Fri, 26 Jun 2009 19:47:12 -0700
6854796: update JSR308 impl with latest code from type-annotations repo
Reviewed-by: jjg, mcimadamore, darcy
Contributed-by: mernst@cs.washington.edu, mali@csail.mit.edu, mpapi@csail.mit.edu
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 | |
jjg@308 | 78 | // Because of javac's limited lookahead, some contexts are ambiguous in |
jjg@308 | 79 | // the presence of type annotations even though they are not ambiguous |
jjg@308 | 80 | // in the absence of type annotations. Consider this code: |
jjg@308 | 81 | // void m(String [] m) { } |
jjg@308 | 82 | // void m(String ... m) { } |
jjg@308 | 83 | // After parsing "String", javac calls bracketsOpt which immediately |
jjg@308 | 84 | // returns if the next character is not '['. Similarly, javac can see |
jjg@308 | 85 | // if the next token is ... and in that case parse an ellipsis. But in |
jjg@308 | 86 | // the presence of type annotations: |
jjg@308 | 87 | // void m(String @A [] m) { } |
jjg@308 | 88 | // void m(String @A ... m) { } |
jjg@308 | 89 | // no finite lookahead is enough to determine whether to read array |
jjg@308 | 90 | // levels or an ellipsis. Furthermore, if you call bracketsOpt, then |
jjg@308 | 91 | // bracketsOpt first reads all the leading annotations and only then |
jjg@308 | 92 | // discovers that it needs to fail. bracketsOpt needs a way to push |
jjg@308 | 93 | // back the extra annotations that it read. (But, bracketsOpt should |
jjg@308 | 94 | // not *always* be allowed to push back extra annotations that it finds |
jjg@308 | 95 | // -- in most contexts, any such extra annotation is an error. |
jjg@308 | 96 | // Another similar case occurs with arrays and receiver annotations: |
jjg@308 | 97 | // String b() @Array [] @Receiver { } |
jjg@308 | 98 | // String b() @Receiver { } |
jjg@308 | 99 | // |
jjg@308 | 100 | // The following two variables permit type annotations that have |
jjg@308 | 101 | // already been read to be stored for later use. Alternate |
jjg@308 | 102 | // implementations are possible but would cause much larger changes to |
jjg@308 | 103 | // the parser. |
jjg@308 | 104 | /** Type annotations that have already been read but have not yet been used. **/ |
jjg@308 | 105 | private List<JCTypeAnnotation> typeAnnotationsPushedBack = null; |
jjg@308 | 106 | /** |
jjg@308 | 107 | * If the parser notices extra annotations, then it either immediately |
jjg@308 | 108 | * issues an error (if this variable is false) or places the extra |
jjg@308 | 109 | * annotations in variable typeAnnotationsPushedBack (if this variable |
jjg@308 | 110 | * is true). |
jjg@308 | 111 | */ |
jjg@308 | 112 | private boolean permitTypeAnnotationsPushBack = false; |
jjg@308 | 113 | |
duke@1 | 114 | /** Construct a parser from a given scanner, tree factory and log. |
duke@1 | 115 | */ |
jjg@111 | 116 | protected JavacParser(ParserFactory fac, |
duke@1 | 117 | Lexer S, |
jjg@111 | 118 | boolean keepDocComments, |
jjg@111 | 119 | boolean keepLineMap) { |
duke@1 | 120 | this.S = S; |
duke@1 | 121 | S.nextToken(); // prime the pump |
duke@1 | 122 | this.F = fac.F; |
duke@1 | 123 | this.log = fac.log; |
duke@1 | 124 | this.names = fac.names; |
duke@1 | 125 | this.keywords = fac.keywords; |
duke@1 | 126 | this.source = fac.source; |
duke@1 | 127 | this.allowGenerics = source.allowGenerics(); |
duke@1 | 128 | this.allowVarargs = source.allowVarargs(); |
duke@1 | 129 | this.allowAsserts = source.allowAsserts(); |
duke@1 | 130 | this.allowEnums = source.allowEnums(); |
duke@1 | 131 | this.allowForeach = source.allowForeach(); |
duke@1 | 132 | this.allowStaticImport = source.allowStaticImport(); |
duke@1 | 133 | this.allowAnnotations = source.allowAnnotations(); |
jjg@308 | 134 | this.allowTypeAnnotations = source.allowTypeAnnotations(); |
duke@1 | 135 | this.keepDocComments = keepDocComments; |
jjg@111 | 136 | if (keepDocComments) |
jjg@111 | 137 | docComments = new HashMap<JCTree,String>(); |
jjg@111 | 138 | this.keepLineMap = keepLineMap; |
duke@1 | 139 | this.errorTree = F.Erroneous(); |
jjg@308 | 140 | this.debugJSR308 = fac.options.get("TA:parser") != null; |
duke@1 | 141 | } |
duke@1 | 142 | |
jjg@308 | 143 | /** Switch: debug output for type-annotations operations |
jjg@308 | 144 | */ |
jjg@308 | 145 | boolean debugJSR308; |
jjg@308 | 146 | |
duke@1 | 147 | /** Switch: Should generics be recognized? |
duke@1 | 148 | */ |
duke@1 | 149 | boolean allowGenerics; |
duke@1 | 150 | |
duke@1 | 151 | /** Switch: Should varargs be recognized? |
duke@1 | 152 | */ |
duke@1 | 153 | boolean allowVarargs; |
duke@1 | 154 | |
duke@1 | 155 | /** Switch: should we recognize assert statements, or just give a warning? |
duke@1 | 156 | */ |
duke@1 | 157 | boolean allowAsserts; |
duke@1 | 158 | |
duke@1 | 159 | /** Switch: should we recognize enums, or just give a warning? |
duke@1 | 160 | */ |
duke@1 | 161 | boolean allowEnums; |
duke@1 | 162 | |
duke@1 | 163 | /** Switch: should we recognize foreach? |
duke@1 | 164 | */ |
duke@1 | 165 | boolean allowForeach; |
duke@1 | 166 | |
duke@1 | 167 | /** Switch: should we recognize foreach? |
duke@1 | 168 | */ |
duke@1 | 169 | boolean allowStaticImport; |
duke@1 | 170 | |
duke@1 | 171 | /** Switch: should we recognize annotations? |
duke@1 | 172 | */ |
duke@1 | 173 | boolean allowAnnotations; |
duke@1 | 174 | |
jjg@308 | 175 | /** Switch: should we recognize type annotations? |
jjg@308 | 176 | */ |
jjg@308 | 177 | boolean allowTypeAnnotations; |
jjg@308 | 178 | |
duke@1 | 179 | /** Switch: should we keep docComments? |
duke@1 | 180 | */ |
duke@1 | 181 | boolean keepDocComments; |
duke@1 | 182 | |
jjg@111 | 183 | /** Switch: should we keep line table? |
jjg@111 | 184 | */ |
jjg@111 | 185 | boolean keepLineMap; |
jjg@111 | 186 | |
duke@1 | 187 | /** When terms are parsed, the mode determines which is expected: |
duke@1 | 188 | * mode = EXPR : an expression |
duke@1 | 189 | * mode = TYPE : a type |
duke@1 | 190 | * mode = NOPARAMS : no parameters allowed for type |
duke@1 | 191 | * mode = TYPEARG : type argument |
duke@1 | 192 | */ |
duke@1 | 193 | static final int EXPR = 1; |
duke@1 | 194 | static final int TYPE = 2; |
duke@1 | 195 | static final int NOPARAMS = 4; |
duke@1 | 196 | static final int TYPEARG = 8; |
duke@1 | 197 | |
duke@1 | 198 | /** The current mode. |
duke@1 | 199 | */ |
duke@1 | 200 | private int mode = 0; |
duke@1 | 201 | |
duke@1 | 202 | /** The mode of the term that was parsed last. |
duke@1 | 203 | */ |
duke@1 | 204 | private int lastmode = 0; |
duke@1 | 205 | |
duke@1 | 206 | /* ---------- error recovery -------------- */ |
duke@1 | 207 | |
duke@1 | 208 | private JCErroneous errorTree; |
duke@1 | 209 | |
duke@1 | 210 | /** Skip forward until a suitable stop token is found. |
duke@1 | 211 | */ |
duke@1 | 212 | private void skip(boolean stopAtImport, boolean stopAtMemberDecl, boolean stopAtIdentifier, boolean stopAtStatement) { |
duke@1 | 213 | while (true) { |
duke@1 | 214 | switch (S.token()) { |
duke@1 | 215 | case SEMI: |
duke@1 | 216 | S.nextToken(); |
duke@1 | 217 | return; |
duke@1 | 218 | case PUBLIC: |
duke@1 | 219 | case FINAL: |
duke@1 | 220 | case ABSTRACT: |
duke@1 | 221 | case MONKEYS_AT: |
duke@1 | 222 | case EOF: |
duke@1 | 223 | case CLASS: |
duke@1 | 224 | case INTERFACE: |
duke@1 | 225 | case ENUM: |
duke@1 | 226 | return; |
duke@1 | 227 | case IMPORT: |
duke@1 | 228 | if (stopAtImport) |
duke@1 | 229 | return; |
duke@1 | 230 | break; |
duke@1 | 231 | case LBRACE: |
duke@1 | 232 | case RBRACE: |
duke@1 | 233 | case PRIVATE: |
duke@1 | 234 | case PROTECTED: |
duke@1 | 235 | case STATIC: |
duke@1 | 236 | case TRANSIENT: |
duke@1 | 237 | case NATIVE: |
duke@1 | 238 | case VOLATILE: |
duke@1 | 239 | case SYNCHRONIZED: |
duke@1 | 240 | case STRICTFP: |
duke@1 | 241 | case LT: |
duke@1 | 242 | case BYTE: |
duke@1 | 243 | case SHORT: |
duke@1 | 244 | case CHAR: |
duke@1 | 245 | case INT: |
duke@1 | 246 | case LONG: |
duke@1 | 247 | case FLOAT: |
duke@1 | 248 | case DOUBLE: |
duke@1 | 249 | case BOOLEAN: |
duke@1 | 250 | case VOID: |
duke@1 | 251 | if (stopAtMemberDecl) |
duke@1 | 252 | return; |
duke@1 | 253 | break; |
duke@1 | 254 | case IDENTIFIER: |
duke@1 | 255 | if (stopAtIdentifier) |
duke@1 | 256 | return; |
duke@1 | 257 | break; |
duke@1 | 258 | case CASE: |
duke@1 | 259 | case DEFAULT: |
duke@1 | 260 | case IF: |
duke@1 | 261 | case FOR: |
duke@1 | 262 | case WHILE: |
duke@1 | 263 | case DO: |
duke@1 | 264 | case TRY: |
duke@1 | 265 | case SWITCH: |
duke@1 | 266 | case RETURN: |
duke@1 | 267 | case THROW: |
duke@1 | 268 | case BREAK: |
duke@1 | 269 | case CONTINUE: |
duke@1 | 270 | case ELSE: |
duke@1 | 271 | case FINALLY: |
duke@1 | 272 | case CATCH: |
duke@1 | 273 | if (stopAtStatement) |
duke@1 | 274 | return; |
duke@1 | 275 | break; |
duke@1 | 276 | } |
duke@1 | 277 | S.nextToken(); |
duke@1 | 278 | } |
duke@1 | 279 | } |
duke@1 | 280 | |
mcimadamore@80 | 281 | private JCErroneous syntaxError(int pos, String key, Token... args) { |
mcimadamore@80 | 282 | return syntaxError(pos, null, key, args); |
duke@1 | 283 | } |
duke@1 | 284 | |
mcimadamore@80 | 285 | private JCErroneous syntaxError(int pos, List<JCTree> errs, String key, Token... args) { |
duke@1 | 286 | setErrorEndPos(pos); |
mcimadamore@80 | 287 | reportSyntaxError(pos, key, (Object[])args); |
duke@1 | 288 | return toP(F.at(pos).Erroneous(errs)); |
duke@1 | 289 | } |
duke@1 | 290 | |
duke@1 | 291 | private int errorPos = Position.NOPOS; |
duke@1 | 292 | /** |
duke@1 | 293 | * Report a syntax error at given position using the given |
duke@1 | 294 | * argument unless one was already reported at the same position. |
duke@1 | 295 | */ |
mcimadamore@80 | 296 | private void reportSyntaxError(int pos, String key, Object... args) { |
duke@1 | 297 | if (pos > S.errPos() || pos == Position.NOPOS) { |
duke@1 | 298 | if (S.token() == EOF) |
duke@1 | 299 | log.error(pos, "premature.eof"); |
duke@1 | 300 | else |
mcimadamore@80 | 301 | log.error(pos, key, args); |
duke@1 | 302 | } |
duke@1 | 303 | S.errPos(pos); |
duke@1 | 304 | if (S.pos() == errorPos) |
duke@1 | 305 | S.nextToken(); // guarantee progress |
duke@1 | 306 | errorPos = S.pos(); |
duke@1 | 307 | } |
duke@1 | 308 | |
duke@1 | 309 | |
duke@1 | 310 | /** Generate a syntax error at current position unless one was already |
duke@1 | 311 | * reported at the same position. |
duke@1 | 312 | */ |
duke@1 | 313 | private JCErroneous syntaxError(String key) { |
duke@1 | 314 | return syntaxError(S.pos(), key); |
duke@1 | 315 | } |
duke@1 | 316 | |
duke@1 | 317 | /** Generate a syntax error at current position unless one was |
duke@1 | 318 | * already reported at the same position. |
duke@1 | 319 | */ |
mcimadamore@80 | 320 | private JCErroneous syntaxError(String key, Token arg) { |
duke@1 | 321 | return syntaxError(S.pos(), key, arg); |
duke@1 | 322 | } |
duke@1 | 323 | |
duke@1 | 324 | /** If next input token matches given token, skip it, otherwise report |
duke@1 | 325 | * an error. |
duke@1 | 326 | */ |
duke@1 | 327 | public void accept(Token token) { |
duke@1 | 328 | if (S.token() == token) { |
duke@1 | 329 | S.nextToken(); |
duke@1 | 330 | } else { |
duke@1 | 331 | setErrorEndPos(S.pos()); |
mcimadamore@80 | 332 | reportSyntaxError(S.prevEndPos(), "expected", token); |
duke@1 | 333 | } |
duke@1 | 334 | } |
duke@1 | 335 | |
duke@1 | 336 | /** Report an illegal start of expression/type error at given position. |
duke@1 | 337 | */ |
duke@1 | 338 | JCExpression illegal(int pos) { |
duke@1 | 339 | setErrorEndPos(S.pos()); |
duke@1 | 340 | if ((mode & EXPR) != 0) |
duke@1 | 341 | return syntaxError(pos, "illegal.start.of.expr"); |
duke@1 | 342 | else |
duke@1 | 343 | return syntaxError(pos, "illegal.start.of.type"); |
duke@1 | 344 | |
duke@1 | 345 | } |
duke@1 | 346 | |
duke@1 | 347 | /** Report an illegal start of expression/type error at current position. |
duke@1 | 348 | */ |
duke@1 | 349 | JCExpression illegal() { |
duke@1 | 350 | return illegal(S.pos()); |
duke@1 | 351 | } |
duke@1 | 352 | |
duke@1 | 353 | /** Diagnose a modifier flag from the set, if any. */ |
duke@1 | 354 | void checkNoMods(long mods) { |
duke@1 | 355 | if (mods != 0) { |
duke@1 | 356 | long lowestMod = mods & -mods; |
duke@1 | 357 | log.error(S.pos(), "mod.not.allowed.here", |
mcimadamore@80 | 358 | Flags.asFlagSet(lowestMod)); |
duke@1 | 359 | } |
duke@1 | 360 | } |
duke@1 | 361 | |
duke@1 | 362 | /* ---------- doc comments --------- */ |
duke@1 | 363 | |
duke@1 | 364 | /** A hashtable to store all documentation comments |
duke@1 | 365 | * indexed by the tree nodes they refer to. |
duke@1 | 366 | * defined only if option flag keepDocComment is set. |
duke@1 | 367 | */ |
duke@1 | 368 | Map<JCTree, String> docComments; |
duke@1 | 369 | |
duke@1 | 370 | /** Make an entry into docComments hashtable, |
duke@1 | 371 | * provided flag keepDocComments is set and given doc comment is non-null. |
duke@1 | 372 | * @param tree The tree to be used as index in the hashtable |
duke@1 | 373 | * @param dc The doc comment to associate with the tree, or null. |
duke@1 | 374 | */ |
duke@1 | 375 | void attach(JCTree tree, String dc) { |
duke@1 | 376 | if (keepDocComments && dc != null) { |
duke@1 | 377 | // System.out.println("doc comment = ");System.out.println(dc);//DEBUG |
duke@1 | 378 | docComments.put(tree, dc); |
duke@1 | 379 | } |
duke@1 | 380 | } |
duke@1 | 381 | |
duke@1 | 382 | /* -------- source positions ------- */ |
duke@1 | 383 | |
duke@1 | 384 | private int errorEndPos = -1; |
duke@1 | 385 | |
duke@1 | 386 | private void setErrorEndPos(int errPos) { |
duke@1 | 387 | if (errPos > errorEndPos) |
duke@1 | 388 | errorEndPos = errPos; |
duke@1 | 389 | } |
duke@1 | 390 | |
duke@1 | 391 | protected int getErrorEndPos() { |
duke@1 | 392 | return errorEndPos; |
duke@1 | 393 | } |
duke@1 | 394 | |
duke@1 | 395 | /** |
duke@1 | 396 | * Store ending position for a tree. |
duke@1 | 397 | * @param tree The tree. |
duke@1 | 398 | * @param endpos The ending position to associate with the tree. |
duke@1 | 399 | */ |
duke@1 | 400 | protected void storeEnd(JCTree tree, int endpos) {} |
duke@1 | 401 | |
duke@1 | 402 | /** |
duke@1 | 403 | * Store ending position for a tree. The ending position should |
duke@1 | 404 | * be the ending position of the current token. |
duke@1 | 405 | * @param t The tree. |
duke@1 | 406 | */ |
duke@1 | 407 | protected <T extends JCTree> T to(T t) { return t; } |
duke@1 | 408 | |
duke@1 | 409 | /** |
duke@1 | 410 | * Store ending position for a tree. The ending position should |
duke@1 | 411 | * be greater of the ending position of the previous token and errorEndPos. |
duke@1 | 412 | * @param t The tree. |
duke@1 | 413 | */ |
duke@1 | 414 | protected <T extends JCTree> T toP(T t) { return t; } |
duke@1 | 415 | |
duke@1 | 416 | /** Get the start position for a tree node. The start position is |
duke@1 | 417 | * defined to be the position of the first character of the first |
duke@1 | 418 | * token of the node's source text. |
duke@1 | 419 | * @param tree The tree node |
duke@1 | 420 | */ |
duke@1 | 421 | public int getStartPos(JCTree tree) { |
duke@1 | 422 | return TreeInfo.getStartPos(tree); |
duke@1 | 423 | } |
duke@1 | 424 | |
duke@1 | 425 | /** |
duke@1 | 426 | * Get the end position for a tree node. The end position is |
duke@1 | 427 | * defined to be the position of the last character of the last |
duke@1 | 428 | * token of the node's source text. Returns Position.NOPOS if end |
duke@1 | 429 | * positions are not generated or the position is otherwise not |
duke@1 | 430 | * found. |
duke@1 | 431 | * @param tree The tree node |
duke@1 | 432 | */ |
duke@1 | 433 | public int getEndPos(JCTree tree) { |
duke@1 | 434 | return Position.NOPOS; |
duke@1 | 435 | } |
duke@1 | 436 | |
duke@1 | 437 | |
duke@1 | 438 | |
duke@1 | 439 | /* ---------- parsing -------------- */ |
duke@1 | 440 | |
duke@1 | 441 | /** |
duke@1 | 442 | * Ident = IDENTIFIER |
duke@1 | 443 | */ |
duke@1 | 444 | Name ident() { |
duke@1 | 445 | if (S.token() == IDENTIFIER) { |
duke@1 | 446 | Name name = S.name(); |
duke@1 | 447 | S.nextToken(); |
duke@1 | 448 | return name; |
duke@1 | 449 | } else if (S.token() == ASSERT) { |
duke@1 | 450 | if (allowAsserts) { |
duke@1 | 451 | log.error(S.pos(), "assert.as.identifier"); |
duke@1 | 452 | S.nextToken(); |
duke@1 | 453 | return names.error; |
duke@1 | 454 | } else { |
duke@1 | 455 | log.warning(S.pos(), "assert.as.identifier"); |
duke@1 | 456 | Name name = S.name(); |
duke@1 | 457 | S.nextToken(); |
duke@1 | 458 | return name; |
duke@1 | 459 | } |
duke@1 | 460 | } else if (S.token() == ENUM) { |
duke@1 | 461 | if (allowEnums) { |
duke@1 | 462 | log.error(S.pos(), "enum.as.identifier"); |
duke@1 | 463 | S.nextToken(); |
duke@1 | 464 | return names.error; |
duke@1 | 465 | } else { |
duke@1 | 466 | log.warning(S.pos(), "enum.as.identifier"); |
