forked from qt-creator/qt-creator
ab40e9c78e
With the completion now in a separate thread this should no longer be necessary. Reviewed-by: Roberto Raggi
1885 lines
65 KiB
C++
1885 lines
65 KiB
C++
/**************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (info@qt.nokia.com)
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**
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**
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** GNU Lesser General Public License Usage
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**
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this file.
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** Please review the following information to ensure the GNU Lesser General
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** Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** Other Usage
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**
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at info@qt.nokia.com.
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**
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**************************************************************************/
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#include "cppmodelmanager.h"
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#include "cppcompletionassist.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 <Control.h>
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#include <AST.h>
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#include <ASTVisitor.h>
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#include <CoreTypes.h>
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#include <Literals.h>
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#include <Names.h>
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#include <NameVisitor.h>
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#include <Symbols.h>
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#include <SymbolVisitor.h>
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#include <Scope.h>
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#include <TranslationUnit.h>
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#include <cplusplus/ResolveExpression.h>
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#include <cplusplus/MatchingText.h>
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#include <cplusplus/Overview.h>
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#include <cplusplus/ExpressionUnderCursor.h>
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#include <cplusplus/BackwardsScanner.h>
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#include <cplusplus/LookupContext.h>
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#include <coreplugin/ifile.h>
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#include <coreplugin/icore.h>
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#include <coreplugin/mimedatabase.h>
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#include <cppeditor/cppeditorconstants.h>
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#include <texteditor/codeassist/basicproposalitem.h>
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#include <texteditor/codeassist/basicproposalitemlistmodel.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/convenience.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 <QtCore/QLatin1String>
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#include <QtGui/QTextCursor>
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#include <QtGui/QTextDocument>
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#include <QtGui/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 Internal;
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using namespace TextEditor;
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namespace {
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int activationSequenceChar(const QChar &ch,
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const QChar &ch2,
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const QChar &ch3,
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unsigned *kind,
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bool wantFunctionCall)
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{
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int referencePosition = 0;
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int completionKind = T_EOF_SYMBOL;
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switch (ch.toLatin1()) {
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case '.':
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if (ch2 != QLatin1Char('.')) {
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completionKind = T_DOT;
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referencePosition = 1;
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}
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break;
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case ',':
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completionKind = T_COMMA;
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referencePosition = 1;
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break;
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case '(':
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if (wantFunctionCall) {
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completionKind = T_LPAREN;
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referencePosition = 1;
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}
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break;
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case ':':
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if (ch3 != QLatin1Char(':') && ch2 == QLatin1Char(':')) {
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completionKind = T_COLON_COLON;
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referencePosition = 2;
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}
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break;
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case '>':
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if (ch2 == QLatin1Char('-')) {
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completionKind = T_ARROW;
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referencePosition = 2;
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}
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break;
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case '*':
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if (ch2 == QLatin1Char('.')) {
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completionKind = T_DOT_STAR;
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referencePosition = 2;
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} else if (ch3 == QLatin1Char('-') && ch2 == QLatin1Char('>')) {
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completionKind = T_ARROW_STAR;
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referencePosition = 3;
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}
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break;
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case '\\':
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case '@':
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if (ch2.isNull() || ch2.isSpace()) {
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completionKind = T_DOXY_COMMENT;
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referencePosition = 1;
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}
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break;
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case '<':
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completionKind = T_ANGLE_STRING_LITERAL;
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referencePosition = 1;
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break;
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case '"':
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completionKind = T_STRING_LITERAL;
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referencePosition = 1;
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break;
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case '/':
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completionKind = T_SLASH;
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referencePosition = 1;
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break;
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case '#':
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completionKind = T_POUND;
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referencePosition = 1;
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break;
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}
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if (kind)
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*kind = completionKind;
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return referencePosition;
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}
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} // Anonymous
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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 = 0)
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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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// CppAssistProposalModel
