vm/parser.cc - Issue 10808111: Move more symbols to the vm isolate.

Unified Diff: vm/parser.cc

Issue 10808111: Move more symbols to the vm isolate. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/runtime/

Patch Set: Created 8 years, 5 months ago

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Index: vm/parser.cc

===================================================================

--- vm/parser.cc (revision 9904)

+++ vm/parser.cc (working copy)

@@ -37,25 +37,6 @@

enable_checked_mode,

"Enabled checked mode.");

-// All references to Dart names are listed here.

-static const char* kAssertionErrorName = "AssertionError";

-static const char* kTypeErrorName = "TypeError";

-static const char* kFallThroughErrorName = "FallThroughError";

-static const char* kStaticResolutionExceptionName = "StaticResolutionException";

-static const char* kThrowNewName = "_throwNew";

-static const char* kListLiteralFactoryClassName = "_ListLiteralFactory";

-static const char* kListLiteralFactoryName = "List.fromLiteral";

-static const char* kMapLiteralFactoryClassName = "_MapLiteralFactory";

-static const char* kMapLiteralFactoryName = "Map.fromLiteral";

-static const char* kImmutableMapName = "ImmutableMap";

-static const char* kImmutableMapConstructorName = "ImmutableMap._create";

-static const char* kStringClassName = "StringBase";

-static const char* kInterpolateName = "_interpolate";

-static const char* kThisName = "this";

-static const char* kPhaseParameterName = ":phase";

-static const char* kGetIteratorName = "iterator";

-static const char* kNoSuchMethodName = "noSuchMethod";

#if defined(DEBUG)

class TraceParser : public ValueObject {

@@ -123,7 +104,7 @@

LocalVariable* ParsedFunction::CreateExpressionTempVar(intptr_t token_pos) {

return new LocalVariable(token_pos,

- String::ZoneHandle(Symbols::New(":expr_temp")),

+ String::ZoneHandle(Symbols::ExprTemp()),

Type::ZoneHandle(Type::DynamicType()));

}

@@ -433,12 +414,12 @@

}

void AddFinalParameter(intptr_t name_pos,

- const char* name,

+ String* name,

const AbstractType* type) {

this->num_fixed_parameters++;

ParamDesc param;

param.name_pos = name_pos;

- param.name = &String::ZoneHandle(Symbols::New(name));

+ param.name = name;

param.is_final = true;

param.type = type;

this->parameters->Add(param);

@@ -448,7 +429,7 @@

ASSERT(this->parameters->is_empty());

// The receiver does not need to be type checked.

AddFinalParameter(name_pos,

- kThisName,

+ &String::ZoneHandle(Symbols::This()),

&Type::ZoneHandle(Type::DynamicType()));

}

@@ -911,7 +892,9 @@

ParamList params;

params.AddReceiver(TokenPos());

- params.AddFinalParameter(TokenPos(), "value", &field_type);

+ params.AddFinalParameter(TokenPos(),

+ &String::ZoneHandle(Symbols::Value()),

+ &field_type);

ASSERT(func.num_fixed_parameters() == 2); // receiver, value.

ASSERT(func.num_optional_parameters() == 0);

ASSERT(AbstractType::Handle(func.result_type()).IsVoidType());

@@ -1242,8 +1225,7 @@

Function& super_func =

Function::Handle(ResolveDynamicFunction(super_class, name));

if (super_func.IsNull()) {

- const String& no_such_method_name =

- String::ZoneHandle(Symbols::New(kNoSuchMethodName));

+ const String& no_such_method_name = String::Handle(Symbols::NoSuchMethod());

super_func = ResolveDynamicFunction(super_class, no_such_method_name);

ASSERT(!super_func.IsNull());

*is_no_such_method = true;

@@ -1356,7 +1338,7 @@

// Resolve the [] operator function in the superclass.

const String& index_operator_name =

- String::ZoneHandle(Symbols::New(Token::Str(Token::kINDEX)));

+ String::ZoneHandle(Symbols::IndexToken());

bool is_no_such_method = false;

const Function& index_operator = Function::ZoneHandle(

GetSuperFunction(operator_pos,

@@ -1383,8 +1365,8 @@

value = ExpandAssignableOp(operator_pos, assignment_op, super_op, value);

// Resolve the []= operator function in the superclass.

