forked from qt-creator/qt-creator
242579099a
Task-number: QTCREATORBUG-24098 Change-Id: I97347ac3fb397fea8eee655e3cc4ee252c511885 Reviewed-by: hjk <hjk@qt.io>
2137 lines
77 KiB
C++
2137 lines
77 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of Qt Creator.
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**
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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**
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****************************************************************************/
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#include "cppcompletionassist.h"
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#include "builtineditordocumentparser.h"
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#include "cppdoxygen.h"
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#include "cppmodelmanager.h"
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#include "cpptoolsconstants.h"
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#include "cpptoolsreuse.h"
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#include "editordocumenthandle.h"
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#include <coreplugin/icore.h>
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#include <cppeditor/cppeditorconstants.h>
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#include <texteditor/codeassist/assistproposalitem.h>
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#include <texteditor/codeassist/genericproposal.h>
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#include <texteditor/codeassist/ifunctionhintproposalmodel.h>
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#include <texteditor/codeassist/functionhintproposal.h>
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#include <texteditor/snippets/snippet.h>
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#include <texteditor/texteditorsettings.h>
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#include <texteditor/completionsettings.h>
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#include <utils/textutils.h>
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#include <utils/mimetypes/mimedatabase.h>
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#include <utils/qtcassert.h>
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#include <cplusplus/BackwardsScanner.h>
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#include <cplusplus/CppRewriter.h>
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#include <cplusplus/ExpressionUnderCursor.h>
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#include <cplusplus/MatchingText.h>
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#include <cplusplus/Overview.h>
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#include <cplusplus/ResolveExpression.h>
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#include <QDirIterator>
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#include <QLatin1String>
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#include <QTextCursor>
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#include <QTextDocument>
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#include <QIcon>
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using namespace CPlusPlus;
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using namespace CppEditor;
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using namespace CppTools;
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using namespace CppTools::Internal;
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using namespace TextEditor;
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namespace CppTools {
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namespace Internal {
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struct CompleteFunctionDeclaration
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{
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explicit CompleteFunctionDeclaration(Function *f = nullptr)
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: function(f)
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{}
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Function *function;
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};
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// ---------------------
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// CppAssistProposalItem
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// ---------------------
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class CppAssistProposalItem final : public AssistProposalItem
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{
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public:
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~CppAssistProposalItem() noexcept override = default;
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bool prematurelyApplies(const QChar &c) const override;
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void applyContextualContent(TextDocumentManipulatorInterface &manipulator, int basePosition) const override;
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bool isOverloaded() const { return m_isOverloaded; }
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void markAsOverloaded() { m_isOverloaded = true; }
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void keepCompletionOperator(unsigned compOp) { m_completionOperator = compOp; }
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void keepTypeOfExpression(const QSharedPointer<TypeOfExpression> &typeOfExp)
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{ m_typeOfExpression = typeOfExp; }
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bool isKeyword() const final
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{ return m_isKeyword; }
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void setIsKeyword(bool isKeyword)
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{ m_isKeyword = isKeyword; }
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quint64 hash() const override;
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private:
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QSharedPointer<TypeOfExpression> m_typeOfExpression;
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unsigned m_completionOperator = T_EOF_SYMBOL;
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mutable QChar m_typedChar;
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bool m_isOverloaded = false;
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bool m_isKeyword = false;
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};
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} // Internal
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} // CppTools
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Q_DECLARE_METATYPE(CppTools::Internal::CompleteFunctionDeclaration)
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bool CppAssistProposalModel::isSortable(const QString &prefix) const
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{
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if (m_completionOperator != T_EOF_SYMBOL)
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return true;
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return !prefix.isEmpty();
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}
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AssistProposalItemInterface *CppAssistProposalModel::proposalItem(int index) const
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{
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AssistProposalItemInterface *item = GenericProposalModel::proposalItem(index);
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if (!item->isSnippet()) {
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auto cppItem = static_cast<CppAssistProposalItem *>(item);
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cppItem->keepCompletionOperator(m_completionOperator);
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cppItem->keepTypeOfExpression(m_typeOfExpression);
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}
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return item;
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}
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bool CppAssistProposalItem::prematurelyApplies(const QChar &typedChar) const
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{
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if (m_completionOperator == T_SIGNAL || m_completionOperator == T_SLOT) {
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if (typedChar == QLatin1Char('(') || typedChar == QLatin1Char(',')) {
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m_typedChar = typedChar;
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return true;
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}
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} else if (m_completionOperator == T_STRING_LITERAL
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|| m_completionOperator == T_ANGLE_STRING_LITERAL) {
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if (typedChar == QLatin1Char('/') && text().endsWith(QLatin1Char('/'))) {
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m_typedChar = typedChar;
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return true;
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}
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} else if (data().value<Symbol *>()) {
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if (typedChar == QLatin1Char(':')
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|| typedChar == QLatin1Char(';')
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|| typedChar == QLatin1Char('.')
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|| typedChar == QLatin1Char(',')
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|| typedChar == QLatin1Char('(')) {
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m_typedChar = typedChar;
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return true;
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}
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} else if (data().canConvert<CompleteFunctionDeclaration>()) {
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if (typedChar == QLatin1Char('(')) {
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m_typedChar = typedChar;
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return true;
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}
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}
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return false;
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}
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static bool isDereferenced(TextDocumentManipulatorInterface &manipulator, int basePosition)
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{
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QTextCursor cursor = manipulator.textCursorAt(basePosition);
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cursor.setPosition(basePosition);
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BackwardsScanner scanner(cursor, LanguageFeatures());
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for (int pos = scanner.startToken()-1; pos >= 0; pos--) {
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switch (scanner[pos].kind()) {
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case T_COLON_COLON:
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case T_IDENTIFIER:
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//Ignore scope specifiers
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break;
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case T_AMPER: return true;
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default: return false;
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}
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}
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return false;
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}
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quint64 CppAssistProposalItem::hash() const
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{
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if (data().canConvert<Symbol *>())
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return quint64(data().value<Symbol *>()->index());
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else if (data().canConvert<CompleteFunctionDeclaration>())
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return quint64(data().value<CompleteFunctionDeclaration>().function->index());
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return 0;
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}
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void CppAssistProposalItem::applyContextualContent(TextDocumentManipulatorInterface &manipulator, int basePosition) const
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{
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Symbol *symbol = nullptr;
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if (data().isValid())
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symbol = data().value<Symbol *>();
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QString toInsert;
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QString extraChars;
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int extraLength = 0;
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int cursorOffset = 0;
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bool setAutoCompleteSkipPos = false;
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bool autoParenthesesEnabled = true;
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if (m_completionOperator == T_SIGNAL || m_completionOperator == T_SLOT) {
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toInsert = text();
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extraChars += QLatin1Char(')');
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if (m_typedChar == QLatin1Char('(')) // Eat the opening parenthesis
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m_typedChar = QChar();
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} else if (m_completionOperator == T_STRING_LITERAL || m_completionOperator == T_ANGLE_STRING_LITERAL) {
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toInsert = text();
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if (!toInsert.endsWith(QLatin1Char('/'))) {
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extraChars += QLatin1Char((m_completionOperator == T_ANGLE_STRING_LITERAL) ? '>' : '"');
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} else {
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if (m_typedChar == QLatin1Char('/')) // Eat the slash
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m_typedChar = QChar();
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}
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} else {
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toInsert = text();
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const CompletionSettings &completionSettings = TextEditorSettings::completionSettings();
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const bool autoInsertBrackets = completionSettings.m_autoInsertBrackets;
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if (autoInsertBrackets && symbol && symbol->type()) {
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if (Function *function = symbol->type()->asFunctionType()) {
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// If the member is a function, automatically place the opening parenthesis,
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// except when it might take template parameters.
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if (!function->hasReturnType()
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&& (function->unqualifiedName()
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&& !function->unqualifiedName()->isDestructorNameId())) {
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// Don't insert any magic, since the user might have just wanted to select the class
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/// ### port me
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#if 0
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} else if (function->templateParameterCount() != 0 && typedChar != QLatin1Char('(')) {
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// If there are no arguments, then we need the template specification
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if (function->argumentCount() == 0)
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extraChars += QLatin1Char('<');
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#endif
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} else if (!isDereferenced(manipulator, basePosition) && !function->isAmbiguous()) {
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// When the user typed the opening parenthesis, he'll likely also type the closing one,
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// in which case it would be annoying if we put the cursor after the already automatically
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// inserted closing parenthesis.
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const bool skipClosingParenthesis = m_typedChar != QLatin1Char('(');
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if (completionSettings.m_spaceAfterFunctionName)
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extraChars += QLatin1Char(' ');
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extraChars += QLatin1Char('(');
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if (m_typedChar == QLatin1Char('('))
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m_typedChar = QChar();
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// If the function doesn't return anything, automatically place the semicolon,
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// unless we're doing a scope completion (then it might be function definition).
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const QChar characterAtCursor = manipulator.characterAt(manipulator.currentPosition());
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bool endWithSemicolon = m_typedChar == QLatin1Char(';')
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|| (function->returnType()->isVoidType() && m_completionOperator != T_COLON_COLON);
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const QChar semicolon = m_typedChar.isNull() ? QLatin1Char(';') : m_typedChar;
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if (endWithSemicolon && characterAtCursor == semicolon) {
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endWithSemicolon = false;
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m_typedChar = QChar();
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}
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// If the function takes no arguments, automatically place the closing parenthesis
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if (!isOverloaded() && !function->hasArguments() && skipClosingParenthesis) {
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extraChars += QLatin1Char(')');
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if (endWithSemicolon) {
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extraChars += semicolon;
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m_typedChar = QChar();
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}
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} else if (autoParenthesesEnabled) {
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const QChar lookAhead = manipulator.characterAt(manipulator.currentPosition() + 1);
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if (MatchingText::shouldInsertMatchingText(lookAhead)) {
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extraChars += QLatin1Char(')');
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--cursorOffset;
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setAutoCompleteSkipPos = true;
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if (endWithSemicolon) {
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extraChars += semicolon;
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--cursorOffset;
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m_typedChar = QChar();
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}
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}
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// TODO: When an opening parenthesis exists, the "semicolon" should really be
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// inserted after the matching closing parenthesis.
