fish-shell/tests/checks/syntax-error-location.fish
Fabian Boehm 8d5d0c24aa expand_cmdsubst: Make more errors known
These printed "Unknown error while evaluating command substitution".

Now they print something like

```
fish: for: status: cannot overwrite read-only variable
for status in foo; end
    ^~~~~^
in command substitution
fish: Invalid arguments
echo (for status in foo; end)
     ^~~~~~~~~~~~~~~~~~~~~~~^
```

for `echo (for status in foo; end)`

This is, of course, still not *great*. Mostly the `fish: Invalid
arguments` is basically entirely redundant.

An alternative is to simply skip the error message, but that requires some
more scaffolding (describe_with_prefix adds some error messages on its
own, so we can't simply say "don't add the prefix if we don't have a
message")

(cherry picked from commit 1b5eec2af6)
(cherry picked from commit 67faa107b0)
2023-11-09 17:53:32 +01:00

120 lines
4.2 KiB
Fish

#RUN: %fish -C 'set -g fish %fish' %s
# A $status used as a command should not impact the location of other errors.
echo 'echo foo | exec grep # this exec is not allowed!
$status
# The error might be found here!' | $fish 2>| string replace -r '(.*)' '<$1>'
# CHECK: <fish: The 'exec' command can not be used in a pipeline>
# CHECK: <echo foo | exec grep # this exec is not allowed!>
# CHECK: < ^~~~~~~~^>
echo 'true | time false' | $fish 2>| string replace -r '(.*)' '<$1>'
# CHECK: <fish: The 'time' command may only be at the beginning of a pipeline>
# CHECK: <true | time false>
# CHECK: < ^~~~~~~~~^>
echo '
FOO=BAR (true one)
(true two)
# more things
' | $fish 2>| string replace -r '(.*)' '<$1>'
# CHECK: <fish: command substitutions not allowed here>
# CHECK: <FOO=BAR (true one)>
# CHECK: < ^~~~~~~~~^>
$fish -c 'echo "unfinished "(subshell' 2>| string replace -r '.*' '<$0>'
# CHECK: <fish: Unexpected end of string, expecting ')'>
# CHECK: <echo "unfinished "(subshell>
# CHECK: < ^>
$fish -c 'echo "unfinished "$(subshell' 2>| string replace -r '.*' '<$0>'
# CHECK: <fish: Unexpected end of string, expecting ')'>
# CHECK: <echo "unfinished "$(subshell>
# CHECK: < ^>
$fish -c 'echo "ok $(echo still ok)syntax error: \x"' 2>| string replace -r '.*' '<$0>'
# CHECK: <fish: Invalid token '"ok $(echo still ok)syntax error: \x"'>
# CHECK: <echo "ok $(echo still ok)syntax error: \x">
# CHECK: < ^~~~~~~~~~~~~~~~^>
echo "function this_should_be_an_error" >$TMPDIR/this_should_be_an_error.fish
$fish -c "set -g fish_function_path $(string escape $TMPDIR); this_should_be_an_error"
# CHECKERR: ~/temp/this_should_be_an_error.fish (line 1): Missing end to balance this function definition
# CHECKERR: function this_should_be_an_error
# CHECKERR: ^~~~~~~^
# CHECKERR: from sourcing file ~/temp/this_should_be_an_error.fish
# CHECKERR: source: Error while reading file '{{.*}}/this_should_be_an_error.fish'
# CHECKERR: fish: Unknown command: this_should_be_an_error
# CHECKERR: fish:
# CHECKERR: set -g fish_function_path {{.*}}; this_should_be_an_error
# CHECKERR: ^~~~~~~~~~~~~~~~~~~~~~^
$fish -c 'echo {$}'
# CHECKERR: fish: Expected a variable name after this $.
# CHECKERR: echo {$}
# CHECKERR: ^
$fish -c 'echo {$,}'
# CHECKERR: fish: Expected a variable name after this $.
# CHECKERR: echo {$,}
# CHECKERR: ^
echo "bind -M" | $fish
# CHECKERR: bind: -M: option requires an argument
# CHECKERR: Standard input (line 1):
# CHECKERR: bind -M
# CHECKERR: ^
# CHECKERR: (Type 'help bind' for related documentation)
$fish -c 'echo (for status in foo; end)'
# CHECKERR: fish: for: status: cannot overwrite read-only variable
# CHECKERR: for status in foo; end
# CHECKERR: ^~~~~^
# CHECKERR: in command substitution
# CHECKERR: fish: Invalid arguments
# CHECKERR: echo (for status in foo; end)
# CHECKERR: ^~~~~~~~~~~~~~~~~~~~~~~^
$fish -c 'echo (echo <&foo)'
# CHECKERR: fish: Requested redirection to 'foo', which is not a valid file descriptor
# CHECKERR: echo <&foo
# CHECKERR: ^~~~^
# CHECKERR: in command substitution
# CHECKERR: fish: Invalid arguments
# CHECKERR: echo (echo <&foo)
# CHECKERR: ^~~~~~~~~~~^
$fish -c 'echo (time echo foo &)'
# CHECKERR: fish: 'time' is not supported for background jobs. Consider using 'command time'.
# CHECKERR: time echo foo &
# CHECKERR: ^~~~~~~~~~~~~~^
# CHECKERR: in command substitution
# CHECKERR: fish: Invalid arguments
# CHECKERR: echo (time echo foo &)
# CHECKERR: ^~~~~~~~~~~~~~~~^
$fish -c 'echo (set -l foo 1 2 3; for $foo in foo; end)'
# CHECKERR: fish: Unable to expand variable name ''
# CHECKERR: set -l foo 1 2 3; for $foo in foo; end
# CHECKERR: ^~~^
# CHECKERR: in command substitution
# CHECKERR: fish: Expansion error
# CHECKERR: echo (set -l foo 1 2 3; for $foo in foo; end)
# CHECKERR: ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
$fish -c 'echo (echo *nosuchname*)'
# CHECKERR: fish: No matches for wildcard '*nosuchname*'. See `help wildcards-globbing`.
# CHECKERR: echo *nosuchname*
# CHECKERR: ^~~~~~~~~~~^
# CHECKERR: in command substitution
# CHECKERR: fish: Unmatched wildcard
# CHECKERR: echo (echo *nosuchname*)
# CHECKERR: ^~~~~~~~~~~~~~~~~~^