- const String& assign_index_operator_name = String::ZoneHandle(

- Symbols::New(Token::Str(Token::kASSIGN_INDEX)));

+ const String& assign_index_operator_name =

+ String::ZoneHandle(Symbols::AssignIndexToken());

bool is_no_such_method = false;

const Function& assign_index_operator = Function::ZoneHandle(

GetSuperFunction(operator_pos,

@@ -1816,13 +1798,13 @@

LocalVariable* receiver = new LocalVariable(

ctor_pos,

- String::ZoneHandle(Symbols::New(kThisName)),

+ String::ZoneHandle(Symbols::This()),

Type::ZoneHandle(Type::DynamicType()));

current_block_->scope->AddVariable(receiver);

LocalVariable* phase_parameter = new LocalVariable(

ctor_pos,

- String::ZoneHandle(Symbols::New(kPhaseParameterName)),

+ String::ZoneHandle(Symbols::PhaseParameter()),

Type::ZoneHandle(Type::DynamicType()));

current_block_->scope->AddVariable(phase_parameter);

@@ -1884,7 +1866,7 @@

// Add implicit parameter for construction phase.

params.AddFinalParameter(

TokenPos(),

- kPhaseParameterName,

+ &String::ZoneHandle(Symbols::PhaseParameter()),

&Type::ZoneHandle(Type::DynamicType()));

if (func.is_const()) {

@@ -2333,7 +2315,7 @@

if (method->IsConstructor()) {

method->params.AddFinalParameter(

TokenPos(),

- kPhaseParameterName,

+ &String::ZoneHandle(Symbols::PhaseParameter()),

&Type::ZoneHandle(Type::DynamicType()));

}

if (are_implicitly_final) {

@@ -2573,7 +2555,9 @@

field->name_pos);

ParamList params;

params.AddReceiver(TokenPos());

- params.AddFinalParameter(TokenPos(), "value", field->type);

+ params.AddFinalParameter(TokenPos(),

+ &String::ZoneHandle(Symbols::Value()),

+ field->type);

setter.set_result_type(Type::Handle(Type::VoidType()));

AddFormalParamsToFunction(&params, setter);

members->AddFunction(setter);

@@ -2944,7 +2928,7 @@

// Add implicit parameter for construction phase.

params.AddFinalParameter(

TokenPos(),

- kPhaseParameterName,

+ &String::ZoneHandle(Symbols::PhaseParameter()),

&Type::ZoneHandle(Type::DynamicType()));

AddFormalParamsToFunction(&params, ctor);

@@ -3820,9 +3804,7 @@

is_top_level_ = true;

TopLevel top_level;

Class& toplevel_class = Class::Handle(

- Class::New(String::ZoneHandle(Symbols::New("::")),

- script_,

- TokenPos()));

+ Class::New(String::Handle(Symbols::TopLevel()), script_, TokenPos()));

toplevel_class.set_library(library_);

if (is_library_source()) {

@@ -4038,14 +4020,14 @@

LocalVariable* Parser::LookupReceiver(LocalScope* from_scope, bool test_only) {

- const String& this_name = String::Handle(Symbols::New(kThisName));

+ const String& this_name = String::Handle(Symbols::This());

return from_scope->LookupVariable(this_name, test_only);

}

LocalVariable* Parser::LookupPhaseParameter() {

const String& phase_name =

- String::Handle(Symbols::New(kPhaseParameterName));

+ String::Handle(Symbols::PhaseParameter());

const bool kTestOnly = false;

return current_block_->scope->LookupVariable(phase_name, kTestOnly);

}

@@ -4213,9 +4195,7 @@

if (!is_literal) {

ErrorMsg("function name expected");

}

- const String& anonymous_function_name =

- String::ZoneHandle(Symbols::New("function"));

- function_name = &anonymous_function_name;

+ function_name = &String::ZoneHandle(Symbols::Function());

}

ASSERT(ident_pos >= 0);

