diff options
Diffstat (limited to 'js/src/frontend/ParseNode.cpp')
| -rw-r--r-- | js/src/frontend/ParseNode.cpp | 28 |
1 files changed, 15 insertions, 13 deletions
diff --git a/js/src/frontend/ParseNode.cpp b/js/src/frontend/ParseNode.cpp index 5fe64e3d3..42ae9451a 100644 --- a/js/src/frontend/ParseNode.cpp +++ b/js/src/frontend/ParseNode.cpp @@ -286,22 +286,24 @@ PushNodeChildren(ParseNode* pn, NodeStack* stack) return PushResult::Recyclable; } - // The left half is the expression being yielded. The right half is - // internal goop: a name reference to the invisible '.generator' local - // variable, or an assignment of a PNK_GENERATOR node to the '.generator' - // local, for a synthesized, prepended initial yield. Yum! + // The child is an assignment of a PNK_GENERATOR node to the + // '.generator' local, for a synthesized, prepended initial yield. + case PNK_INITIALYIELD: { + MOZ_ASSERT(pn->isArity(PN_UNARY)); + MOZ_ASSERT(pn->pn_kid->isKind(PNK_ASSIGN) && + pn->pn_kid->pn_left->isKind(PNK_NAME) && + pn->pn_kid->pn_right->isKind(PNK_GENERATOR)); + stack->push(pn->pn_kid); + return PushResult::Recyclable; + } + + // The child is the expression being yielded. case PNK_YIELD_STAR: case PNK_YIELD: case PNK_AWAIT: { - MOZ_ASSERT(pn->isArity(PN_BINARY)); - MOZ_ASSERT(pn->pn_right); - MOZ_ASSERT(pn->pn_right->isKind(PNK_NAME) || - (pn->pn_right->isKind(PNK_ASSIGN) && - pn->pn_right->pn_left->isKind(PNK_NAME) && - pn->pn_right->pn_right->isKind(PNK_GENERATOR))); - if (pn->pn_left) - stack->push(pn->pn_left); - stack->push(pn->pn_right); + MOZ_ASSERT(pn->isArity(PN_UNARY)); + if (pn->pn_kid) + stack->push(pn->pn_kid); return PushResult::Recyclable; } |