duke@1 | 467 | Name name = S.name(); |
duke@1 | 468 | S.nextToken(); |
duke@1 | 469 | return name; |
duke@1 | 470 | } |
duke@1 | 471 | } else { |
duke@1 | 472 | accept(IDENTIFIER); |
duke@1 | 473 | return names.error; |
duke@1 | 474 | } |
duke@1 | 475 | } |
duke@1 | 476 | |
duke@1 | 477 | /** |
duke@1 | 478 | * Qualident = Ident { DOT Ident } |
duke@1 | 479 | */ |
duke@1 | 480 | public JCExpression qualident() { |
duke@1 | 481 | JCExpression t = toP(F.at(S.pos()).Ident(ident())); |
duke@1 | 482 | while (S.token() == DOT) { |
duke@1 | 483 | int pos = S.pos(); |
duke@1 | 484 | S.nextToken(); |
duke@1 | 485 | t = toP(F.at(pos).Select(t, ident())); |
duke@1 | 486 | } |
duke@1 | 487 | return t; |
duke@1 | 488 | } |
duke@1 | 489 | |
duke@1 | 490 | /** |
duke@1 | 491 | * Literal = |
duke@1 | 492 | * INTLITERAL |
duke@1 | 493 | * | LONGLITERAL |
duke@1 | 494 | * | FLOATLITERAL |
duke@1 | 495 | * | DOUBLELITERAL |
duke@1 | 496 | * | CHARLITERAL |
duke@1 | 497 | * | STRINGLITERAL |
duke@1 | 498 | * | TRUE |
duke@1 | 499 | * | FALSE |
duke@1 | 500 | * | NULL |
duke@1 | 501 | */ |
duke@1 | 502 | JCExpression literal(Name prefix) { |
duke@1 | 503 | int pos = S.pos(); |
duke@1 | 504 | JCExpression t = errorTree; |
duke@1 | 505 | switch (S.token()) { |
duke@1 | 506 | case INTLITERAL: |
duke@1 | 507 | try { |
duke@1 | 508 | t = F.at(pos).Literal( |
duke@1 | 509 | TypeTags.INT, |
duke@1 | 510 | Convert.string2int(strval(prefix), S.radix())); |
duke@1 | 511 | } catch (NumberFormatException ex) { |
duke@1 | 512 | log.error(S.pos(), "int.number.too.large", strval(prefix)); |
duke@1 | 513 | } |
duke@1 | 514 | break; |
duke@1 | 515 | case LONGLITERAL: |
duke@1 | 516 | try { |
duke@1 | 517 | t = F.at(pos).Literal( |
duke@1 | 518 | TypeTags.LONG, |
duke@1 | 519 | new Long(Convert.string2long(strval(prefix), S.radix()))); |
duke@1 | 520 | } catch (NumberFormatException ex) { |
duke@1 | 521 | log.error(S.pos(), "int.number.too.large", strval(prefix)); |
duke@1 | 522 | } |
duke@1 | 523 | break; |
duke@1 | 524 | case FLOATLITERAL: { |
duke@1 | 525 | String proper = (S.radix() == 16 ? ("0x"+ S.stringVal()) : S.stringVal()); |
duke@1 | 526 | Float n; |
duke@1 | 527 | try { |
duke@1 | 528 | n = Float.valueOf(proper); |
duke@1 | 529 | } catch (NumberFormatException ex) { |
duke@1 | 530 | // error already repoted in scanner |
duke@1 | 531 | n = Float.NaN; |
duke@1 | 532 | } |
duke@1 | 533 | if (n.floatValue() == 0.0f && !isZero(proper)) |
duke@1 | 534 | log.error(S.pos(), "fp.number.too.small"); |
duke@1 | 535 | else if (n.floatValue() == Float.POSITIVE_INFINITY) |
duke@1 | 536 | log.error(S.pos(), "fp.number.too.large"); |
duke@1 | 537 | else |
duke@1 | 538 | t = F.at(pos).Literal(TypeTags.FLOAT, n); |
duke@1 | 539 | break; |
duke@1 | 540 | } |
duke@1 | 541 | case DOUBLELITERAL: { |
duke@1 | 542 | String proper = (S.radix() == 16 ? ("0x"+ S.stringVal()) : S.stringVal()); |
duke@1 | 543 | Double n; |
duke@1 | 544 | try { |
duke@1 | 545 | n = Double.valueOf(proper); |
duke@1 | 546 | } catch (NumberFormatException ex) { |
duke@1 | 547 | // error already reported in scanner |
duke@1 | 548 | n = Double.NaN; |
duke@1 | 549 | } |
duke@1 | 550 | if (n.doubleValue() == 0.0d && !isZero(proper)) |
duke@1 | 551 | log.error(S.pos(), "fp.number.too.small"); |
duke@1 | 552 | else if (n.doubleValue() == Double.POSITIVE_INFINITY) |
duke@1 | 553 | log.error(S.pos(), "fp.number.too.large"); |
duke@1 | 554 | else |
duke@1 | 555 | t = F.at(pos).Literal(TypeTags.DOUBLE, n); |
duke@1 | 556 | break; |
duke@1 | 557 | } |
duke@1 | 558 | case CHARLITERAL: |
duke@1 | 559 | t = F.at(pos).Literal( |
duke@1 | 560 | TypeTags.CHAR, |
duke@1 | 561 | S.stringVal().charAt(0) + 0); |
duke@1 | 562 | break; |
duke@1 | 563 | case STRINGLITERAL: |
duke@1 | 564 | t = F.at(pos).Literal( |
duke@1 | 565 | TypeTags.CLASS, |
duke@1 | 566 | S.stringVal()); |
duke@1 | 567 | break; |
duke@1 | 568 | case TRUE: case FALSE: |
duke@1 | 569 | t = F.at(pos).Literal( |
duke@1 | 570 | TypeTags.BOOLEAN, |
duke@1 | 571 | (S.token() == TRUE ? 1 : 0)); |
duke@1 | 572 | break; |
duke@1 | 573 | case NULL: |
duke@1 | 574 | t = F.at(pos).Literal( |
duke@1 | 575 | TypeTags.BOT, |
duke@1 | 576 | null); |
duke@1 | 577 | break; |
duke@1 | 578 | default: |
duke@1 | 579 | assert false; |
duke@1 | 580 | } |
duke@1 | 581 | if (t == errorTree) |
duke@1 | 582 | t = F.at(pos).Erroneous(); |
duke@1 | 583 | storeEnd(t, S.endPos()); |
duke@1 | 584 | S.nextToken(); |
duke@1 | 585 | return t; |
duke@1 | 586 | } |
duke@1 | 587 | //where |
duke@1 | 588 | boolean isZero(String s) { |
duke@1 | 589 | char[] cs = s.toCharArray(); |
duke@1 | 590 | int base = ((Character.toLowerCase(s.charAt(1)) == 'x') ? 16 : 10); |
duke@1 | 591 | int i = ((base==16) ? 2 : 0); |
duke@1 | 592 | while (i < cs.length && (cs[i] == '0' || cs[i] == '.')) i++; |
duke@1 | 593 | return !(i < cs.length && (Character.digit(cs[i], base) > 0)); |
duke@1 | 594 | } |
duke@1 | 595 | |
duke@1 | 596 | String strval(Name prefix) { |
duke@1 | 597 | String s = S.stringVal(); |
jjg@113 | 598 | return prefix.isEmpty() ? s : prefix + s; |
duke@1 | 599 | } |
duke@1 | 600 | |
duke@1 | 601 | /** terms can be either expressions or types. |
duke@1 | 602 | */ |
jjg@111 | 603 | public JCExpression parseExpression() { |
duke@1 | 604 | return term(EXPR); |
duke@1 | 605 | } |
duke@1 | 606 | |
jjg@308 | 607 | /** |
jjg@308 | 608 | * parses (optional) type annotations followed by a type. If the |
jjg@308 | 609 | * annotations are present before the type and are not consumed during array |
jjg@308 | 610 | * parsing, this method returns a {@link JCAnnotatedType} consisting of |
jjg@308 | 611 | * these annotations and the underlying type. Otherwise, it returns the |
jjg@308 | 612 | * underlying type. |
jjg@308 | 613 | * |
jjg@308 | 614 | * <p> |
jjg@308 | 615 | * |
jjg@308 | 616 | * Note that this method sets {@code mode} to {@code TYPE} first, before |
jjg@308 | 617 | * parsing annotations. |
jjg@308 | 618 | */ |
jjg@111 | 619 | public JCExpression parseType() { |
jjg@308 | 620 | List<JCTypeAnnotation> annotations = typeAnnotationsOpt(); |
jjg@308 | 621 | return parseType(annotations); |
jjg@308 | 622 | } |
jjg@308 | 623 | |
jjg@308 | 624 | public JCExpression parseType(List<JCTypeAnnotation> annotations) { |
jjg@308 | 625 | JCExpression result = unannotatedType(); |
jjg@308 | 626 | |
jjg@308 | 627 | if (!annotations.isEmpty()) |
jjg@308 | 628 | result = F.AnnotatedType(annotations, result); |
jjg@308 | 629 | |
jjg@308 | 630 | return result; |
jjg@308 | 631 | } |
jjg@308 | 632 | |
jjg@308 | 633 | public JCExpression unannotatedType() { |
duke@1 | 634 | return term(TYPE); |
duke@1 | 635 | } |
duke@1 | 636 | |
duke@1 | 637 | JCExpression term(int newmode) { |
duke@1 | 638 | int prevmode = mode; |
duke@1 | 639 | mode = newmode; |
duke@1 | 640 | JCExpression t = term(); |
duke@1 | 641 | lastmode = mode; |
duke@1 | 642 | mode = prevmode; |
duke@1 | 643 | return t; |
duke@1 | 644 | } |
duke@1 | 645 | |
duke@1 | 646 | /** |
duke@1 | 647 | * Expression = Expression1 [ExpressionRest] |
duke@1 | 648 | * ExpressionRest = [AssignmentOperator Expression1] |
duke@1 | 649 | * AssignmentOperator = "=" | "+=" | "-=" | "*=" | "/=" | |
duke@1 | 650 | * "&=" | "|=" | "^=" | |
duke@1 | 651 | * "%=" | "<<=" | ">>=" | ">>>=" |
duke@1 | 652 | * Type = Type1 |
duke@1 | 653 | * TypeNoParams = TypeNoParams1 |
duke@1 | 654 | * StatementExpression = Expression |
duke@1 | 655 | * ConstantExpression = Expression |
duke@1 | 656 | */ |
duke@1 | 657 | JCExpression term() { |
duke@1 | 658 | JCExpression t = term1(); |
duke@1 | 659 | if ((mode & EXPR) != 0 && |
duke@1 | 660 | S.token() == EQ || PLUSEQ.compareTo(S.token()) <= 0 && S.token().compareTo(GTGTGTEQ) <= 0) |
duke@1 | 661 | return termRest(t); |
duke@1 | 662 | else |
duke@1 | 663 | return t; |
duke@1 | 664 | } |
duke@1 | 665 | |
duke@1 | 666 | JCExpression termRest(JCExpression t) { |
duke@1 | 667 | switch (S.token()) { |
duke@1 | 668 | case EQ: { |
duke@1 | 669 | int pos = S.pos(); |
duke@1 | 670 | S.nextToken(); |
duke@1 | 671 | mode = EXPR; |
duke@1 | 672 | JCExpression t1 = term(); |
duke@1 | 673 | return toP(F.at(pos).Assign(t, t1)); |
duke@1 | 674 | } |
duke@1 | 675 | case PLUSEQ: |
duke@1 | 676 | case SUBEQ: |
duke@1 | 677 | case STAREQ: |
duke@1 | 678 | case SLASHEQ: |
duke@1 | 679 | case PERCENTEQ: |
duke@1 | 680 | case AMPEQ: |
duke@1 | 681 | case BAREQ: |
duke@1 | 682 | case CARETEQ: |
duke@1 | 683 | case LTLTEQ: |
duke@1 | 684 | case GTGTEQ: |
duke@1 | 685 | case GTGTGTEQ: |
duke@1 | 686 | int pos = S.pos(); |
duke@1 | 687 | Token token = S.token(); |
duke@1 | 688 | S.nextToken(); |
duke@1 | 689 | mode = EXPR; |
duke@1 | 690 | JCExpression t1 = term(); |
duke@1 | 691 | return F.at(pos).Assignop(optag(token), t, t1); |
duke@1 | 692 | default: |
duke@1 | 693 | return t; |
duke@1 | 694 | } |
duke@1 | 695 | } |
duke@1 | 696 | |
duke@1 | 697 | /** Expression1 = Expression2 [Expression1Rest] |
duke@1 | 698 | * Type1 = Type2 |
duke@1 | 699 | * TypeNoParams1 = TypeNoParams2 |
duke@1 | 700 | */ |
duke@1 | 701 | JCExpression term1() { |
duke@1 | 702 | JCExpression t = term2(); |
duke@1 | 703 | if ((mode & EXPR) != 0 && S.token() == QUES) { |
duke@1 | 704 | mode = EXPR; |
duke@1 | 705 | return term1Rest(t); |
duke@1 | 706 | } else { |
duke@1 | 707 | return t; |
duke@1 | 708 | } |
duke@1 | 709 | } |
duke@1 | 710 | |
duke@1 | 711 | /** Expression1Rest = ["?" Expression ":" Expression1] |
duke@1 | 712 | */ |
duke@1 | 713 | JCExpression term1Rest(JCExpression t) { |
duke@1 | 714 | if (S.token() == QUES) { |
duke@1 | 715 | int pos = S.pos(); |
duke@1 | 716 | S.nextToken(); |
duke@1 | 717 | JCExpression t1 = term(); |
duke@1 | 718 | accept(COLON); |
duke@1 | 719 | JCExpression t2 = term1(); |
duke@1 | 720 | return F.at(pos).Conditional(t, t1, t2); |
duke@1 | 721 | } else { |
duke@1 | 722 | return t; |
duke@1 | 723 | } |
duke@1 | 724 | } |
duke@1 | 725 | |
duke@1 | 726 | /** Expression2 = Expression3 [Expression2Rest] |
duke@1 | 727 | * Type2 = Type3 |
duke@1 | 728 | * TypeNoParams2 = TypeNoParams3 |
duke@1 | 729 | */ |
duke@1 | 730 | JCExpression term2() { |
duke@1 | 731 | JCExpression t = term3(); |
duke@1 | 732 | if ((mode & EXPR) != 0 && prec(S.token()) >= TreeInfo.orPrec) { |
duke@1 | 733 | mode = EXPR; |
duke@1 | 734 | return term2Rest(t, TreeInfo.orPrec); |
duke@1 | 735 | } else { |
duke@1 | 736 | return t; |
duke@1 | 737 | } |
duke@1 | 738 | } |
duke@1 | 739 | |
duke@1 | 740 | /* Expression2Rest = {infixop Expression3} |
duke@1 | 741 | * | Expression3 instanceof Type |
duke@1 | 742 | * infixop = "||" |
duke@1 | 743 | * | "&&" |
duke@1 | 744 | * | "|" |
duke@1 | 745 | * | "^" |
duke@1 | 746 | * | "&" |
duke@1 | 747 | * | "==" | "!=" |
duke@1 | 748 | * | "<" | ">" | "<=" | ">=" |
duke@1 | 749 | * | "<<" | ">>" | ">>>" |
duke@1 | 750 | * | "+" | "-" |
duke@1 | 751 | * | "*" | "/" | "%" |
duke@1 | 752 | */ |
duke@1 | 753 | JCExpression term2Rest(JCExpression t, int minprec) { |
duke@1 | 754 | List<JCExpression[]> savedOd = odStackSupply.elems; |
duke@1 | 755 | JCExpression[] odStack = newOdStack(); |
duke@1 | 756 | List<Token[]> savedOp = opStackSupply.elems; |
duke@1 | 757 | Token[] opStack = newOpStack(); |
duke@1 | 758 | // optimization, was odStack = new Tree[...]; opStack = new Tree[...]; |
duke@1 | 759 | int top = 0; |
duke@1 | 760 | odStack[0] = t; |
duke@1 | 761 | int startPos = S.pos(); |
duke@1 | 762 | Token topOp = ERROR; |
duke@1 | 763 | while (prec(S.token()) >= minprec) { |
duke@1 | 764 | opStack[top] = topOp; |
duke@1 | 765 | top++; |
duke@1 | 766 | topOp = S.token(); |
duke@1 | 767 | int pos = S.pos(); |
duke@1 | 768 | S.nextToken(); |
jjg@111 | 769 | odStack[top] = topOp == INSTANCEOF ? parseType() : term3(); |
duke@1 | 770 | while (top > 0 && prec(topOp) >= prec(S.token())) { |
duke@1 | 771 | odStack[top-1] = makeOp(pos, topOp, odStack[top-1], |
duke@1 | 772 | odStack[top]); |
duke@1 | 773 | top--; |
duke@1 | 774 | topOp = opStack[top]; |
duke@1 | 775 | } |
duke@1 | 776 | } |
duke@1 | 777 | assert top == 0; |
duke@1 | 778 | t = odStack[0]; |
duke@1 | 779 | |
duke@1 | 780 | if (t.getTag() == JCTree.PLUS) { |
duke@1 | 781 | StringBuffer buf = foldStrings(t); |
duke@1 | 782 | if (buf != null) { |
duke@1 | 783 | t = toP(F.at(startPos).Literal(TypeTags.CLASS, buf.toString())); |
duke@1 | 784 | } |
duke@1 | 785 | } |
duke@1 | 786 | |
duke@1 | 787 | odStackSupply.elems = savedOd; // optimization |
duke@1 | 788 | opStackSupply.elems = savedOp; // optimization |
duke@1 | 789 | return t; |
duke@1 | 790 | } |
duke@1 | 791 | //where |
duke@1 | 792 | /** Construct a binary or type test node. |
duke@1 | 793 | */ |
duke@1 | 794 | private JCExpression makeOp(int pos, |
duke@1 | 795 | Token topOp, |
duke@1 | 796 | JCExpression od1, |
duke@1 | 797 | JCExpression od2) |
duke@1 | 798 | { |
duke@1 | 799 | if (topOp == INSTANCEOF) { |
duke@1 | 800 | return F.at(pos).TypeTest(od1, od2); |
duke@1 | 801 | } else { |
duke@1 | 802 | return F.at(pos).Binary(optag(topOp), od1, od2); |
duke@1 | 803 | } |
duke@1 | 804 | } |
duke@1 | 805 | /** If tree is a concatenation of string literals, replace it |
duke@1 | 806 | * by a single literal representing the concatenated string. |
duke@1 | 807 | */ |
duke@1 | 808 | protected StringBuffer foldStrings(JCTree tree) { |
duke@1 | 809 | List<String> buf = List.nil(); |
duke@1 | 810 | while (true) { |
duke@1 | 811 | if (tree.getTag() == JCTree.LITERAL) { |
duke@1 | 812 | JCLiteral lit = (JCLiteral) tree; |
duke@1 | 813 | if (lit.typetag == TypeTags.CLASS) { |
duke@1 | 814 | StringBuffer sbuf = |
duke@1 | 815 | new StringBuffer((String)lit.value); |
duke@1 | 816 | while (buf.nonEmpty()) { |
duke@1 | 817 | sbuf.append(buf.head); |
duke@1 | 818 | buf = buf.tail; |
duke@1 | 819 | } |
duke@1 | 820 | return sbuf; |
duke@1 | 821 | } |
duke@1 | 822 | } else if (tree.getTag() == JCTree.PLUS) { |
duke@1 | 823 | JCBinary op = (JCBinary)tree; |
duke@1 | 824 | if (op.rhs.getTag() == JCTree.LITERAL) { |
duke@1 | 825 | JCLiteral lit = (JCLiteral) op.rhs; |
duke@1 | 826 | if (lit.typetag == TypeTags.CLASS) { |
duke@1 | 827 | buf = buf.prepend((String) lit.value); |
duke@1 | 828 | tree = op.lhs; |
duke@1 | 829 | continue; |
duke@1 | 830 | } |
duke@1 | 831 | } |
duke@1 | 832 | } |
duke@1 | 833 | return null; |
duke@1 | 834 | } |
duke@1 | 835 | } |
duke@1 | 836 | |
duke@1 | 837 | /** optimization: To save allocating a new operand/operator stack |
duke@1 | 838 | * for every binary operation, we use supplys. |
duke@1 | 839 | */ |
duke@1 | 840 | ListBuffer<JCExpression[]> odStackSupply = new ListBuffer<JCExpression[]>(); |
duke@1 | 841 | ListBuffer<Token[]> opStackSupply = new ListBuffer<Token[]>(); |
duke@1 | 842 | |
duke@1 | 843 | private JCExpression[] newOdStack() { |
duke@1 | 844 | if (odStackSupply.elems == odStackSupply.last) |
duke@1 | 845 | odStackSupply.append(new JCExpression[infixPrecedenceLevels + 1]); |
duke@1 | 846 | JCExpression[] odStack = odStackSupply.elems.head; |
duke@1 | 847 | odStackSupply.elems = odStackSupply.elems.tail; |
duke@1 | 848 | return odStack; |
duke@1 | 849 | } |
duke@1 | 850 | |
duke@1 | 851 | private Token[] newOpStack() { |
duke@1 | 852 | if (opStackSupply.elems == opStackSupply.last) |
duke@1 | 853 | opStackSupply.append(new Token[infixPrecedenceLevels + 1]); |
duke@1 | 854 | Token[] opStack = opStackSupply.elems.head; |
duke@1 | 855 | opStackSupply.elems = opStackSupply.elems.tail; |
duke@1 | 856 | return opStack; |
duke@1 | 857 | } |
duke@1 | 858 | |
duke@1 | 859 | /** Expression3 = PrefixOp Expression3 |
duke@1 | 860 | * | "(" Expr | TypeNoParams ")" Expression3 |
duke@1 | 861 | * | Primary {Selector} {PostfixOp} |
duke@1 | 862 | * Primary = "(" Expression ")" |
duke@1 | 863 | * | Literal |
duke@1 | 864 | * | [TypeArguments] THIS [Arguments] |
duke@1 | 865 | * | [TypeArguments] SUPER SuperSuffix |
duke@1 | 866 | * | NEW [TypeArguments] Creator |
jjg@308 | 867 | * | [Annotations] Ident { "." Ident } |
jjg@308 | 868 | * [ [Annotations] "[" ( "]" BracketsOpt "." CLASS | Expression "]" ) |
duke@1 | 869 | * | Arguments |
duke@1 | 870 | * | "." ( CLASS | THIS | [TypeArguments] SUPER Arguments | NEW [TypeArguments] InnerCreator ) |
duke@1 | 871 | * ] |
duke@1 | 872 | * | BasicType BracketsOpt "." CLASS |
duke@1 | 873 | * PrefixOp = "++" | "--" | "!" | "~" | "+" | "-" |
duke@1 | 874 | * PostfixOp = "++" | "--" |
duke@1 | 875 | * Type3 = Ident { "." Ident } [TypeArguments] {TypeSelector} BracketsOpt |
duke@1 | 876 | * | BasicType |
duke@1 | 877 | * TypeNoParams3 = Ident { "." Ident } BracketsOpt |
duke@1 | 878 | * Selector = "." [TypeArguments] Ident [Arguments] |
duke@1 | 879 | * | "." THIS |
duke@1 | 880 | * | "." [TypeArguments] SUPER SuperSuffix |
duke@1 | 881 | * | "." NEW [TypeArguments] InnerCreator |
duke@1 | 882 | * | "[" Expression "]" |
