36 lines
1.1 KiB
C++
36 lines
1.1 KiB
C++
#pragma once
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#include <mbgl/style/expression/collator_expression.hpp>
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#include <mbgl/style/expression/expression.hpp>
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#include <mbgl/style/expression/parsing_context.hpp>
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#include <mbgl/style/conversion.hpp>
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#include <memory>
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namespace mbgl {
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namespace style {
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namespace expression {
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class Equals : public Expression {
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public:
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Equals(std::unique_ptr<Expression> lhs, std::unique_ptr<Expression> rhs, optional<std::unique_ptr<Expression>> collator, bool negate);
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static ParseResult parse(const mbgl::style::conversion::Convertible&, ParsingContext&);
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void eachChild(const std::function<void(const Expression&)>& visit) const override;
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bool operator==(const Expression&) const override;
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EvaluationResult evaluate(const EvaluationContext&) const override;
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std::vector<optional<Value>> possibleOutputs() const override;
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std::string getOperator() const override { return negate ? "!=" : "=="; }
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private:
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std::unique_ptr<Expression> lhs;
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std::unique_ptr<Expression> rhs;
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optional<std::unique_ptr<Expression>> collator;
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bool negate;
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};
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} // namespace expression
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} // namespace style
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} // namespace mbgl
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