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Code Issues Wiki Activity

Name resolution for user-defined function operator, bug 231277.

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This commit is contained in:
Markus Schorn 2008-05-21 12:03:44 +00:00
parent d3afa14bd0
commit 3eb91c4fa0
4 changed files with 95 additions and 53 deletions
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13
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPSemantics.java
View file

@ -2386,6 +2386,19 @@ public class CPPSemantics {
data = new LookupData(astName);
data.forceQualified = true;
data.functionParameters = IASTExpression.EMPTY_EXPRESSION_ARRAY;
} else if (exp instanceof IASTFunctionCallExpression) {
astName.setName(OverloadableOperator.PAREN.toCharArray());
data = new LookupData(astName);
data.forceQualified = true;
final IASTExpression paramExpression = ((IASTFunctionCallExpression)exp).getParameterExpression();
if (paramExpression == null) {
data.functionParameters= IASTExpression.EMPTY_EXPRESSION_ARRAY;
}
else if (paramExpression instanceof IASTExpressionList) {
data.functionParameters= ((IASTExpressionList) paramExpression).getExpressions();
} else {
data.functionParameters = new IASTExpression[] {paramExpression};
}
} else {
return null;
}

7
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/CPPVisitor.java
View file

@ -1864,6 +1864,13 @@ public class CPPVisitor {
if (ftype != null)
return ftype.getReturnType();
}
t= getUltimateTypeUptoPointers(t);
if (t instanceof ICPPClassType) {
ICPPFunction op = CPPSemantics.findOperator(expression, (ICPPClassType) t);
if (op != null) {
return op.getType().getReturnType();
}
}
} catch(DOMException e) {
return e.getProblem();
}

119
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/semantics/LookupData.java
View file

