Wed, 20 May 2009 13:36:23 -0700
6827026: Change javac source and target default to 7
Reviewed-by: darcy, ohair
duke@1 | 1 | /* |
xdono@229 | 2 | * Copyright 1999-2009 Sun Microsystems, Inc. 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 |
duke@1 | 7 | * published by the Free Software Foundation. Sun designates this |
duke@1 | 8 | * particular file as subject to the "Classpath" exception as provided |
duke@1 | 9 | * by Sun 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 | * |
duke@1 | 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
duke@1 | 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
duke@1 | 23 | * have any 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 | |
duke@1 | 30 | import com.sun.tools.javac.tree.*; |
duke@1 | 31 | import com.sun.tools.javac.code.*; |
duke@1 | 32 | import com.sun.tools.javac.util.*; |
duke@1 | 33 | import com.sun.tools.javac.util.List; |
duke@1 | 34 | import static com.sun.tools.javac.util.ListBuffer.lb; |
duke@1 | 35 | |
duke@1 | 36 | import com.sun.tools.javac.tree.JCTree.*; |
duke@1 | 37 | |
duke@1 | 38 | import static com.sun.tools.javac.parser.Token.*; |
duke@1 | 39 | |
duke@1 | 40 | /** The parser maps a token sequence into an abstract syntax |
duke@1 | 41 | * tree. It operates by recursive descent, with code derived |
duke@1 | 42 | * systematically from an LL(1) grammar. For efficiency reasons, an |
duke@1 | 43 | * operator precedence scheme is used for parsing binary operation |
duke@1 | 44 | * expressions. |
duke@1 | 45 | * |
duke@1 | 46 | * <p><b>This is NOT part of any API supported by Sun Microsystems. If |
duke@1 | 47 | * you write code that depends on this, you do so at your own risk. |
duke@1 | 48 | * This code and its internal interfaces are subject to change or |
duke@1 | 49 | * deletion without notice.</b> |
duke@1 | 50 | */ |
jjg@111 | 51 | public class JavacParser implements Parser { |
duke@1 | 52 | |
duke@1 | 53 | /** The number of precedence levels of infix operators. |
duke@1 | 54 | */ |
duke@1 | 55 | private static final int infixPrecedenceLevels = 10; |
duke@1 | 56 | |
duke@1 | 57 | /** The scanner used for lexical analysis. |
duke@1 | 58 | */ |
duke@1 | 59 | private Lexer S; |
duke@1 | 60 | |
duke@1 | 61 | /** The factory to be used for abstract syntax tree construction. |
duke@1 | 62 | */ |
duke@1 | 63 | protected TreeMaker F; |
duke@1 | 64 | |
duke@1 | 65 | /** The log to be used for error diagnostics. |
duke@1 | 66 | */ |
duke@1 | 67 | private Log log; |
duke@1 | 68 | |
duke@1 | 69 | /** The keyword table. */ |
duke@1 | 70 | private Keywords keywords; |
duke@1 | 71 | |
duke@1 | 72 | /** The Source language setting. */ |
duke@1 | 73 | private Source source; |
duke@1 | 74 | |
duke@1 | 75 | /** The name table. */ |
jjg@113 | 76 | private Names names; |
duke@1 | 77 | |
duke@1 | 78 | /** Construct a parser from a given scanner, tree factory and log. |
duke@1 | 79 | */ |
jjg@111 | 80 | protected JavacParser(ParserFactory fac, |
duke@1 | 81 | Lexer S, |
jjg@111 | 82 | boolean keepDocComments, |
jjg@111 | 83 | boolean keepLineMap) { |
duke@1 | 84 | this.S = S; |
duke@1 | 85 | S.nextToken(); // prime the pump |
duke@1 | 86 | this.F = fac.F; |
duke@1 | 87 | this.log = fac.log; |
duke@1 | 88 | this.names = fac.names; |
duke@1 | 89 | this.keywords = fac.keywords; |
duke@1 | 90 | this.source = fac.source; |
duke@1 | 91 | this.allowGenerics = source.allowGenerics(); |
duke@1 | 92 | this.allowVarargs = source.allowVarargs(); |
duke@1 | 93 | this.allowAsserts = source.allowAsserts(); |
duke@1 | 94 | this.allowEnums = source.allowEnums(); |
duke@1 | 95 | this.allowForeach = source.allowForeach(); |
duke@1 | 96 | this.allowStaticImport = source.allowStaticImport(); |
duke@1 | 97 | this.allowAnnotations = source.allowAnnotations(); |
duke@1 | 98 | this.keepDocComments = keepDocComments; |
jjg@111 | 99 | if (keepDocComments) |
jjg@111 | 100 | docComments = new HashMap<JCTree,String>(); |
jjg@111 | 101 | this.keepLineMap = keepLineMap; |
duke@1 | 102 | this.errorTree = F.Erroneous(); |
duke@1 | 103 | } |
duke@1 | 104 | |
duke@1 | 105 | /** Switch: Should generics be recognized? |
duke@1 | 106 | */ |
duke@1 | 107 | boolean allowGenerics; |
duke@1 | 108 | |
duke@1 | 109 | /** Switch: Should varargs be recognized? |
duke@1 | 110 | */ |
duke@1 | 111 | boolean allowVarargs; |
duke@1 | 112 | |
duke@1 | 113 | /** Switch: should we recognize assert statements, or just give a warning? |
duke@1 | 114 | */ |
duke@1 | 115 | boolean allowAsserts; |
duke@1 | 116 | |
duke@1 | 117 | /** Switch: should we recognize enums, or just give a warning? |
duke@1 | 118 | */ |
duke@1 | 119 | boolean allowEnums; |
duke@1 | 120 | |
duke@1 | 121 | /** Switch: should we recognize foreach? |
duke@1 | 122 | */ |
duke@1 | 123 | boolean allowForeach; |
duke@1 | 124 | |
duke@1 | 125 | /** Switch: should we recognize foreach? |
duke@1 | 126 | */ |
duke@1 | 127 | boolean allowStaticImport; |
duke@1 | 128 | |
duke@1 | 129 | /** Switch: should we recognize annotations? |
duke@1 | 130 | */ |
duke@1 | 131 | boolean allowAnnotations; |
duke@1 | 132 | |
duke@1 | 133 | /** Switch: should we keep docComments? |
duke@1 | 134 | */ |
duke@1 | 135 | boolean keepDocComments; |
duke@1 | 136 | |
jjg@111 | 137 | /** Switch: should we keep line table? |
jjg@111 | 138 | */ |
jjg@111 | 139 | boolean keepLineMap; |
jjg@111 | 140 | |
duke@1 | 141 | /** When terms are parsed, the mode determines which is expected: |
duke@1 | 142 | * mode = EXPR : an expression |
duke@1 | 143 | * mode = TYPE : a type |
duke@1 | 144 | * mode = NOPARAMS : no parameters allowed for type |
duke@1 | 145 | * mode = TYPEARG : type argument |
duke@1 | 146 | */ |
duke@1 | 147 | static final int EXPR = 1; |
duke@1 | 148 | static final int TYPE = 2; |
duke@1 | 149 | static final int NOPARAMS = 4; |
duke@1 | 150 | static final int TYPEARG = 8; |
duke@1 | 151 | |
duke@1 | 152 | /** The current mode. |
duke@1 | 153 | */ |
duke@1 | 154 | private int mode = 0; |
duke@1 | 155 | |
duke@1 | 156 | /** The mode of the term that was parsed last. |
duke@1 | 157 | */ |
duke@1 | 158 | private int lastmode = 0; |
duke@1 | 159 | |
duke@1 | 160 | /* ---------- error recovery -------------- */ |
duke@1 | 161 | |
duke@1 | 162 | private JCErroneous errorTree; |
duke@1 | 163 | |
duke@1 | 164 | /** Skip forward until a suitable stop token is found. |
duke@1 | 165 | */ |
duke@1 | 166 | private void skip(boolean stopAtImport, boolean stopAtMemberDecl, boolean stopAtIdentifier, boolean stopAtStatement) { |
duke@1 | 167 | while (true) { |
duke@1 | 168 | switch (S.token()) { |
duke@1 | 169 | case SEMI: |
duke@1 | 170 | S.nextToken(); |
duke@1 | 171 | return; |
duke@1 | 172 | case PUBLIC: |
duke@1 | 173 | case FINAL: |
duke@1 | 174 | case ABSTRACT: |
duke@1 | 175 | case MONKEYS_AT: |
duke@1 | 176 | case EOF: |
duke@1 | 177 | case CLASS: |
duke@1 | 178 | case INTERFACE: |
duke@1 | 179 | case ENUM: |
duke@1 | 180 | return; |
duke@1 | 181 | case IMPORT: |
duke@1 | 182 | if (stopAtImport) |
duke@1 | 183 | return; |
duke@1 | 184 | break; |
duke@1 | 185 | case LBRACE: |
duke@1 | 186 | case RBRACE: |
duke@1 | 187 | case PRIVATE: |
duke@1 | 188 | case PROTECTED: |
duke@1 | 189 | case STATIC: |
duke@1 | 190 | case TRANSIENT: |
duke@1 | 191 | case NATIVE: |
duke@1 | 192 | case VOLATILE: |
duke@1 | 193 | case SYNCHRONIZED: |
duke@1 | 194 | case STRICTFP: |
duke@1 | 195 | case LT: |
duke@1 | 196 | case BYTE: |
duke@1 | 197 | case SHORT: |
duke@1 | 198 | case CHAR: |
duke@1 | 199 | case INT: |
duke@1 | 200 | case LONG: |
duke@1 | 201 | case FLOAT: |
duke@1 | 202 | case DOUBLE: |
duke@1 | 203 | case BOOLEAN: |
duke@1 | 204 | case VOID: |
duke@1 | 205 | if (stopAtMemberDecl) |
duke@1 | 206 | return; |
duke@1 | 207 | break; |
duke@1 | 208 | case IDENTIFIER: |
duke@1 | 209 | if (stopAtIdentifier) |
duke@1 | 210 | return; |
duke@1 | 211 | break; |
duke@1 | 212 | case CASE: |
duke@1 | 213 | case DEFAULT: |
duke@1 | 214 | case IF: |
duke@1 | 215 | case FOR: |
duke@1 | 216 | case WHILE: |
duke@1 | 217 | case DO: |
duke@1 | 218 | case TRY: |
duke@1 | 219 | case SWITCH: |
duke@1 | 220 | case RETURN: |
duke@1 | 221 | case THROW: |
duke@1 | 222 | case BREAK: |
duke@1 | 223 | case CONTINUE: |
duke@1 | 224 | case ELSE: |
duke@1 | 225 | case FINALLY: |
duke@1 | 226 | case CATCH: |
duke@1 | 227 | if (stopAtStatement) |
duke@1 | 228 | return; |
duke@1 | 229 | break; |
duke@1 | 230 | } |
duke@1 | 231 | S.nextToken(); |
duke@1 | 232 | } |
duke@1 | 233 | } |
duke@1 | 234 | |
mcimadamore@80 | 235 | private JCErroneous syntaxError(int pos, String key, Token... args) { |
mcimadamore@80 | 236 | return syntaxError(pos, null, key, args); |
duke@1 | 237 | } |
duke@1 | 238 | |
mcimadamore@80 | 239 | private JCErroneous syntaxError(int pos, List<JCTree> errs, String key, Token... args) { |
duke@1 | 240 | setErrorEndPos(pos); |
mcimadamore@80 | 241 | reportSyntaxError(pos, key, (Object[])args); |
duke@1 | 242 | return toP(F.at(pos).Erroneous(errs)); |
duke@1 | 243 | } |
duke@1 | 244 | |
duke@1 | 245 | private int errorPos = Position.NOPOS; |
duke@1 | 246 | /** |
duke@1 | 247 | * Report a syntax error at given position using the given |
duke@1 | 248 | * argument unless one was already reported at the same position. |
duke@1 | 249 | */ |
mcimadamore@80 | 250 | private void reportSyntaxError(int pos, String key, Object... args) { |
duke@1 | 251 | if (pos > S.errPos() || pos == Position.NOPOS) { |
duke@1 | 252 | if (S.token() == EOF) |
duke@1 | 253 | log.error(pos, "premature.eof"); |
duke@1 | 254 | else |
mcimadamore@80 | 255 | log.error(pos, key, args); |
duke@1 | 256 | } |
duke@1 | 257 | S.errPos(pos); |
duke@1 | 258 | if (S.pos() == errorPos) |
duke@1 | 259 | S.nextToken(); // guarantee progress |
duke@1 | 260 | errorPos = S.pos(); |
duke@1 | 261 | } |
duke@1 | 262 | |
duke@1 | 263 | |
duke@1 | 264 | /** Generate a syntax error at current position unless one was already |
duke@1 | 265 | * reported at the same position. |
duke@1 | 266 | */ |
duke@1 | 267 | private JCErroneous syntaxError(String key) { |
duke@1 | 268 | return syntaxError(S.pos(), key); |
duke@1 | 269 | } |
duke@1 | 270 | |
duke@1 | 271 | /** Generate a syntax error at current position unless one was |
duke@1 | 272 | * already reported at the same position. |
duke@1 | 273 | */ |
mcimadamore@80 | 274 | private JCErroneous syntaxError(String key, Token arg) { |
duke@1 | 275 | return syntaxError(S.pos(), key, arg); |
duke@1 | 276 | } |
duke@1 | 277 | |
duke@1 | 278 | /** If next input token matches given token, skip it, otherwise report |
duke@1 | 279 | * an error. |
duke@1 | 280 | */ |
duke@1 | 281 | public void accept(Token token) { |
duke@1 | 282 | if (S.token() == token) { |
duke@1 | 283 | S.nextToken(); |
duke@1 | 284 | } else { |
duke@1 | 285 | setErrorEndPos(S.pos()); |
mcimadamore@80 | 286 | reportSyntaxError(S.prevEndPos(), "expected", token); |
duke@1 | 287 | } |
duke@1 | 288 | } |
duke@1 | 289 | |
duke@1 | 290 | /** Report an illegal start of expression/type error at given position. |
duke@1 | 291 | */ |
duke@1 | 292 | JCExpression illegal(int pos) { |
duke@1 | 293 | setErrorEndPos(S.pos()); |
duke@1 | 294 | if ((mode & EXPR) != 0) |
duke@1 | 295 | return syntaxError(pos, "illegal.start.of.expr"); |
duke@1 | 296 | else |
duke@1 | 297 | return syntaxError(pos, "illegal.start.of.type"); |
duke@1 | 298 | |
duke@1 | 299 | } |
duke@1 | 300 | |
duke@1 | 301 | /** Report an illegal start of expression/type error at current position. |
duke@1 | 302 | */ |
duke@1 | 303 | JCExpression illegal() { |
duke@1 | 304 | return illegal(S.pos()); |
duke@1 | 305 | } |
duke@1 | 306 | |
duke@1 | 307 | /** Diagnose a modifier flag from the set, if any. */ |
duke@1 | 308 | void checkNoMods(long mods) { |
duke@1 | 309 | if (mods != 0) { |
duke@1 | 310 | long lowestMod = mods & -mods; |
duke@1 | 311 | log.error(S.pos(), "mod.not.allowed.here", |
mcimadamore@80 | 312 | Flags.asFlagSet(lowestMod)); |
duke@1 | 313 | } |
duke@1 | 314 | } |
duke@1 | 315 | |
duke@1 | 316 | /* ---------- doc comments --------- */ |
duke@1 | 317 | |
duke@1 | 318 | /** A hashtable to store all documentation comments |
duke@1 | 319 | * indexed by the tree nodes they refer to. |
duke@1 | 320 | * defined only if option flag keepDocComment is set. |
duke@1 | 321 | */ |
duke@1 | 322 | Map<JCTree, String> docComments; |
duke@1 | 323 | |
duke@1 | 324 | /** Make an entry into docComments hashtable, |
duke@1 | 325 | * provided flag keepDocComments is set and given doc comment is non-null. |
duke@1 | 326 | * @param tree The tree to be used as index in the hashtable |
duke@1 | 327 | * @param dc The doc comment to associate with the tree, or null. |
duke@1 | 328 | */ |
duke@1 | 329 | void attach(JCTree tree, String dc) { |
duke@1 | 330 | if (keepDocComments && dc != null) { |
duke@1 | 331 | // System.out.println("doc comment = ");System.out.println(dc);//DEBUG |
duke@1 | 332 | docComments.put(tree, dc); |
duke@1 | 333 | } |
duke@1 | 334 | } |
duke@1 | 335 | |
duke@1 | 336 | /* -------- source positions ------- */ |
duke@1 | 337 | |
duke@1 | 338 | private int errorEndPos = -1; |
duke@1 | 339 | |
duke@1 | 340 | private void setErrorEndPos(int errPos) { |
duke@1 | 341 | if (errPos > errorEndPos) |
duke@1 | 342 | errorEndPos = errPos; |
duke@1 | 343 | } |
duke@1 | 344 | |
duke@1 | 345 | protected int getErrorEndPos() { |
duke@1 | 346 | return errorEndPos; |
duke@1 | 347 | } |
duke@1 | 348 | |
duke@1 | 349 | /** |
duke@1 | 350 | * Store ending position for a tree. |
duke@1 | 351 | * @param tree The tree. |
duke@1 | 352 | * @param endpos The ending position to associate with the tree. |
duke@1 | 353 | */ |
duke@1 | 354 | protected void storeEnd(JCTree tree, int endpos) {} |
duke@1 | 355 | |
duke@1 | 356 | /** |
duke@1 | 357 | * Store ending position for a tree. The ending position should |
duke@1 | 358 | * be the ending position of the current token. |
duke@1 | 359 | * @param t The tree. |
duke@1 | 360 | */ |
duke@1 | 361 | protected <T extends JCTree> T to(T t) { return t; } |
duke@1 | 362 | |
duke@1 | 363 | /** |
duke@1 | 364 | * Store ending position for a tree. The ending position should |
duke@1 | 365 | * be greater of the ending position of the previous token and errorEndPos. |
duke@1 | 366 | * @param t The tree. |
duke@1 | 367 | */ |
duke@1 | 368 | protected <T extends JCTree> T toP(T t) { return t; } |
duke@1 | 369 | |
duke@1 | 370 | /** Get the start position for a tree node. The start position is |
duke@1 | 371 | * defined to be the position of the first character of the first |
duke@1 | 372 | * token of the node's source text. |
duke@1 | 373 | * @param tree The tree node |
duke@1 | 374 | */ |
duke@1 | 375 | public int getStartPos(JCTree tree) { |
duke@1 | 376 | return TreeInfo.getStartPos(tree); |
duke@1 | 377 | } |
duke@1 | 378 | |
duke@1 | 379 | /** |
duke@1 | 380 | * Get the end position for a tree node. The end position is |
duke@1 | 381 | * defined to be the position of the last character of the last |
duke@1 | 382 | * token of the node's source text. Returns Position.NOPOS if end |
duke@1 | 383 | * positions are not generated or the position is otherwise not |
