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Document __demangle() and fix a const func ptr bug

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Justine Tunney 2024-06-02 04:15:48 -07:00
parent c67faf61df
commit 9aa353d88b
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7 changed files with 618 additions and 670 deletions
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test/libc/intrin/demangle_test.c Normal file
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/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2024 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "demangle_cases.inc"
#include "libc/cosmo.h"
#include "libc/macros.internal.h"
#include "libc/stdio/internal.h"
#include "libc/str/str.h"
char got[19500];
static void regenerate_cases(void) {
FILE *f = fopen("demangle_cases.inc", "w");
fprintf(f, "const char* demangle_cases[][2] = {\n");
for (int i = 0; i < ARRAYLEN(demangle_cases); ++i) {
const char *input = demangle_cases[i][0];
const char *want = demangle_cases[i][1];
if (__demangle(got, input, sizeof(got)) == -1) {
fprintf(f, "\n // {%`'s,\n // %`'s},\n // got error\n\n", input,
want);
} else if (!strcmp(want, got)) {
fprintf(f, " {%`'s, %`'s},\n", input, got);
} else {
fprintf(f,
"\n // {%`'s,\n // %`'s},\n // %`'s was returned\n\n",
input, want, got);
}
fflush(f);
}
fprintf(f, "};\n");
fclose(f);
}
int main() {
for (int i = 0; i < ARRAYLEN(demangle_cases); ++i) {
const char *input = demangle_cases[i][0];
const char *want = demangle_cases[i][1];
if (__demangle(got, input, sizeof(got)) == -1) {
fprintf(stderr, "%s:%d: error: demangle failed\n", __FILE__, __LINE__);
fprintf(stderr, "\tinput %`'s\n", input);
fprintf(stderr, "\t want %`'s\n", want);
return 1;
}
if (strcmp(want, got)) {
fprintf(stderr, "%s:%d: error: demangle incorrect\n", __FILE__, __LINE__);
fprintf(stderr, "\tinput %`'s\n", input);
fprintf(stderr, "\t want %`'s\n", want);
fprintf(stderr, "\t got %`'s\n", got);
return 2;
}
}
}