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// Copyright 2020 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_AST_CALL_EXPRESSION_H_
#define SRC_AST_CALL_EXPRESSION_H_
#include "src/ast/expression.h"
namespace tint {
namespace ast {
// Forward declarations.
class Type;
class IdentifierExpression;
/// A call expression - represents either a:
/// * sem::Function
/// * sem::Intrinsic
/// * sem::TypeConstructor
/// * sem::TypeConversion
class CallExpression : public Castable<CallExpression, Expression> {
public:
/// Constructor
/// @param program_id the identifier of the program that owns this node
/// @param source the call expression source
/// @param name the function or type name
/// @param args the arguments
CallExpression(ProgramID program_id,
const Source& source,
const IdentifierExpression* name,
ExpressionList args);
/// Constructor
/// @param program_id the identifier of the program that owns this node
/// @param source the call expression source
/// @param type the type
/// @param args the arguments
CallExpression(ProgramID program_id,
const Source& source,
const Type* type,
ExpressionList args);
/// Move constructor
CallExpression(CallExpression&&);
~CallExpression() override;
/// Clones this node and all transitive child nodes using the `CloneContext`
/// `ctx`.
/// @param ctx the clone context
/// @return the newly cloned node
const CallExpression* Clone(CloneContext* ctx) const override;
/// Target is either an identifier, or a Type.
/// One of these must be nullptr and the other a non-nullptr.
struct Target {
/// name is a function or intrinsic to call, or type name to construct or
/// cast-to
const IdentifierExpression* name = nullptr;
/// type to construct or cast-to
const Type* type = nullptr;
};
/// The target function
const Target target;
/// The arguments
const ExpressionList args;
};
} // namespace ast
} // namespace tint
#endif // SRC_AST_CALL_EXPRESSION_H_