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Code Issues Wiki Activity

Fixed Bug 84374 - [Lengths] bad lengths for ICPPASTNewExpression

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This commit is contained in:
John Camelon 2005-02-07 21:57:38 +00:00
parent 1362e388a1
commit 2edfe202ea
2 changed files with 154 additions and 112 deletions
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18
core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/DOMLocationTests.java
View file

@ -40,6 +40,7 @@ import org.eclipse.cdt.core.dom.ast.IASTTypeId;
import org.eclipse.cdt.core.dom.ast.IASTUnaryExpression;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTCompositeTypeSpecifier;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTNamedTypeSpecifier;
import org.eclipse.cdt.core.dom.ast.cpp.ICPPASTNewExpression;
import org.eclipse.cdt.core.parser.ParserLanguage;
import org.eclipse.cdt.internal.core.parser.ParserException;
@ -292,6 +293,20 @@ public class DOMLocationTests extends AST2BaseTest {
}
}
public void testBug84374() throws Exception
{
String code = "class P1 { public: int x; };\nclass P2 { public: int x; };\nclass B : public P1, public P2 {};\nvoid main() {\nB * b = new B();\n}"; //$NON-NLS-1$
IASTTranslationUnit tu = parse( code, ParserLanguage.CPP );
IASTFunctionDefinition main = (IASTFunctionDefinition) tu.getDeclarations()[3];
IASTCompoundStatement statement = (IASTCompoundStatement) main.getBody();
IASTDeclarationStatement decl = (IASTDeclarationStatement) statement.getStatements()[0];
IASTSimpleDeclaration b = (IASTSimpleDeclaration) decl.getDeclaration();
IASTInitializerExpression initializerExpression = (IASTInitializerExpression) b.getDeclarators()[0].getInitializer();
assertSoleLocation( initializerExpression, code.indexOf( "new B()"), "new B()".length() ); //$NON-NLS-1$ //$NON-NLS-2$
ICPPASTNewExpression newExpression = (ICPPASTNewExpression) initializerExpression.getExpression();
assertSoleLocation( newExpression, code.indexOf( "new B()"), "new B()".length() ); //$NON-NLS-1$ //$NON-NLS-2$
}
public void testBug83737() throws Exception {
String code = "void f() { if( a == 0 ) g( a ); else if( a < 0 ) g( a >> 1 ); else if( a > 0 ) g( *(&a + 2) ); }"; //$NON-NLS-1$
for (ParserLanguage p = ParserLanguage.C; p != null; p = (p == ParserLanguage.C) ? ParserLanguage.CPP
@ -311,8 +326,7 @@ public class DOMLocationTests extends AST2BaseTest {
assertSoleLocation( first_if, first_if_start, total_if_length );
assertSoleLocation( second_if, second_if_start, total_if_end - second_if_start );
assertSoleLocation( third_if, third_if_start, total_if_end - third_if_start );
}
}
}
}

248
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java
View file

@ -41,7 +41,6 @@ import org.eclipse.cdt.core.dom.ast.IASTFieldDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTFieldReference;
import org.eclipse.cdt.core.dom.ast.IASTForStatement;
import org.eclipse.cdt.core.dom.ast.IASTFunctionCallExpression;
import org.eclipse.cdt.core.dom.ast.IASTStandardFunctionDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTFunctionDefinition;
import org.eclipse.cdt.core.dom.ast.IASTGotoStatement;
import org.eclipse.cdt.core.dom.ast.IASTIdExpression;
@ -67,6 +66,7 @@ import org.eclipse.cdt.core.dom.ast.IASTProblemTypeId;
import org.eclipse.cdt.core.dom.ast.IASTReturnStatement;
import org.eclipse.cdt.core.dom.ast.IASTSimpleDeclSpecifier;
import org.eclipse.cdt.core.dom.ast.IASTSimpleDeclaration;
import org.eclipse.cdt.core.dom.ast.IASTStandardFunctionDeclarator;
import org.eclipse.cdt.core.dom.ast.IASTStatement;
import org.eclipse.cdt.core.dom.ast.IASTSwitchStatement;
