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39540: "! command" should suppress ERR_EXIT and ERR_RETURN

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This commit is contained in:
Peter Stephenson 2016-10-02 19:16:03 +01:00
parent 4f2a1810f2
commit 6b2585147b
3 changed files with 48 additions and 2 deletions
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5
ChangeLog
View file

@ -1,3 +1,8 @@
2016-10-02 Peter Stephenson <p.w.stephenson@ntlworld.com>
* 39540: Src/exec.c, Test/C03traps.ztst: "! command" should
suppress ERR_EXIT and ERR_RETURN.
2016-09-30 Daniel Shahaf <d.s@daniel.shahaf.name>
* 39495: Doc/Zsh/contrib.yo, Functions/Misc/add-zle-hook-widget:

8
Src/exec.c
View file

@ -1226,6 +1226,7 @@ execlist(Estate state, int dont_change_job, int exiting)
}
while (wc_code(code) == WC_LIST && !breaks && !retflag && !errflag) {
int donedebug;
int this_noerrexit = 0;
ltype = WC_LIST_TYPE(code);
csp = cmdsp;
@ -1309,9 +1310,12 @@ execlist(Estate state, int dont_change_job, int exiting)
goto sublist_done;
}
while (wc_code(code) == WC_SUBLIST) {
int isend = (WC_SUBLIST_TYPE(code) == WC_SUBLIST_END);
next = state->pc + WC_SUBLIST_SKIP(code);
if (!oldnoerrexit)
noerrexit = (WC_SUBLIST_TYPE(code) != WC_SUBLIST_END);
noerrexit = !isend;
if ((WC_SUBLIST_FLAGS(code) & WC_SUBLIST_NOT) && isend)
this_noerrexit = 1;
switch (WC_SUBLIST_TYPE(code)) {
case WC_SUBLIST_END:
/* End of sublist; just execute, ignoring status. */
@ -1427,7 +1431,7 @@ sublist_done:
/* Check whether we are suppressing traps/errexit *
* (typically in init scripts) and if we haven't *
* already performed them for this sublist. */
if (!noerrexit && !donetrap) {
if (!noerrexit && !this_noerrexit && !donetrap) {
if (sigtrapped[SIGZERR] && lastval) {
dotrap(SIGZERR);
donetrap = 1;

37
Test/C03traps.ztst
View file

@ -519,6 +519,43 @@
>Yes
F:Must be tested with a top-level script rather than source or function
fn() {
emulate -L zsh
setopt errreturn
print before
false
print after
}
fn
1:ERRRETURN, basic case
>before
fn() {
emulate -L zsh
setopt errreturn
print before
! true
! false
print after
}
fn
0:ERRETURN with "!"
>before
>after
fn() {
emulate -L zsh
setopt errreturn
print before
! true
! false
false
print after
}
fn
1:ERRETURN with "!" and a following false
>before
%clean
rm -f TRAPEXIT