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Mark the symbols lazily in a background thread.

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This commit is contained in:
Roberto Raggi
2010-07-19 12:17:08 +02:00
parent 6153769cd8
commit 54fb9b8fb5
2 changed files with 101 additions and 34 deletions
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126
src/plugins/cppeditor/cppeditor.cpp
View File

@@ -270,15 +270,13 @@ protected:
};
struct FindCanonicalSymbol
struct CanonicalSymbol
{
CPPEditor *editor;
QString code;
TypeOfExpression typeOfExpression;
ExpressionUnderCursor expressionUnderCursor;
SemanticInfo info;
FindCanonicalSymbol(CPPEditor *editor, const SemanticInfo &info)
CanonicalSymbol(CPPEditor *editor, const SemanticInfo &info)
: editor(editor), info(info)
{
typeOfExpression.init(info.doc, info.snapshot);
@@ -289,12 +287,19 @@ struct FindCanonicalSymbol
return typeOfExpression.context();
}
inline bool isIdentifierChar(const QChar &ch) const
static inline bool isIdentifierChar(const QChar &ch)
{
return ch.isLetterOrNumber() || ch == QLatin1Char('_');
}
Symbol *operator()(const QTextCursor &cursor)
Scope *getScopeAndExpression(const QTextCursor &cursor, QString *code)
{
return getScopeAndExpression(editor, info, cursor, code);
}
static Scope *getScopeAndExpression(CPPEditor *editor, const SemanticInfo &info,
const QTextCursor &cursor,
QString *code)
{
if (! info.doc)
return 0;
@@ -316,10 +321,30 @@ struct FindCanonicalSymbol
++pos;
tc.setPosition(pos);
code = expressionUnderCursor(tc);
Scope *scope = info.doc->scopeAt(line, col);
ExpressionUnderCursor expressionUnderCursor;
*code = expressionUnderCursor(tc);
return info.doc->scopeAt(line, col);
}
Symbol *operator()(const QTextCursor &cursor)
{
QString code;
if (Scope *scope = getScopeAndExpression(cursor, &code))
return operator()(scope, code);
return 0;
}
Symbol *operator()(Scope *scope, const QString &code)
{
return canonicalSymbol(scope, code, typeOfExpression);
}
static Symbol *canonicalSymbol(Scope *scope, const QString &code, TypeOfExpression &typeOfExpression)
{
const QList<LookupItem> results = typeOfExpression(code, scope, TypeOfExpression::Preprocess);
for (int i = 0; i < results.size(); ++i) { // ### TODO virtual methods and classes.
const LookupItem &r = results.at(i);
@@ -329,6 +354,7 @@ struct FindCanonicalSymbol
return 0;
}
};
} // end of anonymous namespace
@@ -372,6 +398,10 @@ CPPEditor::CPPEditor(QWidget *parent)
m_nextHighlightBlockNumber = 0;
connect(&m_highlightWatcher, SIGNAL(resultsReadyAt(int,int)), SLOT(highlightTypeUsages(int,int)));
connect(&m_highlightWatcher, SIGNAL(finished()), SLOT(finishTypeUsages()));
m_referencesRevision = 0;
m_referencesCursorPosition = 0;
connect(&m_referencesWatcher, SIGNAL(finished()), SLOT(markSymbolsNow()));
}
CPPEditor::~CPPEditor()
@@ -587,7 +617,7 @@ void CPPEditor::findUsages()
{
const SemanticInfo info = m_lastSemanticInfo;
FindCanonicalSymbol cs(this, info);
CanonicalSymbol cs(this, info);
Symbol *canonicalSymbol = cs(textCursor());
if (canonicalSymbol) {
m_modelManager->findUsages(canonicalSymbol, cs.context());
@@ -634,7 +664,7 @@ void CPPEditor::renameUsagesNow()
{
const SemanticInfo info = m_lastSemanticInfo;
FindCanonicalSymbol cs(this, info);
CanonicalSymbol cs(this, info);
if (Symbol *canonicalSymbol = cs(textCursor())) {
if (canonicalSymbol->identifier() != 0) {
if (showWarningMessage()) {
@@ -649,42 +679,73 @@ void CPPEditor::renameUsagesNow()
}
}
void CPPEditor::markSymbols(Symbol *canonicalSymbol, const SemanticInfo &info)
void CPPEditor::markSymbolsNow()
{
//updateSemanticInfo(m_semanticHighlighter->semanticInfo(currentSource()));
if (m_references.isCanceled())
return;
else if (m_referencesCursorPosition != position())
return;
else if (m_referencesRevision != editorRevision())
return;
abortRename();
const SemanticInfo info = m_lastSemanticInfo;
