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Fix for 167614, NPE in index-based name resolution.

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This commit is contained in:
Markus Schorn 2006-12-12 14:18:21 +00:00
parent bae61dd6e4
commit 29dfe7938f
1 changed files with 26 additions and 21 deletions
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47
core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPSemantics.java
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@ -836,19 +836,19 @@ public class CPPSemantics {
IType p = ps[i];
p = getUltimateType( p, true );
try {
getAssociatedScopes( p, namespaces, classes );
getAssociatedScopes( p, namespaces, classes, data.astName.getTranslationUnit());
} catch ( DOMException e ) {
}
}
return namespaces;
}
static private void getAssociatedScopes( IType t, ObjectSet namespaces, ObjectSet classes ) throws DOMException{
static private void getAssociatedScopes( IType t, ObjectSet namespaces, ObjectSet classes, IASTTranslationUnit tu) throws DOMException{
//3.4.2-2
if( t instanceof ICPPClassType ){
if( !classes.containsKey( t ) ){
classes.put( t );
IScope scope = getContainingNamespaceScope( (IBinding) t );
IScope scope = getContainingNamespaceScope( (IBinding) t, tu);
if( scope != null )
namespaces.put( scope );
@ -859,35 +859,35 @@ public class CPPSemantics {
continue;
IBinding b = bases[i].getBaseClass();
if( b instanceof IType )
getAssociatedScopes( (IType) b, namespaces, classes );
getAssociatedScopes( (IType) b, namespaces, classes, tu);
}
}
} else if( t instanceof IEnumeration ){
IScope scope = getContainingNamespaceScope( (IBinding) t );
IScope scope = getContainingNamespaceScope( (IBinding) t, tu);
if(scope!=null)
namespaces.put(scope);
} else if( t instanceof IFunctionType ){
IFunctionType ft = (IFunctionType) t;
getAssociatedScopes( getUltimateType( ft.getReturnType(), true ), namespaces, classes );
getAssociatedScopes( getUltimateType( ft.getReturnType(), true ), namespaces, classes, tu);
IType [] ps = ft.getParameterTypes();
for( int i = 0; i < ps.length; i++ ){
getAssociatedScopes( getUltimateType( ps[i], true ), namespaces, classes );
getAssociatedScopes( getUltimateType( ps[i], true ), namespaces, classes, tu);
}
} else if( t instanceof ICPPPointerToMemberType ){
IBinding binding = ((ICPPPointerToMemberType)t).getMemberOfClass();
if( binding instanceof IType )
getAssociatedScopes( (IType)binding, namespaces, classes );
getAssociatedScopes( getUltimateType( ((ICPPPointerToMemberType)t).getType(), true ), namespaces, classes );
getAssociatedScopes( (IType)binding, namespaces, classes, tu);
getAssociatedScopes( getUltimateType( ((ICPPPointerToMemberType)t).getType(), true ), namespaces, classes, tu);
}
return;
}
static private ICPPNamespaceScope getContainingNamespaceScope( IBinding binding ) throws DOMException{
static private ICPPNamespaceScope getContainingNamespaceScope( IBinding binding, IASTTranslationUnit tu) throws DOMException{
if( binding == null ) return null;
IScope scope = binding.getScope();
while( scope != null && !(scope instanceof ICPPNamespaceScope) ){
scope = scope.getParent();
scope = getParentScope(scope, tu);
}
return (ICPPNamespaceScope) scope;
}
@ -1092,12 +1092,8 @@ public class CPPSemantics {
if( blockItem != null )
node = blockItem;
ICPPScope parentScope = (ICPPScope) scope.getParent();
// the index cannot return the translation unit as parent scope
if (parentScope == null && scope instanceof IIndexBinding) {
parentScope= (ICPPScope) node.getTranslationUnit().getScope();
}
else if( parentScope instanceof ICPPTemplateScope ){
ICPPScope parentScope = (ICPPScope) getParentScope(scope, node.getTranslationUnit());
if( parentScope instanceof ICPPTemplateScope ){
IASTNode parent = node.getParent();
while( parent != null && !(parent instanceof ICPPASTTemplateDeclaration) ){
node = parent;
@ -1115,6 +1111,15 @@ public class CPPSemantics {
}
}
private static IScope getParentScope(IScope scope, IASTTranslationUnit unit) throws DOMException {
IScope parentScope= scope.getParent();
// the index cannot return the translation unit as parent scope
if (parentScope == null && scope instanceof IIndexBinding) {
parentScope= unit.getScope();
}
return parentScope;
}
private static Object lookupInParents( CPPSemantics.LookupData data, ICPPScope lookIn ) throws DOMException{
ICPPBase [] bases = null;
if( lookIn instanceof ICPPClassScope ){
@ -1330,7 +1335,7 @@ public class CPPSemantics {
//namespace are searched at most once
if( !data.visited.containsKey( temp ) ){
enclosing = getClosestEnclosingScope( scope, temp );
enclosing = getClosestEnclosingScope( scope, temp, data.astName.getTranslationUnit());
//data.usingDirectives is a map from enclosing scope to a IScope[]
//of namespaces to consider when we reach that enclosing scope
@ -1345,16 +1350,16 @@ public class CPPSemantics {
}
static private ICPPScope getClosestEnclosingScope( IScope scope1, IScope scope2 ) throws DOMException{
static private ICPPScope getClosestEnclosingScope( IScope scope1, IScope scope2, IASTTranslationUnit tu) throws DOMException{
ObjectSet set = new ObjectSet( 2 );
IScope parent = scope1;
while( parent != null ){
set.put( parent );
parent = parent.getParent();
parent = getParentScope(parent, tu);
}
parent = scope2;
while( parent != null && !set.containsKey( parent ) ){
parent = parent.getParent();
parent = getParentScope(parent, tu);
}
return (ICPPScope) parent;
}