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https://github.com/fish-shell/fish-shell
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3847d2e9d1
For some reason, we have two places where a variable can be read-only: - By key in env.cpp:is_read_only(), which is checked via set* - By flag on the actual env_var_t, which is checked e.g. in parse_execution The latter didn't happen for non-electric variables like hostname, because they used the default constructor, because they were constructed via operator[] (or some such C++-iness). This caused for-loops to crash on an assert if they used a non-electric read-only var like $hostname or $SHLVL. Instead, we explicitly set the flag. We might want to remove one of the two read-only checks, or something? Fixes #5548.
57 lines
1.3 KiB
Text
57 lines
1.3 KiB
Text
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# Simple function tests
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# Ensure eval doesn't unnecessarily mess with the exit status
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# Verify that we can turn stderr into stdout and then pipe it
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# Test that trailing ^ doesn't trigger redirection, see #1873
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# echo tests
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# Verify that pipes don't conflict with fd redirections
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# Make sure while loops don't run forever with no-exec (#1543)
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# For loops with read-only vars is an error (#4342)
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fish: You cannot use read-only variable 'status' in a for loop
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for status in a b c
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^
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# That goes for non-electric ones as well (#5548)
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fish: You cannot use read-only variable 'hostname' in a for loop
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for hostname in a b c
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^
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# For loop control vars available outside the for block
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# Comments allowed in between lines (#1987)
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# Backslashes are part of comments and do not join lines (#1255)
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# Verify $argv set correctly in sourced scripts (#139)
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