Can I know how did V8 deal with the Array(len) ?
I found this code inside V8, is that right?
在此输入代码...
Reduction JSCallReducer::ReduceArrayConstructor(Node* node) {
DCHECK_EQ(IrOpcode::kJSCall, node->opcode());
Node* target = NodeProperties::GetValueInput(node, 0);
CallParameters const& p = CallParametersOf(node->op());
// Turn the {node} into a {JSCreateArray} call.
DCHECK_LE(2u, p.arity());
Handle<AllocationSite> site;
size_t const arity = p.arity() - 2;
NodeProperties::ReplaceValueInput(node, target, 0);
NodeProperties::ReplaceValueInput(node, target, 1);
NodeProperties::ChangeOp(node, javascript()->CreateArray(arity, site));
return Changed(node);
}
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