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// ----------------------
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class CppAssistProposalModel : public TextEditor::BasicProposalItemListModel
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{
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public:
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CppAssistProposalModel()
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: TextEditor::BasicProposalItemListModel()
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, m_sortable(false)
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, m_completionOperator(T_EOF_SYMBOL)
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, m_replaceDotForArrow(false)
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{}
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virtual bool isSortable() const { return m_sortable; }
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virtual IAssistProposalItem *proposalItem(int index) const;
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bool m_sortable;
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unsigned m_completionOperator;
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bool m_replaceDotForArrow;
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Snapshot m_snapshot;
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};
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// ---------------------
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// CppAssistProposalItem
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// ---------------------
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class CppAssistProposalItem : public TextEditor::BasicProposalItem
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{
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public:
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CppAssistProposalItem() : m_isOverloaded(false) {}
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virtual bool prematurelyApplies(const QChar &c) const;
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virtual void applyContextualContent(TextEditor::BaseTextEditor *editor,
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int basePosition) const;
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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 keepSnapshot(const Snapshot &snapshot) { m_snapshot = snapshot; }
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private:
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bool m_isOverloaded;
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unsigned m_completionOperator;
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mutable QChar m_typedChar;
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Snapshot m_snapshot;
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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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IAssistProposalItem *CppAssistProposalModel::proposalItem(int index) const
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{
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BasicProposalItem *item =
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static_cast<BasicProposalItem *>(BasicProposalItemListModel::proposalItem(index));
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if (!item->data().canConvert<QString>()) {
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CppAssistProposalItem *cppItem = static_cast<CppAssistProposalItem *>(item);
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cppItem->keepCompletionOperator(m_completionOperator);
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cppItem->keepSnapshot(m_snapshot);
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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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void CppAssistProposalItem::applyContextualContent(TextEditor::BaseTextEditor *editor,
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int basePosition) const
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{
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Symbol *symbol = 0;
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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 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 =
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TextEditorSettings::instance()->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() && (function->unqualifiedName() && !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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}
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#endif
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} else if (! 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 = editor->characterAt(editor->position());
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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 = editor->characterAt(editor->position() + 1);
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if (MatchingText::shouldInsertMatchingText(lookAhead)) {
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extraChars += QLatin1Char(')');
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--cursorOffset;
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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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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 = editor->characterAt(editor->position() + 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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int length = editor->position() - basePosition + extraLength;
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editor->setCursorPosition(basePosition);
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editor->replace(length, toInsert);
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if (cursorOffset)
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editor->setCursorPosition(editor->position() + cursorOffset);
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}
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// --------------------
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// CppFunctionHintModel
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// --------------------
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class CppFunctionHintModel : public TextEditor::IFunctionHintProposalModel
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{
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public:
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CppFunctionHintModel(QList<Function *> functionSymbols)
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: m_functionSymbols(functionSymbols)
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, m_currentArg(-1)
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{}
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virtual void reset() {}
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virtual int size() const { return m_functionSymbols.size(); }
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virtual QString text(int index) const;
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virtual int activeArgument(const QString &prefix) const;
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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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};
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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.setShowReturnTypes(true);
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overview.setShowArgumentNames(true);
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overview.setMarkedArgument(m_currentArg + 1);
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Function *f = m_functionSymbols.at(index);
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const QString prettyMethod = overview(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 += Qt::escape(prettyMethod.left(begin));
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hintText += "<b>";
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hintText += Qt::escape(prettyMethod.mid(begin, end - begin));
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hintText += "</b>";
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hintText += Qt::escape(prettyMethod.mid(end));
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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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QList<Token> 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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// ---------------------------
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// CppCompletionAssistProvider
|
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// ---------------------------
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bool CppCompletionAssistProvider::supportsEditor(const QString &editorId) const
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{
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return editorId == QLatin1String(CppEditor::Constants::CPPEDITOR_ID);
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}
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int CppCompletionAssistProvider::activationCharSequenceLength() const
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{
