| 1 | #include <mbgl/style/conversion/constant.hpp> |
|---|---|
| 2 | |
| 3 | namespace mbgl { |
| 4 | namespace style { |
| 5 | namespace conversion { |
| 6 | |
| 7 | optional<bool> Converter<bool>::operator()(const Convertible& value, Error& error) const { |
| 8 | optional<bool> converted = toBool(v: value); |
| 9 | if (!converted) { |
| 10 | error = { .message: "value must be a boolean"}; |
| 11 | return {}; |
| 12 | } |
| 13 | return *converted; |
| 14 | } |
| 15 | |
| 16 | optional<float> Converter<float>::operator()(const Convertible& value, Error& error) const { |
| 17 | optional<float> converted = toNumber(v: value); |
| 18 | if (!converted) { |
| 19 | error = { .message: "value must be a number"}; |
| 20 | return {}; |
| 21 | } |
| 22 | return *converted; |
| 23 | } |
| 24 | |
| 25 | optional<std::string> Converter<std::string>::operator()(const Convertible& value, Error& error) const { |
| 26 | optional<std::string> converted = toString(v: value); |
| 27 | if (!converted) { |
| 28 | error = { .message: "value must be a string"}; |
| 29 | return {}; |
| 30 | } |
| 31 | return *converted; |
| 32 | } |
| 33 | |
| 34 | optional<Color> Converter<Color>::operator()(const Convertible& value, Error& error) const { |
| 35 | optional<std::string> string = toString(v: value); |
| 36 | if (!string) { |
| 37 | error = { .message: "value must be a string"}; |
| 38 | return {}; |
| 39 | } |
| 40 | |
| 41 | optional<Color> color = Color::parse(*string); |
| 42 | if (!color) { |
| 43 | error = { .message: "value must be a valid color"}; |
| 44 | return {}; |
| 45 | } |
| 46 | |
| 47 | return *color; |
| 48 | } |
| 49 | |
| 50 | optional<std::vector<float>> Converter<std::vector<float>>::operator()(const Convertible& value, Error& error) const { |
| 51 | if (!isArray(v: value)) { |
| 52 | error = { .message: "value must be an array"}; |
| 53 | return {}; |
| 54 | } |
| 55 | |
| 56 | std::vector<float> result; |
| 57 | result.reserve(n: arrayLength(v: value)); |
| 58 | |
| 59 | for (std::size_t i = 0; i < arrayLength(v: value); ++i) { |
| 60 | optional<float> number = toNumber(v: arrayMember(v: value, i)); |
| 61 | if (!number) { |
| 62 | error = { .message: "value must be an array of numbers"}; |
| 63 | return {}; |
| 64 | } |
| 65 | result.push_back(x: *number); |
| 66 | } |
| 67 | |
| 68 | return result; |
| 69 | } |
| 70 | |
| 71 | optional<std::vector<std::string>> Converter<std::vector<std::string>>::operator()(const Convertible& value, Error& error) const { |
| 72 | if (!isArray(v: value)) { |
| 73 | error = { .message: "value must be an array"}; |
| 74 | return {}; |
| 75 | } |
| 76 | |
| 77 | std::vector<std::string> result; |
| 78 | result.reserve(n: arrayLength(v: value)); |
| 79 | |
| 80 | for (std::size_t i = 0; i < arrayLength(v: value); ++i) { |
| 81 | optional<std::string> string = toString(v: arrayMember(v: value, i)); |
| 82 | if (!string) { |
| 83 | error = { .message: "value must be an array of strings"}; |
| 84 | return {}; |
| 85 | } |
| 86 | result.push_back(x: *string); |
| 87 | } |
| 88 | |
| 89 | return result; |
| 90 | } |
| 91 | |
| 92 | } // namespace conversion |
| 93 | } // namespace style |
| 94 | } // namespace mbgl |
| 95 |