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|
" Test for :const
func s:noop()
endfunc
func Test_define_var_with_lock()
const i = 1
const f = 1.1
const s = 'vim'
const F = funcref('s:noop')
const l = [1, 2, 3]
const d = {'foo': 10}
if has('channel')
const j = test_null_job()
const c = test_null_channel()
endif
const b = v:true
const n = v:null
call assert_true(exists('i'))
call assert_true(exists('f'))
call assert_true(exists('s'))
call assert_true(exists('F'))
call assert_true(exists('l'))
call assert_true(exists('d'))
if has('channel')
call assert_true(exists('j'))
call assert_true(exists('c'))
endif
call assert_true(exists('b'))
call assert_true(exists('n'))
call assert_fails('let i = 1', 'E741:')
call assert_fails('let f = 1.1', 'E741:')
call assert_fails('let s = "vim"', 'E741:')
call assert_fails('let F = funcref("s:noop")', 'E741:')
call assert_fails('let l = [1, 2, 3]', 'E741:')
call assert_fails('call filter(l, "v:val % 2 == 0")', 'E741:')
call assert_fails('let d = {"foo": 10}', 'E741:')
if has('channel')
call assert_fails('let j = test_null_job()', 'E741:')
call assert_fails('let c = test_null_channel()', 'E741:')
endif
call assert_fails('let b = v:true', 'E741:')
call assert_fails('let n = v:null', 'E741:')
" Unlet
unlet i
unlet f
unlet s
unlet F
unlet l
unlet d
if has('channel')
unlet j
unlet c
endif
unlet b
unlet n
endfunc
func Test_define_l_var_with_lock()
" With l: prefix
const l:i = 1
const l:f = 1.1
const l:s = 'vim'
const l:F = funcref('s:noop')
const l:l = [1, 2, 3]
const l:d = {'foo': 10}
if has('channel')
const l:j = test_null_job()
const l:c = test_null_channel()
endif
const l:b = v:true
const l:n = v:null
call assert_fails('let l:i = 1', 'E741:')
call assert_fails('let l:f = 1.1', 'E741:')
call assert_fails('let l:s = "vim"', 'E741:')
call assert_fails('let l:F = funcref("s:noop")', 'E741:')
call assert_fails('let l:l = [1, 2, 3]', 'E741:')
call assert_fails('let l:d = {"foo": 10}', 'E741:')
if has('channel')
call assert_fails('let l:j = test_null_job()', 'E741:')
call assert_fails('let l:c = test_null_channel()', 'E741:')
endif
call assert_fails('let l:b = v:true', 'E741:')
call assert_fails('let l:n = v:null', 'E741:')
" Unlet
unlet l:i
unlet l:f
unlet l:s
unlet l:F
unlet l:l
unlet l:d
if has('channel')
unlet l:j
unlet l:c
endif
unlet l:b
unlet l:n
endfunc
func Test_define_script_var_with_lock()
const s:x = 0
call assert_fails('let s:x = 1', 'E741:')
unlet s:x
endfunc
func Test_destructuring_with_lock()
const [a, b, c] = [1, 1.1, 'vim']
call assert_fails('let a = 1', 'E741:')
call assert_fails('let b = 1.1', 'E741:')
call assert_fails('let c = "vim"', 'E741:')
const [d; e] = [1, 1.1, 'vim']
call assert_fails('let d = 1', 'E741:')
call assert_fails('let e = [2.2, "a"]', 'E741:')
endfunc
func Test_cannot_modify_existing_variable()
let i = 1
let f = 1.1
let s = 'vim'
let F = funcref('s:noop')
let l = [1, 2, 3]
let d = {'foo': 10}
if has('channel')
let j = test_null_job()
let c = test_null_channel()
endif
let b = v:true
let n = v:null
call assert_fails('const i = 1', 'E995:')
call assert_fails('const f = 1.1', 'E995:')
call assert_fails('const s = "vim"', 'E995:')
call assert_fails('const F = funcref("s:noop")', 'E995:')
call assert_fails('const l = [1, 2, 3]', 'E995:')
call assert_fails('const d = {"foo": 10}', 'E995:')
if has('channel')
call assert_fails('const j = test_null_job()', 'E995:')
call assert_fails('const c = test_null_channel()', 'E995:')
endif
call assert_fails('const b = v:true', 'E995:')
call assert_fails('const n = v:null', 'E995:')
call assert_fails('const [i, f, s] = [1, 1.1, "vim"]', 'E995:')
const i2 = 1
const f2 = 1.1
const s2 = 'vim'
const F2 = funcref('s:noop')
const l2 = [1, 2, 3]
const d2 = {'foo': 10}
if has('channel')
const j2 = test_null_job()