duke@1 | 384 | * found. |
duke@1 | 385 | * @param tree The tree node |
duke@1 | 386 | */ |
duke@1 | 387 | public int getEndPos(JCTree tree) { |
duke@1 | 388 | return Position.NOPOS; |
duke@1 | 389 | } |
duke@1 | 390 | |
duke@1 | 391 | |
duke@1 | 392 | |
duke@1 | 393 | /* ---------- parsing -------------- */ |
duke@1 | 394 | |
duke@1 | 395 | /** |
duke@1 | 396 | * Ident = IDENTIFIER |
duke@1 | 397 | */ |
duke@1 | 398 | Name ident() { |
duke@1 | 399 | if (S.token() == IDENTIFIER) { |
duke@1 | 400 | Name name = S.name(); |
duke@1 | 401 | S.nextToken(); |
duke@1 | 402 | return name; |
duke@1 | 403 | } else if (S.token() == ASSERT) { |
duke@1 | 404 | if (allowAsserts) { |
duke@1 | 405 | log.error(S.pos(), "assert.as.identifier"); |
duke@1 | 406 | S.nextToken(); |
duke@1 | 407 | return names.error; |
duke@1 | 408 | } else { |
duke@1 | 409 | log.warning(S.pos(), "assert.as.identifier"); |
duke@1 | 410 | Name name = S.name(); |
duke@1 | 411 | S.nextToken(); |
duke@1 | 412 | return name; |
duke@1 | 413 | } |
duke@1 | 414 | } else if (S.token() == ENUM) { |
duke@1 | 415 | if (allowEnums) { |
duke@1 | 416 | log.error(S.pos(), "enum.as.identifier"); |
duke@1 | 417 | S.nextToken(); |
duke@1 | 418 | return names.error; |
duke@1 | 419 | } else { |
duke@1 | 420 | log.warning(S.pos(), "enum.as.identifier"); |
duke@1 | 421 | Name name = S.name(); |
duke@1 | 422 | S.nextToken(); |
duke@1 | 423 | return name; |
duke@1 | 424 | } |
duke@1 | 425 | } else { |
duke@1 | 426 | accept(IDENTIFIER); |
duke@1 | 427 | return names.error; |
duke@1 | 428 | } |
duke@1 | 429 | } |
duke@1 | 430 | |
duke@1 | 431 | /** |
duke@1 | 432 | * Qualident = Ident { DOT Ident } |
duke@1 | 433 | */ |
duke@1 | 434 | public JCExpression qualident() { |
duke@1 | 435 | JCExpression t = toP(F.at(S.pos()).Ident(ident())); |
duke@1 | 436 | while (S.token() == DOT) { |
duke@1 | 437 | int pos = S.pos(); |
duke@1 | 438 | S.nextToken(); |
duke@1 | 439 | t = toP(F.at(pos).Select(t, ident())); |
duke@1 | 440 | } |
duke@1 | 441 | return t; |
duke@1 | 442 | } |
duke@1 | 443 | |
duke@1 | 444 | /** |
duke@1 | 445 | * Literal = |
duke@1 | 446 | * INTLITERAL |
duke@1 | 447 | * | LONGLITERAL |
duke@1 | 448 | * | FLOATLITERAL |
duke@1 | 449 | * | DOUBLELITERAL |
duke@1 | 450 | * | CHARLITERAL |
duke@1 | 451 | * | STRINGLITERAL |
duke@1 | 452 | * | TRUE |
duke@1 | 453 | * | FALSE |
duke@1 | 454 | * | NULL |
duke@1 | 455 | */ |
duke@1 | 456 | JCExpression literal(Name prefix) { |
duke@1 | 457 | int pos = S.pos(); |
duke@1 | 458 | JCExpression t = errorTree; |
duke@1 | 459 | switch (S.token()) { |
duke@1 | 460 | case INTLITERAL: |
duke@1 | 461 | try { |
duke@1 | 462 | t = F.at(pos).Literal( |
duke@1 | 463 | TypeTags.INT, |
duke@1 | 464 | Convert.string2int(strval(prefix), S.radix())); |
duke@1 | 465 | } catch (NumberFormatException ex) { |
duke@1 | 466 | log.error(S.pos(), "int.number.too.large", strval(prefix)); |
duke@1 | 467 | } |
duke@1 | 468 | break; |
duke@1 | 469 | case LONGLITERAL: |
duke@1 | 470 | try { |
duke@1 | 471 | t = F.at(pos).Literal( |
duke@1 | 472 | TypeTags.LONG, |
duke@1 | 473 | new Long(Convert.string2long(strval(prefix), S.radix()))); |
duke@1 | 474 | } catch (NumberFormatException ex) { |
duke@1 | 475 | log.error(S.pos(), "int.number.too.large", strval(prefix)); |
duke@1 | 476 | } |
duke@1 | 477 | break; |
duke@1 | 478 | case FLOATLITERAL: { |
duke@1 | 479 | String proper = (S.radix() == 16 ? ("0x"+ S.stringVal()) : S.stringVal()); |
duke@1 | 480 | Float n; |
duke@1 | 481 | try { |
duke@1 | 482 | n = Float.valueOf(proper); |
duke@1 | 483 | } catch (NumberFormatException ex) { |
duke@1 | 484 | // error already repoted in scanner |
duke@1 | 485 | n = Float.NaN; |
duke@1 | 486 | } |
duke@1 | 487 | if (n.floatValue() == 0.0f && !isZero(proper)) |
duke@1 | 488 | log.error(S.pos(), "fp.number.too.small"); |
duke@1 | 489 | else if (n.floatValue() == Float.POSITIVE_INFINITY) |
duke@1 | 490 | log.error(S.pos(), "fp.number.too.large"); |
duke@1 | 491 | else |
duke@1 | 492 | t = F.at(pos).Literal(TypeTags.FLOAT, n); |
duke@1 | 493 | break; |
duke@1 | 494 | } |
duke@1 | 495 | case DOUBLELITERAL: { |
duke@1 | 496 | String proper = (S.radix() == 16 ? ("0x"+ S.stringVal()) : S.stringVal()); |
duke@1 | 497 | Double n; |
duke@1 | 498 | try { |
duke@1 | 499 | n = Double.valueOf(proper); |
duke@1 | 500 | } catch (NumberFormatException ex) { |
duke@1 | 501 | // error already reported in scanner |
duke@1 | 502 | n = Double.NaN; |
duke@1 | 503 | } |
duke@1 | 504 | if (n.doubleValue() == 0.0d && !isZero(proper)) |
duke@1 | 505 | log.error(S.pos(), "fp.number.too.small"); |
duke@1 | 506 | else if (n.doubleValue() == Double.POSITIVE_INFINITY) |
duke@1 | 507 | log.error(S.pos(), "fp.number.too.large"); |
duke@1 | 508 | else |
duke@1 | 509 | t = F.at(pos).Literal(TypeTags.DOUBLE, n); |
duke@1 | 510 | break; |
duke@1 | 511 | } |
duke@1 | 512 | case CHARLITERAL: |
duke@1 | 513 | t = F.at(pos).Literal( |
duke@1 | 514 | TypeTags.CHAR, |
duke@1 | 515 | S.stringVal().charAt(0) + 0); |
duke@1 | 516 | break; |
duke@1 | 517 | case STRINGLITERAL: |
duke@1 | 518 | t = F.at(pos).Literal( |
duke@1 | 519 | TypeTags.CLASS, |
duke@1 | 520 | S.stringVal()); |
duke@1 | 521 | break; |
duke@1 | 522 | case TRUE: case FALSE: |
duke@1 | 523 | t = F.at(pos).Literal( |
duke@1 | 524 | TypeTags.BOOLEAN, |
duke@1 | 525 | (S.token() == TRUE ? 1 : 0)); |
duke@1 | 526 | break; |
duke@1 | 527 | case NULL: |
duke@1 | 528 | t = F.at(pos).Literal( |
duke@1 | 529 | TypeTags.BOT, |
duke@1 | 530 | null); |
duke@1 | 531 | break; |
duke@1 | 532 | default: |
duke@1 | 533 | assert false; |
duke@1 | 534 | } |
duke@1 | 535 | if (t == errorTree) |
duke@1 | 536 | t = F.at(pos).Erroneous(); |
duke@1 | 537 | storeEnd(t, S.endPos()); |
duke@1 | 538 | S.nextToken(); |
duke@1 | 539 | return t; |
duke@1 | 540 | } |
duke@1 | 541 | //where |
duke@1 | 542 | boolean isZero(String s) { |
duke@1 | 543 | char[] cs = s.toCharArray(); |
duke@1 | 544 | int base = ((Character.toLowerCase(s.charAt(1)) == 'x') ? 16 : 10); |
duke@1 | 545 | int i = ((base==16) ? 2 : 0); |
duke@1 | 546 | while (i < cs.length && (cs[i] == '0' || cs[i] == '.')) i++; |
duke@1 | 547 | return !(i < cs.length && (Character.digit(cs[i], base) > 0)); |
duke@1 | 548 | } |
duke@1 | 549 | |
duke@1 | 550 | String strval(Name prefix) { |
duke@1 | 551 | String s = S.stringVal(); |
jjg@113 | 552 | return prefix.isEmpty() ? s : prefix + s; |
duke@1 | 553 | } |
duke@1 | 554 | |
duke@1 | 555 | /** terms can be either expressions or types. |
duke@1 | 556 | */ |
jjg@111 | 557 | public JCExpression parseExpression() { |
duke@1 | 558 | return term(EXPR); |
duke@1 | 559 | } |
duke@1 | 560 | |
jjg@111 | 561 | public JCExpression parseType() { |
duke@1 | 562 | return term(TYPE); |
duke@1 | 563 | } |
duke@1 | 564 | |
duke@1 | 565 | JCExpression term(int newmode) { |
duke@1 | 566 | int prevmode = mode; |
duke@1 | 567 | mode = newmode; |
duke@1 | 568 | JCExpression t = term(); |
duke@1 | 569 | lastmode = mode; |
duke@1 | 570 | mode = prevmode; |
duke@1 | 571 | return t; |
duke@1 | 572 | } |
duke@1 | 573 | |
duke@1 | 574 | /** |
duke@1 | 575 | * Expression = Expression1 [ExpressionRest] |
duke@1 | 576 | * ExpressionRest = [AssignmentOperator Expression1] |
duke@1 | 577 | * AssignmentOperator = "=" | "+=" | "-=" | "*=" | "/=" | |
duke@1 | 578 | * "&=" | "|=" | "^=" | |
duke@1 | 579 | * "%=" | "<<=" | ">>=" | ">>>=" |
duke@1 | 580 | * Type = Type1 |
duke@1 | 581 | * TypeNoParams = TypeNoParams1 |
duke@1 | 582 | * StatementExpression = Expression |
duke@1 | 583 | * ConstantExpression = Expression |
duke@1 | 584 | */ |
duke@1 | 585 | JCExpression term() { |
duke@1 | 586 | JCExpression t = term1(); |
duke@1 | 587 | if ((mode & EXPR) != 0 && |
duke@1 | 588 | S.token() == EQ || PLUSEQ.compareTo(S.token()) <= 0 && S.token().compareTo(GTGTGTEQ) <= 0) |
duke@1 | 589 | return termRest(t); |
duke@1 | 590 | else |
duke@1 | 591 | return t; |
duke@1 | 592 | } |
duke@1 | 593 | |
duke@1 | 594 | JCExpression termRest(JCExpression t) { |
duke@1 | 595 | switch (S.token()) { |
duke@1 | 596 | case EQ: { |
duke@1 | 597 | int pos = S.pos(); |
duke@1 | 598 | S.nextToken(); |
duke@1 | 599 | mode = EXPR; |
duke@1 | 600 | JCExpression t1 = term(); |
duke@1 | 601 | return toP(F.at(pos).Assign(t, t1)); |
duke@1 | 602 | } |
duke@1 | 603 | case PLUSEQ: |
duke@1 | 604 | case SUBEQ: |
duke@1 | 605 | case STAREQ: |
duke@1 | 606 | case SLASHEQ: |
duke@1 | 607 | case PERCENTEQ: |
duke@1 | 608 | case AMPEQ: |
duke@1 | 609 | case BAREQ: |
duke@1 | 610 | case CARETEQ: |
duke@1 | 611 | case LTLTEQ: |
duke@1 | 612 | case GTGTEQ: |
duke@1 | 613 | case GTGTGTEQ: |
duke@1 | 614 | int pos = S.pos(); |
duke@1 | 615 | Token token = S.token(); |
duke@1 | 616 | S.nextToken(); |
duke@1 | 617 | mode = EXPR; |
duke@1 | 618 | JCExpression t1 = term(); |
duke@1 | 619 | return F.at(pos).Assignop(optag(token), t, t1); |
duke@1 | 620 | default: |
duke@1 | 621 | return t; |
duke@1 | 622 | } |
duke@1 | 623 | } |
duke@1 | 624 | |
duke@1 | 625 | /** Expression1 = Expression2 [Expression1Rest] |
duke@1 | 626 | * Type1 = Type2 |
duke@1 | 627 | * TypeNoParams1 = TypeNoParams2 |
duke@1 | 628 | */ |
duke@1 | 629 | JCExpression term1() { |
duke@1 | 630 | JCExpression t = term2(); |
duke@1 | 631 | if ((mode & EXPR) != 0 && S.token() == QUES) { |
duke@1 | 632 | mode = EXPR; |
duke@1 | 633 | return term1Rest(t); |
duke@1 | 634 | } else { |
duke@1 | 635 | return t; |
duke@1 | 636 | } |
duke@1 | 637 | } |
duke@1 | 638 | |
duke@1 | 639 | /** Expression1Rest = ["?" Expression ":" Expression1] |
duke@1 | 640 | */ |
duke@1 | 641 | JCExpression term1Rest(JCExpression t) { |
duke@1 | 642 | if (S.token() == QUES) { |
duke@1 | 643 | int pos = S.pos(); |
duke@1 | 644 | S.nextToken(); |
duke@1 | 645 | JCExpression t1 = term(); |
duke@1 | 646 | accept(COLON); |
duke@1 | 647 | JCExpression t2 = term1(); |
duke@1 | 648 | return F.at(pos).Conditional(t, t1, t2); |
duke@1 | 649 | } else { |
duke@1 | 650 | return t; |
duke@1 | 651 | } |
duke@1 | 652 | } |
duke@1 | 653 | |
duke@1 | 654 | /** Expression2 = Expression3 [Expression2Rest] |
duke@1 | 655 | * Type2 = Type3 |
duke@1 | 656 | * TypeNoParams2 = TypeNoParams3 |
duke@1 | 657 | */ |
duke@1 | 658 | JCExpression term2() { |
duke@1 | 659 | JCExpression t = term3(); |
duke@1 | 660 | if ((mode & EXPR) != 0 && prec(S.token()) >= TreeInfo.orPrec) { |
duke@1 | 661 | mode = EXPR; |
duke@1 | 662 | return term2Rest(t, TreeInfo.orPrec); |
duke@1 | 663 | } else { |
duke@1 | 664 | return t; |
duke@1 | 665 | } |
duke@1 | 666 | } |
duke@1 | 667 | |
duke@1 | 668 | /* Expression2Rest = {infixop Expression3} |
duke@1 | 669 | * | Expression3 instanceof Type |
duke@1 | 670 | * infixop = "||" |
duke@1 | 671 | * | "&&" |
duke@1 | 672 | * | "|" |
duke@1 | 673 | * | "^" |
duke@1 | 674 | * | "&" |
duke@1 | 675 | * | "==" | "!=" |
duke@1 | 676 | * | "<" | ">" | "<=" | ">=" |
duke@1 | 677 | * | "<<" | ">>" | ">>>" |
duke@1 | 678 | * | "+" | "-" |
duke@1 | 679 | * | "*" | "/" | "%" |
duke@1 | 680 | */ |
duke@1 | 681 | JCExpression term2Rest(JCExpression t, int minprec) { |
duke@1 | 682 | List<JCExpression[]> savedOd = odStackSupply.elems; |
duke@1 | 683 | JCExpression[] odStack = newOdStack(); |
duke@1 | 684 | List<Token[]> savedOp = opStackSupply.elems; |
duke@1 | 685 | Token[] opStack = newOpStack(); |
duke@1 | 686 | // optimization, was odStack = new Tree[...]; opStack = new Tree[...]; |
duke@1 | 687 | int top = 0; |
duke@1 | 688 | odStack[0] = t; |
duke@1 | 689 | int startPos = S.pos(); |
duke@1 | 690 | Token topOp = ERROR; |
duke@1 | 691 | while (prec(S.token()) >= minprec) { |
duke@1 | 692 | opStack[top] = topOp; |
duke@1 | 693 | top++; |
duke@1 | 694 | topOp = S.token(); |
duke@1 | 695 | int pos = S.pos(); |
duke@1 | 696 | S.nextToken(); |
jjg@111 | 697 | odStack[top] = topOp == INSTANCEOF ? parseType() : term3(); |
duke@1 | 698 | while (top > 0 && prec(topOp) >= prec(S.token())) { |
duke@1 | 699 | odStack[top-1] = makeOp(pos, topOp, odStack[top-1], |
duke@1 | 700 | odStack[top]); |
duke@1 | 701 | top--; |
duke@1 | 702 | topOp = opStack[top]; |
duke@1 | 703 | } |
duke@1 | 704 | } |
duke@1 | 705 | assert top == 0; |
duke@1 | 706 | t = odStack[0]; |
duke@1 | 707 | |
duke@1 | 708 | if (t.getTag() == JCTree.PLUS) { |
duke@1 | 709 | StringBuffer buf = foldStrings(t); |
duke@1 | 710 | if (buf != null) { |
duke@1 | 711 | t = toP(F.at(startPos).Literal(TypeTags.CLASS, buf.toString())); |
duke@1 | 712 | } |
duke@1 | 713 | } |
duke@1 | 714 | |
duke@1 | 715 | odStackSupply.elems = savedOd; // optimization |
duke@1 | 716 | opStackSupply.elems = savedOp; // optimization |
duke@1 | 717 | return t; |
duke@1 | 718 | } |
duke@1 | 719 | //where |
duke@1 | 720 | /** Construct a binary or type test node. |
duke@1 | 721 | */ |
duke@1 | 722 | private JCExpression makeOp(int pos, |
duke@1 | 723 | Token topOp, |
duke@1 | 724 | JCExpression od1, |
duke@1 | 725 | JCExpression od2) |
duke@1 | 726 | { |
duke@1 | 727 | if (topOp == INSTANCEOF) { |
duke@1 | 728 | return F.at(pos).TypeTest(od1, od2); |
duke@1 | 729 | } else { |
duke@1 | 730 | return F.at(pos).Binary(optag(topOp), od1, od2); |
duke@1 | 731 | } |
duke@1 | 732 | } |
duke@1 | 733 | /** If tree is a concatenation of string literals, replace it |
duke@1 | 734 | * by a single literal representing the concatenated string. |
duke@1 | 735 | */ |
duke@1 | 736 | protected StringBuffer foldStrings(JCTree tree) { |
duke@1 | 737 | List<String> buf = List.nil(); |
duke@1 | 738 | while (true) { |
duke@1 | 739 | if (tree.getTag() == JCTree.LITERAL) { |
duke@1 | 740 | JCLiteral lit = (JCLiteral) tree; |
duke@1 | 741 | if (lit.typetag == TypeTags.CLASS) { |
duke@1 | 742 | StringBuffer sbuf = |
duke@1 | 743 | new StringBuffer((String)lit.value); |
duke@1 | 744 | while (buf.nonEmpty()) { |
duke@1 | 745 | sbuf.append(buf.head); |
duke@1 | 746 | buf = buf.tail; |
duke@1 | 747 | } |
duke@1 | 748 | return sbuf; |
duke@1 | 749 | } |
duke@1 | 750 | } else if (tree.getTag() == JCTree.PLUS) { |
duke@1 | 751 | JCBinary op = (JCBinary)tree; |
duke@1 | 752 | if (op.rhs.getTag() == JCTree.LITERAL) { |
duke@1 | 753 | JCLiteral lit = (JCLiteral) op.rhs; |
duke@1 | 754 | if (lit.typetag == TypeTags.CLASS) { |
duke@1 | 755 | buf = buf.prepend((String) lit.value); |
duke@1 | 756 | tree = op.lhs; |
duke@1 | 757 | continue; |
duke@1 | 758 | } |
duke@1 | 759 | } |
duke@1 | 760 | } |
duke@1 | 761 | return null; |
duke@1 | 762 | } |
duke@1 | 763 | } |
duke@1 | 764 | |
duke@1 | 765 | /** optimization: To save allocating a new operand/operator stack |
duke@1 | 766 | * for every binary operation, we use supplys. |
duke@1 | 767 | */ |
duke@1 | 768 | ListBuffer<JCExpression[]> odStackSupply = new ListBuffer<JCExpression[]>(); |
duke@1 | 769 | ListBuffer<Token[]> opStackSupply = new ListBuffer<Token[]>(); |
duke@1 | 770 | |
duke@1 | 771 | private JCExpression[] newOdStack() { |
duke@1 | 772 | if (odStackSupply.elems == odStackSupply.last) |
duke@1 | 773 | odStackSupply.append(new JCExpression[infixPrecedenceLevels + 1]); |
duke@1 | 774 | JCExpression[] odStack = odStackSupply.elems.head; |
