
mcimadamore@1113 | 2293 | JCTree.JCCompilationUnit toplevel = F.at(firstToken.pos).TopLevel(packageAnnotations, pid, defs.toList()); |
mcimadamore@1113 | 2294 | if (!consumedToplevelDoc) |
mcimadamore@1125 | 2295 | attach(toplevel, firstToken.comment(CommentStyle.JAVADOC)); |
duke@1 | 2296 | if (defs.elems.isEmpty()) |
mcimadamore@1113 | 2297 | storeEnd(toplevel, S.prevToken().endPos); |
jjg@111 | 2298 | if (keepDocComments) |
jjg@111 | 2299 | toplevel.docComments = docComments; |
jjg@111 | 2300 | if (keepLineMap) |
jjg@111 | 2301 | toplevel.lineMap = S.getLineMap(); |
ksrini@1138 | 2302 | toplevel.endPositions = this.endPosTable; |
duke@1 | 2303 | return toplevel; |
duke@1 | 2304 | } |
duke@1 | 2305 | |
duke@1 | 2306 | /** ImportDeclaration = IMPORT [ STATIC ] Ident { "." Ident } [ "." "*" ] ";" |
duke@1 | 2307 | */ |
duke@1 | 2308 | JCTree importDeclaration() { |
mcimadamore@1113 | 2309 | int pos = token.pos; |
mcimadamore@1113 | 2310 | nextToken(); |
duke@1 | 2311 | boolean importStatic = false; |
mcimadamore@1113 | 2312 | if (token.kind == STATIC) { |
duke@1 | 2313 | checkStaticImports(); |
duke@1 | 2314 | importStatic = true; |
mcimadamore@1113 | 2315 | nextToken(); |
duke@1 | 2316 | } |
mcimadamore@1113 | 2317 | JCExpression pid = toP(F.at(token.pos).Ident(ident())); |
duke@1 | 2318 | do { |
mcimadamore@1113 | 2319 | int pos1 = token.pos; |
duke@1 | 2320 | accept(DOT); |
mcimadamore@1113 | 2321 | if (token.kind == STAR) { |
duke@1 | 2322 | pid = to(F.at(pos1).Select(pid, names.asterisk)); |
mcimadamore@1113 | 2323 | nextToken(); |
duke@1 | 2324 | break; |
duke@1 | 2325 | } else { |
duke@1 | 2326 | pid = toP(F.at(pos1).Select(pid, ident())); |
duke@1 | 2327 | } |
mcimadamore@1113 | 2328 | } while (token.kind == DOT); |
duke@1 | 2329 | accept(SEMI); |
duke@1 | 2330 | return toP(F.at(pos).Import(pid, importStatic)); |
duke@1 | 2331 | } |
duke@1 | 2332 | |
duke@1 | 2333 | /** TypeDeclaration = ClassOrInterfaceOrEnumDeclaration |
duke@1 | 2334 | * | ";" |
duke@1 | 2335 | */ |
mcimadamore@1113 | 2336 | JCTree typeDeclaration(JCModifiers mods, String docComment) { |
mcimadamore@1113 | 2337 | int pos = token.pos; |
mcimadamore@1113 | 2338 | if (mods == null && token.kind == SEMI) { |
mcimadamore@1113 | 2339 | nextToken(); |
duke@1 | 2340 | return toP(F.at(pos).Skip()); |
duke@1 | 2341 | } else { |
mcimadamore@1113 | 2342 | return classOrInterfaceOrEnumDeclaration(modifiersOpt(mods), docComment); |
duke@1 | 2343 | } |
duke@1 | 2344 | } |
duke@1 | 2345 | |
duke@1 | 2346 | /** ClassOrInterfaceOrEnumDeclaration = ModifiersOpt |
duke@1 | 2347 | * (ClassDeclaration | InterfaceDeclaration | EnumDeclaration) |
duke@1 | 2348 | * @param mods Any modifiers starting the class or interface declaration |
duke@1 | 2349 | * @param dc The documentation comment for the class, or null. |
duke@1 | 2350 | */ |
duke@1 | 2351 | JCStatement classOrInterfaceOrEnumDeclaration(JCModifiers mods, String dc) { |
mcimadamore@1113 | 2352 | if (token.kind == CLASS) { |
duke@1 | 2353 | return classDeclaration(mods, dc); |
mcimadamore@1113 | 2354 | } else if (token.kind == INTERFACE) { |
duke@1 | 2355 | return interfaceDeclaration(mods, dc); |
duke@1 | 2356 | } else if (allowEnums) { |
mcimadamore@1113 | 2357 | if (token.kind == ENUM) { |
duke@1 | 2358 | return enumDeclaration(mods, dc); |
duke@1 | 2359 | } else { |
mcimadamore@1113 | 2360 | int pos = token.pos; |
duke@1 | 2361 | List<JCTree> errs; |
mcimadamore@1113 | 2362 | if (token.kind == IDENTIFIER) { |
duke@1 | 2363 | errs = List.<JCTree>of(mods, toP(F.at(pos).Ident(ident()))); |
mcimadamore@1113 | 2364 | setErrorEndPos(token.pos); |
duke@1 | 2365 | } else { |
duke@1 | 2366 | errs = List.<JCTree>of(mods); |
duke@1 | 2367 | } |
duke@1 | 2368 | return toP(F.Exec(syntaxError(pos, errs, "expected3", |
mcimadamore@80 | 2369 | CLASS, INTERFACE, ENUM))); |
duke@1 | 2370 | } |
duke@1 | 2371 | } else { |
mcimadamore@1113 | 2372 | if (token.kind == ENUM) { |
mcimadamore@1113 | 2373 | error(token.pos, "enums.not.supported.in.source", source.name); |
duke@1 | 2374 | allowEnums = true; |
duke@1 | 2375 | return enumDeclaration(mods, dc); |
duke@1 | 2376 | } |
mcimadamore@1113 | 2377 | int pos = token.pos; |
duke@1 | 2378 | List<JCTree> errs; |
mcimadamore@1113 | 2379 | if (token.kind == IDENTIFIER) { |
duke@1 | 2380 | errs = List.<JCTree>of(mods, toP(F.at(pos).Ident(ident()))); |
mcimadamore@1113 | 2381 | setErrorEndPos(token.pos); |
duke@1 | 2382 | } else { |
duke@1 | 2383 | errs = List.<JCTree>of(mods); |
duke@1 | 2384 | } |
duke@1 | 2385 | return toP(F.Exec(syntaxError(pos, errs, "expected2", |
mcimadamore@80 | 2386 | CLASS, INTERFACE))); |
duke@1 | 2387 | } |
duke@1 | 2388 | } |
duke@1 | 2389 | |
duke@1 | 2390 | /** ClassDeclaration = CLASS Ident TypeParametersOpt [EXTENDS Type] |
