diff options
Diffstat (limited to 'include/mbgl/style/expression/at.hpp')
-rw-r--r-- | include/mbgl/style/expression/at.hpp | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/include/mbgl/style/expression/at.hpp b/include/mbgl/style/expression/at.hpp new file mode 100644 index 0000000000..e3eefa4fe8 --- /dev/null +++ b/include/mbgl/style/expression/at.hpp @@ -0,0 +1,38 @@ +#pragma once + +#include <mbgl/style/expression/expression.hpp> +#include <mbgl/style/conversion.hpp> +#include <memory> + +namespace mbgl { +namespace style { +namespace expression { + +class At : public Expression { +public: + At(std::unique_ptr<Expression> index_, std::unique_ptr<Expression> input_) : + Expression(input_->getType().get<type::Array>().itemType), + index(std::move(index_)), + input(std::move(input_)) + {} + + static ParseResult parse(const mbgl::style::conversion::Convertible& value, ParsingContext& ctx); + + EvaluationResult evaluate(const EvaluationContext& params) const override; + void eachChild(const std::function<void(const Expression&)>&) const override; + + bool operator==(const Expression& e) const override { + if (auto rhs = dynamic_cast<const At*>(&e)) { + return *index == *(rhs->index) && *input == *(rhs->input); + } + return false; + } + +private: + std::unique_ptr<Expression> index; + std::unique_ptr<Expression> input; +}; + +} // namespace expression +} // namespace style +} // namespace mbgl |