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}
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}
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}
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}
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if (autoInsertBrackets && data().canConvert<CompleteFunctionDeclaration>()) {
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if (m_typedChar == QLatin1Char('('))
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m_typedChar = QChar();
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// everything from the closing parenthesis on are extra chars, to
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// make sure an auto-inserted ")" gets replaced by ") const" if necessary
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int closingParen = toInsert.lastIndexOf(QLatin1Char(')'));
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extraChars = toInsert.mid(closingParen);
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toInsert.truncate(closingParen);
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}
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}
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// Append an unhandled typed character, adjusting cursor offset when it had been adjusted before
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if (!m_typedChar.isNull()) {
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extraChars += m_typedChar;
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if (cursorOffset != 0)
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--cursorOffset;
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}
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// Avoid inserting characters that are already there
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int currentPosition = manipulator.currentPosition();
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QTextCursor cursor = manipulator.textCursorAt(basePosition);
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cursor.movePosition(QTextCursor::EndOfWord);
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const QString textAfterCursor = manipulator.textAt(currentPosition,
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cursor.position() - currentPosition);
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if (toInsert != textAfterCursor
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&& toInsert.indexOf(textAfterCursor, currentPosition - basePosition) >= 0) {
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currentPosition = cursor.position();
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}
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for (int i = 0; i < extraChars.length(); ++i) {
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const QChar a = extraChars.at(i);
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const QChar b = manipulator.characterAt(currentPosition + i);
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if (a == b)
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++extraLength;
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else
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break;
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}
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toInsert += extraChars;
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// Insert the remainder of the name
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const int length = currentPosition - basePosition + extraLength;
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manipulator.replace(basePosition, length, toInsert);
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manipulator.setCursorPosition(basePosition + toInsert.length());
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if (cursorOffset)
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manipulator.setCursorPosition(manipulator.currentPosition() + cursorOffset);
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if (setAutoCompleteSkipPos)
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manipulator.setAutoCompleteSkipPosition(manipulator.currentPosition());
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}
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// --------------------
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// CppFunctionHintModel
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// --------------------
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class CppFunctionHintModel : public IFunctionHintProposalModel
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{
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public:
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CppFunctionHintModel(const QList<Function *> &functionSymbols,
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const QSharedPointer<TypeOfExpression> &typeOfExp)
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: m_functionSymbols(functionSymbols)
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, m_currentArg(-1)
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, m_typeOfExpression(typeOfExp)
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{}
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void reset() override {}
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int size() const override { return m_functionSymbols.size(); }
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QString text(int index) const override;
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int activeArgument(const QString &prefix) const override;
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private:
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QList<Function *> m_functionSymbols;
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mutable int m_currentArg;
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QSharedPointer<TypeOfExpression> m_typeOfExpression;
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};
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QString CppFunctionHintModel::text(int index) const
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{
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Overview overview;
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overview.showReturnTypes = true;
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overview.showArgumentNames = true;
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overview.markedArgument = m_currentArg + 1;
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Function *f = m_functionSymbols.at(index);
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const QString prettyMethod = overview.prettyType(f->type(), f->name());
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const int begin = overview.markedArgumentBegin;
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const int end = overview.markedArgumentEnd;
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QString hintText;
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hintText += prettyMethod.left(begin).toHtmlEscaped();
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hintText += QLatin1String("<b>");
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hintText += prettyMethod.mid(begin, end - begin).toHtmlEscaped();
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hintText += QLatin1String("</b>");
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hintText += prettyMethod.mid(end).toHtmlEscaped();
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return hintText;
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}
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int CppFunctionHintModel::activeArgument(const QString &prefix) const
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{
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int argnr = 0;
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int parcount = 0;
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SimpleLexer tokenize;
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Tokens tokens = tokenize(prefix);
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for (int i = 0; i < tokens.count(); ++i) {
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const Token &tk = tokens.at(i);
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if (tk.is(T_LPAREN))
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++parcount;
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else if (tk.is(T_RPAREN))
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--parcount;
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else if (!parcount && tk.is(T_COMMA))
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++argnr;
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}
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if (parcount < 0)
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return -1;
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if (argnr != m_currentArg)
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m_currentArg = argnr;
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return argnr;
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}
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// ---------------------------
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// InternalCompletionAssistProvider
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// ---------------------------
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IAssistProcessor *InternalCompletionAssistProvider::createProcessor() const
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{
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return new InternalCppCompletionAssistProcessor;
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}
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AssistInterface *InternalCompletionAssistProvider::createAssistInterface(
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const Utils::FilePath &filePath,
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const TextEditorWidget *textEditorWidget,
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const LanguageFeatures &languageFeatures,
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int position,
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AssistReason reason) const
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{
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QTC_ASSERT(textEditorWidget, return nullptr);
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return new CppCompletionAssistInterface(filePath,
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textEditorWidget,
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BuiltinEditorDocumentParser::get(filePath.toString()),
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languageFeatures,
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position,
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reason,
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CppModelManager::instance()->workingCopy());
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}
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// -----------------
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// CppAssistProposal
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// -----------------
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class CppAssistProposal : public GenericProposal
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{
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public:
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CppAssistProposal(int cursorPos, GenericProposalModelPtr model)
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: GenericProposal(cursorPos, model)
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, m_replaceDotForArrow(model.staticCast<CppAssistProposalModel>()->m_replaceDotForArrow)
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{}
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bool isCorrective(TextEditorWidget *) const override { return m_replaceDotForArrow; }
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void makeCorrection(TextEditorWidget *editorWidget) override;
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private:
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bool m_replaceDotForArrow;
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};
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void CppAssistProposal::makeCorrection(TextEditorWidget *editorWidget)
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{
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const int oldPosition = editorWidget->position();
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editorWidget->setCursorPosition(basePosition() - 1);
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editorWidget->replace(1, QLatin1String("->"));
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editorWidget->setCursorPosition(oldPosition + 1);
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moveBasePosition(1);
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}
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namespace {
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class ConvertToCompletionItem: protected NameVisitor
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{
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// The completion item.
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AssistProposalItem *_item = nullptr;
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// The current symbol.
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Symbol *_symbol = nullptr;
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// The pretty printer.
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Overview overview;
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public:
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ConvertToCompletionItem()
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{
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overview.showReturnTypes = true;
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overview.showArgumentNames = true;
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}
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AssistProposalItem *operator()(Symbol *symbol)
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{
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//using declaration can be qualified
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if (!symbol || !symbol->name() || (symbol->name()->isQualifiedNameId()
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&& !symbol->asUsingDeclaration()))
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return nullptr;
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|
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AssistProposalItem *previousItem = switchCompletionItem(nullptr);
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Symbol *previousSymbol = switchSymbol(symbol);
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accept(symbol->unqualifiedName());
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if (_item)
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_item->setData(QVariant::fromValue(symbol));
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(void) switchSymbol(previousSymbol);
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return switchCompletionItem(previousItem);
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}
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protected:
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Symbol *switchSymbol(Symbol *symbol)
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|
{
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Symbol *previousSymbol = _symbol;
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_symbol = symbol;
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return previousSymbol;
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|
}
|
|
|
|
AssistProposalItem *switchCompletionItem(AssistProposalItem *item)
|
|
{
|
|
AssistProposalItem *previousItem = _item;
|
|
_item = item;
|
|
return previousItem;
|
|
}
|
|
|
|
AssistProposalItem *newCompletionItem(const Name *name)
|
|
{
|
|
AssistProposalItem *item = new CppAssistProposalItem;
|
|
item->setText(overview.prettyName(name));
|
|
return item;
|
|
}
|
|
|
|
void visit(const Identifier *name) override
|
|
{
|
|
_item = newCompletionItem(name);
|
|
if (!_symbol->isScope() || _symbol->isFunction())
|
|
_item->setDetail(overview.prettyType(_symbol->type(), name));
|
|
}
|
|
|
|
void visit(const TemplateNameId *name) override
|
|
{
|
|
_item = newCompletionItem(name);
|
|
_item->setText(QString::fromUtf8(name->identifier()->chars(), name->identifier()->size()));
|
|
}
|
|
|
|
void visit(const DestructorNameId *name) override
|
|
{ _item = newCompletionItem(name); }
|
|
|
|
void visit(const OperatorNameId *name) override
|
|
{
|
|
_item = newCompletionItem(name);
|
|
_item->setDetail(overview.prettyType(_symbol->type(), name));
|
|
}
|
|
|
|
void visit(const ConversionNameId *name) override
|
|
{ _item = newCompletionItem(name); }
|
|
|
|
void visit(const QualifiedNameId *name) override
|
|
{ _item = newCompletionItem(name->name()); }
|
|
};
|
|
|
|
Class *asClassOrTemplateClassType(FullySpecifiedType ty)
|
|
{
|
|
if (Class *classTy = ty->asClassType())
|
|
return classTy;
|
|
if (Template *templ = ty->asTemplateType()) {
|
|
if (Symbol *decl = templ->declaration())
|
|
return decl->asClass();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
Scope *enclosingNonTemplateScope(Symbol *symbol)
|
|
{
|
|
if (symbol) {
|
|
if (Scope *scope = symbol->enclosingScope()) {
|
|
if (Template *templ = scope->asTemplate())
|
|
return templ->enclosingScope();
|
|
return scope;
|
|
}
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
Function *asFunctionOrTemplateFunctionType(FullySpecifiedType ty)
|
|
{
|
|
if (Function *funTy = ty->asFunctionType())
|
|
return funTy;
|
|
if (Template *templ = ty->asTemplateType()) {
|
|
if (Symbol *decl = templ->declaration())
|
|
return decl->asFunction();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
bool isQPrivateSignal(const Symbol *symbol)
|
|
{
|
|
if (!symbol)
|
|
return false;
|
|
|
|
static Identifier qPrivateSignalIdentifier("QPrivateSignal", 14);
|
|
|
|
if (FullySpecifiedType type = symbol->type()) {
|
|
if (NamedType *namedType = type->asNamedType()) {
|
|
if (const Name *name = namedType->name()) {
|
|
if (name->match(&qPrivateSignalIdentifier))
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
QString createQt4SignalOrSlot(CPlusPlus::Function *function, const Overview &overview)
|
|
{
|
|
QString signature;
|
|
signature += Overview().prettyName(function->name());
|
|
signature += QLatin1Char('(');
|
|
for (unsigned i = 0, to = function->argumentCount(); i < to; ++i) {
|
|
Symbol *arg = function->argumentAt(i);
|
|
if (isQPrivateSignal(arg))
|
|
continue;
|
|
if (i != 0)
|
|
signature += QLatin1Char(',');
|
|
signature += overview.prettyType(arg->type());
|
|
}
|
|
signature += QLatin1Char(')');
|
|
|
|
const QByteArray normalized = QMetaObject::normalizedSignature(signature.toUtf8());
|
|
return QString::fromUtf8(normalized, normalized.size());
|
|
}
|
|
|
|
QString createQt5SignalOrSlot(CPlusPlus::Function *function, const Overview &overview)
|
|
{
|
|
QString text;
|
|
text += overview.prettyName(function->name());
|
|
return text;
|
|
}
|
|
|
|
/*!
