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// Copyright 2021 The Tint Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SRC_TINT_SEM_TYPE_MAPPINGS_H_
#define SRC_TINT_SEM_TYPE_MAPPINGS_H_
#include <type_traits>
#include "src/tint/sem/builtin_enum_expression.h"
// Forward declarations
namespace tint {
class CastableBase;
} // namespace tint
namespace tint::ast {
class AccessorExpression;
class BinaryExpression;
class BitcastExpression;
class BuiltinAttribute;
class CallExpression;
class Expression;
class ForLoopStatement;
class Function;
class IfStatement;
class LiteralExpression;
class Node;
class Override;
class PhonyExpression;
class Statement;
class Struct;
class StructMember;
class SwitchStatement;
class TypeDecl;
class Variable;
class WhileStatement;
class UnaryOpExpression;
} // namespace tint::ast
namespace tint::builtin {
enum class BuiltinValue;
}
namespace tint::sem {
class Expression;
class ForLoopStatement;
class Function;
class GlobalVariable;
class IfStatement;
class Node;
class Statement;
class Struct;
class StructMember;
class SwitchStatement;
class ValueExpression;
class Variable;
class WhileStatement;
} // namespace tint::sem
namespace tint::type {
class Array;
class Type;
} // namespace tint::type
namespace tint::sem {
/// TypeMappings is a struct that holds undefined `operator()` methods that's
/// used by SemanticNodeTypeFor to map AST / type node types to their
/// corresponding semantic node types. The standard operator overload resolving
/// rules will be used to infer the return type based on the argument type.
struct TypeMappings {
//! @cond Doxygen_Suppress
BuiltinEnumExpression<builtin::BuiltinValue>* operator()(ast::BuiltinAttribute*);
CastableBase* operator()(ast::Node*);
Expression* operator()(ast::Expression*);
ForLoopStatement* operator()(ast::ForLoopStatement*);
Function* operator()(ast::Function*);
GlobalVariable* operator()(ast::Override*);
IfStatement* operator()(ast::IfStatement*);
Statement* operator()(ast::Statement*);
Struct* operator()(ast::Struct*);
StructMember* operator()(ast::StructMember*);
SwitchStatement* operator()(ast::SwitchStatement*);
type::Type* operator()(ast::TypeDecl*);
ValueExpression* operator()(ast::AccessorExpression*);
ValueExpression* operator()(ast::BinaryExpression*);
ValueExpression* operator()(ast::BitcastExpression*);
ValueExpression* operator()(ast::CallExpression*);
ValueExpression* operator()(ast::LiteralExpression*);
ValueExpression* operator()(ast::PhonyExpression*);
ValueExpression* operator()(ast::UnaryOpExpression*);
Variable* operator()(ast::Variable*);
WhileStatement* operator()(ast::WhileStatement*);
//! @endcond
};
/// SemanticNodeTypeFor resolves to the appropriate sem::Node type for the
/// AST node `AST`.
template <typename AST>
using SemanticNodeTypeFor =
typename std::remove_pointer<decltype(TypeMappings()(std::declval<AST*>()))>::type;
} // namespace tint::sem
#endif // SRC_TINT_SEM_TYPE_MAPPINGS_H_