[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

scripts/generate-style-code.js

@@ -35,8 +35,9 @@ global.expressionType = function (property) {
         case 'number':
         case 'enum':
             return 'NumberType';
+        case 'image':
+            return 'ImageType';
         case 'string':
-        case 'image': // TODO: replace once we implement image expressions
             return 'StringType';
         case 'color':
             return `ColorType`;
@@ -66,10 +67,11 @@ global.evaluatedType = function (property) {
     return 'bool';
   case 'number':
     return 'float';
+  case 'resolvedImage':
+      return 'expression::Image';
   case 'formatted':
     return 'expression::Formatted';
   case 'string':
-  case 'image': // TODO: replace once we implement image expressions
     return 'std::string';
   case 'enum':
     return (isLightProperty(property) ? 'Light' : '') + `${camelize(property.name)}Type`;
@@ -168,8 +170,8 @@ global.defaultValue = function (property) {
   }
   case 'formatted':
   case 'string':
-  case 'image': // TODO: replace once we implement image expressions
-    return JSON.stringify(property.default || "");
+  case 'resolvedImage':
+    return property.default ? `{${JSON.stringify(property.default)}}` : '{}';
   case 'enum':
     if (property.default === undefined) {
       return `${evaluatedType(property)}::Undefined`;
@@ -191,9 +193,9 @@ global.defaultValue = function (property) {
   case 'array':
     const defaults = (property.default || []).map((e) => defaultValue({ type: property.value, default: e }));
     if (property.length) {
-      return `{{ ${defaults.join(', ')} }}`;
+      return `{{${defaults.join(', ')}}}`;
     } else {
-      return `{ ${defaults.join(', ')} }`;
+      return `{${defaults.join(', ')}}`;
     }
   default:
     return property.default;