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LibJS: Update bytecode generator to use local variables

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- Update ECMAScriptFunctionObject::function_declaration_instantiation
  to initialize local variables
- Introduce GetLocal, SetLocal, TypeofLocal that will be used to
  operate on local variables.
- Update bytecode generator to emit instructions for local variables
This commit is contained in:
Aliaksandr Kalenik 2023-07-05 02:17:10 +02:00 • committed by Andreas Kling
parent 0daff637e2
commit ae3a7fd4b8
8 changed files with 170 additions and 37 deletions
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2
Userland/Libraries/LibJS/Bytecode/Generator.h
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@ -83,6 +83,8 @@ public:
CodeGenerationErrorOr<void> emit_store_to_reference(JS::ASTNode const&);
CodeGenerationErrorOr<void> emit_delete_reference(JS::ASTNode const&);
void emit_set_variable(JS::Identifier const& identifier, Bytecode::Op::SetVariable::InitializationMode initialization_mode = Bytecode::Op::SetVariable::InitializationMode::Set, Bytecode::Op::EnvironmentMode mode = Bytecode::Op::EnvironmentMode::Lexical);
void push_home_object(Register);
void pop_home_object();
void emit_new_function(JS::FunctionExpression const&, Optional<IdentifierTableIndex> lhs_name);