duke@1 | 2391 | * [IMPLEMENTS TypeList] ClassBody |
duke@1 | 2392 | * @param mods The modifiers starting the class declaration |
duke@1 | 2393 | * @param dc The documentation comment for the class, or null. |
duke@1 | 2394 | */ |
duke@1 | 2395 | JCClassDecl classDeclaration(JCModifiers mods, String dc) { |
mcimadamore@1113 | 2396 | int pos = token.pos; |
duke@1 | 2397 | accept(CLASS); |
duke@1 | 2398 | Name name = ident(); |
duke@1 | 2399 | |
duke@1 | 2400 | List<JCTypeParameter> typarams = typeParametersOpt(); |
duke@1 | 2401 | |
jjg@904 | 2402 | JCExpression extending = null; |
mcimadamore@1113 | 2403 | if (token.kind == EXTENDS) { |
mcimadamore@1113 | 2404 | nextToken(); |
jjg@111 | 2405 | extending = parseType(); |
duke@1 | 2406 | } |
duke@1 | 2407 | List<JCExpression> implementing = List.nil(); |
mcimadamore@1113 | 2408 | if (token.kind == IMPLEMENTS) { |
mcimadamore@1113 | 2409 | nextToken(); |
duke@1 | 2410 | implementing = typeList(); |
duke@1 | 2411 | } |
duke@1 | 2412 | List<JCTree> defs = classOrInterfaceBody(name, false); |
duke@1 | 2413 | JCClassDecl result = toP(F.at(pos).ClassDef( |
duke@1 | 2414 | mods, name, typarams, extending, implementing, defs)); |
duke@1 | 2415 | attach(result, dc); |
duke@1 | 2416 | return result; |
duke@1 | 2417 | } |
duke@1 | 2418 | |
duke@1 | 2419 | /** InterfaceDeclaration = INTERFACE Ident TypeParametersOpt |
duke@1 | 2420 | * [EXTENDS TypeList] InterfaceBody |
duke@1 | 2421 | * @param mods The modifiers starting the interface declaration |
duke@1 | 2422 | * @param dc The documentation comment for the interface, or null. |
duke@1 | 2423 | */ |
duke@1 | 2424 | JCClassDecl interfaceDeclaration(JCModifiers mods, String dc) { |
mcimadamore@1113 | 2425 | int pos = token.pos; |
duke@1 | 2426 | accept(INTERFACE); |
duke@1 | 2427 | Name name = ident(); |
duke@1 | 2428 | |
duke@1 | 2429 | List<JCTypeParameter> typarams = typeParametersOpt(); |
duke@1 | 2430 | |
duke@1 | 2431 | List<JCExpression> extending = List.nil(); |
mcimadamore@1113 | 2432 | if (token.kind == EXTENDS) { |
mcimadamore@1113 | 2433 | nextToken(); |
duke@1 | 2434 | extending = typeList(); |
duke@1 | 2435 | } |
duke@1 | 2436 | List<JCTree> defs = classOrInterfaceBody(name, true); |
duke@1 | 2437 | JCClassDecl result = toP(F.at(pos).ClassDef( |
duke@1 | 2438 | mods, name, typarams, null, extending, defs)); |
duke@1 | 2439 | attach(result, dc); |
duke@1 | 2440 | return result; |
duke@1 | 2441 | } |
duke@1 | 2442 | |
duke@1 | 2443 | /** EnumDeclaration = ENUM Ident [IMPLEMENTS TypeList] EnumBody |
duke@1 | 2444 | * @param mods The modifiers starting the enum declaration |
duke@1 | 2445 | * @param dc The documentation comment for the enum, or null. |
duke@1 | 2446 | */ |
duke@1 | 2447 | JCClassDecl enumDeclaration(JCModifiers mods, String dc) { |
mcimadamore@1113 | 2448 | int pos = token.pos; |
duke@1 | 2449 | accept(ENUM); |
duke@1 | 2450 | Name name = ident(); |
duke@1 | 2451 | |
duke@1 | 2452 | List<JCExpression> implementing = List.nil(); |
mcimadamore@1113 | 2453 | if (token.kind == IMPLEMENTS) { |
mcimadamore@1113 | 2454 | nextToken(); |
duke@1 | 2455 | implementing = typeList(); |
duke@1 | 2456 | } |
duke@1 | 2457 | |
duke@1 | 2458 | List<JCTree> defs = enumBody(name); |
jjg@482 | 2459 | mods.flags |= Flags.ENUM; |
duke@1 | 2460 | JCClassDecl result = toP(F.at(pos). |
jjg@482 | 2461 | ClassDef(mods, name, List.<JCTypeParameter>nil(), |
duke@1 | 2462 | null, implementing, defs)); |
duke@1 | 2463 | attach(result, dc); |
duke@1 | 2464 | return result; |
duke@1 | 2465 | } |
duke@1 | 2466 | |
duke@1 | 2467 | /** EnumBody = "{" { EnumeratorDeclarationList } [","] |
duke@1 | 2468 | * [ ";" {ClassBodyDeclaration} ] "}" |
duke@1 | 2469 | */ |
duke@1 | 2470 | List<JCTree> enumBody(Name enumName) { |
duke@1 | 2471 | accept(LBRACE); |
duke@1 | 2472 | ListBuffer<JCTree> defs = new ListBuffer<JCTree>(); |
mcimadamore@1113 | 2473 | if (token.kind == COMMA) { |
mcimadamore@1113 | 2474 | nextToken(); |
mcimadamore@1113 | 2475 | } else if (token.kind != RBRACE && token.kind != SEMI) { |
duke@1 | 2476 | defs.append(enumeratorDeclaration(enumName)); |
mcimadamore@1113 | 2477 | while (token.kind == COMMA) { |
mcimadamore@1113 | 2478 | nextToken(); |
mcimadamore@1113 | 2479 | if (token.kind == RBRACE || token.kind == SEMI) break; |
duke@1 | 2480 | defs.append(enumeratorDeclaration(enumName)); |
duke@1 | 2481 | } |
mcimadamore@1113 | 2482 | if (token.kind != SEMI && token.kind != RBRACE) { |
mcimadamore@1113 | 2483 | defs.append(syntaxError(token.pos, "expected3", |
mcimadamore@80 | 2484 | COMMA, RBRACE, SEMI)); |
mcimadamore@1113 | 2485 | nextToken(); |
duke@1 | 2486 | } |
duke@1 | 2487 | } |
mcimadamore@1113 | 2488 | if (token.kind == SEMI) { |
mcimadamore@1113 | 2489 | nextToken(); |
mcimadamore@1113 | 2490 | while (token.kind != RBRACE && token.kind != EOF) { |
