33 lines
925 B
C++
33 lines
925 B
C++
#pragma once
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#include <mbgl/style/expression/expression.hpp>
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#include <mbgl/style/conversion.hpp>
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#include <mbgl/style/expression/parsing_context.hpp>
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#include <memory>
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#include <vector>
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namespace mbgl {
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namespace style {
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namespace expression {
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class Length : public Expression {
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public:
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Length(std::unique_ptr<Expression> input);
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static ParseResult parse(const mbgl::style::conversion::Convertible& value, ParsingContext& ctx);
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EvaluationResult evaluate(const EvaluationContext& params) const override;
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void eachChild(const std::function<void(const Expression&)>& visit) const override;
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bool operator==(const Expression& e) const override;
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std::vector<std::optional<Value>> possibleOutputs() const override;
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std::string getOperator() const override { return "length"; }
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private:
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std::unique_ptr<Expression> input;
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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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