@ -297,60 +297,73 @@ class LookupData {
* an IType[] of function arguments, including the implied object argument
*/
public IType getImpliedObjectArgument() {
IType implied = null;
if (astName != null) {
IASTName tempName = astName;
while (tempName.getParent() instanceof IASTName)
tempName = (IASTName) tempName.getParent();
ASTNodeProperty prop = tempName.getPropertyInParent();
if ((prop == CPPSemantics.STRING_LOOKUP_PROPERTY && tempName.getParent() instanceof ICPPASTUnaryExpression)) {
ICPPASTUnaryExpression unaryExp = (ICPPASTUnaryExpression) tempName.getParent();
IASTExpression oprd= unaryExp.getOperand();
return CPPVisitor.getExpressionType(oprd);
} else if (prop == IASTFieldReference.FIELD_NAME ||
(prop == CPPSemantics.STRING_LOOKUP_PROPERTY && tempName.getParent() instanceof ICPPASTFieldReference)) {
ICPPASTFieldReference fieldRef = (ICPPASTFieldReference) tempName.getParent();
implied = CPPVisitor.getExpressionType(fieldRef.getFieldOwner());
IType ultimateImplied= SemanticUtil.getUltimateTypeUptoPointers(implied);
if (prop != CPPSemantics.STRING_LOOKUP_PROPERTY && fieldRef.isPointerDereference() &&
ultimateImplied instanceof ICPPClassType) {
ICPPFunction operator= CPPSemantics.findOperator(fieldRef, (ICPPClassType) ultimateImplied);
try {
if (operator!=null) {
implied= operator.getType().getReturnType();
}
} catch(DOMException de) {
return de.getProblem();
}
} else if (fieldRef.isPointerDereference() && implied instanceof IPointerType) {
try {
implied = ((IPointerType)implied).getType();
} catch (DOMException e) {
implied = e.getProblem();
}
}
} else if (prop == IASTIdExpression.ID_NAME) {
IScope scope = CPPVisitor.getContainingScope(tempName);
if (scope instanceof ICPPClassScope) {
implied = ((ICPPClassScope)scope).getClassType();
} else {
implied = CPPVisitor.getThisType(scope);
if (implied instanceof IPointerType) {
try {
implied = ((IPointerType)implied).getType();
} catch (DOMException e) {
implied = e.getProblem();
}
}
}
} else if (prop == CPPSemantics.STRING_LOOKUP_PROPERTY && tempName.getParent() instanceof IASTArraySubscriptExpression) {
IASTExpression exp = ((IASTArraySubscriptExpression)tempName.getParent()).getArrayExpression();
implied = CPPVisitor.getExpressionType(exp);
}
if (astName == null)
return null;
IASTName tempName= astName;
IASTNode tempNameParent= tempName.getParent();
while (tempNameParent instanceof IASTName) {
tempName= (IASTName) tempNameParent;
tempNameParent= tempName.getParent();
}
try {
final ASTNodeProperty prop = tempName.getPropertyInParent();
if (prop == CPPSemantics.STRING_LOOKUP_PROPERTY) {
if (tempNameParent instanceof ICPPASTUnaryExpression) {
ICPPASTUnaryExpression unaryExp = (ICPPASTUnaryExpression) tempNameParent;
IASTExpression oprd= unaryExp.getOperand();
return CPPVisitor.getExpressionType(oprd);
}
if (tempNameParent instanceof ICPPASTFieldReference) {
ICPPASTFieldReference fieldRef = (ICPPASTFieldReference) tempNameParent;
IType implied = CPPVisitor.getExpressionType(fieldRef.getFieldOwner());
if (fieldRef.isPointerDereference() && implied instanceof IPointerType) {
return ((IPointerType)implied).getType();
}
return implied;
}
if (tempNameParent instanceof IASTArraySubscriptExpression) {
IASTExpression exp = ((IASTArraySubscriptExpression)tempNameParent).getArrayExpression();
return CPPVisitor.getExpressionType(exp);
}
if (tempNameParent instanceof IASTFunctionCallExpression) {
return CPPVisitor.getExpressionType(((IASTFunctionCallExpression) tempNameParent).getFunctionNameExpression());
}
return null;
}
if (prop == IASTFieldReference.FIELD_NAME) {
ICPPASTFieldReference fieldRef = (ICPPASTFieldReference) tempNameParent;
IType implied = CPPVisitor.getExpressionType(fieldRef.getFieldOwner());
IType ultimateImplied= SemanticUtil.getUltimateTypeUptoPointers(implied);
if (fieldRef.isPointerDereference()) {
if (ultimateImplied instanceof ICPPClassType) {
ICPPFunction operator= CPPSemantics.findOperator(fieldRef, (ICPPClassType) ultimateImplied);
if (operator!=null) {
return operator.getType().getReturnType();
}
} else if (implied instanceof IPointerType) {
return ((IPointerType)implied).getType();
}
}
return implied;
}
if (prop == IASTIdExpression.ID_NAME) {
IScope scope = CPPVisitor.getContainingScope(tempName);
if (scope instanceof ICPPClassScope) {
return ((ICPPClassScope)scope).getClassType();
}
IType implied = CPPVisitor.getThisType(scope);
if (implied instanceof IPointerType) {
return ((IPointerType)implied).getType();
}
return implied;
}
return null;
} catch (DOMException e) {
return e.getProblem();
}
return implied;
}
public boolean forFriendship() {

9
core/org.eclipse.cdt.ui.tests/ui/org/eclipse/cdt/ui/tests/text/contentassist2/CompletionTests.java
View file

@ -103,6 +103,7 @@ public class CompletionTests extends AbstractContentAssistTest {
// C2* m123();
// C2* m12();
// C2* m23();
// C1* operator()(int x);
//
//private:
// void m2private();
@ -1147,4 +1148,12 @@ public class CompletionTests extends AbstractContentAssistTest {
final String[] expected= {"enum0", "enum1", "enum2"};
assertCompletionResults(expected);
}
// void test() {
// C2 c2;
// c2(1)->iam/*cursor*/
public void testUserdefinedCallOperator_Bug231277() throws Exception {
final String[] expected= {"iam1()"};
assertCompletionResults(expected);
}
}