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Fix for a bogus c++-syntax-error and 2 exceptions, bug 223777.

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This commit is contained in:
Markus Schorn 2008-03-26 11:35:43 +00:00
parent 064d4429ba
commit 9f5748de37
4 changed files with 165 additions and 117 deletions
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11
core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/AST2CPPTests.java
View file

@ -5838,4 +5838,15 @@ public class AST2CPPTests extends AST2BaseTest {
assertTrue(td instanceof ITypedef);
assertTrue(((ITypedef) td).getType() instanceof ICPPBasicType);
}
// void func() {
// int a, b;
// a < b || (a==b && a < b);
// if (a > b) {
// }
// }
public void testResettingTemplateIdScopesStack_Bug223777() throws Exception{
final String code = getContents(1)[0].toString();
parseAndCheckBindings(code);
}
}

5
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPVisitor.java
View file

@ -835,13 +835,16 @@ public class CPPVisitor {
IScope scope= getContainingScopeOrNull(name);
if (scope == null) {
return new CPPScope.CPPScopeProblem(name, IProblemBinding.SEMANTIC_BAD_SCOPE,
name.toCharArray());
name == null ? CharArrayUtils.EMPTY : name.toCharArray());
}
return scope;
}
private static IScope getContainingScopeOrNull(IASTName name) {
if (name == null) {
return null;
}
IASTNode parent = name.getParent();
try {
if (parent instanceof ICPPASTTemplateId) {

261
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/GNUCPPSourceParser.java
View file

