Mercurial > hg
view tests/test-strict.t @ 25996:b12e00a05d57 stable
revset: prevent crash caused by empty group expression while optimizing "or"
An empty group expression "()" generates None in AST, so it should be tested
before destructuring a tuple.
"A | ()" is still evaluated to an error because I'm not sure whether "()"
represents an empty set or an empty expression (= a unit value). They are
identical in "or" operation, but they should be evaluated differently in
"and" operation.
expression empty set unit value
---------- --------- ----------
() {} A
A & () {} A
A | () A A
author | Yuya Nishihara <yuya@tcha.org> |
---|---|
date | Sun, 09 Aug 2015 16:09:41 +0900 |
parents | 3bd577a3283e |
children | 7109d5ddeb0c |
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$ hg init $ echo a > a $ hg ci -Ama adding a $ hg an a 0: a $ hg --config ui.strict=False an a 0: a $ echo "[ui]" >> $HGRCPATH $ echo "strict=True" >> $HGRCPATH $ hg an a hg: unknown command 'an' Mercurial Distributed SCM basic commands: add add the specified files on the next commit annotate show changeset information by line for each file clone make a copy of an existing repository commit commit the specified files or all outstanding changes diff diff repository (or selected files) export dump the header and diffs for one or more changesets forget forget the specified files on the next commit init create a new repository in the given directory log show revision history of entire repository or files merge merge another revision into working directory pull pull changes from the specified source push push changes to the specified destination remove remove the specified files on the next commit serve start stand-alone webserver status show changed files in the working directory summary summarize working directory state update update working directory (or switch revisions) (use "hg help" for the full list of commands or "hg -v" for details) [255] $ hg annotate a 0: a should succeed - up is an alias, not an abbreviation $ hg up 0 files updated, 0 files merged, 0 files removed, 0 files unresolved