/*
 * Copyright 2018 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.
 */

#ifndef wasm_ir_function_h
#define wasm_ir_function_h

#include "ir/utils.h"
#include "wasm.h"

namespace wasm {

namespace FunctionUtils {

// Checks if two functions are equal in all functional aspects,
// everything but their name (which can't be the same, in the same
// module!) - same params, vars, body, result, etc.
inline bool equal(Function* left, Function* right) {
  if (left->getNumParams() != right->getNumParams()) {
    return false;
  }
  if (left->getNumVars() != right->getNumVars()) {
    return false;
  }
  for (Index i = 0; i < left->getNumLocals(); i++) {
    if (left->getLocalType(i) != right->getLocalType(i)) {
      return false;
    }
  }
  if (left->result != right->result) {
    return false;
  }
  if (left->type != right->type) {
    return false;
  }
  if (!left->imported() && !right->imported()) {
    return ExpressionAnalyzer::equal(left->body, right->body);
  }
  return left->imported() && right->imported();
}

} // namespace FunctionUtils

} // namespace wasm

#endif // wasm_ir_function_h