const c2 = test_null_channel()
endif
const b2 = v:true
const n2 = v:null
call assert_fails('const i2 = 1', 'E995:')
call assert_fails('const f2 = 1.1', 'E995:')
call assert_fails('const s2 = "vim"', 'E995:')
call assert_fails('const F2 = funcref("s:noop")', 'E995:')
call assert_fails('const l2 = [1, 2, 3]', 'E995:')
call assert_fails('const d2 = {"foo": 10}', 'E995:')
if has('channel')
call assert_fails('const j2 = test_null_job()', 'E995:')
call assert_fails('const c2 = test_null_channel()', 'E995:')
endif
call assert_fails('const b2 = v:true', 'E995:')
call assert_fails('const n2 = v:null', 'E995:')
call assert_fails('const [i2, f2, s2] = [1, 1.1, "vim"]', 'E995:')
endfunc
func Test_const_with_condition()
const x = 0
if 0 | const x = 1 | endif
call assert_equal(0, x)
endfunc
func Test_lockvar()
let x = 'hello'
lockvar x
call assert_fails('let x = "there"', 'E741')
if 0 | unlockvar x | endif
call assert_fails('let x = "there"', 'E741')
unlockvar x
let x = 'there'
if 0 | lockvar x | endif
let x = 'again'
let val = [1, 2, 3]
lockvar 0 val
let val[0] = 9
call assert_equal([9, 2, 3], val)
call add(val, 4)
call assert_equal([9, 2, 3, 4], val)
call assert_fails('let val = [4, 5, 6]', 'E1122:')
endfunc
func Test_const_with_index_access()
let l = [1, 2, 3]
call assert_fails('const l[0] = 4', 'E996:')
call assert_fails('const l[0:1] = [1, 2]', 'E996:')
let d = {'aaa': 0}
call assert_fails("const d['aaa'] = 4", 'E996:')
call assert_fails("const d.aaa = 4", 'E996:')
endfunc
func Test_const_with_compound_assign()
let i = 0
call assert_fails('const i += 4', 'E995:')
call assert_fails('const i -= 4', 'E995:')
call assert_fails('const i *= 4', 'E995:')
call assert_fails('const i /= 4', 'E995:')
call assert_fails('const i %= 4', 'E995:')
let s = 'a'
call assert_fails('const s .= "b"', 'E995:')
let [a, b, c] = [1, 2, 3]
call assert_fails('const [a, b, c] += [4, 5, 6]', 'E995:')
let [d; e] = [1, 2, 3]
call assert_fails('const [d; e] += [4, 5, 6]', 'E995:')
endfunc
func Test_const_with_special_variables()
call assert_fails('const $FOO = "hello"', 'E996:')
call assert_fails('const @a = "hello"', 'E996:')
call assert_fails('const &filetype = "vim"', 'E996:')
call assert_fails('const &l:filetype = "vim"', 'E996:')
call assert_fails('const &g:encoding = "utf-8"', 'E996:')
call assert_fails('const [a, $CONST_FOO] = [369, "abc"]', 'E996:')
call assert_equal(369, a)
call assert_equal(v:null, getenv("CONST_FOO"))
call assert_fails('const [b; $CONST_FOO] = [246, 2, "abc"]', 'E996:')
call assert_equal(246, b)
call assert_equal(v:null, getenv("CONST_FOO"))
endfunc
func Test_const_with_eval_name()
let s = 'foo'
" eval name with :const should work
const abc_{s} = 1
const {s}{s} = 1
let s2 = 'abc_foo'
call assert_fails('const {s2} = "bar"', 'E995:')
endfunc
func Test_lock_depth_is_2()
" Modify list - error when changing item or adding/removing items
const l = [1, 2, [3, 4]]
call assert_fails('let l[0] = 42', 'E741:')
call assert_fails('let l[2][0] = 42', 'E741:')
call assert_fails('call add(l, 4)', 'E741:')
call assert_fails('unlet l[1]', 'E741:')
" Modify blob - error when changing
const b = 0z001122
call assert_fails('let b[0] = 42', 'E741:')
" Modify dict - error when changing item or adding/removing items
const d = {'foo': 10}
call assert_fails("let d['foo'] = 'hello'", 'E741:')
call assert_fails("let d.foo = 'hello'", 'E741:')
call assert_fails("let d['bar'] = 'hello'", 'E741:')
call assert_fails("unlet d['foo']", 'E741:')
" Modifying list or dict item contents is OK.
let lvar = ['a', 'b']
let bvar = 0z1122
const l2 = [0, lvar, bvar]
let l2[1][0] = 'c'
let l2[2][1] = 0x33
call assert_equal([0, ['c', 'b'], 0z1133], l2)
const d2 = #{a: 0, b: lvar, c: 4}
let d2.b[1] = 'd'
endfunc
" vim: shiftwidth=2 sts=2 expandtab
|
