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| -rw-r--r-- | .vim/autoload/omni/cpp/items.vim | 660 |
1 files changed, 660 insertions, 0 deletions
diff --git a/.vim/autoload/omni/cpp/items.vim b/.vim/autoload/omni/cpp/items.vim new file mode 100644 index 0000000..b943ad4 --- /dev/null +++ b/.vim/autoload/omni/cpp/items.vim @@ -0,0 +1,660 @@ +" Description: Omni completion script for cpp files +" Maintainer: Vissale NEANG +" Last Change: 26 sept. 2007 + +" Build the item list of an instruction +" An item is an instruction between a -> or . or ->* or .* +" We can sort an item in different kinds: +" eg: ((MyClass1*)(pObject))->_memberOfClass1.get() ->show() +" | cast | | member | | method | | method | +" @return a list of item +" an item is a dictionnary where keys are: +" tokens = list of token +" kind = itemVariable|itemCast|itemCppCast|itemTemplate|itemFunction|itemUnknown|itemThis|itemScope +function! omni#cpp#items#Get(tokens, ...) + let bGetWordUnderCursor = (a:0>0)? a:1 : 0 + + let result = [] + let itemsDelimiters = ['->', '.', '->*', '.*'] + + let tokens = reverse(omni#cpp#utils#BuildParenthesisGroups(a:tokens)) + + " fsm states: + " 0 = initial state + " TODO: add description of fsm states + let state=(bGetWordUnderCursor)? 1 : 0 + let item = {'tokens' : [], 'kind' : 'itemUnknown'} + let parenGroup=-1 + for token in tokens + if state==0 + if index(itemsDelimiters, token.value)>=0 + let item = {'tokens' : [], 'kind' : 'itemUnknown'} + let state = 1 + elseif token.value=='::' + let state = 9 + let item.kind = 'itemScope' + " Maybe end of tokens + elseif token.kind =='cppOperatorPunctuator' + " If it's a cppOperatorPunctuator and the current token is not + " a itemsDelimiters or '::' we can exit + let state=-1 + break + endif + elseif state==1 + call insert(item.tokens, token) + if token.kind=='cppWord' + " It's an attribute member or a variable + let item.kind = 'itemVariable' + let state = 2 + " Maybe end of tokens + elseif token.value=='this' + let item.kind = 'itemThis' + let state = 2 + " Maybe end of tokens + elseif token.value==')' + let parenGroup = token.group + let state = 3 + elseif token.value==']' + let parenGroup = token.group + let state = 4 + elseif token.kind == 'cppDigit' + let state = -1 + break + endif + elseif state==2 + if index(itemsDelimiters, token.value)>=0 + call insert(result, item) + let item = {'tokens' : [], 'kind' : 'itemUnknown'} + let state = 1 + elseif token.value == '::' + call insert(item.tokens, token) + " We have to get namespace or classscope + let state = 8 + " Maybe end of tokens + else + call insert(result, item) + let state=-1 + break + endif + elseif state==3 + call insert(item.tokens, token) + if token.value=='(' && token.group == parenGroup + let state = 5 + " Maybe end of tokens + endif + elseif state==4 + call insert(item.tokens, token) + if token.value=='[' && token.group == parenGroup + let state = 1 + endif + elseif state==5 + if token.kind=='cppWord' + " It's a function or method + let item.kind = 'itemFunction' + call insert(item.tokens, token) + let state = 2 + " Maybe end of tokens + elseif token.value == '>' + " Maybe a cpp cast or template + let item.kind = 'itemTemplate' + call insert(item.tokens, token) + let parenGroup = token.group + let state = 6 + else + " Perhaps it's a C cast eg: ((void*)(pData)) or a variable eg:(*pData) + let item.kind = omni#cpp#utils#GetCastType(item.tokens) + let state=-1 + call insert(result, item) + break + endif + elseif state==6 + call insert(item.tokens, token) + if token.value == '<' && token.group == parenGroup + " Maybe a cpp cast or template + let state = 7 + endif + elseif state==7 + call insert(item.tokens, token) + if token.kind=='cppKeyword' + " It's a cpp cast + let item.kind = omni#cpp#utils#GetCastType(item.tokens) + let state=-1 + call insert(result, item) + break + else + " Template ? + let state=-1 + call insert(result, item) + break + endif + elseif state==8 + if token.kind=='cppWord' + call insert(item.tokens, token) + let state = 2 + " Maybe end of tokens + else + let state=-1 + call insert(result, item) + break + endif + elseif state==9 + if token.kind == 'cppWord' + call insert(item.tokens, token) + let state = 10 + " Maybe end of tokens + else + let state=-1 + call insert(result, item) + break + endif + elseif state==10 + if token.value == '::' + call insert(item.tokens, token) + let state = 9 + " Maybe end of tokens + else + let state=-1 + call insert(result, item) + break + endif + endif + endfor + + if index([2, 5, 8, 9, 10], state)>=0 + if state==5 + let item.kind = omni#cpp#utils#GetCastType(item.tokens) + endif + call insert(result, item) + endif + + return result +endfunc + +" Resolve type information of items +" @param namespaces: list of namespaces used in the file +" @param szCurrentClassScope: the current class scope, only used for the first +" item to detect if this item is a class member (attribute, method) +" @param items: list of item, can be an empty list @see GetItemsToComplete +function! omni#cpp#items#ResolveItemsTypeInfo(contextStack, items) + " Note: kind = itemVariable|cCast|cppCast|template|function|itemUnknown|this + " For the first item, if it's a variable we try to detect the type of the + " variable with the function searchdecl. If it fails, thanks to the + " current class scope, we try to detect if the variable is an attribute + " member. + " If the kind of the item is a function, we have to first check if the + " function is a method of the class, if it fails we try to get a match in + " the global namespace. After that we get the returned type of the + " function. + " It the kind is a C cast or C++ cast, there is no problem, it's the + " easiest case. We just extract the type of the cast. + + let szCurrentContext = '' + let typeInfo = {} + " Note: We search the decl only for the first item + let bSearchDecl = 1 + for item in a:items + let curItem = item + if index(['itemVariable', 'itemFunction'], curItem.kind)>=0 + " Note: a variable can be : MyNs::MyClass::_var or _var or (*pVar) + " or _var[0][0] + let szSymbol = s:GetSymbol(curItem.tokens) + + " If we have MyNamespace::myVar + " We add MyNamespace in the context stack set szSymbol to myVar + if match(szSymbol, '::\w\+$') >= 0 + let szCurrentContext = substitute(szSymbol, '::\w\+$', '', 'g') + let szSymbol = matchstr(szSymbol, '\w\+$') + endif + let tmpContextStack = a:contextStack + if szCurrentContext != '' + let tmpContextStack = [szCurrentContext] + a:contextStack + endif + + if curItem.kind == 'itemVariable' + let typeInfo = s:GetTypeInfoOfVariable(tmpContextStack, szSymbol, bSearchDecl) + else + let typeInfo = s:GetTypeInfoOfReturnedType(tmpContextStack, szSymbol) + endif + + elseif curItem.kind == 'itemThis' + if len(a:contextStack) + let typeInfo = omni#cpp#utils#CreateTypeInfo(substitute(a:contextStack[0], '^::', '', 'g')) + endif + elseif curItem.kind == 'itemCast' + let typeInfo = omni#cpp#utils#CreateTypeInfo(s:ResolveCCast(curItem.tokens)) + elseif curItem.kind == 'itemCppCast' + let typeInfo = omni#cpp#utils#CreateTypeInfo(s:ResolveCppCast(curItem.tokens)) + elseif curItem.kind == 'itemScope' + let typeInfo = omni#cpp#utils#CreateTypeInfo(substitute(s:TokensToString(curItem.tokens), '\s', '', 'g')) + endif + + if omni#cpp#utils#IsTypeInfoValid(typeInfo) + let szCurrentContext = omni#cpp#utils#GetTypeInfoString(typeInfo) + endif + let bSearchDecl = 0 + endfor + + return typeInfo +endfunc + +" Get symbol name +function! s:GetSymbol(tokens) + let szSymbol = '' + let state = 0 + for token in a:tokens + if state == 0 + if token.value == '::' + let szSymbol .