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Introduced token caching to prevent repetetive tokenizing.

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Also removed TokenUnderCursor as it's functionality is in the token cache.

Reviewed-by: ckamm
This commit is contained in:
Erik Verbruggen
2010-06-07 13:06:21 +02:00
parent 2e10016210
commit e42ca194c5
25 changed files with 273 additions and 242 deletions
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52
src/plugins/cpptools/cppcodecompletion.cpp
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@@ -50,7 +50,6 @@
#include <cplusplus/Overview.h>
#include <cplusplus/ExpressionUnderCursor.h>
#include <cplusplus/BackwardsScanner.h>
#include <cplusplus/TokenUnderCursor.h>
#include <cplusplus/LookupContext.h>
#include <coreplugin/icore.h>
@@ -65,7 +64,6 @@
#include <utils/faketooltip.h>
#include <utils/qtcassert.h>
#include <QtCore/QDebug>
#include <QtCore/QMap>
#include <QtCore/QFile>
#include <QtGui/QAction>
@@ -454,7 +452,8 @@ 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)
{
@@ -547,15 +546,14 @@ 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;
}
}
static CPlusPlus::TokenUnderCursor tokenUnderCursor;
const SimpleToken tk = tokenUnderCursor(tc);
const SimpleToken tk = tokenCache->tokenUnderCursor(tc);
if (completionKind == T_DOXY_COMMENT && !(tk.is(T_DOXY_COMMENT) || tk.is(T_CPP_DOXY_COMMENT))) {
completionKind = T_EOF_SYMBOL;
@@ -575,7 +573,7 @@ static int startOfOperator(TextEditor::ITextEditable *editor,
start = pos;
}
else if (completionKind == T_LPAREN) {
const QList<SimpleToken> &tokens = tokenUnderCursor.tokens();
const QList<SimpleToken> &tokens = tokenCache->tokensForBlock(tc.block());
int i = 0;
for (; i < tokens.size(); ++i) {
const SimpleToken &token = tokens.at(i);
@@ -597,11 +595,11 @@ static int startOfOperator(TextEditor::ITextEditable *editor,
// Check for include preprocessor directive
else if (completionKind == T_STRING_LITERAL || completionKind == T_ANGLE_STRING_LITERAL || completionKind == T_SLASH) {
bool include = false;
const QList<SimpleToken> &tokens = tokenUnderCursor.tokens();
const QList<SimpleToken> &tokens = tokenCache->tokensForBlock(tc.block());
if (tokens.size() >= 3) {
if (tokens.at(0).is(T_POUND) && tokens.at(1).is(T_IDENTIFIER) && (tokens.at(2).is(T_STRING_LITERAL) ||
tokens.at(2).is(T_ANGLE_STRING_LITERAL))) {
QStringRef directive = tokens.at(1).text();
QString directive = tokenCache->text(tc.block(), 1);
if (directive == QLatin1String("include") ||
directive == QLatin1String("include_next") ||
directive == QLatin1String("import")) {
@@ -634,9 +632,10 @@ 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 +683,8 @@ 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 +725,7 @@ 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) {
@@ -800,14 +800,8 @@ int CppCodeCompletion::startCompletionInternal(TextEditor::BaseTextEditor *edit,
}
}
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 (results.isEmpty()) {
if (m_completionOperator == T_SIGNAL || m_completionOperator == T_SLOT) {
if (! (expression.isEmpty() || expression == QLatin1String("this"))) {
@@ -828,7 +822,8 @@ 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 +1079,8 @@ 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 +1139,8 @@ 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 +1152,8 @@ 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 +1169,10 @@ 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;
}