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return 3;
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}
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bool CppCompletionAssistProvider::isActivationCharSequence(const QString &sequence) const
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{
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const QChar &ch = sequence.at(2);
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const QChar &ch2 = sequence.at(1);
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const QChar &ch3 = sequence.at(0);
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if (activationSequenceChar(ch, ch2, ch3, 0, true) != 0)
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return true;
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return false;
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}
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IAssistProcessor *CppCompletionAssistProvider::createProcessor() const
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{
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return new CppCompletionAssistProcessor;
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}
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|
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// -----------------
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// CppAssistProposal
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// -----------------
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class CppAssistProposal : public TextEditor::GenericProposal
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{
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public:
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CppAssistProposal(int cursorPos, TextEditor::IGenericProposalModel *model)
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: TextEditor::GenericProposal(cursorPos, model)
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, m_replaceDotForArrow(static_cast<CppAssistProposalModel *>(model)->m_replaceDotForArrow)
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{}
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|
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virtual bool isCorrective() const { return m_replaceDotForArrow; }
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virtual void makeCorrection(BaseTextEditor *editor);
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|
|
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private:
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bool m_replaceDotForArrow;
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};
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|
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void CppAssistProposal::makeCorrection(BaseTextEditor *editor)
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{
|
|
editor->setCursorPosition(basePosition() - 1);
|
|
editor->replace(1, QLatin1String("->"));
|
|
moveBasePosition(1);
|
|
}
|
|
|
|
namespace {
|
|
|
|
class ConvertToCompletionItem: protected NameVisitor
|
|
{
|
|
// The completion item.
|
|
BasicProposalItem *_item;
|
|
|
|
// The current symbol.
|
|
Symbol *_symbol;
|
|
|
|
// The pretty printer.
|
|
Overview overview;
|
|
|
|
public:
|
|
ConvertToCompletionItem()
|
|
: _item(0)
|
|
, _symbol(0)
|
|
{ }
|
|
|
|
BasicProposalItem *operator()(Symbol *symbol)
|
|
{
|
|
if (! symbol || ! symbol->name() || symbol->name()->isQualifiedNameId())
|
|
return 0;
|
|
|
|
BasicProposalItem *previousItem = switchCompletionItem(0);
|
|
Symbol *previousSymbol = switchSymbol(symbol);
|
|
accept(symbol->unqualifiedName());
|
|
if (_item)
|
|
_item->setData(QVariant::fromValue(symbol));
|
|
(void) switchSymbol(previousSymbol);
|
|
return switchCompletionItem(previousItem);
|
|
}
|
|
|
|
protected:
|
|
Symbol *switchSymbol(Symbol *symbol)
|
|
{
|
|
Symbol *previousSymbol = _symbol;
|
|
_symbol = symbol;
|
|
return previousSymbol;
|
|
}
|
|
|
|
BasicProposalItem *switchCompletionItem(BasicProposalItem *item)
|
|
{
|
|
BasicProposalItem *previousItem = _item;
|
|
_item = item;
|
|
return previousItem;
|
|
}
|
|
|
|
BasicProposalItem *newCompletionItem(const Name *name)
|
|
{
|
|
BasicProposalItem *item = new CppAssistProposalItem;
|
|
item->setText(overview.prettyName(name));
|
|
return item;
|
|
}
|
|
|
|
virtual void visit(const Identifier *name)
|
|
{ _item = newCompletionItem(name); }
|
|
|
|
virtual void visit(const TemplateNameId *name)
|
|
{
|
|
_item = newCompletionItem(name);
|
|
_item->setText(QLatin1String(name->identifier()->chars()));
|
|
}
|
|
|
|
virtual void visit(const DestructorNameId *name)
|
|
{ _item = newCompletionItem(name); }
|
|
|
|
virtual void visit(const OperatorNameId *name)
|
|
{ _item = newCompletionItem(name); }
|
|
|
|
virtual void visit(const ConversionNameId *name)
|
|
{ _item = newCompletionItem(name); }
|
|
|
|
virtual void visit(const QualifiedNameId *name)
|
|
{ _item = newCompletionItem(name->name()); }
|
|
};
|
|
|
|
Class *asClassOrTemplateClassType(FullySpecifiedType ty)
|
|
{
|
|
if (Class *classTy = ty->asClassType())
|
|
return classTy;
|
|
else if (Template *templ = ty->asTemplateType()) {
|
|
if (Symbol *decl = templ->declaration())
|
|
return decl->asClass();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
Scope *enclosingNonTemplateScope(Symbol *symbol)
|
|
{
|
|
if (symbol) {
|
|
if (Scope *scope = symbol->enclosingScope()) {
|
|
if (Template *templ = scope->asTemplate())
|
|
return templ->enclosingScope();
|
|
return scope;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
Function *asFunctionOrTemplateFunctionType(FullySpecifiedType ty)
|
|
{
|
|
if (Function *funTy = ty->asFunctionType())
|
|
return funTy;
|
|
else if (Template *templ = ty->asTemplateType()) {
|
|
if (Symbol *decl = templ->declaration())
|
|
return decl->asFunction();
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
} // Anonymous
|
|
|
|
// ----------------------------
|
|
// CppCompletionAssistProcessor
|
|
// ----------------------------
|
|
CppCompletionAssistProcessor::CppCompletionAssistProcessor()
|
|
: m_startPosition(-1)
|
|
, m_objcEnabled(true)
|
|
, m_snippetCollector(CppEditor::Constants::CPP_SNIPPETS_GROUP_ID,
|
|
QIcon(QLatin1String(":/texteditor/images/snippet.png")))
|
|
, preprocessorCompletions(QStringList()
|
|
<< QLatin1String("define")
|
|
<< QLatin1String("error")
|
|
<< QLatin1String("include")
|
|
<< QLatin1String("line")
|
|
<< QLatin1String("pragma")
|
|
<< QLatin1String("undef")
|
|
<< QLatin1String("if")
|
|
<< QLatin1String("ifdef")
|
|
<< QLatin1String("ifndef")
|
|
<< QLatin1String("elif")
|
|
<< QLatin1String("else")
|
|
<< QLatin1String("endif"))
|
|
, m_model(new CppAssistProposalModel)
|
|
, m_hintProposal(0)
|
|
{}
|
|
|
|
CppCompletionAssistProcessor::~CppCompletionAssistProcessor()
|
|
{}
|
|
|
|
IAssistProposal * CppCompletionAssistProcessor::perform(const IAssistInterface *interface)
|
|
{
|
|
m_interface.reset(static_cast<const CppCompletionAssistInterface *>(interface));
|
|
|
|
if (interface->reason() != ExplicitlyInvoked && !accepts())
|
|
return 0;
|
|
|
|
m_model->m_snapshot = m_interface->snapshot();
|
|
|
|
int index = startCompletionHelper();
|
|
if (index != -1) {
|
|
if (m_hintProposal)
|
|
return m_hintProposal;
|
|
|
|
if (interface->reason() == IdleEditor) {
|
|
const int pos = m_interface->position();
|
|
const QChar ch = m_interface->characterAt(pos);
|
|
if (! (ch.isLetterOrNumber() || ch == QLatin1Char('_'))) {
|
|
for (int i = pos - 1;; --i) {
|
|
const QChar ch = m_interface->characterAt(i);
|
|
if (ch.isLetterOrNumber() || ch == QLatin1Char('_')) {
|
|
const QString wordUnderCursor = m_interface->textAt(i, pos - i);
|
|
if (wordUnderCursor.at(0).isLetter() || wordUnderCursor.at(0) == QLatin1Char('_')) {
|
|
foreach (const BasicProposalItem *item, m_completions) {
|
|
if (item->text() == wordUnderCursor)
|
|
return 0;
|
|
}
|
|
} else {
|
|
return 0;
|
|
}
|
|
} else
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (m_model->m_completionOperator != T_EOF_SYMBOL)
|
|
m_model->m_sortable = true;
|
|
else
|
|
m_model->m_sortable = false;
|
|
return createContentProposal();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
bool CppCompletionAssistProcessor::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->document()->findBlock(start).position();
|
|
if (column != 1)
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
} else {
|
|
// Trigger completion after three characters of a name have been typed, when not editing an existing name
|
|
QChar characterUnderCursor = m_interface->characterAt(pos);
|
|
if (!characterUnderCursor.isLetterOrNumber()) {
|
|
const int startOfName = findStartOfName(pos);
|
|
if (pos - startOfName >= 3) {
|
|
const QChar firstCharacter = m_interface->characterAt(startOfName);
|
|
if (firstCharacter.isLetter() || firstCharacter == QLatin1Char('_')) {
|
|
// Finally check that we're not inside a comment or string (code copied from startOfOperator)
|
|
QTextCursor tc(m_interface->document());
|
|
tc.setPosition(pos);
|
|
|
|
SimpleLexer tokenize;
|
|
tokenize.setQtMocRunEnabled(true);
|
|
tokenize.setObjCEnabled(true);
|
|
tokenize.setSkipComments(false);
|
|
const QList<Token> &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;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
IAssistProposal *CppCompletionAssistProcessor::createContentProposal()
|
|
{
|
|
// Duplicates are kept only if they are snippets.