|
|
\class BackwardsEater
|
|
\brief Checks strings and expressions before given position.
|
|
|
|
Similar to BackwardsScanner, but also can handle expressions. Ignores whitespace.
|
|
*/
|
|
class BackwardsEater
|
|
{
|
|
public:
|
|
explicit BackwardsEater(const CppCompletionAssistInterface *assistInterface, int position)
|
|
: m_position(position)
|
|
, m_assistInterface(assistInterface)
|
|
{
|
|
}
|
|
|
|
bool isPositionValid() const
|
|
{
|
|
return m_position >= 0;
|
|
}
|
|
|
|
bool eatConnectOpenParenthesis()
|
|
{
|
|
return eatString(QLatin1String("(")) && eatString(QLatin1String("connect"));
|
|
}
|
|
|
|
bool eatExpressionCommaAmpersand()
|
|
{
|
|
return eatString(QLatin1String("&")) && eatString(QLatin1String(",")) && eatExpression();
|
|
}
|
|
|
|
bool eatConnectOpenParenthesisExpressionCommaAmpersandExpressionComma()
|
|
{
|
|
return eatString(QLatin1String(","))
|
|
&& eatExpression()
|
|
&& eatExpressionCommaAmpersand()
|
|
&& eatConnectOpenParenthesis();
|
|
}
|
|
|
|
private:
|
|
bool eatExpression()
|
|
{
|
|
if (!isPositionValid())
|
|
return false;
|
|
|
|
maybeEatWhitespace();
|
|
|
|
QTextCursor cursor(m_assistInterface->textDocument());
|
|
cursor.setPosition(m_position + 1);
|
|
ExpressionUnderCursor expressionUnderCursor(m_assistInterface->languageFeatures());
|
|
const QString expression = expressionUnderCursor(cursor);
|
|
if (expression.isEmpty())
|
|
return false;
|
|
m_position = m_position - expression.length();
|
|
return true;
|
|
}
|
|
|
|
bool eatString(const QString &string)
|
|
{
|
|
if (!isPositionValid())
|
|
return false;
|
|
|
|
if (string.isEmpty())
|
|
return true;
|
|
|
|
maybeEatWhitespace();
|
|
|
|
const int stringLength = string.length();
|
|
const int stringStart = m_position - (stringLength - 1);
|
|
|
|
if (stringStart < 0)
|
|
return false;
|
|
|
|
if (m_assistInterface->textAt(stringStart, stringLength) == string) {
|
|
m_position = stringStart - 1;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void maybeEatWhitespace()
|
|
{
|
|
while (isPositionValid() && m_assistInterface->characterAt(m_position).isSpace())
|
|
--m_position;
|
|
}
|
|
|
|
private:
|
|
int m_position;
|
|
const CppCompletionAssistInterface * const m_assistInterface;
|
|
};
|
|
|
|
bool canCompleteConnectSignalAt2ndArgument(const CppCompletionAssistInterface *assistInterface,
|
|
int startOfExpression)
|
|
{
|
|
BackwardsEater eater(assistInterface, startOfExpression);
|
|
|
|
return eater.isPositionValid()
|
|
&& eater.eatExpressionCommaAmpersand()
|
|
&& eater.eatConnectOpenParenthesis();
|
|
}
|
|
|
|
bool canCompleteConnectSignalAt4thArgument(const CppCompletionAssistInterface *assistInterface,
|
|
int startPosition)
|
|
{
|
|
BackwardsEater eater(assistInterface, startPosition);
|
|
|
|
return eater.isPositionValid()
|
|
&& eater.eatExpressionCommaAmpersand()
|
|
&& eater.eatConnectOpenParenthesisExpressionCommaAmpersandExpressionComma();
|
|
}
|
|
|
|
bool canCompleteClassNameAt2ndOr4thConnectArgument(
|
|
const CppCompletionAssistInterface *assistInterface,
|
|
int startPosition)
|
|
{
|
|
BackwardsEater eater(assistInterface, startPosition);
|
|
|
|
if (!eater.isPositionValid())
|
|
return false;
|
|
|
|
return eater.eatConnectOpenParenthesis()
|
|
|| eater.eatConnectOpenParenthesisExpressionCommaAmpersandExpressionComma();
|
|
}
|
|
|
|
ClassOrNamespace *classOrNamespaceFromLookupItem(const LookupItem &lookupItem,
|
|
const LookupContext &context)
|
|
{
|
|
const Name *name = nullptr;
|
|
|
|
if (Symbol *d = lookupItem.declaration()) {
|
|
if (Class *k = d->asClass())
|
|
name = k->name();
|
|
}
|
|
|
|
if (!name) {
|
|
FullySpecifiedType type = lookupItem.type().simplified();
|
|
|
|
if (PointerType *pointerType = type->asPointerType())
|
|
type = pointerType->elementType().simplified();
|
|
else
|
|
return nullptr; // not a pointer or a reference to a pointer.
|
|
|
|
NamedType *namedType = type->asNamedType();
|
|
if (!namedType) // not a class name.
|
|
return nullptr;
|
|
|
|
name = namedType->name();
|
|
}
|
|
|
|
return name ? context.lookupType(name, lookupItem.scope()) : nullptr;
|
|
}
|
|
|
|
Class *classFromLookupItem(const LookupItem &lookupItem, const LookupContext &context)
|
|
{
|
|
ClassOrNamespace *b = classOrNamespaceFromLookupItem(lookupItem, context);
|
|
if (!b)
|
|
return nullptr;
|
|
|
|
foreach (Symbol *s, b->symbols()) {
|
|
if (Class *klass = s->asClass())
|
|
return klass;
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
const Name *minimalName(Symbol *symbol, Scope *targetScope, const LookupContext &context)
|
|
{
|
|
ClassOrNamespace *target = context.lookupType(targetScope);
|
|
if (!target)
|
|
target = context.globalNamespace();
|
|
return context.minimalName(symbol, target, context.bindings()->control().data());
|
|
}
|
|
|
|
} // Anonymous
|
|
|
|
// ------------------------------------
|
|
// InternalCppCompletionAssistProcessor
|
|
// ------------------------------------
|
|
InternalCppCompletionAssistProcessor::InternalCppCompletionAssistProcessor()
|
|
: m_model(new CppAssistProposalModel)
|
|
{
|
|
}
|
|
|
|
InternalCppCompletionAssistProcessor::~InternalCppCompletionAssistProcessor() = default;
|
|
|
|
IAssistProposal * InternalCppCompletionAssistProcessor::perform(const AssistInterface *interface)
|
|
{
|
|
m_interface.reset(static_cast<const CppCompletionAssistInterface *>(interface));
|
|
|
|
if (interface->reason() != ExplicitlyInvoked && !accepts())
|
|
return nullptr;
|
|
|
|
int index = startCompletionHelper();
|
|
if (index != -1) {
|
|
if (m_hintProposal)
|
|
return m_hintProposal;
|
|
|
|
return createContentProposal();
|
|
}
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
bool InternalCppCompletionAssistProcessor::accepts() const
|
|
{
|
|
const int pos = m_interface->position();
|
|
unsigned token = T_EOF_SYMBOL;
|
|
|
|
const int start = startOfOperator(pos, &token, /*want function call=*/ true);
|
|
if (start != pos) {
|
|
if (token == T_POUND) {
|
|
const int column = pos - m_interface->textDocument()->findBlock(start).position();
|
|
if (column != 1)
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
} else {
|
|
// Trigger completion after n characters of a name have been typed, when not editing an existing name
|
|
QChar characterUnderCursor = m_interface->characterAt(pos);
|
|
|
|
if (!isValidIdentifierChar(characterUnderCursor)) {
|
|
const int startOfName = findStartOfName(pos);
|
|
if (pos - startOfName >= TextEditorSettings::completionSettings().m_characterThreshold) {
|
|
const QChar firstCharacter = m_interface->characterAt(startOfName);
|
|
if (isValidFirstIdentifierChar(firstCharacter)) {
|
|
// Finally check that we're not inside a comment or string (code copied from startOfOperator)
|
|
QTextCursor tc(m_interface->textDocument());
|
|
tc.setPosition(pos);
|
|
|
|
SimpleLexer tokenize;
|
|
tokenize.setLanguageFeatures(m_interface->languageFeatures());
|
|
tokenize.setSkipComments(false);
|
|
|
|
const Tokens &tokens = tokenize(tc.block().text(), BackwardsScanner::previousBlockState(tc.block()));
|
|
const int tokenIdx = SimpleLexer::tokenBefore(tokens, qMax(0, tc.positionInBlock() - 1));
|
|
const Token tk = (tokenIdx == -1) ? Token() : tokens.at(tokenIdx);
|
|
|
|
if (!tk.isComment() && !tk.isLiteral()) {
|
|
return true;
|
|
} else if (tk.isLiteral()
|
|
&& tokens.size() == 3
|
|
&& tokens.at(0).kind() == T_POUND
|
|
&& tokens.at(1).kind() == T_IDENTIFIER) {
|
|
const QString &line = tc.block().text();
|
|
const Token &idToken = tokens.at(1);
|
|
const QStringView &identifier = idToken.utf16charsEnd() > line.size()
|
|
? QStringView(line).mid(
|
|
idToken.utf16charsBegin())
|
|
: QStringView(line)
|
|
.mid(idToken.utf16charsBegin(),
|
|
idToken.utf16chars());
|
|
if (identifier == QLatin1String("include")
|
|
|| identifier == QLatin1String("include_next")
|
|
|| (m_interface->languageFeatures().objCEnabled && identifier == QLatin1String("import"))) {
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
IAssistProposal *InternalCppCompletionAssistProcessor::createContentProposal()
|
|
{
|
|
// Duplicates are kept only if they are snippets.
