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+" Description: Omni completion script for cpp files
+" Maintainer: Vissale NEANG
+" Last Change: 26 sept. 2007
+
+let g:omni#cpp#namespaces#CacheResolve = {}
+let g:omni#cpp#namespaces#CacheUsing = {}
+" TODO: For the next release
+"let g:omni#cpp#namespaces#CacheAlias = {}
+
+" Get the using namespace list from a line
+function! s:GetNamespaceAliasListFromLine(szLine)
+ let result = {}
+ let tokens = omni#cpp#tokenizer#Tokenize(a:szLine)
+ let szAlias = ''
+ let szNamespace = ''
+ let state = 0
+ for token in tokens
+ if state==0
+ let szAlias = ''
+ let szNamespace = ''
+ if token.value == '/*'
+ let state = 1
+ elseif token.value == '//'
+ " It's a comment
+ let state = -1
+ break
+ elseif token.value == 'namespace'
+ let state = 2
+ endif
+ elseif state==1
+ if token.value == '*/'
+ let state=0
+ endif
+ elseif state==2
+ if token.kind == 'cppWord'
+ let szAlias .= token.value
+ let state = 3
+ else
+ let state = -1
+ break
+ endif
+ elseif state == 3
+ if token.value == '='
+ let state = 4
+ else
+ let state = -1
+ break
+ endif
+ elseif state == 4
+ if token.value == '::'
+ let szNamespace .= token.value
+ let state = 5
+ elseif token.kind == 'cppWord'
+ let szNamespace .= token.value
+ let state = 6
+ " Maybe end of tokens
+ endif
+ elseif state==5
+ if token.kind == 'cppWord'
+ let szNamespace .= token.value
+ let state = 6
+ " Maybe end of tokens
+ else
+ " Error, we can't have 'namespace ALIAS = Something::'
+ let state = -1
+ break
+ endif
+ elseif state==6
+ if token.value == '::'
+ let szNamespace .= token.value
+ let state = 5
+ else
+ call extend(result, {szAlias : szNamespace})
+ let state = 0
+ endif
+ endif
+ endfor
+
+ if state == 6
+ call extend(result, {szAlias : szNamespace})
+ endif
+
+ return result
+endfunc
+
+" Get the using namespace list from a line
+function! s:GetNamespaceListFromLine(szLine)
+ let result = []
+ let tokens = omni#cpp#tokenizer#Tokenize(a:szLine)
+ let szNamespace = ''
+ let state = 0
+ for token in tokens
+ if state==0
+ let szNamespace = ''
+ if token.value == '/*'
+ let state = 1
+ elseif token.value == '//'
+ " It's a comment
+ let state = -1
+ break
+ elseif token.value == 'using'
+ let state = 2
+ endif
+ elseif state==1
+ if token.value == '*/'
+ let state=0
+ endif
+ elseif state==2
+ if token.value == 'namespace'
+ let state = 3
+ else
+ " Error, 'using' must be followed by 'namespace'
+ let state = -1
+ break
+ endif
+ elseif state==3
+ if token.value == '::'
+ let szNamespace .= token.value
+ let state = 4
+ elseif token.kind == 'cppWord'
+ let szNamespace .= token.value
+ let state = 5
+ " Maybe end of tokens
+ endif
+ elseif state==4
+ if token.kind == 'cppWord'
+ let szNamespace .= token.value
+ let state = 5
+ " Maybe end of tokens
+ else
+ " Error, we can't have 'using namespace Something::'
+ let state = -1
+ break
+ endif
+ elseif state==5
+ if token.value == '::'
+ let szNamespace .= token.value
+ let state = 4
+ else
+ call extend(result, [szNamespace])
+ let state = 0
+ endif
+ endif
+ endfor
+
+ if state == 5
+ call extend(result, [szNamespace])
+ endif
+
+ return result
+endfunc
+
+" Get the namespace list from a namespace map
+function! s:GetUsingNamespaceListFromMap(namespaceMap, ...)
+ let stopLine = 0
+ if a:0>0
+ let stopLine = a:1
+ endif
+
+ let result = []
+ let keys = sort(keys(a:namespaceMap), 'omni#common#utils#CompareNumber')
+ for i in keys
+ if stopLine != 0 && i > stopLine
+ break
+ endif
+ call extend(result, a:namespaceMap[i])
+ endfor
+ return result
+endfunc
+
+" Get global using namespace list from the current buffer
+function! omni#cpp#namespaces#GetListFromCurrentBuffer(...)
