Mercurial > jdk8-mips64-public > langtools / file comparison
comparison: src/share/classes/com/sun/tools/javac/comp/Lower.java
src/share/classes/com/sun/tools/javac/comp/Lower.java
- changeset 359
- 8227961c64d3
- parent 323
- 14b1a8ede954
- child 430
- 8fb9b4be3cb1
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| 358:62073a5becc5 | 359:8227961c64d3 |
|---|---|
| 594 | 594 |
| 595 /************************************************************************** | 595 /************************************************************************** |
| 596 * Symbol manipulation utilities | 596 * Symbol manipulation utilities |
| 597 *************************************************************************/ | 597 *************************************************************************/ |
| 598 | 598 |
| 599 /** Report a conflict between a user symbol and a synthetic symbol. | |
| 600 */ | |
| 601 private void duplicateError(DiagnosticPosition pos, Symbol sym) { | |
| 602 if (!sym.type.isErroneous()) { | |
| 603 log.error(pos, "synthetic.name.conflict", sym, sym.location()); | |
| 604 } | |
| 605 } | |
| 606 | |
| 607 /** Enter a synthetic symbol in a given scope, but complain if there was already one there. | 599 /** Enter a synthetic symbol in a given scope, but complain if there was already one there. |
| 608 * @param pos Position for error reporting. | 600 * @param pos Position for error reporting. |
| 609 * @param sym The symbol. | 601 * @param sym The symbol. |
| 610 * @param s The scope. | 602 * @param s The scope. |
| 611 */ | 603 */ |
| 612 private void enterSynthetic(DiagnosticPosition pos, Symbol sym, Scope s) { | 604 private void enterSynthetic(DiagnosticPosition pos, Symbol sym, Scope s) { |
| 613 if (sym.name != names.error && sym.name != names.empty) { | |
| 614 for (Scope.Entry e = s.lookup(sym.name); e.scope == s; e = e.next()) { | |
| 615 if (sym != e.sym && sym.kind == e.sym.kind) { | |
| 616 // VM allows methods and variables with differing types | |
| 617 if ((sym.kind & (MTH|VAR)) != 0 && | |
| 618 !types.erasure(sym.type).equals(types.erasure(e.sym.type))) | |
| 619 continue; | |
| 620 duplicateError(pos, e.sym); | |
| 621 break; | |
| 622 } | |
| 623 } | |
| 624 } | |
| 625 s.enter(sym); | 605 s.enter(sym); |
| 626 } | 606 } |
| 607 | |
| 608 /** Check whether synthetic symbols generated during lowering conflict | |
| 609 * with user-defined symbols. | |
| 610 * | |
| 611 * @param translatedTrees lowered class trees | |
| 612 */ | |
| 613 void checkConflicts(List<JCTree> translatedTrees) { | |
| 614 for (JCTree t : translatedTrees) { | |
| 615 t.accept(conflictsChecker); | |
| 616 } | |
| 617 } | |
| 618 | |
| 619 JCTree.Visitor conflictsChecker = new TreeScanner() { | |
| 620 | |
| 621 TypeSymbol currentClass; | |
| 622 | |
| 623 @Override | |
| 624 public void visitMethodDef(JCMethodDecl that) { | |
| 625 chk.checkConflicts(that.pos(), that.sym, currentClass); | |
| 626 super.visitMethodDef(that); | |
| 627 } | |
| 628 | |
| 629 @Override | |
| 630 public void visitVarDef(JCVariableDecl that) { | |
| 631 if (that.sym.owner.kind == TYP) { | |
| 632 chk.checkConflicts(that.pos(), that.sym, currentClass); | |
| 633 } | |
| 634 super.visitVarDef(that); | |
| 635 } | |
| 636 | |
| 637 @Override | |
| 638 public void visitClassDef(JCClassDecl that) { | |
| 639 TypeSymbol prevCurrentClass = currentClass; | |
| 640 currentClass = that.sym; | |
| 641 try { | |
| 642 super.visitClassDef(that); | |
| 643 } | |
| 644 finally { | |
| 645 currentClass = prevCurrentClass; | |
| 646 } | |
| 647 } | |
| 648 }; | |
| 627 | 649 |
| 628 /** Look up a synthetic name in a given scope. | 650 /** Look up a synthetic name in a given scope. |
| 629 * @param scope The scope. | 651 * @param scope The scope. |
| 630 * @param name The name. | 652 * @param name The name. |
| 631 */ | 653 */ |
| 3190 translate(cdef, (JCExpression)null); | 3212 translate(cdef, (JCExpression)null); |
| 3191 for (List<Symbol> l = accessed.toList(); l.nonEmpty(); l = l.tail) | 3213 for (List<Symbol> l = accessed.toList(); l.nonEmpty(); l = l.tail) |
| 3192 makeAccessible(l.head); | 3214 makeAccessible(l.head); |
| 3193 for (EnumMapping map : enumSwitchMap.values()) | 3215 for (EnumMapping map : enumSwitchMap.values()) |
| 3194 map.translate(); | 3216 map.translate(); |
| 3217 checkConflicts(this.translated.toList()); | |
| 3195 translated = this.translated; | 3218 translated = this.translated; |
| 3196 } finally { | 3219 } finally { |
| 3197 // note that recursive invocations of this method fail hard | 3220 // note that recursive invocations of this method fail hard |
| 3198 attrEnv = null; | 3221 attrEnv = null; |
| 3199 this.make = null; | 3222 this.make = null; |