|
|
QSet<QString> processed;
|
|
auto it = m_completions.begin();
|
|
while (it != m_completions.end()) {
|
|
auto item = static_cast<CppAssistProposalItem *>(*it);
|
|
if (!processed.contains(item->text()) || item->isSnippet()) {
|
|
++it;
|
|
if (!item->isSnippet()) {
|
|
processed.insert(item->text());
|
|
if (!item->isOverloaded()) {
|
|
if (auto symbol = qvariant_cast<Symbol *>(item->data())) {
|
|
if (Function *funTy = symbol->type()->asFunctionType()) {
|
|
if (funTy->hasArguments())
|
|
item->markAsOverloaded();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
delete *it;
|
|
it = m_completions.erase(it);
|
|
}
|
|
}
|
|
|
|
m_model->loadContent(m_completions);
|
|
return new CppAssistProposal(m_positionForProposal, m_model);
|
|
}
|
|
|
|
IAssistProposal *InternalCppCompletionAssistProcessor::createHintProposal(
|
|
QList<Function *> functionSymbols) const
|
|
{
|
|
FunctionHintProposalModelPtr model(new CppFunctionHintModel(functionSymbols,
|
|
m_model->m_typeOfExpression));
|
|
return new FunctionHintProposal(m_positionForProposal, model);
|
|
}
|
|
|
|
int InternalCppCompletionAssistProcessor::startOfOperator(int positionInDocument,
|
|
unsigned *kind,
|
|
bool wantFunctionCall) const
|
|
{
|
|
const QChar ch = m_interface->characterAt(positionInDocument - 1);
|
|
const QChar ch2 = m_interface->characterAt(positionInDocument - 2);
|
|
const QChar ch3 = m_interface->characterAt(positionInDocument - 3);
|
|
|
|
int start = positionInDocument
|
|
- CppCompletionAssistProvider::activationSequenceChar(ch, ch2, ch3, kind,
|
|
wantFunctionCall,
|
|
/*wantQt5SignalSlots*/ true);
|
|
|
|
const auto dotAtIncludeCompletionHandler = [this](int &start, unsigned *kind) {
|
|
start = findStartOfName(start);
|
|
const QChar ch4 = m_interface->characterAt(start - 1);
|
|
const QChar ch5 = m_interface->characterAt(start - 2);
|
|
const QChar ch6 = m_interface->characterAt(start - 3);
|
|
start = start - CppCompletionAssistProvider::activationSequenceChar(
|
|
ch4, ch5, ch6, kind, false, false);
|
|
};
|
|
|
|
CppCompletionAssistProcessor::startOfOperator(m_interface->textDocument(),
|
|
positionInDocument,
|
|
kind,
|
|
start,
|
|
m_interface->languageFeatures(),
|
|
/*adjustForQt5SignalSlotCompletion=*/ true,
|
|
dotAtIncludeCompletionHandler);
|
|
return start;
|
|
}
|
|
|
|
int InternalCppCompletionAssistProcessor::findStartOfName(int pos) const
|
|
{
|
|
if (pos == -1)
|
|
pos = m_interface->position();
|
|
QChar chr;
|
|
|
|
// Skip to the start of a name
|
|
do {
|
|
chr = m_interface->characterAt(--pos);
|
|
} while (CppTools::isValidIdentifierChar(chr));
|
|
|
|
return pos + 1;
|
|
}
|
|
|
|
int InternalCppCompletionAssistProcessor::startCompletionHelper()
|
|
{
|
|
if (m_interface->languageFeatures().objCEnabled) {
|
|
if (tryObjCCompletion())
|
|
return m_positionForProposal;
|
|
}
|
|
|
|
const int startOfName = findStartOfName();
|
|
m_positionForProposal = startOfName;
|
|
m_model->m_completionOperator = T_EOF_SYMBOL;
|
|
|
|
int endOfOperator = m_positionForProposal;
|
|
|
|
// Skip whitespace preceding this position
|
|
while (m_interface->characterAt(endOfOperator - 1).isSpace())
|
|
--endOfOperator;
|
|
|
|
int endOfExpression = startOfOperator(endOfOperator,
|
|
&m_model->m_completionOperator,
|
|
/*want function call =*/ true);
|
|
|
|
if (m_model->m_completionOperator == T_DOXY_COMMENT) {
|
|
for (int i = 1; i < T_DOXY_LAST_TAG; ++i)
|
|
addCompletionItem(QString::fromLatin1(doxygenTagSpell(i)), Icons::keywordIcon());
|
|
return m_positionForProposal;
|
|
}
|
|
|
|
// Pre-processor completion
|
|
if (m_model->m_completionOperator == T_POUND) {
|
|
completePreprocessor();
|
|
m_positionForProposal = startOfName;
|
|
return m_positionForProposal;
|
|
}
|
|
|
|
// Include completion
|
|
if (m_model->m_completionOperator == T_STRING_LITERAL
|
|
|| m_model->m_completionOperator == T_ANGLE_STRING_LITERAL
|
|
|| m_model->m_completionOperator == T_SLASH) {
|
|
|
|
QTextCursor c(m_interface->textDocument());
|
|
c.setPosition(endOfExpression);
|
|
if (completeInclude(c))
|
|
m_positionForProposal = endOfExpression + 1;
|
|
return m_positionForProposal;
|
|
}
|
|
|
|
ExpressionUnderCursor expressionUnderCursor(m_interface->languageFeatures());
|
|
QTextCursor tc(m_interface->textDocument());
|
|
|
|
if (m_model->m_completionOperator == T_COMMA) {
|
|
tc.setPosition(endOfExpression);
|
|
const int start = expressionUnderCursor.startOfFunctionCall(tc);
|
|
if (start == -1) {
|
|
m_model->m_completionOperator = T_EOF_SYMBOL;
|
|
return -1;
|
|
}
|
|
|
|
endOfExpression = start;
|
|
m_positionForProposal = start + 1;
|
|
m_model->m_completionOperator = T_LPAREN;
|
|
}
|
|
|
|
QString expression;
|
|
int startOfExpression = m_interface->position();
|
|
tc.setPosition(endOfExpression);
|
|
|
|
if (m_model->m_completionOperator) {
|
|
expression = expressionUnderCursor(tc);
|
|
startOfExpression = endOfExpression - expression.length();
|
|
|
|
if (m_model->m_completionOperator == T_AMPER) {
|
|
// We expect 'expression' to be either "sender" or "receiver" in
|
|
// "connect(sender, &" or
|
|
// "connect(otherSender, &Foo::signal1, receiver, &"
|
|
const int beforeExpression = startOfExpression - 1;
|
|
if (canCompleteClassNameAt2ndOr4thConnectArgument(m_interface.data(),
|
|
beforeExpression)) {
|
|
m_model->m_completionOperator = CompleteQt5SignalOrSlotClassNameTrigger;
|
|
} else { // Ensure global completion
|
|
startOfExpression = endOfExpression = m_positionForProposal;
|
|
expression.clear();
|
|
m_model->m_completionOperator = T_EOF_SYMBOL;
|
|
}
|
|
} else if (m_model->m_completionOperator == T_COLON_COLON) {
|
|
// We expect 'expression' to be "Foo" in
|
|
// "connect(sender, &Foo::" or
|
|
// "connect(sender, &Bar::signal1, receiver, &Foo::"
|
|
const int beforeExpression = startOfExpression - 1;
|
|
if (canCompleteConnectSignalAt2ndArgument(m_interface.data(), beforeExpression))
|
|
m_model->m_completionOperator = CompleteQt5SignalTrigger;
|
|
else if (canCompleteConnectSignalAt4thArgument(m_interface.data(), beforeExpression))
|
|
m_model->m_completionOperator = CompleteQt5SlotTrigger;
|
|
} else if (m_model->m_completionOperator == T_LPAREN) {
|
|
if (expression.endsWith(QLatin1String("SIGNAL"))) {
|
|
m_model->m_completionOperator = T_SIGNAL;
|
|
} else if (expression.endsWith(QLatin1String("SLOT"))) {
|
|
m_model->m_completionOperator = T_SLOT;
|
|
} else if (m_interface->position() != endOfOperator) {
|
|
// We don't want a function completion when the cursor isn't at the opening brace
|
|
expression.clear();
|
|
m_model->m_completionOperator = T_EOF_SYMBOL;
|
|
m_positionForProposal = startOfName;
|
|
startOfExpression = m_interface->position();
|
|
}
|
|
}
|
|
} else if (expression.isEmpty()) {
|
|
while (startOfExpression > 0 && m_interface->characterAt(startOfExpression).isSpace())
|
|
--startOfExpression;
|
|
}
|
|
|
|
int line = 0, column = 0;
|
|
Utils::Text::convertPosition(m_interface->textDocument(), startOfExpression, &line, &column);
|
|
const QString fileName = m_interface->filePath().toString();
|
|
return startCompletionInternal(fileName, line, column - 1, expression, endOfExpression);
|
|
}
|
|
|
|
bool InternalCppCompletionAssistProcessor::tryObjCCompletion()
|
|
{
|
|
int end = m_interface->position();
|
|
while (m_interface->characterAt(end).isSpace())
|
|
++end;
|
|
if (m_interface->characterAt(end) != QLatin1Char(']'))
|
|
return false;
|
|
|
|
QTextCursor tc(m_interface->textDocument());
|
|
tc.setPosition(end);
|
|
BackwardsScanner tokens(tc, m_interface->languageFeatures());
|
|
if (tokens[tokens.startToken() - 1].isNot(T_RBRACKET))
|
|
return false;
|
|
|
|
const int start = tokens.startOfMatchingBrace(tokens.startToken());
|
|
if (start == tokens.startToken())
|
|
return false;
|
|
|
|
const int startPos = tokens[start].bytesBegin() + tokens.startPosition();
|
|
const QString expr = m_interface->textAt(startPos, m_interface->position() - startPos);
|
|
|
|
Document::Ptr thisDocument = m_interface->snapshot().document(m_interface->filePath());
|
|
if (!thisDocument)
|
|
return false;
|
|
|
|
m_model->m_typeOfExpression->init(thisDocument, m_interface->snapshot());
|
|
|
|
int line = 0, column = 0;
|
|
Utils::Text::convertPosition(m_interface->textDocument(), m_interface->position(), &line,
|
|
&column);
|
|
Scope *scope = thisDocument->scopeAt(line, column - 1);
|
|
if (!scope)
|
|
return false;
|
|
|
|
const QList<LookupItem> items = (*m_model->m_typeOfExpression)(expr.toUtf8(), scope);
|
|
LookupContext lookupContext(thisDocument, m_interface->snapshot());
|
|
|
|
foreach (const LookupItem &item, items) {
|
|
FullySpecifiedType ty = item.type().simplified();
|
|
if (ty->isPointerType()) {
|
|