+ let namespaceMap = s:GetAllUsingNamespaceMapFromCurrentBuffer()
+ let result = []
+ if namespaceMap != {}
+ let result = s:GetUsingNamespaceListFromMap(namespaceMap, (a:0 > 0)? a:1 : line('.'))
+ endif
+ return result
+endfunc
+
+" Get global using namespace map from the current buffer and include files recursively
+function! s:GetAllUsingNamespaceMapFromCurrentBuffer(...)
+ let includeGuard = (a:0>0)? a:1 : {}
+
+ let szBufferName = getreg("%")
+ let szFilePath = omni#cpp#utils#ResolveFilePath(szBufferName)
+ let szFilePath = (szFilePath=='')? szBufferName : szFilePath
+
+ let namespaceMap = {}
+ if has_key(includeGuard, szFilePath)
+ return namespaceMap
+ else
+ let includeGuard[szFilePath] = 1
+ endif
+
+ let namespaceMap = omni#cpp#namespaces#GetMapFromCurrentBuffer()
+
+ if g:OmniCpp_NamespaceSearch != 2
+ " We don't search included files if OmniCpp_NamespaceSearch != 2
+ return namespaceMap
+ endif
+
+ for inc in omni#cpp#includes#GetList()
+ let lnum = inc.pos[0]
+ let tmpMap = s:GetAllUsingNamespaceMapFromFile(inc.include, includeGuard)
+ if tmpMap != {}
+ if has_key(namespaceMap, lnum)
+ call extend(namespaceMap[lnum], s:GetUsingNamespaceListFromMap(tmpMap))
+ else
+ let namespaceMap[lnum] = s:GetUsingNamespaceListFromMap(tmpMap)
+ endif
+ endif
+ endfor
+
+ return namespaceMap
+endfunc
+
+" Get global using namespace map from a file and include files recursively
+function! s:GetAllUsingNamespaceMapFromFile(szFilePath, ...)
+ let includeGuard = {}
+ if a:0 >0
+ let includeGuard = a:1
+ endif
+
+ let szFilePath = omni#cpp#utils#ResolveFilePath(a:szFilePath)
+ let szFilePath = (szFilePath=='')? a:szFilePath : szFilePath
+
+ let namespaceMap = {}
+ if has_key(includeGuard, szFilePath)
+ return namespaceMap
+ else
+ let includeGuard[szFilePath] = 1
+ endif
+
+ " If g:OmniCpp_NamespaceSearch == 1 (search namespaces only in the current
+ " buffer) we don't use cache for the current buffer
+ let namespaceMap = omni#cpp#namespaces#GetMapFromBuffer(szFilePath, g:OmniCpp_NamespaceSearch==1)
+
+ if g:OmniCpp_NamespaceSearch != 2
+ " We don't search included files if OmniCpp_NamespaceSearch != 2
+ return namespaceMap
+ endif
+
+ for inc in omni#cpp#includes#GetList(szFilePath)
+ let lnum = inc.pos[0]
+ let tmpMap = s:GetAllUsingNamespaceMapFromFile(inc.include, includeGuard)
+ if tmpMap != {}
+ if has_key(namespaceMap, lnum)
+ call extend(namespaceMap[lnum], s:GetUsingNamespaceListFromMap(tmpMap))
+ else
+ let namespaceMap[lnum] = s:GetUsingNamespaceListFromMap(tmpMap)
+ endif
+ endif
+ endfor
+
+ return namespaceMap
+endfunc
+
+" Get global using namespace map from a the current buffer
+function! omni#cpp#namespaces#GetMapFromCurrentBuffer()
+ let namespaceMap = {}
+ let originalPos = getpos('.')
+
+ call setpos('.', [0, 1, 1, 0])
+ let curPos = [1,1]
+ while curPos != [0,0]
+ let curPos = searchpos('\C^using\s\+namespace', 'W')
+ if curPos != [0,0]
+ let szLine = getline('.')