= token.value + let state = 1 + elseif token.kind == 'cppWord' + let szSymbol .= token.value + let state = 2 + " Maybe end of token + endif + elseif state == 1 + if token.kind == 'cppWord' + let szSymbol .= token.value + let state = 2 + " Maybe end of token + else + " Error + break + endif + elseif state == 2 + if token.value == '::' + let szSymbol .= token.value + let state = 1 + else + break + endif + endif + endfor + return szSymbol +endfunc + +" Search a declaration. +" eg: std::map +" can be empty +" Note: The returned type info can be a typedef +" The typedef resolution is done later +" @return +" - a dictionnary where keys are +" - type: the type of value same as type() +" - value: the value +function! s:GetTypeInfoOfVariable(contextStack, szVariable, bSearchDecl) + let result = {} + + if a:bSearchDecl + " Search type of declaration + "let result = s:SearchTypeInfoOfDecl(a:szVariable) + let result = s:SearchDecl(a:szVariable) + endif + + if result=={} + let szFilter = "index(['m', 'v'], v:val.kind[0])>=0" + let tagItem = s:ResolveSymbol(a:contextStack, a:szVariable, szFilter) + if tagItem=={} + return result + endif + + let szCmdWithoutVariable = substitute(omni#cpp#utils#ExtractCmdFromTagItem(tagItem), '\C\<'.a:szVariable.'\>.*', '', 'g') + let tokens = omni#cpp#tokenizer#Tokenize(omni#cpp#utils#GetCodeFromLine(szCmdWithoutVariable)) + let result = omni#cpp#utils#CreateTypeInfo(omni#cpp#utils#ExtractTypeInfoFromTokens(tokens)) + " TODO: Namespace resolution for result + + if result != {} && result.value=='' + " result.value=='' + " eg: + " struct + " { + " }gVariable; + if has_key(tagItem, 'typeref') + " Maybe the variable is a global var of an + " unnamed class, struct or union. + " eg: + " 1) + " struct + " { + " }gVariable; + " In this case we need the tags (the patched version) + " Note: We can have a named type like this: + " 2) + " class A + " { + " }gVariable; + if s:IsUnnamedType(tagItem) + " It's an unnamed type we are in the case 1) + let result = omni#cpp#utils#CreateTypeInfo(tagItem) + else + " It's not an unnamed type we are in the case 2) + + " eg: tagItem.typeref = 'struct:MY_STRUCT::MY_SUBSTRUCT' + let szTypeRef = substitute(tagItem.typeref, '^\w\+:', '', '') + + " eg: szTypeRef = 'MY_STRUCT::MY_SUBSTRUCT' + let result = omni#cpp#utils#CreateTypeInfo(szTypeRef) + endif + endif + endif + endif + return result +endfunc + +" Get the type info string from the returned type of function +function! s:GetTypeInfoOfReturnedType(contextStack, szFunctionName) + let result = {} + + let szFilter = "index(['f', 'p'], v:val.kind[0])>=0" + let tagItem = s:ResolveSymbol(a:contextStack, a:szFunctionName, szFilter) + + if tagItem != {} + let szCmdWithoutVariable = substitute(omni#cpp#utils#ExtractCmdFromTagItem(tagItem), '\C\<'.a:szFunctionName.'\>.*', '', 'g') + let tokens = omni#cpp#tokenizer#Tokenize(omni#cpp#utils#GetCodeFromLine(szCmdWithoutVariable)) + let result = omni#cpp#utils#CreateTypeInfo(omni#cpp#utils#ExtractTypeInfoFromTokens(tokens)) + " TODO: Namespace resolution for result + return result + endif + return result +endfunc + +" Resolve a symbol, return a tagItem +" Gets the first symbol found in the context stack +function! s:ResolveSymbol(contextStack, szSymbol, szTagFilter) + let tagItem = {} + for szCurrentContext in a:contextStack + if szCurrentContext != '::' + let szTagQuery = substitute(szCurrentContext, '^::', '', 'g').'::'.a:szSymbol + else + let szTagQuery = a:szSymbol + endif + + let tagList = omni#common#utils#TagListNoThrow('^'.szTagQuery.'$') + call filter(tagList, a:szTagFilter) + if len(tagList) + let tagItem = tagList[0] + break + endif + endfor + return tagItem +endfunc + +" Return if the tag item represent an unnamed type +function! s:IsUnnamedType(tagItem) + let bResult = 0 + if has_key(a:tagItem, 'typeref') + " Note: Thanks for __anon ! + let bResult = match(a:tagItem.typeref, '\C\<__anon') >= 0 + endif + return bResult +endfunc + +" Search the declaration of a variable and return the type info +function! s:SearchTypeInfoOfDecl(szVariable) + let szReVariable = '\C\<'.a:szVariable.'