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patch 8.2.1466: Vim9: cannot index or slice a variable with type "any"

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Problem:    Vim9: cannot index or slice a variable with type "any".
Solution:   Add runtime index and slice.
This commit is contained in:
Bram Moolenaar
2020-08-16 17:33:35 +02:00
parent 56acb0943e
commit cc673e746a
11 changed files with 417 additions and 212 deletions
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90
src/testdir/test_vim9_expr.vim
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@@ -1457,7 +1457,7 @@ def Test_expr7_list()
4]
call CheckDefFailure(["let x = 1234[3]"], 'E1107:')
call CheckDefExecFailure(["let x = g:anint[3]"], 'E1029:')
call CheckDefExecFailure(["let x = g:anint[3]"], 'E1062:')
call CheckDefFailure(["let x = g:list_mixed[xxx]"], 'E1001:')
@@ -1768,9 +1768,91 @@ def Test_expr_member()
call CheckDefExecFailure(["let d: dict<number>", "d = g:list_empty"], 'E1029: Expected dict but got list')
enddef
def Test_expr_index()
# getting the one member should clear the list only after getting the item
assert_equal('bbb', ['aaa', 'bbb', 'ccc'][1])
def Test_expr7_any_index_slice()
let lines =<< trim END
# getting the one member should clear the list only after getting the item
assert_equal('bbb', ['aaa', 'bbb', 'ccc'][1])
# string is permissive, index out of range accepted
g:teststring = 'abcdef'
assert_equal('b', g:teststring[1])
assert_equal('', g:teststring[-1])
assert_equal('', g:teststring[99])
assert_equal('b', g:teststring[1:1])
assert_equal('bcdef', g:teststring[1:])
assert_equal('abcd', g:teststring[:3])
assert_equal('cdef', g:teststring[-4:])
assert_equal('abcdef', g:teststring[-9:])
assert_equal('abcd', g:teststring[:-3])
assert_equal('', g:teststring[:-9])
# blob index cannot be out of range
g:testblob = 0z01ab
assert_equal(0x01, g:testblob[0])
assert_equal(0xab, g:testblob[1])
assert_equal(0xab, g:testblob[-1])
assert_equal(0x01, g:testblob[-2])
# blob slice accepts out of range
assert_equal(0z01ab, g:testblob[0:1])
assert_equal(0z01, g:testblob[0:0])
assert_equal(0z01, g:testblob[-2:-2])
assert_equal(0zab, g:testblob[1:1])
assert_equal(0zab, g:testblob[-1:-1])
assert_equal(0z, g:testblob[2:2])
assert_equal(0z, g:testblob[0:-3])
# list index cannot be out of range
g:testlist = [0, 1, 2, 3]
assert_equal(0, g:testlist[0])
assert_equal(1, g:testlist[1])
assert_equal(3, g:testlist[3])
assert_equal(3, g:testlist[-1])
assert_equal(0, g:testlist[-4])
assert_equal(1, g:testlist[g:theone])
# list slice accepts out of range
assert_equal([0], g:testlist[0:0])
assert_equal([3], g:testlist[3:3])
assert_equal([0, 1], g:testlist[0:1])
assert_equal([0, 1, 2, 3], g:testlist[0:3])
assert_equal([0, 1, 2, 3], g:testlist[0:9])
assert_equal([], g:testlist[-1:1])
assert_equal([1], g:testlist[-3:1])
assert_equal([0, 1], g:testlist[-4:1])
assert_equal([0, 1], g:testlist[-9:1])
assert_equal([1, 2, 3], g:testlist[1:-1])
assert_equal([1], g:testlist[1:-3])
assert_equal([], g:testlist[1:-4])
assert_equal([], g:testlist[1:-9])
g:testdict = #{a: 1, b: 2}
assert_equal(1, g:testdict['a'])
assert_equal(2, g:testdict['b'])
END
CheckDefSuccess(lines)
CheckScriptSuccess(['vim9script'] + lines)
CheckDefExecFailure(['echo g:testblob[2]'], 'E979:')
CheckScriptFailure(['vim9script', 'echo g:testblob[2]'], 'E979:')
CheckDefExecFailure(['echo g:testblob[-3]'], 'E979:')
CheckScriptFailure(['vim9script', 'echo g:testblob[-3]'], 'E979:')
CheckDefExecFailure(['echo g:testlist[4]'], 'E684:')
CheckScriptFailure(['vim9script', 'echo g:testlist[4]'], 'E684:')
CheckDefExecFailure(['echo g:testlist[-5]'], 'E684:')
CheckScriptFailure(['vim9script', 'echo g:testlist[-5]'], 'E684:')
CheckDefExecFailure(['echo g:testdict["a":"b"]'], 'E719:')
CheckScriptFailure(['vim9script', 'echo g:testdict["a":"b"]'], 'E719:')
CheckDefExecFailure(['echo g:testdict[1]'], 'E716:')
CheckScriptFailure(['vim9script', 'echo g:testdict[1]'], 'E716:')
unlet g:teststring
unlet g:testblob
unlet g:testlist
enddef
def Test_expr_member_vim9script()