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#pragma once
#include <yql/essentials/parser/lexer_common/lexer.h>
#include <google/protobuf/message.h>
#include <util/generic/ptr.h>
#include <util/generic/vector.h>
#include <util/charset/utf8.h>
namespace NProtoAST {
static const char* INVALID_TOKEN_NAME = "nothing";
static const char* ABSENCE = " absence";
template <typename InputType>
void InvalidCharacter(IOutputStream& err, const InputType* input) {
wchar32 rune = 0;
size_t runeLen = 0;
auto begin = input->get_nextChar();
auto end = begin + input->get_sizeBuf();
if (begin != end && SafeReadUTF8Char(rune, runeLen, begin, end) == RECODE_OK) {
err << " '" << TStringBuf((const char*)begin, runeLen) << "' (Unicode character <" << ui32(rune) << ">)";
}
}
template <typename TokenType>
inline void InvalidToken(IOutputStream& err, const TokenType* token) {
if (token) {
if (token->get_input()) {
err << " '" << token->getText() << "'";
} else {
err << ABSENCE;
}
}
}
class TTooManyErrors : public yexception {
};
class IErrorCollector {
public:
explicit IErrorCollector(size_t maxErrors);
virtual ~IErrorCollector();
// throws TTooManyErrors
void Error(ui32 line, ui32 col, const TString& message);
private:
virtual void AddError(ui32 line, ui32 col, const TString& message) = 0;
protected:
const size_t MaxErrors;
size_t NumErrors;
};
class TErrorOutput: public IErrorCollector {
public:
TErrorOutput(IOutputStream& err, const TString& name, size_t maxErrors);
virtual ~TErrorOutput();
private:
void AddError(ui32 line, ui32 col, const TString& message) override;
public:
IOutputStream& Err;
TString Name;
};
} // namespace NProtoAST
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