142 lines
4.3 KiB
C++
142 lines
4.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the tools applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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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 http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company 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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** $QT_END_LICENSE$
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**
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****************************************************************************/
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/*
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jscodemarker.cpp
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*/
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#include "qqmljsast_p.h"
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#include "qqmljsengine_p.h"
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#include "qqmljslexer_p.h"
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#include "qqmljsparser_p.h"
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#include "atom.h"
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#include "node.h"
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#include "jscodemarker.h"
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#include "qmlmarkupvisitor.h"
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#include "text.h"
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#include "tree.h"
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#include "generator.h"
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QT_BEGIN_NAMESPACE
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JsCodeMarker::JsCodeMarker()
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{
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}
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JsCodeMarker::~JsCodeMarker()
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{
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}
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/*!
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Returns \c true if the \a code is recognized by the parser.
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*/
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bool JsCodeMarker::recognizeCode(const QString &code)
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{
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QQmlJS::Engine engine;
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QQmlJS::Lexer lexer(&engine);
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QQmlJS::Parser parser(&engine);
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QString newCode = code;
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QList<QQmlJS::AST::SourceLocation> pragmas = extractPragmas(newCode);
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lexer.setCode(newCode, 1);
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return parser.parseProgram();
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}
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/*!
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Returns \c true if \a ext is any of a list of file extensions
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for the QML language.
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*/
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bool JsCodeMarker::recognizeExtension(const QString &ext)
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{
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return ext == "js" || ext == "json";
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}
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/*!
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Returns \c true if the \a language is recognized. We recognize JavaScript,
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ECMAScript and JSON.
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*/
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bool JsCodeMarker::recognizeLanguage(const QString &language)
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{
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return language == "JavaScript" || language == "ECMAScript" || language == "JSON";
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}
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/*!
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Returns the type of atom used to represent JavaScript code in the documentation.
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*/
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Atom::Type JsCodeMarker::atomType() const
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{
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return Atom::JavaScript;
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}
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QString JsCodeMarker::markedUpCode(const QString &code,
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const Node *relative,
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const Location &location)
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{
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return addMarkUp(code, relative, location);
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}
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QString JsCodeMarker::addMarkUp(const QString &code,
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const Node * /* relative */,
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const Location &location)
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{
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QQmlJS::Engine engine;
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QQmlJS::Lexer lexer(&engine);
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QString newCode = code;
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QList<QQmlJS::AST::SourceLocation> pragmas = extractPragmas(newCode);
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lexer.setCode(newCode, 1);
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QQmlJS::Parser parser(&engine);
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QString output;
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if (parser.parseProgram()) {
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QQmlJS::AST::Node *ast = parser.rootNode();
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// Pass the unmodified code to the visitor so that pragmas and other
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// unhandled source text can be output.
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QmlMarkupVisitor visitor(code, pragmas, &engine);
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QQmlJS::AST::Node::accept(ast, &visitor);
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output = visitor.markedUpCode();
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} else {
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location.warning(location.fileName() +
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tr("Unable to parse JavaScript: \"%1\" at line %2, column %3").arg(
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parser.errorMessage()).arg(parser.errorLineNumber()).arg(
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parser.errorColumnNumber()));
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output = protect(code);
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}
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return output;
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}
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QT_END_NAMESPACE
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