patch 8.2.1462: Vim9: string slice not supported yet
Problem: Vim9: string slice not supported yet.
Solution: Add support for string slicing.
diff --git a/src/testdir/test_vim9_disassemble.vim b/src/testdir/test_vim9_disassemble.vim
index ef89322..d901cb0 100644
--- a/src/testdir/test_vim9_disassemble.vim
+++ b/src/testdir/test_vim9_disassemble.vim
@@ -971,7 +971,7 @@
assert_equal('aabb', ConcatString())
enddef
-def StringIndex(): number
+def StringIndex(): string
let s = "abcd"
let res = s[1]
return res
diff --git a/src/testdir/test_vim9_expr.vim b/src/testdir/test_vim9_expr.vim
index 182295c..cae719d 100644
--- a/src/testdir/test_vim9_expr.vim
+++ b/src/testdir/test_vim9_expr.vim
@@ -2074,7 +2074,7 @@
assert_equal(123, d.key)
enddef
-def Test_expr7_subscript()
+def Test_expr7_string_subscript()
let lines =<< trim END
let text = 'abcdef'
assert_equal('', text[-1])
@@ -2094,6 +2094,28 @@
assert_equal('f', text[5])
assert_equal('', text[6])
assert_equal('', text[999])
+
+ assert_equal('ábçdëf', text[0:-1])
+ assert_equal('ábçdëf', text[0 :-1])
+ assert_equal('ábçdëf', text[0: -1])
+ assert_equal('ábçdëf', text[0 : -1])
+ assert_equal('ábçdëf', text[0
+ :-1])
+ assert_equal('ábçdëf', text[0:
+ -1])
+ assert_equal('ábçdëf', text[0 : -1
+ ])
+ assert_equal('bçdëf', text[1:-1])
+ assert_equal('çdëf', text[2:-1])
+ assert_equal('dëf', text[3:-1])
+ assert_equal('ëf', text[4:-1])
+ assert_equal('f', text[5:-1])
+ assert_equal('', text[6:-1])
+ assert_equal('', text[999:-1])
+
+ assert_equal('ábçd', text[:3])
+ assert_equal('bçdëf', text[1:])
+ assert_equal('ábçdëf', text[:])
END
CheckDefSuccess(lines)
CheckScriptSuccess(['vim9script'] + lines)