|  | // 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/tint/ast/builtin.h" | 
|  |  | 
|  | namespace tint::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::kVertexIndex: { | 
|  | out << "vertex_index"; | 
|  | break; | 
|  | } | 
|  | case Builtin::kInstanceIndex: { | 
|  | out << "instance_index"; | 
|  | break; | 
|  | } | 
|  | case Builtin::kFrontFacing: { | 
|  | out << "front_facing"; | 
|  | break; | 
|  | } | 
|  | case Builtin::kFragDepth: { | 
|  | out << "frag_depth"; | 
|  | break; | 
|  | } | 
|  | case Builtin::kLocalInvocationId: { | 
|  | out << "local_invocation_id"; | 
|  | break; | 
|  | } | 
|  | case Builtin::kLocalInvocationIndex: { | 
|  | out << "local_invocation_index"; | 
|  | break; | 
|  | } | 
|  | case Builtin::kGlobalInvocationId: { | 
|  | out << "global_invocation_id"; | 
|  | break; | 
|  | } | 
|  | case Builtin::kWorkgroupId: { | 
|  | out << "workgroup_id"; | 
|  | break; | 
|  | } | 
|  | case Builtin::kNumWorkgroups: { | 
|  | out << "num_workgroups"; | 
|  | break; | 
|  | } | 
|  | case Builtin::kSampleIndex: { | 
|  | out << "sample_index"; | 
|  | break; | 
|  | } | 
|  | case Builtin::kSampleMask: { | 
|  | out << "sample_mask"; | 
|  | break; | 
|  | } | 
|  | case Builtin::kPointSize: { | 
|  | out << "pointsize"; | 
|  | } | 
|  | } | 
|  | return out; | 
|  | } | 
|  |  | 
|  | }  // namespace tint::ast |