duke@1 | 883 | * TypeSelector = "." Ident [TypeArguments] |
duke@1 | 884 | * SuperSuffix = Arguments | "." Ident [Arguments] |
duke@1 | 885 | */ |
duke@1 | 886 | protected JCExpression term3() { |
duke@1 | 887 | int pos = S.pos(); |
duke@1 | 888 | JCExpression t; |
duke@1 | 889 | List<JCExpression> typeArgs = typeArgumentsOpt(EXPR); |
duke@1 | 890 | switch (S.token()) { |
duke@1 | 891 | case QUES: |
duke@1 | 892 | if ((mode & TYPE) != 0 && (mode & (TYPEARG|NOPARAMS)) == TYPEARG) { |
duke@1 | 893 | mode = TYPE; |
duke@1 | 894 | return typeArgument(); |
duke@1 | 895 | } else |
duke@1 | 896 | return illegal(); |
duke@1 | 897 | case PLUSPLUS: case SUBSUB: case BANG: case TILDE: case PLUS: case SUB: |
duke@1 | 898 | if (typeArgs == null && (mode & EXPR) != 0) { |
duke@1 | 899 | Token token = S.token(); |
duke@1 | 900 | S.nextToken(); |
duke@1 | 901 | mode = EXPR; |
duke@1 | 902 | if (token == SUB && |
duke@1 | 903 | (S.token() == INTLITERAL || S.token() == LONGLITERAL) && |
duke@1 | 904 | S.radix() == 10) { |
duke@1 | 905 | mode = EXPR; |
duke@1 | 906 | t = literal(names.hyphen); |
duke@1 | 907 | } else { |
duke@1 | 908 | t = term3(); |
duke@1 | 909 | return F.at(pos).Unary(unoptag(token), t); |
duke@1 | 910 | } |
duke@1 | 911 | } else return illegal(); |
duke@1 | 912 | break; |
duke@1 | 913 | case LPAREN: |
duke@1 | 914 | if (typeArgs == null && (mode & EXPR) != 0) { |
duke@1 | 915 | S.nextToken(); |
duke@1 | 916 | mode = EXPR | TYPE | NOPARAMS; |
duke@1 | 917 | t = term3(); |
duke@1 | 918 | if ((mode & TYPE) != 0 && S.token() == LT) { |
duke@1 | 919 | // Could be a cast to a parameterized type |
duke@1 | 920 | int op = JCTree.LT; |
duke@1 | 921 | int pos1 = S.pos(); |
duke@1 | 922 | S.nextToken(); |
duke@1 | 923 | mode &= (EXPR | TYPE); |
duke@1 | 924 | mode |= TYPEARG; |
duke@1 | 925 | JCExpression t1 = term3(); |
duke@1 | 926 | if ((mode & TYPE) != 0 && |
duke@1 | 927 | (S.token() == COMMA || S.token() == GT)) { |
duke@1 | 928 | mode = TYPE; |
duke@1 | 929 | ListBuffer<JCExpression> args = new ListBuffer<JCExpression>(); |
duke@1 | 930 | args.append(t1); |
duke@1 | 931 | while (S.token() == COMMA) { |
duke@1 | 932 | S.nextToken(); |
duke@1 | 933 | args.append(typeArgument()); |
duke@1 | 934 | } |
duke@1 | 935 | accept(GT); |
duke@1 | 936 | t = F.at(pos1).TypeApply(t, args.toList()); |
duke@1 | 937 | checkGenerics(); |
mcimadamore@185 | 938 | while (S.token() == DOT) { |
mcimadamore@185 | 939 | S.nextToken(); |
mcimadamore@185 | 940 | mode = TYPE; |
mcimadamore@185 | 941 | t = toP(F.at(S.pos()).Select(t, ident())); |
mcimadamore@185 | 942 | t = typeArgumentsOpt(t); |
mcimadamore@185 | 943 | } |
mcimadamore@195 | 944 | t = bracketsOpt(toP(t)); |
duke@1 | 945 | } else if ((mode & EXPR) != 0) { |
duke@1 | 946 | mode = EXPR; |
duke@1 | 947 | t = F.at(pos1).Binary(op, t, term2Rest(t1, TreeInfo.shiftPrec)); |
duke@1 | 948 | t = termRest(term1Rest(term2Rest(t, TreeInfo.orPrec))); |
duke@1 | 949 | } else { |
duke@1 | 950 | accept(GT); |
duke@1 | 951 | } |
mcimadamore@185 | 952 | } |
mcimadamore@185 | 953 | else { |
duke@1 | 954 | t = termRest(term1Rest(term2Rest(t, TreeInfo.orPrec))); |
duke@1 | 955 | } |
duke@1 | 956 | accept(RPAREN); |
duke@1 | 957 | lastmode = mode; |
duke@1 | 958 | mode = EXPR; |
duke@1 | 959 | if ((lastmode & EXPR) == 0) { |
duke@1 | 960 | JCExpression t1 = term3(); |
duke@1 | 961 | return F.at(pos).TypeCast(t, t1); |
duke@1 | 962 | } else if ((lastmode & TYPE) != 0) { |
duke@1 | 963 | switch (S.token()) { |
duke@1 | 964 | /*case PLUSPLUS: case SUBSUB: */ |
duke@1 | 965 | case BANG: case TILDE: |
duke@1 | 966 | case LPAREN: case THIS: case SUPER: |
duke@1 | 967 | case INTLITERAL: case LONGLITERAL: case FLOATLITERAL: |
duke@1 | 968 | case DOUBLELITERAL: case CHARLITERAL: case STRINGLITERAL: |
duke@1 | 969 | case TRUE: case FALSE: case NULL: |
duke@1 | 970 | case NEW: case IDENTIFIER: case ASSERT: case ENUM: |
duke@1 | 971 | case BYTE: case SHORT: case CHAR: case INT: |
duke@1 | 972 | case LONG: case FLOAT: case DOUBLE: case BOOLEAN: case VOID: |
duke@1 | 973 | JCExpression t1 = term3(); |
duke@1 | 974 | return F.at(pos).TypeCast(t, t1); |
duke@1 | 975 | } |
duke@1 | 976 | } |
duke@1 | 977 | } else return illegal(); |
duke@1 | 978 | t = toP(F.at(pos).Parens(t)); |
duke@1 | 979 | break; |
duke@1 | 980 | case THIS: |
duke@1 | 981 | if ((mode & EXPR) != 0) { |
duke@1 | 982 | mode = EXPR; |
duke@1 | 983 | t = to(F.at(pos).Ident(names._this)); |
duke@1 | 984 | S.nextToken(); |
duke@1 | 985 | if (typeArgs == null) |
duke@1 | 986 | t = argumentsOpt(null, t); |
duke@1 | 987 | else |
duke@1 | 988 | t = arguments(typeArgs, t); |
duke@1 | 989 | typeArgs = null; |
duke@1 | 990 | } else return illegal(); |
duke@1 | 991 | break; |
duke@1 | 992 | case SUPER: |
duke@1 | 993 | if ((mode & EXPR) != 0) { |
duke@1 | 994 | mode = EXPR; |
duke@1 | 995 | t = to(superSuffix(typeArgs, F.at(pos).Ident(names._super))); |
duke@1 | 996 | typeArgs = null; |
duke@1 | 997 | } else return illegal(); |
duke@1 | 998 | break; |
duke@1 | 999 | case INTLITERAL: case LONGLITERAL: case FLOATLITERAL: case DOUBLELITERAL: |
duke@1 | 1000 | case CHARLITERAL: case STRINGLITERAL: |
duke@1 | 1001 | case TRUE: case FALSE: case NULL: |
duke@1 | 1002 | if (typeArgs == null && (mode & EXPR) != 0) { |
duke@1 | 1003 | mode = EXPR; |
duke@1 | 1004 | t = literal(names.empty); |
duke@1 | 1005 | } else return illegal(); |
duke@1 | 1006 | break; |
duke@1 | 1007 | case NEW: |
duke@1 | 1008 | if (typeArgs != null) return illegal(); |
duke@1 | 1009 | if ((mode & EXPR) != 0) { |
duke@1 | 1010 | mode = EXPR; |
duke@1 | 1011 | S.nextToken(); |
duke@1 | 1012 | if (S.token() == LT) typeArgs = typeArguments(); |
duke@1 | 1013 | t = creator(pos, typeArgs); |
duke@1 | 1014 | typeArgs = null; |
duke@1 | 1015 | } else return illegal(); |
duke@1 | 1016 | break; |
jjg@308 | 1017 | case MONKEYS_AT: |
jjg@308 | 1018 | |
jjg@308 | 1019 | // only annotated targetting class literals or cast types are valid |
jjg@308 | 1020 | List<JCTypeAnnotation> typeAnnos = typeAnnotationsOpt(); |
jjg@308 | 1021 | if (typeAnnos.isEmpty()) { |
jjg@308 | 1022 | // else there would be no '@' |
jjg@308 | 1023 | throw new AssertionError("type annos is empty"); |
jjg@308 | 1024 | } |
jjg@308 | 1025 | |
jjg@308 | 1026 | JCExpression expr = term3(); |
jjg@308 | 1027 | |
jjg@308 | 1028 | // Type annotations: If term3 just parsed a non-type, expect a |
jjg@308 | 1029 | // class literal (and issue a syntax error if there is no class |
jjg@308 | 1030 | // literal). Otherwise, create a JCAnnotatedType. |
jjg@308 | 1031 | if ((mode & TYPE) == 0) { |
jjg@308 | 1032 | if (expr.getTag() != JCTree.SELECT) |
jjg@308 | 1033 | return illegal(typeAnnos.head.pos); |
jjg@308 | 1034 | JCFieldAccess sel = (JCFieldAccess)expr; |
jjg@308 | 1035 | if (sel.name != names._class) |
jjg@308 | 1036 | return illegal(); |
jjg@308 | 1037 | else { |
jjg@308 | 1038 | sel.selected = F.AnnotatedType(typeAnnos, sel.selected); |
jjg@308 | 1039 | t = expr; |
jjg@308 | 1040 | } |
jjg@308 | 1041 | } else { |
jjg@308 | 1042 | // type annotation targeting a cast |
jjg@308 | 1043 | t = toP(F.at(S.pos()).AnnotatedType(typeAnnos, expr)); |
jjg@308 | 1044 | } |
jjg@308 | 1045 | break; |
duke@1 | 1046 | case IDENTIFIER: case ASSERT: case ENUM: |
duke@1 | 1047 | if (typeArgs != null) return illegal(); |
duke@1 | 1048 | t = toP(F.at(S.pos()).Ident(ident())); |
duke@1 | 1049 | loop: while (true) { |
duke@1 | 1050 | pos = S.pos(); |
jjg@308 | 1051 | final List<JCTypeAnnotation> annos = typeAnnotationsOpt(); |
jjg@308 | 1052 | |
jjg@308 | 1053 | // need to report an error later if LBRACKET is for array |
jjg@308 | 1054 | // index access rather than array creation level |
jjg@308 | 1055 | if (!annos.isEmpty() && S.token() != LBRACKET && S.token() != ELLIPSIS) |
jjg@308 | 1056 | return illegal(annos.head.pos); |
duke@1 | 1057 | switch (S.token()) { |
duke@1 | 1058 | case LBRACKET: |
duke@1 | 1059 | S.nextToken(); |
jjg@308 | 1060 | |
duke@1 | 1061 | if (S.token() == RBRACKET) { |
jjg@308 | 1062 | |
duke@1 | 1063 | S.nextToken(); |
jjg@308 | 1064 | |
jjg@308 | 1065 | t = bracketsOpt(t, annos); |
duke@1 | 1066 | t = toP(F.at(pos).TypeArray(t)); |
duke@1 | 1067 | t = bracketsSuffix(t); |
duke@1 | 1068 | } else { |
duke@1 | 1069 | if ((mode & EXPR) != 0) { |
duke@1 | 1070 | mode = EXPR; |
duke@1 | 1071 | JCExpression t1 = term(); |
jjg@308 | 1072 | if (!annos.isEmpty()) t = illegal(annos.head.pos); |
duke@1 | 1073 | t = to(F.at(pos).Indexed(t, t1)); |
duke@1 | 1074 | } |
duke@1 | 1075 | accept(RBRACKET); |
duke@1 | 1076 | } |
duke@1 | 1077 | break loop; |
duke@1 | 1078 | case LPAREN: |
duke@1 | 1079 | if ((mode & EXPR) != 0) { |
duke@1 | 1080 | mode = EXPR; |
duke@1 | 1081 | t = arguments(typeArgs, t); |
duke@1 | 1082 | typeArgs = null; |
duke@1 | 1083 | } |
duke@1 | 1084 | break loop; |
duke@1 | 1085 | case DOT: |
duke@1 | 1086 | S.nextToken(); |
mcimadamore@26 | 1087 | int oldmode = mode; |
mcimadamore@26 | 1088 | mode &= ~NOPARAMS; |
duke@1 | 1089 | typeArgs = typeArgumentsOpt(EXPR); |
mcimadamore@26 | 1090 | mode = oldmode; |
duke@1 | 1091 | if ((mode & EXPR) != 0) { |
duke@1 | 1092 | switch (S.token()) { |
duke@1 | 1093 | case CLASS: |
duke@1 | 1094 | if (typeArgs != null) return illegal(); |
duke@1 | 1095 | mode = EXPR; |
duke@1 | 1096 | t = to(F.at(pos).Select(t, names._class)); |
duke@1 | 1097 | S.nextToken(); |
duke@1 | 1098 | break loop; |
duke@1 | 1099 | case THIS: |
duke@1 | 1100 | if (typeArgs != null) return illegal(); |
duke@1 | 1101 | mode = EXPR; |
duke@1 | 1102 | t = to(F.at(pos).Select(t, names._this)); |
duke@1 | 1103 | S.nextToken(); |
duke@1 | 1104 | break loop; |
duke@1 | 1105 | case SUPER: |
duke@1 | 1106 | mode = EXPR; |
duke@1 | 1107 | t = to(F.at(pos).Select(t, names._super)); |
duke@1 | 1108 | t = superSuffix(typeArgs, t); |
duke@1 | 1109 | typeArgs = null; |
duke@1 | 1110 | break loop; |
duke@1 | 1111 | case NEW: |
duke@1 | 1112 | if (typeArgs != null) return illegal(); |
duke@1 | 1113 | mode = EXPR; |
duke@1 | 1114 | int pos1 = S.pos(); |
duke@1 | 1115 | S.nextToken(); |
duke@1 | 1116 | if (S.token() == LT) typeArgs = typeArguments(); |
duke@1 | 1117 | t = innerCreator(pos1, typeArgs, t); |
duke@1 | 1118 | typeArgs = null; |
duke@1 | 1119 | break loop; |
duke@1 | 1120 | } |
duke@1 | 1121 | } |
duke@1 | 1122 | // typeArgs saved for next loop iteration. |
duke@1 | 1123 | t = toP(F.at(pos).Select(t, ident())); |
duke@1 | 1124 | break; |
jjg@308 | 1125 | case ELLIPSIS: |
jjg@308 | 1126 | assert this.permitTypeAnnotationsPushBack; |
jjg@308 | 1127 | typeAnnotationsPushedBack = annos; |
jjg@308 | 1128 | break loop; |
duke@1 | 1129 | default: |
duke@1 | 1130 | break loop; |
duke@1 | 1131 | } |
duke@1 | 1132 | } |
duke@1 | 1133 | if (typeArgs != null) illegal(); |
duke@1 | 1134 | t = typeArgumentsOpt(t); |
duke@1 | 1135 | break; |
duke@1 | 1136 | case BYTE: case SHORT: case CHAR: case INT: case LONG: case FLOAT: |
duke@1 | 1137 | case DOUBLE: case BOOLEAN: |
duke@1 | 1138 | if (typeArgs != null) illegal(); |
duke@1 | 1139 | t = bracketsSuffix(bracketsOpt(basicType())); |
duke@1 | 1140 | break; |
duke@1 | 1141 | case VOID: |
duke@1 | 1142 | if (typeArgs != null) illegal(); |
duke@1 | 1143 | if ((mode & EXPR) != 0) { |
duke@1 | 1144 | S.nextToken(); |
duke@1 | 1145 | if (S.token() == DOT) { |
duke@1 | 1146 | JCPrimitiveTypeTree ti = toP(F.at(pos).TypeIdent(TypeTags.VOID)); |
duke@1 | 1147 | t = bracketsSuffix(ti); |
duke@1 | 1148 | } else { |
duke@1 | 1149 | return illegal(pos); |
duke@1 | 1150 | } |
duke@1 | 1151 | } else { |
jrose@267 | 1152 | // Support the corner case of myMethodHandle.<void>invoke() by passing |
jrose@267 | 1153 | // a void type (like other primitive types) to the next phase. |
jrose@267 | 1154 | // The error will be reported in Attr.attribTypes or Attr.visitApply. |
jrose@267 | 1155 | JCPrimitiveTypeTree ti = to(F.at(pos).TypeIdent(TypeTags.VOID)); |
jrose@267 | 1156 | S.nextToken(); |
jrose@267 | 1157 | return ti; |
jrose@267 | 1158 | //return illegal(); |
duke@1 | 1159 | } |
duke@1 | 1160 | break; |
duke@1 | 1161 | default: |
duke@1 | 1162 | return illegal(); |
duke@1 | 1163 | } |
duke@1 | 1164 | if (typeArgs != null) illegal(); |
duke@1 | 1165 | while (true) { |
duke@1 | 1166 | int pos1 = S.pos(); |
jjg@308 | 1167 | |
jjg@308 | 1168 | final List<JCTypeAnnotation> annos = typeAnnotationsOpt(); |
jjg@308 | 1169 | |
duke@1 | 1170 | if (S.token() == LBRACKET) { |
duke@1 | 1171 | S.nextToken(); |
jjg@308 | 1172 | |
duke@1 | 1173 | if ((mode & TYPE) != 0) { |
duke@1 | 1174 | int oldmode = mode; |
duke@1 | 1175 | mode = TYPE; |
duke@1 | 1176 | if (S.token() == RBRACKET) { |
duke@1 | 1177 | S.nextToken(); |
jjg@308 | 1178 | t = bracketsOpt(t, annos); |
duke@1 | 1179 | t = toP(F.at(pos1).TypeArray(t)); |
duke@1 | 1180 | return t; |
duke@1 | 1181 | } |
duke@1 | 1182 | mode = oldmode; |
duke@1 | 1183 | } |
duke@1 | 1184 | if ((mode & EXPR) != 0) { |
duke@1 | 1185 | mode = EXPR; |
duke@1 | 1186 | JCExpression t1 = term(); |
duke@1 | 1187 | t = to(F.at(pos1).Indexed(t, t1)); |
duke@1 | 1188 | } |
duke@1 | 1189 | accept(RBRACKET); |
duke@1 | 1190 | } else if (S.token() == DOT) { |
duke@1 | 1191 | S.nextToken(); |
duke@1 | 1192 | typeArgs = typeArgumentsOpt(EXPR); |
duke@1 | 1193 | if (S.token() == SUPER && (mode & EXPR) != 0) { |
duke@1 | 1194 | mode = EXPR; |
duke@1 | 1195 | t = to(F.at(pos1).Select(t, names._super)); |
duke@1 | 1196 | S.nextToken(); |
duke@1 | 1197 | t = arguments(typeArgs, t); |
duke@1 | 1198 | typeArgs = null; |
duke@1 | 1199 | } else if (S.token() == NEW && (mode & EXPR) != 0) { |
duke@1 | 1200 | if (typeArgs != null) return illegal(); |
duke@1 | 1201 | mode = EXPR; |
duke@1 | 1202 | int pos2 = S.pos(); |
duke@1 | 1203 | S.nextToken(); |
duke@1 | 1204 | if (S.token() == LT) typeArgs = typeArguments(); |
duke@1 | 1205 | t = innerCreator(pos2, typeArgs, t); |
duke@1 | 1206 | typeArgs = null; |
duke@1 | 1207 | } else { |
duke@1 | 1208 | t = toP(F.at(pos1).Select(t, ident())); |
duke@1 | 1209 | t = argumentsOpt(typeArgs, typeArgumentsOpt(t)); |
duke@1 | 1210 | typeArgs = null; |
duke@1 | 1211 | } |
duke@1 | 1212 | } else { |
jjg@308 | 1213 | if (!annos.isEmpty()) { |
jjg@308 | 1214 | if (permitTypeAnnotationsPushBack) |
jjg@308 | 1215 | typeAnnotationsPushedBack = annos; |
jjg@308 | 1216 | else |
jjg@308 | 1217 | return illegal(annos.head.pos); |
jjg@308 | 1218 | } |
duke@1 | 1219 | break; |
duke@1 | 1220 | } |
duke@1 | 1221 | } |
duke@1 | 1222 | while ((S.token() == PLUSPLUS || S.token() == SUBSUB) && (mode & EXPR) != 0) { |
duke@1 | 1223 | mode = EXPR; |
duke@1 | 1224 | t = to(F.at(S.pos()).Unary( |
duke@1 | 1225 | S.token() == PLUSPLUS ? JCTree.POSTINC : JCTree.POSTDEC, t)); |
duke@1 | 1226 | S.nextToken(); |
duke@1 | 1227 | } |
jjg@308 | 1228 | |
duke@1 | 1229 | return toP(t); |
duke@1 | 1230 | } |
duke@1 | 1231 | |
duke@1 | 1232 | /** SuperSuffix = Arguments | "." [TypeArguments] Ident [Arguments] |
duke@1 | 1233 | */ |
duke@1 | 1234 | JCExpression superSuffix(List<JCExpression> typeArgs, JCExpression t) { |
duke@1 | 1235 | S.nextToken(); |
duke@1 | 1236 | if (S.token() == LPAREN || typeArgs != null) { |
duke@1 | 1237 | t = arguments(typeArgs, t); |
duke@1 | 1238 | } else { |
duke@1 | 1239 | int pos = S.pos(); |
duke@1 | 1240 | accept(DOT); |
duke@1 | 1241 | typeArgs = (S.token() == LT) ? typeArguments() : null; |
duke@1 | 1242 | t = toP(F.at(pos).Select(t, ident())); |
duke@1 | 1243 | t = argumentsOpt(typeArgs, t); |
duke@1 | 1244 | } |
duke@1 | 1245 | return t; |
duke@1 | 1246 | } |
duke@1 | 1247 | |
duke@1 | 1248 | /** BasicType = BYTE | SHORT | CHAR | INT | LONG | FLOAT | DOUBLE | BOOLEAN |
duke@1 | 1249 | */ |
duke@1 | 1250 | JCPrimitiveTypeTree basicType() { |
duke@1 | 1251 | JCPrimitiveTypeTree t = to(F.at(S.pos()).TypeIdent(typetag(S.token()))); |
duke@1 | 1252 | S.nextToken(); |
duke@1 | 1253 | return t; |
duke@1 | 1254 | } |
duke@1 | 1255 | |
duke@1 | 1256 | /** ArgumentsOpt = [ Arguments ] |
duke@1 | 1257 | */ |
duke@1 | 1258 | JCExpression argumentsOpt(List<JCExpression> typeArgs, JCExpression t) { |
duke@1 | 1259 | if ((mode & EXPR) != 0 && S.token() == LPAREN || typeArgs != null) { |
duke@1 | 1260 | mode = EXPR; |
duke@1 | 1261 | return arguments(typeArgs, t); |
duke@1 | 1262 | } else { |
duke@1 | 1263 | return t; |
duke@1 | 1264 | } |
duke@1 | 1265 | } |
duke@1 | 1266 | |
duke@1 | 1267 | /** Arguments = "(" [Expression { COMMA Expression }] ")" |
duke@1 | 1268 | */ |
duke@1 | 1269 | List<JCExpression> arguments() { |
duke@1 | 1270 | ListBuffer<JCExpression> args = lb(); |
duke@1 | 1271 | if (S.token() == LPAREN) { |
duke@1 | 1272 | S.nextToken(); |
duke@1 | 1273 | if (S.token() != RPAREN) { |
jjg@111 | 1274 | args.append(parseExpression()); |
duke@1 | 1275 | while (S.token() == COMMA) { |
