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#pragma once
#include <mbgl/style/expression/expression.hpp>
#include <mbgl/style/expression/formatted.hpp>
#include <mbgl/style/expression/parsing_context.hpp>
#include <mbgl/style/conversion.hpp>
#include <memory>
namespace mbgl {
namespace style {
namespace expression {
struct FormatExpressionSection {
FormatExpressionSection(std::unique_ptr<Expression> text_,
optional<std::unique_ptr<Expression>> fontScale_,
optional<std::unique_ptr<Expression>> textFont_);
std::shared_ptr<Expression> text;
optional<std::shared_ptr<Expression>> fontScale;
optional<std::shared_ptr<Expression>> textFont;
};
class FormatExpression : public Expression {
public:
FormatExpression(std::vector<FormatExpressionSection> sections);
EvaluationResult evaluate(const EvaluationContext&) const override;
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;
std::vector<optional<Value>> possibleOutputs() const override {
// Technically the combinatoric set of all children
// Usually, this.text will be undefined anyway
return { nullopt };
}
mbgl::Value serialize() const override;
std::string getOperator() const override { return "format"; }
private:
std::vector<FormatExpressionSection> sections;
std::unique_ptr<Expression> text;
optional<std::unique_ptr<Expression>> fontScale;
optional<std::unique_ptr<Expression>> textFont;
};
} // namespace expression
} // namespace style
} // namespace mbgl
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