duke@1 | 775 | odStackSupply.elems = odStackSupply.elems.tail; |
duke@1 | 776 | return odStack; |
duke@1 | 777 | } |
duke@1 | 778 | |
duke@1 | 779 | private Token[] newOpStack() { |
duke@1 | 780 | if (opStackSupply.elems == opStackSupply.last) |
duke@1 | 781 | opStackSupply.append(new Token[infixPrecedenceLevels + 1]); |
duke@1 | 782 | Token[] opStack = opStackSupply.elems.head; |
duke@1 | 783 | opStackSupply.elems = opStackSupply.elems.tail; |
duke@1 | 784 | return opStack; |
duke@1 | 785 | } |
duke@1 | 786 | |
duke@1 | 787 | /** Expression3 = PrefixOp Expression3 |
duke@1 | 788 | * | "(" Expr | TypeNoParams ")" Expression3 |
duke@1 | 789 | * | Primary {Selector} {PostfixOp} |
duke@1 | 790 | * Primary = "(" Expression ")" |
duke@1 | 791 | * | Literal |
duke@1 | 792 | * | [TypeArguments] THIS [Arguments] |
duke@1 | 793 | * | [TypeArguments] SUPER SuperSuffix |
duke@1 | 794 | * | NEW [TypeArguments] Creator |
duke@1 | 795 | * | Ident { "." Ident } |
duke@1 | 796 | * [ "[" ( "]" BracketsOpt "." CLASS | Expression "]" ) |
duke@1 | 797 | * | Arguments |
duke@1 | 798 | * | "." ( CLASS | THIS | [TypeArguments] SUPER Arguments | NEW [TypeArguments] InnerCreator ) |
duke@1 | 799 | * ] |
duke@1 | 800 | * | BasicType BracketsOpt "." CLASS |
duke@1 | 801 | * PrefixOp = "++" | "--" | "!" | "~" | "+" | "-" |
duke@1 | 802 | * PostfixOp = "++" | "--" |
duke@1 | 803 | * Type3 = Ident { "." Ident } [TypeArguments] {TypeSelector} BracketsOpt |
duke@1 | 804 | * | BasicType |
duke@1 | 805 | * TypeNoParams3 = Ident { "." Ident } BracketsOpt |
duke@1 | 806 | * Selector = "." [TypeArguments] Ident [Arguments] |
duke@1 | 807 | * | "." THIS |
duke@1 | 808 | * | "." [TypeArguments] SUPER SuperSuffix |
duke@1 | 809 | * | "." NEW [TypeArguments] InnerCreator |
duke@1 | 810 | * | "[" Expression "]" |
duke@1 | 811 | * TypeSelector = "." Ident [TypeArguments] |
duke@1 | 812 | * SuperSuffix = Arguments | "." Ident [Arguments] |
duke@1 | 813 | */ |
duke@1 | 814 | protected JCExpression term3() { |
duke@1 | 815 | int pos = S.pos(); |
duke@1 | 816 | JCExpression t; |
duke@1 | 817 | List<JCExpression> typeArgs = typeArgumentsOpt(EXPR); |
duke@1 | 818 | switch (S.token()) { |
duke@1 | 819 | case QUES: |
duke@1 | 820 | if ((mode & TYPE) != 0 && (mode & (TYPEARG|NOPARAMS)) == TYPEARG) { |
duke@1 | 821 | mode = TYPE; |
duke@1 | 822 | return typeArgument(); |
duke@1 | 823 | } else |
duke@1 | 824 | return illegal(); |
duke@1 | 825 | case PLUSPLUS: case SUBSUB: case BANG: case TILDE: case PLUS: case SUB: |
duke@1 | 826 | if (typeArgs == null && (mode & EXPR) != 0) { |
duke@1 | 827 | Token token = S.token(); |
duke@1 | 828 | S.nextToken(); |
duke@1 | 829 | mode = EXPR; |
duke@1 | 830 | if (token == SUB && |
duke@1 | 831 | (S.token() == INTLITERAL || S.token() == LONGLITERAL) && |
duke@1 | 832 | S.radix() == 10) { |
duke@1 | 833 | mode = EXPR; |
duke@1 | 834 | t = literal(names.hyphen); |
duke@1 | 835 | } else { |
duke@1 | 836 | t = term3(); |
duke@1 | 837 | return F.at(pos).Unary(unoptag(token), t); |
duke@1 | 838 | } |
duke@1 | 839 | } else return illegal(); |
duke@1 | 840 | break; |
duke@1 | 841 | case LPAREN: |
duke@1 | 842 | if (typeArgs == null && (mode & EXPR) != 0) { |
duke@1 | 843 | S.nextToken(); |
duke@1 | 844 | mode = EXPR | TYPE | NOPARAMS; |
duke@1 | 845 | t = term3(); |
duke@1 | 846 | if ((mode & TYPE) != 0 && S.token() == LT) { |
duke@1 | 847 | // Could be a cast to a parameterized type |
duke@1 | 848 | int op = JCTree.LT; |
duke@1 | 849 | int pos1 = S.pos(); |
duke@1 | 850 | S.nextToken(); |
duke@1 | 851 | mode &= (EXPR | TYPE); |
duke@1 | 852 | mode |= TYPEARG; |
duke@1 | 853 | JCExpression t1 = term3(); |
duke@1 | 854 | if ((mode & TYPE) != 0 && |
duke@1 | 855 | (S.token() == COMMA || S.token() == GT)) { |
duke@1 | 856 | mode = TYPE; |
duke@1 | 857 | ListBuffer<JCExpression> args = new ListBuffer<JCExpression>(); |
duke@1 | 858 | args.append(t1); |
duke@1 | 859 | while (S.token() == COMMA) { |
duke@1 | 860 | S.nextToken(); |
duke@1 | 861 | args.append(typeArgument()); |
duke@1 | 862 | } |
duke@1 | 863 | accept(GT); |
duke@1 | 864 | t = F.at(pos1).TypeApply(t, args.toList()); |
duke@1 | 865 | checkGenerics(); |
mcimadamore@185 | 866 | while (S.token() == DOT) { |
mcimadamore@185 | 867 | S.nextToken(); |
mcimadamore@185 | 868 | mode = TYPE; |
mcimadamore@185 | 869 | t = toP(F.at(S.pos()).Select(t, ident())); |
mcimadamore@185 | 870 | t = typeArgumentsOpt(t); |
mcimadamore@185 | 871 | } |
mcimadamore@195 | 872 | t = bracketsOpt(toP(t)); |
duke@1 | 873 | } else if ((mode & EXPR) != 0) { |
duke@1 | 874 | mode = EXPR; |
duke@1 | 875 | t = F.at(pos1).Binary(op, t, term2Rest(t1, TreeInfo.shiftPrec)); |
duke@1 | 876 | t = termRest(term1Rest(term2Rest(t, TreeInfo.orPrec))); |
duke@1 | 877 | } else { |
duke@1 | 878 | accept(GT); |
duke@1 | 879 | } |
mcimadamore@185 | 880 | } |
mcimadamore@185 | 881 | else { |
duke@1 | 882 | t = termRest(term1Rest(term2Rest(t, TreeInfo.orPrec))); |
duke@1 | 883 | } |
duke@1 | 884 | accept(RPAREN); |
duke@1 | 885 | lastmode = mode; |
duke@1 | 886 | mode = EXPR; |
duke@1 | 887 | if ((lastmode & EXPR) == 0) { |
duke@1 | 888 | JCExpression t1 = term3(); |
duke@1 | 889 | return F.at(pos).TypeCast(t, t1); |
duke@1 | 890 | } else if ((lastmode & TYPE) != 0) { |
duke@1 | 891 | switch (S.token()) { |
duke@1 | 892 | /*case PLUSPLUS: case SUBSUB: */ |
duke@1 | 893 | case BANG: case TILDE: |
duke@1 | 894 | case LPAREN: case THIS: case SUPER: |
duke@1 | 895 | case INTLITERAL: case LONGLITERAL: case FLOATLITERAL: |
duke@1 | 896 | case DOUBLELITERAL: case CHARLITERAL: case STRINGLITERAL: |
duke@1 | 897 | case TRUE: case FALSE: case NULL: |
duke@1 | 898 | case NEW: case IDENTIFIER: case ASSERT: case ENUM: |
duke@1 | 899 | case BYTE: case SHORT: case CHAR: case INT: |
duke@1 | 900 | case LONG: case FLOAT: case DOUBLE: case BOOLEAN: case VOID: |
duke@1 | 901 | JCExpression t1 = term3(); |
duke@1 | 902 | return F.at(pos).TypeCast(t, t1); |
duke@1 | 903 | } |
duke@1 | 904 | } |
duke@1 | 905 | } else return illegal(); |
duke@1 | 906 | t = toP(F.at(pos).Parens(t)); |
duke@1 | 907 | break; |
duke@1 | 908 | case THIS: |
duke@1 | 909 | if ((mode & EXPR) != 0) { |
duke@1 | 910 | mode = EXPR; |
duke@1 | 911 | t = to(F.at(pos).Ident(names._this)); |
duke@1 | 912 | S.nextToken(); |
duke@1 | 913 | if (typeArgs == null) |
duke@1 | 914 | t = argumentsOpt(null, t); |
duke@1 | 915 | else |
duke@1 | 916 | t = arguments(typeArgs, t); |
duke@1 | 917 | typeArgs = null; |
duke@1 | 918 | } else return illegal(); |
duke@1 | 919 | break; |
duke@1 | 920 | case SUPER: |
duke@1 | 921 | if ((mode & EXPR) != 0) { |
duke@1 | 922 | mode = EXPR; |
duke@1 | 923 | t = to(superSuffix(typeArgs, F.at(pos).Ident(names._super))); |
duke@1 | 924 | typeArgs = null; |
duke@1 | 925 | } else return illegal(); |
duke@1 | 926 | break; |
duke@1 | 927 | case INTLITERAL: case LONGLITERAL: case FLOATLITERAL: case DOUBLELITERAL: |
duke@1 | 928 | case CHARLITERAL: case STRINGLITERAL: |
duke@1 | 929 | case TRUE: case FALSE: case NULL: |
duke@1 | 930 | if (typeArgs == null && (mode & EXPR) != 0) { |
duke@1 | 931 | mode = EXPR; |
duke@1 | 932 | t = literal(names.empty); |
duke@1 | 933 | } else return illegal(); |
duke@1 | 934 | break; |
duke@1 | 935 | case NEW: |
duke@1 | 936 | if (typeArgs != null) return illegal(); |
duke@1 | 937 | if ((mode & EXPR) != 0) { |
duke@1 | 938 | mode = EXPR; |
duke@1 | 939 | S.nextToken(); |
duke@1 | 940 | if (S.token() == LT) typeArgs = typeArguments(); |
duke@1 | 941 | t = creator(pos, typeArgs); |
duke@1 | 942 | typeArgs = null; |
duke@1 | 943 | } else return illegal(); |
duke@1 | 944 | break; |
duke@1 | 945 | case IDENTIFIER: case ASSERT: case ENUM: |
duke@1 | 946 | if (typeArgs != null) return illegal(); |
duke@1 | 947 | t = toP(F.at(S.pos()).Ident(ident())); |
duke@1 | 948 | loop: while (true) { |
duke@1 | 949 | pos = S.pos(); |
duke@1 | 950 | switch (S.token()) { |
duke@1 | 951 | case LBRACKET: |
duke@1 | 952 | S.nextToken(); |
duke@1 | 953 | if (S.token() == RBRACKET) { |
duke@1 | 954 | S.nextToken(); |
duke@1 | 955 | t = bracketsOpt(t); |
duke@1 | 956 | t = toP(F.at(pos).TypeArray(t)); |
duke@1 | 957 | t = bracketsSuffix(t); |
duke@1 | 958 | } else { |
duke@1 | 959 | if ((mode & EXPR) != 0) { |
duke@1 | 960 | mode = EXPR; |
duke@1 | 961 | JCExpression t1 = term(); |
duke@1 | 962 | t = to(F.at(pos).Indexed(t, t1)); |
duke@1 | 963 | } |
duke@1 | 964 | accept(RBRACKET); |
duke@1 | 965 | } |
duke@1 | 966 | break loop; |
duke@1 | 967 | case LPAREN: |
duke@1 | 968 | if ((mode & EXPR) != 0) { |
duke@1 | 969 | mode = EXPR; |
duke@1 | 970 | t = arguments(typeArgs, t); |
duke@1 | 971 | typeArgs = null; |
duke@1 | 972 | } |
duke@1 | 973 | break loop; |
duke@1 | 974 | case DOT: |
duke@1 | 975 | S.nextToken(); |
mcimadamore@26 | 976 | int oldmode = mode; |
mcimadamore@26 | 977 | mode &= ~NOPARAMS; |
duke@1 | 978 | typeArgs = typeArgumentsOpt(EXPR); |
mcimadamore@26 | 979 | mode = oldmode; |
duke@1 | 980 | if ((mode & EXPR) != 0) { |
duke@1 | 981 | switch (S.token()) { |
duke@1 | 982 | case CLASS: |
duke@1 | 983 | if (typeArgs != null) return illegal(); |
duke@1 | 984 | mode = EXPR; |
duke@1 | 985 | t = to(F.at(pos).Select(t, names._class)); |
duke@1 | 986 | S.nextToken(); |
duke@1 | 987 | break loop; |
duke@1 | 988 | case THIS: |
duke@1 | 989 | if (typeArgs != null) return illegal(); |
duke@1 | 990 | mode = EXPR; |
duke@1 | 991 | t = to(F.at(pos).Select(t, names._this)); |
duke@1 | 992 | S.nextToken(); |
duke@1 | 993 | break loop; |
duke@1 | 994 | case SUPER: |
duke@1 | 995 | mode = EXPR; |
duke@1 | 996 | t = to(F.at(pos).Select(t, names._super)); |
duke@1 | 997 | t = superSuffix(typeArgs, t); |
duke@1 | 998 | typeArgs = null; |
duke@1 | 999 | break loop; |
duke@1 | 1000 | case NEW: |
duke@1 | 1001 | if (typeArgs != null) return illegal(); |
duke@1 | 1002 | mode = EXPR; |
duke@1 | 1003 | int pos1 = S.pos(); |
duke@1 | 1004 | S.nextToken(); |
duke@1 | 1005 | if (S.token() == LT) typeArgs = typeArguments(); |
duke@1 | 1006 | t = innerCreator(pos1, typeArgs, t); |
duke@1 | 1007 | typeArgs = null; |
duke@1 | 1008 | break loop; |
duke@1 | 1009 | } |
duke@1 | 1010 | } |
duke@1 | 1011 | // typeArgs saved for next loop iteration. |
duke@1 | 1012 | t = toP(F.at(pos).Select(t, ident())); |
duke@1 | 1013 | break; |
duke@1 | 1014 | default: |
duke@1 | 1015 | break loop; |
duke@1 | 1016 | } |
duke@1 | 1017 | } |
duke@1 | 1018 | if (typeArgs != null) illegal(); |
duke@1 | 1019 | t = typeArgumentsOpt(t); |
duke@1 | 1020 | break; |
duke@1 | 1021 | case BYTE: case SHORT: case CHAR: case INT: case LONG: case FLOAT: |
duke@1 | 1022 | case DOUBLE: case BOOLEAN: |
duke@1 | 1023 | if (typeArgs != null) illegal(); |
duke@1 | 1024 | t = bracketsSuffix(bracketsOpt(basicType())); |
duke@1 | 1025 | break; |
duke@1 | 1026 | case VOID: |
duke@1 | 1027 | if (typeArgs != null) illegal(); |
duke@1 | 1028 | if ((mode & EXPR) != 0) { |
duke@1 | 1029 | S.nextToken(); |
duke@1 | 1030 | if (S.token() == DOT) { |
duke@1 | 1031 | JCPrimitiveTypeTree ti = toP(F.at(pos).TypeIdent(TypeTags.VOID)); |
duke@1 | 1032 | t = bracketsSuffix(ti); |
duke@1 | 1033 | } else { |
duke@1 | 1034 | return illegal(pos); |
duke@1 | 1035 | } |
duke@1 | 1036 | } else { |
jrose@267 | 1037 | // Support the corner case of myMethodHandle.<void>invoke() by passing |
jrose@267 | 1038 | // a void type (like other primitive types) to the next phase. |
jrose@267 | 1039 | // The error will be reported in Attr.attribTypes or Attr.visitApply. |
jrose@267 | 1040 | JCPrimitiveTypeTree ti = to(F.at(pos).TypeIdent(TypeTags.VOID)); |
jrose@267 | 1041 | S.nextToken(); |
jrose@267 | 1042 | return ti; |
jrose@267 | 1043 | //return illegal(); |
duke@1 | 1044 | } |
duke@1 | 1045 | break; |
duke@1 | 1046 | default: |
duke@1 | 1047 | return illegal(); |
duke@1 | 1048 | } |
duke@1 | 1049 | if (typeArgs != null) illegal(); |
duke@1 | 1050 | while (true) { |
duke@1 | 1051 | int pos1 = S.pos(); |
duke@1 | 1052 | if (S.token() == LBRACKET) { |
duke@1 | 1053 | S.nextToken(); |
duke@1 | 1054 | if ((mode & TYPE) != 0) { |
duke@1 | 1055 | int oldmode = mode; |
duke@1 | 1056 | mode = TYPE; |
duke@1 | 1057 | if (S.token() == RBRACKET) { |
duke@1 | 1058 | S.nextToken(); |
duke@1 | 1059 | t = bracketsOpt(t); |
duke@1 | 1060 | t = toP(F.at(pos1).TypeArray(t)); |
duke@1 | 1061 | return t; |
duke@1 | 1062 | } |
duke@1 | 1063 | mode = oldmode; |
duke@1 | 1064 | } |
duke@1 | 1065 | if ((mode & EXPR) != 0) { |
duke@1 | 1066 | mode = EXPR; |
duke@1 | 1067 | JCExpression t1 = term(); |
duke@1 | 1068 | t = to(F.at(pos1).Indexed(t, t1)); |
duke@1 | 1069 | } |
duke@1 | 1070 | accept(RBRACKET); |
duke@1 | 1071 | } else if (S.token() == DOT) { |
duke@1 | 1072 | S.nextToken(); |
duke@1 | 1073 | typeArgs = typeArgumentsOpt(EXPR); |
duke@1 | 1074 | if (S.token() == SUPER && (mode & EXPR) != 0) { |
duke@1 | 1075 | mode = EXPR; |
duke@1 | 1076 | t = to(F.at(pos1).Select(t, names._super)); |
duke@1 | 1077 | S.nextToken(); |
duke@1 | 1078 | t = arguments(typeArgs, t); |
duke@1 | 1079 | typeArgs = null; |
duke@1 | 1080 | } else if (S.token() == NEW && (mode & EXPR) != 0) { |
duke@1 | 1081 | if (typeArgs != null) return illegal(); |
duke@1 | 1082 | mode = EXPR; |
duke@1 | 1083 | int pos2 = S.pos(); |
duke@1 | 1084 | S.nextToken(); |
duke@1 | 1085 | if (S.token() == LT) typeArgs = typeArguments(); |
duke@1 | 1086 | t = innerCreator(pos2, typeArgs, t); |
duke@1 | 1087 | typeArgs = null; |
duke@1 | 1088 | } else { |
duke@1 | 1089 | t = toP(F.at(pos1).Select(t, ident())); |
duke@1 | 1090 | t = argumentsOpt(typeArgs, typeArgumentsOpt(t)); |
duke@1 | 1091 | typeArgs = null; |
duke@1 | 1092 | } |
duke@1 | 1093 | } else { |
duke@1 | 1094 | break; |
duke@1 | 1095 | } |
duke@1 | 1096 | } |
duke@1 | 1097 | while ((S.token() == PLUSPLUS || S.token() == SUBSUB) && (mode & EXPR) != 0) { |
duke@1 | 1098 | mode = EXPR; |
duke@1 | 1099 | t = to(F.at(S.pos()).Unary( |
duke@1 | 1100 | S.token() == PLUSPLUS ? JCTree.POSTINC : JCTree.POSTDEC, t)); |
duke@1 | 1101 | S.nextToken(); |
duke@1 | 1102 | } |
duke@1 | 1103 | return toP(t); |
duke@1 | 1104 | } |
duke@1 | 1105 | |
duke@1 | 1106 | /** SuperSuffix = Arguments | "." [TypeArguments] Ident [Arguments] |
duke@1 | 1107 | */ |
duke@1 | 1108 | JCExpression superSuffix(List<JCExpression> typeArgs, JCExpression t) { |
duke@1 | 1109 | S.nextToken(); |
duke@1 | 1110 | if (S.token() == LPAREN || typeArgs != null) { |
duke@1 | 1111 | t = arguments(typeArgs, t); |
duke@1 | 1112 | } else { |
duke@1 | 1113 | int pos = S.pos(); |
duke@1 | 1114 | accept(DOT); |
duke@1 | 1115 | typeArgs = (S.token() == LT) ? typeArguments() : null; |
duke@1 | 1116 | t = toP(F.at(pos).Select(t, ident())); |
duke@1 | 1117 | t = argumentsOpt(typeArgs, t); |
duke@1 | 1118 | } |
duke@1 | 1119 | return t; |
duke@1 | 1120 | } |
duke@1 | 1121 | |
duke@1 | 1122 | /** BasicType = BYTE | SHORT | CHAR | INT | LONG | FLOAT | DOUBLE | BOOLEAN |
duke@1 | 1123 | */ |
duke@1 | 1124 | JCPrimitiveTypeTree basicType() { |
duke@1 | 1125 | JCPrimitiveTypeTree t = to(F.at(S.pos()).TypeIdent(typetag(S.token()))); |
duke@1 | 1126 | S.nextToken(); |
duke@1 | 1127 | return t; |
duke@1 | 1128 | } |
