Patch 8.1.0019
Problem: Error when defining a Lambda with index of a function result.
Solution: When not evaluating an expression and skipping a function call,
set the return value to VAR_UNKNOWN.
Files: src/userfunc.c, src/testdir/test_lambda.vim
*** ../vim-8.1.0018/src/userfunc.c 2018-03-04 16:24:26.000000000 +0100
--- src/userfunc.c 2018-05-22 18:28:12.801624574 +0200
***************
*** 1349,1356 ****
}
! /* execute the function if no errors detected and executing */
! if (evaluate && error == ERROR_NONE)
{
char_u *rfname = fname;
--- 1349,1364 ----
}
! /*
! * Execute the function if executing and no errors were detected.
! */
! if (!evaluate)
! {
! // Not evaluating, which means the return value is unknown. This
! // matters for giving error messages.
! rettv->v_type = VAR_UNKNOWN;
! }
! else if (error == ERROR_NONE)
{
char_u *rfname = fname;
*** ../vim-8.1.0018/src/testdir/test_lambda.vim 2017-02-02 22:52:07.000000000
+0100
--- src/testdir/test_lambda.vim 2018-05-22 18:27:22.697688766 +0200
***************
*** 284,286 ****
--- 284,292 ----
call test_garbagecollect_now()
call assert_equal(14, s:Abar())
endfunc
+
+ func Test_lambda_with_index()
+ let List = {x -> [x]}
+ let Extract = {-> function(List, ['foobar'])()[0]}
+ call assert_equal('foobar', Extract())
+ endfunc
*** ../vim-8.1.0018/src/version.c 2018-05-22 17:50:38.683980716 +0200
--- src/version.c 2018-05-22 18:27:48.673655578 +0200
***************
*** 763,764 ****
--- 763,766 ----
{ /* Add new patch number below this line */
+ /**/
+ 19,
/**/
--
Westheimer's Discovery:
A couple of months in the laboratory can
frequently save a couple of hours in the library.
/// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net \\\
/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\ an exciting new programming language -- http://www.Zimbu.org ///
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