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Bug 406462 - Fixed a regression in parsing of lambda expressions.

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The regression was triggered by the change that introduced support for
designated initializers in C++.

Change-Id: I8e78a8818b8365cce0b878cd4a2c19116b3682d4
This commit is contained in:
Sergey Prigogin 2015-11-19 17:10:21 -08:00
parent f0bd13a754
commit 2af5429bdb
2 changed files with 27 additions and 14 deletions
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12
core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java
View file

@ -8516,6 +8516,18 @@ public class AST2CPPTests extends AST2TestBase {
assertEquals(2, bh.getTranslationUnit().getReferences(foo1).length); assertEquals(2, bh.getTranslationUnit().getReferences(foo1).length);
} }
// template<typename T>
// void f(T p);
//
// class A {
// void m() {
// f([this] (int x) {});
// }
// };
public void testLambdaWithCapture() throws Exception {
parseAndCheckBindings();
}
// typedef int TInt; // typedef int TInt;
// void test() { // void test() {
// int a1= {}, a2{}; // Initializer for declarator // int a1= {}, a2{}; // Initializer for declarator

29
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java
View file

@ -1104,7 +1104,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
stopWithNextOperator= true; stopWithNextOperator= true;
} else if (allowBraceInitializer && LT(1) == IToken.tLBRACE) { } else if (allowBraceInitializer && LT(1) == IToken.tLBRACE) {
// Brace initializer // Brace initializer
expr= bracedInitList(true); expr= bracedInitList(true, false);
lt1= LT(1); lt1= LT(1);
if (lt1 != IToken.tCOLON && lt1 != IToken.tCOMMA) if (lt1 != IToken.tCOLON && lt1 != IToken.tCOMMA)
stopWithNextOperator= true; stopWithNextOperator= true;
@ -1638,7 +1638,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
IASTTypeId t= typeId(DeclarationOptions.TYPEID); IASTTypeId t= typeId(DeclarationOptions.TYPEID);
consume(IToken.tRPAREN); consume(IToken.tRPAREN);
if (LT(1) == IToken.tLBRACE) { if (LT(1) == IToken.tLBRACE) {
IASTInitializer i = bracedInitList(false); IASTInitializer i = bracedInitList(false, false);
firstExpression= getNodeFactory().newTypeIdInitializerExpression(t, i); firstExpression= getNodeFactory().newTypeIdInitializerExpression(t, i);
setRange(firstExpression, offset, calculateEndOffset(i)); setRange(firstExpression, offset, calculateEndOffset(i));
break; break;
@ -1701,7 +1701,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
consume(IToken.tLBRACKET); consume(IToken.tLBRACKET);
IASTInitializerClause expression; IASTInitializerClause expression;
if (LT(1) == IToken.tLBRACE) { if (LT(1) == IToken.tLBRACE) {
expression= bracedInitList(false); expression= bracedInitList(false, false);
} else { } else {
expression= expression(); expression= expression();
} }
@ -3824,7 +3824,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
// braced-init-list // braced-init-list
if (option.fAllowBracedInitializer && lt1 == IToken.tLBRACE) { if (option.fAllowBracedInitializer && lt1 == IToken.tLBRACE) {
return bracedInitList(false); return bracedInitList(false, false);
} }
// ( expression-list ) // ( expression-list )
@ -3844,7 +3844,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
if (lt1 == IToken.tLPAREN) { if (lt1 == IToken.tLPAREN) {
return ctorStyleInitializer(true); return ctorStyleInitializer(true);
} }
return bracedInitList(false); return bracedInitList(false, false);
} }
/** /**
@ -3867,7 +3867,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
} }
private List<ICPPASTInitializerClause> expressionList() throws EndOfFileException, BacktrackException { private List<ICPPASTInitializerClause> expressionList() throws EndOfFileException, BacktrackException {
return initializerList(false); return initializerList(false, false);
} }
/** /**
@ -3879,7 +3879,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
BacktrackException { BacktrackException {
// braced-init-list // braced-init-list
if (LT(1) == IToken.tLBRACE) { if (LT(1) == IToken.tLBRACE) {
return bracedInitList(allowSkipping); return bracedInitList(allowSkipping, true);
} }
// assignment expression // assignment expression
@ -3893,7 +3893,8 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
* { initializer-list ,opt } * { initializer-list ,opt }
* { } * { }
*/ */
private ICPPASTInitializerList bracedInitList(boolean allowSkipping) throws EndOfFileException, BacktrackException { private ICPPASTInitializerList bracedInitList(boolean allowSkipping, boolean allowDesignators)
throws EndOfFileException, BacktrackException {
int offset = consume(IToken.tLBRACE).getOffset(); int offset = consume(IToken.tLBRACE).getOffset();
// { } // { }
@ -3902,7 +3903,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
} }
// { initializer-list ,opt } // { initializer-list ,opt }
List<ICPPASTInitializerClause> initList= initializerList(allowSkipping); List<ICPPASTInitializerClause> initList= initializerList(allowSkipping, allowDesignators);
if (LT(1) == IToken.tCOMMA) if (LT(1) == IToken.tCOMMA)
consume(); consume();
@ -3919,12 +3920,12 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
* initializer-clause ...opt * initializer-clause ...opt
* initializer-list , initializer-clause ...opt * initializer-list , initializer-clause ...opt
*/ */
private List<ICPPASTInitializerClause> initializerList(boolean allowSkipping) throws EndOfFileException, private List<ICPPASTInitializerClause> initializerList(boolean allowSkipping, boolean allowDesignators)
BacktrackException { throws EndOfFileException, BacktrackException {
List<ICPPASTInitializerClause> result= new ArrayList<>(); List<ICPPASTInitializerClause> result= new ArrayList<>();
// List of initializer clauses // List of initializer clauses
loop: while (true) { loop: while (true) {
List<ICPPASTDesignator> designators= designatorList(); List<ICPPASTDesignator> designators= allowDesignators ? designatorList() : null;
if (designators == null) { if (designators == null) {
// Clause may be null, add to initializer anyways, so that the size can be computed. // Clause may be null, add to initializer anyways, so that the size can be computed.
ICPPASTInitializerClause clause = initClause(allowSkipping); ICPPASTInitializerClause clause = initClause(allowSkipping);
@ -5249,7 +5250,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
case IToken.tEOC: case IToken.tEOC:
break; break;
case IToken.tLBRACE: case IToken.tLBRACE:
init= bracedInitList(false); init= bracedInitList(false, false);
break; break;
default: default:
init= expression(); init= expression();
@ -5296,7 +5297,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
IASTInitializerClause expr = null; IASTInitializerClause expr = null;
final int lt1 = LT(1); final int lt1 = LT(1);
if (lt1 == IToken.tLBRACE) { if (lt1 == IToken.tLBRACE) {
expr= bracedInitList(true); expr= bracedInitList(true, false);
} else if (lt1 != IToken.tSEMI) { } else if (lt1 != IToken.tSEMI) {
expr = expression(); expr = expression();
} }