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/*
* Copyright 2017 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.
*/
#include "binary-error-handler.h"
#include "common.h"
namespace wabt {
std::string BinaryErrorHandler::DefaultErrorMessage(Offset offset,
const std::string& error) {
if (offset == kInvalidOffset)
return string_printf("error: %s\n", error.c_str());
else
return string_printf("error: @0x%08" PRIzx ": %s\n", offset, error.c_str());
}
BinaryErrorHandlerFile::BinaryErrorHandlerFile(FILE* file,
const std::string& header,
PrintHeader print_header)
: file_(file), header_(header), print_header_(print_header) {}
bool BinaryErrorHandlerFile::OnError(Offset offset, const std::string& error) {
PrintErrorHeader();
std::string message = DefaultErrorMessage(offset, error);
fwrite(message.data(), 1, message.size(), file_);
fflush(file_);
return true;
}
void BinaryErrorHandlerFile::PrintErrorHeader() {
if (header_.empty())
return;
switch (print_header_) {
case PrintHeader::Never:
break;
case PrintHeader::Once:
print_header_ = PrintHeader::Never;
// Fallthrough.
case PrintHeader::Always:
fprintf(file_, "%s:\n", header_.c_str());
break;
}
// If there's a header, indent the following message.
fprintf(file_, " ");
}
bool BinaryErrorHandlerBuffer::OnError(Offset offset,
const std::string& error) {
buffer_ += DefaultErrorMessage(offset, error);
return true;
}
} // namespace wabt
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