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Unified Diff: src/parser.h

Issue 1127063003: [es6] implement default parameters via desugaring (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: arv's comments Created 5 years, 7 months ago
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Index: src/parser.h
diff --git a/src/parser.h b/src/parser.h
index 1a84ec4157aff1210e7a8aeb2458d6d4cd91a2e8..70bdfab9311a62fed82aeb43132d3e5fce012ec2 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -746,9 +746,10 @@ class ParserTraits {
FunctionKind kind = kNormalFunction);
bool DeclareFormalParameter(Scope* scope, const AstRawString* name,
- bool is_rest) {
+ bool is_rest, int pos) {
bool is_duplicate = false;
- Variable* var = scope->DeclareParameter(name, VAR, is_rest, &is_duplicate);
+ Variable* var =
+ scope->DeclareParameter(name, VAR, is_rest, &is_duplicate, pos);
if (is_sloppy(scope->language_mode())) {
// TODO(sigurds) Mark every parameter as maybe assigned. This is a
// conservative approximation necessary to account for parameters
@@ -979,6 +980,9 @@ class Parser : public ParserBase<ParserTraits> {
ForStatement* loop, Statement* init, Expression* cond, Statement* next,
Statement* body, bool* ok);
+ ZoneList<Statement*>* DesugarInitializeParameters(
+ Scope* scope, bool has_initializers, ZoneList<Expression*>* initializers);
+
FunctionLiteral* ParseFunctionLiteral(
const AstRawString* name, Scanner::Location function_name_location,
bool name_is_strict_reserved, FunctionKind kind,
@@ -1012,6 +1016,10 @@ class Parser : public ParserBase<ParserTraits> {
VariableProxy* NewUnresolved(const AstRawString* name, VariableMode mode);
Variable* Declare(Declaration* declaration, bool resolve, bool* ok);
+ // Parameters have expressions --- ensure that the declared parameters can
+ // never be resolved
+ void ShadowParametersForExpressions(Scope* scope);
+
bool TargetStackContainsLabel(const AstRawString* label);
BreakableStatement* LookupBreakTarget(const AstRawString* label, bool* ok);
IterationStatement* LookupContinueTarget(const AstRawString* label, bool* ok);
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