JavaScriptCore-7601.1.46.3.tar.gz

[apple/javascriptcore.git] / parser / SourceCode.h

diff --git a/parser/SourceCode.h b/parser/SourceCode.h
index 73d23db82af25ea46c0f89785ce424bb60eb61a7..f4a19029b5808d2bb0453b103e210ea140c99319 100644 (file)
--- a/parser/SourceCode.h
+++ b/parser/SourceCode.h
@@ -105,6 +105,9 @@ namespace JSC {
         
         SourceCode subExpression(unsigned openBrace, unsigned closeBrace, int firstLine, int startColumn);
 
+#if ENABLE(ES6_ARROWFUNCTION_SYNTAX)
+        SourceCode subArrowExpression(unsigned startArrowFunction, unsigned endArrowFunction, int firstLine, int startColumn);
+#endif
     private:
         RefPtr<SourceProvider> m_provider;
         int m_startChar;
@@ -117,6 +120,16 @@ namespace JSC {
     {
         return SourceCode(StringSourceProvider::create(source, url, startPosition), startPosition.m_line.oneBasedInt(), startPosition.m_column.oneBasedInt());
     }
+    
+#if ENABLE(ES6_ARROWFUNCTION_SYNTAX)
+    inline SourceCode SourceCode::subArrowExpression(unsigned startArrowFunction, unsigned endArrowFunction, int firstLine, int startColumn)
+    {
+        ASSERT(provider()->source()[startArrowFunction] == '=' && provider()->source()[startArrowFunction + 1] == '>');
+
+        startColumn += 1; // Convert to base 1.
+        return SourceCode(provider(), startArrowFunction, endArrowFunction, firstLine, startColumn);
+    }
+#endif
 
     inline SourceCode SourceCode::subExpression(unsigned openBrace, unsigned closeBrace, int firstLine, int startColumn)
     {