|
|
QSet<QString> processed;
|
|
QList<BasicProposalItem *>::iterator it = m_completions.begin();
|
|
while (it != m_completions.end()) {
|
|
CppAssistProposalItem *item = static_cast<CppAssistProposalItem *>(*it);
|
|
if (!processed.contains(item->text()) || item->data().canConvert<QString>()) {
|
|
++it;
|
|
if (!item->data().canConvert<QString>()) {
|
|
processed.insert(item->text());
|
|
if (!item->isOverloaded()) {
|
|
if (Symbol *symbol = qvariant_cast<Symbol *>(item->data())) {
|
|
if (Function *funTy = symbol->type()->asFunctionType()) {
|
|
if (funTy->hasArguments())
|
|
item->markAsOverloaded();
|
|
}
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
it = m_completions.erase(it);
|
|
}
|
|
}
|
|
|
|
m_model->loadContent(m_completions);
|
|
return new CppAssistProposal(m_startPosition, m_model.take());
|
|
}
|
|
|
|
IAssistProposal *CppCompletionAssistProcessor::createHintProposal(
|
|
QList<CPlusPlus::Function *> functionSymbols) const
|
|
{
|
|
IFunctionHintProposalModel *model = new CppFunctionHintModel(functionSymbols);
|
|
IAssistProposal *proposal = new FunctionHintProposal(m_startPosition, model);
|
|
return proposal;
|
|
}
|
|
|
|
int CppCompletionAssistProcessor::startOfOperator(int pos,
|
|
unsigned *kind,
|
|
bool wantFunctionCall) const
|
|
{
|
|
const QChar ch = pos > -1 ? m_interface->characterAt(pos - 1) : QChar();
|
|
const QChar ch2 = pos > 0 ? m_interface->characterAt(pos - 2) : QChar();
|
|
const QChar ch3 = pos > 1 ? m_interface->characterAt(pos - 3) : QChar();
|
|
|
|
int start = pos - activationSequenceChar(ch, ch2, ch3, kind, wantFunctionCall);
|
|
if (start != pos) {
|
|
QTextCursor tc(m_interface->document());
|
|
tc.setPosition(pos);
|
|
|
|
// Include completion: make sure the quote character is the first one on the line
|
|
if (*kind == T_STRING_LITERAL) {
|
|
QTextCursor s = tc;
|
|
s.movePosition(QTextCursor::StartOfLine, QTextCursor::KeepAnchor);
|
|
QString sel = s.selectedText();
|
|
if (sel.indexOf(QLatin1Char('"')) < sel.length() - 1) {
|
|
*kind = T_EOF_SYMBOL;
|
|
start = pos;
|
|
}
|
|
}
|
|
|
|
if (*kind == T_COMMA) {
|
|
ExpressionUnderCursor expressionUnderCursor;
|
|
if (expressionUnderCursor.startOfFunctionCall(tc) == -1) {
|
|
*kind = T_EOF_SYMBOL;
|
|
start = pos;
|
|
}
|
|
}
|
|
|
|
SimpleLexer tokenize;
|
|
tokenize.setQtMocRunEnabled(true);
|
|
tokenize.setObjCEnabled(true);
|
|
tokenize.setSkipComments(false);
|
|
const QList<Token> &tokens = tokenize(tc.block().text(), BackwardsScanner::previousBlockState(tc.block()));
|
|
const int tokenIdx = SimpleLexer::tokenBefore(tokens, qMax(0, tc.positionInBlock() - 1)); // get the token at the left of the cursor
|
|
const Token tk = (tokenIdx == -1) ? Token() : tokens.at(tokenIdx);
|
|
|
|
if (*kind == T_DOXY_COMMENT && !(tk.is(T_DOXY_COMMENT) || tk.is(T_CPP_DOXY_COMMENT))) {
|
|
*kind = T_EOF_SYMBOL;
|
|
start = pos;
|
|
}
|
|
// Don't complete in comments or strings, but still check for include completion
|
|
else if (tk.is(T_COMMENT) || tk.is(T_CPP_COMMENT) ||
|
|
(tk.isLiteral() && (*kind != T_STRING_LITERAL
|
|
&& *kind != T_ANGLE_STRING_LITERAL
|
|
&& *kind != T_SLASH))) {
|
|
*kind = T_EOF_SYMBOL;
|
|
start = pos;
|
|
}
|
|
// Include completion: can be triggered by slash, but only in a string
|
|
else if (*kind == T_SLASH && (tk.isNot(T_STRING_LITERAL) && tk.isNot(T_ANGLE_STRING_LITERAL))) {
|
|
*kind = T_EOF_SYMBOL;
|
|
start = pos;
|
|
}
|
|
else if (*kind == T_LPAREN) {
|
|
if (tokenIdx > 0) {
|
|
const Token &previousToken = tokens.at(tokenIdx - 1); // look at the token at the left of T_LPAREN
|
|
switch (previousToken.kind()) {
|
|
case T_IDENTIFIER:
|
|
case T_GREATER:
|
|
case T_SIGNAL:
|
|
case T_SLOT:
|
|
break; // good
|
|
|
|
default:
|
|
// that's a bad token :)
|
|
*kind = T_EOF_SYMBOL;
|
|
start = pos;
|
|
}
|
|
}
|
|
}
|
|
// Check for include preprocessor directive
|
|
else if (*kind == T_STRING_LITERAL || *kind == T_ANGLE_STRING_LITERAL || *kind == T_SLASH) {
|
|
bool include = false;
|
|
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))) {
|
|
const Token &directiveToken = tokens.at(1);
|
|
QString directive = tc.block().text().mid(directiveToken.begin(),
|
|
directiveToken.length());
|
|
if (directive == QLatin1String("include") ||
|
|
directive == QLatin1String("include_next") ||
|
|
directive == QLatin1String("import")) {
|
|
include = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!include) {
|
|
*kind = T_EOF_SYMBOL;
|
|
start = pos;
|
|
}
|
|
}
|
