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refactor(runtime.c): factor out find_script_by_name() (#22620)

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This the refactoring done in Vim patch 8.2.4050.
This commit is contained in:
zeertzjq 2023-03-11 12:47:27 +08:00 committed by GitHub
parent 674e23f19c
commit a7cd79349c
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1 changed files with 30 additions and 20 deletions
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50
src/nvim/runtime.c
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@ -2187,6 +2187,25 @@ theend:
return retval;
}
/// Find an already loaded script "name".
/// If found returns its script ID. If not found returns -1.
static int find_script_by_name(char *name)
{
assert(script_items.ga_len >= 0);
for (int sid = script_items.ga_len; sid > 0; sid--) {
// We used to check inode here, but that doesn't work:
// - If a script is edited and written, it may get a different
// inode number, even though to the user it is the same script.
// - If a script is deleted and another script is written, with a
// different name, the inode may be re-used.
scriptitem_T *si = SCRIPT_ITEM(sid);
if (si->sn_name != NULL && path_fnamecmp(si->sn_name, name) == 0) {
return sid;
}
}
return -1;
}
/// Check if fname was sourced before to finds its SID.
/// If it's new, generate a new SID.
///
@ -2196,28 +2215,19 @@ scriptitem_T *get_current_script_id(char **fnamep, sctx_T *ret_sctx)
{
static int last_current_SID_seq = 0;
sctx_T script_sctx = { .sc_seq = ++last_current_SID_seq,
.sc_lnum = 0,
.sc_sid = 0 };
scriptitem_T *si = NULL;
assert(script_items.ga_len >= 0);
for (script_sctx.sc_sid = script_items.ga_len; script_sctx.sc_sid > 0; script_sctx.sc_sid--) {
// We used to check inode here, but that doesn't work:
// - If a script is edited and written, it may get a different
// inode number, even though to the user it is the same script.
// - If a script is deleted and another script is written, with a
// different name, the inode may be re-used.
si = SCRIPT_ITEM(script_sctx.sc_sid);
if (si->sn_name != NULL && path_fnamecmp(si->sn_name, *fnamep) == 0) {
// Found it!
break;
}
}
if (script_sctx.sc_sid == 0) {
si = new_script_item(*fnamep, &script_sctx.sc_sid);
scriptitem_T *si;
int sid = find_script_by_name(*fnamep);
if (sid > 0) {
si = SCRIPT_ITEM(sid);
} else {
si = new_script_item(*fnamep, &sid);
*fnamep = xstrdup(si->sn_name);
}
sctx_T script_sctx = { .sc_seq = ++last_current_SID_seq,
.sc_lnum = 0,
.sc_sid = sid };
if (ret_sctx != NULL) {
*ret_sctx = script_sctx;
}