[PATCH STABLE] revset: flatten chained 'list' operations (aka function args) (issue5072)
Yuya Nishihara
yuya at tcha.org
Thu Feb 4 15:08:52 UTC 2016
# HG changeset patch
# User Yuya Nishihara <yuya at tcha.org>
# Date 1454424589 -32400
# Tue Feb 02 23:49:49 2016 +0900
# Branch stable
# Node ID 016bccc8a86965cba08d3d6ad77638dfb81cd5e0
# Parent c58c4683e2b71a18d6b82f2e8c6e7607b1079bef
revset: flatten chained 'list' operations (aka function args) (issue5072)
Internal _matchfiles() function can take bunch of arguments, which would
lead to a maximum recursion depth error. This patch avoids the excessive
stack use by flattening 'list' nodes beforehand.
Since getlist() no longer takes a nested 'list' nodes, _parsealiasdecl()
also needs to flatten argument list, "aliasname($1, $2, ...)".
diff --git a/mercurial/revset.py b/mercurial/revset.py
--- a/mercurial/revset.py
+++ b/mercurial/revset.py
@@ -319,7 +319,7 @@ def getlist(x):
if not x:
return []
if x[0] == 'list':
- return getlist(x[1]) + [x[2]]
+ return list(x[1:])
return [x]
def getargs(x, min, max, err):
@@ -448,7 +448,7 @@ def orset(repo, subset, *xs):
def notset(repo, subset, x):
return subset - getset(repo, subset, x)
-def listset(repo, subset, a, b):
+def listset(repo, subset, *xs):
raise error.ParseError(_("can't use a list in this context"),
hint=_('see hg help "revsets.x or y"'))
@@ -2252,7 +2252,7 @@ def optimize(x, small):
return o[0], (op, o[1])
elif op == 'group':
return optimize(x[1], small)
- elif op in 'dagrange range list parent ancestorspec':
+ elif op in 'dagrange range parent ancestorspec':
if op == 'parent':
# x^:y means (x^) : y, not x ^ (:y)
post = ('parentpost', x[1])
@@ -2264,6 +2264,9 @@ def optimize(x, small):
wa, ta = optimize(x[1], small)
wb, tb = optimize(x[2], small)
return wa + wb, (op, ta, tb)
+ elif op == 'list':
+ ws, ts = zip(*(optimize(y, small) for y in x[1:]))
+ return sum(ws), (op,) + ts
elif op == 'func':
f = getstring(x[1], _("not a symbol"))
wa, ta = optimize(x[2], small)
@@ -2365,6 +2368,7 @@ def _parsealiasdecl(decl):
tree, pos = p.parse(_tokenizealias(decl))
if (pos != len(decl)):
raise error.ParseError(_('invalid token'), pos)
+ tree = parser.simplifyinfixops(tree, ('list',))
if isvalidsymbol(tree):
# "name = ...." style
@@ -2455,7 +2459,7 @@ def _parsealiasdefn(defn, args):
tree, pos = p.parse(tokenizedefn(defn))
if pos != len(defn):
raise error.ParseError(_('invalid token'), pos)
- return parser.simplifyinfixops(tree, ('or',))
+ return parser.simplifyinfixops(tree, ('list', 'or'))
class revsetalias(object):
# whether own `error` information is already shown or not.
@@ -2586,7 +2590,7 @@ def parse(spec, lookup=None):
tree, pos = p.parse(tokenize(spec, lookup=lookup))
if pos != len(spec):
raise error.ParseError(_("invalid token"), pos)
- return parser.simplifyinfixops(tree, ('or',))
+ return parser.simplifyinfixops(tree, ('list', 'or'))
def posttreebuilthook(tree, repo):
# hook for extensions to execute code on the optimized tree
diff --git a/tests/test-glog.t b/tests/test-glog.t
--- a/tests/test-glog.t
+++ b/tests/test-glog.t
@@ -1602,11 +1602,9 @@ Test falling back to slow path for non-e
(func
('symbol', '_matchfiles')
(list
- (list
- (list
- ('string', 'r:')
- ('string', 'd:relpath'))
- ('string', 'p:a'))
+ ('string', 'r:')
+ ('string', 'd:relpath')
+ ('string', 'p:a')
('string', 'p:c'))))
Test multiple --include/--exclude/paths
@@ -1617,19 +1615,13 @@ Test multiple --include/--exclude/paths
(func
('symbol', '_matchfiles')
(list
- (list
- (list
- (list
- (list
- (list
- (list
- ('string', 'r:')
- ('string', 'd:relpath'))
- ('string', 'p:a'))
- ('string', 'p:e'))
