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41
42/*
43 jscodemarker.cpp
44*/
45
46#include "declarativeparser/qdeclarativejsast_p.h"
47#include "declarativeparser/qdeclarativejsengine_p.h"
48#include "declarativeparser/qdeclarativejslexer_p.h"
49#include "declarativeparser/qdeclarativejsnodepool_p.h"
50#include "declarativeparser/qdeclarativejsparser_p.h"
51
52#include "atom.h"
53#include "node.h"
54#include "jscodemarker.h"
55#include "qmlmarkupvisitor.h"
56#include "text.h"
57#include "tree.h"
58
59QT_BEGIN_NAMESPACE
60
61JsCodeMarker::JsCodeMarker()
62{
63}
64
65JsCodeMarker::~JsCodeMarker()
66{
67}
68
69/*!
70 Returns true if the \a code is recognized by the parser.
71 */
72bool JsCodeMarker::recognizeCode(const QString &code)
73{
74 QDeclarativeJS::Engine engine;
75 QDeclarativeJS::Lexer lexer(&engine);
76 QDeclarativeJS::Parser parser(&engine);
77 QDeclarativeJS::NodePool m_nodePool("<JsCodeMarker::recognizeCode>", &engine);
78
79 QString newCode = code;
80 QList<QDeclarativeJS::AST::SourceLocation> pragmas = extractPragmas(newCode);
81 lexer.setCode(newCode, 1);
82
83 return parser.parseProgram();
84}
85
86/*!
87 Returns true if \a ext is any of a list of file extensions
88 for the QML language.
89 */
90bool JsCodeMarker::recognizeExtension(const QString &ext)
91{
92 return ext == "js";
93}
94
95/*!
96 Returns true if the \a language is recognized. Only "QML" is
97 recognized by this marker.
98 */
99bool JsCodeMarker::recognizeLanguage(const QString &language)
100{
101 return language == "JavaScript" || language == "ECMAScript";
102}
103
104/*!
105 Returns the type of atom used to represent JavaScript code in the documentation.
106*/
107Atom::Type JsCodeMarker::atomType() const
108{
109 return Atom::JavaScript;
110}
111
112QString JsCodeMarker::markedUpCode(const QString &code,
113 const Node *relative,
114 const Location &location)
115{
116 return addMarkUp(code, relative, location);
117}
118
119QString JsCodeMarker::addMarkUp(const QString &code,
120 const Node * /* relative */,
121 const Location &location)
122{
123 QDeclarativeJS::Engine engine;
124 QDeclarativeJS::Lexer lexer(&engine);
125
126 QString newCode = code;
127 QList<QDeclarativeJS::AST::SourceLocation> pragmas = extractPragmas(newCode);
128 lexer.setCode(newCode, 1);
129
130 QDeclarativeJS::Parser parser(&engine);
131 QDeclarativeJS::NodePool m_nodePool("<JsCodeMarker::addMarkUp>", &engine);
132 QString output;
133
134 if (parser.parseProgram()) {
135 QDeclarativeJS::AST::Node *ast = parser.rootNode();
136 // Pass the unmodified code to the visitor so that pragmas and other
137 // unhandled source text can be output.
138 QmlMarkupVisitor visitor(code, pragmas, &engine);
139 QDeclarativeJS::AST::Node::accept(ast, &visitor);
140 output = visitor.markedUpCode();
141 } else {
142 location.warning(tr("Unable to parse JavaScript: \"%1\" at line %2, column %3").arg(
143 parser.errorMessage()).arg(parser.errorLineNumber()).arg(
144 parser.errorColumnNumber()));
145 output = protect(code);
146 }
147
148 return output;
149}
150
151QT_END_NAMESPACE
152

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