|
}
|
|
|
|
return start;
|
|
}
|
|
|
|
int CppCompletionAssistProcessor::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 (chr.isLetterOrNumber() || chr == QLatin1Char('_'));
|
|
|
|
return pos + 1;
|
|
}
|
|
|
|
int CppCompletionAssistProcessor::startCompletionHelper()
|
|
{
|
|
if (m_objcEnabled) {
|
|
if (tryObjCCompletion())
|
|
return m_startPosition;
|
|
}
|
|
|
|
const int startOfName = findStartOfName();
|
|
m_startPosition = startOfName;
|
|
m_model->m_completionOperator = T_EOF_SYMBOL;
|
|
|
|
int endOfOperator = m_startPosition;
|
|
|
|
// 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);
|
|
|
|
const Core::IFile *file = m_interface->file();
|
|
QString fileName = file->fileName();
|
|
|
|
if (m_model->m_completionOperator == T_DOXY_COMMENT) {
|
|
for (int i = 1; i < T_DOXY_LAST_TAG; ++i)
|
|
addCompletionItem(QString::fromLatin1(doxygenTagSpell(i)), m_icons.keywordIcon());
|
|
return m_startPosition;
|
|
}
|
|
|
|
// Pre-processor completion
|
|
if (m_model->m_completionOperator == T_POUND) {
|
|
completePreprocessor();
|
|
m_startPosition = startOfName;
|
|
return m_startPosition;
|
|
}
|
|
|
|
// 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->document());
|
|
c.setPosition(endOfExpression);
|
|
if (completeInclude(c))
|
|
m_startPosition = startOfName;
|
|
return m_startPosition;
|
|
}
|
|
|
|
ExpressionUnderCursor expressionUnderCursor;
|
|
QTextCursor tc(m_interface->document());
|
|
|
|
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_startPosition = 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_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_startPosition = startOfName;
|
|
startOfExpression = m_interface->position();
|
|
}
|
|
}
|
|
} else if (expression.isEmpty()) {
|
|
while (startOfExpression > 0 && m_interface->characterAt(startOfExpression).isSpace())
|
|
--startOfExpression;
|
|
}
|
|
|
|
int line = 0, column = 0;
|
|
Convenience::convertPosition(m_interface->document(), startOfExpression, &line, &column);
|
|
return startCompletionInternal(fileName, line, column, expression, endOfExpression);
|
|
}
|
|
|
|
bool CppCompletionAssistProcessor::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->document());
|
|
tc.setPosition(end);
|
|
BackwardsScanner tokens(tc);
|
|
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].begin() + tokens.startPosition();
|
|
const QString expr = m_interface->textAt(startPos, m_interface->position() - startPos);
|
|
|
|
Document::Ptr thisDocument = m_model->m_snapshot.document(m_interface->file()->fileName());
|
|
if (! thisDocument)
|
|
return false;
|
|
|
|
typeOfExpression.init(thisDocument, m_model->m_snapshot);
|
|
int line = 0, column = 0;
|
|
Convenience::convertPosition(m_interface->document(), m_interface->position(), &line, &column);
|
|
Scope *scope = thisDocument->scopeAt(line, column);
|
|
if (!scope)
|
|
return false;
|
|
|
|
const QList<LookupItem> items = typeOfExpression(expr, scope);
|
|
LookupContext lookupContext(thisDocument, m_model->m_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_startPosition = m_interface->position();
|
|
return true;
|
|
}
|
|
|
|
void CppCompletionAssistProcessor::addCompletionItem(const QString &text,
|
|
const QIcon &icon,
|
|
int order,
|
|
const QVariant &data)
|
|
{
|
|
BasicProposalItem *item = new CppAssistProposalItem;
|
|
item->setText(text);
|
|
item->setIcon(icon);
|
|
item->setOrder(order);
|
|
item->setData(data);
|
|
m_completions.append(item);
|
|
}
|
|
|
|
void CppCompletionAssistProcessor::addCompletionItem(CPlusPlus::Symbol *symbol)
|
|
{
|
|
ConvertToCompletionItem toCompletionItem;
|
|
BasicProposalItem *item = toCompletionItem(symbol);
|
|
if (item) {
|
|
item->setIcon(m_icons.iconForSymbol(symbol));
|
|
m_completions.append(item);
|
|
}
|
|
}
|
|
|
|
void CppCompletionAssistProcessor::completeObjCMsgSend(CPlusPlus::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 (unsigned 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 (unsigned i = 0; i < selectorName->nameCount(); ++i) {
|
|
if (i > 0)
|
|
text += QLatin1Char(' ');
|
|
Symbol *arg = method->argumentAt(i);
|
|
text += selectorName->nameAt(i)->identifier()->chars();
|
|
text += QLatin1Char(':');
|
|
text += TextEditor::Snippet::kVariableDelimiter;
|
|
text += QLatin1Char('(');
|
|
text += oo(arg->type());
|
|
text += QLatin1Char(')');
|
|
text += oo(arg->name());
|
|
text += TextEditor::Snippet::kVariableDelimiter;
|
|
}
|
|
} else {
|
|