duke@1 | 2491 | defs.appendList(classOrInterfaceBodyDeclaration(enumName, |
duke@1 | 2492 | false)); |
ksrini@1138 | 2493 | if (token.pos <= endPosTable.errorEndPos) { |
duke@1 | 2494 | // error recovery |
duke@1 | 2495 | skip(false, true, true, false); |
duke@1 | 2496 | } |
duke@1 | 2497 | } |
duke@1 | 2498 | } |
duke@1 | 2499 | accept(RBRACE); |
duke@1 | 2500 | return defs.toList(); |
duke@1 | 2501 | } |
duke@1 | 2502 | |
duke@1 | 2503 | /** EnumeratorDeclaration = AnnotationsOpt [TypeArguments] IDENTIFIER [ Arguments ] [ "{" ClassBody "}" ] |
duke@1 | 2504 | */ |
duke@1 | 2505 | JCTree enumeratorDeclaration(Name enumName) { |
mcimadamore@1125 | 2506 | String dc = token.comment(CommentStyle.JAVADOC); |
duke@1 | 2507 | int flags = Flags.PUBLIC|Flags.STATIC|Flags.FINAL|Flags.ENUM; |
mcimadamore@1125 | 2508 | if (token.deprecatedFlag()) { |
duke@1 | 2509 | flags |= Flags.DEPRECATED; |
duke@1 | 2510 | } |
mcimadamore@1113 | 2511 | int pos = token.pos; |
jjg@722 | 2512 | List<JCAnnotation> annotations = annotationsOpt(); |
duke@1 | 2513 | JCModifiers mods = F.at(annotations.isEmpty() ? Position.NOPOS : pos).Modifiers(flags, annotations); |
duke@1 | 2514 | List<JCExpression> typeArgs = typeArgumentsOpt(); |
mcimadamore@1113 | 2515 | int identPos = token.pos; |
duke@1 | 2516 | Name name = ident(); |
mcimadamore@1113 | 2517 | int createPos = token.pos; |
mcimadamore@1113 | 2518 | List<JCExpression> args = (token.kind == LPAREN) |
duke@1 | 2519 | ? arguments() : List.<JCExpression>nil(); |
duke@1 | 2520 | JCClassDecl body = null; |
mcimadamore@1113 | 2521 | if (token.kind == LBRACE) { |
duke@1 | 2522 | JCModifiers mods1 = F.at(Position.NOPOS).Modifiers(Flags.ENUM | Flags.STATIC); |
duke@1 | 2523 | List<JCTree> defs = classOrInterfaceBody(names.empty, false); |
duke@1 | 2524 | body = toP(F.at(identPos).AnonymousClassDef(mods1, defs)); |
duke@1 | 2525 | } |
duke@1 | 2526 | if (args.isEmpty() && body == null) |
jjg@469 | 2527 | createPos = identPos; |
jjg@469 | 2528 | JCIdent ident = F.at(identPos).Ident(enumName); |
duke@1 | 2529 | JCNewClass create = F.at(createPos).NewClass(null, typeArgs, ident, args, body); |
jjg@469 | 2530 | if (createPos != identPos) |
mcimadamore@1113 | 2531 | storeEnd(create, S.prevToken().endPos); |
jjg@469 | 2532 | ident = F.at(identPos).Ident(enumName); |
duke@1 | 2533 | JCTree result = toP(F.at(pos).VarDef(mods, name, ident, create)); |
duke@1 | 2534 | attach(result, dc); |
duke@1 | 2535 | return result; |
duke@1 | 2536 | } |
duke@1 | 2537 | |
duke@1 | 2538 | /** TypeList = Type {"," Type} |
duke@1 | 2539 | */ |
duke@1 | 2540 | List<JCExpression> typeList() { |
duke@1 | 2541 | ListBuffer<JCExpression> ts = new ListBuffer<JCExpression>(); |
jjg@111 | 2542 | ts.append(parseType()); |
mcimadamore@1113 | 2543 | while (token.kind == COMMA) { |
mcimadamore@1113 | 2544 | nextToken(); |
jjg@111 | 2545 | ts.append(parseType()); |
duke@1 | 2546 | } |
duke@1 | 2547 | return ts.toList(); |
duke@1 | 2548 | } |
duke@1 | 2549 | |
duke@1 | 2550 | /** ClassBody = "{" {ClassBodyDeclaration} "}" |
duke@1 | 2551 | * InterfaceBody = "{" {InterfaceBodyDeclaration} "}" |
duke@1 | 2552 | */ |
duke@1 | 2553 | List<JCTree> classOrInterfaceBody(Name className, boolean isInterface) { |
duke@1 | 2554 | accept(LBRACE); |
ksrini@1138 | 2555 | if (token.pos <= endPosTable.errorEndPos) { |
duke@1 | 2556 | // error recovery |
duke@1 | 2557 | skip(false, true, false, false); |
mcimadamore@1113 | 2558 | if (token.kind == LBRACE) |
mcimadamore@1113 | 2559 | nextToken(); |
duke@1 | 2560 | } |
duke@1 | 2561 | ListBuffer<JCTree> defs = new ListBuffer<JCTree>(); |
mcimadamore@1113 | 2562 | while (token.kind != RBRACE && token.kind != EOF) { |
duke@1 | 2563 | defs.appendList(classOrInterfaceBodyDeclaration(className, isInterface)); |
ksrini@1138 | 2564 | if (token.pos <= endPosTable.errorEndPos) { |
duke@1 | 2565 | // error recovery |
duke@1 | 2566 | skip(false, true, true, false); |
duke@1 | 2567 | } |
duke@1 | 2568 | } |
duke@1 | 2569 | accept(RBRACE); |
duke@1 | 2570 | return defs.toList(); |
duke@1 | 2571 | } |
duke@1 | 2572 | |
duke@1 | 2573 | /** ClassBodyDeclaration = |
duke@1 | 2574 | * ";" |
duke@1 | 2575 | * | [STATIC] Block |
duke@1 | 2576 | * | ModifiersOpt |
duke@1 | 2577 | * ( Type Ident |
duke@1 | 2578 | * ( VariableDeclaratorsRest ";" | MethodDeclaratorRest ) |
duke@1 | 2579 | * | VOID Ident MethodDeclaratorRest |
duke@1 | 2580 | * | TypeParameters (Type | VOID) Ident MethodDeclaratorRest |
duke@1 | 2581 | * | Ident ConstructorDeclaratorRest |
duke@1 | 2582 | * | TypeParameters Ident ConstructorDeclaratorRest |
duke@1 | 2583 | * | ClassOrInterfaceOrEnumDeclaration |
duke@1 | 2584 | * ) |
duke@1 | 2585 | * InterfaceBodyDeclaration = |
duke@1 | 2586 | * ";" |
duke@1 | 2587 | * | ModifiersOpt Type Ident |
