diff options
Diffstat (limited to 'src/mbgl/style/expression/dsl.cpp')
-rw-r--r-- | src/mbgl/style/expression/dsl.cpp | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/src/mbgl/style/expression/dsl.cpp b/src/mbgl/style/expression/dsl.cpp index 70442de968..fac7dfbbd9 100644 --- a/src/mbgl/style/expression/dsl.cpp +++ b/src/mbgl/style/expression/dsl.cpp @@ -10,6 +10,10 @@ #include <mbgl/style/expression/compound_expression.hpp> #include <mbgl/style/expression/format_expression.hpp> +#include <mapbox/geojsonvt.hpp> +#include <mbgl/style/conversion/json.hpp> +#include <rapidjson/document.h> + namespace mbgl { namespace style { namespace expression { @@ -21,6 +25,25 @@ std::unique_ptr<Expression> compound(const char* op, std::vector<std::unique_ptr assert(result); return std::move(*result); } + +std::unique_ptr<Expression> createExpression(const char* expr) { + using JSValue = rapidjson::GenericValue<rapidjson::UTF8<>, rapidjson::CrtAllocator>; + rapidjson::GenericDocument<rapidjson::UTF8<>, rapidjson::CrtAllocator> document; + document.Parse<0>(expr); + if (document.HasParseError()) return nullptr; + + const JSValue* expression = &document; + expression::ParsingContext ctx; + expression::ParseResult parsed = + ctx.parseExpression(mbgl::style::conversion::Convertible(expression)); + return parsed ? std::move(*parsed) : nullptr; +} + +std::unique_ptr<Expression> createExpression(const mbgl::style::conversion::Convertible& expr) { + expression::ParsingContext ctx; + expression::ParseResult parsed = ctx.parseExpression(expr); + return parsed ? std::move(*parsed) : nullptr; +} std::unique_ptr<Expression> error(std::string message) { return std::make_unique<Error>(std::move(message)); |