+ let startPos = curPos[1]
+ let endPos = match(szLine, ';', startPos-1)
+ if endPos!=-1
+ " We get the namespace list from the line
+ let namespaceMap[curPos[0]] = s:GetNamespaceListFromLine(szLine)
+ endif
+ endif
+ endwhile
+
+ call setpos('.', originalPos)
+ return namespaceMap
+endfunc
+
+" Get global using namespace map from a file
+function! omni#cpp#namespaces#GetMapFromBuffer(szFilePath, ...)
+ let bUpdate = 0
+ if a:0 > 0
+ let bUpdate = a:1
+ endif
+
+ let szFilePath = omni#cpp#utils#ResolveFilePath(a:szFilePath)
+ let szFilePath = (szFilePath=='')? a:szFilePath : szFilePath
+
+ if !bUpdate && has_key(g:omni#cpp#namespaces#CacheUsing, szFilePath)
+ return copy(g:omni#cpp#namespaces#CacheUsing[szFilePath])
+ endif
+
+ let namespaceMap = {}
+ " The file exists, we get the global namespaces in this file
+ let szFixedPath = escape(szFilePath, g:omni#cpp#utils#szEscapedCharacters)
+ execute 'silent! lvimgrep /\C^using\s\+namespace/gj '.szFixedPath
+
+ " key = line number
+ " value = list of namespaces
+ let listQuickFix = getloclist(0)
+ for qf in listQuickFix
+ let szLine = qf.text
+ let startPos = qf.col
+ let endPos = match(szLine, ';', startPos-1)
+ if endPos!=-1
+ " We get the namespace list from the line
+ let namespaceMap[qf.lnum] = s:GetNamespaceListFromLine(szLine)
+ endif
+ endfor
+
+ if szFixedPath != ''
+ let g:omni#cpp#namespaces#CacheUsing[szFixedPath] = namespaceMap
+ endif
+
+ return copy(namespaceMap)
+endfunc
+
+" Get the stop position when searching for local variables
+function! s:GetStopPositionForLocalSearch()
+ " Stop position when searching a local variable
+ let originalPos = getpos('.')
+ let origPos = originalPos[1:2]
+ let stopPosition = origPos
+ let curPos = origPos
+ while curPos !=[0,0]
+ let stopPosition = curPos
+ let curPos = searchpairpos('{', '', '}', 'bW', g:omni#cpp#utils#expIgnoreComments)
+ endwhile
+ call setpos('.', originalPos)
+
+ return stopPosition
+endfunc
+
+" Get namespaces alias used at the cursor postion in a vim buffer
+" Note: The result depends on the current cursor position
+" @return
+" - Map of namespace alias
+function! s:GetNamespaceAliasMap()
+ " We store the cursor position because searchpairpos() moves the cursor
+ let result = {}
+ let originalPos = getpos('.')
+ let origPos = originalPos[1:2]
+
+ let stopPos = s:GetStopPositionForLocalSearch()
+ let stopLine = stopPos[0]
+ let curPos = origPos
+ let lastLine = 0
+ let nextStopLine = origPos[0]
+ let szReAlias = '\Cnamespace\s\+\w\+\s\+='
+ while curPos !=[0,0]
+ let curPos = searchpos('}\|\('. szReAlias .'\)', 'bW',stopLine)
+ if curPos!=[0,0] && curPos[0]!=lastLine
+ let lastLine = curPos[0]
+
+ let szLine = getline('.')
+ if origPos[0] == curPos[0]
+ " We get the line until cursor position
+ let szLine = szLine[:origPos[1]]
+ endif
+
+ let szLine = omni#cpp#utils#GetCodeFromLine(szLine)
+ if match(szLine, szReAlias)<0
+ " We found a '}'
+ let curPos = searchpairpos('{', '', '}', 'bW', g:omni#cpp#utils#expIgnoreComments)
+ else
+ " We get the namespace alias from the line
+ call extend(result, s:GetNamespaceAliasListFromLine(szLine))
+ let nextStopLine = curPos[0]
+ endif
+ endif
+ endwhile
+
+ " Setting the cursor to the original position
+ call setpos('.', originalPos)
+
+ call s:ResolveAliasKeys(result)
+ return result
+endfunc
+
+" Resolve an alias
+" eg: namespace IAmAnAlias1 = Ns1
+" eg: namespace IAmAnAlias2 = IAmAnAlias1::Ns2
+" => IAmAnAlias2 = Ns1::Ns2
+function! s:ResolveAliasKey(mapNamespaceAlias, szAlias)
+ let szResult = a:mapNamespaceAlias[a:szAlias]
+ " ::Ns1::Ns2::Ns3 => ['Ns1', 'Ns2', 'Ns3']
+ let listNamespace = split(szResult, '::')
+ if len(listNamespace)
+ " szBeginPart = 'Ns1'
+ let szBeginPart = remove(listNamespace, 0)
+
+ " Is 'Ns1' an alias ?
