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Update runtime files

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This commit is contained in:
Bram Moolenaar
2021-10-16 15:23:36 +01:00
parent 28b6a3bef6
commit 2286304cdb
26 changed files with 412 additions and 239 deletions
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20
runtime/doc/vim9.txt
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@ -103,7 +103,7 @@ script and `:def` functions; details are below:
writefile(['done'], 'file.txt')
- You cannot use `:xit`, `:t`, `:k`, `:append`, `:change`, `:insert`, `:open`,
and `:s` or `:d` with only flags.
or curly-braces names.
- You cannot use curly-braces names.
- A range before a command must be prefixed with a colon: >
:%s/this/that
- Executing a register with "@r" does not work, you can prepend a colon or use
@ -206,7 +206,7 @@ When a function argument is optional (it has a default value) passing `v:none`
as the argument results in using the default value. This is useful when you
want to specify a value for an argument that comes after an argument that
should use its default value. Example: >
def MyFunc(one = 'one', last = 'last)
def MyFunc(one = 'one', last = 'last')
...
enddef
MyFunc(v:none, 'LAST') # first argument uses default value 'one'
@ -631,7 +631,7 @@ at the start of the line indicates line continuation: >
| echo 'match'
| endif
Note that this means that in heredoc the first line cannot be a bar: >
Note that this means that in heredoc the first line cannot start with a bar: >
var lines =<< trim END
| this doesn't work
END
@ -639,7 +639,7 @@ Either use an empty line at the start or do not use heredoc. Or temporarily
add the "C" flag to 'cpoptions': >
set cpo+=C
var lines =<< trim END
| this doesn't work
| this works
END
set cpo-=C
If the heredoc is inside a function 'cpoptions' must be set before :def and
@ -1118,7 +1118,7 @@ The map argument is a string expression, which is evaluated without the
function scope. Instead, use a lambda: >
def MapList(): list<string>
var list = ['aa', 'bb', 'cc', 'dd']
return range(1, 2)->map(( _, v) => list[v])
return range(1, 2)->map((_, v) => list[v])
enddef
The same is true for commands that are not compiled, such as `:global`.
@ -1322,16 +1322,16 @@ an error, thus breaking backwards compatibility. For example:
- Using a string value when setting a number option.
- Using a number where a string is expected. *E1024*
One consequence is that the item type of a list or dict given to map() must
One consequence is that the item type of a list or dict given to |map()| must
not change. This will give an error in Vim9 script: >
vim9 echo map([1, 2, 3], (i, v) => 'item ' .. i)
echo map([1, 2, 3], (i, v) => 'item ' .. i)
E1012: Type mismatch; expected number but got string
Instead use |mapnew(): >
vim9 echo mapnew([1, 2, 3], (i, v) => 'item ' .. i)
Instead use |mapnew()|: >
echo mapnew([1, 2, 3], (i, v) => 'item ' .. i)
['item 0', 'item 1', 'item 2']
If the item type was determined to be "any" it can change to a more specific
type. E.g. when a list of mixed types gets changed to a list of numbers: >
type. E.g. when a list of mixed types gets changed to a list of strings: >
var mylist = [1, 2.0, '3']
# typename(mylist) == "list<any>"
map(mylist, (i, v) => 'item ' .. i)