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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/ast.h"
#include "src/effects.h"
#include "src/type-info.h"
#include "src/types.h"
#include "src/zone.h"
namespace v8 {
namespace internal {
class TypeCache;
class AsmTyper : public AstVisitor {
public:
explicit AsmTyper(Isolate* isolate, Zone* zone, Script* script,
FunctionLiteral* root);
bool Validate();
void set_allow_simd(bool simd) { allow_simd_ = simd; }
const char* error_message() { return error_message_; }
enum StandardMember {
kNone = 0,
kStdlib,
kInfinity,
kNaN,
kMathAcos,
kMathAsin,
kMathAtan,
kMathCos,
kMathSin,
kMathTan,
kMathExp,
kMathLog,
kMathCeil,
kMathFloor,
kMathSqrt,
kMathAbs,
kMathMin,
kMathMax,
kMathAtan2,
kMathPow,
kMathImul,
kMathFround,
kMathE,
kMathLN10,
kMathLN2,
kMathLOG2E,
kMathLOG10E,
kMathPI,
kMathSQRT1_2,
kMathSQRT2,
};
StandardMember VariableAsStandardMember(Variable* variable);
DEFINE_AST_VISITOR_SUBCLASS_MEMBERS();
private:
Zone* zone_;
Isolate* isolate_;
Script* script_;
FunctionLiteral* root_;
bool valid_;
bool allow_simd_;
struct VariableInfo : public ZoneObject {
Type* type;
bool is_check_function;
bool is_constructor_function;
StandardMember standard_member;
VariableInfo()
: type(NULL),
is_check_function(false),
is_constructor_function(false),
standard_member(kNone) {}
explicit VariableInfo(Type* t)
: type(t),
is_check_function(false),
is_constructor_function(false),
standard_member(kNone) {}
};
// Information for bi-directional typing with a cap on nesting depth.
Type* expected_type_;
Type* computed_type_;
VariableInfo* property_info_;
int32_t 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, VariableInfo*> ObjectTypeMap;
ObjectTypeMap stdlib_types_;
ObjectTypeMap stdlib_heap_types_;
ObjectTypeMap stdlib_math_types_;
#define V(NAME, Name, name, lane_count, lane_type) \
ObjectTypeMap stdlib_simd_##name##_types_; \
VariableInfo* stdlib_simd_##name##_constructor_type_;
SIMD128_TYPES(V)
#undef V
// 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_;
bool visiting_exports_;
TypeCache 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 InitializeStdlibSIMD();
void VisitDeclarations(ZoneList<Declaration*>* d) override;
void VisitStatements(ZoneList<Statement*>* s) override;
void VisitExpressionAnnotation(Expression* e, Variable* var, bool is_return);
void VisitFunctionAnnotation(FunctionLiteral* f);
void VisitAsmModule(FunctionLiteral* f);
void VisitHeapAccess(Property* expr, bool assigning, Type* assignment_type);
void CheckPolymorphicStdlibArguments(enum StandardMember standard_member,
ZoneList<Expression*>* args);
Expression* GetReceiverOfPropertyAccess(Expression* expr, const char* name);
bool IsMathObject(Expression* expr);
bool IsSIMDObject(Expression* expr);
bool IsSIMDTypeObject(Expression* expr, const char* name);
bool IsStdlibObject(Expression* expr);
void VisitSIMDProperty(Property* expr);
int ElementShiftSize(Type* type);
Type* StorageType(Type* type);
void SetType(Variable* variable, Type* type);
Type* GetType(Variable* variable);
VariableInfo* GetVariableInfo(Variable* variable, bool setting);
void SetVariableInfo(Variable* variable, const VariableInfo* info);
VariableInfo* LibType(ObjectTypeMap* map, Handle<String> name);
void VisitLibraryAccess(ObjectTypeMap* map, Property* expr);
void SetResult(Expression* expr, Type* type);
void IntersectResult(Expression* expr, Type* type);
void VisitWithExpectation(Expression* expr, Type* expected_type,
const char* msg);
void VisitLiteral(Literal* expr, bool is_return);
void VisitVariableProxy(VariableProxy* expr, bool assignment);
void VisitIntegerBitwiseOperator(BinaryOperation* expr, Type* left_expected,
Type* right_expected, Type* result_type,
bool conversion);
Zone* zone() const { return zone_; }
#define DECLARE_VISIT(type) void Visit##type(type* node) override;
AST_NODE_LIST(DECLARE_VISIT)
#undef DECLARE_VISIT
DISALLOW_COPY_AND_ASSIGN(AsmTyper);
};
} // namespace internal
} // namespace v8
#endif // V8_TYPING_ASM_H_
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