1 #pragma once
2
3 #include <mbgl/style/expression/value.hpp>
4 #include <mbgl/style/expression/expression.hpp>
5 #include <mbgl/style/expression/interpolator.hpp>
6 #include <mbgl/util/ignore.hpp>
7
8 #include <memory>
9 #include <string>
10 #include <initializer_list>
11
12 namespace mbgl {
13 namespace style {
14 namespace expression {
15 namespace dsl {
16
17 // This convenience API does little to no expression validation or type-checking, and is intended for
18 // use only by test and other non-production code.
19
20 template <class... Args>
vec(Args...args)21 std::vector<std::unique_ptr<Expression>> vec(Args... args) {
22 std::vector<std::unique_ptr<Expression>> result;
23 util::ignore({ (result.push_back(std::move(args)), 0)... });
24 return result;
25 }
26
27 std::unique_ptr<Expression> error(std::string);
28
29 std::unique_ptr<Expression> literal(const char* value);
30 std::unique_ptr<Expression> literal(Value value);
31 std::unique_ptr<Expression> literal(std::initializer_list<double> value);
32 std::unique_ptr<Expression> literal(std::initializer_list<const char *> value);
33
34 std::unique_ptr<Expression> number(std::unique_ptr<Expression>);
35 std::unique_ptr<Expression> string(std::unique_ptr<Expression>);
36 std::unique_ptr<Expression> boolean(std::unique_ptr<Expression>);
37
38 std::unique_ptr<Expression> toColor(std::unique_ptr<Expression>);
39 std::unique_ptr<Expression> toString(std::unique_ptr<Expression>);
40
41 std::unique_ptr<Expression> get(const char* value);
42 std::unique_ptr<Expression> get(std::unique_ptr<Expression>);
43
44 std::unique_ptr<Expression> id();
45 std::unique_ptr<Expression> zoom();
46
47 std::unique_ptr<Expression> eq(std::unique_ptr<Expression>,
48 std::unique_ptr<Expression>);
49 std::unique_ptr<Expression> ne(std::unique_ptr<Expression>,
50 std::unique_ptr<Expression>);
51 std::unique_ptr<Expression> gt(std::unique_ptr<Expression>,
52 std::unique_ptr<Expression>);
53 std::unique_ptr<Expression> lt(std::unique_ptr<Expression>,
54 std::unique_ptr<Expression>);
55
56 std::unique_ptr<Expression> step(std::unique_ptr<Expression> input,
57 std::unique_ptr<Expression> output0,
58 double input1, std::unique_ptr<Expression> output1);
59
60 Interpolator linear();
61 Interpolator exponential(double base);
62 Interpolator cubicBezier(double x1, double y1, double x2, double y2);
63
64 std::unique_ptr<Expression> interpolate(Interpolator interpolator,
65 std::unique_ptr<Expression> input,
66 double input1, std::unique_ptr<Expression> output1);
67
68 std::unique_ptr<Expression> interpolate(Interpolator interpolator,
69 std::unique_ptr<Expression> input,
70 double input1, std::unique_ptr<Expression> output1,
71 double input2, std::unique_ptr<Expression> output2);
72
73 std::unique_ptr<Expression> interpolate(Interpolator interpolator,
74 std::unique_ptr<Expression> input,
75 double input1, std::unique_ptr<Expression> output1,
76 double input2, std::unique_ptr<Expression> output2,
77 double input3, std::unique_ptr<Expression> output3);
78
79 std::unique_ptr<Expression> concat(std::vector<std::unique_ptr<Expression>> inputs);
80
81 } // namespace dsl
82 } // namespace expression
83 } // namespace style
84 } // namespace mbgl
85