+ if has_key(a:mapNamespaceAlias, szBeginPart) && szBeginPart != a:szAlias
+ " Resolving alias 'Ns1'
+ " eg: Ns1 = NsResolved
+ let szResult = s:ResolveAliasKey(a:mapNamespaceAlias, szBeginPart)
+ " szEndPart = 'Ns2::Ns3'
+ let szEndPart = join(listNamespace, '::')
+ if szEndPart != ''
+ " Concatenation => szResult = 'NsResolved::Ns2::Ns3'
+ let szResult .= '::' . szEndPart
+ endif
+ endif
+ endif
+ return szResult
+endfunc
+
+" Resolve all keys in the namespace alias map
+function! s:ResolveAliasKeys(mapNamespaceAlias)
+ let mapNamespaceAlias = a:mapNamespaceAlias
+ call map(mapNamespaceAlias, 's:ResolveAliasKey(mapNamespaceAlias, v:key)')
+endfunc
+
+" Resolve namespace alias
+function! omni#cpp#namespaces#ResolveAlias(mapNamespaceAlias, szNamespace)
+ let szResult = a:szNamespace
+ " ::Ns1::Ns2::Ns3 => ['Ns1', 'Ns2', 'Ns3']
+ let listNamespace = split(a:szNamespace, '::')
+ if len(listNamespace)
+ " szBeginPart = 'Ns1'
+ let szBeginPart = remove(listNamespace, 0)
+
+ " Is 'Ns1' an alias ?
+ if has_key(a:mapNamespaceAlias, szBeginPart)
+ " Resolving alias 'Ns1'
+ " eg: Ns1 = NsResolved
+ let szResult = a:mapNamespaceAlias[szBeginPart]
+ " szEndPart = 'Ns2::Ns3'
+ let szEndPart = join(listNamespace, '::')
+ if szEndPart != ''
+ " Concatenation => szResult = 'NsResolved::Ns2::Ns3'
+ let szResult .= '::' . szEndPart
+ endif
+
+ " If a:szNamespace starts with '::' we add '::' to the beginning
+ " of the result
+ if match(a:szNamespace, '^::')>=0
+ let szResult = omni#cpp#utils#SimplifyScope('::' . szResult)
+ endif
+ endif
+ endif
+ return szResult
+endfunc
+
+" Resolve namespace alias
+function! s:ResolveAliasInNamespaceList(mapNamespaceAlias, listNamespaces)
+ call map(a:listNamespaces, 'omni#cpp#namespaces#ResolveAlias(a:mapNamespaceAlias, v:val)')
+endfunc
+
+" Get namespaces used at the cursor postion in a vim buffer
+" Note: The result depends on the current cursor position
+" @return
+" - List of namespace used in the reverse order
+function! omni#cpp#namespaces#GetUsingNamespaces()
+ " We have to get local using namespace declarations
+ " We need the current cursor position and the position of the start of the
+ " current scope
+
+ " We store the cursor position because searchpairpos() moves the cursor
+ let result = []
+ let originalPos = getpos('.')
+ let origPos = originalPos[1:2]
+
+ let stopPos = s:GetStopPositionForLocalSearch()
+
+ let stopLine = stopPos[0]
+ let curPos = origPos
+ let lastLine = 0
+ let nextStopLine = origPos[0]
+ while curPos !=[0,0]
+ let curPos = searchpos('\C}\|\(using\s\+namespace\)', 'bW',stopLine)
+ if curPos!=[0,0] && curPos[0]!=lastLine
+ let lastLine = curPos[0]
+
+ let szLine = getline('.')