import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
@ -548,8 +548,9 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
if (nameDuple != null) {
IASTName name = createName(nameDuple);
ICPPASTPointerToMember p2m = createPointerToMember(isRestrict);
((ASTNode) p2m).setOffsetAndLength(nameDuple.getFirstToken().getOffset(), last
.getEndOffset() - nameDuple.getFirstToken().getOffset() );
((ASTNode) p2m).setOffsetAndLength(nameDuple.getFirstToken()
.getOffset(), last.getEndOffset()
- nameDuple.getFirstToken().getOffset());
p2m.setConst(isConst);
p2m.setVolatile(isVolatile);
p2m.setName(name);
@ -894,7 +895,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
IASTDeclarator declarator = null;
try {
declSpecifier = declSpecifierSeq(false, false);
declSpecifier = declSpecifierSeq(true, true);
declarator = declarator(SimpleDeclarationStrategy.TRY_CONSTRUCTOR,
true);
} catch (BacktrackException bt) {
@ -910,10 +911,18 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
declarator)
- startingOffset);
}
if (declSpecifier instanceof IASTSimpleDeclSpecifier
&& ((ASTNode) declSpecifier).getLength() == 0) {
backup(mark);
throwBacktrack(startingOffset, figureEndOffset(declSpecifier,
declarator)
- startingOffset);
}
IASTTypeId result = createTypeId();
((ASTNode) result).setOffsetAndLength(startingOffset, figureEndOffset(
declSpecifier, declarator) - startingOffset);
declSpecifier, declarator)
- startingOffset);
result.setDeclSpecifier(declSpecifier);
declSpecifier.setParent(result);
@ -986,7 +995,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
*
* newexpression: ::? new newplacement? newtypeid newinitializer? ::? new
* newplacement? ( typeid ) newinitializer? newplacement: ( expressionlist )
* newtypeid: typespecifierseq newdeclarator? newdeclarator: ptroperator
* newtypeid: typespecifierseq newdeclarator? newdeclarator: ptroperator *
* newdeclarator? | directnewdeclarator directnewdeclarator: [ expression ]
* directnewdeclarator [ constantexpression ] newinitializer: (
* expressionlist? )
@ -1012,48 +1021,53 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
IASTExpression newInitializerExpressions = null;
boolean isNewTypeId = false;
if (LT(1) == IToken.tLPAREN) {
lastOffset = consume(IToken.tLPAREN).getEndOffset();
if (templateIdScopes.size() > 0) {
templateIdScopes.push(IToken.tLPAREN);
}
try {
// Try to consume placement list
// Note: since expressionList and expression are the same...
backtrackMarker = mark();
newPlacementExpressions = expression();
lastOffset = consume(IToken.tRPAREN).getEndOffset();
if (LT(1) == IToken.tLBRACKET) {
master_new_loop: for (int i = 0; i < 2; ++i) {
IToken loopMark = LA(1);
if (LT(1) == IToken.tLPAREN) {
lastOffset = consume(IToken.tLPAREN).getEndOffset();
if (templateIdScopes.size() > 0) {
templateIdScopes.push(IToken.tLPAREN);
}
try {
// Try to consume placement list
if (i == 0) {
backtrackMarker = mark();
newPlacementExpressions = expression();
lastOffset = consume(IToken.tRPAREN).getEndOffset();
if (LT(1) == IToken.tLBRACKET) {
backup(backtrackMarker);
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
} //pop 1st Parent
placementParseFailure = true;
throwBacktrack(backtrackMarker.getOffset(),
backtrackMarker.getLength());
} else
placementParseFailure = false;
}
if (LT(1) == IToken.tLPAREN) {
beforeSecondParen = mark();
lastOffset = consume(IToken.tLPAREN).getEndOffset();
if (templateIdScopes.size() > 0) {
templateIdScopes.push(IToken.tLPAREN);
} //push 2nd Paren
typeIdInParen = true;
}
} catch (BacktrackException e) {
backup(backtrackMarker);
}
if (placementParseFailure) {
// CASE: new (typeid-not-looking-as-placement) ...