@@ -4748,8 +4728,10 @@

ArgumentListNode* arguments = new ArgumentListNode(TokenPos());

arguments->Add(new LiteralNode(

TokenPos(), Integer::ZoneHandle(Integer::New(TokenPos()))));

+ const String& cls_name = String::Handle(Symbols::FallThroughError());

+ const String& func_name = String::Handle(Symbols::ThrowNew());

current_block_->statements->Add(

- MakeStaticCall(kFallThroughErrorName, kThrowNewName, arguments));

+ MakeStaticCall(cls_name, func_name, arguments));

}

break;

}

@@ -4920,8 +4902,7 @@

OpenBlock(); // Implicit block around while loop.

// Generate implicit iterator variable and add to scope.

- const String& iterator_name =

- String::ZoneHandle(Symbols::New(":for-in-iter"));

+ const String& iterator_name = String::ZoneHandle(Symbols::ForInIter());

// We could set the type of the implicit iterator variable to Iterator<T>

// where T is the type of the for loop variable. However, the type error

// would refer to the compiler generated iterator and could confuse the user.

@@ -4934,7 +4915,7 @@

// Generate initialization of iterator variable.

const String& iterator_method_name =

- String::ZoneHandle(Symbols::New(kGetIteratorName));

+ String::ZoneHandle(Symbols::GetIterator());

ArgumentListNode* no_args = new ArgumentListNode(collection_pos);

AstNode* get_iterator = new InstanceCallNode(

collection_pos, collection_expr, iterator_method_name, no_args);

@@ -4946,7 +4927,7 @@

AstNode* iterator_has_next = new InstanceCallNode(

collection_pos,

new LoadLocalNode(collection_pos, *iterator_var),

- String::ZoneHandle(Symbols::New("hasNext")),

+ String::ZoneHandle(Symbols::HasNext()),

no_args);

// Parse the for loop body. Ideally, we would use ParseNestedStatement()

@@ -4959,7 +4940,7 @@

AstNode* iterator_next = new InstanceCallNode(

collection_pos,

new LoadLocalNode(collection_pos, *iterator_var),

- String::ZoneHandle(Symbols::New("next")),

+ String::ZoneHandle(Symbols::Next()),

no_args);

// Generate assignment of next iterator value to loop variable.

@@ -5070,15 +5051,11 @@

// Calling VM-internal helpers, uses implementation core library.

-AstNode* Parser::MakeStaticCall(const char* class_name,

- const char* function_name,

+AstNode* Parser::MakeStaticCall(const String& cls_name,

+ const String& func_name,

ArgumentListNode* arguments) {

- const String& cls_name =

- String::Handle(Symbols::New(class_name));

const Class& cls = Class::Handle(LookupImplClass(cls_name));

ASSERT(!cls.IsNull());

- const String& func_name =

- String::ZoneHandle(Symbols::New(function_name));

const Function& func = Function::ZoneHandle(

Resolver::ResolveStatic(cls,

func_name,

@@ -5097,7 +5074,9 @@

Integer::ZoneHandle(Integer::New(begin))));

arguments->Add(new LiteralNode(end,

Integer::ZoneHandle(Integer::New(end))));

- return MakeStaticCall(kAssertionErrorName, kThrowNewName, arguments);

+ const String& cls_name = String::Handle(Symbols::AssertionError());

+ const String& func_name = String::Handle(Symbols::ThrowNew());

+ return MakeStaticCall(cls_name, func_name, arguments);

}

@@ -5274,7 +5253,7 @@

// and the stacktrace object when an exception is thrown.