duke@1 | 2588 | * ( ConstantDeclaratorsRest | InterfaceMethodDeclaratorRest ";" ) |
duke@1 | 2589 | */ |
ksrini@1074 | 2590 | protected List<JCTree> classOrInterfaceBodyDeclaration(Name className, boolean isInterface) { |
mcimadamore@1113 | 2591 | if (token.kind == SEMI) { |
mcimadamore@1113 | 2592 | nextToken(); |
jjg@667 | 2593 | return List.<JCTree>nil(); |
duke@1 | 2594 | } else { |
mcimadamore@1125 | 2595 | String dc = token.comment(CommentStyle.JAVADOC); |
mcimadamore@1113 | 2596 | int pos = token.pos; |
duke@1 | 2597 | JCModifiers mods = modifiersOpt(); |
mcimadamore@1113 | 2598 | if (token.kind == CLASS || |
mcimadamore@1113 | 2599 | token.kind == INTERFACE || |
mcimadamore@1113 | 2600 | allowEnums && token.kind == ENUM) { |
duke@1 | 2601 | return List.<JCTree>of(classOrInterfaceOrEnumDeclaration(mods, dc)); |
mcimadamore@1113 | 2602 | } else if (token.kind == LBRACE && !isInterface && |
duke@1 | 2603 | (mods.flags & Flags.StandardFlags & ~Flags.STATIC) == 0 && |
duke@1 | 2604 | mods.annotations.isEmpty()) { |
duke@1 | 2605 | return List.<JCTree>of(block(pos, mods.flags)); |
duke@1 | 2606 | } else { |
mcimadamore@1113 | 2607 | pos = token.pos; |
duke@1 | 2608 | List<JCTypeParameter> typarams = typeParametersOpt(); |
jjg@817 | 2609 | // if there are type parameters but no modifiers, save the start |
jjg@817 | 2610 | // position of the method in the modifiers. |
jjg@817 | 2611 | if (typarams.nonEmpty() && mods.pos == Position.NOPOS) { |
jjg@817 | 2612 | mods.pos = pos; |
jjg@817 | 2613 | storeEnd(mods, pos); |
jjg@817 | 2614 | } |
mcimadamore@1113 | 2615 | Token tk = token; |
mcimadamore@1113 | 2616 | pos = token.pos; |
duke@1 | 2617 | JCExpression type; |
mcimadamore@1113 | 2618 | boolean isVoid = token.kind == VOID; |
duke@1 | 2619 | if (isVoid) { |
duke@1 | 2620 | type = to(F.at(pos).TypeIdent(TypeTags.VOID)); |
mcimadamore@1113 | 2621 | nextToken(); |
duke@1 | 2622 | } else { |
jjg@722 | 2623 | type = parseType(); |
duke@1 | 2624 | } |
jjg@1127 | 2625 | if (token.kind == LPAREN && !isInterface && type.hasTag(IDENT)) { |
mcimadamore@1113 | 2626 | if (isInterface || tk.name() != className) |
jjg@726 | 2627 | error(pos, "invalid.meth.decl.ret.type.req"); |
duke@1 | 2628 | return List.of(methodDeclaratorRest( |
duke@1 | 2629 | pos, mods, null, names.init, typarams, |
duke@1 | 2630 | isInterface, true, dc)); |
duke@1 | 2631 | } else { |
mcimadamore@1113 | 2632 | pos = token.pos; |
mcimadamore@1113 | 2633 | Name name = ident(); |
mcimadamore@1113 | 2634 | if (token.kind == LPAREN) { |
duke@1 | 2635 | return List.of(methodDeclaratorRest( |
duke@1 | 2636 | pos, mods, type, name, typarams, |
duke@1 | 2637 | isInterface, isVoid, dc)); |
duke@1 | 2638 | } else if (!isVoid && typarams.isEmpty()) { |
duke@1 | 2639 | List<JCTree> defs = |
duke@1 | 2640 | variableDeclaratorsRest(pos, mods, type, name, isInterface, dc, |
duke@1 | 2641 | new ListBuffer<JCTree>()).toList(); |
mcimadamore@1113 | 2642 | storeEnd(defs.last(), token.endPos); |
duke@1 | 2643 | accept(SEMI); |
duke@1 | 2644 | return defs; |
duke@1 | 2645 | } else { |
mcimadamore@1113 | 2646 | pos = token.pos; |
duke@1 | 2647 | List<JCTree> err = isVoid |
duke@1 | 2648 | ? List.<JCTree>of(toP(F.at(pos).MethodDef(mods, name, type, typarams, |
duke@1 | 2649 | List.<JCVariableDecl>nil(), List.<JCExpression>nil(), null, null))) |
duke@1 | 2650 | : null; |
mcimadamore@1113 | 2651 | return List.<JCTree>of(syntaxError(token.pos, err, "expected", LPAREN)); |
duke@1 | 2652 | } |
duke@1 | 2653 | } |
duke@1 | 2654 | } |
duke@1 | 2655 | } |
duke@1 | 2656 | } |
duke@1 | 2657 | |
duke@1 | 2658 | /** MethodDeclaratorRest = |
jjg@722 | 2659 | * FormalParameters BracketsOpt [Throws TypeList] ( MethodBody | [DEFAULT AnnotationValue] ";") |
duke@1 | 2660 | * VoidMethodDeclaratorRest = |
jjg@722 | 2661 | * FormalParameters [Throws TypeList] ( MethodBody | ";") |
duke@1 | 2662 | * InterfaceMethodDeclaratorRest = |
jjg@722 | 2663 | * FormalParameters BracketsOpt [THROWS TypeList] ";" |
duke@1 | 2664 | * VoidInterfaceMethodDeclaratorRest = |
jjg@722 | 2665 | * FormalParameters [THROWS TypeList] ";" |
duke@1 | 2666 | * ConstructorDeclaratorRest = |
jjg@722 | 2667 | * "(" FormalParameterListOpt ")" [THROWS TypeList] MethodBody |
duke@1 | 2668 | */ |
duke@1 | 2669 | JCTree methodDeclaratorRest(int pos, |
duke@1 | 2670 | JCModifiers mods, |
duke@1 | 2671 | JCExpression type, |
duke@1 | 2672 | Name name, |
duke@1 | 2673 | List<JCTypeParameter> typarams, |
duke@1 | 2674 | boolean isInterface, boolean isVoid, |
duke@1 | 2675 | String dc) { |
duke@1 | 2676 | List<JCVariableDecl> params = formalParameters(); |
jjg@722 | 2677 | if (!isVoid) type = bracketsOpt(type); |
duke@1 | 2678 | List<JCExpression> thrown = List.nil(); |
mcimadamore@1113 | 2679 | if (token.kind == THROWS) { |
