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38f4330683
Prior to this fix, fish was rather inconsistent in when $status gets set in response to an error. For example, a failed expansion like "$foo[" would not modify $status. This makes the following inter-related changes: 1. String expansion now directly returns the value to set for $status on error. The value is always used. 2. parser_t::eval() now directly returns the proc_status_t, which cleans up a lot of call sites. 3. We expose a new function exec_subshell_for_expand() which ignores $status but returns errors specifically related to subshell expansion. 4. We reify the notion of "expansion breaking" errors. These include command-not-found, expand syntax errors, and others. The upshot is we are more consistent about always setting $status on errors.
27 lines
567 B
Fish
27 lines
567 B
Fish
# RUN: %fish %s
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# Empty commands should be 123
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set empty_var
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$empty_var
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echo $status
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# CHECK: 123
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# CHECKERR: {{.*}} The expanded command was empty.
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# CHECKERR: $empty_var
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# CHECKERR: ^
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# Failed expansions
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echo "$abc["
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echo $status
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# CHECK: 121
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# CHECKERR: {{.*}} Invalid index value
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# CHECKERR: echo "$abc["
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# CHECKERR: ^
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# Failed wildcards
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echo *gibberishgibberishgibberish*
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echo $status
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# CHECK: 124
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# CHECKERR: {{.*}} No matches for wildcard '*gibberishgibberishgibberish*'. {{.*}}
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# CHECKERR: echo *gibberishgibberishgibberish*
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# CHECKERR: ^
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