1 files changed, 128 insertions, 0 deletions
diff --git a/src/asmjs/asm_v_wasm.cpp b/src/asmjs/asm_v_wasm.cpp
new file mode 100644
index 000000000..317a8b625
--- /dev/null
+++ b/src/asmjs/asm_v_wasm.cpp
@@ -0,0 +1,128 @@
+/*
+ * Copyright 2015 WebAssembly Community Group participants
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "asm_v_wasm.h"
+#include "wasm.h"
+
+
+namespace wasm {
+
+WasmType asmToWasmType(AsmType asmType) {
+  switch (asmType) {
+    case ASM_INT: return WasmType::i32;
+    case ASM_DOUBLE: return WasmType::f64;
+    case ASM_FLOAT: return WasmType::f32;
+    case ASM_NONE: return WasmType::none;
+    default: {}
+  }
+  abort();
+}
+
+AsmType wasmToAsmType(WasmType type) {
+  switch (type) {
+    case WasmType::i32: return ASM_INT;
+    case WasmType::f32: return ASM_FLOAT;
+    case WasmType::f64: return ASM_DOUBLE;
+    case WasmType::none: return ASM_NONE;
+    default: {}
+  }
+  abort();
+}
+
+char getSig(WasmType type) {
+  switch (type) {
+    case i32:  return 'i';
+    case i64:  return 'j';
+    case f32:  return 'f';
+    case f64:  return 'd';
+    case none: return 'v';
+    default: abort();
+  }
+}
+
+std::string getSig(FunctionType *type) {
+  std::string ret;
+  ret += getSig(type->result);
+  for (auto param : type->params) {
+    ret += getSig(param);
+  }
+  return ret;
+}
+
+std::string getSig(Function *func) {
+  std::string ret;
+  ret += getSig(func->result);
+  for (auto type : func->params) {
+    ret += getSig(type);
+  }
+  return ret;
+}
+
+std::string getSig(CallBase *call) {
+  std::string ret;
+  ret += getSig(call->type);
+  for (auto operand : call->operands) {
+    ret += getSig(operand->type);
+  }
+  return ret;
+}
+
+std::string getSig(WasmType result, const ExpressionList& operands) {
+  std::string ret;
+  ret += getSig(result);
+  for (auto operand : operands) {
+    ret += getSig(operand->type);
+  }
+  return ret;
+}
+
+WasmType sigToWasmType(char sig) {
+  switch (sig) {
+    case 'i': return i32;
+    case 'j': return i64;
+    case 'f': return f32;
+    case 'd': return f64;
+    case 'v': return none;
+    default: abort();
+  }
+}
+
+FunctionType sigToFunctionType(std::string sig) {
+  FunctionType ret;
+  ret.result = sigToWasmType(sig[0]);
+  for (size_t i = 1; i < sig.size(); i++) {
+    ret.params.push_back(sigToWasmType(sig[i]));
+  }
+  return ret;
+}
+
+FunctionType* ensureFunctionType(std::string sig, Module* wasm, MixedArena& allocator) {
+  cashew::IString name(("FUNCSIG$" + sig).c_str(), false);
+  if (wasm->checkFunctionType(name)) {
+    return wasm->getFunctionType(name);
+  }
+  // add new type
+  auto type = allocator.alloc<FunctionType>();
+  type->name = name;
+  type->result = sigToWasmType(sig[0]);
+  for (size_t i = 1; i < sig.size(); i++) {
+    type->params.push_back(sigToWasmType(sig[i]));
+  }
+  wasm->addFunctionType(type);
+  return type;
+}
+
+} // namespace wasm