ty = ty->asPointerType()->elementType().simplified();
|
|
|
|
if (NamedType *namedTy = ty->asNamedType()) {
|
|
ClassOrNamespace *binding = lookupContext.lookupType(namedTy->name(), item.scope());
|
|
completeObjCMsgSend(binding, false);
|
|
}
|
|
} else {
|
|
if (ObjCClass *clazz = ty->asObjCClassType()) {
|
|
ClassOrNamespace *binding = lookupContext.lookupType(clazz->name(), item.scope());
|
|
completeObjCMsgSend(binding, true);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (m_completions.isEmpty())
|
|
return false;
|
|
|
|
m_positionForProposal = m_interface->position();
|
|
return true;
|
|
}
|
|
|
|
namespace {
|
|
enum CompletionOrder {
|
|
// default order is 0
|
|
FunctionArgumentsOrder = 2,
|
|
FunctionLocalsOrder = 2, // includes local types
|
|
PublicClassMemberOrder = 1,
|
|
InjectedClassNameOrder = -1,
|
|
MacrosOrder = -2,
|
|
KeywordsOrder = -2
|
|
};
|
|
}
|
|
|
|
void InternalCppCompletionAssistProcessor::addCompletionItem(const QString &text,
|
|
const QIcon &icon,
|
|
int order,
|
|
const QVariant &data)
|
|
{
|
|
AssistProposalItem *item = new CppAssistProposalItem;
|
|
item->setText(text);
|
|
item->setIcon(icon);
|
|
item->setOrder(order);
|
|
item->setData(data);
|
|
m_completions.append(item);
|
|
}
|
|
|
|
void InternalCppCompletionAssistProcessor::addCompletionItem(Symbol *symbol, int order)
|
|
{
|
|
ConvertToCompletionItem toCompletionItem;
|
|
AssistProposalItem *item = toCompletionItem(symbol);
|
|
if (item) {
|
|
item->setIcon(Icons::iconForSymbol(symbol));
|
|
item->setOrder(order);
|
|
m_completions.append(item);
|
|
}
|
|
}
|
|
|
|
void InternalCppCompletionAssistProcessor::completeObjCMsgSend(ClassOrNamespace *binding,
|
|
bool staticClassAccess)
|
|
{
|
|
QList<Scope*> memberScopes;
|
|
foreach (Symbol *s, binding->symbols()) {
|
|
if (ObjCClass *c = s->asObjCClass())
|
|
memberScopes.append(c);
|
|
}
|
|
|
|
foreach (Scope *scope, memberScopes) {
|
|
for (int i = 0; i < scope->memberCount(); ++i) {
|
|
Symbol *symbol = scope->memberAt(i);
|
|
|
|
if (ObjCMethod *method = symbol->type()->asObjCMethodType()) {
|
|
if (method->isStatic() == staticClassAccess) {
|
|
Overview oo;
|
|
const SelectorNameId *selectorName =
|
|
method->name()->asSelectorNameId();
|
|
QString text;
|
|
QString data;
|
|
if (selectorName->hasArguments()) {
|
|
for (int i = 0; i < selectorName->nameCount(); ++i) {
|
|
if (i > 0)
|
|
text += QLatin1Char(' ');
|
|
Symbol *arg = method->argumentAt(i);
|
|
text += QString::fromUtf8(selectorName->nameAt(i)->identifier()->chars());
|
|
text += QLatin1Char(':');
|
|
text += Snippet::kVariableDelimiter;
|
|
text += QLatin1Char('(');
|
|
text += oo.prettyType(arg->type());
|
|
text += QLatin1Char(')');
|
|
text += oo.prettyName(arg->name());
|
|
text += Snippet::kVariableDelimiter;
|
|
}
|
|
} else {
|
|
text = QString::fromUtf8(selectorName->identifier()->chars());
|
|
}
|
|
data = text;
|
|
|
|
if (!text.isEmpty())
|
|
addCompletionItem(text, QIcon(), 0, QVariant::fromValue(data));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool InternalCppCompletionAssistProcessor::completeInclude(const QTextCursor &cursor)
|
|
{
|
|
QString directoryPrefix;
|
|
if (m_model->m_completionOperator == T_SLASH) {
|
|
QTextCursor c = cursor;
|
|
c.movePosition(QTextCursor::StartOfLine, QTextCursor::KeepAnchor);
|
|
QString sel = c.selectedText();
|
|
int startCharPos = sel.indexOf(QLatin1Char('"'));
|
|
if (startCharPos == -1) {
|
|
startCharPos = sel.indexOf(QLatin1Char('<'));
|
|
m_model->m_completionOperator = T_ANGLE_STRING_LITERAL;
|
|
} else {
|
|
m_model->m_completionOperator = T_STRING_LITERAL;
|
|
}
|
|
if (startCharPos != -1)
|
|
directoryPrefix = sel.mid(startCharPos + 1, sel.length() - 1);
|
|
}
|
|
|
|
// Make completion for all relevant includes
|
|
ProjectExplorer::HeaderPaths headerPaths = m_interface->headerPaths();
|
|
const ProjectExplorer::HeaderPath currentFilePath(m_interface->filePath().toFileInfo().path(),
|
|
ProjectExplorer::HeaderPathType::User);
|
|
if (!headerPaths.contains(currentFilePath))
|
|
headerPaths.append(currentFilePath);
|
|
|
|
const QStringList suffixes = Utils::mimeTypeForName(QLatin1String("text/x-c++hdr")).suffixes();
|
|
|
|
foreach (const ProjectExplorer::HeaderPath &headerPath, headerPaths) {
|
|
QString realPath = headerPath.path;
|
|
if (!directoryPrefix.isEmpty()) {
|
|
realPath += QLatin1Char('/');
|
|
realPath += directoryPrefix;
|
|
if (headerPath.type == ProjectExplorer::HeaderPathType::Framework)
|
|
realPath += QLatin1String(".framework/Headers");
|
|
}
|
|
completeInclude(realPath, suffixes);
|
|
}
|
|
|
|
return !m_completions.isEmpty();
|
|
}
|
|
|
|
void InternalCppCompletionAssistProcessor::completeInclude(const QString &realPath,
|
|
const QStringList &suffixes)
|
|
{
|
|
QDirIterator i(realPath, QDir::Files | QDir::Dirs | QDir::NoDotAndDotDot);
|
|
while (i.hasNext()) {
|
|
const QString fileName = i.next();
|
|
const QFileInfo fileInfo = i.fileInfo();
|
|
const QString suffix = fileInfo.suffix();
|
|
if (suffix.isEmpty() || suffixes.contains(suffix)) {
|
|
QString text = fileName.mid(realPath.length() + 1);
|
|
if (fileInfo.isDir())
|
|
text += QLatin1Char('/');
|
|
addCompletionItem(text, Icons::keywordIcon());
|
|
}
|
|
}
|
|
}
|
|
|
|
void InternalCppCompletionAssistProcessor::completePreprocessor()
|
|
{
|
|
foreach (const QString &preprocessorCompletion, m_preprocessorCompletions)
|
|
addCompletionItem(preprocessorCompletion);
|
|
|
|
if (objcKeywordsWanted())
|
|
addCompletionItem(QLatin1String("import"));
|
|
}
|
|
|
|
bool InternalCppCompletionAssistProcessor::objcKeywordsWanted() const
|
|
{
|
|
if (!m_interface->languageFeatures().objCEnabled)
|
|
return false;
|
|
|
|
const QString fileName = m_interface->filePath().toString();
|
|
|
|
const Utils::MimeType mt = Utils::mimeTypeForFile(fileName);
|
|
return mt.matchesName(QLatin1String(CppTools::Constants::OBJECTIVE_C_SOURCE_MIMETYPE))
|
|
|| mt.matchesName(QLatin1String(CppTools::Constants::OBJECTIVE_CPP_SOURCE_MIMETYPE));
|
|
}
|
|
|
|
int InternalCppCompletionAssistProcessor::startCompletionInternal(const QString &fileName,
|
|
int line,
|
|
int positionInBlock,
|
|
const QString &expr,
|
|
int endOfExpression)
|
|
{
|
|
QString expression = expr.trimmed();
|
|
|
|
Document::Ptr thisDocument = m_interface->snapshot().document(fileName);
|
|
if (!thisDocument)
|
|
return -1;
|
|
|
|
m_model->m_typeOfExpression->init(thisDocument, m_interface->snapshot());
|
|
|
|
Scope *scope = thisDocument->scopeAt(line, positionInBlock);
|
|
QTC_ASSERT(scope, return -1);
|
|
|
|
if (expression.isEmpty()) {
|
|
if (m_model->m_completionOperator == T_EOF_SYMBOL || m_model->m_completionOperator == T_COLON_COLON) {
|
|
(void) (*m_model->m_typeOfExpression)(expression.toUtf8(), scope);
|
|
return globalCompletion(scope) ? m_positionForProposal : -1;
|
|
}
|
|
|
|
if (m_model->m_completionOperator == T_SIGNAL || m_model->m_completionOperator == T_SLOT) {
|
|
// Apply signal/slot completion on 'this'
|
|
expression = QLatin1String("this");
|
|
}
|
|
}
|
|
|
|
QByteArray utf8Exp = expression.toUtf8();
|
|
QList<LookupItem> results =
|
|
(*m_model->m_typeOfExpression)(utf8Exp, scope, TypeOfExpression::Preprocess);
|
|
|
|
if (results.isEmpty()) {
|
|
if (m_model->m_completionOperator == T_SIGNAL || m_model->m_completionOperator == T_SLOT) {
|
|
if (!(expression.isEmpty() || expression == QLatin1String("this"))) {
|
|
expression = QLatin1String("this");
|
|
results = (*m_model->m_typeOfExpression)(utf8Exp, scope);
|
|
}
|
|
|
|
if (results.isEmpty())
|
|
return -1;
|
|
|
|
} else if (m_model->m_completionOperator == T_LPAREN) {
|
|
// Find the expression that precedes the current name
|
|
int index = endOfExpression;
|
|
while (m_interface->characterAt(index - 1).isSpace())
|
|
--index;
|
|
index = findStartOfName(index);
|
|
|
|
QTextCursor tc(m_interface->textDocument());
|
|
tc.setPosition(index);
|
|
|
|
ExpressionUnderCursor expressionUnderCursor(m_interface->languageFeatures());
|
|
const QString baseExpression = expressionUnderCursor(tc);
|
|
|
|
// Resolve the type of this expression
|
|
const QList<LookupItem> results =
|
|
(*m_model->m_typeOfExpression)(baseExpression.toUtf8(), scope,
|
|
TypeOfExpression::Preprocess);
|
|
|
|
// If it's a class, add completions for the constructors
|
|
foreach (const LookupItem &result, results) {
|
|
if (result.type()->isClassType()) {
|
|
if (completeConstructorOrFunction(results, endOfExpression, true))
|
|
return m_positionForProposal;
|
|
|
|
break;
|
|
}
|
|
}
|
|
return -1;
|
|
|
|
} else if (m_model->m_completionOperator == CompleteQt5SignalOrSlotClassNameTrigger) {
|
|
// Fallback to global completion if we could not lookup sender/receiver object.