mcimadamore@1113 | 2680 | nextToken(); |
duke@1 | 2681 | thrown = qualidentList(); |
duke@1 | 2682 | } |
duke@1 | 2683 | JCBlock body = null; |
duke@1 | 2684 | JCExpression defaultValue; |
mcimadamore@1113 | 2685 | if (token.kind == LBRACE) { |
duke@1 | 2686 | body = block(); |
duke@1 | 2687 | defaultValue = null; |
duke@1 | 2688 | } else { |
mcimadamore@1113 | 2689 | if (token.kind == DEFAULT) { |
duke@1 | 2690 | accept(DEFAULT); |
duke@1 | 2691 | defaultValue = annotationValue(); |
duke@1 | 2692 | } else { |
duke@1 | 2693 | defaultValue = null; |
duke@1 | 2694 | } |
duke@1 | 2695 | accept(SEMI); |
ksrini@1138 | 2696 | if (token.pos <= endPosTable.errorEndPos) { |
duke@1 | 2697 | // error recovery |
duke@1 | 2698 | skip(false, true, false, false); |
mcimadamore@1113 | 2699 | if (token.kind == LBRACE) { |
duke@1 | 2700 | body = block(); |
duke@1 | 2701 | } |
duke@1 | 2702 | } |
duke@1 | 2703 | } |
jjg@482 | 2704 | |
duke@1 | 2705 | JCMethodDecl result = |
duke@1 | 2706 | toP(F.at(pos).MethodDef(mods, name, type, typarams, |
jjg@722 | 2707 | params, thrown, |
duke@1 | 2708 | body, defaultValue)); |
duke@1 | 2709 | attach(result, dc); |
duke@1 | 2710 | return result; |
duke@1 | 2711 | } |
duke@1 | 2712 | |
jjg@722 | 2713 | /** QualidentList = Qualident {"," Qualident} |
duke@1 | 2714 | */ |
duke@1 | 2715 | List<JCExpression> qualidentList() { |
duke@1 | 2716 | ListBuffer<JCExpression> ts = new ListBuffer<JCExpression>(); |
jjg@722 | 2717 | ts.append(qualident()); |
mcimadamore@1113 | 2718 | while (token.kind == COMMA) { |
mcimadamore@1113 | 2719 | nextToken(); |
jjg@722 | 2720 | ts.append(qualident()); |
duke@1 | 2721 | } |
duke@1 | 2722 | return ts.toList(); |
duke@1 | 2723 | } |
duke@1 | 2724 | |
duke@1 | 2725 | /** TypeParametersOpt = ["<" TypeParameter {"," TypeParameter} ">"] |
duke@1 | 2726 | */ |
duke@1 | 2727 | List<JCTypeParameter> typeParametersOpt() { |
mcimadamore@1113 | 2728 | if (token.kind == LT) { |
duke@1 | 2729 | checkGenerics(); |
duke@1 | 2730 | ListBuffer<JCTypeParameter> typarams = new ListBuffer<JCTypeParameter>(); |
mcimadamore@1113 | 2731 | nextToken(); |
duke@1 | 2732 | typarams.append(typeParameter()); |
mcimadamore@1113 | 2733 | while (token.kind == COMMA) { |
mcimadamore@1113 | 2734 | nextToken(); |
duke@1 | 2735 | typarams.append(typeParameter()); |
duke@1 | 2736 | } |
duke@1 | 2737 | accept(GT); |
duke@1 | 2738 | return typarams.toList(); |
duke@1 | 2739 | } else { |
duke@1 | 2740 | return List.nil(); |
duke@1 | 2741 | } |
duke@1 | 2742 | } |
duke@1 | 2743 | |
jjg@722 | 2744 | /** TypeParameter = TypeVariable [TypeParameterBound] |
duke@1 | 2745 | * TypeParameterBound = EXTENDS Type {"&" Type} |
duke@1 | 2746 | * TypeVariable = Ident |
duke@1 | 2747 | */ |
duke@1 | 2748 | JCTypeParameter typeParameter() { |
mcimadamore@1113 | 2749 | int pos = token.pos; |
duke@1 | 2750 | Name name = ident(); |
duke@1 | 2751 | ListBuffer<JCExpression> bounds = new ListBuffer<JCExpression>(); |
mcimadamore@1113 | 2752 | if (token.kind == EXTENDS) { |
mcimadamore@1113 | 2753 | nextToken(); |
jjg@111 | 2754 | bounds.append(parseType()); |
mcimadamore@1113 | 2755 | while (token.kind == AMP) { |
mcimadamore@1113 | 2756 | nextToken(); |
jjg@111 | 2757 | bounds.append(parseType()); |
duke@1 | 2758 | } |
duke@1 | 2759 | } |
jjg@722 | 2760 | return toP(F.at(pos).TypeParameter(name, bounds.toList())); |
duke@1 | 2761 | } |
duke@1 | 2762 | |
duke@1 | 2763 | /** FormalParameters = "(" [ FormalParameterList ] ")" |
duke@1 | 2764 | * FormalParameterList = [ FormalParameterListNovarargs , ] LastFormalParameter |
duke@1 | 2765 | * FormalParameterListNovarargs = [ FormalParameterListNovarargs , ] FormalParameter |
duke@1 | 2766 | */ |
duke@1 | 2767 | List<JCVariableDecl> formalParameters() { |
duke@1 | 2768 | ListBuffer<JCVariableDecl> params = new ListBuffer<JCVariableDecl>(); |
duke@1 | 2769 | JCVariableDecl lastParam = null; |
duke@1 | 2770 | accept(LPAREN); |
mcimadamore@1113 | 2771 | if (token.kind != RPAREN) { |
duke@1 | 2772 | params.append(lastParam = formalParameter()); |
mcimadamore@1113 | 2773 | while ((lastParam.mods.flags & Flags.VARARGS) == 0 && token.kind == COMMA) { |
mcimadamore@1113 | 2774 | nextToken(); |
duke@1 | 2775 | params.append(lastParam = formalParameter()); |
duke@1 | 2776 | } |
duke@1 | 2777 | } |
duke@1 | 2778 | accept(RPAREN); |
duke@1 | 2779 | return params.toList(); |
duke@1 | 2780 | } |
duke@1 | 2781 | |
duke@1 | 2782 | JCModifiers optFinal(long flags) { |
duke@1 | 2783 | JCModifiers mods = modifiersOpt(); |
duke@1 | 2784 | checkNoMods(mods.flags & ~(Flags.FINAL | Flags.DEPRECATED)); |
duke@1 | 2785 | mods.flags |= flags; |
duke@1 | 2786 | return mods; |
duke@1 | 2787 | } |
duke@1 | 2788 | |
duke@1 | 2789 | /** FormalParameter = { FINAL | '@' Annotation } Type VariableDeclaratorId |
