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Separate union members for EQUS and MACROs

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This commit is contained in:
Rangi42
2024-02-19 08:39:57 -05:00
parent 9cdd0b8a02
commit bc8fd8a6dc
2 changed files with 12 additions and 8 deletions
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8
include/asm/symbol.hpp
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@@ -37,12 +37,16 @@ struct Symbol {
// If sym_IsNumeric
int32_t value;
int32_t (*numCallback)(void);
// For SYM_MACRO and SYM_EQUS; TODO: have separate fields
// For SYM_MACRO
struct {
size_t size;
char *value;
} macro;
// For SYM_EQUS
struct {
size_t size;
char *value;
} equs;
char const *(*strCallback)(void);
};
@@ -97,7 +101,7 @@ static inline char const *sym_GetStringValue(struct Symbol const *sym)
{
if (sym->hasCallback)
return sym->strCallback();
return sym->macro.value;
return sym->equs.value;
}
void sym_ForEach(void (*func)(struct Symbol *, void *), void *arg);

12
src/asm/symbol.cpp
View File

@@ -164,8 +164,8 @@ static void assignStringSymbol(struct Symbol *sym, char const *value)
fatalerror("No memory for string equate: %s\n", strerror(errno));
sym->type = SYM_EQUS;
sym->macro.value = string;
sym->macro.size = strlen(string);
sym->equs.value = string;
sym->equs.size = strlen(string);
}
struct Symbol *sym_FindExactSymbol(char const *symName)
@@ -233,8 +233,8 @@ void sym_Purge(char const *symName)
if (sym->name == labelScope)
sym_SetCurrentSymbolScope(NULL);
// FIXME: this leaks sym->macro.value for SYM_EQUS and SYM_MACRO, but this can't
// free(sym->macro.value) because the expansion may be purging itself.
// FIXME: this leaks sym->equs.value for SYM_EQUS and sym->macro.value for SYM_MACRO,
// but this can't free either of them because the expansion may be purging itself.
hash_RemoveElement(symbols, sym->name);
// TODO: ideally, also unref the file stack nodes
free(sym);
@@ -401,8 +401,8 @@ struct Symbol *sym_RedefString(char const *symName, char const *value)
}
updateSymbolFilename(sym);
// FIXME: this leaks the previous sym->macro.value value, but this can't
// free(sym->macro.value) because the expansion may be redefining itself.
// FIXME: this leaks the previous sym->equs.value, but this can't free(sym->equs.value)
// because the expansion may be redefining itself.
assignStringSymbol(sym, value);
return sym;