// the first expression in () is not a placement
// - then it has to be typeId
typeId = typeId(true);
lastOffset = consume(IToken.tRPAREN).getEndOffset();
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
} //pop 1st Parent
placementParseFailure = true;
throwBacktrack(backtrackMarker.getOffset(), backtrackMarker
.getLength());
} else
placementParseFailure = false;
if (LT(1) == IToken.tLPAREN) {
beforeSecondParen = mark();
lastOffset = consume(IToken.tLPAREN).getEndOffset();
if (templateIdScopes.size() > 0) {
templateIdScopes.push(IToken.tLPAREN);
} //push 2nd Paren
typeIdInParen = true;
} //pop 1st Paren
break master_new_loop;
}
} catch (BacktrackException e) {
backup(backtrackMarker);
}
if (placementParseFailure) {
// CASE: new (typeid-not-looking-as-placement) ...
// the first expression in () is not a placement
// - then it has to be typeId
typeId = typeId(true);
lastOffset = consume(IToken.tRPAREN).getEndOffset();
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
} //pop 1st Paren
} else {
if (!typeIdInParen) {
if (LT(1) == IToken.tLBRACKET) {
// CASE: new (typeid-looking-as-placement) [expr]...
@ -1072,12 +1086,13 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
backtrackMarker = mark();
typeId = typeId(true);
lastOffset = calculateEndOffset(typeId);
break master_new_loop;
} catch (BacktrackException e) {
// Hmmm, so it wasn't typeId after all... Then it is
// CASE: new (typeid-looking-as-placement)
backup(backtrackMarker);
// TODO fix this
return null;
backup(loopMark);
placementParseFailure = true;
continue master_new_loop;
}
}
} else {
@ -1125,6 +1140,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
}
return result;
}
break master_new_loop;
} catch (BacktrackException e) {
// CASE: new
// (typeid-looking-as-placement)(initializer-not-looking-as-typeid)
@ -1135,21 +1151,27 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
}//pop that 2nd paren
}
}
} else {
// CASE: new typeid ...
// new parameters do not start with '('
// i.e it has to be a plain typeId
typeId = typeId(true);
lastOffset = calculateEndOffset(typeId);
isNewTypeId = true;
break master_new_loop;
}
} else {
// CASE: new typeid ...
// new parameters do not start with '('
// i.e it has to be a plain typeId
typeId = typeId(true);
isNewTypeId = true;
}
ICPPASTNewExpression result = createNewExpression();
((ASTNode) result).setOffset(startingOffset);
((ASTNode) result).setOffsetAndLength(startingOffset, lastOffset
- startingOffset);
result.setIsGlobal(isGlobal);
result.setIsNewTypeId(isNewTypeId);
result.setTypeId(typeId);
typeId.setParent(result);
typeId.setPropertyInParent(ICPPASTNewExpression.TYPE_ID);
if (typeId != null) {
result.setIsNewTypeId(isNewTypeId);
result.setTypeId(typeId);
typeId.setParent(result);
typeId.setPropertyInParent(ICPPASTNewExpression.TYPE_ID);
}
if (newPlacementExpressions != null) {
result.setNewPlacement(newPlacementExpressions);
newPlacementExpressions.setParent(result);
@ -1159,14 +1181,14 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
while (LT(1) == IToken.tLBRACKET) {
// array new
consume();
lastOffset = consume().getEndOffset();
if (templateIdScopes.size() > 0) {
templateIdScopes.push(IToken.tLBRACKET);
}
IASTExpression a = assignmentExpression();
consume(IToken.tRBRACKET);
lastOffset = consume(IToken.tRBRACKET).getEndOffset();
result.addNewTypeIdArrayExpression(a);
a.setParent(result);
a
@ -1178,7 +1200,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
}
// newinitializer
if (LT(1) == IToken.tLPAREN) {
consume(IToken.tLPAREN);
lastOffset = consume(IToken.tLPAREN).getEndOffset();
if (templateIdScopes.size() > 0) {
templateIdScopes.push(IToken.tLPAREN);
}
@ -1187,19 +1209,22 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
// empty new Initializer
//if the next token is the RPAREN, then we have an Empty expression
// in our list.