duke@1 | 1129 | |
duke@1 | 1130 | /** ArgumentsOpt = [ Arguments ] |
duke@1 | 1131 | */ |
duke@1 | 1132 | JCExpression argumentsOpt(List<JCExpression> typeArgs, JCExpression t) { |
duke@1 | 1133 | if ((mode & EXPR) != 0 && S.token() == LPAREN || typeArgs != null) { |
duke@1 | 1134 | mode = EXPR; |
duke@1 | 1135 | return arguments(typeArgs, t); |
duke@1 | 1136 | } else { |
duke@1 | 1137 | return t; |
duke@1 | 1138 | } |
duke@1 | 1139 | } |
duke@1 | 1140 | |
duke@1 | 1141 | /** Arguments = "(" [Expression { COMMA Expression }] ")" |
duke@1 | 1142 | */ |
duke@1 | 1143 | List<JCExpression> arguments() { |
duke@1 | 1144 | ListBuffer<JCExpression> args = lb(); |
duke@1 | 1145 | if (S.token() == LPAREN) { |
duke@1 | 1146 | S.nextToken(); |
duke@1 | 1147 | if (S.token() != RPAREN) { |
jjg@111 | 1148 | args.append(parseExpression()); |
duke@1 | 1149 | while (S.token() == COMMA) { |
duke@1 | 1150 | S.nextToken(); |
jjg@111 | 1151 | args.append(parseExpression()); |
duke@1 | 1152 | } |
duke@1 | 1153 | } |
duke@1 | 1154 | accept(RPAREN); |
duke@1 | 1155 | } else { |
mcimadamore@80 | 1156 | syntaxError(S.pos(), "expected", LPAREN); |
duke@1 | 1157 | } |
duke@1 | 1158 | return args.toList(); |
duke@1 | 1159 | } |
duke@1 | 1160 | |
duke@1 | 1161 | JCMethodInvocation arguments(List<JCExpression> typeArgs, JCExpression t) { |
duke@1 | 1162 | int pos = S.pos(); |
duke@1 | 1163 | List<JCExpression> args = arguments(); |
duke@1 | 1164 | return toP(F.at(pos).Apply(typeArgs, t, args)); |
duke@1 | 1165 | } |
duke@1 | 1166 | |
duke@1 | 1167 | /** TypeArgumentsOpt = [ TypeArguments ] |
duke@1 | 1168 | */ |
duke@1 | 1169 | JCExpression typeArgumentsOpt(JCExpression t) { |
duke@1 | 1170 | if (S.token() == LT && |
duke@1 | 1171 | (mode & TYPE) != 0 && |
duke@1 | 1172 | (mode & NOPARAMS) == 0) { |
duke@1 | 1173 | mode = TYPE; |
duke@1 | 1174 | checkGenerics(); |
duke@1 | 1175 | return typeArguments(t); |
duke@1 | 1176 | } else { |
duke@1 | 1177 | return t; |
duke@1 | 1178 | } |
duke@1 | 1179 | } |
duke@1 | 1180 | List<JCExpression> typeArgumentsOpt() { |
duke@1 | 1181 | return typeArgumentsOpt(TYPE); |
duke@1 | 1182 | } |
duke@1 | 1183 | |
duke@1 | 1184 | List<JCExpression> typeArgumentsOpt(int useMode) { |
duke@1 | 1185 | if (S.token() == LT) { |
duke@1 | 1186 | checkGenerics(); |
duke@1 | 1187 | if ((mode & useMode) == 0 || |
duke@1 | 1188 | (mode & NOPARAMS) != 0) { |
duke@1 | 1189 | illegal(); |
duke@1 | 1190 | } |
duke@1 | 1191 | mode = useMode; |
duke@1 | 1192 | return typeArguments(); |
duke@1 | 1193 | } |
duke@1 | 1194 | return null; |
duke@1 | 1195 | } |
duke@1 | 1196 | |
duke@1 | 1197 | /** TypeArguments = "<" TypeArgument {"," TypeArgument} ">" |
duke@1 | 1198 | */ |
duke@1 | 1199 | List<JCExpression> typeArguments() { |
duke@1 | 1200 | ListBuffer<JCExpression> args = lb(); |
duke@1 | 1201 | if (S.token() == LT) { |
duke@1 | 1202 | S.nextToken(); |
jjg@111 | 1203 | args.append(((mode & EXPR) == 0) ? typeArgument() : parseType()); |
duke@1 | 1204 | while (S.token() == COMMA) { |
duke@1 | 1205 | S.nextToken(); |
jjg@111 | 1206 | args.append(((mode & EXPR) == 0) ? typeArgument() : parseType()); |
duke@1 | 1207 | } |
duke@1 | 1208 | switch (S.token()) { |
duke@1 | 1209 | case GTGTGTEQ: |
duke@1 | 1210 | S.token(GTGTEQ); |
duke@1 | 1211 | break; |
duke@1 | 1212 | case GTGTEQ: |
duke@1 | 1213 | S.token(GTEQ); |
duke@1 | 1214 | break; |
duke@1 | 1215 | case GTEQ: |
duke@1 | 1216 | S.token(EQ); |
duke@1 | 1217 | break; |
duke@1 | 1218 | case GTGTGT: |
duke@1 | 1219 | S.token(GTGT); |
duke@1 | 1220 | break; |
duke@1 | 1221 | case GTGT: |
duke@1 | 1222 | S.token(GT); |
duke@1 | 1223 | break; |
duke@1 | 1224 | default: |
duke@1 | 1225 | accept(GT); |
duke@1 | 1226 | break; |
duke@1 | 1227 | } |
duke@1 | 1228 | } else { |
mcimadamore@80 | 1229 | syntaxError(S.pos(), "expected", LT); |
duke@1 | 1230 | } |
duke@1 | 1231 | return args.toList(); |
duke@1 | 1232 | } |
duke@1 | 1233 | |
duke@1 | 1234 | /** TypeArgument = Type |
duke@1 | 1235 | * | "?" |
duke@1 | 1236 | * | "?" EXTENDS Type {"&" Type} |
duke@1 | 1237 | * | "?" SUPER Type |
duke@1 | 1238 | */ |
duke@1 | 1239 | JCExpression typeArgument() { |
jjg@111 | 1240 | if (S.token() != QUES) return parseType(); |
duke@1 | 1241 | int pos = S.pos(); |
duke@1 | 1242 | S.nextToken(); |
duke@1 | 1243 | if (S.token() == EXTENDS) { |
duke@1 | 1244 | TypeBoundKind t = to(F.at(S.pos()).TypeBoundKind(BoundKind.EXTENDS)); |
duke@1 | 1245 | S.nextToken(); |
jjg@111 | 1246 | return F.at(pos).Wildcard(t, parseType()); |
duke@1 | 1247 | } else if (S.token() == SUPER) { |
duke@1 | 1248 | TypeBoundKind t = to(F.at(S.pos()).TypeBoundKind(BoundKind.SUPER)); |
duke@1 | 1249 | S.nextToken(); |
jjg@111 | 1250 | return F.at(pos).Wildcard(t, parseType()); |
duke@1 | 1251 | } else if (S.token() == IDENTIFIER) { |
duke@1 | 1252 | //error recovery |
duke@1 | 1253 | reportSyntaxError(S.prevEndPos(), "expected3", |
mcimadamore@80 | 1254 | GT, EXTENDS, SUPER); |
duke@1 | 1255 | TypeBoundKind t = F.at(Position.NOPOS).TypeBoundKind(BoundKind.UNBOUND); |
duke@1 | 1256 | JCExpression wc = toP(F.at(pos).Wildcard(t, null)); |
duke@1 | 1257 | JCIdent id = toP(F.at(S.pos()).Ident(ident())); |
duke@1 | 1258 | return F.at(pos).Erroneous(List.<JCTree>of(wc, id)); |
duke@1 | 1259 | } else { |
duke@1 | 1260 | TypeBoundKind t = F.at(Position.NOPOS).TypeBoundKind(BoundKind.UNBOUND); |
duke@1 | 1261 | return toP(F.at(pos).Wildcard(t, null)); |
duke@1 | 1262 | } |
duke@1 | 1263 | } |
duke@1 | 1264 | |
duke@1 | 1265 | JCTypeApply typeArguments(JCExpression t) { |
duke@1 | 1266 | int pos = S.pos(); |
duke@1 | 1267 | List<JCExpression> args = typeArguments(); |
duke@1 | 1268 | return toP(F.at(pos).TypeApply(t, args)); |
duke@1 | 1269 | } |
duke@1 | 1270 | |
duke@1 | 1271 | /** BracketsOpt = {"[" "]"} |
duke@1 | 1272 | */ |
duke@1 | 1273 | private JCExpression bracketsOpt(JCExpression t) { |
duke@1 | 1274 | if (S.token() == LBRACKET) { |
duke@1 | 1275 | int pos = S.pos(); |
duke@1 | 1276 | S.nextToken(); |
duke@1 | 1277 | t = bracketsOptCont(t, pos); |
duke@1 | 1278 | F.at(pos); |
duke@1 | 1279 | } |
duke@1 | 1280 | return t; |
duke@1 | 1281 | } |
duke@1 | 1282 | |
duke@1 | 1283 | private JCArrayTypeTree bracketsOptCont(JCExpression t, int pos) { |
duke@1 | 1284 | accept(RBRACKET); |
duke@1 | 1285 | t = bracketsOpt(t); |
duke@1 | 1286 | return toP(F.at(pos).TypeArray(t)); |
duke@1 | 1287 | } |
duke@1 | 1288 | |
duke@1 | 1289 | /** BracketsSuffixExpr = "." CLASS |
duke@1 | 1290 | * BracketsSuffixType = |
duke@1 | 1291 | */ |
duke@1 | 1292 | JCExpression bracketsSuffix(JCExpression t) { |
duke@1 | 1293 | if ((mode & EXPR) != 0 && S.token() == DOT) { |
duke@1 | 1294 | mode = EXPR; |
duke@1 | 1295 | int pos = S.pos(); |
duke@1 | 1296 | S.nextToken(); |
duke@1 | 1297 | accept(CLASS); |
duke@1 | 1298 | if (S.pos() == errorEndPos) { |
duke@1 | 1299 | // error recovery |
duke@1 | 1300 | Name name = null; |
duke@1 | 1301 | if (S.token() == IDENTIFIER) { |
duke@1 | 1302 | name = S.name(); |
duke@1 | 1303 | S.nextToken(); |
duke@1 | 1304 | } else { |
duke@1 | 1305 | name = names.error; |
duke@1 | 1306 | } |
duke@1 | 1307 | t = F.at(pos).Erroneous(List.<JCTree>of(toP(F.at(pos).Select(t, name)))); |
duke@1 | 1308 | } else { |
duke@1 | 1309 | t = toP(F.at(pos).Select(t, names._class)); |
duke@1 | 1310 | } |
duke@1 | 1311 | } else if ((mode & TYPE) != 0) { |
duke@1 | 1312 | mode = TYPE; |
duke@1 | 1313 | } else { |
duke@1 | 1314 | syntaxError(S.pos(), "dot.class.expected"); |
duke@1 | 1315 | } |
duke@1 | 1316 | return t; |
duke@1 | 1317 | } |
duke@1 | 1318 | |
duke@1 | 1319 | /** Creator = Qualident [TypeArguments] ( ArrayCreatorRest | ClassCreatorRest ) |
duke@1 | 1320 | */ |
duke@1 | 1321 | JCExpression creator(int newpos, List<JCExpression> typeArgs) { |
duke@1 | 1322 | switch (S.token()) { |
duke@1 | 1323 | case BYTE: case SHORT: case CHAR: case INT: case LONG: case FLOAT: |
duke@1 | 1324 | case DOUBLE: case BOOLEAN: |
duke@1 | 1325 | if (typeArgs == null) |
duke@1 | 1326 | return arrayCreatorRest(newpos, basicType()); |
duke@1 | 1327 | break; |
duke@1 | 1328 | default: |
duke@1 | 1329 | } |
duke@1 | 1330 | JCExpression t = qualident(); |
duke@1 | 1331 | int oldmode = mode; |
duke@1 | 1332 | mode = TYPE; |
duke@1 | 1333 | if (S.token() == LT) { |
duke@1 | 1334 | checkGenerics(); |
duke@1 | 1335 | t = typeArguments(t); |
duke@1 | 1336 | } |
duke@1 | 1337 | while (S.token() == DOT) { |
duke@1 | 1338 | int pos = S.pos(); |
duke@1 | 1339 | S.nextToken(); |
duke@1 | 1340 | t = toP(F.at(pos).Select(t, ident())); |
duke@1 | 1341 | if (S.token() == LT) { |
duke@1 | 1342 | checkGenerics(); |
duke@1 | 1343 | t = typeArguments(t); |
duke@1 | 1344 | } |
duke@1 | 1345 | } |
duke@1 | 1346 | mode = oldmode; |
duke@1 | 1347 | if (S.token() == LBRACKET) { |
duke@1 | 1348 | JCExpression e = arrayCreatorRest(newpos, t); |
duke@1 | 1349 | if (typeArgs != null) { |
duke@1 | 1350 | int pos = newpos; |
duke@1 | 1351 | if (!typeArgs.isEmpty() && typeArgs.head.pos != Position.NOPOS) { |
duke@1 | 1352 | // note: this should always happen but we should |
duke@1 | 1353 | // not rely on this as the parser is continuously |
duke@1 | 1354 | // modified to improve error recovery. |
duke@1 | 1355 | pos = typeArgs.head.pos; |
duke@1 | 1356 | } |
duke@1 | 1357 | setErrorEndPos(S.prevEndPos()); |
duke@1 | 1358 | reportSyntaxError(pos, "cannot.create.array.with.type.arguments"); |
duke@1 | 1359 | return toP(F.at(newpos).Erroneous(typeArgs.prepend(e))); |
duke@1 | 1360 | } |
duke@1 | 1361 | return e; |
duke@1 | 1362 | } else if (S.token() == LPAREN) { |
duke@1 | 1363 | return classCreatorRest(newpos, null, typeArgs, t); |
duke@1 | 1364 | } else { |
duke@1 | 1365 | reportSyntaxError(S.pos(), "expected2", |
mcimadamore@80 | 1366 | LPAREN, LBRACKET); |
duke@1 | 1367 | t = toP(F.at(newpos).NewClass(null, typeArgs, t, List.<JCExpression>nil(), null)); |
duke@1 | 1368 | return toP(F.at(newpos).Erroneous(List.<JCTree>of(t))); |
duke@1 | 1369 | } |
duke@1 | 1370 | } |
duke@1 | 1371 | |
duke@1 | 1372 | /** InnerCreator = Ident [TypeArguments] ClassCreatorRest |
duke@1 | 1373 | */ |
duke@1 | 1374 | JCExpression innerCreator(int newpos, List<JCExpression> typeArgs, JCExpression encl) { |
duke@1 | 1375 | JCExpression t = toP(F.at(S.pos()).Ident(ident())); |
duke@1 | 1376 | if (S.token() == LT) { |
duke@1 | 1377 | checkGenerics(); |
duke@1 | 1378 | t = typeArguments(t); |
duke@1 | 1379 | } |
duke@1 | 1380 | return classCreatorRest(newpos, encl, typeArgs, t); |
duke@1 | 1381 | } |
duke@1 | 1382 | |
duke@1 | 1383 | /** ArrayCreatorRest = "[" ( "]" BracketsOpt ArrayInitializer |
duke@1 | 1384 | * | Expression "]" {"[" Expression "]"} BracketsOpt ) |
duke@1 | 1385 | */ |
duke@1 | 1386 | JCExpression arrayCreatorRest(int newpos, JCExpression elemtype) { |
duke@1 | 1387 | accept(LBRACKET); |
duke@1 | 1388 | if (S.token() == RBRACKET) { |
duke@1 | 1389 | accept(RBRACKET); |
duke@1 | 1390 | elemtype = bracketsOpt(elemtype); |
duke@1 | 1391 | if (S.token() == LBRACE) { |
duke@1 | 1392 | return arrayInitializer(newpos, elemtype); |
duke@1 | 1393 | } else { |
duke@1 | 1394 | return syntaxError(S.pos(), "array.dimension.missing"); |
duke@1 | 1395 | } |
duke@1 | 1396 | } else { |
duke@1 | 1397 | ListBuffer<JCExpression> dims = new ListBuffer<JCExpression>(); |
jjg@111 | 1398 | dims.append(parseExpression()); |
duke@1 | 1399 | accept(RBRACKET); |
duke@1 | 1400 | while (S.token() == LBRACKET) { |
duke@1 | 1401 | int pos = S.pos(); |
duke@1 | 1402 | S.nextToken(); |
duke@1 | 1403 | if (S.token() == RBRACKET) { |
duke@1 | 1404 | elemtype = bracketsOptCont(elemtype, pos); |
duke@1 | 1405 | } else { |
jjg@111 | 1406 | dims.append(parseExpression()); |
duke@1 | 1407 | accept(RBRACKET); |
duke@1 | 1408 | } |
duke@1 | 1409 | } |
duke@1 | 1410 | return toP(F.at(newpos).NewArray(elemtype, dims.toList(), null)); |
duke@1 | 1411 | } |
duke@1 | 1412 | } |
duke@1 | 1413 | |
duke@1 | 1414 | /** ClassCreatorRest = Arguments [ClassBody] |
duke@1 | 1415 | */ |
duke@1 | 1416 | JCExpression classCreatorRest(int newpos, |
duke@1 | 1417 | JCExpression encl, |
duke@1 | 1418 | List<JCExpression> typeArgs, |
duke@1 | 1419 | JCExpression t) |
duke@1 | 1420 | { |
duke@1 | 1421 | List<JCExpression> args = arguments(); |
duke@1 | 1422 | JCClassDecl body = null; |
duke@1 | 1423 | if (S.token() == LBRACE) { |
duke@1 | 1424 | int pos = S.pos(); |
duke@1 | 1425 | List<JCTree> defs = classOrInterfaceBody(names.empty, false); |
duke@1 | 1426 | JCModifiers mods = F.at(Position.NOPOS).Modifiers(0); |
duke@1 | 1427 | body = toP(F.at(pos).AnonymousClassDef(mods, defs)); |
duke@1 | 1428 | } |
duke@1 | 1429 | return toP(F.at(newpos).NewClass(encl, typeArgs, t, args, body)); |
duke@1 | 1430 | } |
duke@1 | 1431 | |
duke@1 | 1432 | /** ArrayInitializer = "{" [VariableInitializer {"," VariableInitializer}] [","] "}" |
duke@1 | 1433 | */ |
duke@1 | 1434 | JCExpression arrayInitializer(int newpos, JCExpression t) { |
duke@1 | 1435 | accept(LBRACE); |
duke@1 | 1436 | ListBuffer<JCExpression> elems = new ListBuffer<JCExpression>(); |
duke@1 | 1437 | if (S.token() == COMMA) { |
duke@1 | 1438 | S.nextToken(); |
duke@1 | 1439 | } else if (S.token() != RBRACE) { |
duke@1 | 1440 | elems.append(variableInitializer()); |
duke@1 | 1441 | while (S.token() == COMMA) { |
duke@1 | 1442 | S.nextToken(); |
duke@1 | 1443 | if (S.token() == RBRACE) break; |
duke@1 | 1444 | elems.append(variableInitializer()); |
duke@1 | 1445 | } |
duke@1 | 1446 | } |
duke@1 | 1447 | accept(RBRACE); |
duke@1 | 1448 | return toP(F.at(newpos).NewArray(t, List.<JCExpression>nil(), elems.toList())); |
duke@1 | 1449 | } |
duke@1 | 1450 | |
duke@1 | 1451 | /** VariableInitializer = ArrayInitializer | Expression |
duke@1 | 1452 | */ |
duke@1 | 1453 | public JCExpression variableInitializer() { |
jjg@111 | 1454 | return S.token() == LBRACE ? arrayInitializer(S.pos(), null) : parseExpression(); |
duke@1 | 1455 | } |
duke@1 | 1456 | |
duke@1 | 1457 | /** ParExpression = "(" Expression ")" |
duke@1 | 1458 | */ |
duke@1 | 1459 | JCExpression parExpression() { |
duke@1 | 1460 | accept(LPAREN); |
jjg@111 | 1461 | JCExpression t = parseExpression(); |
duke@1 | 1462 | accept(RPAREN); |
duke@1 | 1463 | return t; |
duke@1 | 1464 | } |
duke@1 | 1465 | |
duke@1 | 1466 | /** Block = "{" BlockStatements "}" |
duke@1 | 1467 | */ |
duke@1 | 1468 | JCBlock block(int pos, long flags) { |
duke@1 | 1469 | accept(LBRACE); |
duke@1 | 1470 | List<JCStatement> stats = blockStatements(); |
duke@1 | 1471 | JCBlock t = F.at(pos).Block(flags, stats); |
duke@1 | 1472 | while (S.token() == CASE || S.token() == DEFAULT) { |
mcimadamore@80 | 1473 | syntaxError("orphaned", S.token()); |
duke@1 | 1474 | switchBlockStatementGroups(); |
duke@1 | 1475 | } |
duke@1 | 1476 | // the Block node has a field "endpos" for first char of last token, which is |
duke@1 | 1477 | // usually but not necessarily the last char of the last token. |
duke@1 | 1478 | t.endpos = S.pos(); |
duke@1 | 1479 | accept(RBRACE); |
duke@1 | 1480 | return toP(t); |
duke@1 | 1481 | } |
duke@1 | 1482 | |
duke@1 | 1483 | public JCBlock block() { |