duke@1 | 1276 | S.nextToken(); |
jjg@111 | 1277 | args.append(parseExpression()); |
duke@1 | 1278 | } |
duke@1 | 1279 | } |
duke@1 | 1280 | accept(RPAREN); |
duke@1 | 1281 | } else { |
mcimadamore@80 | 1282 | syntaxError(S.pos(), "expected", LPAREN); |
duke@1 | 1283 | } |
duke@1 | 1284 | return args.toList(); |
duke@1 | 1285 | } |
duke@1 | 1286 | |
duke@1 | 1287 | JCMethodInvocation arguments(List<JCExpression> typeArgs, JCExpression t) { |
duke@1 | 1288 | int pos = S.pos(); |
duke@1 | 1289 | List<JCExpression> args = arguments(); |
duke@1 | 1290 | return toP(F.at(pos).Apply(typeArgs, t, args)); |
duke@1 | 1291 | } |
duke@1 | 1292 | |
duke@1 | 1293 | /** TypeArgumentsOpt = [ TypeArguments ] |
duke@1 | 1294 | */ |
duke@1 | 1295 | JCExpression typeArgumentsOpt(JCExpression t) { |
duke@1 | 1296 | if (S.token() == LT && |
duke@1 | 1297 | (mode & TYPE) != 0 && |
duke@1 | 1298 | (mode & NOPARAMS) == 0) { |
duke@1 | 1299 | mode = TYPE; |
duke@1 | 1300 | checkGenerics(); |
duke@1 | 1301 | return typeArguments(t); |
duke@1 | 1302 | } else { |
duke@1 | 1303 | return t; |
duke@1 | 1304 | } |
duke@1 | 1305 | } |
duke@1 | 1306 | List<JCExpression> typeArgumentsOpt() { |
duke@1 | 1307 | return typeArgumentsOpt(TYPE); |
duke@1 | 1308 | } |
duke@1 | 1309 | |
duke@1 | 1310 | List<JCExpression> typeArgumentsOpt(int useMode) { |
duke@1 | 1311 | if (S.token() == LT) { |
duke@1 | 1312 | checkGenerics(); |
duke@1 | 1313 | if ((mode & useMode) == 0 || |
duke@1 | 1314 | (mode & NOPARAMS) != 0) { |
duke@1 | 1315 | illegal(); |
duke@1 | 1316 | } |
duke@1 | 1317 | mode = useMode; |
duke@1 | 1318 | return typeArguments(); |
duke@1 | 1319 | } |
duke@1 | 1320 | return null; |
duke@1 | 1321 | } |
duke@1 | 1322 | |
duke@1 | 1323 | /** TypeArguments = "<" TypeArgument {"," TypeArgument} ">" |
duke@1 | 1324 | */ |
duke@1 | 1325 | List<JCExpression> typeArguments() { |
duke@1 | 1326 | ListBuffer<JCExpression> args = lb(); |
duke@1 | 1327 | if (S.token() == LT) { |
duke@1 | 1328 | S.nextToken(); |
jjg@111 | 1329 | args.append(((mode & EXPR) == 0) ? typeArgument() : parseType()); |
duke@1 | 1330 | while (S.token() == COMMA) { |
duke@1 | 1331 | S.nextToken(); |
jjg@111 | 1332 | args.append(((mode & EXPR) == 0) ? typeArgument() : parseType()); |
duke@1 | 1333 | } |
duke@1 | 1334 | switch (S.token()) { |
duke@1 | 1335 | case GTGTGTEQ: |
duke@1 | 1336 | S.token(GTGTEQ); |
duke@1 | 1337 | break; |
duke@1 | 1338 | case GTGTEQ: |
duke@1 | 1339 | S.token(GTEQ); |
duke@1 | 1340 | break; |
duke@1 | 1341 | case GTEQ: |
duke@1 | 1342 | S.token(EQ); |
duke@1 | 1343 | break; |
duke@1 | 1344 | case GTGTGT: |
duke@1 | 1345 | S.token(GTGT); |
duke@1 | 1346 | break; |
duke@1 | 1347 | case GTGT: |
duke@1 | 1348 | S.token(GT); |
duke@1 | 1349 | break; |
duke@1 | 1350 | default: |
duke@1 | 1351 | accept(GT); |
duke@1 | 1352 | break; |
duke@1 | 1353 | } |
duke@1 | 1354 | } else { |
mcimadamore@80 | 1355 | syntaxError(S.pos(), "expected", LT); |
duke@1 | 1356 | } |
duke@1 | 1357 | return args.toList(); |
duke@1 | 1358 | } |
duke@1 | 1359 | |
duke@1 | 1360 | /** TypeArgument = Type |
jjg@308 | 1361 | * | [Annotations] "?" |
jjg@308 | 1362 | * | [Annotations] "?" EXTENDS Type {"&" Type} |
jjg@308 | 1363 | * | [Annotations] "?" SUPER Type |
duke@1 | 1364 | */ |
duke@1 | 1365 | JCExpression typeArgument() { |
jjg@308 | 1366 | List<JCTypeAnnotation> annotations = typeAnnotationsOpt(); |
jjg@308 | 1367 | if (S.token() != QUES) return parseType(annotations); |
duke@1 | 1368 | int pos = S.pos(); |
duke@1 | 1369 | S.nextToken(); |
jjg@308 | 1370 | JCExpression result; |
duke@1 | 1371 | if (S.token() == EXTENDS) { |
duke@1 | 1372 | TypeBoundKind t = to(F.at(S.pos()).TypeBoundKind(BoundKind.EXTENDS)); |
duke@1 | 1373 | S.nextToken(); |
jjg@308 | 1374 | result = F.at(pos).Wildcard(t, parseType()); |
duke@1 | 1375 | } else if (S.token() == SUPER) { |
duke@1 | 1376 | TypeBoundKind t = to(F.at(S.pos()).TypeBoundKind(BoundKind.SUPER)); |
duke@1 | 1377 | S.nextToken(); |
jjg@308 | 1378 | result = F.at(pos).Wildcard(t, parseType()); |
duke@1 | 1379 | } else if (S.token() == IDENTIFIER) { |
duke@1 | 1380 | //error recovery |
duke@1 | 1381 | reportSyntaxError(S.prevEndPos(), "expected3", |
mcimadamore@80 | 1382 | GT, EXTENDS, SUPER); |
duke@1 | 1383 | TypeBoundKind t = F.at(Position.NOPOS).TypeBoundKind(BoundKind.UNBOUND); |
duke@1 | 1384 | JCExpression wc = toP(F.at(pos).Wildcard(t, null)); |
duke@1 | 1385 | JCIdent id = toP(F.at(S.pos()).Ident(ident())); |
jjg@308 | 1386 | result = F.at(pos).Erroneous(List.<JCTree>of(wc, id)); |
duke@1 | 1387 | } else { |
duke@1 | 1388 | TypeBoundKind t = F.at(Position.NOPOS).TypeBoundKind(BoundKind.UNBOUND); |
jjg@308 | 1389 | result = toP(F.at(pos).Wildcard(t, null)); |
duke@1 | 1390 | } |
jjg@308 | 1391 | if (!annotations.isEmpty()) |
jjg@308 | 1392 | result = toP(F.at(annotations.head.pos).AnnotatedType(annotations,result)); |
jjg@308 | 1393 | return result; |
duke@1 | 1394 | } |
duke@1 | 1395 | |
duke@1 | 1396 | JCTypeApply typeArguments(JCExpression t) { |
duke@1 | 1397 | int pos = S.pos(); |
duke@1 | 1398 | List<JCExpression> args = typeArguments(); |
duke@1 | 1399 | return toP(F.at(pos).TypeApply(t, args)); |
duke@1 | 1400 | } |
duke@1 | 1401 | |
jjg@308 | 1402 | /** |
jjg@308 | 1403 | * BracketsOpt = { [Annotations] "[" "]" } |
jjg@308 | 1404 | * |
jjg@308 | 1405 | * <p> |
jjg@308 | 1406 | * |
jjg@308 | 1407 | * <code>annotations</code> is the list of annotations targeting |
jjg@308 | 1408 | * the expression <code>t</code>. |
duke@1 | 1409 | */ |
jjg@308 | 1410 | private JCExpression bracketsOpt(JCExpression t, |
jjg@308 | 1411 | List<JCTypeAnnotation> annotations) { |
jjg@308 | 1412 | List<JCTypeAnnotation> nextLevelAnnotations = typeAnnotationsOpt(); |
jjg@308 | 1413 | |
duke@1 | 1414 | if (S.token() == LBRACKET) { |
duke@1 | 1415 | int pos = S.pos(); |
duke@1 | 1416 | S.nextToken(); |
jjg@308 | 1417 | |
jjg@308 | 1418 | JCExpression orig = t; |
jjg@308 | 1419 | t = bracketsOptCont(t, pos, nextLevelAnnotations); |
jjg@308 | 1420 | } else if (!nextLevelAnnotations.isEmpty()) { |
jjg@308 | 1421 | if (permitTypeAnnotationsPushBack) { |
jjg@308 | 1422 | this.typeAnnotationsPushedBack = nextLevelAnnotations; |
jjg@308 | 1423 | } else |
jjg@308 | 1424 | return illegal(nextLevelAnnotations.head.pos); |
duke@1 | 1425 | } |
jjg@308 | 1426 | |
jjg@308 | 1427 | int apos = S.pos(); |
jjg@308 | 1428 | if (!annotations.isEmpty()) |
jjg@308 | 1429 | t = F.at(apos).AnnotatedType(annotations, t); |
duke@1 | 1430 | return t; |
duke@1 | 1431 | } |
duke@1 | 1432 | |
jjg@308 | 1433 | /** BracketsOpt = {"[" TypeAnnotations "]"} |
jjg@308 | 1434 | */ |
jjg@308 | 1435 | private JCExpression bracketsOpt(JCExpression t) { |
jjg@308 | 1436 | return bracketsOpt(t, List.<JCTypeAnnotation>nil()); |
jjg@308 | 1437 | } |
jjg@308 | 1438 | |
jjg@308 | 1439 | private JCArrayTypeTree bracketsOptCont(JCExpression t, int pos, |
jjg@308 | 1440 | List<JCTypeAnnotation> annotations) { |
duke@1 | 1441 | accept(RBRACKET); |
jjg@308 | 1442 | t = bracketsOpt(t, annotations); |
duke@1 | 1443 | return toP(F.at(pos).TypeArray(t)); |
duke@1 | 1444 | } |
duke@1 | 1445 | |
duke@1 | 1446 | /** BracketsSuffixExpr = "." CLASS |
duke@1 | 1447 | * BracketsSuffixType = |
duke@1 | 1448 | */ |
duke@1 | 1449 | JCExpression bracketsSuffix(JCExpression t) { |
duke@1 | 1450 | if ((mode & EXPR) != 0 && S.token() == DOT) { |
duke@1 | 1451 | mode = EXPR; |
duke@1 | 1452 | int pos = S.pos(); |
duke@1 | 1453 | S.nextToken(); |
duke@1 | 1454 | accept(CLASS); |
duke@1 | 1455 | if (S.pos() == errorEndPos) { |
duke@1 | 1456 | // error recovery |
duke@1 | 1457 | Name name = null; |
duke@1 | 1458 | if (S.token() == IDENTIFIER) { |
duke@1 | 1459 | name = S.name(); |
duke@1 | 1460 | S.nextToken(); |
duke@1 | 1461 | } else { |
duke@1 | 1462 | name = names.error; |
duke@1 | 1463 | } |
duke@1 | 1464 | t = F.at(pos).Erroneous(List.<JCTree>of(toP(F.at(pos).Select(t, name)))); |
duke@1 | 1465 | } else { |
duke@1 | 1466 | t = toP(F.at(pos).Select(t, names._class)); |
duke@1 | 1467 | } |
duke@1 | 1468 | } else if ((mode & TYPE) != 0) { |
duke@1 | 1469 | mode = TYPE; |
duke@1 | 1470 | } else { |
duke@1 | 1471 | syntaxError(S.pos(), "dot.class.expected"); |
duke@1 | 1472 | } |
duke@1 | 1473 | return t; |
duke@1 | 1474 | } |
duke@1 | 1475 | |
jjg@308 | 1476 | /** Creator = [Annotations] Qualident [TypeArguments] ( ArrayCreatorRest | ClassCreatorRest ) |
duke@1 | 1477 | */ |
duke@1 | 1478 | JCExpression creator(int newpos, List<JCExpression> typeArgs) { |
jjg@308 | 1479 | |
jjg@308 | 1480 | List<JCTypeAnnotation> newAnnotations = typeAnnotationsOpt(); |
jjg@308 | 1481 | |
duke@1 | 1482 | switch (S.token()) { |
duke@1 | 1483 | case BYTE: case SHORT: case CHAR: case INT: case LONG: case FLOAT: |
duke@1 | 1484 | case DOUBLE: case BOOLEAN: |
jjg@308 | 1485 | if (typeArgs == null) { |
jjg@308 | 1486 | if (newAnnotations.isEmpty()) |
jjg@308 | 1487 | return arrayCreatorRest(newpos, basicType()); |
jjg@308 | 1488 | else |
jjg@308 | 1489 | return arrayCreatorRest(newpos, F.AnnotatedType(newAnnotations, basicType())); |
jjg@308 | 1490 | } |
duke@1 | 1491 | break; |
duke@1 | 1492 | default: |
duke@1 | 1493 | } |
duke@1 | 1494 | JCExpression t = qualident(); |
jjg@308 | 1495 | // handle type annotations for non primitive arrays |
jjg@308 | 1496 | if (!newAnnotations.isEmpty()) |
jjg@308 | 1497 | t = F.AnnotatedType(newAnnotations, t); |
jjg@308 | 1498 | |
duke@1 | 1499 | int oldmode = mode; |
duke@1 | 1500 | mode = TYPE; |
duke@1 | 1501 | if (S.token() == LT) { |
duke@1 | 1502 | checkGenerics(); |
duke@1 | 1503 | t = typeArguments(t); |
duke@1 | 1504 | } |
duke@1 | 1505 | while (S.token() == DOT) { |
duke@1 | 1506 | int pos = S.pos(); |
duke@1 | 1507 | S.nextToken(); |
duke@1 | 1508 | t = toP(F.at(pos).Select(t, ident())); |
duke@1 | 1509 | if (S.token() == LT) { |
duke@1 | 1510 | checkGenerics(); |
duke@1 | 1511 | t = typeArguments(t); |
duke@1 | 1512 | } |
duke@1 | 1513 | } |
duke@1 | 1514 | mode = oldmode; |
jjg@308 | 1515 | if (S.token() == LBRACKET || S.token() == MONKEYS_AT) { |
duke@1 | 1516 | JCExpression e = arrayCreatorRest(newpos, t); |
duke@1 | 1517 | if (typeArgs != null) { |
duke@1 | 1518 | int pos = newpos; |
duke@1 | 1519 | if (!typeArgs.isEmpty() && typeArgs.head.pos != Position.NOPOS) { |
duke@1 | 1520 | // note: this should always happen but we should |
duke@1 | 1521 | // not rely on this as the parser is continuously |
duke@1 | 1522 | // modified to improve error recovery. |
duke@1 | 1523 | pos = typeArgs.head.pos; |
duke@1 | 1524 | } |
duke@1 | 1525 | setErrorEndPos(S.prevEndPos()); |
duke@1 | 1526 | reportSyntaxError(pos, "cannot.create.array.with.type.arguments"); |
duke@1 | 1527 | return toP(F.at(newpos).Erroneous(typeArgs.prepend(e))); |
duke@1 | 1528 | } |
duke@1 | 1529 | return e; |
duke@1 | 1530 | } else if (S.token() == LPAREN) { |
jjg@308 | 1531 | JCNewClass newClass = classCreatorRest(newpos, null, typeArgs, t); |
jjg@308 | 1532 | if (newClass.def != null) { |
jjg@308 | 1533 | assert newClass.def.mods.annotations.isEmpty(); |
jjg@308 | 1534 | newClass.def.mods.annotations = List.convert(JCAnnotation.class, newAnnotations); |
jjg@308 | 1535 | } |
jjg@308 | 1536 | return newClass; |
duke@1 | 1537 | } else { |
duke@1 | 1538 | reportSyntaxError(S.pos(), "expected2", |
mcimadamore@80 | 1539 | LPAREN, LBRACKET); |
duke@1 | 1540 | t = toP(F.at(newpos).NewClass(null, typeArgs, t, List.<JCExpression>nil(), null)); |
duke@1 | 1541 | return toP(F.at(newpos).Erroneous(List.<JCTree>of(t))); |
duke@1 | 1542 | } |
duke@1 | 1543 | } |
duke@1 | 1544 | |
duke@1 | 1545 | /** InnerCreator = Ident [TypeArguments] ClassCreatorRest |
duke@1 | 1546 | */ |
duke@1 | 1547 | JCExpression innerCreator(int newpos, List<JCExpression> typeArgs, JCExpression encl) { |
duke@1 | 1548 | JCExpression t = toP(F.at(S.pos()).Ident(ident())); |
duke@1 | 1549 | if (S.token() == LT) { |
duke@1 | 1550 | checkGenerics(); |
duke@1 | 1551 | t = typeArguments(t); |
duke@1 | 1552 | } |
duke@1 | 1553 | return classCreatorRest(newpos, encl, typeArgs, t); |
duke@1 | 1554 | } |
duke@1 | 1555 | |
jjg@308 | 1556 | /** ArrayCreatorRest = [Annotations] "[" ( "]" BracketsOpt ArrayInitializer |
jjg@308 | 1557 | * | Expression "]" {[Annotations] "[" Expression "]"} BracketsOpt ) |
duke@1 | 1558 | */ |
duke@1 | 1559 | JCExpression arrayCreatorRest(int newpos, JCExpression elemtype) { |
jjg@308 | 1560 | |
jjg@308 | 1561 | List<JCTypeAnnotation> topAnnos = List.nil(); |
jjg@308 | 1562 | if (elemtype.getTag() == JCTree.ANNOTATED_TYPE) { |
jjg@308 | 1563 | JCAnnotatedType atype = (JCAnnotatedType) elemtype; |
jjg@308 | 1564 | topAnnos = atype.annotations; |
jjg@308 | 1565 | elemtype = atype.underlyingType; |
jjg@308 | 1566 | } |
jjg@308 | 1567 | |
jjg@308 | 1568 | List<JCTypeAnnotation> annos = typeAnnotationsOpt(); |
jjg@308 | 1569 | |
duke@1 | 1570 | accept(LBRACKET); |
jjg@308 | 1571 | |
duke@1 | 1572 | if (S.token() == RBRACKET) { |
duke@1 | 1573 | accept(RBRACKET); |
jjg@308 | 1574 | |
jjg@308 | 1575 | elemtype = bracketsOpt(elemtype, annos); |
jjg@308 | 1576 | |
duke@1 | 1577 | if (S.token() == LBRACE) { |
jjg@308 | 1578 | JCNewArray na = (JCNewArray)arrayInitializer(newpos, elemtype); |
jjg@308 | 1579 | |
jjg@308 | 1580 | na.annotations = topAnnos; |
jjg@308 | 1581 | |
jjg@308 | 1582 | return na; |
duke@1 | 1583 | } else { |
duke@1 | 1584 | return syntaxError(S.pos(), "array.dimension.missing"); |
duke@1 | 1585 | } |
duke@1 | 1586 | } else { |
duke@1 | 1587 | ListBuffer<JCExpression> dims = new ListBuffer<JCExpression>(); |
jjg@308 | 1588 | |
jjg@308 | 1589 | // maintain array dimension type annotations |
jjg@308 | 1590 | ListBuffer<List<JCTypeAnnotation>> dimAnnotations = ListBuffer.lb(); |
jjg@308 | 1591 | dimAnnotations.append(annos); |
jjg@308 | 1592 | |
jjg@111 | 1593 | dims.append(parseExpression()); |
duke@1 | 1594 | accept(RBRACKET); |
jjg@308 | 1595 | while (S.token() == LBRACKET |
jjg@308 | 1596 | || (S.token() == MONKEYS_AT)) { |
jjg@308 | 1597 | List<JCTypeAnnotation> maybeDimAnnos = typeAnnotationsOpt(); |
duke@1 | 1598 | int pos = S.pos(); |
duke@1 | 1599 | S.nextToken(); |
duke@1 | 1600 | if (S.token() == RBRACKET) { |
jjg@308 | 1601 | elemtype = bracketsOptCont(elemtype, pos, maybeDimAnnos); |
duke@1 | 1602 | } else { |
jjg@308 | 1603 | if (S.token() == RBRACKET) { // no dimension |
jjg@308 | 1604 | elemtype = bracketsOptCont(elemtype, pos, maybeDimAnnos); |
jjg@308 | 1605 | } else { |
jjg@308 | 1606 | dimAnnotations.append(maybeDimAnnos); |
jjg@308 | 1607 | dims.append(parseExpression()); |
jjg@308 | 1608 | accept(RBRACKET); |
jjg@308 | 1609 | } |
duke@1 | 1610 | } |
duke@1 | 1611 | } |
jjg@308 | 1612 | |
jjg@308 | 1613 | JCNewArray na = toP(F.at(newpos).NewArray(elemtype, dims.toList(), null)); |
jjg@308 | 1614 | na.annotations = topAnnos; |
jjg@308 | 1615 | na.dimAnnotations = dimAnnotations.toList(); |
jjg@308 | 1616 | return na; |
duke@1 | 1617 | } |
duke@1 | 1618 | } |
duke@1 | 1619 | |
duke@1 | 1620 | /** ClassCreatorRest = Arguments [ClassBody] |
duke@1 | 1621 | */ |
jjg@308 | 1622 | JCNewClass classCreatorRest(int newpos, |
duke@1 | 1623 | JCExpression encl, |
duke@1 | 1624 | List<JCExpression> typeArgs, |
duke@1 | 1625 | JCExpression t) |
duke@1 | 1626 | { |
duke@1 | 1627 | List<JCExpression> args = arguments(); |
duke@1 | 1628 | JCClassDecl body = null; |
duke@1 | 1629 | if (S.token() == LBRACE) { |
duke@1 | 1630 | int pos = S.pos(); |
duke@1 | 1631 | List<JCTree> defs = classOrInterfaceBody(names.empty, false); |
duke@1 | 1632 | JCModifiers mods = F.at(Position.NOPOS).Modifiers(0); |
duke@1 | 1633 | body = toP(F.at(pos).AnonymousClassDef(mods, defs)); |
duke@1 | 1634 | } |
duke@1 | 1635 | return toP(F.at(newpos).NewClass(encl, typeArgs, t, args, body)); |
duke@1 | 1636 | } |
duke@1 | 1637 | |
duke@1 | 1638 | /** ArrayInitializer = "{" [VariableInitializer {"," VariableInitializer}] [","] "}" |
duke@1 | 1639 | */ |
duke@1 | 1640 | JCExpression arrayInitializer(int newpos, JCExpression t) { |
duke@1 | 1641 | accept(LBRACE); |
duke@1 | 1642 | ListBuffer<JCExpression> elems = new ListBuffer<JCExpression>(); |
duke@1 | 1643 | if (S.token() == COMMA) { |
duke@1 | 1644 | S.nextToken(); |
duke@1 | 1645 | } else if (S.token() != RBRACE) { |
duke@1 | 1646 | elems.append(variableInitializer()); |
duke@1 | 1647 | while (S.token() == COMMA) { |
duke@1 | 1648 | S.nextToken(); |
duke@1 | 1649 | if (S.token() == RBRACE) break; |
duke@1 | 1650 | elems.append(variableInitializer()); |
duke@1 | 1651 | } |
duke@1 | 1652 | } |
duke@1 | 1653 | accept(RBRACE); |
duke@1 | 1654 | return toP(F.at(newpos).NewArray(t, List.<JCExpression>nil(), elems.toList())); |
duke@1 | 1655 | } |
duke@1 | 1656 | |
duke@1 | 1657 | /** VariableInitializer = ArrayInitializer | Expression |
duke@1 | 1658 | */ |
