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Introduced a token cache for the C++ editor.

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This should speed things up a bit, because before, the line was tokenized at
least 3 times.
This commit is contained in:
Erik Verbruggen
2010-06-04 09:36:05 +02:00
parent 414d9fe3e0
commit c2393df023
23 changed files with 244 additions and 86 deletions
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46
src/plugins/cpptools/cppcodecompletion.cpp
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@@ -65,7 +65,6 @@
#include <utils/faketooltip.h>
#include <utils/qtcassert.h>
#include <QtCore/QDebug>
#include <QtCore/QMap>
#include <QtCore/QFile>
#include <QtGui/QAction>
@@ -454,7 +453,8 @@ QIcon CppCodeCompletion::iconForSymbol(Symbol *symbol) const
/*
Searches backwards for an access operator.
*/
static int startOfOperator(TextEditor::ITextEditable *editor,
static int startOfOperator(TokenCache *tokenCache,
TextEditor::ITextEditable *editor,
int pos, unsigned *kind,
bool wantFunctionCall)
{
@@ -547,7 +547,7 @@ static int startOfOperator(TextEditor::ITextEditable *editor,
}
if (completionKind == T_COMMA) {
ExpressionUnderCursor expressionUnderCursor;
ExpressionUnderCursor expressionUnderCursor(tokenCache);
if (expressionUnderCursor.startOfFunctionCall(tc) == -1) {
completionKind = T_EOF_SYMBOL;
start = pos;
@@ -555,7 +555,7 @@ static int startOfOperator(TextEditor::ITextEditable *editor,
}
static CPlusPlus::TokenUnderCursor tokenUnderCursor;
const SimpleToken tk = tokenUnderCursor(tc);
const SimpleToken tk = tokenUnderCursor(tokenCache, tc);
if (completionKind == T_DOXY_COMMENT && !(tk.is(T_DOXY_COMMENT) || tk.is(T_CPP_DOXY_COMMENT))) {
completionKind = T_EOF_SYMBOL;
@@ -634,9 +634,10 @@ int CppCodeCompletion::startPosition() const
bool CppCodeCompletion::triggersCompletion(TextEditor::ITextEditable *editor)
{
const int pos = editor->position();
TokenCache *tokenCache = m_manager->tokenCache(editor);
unsigned token = T_EOF_SYMBOL;
if (startOfOperator(editor, pos, &token, /*want function call=*/ true) != pos) {
if (startOfOperator(tokenCache, editor, pos, &token, /*want function call=*/ true) != pos) {
if (token == T_POUND) {
if (TextEditor::BaseTextEditor *edit = qobject_cast<TextEditor::BaseTextEditor *>(editor->widget())) {
QTextCursor tc(edit->document());
@@ -684,7 +685,8 @@ int CppCodeCompletion::startCompletionHelper(TextEditor::ITextEditable *editor)
while (editor->characterAt(endOfOperator - 1).isSpace())
--endOfOperator;
int endOfExpression = startOfOperator(editor, endOfOperator,
TokenCache *tokenCache = m_manager->tokenCache(editor);
int endOfExpression = startOfOperator(tokenCache, editor, endOfOperator,
&m_completionOperator,
/*want function call =*/ true);
@@ -725,7 +727,7 @@ int CppCodeCompletion::startCompletionHelper(TextEditor::ITextEditable *editor)
return m_startPosition;
}
ExpressionUnderCursor expressionUnderCursor;
ExpressionUnderCursor expressionUnderCursor(m_manager->tokenCache(editor));
QTextCursor tc(edit->document());
if (m_completionOperator == T_COMMA) {
@@ -800,13 +802,13 @@ int CppCodeCompletion::startCompletionInternal(TextEditor::BaseTextEditor *edit,
}
}
if (debug)
qDebug() << "scope:" << scope->owner()->fileName() << scope->owner()->line() << scope->owner()->column();
// if (debug)
// qDebug() << "scope:" << scope->owner()->fileName() << scope->owner()->line() << scope->owner()->column();
QList<LookupItem> results = typeOfExpression(expression, scope, TypeOfExpression::Preprocess);
if (debug)
qDebug() << "got:" << results.size() << "results";
// if (debug)
// qDebug() << "got:" << results.size() << "results";
if (results.isEmpty()) {
if (m_completionOperator == T_SIGNAL || m_completionOperator == T_SLOT) {
@@ -828,7 +830,8 @@ int CppCodeCompletion::startCompletionInternal(TextEditor::BaseTextEditor *edit,
QTextCursor tc(edit->document());
tc.setPosition(index);
ExpressionUnderCursor expressionUnderCursor;
TokenCache *tokenCache = m_manager->tokenCache(edit->editableInterface());
ExpressionUnderCursor expressionUnderCursor(tokenCache);
const QString baseExpression = expressionUnderCursor(tc);
// Resolve the type of this expression
@@ -1084,7 +1087,8 @@ bool CppCodeCompletion::completeConstructorOrFunction(const QList<LookupItem> &r
QTextCursor tc(edit->document());
tc.setPosition(endOfExpression);
BackwardsScanner bs(tc);
TokenCache *tokenCache = m_manager->tokenCache(m_editor);
BackwardsScanner bs(tokenCache, tc);
const int startToken = bs.startToken();
const int lineStartToken = bs.startOfLine(startToken);
// make sure the required tokens are actually available
@@ -1143,8 +1147,8 @@ bool CppCodeCompletion::completeMember(const QList<LookupItem> &baseResults)
{
const LookupContext &context = typeOfExpression.context();
if (debug)
qDebug() << Q_FUNC_INFO << __LINE__;
// if (debug)
// qDebug() << Q_FUNC_INFO << __LINE__;
if (baseResults.isEmpty())
return false;
@@ -1156,8 +1160,8 @@ bool CppCodeCompletion::completeMember(const QList<LookupItem> &baseResults)
if (ClassOrNamespace *binding = resolveExpression.baseExpression(baseResults,
m_completionOperator,
&replacedDotOperator)) {
if (debug)
qDebug() << "cool we got a binding for the base expression";
// if (debug)
// qDebug() << "cool we got a binding for the base expression";
if (replacedDotOperator && binding) {
// Replace . with ->
@@ -1173,10 +1177,10 @@ bool CppCodeCompletion::completeMember(const QList<LookupItem> &baseResults)
return ! m_completions.isEmpty();
}
if (debug) {
Overview oo;
qDebug() << "hmm, got:" << oo(baseResults.first().type());
}
// if (debug) {
// Overview oo;
// qDebug() << "hmm, got:" << oo(baseResults.first().type());
// }
return false;
}