duke@1 | 1484 | return block(S.pos(), 0); |
duke@1 | 1485 | } |
duke@1 | 1486 | |
duke@1 | 1487 | /** BlockStatements = { BlockStatement } |
duke@1 | 1488 | * BlockStatement = LocalVariableDeclarationStatement |
duke@1 | 1489 | * | ClassOrInterfaceOrEnumDeclaration |
duke@1 | 1490 | * | [Ident ":"] Statement |
duke@1 | 1491 | * LocalVariableDeclarationStatement |
duke@1 | 1492 | * = { FINAL | '@' Annotation } Type VariableDeclarators ";" |
duke@1 | 1493 | */ |
duke@1 | 1494 | @SuppressWarnings("fallthrough") |
duke@1 | 1495 | List<JCStatement> blockStatements() { |
duke@1 | 1496 | //todo: skip to anchor on error(?) |
duke@1 | 1497 | int lastErrPos = -1; |
duke@1 | 1498 | ListBuffer<JCStatement> stats = new ListBuffer<JCStatement>(); |
duke@1 | 1499 | while (true) { |
duke@1 | 1500 | int pos = S.pos(); |
duke@1 | 1501 | switch (S.token()) { |
duke@1 | 1502 | case RBRACE: case CASE: case DEFAULT: case EOF: |
duke@1 | 1503 | return stats.toList(); |
duke@1 | 1504 | case LBRACE: case IF: case FOR: case WHILE: case DO: case TRY: |
duke@1 | 1505 | case SWITCH: case SYNCHRONIZED: case RETURN: case THROW: case BREAK: |
duke@1 | 1506 | case CONTINUE: case SEMI: case ELSE: case FINALLY: case CATCH: |
jjg@111 | 1507 | stats.append(parseStatement()); |
duke@1 | 1508 | break; |
duke@1 | 1509 | case MONKEYS_AT: |
duke@1 | 1510 | case FINAL: { |
duke@1 | 1511 | String dc = S.docComment(); |
duke@1 | 1512 | JCModifiers mods = modifiersOpt(); |
duke@1 | 1513 | if (S.token() == INTERFACE || |
duke@1 | 1514 | S.token() == CLASS || |
duke@1 | 1515 | allowEnums && S.token() == ENUM) { |
duke@1 | 1516 | stats.append(classOrInterfaceOrEnumDeclaration(mods, dc)); |
duke@1 | 1517 | } else { |
jjg@111 | 1518 | JCExpression t = parseType(); |
duke@1 | 1519 | stats.appendList(variableDeclarators(mods, t, |
duke@1 | 1520 | new ListBuffer<JCStatement>())); |
duke@1 | 1521 | // A "LocalVariableDeclarationStatement" subsumes the terminating semicolon |
duke@1 | 1522 | storeEnd(stats.elems.last(), S.endPos()); |
duke@1 | 1523 | accept(SEMI); |
duke@1 | 1524 | } |
duke@1 | 1525 | break; |
duke@1 | 1526 | } |
duke@1 | 1527 | case ABSTRACT: case STRICTFP: { |
duke@1 | 1528 | String dc = S.docComment(); |
duke@1 | 1529 | JCModifiers mods = modifiersOpt(); |
duke@1 | 1530 | stats.append(classOrInterfaceOrEnumDeclaration(mods, dc)); |
duke@1 | 1531 | break; |
duke@1 | 1532 | } |
duke@1 | 1533 | case INTERFACE: |
duke@1 | 1534 | case CLASS: |
duke@1 | 1535 | stats.append(classOrInterfaceOrEnumDeclaration(modifiersOpt(), |
duke@1 | 1536 | S.docComment())); |
duke@1 | 1537 | break; |
duke@1 | 1538 | case ENUM: |
duke@1 | 1539 | case ASSERT: |
duke@1 | 1540 | if (allowEnums && S.token() == ENUM) { |
duke@1 | 1541 | log.error(S.pos(), "local.enum"); |
duke@1 | 1542 | stats. |
duke@1 | 1543 | append(classOrInterfaceOrEnumDeclaration(modifiersOpt(), |
duke@1 | 1544 | S.docComment())); |
duke@1 | 1545 | break; |
duke@1 | 1546 | } else if (allowAsserts && S.token() == ASSERT) { |
jjg@111 | 1547 | stats.append(parseStatement()); |
duke@1 | 1548 | break; |
duke@1 | 1549 | } |
duke@1 | 1550 | /* fall through to default */ |
duke@1 | 1551 | default: |
duke@1 | 1552 | Name name = S.name(); |
duke@1 | 1553 | JCExpression t = term(EXPR | TYPE); |
duke@1 | 1554 | if (S.token() == COLON && t.getTag() == JCTree.IDENT) { |
duke@1 | 1555 | S.nextToken(); |
jjg@111 | 1556 | JCStatement stat = parseStatement(); |
duke@1 | 1557 | stats.append(F.at(pos).Labelled(name, stat)); |
duke@1 | 1558 | } else if ((lastmode & TYPE) != 0 && |
duke@1 | 1559 | (S.token() == IDENTIFIER || |
duke@1 | 1560 | S.token() == ASSERT || |
duke@1 | 1561 | S.token() == ENUM)) { |
duke@1 | 1562 | pos = S.pos(); |
duke@1 | 1563 | JCModifiers mods = F.at(Position.NOPOS).Modifiers(0); |
duke@1 | 1564 | F.at(pos); |
duke@1 | 1565 | stats.appendList(variableDeclarators(mods, t, |
duke@1 | 1566 | new ListBuffer<JCStatement>())); |
duke@1 | 1567 | // A "LocalVariableDeclarationStatement" subsumes the terminating semicolon |
duke@1 | 1568 | storeEnd(stats.elems.last(), S.endPos()); |
duke@1 | 1569 | accept(SEMI); |
duke@1 | 1570 | } else { |
duke@1 | 1571 | // This Exec is an "ExpressionStatement"; it subsumes the terminating semicolon |
duke@1 | 1572 | stats.append(to(F.at(pos).Exec(checkExprStat(t)))); |
duke@1 | 1573 | accept(SEMI); |
duke@1 | 1574 | } |
duke@1 | 1575 | } |
duke@1 | 1576 | |
duke@1 | 1577 | // error recovery |
duke@1 | 1578 | if (S.pos() == lastErrPos) |
duke@1 | 1579 | return stats.toList(); |
duke@1 | 1580 | if (S.pos() <= errorEndPos) { |
duke@1 | 1581 | skip(false, true, true, true); |
duke@1 | 1582 | lastErrPos = S.pos(); |
duke@1 | 1583 | } |
duke@1 | 1584 | |
duke@1 | 1585 | // ensure no dangling /** @deprecated */ active |
duke@1 | 1586 | S.resetDeprecatedFlag(); |
duke@1 | 1587 | } |
duke@1 | 1588 | } |
duke@1 | 1589 | |
duke@1 | 1590 | /** Statement = |
duke@1 | 1591 | * Block |
duke@1 | 1592 | * | IF ParExpression Statement [ELSE Statement] |
duke@1 | 1593 | * | FOR "(" ForInitOpt ";" [Expression] ";" ForUpdateOpt ")" Statement |
duke@1 | 1594 | * | FOR "(" FormalParameter : Expression ")" Statement |
duke@1 | 1595 | * | WHILE ParExpression Statement |
duke@1 | 1596 | * | DO Statement WHILE ParExpression ";" |
duke@1 | 1597 | * | TRY Block ( Catches | [Catches] FinallyPart ) |
duke@1 | 1598 | * | SWITCH ParExpression "{" SwitchBlockStatementGroups "}" |
duke@1 | 1599 | * | SYNCHRONIZED ParExpression Block |
duke@1 | 1600 | * | RETURN [Expression] ";" |
duke@1 | 1601 | * | THROW Expression ";" |
duke@1 | 1602 | * | BREAK [Ident] ";" |
duke@1 | 1603 | * | CONTINUE [Ident] ";" |
duke@1 | 1604 | * | ASSERT Expression [ ":" Expression ] ";" |
duke@1 | 1605 | * | ";" |
duke@1 | 1606 | * | ExpressionStatement |
duke@1 | 1607 | * | Ident ":" Statement |
duke@1 | 1608 | */ |
duke@1 | 1609 | @SuppressWarnings("fallthrough") |
jjg@111 | 1610 | public JCStatement parseStatement() { |
duke@1 | 1611 | int pos = S.pos(); |
duke@1 | 1612 | switch (S.token()) { |
duke@1 | 1613 | case LBRACE: |
duke@1 | 1614 | return block(); |
duke@1 | 1615 | case IF: { |
duke@1 | 1616 | S.nextToken(); |
duke@1 | 1617 | JCExpression cond = parExpression(); |
jjg@111 | 1618 | JCStatement thenpart = parseStatement(); |
duke@1 | 1619 | JCStatement elsepart = null; |
duke@1 | 1620 | if (S.token() == ELSE) { |
duke@1 | 1621 | S.nextToken(); |
jjg@111 | 1622 | elsepart = parseStatement(); |
duke@1 | 1623 | } |
duke@1 | 1624 | return F.at(pos).If(cond, thenpart, elsepart); |
duke@1 | 1625 | } |
duke@1 | 1626 | case FOR: { |
duke@1 | 1627 | S.nextToken(); |
duke@1 | 1628 | accept(LPAREN); |
duke@1 | 1629 | List<JCStatement> inits = S.token() == SEMI ? List.<JCStatement>nil() : forInit(); |
duke@1 | 1630 | if (inits.length() == 1 && |
duke@1 | 1631 | inits.head.getTag() == JCTree.VARDEF && |
duke@1 | 1632 | ((JCVariableDecl) inits.head).init == null && |
duke@1 | 1633 | S.token() == COLON) { |
duke@1 | 1634 | checkForeach(); |
duke@1 | 1635 | JCVariableDecl var = (JCVariableDecl)inits.head; |
duke@1 | 1636 | accept(COLON); |
jjg@111 | 1637 | JCExpression expr = parseExpression(); |
duke@1 | 1638 | accept(RPAREN); |
jjg@111 | 1639 | JCStatement body = parseStatement(); |
duke@1 | 1640 | return F.at(pos).ForeachLoop(var, expr, body); |
duke@1 | 1641 | } else { |
duke@1 | 1642 | accept(SEMI); |
jjg@111 | 1643 | JCExpression cond = S.token() == SEMI ? null : parseExpression(); |
duke@1 | 1644 | accept(SEMI); |
duke@1 | 1645 | List<JCExpressionStatement> steps = S.token() == RPAREN ? List.<JCExpressionStatement>nil() : forUpdate(); |
duke@1 | 1646 | accept(RPAREN); |
jjg@111 | 1647 | JCStatement body = parseStatement(); |
duke@1 | 1648 | return F.at(pos).ForLoop(inits, cond, steps, body); |
duke@1 | 1649 | } |
duke@1 | 1650 | } |
duke@1 | 1651 | case WHILE: { |
duke@1 | 1652 | S.nextToken(); |
duke@1 | 1653 | JCExpression cond = parExpression(); |
jjg@111 | 1654 | JCStatement body = parseStatement(); |
duke@1 | 1655 | return F.at(pos).WhileLoop(cond, body); |
duke@1 | 1656 | } |
duke@1 | 1657 | case DO: { |
duke@1 | 1658 | S.nextToken(); |
jjg@111 | 1659 | JCStatement body = parseStatement(); |
duke@1 | 1660 | accept(WHILE); |
duke@1 | 1661 | JCExpression cond = parExpression(); |
duke@1 | 1662 | JCDoWhileLoop t = to(F.at(pos).DoLoop(body, cond)); |
duke@1 | 1663 | accept(SEMI); |
duke@1 | 1664 | return t; |
duke@1 | 1665 | } |
duke@1 | 1666 | case TRY: { |
duke@1 | 1667 | S.nextToken(); |
duke@1 | 1668 | JCBlock body = block(); |
duke@1 | 1669 | ListBuffer<JCCatch> catchers = new ListBuffer<JCCatch>(); |
duke@1 | 1670 | JCBlock finalizer = null; |
duke@1 | 1671 | if (S.token() == CATCH || S.token() == FINALLY) { |
duke@1 | 1672 | while (S.token() == CATCH) catchers.append(catchClause()); |
duke@1 | 1673 | if (S.token() == FINALLY) { |
duke@1 | 1674 | S.nextToken(); |
duke@1 | 1675 | finalizer = block(); |
duke@1 | 1676 | } |
duke@1 | 1677 | } else { |
duke@1 | 1678 | log.error(pos, "try.without.catch.or.finally"); |
duke@1 | 1679 | } |
duke@1 | 1680 | return F.at(pos).Try(body, catchers.toList(), finalizer); |
duke@1 | 1681 | } |
duke@1 | 1682 | case SWITCH: { |
duke@1 | 1683 | S.nextToken(); |
duke@1 | 1684 | JCExpression selector = parExpression(); |
duke@1 | 1685 | accept(LBRACE); |
duke@1 | 1686 | List<JCCase> cases = switchBlockStatementGroups(); |
duke@1 | 1687 | JCSwitch t = to(F.at(pos).Switch(selector, cases)); |
duke@1 | 1688 | accept(RBRACE); |
duke@1 | 1689 | return t; |
duke@1 | 1690 | } |
duke@1 | 1691 | case SYNCHRONIZED: { |
duke@1 | 1692 | S.nextToken(); |
duke@1 | 1693 | JCExpression lock = parExpression(); |
duke@1 | 1694 | JCBlock body = block(); |
duke@1 | 1695 | return F.at(pos).Synchronized(lock, body); |
duke@1 | 1696 | } |
duke@1 | 1697 | case RETURN: { |
duke@1 | 1698 | S.nextToken(); |
jjg@111 | 1699 | JCExpression result = S.token() == SEMI ? null : parseExpression(); |
duke@1 | 1700 | JCReturn t = to(F.at(pos).Return(result)); |
duke@1 | 1701 | accept(SEMI); |
duke@1 | 1702 | return t; |
duke@1 | 1703 | } |
duke@1 | 1704 | case THROW: { |
duke@1 | 1705 | S.nextToken(); |
jjg@111 | 1706 | JCExpression exc = parseExpression(); |
duke@1 | 1707 | JCThrow t = to(F.at(pos).Throw(exc)); |
duke@1 | 1708 | accept(SEMI); |
duke@1 | 1709 | return t; |
duke@1 | 1710 | } |
duke@1 | 1711 | case BREAK: { |
duke@1 | 1712 | S.nextToken(); |
duke@1 | 1713 | Name label = (S.token() == IDENTIFIER || S.token() == ASSERT || S.token() == ENUM) ? ident() : null; |
duke@1 | 1714 | JCBreak t = to(F.at(pos).Break(label)); |
duke@1 | 1715 | accept(SEMI); |
duke@1 | 1716 | return t; |
duke@1 | 1717 | } |
duke@1 | 1718 | case CONTINUE: { |
duke@1 | 1719 | S.nextToken(); |
duke@1 | 1720 | Name label = (S.token() == IDENTIFIER || S.token() == ASSERT || S.token() == ENUM) ? ident() : null; |
duke@1 | 1721 | JCContinue t = to(F.at(pos).Continue(label)); |
duke@1 | 1722 | accept(SEMI); |
duke@1 | 1723 | return t; |
duke@1 | 1724 | } |
duke@1 | 1725 | case SEMI: |
duke@1 | 1726 | S.nextToken(); |
duke@1 | 1727 | return toP(F.at(pos).Skip()); |
duke@1 | 1728 | case ELSE: |
duke@1 | 1729 | return toP(F.Exec(syntaxError("else.without.if"))); |
duke@1 | 1730 | case FINALLY: |
duke@1 | 1731 | return toP(F.Exec(syntaxError("finally.without.try"))); |
duke@1 | 1732 | case CATCH: |
duke@1 | 1733 | return toP(F.Exec(syntaxError("catch.without.try"))); |
duke@1 | 1734 | case ASSERT: { |
duke@1 | 1735 | if (allowAsserts && S.token() == ASSERT) { |
duke@1 | 1736 | S.nextToken(); |
jjg@111 | 1737 | JCExpression assertion = parseExpression(); |
duke@1 | 1738 | JCExpression message = null; |
duke@1 | 1739 | if (S.token() == COLON) { |
duke@1 | 1740 | S.nextToken(); |
jjg@111 | 1741 | message = parseExpression(); |
duke@1 | 1742 | } |
duke@1 | 1743 | JCAssert t = to(F.at(pos).Assert(assertion, message)); |
duke@1 | 1744 | accept(SEMI); |
duke@1 | 1745 | return t; |
duke@1 | 1746 | } |
duke@1 | 1747 | /* else fall through to default case */ |
duke@1 | 1748 | } |
duke@1 | 1749 | case ENUM: |
duke@1 | 1750 | default: |
duke@1 | 1751 | Name name = S.name(); |
jjg@111 | 1752 | JCExpression expr = parseExpression(); |
duke@1 | 1753 | if (S.token() == COLON && expr.getTag() == JCTree.IDENT) { |
duke@1 | 1754 | S.nextToken(); |
jjg@111 | 1755 | JCStatement stat = parseStatement(); |
duke@1 | 1756 | return F.at(pos).Labelled(name, stat); |
duke@1 | 1757 | } else { |
duke@1 | 1758 | // This Exec is an "ExpressionStatement"; it subsumes the terminating semicolon |
duke@1 | 1759 | JCExpressionStatement stat = to(F.at(pos).Exec(checkExprStat(expr))); |
duke@1 | 1760 | accept(SEMI); |
duke@1 | 1761 | return stat; |
duke@1 | 1762 | } |
duke@1 | 1763 | } |
duke@1 | 1764 | } |
duke@1 | 1765 | |
duke@1 | 1766 | /** CatchClause = CATCH "(" FormalParameter ")" Block |
duke@1 | 1767 | */ |
duke@1 | 1768 | JCCatch catchClause() { |
duke@1 | 1769 | int pos = S.pos(); |
duke@1 | 1770 | accept(CATCH); |
duke@1 | 1771 | accept(LPAREN); |
duke@1 | 1772 | JCVariableDecl formal = |
duke@1 | 1773 | variableDeclaratorId(optFinal(Flags.PARAMETER), |
duke@1 | 1774 | qualident()); |
duke@1 | 1775 | accept(RPAREN); |
duke@1 | 1776 | JCBlock body = block(); |
duke@1 | 1777 | return F.at(pos).Catch(formal, body); |
duke@1 | 1778 | } |
duke@1 | 1779 | |
duke@1 | 1780 | /** SwitchBlockStatementGroups = { SwitchBlockStatementGroup } |
duke@1 | 1781 | * SwitchBlockStatementGroup = SwitchLabel BlockStatements |
duke@1 | 1782 | * SwitchLabel = CASE ConstantExpression ":" | DEFAULT ":" |
duke@1 | 1783 | */ |
duke@1 | 1784 | List<JCCase> switchBlockStatementGroups() { |
duke@1 | 1785 | ListBuffer<JCCase> cases = new ListBuffer<JCCase>(); |
duke@1 | 1786 | while (true) { |
duke@1 | 1787 | int pos = S.pos(); |
duke@1 | 1788 | switch (S.token()) { |
duke@1 | 1789 | case CASE: { |
duke@1 | 1790 | S.nextToken(); |
jjg@111 | 1791 | JCExpression pat = parseExpression(); |
duke@1 | 1792 | accept(COLON); |
duke@1 | 1793 | List<JCStatement> stats = blockStatements(); |
duke@1 | 1794 | JCCase c = F.at(pos).Case(pat, stats); |
duke@1 | 1795 | if (stats.isEmpty()) |
duke@1 | 1796 | storeEnd(c, S.prevEndPos()); |
duke@1 | 1797 | cases.append(c); |
duke@1 | 1798 | break; |
duke@1 | 1799 | } |
duke@1 | 1800 | case DEFAULT: { |
duke@1 | 1801 | S.nextToken(); |
duke@1 | 1802 | accept(COLON); |
duke@1 | 1803 | List<JCStatement> stats = blockStatements(); |
duke@1 | 1804 | JCCase c = F.at(pos).Case(null, stats); |
duke@1 | 1805 | if (stats.isEmpty()) |
duke@1 | 1806 | storeEnd(c, S.prevEndPos()); |
duke@1 | 1807 | cases.append(c); |
duke@1 | 1808 | break; |
duke@1 | 1809 | } |
duke@1 | 1810 | case RBRACE: case EOF: |
duke@1 | 1811 | return cases.toList(); |
duke@1 | 1812 | default: |
duke@1 | 1813 | S.nextToken(); // to ensure progress |
duke@1 | 1814 | syntaxError(pos, "expected3", |
mcimadamore@80 | 1815 | CASE, DEFAULT, RBRACE); |
duke@1 | 1816 | } |
duke@1 | 1817 | } |
duke@1 | 1818 | } |
duke@1 | 1819 | |
duke@1 | 1820 | /** MoreStatementExpressions = { COMMA StatementExpression } |
duke@1 | 1821 | */ |
duke@1 | 1822 | <T extends ListBuffer<? super JCExpressionStatement>> T moreStatementExpressions(int pos, |
