[core] Implement array assertion fallback behavior

This was added in gl-js in #7095.

3 files changed, 1 insertions, 48 deletions

diff --git a/include/mbgl/style/expression/array_assertion.hpp b/include/mbgl/style/expression/array_assertion.hpp
deleted file mode 100644
index 0c0912b73e..0000000000
--- a/include/mbgl/style/expression/array_assertion.hpp
+++ /dev/null
@@ -1,47 +0,0 @@
-#pragma once
-
-#include <mbgl/style/expression/expression.hpp>
-#include <mbgl/style/expression/type.hpp>
-#include <mbgl/style/expression/parsing_context.hpp>
-#include <mbgl/style/conversion.hpp>
-
-#include <memory>
-
-namespace mbgl {
-namespace style {
-namespace expression {
-
-class ArrayAssertion : public Expression  {
-public:
-    ArrayAssertion(type::Array type_, std::unique_ptr<Expression> input_) :
-        Expression(Kind::ArrayAssertion, type_),
-        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&)>& visit) const override;
-
-    bool operator==(const Expression& e) const override {
-        if (e.getKind() == Kind::ArrayAssertion) {
-            auto rhs = static_cast<const ArrayAssertion*>(&e);
-            return getType() == rhs->getType() && *input == *(rhs->input);
-        }
-        return false;
-    }
-
-    std::vector<optional<Value>> possibleOutputs() const override {
-        return input->possibleOutputs();
-    }
-    
-    mbgl::Value serialize() const override;
-    std::string getOperator() const override { return "array"; }
-
-private:
-    std::unique_ptr<Expression> input;
-};
-
-} // namespace expression
-} // namespace style
-} // namespace mbgl
diff --git a/include/mbgl/style/expression/assertion.hpp b/include/mbgl/style/expression/assertion.hpp
index 239cdf2ea6..0dec89dac9 100644
--- a/include/mbgl/style/expression/assertion.hpp
+++ b/include/mbgl/style/expression/assertion.hpp
@@ -24,6 +24,7 @@ public:
 
     std::vector<optional<Value>> possibleOutputs() const override;
     
+    mbgl::Value serialize() const override;
     std::string getOperator() const override;
 
 private:
diff --git a/include/mbgl/style/expression/expression.hpp b/include/mbgl/style/expression/expression.hpp
index bfd1e08ee7..ce02c4114b 100644
--- a/include/mbgl/style/expression/expression.hpp
+++ b/include/mbgl/style/expression/expression.hpp
@@ -118,7 +118,6 @@ enum class Kind : int32_t {
     Coalesce,
     CompoundExpression,
     Literal,
-    ArrayAssertion,
     At,
     Interpolate,
     Assertion,