61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
#pragma once
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#include <Token.h>
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namespace LXC::Lexer
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{
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struct LexerContext final
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{
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// Constructor to set the information of the context //
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LexerContext(const std::string& _source);
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// Trackers for the Lexer itself //
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const std::string& source;
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__int32 index;
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LexerOutput out;
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const __int32 len;
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// Trackers for where the Lexer is within the user version of source //
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unsigned short column;
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unsigned short line;
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};
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struct LexerError final
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{
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// Different reasons why the Lexer can fail //
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enum Reason
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{
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InvalidCharacter,
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UnterminatedStringLiteral,
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UnknownSymbolOrOperand
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};
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// Constructor to pass arguments through to the struct //
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LexerError(Reason _reason, __int32 errorIndex, std::string _info = "")
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: reason(_reason), index(errorIndex), info(_info)
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{}
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// Turns the error into a c-string //
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inline static const char* const ReasonStr(Reason reason)
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{
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static const char* reasons[] =
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{
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"Invalid character found in source",
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"Unterminated string literal in source",
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"Unknown symbol or operand in source"
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};
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return reasons[reason];
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}
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// Error information //
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const Reason reason;
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const __int32 index;
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const std::string info;
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};
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// Turns a file into a vector of tokens //
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Util::ReturnVal<LexerOutput, LexerError> TokenizeFile(const std::string& fileContents);
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}
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