\>' + + let originalPos = getpos('.') + let origPos = originalPos[1:2] + let curPos = origPos + let stopPos = origPos + + while curPos !=[0,0] + " We go to the start of the current scope + let curPos = searchpairpos('{', '', '}', 'bW', g:omni#cpp#utils#expIgnoreComments) + if curPos != [0,0] + let matchPos = curPos + " Now want to search our variable but we don't want to go in child + " scope + while matchPos != [0,0] + let matchPos = searchpos('{\|'.szReVariable, 'W', stopPos[0]) + if matchPos != [0,0] + " We ignore matches under comment + if omni#cpp#utils#IsCursorInCommentOrString() + continue + endif + + " Getting the current line + let szLine = getline('.') + if match(szLine, szReVariable)>=0 + " We found our variable + " Check if the current instruction is a decl instruction + let tokens = omni#cpp#utils#TokenizeCurrentInstruction() + let szTypeInfo = s:ExtractTypeInfoFromDecl(tokens) + if szTypeInfo != '' + call setpos('.', originalPos) + return omni#cpp#utils#CreateTypeInfo(szTypeInfo) + endif + else + " We found a child scope, we don't want to go in, thus + " we search for the end } of this child scope + let bracketEnd = searchpairpos('{', '', '}', 'nW', g:omni#cpp#utils#expIgnoreComments) + if bracketEnd == [0,0] + break + endif + + if bracketEnd[0] >= stopPos[0] + " The end of the scope is after our cursor we stop + " the search + break + else + " We move the cursor and continue to search our + " variable + call setpos('.', [0, bracketEnd[0], bracketEnd[1], 0]) + endif + endif + endif + endwhile + + " Backing to the start of the scope + call setpos('.', [0,curPos[0], curPos[1], 0]) + let stopPos = curPos + endif + endwhile + + let result = {} + if s:LocalSearchDecl(a:szVariable)==0 && !omni#cpp#utils#IsCursorInCommentOrString() + let tokens = omni#cpp#utils#TokenizeCurrentInstruction() + let szTypeInfo = s:ExtractTypeInfoFromDecl(tokens) + if szTypeInfo != '' + let result = omni#cpp#utils#CreateTypeInfo(szTypeInfo) + endif + endif + + call setpos('.', originalPos) + + return result +endfunc + +" Search a declaration +" @return +" - tokens of the current instruction if success +" - empty list if failure +function! s:SearchDecl(szVariable) + let result = {} + let originalPos = getpos('.') + let searchResult = s:LocalSearchDecl(a:szVariable) + if searchResult==0 + " searchdecl() may detect a decl if the variable is in a conditional + " instruction (if, elseif, while etc...) + " We have to check if the detected decl is really a decl instruction + let tokens = omni#cpp#utils#TokenizeCurrentInstruction() + + for token in tokens + " Simple test + if index(['if', 'elseif', 'while', 'for', 'switch'], token.value)>=0 + " Invalid declaration instruction + call setpos('.', originalPos) + return result + endif + endfor + + let szTypeInfo = s:ExtractTypeInfoFromDecl(tokens) + if szTypeInfo != '' + let result = omni#cpp#utils#CreateTypeInfo(szTypeInfo) + endif + endif + call setpos('.', originalPos) + return result +endfunc + +" Extract the type info string from an instruction. +" We use a small parser to extract the type +" We parse the code according to a C++ BNF from: http://www.nongnu.org/hcb/#basic.link +" @param tokens: token list of the current instruction +function! s:ExtractTypeInfoFromDecl(tokens) + return omni#cpp#utils#ExtractTypeInfoFromTokens(a:tokens) +endfunc + +" Convert tokens to string +function! s:TokensToString(tokens) + let result = '' + for token in a:tokens + let result = result . token.value . ' ' + endfor + return result[:-2] +endfunc + +" Resolve a