@ -282,45 +282,49 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
boolean completedArg = false;
boolean failed = false;
final int initialTemplateIdScopesSize= templateIdScopes.size();
templateIdScopes.push(IToken.tLT);
try {
while (LT(1) != IToken.tGT && LT(1) != IToken.tEOC) {
completedArg = false;
while (LT(1) != IToken.tGT && LT(1) != IToken.tEOC) {
completedArg = false;
IToken mark = mark();
IToken mark = mark();
IASTTypeId typeId = typeId(false);
if (typeId == null) {
backup(mark);
} else if (LT(1) != IToken.tCOMMA && LT(1) != IToken.tGT && LT(1) != IToken.tEOC){
//didn't consume the whole argument, probably confused typeId with idExpression
//backup and try the assignmentExpression
backup(mark);
} else {
list.add(typeId);
completedArg = true;
}
if (!completedArg) {
try {
IASTExpression expression = assignmentExpression();
list.add(expression);
completedArg = true;
} catch (BacktrackException e) {
backup(mark);
}
}
IASTTypeId typeId = typeId(false);
if (typeId == null) {
backup(mark);
} else if (LT(1) != IToken.tCOMMA && LT(1) != IToken.tGT && LT(1) != IToken.tEOC){
//didn't consume the whole argument, probably confused typeId with idExpression
//backup and try the assignmentExpression
backup(mark);
} else {
list.add(typeId);
completedArg = true;
}
if (!completedArg) {
try {
IASTExpression expression = assignmentExpression();
list.add(expression);
completedArg = true;
} catch (BacktrackException e) {
backup(mark);
}
}
if (LT(1) == IToken.tCOMMA) {
consume();
} else if (LT(1) != IToken.tGT && LT(1) != IToken.tEOC) {
failed = true;
endOffset = LA(1).getEndOffset();
break;
}
if (LT(1) == IToken.tCOMMA) {
consume();
} else if (LT(1) != IToken.tGT && LT(1) != IToken.tEOC) {
failed = true;
endOffset = LA(1).getEndOffset();
break;
}
}
}
finally {
do {
templateIdScopes.pop();
} while (templateIdScopes.size() > initialTemplateIdScopesSize);
}
templateIdScopes.pop();
if (failed)
throwBacktrack(startingOffset, endOffset - startingOffset);
@ -407,7 +411,8 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
}
protected IASTExpression conditionalExpression() throws BacktrackException, EndOfFileException {
@Override
protected IASTExpression conditionalExpression() throws BacktrackException, EndOfFileException {
final IASTExpression expr= super.conditionalExpression();
if (templateArgListCount > 0) {
// bug 104706, don't allow usage of logical operators in template argument lists.
@ -912,47 +917,52 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
IToken mark = mark();
consume();
if (templateIdScopes.size() > 0)
templateIdScopes.push(IToken.tLPAREN);
final int initialSize= templateIdScopes.size();
if (initialSize > 0)
templateIdScopes.push(IToken.tLPAREN);
boolean popped = false;
IASTTypeId typeId = null;
IToken startCastExpression=null;
// If this isn't a type name, then we shouldn't be here
if (!avoidCastExpressionByHeuristics()) {
typeId = typeId(false);
try {
IASTTypeId typeId = null;
IToken startCastExpression=null;
// If this isn't a type name, then we shouldn't be here
if (!avoidCastExpressionByHeuristics()) {
typeId = typeId(false);
}
if (typeId != null && LT(1) == IToken.tRPAREN) {
consume();
startCastExpression=mark();
if (initialSize > 0) {
templateIdScopes.pop();
}
try {
IASTExpression castExpression = castExpression();
mark = null; // clean up mark so that we can garbage collect
return buildTypeIdUnaryExpression(IASTCastExpression.op_cast,
typeId, castExpression, startingOffset,
calculateEndOffset(castExpression));
} catch (BacktrackException b) {
try {
// try a compoundStatementExpression
backup(startCastExpression);
if (LT(1) == IToken.tLPAREN) {
IASTExpression castExpression = compoundStatementExpression();
mark = null; // clean up mark so that we can garbage collect
return buildTypeIdUnaryExpression(IASTCastExpression.op_cast,
typeId, castExpression, startingOffset,
calculateEndOffset(castExpression));
}
} catch (BacktrackException bte2) {}
}
}
backup(mark);
}
finally {
while (templateIdScopes.size() > initialSize) {
templateIdScopes.pop();
}
}
if (typeId != null && LT(1) == IToken.tRPAREN) {
consume();
startCastExpression=mark();
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
popped = true;
}
try {
IASTExpression castExpression = castExpression();
mark = null; // clean up mark so that we can garbage collect
return buildTypeIdUnaryExpression(IASTCastExpression.op_cast,
typeId, castExpression, startingOffset,
calculateEndOffset(castExpression));
} catch (BacktrackException b) {
try {
// try a compoundStatementExpression
backup(startCastExpression);
if (LT(1) == IToken.tLPAREN) {
IASTExpression castExpression = compoundStatementExpression();
mark = null; // clean up mark so that we can garbage collect
return buildTypeIdUnaryExpression(IASTCastExpression.op_cast,
typeId, castExpression, startingOffset,
calculateEndOffset(castExpression));
}
} catch (BacktrackException bte2) {}
}
}
backup(mark);
if (templateIdScopes.size() > 0 && !popped) { templateIdScopes.pop(); }
}
return unaryExpression();
@ -1395,13 +1405,19 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
IASTName name = createName(nestedName);
consume(IToken.tLPAREN);
int lastOffset;
IASTExpression expressionList;
if (templateIdScopes.size() > 0) {
templateIdScopes.push(IToken.tLPAREN);
}
IASTExpression expressionList = expression();
int lastOffset = consume(IToken.tRPAREN).getEndOffset();
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
try {
expressionList = expression();
lastOffset = consume(IToken.tRPAREN).getEndOffset();
}
finally {
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
}
}
ICPPASTTypenameExpression result = createTypenameExpression();
@ -1460,10 +1476,15 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
if (templateIdScopes.size() > 0) {
templateIdScopes.push(IToken.tLPAREN);
}
IASTNode[] n = parseTypeIdOrUnaryExpression(false);
lastOffset = consume(IToken.tRPAREN).getEndOffset();
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
IASTNode[] n;
try {
n= parseTypeIdOrUnaryExpression(false);
lastOffset = consume(IToken.tRPAREN).getEndOffset();
}
finally {
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
}
}
switch (n.length) {
@ -1509,18 +1530,22 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
if (templateIdScopes.size() > 0) {
templateIdScopes.push(IToken.tLBRACKET);
}
secondExpression = expression();
int lastOffset;
switch (LT(1)) {
case IToken.tRBRACKET:
case IToken.tEOC:
lastOffset = consume().getEndOffset();
break;
default:
throw backtrack;
try {
secondExpression = expression();
switch (LT(1)) {
case IToken.tRBRACKET:
case IToken.tEOC:
lastOffset = consume().getEndOffset();
break;
default:
throw backtrack;
}
}
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
finally {
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
}
}
IASTArraySubscriptExpression s = createArraySubscriptExpression();
@ -1537,21 +1562,24 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
if (templateIdScopes.size() > 0) {
templateIdScopes.push(IToken.tLPAREN);
}
if (LT(1) != IToken.tRPAREN)
secondExpression = expression();
else
secondExpression = null;
switch (LT(1)) {
case IToken.tRPAREN:
case IToken.tEOC:
lastOffset = consume().getEndOffset();
break;
default:
throw backtrack;
try {
if (LT(1) != IToken.tRPAREN)
secondExpression = expression();
else
secondExpression = null;
switch (LT(1)) {
case IToken.tRPAREN:
case IToken.tEOC:
lastOffset = consume().getEndOffset();
break;
default:
throw backtrack;
}
}
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
finally {
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
}
}
IASTFunctionCallExpression fce = createFunctionCallExpression();
@ -1743,16 +1771,21 @@ public class GNUCPPSourceParser extends AbstractGNUSourceCodeParser {
if (templateIdScopes.size() > 0) {
templateIdScopes.push(IToken.tLPAREN);
}
IASTExpression lhs = expression();
int finalOffset= 0;
if (LT(1) == IToken.tRPAREN) {
finalOffset = consume().getEndOffset();
} else {
// missing parenthesis, assume it's there and keep going.
finalOffset = LA(1).getOffset();
IASTExpression lhs;
try {
lhs = expression();
if (LT(1) == IToken.tRPAREN) {
finalOffset = consume().getEndOffset();
} else {
// missing parenthesis, assume it's there and keep going.
finalOffset = LA(1).getOffset();
}
}
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
finally {
if (templateIdScopes.size() > 0) {
templateIdScopes.pop();
}
}
return buildUnaryExpression(IASTUnaryExpression.op_bracketedPrimary, lhs, t.getOffset(), finalOffset);
case IToken.tIDENTIFIER:

5
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/pdom/dom/cpp/PDOMCPPFunctionSpecialization.java
View file

@ -89,12 +89,13 @@ class PDOMCPPFunctionSpecialization extends PDOMCPPSpecialization implements ICP
IParameter[] sParams= sFunc.getParameters();
IType[] sParamTypes= sFunc.getType().getParameterTypes();
final int length= Math.min(sParamTypes.length, params.length);
final int length= Math.min(sParams.length, params.length);
db.putInt(record + NUM_PARAMS, length);
for (int i=0; i<length; ++i) {
int typeRecord= i<paramTypes.length && paramTypes[i]!=null ? ((PDOMNode)paramTypes[i]).getRecord() : 0;
//TODO shouldn't need to make new parameter (find old one)
PDOMCPPParameter sParam = new PDOMCPPParameter(pdom, this, sParams[i], sParamTypes[i]);
final IType type= i<sParamTypes.length ? sParamTypes[i] : null;
PDOMCPPParameter sParam = new PDOMCPPParameter(pdom, this, sParams[i], type);
setFirstParameter(new PDOMCPPParameterSpecialization(pdom, this, (ICPPParameter) params[i], sParam, typeRecord));
}
db.putByte(record + ANNOTATION, PDOMCPPAnnotation.encodeAnnotation(function));