duke@1 | 1823 | JCExpression first, |
duke@1 | 1824 | T stats) { |
duke@1 | 1825 | // This Exec is a "StatementExpression"; it subsumes no terminating token |
duke@1 | 1826 | stats.append(toP(F.at(pos).Exec(checkExprStat(first)))); |
duke@1 | 1827 | while (S.token() == COMMA) { |
duke@1 | 1828 | S.nextToken(); |
duke@1 | 1829 | pos = S.pos(); |
jjg@111 | 1830 | JCExpression t = parseExpression(); |
duke@1 | 1831 | // This Exec is a "StatementExpression"; it subsumes no terminating token |
duke@1 | 1832 | stats.append(toP(F.at(pos).Exec(checkExprStat(t)))); |
duke@1 | 1833 | } |
duke@1 | 1834 | return stats; |
duke@1 | 1835 | } |
duke@1 | 1836 | |
duke@1 | 1837 | /** ForInit = StatementExpression MoreStatementExpressions |
duke@1 | 1838 | * | { FINAL | '@' Annotation } Type VariableDeclarators |
duke@1 | 1839 | */ |
duke@1 | 1840 | List<JCStatement> forInit() { |
duke@1 | 1841 | ListBuffer<JCStatement> stats = lb(); |
duke@1 | 1842 | int pos = S.pos(); |
duke@1 | 1843 | if (S.token() == FINAL || S.token() == MONKEYS_AT) { |
jjg@111 | 1844 | return variableDeclarators(optFinal(0), parseType(), stats).toList(); |
duke@1 | 1845 | } else { |
duke@1 | 1846 | JCExpression t = term(EXPR | TYPE); |
duke@1 | 1847 | if ((lastmode & TYPE) != 0 && |
duke@1 | 1848 | (S.token() == IDENTIFIER || S.token() == ASSERT || S.token() == ENUM)) |
duke@1 | 1849 | return variableDeclarators(modifiersOpt(), t, stats).toList(); |
duke@1 | 1850 | else |
duke@1 | 1851 | return moreStatementExpressions(pos, t, stats).toList(); |
duke@1 | 1852 | } |
duke@1 | 1853 | } |
duke@1 | 1854 | |
duke@1 | 1855 | /** ForUpdate = StatementExpression MoreStatementExpressions |
duke@1 | 1856 | */ |
duke@1 | 1857 | List<JCExpressionStatement> forUpdate() { |
duke@1 | 1858 | return moreStatementExpressions(S.pos(), |
jjg@111 | 1859 | parseExpression(), |
duke@1 | 1860 | new ListBuffer<JCExpressionStatement>()).toList(); |
duke@1 | 1861 | } |
duke@1 | 1862 | |
duke@1 | 1863 | /** AnnotationsOpt = { '@' Annotation } |
duke@1 | 1864 | */ |
duke@1 | 1865 | List<JCAnnotation> annotationsOpt() { |
duke@1 | 1866 | if (S.token() != MONKEYS_AT) return List.nil(); // optimization |
duke@1 | 1867 | ListBuffer<JCAnnotation> buf = new ListBuffer<JCAnnotation>(); |
duke@1 | 1868 | while (S.token() == MONKEYS_AT) { |
duke@1 | 1869 | int pos = S.pos(); |
duke@1 | 1870 | S.nextToken(); |
duke@1 | 1871 | buf.append(annotation(pos)); |
duke@1 | 1872 | } |
duke@1 | 1873 | return buf.toList(); |
duke@1 | 1874 | } |
duke@1 | 1875 | |
duke@1 | 1876 | /** ModifiersOpt = { Modifier } |
duke@1 | 1877 | * Modifier = PUBLIC | PROTECTED | PRIVATE | STATIC | ABSTRACT | FINAL |
duke@1 | 1878 | * | NATIVE | SYNCHRONIZED | TRANSIENT | VOLATILE | "@" |
duke@1 | 1879 | * | "@" Annotation |
duke@1 | 1880 | */ |
duke@1 | 1881 | JCModifiers modifiersOpt() { |
duke@1 | 1882 | return modifiersOpt(null); |
duke@1 | 1883 | } |
duke@1 | 1884 | JCModifiers modifiersOpt(JCModifiers partial) { |
duke@1 | 1885 | long flags = (partial == null) ? 0 : partial.flags; |
duke@1 | 1886 | if (S.deprecatedFlag()) { |
duke@1 | 1887 | flags |= Flags.DEPRECATED; |
duke@1 | 1888 | S.resetDeprecatedFlag(); |
duke@1 | 1889 | } |
duke@1 | 1890 | ListBuffer<JCAnnotation> annotations = new ListBuffer<JCAnnotation>(); |
duke@1 | 1891 | if (partial != null) annotations.appendList(partial.annotations); |
duke@1 | 1892 | int pos = S.pos(); |
duke@1 | 1893 | int lastPos = Position.NOPOS; |
duke@1 | 1894 | loop: |
duke@1 | 1895 | while (true) { |
duke@1 | 1896 | long flag; |
duke@1 | 1897 | switch (S.token()) { |
duke@1 | 1898 | case PRIVATE : flag = Flags.PRIVATE; break; |
duke@1 | 1899 | case PROTECTED : flag = Flags.PROTECTED; break; |
duke@1 | 1900 | case PUBLIC : flag = Flags.PUBLIC; break; |
duke@1 | 1901 | case STATIC : flag = Flags.STATIC; break; |
duke@1 | 1902 | case TRANSIENT : flag = Flags.TRANSIENT; break; |
duke@1 | 1903 | case FINAL : flag = Flags.FINAL; break; |
duke@1 | 1904 | case ABSTRACT : flag = Flags.ABSTRACT; break; |
duke@1 | 1905 | case NATIVE : flag = Flags.NATIVE; break; |
duke@1 | 1906 | case VOLATILE : flag = Flags.VOLATILE; break; |
duke@1 | 1907 | case SYNCHRONIZED: flag = Flags.SYNCHRONIZED; break; |
duke@1 | 1908 | case STRICTFP : flag = Flags.STRICTFP; break; |
duke@1 | 1909 | case MONKEYS_AT : flag = Flags.ANNOTATION; break; |
duke@1 | 1910 | default: break loop; |
duke@1 | 1911 | } |
duke@1 | 1912 | if ((flags & flag) != 0) log.error(S.pos(), "repeated.modifier"); |
duke@1 | 1913 | lastPos = S.pos(); |
duke@1 | 1914 | S.nextToken(); |
duke@1 | 1915 | if (flag == Flags.ANNOTATION) { |
duke@1 | 1916 | checkAnnotations(); |
duke@1 | 1917 | if (S.token() != INTERFACE) { |
duke@1 | 1918 | JCAnnotation ann = annotation(lastPos); |
duke@1 | 1919 | // if first modifier is an annotation, set pos to annotation's. |
duke@1 | 1920 | if (flags == 0 && annotations.isEmpty()) |
duke@1 | 1921 | pos = ann.pos; |
duke@1 | 1922 | annotations.append(ann); |
duke@1 | 1923 | lastPos = ann.pos; |
duke@1 | 1924 | flag = 0; |
duke@1 | 1925 | } |
duke@1 | 1926 | } |
duke@1 | 1927 | flags |= flag; |
duke@1 | 1928 | } |
duke@1 | 1929 | switch (S.token()) { |
duke@1 | 1930 | case ENUM: flags |= Flags.ENUM; break; |
duke@1 | 1931 | case INTERFACE: flags |= Flags.INTERFACE; break; |
duke@1 | 1932 | default: break; |
duke@1 | 1933 | } |
duke@1 | 1934 | |
duke@1 | 1935 | /* A modifiers tree with no modifier tokens or annotations |
duke@1 | 1936 | * has no text position. */ |
duke@1 | 1937 | if (flags == 0 && annotations.isEmpty()) |
duke@1 | 1938 | pos = Position.NOPOS; |
duke@1 | 1939 | |
duke@1 | 1940 | JCModifiers mods = F.at(pos).Modifiers(flags, annotations.toList()); |
duke@1 | 1941 | if (pos != Position.NOPOS) |
duke@1 | 1942 | storeEnd(mods, S.prevEndPos()); |
duke@1 | 1943 | return mods; |
duke@1 | 1944 | } |
duke@1 | 1945 | |
duke@1 | 1946 | /** Annotation = "@" Qualident [ "(" AnnotationFieldValues ")" ] |
duke@1 | 1947 | * @param pos position of "@" token |
duke@1 | 1948 | */ |
duke@1 | 1949 | JCAnnotation annotation(int pos) { |
duke@1 | 1950 | // accept(AT); // AT consumed by caller |
duke@1 | 1951 | checkAnnotations(); |
duke@1 | 1952 | JCTree ident = qualident(); |
duke@1 | 1953 | List<JCExpression> fieldValues = annotationFieldValuesOpt(); |
duke@1 | 1954 | JCAnnotation ann = F.at(pos).Annotation(ident, fieldValues); |
duke@1 | 1955 | storeEnd(ann, S.prevEndPos()); |
duke@1 | 1956 | return ann; |
duke@1 | 1957 | } |
duke@1 | 1958 | |
duke@1 | 1959 | List<JCExpression> annotationFieldValuesOpt() { |
duke@1 | 1960 | return (S.token() == LPAREN) ? annotationFieldValues() : List.<JCExpression>nil(); |
duke@1 | 1961 | } |
duke@1 | 1962 | |
duke@1 | 1963 | /** AnnotationFieldValues = "(" [ AnnotationFieldValue { "," AnnotationFieldValue } ] ")" */ |
duke@1 | 1964 | List<JCExpression> annotationFieldValues() { |
duke@1 | 1965 | accept(LPAREN); |
duke@1 | 1966 | ListBuffer<JCExpression> buf = new ListBuffer<JCExpression>(); |
duke@1 | 1967 | if (S.token() != RPAREN) { |
duke@1 | 1968 | buf.append(annotationFieldValue()); |
duke@1 | 1969 | while (S.token() == COMMA) { |
duke@1 | 1970 | S.nextToken(); |
duke@1 | 1971 | buf.append(annotationFieldValue()); |
duke@1 | 1972 | } |
duke@1 | 1973 | } |
duke@1 | 1974 | accept(RPAREN); |
duke@1 | 1975 | return buf.toList(); |
duke@1 | 1976 | } |
duke@1 | 1977 | |
duke@1 | 1978 | /** AnnotationFieldValue = AnnotationValue |
duke@1 | 1979 | * | Identifier "=" AnnotationValue |
duke@1 | 1980 | */ |
duke@1 | 1981 | JCExpression annotationFieldValue() { |
duke@1 | 1982 | if (S.token() == IDENTIFIER) { |
duke@1 | 1983 | mode = EXPR; |
duke@1 | 1984 | JCExpression t1 = term1(); |
duke@1 | 1985 | if (t1.getTag() == JCTree.IDENT && S.token() == EQ) { |
duke@1 | 1986 | int pos = S.pos(); |
duke@1 | 1987 | accept(EQ); |
duke@1 | 1988 | return toP(F.at(pos).Assign(t1, annotationValue())); |
duke@1 | 1989 | } else { |
duke@1 | 1990 | return t1; |
duke@1 | 1991 | } |
duke@1 | 1992 | } |
duke@1 | 1993 | return annotationValue(); |
duke@1 | 1994 | } |
duke@1 | 1995 | |
duke@1 | 1996 | /* AnnotationValue = ConditionalExpression |
duke@1 | 1997 | * | Annotation |
duke@1 | 1998 | * | "{" [ AnnotationValue { "," AnnotationValue } ] "}" |
duke@1 | 1999 | */ |
duke@1 | 2000 | JCExpression annotationValue() { |
duke@1 | 2001 | int pos; |
duke@1 | 2002 | switch (S.token()) { |
duke@1 | 2003 | case MONKEYS_AT: |
duke@1 | 2004 | pos = S.pos(); |
duke@1 | 2005 | S.nextToken(); |
duke@1 | 2006 | return annotation(pos); |
duke@1 | 2007 | case LBRACE: |
duke@1 | 2008 | pos = S.pos(); |
duke@1 | 2009 | accept(LBRACE); |
duke@1 | 2010 | ListBuffer<JCExpression> buf = new ListBuffer<JCExpression>(); |
duke@1 | 2011 | if (S.token() != RBRACE) { |
duke@1 | 2012 | buf.append(annotationValue()); |
duke@1 | 2013 | while (S.token() == COMMA) { |
duke@1 | 2014 | S.nextToken(); |
duke@1 | 2015 | if (S.token() == RPAREN) break; |
duke@1 | 2016 | buf.append(annotationValue()); |
duke@1 | 2017 | } |
duke@1 | 2018 | } |
duke@1 | 2019 | accept(RBRACE); |
duke@1 | 2020 | return toP(F.at(pos).NewArray(null, List.<JCExpression>nil(), buf.toList())); |
duke@1 | 2021 | default: |
duke@1 | 2022 | mode = EXPR; |
duke@1 | 2023 | return term1(); |
duke@1 | 2024 | } |
duke@1 | 2025 | } |
duke@1 | 2026 | |
duke@1 | 2027 | /** VariableDeclarators = VariableDeclarator { "," VariableDeclarator } |
duke@1 | 2028 | */ |
duke@1 | 2029 | public <T extends ListBuffer<? super JCVariableDecl>> T variableDeclarators(JCModifiers mods, |
duke@1 | 2030 | JCExpression type, |
duke@1 | 2031 | T vdefs) |
duke@1 | 2032 | { |
duke@1 | 2033 | return variableDeclaratorsRest(S.pos(), mods, type, ident(), false, null, vdefs); |
duke@1 | 2034 | } |
duke@1 | 2035 | |
duke@1 | 2036 | /** VariableDeclaratorsRest = VariableDeclaratorRest { "," VariableDeclarator } |
duke@1 | 2037 | * ConstantDeclaratorsRest = ConstantDeclaratorRest { "," ConstantDeclarator } |
duke@1 | 2038 | * |
duke@1 | 2039 | * @param reqInit Is an initializer always required? |
duke@1 | 2040 | * @param dc The documentation comment for the variable declarations, or null. |
duke@1 | 2041 | */ |
duke@1 | 2042 | <T extends ListBuffer<? super JCVariableDecl>> T variableDeclaratorsRest(int pos, |
duke@1 | 2043 | JCModifiers mods, |
duke@1 | 2044 | JCExpression type, |
duke@1 | 2045 | Name name, |
duke@1 | 2046 | boolean reqInit, |
duke@1 | 2047 | String dc, |
duke@1 | 2048 | T vdefs) |
duke@1 | 2049 | { |
duke@1 | 2050 | vdefs.append(variableDeclaratorRest(pos, mods, type, name, reqInit, dc)); |
duke@1 | 2051 | while (S.token() == COMMA) { |
duke@1 | 2052 | // All but last of multiple declarators subsume a comma |
duke@1 | 2053 | storeEnd((JCTree)vdefs.elems.last(), S.endPos()); |
duke@1 | 2054 | S.nextToken(); |
duke@1 | 2055 | vdefs.append(variableDeclarator(mods, type, reqInit, dc)); |
duke@1 | 2056 | } |
duke@1 | 2057 | return vdefs; |
duke@1 | 2058 | } |
duke@1 | 2059 | |
duke@1 | 2060 | /** VariableDeclarator = Ident VariableDeclaratorRest |
duke@1 | 2061 | * ConstantDeclarator = Ident ConstantDeclaratorRest |
duke@1 | 2062 | */ |
duke@1 | 2063 | JCVariableDecl variableDeclarator(JCModifiers mods, JCExpression type, boolean reqInit, String dc) { |
duke@1 | 2064 | return variableDeclaratorRest(S.pos(), mods, type, ident(), reqInit, dc); |
duke@1 | 2065 | } |
duke@1 | 2066 | |
duke@1 | 2067 | /** VariableDeclaratorRest = BracketsOpt ["=" VariableInitializer] |
duke@1 | 2068 | * ConstantDeclaratorRest = BracketsOpt "=" VariableInitializer |
duke@1 | 2069 | * |
duke@1 | 2070 | * @param reqInit Is an initializer always required? |
duke@1 | 2071 | * @param dc The documentation comment for the variable declarations, or null. |
duke@1 | 2072 | */ |
duke@1 | 2073 | JCVariableDecl variableDeclaratorRest(int pos, JCModifiers mods, JCExpression type, Name name, |
duke@1 | 2074 | boolean reqInit, String dc) { |
duke@1 | 2075 | type = bracketsOpt(type); |
duke@1 | 2076 | JCExpression init = null; |
duke@1 | 2077 | if (S.token() == EQ) { |
duke@1 | 2078 | S.nextToken(); |
duke@1 | 2079 | init = variableInitializer(); |
duke@1 | 2080 | } |
mcimadamore@80 | 2081 | else if (reqInit) syntaxError(S.pos(), "expected", EQ); |
duke@1 | 2082 | JCVariableDecl result = |
duke@1 | 2083 | toP(F.at(pos).VarDef(mods, name, type, init)); |
duke@1 | 2084 | attach(result, dc); |
duke@1 | 2085 | return result; |
duke@1 | 2086 | } |
duke@1 | 2087 | |
duke@1 | 2088 | /** VariableDeclaratorId = Ident BracketsOpt |
duke@1 | 2089 | */ |
duke@1 | 2090 | JCVariableDecl variableDeclaratorId(JCModifiers mods, JCExpression type) { |
duke@1 | 2091 | int pos = S.pos(); |
duke@1 | 2092 | Name name = ident(); |
duke@1 | 2093 | if ((mods.flags & Flags.VARARGS) == 0) |
duke@1 | 2094 | type = bracketsOpt(type); |
duke@1 | 2095 | return toP(F.at(pos).VarDef(mods, name, type, null)); |
duke@1 | 2096 | } |
duke@1 | 2097 | |
duke@1 | 2098 | /** CompilationUnit = [ { "@" Annotation } PACKAGE Qualident ";"] {ImportDeclaration} {TypeDeclaration} |
duke@1 | 2099 | */ |
jjg@111 | 2100 | public JCTree.JCCompilationUnit parseCompilationUnit() { |
duke@1 | 2101 | int pos = S.pos(); |
duke@1 | 2102 | JCExpression pid = null; |
duke@1 | 2103 | String dc = S.docComment(); |
duke@1 | 2104 | JCModifiers mods = null; |
duke@1 | 2105 | List<JCAnnotation> packageAnnotations = List.nil(); |
duke@1 | 2106 | if (S.token() == MONKEYS_AT) |
duke@1 | 2107 | mods = modifiersOpt(); |
duke@1 | 2108 | |
duke@1 | 2109 | if (S.token() == PACKAGE) { |
duke@1 | 2110 | if (mods != null) { |
duke@1 | 2111 | checkNoMods(mods.flags); |
duke@1 | 2112 | packageAnnotations = mods.annotations; |
duke@1 | 2113 | mods = null; |
duke@1 | 2114 | } |
duke@1 | 2115 | S.nextToken(); |
duke@1 | 2116 | pid = qualident(); |
duke@1 | 2117 | accept(SEMI); |
duke@1 | 2118 | } |
duke@1 | 2119 | ListBuffer<JCTree> defs = new ListBuffer<JCTree>(); |
jjg@111 | 2120 | boolean checkForImports = true; |
duke@1 | 2121 | while (S.token() != EOF) { |
duke@1 | 2122 | if (S.pos() <= errorEndPos) { |
duke@1 | 2123 | // error recovery |
duke@1 | 2124 | skip(checkForImports, false, false, false); |
duke@1 | 2125 | if (S.token() == EOF) |
duke@1 | 2126 | break; |
duke@1 | 2127 | } |
duke@1 | 2128 | if (checkForImports && mods == null && S.token() == IMPORT) { |
duke@1 | 2129 | defs.append(importDeclaration()); |
duke@1 | 2130 | } else { |
duke@1 | 2131 | JCTree def = typeDeclaration(mods); |
duke@1 | 2132 | if (def instanceof JCExpressionStatement) |
duke@1 | 2133 | def = ((JCExpressionStatement)def).expr; |
duke@1 | 2134 | defs.append(def); |
duke@1 | 2135 | if (def instanceof JCClassDecl) |
duke@1 | 2136 | checkForImports = false; |
duke@1 | 2137 | mods = null; |
duke@1 | 2138 | } |
duke@1 | 2139 | } |
duke@1 | 2140 | JCTree.JCCompilationUnit toplevel = F.at(pos).TopLevel(packageAnnotations, pid, defs.toList()); |
duke@1 | 2141 | attach(toplevel, dc); |
duke@1 | 2142 | if (defs.elems.isEmpty()) |
duke@1 | 2143 | storeEnd(toplevel, S.prevEndPos()); |
jjg@111 | 2144 | if (keepDocComments) |
jjg@111 | 2145 | toplevel.docComments = docComments; |
