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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.
59 lines
1.0 KiB
Fish
59 lines
1.0 KiB
Fish
# RUN: %fish %s
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# Regression test for issue #4443
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eval set -l previously_undefined foo
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echo $previously_undefined
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# CHECK: foo
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# Test redirection
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eval "echo you can\\'t see this 1>&2" 2>/dev/null
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# Test return statuses
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false
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eval true
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echo $status
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# CHECK: 0
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false
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eval false
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echo $status
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# CHECK: 1
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# Test return status in case of parsing error
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false
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eval "("
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echo $status
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# CHECK: 123
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# CHECKERR: {{.*}}checks/eval.fish (line {{\d+}}): Unexpected end of string, expecting ')'
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# CHECKERR: (
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# CHECKERR: ^
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false
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eval '""'
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echo $status
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# CHECK: 123
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# CHECKERR: {{.*}}checks/eval.fish (line {{\d+}}): The expanded command was empty.
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# CHECKERR: ""
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# CHECKERR: ^
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function empty
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end
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# Regression tests for issue #5692
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false
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eval
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echo blank eval: $status # 0
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# CHECK: blank eval: 0
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false
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eval ""
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echo empty arg eval: $status # 0
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# CHECK: empty arg eval: 0
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false
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eval empty
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echo empty function eval $status # 0
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# CHECK: empty function eval 0
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false
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eval "begin; end;"
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echo empty block eval: $status # 0
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# CHECK: empty block eval: 0
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