|
|
return globalCompletion(scope) ? m_positionForProposal : -1;
|
|
|
|
} else {
|
|
return -1; // nothing to do.
|
|
}
|
|
}
|
|
|
|
switch (m_model->m_completionOperator) {
|
|
case T_LPAREN:
|
|
if (completeConstructorOrFunction(results, endOfExpression, false))
|
|
return m_positionForProposal;
|
|
break;
|
|
|
|
case T_DOT:
|
|
case T_ARROW:
|
|
if (completeMember(results))
|
|
return m_positionForProposal;
|
|
break;
|
|
|
|
case T_COLON_COLON:
|
|
if (completeScope(results))
|
|
return m_positionForProposal;
|
|
break;
|
|
|
|
case T_SIGNAL:
|
|
if (completeQtMethod(results, CompleteQt4Signals))
|
|
return m_positionForProposal;
|
|
break;
|
|
|
|
case T_SLOT:
|
|
if (completeQtMethod(results, CompleteQt4Slots))
|
|
return m_positionForProposal;
|
|
break;
|
|
|
|
case CompleteQt5SignalOrSlotClassNameTrigger:
|
|
if (completeQtMethodClassName(results, scope) || globalCompletion(scope))
|
|
return m_positionForProposal;
|
|
break;
|
|
|
|
case CompleteQt5SignalTrigger:
|
|
// Fallback to scope completion if "X::" is a namespace and not a class.
|
|
if (completeQtMethod(results, CompleteQt5Signals) || completeScope(results))
|
|
return m_positionForProposal;
|
|
break;
|
|
|
|
case CompleteQt5SlotTrigger:
|
|
// Fallback to scope completion if "X::" is a namespace and not a class.
|
|
if (completeQtMethod(results, CompleteQt5Slots) || completeScope(results))
|
|
return m_positionForProposal;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
} // end of switch
|
|
|
|
// nothing to do.
|
|
return -1;
|
|
}
|
|
|
|
bool InternalCppCompletionAssistProcessor::globalCompletion(Scope *currentScope)
|
|
{
|
|
const LookupContext &context = m_model->m_typeOfExpression->context();
|
|
|
|
if (m_model->m_completionOperator == T_COLON_COLON) {
|
|
completeNamespace(context.globalNamespace());
|
|
return !m_completions.isEmpty();
|
|
}
|
|
|
|
QList<ClassOrNamespace *> usingBindings;
|
|
ClassOrNamespace *currentBinding = nullptr;
|
|
|
|
for (Scope *scope = currentScope; scope; scope = scope->enclosingScope()) {
|
|
if (Block *block = scope->asBlock()) {
|
|
if (ClassOrNamespace *binding = context.lookupType(scope)) {
|
|
for (int i = 0; i < scope->memberCount(); ++i) {
|
|
Symbol *member = scope->memberAt(i);
|
|
if (member->isEnum()) {
|
|
if (ClassOrNamespace *b = binding->findBlock(block))
|
|
completeNamespace(b);
|
|
}
|
|
if (!member->name())
|
|
continue;
|
|
if (UsingNamespaceDirective *u = member->asUsingNamespaceDirective()) {
|
|
if (ClassOrNamespace *b = binding->lookupType(u->name()))
|
|
usingBindings.append(b);
|
|
} else if (Class *c = member->asClass()) {
|
|
if (c->name()->isAnonymousNameId()) {
|
|
if (ClassOrNamespace *b = binding->findBlock(block))
|
|
completeClass(b);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else if (scope->isFunction() || scope->isClass() || scope->isNamespace()) {
|
|
currentBinding = context.lookupType(scope);
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (Scope *scope = currentScope; scope; scope = scope->enclosingScope()) {
|
|
if (scope->isBlock()) {
|
|
for (int i = 0; i < scope->memberCount(); ++i)
|
|
addCompletionItem(scope->memberAt(i), FunctionLocalsOrder);
|
|
} else if (Function *fun = scope->asFunction()) {
|
|
for (int i = 0, argc = fun->argumentCount(); i < argc; ++i)
|
|
addCompletionItem(fun->argumentAt(i), FunctionArgumentsOrder);
|
|
} else if (Template *templ = scope->asTemplate()) {
|
|
for (int i = 0, argc = templ->templateParameterCount(); i < argc; ++i)
|
|
addCompletionItem(templ->templateParameterAt(i), FunctionArgumentsOrder);
|
|
break;
|
|
}
|
|
}
|
|
|
|
QSet<ClassOrNamespace *> processed;
|
|
for (; currentBinding; currentBinding = currentBinding->parent()) {
|
|
if (processed.contains(currentBinding))
|
|
break;
|
|
processed.insert(currentBinding);
|
|
|
|
foreach (ClassOrNamespace* u, currentBinding->usings())
|
|
usingBindings.append(u);
|
|
|
|
const QList<Symbol *> symbols = currentBinding->symbols();
|
|
|
|
if (!symbols.isEmpty()) {
|
|
if (symbols.first()->isClass())
|
|
completeClass(currentBinding);
|
|
else
|
|
completeNamespace(currentBinding);
|
|
}
|
|
}
|
|
|
|
foreach (ClassOrNamespace *b, usingBindings)
|
|
completeNamespace(b);
|
|
|
|
addKeywords();
|
|
addMacros(CppModelManager::configurationFileName(), context.snapshot());
|
|
addMacros(context.thisDocument()->fileName(), context.snapshot());
|
|
addSnippets();
|
|
return !m_completions.isEmpty();
|
|
}
|
|
|
|
void InternalCppCompletionAssistProcessor::addKeywordCompletionItem(const QString &text)
|
|
{
|
|
auto item = new CppAssistProposalItem;
|
|
item->setText(text);
|
|
item->setIcon(Icons::keywordIcon());
|
|
item->setOrder(KeywordsOrder);
|
|
item->setIsKeyword(true);
|
|
m_completions.append(item);
|
|
}
|
|
|
|
bool InternalCppCompletionAssistProcessor::completeMember(const QList<LookupItem> &baseResults)
|
|
{
|
|
const LookupContext &context = m_model->m_typeOfExpression->context();
|
|
|
|
if (baseResults.isEmpty())
|
|
return false;
|
|
|
|
ResolveExpression resolveExpression(context);
|
|
|
|
bool *replaceDotForArrow = nullptr;
|
|
if (!m_interface->languageFeatures().objCEnabled)
|
|
replaceDotForArrow = &m_model->m_replaceDotForArrow;
|
|
|
|
if (ClassOrNamespace *binding =
|
|
resolveExpression.baseExpression(baseResults,
|
|
m_model->m_completionOperator,
|
|
replaceDotForArrow)) {
|
|
if (binding)
|
|
completeClass(binding, /*static lookup = */ true);
|
|
|
|
return !m_completions.isEmpty();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool InternalCppCompletionAssistProcessor::completeScope(const QList<LookupItem> &results)
|
|
{
|
|
const LookupContext &context = m_model->m_typeOfExpression->context();
|
|
if (results.isEmpty())
|
|
return false;
|
|
|
|
foreach (const LookupItem &result, results) {
|
|
FullySpecifiedType ty = result.type();
|
|
Scope *scope = result.scope();
|
|
|
|
if (NamedType *namedTy = ty->asNamedType()) {
|
|
if (ClassOrNamespace *b = context.lookupType(namedTy->name(), scope)) {
|
|
completeClass(b);
|
|
break;
|
|
}
|
|
|
|
} else if (Class *classTy = ty->asClassType()) {
|
|
if (ClassOrNamespace *b = context.lookupType(classTy)) {
|
|
completeClass(b);
|
|
break;
|
|
}
|
|
|
|
// it can be class defined inside a block
|
|
if (classTy->enclosingScope()->isBlock()) {
|
|
if (ClassOrNamespace *b = context.lookupType(classTy->name(), classTy->enclosingScope())) {
|
|
completeClass(b);
|
|
break;
|
|
}
|
|
}
|
|
|
|
} else if (Namespace *nsTy = ty->asNamespaceType()) {
|
|
if (ClassOrNamespace *b = context.lookupType(nsTy)) {
|
|
completeNamespace(b);
|
|
break;
|
|
}
|
|
|
|
} else if (Template *templ = ty->asTemplateType()) {
|
|
if (!result.binding())
|
|
continue;
|
|
if (ClassOrNamespace *b = result.binding()->lookupType(templ->name())) {
|
|
completeClass(b);
|
|
break;
|
|
}
|
|
|
|
} else if (Enum *e = ty->asEnumType()) {
|
|
// it can be class defined inside a block
|
|
if (e->enclosingScope()->isBlock()) {
|
|
if (ClassOrNamespace *b = context.lookupType(e)) {
|
|
Block *block = e->enclosingScope()->asBlock();
|
|
if (ClassOrNamespace *bb = b->findBlock(block)) {
|
|
completeNamespace(bb);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ClassOrNamespace *b = context.lookupType(e)) {