jjg@111 | 2146 | if (keepLineMap) |
jjg@111 | 2147 | toplevel.lineMap = S.getLineMap(); |
duke@1 | 2148 | return toplevel; |
duke@1 | 2149 | } |
duke@1 | 2150 | |
duke@1 | 2151 | /** ImportDeclaration = IMPORT [ STATIC ] Ident { "." Ident } [ "." "*" ] ";" |
duke@1 | 2152 | */ |
duke@1 | 2153 | JCTree importDeclaration() { |
duke@1 | 2154 | int pos = S.pos(); |
duke@1 | 2155 | S.nextToken(); |
duke@1 | 2156 | boolean importStatic = false; |
duke@1 | 2157 | if (S.token() == STATIC) { |
duke@1 | 2158 | checkStaticImports(); |
duke@1 | 2159 | importStatic = true; |
duke@1 | 2160 | S.nextToken(); |
duke@1 | 2161 | } |
duke@1 | 2162 | JCExpression pid = toP(F.at(S.pos()).Ident(ident())); |
duke@1 | 2163 | do { |
duke@1 | 2164 | int pos1 = S.pos(); |
duke@1 | 2165 | accept(DOT); |
duke@1 | 2166 | if (S.token() == STAR) { |
duke@1 | 2167 | pid = to(F.at(pos1).Select(pid, names.asterisk)); |
duke@1 | 2168 | S.nextToken(); |
duke@1 | 2169 | break; |
duke@1 | 2170 | } else { |
duke@1 | 2171 | pid = toP(F.at(pos1).Select(pid, ident())); |
duke@1 | 2172 | } |
duke@1 | 2173 | } while (S.token() == DOT); |
duke@1 | 2174 | accept(SEMI); |
duke@1 | 2175 | return toP(F.at(pos).Import(pid, importStatic)); |
duke@1 | 2176 | } |
duke@1 | 2177 | |
duke@1 | 2178 | /** TypeDeclaration = ClassOrInterfaceOrEnumDeclaration |
duke@1 | 2179 | * | ";" |
duke@1 | 2180 | */ |
duke@1 | 2181 | JCTree typeDeclaration(JCModifiers mods) { |
duke@1 | 2182 | int pos = S.pos(); |
duke@1 | 2183 | if (mods == null && S.token() == SEMI) { |
duke@1 | 2184 | S.nextToken(); |
duke@1 | 2185 | return toP(F.at(pos).Skip()); |
duke@1 | 2186 | } else { |
duke@1 | 2187 | String dc = S.docComment(); |
duke@1 | 2188 | return classOrInterfaceOrEnumDeclaration(modifiersOpt(mods), dc); |
duke@1 | 2189 | } |
duke@1 | 2190 | } |
duke@1 | 2191 | |
duke@1 | 2192 | /** ClassOrInterfaceOrEnumDeclaration = ModifiersOpt |
duke@1 | 2193 | * (ClassDeclaration | InterfaceDeclaration | EnumDeclaration) |
duke@1 | 2194 | * @param mods Any modifiers starting the class or interface declaration |
duke@1 | 2195 | * @param dc The documentation comment for the class, or null. |
duke@1 | 2196 | */ |
duke@1 | 2197 | JCStatement classOrInterfaceOrEnumDeclaration(JCModifiers mods, String dc) { |
duke@1 | 2198 | if (S.token() == CLASS) { |
duke@1 | 2199 | return classDeclaration(mods, dc); |
duke@1 | 2200 | } else if (S.token() == INTERFACE) { |
duke@1 | 2201 | return interfaceDeclaration(mods, dc); |
duke@1 | 2202 | } else if (allowEnums) { |
duke@1 | 2203 | if (S.token() == ENUM) { |
duke@1 | 2204 | return enumDeclaration(mods, dc); |
duke@1 | 2205 | } else { |
duke@1 | 2206 | int pos = S.pos(); |
duke@1 | 2207 | List<JCTree> errs; |
duke@1 | 2208 | if (S.token() == IDENTIFIER) { |
duke@1 | 2209 | errs = List.<JCTree>of(mods, toP(F.at(pos).Ident(ident()))); |
duke@1 | 2210 | setErrorEndPos(S.pos()); |
duke@1 | 2211 | } else { |
duke@1 | 2212 | errs = List.<JCTree>of(mods); |
duke@1 | 2213 | } |
duke@1 | 2214 | return toP(F.Exec(syntaxError(pos, errs, "expected3", |
mcimadamore@80 | 2215 | CLASS, INTERFACE, ENUM))); |
duke@1 | 2216 | } |
duke@1 | 2217 | } else { |
duke@1 | 2218 | if (S.token() == ENUM) { |
duke@1 | 2219 | log.error(S.pos(), "enums.not.supported.in.source", source.name); |
duke@1 | 2220 | allowEnums = true; |
duke@1 | 2221 | return enumDeclaration(mods, dc); |
duke@1 | 2222 | } |
duke@1 | 2223 | int pos = S.pos(); |
duke@1 | 2224 | List<JCTree> errs; |
duke@1 | 2225 | if (S.token() == IDENTIFIER) { |
duke@1 | 2226 | errs = List.<JCTree>of(mods, toP(F.at(pos).Ident(ident()))); |
duke@1 | 2227 | setErrorEndPos(S.pos()); |
duke@1 | 2228 | } else { |
duke@1 | 2229 | errs = List.<JCTree>of(mods); |
duke@1 | 2230 | } |
duke@1 | 2231 | return toP(F.Exec(syntaxError(pos, errs, "expected2", |
mcimadamore@80 | 2232 | CLASS, INTERFACE))); |
duke@1 | 2233 | } |
duke@1 | 2234 | } |
duke@1 | 2235 | |
duke@1 | 2236 | /** ClassDeclaration = CLASS Ident TypeParametersOpt [EXTENDS Type] |
duke@1 | 2237 | * [IMPLEMENTS TypeList] ClassBody |
duke@1 | 2238 | * @param mods The modifiers starting the class declaration |
duke@1 | 2239 | * @param dc The documentation comment for the class, or null. |
duke@1 | 2240 | */ |
duke@1 | 2241 | JCClassDecl classDeclaration(JCModifiers mods, String dc) { |
duke@1 | 2242 | int pos = S.pos(); |
duke@1 | 2243 | accept(CLASS); |
duke@1 | 2244 | Name name = ident(); |
duke@1 | 2245 | |
duke@1 | 2246 | List<JCTypeParameter> typarams = typeParametersOpt(); |
duke@1 | 2247 | |
duke@1 | 2248 | JCTree extending = null; |
duke@1 | 2249 | if (S.token() == EXTENDS) { |
duke@1 | 2250 | S.nextToken(); |
jjg@111 | 2251 | extending = parseType(); |
duke@1 | 2252 | } |
duke@1 | 2253 | List<JCExpression> implementing = List.nil(); |
duke@1 | 2254 | if (S.token() == IMPLEMENTS) { |
duke@1 | 2255 | S.nextToken(); |
duke@1 | 2256 | implementing = typeList(); |
duke@1 | 2257 | } |
duke@1 | 2258 | List<JCTree> defs = classOrInterfaceBody(name, false); |
duke@1 | 2259 | JCClassDecl result = toP(F.at(pos).ClassDef( |
duke@1 | 2260 | mods, name, typarams, extending, implementing, defs)); |
duke@1 | 2261 | attach(result, dc); |
duke@1 | 2262 | return result; |
duke@1 | 2263 | } |
duke@1 | 2264 | |
duke@1 | 2265 | /** InterfaceDeclaration = INTERFACE Ident TypeParametersOpt |
duke@1 | 2266 | * [EXTENDS TypeList] InterfaceBody |
duke@1 | 2267 | * @param mods The modifiers starting the interface declaration |
duke@1 | 2268 | * @param dc The documentation comment for the interface, or null. |
duke@1 | 2269 | */ |
duke@1 | 2270 | JCClassDecl interfaceDeclaration(JCModifiers mods, String dc) { |
duke@1 | 2271 | int pos = S.pos(); |
duke@1 | 2272 | accept(INTERFACE); |
duke@1 | 2273 | Name name = ident(); |
duke@1 | 2274 | |
duke@1 | 2275 | List<JCTypeParameter> typarams = typeParametersOpt(); |
duke@1 | 2276 | |
duke@1 | 2277 | List<JCExpression> extending = List.nil(); |
duke@1 | 2278 | if (S.token() == EXTENDS) { |
duke@1 | 2279 | S.nextToken(); |
duke@1 | 2280 | extending = typeList(); |
duke@1 | 2281 | } |
duke@1 | 2282 | List<JCTree> defs = classOrInterfaceBody(name, true); |
duke@1 | 2283 | JCClassDecl result = toP(F.at(pos).ClassDef( |
duke@1 | 2284 | mods, name, typarams, null, extending, defs)); |
duke@1 | 2285 | attach(result, dc); |
duke@1 | 2286 | return result; |
duke@1 | 2287 | } |
duke@1 | 2288 | |
duke@1 | 2289 | /** EnumDeclaration = ENUM Ident [IMPLEMENTS TypeList] EnumBody |
duke@1 | 2290 | * @param mods The modifiers starting the enum declaration |
duke@1 | 2291 | * @param dc The documentation comment for the enum, or null. |
duke@1 | 2292 | */ |
duke@1 | 2293 | JCClassDecl enumDeclaration(JCModifiers mods, String dc) { |
duke@1 | 2294 | int pos = S.pos(); |
duke@1 | 2295 | accept(ENUM); |
duke@1 | 2296 | Name name = ident(); |
duke@1 | 2297 | |
duke@1 | 2298 | List<JCExpression> implementing = List.nil(); |
duke@1 | 2299 | if (S.token() == IMPLEMENTS) { |
duke@1 | 2300 | S.nextToken(); |
duke@1 | 2301 | implementing = typeList(); |
duke@1 | 2302 | } |
duke@1 | 2303 | |
duke@1 | 2304 | List<JCTree> defs = enumBody(name); |
duke@1 | 2305 | JCModifiers newMods = |
duke@1 | 2306 | F.at(mods.pos).Modifiers(mods.flags|Flags.ENUM, mods.annotations); |
duke@1 | 2307 | JCClassDecl result = toP(F.at(pos). |
duke@1 | 2308 | ClassDef(newMods, name, List.<JCTypeParameter>nil(), |
duke@1 | 2309 | null, implementing, defs)); |
duke@1 | 2310 | attach(result, dc); |
duke@1 | 2311 | return result; |
duke@1 | 2312 | } |
duke@1 | 2313 | |
duke@1 | 2314 | /** EnumBody = "{" { EnumeratorDeclarationList } [","] |
duke@1 | 2315 | * [ ";" {ClassBodyDeclaration} ] "}" |
duke@1 | 2316 | */ |
duke@1 | 2317 | List<JCTree> enumBody(Name enumName) { |
duke@1 | 2318 | accept(LBRACE); |
duke@1 | 2319 | ListBuffer<JCTree> defs = new ListBuffer<JCTree>(); |
duke@1 | 2320 | if (S.token() == COMMA) { |
duke@1 | 2321 | S.nextToken(); |
duke@1 | 2322 | } else if (S.token() != RBRACE && S.token() != SEMI) { |
duke@1 | 2323 | defs.append(enumeratorDeclaration(enumName)); |
duke@1 | 2324 | while (S.token() == COMMA) { |
duke@1 | 2325 | S.nextToken(); |
duke@1 | 2326 | if (S.token() == RBRACE || S.token() == SEMI) break; |
duke@1 | 2327 | defs.append(enumeratorDeclaration(enumName)); |
duke@1 | 2328 | } |
duke@1 | 2329 | if (S.token() != SEMI && S.token() != RBRACE) { |
duke@1 | 2330 | defs.append(syntaxError(S.pos(), "expected3", |
mcimadamore@80 | 2331 | COMMA, RBRACE, SEMI)); |
duke@1 | 2332 | S.nextToken(); |
duke@1 | 2333 | } |
duke@1 | 2334 | } |
duke@1 | 2335 | if (S.token() == SEMI) { |
duke@1 | 2336 | S.nextToken(); |
duke@1 | 2337 | while (S.token() != RBRACE && S.token() != EOF) { |
duke@1 | 2338 | defs.appendList(classOrInterfaceBodyDeclaration(enumName, |
duke@1 | 2339 | false)); |
duke@1 | 2340 | if (S.pos() <= errorEndPos) { |
duke@1 | 2341 | // error recovery |
duke@1 | 2342 | skip(false, true, true, false); |
duke@1 | 2343 | } |
duke@1 | 2344 | } |
duke@1 | 2345 | } |
duke@1 | 2346 | accept(RBRACE); |
duke@1 | 2347 | return defs.toList(); |
duke@1 | 2348 | } |
duke@1 | 2349 | |
duke@1 | 2350 | /** EnumeratorDeclaration = AnnotationsOpt [TypeArguments] IDENTIFIER [ Arguments ] [ "{" ClassBody "}" ] |
duke@1 | 2351 | */ |
duke@1 | 2352 | JCTree enumeratorDeclaration(Name enumName) { |
duke@1 | 2353 | String dc = S.docComment(); |
duke@1 | 2354 | int flags = Flags.PUBLIC|Flags.STATIC|Flags.FINAL|Flags.ENUM; |
duke@1 | 2355 | if (S.deprecatedFlag()) { |
duke@1 | 2356 | flags |= Flags.DEPRECATED; |
duke@1 | 2357 | S.resetDeprecatedFlag(); |
duke@1 | 2358 | } |
duke@1 | 2359 | int pos = S.pos(); |
duke@1 | 2360 | List<JCAnnotation> annotations = annotationsOpt(); |
duke@1 | 2361 | JCModifiers mods = F.at(annotations.isEmpty() ? Position.NOPOS : pos).Modifiers(flags, annotations); |
duke@1 | 2362 | List<JCExpression> typeArgs = typeArgumentsOpt(); |
duke@1 | 2363 | int identPos = S.pos(); |
duke@1 | 2364 | Name name = ident(); |
duke@1 | 2365 | int createPos = S.pos(); |
duke@1 | 2366 | List<JCExpression> args = (S.token() == LPAREN) |
duke@1 | 2367 | ? arguments() : List.<JCExpression>nil(); |
duke@1 | 2368 | JCClassDecl body = null; |
duke@1 | 2369 | if (S.token() == LBRACE) { |
duke@1 | 2370 | JCModifiers mods1 = F.at(Position.NOPOS).Modifiers(Flags.ENUM | Flags.STATIC); |
duke@1 | 2371 | List<JCTree> defs = classOrInterfaceBody(names.empty, false); |
duke@1 | 2372 | body = toP(F.at(identPos).AnonymousClassDef(mods1, defs)); |
duke@1 | 2373 | } |
duke@1 | 2374 | if (args.isEmpty() && body == null) |
duke@1 | 2375 | createPos = Position.NOPOS; |
duke@1 | 2376 | JCIdent ident = F.at(Position.NOPOS).Ident(enumName); |
duke@1 | 2377 | JCNewClass create = F.at(createPos).NewClass(null, typeArgs, ident, args, body); |
duke@1 | 2378 | if (createPos != Position.NOPOS) |
duke@1 | 2379 | storeEnd(create, S.prevEndPos()); |
duke@1 | 2380 | ident = F.at(Position.NOPOS).Ident(enumName); |
duke@1 | 2381 | JCTree result = toP(F.at(pos).VarDef(mods, name, ident, create)); |
duke@1 | 2382 | attach(result, dc); |
duke@1 | 2383 | return result; |
duke@1 | 2384 | } |
duke@1 | 2385 | |
duke@1 | 2386 | /** TypeList = Type {"," Type} |
duke@1 | 2387 | */ |
duke@1 | 2388 | List<JCExpression> typeList() { |
duke@1 | 2389 | ListBuffer<JCExpression> ts = new ListBuffer<JCExpression>(); |
jjg@111 | 2390 | ts.append(parseType()); |
duke@1 | 2391 | while (S.token() == COMMA) { |
duke@1 | 2392 | S.nextToken(); |
jjg@111 | 2393 | ts.append(parseType()); |
duke@1 | 2394 | } |
duke@1 | 2395 | return ts.toList(); |
duke@1 | 2396 | } |
duke@1 | 2397 | |
duke@1 | 2398 | /** ClassBody = "{" {ClassBodyDeclaration} "}" |
duke@1 | 2399 | * InterfaceBody = "{" {InterfaceBodyDeclaration} "}" |
duke@1 | 2400 | */ |
duke@1 | 2401 | List<JCTree> classOrInterfaceBody(Name className, boolean isInterface) { |
duke@1 | 2402 | accept(LBRACE); |
duke@1 | 2403 | if (S.pos() <= errorEndPos) { |
duke@1 | 2404 | // error recovery |
duke@1 | 2405 | skip(false, true, false, false); |
duke@1 | 2406 | if (S.token() == LBRACE) |
duke@1 | 2407 | S.nextToken(); |
duke@1 | 2408 | } |
duke@1 | 2409 | ListBuffer<JCTree> defs = new ListBuffer<JCTree>(); |
duke@1 | 2410 | while (S.token() != RBRACE && S.token() != EOF) { |
duke@1 | 2411 | defs.appendList(classOrInterfaceBodyDeclaration(className, isInterface)); |
duke@1 | 2412 | if (S.pos() <= errorEndPos) { |
duke@1 | 2413 | // error recovery |
duke@1 | 2414 | skip(false, true, true, false); |
duke@1 | 2415 | } |
duke@1 | 2416 | } |
duke@1 | 2417 | accept(RBRACE); |
duke@1 | 2418 | return defs.toList(); |
duke@1 | 2419 | } |
duke@1 | 2420 | |
duke@1 | 2421 | /** ClassBodyDeclaration = |
duke@1 | 2422 | * ";" |
duke@1 | 2423 | * | [STATIC] Block |
duke@1 | 2424 | * | ModifiersOpt |
duke@1 | 2425 | * ( Type Ident |
duke@1 | 2426 | * ( VariableDeclaratorsRest ";" | MethodDeclaratorRest ) |
duke@1 | 2427 | * | VOID Ident MethodDeclaratorRest |
duke@1 | 2428 | * | TypeParameters (Type | VOID) Ident MethodDeclaratorRest |
duke@1 | 2429 | * | Ident ConstructorDeclaratorRest |
duke@1 | 2430 | * | TypeParameters Ident ConstructorDeclaratorRest |
duke@1 | 2431 | * | ClassOrInterfaceOrEnumDeclaration |
duke@1 | 2432 | * ) |
duke@1 | 2433 | * InterfaceBodyDeclaration = |
duke@1 | 2434 | * ";" |
duke@1 | 2435 | * | ModifiersOpt Type Ident |
duke@1 | 2436 | * ( ConstantDeclaratorsRest | InterfaceMethodDeclaratorRest ";" ) |
duke@1 | 2437 | */ |
duke@1 | 2438 | List<JCTree> classOrInterfaceBodyDeclaration(Name className, boolean isInterface) { |
duke@1 | 2439 | if (S.token() == SEMI) { |
duke@1 | 2440 | S.nextToken(); |
duke@1 | 2441 | return List.<JCTree>of(F.at(Position.NOPOS).Block(0, List.<JCStatement>nil())); |
duke@1 | 2442 | } else { |
duke@1 | 2443 | String dc = S.docComment(); |
duke@1 | 2444 | int pos = S.pos(); |
duke@1 | 2445 | JCModifiers mods = modifiersOpt(); |
duke@1 | 2446 | if (S.token() == CLASS || |
duke@1 | 2447 | S.token() == INTERFACE || |
duke@1 | 2448 | allowEnums && S.token() == ENUM) { |
duke@1 | 2449 | return List.<JCTree>of(classOrInterfaceOrEnumDeclaration(mods, dc)); |
duke@1 | 2450 | } else if (S.token() == LBRACE && !isInterface && |
duke@1 | 2451 | (mods.flags & Flags.StandardFlags & ~Flags.STATIC) == 0 && |
duke@1 | 2452 | mods.annotations.isEmpty()) { |
duke@1 | 2453 | return List.<JCTree>of(block(pos, mods.flags)); |
duke@1 | 2454 | } else { |
duke@1 | 2455 | pos = S.pos(); |
duke@1 | 2456 | List<JCTypeParameter> typarams = typeParametersOpt(); |
duke@1 | 2457 | // Hack alert: if there are type arguments but no Modifiers, the start |
duke@1 | 2458 | // position will be lost unless we set the Modifiers position. There |
duke@1 | 2459 | // should be an AST node for type parameters (BugId 5005090). |
duke@1 | 2460 | if (typarams.length() > 0 && mods.pos == Position.NOPOS) { |
duke@1 | 2461 | mods.pos = pos; |
duke@1 | 2462 | } |
duke@1 | 2463 | Token token = S.token(); |
duke@1 | 2464 | Name name = S.name(); |
duke@1 | 2465 | pos = S.pos(); |
duke@1 | 2466 | JCExpression type; |
duke@1 | 2467 | boolean isVoid = S.token() == VOID; |
duke@1 | 2468 | if (isVoid) { |
