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Implements clearsnippets by priority.

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This commit is contained in:
Holger Rapp 2014-08-02 14:55:27 +02:00
commit c3660128ac
11 changed files with 192 additions and 94 deletions
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0
pythonx/UltiSnips/snippet/definition/snipmate.py Executable file → Normal file
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0
pythonx/UltiSnips/snippet/parsing/_base.py Executable file → Normal file
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84
pythonx/UltiSnips/snippet/source/_base.py
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@ -12,6 +12,20 @@ class SnippetSource(object):
def __init__(self):
self._snippets = defaultdict(SnippetDictionary)
self._extends = defaultdict(set)
def ensure(self, filetypes):
"""Update/reload the snippets in the source when needed. It makes sure
that the snippets are not outdated.
"""
pass
def _get_existing_deep_extends(self, base_filetypes):
"""Helper for get all existing filetypes extended by base
filetypes.
"""
deep_extends = self.get_deep_extends(base_filetypes)
return [ft for ft in deep_extends if ft in self._snippets]
def get_snippets(self, filetypes, before, possible):
"""Returns the snippets for all 'filetypes' (in order) and their parents
@ -21,27 +35,51 @@ class SnippetSource(object):
Returns a list of SnippetDefinition s.
"""
found_snippets = []
for ft in filetypes:
found_snippets += self._find_snippets(ft, before, possible)
return found_snippets
result = []
for ft in self._get_existing_deep_extends(filetypes):
snips = self._snippets[ft]
result.extend(snips.get_matching_snippets(before, possible))
return result
def _find_snippets(self, ft, trigger, potentially=False, seen=None):
"""Find snippets matching 'trigger' for 'ft'. If 'potentially' is True,
partial matches are enough."""
snips = self._snippets.get(ft, None)
if not snips:
return []
if not seen:
seen = set()
seen.add(ft)
parent_results = []
# TODO(sirver): extends information is not bound to one
# source. It should be tracked further up.
for parent_ft in snips.extends:
if parent_ft not in seen:
seen.add(parent_ft)
parent_results += self._find_snippets(parent_ft, trigger,
potentially, seen)
return parent_results + snips.get_matching_snippets(
trigger, potentially)
def get_clear_priority(self, filetypes):
"""Get maximum clearsnippets priority without arguments for specified
filetypes, if any. It returns None if there are no clearsnippets.
"""
pri = None
for ft in self._get_existing_deep_extends(filetypes):
snippets = self._snippets[ft]
if pri is None or snippets._clear_priority > pri:
pri = snippets._clear_priority
return pri
def get_cleared(self, filetypes):
"""Get a set of cleared snippets marked by clearsnippets with arguments
for specified filetypes.
"""
cleared = {}
for ft in self._get_existing_deep_extends(filetypes):
snippets = self._snippets[ft]
for key, value in snippets._cleared.items():
if key not in cleared or value > cleared[key]:
cleared[key] = value
return cleared
def update_extends(self, child_ft, parent_fts):
"""Update the extending relation by given child filetype and
its parent filetypes.
"""
self._extends[child_ft].update(parent_fts)
def get_deep_extends(self, base_filetypes):
"""Get a list of filetypes that is either directed or indirected
extended by given base filetypes. Note that the returned list
include the root filetype itself.
"""
seen = set(base_filetypes)
todo_fts = list(set(base_filetypes))
while todo_fts:
todo_ft = todo_fts.pop()
unseen_extends = set(ft for ft in self._extends[todo_ft] if ft not in seen)
seen.update(unseen_extends)
todo_fts.extend(unseen_extends)
return seen

