Initial commit.

vim/autoload/railmoon/oscan/extractor/definition_declaration.vim

@@ -0,0 +1,121 @@
+" Author: Mykola Golubyev ( Nickolay Golubev )
+" Email: golubev.nikolay@gmail.com
+" Site: www.railmoon.com
+" Plugin: oscan
+" Module: extractor#definition_declaration
+" Purpose: extract ctags record from buffer
+
+function! railmoon#oscan#extractor#definition_declaration#create()
+    let new_extractor = copy(s:tag_scan_definition_declaration_extractor)
+
+    let new_extractor.file_name = expand("%:p")
+    let new_extractor.buffer_number = bufnr('%')
+    let new_extractor.file_extension = expand("%:e")
+    let new_extractor.filetype = &filetype
+    let new_extractor.description = 'Go to possible definition/declaration for current function'
+
+    return new_extractor
+endfunction
+
+
+let s:tag_scan_definition_declaration_extractor = {}
+function! s:tag_scan_definition_declaration_extractor.process(record)
+    call railmoon#oscan#extractor#ctags#process(a:record.data)
+endfunction
+
+function! s:get_nearest_ctags_tag()
+    let filename = @%
+    let linenumber = line('.')
+
+    let self.language = railmoon#oscan#extractor#ctags#language_by_current_buffer()
+
+    let ctags_tags = railmoon#ctags_util#taglist_for_file(filename, language, railmoon#oscan#extractor#ctags#kind_types_for_langauge(language), 'sikaS')
+
+    let i = len(ctags_tags) - 1
+    while i >= 0
+        let tag_item = ctags_tags[i]
+
+        if linenumber >= tag_item.cmd
+            return tag_item
+        endif
+        let i -= 1
+    endwhile
+
+    return {}
+endfunction
+
+function! s:is_equal_tag_attribute(tag_left, tag_right, attribute)
+    let left_has_attribute = has_key(a:tag_left, a:attribute)
+    let right_has_attribute = has_key(a:tag_right, a:attribute)
+
+    if left_has_attribute && right_has_attribute
+        return a:tag_left[a:attribute] == a:tag_right[a:attribute]
+    endif
+
+    if ! left_has_attribute && ! right_has_attribute
+        return 1
+    endif
+
+    return 0
+endfunction
+
+function! s:return_definitions(ctags_tag)
+    let result = []
+    let similar_tags = taglist('\<'.a:ctags_tag.name.'\>')
+
+    for tag_item in similar_tags 
+        if tag_item.kind == 'p'
+            continue
+        endif
+
+        if s:is_equal_tag_attribute(a:ctags_tag, tag_item, 'class') &&
+                    \ s:is_equal_tag_attribute(a:ctags_tag, tag_item, 'namespace')
+
+            call add(result, tag_item)
+        endif
+    endfor
+
+    return result
+endfunction
+
+function! s:return_declarations(ctags_tag)
+    let result = []
+    let similar_tags = taglist('\<'.a:ctags_tag.name.'\>')
+
+    for tag_item in similar_tags 
+        if tag_item.kind != 'p'
+            continue
+        endif
+
+        if s:is_equal_tag_attribute(a:ctags_tag, tag_item, 'class') &&
+                    \ s:is_equal_tag_attribute(a:ctags_tag, tag_item, 'namespace')
+
+            call add(result, tag_item)
+        endif
+    endfor
+
+    return result
+endfunction
+
+function! s:tag_scan_definition_declaration_extractor.extract()
+    let result = []
+
+    let extension = self.file_extension
+    let language = railmoon#oscan#extractor#ctags#language_by_extension(extension)
+    let self.language = language
+
+    let nearest_tag = s:get_nearest_ctags_tag()
+    let ctags_tags = nearest_tag.kind =~ 'p' ? s:return_definitions(nearest_tag) : s:return_declarations(nearest_tag)
+
+    for item in ctags_tags
+        let record = railmoon#oscan#extractor#ctags#record_for_language_tag(language, item)
+        call add(result, record)
+    endfor
+
+    return result
+endfunction
+
+function! s:tag_scan_definition_declaration_extractor.colorize()
+    let &filetype = self.filetype
+    call railmoon#oscan#extractor#ctags#colorize_keywords(self.language)
+endfunction