- ('string', 'i:a'))
- ('string', 'i:e'))
- ('string', 'x:b'))
+ ('string', 'r:')
+ ('string', 'd:relpath')
+ ('string', 'p:a')
+ ('string', 'p:e')
+ ('string', 'i:a')
+ ('string', 'i:e')
+ ('string', 'x:b')
('string', 'x:e'))))
Test glob expansion of pats
@@ -1668,9 +1660,8 @@ Test --follow on a directory
(func
('symbol', '_matchfiles')
(list
- (list
- ('string', 'r:')
- ('string', 'd:relpath'))
+ ('string', 'r:')
+ ('string', 'd:relpath')
('string', 'p:dir')))))
$ hg up -q tip
@@ -1693,9 +1684,8 @@ Test --follow and patterns
(func
('symbol', '_matchfiles')
(list
- (list
- ('string', 'r:')
- ('string', 'd:relpath'))
+ ('string', 'r:')
+ ('string', 'd:relpath')
('string', 'p:glob:*')))))
Test --follow on a single rename
@@ -1836,9 +1826,8 @@ Test "set:..." and parent revision
(func
('symbol', '_matchfiles')
(list
- (list
- ('string', 'r:')
- ('string', 'd:relpath'))
+ ('string', 'r:')
+ ('string', 'd:relpath')
('string', 'p:set:copied()'))))
$ testlog --include "set:copied()"
[]
@@ -1846,9 +1835,8 @@ Test "set:..." and parent revision
(func
('symbol', '_matchfiles')
(list
- (list
- ('string', 'r:')
- ('string', 'd:relpath'))
+ ('string', 'r:')
+ ('string', 'd:relpath')
('string', 'i:set:copied()'))))
$ testlog -r "sort(file('set:copied()'), -rev)"
["sort(file('set:copied()'), -rev)"]
@@ -1865,9 +1853,8 @@ Test --removed
(func
('symbol', '_matchfiles')
(list
- (list
- ('string', 'r:')
- ('string', 'd:relpath'))
+ ('string', 'r:')
+ ('string', 'd:relpath')
('string', 'p:a'))))
$ testlog --removed --follow a
[]
@@ -1879,9 +1866,8 @@ Test --removed
(func
('symbol', '_matchfiles')
(list
- (list
- ('string', 'r:')
- ('string', 'd:relpath'))
+ ('string', 'r:')
+ ('string', 'd:relpath')
('string', 'p:a')))))
Test --patch and --stat with --follow and --follow-first
@@ -2271,9 +2257,8 @@ Test subdir
(func
('symbol', '_matchfiles')
(list
- (list
- ('string', 'r:')
- ('string', 'd:relpath'))
+ ('string', 'r:')
+ ('string', 'd:relpath')
('string', 'p:.'))))
$ testlog ../b
[]
diff --git a/tests/test-revset.t b/tests/test-revset.t
--- a/tests/test-revset.t
+++ b/tests/test-revset.t
@@ -1168,6 +1168,14 @@ test ',' in `_list`
hg: parse error: can't use a list in this context
(see hg help "revsets.x or y")
[255]
+ $ try '0,1,2'
+ (list
+ ('symbol', '0')
+ ('symbol', '1')
+ ('symbol', '2'))
+ hg: parse error: can't use a list in this context
+ (see hg help "revsets.x or y")
+ [255]
test that chained `or` operations make balanced addsets
@@ -1717,13 +1725,12 @@ test chained `or` operations are flatten
(func
('symbol', 'chainedorops')
(list
- (list
- (range
- ('symbol', '0')
- ('symbol', '1'))
- (range
- ('symbol', '1')
- ('symbol', '2')))
+ (range
+ ('symbol', '0')
+ ('symbol', '1'))
+ (range
+ ('symbol', '1')
+ ('symbol', '2'))
(range
('symbol', '2')
('symbol', '3'))))
@@ -1877,9 +1884,8 @@ far away.
(func
('symbol', 'rs')
(list
- (list
- ('symbol', '2')
- ('symbol', 'data'))
+ ('symbol', '2')
+ ('symbol', 'data')
('symbol', '7')))
hg: parse error: invalid number of arguments: 3
[255]
@@ -1887,13 +1893,11 @@ far away.
(func
('symbol', 'rs4')
(list
- (list
- (list
- (or
- ('symbol', '2')
- ('symbol', '3'))
- ('symbol', 'x'))
- ('symbol', 'x'))
+ (or
+ ('symbol', '2')
+ ('symbol', '3'))
+ ('symbol', 'x')
+ ('symbol', 'x')
('symbol', 'date')))
(func
('symbol', 'reverse')
@@ -2055,11 +2059,9 @@ tests for concatenation of strings/symbo
(func
('symbol', 'cat4')
(list
- (list
- (list
- ('symbol', '278')
- ('string', '5f5'))
- ('symbol', '1ee'))
+ ('symbol', '278')
+ ('string', '5f5')
+ ('symbol', '1ee')
('string', 'ce5')))
(_concat
(_concat
More information about the Mercurial-devel
mailing list