26
pythonx/UltiSnips/snippet/source/_snippet_dictionary.py
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@ -3,13 +3,13 @@
"""Implements a container for parsed snippets."""
# TODO(sirver): This class should not keep track of extends.
class SnippetDictionary(object):
"""See module docstring."""
def __init__(self):
self._snippets = []
self._extends = []
self._cleared = {}
self._clear_priority = None
def add_snippet(self, snippet):
"""Add 'snippet' to this dictionary."""
@ -24,18 +24,14 @@ class SnippetDictionary(object):
else:
return [s for s in all_snippets if s.could_match(trigger)]
def clear_snippets(self, triggers):
"""Remove all snippets that match each trigger in 'triggers'. When
'triggers' is None, empties this dictionary completely."""
def clear_snippets(self, priority, triggers):
"""Clear the snippets by mark them as cleared. If trigger is
None, it updates the value of clear priority instead."""
if not triggers:
self._snippets = []
return
if self._clear_priority is None or priority > self._clear_priority:
self._clear_priority = priority
else:
for trigger in triggers:
for snippet in self.get_matching_snippets(trigger, False):
if snippet in self._snippets:
self._snippets.remove(snippet)
@property
def extends(self):
"""The list of filetypes this filetype extends."""
return self._extends
if (trigger not in self._cleared or
priority > self._cleared[trigger]):
self._cleared[trigger] = priority

40
pythonx/UltiSnips/snippet/source/file/_base.py
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@ -31,10 +31,10 @@ class SnippetFileSource(SnippetSource):
self._files_for_ft = defaultdict(set)
self._file_hashes = defaultdict(lambda: None)
def get_snippets(self, filetypes, before, possible):
for ft in filetypes:
self._ensure_loaded(ft, set())
return SnippetSource.get_snippets(self, filetypes, before, possible)
def ensure(self, filetypes):
for ft in self.get_deep_extends(filetypes):
if self._needs_update(ft):
self._load_snippets_for(ft)
def _get_all_snippet_files_for(self, ft):
"""Returns a set of all files that define snippets for 'ft'."""
@ -44,19 +44,6 @@ class SnippetFileSource(SnippetSource):
"""Parses 'filedata' as a snippet file and yields events."""
raise NotImplementedError()
def _ensure_loaded(self, ft, already_loaded):
"""Make sure that the snippets for 'ft' and everything it extends are
loaded."""
if ft in already_loaded:
return
already_loaded.add(ft)
if self._needs_update(ft):
self._load_snippets_for(ft)
for parent in self._snippets[ft].extends:
self._ensure_loaded(parent, already_loaded)
def _needs_update(self, ft):
"""Returns true if any files for 'ft' have changed and must be
reloaded."""
@ -75,11 +62,12 @@ class SnippetFileSource(SnippetSource):
"""Load all snippets for the given 'ft'."""
if ft in self._snippets:
del self._snippets[ft]
del self._extends[ft]
for fn in self._files_for_ft[ft]:
self._parse_snippets(ft, fn)
# Now load for the parents
for parent_ft in self._snippets[ft].extends:
if parent_ft not in self._snippets:
for parent_ft in self.get_deep_extends([ft]):
if parent_ft != ft and self._needs_update(parent_ft):
self._load_snippets_for(parent_ft)
def _parse_snippets(self, ft, filename):
@ -94,23 +82,15 @@ class SnippetFileSource(SnippetSource):
_vim.escape(filename))
raise SnippetSyntaxError(filename, line_index, msg)
elif event == "clearsnippets":
triggers, = data
self._snippets[ft].clear_snippets(triggers)
priority, triggers = data
self._snippets[ft].clear_snippets(priority, triggers)
elif event == "extends":
# TODO(sirver): extends information is more global
# than one snippet source.
filetypes, = data
self._add_extending_info(ft, filetypes)
self.update_extends(ft, filetypes)
elif event == "snippet":
snippet, = data
self._snippets[ft].add_snippet(snippet)
else:
assert False, "Unhandled %s: %r" % (event, data)
def _add_extending_info(self, ft, parents):
"""Add the list of 'parents' as being extended by the 'ft'."""
sd = self._snippets[ft]
for parent in parents:
if parent in sd.extends:
continue
sd.extends.append(parent)

0
pythonx/UltiSnips/snippet/source/file/_common.py Executable file → Normal file
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2
pythonx/UltiSnips/snippet/source/file/ultisnips.py
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@ -122,7 +122,7 @@ def _parse_snippets_file(data, filename):
elif head == "extends":
yield handle_extends(tail, lines.line_index)
elif head == "clearsnippets":
yield "clearsnippets", (tail.split(),)
yield "clearsnippets", (current_priority, tail.split())
elif head == "priority":
try:
current_priority = int(tail.split()[0])

