Adding upstream version 2:9.1.0016.upstream/2%9.1.0016

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 335 insertions, 0 deletions

diff --git a/src/testdir/test_const.vim b/src/testdir/test_const.vim
new file mode 100644
index 0000000..2b79f42
--- /dev/null
+++ b/src/testdir/test_const.vim
@@ -0,0 +1,335 @@
+" 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
+    const bl = 0zC0FFEE
+    const here =<< trim EOS
+      hello
+    EOS
+
+    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_true(exists('bl'))
+    call assert_true(exists('here'))
+
+    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:')
+    call assert_fails('let bl = 0zC0FFEE', 'E741:')
+    call assert_fails('let here = "xxx"', '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
+    unlet bl
+    unlet here
+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
+    const l:bl = 0zC0FFEE
+    const l:here =<< trim EOS
+      hello
+    EOS
+
+    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:')
+    call assert_fails('let l:bl = 0zC0FFEE', 'E741:')
+    call assert_fails('let l:here = "xxx"', '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
+    unlet l:bl
+    unlet l:here
+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
+    let bl = 0zC0FFEE
+
+    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 bl = 0zC0FFEE', '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
+    const bl2 = 0zC0FFEE
+
+    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 bl2 = 0zC0FFEE', '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:')
+
+  let l =<< trim END
+    let d = {}
+    lockvar d
+    func d.fn()
+      return 1
+    endfunc
+  END
+  let @a = l->join("\n")
+  call assert_fails('exe @a', 'E741:')
+
+  let l =<< trim END
+    let d = {}
+    let d.fn = function("min")
+    lockvar d.fn
+    func! d.fn()
+      return 1
+    endfunc
+  END
+  let @a = l->join("\n")
+  call assert_fails('exe @a', 'E741:')
+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