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Fixed switch from declaration to definition

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Added compatibility scores to functions - candidates to switch to

Merge-request: 121
Reviewed-by: Thorbjørn Lindeijer <thorbjorn.lindeijer@nokia.com>
This commit is contained in:
Alexander Anokhin
2010-03-09 13:53:27 +01:00
committed by Thorbjørn Lindeijer
parent 417a1c9f28
commit a72042ab6a
1 changed files with 42 additions and 4 deletions
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46
src/plugins/cppeditor/cppeditor.cpp
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@@ -1429,6 +1429,12 @@ void CPPEditor::jumpToDefinition()
openLink(findLinkAt(textCursor()));
}
struct DefinitionScore
{
Function *f;
int score;
};
Symbol *CPPEditor::findDefinition(Symbol *symbol)
{
if (symbol->isFunction())
@@ -1474,16 +1480,48 @@ Symbol *CPPEditor::findDefinition(Symbol *symbol)
// get the instance of the document.
Document::Ptr thisDocument = snapshot.document(it.key());
QList<DefinitionScore> definitionScores;
foreach (Function *f, it.value()) {
DefinitionScore score;
score.score = 0; // current function's score
score.f = f; // current function
int funTyArgsCount = funTy->argumentCount();
int fArgsCount = f->argumentCount();
// max score if arguments count equals
if (funTyArgsCount == fArgsCount)
score.score += funTyArgsCount + 1;
else
score.score += (funTyArgsCount < fArgsCount) ? funTyArgsCount : fArgsCount;
// +1 to score for every equal parameter
unsigned minCount = (funTyArgsCount < fArgsCount) ? funTyArgsCount : fArgsCount;
for (unsigned i = 0; i < minCount; ++i)
if (Symbol *funTyArg = funTy->argumentAt(i))
if (Symbol *fArg = f->argumentAt(i))
if (funTyArg->type().isEqualTo(fArg->type())) {
score.score++;
}
definitionScores.append(score);
}
// looking for max score
if (!definitionScores.isEmpty()) {
DefinitionScore maxScore = definitionScores.first();
foreach (const DefinitionScore& score, definitionScores) {
if (maxScore.score < score.score)
maxScore = score;
}
// create a lookup context
const LookupContext context(f, expressionDocument,
const LookupContext context(maxScore.f, expressionDocument,
thisDocument, snapshot);
// search the matching definition for the function declaration `symbol'.
foreach (Symbol *s, context.resolve(f->name())) {
foreach (Symbol *s, context.resolve(maxScore.f->name()))
if (s == symbol)
return f;
}
return maxScore.f;
}
}