duke@1 | 1659 | public JCExpression variableInitializer() { |
jjg@111 | 1660 | return S.token() == LBRACE ? arrayInitializer(S.pos(), null) : parseExpression(); |
duke@1 | 1661 | } |
duke@1 | 1662 | |
duke@1 | 1663 | /** ParExpression = "(" Expression ")" |
duke@1 | 1664 | */ |
duke@1 | 1665 | JCExpression parExpression() { |
duke@1 | 1666 | accept(LPAREN); |
jjg@111 | 1667 | JCExpression t = parseExpression(); |
duke@1 | 1668 | accept(RPAREN); |
duke@1 | 1669 | return t; |
duke@1 | 1670 | } |
duke@1 | 1671 | |
duke@1 | 1672 | /** Block = "{" BlockStatements "}" |
duke@1 | 1673 | */ |
duke@1 | 1674 | JCBlock block(int pos, long flags) { |
duke@1 | 1675 | accept(LBRACE); |
duke@1 | 1676 | List<JCStatement> stats = blockStatements(); |
duke@1 | 1677 | JCBlock t = F.at(pos).Block(flags, stats); |
duke@1 | 1678 | while (S.token() == CASE || S.token() == DEFAULT) { |
mcimadamore@80 | 1679 | syntaxError("orphaned", S.token()); |
duke@1 | 1680 | switchBlockStatementGroups(); |
duke@1 | 1681 | } |
duke@1 | 1682 | // the Block node has a field "endpos" for first char of last token, which is |
duke@1 | 1683 | // usually but not necessarily the last char of the last token. |
duke@1 | 1684 | t.endpos = S.pos(); |
duke@1 | 1685 | accept(RBRACE); |
duke@1 | 1686 | return toP(t); |
duke@1 | 1687 | } |
duke@1 | 1688 | |
duke@1 | 1689 | public JCBlock block() { |
duke@1 | 1690 | return block(S.pos(), 0); |
duke@1 | 1691 | } |
duke@1 | 1692 | |
duke@1 | 1693 | /** BlockStatements = { BlockStatement } |
duke@1 | 1694 | * BlockStatement = LocalVariableDeclarationStatement |
duke@1 | 1695 | * | ClassOrInterfaceOrEnumDeclaration |
duke@1 | 1696 | * | [Ident ":"] Statement |
duke@1 | 1697 | * LocalVariableDeclarationStatement |
duke@1 | 1698 | * = { FINAL | '@' Annotation } Type VariableDeclarators ";" |
duke@1 | 1699 | */ |
duke@1 | 1700 | @SuppressWarnings("fallthrough") |
duke@1 | 1701 | List<JCStatement> blockStatements() { |
duke@1 | 1702 | //todo: skip to anchor on error(?) |
duke@1 | 1703 | int lastErrPos = -1; |
duke@1 | 1704 | ListBuffer<JCStatement> stats = new ListBuffer<JCStatement>(); |
duke@1 | 1705 | while (true) { |
duke@1 | 1706 | int pos = S.pos(); |
duke@1 | 1707 | switch (S.token()) { |
duke@1 | 1708 | case RBRACE: case CASE: case DEFAULT: case EOF: |
duke@1 | 1709 | return stats.toList(); |
duke@1 | 1710 | case LBRACE: case IF: case FOR: case WHILE: case DO: case TRY: |
duke@1 | 1711 | case SWITCH: case SYNCHRONIZED: case RETURN: case THROW: case BREAK: |
duke@1 | 1712 | case CONTINUE: case SEMI: case ELSE: case FINALLY: case CATCH: |
jjg@111 | 1713 | stats.append(parseStatement()); |
duke@1 | 1714 | break; |
duke@1 | 1715 | case MONKEYS_AT: |
duke@1 | 1716 | case FINAL: { |
duke@1 | 1717 | String dc = S.docComment(); |
duke@1 | 1718 | JCModifiers mods = modifiersOpt(); |
duke@1 | 1719 | if (S.token() == INTERFACE || |
duke@1 | 1720 | S.token() == CLASS || |
duke@1 | 1721 | allowEnums && S.token() == ENUM) { |
duke@1 | 1722 | stats.append(classOrInterfaceOrEnumDeclaration(mods, dc)); |
duke@1 | 1723 | } else { |
jjg@111 | 1724 | JCExpression t = parseType(); |
duke@1 | 1725 | stats.appendList(variableDeclarators(mods, t, |
duke@1 | 1726 | new ListBuffer<JCStatement>())); |
duke@1 | 1727 | // A "LocalVariableDeclarationStatement" subsumes the terminating semicolon |
duke@1 | 1728 | storeEnd(stats.elems.last(), S.endPos()); |
duke@1 | 1729 | accept(SEMI); |
duke@1 | 1730 | } |
duke@1 | 1731 | break; |
duke@1 | 1732 | } |
duke@1 | 1733 | case ABSTRACT: case STRICTFP: { |
duke@1 | 1734 | String dc = S.docComment(); |
duke@1 | 1735 | JCModifiers mods = modifiersOpt(); |
duke@1 | 1736 | stats.append(classOrInterfaceOrEnumDeclaration(mods, dc)); |
duke@1 | 1737 | break; |
duke@1 | 1738 | } |
duke@1 | 1739 | case INTERFACE: |
duke@1 | 1740 | case CLASS: |
duke@1 | 1741 | stats.append(classOrInterfaceOrEnumDeclaration(modifiersOpt(), |
duke@1 | 1742 | S.docComment())); |
duke@1 | 1743 | break; |
duke@1 | 1744 | case ENUM: |
duke@1 | 1745 | case ASSERT: |
duke@1 | 1746 | if (allowEnums && S.token() == ENUM) { |
duke@1 | 1747 | log.error(S.pos(), "local.enum"); |
duke@1 | 1748 | stats. |
duke@1 | 1749 | append(classOrInterfaceOrEnumDeclaration(modifiersOpt(), |
duke@1 | 1750 | S.docComment())); |
duke@1 | 1751 | break; |
duke@1 | 1752 | } else if (allowAsserts && S.token() == ASSERT) { |
jjg@111 | 1753 | stats.append(parseStatement()); |
duke@1 | 1754 | break; |
duke@1 | 1755 | } |
duke@1 | 1756 | /* fall through to default */ |
duke@1 | 1757 | default: |
duke@1 | 1758 | Name name = S.name(); |
duke@1 | 1759 | JCExpression t = term(EXPR | TYPE); |
duke@1 | 1760 | if (S.token() == COLON && t.getTag() == JCTree.IDENT) { |
duke@1 | 1761 | S.nextToken(); |
jjg@111 | 1762 | JCStatement stat = parseStatement(); |
duke@1 | 1763 | stats.append(F.at(pos).Labelled(name, stat)); |
duke@1 | 1764 | } else if ((lastmode & TYPE) != 0 && |
duke@1 | 1765 | (S.token() == IDENTIFIER || |
duke@1 | 1766 | S.token() == ASSERT || |
duke@1 | 1767 | S.token() == ENUM)) { |
duke@1 | 1768 | pos = S.pos(); |
duke@1 | 1769 | JCModifiers mods = F.at(Position.NOPOS).Modifiers(0); |
duke@1 | 1770 | F.at(pos); |
duke@1 | 1771 | stats.appendList(variableDeclarators(mods, t, |
duke@1 | 1772 | new ListBuffer<JCStatement>())); |
duke@1 | 1773 | // A "LocalVariableDeclarationStatement" subsumes the terminating semicolon |
duke@1 | 1774 | storeEnd(stats.elems.last(), S.endPos()); |
duke@1 | 1775 | accept(SEMI); |
duke@1 | 1776 | } else { |
duke@1 | 1777 | // This Exec is an "ExpressionStatement"; it subsumes the terminating semicolon |
duke@1 | 1778 | stats.append(to(F.at(pos).Exec(checkExprStat(t)))); |
duke@1 | 1779 | accept(SEMI); |
duke@1 | 1780 | } |
duke@1 | 1781 | } |
duke@1 | 1782 | |
duke@1 | 1783 | // error recovery |
duke@1 | 1784 | if (S.pos() == lastErrPos) |
duke@1 | 1785 | return stats.toList(); |
duke@1 | 1786 | if (S.pos() <= errorEndPos) { |
duke@1 | 1787 | skip(false, true, true, true); |
duke@1 | 1788 | lastErrPos = S.pos(); |
duke@1 | 1789 | } |
duke@1 | 1790 | |
duke@1 | 1791 | // ensure no dangling /** @deprecated */ active |
duke@1 | 1792 | S.resetDeprecatedFlag(); |
duke@1 | 1793 | } |
duke@1 | 1794 | } |
duke@1 | 1795 | |
duke@1 | 1796 | /** Statement = |
duke@1 | 1797 | * Block |
duke@1 | 1798 | * | IF ParExpression Statement [ELSE Statement] |
duke@1 | 1799 | * | FOR "(" ForInitOpt ";" [Expression] ";" ForUpdateOpt ")" Statement |
duke@1 | 1800 | * | FOR "(" FormalParameter : Expression ")" Statement |
duke@1 | 1801 | * | WHILE ParExpression Statement |
duke@1 | 1802 | * | DO Statement WHILE ParExpression ";" |
duke@1 | 1803 | * | TRY Block ( Catches | [Catches] FinallyPart ) |
duke@1 | 1804 | * | SWITCH ParExpression "{" SwitchBlockStatementGroups "}" |
duke@1 | 1805 | * | SYNCHRONIZED ParExpression Block |
duke@1 | 1806 | * | RETURN [Expression] ";" |
duke@1 | 1807 | * | THROW Expression ";" |
duke@1 | 1808 | * | BREAK [Ident] ";" |
duke@1 | 1809 | * | CONTINUE [Ident] ";" |
duke@1 | 1810 | * | ASSERT Expression [ ":" Expression ] ";" |
duke@1 | 1811 | * | ";" |
duke@1 | 1812 | * | ExpressionStatement |
duke@1 | 1813 | * | Ident ":" Statement |
duke@1 | 1814 | */ |
duke@1 | 1815 | @SuppressWarnings("fallthrough") |
jjg@111 | 1816 | public JCStatement parseStatement() { |
duke@1 | 1817 | int pos = S.pos(); |
duke@1 | 1818 | switch (S.token()) { |
duke@1 | 1819 | case LBRACE: |
duke@1 | 1820 | return block(); |
duke@1 | 1821 | case IF: { |
duke@1 | 1822 | S.nextToken(); |
duke@1 | 1823 | JCExpression cond = parExpression(); |
jjg@111 | 1824 | JCStatement thenpart = parseStatement(); |
duke@1 | 1825 | JCStatement elsepart = null; |
duke@1 | 1826 | if (S.token() == ELSE) { |
duke@1 | 1827 | S.nextToken(); |
jjg@111 | 1828 | elsepart = parseStatement(); |
duke@1 | 1829 | } |
duke@1 | 1830 | return F.at(pos).If(cond, thenpart, elsepart); |
duke@1 | 1831 | } |
duke@1 | 1832 | case FOR: { |
duke@1 | 1833 | S.nextToken(); |
duke@1 | 1834 | accept(LPAREN); |
duke@1 | 1835 | List<JCStatement> inits = S.token() == SEMI ? List.<JCStatement>nil() : forInit(); |
duke@1 | 1836 | if (inits.length() == 1 && |
duke@1 | 1837 | inits.head.getTag() == JCTree.VARDEF && |
duke@1 | 1838 | ((JCVariableDecl) inits.head).init == null && |
duke@1 | 1839 | S.token() == COLON) { |
duke@1 | 1840 | checkForeach(); |
duke@1 | 1841 | JCVariableDecl var = (JCVariableDecl)inits.head; |
duke@1 | 1842 | accept(COLON); |
jjg@111 | 1843 | JCExpression expr = parseExpression(); |
duke@1 | 1844 | accept(RPAREN); |
jjg@111 | 1845 | JCStatement body = parseStatement(); |
duke@1 | 1846 | return F.at(pos).ForeachLoop(var, expr, body); |
duke@1 | 1847 | } else { |
duke@1 | 1848 | accept(SEMI); |
jjg@111 | 1849 | JCExpression cond = S.token() == SEMI ? null : parseExpression(); |
duke@1 | 1850 | accept(SEMI); |
duke@1 | 1851 | List<JCExpressionStatement> steps = S.token() == RPAREN ? List.<JCExpressionStatement>nil() : forUpdate(); |
duke@1 | 1852 | accept(RPAREN); |
jjg@111 | 1853 | JCStatement body = parseStatement(); |
duke@1 | 1854 | return F.at(pos).ForLoop(inits, cond, steps, body); |
duke@1 | 1855 | } |
duke@1 | 1856 | } |
duke@1 | 1857 | case WHILE: { |
duke@1 | 1858 | S.nextToken(); |
duke@1 | 1859 | JCExpression cond = parExpression(); |
jjg@111 | 1860 | JCStatement body = parseStatement(); |
duke@1 | 1861 | return F.at(pos).WhileLoop(cond, body); |
duke@1 | 1862 | } |
duke@1 | 1863 | case DO: { |
duke@1 | 1864 | S.nextToken(); |
jjg@111 | 1865 | JCStatement body = parseStatement(); |
duke@1 | 1866 | accept(WHILE); |
duke@1 | 1867 | JCExpression cond = parExpression(); |
duke@1 | 1868 | JCDoWhileLoop t = to(F.at(pos).DoLoop(body, cond)); |
duke@1 | 1869 | accept(SEMI); |
duke@1 | 1870 | return t; |
duke@1 | 1871 | } |
duke@1 | 1872 | case TRY: { |
duke@1 | 1873 | S.nextToken(); |
duke@1 | 1874 | JCBlock body = block(); |
duke@1 | 1875 | ListBuffer<JCCatch> catchers = new ListBuffer<JCCatch>(); |
duke@1 | 1876 | JCBlock finalizer = null; |
duke@1 | 1877 | if (S.token() == CATCH || S.token() == FINALLY) { |
duke@1 | 1878 | while (S.token() == CATCH) catchers.append(catchClause()); |
duke@1 | 1879 | if (S.token() == FINALLY) { |
duke@1 | 1880 | S.nextToken(); |
duke@1 | 1881 | finalizer = block(); |
duke@1 | 1882 | } |
duke@1 | 1883 | } else { |
duke@1 | 1884 | log.error(pos, "try.without.catch.or.finally"); |
duke@1 | 1885 | } |
duke@1 | 1886 | return F.at(pos).Try(body, catchers.toList(), finalizer); |
duke@1 | 1887 | } |
duke@1 | 1888 | case SWITCH: { |
duke@1 | 1889 | S.nextToken(); |
duke@1 | 1890 | JCExpression selector = parExpression(); |
duke@1 | 1891 | accept(LBRACE); |
duke@1 | 1892 | List<JCCase> cases = switchBlockStatementGroups(); |
duke@1 | 1893 | JCSwitch t = to(F.at(pos).Switch(selector, cases)); |
duke@1 | 1894 | accept(RBRACE); |
duke@1 | 1895 | return t; |
duke@1 | 1896 | } |
duke@1 | 1897 | case SYNCHRONIZED: { |
duke@1 | 1898 | S.nextToken(); |
duke@1 | 1899 | JCExpression lock = parExpression(); |
duke@1 | 1900 | JCBlock body = block(); |
duke@1 | 1901 | return F.at(pos).Synchronized(lock, body); |
duke@1 | 1902 | } |
duke@1 | 1903 | case RETURN: { |
duke@1 | 1904 | S.nextToken(); |
jjg@111 | 1905 | JCExpression result = S.token() == SEMI ? null : parseExpression(); |
duke@1 | 1906 | JCReturn t = to(F.at(pos).Return(result)); |
duke@1 | 1907 | accept(SEMI); |
duke@1 | 1908 | return t; |
duke@1 | 1909 | } |
duke@1 | 1910 | case THROW: { |
duke@1 | 1911 | S.nextToken(); |
jjg@111 | 1912 | JCExpression exc = parseExpression(); |
duke@1 | 1913 | JCThrow t = to(F.at(pos).Throw(exc)); |
duke@1 | 1914 | accept(SEMI); |
duke@1 | 1915 | return t; |
duke@1 | 1916 | } |
duke@1 | 1917 | case BREAK: { |
duke@1 | 1918 | S.nextToken(); |
duke@1 | 1919 | Name label = (S.token() == IDENTIFIER || S.token() == ASSERT || S.token() == ENUM) ? ident() : null; |
duke@1 | 1920 | JCBreak t = to(F.at(pos).Break(label)); |
duke@1 | 1921 | accept(SEMI); |
duke@1 | 1922 | return t; |
duke@1 | 1923 | } |
duke@1 | 1924 | case CONTINUE: { |
duke@1 | 1925 | S.nextToken(); |
duke@1 | 1926 | Name label = (S.token() == IDENTIFIER || S.token() == ASSERT || S.token() == ENUM) ? ident() : null; |
duke@1 | 1927 | JCContinue t = to(F.at(pos).Continue(label)); |
duke@1 | 1928 | accept(SEMI); |
duke@1 | 1929 | return t; |
duke@1 | 1930 | } |
duke@1 | 1931 | case SEMI: |
duke@1 | 1932 | S.nextToken(); |
duke@1 | 1933 | return toP(F.at(pos).Skip()); |
duke@1 | 1934 | case ELSE: |
duke@1 | 1935 | return toP(F.Exec(syntaxError("else.without.if"))); |
duke@1 | 1936 | case FINALLY: |
duke@1 | 1937 | return toP(F.Exec(syntaxError("finally.without.try"))); |
duke@1 | 1938 | case CATCH: |
duke@1 | 1939 | return toP(F.Exec(syntaxError("catch.without.try"))); |
duke@1 | 1940 | case ASSERT: { |
duke@1 | 1941 | if (allowAsserts && S.token() == ASSERT) { |
duke@1 | 1942 | S.nextToken(); |
jjg@111 | 1943 | JCExpression assertion = parseExpression(); |
duke@1 | 1944 | JCExpression message = null; |
duke@1 | 1945 | if (S.token() == COLON) { |
duke@1 | 1946 | S.nextToken(); |
jjg@111 | 1947 | message = parseExpression(); |
duke@1 | 1948 | } |
duke@1 | 1949 | JCAssert t = to(F.at(pos).Assert(assertion, message)); |
duke@1 | 1950 | accept(SEMI); |
duke@1 | 1951 | return t; |
duke@1 | 1952 | } |
duke@1 | 1953 | /* else fall through to default case */ |
duke@1 | 1954 | } |
duke@1 | 1955 | case ENUM: |
duke@1 | 1956 | default: |
duke@1 | 1957 | Name name = S.name(); |
jjg@111 | 1958 | JCExpression expr = parseExpression(); |
duke@1 | 1959 | if (S.token() == COLON && expr.getTag() == JCTree.IDENT) { |
duke@1 | 1960 | S.nextToken(); |
jjg@111 | 1961 | JCStatement stat = parseStatement(); |
duke@1 | 1962 | return F.at(pos).Labelled(name, stat); |
duke@1 | 1963 | } else { |
duke@1 | 1964 | // This Exec is an "ExpressionStatement"; it subsumes the terminating semicolon |
duke@1 | 1965 | JCExpressionStatement stat = to(F.at(pos).Exec(checkExprStat(expr))); |
duke@1 | 1966 | accept(SEMI); |
duke@1 | 1967 | return stat; |
duke@1 | 1968 | } |
duke@1 | 1969 | } |
duke@1 | 1970 | } |
duke@1 | 1971 | |
duke@1 | 1972 | /** CatchClause = CATCH "(" FormalParameter ")" Block |
duke@1 | 1973 | */ |
duke@1 | 1974 | JCCatch catchClause() { |
duke@1 | 1975 | int pos = S.pos(); |
duke@1 | 1976 | accept(CATCH); |
duke@1 | 1977 | accept(LPAREN); |
duke@1 | 1978 | JCVariableDecl formal = |
duke@1 | 1979 | variableDeclaratorId(optFinal(Flags.PARAMETER), |
duke@1 | 1980 | qualident()); |
duke@1 | 1981 | accept(RPAREN); |
duke@1 | 1982 | JCBlock body = block(); |
duke@1 | 1983 | return F.at(pos).Catch(formal, body); |
duke@1 | 1984 | } |
duke@1 | 1985 | |
duke@1 | 1986 | /** SwitchBlockStatementGroups = { SwitchBlockStatementGroup } |
duke@1 | 1987 | * SwitchBlockStatementGroup = SwitchLabel BlockStatements |
duke@1 | 1988 | * SwitchLabel = CASE ConstantExpression ":" | DEFAULT ":" |
duke@1 | 1989 | */ |
duke@1 | 1990 | List<JCCase> switchBlockStatementGroups() { |
duke@1 | 1991 | ListBuffer<JCCase> cases = new ListBuffer<JCCase>(); |
duke@1 | 1992 | while (true) { |
duke@1 | 1993 | int pos = S.pos(); |
duke@1 | 1994 | switch (S.token()) { |
duke@1 | 1995 | case CASE: { |
duke@1 | 1996 | S.nextToken(); |
jjg@111 | 1997 | JCExpression pat = parseExpression(); |
duke@1 | 1998 | accept(COLON); |
duke@1 | 1999 | List<JCStatement> stats = blockStatements(); |
duke@1 | 2000 | JCCase c = F.at(pos).Case(pat, stats); |
duke@1 | 2001 | if (stats.isEmpty()) |
duke@1 | 2002 | storeEnd(c, S.prevEndPos()); |
duke@1 | 2003 | cases.append(c); |
duke@1 | 2004 | break; |
duke@1 | 2005 | } |
duke@1 | 2006 | case DEFAULT: { |
duke@1 | 2007 | S.nextToken(); |
duke@1 | 2008 | accept(COLON); |
duke@1 | 2009 | List<JCStatement> stats = blockStatements(); |
duke@1 | 2010 | JCCase c = F.at(pos).Case(null, stats); |
duke@1 | 2011 | if (stats.isEmpty()) |
duke@1 | 2012 | storeEnd(c, S.prevEndPos()); |
duke@1 | 2013 | cases.append(c); |
duke@1 | 2014 | break; |
duke@1 | 2015 | } |
duke@1 | 2016 | case RBRACE: case EOF: |
duke@1 | 2017 | return cases.toList(); |
duke@1 | 2018 | default: |
duke@1 | 2019 | S.nextToken(); // to ensure progress |
duke@1 | 2020 | syntaxError(pos, "expected3", |
mcimadamore@80 | 2021 | CASE, DEFAULT, RBRACE); |
duke@1 | 2022 | } |
duke@1 | 2023 | } |
duke@1 | 2024 | } |
duke@1 | 2025 | |
duke@1 | 2026 | /** MoreStatementExpressions = { COMMA StatementExpression } |
duke@1 | 2027 | */ |
duke@1 | 2028 | <T extends ListBuffer<? super JCExpressionStatement>> T moreStatementExpressions(int pos, |
duke@1 | 2029 | JCExpression first, |
duke@1 | 2030 | T stats) { |
duke@1 | 2031 | // This Exec is a "StatementExpression"; it subsumes no terminating token |
duke@1 | 2032 | stats.append(toP(F.at(pos).Exec(checkExprStat(first)))); |
duke@1 | 2033 | while (S.token() == COMMA) { |
duke@1 | 2034 | S.nextToken(); |
