1 files changed, 55 insertions, 0 deletions
diff --git a/gfx/skia/skia/src/sksl/ir/SkSLFunctionReference.h b/gfx/skia/skia/src/sksl/ir/SkSLFunctionReference.h
new file mode 100644
index 0000000000..4788dbb418
--- /dev/null
+++ b/gfx/skia/skia/src/sksl/ir/SkSLFunctionReference.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SKSL_FUNCTIONREFERENCE
+#define SKSL_FUNCTIONREFERENCE
+
+#include "src/sksl/SkSLContext.h"
+#include "src/sksl/ir/SkSLExpression.h"
+#include "src/sksl/ir/SkSLFunctionDeclaration.h"
+
+namespace SkSL {
+
+/**
+ * An identifier referring to a function name. This is an intermediate value: FunctionReferences are
+ * always eventually replaced by FunctionCalls in valid programs.
+ */
+class FunctionReference final : public Expression {
+public:
+    inline static constexpr Kind kIRNodeKind = Kind::kFunctionReference;
+
+    FunctionReference(const Context& context, Position pos,
+                      const FunctionDeclaration* overloadChain)
+        : INHERITED(pos, kIRNodeKind, context.fTypes.fInvalid.get())
+        , fOverloadChain(overloadChain) {}
+
+    const FunctionDeclaration* overloadChain() const {
+        return fOverloadChain;
+    }
+
+    std::unique_ptr<Expression> clone(Position pos) const override {
+        return std::unique_ptr<Expression>(new FunctionReference(pos, this->overloadChain(),
+                                                                 &this->type()));
+    }
+
+    std::string description(OperatorPrecedence) const override {
+        return "<function>";
+    }
+
+private:
+    FunctionReference(Position pos, const FunctionDeclaration* overloadChain, const Type* type)
+            : INHERITED(pos, kIRNodeKind, type)
+            , fOverloadChain(overloadChain) {}
+
+    const FunctionDeclaration* fOverloadChain;
+
+    using INHERITED = Expression;
+};
+
+}  // namespace SkSL
+
+#endif