|
|
completeNamespace(b);
|
|
break;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
return !m_completions.isEmpty();
|
|
}
|
|
|
|
void InternalCppCompletionAssistProcessor::completeNamespace(ClassOrNamespace *b)
|
|
{
|
|
QSet<ClassOrNamespace *> bindingsVisited;
|
|
QList<ClassOrNamespace *> bindingsToVisit;
|
|
bindingsToVisit.append(b);
|
|
|
|
while (!bindingsToVisit.isEmpty()) {
|
|
ClassOrNamespace *binding = bindingsToVisit.takeFirst();
|
|
if (!binding || bindingsVisited.contains(binding))
|
|
continue;
|
|
|
|
bindingsVisited.insert(binding);
|
|
bindingsToVisit += binding->usings();
|
|
|
|
QList<Scope *> scopesToVisit;
|
|
QSet<Scope *> scopesVisited;
|
|
|
|
foreach (Symbol *bb, binding->symbols()) {
|
|
if (Scope *scope = bb->asScope())
|
|
scopesToVisit.append(scope);
|
|
}
|
|
|
|
foreach (Enum *e, binding->unscopedEnums())
|
|
scopesToVisit.append(e);
|
|
|
|
while (!scopesToVisit.isEmpty()) {
|
|
Scope *scope = scopesToVisit.takeFirst();
|
|
if (!scope || scopesVisited.contains(scope))
|
|
continue;
|
|
|
|
scopesVisited.insert(scope);
|
|
|
|
for (Scope::iterator it = scope->memberBegin(); it != scope->memberEnd(); ++it) {
|
|
Symbol *member = *it;
|
|
addCompletionItem(member);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void InternalCppCompletionAssistProcessor::completeClass(ClassOrNamespace *b, bool staticLookup)
|
|
{
|
|
QSet<ClassOrNamespace *> bindingsVisited;
|
|
QList<ClassOrNamespace *> bindingsToVisit;
|
|
bindingsToVisit.append(b);
|
|
|
|
while (!bindingsToVisit.isEmpty()) {
|
|
ClassOrNamespace *binding = bindingsToVisit.takeFirst();
|
|
if (!binding || bindingsVisited.contains(binding))
|
|
continue;
|
|
|
|
bindingsVisited.insert(binding);
|
|
bindingsToVisit += binding->usings();
|
|
|
|
QList<Scope *> scopesToVisit;
|
|
QSet<Scope *> scopesVisited;
|
|
|
|
foreach (Symbol *bb, binding->symbols()) {
|
|
if (Class *k = bb->asClass())
|
|
scopesToVisit.append(k);
|
|
else if (Block *b = bb->asBlock())
|
|
scopesToVisit.append(b);
|
|
}
|
|
|
|
foreach (Enum *e, binding->unscopedEnums())
|
|
scopesToVisit.append(e);
|
|
|
|
while (!scopesToVisit.isEmpty()) {
|
|
Scope *scope = scopesToVisit.takeFirst();
|
|
if (!scope || scopesVisited.contains(scope))
|
|
continue;
|
|
|
|
scopesVisited.insert(scope);
|
|
|
|
if (staticLookup)
|
|
addCompletionItem(scope, InjectedClassNameOrder); // add a completion item for the injected class name.
|
|
|
|
addClassMembersToCompletion(scope, staticLookup);
|
|
}
|
|
}
|
|
}
|
|
|
|
void InternalCppCompletionAssistProcessor::addClassMembersToCompletion(Scope *scope,
|
|
bool staticLookup)
|
|
{
|
|
if (!scope)
|
|
return;
|
|
|
|
std::set<Class *> nestedAnonymouses;
|
|
|
|
for (Scope::iterator it = scope->memberBegin(); it != scope->memberEnd(); ++it) {
|
|
Symbol *member = *it;
|
|
if (member->isFriend()
|
|
|| member->isQtPropertyDeclaration()
|
|
|| member->isQtEnum()) {
|
|
continue;
|
|
} else if (!staticLookup && (member->isTypedef() ||
|
|
member->isEnum() ||
|
|
member->isClass())) {
|
|
continue;
|
|
} else if (member->isClass() && member->name()->isAnonymousNameId()) {
|
|
nestedAnonymouses.insert(member->asClass());
|
|
} else if (member->isDeclaration()) {
|
|
Class *declTypeAsClass = member->asDeclaration()->type()->asClassType();
|
|
if (declTypeAsClass && declTypeAsClass->name()->isAnonymousNameId())
|
|
nestedAnonymouses.erase(declTypeAsClass);
|
|
}
|
|
|
|
if (member->isPublic())
|
|
addCompletionItem(member, PublicClassMemberOrder);
|
|
else
|
|
addCompletionItem(member);
|
|
}
|
|
for (Class *klass : nestedAnonymouses)
|
|
addClassMembersToCompletion(klass, staticLookup);
|
|
}
|
|
|
|
bool InternalCppCompletionAssistProcessor::completeQtMethod(const QList<LookupItem> &results,
|
|
CompleteQtMethodMode type)
|
|
{
|
|
if (results.isEmpty())
|
|
return false;
|
|
|
|
const LookupContext &context = m_model->m_typeOfExpression->context();
|
|
|
|
ConvertToCompletionItem toCompletionItem;
|
|
Overview o;
|
|
o.showReturnTypes = false;
|
|
o.showArgumentNames = false;
|
|
o.showFunctionSignatures = true;
|
|
|
|
QSet<QString> signatures;
|
|
foreach (const LookupItem &lookupItem, results) {
|
|
ClassOrNamespace *b = classOrNamespaceFromLookupItem(lookupItem, context);
|
|
if (!b)
|
|
continue;
|
|
|
|
QList<ClassOrNamespace *>todo;
|
|
QSet<ClassOrNamespace *> processed;
|
|
QList<Scope *> scopes;
|
|
todo.append(b);
|
|
while (!todo.isEmpty()) {
|
|
ClassOrNamespace *binding = todo.takeLast();
|
|
if (!processed.contains(binding)) {
|
|
processed.insert(binding);
|
|
|
|
foreach (Symbol *s, binding->symbols())
|
|
if (Class *clazz = s->asClass())
|
|
scopes.append(clazz);
|
|
|
|
todo.append(binding->usings());
|
|
}
|
|
}
|
|
|
|
const bool wantSignals = type == CompleteQt4Signals || type == CompleteQt5Signals;
|
|
const bool wantQt5SignalOrSlot = type == CompleteQt5Signals || type == CompleteQt5Slots;
|
|
foreach (Scope *scope, scopes) {
|
|
Class *klass = scope->asClass();
|
|
if (!klass)
|
|
continue;
|
|
|
|
for (int i = 0; i < scope->memberCount(); ++i) {
|
|
Symbol *member = scope->memberAt(i);
|
|
Function *fun = member->type()->asFunctionType();
|
|
if (!fun || fun->isGenerated())
|
|
continue;
|
|
if (wantSignals && !fun->isSignal())
|
|
continue;
|
|
else if (!wantSignals && type == CompleteQt4Slots && !fun->isSlot())
|
|
continue;
|
|
|
|
int count = fun->argumentCount();
|
|
while (true) {
|
|
const QString completionText = wantQt5SignalOrSlot
|
|
? createQt5SignalOrSlot(fun, o)
|
|
: createQt4SignalOrSlot(fun, o);
|
|
|
|
if (!signatures.contains(completionText)) {
|
|
AssistProposalItem *ci = toCompletionItem(fun);
|
|
if (!ci)
|
|
break;
|
|
signatures.insert(completionText);
|
|
ci->setText(completionText); // fix the completion item.
|
|
ci->setIcon(Icons::iconForSymbol(fun));
|
|
if (wantQt5SignalOrSlot && fun->isSlot())
|
|
ci->setOrder(1);
|
|
m_completions.append(ci);
|
|
}
|
|
|
|
if (count && fun->argumentAt(count - 1)->asArgument()->hasInitializer())
|
|
--count;
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return !m_completions.isEmpty();
|
|
}
|
|
|
|
bool InternalCppCompletionAssistProcessor::completeQtMethodClassName(
|
|
const QList<LookupItem> &results, Scope *cursorScope)
|
|
{
|
|
QTC_ASSERT(cursorScope, return false);
|
|
|
|
if (results.isEmpty())
|
|
return false;
|
|
|
|
const LookupContext &context = m_model->m_typeOfExpression->context();
|
|
const QIcon classIcon = Utils::CodeModelIcon::iconForType(Utils::CodeModelIcon::Class);
|
|
Overview overview;
|
|
|
|
foreach (const LookupItem &lookupItem, results) {
|
|
Class *klass = classFromLookupItem(lookupItem, context);
|
|
if (!klass)
|
|
continue;
|
|
const Name *name = minimalName(klass, cursorScope, context);
|
|
QTC_ASSERT(name, continue);
|
|
|
|
addCompletionItem(overview.prettyName(name), classIcon);
|
|
break;
|
|
}
|
|
|
|
return !m_completions.isEmpty();
|
|
}
|
|
|
|
void InternalCppCompletionAssistProcessor::addKeywords()
|
|
{
|
|
int keywordLimit = T_FIRST_OBJC_AT_KEYWORD;
|
|
if (objcKeywordsWanted())
|
|
keywordLimit = T_LAST_OBJC_AT_KEYWORD + 1;
|
|
|
|
// keyword completion items.