duke@1 | 2790 | * LastFormalParameter = { FINAL | '@' Annotation } Type '...' Ident | FormalParameter |
duke@1 | 2791 | */ |
ksrini@1074 | 2792 | protected JCVariableDecl formalParameter() { |
duke@1 | 2793 | JCModifiers mods = optFinal(Flags.PARAMETER); |
jjg@111 | 2794 | JCExpression type = parseType(); |
mcimadamore@1113 | 2795 | if (token.kind == ELLIPSIS) { |
duke@1 | 2796 | checkVarargs(); |
duke@1 | 2797 | mods.flags |= Flags.VARARGS; |
mcimadamore@1113 | 2798 | type = to(F.at(token.pos).TypeArray(type)); |
mcimadamore@1113 | 2799 | nextToken(); |
duke@1 | 2800 | } |
duke@1 | 2801 | return variableDeclaratorId(mods, type); |
duke@1 | 2802 | } |
duke@1 | 2803 | |
duke@1 | 2804 | /* ---------- auxiliary methods -------------- */ |
duke@1 | 2805 | |
jjg@726 | 2806 | void error(int pos, String key, Object ... args) { |
jjg@726 | 2807 | log.error(DiagnosticFlag.SYNTAX, pos, key, args); |
jjg@726 | 2808 | } |
jjg@726 | 2809 | |
ksrini@1074 | 2810 | void error(DiagnosticPosition pos, String key, Object ... args) { |
ksrini@1074 | 2811 | log.error(DiagnosticFlag.SYNTAX, pos, key, args); |
ksrini@1074 | 2812 | } |
ksrini@1074 | 2813 | |
jjg@726 | 2814 | void warning(int pos, String key, Object ... args) { |
jjg@726 | 2815 | log.warning(pos, key, args); |
jjg@726 | 2816 | } |
jjg@726 | 2817 | |
duke@1 | 2818 | /** Check that given tree is a legal expression statement. |
duke@1 | 2819 | */ |
duke@1 | 2820 | protected JCExpression checkExprStat(JCExpression t) { |
duke@1 | 2821 | switch(t.getTag()) { |
jjg@1127 | 2822 | case PREINC: case PREDEC: |
jjg@1127 | 2823 | case POSTINC: case POSTDEC: |
jjg@1127 | 2824 | case ASSIGN: |
jjg@1127 | 2825 | case BITOR_ASG: case BITXOR_ASG: case BITAND_ASG: |
jjg@1127 | 2826 | case SL_ASG: case SR_ASG: case USR_ASG: |
jjg@1127 | 2827 | case PLUS_ASG: case MINUS_ASG: |
jjg@1127 | 2828 | case MUL_ASG: case DIV_ASG: case MOD_ASG: |
jjg@1127 | 2829 | case APPLY: case NEWCLASS: |
jjg@1127 | 2830 | case ERRONEOUS: |
duke@1 | 2831 | return t; |
duke@1 | 2832 | default: |
ksrini@1074 | 2833 | JCExpression ret = F.at(t.pos).Erroneous(List.<JCTree>of(t)); |
ksrini@1074 | 2834 | error(ret, "not.stmt"); |
ksrini@1074 | 2835 | return ret; |
duke@1 | 2836 | } |
duke@1 | 2837 | } |
duke@1 | 2838 | |
duke@1 | 2839 | /** Return precedence of operator represented by token, |
duke@1 | 2840 | * -1 if token is not a binary operator. @see TreeInfo.opPrec |
duke@1 | 2841 | */ |
mcimadamore@1113 | 2842 | static int prec(TokenKind token) { |
jjg@1127 | 2843 | JCTree.Tag oc = optag(token); |
jjg@1127 | 2844 | return (oc != NO_TAG) ? TreeInfo.opPrec(oc) : -1; |
duke@1 | 2845 | } |
duke@1 | 2846 | |
jjg@516 | 2847 | /** |
jjg@516 | 2848 | * Return the lesser of two positions, making allowance for either one |
jjg@516 | 2849 | * being unset. |
jjg@516 | 2850 | */ |
jjg@516 | 2851 | static int earlier(int pos1, int pos2) { |
jjg@516 | 2852 | if (pos1 == Position.NOPOS) |
jjg@516 | 2853 | return pos2; |
jjg@516 | 2854 | if (pos2 == Position.NOPOS) |
jjg@516 | 2855 | return pos1; |
jjg@516 | 2856 | return (pos1 < pos2 ? pos1 : pos2); |
jjg@516 | 2857 | } |
jjg@516 | 2858 | |
duke@1 | 2859 | /** Return operation tag of binary operator represented by token, |
jjg@1127 | 2860 | * No_TAG if token is not a binary operator. |
duke@1 | 2861 | */ |
jjg@1127 | 2862 | static JCTree.Tag optag(TokenKind token) { |
duke@1 | 2863 | switch (token) { |
duke@1 | 2864 | case BARBAR: |
jjg@1127 | 2865 | return OR; |
duke@1 | 2866 | case AMPAMP: |
jjg@1127 | 2867 | return AND; |
duke@1 | 2868 | case BAR: |
jjg@1127 | 2869 | return BITOR; |
duke@1 | 2870 | case BAREQ: |
jjg@1127 | 2871 | return BITOR_ASG; |
duke@1 | 2872 | case CARET: |
jjg@1127 | 2873 | return BITXOR; |
duke@1 | 2874 | case CARETEQ: |
jjg@1127 | 2875 | return BITXOR_ASG; |
duke@1 | 2876 | case AMP: |
jjg@1127 | 2877 | return BITAND; |
duke@1 | 2878 | case AMPEQ: |
jjg@1127 | 2879 | return BITAND_ASG; |
duke@1 | 2880 | case EQEQ: |
jjg@1127 | 2881 | return JCTree.Tag.EQ; |
duke@1 | 2882 | case BANGEQ: |
jjg@1127 | 2883 | return NE; |
duke@1 | 2884 | case LT: |
jjg@1127 | 2885 | return JCTree.Tag.LT; |
duke@1 | 2886 | case GT: |
jjg@1127 | 2887 | return JCTree.Tag.GT; |
duke@1 | 2888 | case LTEQ: |
jjg@1127 | 2889 | return LE; |
duke@1 | 2890 | case GTEQ: |
jjg@1127 | 2891 | return GE; |
duke@1 | 2892 | case LTLT: |
jjg@1127 | 2893 | return SL; |
duke@1 | 2894 | case LTLTEQ: |
jjg@1127 | 2895 | return SL_ASG; |
duke@1 | 2896 | case GTGT: |
jjg@1127 | 2897 | return SR; |
duke@1 | 2898 | case GTGTEQ: |
jjg@1127 | 2899 | return SR_ASG; |
duke@1 | 2900 | case GTGTGT: |
jjg@1127 | 2901 | return USR; |
duke@1 | 2902 | case GTGTGTEQ: |
jjg@1127 | 2903 | return USR_ASG; |
duke@1 | 2904 | case PLUS: |
jjg@1127 | 2905 | return JCTree.Tag.PLUS; |
duke@1 | 2906 | case PLUSEQ: |
