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Adopted paren-cond ternary operator style

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So:

  x = (cond) ? yes : no;

Where there are always parentheses around the condition, even if not
required for disambiguity. Additional parentheses are always allowed,
but the parenthesized condition helps signal that a ternary operator is
coming earlier in the expression.

This style has grown on me as I think it helps code readability. It
reminds me of the required parentheses for if/while statements.

Might as well adopt codebase-wide.
This commit is contained in:
Christopher Haster
2024-01-20 21:40:00 -06:00
parent 76715ced4a
commit 6fc040db1a
10 changed files with 286 additions and 282 deletions
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tests/test_dread.toml
+80 -76
View File
@@ -22,7 +22,7 @@ code = '''
// make this many directories
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
lfsr_mkdir(&lfs, name) => 0;
}
@@ -32,7 +32,7 @@ code = '''
// because these tests are tightly bound to the current littlefs version.
//
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
lfsr_dir_tell(&lfs, &dir) => 0;
struct lfs_info info;
lfsr_dir_read(&lfs, &dir, &info) => 0;
@@ -76,12 +76,12 @@ code = '''
// make this many directories
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
lfsr_mkdir(&lfs, name) => 0;
}
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
// read our directory once
lfsr_dir_tell(&lfs, &dir) => 0;;
@@ -153,12 +153,12 @@ code = '''
// make this many directories
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
lfsr_mkdir(&lfs, name) => 0;
}
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
// read our directory once
lfsr_dir_tell(&lfs, &dir) => 0;
@@ -246,12 +246,12 @@ code = '''
}
char name[256];
sprintf(name, "%s/ardvark", (PARENT ? "pricklypear" : ""));
sprintf(name, "%s/ardvark", ((PARENT) ? "pricklypear" : ""));
lfsr_mkdir(&lfs, name) => 0;
// read to the end
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
struct lfs_info info;
lfsr_dir_read(&lfs, &dir, &info) => 0;
@@ -351,13 +351,13 @@ code = '''
// create our directories
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
lfsr_mkdir(&lfs, name) => 0;
}
// start reading
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
struct lfs_info info;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
@@ -486,13 +486,13 @@ code = '''
// create our directories
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
lfsr_mkdir(&lfs, name) => 0;
}
// start reading
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
struct lfs_info info;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
@@ -621,13 +621,13 @@ code = '''
// create our directories
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
lfsr_mkdir(&lfs, name) => 0;
}
// start reading
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
struct lfs_info info;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
@@ -750,13 +750,13 @@ code = '''
// create our directories
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i+1);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i+1);
lfsr_mkdir(&lfs, name) => 0;
}
// start reading
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
struct lfs_info info;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
@@ -779,7 +779,7 @@ code = '''
// make a dir at J
char name[256];
sprintf(name, "%s/dir%04d_", (PARENT ? "pricklypear" : ""), (int)J);
sprintf(name, "%s/dir%04d_", ((PARENT) ? "pricklypear" : ""), (int)J);
lfsr_mkdir(&lfs, name) => 0;
// seek after mkdir? this tests that the internal position is
@@ -794,9 +794,11 @@ code = '''
}
// we should be able to keep reading, though we may pick up J
for (lfs_size_t i = I + (I >= J ? 1 : 0); i < N+1; i++) {
for (lfs_size_t i = I + ((I >= J) ? 1 : 0); i < N+1; i++) {
char name[256];
sprintf(name, "dir%04d%s", i+1 - (i >= J ? 1 : 0), (i == J ? "_" : ""));
sprintf(name, "dir%04d%s",
i+1 - ((i >= J) ? 1 : 0),
(i == J) ? "_" : "");
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, name) == 0);
assert(info.type == LFS_TYPE_DIR);
@@ -849,13 +851,13 @@ code = '''
// create our directories
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
lfsr_mkdir(&lfs, name) => 0;
}
// start reading
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
struct lfs_info info;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
@@ -878,7 +880,7 @@ code = '''
// remove the dir at J