duke@1 | 2035 | pos = S.pos(); |
jjg@111 | 2036 | JCExpression t = parseExpression(); |
duke@1 | 2037 | // This Exec is a "StatementExpression"; it subsumes no terminating token |
duke@1 | 2038 | stats.append(toP(F.at(pos).Exec(checkExprStat(t)))); |
duke@1 | 2039 | } |
duke@1 | 2040 | return stats; |
duke@1 | 2041 | } |
duke@1 | 2042 | |
duke@1 | 2043 | /** ForInit = StatementExpression MoreStatementExpressions |
duke@1 | 2044 | * | { FINAL | '@' Annotation } Type VariableDeclarators |
duke@1 | 2045 | */ |
duke@1 | 2046 | List<JCStatement> forInit() { |
duke@1 | 2047 | ListBuffer<JCStatement> stats = lb(); |
duke@1 | 2048 | int pos = S.pos(); |
duke@1 | 2049 | if (S.token() == FINAL || S.token() == MONKEYS_AT) { |
jjg@111 | 2050 | return variableDeclarators(optFinal(0), parseType(), stats).toList(); |
duke@1 | 2051 | } else { |
duke@1 | 2052 | JCExpression t = term(EXPR | TYPE); |
duke@1 | 2053 | if ((lastmode & TYPE) != 0 && |
duke@1 | 2054 | (S.token() == IDENTIFIER || S.token() == ASSERT || S.token() == ENUM)) |
duke@1 | 2055 | return variableDeclarators(modifiersOpt(), t, stats).toList(); |
duke@1 | 2056 | else |
duke@1 | 2057 | return moreStatementExpressions(pos, t, stats).toList(); |
duke@1 | 2058 | } |
duke@1 | 2059 | } |
duke@1 | 2060 | |
duke@1 | 2061 | /** ForUpdate = StatementExpression MoreStatementExpressions |
duke@1 | 2062 | */ |
duke@1 | 2063 | List<JCExpressionStatement> forUpdate() { |
duke@1 | 2064 | return moreStatementExpressions(S.pos(), |
jjg@111 | 2065 | parseExpression(), |
duke@1 | 2066 | new ListBuffer<JCExpressionStatement>()).toList(); |
duke@1 | 2067 | } |
duke@1 | 2068 | |
jjg@308 | 2069 | enum AnnotationKind { DEFAULT_ANNO, TYPE_ANNO }; |
jjg@308 | 2070 | |
duke@1 | 2071 | /** AnnotationsOpt = { '@' Annotation } |
duke@1 | 2072 | */ |
jjg@308 | 2073 | List<JCAnnotation> annotationsOpt(AnnotationKind kind) { |
duke@1 | 2074 | if (S.token() != MONKEYS_AT) return List.nil(); // optimization |
duke@1 | 2075 | ListBuffer<JCAnnotation> buf = new ListBuffer<JCAnnotation>(); |
jjg@308 | 2076 | int prevmode = mode; |
duke@1 | 2077 | while (S.token() == MONKEYS_AT) { |
duke@1 | 2078 | int pos = S.pos(); |
duke@1 | 2079 | S.nextToken(); |
jjg@308 | 2080 | buf.append(annotation(pos, kind)); |
duke@1 | 2081 | } |
jjg@308 | 2082 | lastmode = mode; |
jjg@308 | 2083 | mode = prevmode; |
jjg@308 | 2084 | List<JCAnnotation> annotations = buf.toList(); |
jjg@308 | 2085 | |
jjg@308 | 2086 | if (debugJSR308 && kind == AnnotationKind.TYPE_ANNO) |
jjg@308 | 2087 | System.out.println("TA: parsing " + annotations |
jjg@308 | 2088 | + " in " + log.currentSourceFile()); |
jjg@308 | 2089 | return annotations; |
jjg@308 | 2090 | } |
jjg@308 | 2091 | |
jjg@308 | 2092 | List<JCTypeAnnotation> typeAnnotationsOpt() { |
jjg@308 | 2093 | List<JCAnnotation> annotations = annotationsOpt(AnnotationKind.TYPE_ANNO); |
jjg@308 | 2094 | return List.convert(JCTypeAnnotation.class, annotations); |
duke@1 | 2095 | } |
duke@1 | 2096 | |
duke@1 | 2097 | /** ModifiersOpt = { Modifier } |
duke@1 | 2098 | * Modifier = PUBLIC | PROTECTED | PRIVATE | STATIC | ABSTRACT | FINAL |
duke@1 | 2099 | * | NATIVE | SYNCHRONIZED | TRANSIENT | VOLATILE | "@" |
duke@1 | 2100 | * | "@" Annotation |
duke@1 | 2101 | */ |
duke@1 | 2102 | JCModifiers modifiersOpt() { |
duke@1 | 2103 | return modifiersOpt(null); |
duke@1 | 2104 | } |
duke@1 | 2105 | JCModifiers modifiersOpt(JCModifiers partial) { |
duke@1 | 2106 | long flags = (partial == null) ? 0 : partial.flags; |
duke@1 | 2107 | if (S.deprecatedFlag()) { |
duke@1 | 2108 | flags |= Flags.DEPRECATED; |
duke@1 | 2109 | S.resetDeprecatedFlag(); |
duke@1 | 2110 | } |
duke@1 | 2111 | ListBuffer<JCAnnotation> annotations = new ListBuffer<JCAnnotation>(); |
duke@1 | 2112 | if (partial != null) annotations.appendList(partial.annotations); |
duke@1 | 2113 | int pos = S.pos(); |
duke@1 | 2114 | int lastPos = Position.NOPOS; |
duke@1 | 2115 | loop: |
duke@1 | 2116 | while (true) { |
duke@1 | 2117 | long flag; |
duke@1 | 2118 | switch (S.token()) { |
duke@1 | 2119 | case PRIVATE : flag = Flags.PRIVATE; break; |
duke@1 | 2120 | case PROTECTED : flag = Flags.PROTECTED; break; |
duke@1 | 2121 | case PUBLIC : flag = Flags.PUBLIC; break; |
duke@1 | 2122 | case STATIC : flag = Flags.STATIC; break; |
duke@1 | 2123 | case TRANSIENT : flag = Flags.TRANSIENT; break; |
duke@1 | 2124 | case FINAL : flag = Flags.FINAL; break; |
duke@1 | 2125 | case ABSTRACT : flag = Flags.ABSTRACT; break; |
duke@1 | 2126 | case NATIVE : flag = Flags.NATIVE; break; |
duke@1 | 2127 | case VOLATILE : flag = Flags.VOLATILE; break; |
duke@1 | 2128 | case SYNCHRONIZED: flag = Flags.SYNCHRONIZED; break; |
duke@1 | 2129 | case STRICTFP : flag = Flags.STRICTFP; break; |
duke@1 | 2130 | case MONKEYS_AT : flag = Flags.ANNOTATION; break; |
duke@1 | 2131 | default: break loop; |
duke@1 | 2132 | } |
duke@1 | 2133 | if ((flags & flag) != 0) log.error(S.pos(), "repeated.modifier"); |
duke@1 | 2134 | lastPos = S.pos(); |
duke@1 | 2135 | S.nextToken(); |
duke@1 | 2136 | if (flag == Flags.ANNOTATION) { |
duke@1 | 2137 | checkAnnotations(); |
duke@1 | 2138 | if (S.token() != INTERFACE) { |
jjg@308 | 2139 | JCAnnotation ann = annotation(lastPos, AnnotationKind.DEFAULT_ANNO); |
duke@1 | 2140 | // if first modifier is an annotation, set pos to annotation's. |
duke@1 | 2141 | if (flags == 0 && annotations.isEmpty()) |
duke@1 | 2142 | pos = ann.pos; |
duke@1 | 2143 | annotations.append(ann); |
duke@1 | 2144 | lastPos = ann.pos; |
duke@1 | 2145 | flag = 0; |
duke@1 | 2146 | } |
duke@1 | 2147 | } |
duke@1 | 2148 | flags |= flag; |
duke@1 | 2149 | } |
duke@1 | 2150 | switch (S.token()) { |
duke@1 | 2151 | case ENUM: flags |= Flags.ENUM; break; |
duke@1 | 2152 | case INTERFACE: flags |= Flags.INTERFACE; break; |
duke@1 | 2153 | default: break; |
duke@1 | 2154 | } |
duke@1 | 2155 | |
duke@1 | 2156 | /* A modifiers tree with no modifier tokens or annotations |
duke@1 | 2157 | * has no text position. */ |
duke@1 | 2158 | if (flags == 0 && annotations.isEmpty()) |
duke@1 | 2159 | pos = Position.NOPOS; |
duke@1 | 2160 | |
duke@1 | 2161 | JCModifiers mods = F.at(pos).Modifiers(flags, annotations.toList()); |
duke@1 | 2162 | if (pos != Position.NOPOS) |
duke@1 | 2163 | storeEnd(mods, S.prevEndPos()); |
duke@1 | 2164 | return mods; |
duke@1 | 2165 | } |
duke@1 | 2166 | |
duke@1 | 2167 | /** Annotation = "@" Qualident [ "(" AnnotationFieldValues ")" ] |
duke@1 | 2168 | * @param pos position of "@" token |
duke@1 | 2169 | */ |
jjg@308 | 2170 | JCAnnotation annotation(int pos, AnnotationKind kind) { |
duke@1 | 2171 | // accept(AT); // AT consumed by caller |
duke@1 | 2172 | checkAnnotations(); |
jjg@308 | 2173 | if (kind == AnnotationKind.TYPE_ANNO) |
jjg@308 | 2174 | checkTypeAnnotations(); |
duke@1 | 2175 | JCTree ident = qualident(); |
duke@1 | 2176 | List<JCExpression> fieldValues = annotationFieldValuesOpt(); |
jjg@308 | 2177 | JCAnnotation ann; |
jjg@308 | 2178 | if (kind == AnnotationKind.DEFAULT_ANNO) |
jjg@308 | 2179 | ann = F.at(pos).Annotation(ident, fieldValues); |
jjg@308 | 2180 | else |
jjg@308 | 2181 | ann = F.at(pos).TypeAnnotation(ident, fieldValues); |
duke@1 | 2182 | storeEnd(ann, S.prevEndPos()); |
duke@1 | 2183 | return ann; |
duke@1 | 2184 | } |
duke@1 | 2185 | |
duke@1 | 2186 | List<JCExpression> annotationFieldValuesOpt() { |
duke@1 | 2187 | return (S.token() == LPAREN) ? annotationFieldValues() : List.<JCExpression>nil(); |
duke@1 | 2188 | } |
duke@1 | 2189 | |
duke@1 | 2190 | /** AnnotationFieldValues = "(" [ AnnotationFieldValue { "," AnnotationFieldValue } ] ")" */ |
duke@1 | 2191 | List<JCExpression> annotationFieldValues() { |
duke@1 | 2192 | accept(LPAREN); |
duke@1 | 2193 | ListBuffer<JCExpression> buf = new ListBuffer<JCExpression>(); |
duke@1 | 2194 | if (S.token() != RPAREN) { |
duke@1 | 2195 | buf.append(annotationFieldValue()); |
duke@1 | 2196 | while (S.token() == COMMA) { |
duke@1 | 2197 | S.nextToken(); |
duke@1 | 2198 | buf.append(annotationFieldValue()); |
duke@1 | 2199 | } |
duke@1 | 2200 | } |
duke@1 | 2201 | accept(RPAREN); |
duke@1 | 2202 | return buf.toList(); |
duke@1 | 2203 | } |
duke@1 | 2204 | |
duke@1 | 2205 | /** AnnotationFieldValue = AnnotationValue |
duke@1 | 2206 | * | Identifier "=" AnnotationValue |
duke@1 | 2207 | */ |
duke@1 | 2208 | JCExpression annotationFieldValue() { |
duke@1 | 2209 | if (S.token() == IDENTIFIER) { |
duke@1 | 2210 | mode = EXPR; |
duke@1 | 2211 | JCExpression t1 = term1(); |
duke@1 | 2212 | if (t1.getTag() == JCTree.IDENT && S.token() == EQ) { |
duke@1 | 2213 | int pos = S.pos(); |
duke@1 | 2214 | accept(EQ); |
duke@1 | 2215 | return toP(F.at(pos).Assign(t1, annotationValue())); |
duke@1 | 2216 | } else { |
duke@1 | 2217 | return t1; |
duke@1 | 2218 | } |
duke@1 | 2219 | } |
duke@1 | 2220 | return annotationValue(); |
duke@1 | 2221 | } |
duke@1 | 2222 | |
duke@1 | 2223 | /* AnnotationValue = ConditionalExpression |
duke@1 | 2224 | * | Annotation |
duke@1 | 2225 | * | "{" [ AnnotationValue { "," AnnotationValue } ] "}" |
duke@1 | 2226 | */ |
duke@1 | 2227 | JCExpression annotationValue() { |
duke@1 | 2228 | int pos; |
duke@1 | 2229 | switch (S.token()) { |
duke@1 | 2230 | case MONKEYS_AT: |
duke@1 | 2231 | pos = S.pos(); |
duke@1 | 2232 | S.nextToken(); |
jjg@308 | 2233 | return annotation(pos, AnnotationKind.DEFAULT_ANNO); |
duke@1 | 2234 | case LBRACE: |
duke@1 | 2235 | pos = S.pos(); |
duke@1 | 2236 | accept(LBRACE); |
duke@1 | 2237 | ListBuffer<JCExpression> buf = new ListBuffer<JCExpression>(); |
duke@1 | 2238 | if (S.token() != RBRACE) { |
duke@1 | 2239 | buf.append(annotationValue()); |
duke@1 | 2240 | while (S.token() == COMMA) { |
duke@1 | 2241 | S.nextToken(); |
duke@1 | 2242 | if (S.token() == RPAREN) break; |
duke@1 | 2243 | buf.append(annotationValue()); |
duke@1 | 2244 | } |
duke@1 | 2245 | } |
duke@1 | 2246 | accept(RBRACE); |
duke@1 | 2247 | return toP(F.at(pos).NewArray(null, List.<JCExpression>nil(), buf.toList())); |
duke@1 | 2248 | default: |
duke@1 | 2249 | mode = EXPR; |
duke@1 | 2250 | return term1(); |
duke@1 | 2251 | } |
duke@1 | 2252 | } |
duke@1 | 2253 | |
duke@1 | 2254 | /** VariableDeclarators = VariableDeclarator { "," VariableDeclarator } |
duke@1 | 2255 | */ |
duke@1 | 2256 | public <T extends ListBuffer<? super JCVariableDecl>> T variableDeclarators(JCModifiers mods, |
duke@1 | 2257 | JCExpression type, |
duke@1 | 2258 | T vdefs) |
duke@1 | 2259 | { |
duke@1 | 2260 | return variableDeclaratorsRest(S.pos(), mods, type, ident(), false, null, vdefs); |
duke@1 | 2261 | } |
duke@1 | 2262 | |
duke@1 | 2263 | /** VariableDeclaratorsRest = VariableDeclaratorRest { "," VariableDeclarator } |
duke@1 | 2264 | * ConstantDeclaratorsRest = ConstantDeclaratorRest { "," ConstantDeclarator } |
duke@1 | 2265 | * |
duke@1 | 2266 | * @param reqInit Is an initializer always required? |
duke@1 | 2267 | * @param dc The documentation comment for the variable declarations, or null. |
duke@1 | 2268 | */ |
duke@1 | 2269 | <T extends ListBuffer<? super JCVariableDecl>> T variableDeclaratorsRest(int pos, |
duke@1 | 2270 | JCModifiers mods, |
duke@1 | 2271 | JCExpression type, |
duke@1 | 2272 | Name name, |
duke@1 | 2273 | boolean reqInit, |
duke@1 | 2274 | String dc, |
duke@1 | 2275 | T vdefs) |
duke@1 | 2276 | { |
duke@1 | 2277 | vdefs.append(variableDeclaratorRest(pos, mods, type, name, reqInit, dc)); |
duke@1 | 2278 | while (S.token() == COMMA) { |
duke@1 | 2279 | // All but last of multiple declarators subsume a comma |
duke@1 | 2280 | storeEnd((JCTree)vdefs.elems.last(), S.endPos()); |
duke@1 | 2281 | S.nextToken(); |
duke@1 | 2282 | vdefs.append(variableDeclarator(mods, type, reqInit, dc)); |
duke@1 | 2283 | } |
duke@1 | 2284 | return vdefs; |
duke@1 | 2285 | } |
duke@1 | 2286 | |
duke@1 | 2287 | /** VariableDeclarator = Ident VariableDeclaratorRest |
duke@1 | 2288 | * ConstantDeclarator = Ident ConstantDeclaratorRest |
duke@1 | 2289 | */ |
duke@1 | 2290 | JCVariableDecl variableDeclarator(JCModifiers mods, JCExpression type, boolean reqInit, String dc) { |
duke@1 | 2291 | return variableDeclaratorRest(S.pos(), mods, type, ident(), reqInit, dc); |
duke@1 | 2292 | } |
duke@1 | 2293 | |
duke@1 | 2294 | /** VariableDeclaratorRest = BracketsOpt ["=" VariableInitializer] |
duke@1 | 2295 | * ConstantDeclaratorRest = BracketsOpt "=" VariableInitializer |
duke@1 | 2296 | * |
duke@1 | 2297 | * @param reqInit Is an initializer always required? |
duke@1 | 2298 | * @param dc The documentation comment for the variable declarations, or null. |
duke@1 | 2299 | */ |
duke@1 | 2300 | JCVariableDecl variableDeclaratorRest(int pos, JCModifiers mods, JCExpression type, Name name, |
duke@1 | 2301 | boolean reqInit, String dc) { |
duke@1 | 2302 | type = bracketsOpt(type); |
duke@1 | 2303 | JCExpression init = null; |
duke@1 | 2304 | if (S.token() == EQ) { |
duke@1 | 2305 | S.nextToken(); |
duke@1 | 2306 | init = variableInitializer(); |
duke@1 | 2307 | } |
mcimadamore@80 | 2308 | else if (reqInit) syntaxError(S.pos(), "expected", EQ); |
duke@1 | 2309 | JCVariableDecl result = |
duke@1 | 2310 | toP(F.at(pos).VarDef(mods, name, type, init)); |
duke@1 | 2311 | attach(result, dc); |
duke@1 | 2312 | return result; |
duke@1 | 2313 | } |
duke@1 | 2314 | |
duke@1 | 2315 | /** VariableDeclaratorId = Ident BracketsOpt |
duke@1 | 2316 | */ |
duke@1 | 2317 | JCVariableDecl variableDeclaratorId(JCModifiers mods, JCExpression type) { |
duke@1 | 2318 | int pos = S.pos(); |
duke@1 | 2319 | Name name = ident(); |
duke@1 | 2320 | if ((mods.flags & Flags.VARARGS) == 0) |
duke@1 | 2321 | type = bracketsOpt(type); |
duke@1 | 2322 | return toP(F.at(pos).VarDef(mods, name, type, null)); |
duke@1 | 2323 | } |
duke@1 | 2324 | |
duke@1 | 2325 | /** CompilationUnit = [ { "@" Annotation } PACKAGE Qualident ";"] {ImportDeclaration} {TypeDeclaration} |
duke@1 | 2326 | */ |
jjg@111 | 2327 | public JCTree.JCCompilationUnit parseCompilationUnit() { |
duke@1 | 2328 | int pos = S.pos(); |
duke@1 | 2329 | JCExpression pid = null; |
duke@1 | 2330 | String dc = S.docComment(); |
duke@1 | 2331 | JCModifiers mods = null; |
duke@1 | 2332 | List<JCAnnotation> packageAnnotations = List.nil(); |
duke@1 | 2333 | if (S.token() == MONKEYS_AT) |
duke@1 | 2334 | mods = modifiersOpt(); |
duke@1 | 2335 | |
duke@1 | 2336 | if (S.token() == PACKAGE) { |
duke@1 | 2337 | if (mods != null) { |
duke@1 | 2338 | checkNoMods(mods.flags); |
duke@1 | 2339 | packageAnnotations = mods.annotations; |
duke@1 | 2340 | mods = null; |
duke@1 | 2341 | } |
duke@1 | 2342 | S.nextToken(); |
duke@1 | 2343 | pid = qualident(); |
duke@1 | 2344 | accept(SEMI); |
duke@1 | 2345 | } |
duke@1 | 2346 | ListBuffer<JCTree> defs = new ListBuffer<JCTree>(); |
jjg@111 | 2347 | boolean checkForImports = true; |
duke@1 | 2348 | while (S.token() != EOF) { |
duke@1 | 2349 | if (S.pos() <= errorEndPos) { |
duke@1 | 2350 | // error recovery |
duke@1 | 2351 | skip(checkForImports, false, false, false); |
duke@1 | 2352 | if (S.token() == EOF) |
duke@1 | 2353 | break; |
duke@1 | 2354 | } |
duke@1 | 2355 | if (checkForImports && mods == null && S.token() == IMPORT) { |
duke@1 | 2356 | defs.append(importDeclaration()); |
duke@1 | 2357 | } else { |
duke@1 | 2358 | JCTree def = typeDeclaration(mods); |
duke@1 | 2359 | if (def instanceof JCExpressionStatement) |
duke@1 | 2360 | def = ((JCExpressionStatement)def).expr; |
duke@1 | 2361 | defs.append(def); |
duke@1 | 2362 | if (def instanceof JCClassDecl) |
duke@1 | 2363 | checkForImports = false; |
duke@1 | 2364 | mods = null; |
duke@1 | 2365 | } |
duke@1 | 2366 | } |
duke@1 | 2367 | JCTree.JCCompilationUnit toplevel = F.at(pos).TopLevel(packageAnnotations, pid, defs.toList()); |
duke@1 | 2368 | attach(toplevel, dc); |
duke@1 | 2369 | if (defs.elems.isEmpty()) |
duke@1 | 2370 | storeEnd(toplevel, S.prevEndPos()); |
jjg@111 | 2371 | if (keepDocComments) |
jjg@111 | 2372 | toplevel.docComments = docComments; |
jjg@111 | 2373 | if (keepLineMap) |
jjg@111 | 2374 | toplevel.lineMap = S.getLineMap(); |
duke@1 | 2375 | return toplevel; |
duke@1 | 2376 | } |
duke@1 | 2377 | |
duke@1 | 2378 | /** ImportDeclaration = IMPORT [ STATIC ] Ident { "." Ident } [ "." "*" ] ";" |
duke@1 | 2379 | */ |
duke@1 | 2380 | JCTree importDeclaration() { |
duke@1 | 2381 | int pos = S.pos(); |
duke@1 | 2382 | S.nextToken(); |
duke@1 | 2383 | boolean importStatic = false; |
duke@1 | 2384 | if (S.token() == STATIC) { |
duke@1 | 2385 | checkStaticImports(); |
duke@1 | 2386 | importStatic = true; |
duke@1 | 2387 | S.nextToken(); |
duke@1 | 2388 | } |
duke@1 | 2389 | JCExpression pid = toP(F.at(S.pos()).Ident(ident())); |
duke@1 | 2390 | do { |
duke@1 | 2391 | int pos1 = S.pos(); |
duke@1 | 2392 | accept(DOT); |
duke@1 | 2393 | if (S.token() == STAR) { |
duke@1 | 2394 | pid = to(F.at(pos1).Select(pid, names.asterisk)); |
