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// Copyright 2017 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_TORQUE_DECLARATION_VISITOR_H_
#define V8_TORQUE_DECLARATION_VISITOR_H_
#include <set>
#include <string>
#include "src/base/macros.h"
#include "src/torque/declarations.h"
#include "src/torque/global-context.h"
#include "src/torque/types.h"
#include "src/torque/utils.h"
namespace v8 {
namespace internal {
namespace torque {
Namespace* GetOrCreateNamespace(const std::string& name);
class PredeclarationVisitor {
public:
static void Predeclare(Ast* ast) {
CurrentScope::Scope current_namespace(GlobalContext::GetDefaultNamespace());
for (Declaration* child : ast->declarations()) Predeclare(child);
}
static void ResolvePredeclarations();
private:
static void Predeclare(Declaration* decl);
static void Predeclare(NamespaceDeclaration* decl) {
CurrentScope::Scope current_scope(GetOrCreateNamespace(decl->name));
for (Declaration* child : decl->declarations) Predeclare(child);
}
static void Predeclare(TypeDeclaration* decl) {
Declarations::PredeclareTypeAlias(decl->name, decl, false);
}
static void Predeclare(StructDeclaration* decl) {
if (decl->IsGeneric()) {
Declarations::DeclareGenericStructType(decl->name->value, decl);
} else {
Declarations::PredeclareTypeAlias(decl->name, decl, false);
}
}
static void Predeclare(GenericDeclaration* decl) {
Declarations::DeclareGeneric(decl->callable->name, decl);
}
};
class DeclarationVisitor {
public:
static void Visit(Ast* ast) {
CurrentScope::Scope current_namespace(GlobalContext::GetDefaultNamespace());
for (Declaration* child : ast->declarations()) Visit(child);
}
static void Visit(Declaration* decl);
static void Visit(NamespaceDeclaration* decl) {
CurrentScope::Scope current_scope(GetOrCreateNamespace(decl->name));
for (Declaration* child : decl->declarations) Visit(child);
}
static void Visit(TypeDeclaration* decl) {
// Looking up the type will trigger type computation; this ensures errors
// are reported even if the type is unused.
Declarations::LookupType(decl->name);
}
static void Visit(StructDeclaration* decl) {
if (!decl->IsGeneric()) {
Declarations::LookupType(decl->name);
}
}
static Builtin* CreateBuiltin(BuiltinDeclaration* decl,
std::string external_name,
std::string readable_name, Signature signature,
base::Optional<Statement*> body);
static void Visit(ExternalBuiltinDeclaration* decl,
const Signature& signature,
base::Optional<Statement*> body) {
Declarations::Declare(
decl->name,
CreateBuiltin(decl, decl->name, decl->name, signature, base::nullopt));
}
static void Visit(ExternalRuntimeDeclaration* decl, const Signature& sig,
base::Optional<Statement*> body);
static void Visit(ExternalMacroDeclaration* decl, const Signature& sig,
base::Optional<Statement*> body);
static void Visit(TorqueBuiltinDeclaration* decl, const Signature& signature,
base::Optional<Statement*> body);
static void Visit(TorqueMacroDeclaration* decl, const Signature& signature,
base::Optional<Statement*> body);
static void Visit(IntrinsicDeclaration* decl, const Signature& signature,
base::Optional<Statement*> body);
static void Visit(CallableNode* decl, const Signature& signature,
base::Optional<Statement*> body);
static void Visit(ConstDeclaration* decl);
static void Visit(StandardDeclaration* decl);
static void Visit(GenericDeclaration* decl) {
// The PredeclarationVisitor already handled this case.
}
static void Visit(SpecializationDeclaration* decl);
static void Visit(ExternConstDeclaration* decl);
static void Visit(CppIncludeDeclaration* decl);
static Signature MakeSpecializedSignature(const SpecializationKey& key);
static Callable* SpecializeImplicit(const SpecializationKey& key);
static Callable* Specialize(
const SpecializationKey& key, CallableNode* declaration,
base::Optional<const CallableNodeSignature*> signature,
base::Optional<Statement*> body, SourcePosition position);
private:
static void DeclareSpecializedTypes(const SpecializationKey& key);
};
} // namespace torque
} // namespace internal
} // namespace v8
#endif // V8_TORQUE_DECLARATION_VISITOR_H_
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