Patch 8.2.2619
Problem: Vim9: no test for return type of lambda.
Solution: Add a test.
Files: src/testdir/test_vim9_func.vim
*** ../vim-8.2.2618/src/testdir/test_vim9_func.vim 2021-03-17
18:42:04.442869185 +0100
--- src/testdir/test_vim9_func.vim 2021-03-17 21:28:13.977666940 +0100
***************
*** 752,762 ****
--- 752,777 ----
CheckDefFailure(lines, 'E1167:')
enddef
+ def FilterWithCond(x: string, Cond: func(string): bool): bool
+ return Cond(x)
+ enddef
+
def Test_lambda_return_type()
var lines =<< trim END
var Ref = (): => 123
END
CheckDefAndScriptFailure(lines, 'E1157:', 1)
+
+ # this works
+ for x in ['foo', 'boo']
+ echo FilterWithCond(x, (v) => v =~ '^b')
+ endfor
+
+ # this fails
+ lines =<< trim END
+ echo FilterWithCond('foo', (v) => v .. '^b')
+ END
+ CheckDefAndScriptFailure(lines, 'E1013: Argument 2: type mismatch, expected
func(string): bool but got func(any): string', 1)
enddef
def Test_lambda_uses_assigned_var()
*** ../vim-8.2.2618/src/version.c 2021-03-17 20:56:33.653085748 +0100
--- src/version.c 2021-03-17 21:28:51.769596088 +0100
***************
*** 752,753 ****
--- 752,755 ----
{ /* Add new patch number below this line */
+ /**/
+ 2619,
/**/
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