skia WIPjarred/canvas

1 files changed, 67 insertions, 0 deletions

diff --git a/src/deps/skia/include/sksl/DSLBlock.h b/src/deps/skia/include/sksl/DSLBlock.h
new file mode 100644
index 000000000..3fcbb34c8
--- /dev/null
+++ b/src/deps/skia/include/sksl/DSLBlock.h
@@ -0,0 +1,67 @@
+/*
+ * 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_BLOCK
+#define SKSL_DSL_BLOCK
+
+#include "include/private/SkSLDefines.h"
+#include "include/sksl/DSLExpression.h"
+#include "include/sksl/DSLStatement.h"
+
+#include <memory>
+
+namespace SkSL {
+
+class Block;
+class SymbolTable;
+
+namespace dsl {
+
+class DSLBlock {
+public:
+    template<class... Statements>
+    DSLBlock(Statements... statements) {
+        fStatements.reserve_back(sizeof...(statements));
+        // in C++17, we could just do:
+        // (fStatements.push_back(DSLStatement(statements.release()).release()), ...);
+        int unused[] =
+            {0,
+            (static_cast<void>(fStatements.push_back(DSLStatement(statements.release()).release())),
+             0)...};
+        static_cast<void>(unused);
+    }
+
+    DSLBlock(DSLBlock&& other) = default;
+
+    DSLBlock(SkSL::StatementArray statements, std::shared_ptr<SymbolTable> symbols = nullptr);
+
+    DSLBlock(SkTArray<DSLStatement> statements, std::shared_ptr<SymbolTable> symbols = nullptr);
+
+    ~DSLBlock();
+
+    DSLBlock& operator=(DSLBlock&& other) {
+        fStatements = std::move(other.fStatements);
+        return *this;
+    }
+
+    void append(DSLStatement stmt);
+
+    std::unique_ptr<SkSL::Block> release();
+
+private:
+    SkSL::StatementArray fStatements;
+    std::shared_ptr<SkSL::SymbolTable> fSymbols;
+
+    friend class DSLStatement;
+    friend class DSLFunction;
+};
+
+} // namespace dsl
+
+} // namespace SkSL
+
+#endif