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Diffstat (limited to 'runtime/doc/vim9.txt')
| -rw-r--r-- | runtime/doc/vim9.txt | 48 |
1 files changed, 23 insertions, 25 deletions
diff --git a/runtime/doc/vim9.txt b/runtime/doc/vim9.txt index 242580405..974ee6af6 100644 --- a/runtime/doc/vim9.txt +++ b/runtime/doc/vim9.txt @@ -1,4 +1,4 @@ -*vim9.txt* For Vim version 8.2. Last change: 2021 Mar 03 +*vim9.txt* For Vim version 8.2. Last change: 2021 Mar 30 VIM REFERENCE MANUAL by Bram Moolenaar @@ -204,7 +204,7 @@ However, it is recommended to always use "g:" to refer to a global function for clarity. Since a script-local function reference can be used without "s:" the name must -start with an upper case letter even when using the ":s" prefix. In legacy +start with an upper case letter even when using the "s:" prefix. In legacy script "s:funcref" could be used, because it could not be referred to with "funcref". In Vim9 script it can, therefore "s:Funcref" must be used to avoid that the name interferes with builtin functions. @@ -926,6 +926,27 @@ For these the backtick expansion can be used. Example: > g/pattern/s/^/`=newText`/ enddef +Closures defined in a loop will share the same context. For example: > + var flist: list<func> + for i in range(10) + var inloop = i + flist[i] = () => inloop + endfor + +The "inloop" variable will exist only once, all closures put in the list refer +to the same instance, which in the end will have the value 9. This is +efficient. If you do want a separate context for each closure call a function +to define it: > + def GetFunc(i: number): func + var inloop = i + return () => inloop + enddef + + var flist: list<func> + for i in range(10) + flist[i] = GetFunc(i) + endfor + ============================================================================== 4. Types *vim9-types* @@ -1006,8 +1027,6 @@ And classes and interfaces can be used as types: > :var mine: MyInterface<string> {not implemented yet} -You may also find this wiki useful. It was written by an early adoptor of -Vim9 script: https://github.com/lacygoill/wiki/blob/master/vim/vim9.md Variable types and type casting ~ *variable-types* @@ -1080,27 +1099,6 @@ to a list of numbers. Same for |extend()|, use |extendnew()| instead, and for |flatten()|, use |flattennew()| instead. -Closures defined in a loop will share the same context. For example: > - var flist: list<func> - for i in range(10) - var inloop = i - flist[i] = () => inloop - endfor - -The "inloop" variable will exist only once, all closures put in the list refer -to the same instance, which in the end will have the value 9. This is -efficient. If you do want a separate context for each closure call a function -to define it: > - def GetFunc(i: number): func - var inloop = i - return () => inloop - enddef - - var flist: list<func> - for i in range(10) - flist[i] = GetFunc(i) - endfor - ============================================================================== 5. Namespace, Import and Export |