1 files changed, 68 insertions, 0 deletions
diff --git a/src/deps/skia/include/sksl/DSLCase.h b/src/deps/skia/include/sksl/DSLCase.h
new file mode 100644
index 000000000..5b006e7e2
--- /dev/null
+++ b/src/deps/skia/include/sksl/DSLCase.h
@@ -0,0 +1,68 @@
+/*
+ * Copyright 2021 Google LLC.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SKSL_DSL_CASE
+#define SKSL_DSL_CASE
+
+#include "include/private/SkSLDefines.h"
+#include "include/sksl/DSLExpression.h"
+#include "include/sksl/DSLStatement.h"
+
+#include <memory>
+
+namespace SkSL {
+
+class Statement;
+
+namespace dsl {
+
+class DSLCase {
+public:
+    // An empty expression means 'default:'.
+    template<class... Statements>
+    DSLCase(DSLExpression value, Statements... statements)
+        : fValue(std::move(value)) {
+        fStatements.reserve_back(sizeof...(statements));
+        // in C++17, we could just do:
+        // (fStatements.push_back(DSLStatement(std::move(statements)).release()), ...);
+        int unused[] =
+          {0,
+           (static_cast<void>(fStatements.push_back(DSLStatement(std::move(statements)).release())),
+            0)...};
+        static_cast<void>(unused);
+    }
+
+    DSLCase(DSLExpression value, SkTArray<DSLStatement> statements,
+            PositionInfo info = PositionInfo::Capture());
+
+    DSLCase(DSLExpression value, SkSL::StatementArray statements,
+            PositionInfo info = PositionInfo::Capture());
+
+    DSLCase(DSLCase&&);
+
+    ~DSLCase();
+
+    DSLCase& operator=(DSLCase&&);
+
+    void append(DSLStatement stmt);
+
+private:
+    DSLExpression fValue;
+    SkSL::StatementArray fStatements;
+    PositionInfo fPosition;
+
+    friend class DSLCore;
+
+    template<class... Cases>
+    friend DSLPossibleStatement Switch(DSLExpression value, Cases... cases);
+};
+
+} // namespace dsl
+
+} // namespace SkSL
+
+#endif