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#include <stdlib.h>
#include <string.h>
#include "compiler.h"
#include "command/serialize.h"
#include "error.h"
#include "regexp.h"
#include "util/array.h"
#include "util/debug.h"
#include "util/intern.h"
#include "util/str-util.h"
#include "util/xmalloc.h"
static const char capture_names[][8] = {
[ERRFMT_FILE] = "file",
[ERRFMT_LINE] = "line",
[ERRFMT_COLUMN] = "column",
[ERRFMT_MESSAGE] = "message"
};
UNITTEST {
CHECK_STRING_ARRAY(capture_names);
}
static Compiler *find_or_add_compiler(HashMap *compilers, const char *name)
{
Compiler *c = find_compiler(compilers, name);
return c ? c : hashmap_insert(compilers, xstrdup(name), xnew0(Compiler, 1));
}
Compiler *find_compiler(const HashMap *compilers, const char *name)
{
return hashmap_get(compilers, name);
}
bool add_error_fmt (
HashMap *compilers,
const char *name,
bool ignore,
const char *format,
char **desc
) {
int8_t idx[] = {
[ERRFMT_FILE] = -1,
[ERRFMT_LINE] = -1,
[ERRFMT_COLUMN] = -1,
[ERRFMT_MESSAGE] = 0,
};
size_t max_idx = 0;
for (size_t i = 0, j = 0, n = ARRAYLEN(capture_names); desc[i]; i++) {
BUG_ON(i >= ERRORFMT_CAPTURE_MAX);
if (streq(desc[i], "_")) {
continue;
}
for (j = 0; j < n; j++) {
if (streq(desc[i], capture_names[j])) {
max_idx = i + 1;
idx[j] = max_idx;
break;
}
}
if (unlikely(j == n)) {
return error_msg("unknown substring name %s", desc[i]);
}
}
ErrorFormat *f = xnew(ErrorFormat, 1);
f->ignore = ignore;
static_assert_compatible_types(f->capture_index, idx);
memcpy(f->capture_index, idx, sizeof(idx));
if (unlikely(!regexp_compile(&f->re, format, 0))) {
free(f);
return false;
}
if (unlikely(max_idx > f->re.re_nsub)) {
regfree(&f->re);
free(f);
return error_msg("invalid substring count");
}
Compiler *compiler = find_or_add_compiler(compilers, name);
f->pattern = str_intern(format);
ptr_array_append(&compiler->error_formats, f);
return true;
}
static void free_error_format(ErrorFormat *f)
{
regfree(&f->re);
free(f);
}
void free_compiler(Compiler *c)
{
ptr_array_free_cb(&c->error_formats, FREE_FUNC(free_error_format));
free(c);
}
void remove_compiler(HashMap *compilers, const char *name)
{
Compiler *c = hashmap_remove(compilers, name);
if (c) {
free_compiler(c);
}
}
void collect_errorfmt_capture_names(PointerArray *a, const char *prefix)
{
COLLECT_STRINGS(capture_names, a, prefix);
if (str_has_prefix("_", prefix)) {
ptr_array_append(a, xstrdup("_"));
}
}
void dump_compiler(const Compiler *c, const char *name, String *s)
{
for (size_t i = 0, n = c->error_formats.count; i < n; i++) {
ErrorFormat *e = c->error_formats.ptrs[i];
string_append_literal(s, "errorfmt ");
if (e->ignore) {
string_append_literal(s, "-i ");
}
if (unlikely(name[0] == '-' || e->pattern[0] == '-')) {
string_append_literal(s, "-- ");
}
string_append_escaped_arg(s, name, true);
string_append_byte(s, ' ');
string_append_escaped_arg(s, e->pattern, true);
static_assert(ARRAYLEN(e->capture_index) == 4);
const int8_t *a = e->capture_index;
int max_idx = MAX4(a[0], a[1], a[2], a[3]);
BUG_ON(max_idx > ERRORFMT_CAPTURE_MAX);
for (int j = 1; j <= max_idx; j++) {
const char *capname = "_";
for (size_t k = 0; k < ARRAYLEN(capture_names); k++) {
if (j == a[k]) {
capname = capture_names[k];
break;
}
}
string_append_byte(s, ' ');
string_append_cstring(s, capname);
}
string_append_byte(s, '\n');
}
}
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