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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_TINT_AST_FLOAT_LITERAL_EXPRESSION_H_
#define SRC_TINT_AST_FLOAT_LITERAL_EXPRESSION_H_
#include <string>
#include "src/tint/ast/literal_expression.h"
namespace tint::ast {
/// A float literal
class FloatLiteralExpression final
: public utils::Castable<FloatLiteralExpression, LiteralExpression> {
public:
/// Literal suffix
enum class Suffix {
/// No suffix
kNone,
/// 'f' suffix (f32)
kF,
/// 'h' suffix (f16)
kH,
};
/// Constructor
/// @param pid the identifier of the program that owns this node
/// @param nid the unique node identifier
/// @param src the source of this node
/// @param val the literal value
/// @param suf the literal suffix
FloatLiteralExpression(ProgramID pid, NodeID nid, const Source& src, double val, Suffix suf);
~FloatLiteralExpression() override;
/// Clones this node and all transitive child nodes using the `CloneContext`
/// `ctx`.
/// @param ctx the clone context
/// @return the newly cloned node
const FloatLiteralExpression* Clone(CloneContext* ctx) const override;
/// The literal value
const double value;
/// The literal suffix
const Suffix suffix;
};
/// Writes the float literal suffix to the stream.
/// @param out the stream to write to
/// @param suffix the suffix to write
/// @returns out so calls can be chained
utils::StringStream& operator<<(utils::StringStream& out, FloatLiteralExpression::Suffix suffix);
} // namespace tint::ast
#endif // SRC_TINT_AST_FLOAT_LITERAL_EXPRESSION_H_