text = selectorName->identifier()->chars();
|
|
}
|
|
data = text;
|
|
|
|
if (!text.isEmpty())
|
|
addCompletionItem(text, QIcon(), 0, QVariant::fromValue(data));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool CppCompletionAssistProcessor::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
|
|
QStringList includePaths = m_interface->includePaths();
|
|
const QString ¤tFilePath = QFileInfo(m_interface->file()->fileName()).path();
|
|
if (!includePaths.contains(currentFilePath))
|
|
includePaths.append(currentFilePath);
|
|
|
|
const Core::MimeType mimeType =
|
|
Core::ICore::instance()->mimeDatabase()->findByType(QLatin1String("text/x-c++hdr"));
|
|
const QStringList suffixes = mimeType.suffixes();
|
|
|
|
foreach (const QString &includePath, includePaths) {
|
|
QString realPath = includePath;
|
|
if (!directoryPrefix.isEmpty()) {
|
|
realPath += QLatin1Char('/');
|
|
realPath += directoryPrefix;
|
|
}
|
|
completeInclude(realPath, suffixes);
|
|
}
|
|
|
|
foreach (const QString &frameworkPath, m_interface->frameworkPaths()) {
|
|
QString realPath = frameworkPath;
|
|
if (!directoryPrefix.isEmpty()) {
|
|
realPath += QLatin1Char('/');
|
|
realPath += directoryPrefix;
|
|
realPath += QLatin1String(".framework/Headers");
|
|
}
|
|
completeInclude(realPath, suffixes);
|
|
}
|
|
|
|
return !m_completions.isEmpty();
|
|
}
|
|
|
|
void CppCompletionAssistProcessor::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, m_icons.keywordIcon());
|
|
}
|
|
}
|
|
}
|
|
|
|
void CppCompletionAssistProcessor::completePreprocessor()
|
|
{
|
|
foreach (const QString &preprocessorCompletion, preprocessorCompletions)
|
|
addCompletionItem(preprocessorCompletion);
|
|
|
|
if (objcKeywordsWanted())
|
|
addCompletionItem(QLatin1String("import"));
|
|
}
|
|
|
|
bool CppCompletionAssistProcessor::objcKeywordsWanted() const
|
|
{
|
|
if (!m_objcEnabled)
|
|
return false;
|
|
|
|
const Core::IFile *file = m_interface->file();
|
|
QString fileName = file->fileName();
|
|
|
|
const Core::MimeDatabase *mdb = Core::ICore::instance()->mimeDatabase();
|
|
return mdb->findByFile(fileName).type() == CppTools::Constants::OBJECTIVE_CPP_SOURCE_MIMETYPE;
|
|
}
|
|
|
|
int CppCompletionAssistProcessor::startCompletionInternal(const QString fileName,
|
|
unsigned line, unsigned column,
|
|
const QString &expr,
|
|
int endOfExpression)
|
|
{
|
|
QString expression = expr.trimmed();
|
|
|
|
Document::Ptr thisDocument = m_model->m_snapshot.document(fileName);
|
|
if (! thisDocument)
|
|
return -1;
|
|
|
|
typeOfExpression.init(thisDocument, m_model->m_snapshot);
|
|
|
|
Scope *scope = thisDocument->scopeAt(line, column);
|
|
Q_ASSERT(scope != 0);
|
|
|
|
if (expression.isEmpty()) {
|
|
if (m_model->m_completionOperator == T_EOF_SYMBOL || m_model->m_completionOperator == T_COLON_COLON) {
|
|
(void) typeOfExpression(expression, scope);
|
|
globalCompletion(scope);
|
|
if (m_completions.isEmpty())
|
|
return -1;
|
|
return m_startPosition;
|
|
}
|
|
|
|
else if (m_model->m_completionOperator == T_SIGNAL || m_model->m_completionOperator == T_SLOT) {
|
|
// Apply signal/slot completion on 'this'
|
|
expression = QLatin1String("this");
|
|
}
|
|
}
|
|
|
|
QList<LookupItem> results = typeOfExpression(expression, 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 = typeOfExpression(expression, 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->document());
|
|
tc.setPosition(index);
|
|
|
|
ExpressionUnderCursor expressionUnderCursor;
|
|
const QString baseExpression = expressionUnderCursor(tc);
|
|
|
|
// Resolve the type of this expression
|
|
const QList<LookupItem> results =
|
|
typeOfExpression(baseExpression, 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_startPosition;
|
|
|
|
break;
|
|
}
|
|
}
|
|
return -1;
|
|
|
|
} else {
|
|
// nothing to do.
|
|
return -1;
|
|
|
|
}
|
|
}
|
|
|
|
switch (m_model->m_completionOperator) {
|
|
case T_LPAREN:
|
|
if (completeConstructorOrFunction(results, endOfExpression, false))
|
|
return m_startPosition;
|
|
break;
|
|
|
|
case T_DOT:
|
|
case T_ARROW:
|
|
if (completeMember(results))
|
|
return m_startPosition;
|
|
break;
|
|
|
|
case T_COLON_COLON:
|
|
if (completeScope(results))
|
|
return m_startPosition;
|
|
break;
|
|
|
|
case T_SIGNAL:
|
|
if (completeSignal(results))
|
|
return m_startPosition;
|
|
break;
|
|
|
|
case T_SLOT:
|
|
if (completeSlot(results))
|
|
return m_startPosition;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
} // end of switch
|
|
|
|
// nothing to do.
