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// Copyright 2019 The Amber 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/descriptor_set_and_binding_parser.h"
#include <iostream>
#include "src/tokenizer.h"
namespace amber {
DescriptorSetAndBindingParser::DescriptorSetAndBindingParser() = default;
DescriptorSetAndBindingParser::~DescriptorSetAndBindingParser() = default;
Result DescriptorSetAndBindingParser::Parse(const std::string& buffer_id) {
Tokenizer t(buffer_id);
auto token = t.NextToken();
if (token->IsInteger()) {
if (token->AsInt32() < 0) {
return Result(
"Descriptor set and binding for a buffer must be non-negative "
"integer, but you gave: " +
token->ToOriginalString());
}
uint32_t val = token->AsUint32();
token = t.NextToken();
if (token->IsEOS() || token->IsEOL()) {
descriptor_set_ = 0;
binding_ = val;
return {};
}
descriptor_set_ = val;
} else {
descriptor_set_ = 0;
}
std::cout << token->AsString() << std::endl;
if (!token->IsString() || token->AsString() != ",") {
return Result("Invalid buffer id: " + buffer_id);
}
token = t.NextToken();
if (!token->IsInteger() || token->AsInt32() < 0) {
return Result(
"Binding for a buffer must be non-negative integer, but you gave: " +
token->ToOriginalString());
}
binding_ = token->AsUint32();
return {};
}
} // namespace amber
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