jjg@1127 | 2907 | return PLUS_ASG; |
duke@1 | 2908 | case SUB: |
jjg@1127 | 2909 | return MINUS; |
duke@1 | 2910 | case SUBEQ: |
jjg@1127 | 2911 | return MINUS_ASG; |
duke@1 | 2912 | case STAR: |
jjg@1127 | 2913 | return MUL; |
duke@1 | 2914 | case STAREQ: |
jjg@1127 | 2915 | return MUL_ASG; |
duke@1 | 2916 | case SLASH: |
jjg@1127 | 2917 | return DIV; |
duke@1 | 2918 | case SLASHEQ: |
jjg@1127 | 2919 | return DIV_ASG; |
duke@1 | 2920 | case PERCENT: |
jjg@1127 | 2921 | return MOD; |
duke@1 | 2922 | case PERCENTEQ: |
jjg@1127 | 2923 | return MOD_ASG; |
duke@1 | 2924 | case INSTANCEOF: |
jjg@1127 | 2925 | return TYPETEST; |
duke@1 | 2926 | default: |
jjg@1127 | 2927 | return NO_TAG; |
duke@1 | 2928 | } |
duke@1 | 2929 | } |
duke@1 | 2930 | |
duke@1 | 2931 | /** Return operation tag of unary operator represented by token, |
jjg@1127 | 2932 | * No_TAG if token is not a binary operator. |
duke@1 | 2933 | */ |
jjg@1127 | 2934 | static JCTree.Tag unoptag(TokenKind token) { |
duke@1 | 2935 | switch (token) { |
duke@1 | 2936 | case PLUS: |
jjg@1127 | 2937 | return POS; |
duke@1 | 2938 | case SUB: |
jjg@1127 | 2939 | return NEG; |
duke@1 | 2940 | case BANG: |
jjg@1127 | 2941 | return NOT; |
duke@1 | 2942 | case TILDE: |
jjg@1127 | 2943 | return COMPL; |
duke@1 | 2944 | case PLUSPLUS: |
jjg@1127 | 2945 | return PREINC; |
duke@1 | 2946 | case SUBSUB: |
jjg@1127 | 2947 | return PREDEC; |
duke@1 | 2948 | default: |
jjg@1127 | 2949 | return NO_TAG; |
duke@1 | 2950 | } |
duke@1 | 2951 | } |
duke@1 | 2952 | |
duke@1 | 2953 | /** Return type tag of basic type represented by token, |
duke@1 | 2954 | * -1 if token is not a basic type identifier. |
duke@1 | 2955 | */ |
mcimadamore@1113 | 2956 | static int typetag(TokenKind token) { |
duke@1 | 2957 | switch (token) { |
duke@1 | 2958 | case BYTE: |
duke@1 | 2959 | return TypeTags.BYTE; |
duke@1 | 2960 | case CHAR: |
duke@1 | 2961 | return TypeTags.CHAR; |
duke@1 | 2962 | case SHORT: |
duke@1 | 2963 | return TypeTags.SHORT; |
duke@1 | 2964 | case INT: |
duke@1 | 2965 | return TypeTags.INT; |
duke@1 | 2966 | case LONG: |
duke@1 | 2967 | return TypeTags.LONG; |
duke@1 | 2968 | case FLOAT: |
duke@1 | 2969 | return TypeTags.FLOAT; |
duke@1 | 2970 | case DOUBLE: |
duke@1 | 2971 | return TypeTags.DOUBLE; |
duke@1 | 2972 | case BOOLEAN: |
duke@1 | 2973 | return TypeTags.BOOLEAN; |
duke@1 | 2974 | default: |
duke@1 | 2975 | return -1; |
duke@1 | 2976 | } |
duke@1 | 2977 | } |
duke@1 | 2978 | |
duke@1 | 2979 | void checkGenerics() { |
duke@1 | 2980 | if (!allowGenerics) { |
mcimadamore@1113 | 2981 | error(token.pos, "generics.not.supported.in.source", source.name); |
duke@1 | 2982 | allowGenerics = true; |
duke@1 | 2983 | } |
duke@1 | 2984 | } |
duke@1 | 2985 | void checkVarargs() { |
duke@1 | 2986 | if (!allowVarargs) { |
mcimadamore@1113 | 2987 | error(token.pos, "varargs.not.supported.in.source", source.name); |
duke@1 | 2988 | allowVarargs = true; |
duke@1 | 2989 | } |
duke@1 | 2990 | } |
duke@1 | 2991 | void checkForeach() { |
duke@1 | 2992 | if (!allowForeach) { |
mcimadamore@1113 | 2993 | error(token.pos, "foreach.not.supported.in.source", source.name); |
duke@1 | 2994 | allowForeach = true; |
duke@1 | 2995 | } |
duke@1 | 2996 | } |
duke@1 | 2997 | void checkStaticImports() { |
duke@1 | 2998 | if (!allowStaticImport) { |
mcimadamore@1113 | 2999 | error(token.pos, "static.import.not.supported.in.source", source.name); |
duke@1 | 3000 | allowStaticImport = true; |
duke@1 | 3001 | } |
duke@1 | 3002 | } |
duke@1 | 3003 | void checkAnnotations() { |
duke@1 | 3004 | if (!allowAnnotations) { |
mcimadamore@1113 | 3005 | error(token.pos, "annotations.not.supported.in.source", source.name); |
duke@1 | 3006 | allowAnnotations = true; |
duke@1 | 3007 | } |
duke@1 | 3008 | } |
mcimadamore@537 | 3009 | void checkDiamond() { |
mcimadamore@537 | 3010 | if (!allowDiamond) { |
mcimadamore@1113 | 3011 | error(token.pos, "diamond.not.supported.in.source", source.name); |
mcimadamore@537 | 3012 | allowDiamond = true; |
mcimadamore@537 | 3013 | } |
mcimadamore@537 | 3014 | } |
mcimadamore@550 | 3015 | void checkMulticatch() { |
mcimadamore@550 | 3016 | if (!allowMulticatch) { |
mcimadamore@1113 | 3017 | error(token.pos, "multicatch.not.supported.in.source", source.name); |
mcimadamore@550 | 3018 | allowMulticatch = true; |
darcy@609 | 3019 | } |
darcy@609 | 3020 | } |
mcimadamore@743 | 3021 | void checkTryWithResources() { |
darcy@609 | 3022 | if (!allowTWR) { |
mcimadamore@1113 | 3023 | error(token.pos, "try.with.resources.not.supported.in.source", source.name); |
darcy@609 | 3024 | allowTWR = true; |
darcy@609 | 3025 | } |
mcimadamore@550 | 3026 | } |
ksrini@1138 | 3027 | |
ksrini@1138 | 3028 | /* |
ksrini@1138 | 3029 | * a functional source tree and end position mappings |
ksrini@1138 | 3030 | */ |
