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Diffstat (limited to 'vim/bundle/tlib_vim/autoload/tlib/Object.vim')
-rwxr-xr-x | vim/bundle/tlib_vim/autoload/tlib/Object.vim | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/vim/bundle/tlib_vim/autoload/tlib/Object.vim b/vim/bundle/tlib_vim/autoload/tlib/Object.vim new file mode 100755 index 0000000..21f38b2 --- /dev/null +++ b/vim/bundle/tlib_vim/autoload/tlib/Object.vim @@ -0,0 +1,154 @@ +" @Author: Tom Link (micathom AT gmail com?subject=[vim]) +" @Website: http://www.vim.org/account/profile.php?user_id=4037 +" @License: GPL (see http://www.gnu.org/licenses/gpl.txt) +" @Revision: 127 + +" :filedoc: +" Provides a prototype plus some OO-like methods. + +let s:id_counter = 0 +let s:prototype = {'_class': ['object'], '_super': [], '_id': 0} "{{{2 + +" :def: function! tlib#Object#New(?fields={}) +" This function creates a prototype that provides some kind of +" inheritance mechanism and a way to call parent/super methods. +" +" The usage demonstrated in the following example works best when every +" class/prototype is defined in a file of its own. +" +" The reason for why there is a dedicated constructor function is that +" this layout facilitates the use of templates and that methods are +" hidden from the user. Other solutions are possible. +" +" EXAMPLES: > +" let s:prototype = tlib#Object#New({ +" \ '_class': ['FooBar'], +" \ 'foo': 1, +" \ 'bar': 2, +" \ }) +" " Constructor +" function! FooBar(...) +" let object = s:prototype.New(a:0 >= 1 ? a:1 : {}) +" return object +" endf +" function! s:prototype.babble() { +" echo "I think, therefore I am ". (self.foo * self.bar) ." months old." +" } +" +" < This could now be used like this: > +" let myfoo = FooBar({'foo': 3}) +" call myfoo.babble() +" => I think, therefore I am 6 months old. +" echo myfoo.IsA('FooBar') +" => 1 +" echo myfoo.IsA('object') +" => 1 +" echo myfoo.IsA('Foo') +" => 0 +" echo myfoo.RespondTo('babble') +" => 1 +" echo myfoo.RespondTo('speak') +" => 0 +function! tlib#Object#New(...) "{{{3 + return s:prototype.New(a:0 >= 1 ? a:1 : {}) +endf + + +function! s:prototype.New(...) dict "{{{3 + let object = deepcopy(self) + let s:id_counter += 1 + let object._id = s:id_counter + if a:0 >= 1 && !empty(a:1) + " call object.Extend(deepcopy(a:1)) + call object.Extend(a:1) + endif + return object +endf + + +function! s:prototype.Inherit(object) dict "{{{3 + let class = copy(self._class) + " TLogVAR class + let objid = self._id + for c in get(a:object, '_class', []) + " TLogVAR c + if index(class, c) == -1 + call add(class, c) + endif + endfor + call extend(self, a:object, 'keep') + let self._class = class + " TLogVAR self._class + let self._id = objid + " let self._super = [super] + self._super + call insert(self._super, a:object) + return self +endf + + +function! s:prototype.Extend(dictionary) dict "{{{3 + let super = copy(self) + let class = copy(self._class) + " TLogVAR class + let objid = self._id + let thisclass = get(a:dictionary, '_class', []) + for c in type(thisclass) == 3 ? thisclass : [thisclass] + " TLogVAR c + if index(class, c) == -1 + call add(class, c) + endif + endfor + call extend(self, a:dictionary) + let self._class = class + " TLogVAR self._class + let self._id = objid + " let self._super = [super] + self._super + call insert(self._super, super) + return self +endf + + +function! s:prototype.IsA(class) dict "{{{3 + return index(self._class, a:class) != -1 +endf + + +function! s:prototype.IsRelated(object) dict "{{{3 + return len(filter(a:object._class, 'self.IsA(v:val)')) > 1 +endf + + +function! s:prototype.RespondTo(name) dict "{{{3 + " return has_key(self, a:name) && type(self[a:name]) == 2 + return has_key(self, a:name) +endf + + +function! s:prototype.Super(method, arglist) dict "{{{3 + for o in self._super + " TLogVAR o + if o.RespondTo(a:method) + " let self._tmp_method = o[a:method] + " TLogVAR self._tmp_method + " return call(self._tmp_method, a:arglist, self) + return call(o[a:method], a:arglist, self) + endif + endfor + echoerr 'tlib#Object: Does not respond to '. a:method .': '. string(self) +endf + + +function! tlib#Object#Methods(object, ...) "{{{3 + TVarArg ['pattern', '\d\+'] + let o = items(a:object) + call filter(o, 'type(v:val[1]) == 2 && string(v:val[1]) =~ "^function(''\\d\\+'')"') + let acc = {} + for e in o + let id = matchstr(string(e[1]), pattern) + if !empty(id) + let acc[id] = e[0] + endif + endfor + return acc +endf + |