// These three implicit variables can never be captured variables.

const String& context_var_name =

- String::ZoneHandle(Symbols::New(":saved_context_var"));

+ String::ZoneHandle(Symbols::SavedContextVar());

LocalVariable* context_var =

current_block_->scope->LocalLookupVariable(context_var_name);

if (context_var == NULL) {

@@ -5284,7 +5263,7 @@

current_block_->scope->AddVariable(context_var);

}

const String& catch_excp_var_name =

- String::ZoneHandle(Symbols::New(":exception_var"));

+ String::ZoneHandle(Symbols::ExceptionVar());

LocalVariable* catch_excp_var =

current_block_->scope->LocalLookupVariable(catch_excp_var_name);

if (catch_excp_var == NULL) {

@@ -5294,7 +5273,7 @@

current_block_->scope->AddVariable(catch_excp_var);

}

const String& catch_trace_var_name =

- String::ZoneHandle(Symbols::New(":stacktrace_var"));

+ String::ZoneHandle(Symbols::StacktraceVar());

LocalVariable* catch_trace_var =

current_block_->scope->LocalLookupVariable(catch_trace_var_name);

if (catch_trace_var == NULL) {

@@ -5663,10 +5642,10 @@

LocalScope* scope = label->owner()->parent();

ASSERT(scope != NULL);

LocalVariable* excp_var = scope->LocalLookupVariable(

- String::ZoneHandle(Symbols::New(":exception_var")));

+ String::ZoneHandle(Symbols::ExceptionVar()));

ASSERT(excp_var != NULL);

LocalVariable* trace_var = scope->LocalLookupVariable(

- String::ZoneHandle(Symbols::New(":stacktrace_var")));

+ String::ZoneHandle(Symbols::StacktraceVar()));

ASSERT(trace_var != NULL);

statement = new ThrowNode(statement_pos,

new LoadLocalNode(statement_pos, *excp_var),

@@ -5957,13 +5936,15 @@

arguments->Add(new LiteralNode(type_pos, String::ZoneHandle(

Symbols::New("malformed"))));

// Dst name argument.

- arguments->Add(new LiteralNode(type_pos, String::ZoneHandle(

- Symbols::New(""))));

+ arguments->Add(new LiteralNode(type_pos,

+ String::ZoneHandle(Symbols::Empty())));

// Malformed type error.

const Error& error = Error::Handle(type.malformed_error());

arguments->Add(new LiteralNode(type_pos, String::ZoneHandle(

Symbols::New(error.ToErrorCString()))));

- return MakeStaticCall(kTypeErrorName, kThrowNewName, arguments);

+ const String& cls_name = String::Handle(Symbols::TypeError());

+ const String& func_name = String::Handle(Symbols::ThrowNew());

+ return MakeStaticCall(cls_name, func_name, arguments);

}

@@ -6486,9 +6467,10 @@

ArgumentListNode* arguments = new ArgumentListNode(ident_pos);

arguments->Add(new LiteralNode(

TokenPos(), Integer::ZoneHandle(Integer::New(ident_pos))));

- return MakeStaticCall(kStaticResolutionExceptionName,

- kThrowNewName,

- arguments);

+ const String& cls_name =

+ String::Handle(Symbols::StaticResolutionException());

+ const String& func_name = String::Handle(Symbols::ThrowNew());

+ return MakeStaticCall(cls_name, func_name, arguments);

}

CheckFunctionIsCallable(call_pos, func);

@@ -7558,8 +7540,7 @@

ArrayNode* list = new ArrayNode(TokenPos(), type_arguments);

if (!is_empty_literal) {

const bool saved_mode = SetAllowFunctionLiterals(true);

- const String& dst_name = String::ZoneHandle(

- Symbols::New("list literal element"));

+ const String& dst_name = String::ZoneHandle(Symbols::ListLiteralElement());

while (CurrentToken() != Token::kRBRACK) {

const intptr_t element_pos = TokenPos();

AstNode* element = ParseExpr(is_const, kConsumeCascades);

@@ -7617,12 +7598,12 @@

} else {

// Factory call at runtime.

String& list_literal_factory_class_name = String::Handle(

- Symbols::New(kListLiteralFactoryClassName));

+ Symbols::ListLiteralFactoryClass());

const Class& list_literal_factory_class =

Class::Handle(LookupCoreClass(list_literal_factory_class_name));

ASSERT(!list_literal_factory_class.IsNull());

const String& list_literal_factory_name =

- String::Handle(Symbols::New(kListLiteralFactoryName));

+ String::Handle(Symbols::ListLiteralFactory());

const Function& list_literal_factory = Function::ZoneHandle(

list_literal_factory_class.LookupFactory(list_literal_factory_name));

ASSERT(!list_literal_factory.IsNull());

@@ -7742,8 +7723,7 @@

// to the factory to initialize a properly typed map.

