From 8b514657ccb686f51a54ea9c3ab07e8877cada15 Mon Sep 17 00:00:00 2001
From: Roberto Raggi <roberto.raggi@nokia.com>
Date: Fri, 16 Oct 2009 12:22:33 +0200
Subject: Added support to complete function-call operators.

---
 src/plugins/cpptools/cppcodecompletion.cpp | 54 +++++++++++++++++++++++-------
 1 file changed, 41 insertions(+), 13 deletions(-)

(limited to 'src/plugins/cpptools/cppcodecompletion.cpp')

diff --git a/src/plugins/cpptools/cppcodecompletion.cpp b/src/plugins/cpptools/cppcodecompletion.cpp
index 16bda30448..42cd69ff77 100644
--- a/src/plugins/cpptools/cppcodecompletion.cpp
+++ b/src/plugins/cpptools/cppcodecompletion.cpp
@@ -857,7 +857,7 @@ int CppCodeCompletion::startCompletion(TextEditor::ITextEditable *editor)
         }
 
         if (! resolvedTypes.isEmpty()) {
-            if (m_completionOperator == T_LPAREN && completeConstructorOrFunction(resolvedTypes)) {
+            if (m_completionOperator == T_LPAREN && completeConstructorOrFunction(resolvedTypes, context)) {
                 return m_startPosition;
 
             } else if ((m_completionOperator == T_DOT || m_completionOperator == T_ARROW) &&
@@ -884,16 +884,19 @@ int CppCodeCompletion::startCompletion(TextEditor::ITextEditable *editor)
 
             QTextCursor tc(edit->document());
             tc.setPosition(index);
-            QString baseExpression = expressionUnderCursor(tc);
+
+            const QString baseExpression = expressionUnderCursor(tc);
 
             // Resolve the type of this expression
-            QList<TypeOfExpression::Result> results =
-                    typeOfExpression(baseExpression, thisDocument, lastVisibleSymbol, TypeOfExpression::Preprocess);
+            const QList<TypeOfExpression::Result> results =
+                    typeOfExpression(baseExpression, thisDocument,
+                                     lastVisibleSymbol,
+                                     TypeOfExpression::Preprocess);
 
             // If it's a class, add completions for the constructors
             foreach (const TypeOfExpression::Result &result, results) {
                 if (result.first->isClassType()) {
-                    if (completeConstructorOrFunction(results))
+                    if (completeConstructorOrFunction(results, context))
                         return m_startPosition;
                     break;
                 }
@@ -905,12 +908,13 @@ int CppCodeCompletion::startCompletion(TextEditor::ITextEditable *editor)
     return -1;
 }
 
-bool CppCodeCompletion::completeConstructorOrFunction(const QList<TypeOfExpression::Result> &results)
+bool CppCodeCompletion::completeConstructorOrFunction(const QList<TypeOfExpression::Result> &results,
+                                                      const LookupContext &context)
 {
     QList<Function *> functions;
 
     foreach (const TypeOfExpression::Result &result, results) {
-        FullySpecifiedType exprTy = result.first;
+        FullySpecifiedType exprTy = result.first.simplified();
 
         if (Class *klass = exprTy->asClassType()) {
             Name *className = klass->name();
@@ -940,8 +944,8 @@ bool CppCodeCompletion::completeConstructorOrFunction(const QList<TypeOfExpressi
     }
 
     if (functions.isEmpty()) {
-        foreach (const TypeOfExpression::Result &p, results) {
-            FullySpecifiedType ty = p.first;
+        foreach (const TypeOfExpression::Result &result, results) {
+            FullySpecifiedType ty = result.first.simplified();
 
             if (Function *fun = ty->asFunctionType()) {
 
@@ -950,10 +954,6 @@ bool CppCodeCompletion::completeConstructorOrFunction(const QList<TypeOfExpressi
                 else if (! functions.isEmpty() && functions.first()->scope() != fun->scope())
                     continue; // skip fun, it's an hidden declaration.
 
-                Name *name = fun->name();
-                if (QualifiedNameId *q = fun->name()->asQualifiedNameId())
-                    name = q->unqualifiedNameId();
-
                 bool newOverload = true;
 
                 foreach (Function *f, functions) {
@@ -967,7 +967,35 @@ bool CppCodeCompletion::completeConstructorOrFunction(const QList<TypeOfExpressi
                     functions.append(fun);
             }
         }
+    }
+
+    if (functions.isEmpty()) {
+        ResolveExpression resolveExpression(context);
+        ResolveClass resolveClass;
+        Name *functionCallOp = context.control()->operatorNameId(OperatorNameId::FunctionCallOp);
+
+        foreach (const TypeOfExpression::Result &result, results) {
+            FullySpecifiedType ty = result.first.simplified();
+
+            if (NamedType *namedTy = ty->asNamedType()) {
+                const QList<Symbol *> classObjectCandidates = resolveClass(namedTy->name(), result, context);
 
+                foreach (Symbol *classObjectCandidate, classObjectCandidates) {
+                    if (Class *klass = classObjectCandidate->asClass()) {
+                        const QList<TypeOfExpression::Result> overloads =
+                                resolveExpression.resolveMember(functionCallOp, klass,
+                                                                namedTy->name());
+
+                        foreach (const TypeOfExpression::Result &overloadResult, overloads) {
+                            FullySpecifiedType overloadTy = overloadResult.first.simplified();
+
+                            if (Function *funTy = overloadTy->asFunctionType())
+                                functions.append(funTy);
+                        }
+                    }
+                }
+            }
+        }
     }
 
     if (! functions.isEmpty()) {
-- 
cgit v1.2.1