Flow tweaks

* Improved OR operator
* Various fixes for arguments

Author: amadeus

extras/flow.vim

@@ -1,5 +1,5 @@
 syntax region  jsFlowDefinition     contained                        start=/:/    end=/\%(\s*[,=;)\n]\)\@=/ contains=@jsFlowCluster containedin=jsParen
-syntax region  jsFlowArgumentDef    contained                        start=/:/    end=/\%(\s*[,)]\)\@=/ contains=@jsFlowCluster
+syntax region  jsFlowArgumentDef    contained                        start=/:/    end=/\%(\s*[,)]\|=>\@!\)\@=/ contains=@jsFlowCluster
 syntax region  jsFlowArray          contained matchgroup=jsFlowNoise start=/\[/   end=/\]/        contains=@jsFlowCluster
 syntax region  jsFlowObject         contained matchgroup=jsFlowNoise start=/{/    end=/}/         contains=@jsFlowCluster
 syntax region  jsFlowParens         contained matchgroup=jsFlowNoise start=/(/  end=/)/ contains=@jsFlowCluster
@@ -12,14 +12,16 @@ syntax region  jsFlowArrowArguments contained matchgroup=jsFlowNoise start=/(/
 syntax match   jsFlowArrow          contained /=>/ skipwhite skipempty nextgroup=jsFlowType,jsFlowTypeCustom,jsFlowParens
 syntax match   jsFlowMaybe          contained /?/ skipwhite skipempty nextgroup=jsFlowType,jsFlowTypeCustom,jsFlowParens,jsFlowArrowArguments
 syntax match   jsFlowObjectKey      contained /[0-9a-zA-Z_$?]*\(\s*:\)\@=/ contains=jsFunctionKey,jsFlowMaybe skipwhite skipempty nextgroup=jsObjectValue containedin=jsObject
+syntax match   jsFlowOrOperator     contained /|/ skipwhite skipempty nextgroup=@jsFlowCluster
 
 syntax match   jsFlowReturn         contained /:\s*/ contains=jsFlowNoise skipwhite skipempty nextgroup=@jsFlowReturnCluster
-syntax region  jsFlowReturnObject   contained matchgroup=jsFlowNoise start=/{/    end=/}/  contains=@jsFlowCluster skipwhite skipempty nextgroup=jsFuncBlock
-syntax region  jsFlowReturnArray    contained matchgroup=jsFlowNoise start=/\[/   end=/\]/ contains=@jsFlowCluster skipwhite skipempty nextgroup=jsFuncBlock
-syntax region  jsFlowReturnParens   contained matchgroup=jsFlowNoise start=/(/   end=/)/   contains=@jsFlowCluster skipwhite skipempty nextgroup=jsFuncBlock
-syntax match   jsFlowReturnKeyword  contained /\k\+/ contains=jsFlowType,jsFlowTypeCustom skipwhite skipempty nextgroup=jsFlowReturnGroup,jsFuncBlock
+syntax region  jsFlowReturnObject   contained matchgroup=jsFlowNoise start=/{/    end=/}/  contains=@jsFlowCluster skipwhite skipempty nextgroup=jsFuncBlock,jsFlowReturnOrOp
+syntax region  jsFlowReturnArray    contained matchgroup=jsFlowNoise start=/\[/   end=/\]/ contains=@jsFlowCluster skipwhite skipempty nextgroup=jsFuncBlock,jsFlowReturnOrOp
+syntax region  jsFlowReturnParens   contained matchgroup=jsFlowNoise start=/(/    end=/)/  contains=@jsFlowCluster skipwhite skipempty nextgroup=jsFuncBlock,jsFlowReturnOrOp
+syntax match   jsFlowReturnKeyword  contained /\k\+/ contains=jsFlowType,jsFlowTypeCustom skipwhite skipempty nextgroup=jsFlowReturnGroup,jsFuncBlock,jsFlowReturnOrOp
 syntax match   jsFlowReturnMaybe    contained /?/ skipwhite skipempty nextgroup=jsFlowReturnKeyword
-syntax region  jsFlowReturnGroup    contained matchgroup=jsFlowNoise start=/</ end=/>/ contains=@jsFlowCluster skipwhite skipempty nextgroup=jsFuncBlock
+syntax region  jsFlowReturnGroup    contained matchgroup=jsFlowNoise start=/</ end=/>/ contains=@jsFlowCluster skipwhite skipempty nextgroup=jsFuncBlock,jsFlowReturnOrOp
+syntax match   jsFlowReturnOrOp     contained /\s*|\s*/ skipwhite skipempty nextgroup=@jsFlowReturnCluster
 
 syntax region  jsFlowFunctionGroup  contained matchgroup=jsFlowNoise start=/</ end=/>/ contains=@jsFlowCluster skipwhite skipempty nextgroup=jsFuncArgs
 syntax region  jsFlowClassGroup     contained matchgroup=jsFlowNoise start=/</ end=/>/ contains=@jsFlowCluster skipwhite skipempty nextgroup=jsClassBlock
@@ -39,8 +41,8 @@ syntax region  jsFlowDeclareBlock   contained matchgroup=jsFlowNoise start=/{/ e
 
 syntax region jsFlowInterfaceBlock  contained matchgroup=jsFlowNoise start=/{/ end=/}/ contains=jsObjectKey,jsObjectKeyString,jsObjectKeyComputed,jsObjectSeparator,jsObjectFuncName,jsObjectMethodType,jsGenerator,jsComment,jsObjectStringKey,jsSpreadExpression,jsFlowNoise keepend
 
-syntax cluster jsFlowReturnCluster            contains=jsFlowNoise,jsFlowReturnObject,jsFlowReturnArray,jsFlowReturnKeyword,jsFlowReturnGroup,jsFlowReturnMaybe
-syntax cluster jsFlowCluster                  contains=jsFlowArray,jsFlowObject,jsFlowNoise,jsFlowTypeof,jsFlowType,jsFlowGroup,jsFlowArrowArguments,jsFlowMaybe,jsFlowParens
+syntax cluster jsFlowReturnCluster            contains=jsFlowNoise,jsFlowReturnObject,jsFlowReturnArray,jsFlowReturnKeyword,jsFlowReturnGroup,jsFlowReturnMaybe,jsFlowReturnOrOp
+syntax cluster jsFlowCluster                  contains=jsFlowArray,jsFlowObject,jsFlowNoise,jsFlowTypeof,jsFlowType,jsFlowGroup,jsFlowArrowArguments,jsFlowMaybe,jsFlowParens,jsFlowOrOperator
 
 if version >= 508 || !exists("did_javascript_syn_inits")
   if version < 508
@@ -79,5 +81,7 @@ if version >= 508 || !exists("did_javascript_syn_inits")
   HiLink jsFlowInterface          PreProc
   HiLink jsFlowNoise              Noise
   HiLink jsFlowObjectKey          jsObjectKey
+  HiLink jsFlowOrOperator         PreProc
+  HiLink jsFlowReturnOrOp         jsFlowOrOperator
   delcommand HiLink
 endif