|
|
return -1;
|
|
}
|
|
|
|
void CppCompletionAssistProcessor::globalCompletion(CPlusPlus::Scope *currentScope)
|
|
{
|
|
const LookupContext &context = typeOfExpression.context();
|
|
|
|
if (m_model->m_completionOperator == T_COLON_COLON) {
|
|
completeNamespace(context.globalNamespace());
|
|
return;
|
|
}
|
|
|
|
QList<ClassOrNamespace *> usingBindings;
|
|
ClassOrNamespace *currentBinding = 0;
|
|
|
|
for (Scope *scope = currentScope; scope; scope = scope->enclosingScope()) {
|
|
if (scope->isBlock()) {
|
|
if (ClassOrNamespace *binding = context.lookupType(scope)) {
|
|
for (unsigned i = 0; i < scope->memberCount(); ++i) {
|
|
Symbol *member = scope->memberAt(i);
|
|
if (! member->name())
|
|
continue;
|
|
else if (UsingNamespaceDirective *u = member->asUsingNamespaceDirective()) {
|
|
if (ClassOrNamespace *b = binding->lookupType(u->name()))
|
|
usingBindings.append(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 (unsigned i = 0; i < scope->memberCount(); ++i) {
|
|
addCompletionItem(scope->memberAt(i));
|
|
}
|
|
} else if (scope->isFunction()) {
|
|
Function *fun = scope->asFunction();
|
|
for (unsigned i = 0; i < fun->argumentCount(); ++i) {
|
|
addCompletionItem(fun->argumentAt(i));
|
|
}
|
|
break;
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
for (; currentBinding; currentBinding = currentBinding->parent()) {
|
|
const QList<Symbol *> symbols = currentBinding->symbols();
|
|
|
|
if (! symbols.isEmpty()) {
|
|
if (symbols.first()->isNamespace())
|
|
completeNamespace(currentBinding);
|
|
else
|
|
completeClass(currentBinding);
|
|
}
|
|
}
|
|
|
|
foreach (ClassOrNamespace *b, usingBindings)
|
|
completeNamespace(b);
|
|
|
|
addKeywords();
|
|
addMacros(QLatin1String("<configuration>"), context.snapshot());
|
|
addMacros(context.thisDocument()->fileName(), context.snapshot());
|
|
addSnippets();
|
|
}
|
|
|
|
bool CppCompletionAssistProcessor::completeMember(const QList<CPlusPlus::LookupItem> &baseResults)
|
|
{
|
|
const LookupContext &context = typeOfExpression.context();
|
|
|
|
if (baseResults.isEmpty())
|
|
return false;
|
|
|
|
ResolveExpression resolveExpression(context);
|
|
|
|
if (ClassOrNamespace *binding =
|
|
resolveExpression.baseExpression(baseResults,
|
|
m_model->m_completionOperator,
|
|
&m_model->m_replaceDotForArrow)) {
|
|
if (binding)
|
|
completeClass(binding, /*static lookup = */ false);
|
|
|
|
return ! m_completions.isEmpty();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool CppCompletionAssistProcessor::completeScope(const QList<CPlusPlus::LookupItem> &results)
|
|
{
|
|
const LookupContext &context = 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;
|
|
}
|
|
|
|
} else if (Namespace *nsTy = ty->asNamespaceType()) {
|
|
if (ClassOrNamespace *b = context.lookupType(nsTy)) {
|
|
completeNamespace(b);
|
|
break;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
return ! m_completions.isEmpty();
|
|
}
|
|
|
|
void CppCompletionAssistProcessor::completeNamespace(CPlusPlus::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 (Namespace *ns = bb->asNamespace())
|
|
scopesToVisit.append(ns);
|
|
}
|
|
|
|
foreach (Enum *e, binding->enums()) {
|
|
scopesToVisit.append(e);
|
|
}
|
|
|
|
while (! scopesToVisit.isEmpty()) {
|
|
Scope *scope = scopesToVisit.takeFirst();
|
|
if (! scope || scopesVisited.contains(scope))
|
|
continue;
|
|
|
|
scopesVisited.insert(scope);
|
|
|
|
for (Scope::iterator it = scope->firstMember(); it != scope->lastMember(); ++it) {
|
|
Symbol *member = *it;
|
|
addCompletionItem(member);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void CppCompletionAssistProcessor::completeClass(CPlusPlus::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);
|
|
}
|
|
|
|
foreach (Enum *e, binding->enums())
|
|
scopesToVisit.append(e);
|
|
|
|
while (! scopesToVisit.isEmpty()) {
|
|
Scope *scope = scopesToVisit.takeFirst();
|
|
if (! scope || scopesVisited.contains(scope))
|
|
continue;
|
|
|
|
scopesVisited.insert(scope);
|
|
|
|
addCompletionItem(scope); // add a completion item for the injected class name.
|
|
|
|
for (Scope::iterator it = scope->firstMember(); it != scope->lastMember(); ++it) {
|
|
Symbol *member = *it;
|
|
if (member->isFriend()
|
|
|| member->isQtPropertyDeclaration()
|
|
|| member->isQtEnum()) {
|
|
continue;
|
|
} else if (! staticLookup && (member->isTypedef() ||
|
|
member->isEnum() ||
|
|
member->isClass())) {
|
|
continue;
|
|
}
|
|
|
|
addCompletionItem(member);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool CppCompletionAssistProcessor::completeQtMethod(const QList<CPlusPlus::LookupItem> &results, bool wantSignals)
|
|
{
|
|
if (results.isEmpty())
|
|
return false;
|
|
|
|
const LookupContext &context = typeOfExpression.context();
|
|
|
|
ConvertToCompletionItem toCompletionItem;
|
|
Overview o;
|
|
o.setShowReturnTypes(false);
|
|
o.setShowArgumentNames(false);
|
|
o.setShowFunctionSignatures(true);
|
|
|
|
QSet<QString> signatures;
|
|
foreach (const LookupItem &p, results) {
|
|
FullySpecifiedType ty = p.type().simplified();
|
|
|
|
if (PointerType *ptrTy = ty->asPointerType())
|
|
ty = ptrTy->elementType().simplified();
|
|
else
|
|
continue; // not a pointer or a reference to a pointer.