|
|
for (int i = T_FIRST_KEYWORD; i < keywordLimit; ++i)
|
|
addKeywordCompletionItem(QLatin1String(Token::name(i)));
|
|
|
|
// primitive type completion items.
|
|
for (int i = T_FIRST_PRIMITIVE; i <= T_LAST_PRIMITIVE; ++i)
|
|
addKeywordCompletionItem(QLatin1String(Token::name(i)));
|
|
|
|
// "Identifiers with special meaning"
|
|
if (m_interface->languageFeatures().cxx11Enabled) {
|
|
addKeywordCompletionItem(QLatin1String("override"));
|
|
addKeywordCompletionItem(QLatin1String("final"));
|
|
}
|
|
}
|
|
|
|
void InternalCppCompletionAssistProcessor::addMacros(const QString &fileName,
|
|
const Snapshot &snapshot)
|
|
{
|
|
QSet<QString> processed;
|
|
QSet<QString> definedMacros;
|
|
|
|
addMacros_helper(snapshot, fileName, &processed, &definedMacros);
|
|
|
|
foreach (const QString ¯oName, definedMacros)
|
|
addCompletionItem(macroName, Icons::macroIcon(), MacrosOrder);
|
|
}
|
|
|
|
void InternalCppCompletionAssistProcessor::addMacros_helper(const Snapshot &snapshot,
|
|
const QString &fileName,
|
|
QSet<QString> *processed,
|
|
QSet<QString> *definedMacros)
|
|
{
|
|
Document::Ptr doc = snapshot.document(fileName);
|
|
|
|
if (!doc || processed->contains(doc->fileName()))
|
|
return;
|
|
|
|
processed->insert(doc->fileName());
|
|
|
|
foreach (const Document::Include &i, doc->resolvedIncludes())
|
|
addMacros_helper(snapshot, i.resolvedFileName(), processed, definedMacros);
|
|
|
|
foreach (const CPlusPlus::Macro ¯o, doc->definedMacros()) {
|
|
const QString macroName = macro.nameToQString();
|
|
if (!macro.isHidden())
|
|
definedMacros->insert(macroName);
|
|
else
|
|
definedMacros->remove(macroName);
|
|
}
|
|
}
|
|
|
|
bool InternalCppCompletionAssistProcessor::completeConstructorOrFunction(const QList<LookupItem> &results,
|
|
int endOfExpression,
|
|
bool toolTipOnly)
|
|
{
|
|
const LookupContext &context = m_model->m_typeOfExpression->context();
|
|
QList<Function *> functions;
|
|
|
|
foreach (const LookupItem &result, results) {
|
|
FullySpecifiedType exprTy = result.type().simplified();
|
|
|
|
if (Class *klass = asClassOrTemplateClassType(exprTy)) {
|
|
const Name *className = klass->name();
|
|
if (!className)
|
|
continue; // nothing to do for anonymous classes.
|
|
|
|
for (int i = 0; i < klass->memberCount(); ++i) {
|
|
Symbol *member = klass->memberAt(i);
|
|
const Name *memberName = member->name();
|
|
|
|
if (!memberName)
|
|
continue; // skip anonymous member.
|
|
|
|
else if (memberName->isQualifiedNameId())
|
|
continue; // skip
|
|
|
|
if (Function *funTy = member->type()->asFunctionType()) {
|
|
if (memberName->match(className)) {
|
|
// it's a ctor.
|
|
functions.append(funTy);
|
|
}
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (functions.isEmpty()) {
|
|
foreach (const LookupItem &result, results) {
|
|
FullySpecifiedType ty = result.type().simplified();
|
|
|
|
if (Function *fun = asFunctionOrTemplateFunctionType(ty)) {
|
|
|
|
if (!fun->name()) {
|
|
continue;
|
|
} else if (!functions.isEmpty()
|
|
&& enclosingNonTemplateScope(functions.first())
|
|
!= enclosingNonTemplateScope(fun)) {
|
|
continue; // skip fun, it's an hidden declaration.
|
|
}
|
|
|
|
bool newOverload = true;
|
|
|
|
foreach (Function *f, functions) {
|
|
if (fun->match(f)) {
|
|
newOverload = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (newOverload)
|
|
functions.append(fun);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (functions.isEmpty()) {
|
|
const Name *functionCallOp = context.bindings()->control()->operatorNameId(OperatorNameId::FunctionCallOp);
|
|
|
|
foreach (const LookupItem &result, results) {
|
|
FullySpecifiedType ty = result.type().simplified();
|
|
Scope *scope = result.scope();
|
|
|
|
if (NamedType *namedTy = ty->asNamedType()) {
|
|
if (ClassOrNamespace *b = context.lookupType(namedTy->name(), scope)) {
|
|
foreach (const LookupItem &r, b->lookup(functionCallOp)) {
|
|
Symbol *overload = r.declaration();
|
|
FullySpecifiedType overloadTy = overload->type().simplified();
|
|
|
|
if (Function *funTy = overloadTy->asFunctionType())
|
|
functions.append(funTy);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// There are two different kinds of completion we want to provide:
|
|
// 1. If this is a function call, we want to pop up a tooltip that shows the user
|
|
// the possible overloads with their argument types and names.
|
|
// 2. If this is a function definition, we want to offer autocompletion of
|
|
// the function signature.
|
|
|
|
// check if function signature autocompletion is appropriate
|
|
// Also check if the function name is a destructor name.
|
|
bool isDestructor = false;
|
|
if (!functions.isEmpty() && !toolTipOnly) {
|
|
|
|
// function definitions will only happen in class or namespace scope,
|
|
// so get the current location's enclosing scope.
|
|
|
|
// get current line and column
|
|
int lineSigned = 0, columnSigned = 0;
|
|
Utils::Text::convertPosition(m_interface->textDocument(), m_interface->position(),
|
|
&lineSigned, &columnSigned);
|
|
unsigned line = lineSigned, column = columnSigned - 1;
|
|
|
|
// find a scope that encloses the current location, starting from the lastVisibileSymbol
|
|
// and moving outwards
|
|
|
|
Scope *sc = context.thisDocument()->scopeAt(line, column);
|
|
|
|
if (sc && (sc->isClass() || sc->isNamespace())) {
|
|
// It may still be a function call. If the whole line parses as a function
|
|
// declaration, we should be certain that it isn't.
|
|
bool autocompleteSignature = false;
|
|
|
|
QTextCursor tc(m_interface->textDocument());
|
|
tc.setPosition(endOfExpression);
|
|
BackwardsScanner bs(tc, m_interface->languageFeatures());
|
|
const int startToken = bs.startToken();
|
|
int lineStartToken = bs.startOfLine(startToken);
|
|
// make sure the required tokens are actually available
|
|
bs.LA(startToken - lineStartToken);
|
|
QString possibleDecl = bs.mid(lineStartToken).trimmed().append(QLatin1String("();"));
|
|
|
|
Document::Ptr doc = Document::create(QLatin1String("<completion>"));
|
|
doc->setUtf8Source(possibleDecl.toUtf8());
|
|
if (doc->parse(Document::ParseDeclaration)) {
|
|
doc->check();
|
|
if (SimpleDeclarationAST *sd = doc->translationUnit()->ast()->asSimpleDeclaration()) {
|
|
if (sd->declarator_list && sd->declarator_list->value->postfix_declarator_list
|
|
&& sd->declarator_list->value->postfix_declarator_list->value->asFunctionDeclarator()) {
|
|
|
|
autocompleteSignature = true;
|
|
|
|
CoreDeclaratorAST *coreDecl = sd->declarator_list->value->core_declarator;
|
|
if (coreDecl && coreDecl->asDeclaratorId() && coreDecl->asDeclaratorId()->name) {
|
|
NameAST *declName = coreDecl->asDeclaratorId()->name;
|
|
if (declName->asDestructorName()) {
|
|
isDestructor = true;
|
|
} else if (QualifiedNameAST *qName = declName->asQualifiedName()) {
|
|
if (qName->unqualified_name && qName->unqualified_name->asDestructorName())
|
|
isDestructor = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (autocompleteSignature && !isDestructor) {
|
|
// set up for rewriting function types with minimally qualified names
|
|
// to do it correctly we'd need the declaration's context and scope, but
|
|
// that'd be too expensive to get here. instead, we just minimize locally
|
|
SubstitutionEnvironment env;
|
|
env.setContext(context);
|
|
env.switchScope(sc);
|
|
ClassOrNamespace *targetCoN = context.lookupType(sc);
|
|
if (!targetCoN)
|
|
targetCoN = context.globalNamespace();
|
|
UseMinimalNames q(targetCoN);
|
|
env.enter(&q);
|
|
Control *control = context.bindings()->control().data();
|
|
|
|
// set up signature autocompletion
|
|
foreach (Function *f, functions) {
|
|
Overview overview;
|
|
overview.showArgumentNames = true;
|
|
overview.showDefaultArguments = false;
|
|
|
|
const FullySpecifiedType localTy = rewriteType(f->type(), &env, control);
|
|
|
|
// gets: "parameter list) cv-spec",
|
|
const QString completion = overview.prettyType(localTy).mid(1);
|
|
if (completion == QLatin1String(")"))
|
|
continue;
|
|
|
|
addCompletionItem(completion, QIcon(), 0,
|
|
QVariant::fromValue(CompleteFunctionDeclaration(f)));
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!functions.empty() && !isDestructor) {
|
|
m_hintProposal = createHintProposal(functions);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void CppCompletionAssistInterface::getCppSpecifics() const
|
|
{
|
|
if (m_gotCppSpecifics)
|
|
return;
|
|
m_gotCppSpecifics = true;
|
|
|
|
if (m_parser) {
|
|
m_parser->update({CppTools::CppModelManager::instance()->workingCopy(),
|
|
nullptr,
|
|
Language::Cxx,
|
|
false});
|
|
m_snapshot = m_parser->snapshot();
|
|
m_headerPaths = m_parser->headerPaths();
|
|
}
|
|
}
|