1 files changed, 57 insertions, 0 deletions
diff --git a/deps/v8/src/wasm/wasm-init-expr.cc b/deps/v8/src/wasm/wasm-init-expr.cc
new file mode 100644
index 0000000000..6348c58193
--- /dev/null
+++ b/deps/v8/src/wasm/wasm-init-expr.cc
@@ -0,0 +1,57 @@
+// Copyright 2021 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "src/wasm/wasm-init-expr.h"
+
+namespace v8 {
+namespace internal {
+namespace wasm {
+
+std::ostream& operator<<(std::ostream& os, const WasmInitExpr& expr) {
+  os << "(";
+  switch (expr.kind()) {
+    case WasmInitExpr::kNone:
+      UNREACHABLE();
+    case WasmInitExpr::kGlobalGet:
+      os << "global.get " << expr.immediate().index;
+      break;
+    case WasmInitExpr::kI32Const:
+      os << "i32.const " << expr.immediate().i32_const;
+      break;
+    case WasmInitExpr::kI64Const:
+      os << "i64.const " << expr.immediate().i64_const;
+      break;
+    case WasmInitExpr::kF32Const:
+      os << "f32.const " << expr.immediate().f32_const;
+      break;
+    case WasmInitExpr::kF64Const:
+      os << "f64.const " << expr.immediate().f64_const;
+      break;
+    case WasmInitExpr::kS128Const:
+      os << "s128.const 0x" << std::hex;
+      for (uint8_t b : expr.immediate().s128_const) {
+        os << b;
+      }
+      os << std::dec;
+      break;
+    case WasmInitExpr::kRefNullConst:
+      os << "ref.null " << expr.immediate().heap_type;
+      break;
+    case WasmInitExpr::kRefFuncConst:
+      os << "ref.func " << expr.immediate().index;
+      break;
+    case WasmInitExpr::kRttCanon:
+      os << "rtt.canon " << expr.immediate().heap_type;
+      break;
+    case WasmInitExpr::kRttSub:
+      os << "rtt.sub " << *expr.operand();
+      break;
+  }
+  os << ")";
+  return os;
+}
+
+}  // namespace wasm
+}  // namespace internal
+}  // namespace v8