[core] Implement image expression (#15877)

* [core] Bump gl-js version
* [core] Implement image expression
* [core] Use new image expression
* [core] Coerce image expression to / from string
* [core] Serialize evaluated image
* [core] Pass available images to layout
* [core] Pass images to evaluation context
* [core] Set available flag value based on image availability
* [core] Allow image coercion to boolean to indicate image availability
* [core] Coalesce image expression
* [core] Add image expression to next build system
* [core] Align serialization format and evaluated type with gl-js
* [core] Add images to expression evaluation method
* [core] Add support for Image expression to expression test runner
* [core] Unskip image expression tests
* [core] Update unit tests
* [core] Use image expression in annotation manager
* [core] Add string to ImageExpression conversion
* [core] Add image expression to expression dsl
* [core] Convert tokens for implicitly created Image literal
* [core] Fix clang format
* [core] Split generated style code lines that are over 120 characters
* [core] Add unit test for image expression equality
* [core] Add image property expression evaluation unit test
* [core] Unskip image expression render test
* [core] Skip 'in' expression tests
* [core] Ignore fill-pattern/update-feature-state render test
* [core] Rename Image::serialize to Image::toValue

1 files changed, 6 insertions, 0 deletions

diff --git a/include/mbgl/style/conversion/property_value.hpp b/include/mbgl/style/conversion/property_value.hpp
index 9d619f7a02..61360b7440 100644
--- a/include/mbgl/style/conversion/property_value.hpp
+++ b/include/mbgl/style/conversion/property_value.hpp
@@ -39,6 +39,12 @@ struct Converter<PropertyValue<T>> {
             ? PropertyValue<T>(PropertyExpression<T>(convertTokenStringToFormatExpression(firstUnformattedSection)))
             : PropertyValue<T>(t);
     }
+
+    PropertyValue<T> maybeConvertTokens(const expression::Image& image) const {
+        return hasTokens(image.id())
+                   ? PropertyValue<T>(PropertyExpression<T>(convertTokenStringToImageExpression(image.id())))
+                   : PropertyValue<T>(image);
+    }
 };
 
 } // namespace conversion