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#pragma once
#include <mbgl/style/expression/expression.hpp>
#include <mbgl/style/expression/parsing_context.hpp>
#include <mbgl/style/conversion.hpp>
#include <memory>
namespace mbgl {
namespace style {
namespace expression {
class Literal : public Expression {
public:
Literal(Value value_)
: Expression(typeOf(value_))
, value(value_)
{}
Literal(type::Array type_, std::vector<Value> value_)
: Expression(type_)
, value(value_)
{}
EvaluationResult evaluate(const EvaluationContext&) const override {
return value;
}
static ParseResult parse(const mbgl::style::conversion::Convertible&, ParsingContext&);
void eachChild(const std::function<void(const Expression&)>&) const override {}
bool operator==(const Expression& e) const override {
if (auto rhs = dynamic_cast<const Literal*>(&e)) {
return value == rhs->value;
}
return false;
}
std::vector<optional<Value>> possibleOutputs() const override {
return {{ value }};
}
Value getValue() const {
return value;
}
mbgl::Value serialize() const override;
std::string getOperator() const override { return "literal"; }
private:
Value value;
};
std::unique_ptr<Literal> createLiteral(const char* value);
std::unique_ptr<Literal> createLiteral(Value value);
} // namespace expression
} // namespace style
} // namespace mbgl
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