+ if origPos[0] == curPos[0]
+ " We get the line until cursor position
+ let szLine = szLine[:origPos[1]]
+ endif
+
+ let szLine = omni#cpp#utils#GetCodeFromLine(szLine)
+ if match(szLine, '\Cusing\s\+namespace')<0
+ " We found a '}'
+ let curPos = searchpairpos('{', '', '}', 'bW', g:omni#cpp#utils#expIgnoreComments)
+ else
+ " We get the namespace list from the line
+ let result = s:GetNamespaceListFromLine(szLine) + result
+ let nextStopLine = curPos[0]
+ endif
+ endif
+ endwhile
+
+ " Setting the cursor to the original position
+ call setpos('.', originalPos)
+
+ " 2) Now we can get all global using namespace declaration from the
+ " beginning of the file to nextStopLine
+ let result = omni#cpp#namespaces#GetListFromCurrentBuffer(nextStopLine) + result
+
+ " Resolving alias in the namespace list
+ " TODO: For the next release
+ "let g:omni#cpp#namespaces#CacheAlias= s:GetNamespaceAliasMap()
+ "call s:ResolveAliasInNamespaceList(g:omni#cpp#namespaces#CacheAlias, result)
+
+ return ['::'] + result
+endfunc
+
+" Resolve a using namespace regarding the current context
+" For each namespace used:
+" - We get all possible contexts where the namespace
+" can be define
+" - We do a comparison test of each parent contexts with the current
+" context list
+" - If one and only one parent context is present in the
+" current context list we add the namespace in the current
+" context
+" - If there is more than one of parent contexts in the
+" current context the namespace is ambiguous
+" @return
+" - result item
+" - kind = 0|1
+" - 0 = unresolved or error
+" - 1 = resolved
+" - value = resolved namespace
+function! s:ResolveNamespace(namespace, mapCurrentContexts)
+ let result = {'kind':0, 'value': ''}
+
+ " If the namespace is already resolved we add it in the list of
+ " current contexts
+ if match(a:namespace, '^::')>=0
+ let result.kind = 1
+ let result.value = a:namespace
+ return result
+ elseif match(a:namespace, '\w\+::\w\+')>=0
+ let mapCurrentContextsTmp = copy(a:mapCurrentContexts)
+ let resolvedItem = {}
+ for nsTmp in split(a:namespace, '::')
+ let resolvedItem = s:ResolveNamespace(nsTmp, mapCurrentContextsTmp)
+ if resolvedItem.kind
+ " Note: We don't extend the map
+ let mapCurrentContextsTmp = {resolvedItem.value : 1}
+ else
+ break
+ endif
+ endfor
+ if resolvedItem!={} && resolvedItem.kind
+ let result.kind = 1
+ let result.value = resolvedItem.value
+ endif
+ return result
+ endif
+
+ " We get all possible parent contexts of this namespace
+ let listTagsOfNamespace = []
+ if has_key(g:omni#cpp#namespaces#CacheResolve, a:namespace)
+ let listTagsOfNamespace = g:omni#cpp#namespaces#CacheResolve[a:namespace]
+ else
+ let listTagsOfNamespace = omni#common#utils#TagList('^'.a:namespace.'$')
+ let g:omni#cpp#namespaces#CacheResolve[a:namespace] = listTagsOfNamespace
+ endif
+
+ if len(listTagsOfNamespace)==0
+ return result
+ endif
+ call filter(listTagsOfNamespace, 'v:val.kind[0]=="n"')
+
+ " We extract parent context from tags
+ " We use a map to avoid multiple entries
+ let mapContext = {}
+ for tagItem in listTagsOfNamespace
+ let szParentContext = omni#cpp#utils#ExtractScope(tagItem)
+ let mapContext[szParentContext] = 1
+ endfor
+ let listParentContext = keys(mapContext)
+
+ " Now for each parent context we test if the context is in the current
+ " contexts list
+ let listResolvedNamespace = []
