// Copyright 2020 The Tint Authors.
//
// 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 "src/ast/builtin.h"

namespace tint {
namespace ast {

std::ostream& operator<<(std::ostream& out, Builtin builtin) {
  switch (builtin) {
    case Builtin::kNone: {
      out << "none";
      break;
    }
    case Builtin::kPosition: {
      out << "position";
      break;
    }
    case Builtin::kVertexIdx: {
      out << "vertex_idx";
      break;
    }
    case Builtin::kInstanceIdx: {
      out << "instance_idx";
      break;
    }
    case Builtin::kFrontFacing: {
      out << "front_facing";
      break;
    }
    case Builtin::kFragCoord: {
      out << "frag_coord";
      break;
    }
    case Builtin::kFragDepth: {
      out << "frag_depth";
      break;
    }
    case Builtin::kNumWorkgroups: {
      out << "num_workgroups";
      break;
    }
    case Builtin::kWorkgroupSize: {
      out << "workgroup_size";
      break;
    }
    case Builtin::kLocalInvocationId: {
      out << "local_invocation_id";
      break;
    }
    case Builtin::kLocalInvocationIdx: {
      out << "local_invocation_idx";
      break;
    }
    case Builtin::kGlobalInvocationId: {
      out << "global_invocation_id";
      break;
    }
  }
  return out;
}

}  // namespace ast
}  // namespace tint