newInitializerExpressions = expression();
if (LT(1) != IToken.tRPAREN)
newInitializerExpressions = expression();
int lo = consume(IToken.tRPAREN).getEndOffset();
lastOffset = consume(IToken.tRPAREN).getEndOffset();
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
}
result.setNewInitializer(newInitializerExpressions);
newInitializerExpressions.setParent(result);
newInitializerExpressions
.setPropertyInParent(ICPPASTNewExpression.NEW_INITIALIZER);
((CPPASTNode) result).setLength(lo - startingOffset);
}
if (newInitializerExpressions != null) {
result.setNewInitializer(newInitializerExpressions);
newInitializerExpressions.setParent(result);
newInitializerExpressions
.setPropertyInParent(ICPPASTNewExpression.NEW_INITIALIZER);
}
}
((CPPASTNode) result).setLength(lastOffset - startingOffset);
return result;
}
@ -1679,7 +1704,9 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
}
return buildUnaryExpression( IASTUnaryExpression.op_bracketedPrimary, lhs, t.getOffset(), finalOffset );
return buildUnaryExpression(
IASTUnaryExpression.op_bracketedPrimary, lhs, t.getOffset(),
finalOffset);
case IToken.tIDENTIFIER:
case IToken.tCOLONCOLON:
case IToken.t_operator:
@ -2932,7 +2959,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
IASTEnumerationSpecifier enumSpec = null;
IASTExpression typeofExpression = null;
int startOffset = firstToken.getOffset();
declSpecifiers: for (;;) {
switch (LT(1)) {
case IToken.t_inline:
@ -3141,7 +3168,8 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
elabSpec.setStorageClass(storageClass);
elabSpec.setVirtual(isVirtual);
elabSpec.setExplicit(isExplicit);
((CPPASTNode)elabSpec).setOffsetAndLength( startOffset, calculateEndOffset(elabSpec)- startOffset );
((CPPASTNode) elabSpec).setOffsetAndLength(startOffset,
calculateEndOffset(elabSpec) - startOffset);
return elabSpec;
}
if (enumSpec != null) {
@ -3154,7 +3182,8 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
((ICPPASTDeclSpecifier) enumSpec).setExplicit(isExplicit);
enumSpec.setInline(isInline);
enumSpec.setStorageClass(storageClass);
((CPPASTNode)enumSpec).setOffsetAndLength( startOffset, calculateEndOffset(enumSpec) - startOffset );
((CPPASTNode) enumSpec).setOffsetAndLength(startOffset,
calculateEndOffset(enumSpec) - startOffset);
return (ICPPASTDeclSpecifier) enumSpec;
}
if (classSpec != null) {
@ -3167,7 +3196,8 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
classSpec.setStorageClass(storageClass);
classSpec.setVirtual(isVirtual);
classSpec.setExplicit(isExplicit);
((CPPASTNode)classSpec).setOffsetAndLength( startOffset, calculateEndOffset(classSpec) - startOffset );
((CPPASTNode) classSpec).setOffsetAndLength(startOffset,
calculateEndOffset(classSpec) - startOffset);
return classSpec;
}
if (duple != null) {
@ -3187,7 +3217,9 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
nameSpec.setStorageClass(storageClass);
nameSpec.setVirtual(isVirtual);
nameSpec.setExplicit(isExplicit);
((CPPASTNode)nameSpec).setOffsetAndLength( startOffset, last.getEndOffset() - startOffset );
((CPPASTNode) nameSpec).setOffsetAndLength(startOffset, last
.getEndOffset()
- startOffset);
return nameSpec;
}
ICPPASTSimpleDeclSpecifier simpleDeclSpec = null;
@ -3325,7 +3357,8 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
d.setInitializer(initializer);
initializer.setParent(d);
initializer.setPropertyInParent(IASTDeclarator.INITIALIZER);
((ASTNode)d).setLength( calculateEndOffset( initializer ) - ((ASTNode)d).getOffset() );
((ASTNode) d).setLength(calculateEndOffset(initializer)
- ((ASTNode) d).getOffset());
}
return d;
@ -3529,7 +3562,8 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
}
}
if ((!LA(2).looksLikeExpression()
&& strategy != SimpleDeclarationStrategy.TRY_VARIABLE && !failed)) {
&& strategy != SimpleDeclarationStrategy.TRY_VARIABLE
&& !failed && !forTypeID)) {
// parameterDeclarationClause
isFunction = true;
// TODO need to create a temporary scope object here
@ -3911,7 +3945,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