|
|
|
|
NamedType *namedTy = ty->asNamedType();
|
|
if (! namedTy) // not a class name.
|
|
continue;
|
|
|
|
ClassOrNamespace *b = context.lookupType(namedTy->name(), p.scope());
|
|
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());
|
|
}
|
|
}
|
|
|
|
foreach (Scope *scope, scopes) {
|
|
if (! scope->isClass())
|
|
continue;
|
|
|
|
for (unsigned i = 0; i < scope->memberCount(); ++i) {
|
|
Symbol *member = scope->memberAt(i);
|
|
Function *fun = member->type()->asFunctionType();
|
|
if (! fun)
|
|
continue;
|
|
if (wantSignals && ! fun->isSignal())
|
|
continue;
|
|
else if (! wantSignals && ! fun->isSlot())
|
|
continue;
|
|
BasicProposalItem *item = toCompletionItem(fun);
|
|
if (item) {
|
|
unsigned count = fun->argumentCount();
|
|
while (true) {
|
|
BasicProposalItem *ci = item;
|
|
|
|
QString signature;
|
|
signature += Overview().prettyName(fun->name());
|
|
signature += QLatin1Char('(');
|
|
for (unsigned i = 0; i < count; ++i) {
|
|
Symbol *arg = fun->argumentAt(i);
|
|
if (i != 0)
|
|
signature += QLatin1Char(',');
|
|
signature += o.prettyType(arg->type());
|
|
}
|
|
signature += QLatin1Char(')');
|
|
|
|
const QByteArray normalized =
|
|
QMetaObject::normalizedSignature(signature.toLatin1());
|
|
|
|
signature = QString::fromLatin1(normalized, normalized.size());
|
|
|
|
if (! signatures.contains(signature)) {
|
|
signatures.insert(signature);
|
|
|
|
ci->setText(signature); // fix the completion item.
|
|
m_completions.append(ci);
|
|
}
|
|
|
|
if (count && fun->argumentAt(count - 1)->asArgument()->hasInitializer())
|
|
--count;
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
return ! m_completions.isEmpty();
|
|
}
|
|
|
|
void CppCompletionAssistProcessor::addSnippets()
|
|
{
|
|
m_completions.append(m_snippetCollector.collect());
|
|
}
|
|
|
|
void CppCompletionAssistProcessor::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)
|
|
addCompletionItem(QLatin1String(Token::name(i)), m_icons.keywordIcon());
|
|
}
|
|
|
|
void CppCompletionAssistProcessor::addMacros(const QString &fileName, const CPlusPlus::Snapshot &snapshot)
|
|
{
|
|
QSet<QString> processed;
|
|
QSet<QString> definedMacros;
|
|
|
|
addMacros_helper(snapshot, fileName, &processed, &definedMacros);
|
|
|
|
foreach (const QString ¯oName, definedMacros)
|
|
addCompletionItem(macroName, m_icons.macroIcon());
|
|
}
|
|
|
|
void CppCompletionAssistProcessor::addMacros_helper(const CPlusPlus::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->includes()) {
|
|
addMacros_helper(snapshot, i.fileName(), processed, definedMacros);
|
|
}
|
|
|
|
foreach (const Macro ¯o, doc->definedMacros()) {
|
|
const QString macroName = QString::fromUtf8(macro.name().constData(), macro.name().length());
|
|
if (! macro.isHidden())
|
|
definedMacros->insert(macroName);
|
|
else
|
|
definedMacros->remove(macroName);
|
|
}
|
|
}
|
|
|
|
bool CppCompletionAssistProcessor::completeConstructorOrFunction(const QList<CPlusPlus::LookupItem> &results,
|
|
int endOfExpression,
|
|
bool toolTipOnly)
|
|
{
|
|
const LookupContext &context = 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 (unsigned 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->isEqualTo(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->isEqualTo(f)) {
|
|
newOverload = false;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (newOverload)
|
|
functions.append(fun);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (functions.isEmpty()) {
|
|
const Name *functionCallOp = context.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;
|
|
Convenience::convertPosition(m_interface->document(), m_interface->position(), &lineSigned, &columnSigned);
|
|
unsigned line = lineSigned, column = columnSigned;
|
|
|
|
// 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->document());
|
|
tc.setPosition(endOfExpression);
|
|
BackwardsScanner bs(tc);
|
|
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("();");
|
|
|
|
Document::Ptr doc = Document::create(QLatin1String("<completion>"));
|
|
doc->setSource(possibleDecl.toLatin1());
|
|
if (doc->parse(Document::ParseDeclaration)) {
|
|
doc->check();
|
|
if (SimpleDeclarationAST *sd = doc->translationUnit()->ast()->asSimpleDeclaration()) {
|
|
if (sd->declarator_list &&
|
|
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 signature autocompletion
|
|
foreach (Function *f, functions) {
|
|
Overview overview;
|
|
overview.setShowArgumentNames(true);
|
|
overview.setShowDefaultArguments(false);
|
|
|
|
// gets: "parameter list) cv-spec",
|
|
QString completion = overview(f->type()).mid(1);
|
|
|
|
addCompletionItem(completion, QIcon(), 0,
|
|
QVariant::fromValue(CompleteFunctionDeclaration(f)));
|
|
}
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (! functions.empty() && !isDestructor) {
|
|
m_hintProposal = createHintProposal(functions);
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|