+ for szParentContext in listParentContext
+ if has_key(a:mapCurrentContexts, szParentContext)
+ call extend(listResolvedNamespace, [omni#cpp#utils#SimplifyScope(szParentContext.'::'.a:namespace)])
+ endif
+ endfor
+
+ " Now we know if the namespace is ambiguous or not
+ let len = len(listResolvedNamespace)
+ if len==1
+ " Namespace resolved
+ let result.kind = 1
+ let result.value = listResolvedNamespace[0]
+ elseif len > 1
+ " Ambiguous namespace, possible matches are in listResolvedNamespace
+ else
+ " Other cases
+ endif
+ return result
+endfunc
+
+" Resolve namespaces
+"@return
+" - List of resolved namespaces
+function! omni#cpp#namespaces#ResolveAll(namespacesUsed)
+
+ " We add the default context '::'
+ let contextOrder = 0
+ let mapCurrentContexts = {}
+
+ " For each namespace used:
+ " - We get all possible contexts where the namespace
+ " can be define
+ " - We do a comparison test of each parent contexts with the current
+ " context list
+ " - If one and only one parent context is present in the
+ " current context list we add the namespace in the current
+ " context
+ " - If there is more than one of parent contexts in the
+ " current context the namespace is ambiguous
+ for ns in a:namespacesUsed
+ let resolvedItem = s:ResolveNamespace(ns, mapCurrentContexts)
+ if resolvedItem.kind
+ let contextOrder+=1
+ let mapCurrentContexts[resolvedItem.value] = contextOrder
+ endif
+ endfor
+
+ " Build the list of current contexts from the map, we have to keep the
+ " order
+ let mapReorder = {}
+ for key in keys(mapCurrentContexts)
+ let mapReorder[ mapCurrentContexts[key] ] = key
+ endfor
+ let result = []
+ for key in sort(keys(mapReorder))
+ call extend(result, [mapReorder[key]])
+ endfor
+ return result
+endfunc
+
+" Build the context stack
+function! s:BuildContextStack(namespaces, szCurrentScope)
+ let result = copy(a:namespaces)
+ if a:szCurrentScope != '::'
+ let tagItem = omni#cpp#utils#GetResolvedTagItem(a:namespaces, omni#cpp#utils#CreateTypeInfo(a:szCurrentScope))
+ if has_key(tagItem, 'inherits')
+ let listBaseClass = omni#cpp#utils#GetClassInheritanceList(a:namespaces, omni#cpp#utils#CreateTypeInfo(a:szCurrentScope))
+ let result = listBaseClass + result
+ elseif has_key(tagItem, 'kind') && index(['c', 's', 'u', 'n'], tagItem.kind[0])>=0
+ call insert(result, omni#cpp#utils#ExtractTypeInfoFromTag(tagItem))
+ endif
+ endif
+ return result
+endfunc
+
+" Returns the class scope at the current position of the cursor
+" @return a string that represents the class scope
+" eg: ::NameSpace1::Class1
+" The returned string always starts with '::'
+" Note: In term of performance it's the weak point of the script
+function! s:GetClassScopeAtCursor()
+ " We store the cursor position because searchpairpos() moves the cursor
+ let originalPos = getpos('.')
+ let endPos = originalPos[1:2]
+ let listCode = []
+ let result = {'namespaces': [], 'scope': ''}
+
+ while endPos!=[0,0]
+ let endPos = searchpairpos('{', '', '}', 'bW', g:omni#cpp#utils#expIgnoreComments)
+ let szReStartPos = '[;{}]\|\%^'
+ let startPos = searchpairpos(szReStartPos, '', '{', 'bWn', g:omni#cpp#utils#expIgnoreComments)
+
+ " If the file starts with a comment so the startPos can be [0,0]
+ " we change it to [1,1]
+ if startPos==[0,0]
+ let startPos = [1,1]
+ endif
+
+ " Get lines backward from cursor position to last ; or { or }
+ " or when we are at the beginning of the file.
