diff options
Diffstat (limited to 'js/src/frontend/FoldConstants.cpp')
| -rw-r--r-- | js/src/frontend/FoldConstants.cpp | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/js/src/frontend/FoldConstants.cpp b/js/src/frontend/FoldConstants.cpp index 6f62ffac68..689fa02b4b 100644 --- a/js/src/frontend/FoldConstants.cpp +++ b/js/src/frontend/FoldConstants.cpp @@ -378,6 +378,7 @@ ContainsHoistedDeclaration(ExclusiveContext* cx, ParseNode* node, bool* result) case PNK_TRUE: case PNK_FALSE: case PNK_NULL: + case PNK_RAW_UNDEFINED: case PNK_THIS: case PNK_ELISION: case PNK_NUMBER: @@ -468,6 +469,7 @@ IsEffectless(ParseNode* node) node->isKind(PNK_TEMPLATE_STRING) || node->isKind(PNK_NUMBER) || node->isKind(PNK_NULL) || + node->isKind(PNK_RAW_UNDEFINED) || node->isKind(PNK_FUNCTION) || node->isKind(PNK_GENEXP); } @@ -492,6 +494,7 @@ Boolish(ParseNode* pn) case PNK_FALSE: case PNK_NULL: + case PNK_RAW_UNDEFINED: return Falsy; case PNK_VOID: { @@ -1342,15 +1345,8 @@ FoldElement(ExclusiveContext* cx, ParseNode** nodePtr, Parser<FullParseHandler>& if (!name) return true; - // Also don't optimize if the name doesn't map directly to its id for TI's - // purposes. - if (NameToId(name) != IdToTypeId(NameToId(name))) - return true; - // Optimization 3: We have expr["foo"] where foo is not an index. Convert // to a property access (like expr.foo) that optimizes better downstream. - // Don't bother with this for names that TI considers to be indexes, to - // simplify downstream analysis. ParseNode* dottedAccess = parser.handler.newPropertyAccess(expr, name, node->pn_pos.end); if (!dottedAccess) return false; @@ -1643,6 +1639,7 @@ Fold(ExclusiveContext* cx, ParseNode** pnp, Parser<FullParseHandler>& parser, bo case PNK_TRUE: case PNK_FALSE: case PNK_NULL: + case PNK_RAW_UNDEFINED: case PNK_ELISION: case PNK_NUMBER: case PNK_DEBUGGER: |