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#pragma once
#include <mbgl/style/expression/value.hpp>
#include <mbgl/style/expression/expression.hpp>
#include <mbgl/style/expression/interpolator.hpp>
#include <memory>
#include <string>
#include <initializer_list>
namespace mbgl {
namespace style {
namespace expression {
namespace dsl {
// This convenience API does little to no expression validation or type-checking, and is intended for
// use only by test and other non-production code.
std::unique_ptr<Expression> error(std::string);
std::unique_ptr<Expression> literal(const char* value);
std::unique_ptr<Expression> literal(Value value);
std::unique_ptr<Expression> literal(std::initializer_list<double> value);
std::unique_ptr<Expression> literal(std::initializer_list<const char *> value);
std::unique_ptr<Expression> number(std::unique_ptr<Expression>);
std::unique_ptr<Expression> string(std::unique_ptr<Expression>);
std::unique_ptr<Expression> boolean(std::unique_ptr<Expression>);
std::unique_ptr<Expression> toColor(const char* value);
std::unique_ptr<Expression> toColor(std::unique_ptr<Expression>);
std::unique_ptr<Expression> get(const char* value);
std::unique_ptr<Expression> get(std::unique_ptr<Expression>);
std::unique_ptr<Expression> id();
std::unique_ptr<Expression> zoom();
std::unique_ptr<Expression> eq(std::unique_ptr<Expression>,
std::unique_ptr<Expression>);
std::unique_ptr<Expression> ne(std::unique_ptr<Expression>,
std::unique_ptr<Expression>);
std::unique_ptr<Expression> gt(std::unique_ptr<Expression>,
std::unique_ptr<Expression>);
std::unique_ptr<Expression> lt(std::unique_ptr<Expression>,
std::unique_ptr<Expression>);
std::unique_ptr<Expression> step(std::unique_ptr<Expression> input,
std::unique_ptr<Expression> output0,
double input1, std::unique_ptr<Expression> output1);
Interpolator linear();
Interpolator exponential(double base);
Interpolator cubicBezier(double x1, double y1, double x2, double y2);
std::unique_ptr<Expression> interpolate(Interpolator interpolator,
std::unique_ptr<Expression> input,
double input1, std::unique_ptr<Expression> output1);
std::unique_ptr<Expression> interpolate(Interpolator interpolator,
std::unique_ptr<Expression> input,
double input1, std::unique_ptr<Expression> output1,
double input2, std::unique_ptr<Expression> output2);
std::unique_ptr<Expression> interpolate(Interpolator interpolator,
std::unique_ptr<Expression> input,
double input1, std::unique_ptr<Expression> output1,
double input2, std::unique_ptr<Expression> output2,
double input3, std::unique_ptr<Expression> output3);
} // namespace dsl
} // namespace expression
} // namespace style
} // namespace mbgl
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