// 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/writer/hlsl/generator.h"

#include <utility>

namespace tint {
namespace writer {
namespace hlsl {

Generator::Generator(ast::Module module)
    : Text(std::move(module)),
      namer_(std::make_unique<UnsafeNamer>(&module)),
      impl_(std::make_unique<GeneratorImpl>(&module_, namer_.get())) {}

Generator::~Generator() = default;

void Generator::Reset() {
  set_error("");
  out_ = std::ostringstream();
  namer_->Reset();
  impl_ = std::make_unique<GeneratorImpl>(&module_, namer_.get());
}

bool Generator::Generate() {
  auto ret = impl_->Generate(out_);
  if (!ret) {
    error_ = impl_->error();
  }
  return ret;
}

bool Generator::GenerateEntryPoint(ast::PipelineStage, const std::string&) {
  return false;
}

std::string Generator::result() const {
  return out_.str();
}

std::string Generator::error() const {
  return impl_->error();
}

}  // namespace hlsl
}  // namespace writer
}  // namespace tint