ArrayNode* kv_pairs =

new ArrayNode(TokenPos(), TypeArguments::ZoneHandle());

- const String& dst_name = String::ZoneHandle(

- Symbols::New("list literal element"));

+ const String& dst_name = String::ZoneHandle(Symbols::ListLiteralElement());

while (CurrentToken() != Token::kRBRACE) {

AstNode* key = NULL;

if (CurrentToken() == Token::kSTRING) {

@@ -7815,14 +7795,14 @@

// Construct the map object.

const String& immutable_map_class_name =

- String::Handle(Symbols::New(kImmutableMapName));

+ String::Handle(Symbols::ImmutableMap());

const Class& immutable_map_class =

Class::Handle(LookupImplClass(immutable_map_class_name));

ASSERT(!immutable_map_class.IsNull());

ArgumentListNode* constr_args = new ArgumentListNode(TokenPos());

constr_args->Add(new LiteralNode(literal_pos, key_value_array));

const String& constr_name =

- String::Handle(Symbols::New(kImmutableMapConstructorName));

+ String::Handle(Symbols::ImmutableMapConstructor());

const Function& map_constr = Function::ZoneHandle(

immutable_map_class.LookupConstructor(constr_name));

ASSERT(!map_constr.IsNull());

@@ -7841,12 +7821,12 @@

} else {

// Factory call at runtime.

String& map_literal_factory_class_name = String::Handle(

- Symbols::New(kMapLiteralFactoryClassName));

+ Symbols::MapLiteralFactoryClass());

const Class& map_literal_factory_class =

Class::Handle(LookupCoreClass(map_literal_factory_class_name));

ASSERT(!map_literal_factory_class.IsNull());

const String& map_literal_factory_name =

- String::Handle(Symbols::New(kMapLiteralFactoryName));

+ String::Handle(Symbols::MapLiteralFactory());

const Function& map_literal_factory = Function::ZoneHandle(

map_literal_factory_class.LookupFactory(map_literal_factory_name));

ASSERT(!map_literal_factory.IsNull());

@@ -8146,11 +8126,10 @@

String& Parser::Interpolate(ArrayNode* values) {

- const String& class_name =

- String::Handle(Symbols::New(kStringClassName));

+ const String& class_name = String::Handle(Symbols::StringBase());

const Class& cls = Class::Handle(LookupImplClass(class_name));

ASSERT(!cls.IsNull());

- const String& func_name = String::Handle(Symbols::New(kInterpolateName));

+ const String& func_name = String::Handle(Symbols::Interpolate());

const Function& func =

Function::Handle(cls.LookupStaticFunction(func_name));

ASSERT(!func.IsNull());

@@ -8240,9 +8219,9 @@

ArgumentListNode* interpolate_arg =

new ArgumentListNode(values->token_pos());

interpolate_arg->Add(values);

- primary = MakeStaticCall(kStringClassName,

- kInterpolateName,

- interpolate_arg);

+ const String& cls_name = String::Handle(Symbols::StringBase());

+ const String& func_name = String::Handle(Symbols::Interpolate());

+ primary = MakeStaticCall(cls_name, func_name, interpolate_arg);

}

return primary;

}

@@ -8266,7 +8245,7 @@

return result;

}

// String interpolation needed.

- String& result = String::ZoneHandle(String::New(""));

+ String& result = String::ZoneHandle(Symbols::Empty());

String& resolved_name = String::Handle();

while (CurrentToken() == Token::kSTRING) {

result = String::Concat(result, *CurrentLiteral());

@@ -8351,7 +8330,7 @@

}

ASSERT(primary != NULL);

} else if (CurrentToken() == Token::kTHIS) {

- const String& this_name = String::Handle(Symbols::New(kThisName));

+ const String& this_name = String::Handle(Symbols::This());

LocalVariable* local = LookupLocalScope(this_name);

if (local == NULL) {

ErrorMsg("receiver 'this' is not in scope");

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