Changeset 179159 in webkit for trunk/Source/JavaScriptCore/parser/Parser.cpp

Timestamp:

Jan 26, 2015, 5:14:14 PM (10 years ago)

Author:

[email protected]

Message:

Parse a function expression as a primary expression
​https://bugs.webkit.org/show_bug.cgi?id=140908

Reviewed by Mark Lam.

Moved the code to generate an AST node for a function expression from parseMemberExpression
to parsePrimaryExpression to match the ES6 specification terminology:
​https://people.mozilla.org/~jorendorff/es6-draft.html#sec-primary-expression

There should be no behavior change from this change since parsePrimaryExpression is only
called in parseMemberExpression other than the fact failIfStackOverflow() is called.

• parser/Parser.cpp:

(JSC::Parser<LexerType>::parsePrimaryExpression):
(JSC::Parser<LexerType>::parseMemberExpression):

File:

• trunk/Source/JavaScriptCore/parser/Parser.cpp (modified) (2 diffs)

trunk/Source/JavaScriptCore/parser/Parser.cpp

@@ -2028 +2028 @@
     failIfStackOverflow();
     switch (m_token.m_type) {
+    case FUNCTION: {
+        JSTokenLocation location(tokenLocation());
+        unsigned functionKeywordStart = tokenStart();
+        next();
+        ParserFunctionInfo<TreeBuilder> info;
+        info.name = &m_vm->propertyNames->nullIdentifier;
+        failIfFalse((parseFunctionInfo(context, FunctionNoRequirements, FunctionMode, false, info)), "Cannot parse function expression");
+        return context.createFunctionExpr(location, info, functionKeywordStart);
+    }
     case OPENBRACE:
         if (strictMode())
@@ -2164 +2173 @@
     }
 
-    if (match(FUNCTION)) {
-        unsigned functionKeywordStart = tokenStart();
-        location = tokenLocation();
-        next();
-        ParserFunctionInfo<TreeBuilder> info;
-        info.name = &m_vm->propertyNames->nullIdentifier;
-        failIfFalse((parseFunctionInfo(context, FunctionNoRequirements, FunctionMode, false, info)), "Cannot parse function expression");
-        base = context.createFunctionExpr(location, info, functionKeywordStart);
-    } else
-        base = parsePrimaryExpression(context);
+    base = parsePrimaryExpression(context);
     
     failIfFalse(base, "Cannot parse base expression");