IASTNode n = mostRelevantScopeNode;
mostRelevantScopeNode = astClassSpecifier;
astClassSpecifier.setParent( n );
astClassSpecifier.setParent(n);
try {
memberDeclarationLoop: while (LT(1) != IToken.tRBRACE) {
@ -4025,43 +4059,35 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
baseSpecifierLoop: for (;;) {
switch (LT(1)) {
case IToken.t_virtual:
if (firstToken == null)
{
if (firstToken == null) {
firstToken = consume(IToken.t_virtual);
last = firstToken;
}
else
} else
last = consume(IToken.t_virtual);
isVirtual = true;
break;
case IToken.t_public:
visibility = ICPPASTCompositeTypeSpecifier.ICPPASTBaseSpecifier.v_public;
if (firstToken == null)
{
if (firstToken == null) {
firstToken = consume();
last = firstToken;
}
else
} else
last = consume();
break;
case IToken.t_protected:
visibility = ICPPASTCompositeTypeSpecifier.ICPPASTBaseSpecifier.v_protected;
if (firstToken == null)
{
if (firstToken == null) {
firstToken = consume();
last = firstToken;
}
else
} else
last = consume();
break;
case IToken.t_private:
visibility = ICPPASTCompositeTypeSpecifier.ICPPASTBaseSpecifier.v_private;
if (firstToken == null)
{
if (firstToken == null) {
firstToken = consume();
last = firstToken;
}
else
} else
last = consume();
break;
case IToken.tCOLONCOLON:
@ -4069,7 +4095,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
//to get templates right we need to use the class as the scope
ITokenDuple d = name();
name = createName(d);
if( firstToken == null )
if (firstToken == null)
firstToken = d.getFirstToken();
last = d.getLastToken();
break;
@ -4105,10 +4131,9 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
name = createName();
baseSpec = createBaseSpecifier();
if (firstToken != null)
((ASTNode) baseSpec)
.setOffsetAndLength(firstToken.getOffset(), last
.getEndOffset()
- firstToken.getOffset());
((ASTNode) baseSpec).setOffsetAndLength(firstToken
.getOffset(), last.getEndOffset()
- firstToken.getOffset());
baseSpec.setVirtual(isVirtual);
baseSpec.setVisibility(visibility);
baseSpec.setName(name);
@ -4428,7 +4453,7 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
*/
protected IASTName createName(IToken token) {
CPPASTName n = new CPPASTName(token.getCharImage());
n.setOffsetAndLength( token.getOffset(), token.getLength() );
n.setOffsetAndLength(token.getOffset(), token.getLength());
return n;
}
@ -4727,20 +4752,23 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
((ASTNode) result).setLength(length);
return result;
}
/* (non-Javadoc)
* @see org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser#resolveOtherAmbiguitiesAsDeclaration(org.eclipse.cdt.core.dom.ast.IASTDeclarationStatement, org.eclipse.cdt.core.dom.ast.IASTExpressionStatement)
/*
* (non-Javadoc)
*
* @see org.eclipse.cdt.internal.core.dom.parser.AbstractGNUSourceCodeParser#resolveOtherAmbiguitiesAsDeclaration(org.eclipse.cdt.core.dom.ast.IASTDeclarationStatement,
* org.eclipse.cdt.core.dom.ast.IASTExpressionStatement)
*/
protected boolean resolveOtherAmbiguitiesAsDeclaration(
IASTDeclarationStatement ds,
IASTExpressionStatement expressionStatement) {
if( expressionStatement.getExpression() instanceof IASTArraySubscriptExpression )
{
IASTArraySubscriptExpression arraySub = (IASTArraySubscriptExpression) expressionStatement.getExpression();
if( ! ( arraySub.getArrayExpression() instanceof IASTIdExpression ||
arraySub.getArrayExpression() instanceof IASTArraySubscriptExpression ||
arraySub.getArrayExpression() instanceof IASTFieldReference ))
return true;
if (expressionStatement.getExpression() instanceof IASTArraySubscriptExpression) {
IASTArraySubscriptExpression arraySub = (IASTArraySubscriptExpression) expressionStatement
.getExpression();
if (!(arraySub.getArrayExpression() instanceof IASTIdExpression
|| arraySub.getArrayExpression() instanceof IASTArraySubscriptExpression || arraySub
.getArrayExpression() instanceof IASTFieldReference))
return true;
}
return super
.resolveOtherAmbiguitiesAsDeclaration(ds, expressionStatement);