duke@1 | 2395 | S.nextToken(); |
duke@1 | 2396 | break; |
duke@1 | 2397 | } else { |
duke@1 | 2398 | pid = toP(F.at(pos1).Select(pid, ident())); |
duke@1 | 2399 | } |
duke@1 | 2400 | } while (S.token() == DOT); |
duke@1 | 2401 | accept(SEMI); |
duke@1 | 2402 | return toP(F.at(pos).Import(pid, importStatic)); |
duke@1 | 2403 | } |
duke@1 | 2404 | |
duke@1 | 2405 | /** TypeDeclaration = ClassOrInterfaceOrEnumDeclaration |
duke@1 | 2406 | * | ";" |
duke@1 | 2407 | */ |
duke@1 | 2408 | JCTree typeDeclaration(JCModifiers mods) { |
duke@1 | 2409 | int pos = S.pos(); |
duke@1 | 2410 | if (mods == null && S.token() == SEMI) { |
duke@1 | 2411 | S.nextToken(); |
duke@1 | 2412 | return toP(F.at(pos).Skip()); |
duke@1 | 2413 | } else { |
duke@1 | 2414 | String dc = S.docComment(); |
duke@1 | 2415 | return classOrInterfaceOrEnumDeclaration(modifiersOpt(mods), dc); |
duke@1 | 2416 | } |
duke@1 | 2417 | } |
duke@1 | 2418 | |
duke@1 | 2419 | /** ClassOrInterfaceOrEnumDeclaration = ModifiersOpt |
duke@1 | 2420 | * (ClassDeclaration | InterfaceDeclaration | EnumDeclaration) |
duke@1 | 2421 | * @param mods Any modifiers starting the class or interface declaration |
duke@1 | 2422 | * @param dc The documentation comment for the class, or null. |
duke@1 | 2423 | */ |
duke@1 | 2424 | JCStatement classOrInterfaceOrEnumDeclaration(JCModifiers mods, String dc) { |
duke@1 | 2425 | if (S.token() == CLASS) { |
duke@1 | 2426 | return classDeclaration(mods, dc); |
duke@1 | 2427 | } else if (S.token() == INTERFACE) { |
duke@1 | 2428 | return interfaceDeclaration(mods, dc); |
duke@1 | 2429 | } else if (allowEnums) { |
duke@1 | 2430 | if (S.token() == ENUM) { |
duke@1 | 2431 | return enumDeclaration(mods, dc); |
duke@1 | 2432 | } else { |
duke@1 | 2433 | int pos = S.pos(); |
duke@1 | 2434 | List<JCTree> errs; |
duke@1 | 2435 | if (S.token() == IDENTIFIER) { |
duke@1 | 2436 | errs = List.<JCTree>of(mods, toP(F.at(pos).Ident(ident()))); |
duke@1 | 2437 | setErrorEndPos(S.pos()); |
duke@1 | 2438 | } else { |
duke@1 | 2439 | errs = List.<JCTree>of(mods); |
duke@1 | 2440 | } |
duke@1 | 2441 | return toP(F.Exec(syntaxError(pos, errs, "expected3", |
mcimadamore@80 | 2442 | CLASS, INTERFACE, ENUM))); |
duke@1 | 2443 | } |
duke@1 | 2444 | } else { |
duke@1 | 2445 | if (S.token() == ENUM) { |
duke@1 | 2446 | log.error(S.pos(), "enums.not.supported.in.source", source.name); |
duke@1 | 2447 | allowEnums = true; |
duke@1 | 2448 | return enumDeclaration(mods, dc); |
duke@1 | 2449 | } |
duke@1 | 2450 | int pos = S.pos(); |
duke@1 | 2451 | List<JCTree> errs; |
duke@1 | 2452 | if (S.token() == IDENTIFIER) { |
duke@1 | 2453 | errs = List.<JCTree>of(mods, toP(F.at(pos).Ident(ident()))); |
duke@1 | 2454 | setErrorEndPos(S.pos()); |
duke@1 | 2455 | } else { |
duke@1 | 2456 | errs = List.<JCTree>of(mods); |
duke@1 | 2457 | } |
duke@1 | 2458 | return toP(F.Exec(syntaxError(pos, errs, "expected2", |
mcimadamore@80 | 2459 | CLASS, INTERFACE))); |
duke@1 | 2460 | } |
duke@1 | 2461 | } |
duke@1 | 2462 | |
duke@1 | 2463 | /** ClassDeclaration = CLASS Ident TypeParametersOpt [EXTENDS Type] |
duke@1 | 2464 | * [IMPLEMENTS TypeList] ClassBody |
duke@1 | 2465 | * @param mods The modifiers starting the class declaration |
duke@1 | 2466 | * @param dc The documentation comment for the class, or null. |
duke@1 | 2467 | */ |
duke@1 | 2468 | JCClassDecl classDeclaration(JCModifiers mods, String dc) { |
duke@1 | 2469 | int pos = S.pos(); |
duke@1 | 2470 | accept(CLASS); |
duke@1 | 2471 | Name name = ident(); |
duke@1 | 2472 | |
duke@1 | 2473 | List<JCTypeParameter> typarams = typeParametersOpt(); |
duke@1 | 2474 | |
duke@1 | 2475 | JCTree extending = null; |
duke@1 | 2476 | if (S.token() == EXTENDS) { |
duke@1 | 2477 | S.nextToken(); |
jjg@111 | 2478 | extending = parseType(); |
duke@1 | 2479 | } |
duke@1 | 2480 | List<JCExpression> implementing = List.nil(); |
duke@1 | 2481 | if (S.token() == IMPLEMENTS) { |
duke@1 | 2482 | S.nextToken(); |
duke@1 | 2483 | implementing = typeList(); |
duke@1 | 2484 | } |
duke@1 | 2485 | List<JCTree> defs = classOrInterfaceBody(name, false); |
duke@1 | 2486 | JCClassDecl result = toP(F.at(pos).ClassDef( |
duke@1 | 2487 | mods, name, typarams, extending, implementing, defs)); |
duke@1 | 2488 | attach(result, dc); |
duke@1 | 2489 | return result; |
duke@1 | 2490 | } |
duke@1 | 2491 | |
duke@1 | 2492 | /** InterfaceDeclaration = INTERFACE Ident TypeParametersOpt |
duke@1 | 2493 | * [EXTENDS TypeList] InterfaceBody |
duke@1 | 2494 | * @param mods The modifiers starting the interface declaration |
duke@1 | 2495 | * @param dc The documentation comment for the interface, or null. |
duke@1 | 2496 | */ |
duke@1 | 2497 | JCClassDecl interfaceDeclaration(JCModifiers mods, String dc) { |
duke@1 | 2498 | int pos = S.pos(); |
duke@1 | 2499 | accept(INTERFACE); |
duke@1 | 2500 | Name name = ident(); |
duke@1 | 2501 | |
duke@1 | 2502 | List<JCTypeParameter> typarams = typeParametersOpt(); |
duke@1 | 2503 | |
duke@1 | 2504 | List<JCExpression> extending = List.nil(); |
duke@1 | 2505 | if (S.token() == EXTENDS) { |
duke@1 | 2506 | S.nextToken(); |
duke@1 | 2507 | extending = typeList(); |
duke@1 | 2508 | } |
duke@1 | 2509 | List<JCTree> defs = classOrInterfaceBody(name, true); |
duke@1 | 2510 | JCClassDecl result = toP(F.at(pos).ClassDef( |
duke@1 | 2511 | mods, name, typarams, null, extending, defs)); |
duke@1 | 2512 | attach(result, dc); |
duke@1 | 2513 | return result; |
duke@1 | 2514 | } |
duke@1 | 2515 | |
duke@1 | 2516 | /** EnumDeclaration = ENUM Ident [IMPLEMENTS TypeList] EnumBody |
duke@1 | 2517 | * @param mods The modifiers starting the enum declaration |
duke@1 | 2518 | * @param dc The documentation comment for the enum, or null. |
duke@1 | 2519 | */ |
duke@1 | 2520 | JCClassDecl enumDeclaration(JCModifiers mods, String dc) { |
duke@1 | 2521 | int pos = S.pos(); |
duke@1 | 2522 | accept(ENUM); |
duke@1 | 2523 | Name name = ident(); |
duke@1 | 2524 | |
duke@1 | 2525 | List<JCExpression> implementing = List.nil(); |
duke@1 | 2526 | if (S.token() == IMPLEMENTS) { |
duke@1 | 2527 | S.nextToken(); |
duke@1 | 2528 | implementing = typeList(); |
duke@1 | 2529 | } |
duke@1 | 2530 | |
duke@1 | 2531 | List<JCTree> defs = enumBody(name); |
duke@1 | 2532 | JCModifiers newMods = |
duke@1 | 2533 | F.at(mods.pos).Modifiers(mods.flags|Flags.ENUM, mods.annotations); |
duke@1 | 2534 | JCClassDecl result = toP(F.at(pos). |
duke@1 | 2535 | ClassDef(newMods, name, List.<JCTypeParameter>nil(), |
duke@1 | 2536 | null, implementing, defs)); |
duke@1 | 2537 | attach(result, dc); |
duke@1 | 2538 | return result; |
duke@1 | 2539 | } |
duke@1 | 2540 | |
duke@1 | 2541 | /** EnumBody = "{" { EnumeratorDeclarationList } [","] |
duke@1 | 2542 | * [ ";" {ClassBodyDeclaration} ] "}" |
duke@1 | 2543 | */ |
duke@1 | 2544 | List<JCTree> enumBody(Name enumName) { |
duke@1 | 2545 | accept(LBRACE); |
duke@1 | 2546 | ListBuffer<JCTree> defs = new ListBuffer<JCTree>(); |
duke@1 | 2547 | if (S.token() == COMMA) { |
duke@1 | 2548 | S.nextToken(); |
duke@1 | 2549 | } else if (S.token() != RBRACE && S.token() != SEMI) { |
duke@1 | 2550 | defs.append(enumeratorDeclaration(enumName)); |
duke@1 | 2551 | while (S.token() == COMMA) { |
duke@1 | 2552 | S.nextToken(); |
duke@1 | 2553 | if (S.token() == RBRACE || S.token() == SEMI) break; |
duke@1 | 2554 | defs.append(enumeratorDeclaration(enumName)); |
duke@1 | 2555 | } |
duke@1 | 2556 | if (S.token() != SEMI && S.token() != RBRACE) { |
duke@1 | 2557 | defs.append(syntaxError(S.pos(), "expected3", |
mcimadamore@80 | 2558 | COMMA, RBRACE, SEMI)); |
duke@1 | 2559 | S.nextToken(); |
duke@1 | 2560 | } |
duke@1 | 2561 | } |
duke@1 | 2562 | if (S.token() == SEMI) { |
duke@1 | 2563 | S.nextToken(); |
duke@1 | 2564 | while (S.token() != RBRACE && S.token() != EOF) { |
duke@1 | 2565 | defs.appendList(classOrInterfaceBodyDeclaration(enumName, |
duke@1 | 2566 | false)); |
duke@1 | 2567 | if (S.pos() <= errorEndPos) { |
duke@1 | 2568 | // error recovery |
duke@1 | 2569 | skip(false, true, true, false); |
duke@1 | 2570 | } |
duke@1 | 2571 | } |
duke@1 | 2572 | } |
duke@1 | 2573 | accept(RBRACE); |
duke@1 | 2574 | return defs.toList(); |
duke@1 | 2575 | } |
duke@1 | 2576 | |
duke@1 | 2577 | /** EnumeratorDeclaration = AnnotationsOpt [TypeArguments] IDENTIFIER [ Arguments ] [ "{" ClassBody "}" ] |
duke@1 | 2578 | */ |
duke@1 | 2579 | JCTree enumeratorDeclaration(Name enumName) { |
duke@1 | 2580 | String dc = S.docComment(); |
duke@1 | 2581 | int flags = Flags.PUBLIC|Flags.STATIC|Flags.FINAL|Flags.ENUM; |
duke@1 | 2582 | if (S.deprecatedFlag()) { |
duke@1 | 2583 | flags |= Flags.DEPRECATED; |
duke@1 | 2584 | S.resetDeprecatedFlag(); |
duke@1 | 2585 | } |
duke@1 | 2586 | int pos = S.pos(); |
jjg@308 | 2587 | List<JCAnnotation> annotations = annotationsOpt(AnnotationKind.DEFAULT_ANNO); |
duke@1 | 2588 | JCModifiers mods = F.at(annotations.isEmpty() ? Position.NOPOS : pos).Modifiers(flags, annotations); |
duke@1 | 2589 | List<JCExpression> typeArgs = typeArgumentsOpt(); |
duke@1 | 2590 | int identPos = S.pos(); |
duke@1 | 2591 | Name name = ident(); |
duke@1 | 2592 | int createPos = S.pos(); |
duke@1 | 2593 | List<JCExpression> args = (S.token() == LPAREN) |
duke@1 | 2594 | ? arguments() : List.<JCExpression>nil(); |
duke@1 | 2595 | JCClassDecl body = null; |
duke@1 | 2596 | if (S.token() == LBRACE) { |
duke@1 | 2597 | JCModifiers mods1 = F.at(Position.NOPOS).Modifiers(Flags.ENUM | Flags.STATIC); |
duke@1 | 2598 | List<JCTree> defs = classOrInterfaceBody(names.empty, false); |
duke@1 | 2599 | body = toP(F.at(identPos).AnonymousClassDef(mods1, defs)); |
duke@1 | 2600 | } |
duke@1 | 2601 | if (args.isEmpty() && body == null) |
duke@1 | 2602 | createPos = Position.NOPOS; |
duke@1 | 2603 | JCIdent ident = F.at(Position.NOPOS).Ident(enumName); |
duke@1 | 2604 | JCNewClass create = F.at(createPos).NewClass(null, typeArgs, ident, args, body); |
duke@1 | 2605 | if (createPos != Position.NOPOS) |
duke@1 | 2606 | storeEnd(create, S.prevEndPos()); |
duke@1 | 2607 | ident = F.at(Position.NOPOS).Ident(enumName); |
duke@1 | 2608 | JCTree result = toP(F.at(pos).VarDef(mods, name, ident, create)); |
duke@1 | 2609 | attach(result, dc); |
duke@1 | 2610 | return result; |
duke@1 | 2611 | } |
duke@1 | 2612 | |
duke@1 | 2613 | /** TypeList = Type {"," Type} |
duke@1 | 2614 | */ |
duke@1 | 2615 | List<JCExpression> typeList() { |
duke@1 | 2616 | ListBuffer<JCExpression> ts = new ListBuffer<JCExpression>(); |
jjg@111 | 2617 | ts.append(parseType()); |
duke@1 | 2618 | while (S.token() == COMMA) { |
duke@1 | 2619 | S.nextToken(); |
jjg@111 | 2620 | ts.append(parseType()); |
duke@1 | 2621 | } |
duke@1 | 2622 | return ts.toList(); |
duke@1 | 2623 | } |
duke@1 | 2624 | |
duke@1 | 2625 | /** ClassBody = "{" {ClassBodyDeclaration} "}" |
duke@1 | 2626 | * InterfaceBody = "{" {InterfaceBodyDeclaration} "}" |
duke@1 | 2627 | */ |
duke@1 | 2628 | List<JCTree> classOrInterfaceBody(Name className, boolean isInterface) { |
duke@1 | 2629 | accept(LBRACE); |
duke@1 | 2630 | if (S.pos() <= errorEndPos) { |
duke@1 | 2631 | // error recovery |
duke@1 | 2632 | skip(false, true, false, false); |
duke@1 | 2633 | if (S.token() == LBRACE) |
duke@1 | 2634 | S.nextToken(); |
duke@1 | 2635 | } |
duke@1 | 2636 | ListBuffer<JCTree> defs = new ListBuffer<JCTree>(); |
duke@1 | 2637 | while (S.token() != RBRACE && S.token() != EOF) { |
duke@1 | 2638 | defs.appendList(classOrInterfaceBodyDeclaration(className, isInterface)); |
duke@1 | 2639 | if (S.pos() <= errorEndPos) { |
duke@1 | 2640 | // error recovery |
duke@1 | 2641 | skip(false, true, true, false); |
duke@1 | 2642 | } |
duke@1 | 2643 | } |
duke@1 | 2644 | accept(RBRACE); |
duke@1 | 2645 | return defs.toList(); |
duke@1 | 2646 | } |
duke@1 | 2647 | |
duke@1 | 2648 | /** ClassBodyDeclaration = |
duke@1 | 2649 | * ";" |
duke@1 | 2650 | * | [STATIC] Block |
duke@1 | 2651 | * | ModifiersOpt |
duke@1 | 2652 | * ( Type Ident |
duke@1 | 2653 | * ( VariableDeclaratorsRest ";" | MethodDeclaratorRest ) |
duke@1 | 2654 | * | VOID Ident MethodDeclaratorRest |
duke@1 | 2655 | * | TypeParameters (Type | VOID) Ident MethodDeclaratorRest |
duke@1 | 2656 | * | Ident ConstructorDeclaratorRest |
duke@1 | 2657 | * | TypeParameters Ident ConstructorDeclaratorRest |
duke@1 | 2658 | * | ClassOrInterfaceOrEnumDeclaration |
duke@1 | 2659 | * ) |
duke@1 | 2660 | * InterfaceBodyDeclaration = |
duke@1 | 2661 | * ";" |
duke@1 | 2662 | * | ModifiersOpt Type Ident |
duke@1 | 2663 | * ( ConstantDeclaratorsRest | InterfaceMethodDeclaratorRest ";" ) |
duke@1 | 2664 | */ |
duke@1 | 2665 | List<JCTree> classOrInterfaceBodyDeclaration(Name className, boolean isInterface) { |
duke@1 | 2666 | if (S.token() == SEMI) { |
duke@1 | 2667 | S.nextToken(); |
duke@1 | 2668 | return List.<JCTree>of(F.at(Position.NOPOS).Block(0, List.<JCStatement>nil())); |
duke@1 | 2669 | } else { |
duke@1 | 2670 | String dc = S.docComment(); |
duke@1 | 2671 | int pos = S.pos(); |
duke@1 | 2672 | JCModifiers mods = modifiersOpt(); |
duke@1 | 2673 | if (S.token() == CLASS || |
duke@1 | 2674 | S.token() == INTERFACE || |
duke@1 | 2675 | allowEnums && S.token() == ENUM) { |
duke@1 | 2676 | return List.<JCTree>of(classOrInterfaceOrEnumDeclaration(mods, dc)); |
duke@1 | 2677 | } else if (S.token() == LBRACE && !isInterface && |
duke@1 | 2678 | (mods.flags & Flags.StandardFlags & ~Flags.STATIC) == 0 && |
duke@1 | 2679 | mods.annotations.isEmpty()) { |
duke@1 | 2680 | return List.<JCTree>of(block(pos, mods.flags)); |
duke@1 | 2681 | } else { |
duke@1 | 2682 | pos = S.pos(); |
duke@1 | 2683 | List<JCTypeParameter> typarams = typeParametersOpt(); |
duke@1 | 2684 | // Hack alert: if there are type arguments but no Modifiers, the start |
duke@1 | 2685 | // position will be lost unless we set the Modifiers position. There |
duke@1 | 2686 | // should be an AST node for type parameters (BugId 5005090). |
duke@1 | 2687 | if (typarams.length() > 0 && mods.pos == Position.NOPOS) { |
duke@1 | 2688 | mods.pos = pos; |
duke@1 | 2689 | } |
jjg@308 | 2690 | |
jjg@308 | 2691 | List<JCAnnotation> annosAfterParams = annotationsOpt(AnnotationKind.DEFAULT_ANNO); |
jjg@308 | 2692 | |
duke@1 | 2693 | Token token = S.token(); |
duke@1 | 2694 | Name name = S.name(); |
duke@1 | 2695 | pos = S.pos(); |
duke@1 | 2696 | JCExpression type; |
duke@1 | 2697 | boolean isVoid = S.token() == VOID; |
duke@1 | 2698 | if (isVoid) { |
jjg@308 | 2699 | if (annosAfterParams.nonEmpty()) |
jjg@308 | 2700 | illegal(annosAfterParams.head.pos); |
duke@1 | 2701 | type = to(F.at(pos).TypeIdent(TypeTags.VOID)); |
duke@1 | 2702 | S.nextToken(); |
duke@1 | 2703 | } else { |
jjg@308 | 2704 | mods.annotations = mods.annotations.appendList(annosAfterParams); |
jjg@308 | 2705 | // method returns types are un-annotated types |
jjg@308 | 2706 | type = unannotatedType(); |
duke@1 | 2707 | } |
duke@1 | 2708 | if (S.token() == LPAREN && !isInterface && type.getTag() == JCTree.IDENT) { |
duke@1 | 2709 | if (isInterface || name != className) |
duke@1 | 2710 | log.error(pos, "invalid.meth.decl.ret.type.req"); |
duke@1 | 2711 | return List.of(methodDeclaratorRest( |
duke@1 | 2712 | pos, mods, null, names.init, typarams, |
duke@1 | 2713 | isInterface, true, dc)); |
duke@1 | 2714 | } else { |
duke@1 | 2715 | pos = S.pos(); |
duke@1 | 2716 | name = ident(); |
duke@1 | 2717 | if (S.token() == LPAREN) { |
duke@1 | 2718 | return List.of(methodDeclaratorRest( |
duke@1 | 2719 | pos, mods, type, name, typarams, |
duke@1 | 2720 | isInterface, isVoid, dc)); |
duke@1 | 2721 | } else if (!isVoid && typarams.isEmpty()) { |
duke@1 | 2722 | List<JCTree> defs = |
duke@1 | 2723 | variableDeclaratorsRest(pos, mods, type, name, isInterface, dc, |
duke@1 | 2724 | new ListBuffer<JCTree>()).toList(); |
duke@1 | 2725 | storeEnd(defs.last(), S.endPos()); |
duke@1 | 2726 | accept(SEMI); |
duke@1 | 2727 | return defs; |
duke@1 | 2728 | } else { |
duke@1 | 2729 | pos = S.pos(); |
duke@1 | 2730 | List<JCTree> err = isVoid |
duke@1 | 2731 | ? List.<JCTree>of(toP(F.at(pos).MethodDef(mods, name, type, typarams, |
duke@1 | 2732 | List.<JCVariableDecl>nil(), List.<JCExpression>nil(), null, null))) |
duke@1 | 2733 | : null; |
mcimadamore@80 | 2734 | return List.<JCTree>of(syntaxError(S.pos(), err, "expected", LPAREN)); |
duke@1 | 2735 | } |
duke@1 | 2736 | } |
duke@1 | 2737 | } |
duke@1 | 2738 | } |
duke@1 | 2739 | } |
duke@1 | 2740 | |
duke@1 | 2741 | /** MethodDeclaratorRest = |
jjg@308 | 2742 | * FormalParameters BracketsOpt [Annotations] [Throws TypeList] ( MethodBody | [DEFAULT AnnotationValue] ";") |
duke@1 | 2743 | * VoidMethodDeclaratorRest = |
jjg@308 | 2744 | * FormalParameters [Annotations] [Throws TypeList] ( MethodBody | ";") |
duke@1 | 2745 | * InterfaceMethodDeclaratorRest = |
jjg@308 | 2746 | * FormalParameters BracketsOpt [Annotations] [THROWS TypeList] ";" |
