75 lines
1.8 KiB
C++
75 lines
1.8 KiB
C++
#pragma once
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/**
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* @file
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*
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* @brief Pos and AbstractPos
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*/
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#include <cstdint>
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#include <string>
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#include "source-path.hh"
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namespace nix {
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/**
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* A position and an origin for that position (like a source file).
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*/
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struct Pos
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{
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uint32_t line = 0;
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uint32_t column = 0;
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struct Stdin {
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ref<std::string> source;
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bool operator==(const Stdin & rhs) const
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{ return *source == *rhs.source; }
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bool operator!=(const Stdin & rhs) const
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{ return *source != *rhs.source; }
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bool operator<(const Stdin & rhs) const
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{ return *source < *rhs.source; }
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};
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struct String {
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ref<std::string> source;
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bool operator==(const String & rhs) const
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{ return *source == *rhs.source; }
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bool operator!=(const String & rhs) const
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{ return *source != *rhs.source; }
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bool operator<(const String & rhs) const
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{ return *source < *rhs.source; }
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};
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typedef std::variant<std::monostate, Stdin, String, SourcePath> Origin;
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Origin origin = std::monostate();
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Pos() { }
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Pos(uint32_t line, uint32_t column, Origin origin)
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: line(line), column(column), origin(origin) { }
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Pos(Pos & other) = default;
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Pos(const Pos & other) = default;
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Pos(Pos && other) = default;
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Pos(const Pos * other);
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explicit operator bool() const { return line > 0; }
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operator std::shared_ptr<Pos>() const;
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/**
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* Return the contents of the source file.
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*/
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std::optional<std::string> getSource() const;
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void print(std::ostream & out, bool showOrigin) const;
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std::optional<LinesOfCode> getCodeLines() const;
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bool operator==(const Pos & rhs) const = default;
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bool operator!=(const Pos & rhs) const = default;
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bool operator<(const Pos & rhs) const;
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};
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std::ostream & operator<<(std::ostream & str, const Pos & pos);
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}
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