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Use RAII to unmap or close the lexer states' files automatically

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This commit is contained in:
Rangi42
2024-03-22 14:03:04 -04:00
committed by Sylvie
parent 507439bc25
commit 6a5518e0c5
3 changed files with 15 additions and 6 deletions
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12
include/asm/lexer.hpp
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@@ -83,6 +83,17 @@ struct LexerState {
std::deque<Expansion> expansions; // Front is the innermost current expansion
std::variant<std::monostate, MmappedLexerState, ViewedLexerState, BufferedLexerState> content;
LexerState() = default;
LexerState(LexerState &&) = default;
LexerState(LexerState const &) = delete;
// This destructor unmaps or closes the content file if applicable.
// As such, lexer states should not be copyable.
~LexerState();
LexerState &operator=(LexerState &&) = default;
LexerState &operator=(LexerState const &) = delete;
};
extern LexerState *lexerState;
@@ -117,7 +128,6 @@ void lexer_OpenFileView(
LexerState &state, char const *path, char const *buf, size_t size, uint32_t lineNo
);
void lexer_RestartRept(uint32_t lineNo);
void lexer_CleanupState(LexerState &state);
void lexer_Init();
void lexer_SetMode(LexerMode mode);
void lexer_ToggleStringExpansion(bool enable);