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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_LANG_WGSL_AST_INT_LITERAL_EXPRESSION_H_
#define SRC_TINT_LANG_WGSL_AST_INT_LITERAL_EXPRESSION_H_
#include "src/tint/lang/wgsl/ast/literal_expression.h"
namespace tint::ast {
/// An integer literal. The literal may have an 'i', 'u' or no suffix.
class IntLiteralExpression final : public Castable<IntLiteralExpression, LiteralExpression> {
public:
/// Literal suffix
enum class Suffix {
/// No suffix
kNone,
/// 'i' suffix (i32)
kI,
/// 'u' suffix (u32)
kU,
};
/// 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
IntLiteralExpression(GenerationID pid, NodeID nid, const Source& src, int64_t val, Suffix suf);
~IntLiteralExpression() override;
/// Clones this node and all transitive child nodes using the `CloneContext`
/// `ctx`.
/// @param ctx the clone context
/// @return the newly cloned node
const IntLiteralExpression* Clone(CloneContext& ctx) const override;
/// The literal value
const int64_t value;
/// The literal suffix
const Suffix suffix;
};
/// @param suffix the enum value
/// @returns the string for the given enum value
std::string_view ToString(IntLiteralExpression::Suffix suffix);
/// Writes the integer 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
template <typename STREAM, typename = traits::EnableIfIsOStream<STREAM>>
auto& operator<<(STREAM& out, IntLiteralExpression::Suffix suffix) {
return out << ToString(suffix);
}
} // namespace tint::ast
#endif // SRC_TINT_LANG_WGSL_AST_INT_LITERAL_EXPRESSION_H_