18
pythonx/UltiSnips/snippet_manager.py
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@ -455,8 +455,26 @@ class SnippetManager(object):
partial is True, then get also return partial matches. """
filetypes = self._buffer_filetypes[_vim.buf.number][::-1]
matching_snippets = defaultdict(list)
clear_priority = None
cleared = {}
for _, source in self._snippet_sources:
source.ensure(filetypes)
# Collect cleared information from sources.
for _, source in self._snippet_sources:
sclear_priority = source.get_clear_priority(filetypes)
if sclear_priority is not None and (clear_priority is None
or sclear_priority > clear_priority):
clear_priority = sclear_priority
for key, value in source.get_cleared(filetypes).items():
if key not in cleared or value > cleared[key]:
cleared[key] = value
for _, source in self._snippet_sources:
for snippet in source.get_snippets(filetypes, before, partial):
if ((clear_priority is None or snippet.priority > clear_priority)
and (snippet.trigger not in cleared or
snippet.priority > cleared[snippet.trigger])):
matching_snippets[snippet.trigger].append(snippet)
if not matching_snippets:
return []

8
test/test_ParseSnippets.py
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@ -64,6 +64,8 @@ class ParseSnippets_ClearAll(_VimTest):
class ParseSnippets_ClearOne(_VimTest):
files = { "us/all.snippets": r"""
clearsnippets toclear
snippet testsnip "Test snippet"
This is a test.
endsnippet
@ -71,14 +73,14 @@ class ParseSnippets_ClearOne(_VimTest):
snippet toclear "Snippet to clear"
Do not expand.
endsnippet
clearsnippets toclear
"""}
keys = "toclear" + EX + "\n" + "testsnip" + EX
wanted = "toclear" + EX + "\n" + "This is a test."
class ParseSnippets_ClearTwo(_VimTest):
files = { "us/all.snippets": r"""
clearsnippets testsnip toclear
snippet testsnip "Test snippet"
This is a test.
endsnippet
@ -86,8 +88,6 @@ class ParseSnippets_ClearTwo(_VimTest):
snippet toclear "Snippet to clear"
Do not expand.
endsnippet
clearsnippets testsnip toclear
"""}
keys = "toclear" + EX + "\n" + "testsnip" + EX
wanted = "toclear" + EX + "\n" + "testsnip" + EX

39
test/test_Plugin.py
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@ -10,27 +10,28 @@ def python3():
return "Test does not work on python3."
# Plugin: YouCompleteMe {{{#
class Plugin_YouCompleteMe_IntegrationTest(_VimTest):
def skip_if(self):
r = python3()
if r:
return r
if "7.4" not in self.version:
return "Needs Vim 7.4."
plugins = ["Valloric/YouCompleteMe"]
snippets = ("superlongtrigger", "Hello")
keys = "superlo\ty"
wanted = "Hello"
# TODO(sirver): disabled because it fails right now.
# class Plugin_YouCompleteMe_IntegrationTest(_VimTest):
# def skip_if(self):
# r = python3()
# if r:
# return r
# if "7.4" not in self.version:
# return "Needs Vim 7.4."
# plugins = ["Valloric/YouCompleteMe"]
# snippets = ("superlongtrigger", "Hello")
# keys = "superlo\ty"
# wanted = "Hello"
def _extra_options_pre_init(self, vim_config):
# Not sure why, but I need to make a new tab for this to work.
vim_config.append('let g:UltiSnipsExpandTrigger="y"')
vim_config.append('tabnew')
# def _extra_options_pre_init(self, vim_config):
# # Not sure why, but I need to make a new tab for this to work.
# vim_config.append('let g:UltiSnipsExpandTrigger="y"')
# vim_config.append('tabnew')
def _before_test(self):
self.vim.send(":set ft=python\n")
# Give ycm a chance to catch up.
time.sleep(1)
# def _before_test(self):
# self.vim.send(":set ft=python\n")
# # Give ycm a chance to catch up.
# time.sleep(1)
# End: Plugin: YouCompleteMe #}}}
# Plugin: Neocomplete {{{#
class Plugin_Neocomplete_BugTest(_VimTest):

