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// Copyright 2015 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef V8_TYPING_ASM_H_
#define V8_TYPING_ASM_H_
#include "src/allocation.h"
#include "src/ast.h"
#include "src/effects.h"
#include "src/type-info.h"
#include "src/types.h"
#include "src/zone.h"
namespace v8 {
namespace internal {
class ZoneTypeCache;
class AsmTyper : public AstVisitor {
public:
explicit AsmTyper(Isolate* isolate, Zone* zone, Script* script,
FunctionLiteral* root);
bool Validate();
const char* error_message() { return error_message_; }
DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();
private:
Script* script_;
FunctionLiteral* root_;
bool valid_;
// Information for bi-directional typing with a cap on nesting depth.
Type* expected_type_;
Type* computed_type_;
int intish_; // How many ops we've gone without a x|0.
Type* return_type_; // Return type of last function.
size_t array_size_; // Array size of last ArrayLiteral.
typedef ZoneMap<std::string, Type*> ObjectTypeMap;
ObjectTypeMap stdlib_types_;
ObjectTypeMap stdlib_heap_types_;
ObjectTypeMap stdlib_math_types_;
// Map from Variable* to global/local variable Type*.
ZoneHashMap global_variable_type_;
ZoneHashMap local_variable_type_;
bool in_function_; // In module function?
bool building_function_tables_;
ZoneTypeCache const& cache_;
static const int kErrorMessageLimit = 100;
char error_message_[kErrorMessageLimit];
static const int kMaxUncombinedAdditiveSteps = 1 << 20;
static const int kMaxUncombinedMultiplicativeSteps = 1;
void InitializeStdlib();
void VisitDeclarations(ZoneList<Declaration*>* d) override;
void VisitStatements(ZoneList<Statement*>* s) override;
void VisitExpressionAnnotation(Expression* e);
void VisitFunctionAnnotation(FunctionLiteral* f);
void VisitAsmModule(FunctionLiteral* f);
void VisitHeapAccess(Property* expr);
int ElementShiftSize(Type* type);
void SetType(Variable* variable, Type* type);
Type* GetType(Variable* variable);
Type* LibType(ObjectTypeMap map, Handle<String> name);
void SetResult(Expression* expr, Type* type);
void IntersectResult(Expression* expr, Type* type);
void VisitWithExpectation(Expression* expr, Type* expected_type,
const char* msg);
#define DECLARE_VISIT(type) virtual void Visit##type(type* node) override;
AST_NODE_LIST(DECLARE_VISIT)
#undef DECLARE_VISIT
DISALLOW_COPY_AND_ASSIGN(AsmTyper);
};
}
} // namespace v8::internal
#endif // V8_TYPING_ASM_H_
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