ksrini@1138 | 3031 | protected class SimpleEndPosTable extends AbstractEndPosTable { |
ksrini@1138 | 3032 | |
ksrini@1138 | 3033 | private final Map<JCTree, Integer> endPosMap; |
ksrini@1138 | 3034 | |
ksrini@1138 | 3035 | SimpleEndPosTable() { |
ksrini@1138 | 3036 | endPosMap = new HashMap<JCTree, Integer>(); |
ksrini@1138 | 3037 | } |
ksrini@1138 | 3038 | |
ksrini@1138 | 3039 | protected void storeEnd(JCTree tree, int endpos) { |
ksrini@1138 | 3040 | endPosMap.put(tree, errorEndPos > endpos ? errorEndPos : endpos); |
ksrini@1138 | 3041 | } |
ksrini@1138 | 3042 | |
ksrini@1138 | 3043 | protected <T extends JCTree> T to(T t) { |
ksrini@1138 | 3044 | storeEnd(t, token.endPos); |
ksrini@1138 | 3045 | return t; |
ksrini@1138 | 3046 | } |
ksrini@1138 | 3047 | |
ksrini@1138 | 3048 | protected <T extends JCTree> T toP(T t) { |
ksrini@1138 | 3049 | storeEnd(t, S.prevToken().endPos); |
ksrini@1138 | 3050 | return t; |
ksrini@1138 | 3051 | } |
ksrini@1138 | 3052 | |
ksrini@1138 | 3053 | public int getEndPos(JCTree tree) { |
ksrini@1138 | 3054 | Integer value = endPosMap.get(tree); |
ksrini@1138 | 3055 | return (value == null) ? Position.NOPOS : value; |
ksrini@1138 | 3056 | } |
ksrini@1138 | 3057 | |
ksrini@1138 | 3058 | public int replaceTree(JCTree oldTree, JCTree newTree) { |
ksrini@1138 | 3059 | Integer pos = endPosMap.remove(oldTree); |
ksrini@1138 | 3060 | if (pos != null) { |
ksrini@1138 | 3061 | endPosMap.put(newTree, pos); |
ksrini@1138 | 3062 | return pos; |
ksrini@1138 | 3063 | } |
ksrini@1138 | 3064 | return Position.NOPOS; |
ksrini@1138 | 3065 | } |
ksrini@1138 | 3066 | } |
ksrini@1138 | 3067 | |
ksrini@1138 | 3068 | /* |
ksrini@1138 | 3069 | * a default skeletal implementation without any mapping overhead. |
ksrini@1138 | 3070 | */ |
ksrini@1138 | 3071 | protected class EmptyEndPosTable extends AbstractEndPosTable { |
ksrini@1138 | 3072 | |
ksrini@1138 | 3073 | protected void storeEnd(JCTree tree, int endpos) { /* empty */ } |
ksrini@1138 | 3074 | |
ksrini@1138 | 3075 | protected <T extends JCTree> T to(T t) { |
ksrini@1138 | 3076 | return t; |
ksrini@1138 | 3077 | } |
ksrini@1138 | 3078 | |
ksrini@1138 | 3079 | protected <T extends JCTree> T toP(T t) { |
ksrini@1138 | 3080 | return t; |
ksrini@1138 | 3081 | } |
ksrini@1138 | 3082 | |
ksrini@1138 | 3083 | public int getEndPos(JCTree tree) { |
ksrini@1138 | 3084 | return Position.NOPOS; |
ksrini@1138 | 3085 | } |
ksrini@1138 | 3086 | |
ksrini@1138 | 3087 | public int replaceTree(JCTree oldTree, JCTree newTree) { |
ksrini@1138 | 3088 | return Position.NOPOS; |
ksrini@1138 | 3089 | } |
ksrini@1138 | 3090 | |
ksrini@1138 | 3091 | } |
ksrini@1138 | 3092 | |
ksrini@1138 | 3093 | protected abstract class AbstractEndPosTable implements EndPosTable { |
ksrini@1138 | 3094 | |
ksrini@1138 | 3095 | /** |
ksrini@1138 | 3096 | * Store the last error position. |
ksrini@1138 | 3097 | */ |
ksrini@1138 | 3098 | protected int errorEndPos; |
ksrini@1138 | 3099 | |
ksrini@1138 | 3100 | /** |
ksrini@1138 | 3101 | * Store ending position for a tree, the value of which is the greater |
ksrini@1138 | 3102 | * of last error position and the given ending position. |
ksrini@1138 | 3103 | * @param tree The tree. |
ksrini@1138 | 3104 | * @param endpos The ending position to associate with the tree. |
ksrini@1138 | 3105 | */ |
ksrini@1138 | 3106 | protected abstract void storeEnd(JCTree tree, int endpos); |
ksrini@1138 | 3107 | |
ksrini@1138 | 3108 | /** |
ksrini@1138 | 3109 | * Store current token's ending position for a tree, the value of which |
ksrini@1138 | 3110 | * will be the greater of last error position and the ending position of |
ksrini@1138 | 3111 | * the current token. |
ksrini@1138 | 3112 | * @param t The tree. |
ksrini@1138 | 3113 | */ |
ksrini@1138 | 3114 | protected abstract <T extends JCTree> T to(T t); |
ksrini@1138 | 3115 | |
ksrini@1138 | 3116 | /** |
ksrini@1138 | 3117 | * Store current token's ending position for a tree, the value of which |
ksrini@1138 | 3118 | * will be the greater of last error position and the ending position of |
ksrini@1138 | 3119 | * the previous token. |
ksrini@1138 | 3120 | * @param t The tree. |
ksrini@1138 | 3121 | */ |
ksrini@1138 | 3122 | protected abstract <T extends JCTree> T toP(T t); |
ksrini@1138 | 3123 | |
ksrini@1138 | 3124 | /** |
ksrini@1138 | 3125 | * Set the error position during the parsing phases, the value of which |
ksrini@1138 | 3126 | * will be set only if it is greater than the last stored error position. |
ksrini@1138 | 3127 | * @param errPos The error position |
ksrini@1138 | 3128 | */ |
ksrini@1138 | 3129 | protected void setErrorEndPos(int errPos) { |
ksrini@1138 | 3130 | if (errPos > errorEndPos) { |
ksrini@1138 | 3131 | errorEndPos = errPos; |
ksrini@1138 | 3132 | } |
ksrini@1138 | 3133 | } |
ksrini@1138 | 3134 | } |
duke@1 | 3135 | } |