63 lines
1.7 KiB
C++
63 lines
1.7 KiB
C++
// Copyright 2020 The Tint Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_AST_LITERAL_H_
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#define SRC_AST_LITERAL_H_
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#include <string>
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namespace tint {
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namespace ast {
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class BoolLiteral;
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class FloatLiteral;
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class IntLiteral;
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class UintLiteral;
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/// Base class for a literal value
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class Literal {
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public:
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virtual ~Literal();
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/// @returns true if this is a bool literal
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virtual bool IsBool() const { return false; }
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/// @returns true if this is a float literal
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virtual bool IsFloat() const { return false; }
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/// @returns true if this is a signed int literal
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virtual bool IsInt() const { return false; }
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/// @returns true if this is a unsigned int literal
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virtual bool IsUint() const { return false; }
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/// @returns the literal as a boolean literal
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BoolLiteral* AsBool();
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/// @returns the literal as a float literal
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FloatLiteral* AsFloat();
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/// @returns the literal as a int literal
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IntLiteral* AsInt();
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/// @returns the literal as a unsigned int literal
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UintLiteral* AsUint();
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/// @returns the literal as a string
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virtual std::string to_str() const = 0;
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protected:
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/// Constructor
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Literal();
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};
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} // namespace ast
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} // namespace tint
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#endif // SRC_AST_LITERAL_H_
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