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), (int)J);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), (int)J);
lfsr_remove(&lfs, name) => 0;
// seek after remove? this tests that the internal position is
@@ -960,13 +962,13 @@ code = '''
// create our directories
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
lfsr_mkdir(&lfs, name) => 0;
}
// start reading
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
struct lfs_info info;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
@@ -989,13 +991,13 @@ code = '''
// rename the dir at J
char old_name[256];
sprintf(old_name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), (int)J);
sprintf(old_name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), (int)J);
char new_name[256];
sprintf(new_name, "%s/%smved%04d",
(PARENT == 1 ? "pricklypear"
: PARENT >= 2 ? "quiabentia"
((PARENT == 1) ? "pricklypear"
: (PARENT >= 2) ? "quiabentia"
: ""),
(BEFORE ? "0" : ""),
((BEFORE) ? "0" : ""),
(int)J);
lfsr_rename(&lfs, old_name, new_name) => 0;
@@ -1076,13 +1078,13 @@ code = '''
// create our directories
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i+1);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i+1);
lfsr_mkdir(&lfs, name) => 0;
}
// start reading
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
struct lfs_info info;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
@@ -1105,11 +1107,11 @@ code = '''
// make a dir at J
char name[256];
sprintf(name, "%s/dir%04d_", (PARENT ? "pricklypear" : ""), (int)J);
sprintf(name, "%s/dir%04d_", ((PARENT) ? "pricklypear" : ""), (int)J);
lfsr_mkdir(&lfs, name) => 0;
// make a dir at K
sprintf(name, "%s/dir%04d_", (PARENT ? "pricklypear" : ""), (int)K);
sprintf(name, "%s/dir%04d_", ((PARENT) ? "pricklypear" : ""), (int)K);
lfsr_mkdir(&lfs, name) => 0;
// seek after mkdir? this tests that the internal position is
@@ -1124,12 +1126,14 @@ code = '''
}
// we should be able to keep reading, though we may pick up J
for (lfs_size_t i = I + (I >= J ? 1 : 0) + (I >= K ? 1 : 0); i < N+2; i++) {
for (lfs_size_t i = I + ((I >= J) ? 1 : 0) + ((I >= K) ? 1 : 0);
i < N+2;
i++) {
char name[256];
sprintf(name, "dir%04d%s",
i+1 - (i >= J + (J >= K ? 1 : 0) ? 1 : 0)
- (i >= K + (K >= J ? 1 : 0) ? 1 : 0),
(i == J + (J > K ? 1 : 0) || i == K + (K > J ? 1 : 0)
i+1 - (i >= J + ((J >= K) ? 1 : 0) ? 1 : 0)
- (i >= K + ((K >= J) ? 1 : 0) ? 1 : 0),
(i == J + ((J > K) ? 1 : 0) || i == K + ((K > J) ? 1 : 0)
? "_" : ""));
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, name) == 0);
@@ -1187,13 +1191,13 @@ code = '''
// create our directories
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
lfsr_mkdir(&lfs, name) => 0;
}
// start reading
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
struct lfs_info info;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
@@ -1216,11 +1220,11 @@ code = '''
// remove the dir at J
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), (int)J);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), (int)J);
lfsr_remove(&lfs, name) => 0;
// remove the dir at K
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), (int)K);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), (int)K);
lfsr_remove(&lfs, name) => 0;
// seek after remove? this tests that the internal position is
@@ -1306,13 +1310,13 @@ code = '''
// create our directories
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
lfsr_mkdir(&lfs, name) => 0;
}
// start reading
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
struct lfs_info info;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
@@ -1335,23 +1339,23 @@ code = '''
// rename the dir at J
char old_name[256];
sprintf(old_name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), (int)J);
sprintf(old_name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), (int)J);
char new_name[256];
sprintf(new_name, "%s/%smved%04d",
(PARENT == 1 ? "pricklypear"
: PARENT >= 2 ? "quiabentia"
((PARENT == 1) ? "pricklypear"
: (PARENT >= 2) ? "quiabentia"
: ""),
(BEFORE ? "0" : ""),
((BEFORE) ? "0" : ""),
(int)J);
lfsr_rename(&lfs, old_name, new_name) => 0;
// rename the dir at K
sprintf(old_name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), (int)K);
sprintf(old_name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), (int)K);
sprintf(new_name, "%s/%smved%04d",
(PARENT == 1 ? "pricklypear"
: PARENT >= 2 ? "quiabentia"
((PARENT == 1) ? "pricklypear"
: (PARENT >= 2) ? "quiabentia"
: ""),
(BEFORE ? "0" : ""),
((BEFORE) ? "0" : ""),
(int)K);
lfsr_rename(&lfs, old_name, new_name) => 0;
