sapling/tests/test-extensions-wrapfunction.py.out

wrap 0: [0, 'orig']
wrap 1: [1, 0, 'orig']
wrap 2: [2, 1, 0, 'orig']
wrap 3: [3, 2, 1, 0, 'orig']
wrap 4: [4, 3, 2, 1, 0, 'orig']
wrap 0: [0, 4, 3, 2, 1, 0, 'orig']
unwrap 3: 3: [0, 4, 2, 1, 0, 'orig']
unwrap -: 0: [4, 2, 1, 0, 'orig']
unwrap 0: 0: [4, 2, 1, 'orig']
unwrap 4: 4: [2, 1, 'orig']
unwrap 0: -: ValueError
unwrap 2: 2: [1, 'orig']
unwrap 1: 1: ['orig']
unwrap -: -: IndexError
context manager ['orig']
context manager [1, 'orig']
context manager [0, 1, 'orig']
context manager [2, 0, 1, 'orig']
context manager [2, 1, 'orig']
context manager [2, 'orig']
wrap callable object [0, 'orig']
extensions: add unwrapfunction to undo wrapfunction Before this patch, we don't have a safe way to undo a wrapfunction because other extensions may wrap the same function and calling setattr will undo them accidentally. This patch adds an "unwrapfunction" to address the issue. It removes the wrapper from the wrapper chain, and re-wraps everything, which is not the most efficient but short and easy to understand. We can revisit the code if we have perf issues with long chains. The "undo" feature is useful in cases like wrapping a function just in a scope. Like, having a "select" command to interactively (using arrow keys) select content from some output (ex. smartlog). It could wrap "ui.label" to extract interesting texts just in the "select" command. 2016-08-10 18:27:33 +03:00			`wrap 0: [0, 'orig']`
			`wrap 1: [1, 0, 'orig']`
			`wrap 2: [2, 1, 0, 'orig']`
			`wrap 3: [3, 2, 1, 0, 'orig']`
			`wrap 4: [4, 3, 2, 1, 0, 'orig']`
			`wrap 0: [0, 4, 3, 2, 1, 0, 'orig']`
			`unwrap 3: 3: [0, 4, 2, 1, 0, 'orig']`
			`unwrap -: 0: [4, 2, 1, 0, 'orig']`
			`unwrap 0: 0: [4, 2, 1, 'orig']`
			`unwrap 4: 4: [2, 1, 'orig']`
			`unwrap 0: -: ValueError`
			`unwrap 2: 2: [1, 'orig']`
			`unwrap 1: 1: ['orig']`
			`unwrap -: -: IndexError`
extensions: add wrappedfunction() context manager Several extensions exist that temporarily want to wrap a function (at least narrowhg, any many of the extensions in hg-experimental). That's why we have the unwrapfunction() that was introduced in c8cda8f6f043 (extensions: add unwrapfunction to undo wrapfunction, 2016-08-10). This patch adds a simple wrappedfunction() that returns a context manager. Differential Revision: https://phab.mercurial-scm.org/D472 2017-08-22 02:46:05 +03:00			`context manager ['orig']`
			`context manager [1, 'orig']`
			`context manager [0, 1, 'orig']`
			`context manager [2, 0, 1, 'orig']`
			`context manager [2, 1, 'orig']`
			`context manager [2, 'orig']`
extensions: fix wrapcommand/function of class instance 5f4c097a17d2 changed _updatewrapper() to copy the __name__ attribute, but not all callable objects has __name__. Spotted by loading mq with extdiff. 2017-09-10 17:37:14 +03:00			`wrap callable object [0, 'orig']`