duke@1 | 2747 | * VoidInterfaceMethodDeclaratorRest = |
jjg@308 | 2748 | * FormalParameters [Annotations] [THROWS TypeList] ";" |
duke@1 | 2749 | * ConstructorDeclaratorRest = |
jjg@308 | 2750 | * "(" FormalParameterListOpt ")" [Annotations] [THROWS TypeList] MethodBody |
duke@1 | 2751 | */ |
duke@1 | 2752 | JCTree methodDeclaratorRest(int pos, |
duke@1 | 2753 | JCModifiers mods, |
duke@1 | 2754 | JCExpression type, |
duke@1 | 2755 | Name name, |
duke@1 | 2756 | List<JCTypeParameter> typarams, |
duke@1 | 2757 | boolean isInterface, boolean isVoid, |
duke@1 | 2758 | String dc) { |
duke@1 | 2759 | List<JCVariableDecl> params = formalParameters(); |
jjg@308 | 2760 | |
jjg@308 | 2761 | List<JCTypeAnnotation> receiverAnnotations; |
jjg@308 | 2762 | if (!isVoid) { |
jjg@308 | 2763 | // need to distinguish between receiver anno and array anno |
jjg@308 | 2764 | // look at typeAnnotationsPushedBack comment |
jjg@308 | 2765 | this.permitTypeAnnotationsPushBack = true; |
jjg@308 | 2766 | type = methodReturnArrayRest(type); |
jjg@308 | 2767 | this.permitTypeAnnotationsPushBack = false; |
jjg@308 | 2768 | if (typeAnnotationsPushedBack == null) |
jjg@308 | 2769 | receiverAnnotations = List.nil(); |
jjg@308 | 2770 | else |
jjg@308 | 2771 | receiverAnnotations = typeAnnotationsPushedBack; |
jjg@308 | 2772 | typeAnnotationsPushedBack = null; |
jjg@308 | 2773 | } else |
jjg@308 | 2774 | receiverAnnotations = typeAnnotationsOpt(); |
jjg@308 | 2775 | |
duke@1 | 2776 | List<JCExpression> thrown = List.nil(); |
duke@1 | 2777 | if (S.token() == THROWS) { |
duke@1 | 2778 | S.nextToken(); |
duke@1 | 2779 | thrown = qualidentList(); |
duke@1 | 2780 | } |
duke@1 | 2781 | JCBlock body = null; |
duke@1 | 2782 | JCExpression defaultValue; |
duke@1 | 2783 | if (S.token() == LBRACE) { |
duke@1 | 2784 | body = block(); |
duke@1 | 2785 | defaultValue = null; |
duke@1 | 2786 | } else { |
duke@1 | 2787 | if (S.token() == DEFAULT) { |
duke@1 | 2788 | accept(DEFAULT); |
duke@1 | 2789 | defaultValue = annotationValue(); |
duke@1 | 2790 | } else { |
duke@1 | 2791 | defaultValue = null; |
duke@1 | 2792 | } |
duke@1 | 2793 | accept(SEMI); |
duke@1 | 2794 | if (S.pos() <= errorEndPos) { |
duke@1 | 2795 | // error recovery |
duke@1 | 2796 | skip(false, true, false, false); |
duke@1 | 2797 | if (S.token() == LBRACE) { |
duke@1 | 2798 | body = block(); |
duke@1 | 2799 | } |
duke@1 | 2800 | } |
duke@1 | 2801 | } |
duke@1 | 2802 | JCMethodDecl result = |
duke@1 | 2803 | toP(F.at(pos).MethodDef(mods, name, type, typarams, |
jjg@308 | 2804 | params, receiverAnnotations, thrown, |
duke@1 | 2805 | body, defaultValue)); |
duke@1 | 2806 | attach(result, dc); |
duke@1 | 2807 | return result; |
duke@1 | 2808 | } |
duke@1 | 2809 | |
jjg@308 | 2810 | /** Parses the array levels after the format parameters list, and append |
jjg@308 | 2811 | * them to the return type, while preseving the order of type annotations |
jjg@308 | 2812 | */ |
jjg@308 | 2813 | private JCExpression methodReturnArrayRest(JCExpression type) { |
jjg@308 | 2814 | if (type.getTag() != JCTree.TYPEARRAY) |
jjg@308 | 2815 | return bracketsOpt(type); |
jjg@308 | 2816 | |
jjg@308 | 2817 | JCArrayTypeTree baseArray = (JCArrayTypeTree)type; |
jjg@308 | 2818 | while (TreeInfo.typeIn(baseArray.elemtype) instanceof JCArrayTypeTree) |
jjg@308 | 2819 | baseArray = (JCArrayTypeTree)TreeInfo.typeIn(baseArray.elemtype); |
jjg@308 | 2820 | |
jjg@308 | 2821 | if (baseArray.elemtype.getTag() == JCTree.ANNOTATED_TYPE) { |
jjg@308 | 2822 | JCAnnotatedType at = (JCAnnotatedType)baseArray.elemtype; |
jjg@308 | 2823 | at.underlyingType = bracketsOpt(at.underlyingType); |
jjg@308 | 2824 | } else { |
jjg@308 | 2825 | baseArray.elemtype = bracketsOpt(baseArray.elemtype); |
jjg@308 | 2826 | } |
jjg@308 | 2827 | |
jjg@308 | 2828 | return type; |
jjg@308 | 2829 | } |
jjg@308 | 2830 | |
jjg@308 | 2831 | /** QualidentList = [Annotations] Qualident {"," [Annotations] Qualident} |
duke@1 | 2832 | */ |
duke@1 | 2833 | List<JCExpression> qualidentList() { |
duke@1 | 2834 | ListBuffer<JCExpression> ts = new ListBuffer<JCExpression>(); |
jjg@308 | 2835 | |
jjg@308 | 2836 | List<JCTypeAnnotation> typeAnnos = typeAnnotationsOpt(); |
jjg@308 | 2837 | if (!typeAnnos.isEmpty()) |
jjg@308 | 2838 | ts.append(F.AnnotatedType(typeAnnos, qualident())); |
jjg@308 | 2839 | else |
jjg@308 | 2840 | ts.append(qualident()); |
duke@1 | 2841 | while (S.token() == COMMA) { |
duke@1 | 2842 | S.nextToken(); |
jjg@308 | 2843 | |
jjg@308 | 2844 | typeAnnos = typeAnnotationsOpt(); |
jjg@308 | 2845 | if (!typeAnnos.isEmpty()) |
jjg@308 | 2846 | ts.append(F.AnnotatedType(typeAnnos, qualident())); |
jjg@308 | 2847 | else |
jjg@308 | 2848 | ts.append(qualident()); |
duke@1 | 2849 | } |
duke@1 | 2850 | return ts.toList(); |
duke@1 | 2851 | } |
duke@1 | 2852 | |
duke@1 | 2853 | /** TypeParametersOpt = ["<" TypeParameter {"," TypeParameter} ">"] |
duke@1 | 2854 | */ |
duke@1 | 2855 | List<JCTypeParameter> typeParametersOpt() { |
duke@1 | 2856 | if (S.token() == LT) { |
duke@1 | 2857 | checkGenerics(); |
duke@1 | 2858 | ListBuffer<JCTypeParameter> typarams = new ListBuffer<JCTypeParameter>(); |
duke@1 | 2859 | S.nextToken(); |
duke@1 | 2860 | typarams.append(typeParameter()); |
duke@1 | 2861 | while (S.token() == COMMA) { |
duke@1 | 2862 | S.nextToken(); |
duke@1 | 2863 | typarams.append(typeParameter()); |
duke@1 | 2864 | } |
duke@1 | 2865 | accept(GT); |
duke@1 | 2866 | return typarams.toList(); |
duke@1 | 2867 | } else { |
duke@1 | 2868 | return List.nil(); |
duke@1 | 2869 | } |
duke@1 | 2870 | } |
duke@1 | 2871 | |
jjg@308 | 2872 | /** TypeParameter = [Annotations] TypeVariable [TypeParameterBound] |
duke@1 | 2873 | * TypeParameterBound = EXTENDS Type {"&" Type} |
duke@1 | 2874 | * TypeVariable = Ident |
duke@1 | 2875 | */ |
duke@1 | 2876 | JCTypeParameter typeParameter() { |
duke@1 | 2877 | int pos = S.pos(); |
jjg@308 | 2878 | List<JCTypeAnnotation> annos = typeAnnotationsOpt(); |
duke@1 | 2879 | Name name = ident(); |
duke@1 | 2880 | ListBuffer<JCExpression> bounds = new ListBuffer<JCExpression>(); |
duke@1 | 2881 | if (S.token() == EXTENDS) { |
duke@1 | 2882 | S.nextToken(); |
jjg@111 | 2883 | bounds.append(parseType()); |
duke@1 | 2884 | while (S.token() == AMP) { |
duke@1 | 2885 | S.nextToken(); |
jjg@111 | 2886 | bounds.append(parseType()); |
duke@1 | 2887 | } |
duke@1 | 2888 | } |
jjg@308 | 2889 | return toP(F.at(pos).TypeParameter(name, bounds.toList(), annos)); |
duke@1 | 2890 | } |
duke@1 | 2891 | |
duke@1 | 2892 | /** FormalParameters = "(" [ FormalParameterList ] ")" |
duke@1 | 2893 | * FormalParameterList = [ FormalParameterListNovarargs , ] LastFormalParameter |
duke@1 | 2894 | * FormalParameterListNovarargs = [ FormalParameterListNovarargs , ] FormalParameter |
duke@1 | 2895 | */ |
duke@1 | 2896 | List<JCVariableDecl> formalParameters() { |
duke@1 | 2897 | ListBuffer<JCVariableDecl> params = new ListBuffer<JCVariableDecl>(); |
duke@1 | 2898 | JCVariableDecl lastParam = null; |
duke@1 | 2899 | accept(LPAREN); |
duke@1 | 2900 | if (S.token() != RPAREN) { |
duke@1 | 2901 | params.append(lastParam = formalParameter()); |
duke@1 | 2902 | while ((lastParam.mods.flags & Flags.VARARGS) == 0 && S.token() == COMMA) { |
duke@1 | 2903 | S.nextToken(); |
duke@1 | 2904 | params.append(lastParam = formalParameter()); |
duke@1 | 2905 | } |
duke@1 | 2906 | } |
duke@1 | 2907 | accept(RPAREN); |
duke@1 | 2908 | return params.toList(); |
duke@1 | 2909 | } |
duke@1 | 2910 | |
duke@1 | 2911 | JCModifiers optFinal(long flags) { |
duke@1 | 2912 | JCModifiers mods = modifiersOpt(); |
duke@1 | 2913 | checkNoMods(mods.flags & ~(Flags.FINAL | Flags.DEPRECATED)); |
duke@1 | 2914 | mods.flags |= flags; |
duke@1 | 2915 | return mods; |
duke@1 | 2916 | } |
duke@1 | 2917 | |
duke@1 | 2918 | /** FormalParameter = { FINAL | '@' Annotation } Type VariableDeclaratorId |
duke@1 | 2919 | * LastFormalParameter = { FINAL | '@' Annotation } Type '...' Ident | FormalParameter |
duke@1 | 2920 | */ |
duke@1 | 2921 | JCVariableDecl formalParameter() { |
duke@1 | 2922 | JCModifiers mods = optFinal(Flags.PARAMETER); |
jjg@308 | 2923 | // need to distinguish between vararg annos and array annos |
jjg@308 | 2924 | // look at typeAnnotaitonsPushedBack comment |
jjg@308 | 2925 | this.permitTypeAnnotationsPushBack = true; |
jjg@111 | 2926 | JCExpression type = parseType(); |
jjg@308 | 2927 | this.permitTypeAnnotationsPushBack = false; |
jjg@308 | 2928 | |
duke@1 | 2929 | if (S.token() == ELLIPSIS) { |
jjg@308 | 2930 | List<JCTypeAnnotation> varargsAnnos = typeAnnotationsPushedBack; |
jjg@308 | 2931 | typeAnnotationsPushedBack = null; |
duke@1 | 2932 | checkVarargs(); |
duke@1 | 2933 | mods.flags |= Flags.VARARGS; |
jjg@308 | 2934 | // insert var arg type annotations |
jjg@308 | 2935 | if (varargsAnnos != null && varargsAnnos.nonEmpty()) |
jjg@308 | 2936 | type = F.at(S.pos()).AnnotatedType(varargsAnnos, type); |
duke@1 | 2937 | type = to(F.at(S.pos()).TypeArray(type)); |
jjg@308 | 2938 | |
duke@1 | 2939 | S.nextToken(); |
jjg@308 | 2940 | } else { |
jjg@308 | 2941 | // if not a var arg, then typeAnnotationsPushedBack should be null |
jjg@308 | 2942 | if (typeAnnotationsPushedBack != null |
jjg@308 | 2943 | && !typeAnnotationsPushedBack.isEmpty()) { |
jjg@308 | 2944 | reportSyntaxError(typeAnnotationsPushedBack.head.pos, |
jjg@308 | 2945 | "illegal.start.of.type"); |
jjg@308 | 2946 | } |
jjg@308 | 2947 | typeAnnotationsPushedBack = null; |
duke@1 | 2948 | } |
duke@1 | 2949 | return variableDeclaratorId(mods, type); |
duke@1 | 2950 | } |
duke@1 | 2951 | |
duke@1 | 2952 | /* ---------- auxiliary methods -------------- */ |
duke@1 | 2953 | |
duke@1 | 2954 | /** Check that given tree is a legal expression statement. |
duke@1 | 2955 | */ |
duke@1 | 2956 | protected JCExpression checkExprStat(JCExpression t) { |
duke@1 | 2957 | switch(t.getTag()) { |
duke@1 | 2958 | case JCTree.PREINC: case JCTree.PREDEC: |
duke@1 | 2959 | case JCTree.POSTINC: case JCTree.POSTDEC: |
duke@1 | 2960 | case JCTree.ASSIGN: |
duke@1 | 2961 | case JCTree.BITOR_ASG: case JCTree.BITXOR_ASG: case JCTree.BITAND_ASG: |
duke@1 | 2962 | case JCTree.SL_ASG: case JCTree.SR_ASG: case JCTree.USR_ASG: |
duke@1 | 2963 | case JCTree.PLUS_ASG: case JCTree.MINUS_ASG: |
duke@1 | 2964 | case JCTree.MUL_ASG: case JCTree.DIV_ASG: case JCTree.MOD_ASG: |
duke@1 | 2965 | case JCTree.APPLY: case JCTree.NEWCLASS: |
duke@1 | 2966 | case JCTree.ERRONEOUS: |
duke@1 | 2967 | return t; |
duke@1 | 2968 | default: |
duke@1 | 2969 | log.error(t.pos, "not.stmt"); |
duke@1 | 2970 | return F.at(t.pos).Erroneous(List.<JCTree>of(t)); |
duke@1 | 2971 | } |
duke@1 | 2972 | } |
duke@1 | 2973 | |
duke@1 | 2974 | /** Return precedence of operator represented by token, |
duke@1 | 2975 | * -1 if token is not a binary operator. @see TreeInfo.opPrec |
duke@1 | 2976 | */ |
duke@1 | 2977 | static int prec(Token token) { |
duke@1 | 2978 | int oc = optag(token); |
duke@1 | 2979 | return (oc >= 0) ? TreeInfo.opPrec(oc) : -1; |
duke@1 | 2980 | } |
duke@1 | 2981 | |
duke@1 | 2982 | /** Return operation tag of binary operator represented by token, |
duke@1 | 2983 | * -1 if token is not a binary operator. |
duke@1 | 2984 | */ |
duke@1 | 2985 | static int optag(Token token) { |
duke@1 | 2986 | switch (token) { |
duke@1 | 2987 | case BARBAR: |
duke@1 | 2988 | return JCTree.OR; |
duke@1 | 2989 | case AMPAMP: |
duke@1 | 2990 | return JCTree.AND; |
duke@1 | 2991 | case BAR: |
duke@1 | 2992 | return JCTree.BITOR; |
duke@1 | 2993 | case BAREQ: |
duke@1 | 2994 | return JCTree.BITOR_ASG; |
duke@1 | 2995 | case CARET: |
duke@1 | 2996 | return JCTree.BITXOR; |
duke@1 | 2997 | case CARETEQ: |
duke@1 | 2998 | return JCTree.BITXOR_ASG; |
duke@1 | 2999 | case AMP: |
duke@1 | 3000 | return JCTree.BITAND; |
duke@1 | 3001 | case AMPEQ: |
duke@1 | 3002 | return JCTree.BITAND_ASG; |
duke@1 | 3003 | case EQEQ: |
duke@1 | 3004 | return JCTree.EQ; |
duke@1 | 3005 | case BANGEQ: |
duke@1 | 3006 | return JCTree.NE; |
duke@1 | 3007 | case LT: |
duke@1 | 3008 | return JCTree.LT; |
duke@1 | 3009 | case GT: |
duke@1 | 3010 | return JCTree.GT; |
duke@1 | 3011 | case LTEQ: |
duke@1 | 3012 | return JCTree.LE; |
duke@1 | 3013 | case GTEQ: |
duke@1 | 3014 | return JCTree.GE; |
duke@1 | 3015 | case LTLT: |
duke@1 | 3016 | return JCTree.SL; |
duke@1 | 3017 | case LTLTEQ: |
duke@1 | 3018 | return JCTree.SL_ASG; |
duke@1 | 3019 | case GTGT: |
duke@1 | 3020 | return JCTree.SR; |
duke@1 | 3021 | case GTGTEQ: |
duke@1 | 3022 | return JCTree.SR_ASG; |
duke@1 | 3023 | case GTGTGT: |
duke@1 | 3024 | return JCTree.USR; |
duke@1 | 3025 | case GTGTGTEQ: |
duke@1 | 3026 | return JCTree.USR_ASG; |
duke@1 | 3027 | case PLUS: |
duke@1 | 3028 | return JCTree.PLUS; |
duke@1 | 3029 | case PLUSEQ: |
duke@1 | 3030 | return JCTree.PLUS_ASG; |
duke@1 | 3031 | case SUB: |
duke@1 | 3032 | return JCTree.MINUS; |
duke@1 | 3033 | case SUBEQ: |
duke@1 | 3034 | return JCTree.MINUS_ASG; |
duke@1 | 3035 | case STAR: |
duke@1 | 3036 | return JCTree.MUL; |
duke@1 | 3037 | case STAREQ: |
duke@1 | 3038 | return JCTree.MUL_ASG; |
duke@1 | 3039 | case SLASH: |
duke@1 | 3040 | return JCTree.DIV; |
duke@1 | 3041 | case SLASHEQ: |
duke@1 | 3042 | return JCTree.DIV_ASG; |
duke@1 | 3043 | case PERCENT: |
duke@1 | 3044 | return JCTree.MOD; |
duke@1 | 3045 | case PERCENTEQ: |
duke@1 | 3046 | return JCTree.MOD_ASG; |
duke@1 | 3047 | case INSTANCEOF: |
duke@1 | 3048 | return JCTree.TYPETEST; |
duke@1 | 3049 | default: |
duke@1 | 3050 | return -1; |
duke@1 | 3051 | } |
duke@1 | 3052 | } |
duke@1 | 3053 | |
duke@1 | 3054 | /** Return operation tag of unary operator represented by token, |
duke@1 | 3055 | * -1 if token is not a binary operator. |
duke@1 | 3056 | */ |
duke@1 | 3057 | static int unoptag(Token token) { |
duke@1 | 3058 | switch (token) { |
duke@1 | 3059 | case PLUS: |
duke@1 | 3060 | return JCTree.POS; |
duke@1 | 3061 | case SUB: |
duke@1 | 3062 | return JCTree.NEG; |
duke@1 | 3063 | case BANG: |
duke@1 | 3064 | return JCTree.NOT; |
duke@1 | 3065 | case TILDE: |
duke@1 | 3066 | return JCTree.COMPL; |
duke@1 | 3067 | case PLUSPLUS: |
duke@1 | 3068 | return JCTree.PREINC; |
duke@1 | 3069 | case SUBSUB: |
duke@1 | 3070 | return JCTree.PREDEC; |
duke@1 | 3071 | default: |
duke@1 | 3072 | return -1; |
duke@1 | 3073 | } |
duke@1 | 3074 | } |
duke@1 | 3075 | |
duke@1 | 3076 | /** Return type tag of basic type represented by token, |
duke@1 | 3077 | * -1 if token is not a basic type identifier. |
duke@1 | 3078 | */ |
duke@1 | 3079 | static int typetag(Token token) { |
duke@1 | 3080 | switch (token) { |
duke@1 | 3081 | case BYTE: |
duke@1 | 3082 | return TypeTags.BYTE; |
duke@1 | 3083 | case CHAR: |
duke@1 | 3084 | return TypeTags.CHAR; |
duke@1 | 3085 | case SHORT: |
duke@1 | 3086 | return TypeTags.SHORT; |
duke@1 | 3087 | case INT: |
duke@1 | 3088 | return TypeTags.INT; |
duke@1 | 3089 | case LONG: |
duke@1 | 3090 | return TypeTags.LONG; |
duke@1 | 3091 | case FLOAT: |
duke@1 | 3092 | return TypeTags.FLOAT; |
duke@1 | 3093 | case DOUBLE: |
duke@1 | 3094 | return TypeTags.DOUBLE; |
duke@1 | 3095 | case BOOLEAN: |
duke@1 | 3096 | return TypeTags.BOOLEAN; |
duke@1 | 3097 | default: |
duke@1 | 3098 | return -1; |
duke@1 | 3099 | } |
duke@1 | 3100 | } |
duke@1 | 3101 | |
duke@1 | 3102 | void checkGenerics() { |
duke@1 | 3103 | if (!allowGenerics) { |
duke@1 | 3104 | log.error(S.pos(), "generics.not.supported.in.source", source.name); |
duke@1 | 3105 | allowGenerics = true; |
duke@1 | 3106 | } |
duke@1 | 3107 | } |
duke@1 | 3108 | void checkVarargs() { |
duke@1 | 3109 | if (!allowVarargs) { |
duke@1 | 3110 | log.error(S.pos(), "varargs.not.supported.in.source", source.name); |
duke@1 | 3111 | allowVarargs = true; |
duke@1 | 3112 | } |
duke@1 | 3113 | } |
duke@1 | 3114 | void checkForeach() { |
duke@1 | 3115 | if (!allowForeach) { |
duke@1 | 3116 | log.error(S.pos(), "foreach.not.supported.in.source", source.name); |
duke@1 | 3117 | allowForeach = true; |
duke@1 | 3118 | } |
duke@1 | 3119 | } |
duke@1 | 3120 | void checkStaticImports() { |
duke@1 | 3121 | if (!allowStaticImport) { |
duke@1 | 3122 | log.error(S.pos(), "static.import.not.supported.in.source", source.name); |
duke@1 | 3123 | allowStaticImport = true; |
duke@1 | 3124 | } |
duke@1 | 3125 | } |
duke@1 | 3126 | void checkAnnotations() { |
duke@1 | 3127 | if (!allowAnnotations) { |
duke@1 | 3128 | log.error(S.pos(), "annotations.not.supported.in.source", source.name); |
duke@1 | 3129 | allowAnnotations = true; |
duke@1 | 3130 | } |
duke@1 | 3131 | } |
jjg@308 | 3132 | void checkTypeAnnotations() { |
jjg@308 | 3133 | if (!allowTypeAnnotations) { |
jjg@308 | 3134 | log.error(S.pos(), "type.annotations.not.supported.in.source", source.name); |
jjg@308 | 3135 | allowTypeAnnotations = true; |
jjg@308 | 3136 | } |
jjg@308 | 3137 | } |
duke@1 | 3138 | } |