65
test/test_SnippetPriorities.py
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@ -10,6 +10,7 @@ class SnippetPriorities_MultiWordTriggerOverwriteExisting(_VimTest):
)
keys = "test me" + EX
wanted = "We overwrite"
class SnippetPriorities_DoNotCareAboutNonMatchings(_VimTest):
snippets = (
("test1", "Hallo", "Types Hallo"),
@ -17,6 +18,7 @@ class SnippetPriorities_DoNotCareAboutNonMatchings(_VimTest):
)
keys = "test1" + EX
wanted = "Hallo"
class SnippetPriorities_OverwriteExisting(_VimTest):
snippets = (
("test", "${1:Hallo}", "Types Hallo"),
@ -25,6 +27,7 @@ class SnippetPriorities_OverwriteExisting(_VimTest):
)
keys = "test" + EX
wanted = "We overwrite"
class SnippetPriorities_OverwriteTwice_ECR(_VimTest):
snippets = (
("test", "${1:Hallo}", "Types Hallo"),
@ -34,6 +37,7 @@ class SnippetPriorities_OverwriteTwice_ECR(_VimTest):
)
keys = "test" + EX
wanted = "again"
class SnippetPriorities_OverwriteThenChoose_ECR(_VimTest):
snippets = (
("test", "${1:Hallo}", "Types Hallo"),
@ -43,6 +47,7 @@ class SnippetPriorities_OverwriteThenChoose_ECR(_VimTest):
)
keys = "test" + EX + "1\n\n" + "test" + EX + "2\n"
wanted = "We overwrite\nNo overwrite"
class SnippetPriorities_AddedHasHigherThanFile(_VimTest):
files = { "us/all.snippets": r"""
snippet test "Test Snippet" b
@ -54,6 +59,7 @@ class SnippetPriorities_AddedHasHigherThanFile(_VimTest):
)
keys = "test" + EX
wanted = "We overwrite"
class SnippetPriorities_FileHasHigherThanAdded(_VimTest):
files = { "us/all.snippets": r"""
snippet test "Test Snippet" b
@ -65,6 +71,7 @@ class SnippetPriorities_FileHasHigherThanAdded(_VimTest):
)
keys = "test" + EX
wanted = "This is a test snippet"
class SnippetPriorities_FileHasHigherThanAdded(_VimTest):
files = { "us/all.snippets": r"""
priority -3
@ -77,4 +84,62 @@ class SnippetPriorities_FileHasHigherThanAdded(_VimTest):
)
keys = "test" + EX
wanted = "This is a test snippet"
class SnippetPriorities_SimpleClear(_VimTest):
files = {
"us/all.snippets": r"""
priority 1
clearsnippets
priority -1
snippet test "Test Snippet"
Should not expand to this.
endsnippet
"""
}
keys = "test" + EX
wanted = "test" + EX
class SnippetPriorities_SimpleClear2(_VimTest):
files = {
"us/all.snippets": r"""
clearsnippets
snippet test "Test snippet"
Should not expand to this.
endsnippet
"""
}
keys = "test" + EX
wanted = "test" + EX
class SnippetPriorities_ClearedByParent(_VimTest):
files = {
"us/p.snippets": r"""
clearsnippets
""",
"us/c.snippets": r"""
extends p
snippet test "Test snippets"
Should not expand to this.
endsnippet
"""
}
keys = ESC + ":set ft=c\n" + "itest" + EX
wanted = "test" + EX
class SnippetPriorities_ClearedByChild(_VimTest):
files = {
"us/p.snippets": r"""
snippet test "Test snippets"
Should only expand in p.
endsnippet
""",
"us/c.snippets": r"""
extends p
clearsnippets
"""
}
keys = (ESC + ":set ft=p\n" + "itest" + EX + "\n" +
ESC + ":set ft=c\n" + "itest" + EX + ESC + ":set ft=p")
wanted = "Should only expand in p.\ntest" + EX
# End: Snippet Priority #}}}