QmlJS: Support .import directives in js files.

* Allow .import...
* Fix parsing of JS files when using Lexer::scanDirectives()
* Clean up ImportInfo construction.
* Rename ImportInfo::id to ImportInfo::as.

Change-Id: I888da248f06dc6184db99aa74c3b50d7f2f5e491
Reviewed-on: http://codereview.qt-project.org/5625
Reviewed-by: Roberto Raggi <roberto.raggi@nokia.com>

3 files changed, 26 insertions, 2 deletions

diff --git a/src/libs/qmljs/parser/qmljsengine_p.cpp b/src/libs/qmljs/parser/qmljsengine_p.cpp
index 3d9a84e8f1..ca7597dac9 100644
--- a/src/libs/qmljs/parser/qmljsengine_p.cpp
+++ b/src/libs/qmljs/parser/qmljsengine_p.cpp
@@ -113,7 +113,7 @@ double integerFromString(const QString &str, int radix)
 
 
 Engine::Engine()
-    : _lexer(0)
+    : _lexer(0), _directives(0)
 { }
 
 Engine::~Engine()
@@ -134,6 +134,12 @@ Lexer *Engine::lexer() const
 void Engine::setLexer(Lexer *lexer)
 { _lexer = lexer; }
 
+void Engine::setDirectives(Directives *directives)
+{ _directives = directives; }
+
+Directives *Engine::directives() const
+{ return _directives; }
+
 MemoryPool *Engine::pool()
 { return &_pool; }
 
diff --git a/src/libs/qmljs/parser/qmljsengine_p.h b/src/libs/qmljs/parser/qmljsengine_p.h
index 9297b38ca1..1aec0c5d77 100644
--- a/src/libs/qmljs/parser/qmljsengine_p.h
+++ b/src/libs/qmljs/parser/qmljsengine_p.h
@@ -56,6 +56,7 @@ QT_QML_BEGIN_NAMESPACE
 namespace QmlJS {
 
 class Lexer;
+class Directives;
 class MemoryPool;
 
 class QML_PARSER_EXPORT DiagnosticMessage
@@ -83,6 +84,7 @@ public:
 class QML_PARSER_EXPORT Engine
 {
     Lexer *_lexer;
+    Directives *_directives;
     MemoryPool _pool;
     QList<AST::SourceLocation> _comments;
     QString _extraCode;
@@ -100,6 +102,9 @@ public:
     Lexer *lexer() const;
     void setLexer(Lexer *lexer);
 
+    void setDirectives(Directives *directives);
+    Directives *directives() const;
+
     MemoryPool *pool();
 
     inline QStringRef midRef(int position, int size) { return _code.midRef(position, size); }
diff --git a/src/libs/qmljs/parser/qmljsparser.cpp b/src/libs/qmljs/parser/qmljsparser.cpp
index b85092b8da..61f901de8d 100644
--- a/src/libs/qmljs/parser/qmljsparser.cpp
+++ b/src/libs/qmljs/parser/qmljsparser.cpp
@@ -138,7 +138,20 @@ bool Parser::parse(int startToken)
 
     token_buffer[0].token = startToken;
     first_token = &token_buffer[0];
-    last_token = &token_buffer[1];
+    if (startToken == T_FEED_JS_PROGRAM) {
+        Directives ignoreDirectives;
+        Directives *directives = driver->directives();
+        if (!directives)
+            directives = &ignoreDirectives;
+        lexer->scanDirectives(directives);
+        token_buffer[1].token = lexer->tokenKind();
+        token_buffer[1].dval = lexer->tokenValue();
+        token_buffer[1].loc = location(lexer);
+        token_buffer[1].spell = lexer->tokenSpell();
+        last_token = &token_buffer[2];
+    } else {
+        last_token = &token_buffer[1];
+    }
 
     tos = -1;
     program = 0;