cast. +" Resolve a C++ cast +" @param list of token. tokens must be a list that represents +" a cast expression (C++ cast) the function does not control +" if it's a cast or not +" eg: static_cast<MyClass*>(something) +" @return type info string +function! s:ResolveCppCast(tokens) + return omni#cpp#utils#ExtractTypeInfoFromTokens(s:ResolveCast(a:tokens, '<', '>')) +endfunc + +" Resolve a cast. +" Resolve a C cast +" @param list of token. tokens must be a list that represents +" a cast expression (C cast) the function does not control +" if it's a cast or not +" eg: (MyClass*)something +" @return type info string +function! s:ResolveCCast(tokens) + return omni#cpp#utils#ExtractTypeInfoFromTokens(s:ResolveCast(a:tokens, '(', ')')) +endfunc + +" Resolve a cast. +" Resolve a C cast +" @param list of token. tokens must be a list that represents +" a cast expression (C cast) the function does not control +" if it's a cast or not +" eg: (MyClass*)something +" @return type tokens +function! s:ResolveCast(tokens, startChar, endChar) + let tokens = omni#cpp#utils#BuildParenthesisGroups(a:tokens) + + " We remove useless parenthesis eg: (((MyClass))) + let tokens = omni#cpp#utils#SimplifyParenthesis(tokens) + + let countItem=0 + let startIndex = -1 + let endIndex = -1 + let i = 0 + for token in tokens + if startIndex==-1 + if token.value==a:startChar + let countItem += 1 + let startIndex = i + endif + else + if token.value==a:startChar + let countItem += 1 + elseif token.value==a:endChar + let countItem -= 1 + endif + + if countItem==0 + let endIndex = i + break + endif + endif + let i+=1 + endfor + + return tokens[startIndex+1 : endIndex-1] +endfunc + +" Replacement for build-in function 'searchdecl' +" It does not require that the upper-level bracket is in the first column. +" Otherwise it should be equal to 'searchdecl(name, 0, 1)' +" @param name: name of variable to find declaration for +function! s:LocalSearchDecl(name) + + if g:OmniCpp_LocalSearchDecl == 0 + let bUserIgnoreCase = &ignorecase + + " Forcing the noignorecase option + " avoid bug when, for example, if we have a declaration like this : "A a;" + set noignorecase + + let result = searchdecl(a:name, 0, 1) + + " Restoring user's setting + let &ignorecase = bUserIgnoreCase + + return result + endif + + let lastpos = getpos('.') + let winview = winsaveview() + let lastfoldenable = &foldenable + let &foldenable = 0 + + " We add \C (noignorecase) to + " avoid bug when, for example, if we have a declaration like this : "A a;" + let varname = "\\C\\<" . a:name . "\\>" + + " Go to first blank line before begin of highest scope + normal 99[{ + let scopepos = getpos('.') + while (line('.') > 1) && (len(split(getline('.'))) > 0) + call cursor(line('.')-1, 0) + endwhile + + let declpos = [ 0, 0, 0, 0 ] + while search(varname, '', scopepos[1]) > 0 + " Check if we are a string or a comment + if omni#cpp#utils#IsCursorInCommentOrString() + continue + endif + + " Remember match + let declpos = getpos('.') + endwhile + if declpos[1] != 0 + " We found a match + call winrestview(winview) + call setpos('.', declpos) + let &foldenable = lastfoldenable + return 0 + endif + + while search(varname, '', lastpos[1]) > 0 + " Check if current scope is ending before variable + let old_cur = getpos('.') + normal ]} + let new_cur = getpos('.') + call setpos('.', old_cur) + if (new_cur[1] < lastpos[1]) || ((new_cur[1] == lastpos[1]) && (new_cur[2] < lastpos[2])) + continue + endif + + " Check if we are a string or a comment + if omni#cpp#utils#IsCursorInCommentOrString() + continue + endif + + " We found match + call winrestview(winview) + call setpos('.', old_cur) + let &foldenable = lastfoldenable + return 0 + endwhile + + " No match found. + call winrestview(winview) + let &foldenable = lastfoldenable + return 1 +endfunc |