@@ -1511,7 +1515,7 @@ code = '''
// make this many directories
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
err = lfsr_mkdir(&lfs, name);
assert(!err || (TEST_PLS && err == LFS_ERR_EXIST));
}
@@ -1519,7 +1523,7 @@ code = '''
// check that our mkdir worked
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
struct lfs_info info;
lfsr_stat(&lfs, name, &info) => 0;
char name2[256];
@@ -1530,7 +1534,7 @@ code = '''
}
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
struct lfs_info info;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
@@ -1552,7 +1556,7 @@ code = '''
lfsr_dir_close(&lfs, &dir) => 0;
// now remove directories recursively
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
assert(info.type == LFS_TYPE_DIR);
@@ -1570,7 +1574,7 @@ code = '''
assert(info.size == 0);
char path[1024];
sprintf(path, "%s/%s", (PARENT ? "pricklypear" : ""), info.name);
sprintf(path, "%s/%s", ((PARENT) ? "pricklypear" : ""), info.name);
lfsr_remove(&lfs, path) => 0;
// seek between removes? this tests that the internal position is
@@ -1590,12 +1594,12 @@ code = '''
// check that our removes worked
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
struct lfs_info info;
lfsr_stat(&lfs, name, &info) => LFS_ERR_NOENT;
}
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
assert(info.type == LFS_TYPE_DIR);
@@ -1650,20 +1654,20 @@ code = '''
// check if we have already started renaming, in case of powerloss
struct lfs_info info;
err = lfsr_stat(&lfs,
(PARENT == 1 ? (BEFORE
((PARENT == 1) ? ((BEFORE)
? "pricklypear/0mved0000"
: "pricklypear/mved0000")
: PARENT >= 2 ? (BEFORE
: (PARENT >= 2) ? ((BEFORE)
? "quiabentia/0mved0000"
: "quiabentia/mved0000")
: (BEFORE
: ((BEFORE)
? "/0mved0000"
: "/mved0000")), &info);
if (err == LFS_ERR_NOENT) {
// make this many directories
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
err = lfsr_mkdir(&lfs, name);
assert(!err || (TEST_PLS && err == LFS_ERR_EXIST));
}
@@ -1671,7 +1675,7 @@ code = '''
// check that our mkdir worked
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
struct lfs_info info;
lfsr_stat(&lfs, name, &info) => 0;
char name2[256];
@@ -1682,7 +1686,7 @@ code = '''
}
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
struct lfs_info info;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
@@ -1706,7 +1710,7 @@ code = '''
// now rename directories recursively
lfsr_dir_t dir;
lfsr_dir_open(&lfs, &dir, (PARENT ? "pricklypear" : "/")) => 0;
lfsr_dir_open(&lfs, &dir, ((PARENT) ? "pricklypear" : "/")) => 0;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
assert(info.type == LFS_TYPE_DIR);
@@ -1731,13 +1735,13 @@ code = '''
assert(info.size == 0);
char old_path[1024];
sprintf(old_path, "%s/%s", (PARENT ? "pricklypear" : ""), info.name);
sprintf(old_path, "%s/%s", ((PARENT) ? "pricklypear" : ""), info.name);
char new_path[1024];
sprintf(new_path, "%s/%smved%s",
(PARENT == 1 ? "pricklypear"
: PARENT >= 2 ? "quiabentia"
((PARENT == 1) ? "pricklypear"
: (PARENT >= 2) ? "quiabentia"
: ""),
(BEFORE ? "0" : ""),
((BEFORE) ? "0" : ""),
&info.name[strlen("dir")]);
err = lfsr_rename(&lfs, old_path, new_path);
assert(!err || (TEST_PLS && err == LFS_ERR_NOENT));
@@ -1758,27 +1762,27 @@ code = '''
// check that our renames worked
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%s/dir%04d", (PARENT ? "pricklypear" : ""), i);
sprintf(name, "%s/dir%04d", ((PARENT) ? "pricklypear" : ""), i);
struct lfs_info info;
lfsr_stat(&lfs, name, &info) => LFS_ERR_NOENT;
sprintf(name, "%s/%smved%04d",
(PARENT == 1 ? "pricklypear"
: PARENT >= 2 ? "quiabentia"
((PARENT == 1) ? "pricklypear"
: (PARENT >= 2) ? "quiabentia"
: ""),
(BEFORE ? "0" : ""),
((BEFORE) ? "0" : ""),
i);
lfsr_stat(&lfs, name, &info) => 0;
char name2[256];
sprintf(name2, "%smved%04d", (BEFORE ? "0" : ""), i);
sprintf(name2, "%smved%04d", ((BEFORE) ? "0" : ""), i);
assert(strcmp(info.name, name2) == 0);
assert(info.type == LFS_TYPE_DIR);
assert(info.size == 0);
}
lfsr_dir_open(&lfs, &dir,
(PARENT == 1 ? "pricklypear"
: PARENT >= 2 ? "quiabentia"
((PARENT == 1) ? "pricklypear"
: (PARENT >= 2) ? "quiabentia"
: "/")) => 0;
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, ".") == 0);
@@ -1790,7 +1794,7 @@ code = '''
assert(info.size == 0);
for (lfs_size_t i = 0; i < N; i++) {
char name[256];
sprintf(name, "%smved%04d", (BEFORE ? "0" : ""), i);
sprintf(name, "%smved%04d", ((BEFORE) ? "0" : ""), i);
lfsr_dir_read(&lfs, &dir, &info) => 0;
assert(strcmp(info.name, name) == 0);
assert(info.type == LFS_TYPE_DIR);