+ " We store lines in listCode
+ if endPos!=[0,0]
+ " We remove the last character which is a '{'
+ " We also remove starting { or } or ; if exits
+ let szCodeWithoutComments = substitute(omni#cpp#utils#GetCode(startPos, endPos)[:-2], '^[;{}]', '', 'g')
+ call insert(listCode, {'startLine' : startPos[0], 'code' : szCodeWithoutComments})
+ endif
+ endwhile
+ " Setting the cursor to the original position
+ call setpos('.', originalPos)
+
+ let listClassScope = []
+ let bResolved = 0
+ let startLine = 0
+ " Now we can check in the list of code if there is a function
+ for code in listCode
+ " We get the name of the namespace, class, struct or union
+ " and we store it in listClassScope
+ let tokens = omni#cpp#tokenizer#Tokenize(code.code)
+ let bContinue=0
+ let bAddNamespace = 0
+ let state=0
+ for token in tokens
+ if state==0
+ if index(['namespace', 'class', 'struct', 'union'], token.value)>=0
+ if token.value == 'namespace'
+ let bAddNamespace = 1
+ endif
+ let state= 1
+ " Maybe end of tokens
+ endif
+ elseif state==1
+ if token.kind == 'cppWord'
+ " eg: namespace MyNs { class MyCl {}; }
+ " => listClassScope = [MyNs, MyCl]
+ call extend( listClassScope , [token.value] )
+
+ " Add the namespace in result
+ if bAddNamespace
+ call extend(result.namespaces, [token.value])
+ let bAddNamespace = 0
+ endif
+
+ let bContinue=1
+ break
+ endif
+ endif
+ endfor
+ if bContinue==1
+ continue
+ endif
+
+ " Simple test to check if we have a chance to find a
+ " class method
+ let aPos = matchend(code.code, '::\s*\~*\s*\w\+\s*(')
+ if aPos ==-1
+ continue
+ endif
+
+ let startLine = code.startLine
+ let listTmp = []
+ " eg: 'void MyNamespace::MyClass::foo('
+ " => tokens = ['MyClass', '::', 'MyNamespace', 'void']
+ let tokens = reverse(omni#cpp#tokenizer#Tokenize(code.code[:aPos-1])[:-4])
+ let state = 0
+ " Reading tokens backward
+ for token in tokens
+ if state==0
+ if token.kind=='cppWord'
+ call insert(listTmp, token.value)
+ let state=1
+ endif
+ elseif state==1
+ if token.value=='::'
+ let state=2
+ else
+ break
+ endif
+ elseif state==2
+ if token.kind=='cppWord'
+ call insert(listTmp, token.value)
+ let state=1
+ else
+ break
+ endif
+ endif
+ endfor
+
+ if len(listTmp)
+ if len(listClassScope)
+ let bResolved = 1
+ " Merging class scopes
+ " eg: current class scope = 'MyNs::MyCl1'
+ " method class scope = 'MyCl1::MyCl2'
+ " If we add the method class scope to current class scope
+ " we'll have MyNs::MyCl1::MyCl1::MyCl2 => it's wrong
+ " we want MyNs::MyCl1::MyCl2
+ let index = 0
+ for methodClassScope in listTmp
+ if methodClassScope==listClassScope[-1]
+ let listTmp = listTmp[index+1:]
+ break
+ else
+ let index+=1
+ endif
+ endfor
+ endif
+ call extend(listClassScope, listTmp)
+ break
+ endif
+ endfor
+
+ let szClassScope = '::'
+ if len(listClassScope)
+ if bResolved
+ let szClassScope .= join(listClassScope, '::')
+ else
+ let szClassScope = join(listClassScope, '::')
+
+ " The class scope is not resolved, we have to check using
+ " namespace declarations and search the class scope in each
+ " namespace
+ if startLine != 0
+ let namespaces = ['::'] + omni#cpp#namespaces#GetListFromCurrentBuffer(startLine)
+ let namespaces = omni#cpp#namespaces#ResolveAll(namespaces)
+ let tagItem = omni#cpp#utils#GetResolvedTagItem(namespaces, omni#cpp#utils#CreateTypeInfo(szClassScope))
+ if tagItem != {}
+ let szClassScope = omni#cpp#utils#ExtractTypeInfoFromTag(tagItem)
+ endif
+ endif
+ endif
+ endif
+
+ let result.scope = szClassScope
+ return result
+endfunc
+
+" Get all contexts at the cursor position
+function! omni#cpp#namespaces#GetContexts()
+ " Get the current class scope at the cursor, the result depends on the current cursor position
+ let scopeItem = s:GetClassScopeAtCursor()
+ let listUsingNamespace = copy(g:OmniCpp_DefaultNamespaces)
+ call extend(listUsingNamespace, scopeItem.namespaces)
+ if g:OmniCpp_NamespaceSearch && &filetype != 'c'
+ " Get namespaces used in the file until the cursor position
+ let listUsingNamespace = omni#cpp#namespaces#GetUsingNamespaces() + listUsingNamespace
+ " Resolving namespaces, removing ambiguous namespaces
+ let namespaces = omni#cpp#namespaces#ResolveAll(listUsingNamespace)
+ else
+ let namespaces = ['::'] + listUsingNamespace
+ endif
+ call reverse(namespaces)
+
+ " Building context stack from namespaces and the current class scope
+ return s:BuildContextStack(namespaces, scopeItem.scope)
+endfunc