duke@1 | 2469 | type = to(F.at(pos).TypeIdent(TypeTags.VOID)); |
duke@1 | 2470 | S.nextToken(); |
duke@1 | 2471 | } else { |
jjg@111 | 2472 | type = parseType(); |
duke@1 | 2473 | } |
duke@1 | 2474 | if (S.token() == LPAREN && !isInterface && type.getTag() == JCTree.IDENT) { |
duke@1 | 2475 | if (isInterface || name != className) |
duke@1 | 2476 | log.error(pos, "invalid.meth.decl.ret.type.req"); |
duke@1 | 2477 | return List.of(methodDeclaratorRest( |
duke@1 | 2478 | pos, mods, null, names.init, typarams, |
duke@1 | 2479 | isInterface, true, dc)); |
duke@1 | 2480 | } else { |
duke@1 | 2481 | pos = S.pos(); |
duke@1 | 2482 | name = ident(); |
duke@1 | 2483 | if (S.token() == LPAREN) { |
duke@1 | 2484 | return List.of(methodDeclaratorRest( |
duke@1 | 2485 | pos, mods, type, name, typarams, |
duke@1 | 2486 | isInterface, isVoid, dc)); |
duke@1 | 2487 | } else if (!isVoid && typarams.isEmpty()) { |
duke@1 | 2488 | List<JCTree> defs = |
duke@1 | 2489 | variableDeclaratorsRest(pos, mods, type, name, isInterface, dc, |
duke@1 | 2490 | new ListBuffer<JCTree>()).toList(); |
duke@1 | 2491 | storeEnd(defs.last(), S.endPos()); |
duke@1 | 2492 | accept(SEMI); |
duke@1 | 2493 | return defs; |
duke@1 | 2494 | } else { |
duke@1 | 2495 | pos = S.pos(); |
duke@1 | 2496 | List<JCTree> err = isVoid |
duke@1 | 2497 | ? List.<JCTree>of(toP(F.at(pos).MethodDef(mods, name, type, typarams, |
duke@1 | 2498 | List.<JCVariableDecl>nil(), List.<JCExpression>nil(), null, null))) |
duke@1 | 2499 | : null; |
mcimadamore@80 | 2500 | return List.<JCTree>of(syntaxError(S.pos(), err, "expected", LPAREN)); |
duke@1 | 2501 | } |
duke@1 | 2502 | } |
duke@1 | 2503 | } |
duke@1 | 2504 | } |
duke@1 | 2505 | } |
duke@1 | 2506 | |
duke@1 | 2507 | /** MethodDeclaratorRest = |
duke@1 | 2508 | * FormalParameters BracketsOpt [Throws TypeList] ( MethodBody | [DEFAULT AnnotationValue] ";") |
duke@1 | 2509 | * VoidMethodDeclaratorRest = |
duke@1 | 2510 | * FormalParameters [Throws TypeList] ( MethodBody | ";") |
duke@1 | 2511 | * InterfaceMethodDeclaratorRest = |
duke@1 | 2512 | * FormalParameters BracketsOpt [THROWS TypeList] ";" |
duke@1 | 2513 | * VoidInterfaceMethodDeclaratorRest = |
duke@1 | 2514 | * FormalParameters [THROWS TypeList] ";" |
duke@1 | 2515 | * ConstructorDeclaratorRest = |
duke@1 | 2516 | * "(" FormalParameterListOpt ")" [THROWS TypeList] MethodBody |
duke@1 | 2517 | */ |
duke@1 | 2518 | JCTree methodDeclaratorRest(int pos, |
duke@1 | 2519 | JCModifiers mods, |
duke@1 | 2520 | JCExpression type, |
duke@1 | 2521 | Name name, |
duke@1 | 2522 | List<JCTypeParameter> typarams, |
duke@1 | 2523 | boolean isInterface, boolean isVoid, |
duke@1 | 2524 | String dc) { |
duke@1 | 2525 | List<JCVariableDecl> params = formalParameters(); |
duke@1 | 2526 | if (!isVoid) type = bracketsOpt(type); |
duke@1 | 2527 | List<JCExpression> thrown = List.nil(); |
duke@1 | 2528 | if (S.token() == THROWS) { |
duke@1 | 2529 | S.nextToken(); |
duke@1 | 2530 | thrown = qualidentList(); |
duke@1 | 2531 | } |
duke@1 | 2532 | JCBlock body = null; |
duke@1 | 2533 | JCExpression defaultValue; |
duke@1 | 2534 | if (S.token() == LBRACE) { |
duke@1 | 2535 | body = block(); |
duke@1 | 2536 | defaultValue = null; |
duke@1 | 2537 | } else { |
duke@1 | 2538 | if (S.token() == DEFAULT) { |
duke@1 | 2539 | accept(DEFAULT); |
duke@1 | 2540 | defaultValue = annotationValue(); |
duke@1 | 2541 | } else { |
duke@1 | 2542 | defaultValue = null; |
duke@1 | 2543 | } |
duke@1 | 2544 | accept(SEMI); |
duke@1 | 2545 | if (S.pos() <= errorEndPos) { |
duke@1 | 2546 | // error recovery |
duke@1 | 2547 | skip(false, true, false, false); |
duke@1 | 2548 | if (S.token() == LBRACE) { |
duke@1 | 2549 | body = block(); |
duke@1 | 2550 | } |
duke@1 | 2551 | } |
duke@1 | 2552 | } |
duke@1 | 2553 | JCMethodDecl result = |
duke@1 | 2554 | toP(F.at(pos).MethodDef(mods, name, type, typarams, |
duke@1 | 2555 | params, thrown, |
duke@1 | 2556 | body, defaultValue)); |
duke@1 | 2557 | attach(result, dc); |
duke@1 | 2558 | return result; |
duke@1 | 2559 | } |
duke@1 | 2560 | |
duke@1 | 2561 | /** QualidentList = Qualident {"," Qualident} |
duke@1 | 2562 | */ |
duke@1 | 2563 | List<JCExpression> qualidentList() { |
duke@1 | 2564 | ListBuffer<JCExpression> ts = new ListBuffer<JCExpression>(); |
duke@1 | 2565 | ts.append(qualident()); |
duke@1 | 2566 | while (S.token() == COMMA) { |
duke@1 | 2567 | S.nextToken(); |
duke@1 | 2568 | ts.append(qualident()); |
duke@1 | 2569 | } |
duke@1 | 2570 | return ts.toList(); |
duke@1 | 2571 | } |
duke@1 | 2572 | |
duke@1 | 2573 | /** TypeParametersOpt = ["<" TypeParameter {"," TypeParameter} ">"] |
duke@1 | 2574 | */ |
duke@1 | 2575 | List<JCTypeParameter> typeParametersOpt() { |
duke@1 | 2576 | if (S.token() == LT) { |
duke@1 | 2577 | checkGenerics(); |
duke@1 | 2578 | ListBuffer<JCTypeParameter> typarams = new ListBuffer<JCTypeParameter>(); |
duke@1 | 2579 | S.nextToken(); |
duke@1 | 2580 | typarams.append(typeParameter()); |
duke@1 | 2581 | while (S.token() == COMMA) { |
duke@1 | 2582 | S.nextToken(); |
duke@1 | 2583 | typarams.append(typeParameter()); |
duke@1 | 2584 | } |
duke@1 | 2585 | accept(GT); |
duke@1 | 2586 | return typarams.toList(); |
duke@1 | 2587 | } else { |
duke@1 | 2588 | return List.nil(); |
duke@1 | 2589 | } |
duke@1 | 2590 | } |
duke@1 | 2591 | |
duke@1 | 2592 | /** TypeParameter = TypeVariable [TypeParameterBound] |
duke@1 | 2593 | * TypeParameterBound = EXTENDS Type {"&" Type} |
duke@1 | 2594 | * TypeVariable = Ident |
duke@1 | 2595 | */ |
duke@1 | 2596 | JCTypeParameter typeParameter() { |
duke@1 | 2597 | int pos = S.pos(); |
duke@1 | 2598 | Name name = ident(); |
duke@1 | 2599 | ListBuffer<JCExpression> bounds = new ListBuffer<JCExpression>(); |
duke@1 | 2600 | if (S.token() == EXTENDS) { |
duke@1 | 2601 | S.nextToken(); |
jjg@111 | 2602 | bounds.append(parseType()); |
duke@1 | 2603 | while (S.token() == AMP) { |
duke@1 | 2604 | S.nextToken(); |
jjg@111 | 2605 | bounds.append(parseType()); |
duke@1 | 2606 | } |
duke@1 | 2607 | } |
duke@1 | 2608 | return toP(F.at(pos).TypeParameter(name, bounds.toList())); |
duke@1 | 2609 | } |
duke@1 | 2610 | |
duke@1 | 2611 | /** FormalParameters = "(" [ FormalParameterList ] ")" |
duke@1 | 2612 | * FormalParameterList = [ FormalParameterListNovarargs , ] LastFormalParameter |
duke@1 | 2613 | * FormalParameterListNovarargs = [ FormalParameterListNovarargs , ] FormalParameter |
duke@1 | 2614 | */ |
duke@1 | 2615 | List<JCVariableDecl> formalParameters() { |
duke@1 | 2616 | ListBuffer<JCVariableDecl> params = new ListBuffer<JCVariableDecl>(); |
duke@1 | 2617 | JCVariableDecl lastParam = null; |
duke@1 | 2618 | accept(LPAREN); |
duke@1 | 2619 | if (S.token() != RPAREN) { |
duke@1 | 2620 | params.append(lastParam = formalParameter()); |
duke@1 | 2621 | while ((lastParam.mods.flags & Flags.VARARGS) == 0 && S.token() == COMMA) { |
duke@1 | 2622 | S.nextToken(); |
duke@1 | 2623 | params.append(lastParam = formalParameter()); |
duke@1 | 2624 | } |
duke@1 | 2625 | } |
duke@1 | 2626 | accept(RPAREN); |
duke@1 | 2627 | return params.toList(); |
duke@1 | 2628 | } |
duke@1 | 2629 | |
duke@1 | 2630 | JCModifiers optFinal(long flags) { |
duke@1 | 2631 | JCModifiers mods = modifiersOpt(); |
duke@1 | 2632 | checkNoMods(mods.flags & ~(Flags.FINAL | Flags.DEPRECATED)); |
duke@1 | 2633 | mods.flags |= flags; |
duke@1 | 2634 | return mods; |
duke@1 | 2635 | } |
duke@1 | 2636 | |
duke@1 | 2637 | /** FormalParameter = { FINAL | '@' Annotation } Type VariableDeclaratorId |
duke@1 | 2638 | * LastFormalParameter = { FINAL | '@' Annotation } Type '...' Ident | FormalParameter |
duke@1 | 2639 | */ |
duke@1 | 2640 | JCVariableDecl formalParameter() { |
duke@1 | 2641 | JCModifiers mods = optFinal(Flags.PARAMETER); |
jjg@111 | 2642 | JCExpression type = parseType(); |
duke@1 | 2643 | if (S.token() == ELLIPSIS) { |
duke@1 | 2644 | checkVarargs(); |
duke@1 | 2645 | mods.flags |= Flags.VARARGS; |
duke@1 | 2646 | type = to(F.at(S.pos()).TypeArray(type)); |
duke@1 | 2647 | S.nextToken(); |
duke@1 | 2648 | } |
duke@1 | 2649 | return variableDeclaratorId(mods, type); |
duke@1 | 2650 | } |
duke@1 | 2651 | |
duke@1 | 2652 | /* ---------- auxiliary methods -------------- */ |
duke@1 | 2653 | |
duke@1 | 2654 | /** Check that given tree is a legal expression statement. |
duke@1 | 2655 | */ |
duke@1 | 2656 | protected JCExpression checkExprStat(JCExpression t) { |
duke@1 | 2657 | switch(t.getTag()) { |
duke@1 | 2658 | case JCTree.PREINC: case JCTree.PREDEC: |
duke@1 | 2659 | case JCTree.POSTINC: case JCTree.POSTDEC: |
duke@1 | 2660 | case JCTree.ASSIGN: |
duke@1 | 2661 | case JCTree.BITOR_ASG: case JCTree.BITXOR_ASG: case JCTree.BITAND_ASG: |
duke@1 | 2662 | case JCTree.SL_ASG: case JCTree.SR_ASG: case JCTree.USR_ASG: |
duke@1 | 2663 | case JCTree.PLUS_ASG: case JCTree.MINUS_ASG: |
duke@1 | 2664 | case JCTree.MUL_ASG: case JCTree.DIV_ASG: case JCTree.MOD_ASG: |
duke@1 | 2665 | case JCTree.APPLY: case JCTree.NEWCLASS: |
duke@1 | 2666 | case JCTree.ERRONEOUS: |
duke@1 | 2667 | return t; |
duke@1 | 2668 | default: |
duke@1 | 2669 | log.error(t.pos, "not.stmt"); |
duke@1 | 2670 | return F.at(t.pos).Erroneous(List.<JCTree>of(t)); |
duke@1 | 2671 | } |
duke@1 | 2672 | } |
duke@1 | 2673 | |
duke@1 | 2674 | /** Return precedence of operator represented by token, |
duke@1 | 2675 | * -1 if token is not a binary operator. @see TreeInfo.opPrec |
duke@1 | 2676 | */ |
duke@1 | 2677 | static int prec(Token token) { |
duke@1 | 2678 | int oc = optag(token); |
duke@1 | 2679 | return (oc >= 0) ? TreeInfo.opPrec(oc) : -1; |
duke@1 | 2680 | } |
duke@1 | 2681 | |
duke@1 | 2682 | /** Return operation tag of binary operator represented by token, |
duke@1 | 2683 | * -1 if token is not a binary operator. |
duke@1 | 2684 | */ |
duke@1 | 2685 | static int optag(Token token) { |
duke@1 | 2686 | switch (token) { |
duke@1 | 2687 | case BARBAR: |
duke@1 | 2688 | return JCTree.OR; |
duke@1 | 2689 | case AMPAMP: |
duke@1 | 2690 | return JCTree.AND; |
duke@1 | 2691 | case BAR: |
duke@1 | 2692 | return JCTree.BITOR; |
duke@1 | 2693 | case BAREQ: |
duke@1 | 2694 | return JCTree.BITOR_ASG; |
duke@1 | 2695 | case CARET: |
duke@1 | 2696 | return JCTree.BITXOR; |
duke@1 | 2697 | case CARETEQ: |
duke@1 | 2698 | return JCTree.BITXOR_ASG; |
duke@1 | 2699 | case AMP: |
duke@1 | 2700 | return JCTree.BITAND; |
duke@1 | 2701 | case AMPEQ: |
duke@1 | 2702 | return JCTree.BITAND_ASG; |
duke@1 | 2703 | case EQEQ: |
duke@1 | 2704 | return JCTree.EQ; |
duke@1 | 2705 | case BANGEQ: |
duke@1 | 2706 | return JCTree.NE; |
duke@1 | 2707 | case LT: |
duke@1 | 2708 | return JCTree.LT; |
duke@1 | 2709 | case GT: |
duke@1 | 2710 | return JCTree.GT; |
duke@1 | 2711 | case LTEQ: |
duke@1 | 2712 | return JCTree.LE; |
duke@1 | 2713 | case GTEQ: |
duke@1 | 2714 | return JCTree.GE; |
duke@1 | 2715 | case LTLT: |
duke@1 | 2716 | return JCTree.SL; |
duke@1 | 2717 | case LTLTEQ: |
duke@1 | 2718 | return JCTree.SL_ASG; |
duke@1 | 2719 | case GTGT: |
duke@1 | 2720 | return JCTree.SR; |
duke@1 | 2721 | case GTGTEQ: |
duke@1 | 2722 | return JCTree.SR_ASG; |
duke@1 | 2723 | case GTGTGT: |
duke@1 | 2724 | return JCTree.USR; |
duke@1 | 2725 | case GTGTGTEQ: |
duke@1 | 2726 | return JCTree.USR_ASG; |
duke@1 | 2727 | case PLUS: |
duke@1 | 2728 | return JCTree.PLUS; |
duke@1 | 2729 | case PLUSEQ: |
duke@1 | 2730 | return JCTree.PLUS_ASG; |
duke@1 | 2731 | case SUB: |
duke@1 | 2732 | return JCTree.MINUS; |
duke@1 | 2733 | case SUBEQ: |
duke@1 | 2734 | return JCTree.MINUS_ASG; |
duke@1 | 2735 | case STAR: |
duke@1 | 2736 | return JCTree.MUL; |
duke@1 | 2737 | case STAREQ: |
duke@1 | 2738 | return JCTree.MUL_ASG; |
duke@1 | 2739 | case SLASH: |
duke@1 | 2740 | return JCTree.DIV; |
duke@1 | 2741 | case SLASHEQ: |
duke@1 | 2742 | return JCTree.DIV_ASG; |
duke@1 | 2743 | case PERCENT: |
duke@1 | 2744 | return JCTree.MOD; |
duke@1 | 2745 | case PERCENTEQ: |
duke@1 | 2746 | return JCTree.MOD_ASG; |
duke@1 | 2747 | case INSTANCEOF: |
duke@1 | 2748 | return JCTree.TYPETEST; |
duke@1 | 2749 | default: |
duke@1 | 2750 | return -1; |
duke@1 | 2751 | } |
duke@1 | 2752 | } |
duke@1 | 2753 | |
duke@1 | 2754 | /** Return operation tag of unary operator represented by token, |
duke@1 | 2755 | * -1 if token is not a binary operator. |
duke@1 | 2756 | */ |
duke@1 | 2757 | static int unoptag(Token token) { |
duke@1 | 2758 | switch (token) { |
duke@1 | 2759 | case PLUS: |
duke@1 | 2760 | return JCTree.POS; |
duke@1 | 2761 | case SUB: |
duke@1 | 2762 | return JCTree.NEG; |
duke@1 | 2763 | case BANG: |
duke@1 | 2764 | return JCTree.NOT; |
duke@1 | 2765 | case TILDE: |
duke@1 | 2766 | return JCTree.COMPL; |
duke@1 | 2767 | case PLUSPLUS: |
duke@1 | 2768 | return JCTree.PREINC; |
duke@1 | 2769 | case SUBSUB: |
duke@1 | 2770 | return JCTree.PREDEC; |
duke@1 | 2771 | default: |
duke@1 | 2772 | return -1; |
duke@1 | 2773 | } |
duke@1 | 2774 | } |
duke@1 | 2775 | |
duke@1 | 2776 | /** Return type tag of basic type represented by token, |
duke@1 | 2777 | * -1 if token is not a basic type identifier. |
duke@1 | 2778 | */ |
duke@1 | 2779 | static int typetag(Token token) { |
duke@1 | 2780 | switch (token) { |
duke@1 | 2781 | case BYTE: |
duke@1 | 2782 | return TypeTags.BYTE; |
duke@1 | 2783 | case CHAR: |
duke@1 | 2784 | return TypeTags.CHAR; |
duke@1 | 2785 | case SHORT: |
duke@1 | 2786 | return TypeTags.SHORT; |
duke@1 | 2787 | case INT: |
duke@1 | 2788 | return TypeTags.INT; |
duke@1 | 2789 | case LONG: |
duke@1 | 2790 | return TypeTags.LONG; |
duke@1 | 2791 | case FLOAT: |
duke@1 | 2792 | return TypeTags.FLOAT; |
duke@1 | 2793 | case DOUBLE: |
duke@1 | 2794 | return TypeTags.DOUBLE; |
duke@1 | 2795 | case BOOLEAN: |
duke@1 | 2796 | return TypeTags.BOOLEAN; |
duke@1 | 2797 | default: |
duke@1 | 2798 | return -1; |
duke@1 | 2799 | } |
duke@1 | 2800 | } |
duke@1 | 2801 | |
duke@1 | 2802 | void checkGenerics() { |
duke@1 | 2803 | if (!allowGenerics) { |
duke@1 | 2804 | log.error(S.pos(), "generics.not.supported.in.source", source.name); |
duke@1 | 2805 | allowGenerics = true; |
duke@1 | 2806 | } |
duke@1 | 2807 | } |
duke@1 | 2808 | void checkVarargs() { |
duke@1 | 2809 | if (!allowVarargs) { |
duke@1 | 2810 | log.error(S.pos(), "varargs.not.supported.in.source", source.name); |
duke@1 | 2811 | allowVarargs = true; |
duke@1 | 2812 | } |
duke@1 | 2813 | } |
duke@1 | 2814 | void checkForeach() { |
duke@1 | 2815 | if (!allowForeach) { |
duke@1 | 2816 | log.error(S.pos(), "foreach.not.supported.in.source", source.name); |
duke@1 | 2817 | allowForeach = true; |
duke@1 | 2818 | } |
duke@1 | 2819 | } |
duke@1 | 2820 | void checkStaticImports() { |
duke@1 | 2821 | if (!allowStaticImport) { |
duke@1 | 2822 | log.error(S.pos(), "static.import.not.supported.in.source", source.name); |
duke@1 | 2823 | allowStaticImport = true; |
duke@1 | 2824 | } |
duke@1 | 2825 | } |
duke@1 | 2826 | void checkAnnotations() { |
duke@1 | 2827 | if (!allowAnnotations) { |
duke@1 | 2828 | log.error(S.pos(), "annotations.not.supported.in.source", source.name); |
duke@1 | 2829 | allowAnnotations = true; |
duke@1 | 2830 | } |
duke@1 | 2831 | } |
duke@1 | 2832 | } |