TranslationUnit *unit = info.doc->translationUnit();
const QList<int> result = m_references.result();
QList<QTextEdit::ExtraSelection> selections;
if (info.doc && canonicalSymbol) {
TranslationUnit *unit = info.doc->translationUnit();
foreach (int index, result) {
unsigned line, column;
unit->getTokenPosition(index, &line, &column);
LookupContext context(info.doc, info.snapshot);
const QList<int> references = m_modelManager->references(canonicalSymbol, context);
foreach (int index, references) {
unsigned line, column;
unit->getTokenPosition(index, &line, &column);
if (column)
--column; // adjust the column position.
if (column)
--column; // adjust the column position.
const int len = unit->tokenAt(index).f.length;
const int len = unit->tokenAt(index).f.length;
QTextCursor cursor(document()->findBlockByNumber(line - 1));
cursor.setPosition(cursor.position() + column);
cursor.setPosition(cursor.position() + len, QTextCursor::KeepAnchor);
QTextCursor cursor(document()->findBlockByNumber(line - 1));
cursor.setPosition(cursor.position() + column);
cursor.setPosition(cursor.position() + len, QTextCursor::KeepAnchor);
QTextEdit::ExtraSelection sel;
sel.format = m_occurrencesFormat;
sel.cursor = cursor;
selections.append(sel);
QTextEdit::ExtraSelection sel;
sel.format = m_occurrencesFormat;
sel.cursor = cursor;
selections.append(sel);
}
}
setExtraSelections(CodeSemanticsSelection, selections);
}
static QList<int> lazyFindReferences(Scope *scope, QString code, const LookupContext &context)
{
TypeOfExpression typeOfExpression;
typeOfExpression.init(context.thisDocument(), context.snapshot(), context.bindings());
if (Symbol *canonicalSymbol = CanonicalSymbol::canonicalSymbol(scope, code, typeOfExpression))
return CppTools::CppModelManagerInterface::instance()->references(canonicalSymbol, context);
return QList<int>();
}
void CPPEditor::markSymbols(const QTextCursor &tc, const SemanticInfo &info)
{
abortRename();
if (! info.doc)
return;
CanonicalSymbol cs(this, info);
QString expression;
if (Scope *scope = cs.getScopeAndExpression(this, info, tc, &expression)) {
LookupContext context(info.doc, info.snapshot);
m_references.cancel();
m_referencesRevision = info.revision;
m_referencesCursorPosition = position();
m_references = QtConcurrent::run(&lazyFindReferences, scope, expression, context);
m_referencesWatcher.setFuture(m_references);
}
}
void CPPEditor::renameSymbolUnderCursor()
{
updateSemanticInfo(m_semanticHighlighter->semanticInfo(currentSource()));
@@ -1792,8 +1853,7 @@ void CPPEditor::updateSemanticInfo(const SemanticInfo &semanticInfo)
if (! m_renameSelections.isEmpty())
setExtraSelections(CodeSemanticsSelection, m_renameSelections); // ###
else {
FindCanonicalSymbol cs(this, semanticInfo);
markSymbols(cs(textCursor()), semanticInfo);
markSymbols(textCursor(), semanticInfo);
}
m_lastSemanticInfo.forced = false; // clear the forced flag

9
src/plugins/cppeditor/cppeditor.h
View File

@@ -236,13 +236,15 @@ private Q_SLOTS:
void highlightTypeUsages(int from, int to);
void finishTypeUsages();
void markSymbolsNow();
void performQuickFix(int index);
private:
bool showWarningMessage() const;
void setShowWarningMessage(bool showWarningMessage);
void markSymbols(CPlusPlus::Symbol *canonicalSymbol, const SemanticInfo &info);
void markSymbols(const QTextCursor &tc, const SemanticInfo &info);
bool sortedOutline() const;
CPlusPlus::Symbol *findDefinition(CPlusPlus::Symbol *symbol, const CPlusPlus::Snapshot &snapshot);
virtual void indentBlock(QTextDocument *doc, QTextBlock block, QChar typedChar);
@@ -305,6 +307,11 @@ private:
QFutureWatcher<SemanticInfo::Use> m_highlightWatcher;
unsigned m_highlightRevision; // the editor revision that requested the highlight
int m_nextHighlightBlockNumber;
QFuture<QList<int> > m_references;
QFutureWatcher<QList<int> > m_referencesWatcher;
unsigned m_referencesRevision;
int m_referencesCursorPosition;
};