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#pragma once
#include <mbgl/style/expression/expression.hpp>
#include <string>
namespace mbgl {
namespace style {
namespace expression {
class Error : public Expression {
public:
Error(std::string message_)
: Expression(type::Error),
message(std::move(message_)) {}
void eachChild(const std::function<void(const Expression&)>&) const override {}
bool operator==(const Expression& e) const override {
return dynamic_cast<const Error*>(&e);
}
EvaluationResult evaluate(const EvaluationContext&) const override {
return EvaluationError{message};
}
std::vector<optional<Value>> possibleOutputs() const override {
return {};
}
std::string getOperator() const override { return "error"; }
private:
std::string message;
};
} // namespace expression
} // namespace style
} // namespace mbgl
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