github-mirror/fish-shell
2
0
Fork 0
mirror of https://github.com/fish-shell/fish-shell.git synced 2024-11-22 12:41:08 +08:00
Code Issues Actions Packages Projects Releases Wiki Activity

Teach fish how to push and pop blocks even in the face of no_exec. All tests finally pass.

Browse Source 
https://github.com/fish-shell/fish-shell/issues/624
This commit is contained in:
ridiculousfish 2013-03-25 16:06:12 -07:00
parent d146f578a4
commit b04e874e43
4 changed files with 43 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
builtin.cpp
View File

@ -211,6 +211,10 @@ static int count_char(const wchar_t *str, wchar_t c)
wcstring builtin_help_get(parser_t &parser, const wchar_t *name)
{
/* This won't ever work if no_exec is set */
if (no_exec)
return wcstring();
wcstring_list_t lst;
wcstring out;
const wcstring name_esc = escape_string(name, 1);
@ -3481,7 +3485,7 @@ static int builtin_end(parser_t &parser, wchar_t **argv)
are rewinding a loop, this should be set to false, so that
variables in the current loop scope won't die between laps.
*/
int kill_block = 1;
bool kill_block = true;
switch (parser.current_block->type())
{
@ -3495,7 +3499,7 @@ static int builtin_end(parser_t &parser, wchar_t **argv)
{
parser.current_block->loop_status = LOOP_NORMAL;
parser.current_block->skip = 0;
kill_block = 0;
kill_block = false;
parser.set_pos(parser.current_block->tok_pos);
while_block_t *blk = static_cast<while_block_t *>(parser.current_block);
blk->status = WHILE_TEST_AGAIN;
@ -3536,7 +3540,7 @@ static int builtin_end(parser_t &parser, wchar_t **argv)
parser.current_block->loop_status = LOOP_NORMAL;
parser.current_block->skip = 0;
kill_block = 0;
kill_block = false;
parser.set_pos(parser.current_block->tok_pos);
}
break;

36
exec.cpp
View File

@ -538,6 +538,37 @@ static bool can_use_posix_spawn_for_job(const job_t *job, const process_t *proce
return result;
}
/* What exec does if no_exec is set. This only has to handle block pushing and popping. See #624. */
static void exec_no_exec(parser_t &parser, const job_t *job)
{
/* Hack hack hack. If this is an 'end' job, then trigger a pop. If this is a job that would create a block, trigger a push. See #624 */
const process_t *p = job->first_process;
if (p && p->type == INTERNAL_BUILTIN)
{
const wchar_t *builtin_name_cstr = p->argv0();
if (builtin_name_cstr != NULL)
{
const wcstring builtin_name = builtin_name_cstr;
if (contains(builtin_name, L"for", L"function", L"begin", L"switch"))
{
// The above builtins are the ones that produce an unbalanced block from within their function implementation
// This list should be maintained somewhere else
parser.push_block(new fake_block_t());
}
else if (builtin_name == L"end")
{
if (parser.current_block == NULL || parser.current_block->type() == TOP)
{
fprintf(stderr, "Warning: not popping the root block\n");
}
else
{
parser.pop_block();
}
}
}
}
}
void exec(parser_t &parser, job_t *j)
{
@ -559,8 +590,10 @@ void exec(parser_t &parser, job_t *j)
CHECK(j,);
CHECK_BLOCK();
if (no_exec)
if (no_exec) {
exec_no_exec(parser, j);
return;
}
sigemptyset(&chldset);
sigaddset(&chldset, SIGCHLD);
@ -1269,7 +1302,6 @@ void exec(parser_t &parser, job_t *j)
p->pid = pid;
set_child_group(j, p, 0);
}
break;

6
tests/top.err
View File

@ -1,6 +0,0 @@
fish: Expected redirection specification, got token of type '$i'
/usr/local/src/grissioms-fish-shell/tests/test.fish (line 51): ../fish <$i >tmp.out ^tmp.err
^
fish: Expected redirection specification, got token of type '$i'
/usr/local/src/grissioms-fish-shell/tests/test.fish (line 51): ../fish <$i >tmp.out ^tmp.err
^

2
tests/top.out
View File

@ -1,4 +1,5 @@
Testing high level script functionality
File printf.in tested ok
File test1.in tested ok
File test2.in tested ok
File test3.in tested ok
@ -7,3 +8,4 @@ File test5.in tested ok
File test6.in tested ok
File test7.in tested ok
File test8.in tested ok
File test9.in tested ok