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" Tests for the :let command.
func Test_let()
" Test to not autoload when assigning. It causes internal error.
set runtimepath+=./sautest
let Test104#numvar = function('tr')
call assert_equal("function('tr')", string(Test104#numvar))
let a = 1
let b = 2
let out = execute('let a b')
let s = "\na #1\nb #2"
call assert_equal(s, out)
let out = execute('let {0 == 1 ? "a" : "b"}')
let s = "\nb #2"
call assert_equal(s, out)
let out = execute('let {0 == 1 ? "a" : "b"} a')
let s = "\nb #2\na #1"
call assert_equal(s, out)
let out = execute('let a {0 == 1 ? "a" : "b"}')
let s = "\na #1\nb #2"
call assert_equal(s, out)
endfunc
func s:set_arg1(a) abort
let a:a = 1
endfunction
func s:set_arg2(a) abort
let a:b = 1
endfunction
func s:set_arg3(a) abort
let b = a:
let b['a'] = 1
endfunction
func s:set_arg4(a) abort
let b = a:
let b['a'] = 1
endfunction
func s:set_arg5(a) abort
let b = a:
let b['a'][0] = 1
endfunction
func s:set_arg6(a) abort
let a:a[0] = 1
endfunction
func s:set_arg7(a) abort
call extend(a:, {'a': 1})
endfunction
func s:set_arg8(a) abort
call extend(a:, {'b': 1})
endfunction
func s:set_arg9(a) abort
let a:['b'] = 1
endfunction
func s:set_arg10(a) abort
let b = a:
call extend(b, {'a': 1})
endfunction
func s:set_arg11(a) abort
let b = a:
call extend(b, {'b': 1})
endfunction
func s:set_arg12(a) abort
let b = a:
let b['b'] = 1
endfunction
func Test_let_arg_fail()
call assert_fails('call s:set_arg1(1)', 'E46:')
call assert_fails('call s:set_arg2(1)', 'E461:')
call assert_fails('call s:set_arg3(1)', 'E46:')
call assert_fails('call s:set_arg4(1)', 'E46:')
call assert_fails('call s:set_arg5(1)', 'E46:')
call s:set_arg6([0])
call assert_fails('call s:set_arg7(1)', 'E742:')
call assert_fails('call s:set_arg8(1)', 'E742:')
call assert_fails('call s:set_arg9(1)', 'E461:')
call assert_fails('call s:set_arg10(1)', 'E742:')
call assert_fails('call s:set_arg11(1)', 'E742:')
call assert_fails('call s:set_arg12(1)', 'E461:')
endfunction
func s:set_varg1(...) abort
let a:000 = []
endfunction
func s:set_varg2(...) abort
let a:000[0] = 1
endfunction
func s:set_varg3(...) abort
let a:000 += [1]
endfunction
func s:set_varg4(...) abort
call add(a:000, 1)
endfunction
func s:set_varg5(...) abort
let a:000[0][0] = 1
endfunction
func s:set_varg6(...) abort
let b = a:000
let b[0] = 1
endfunction
func s:set_varg7(...) abort
let b = a:000
let b += [1]
endfunction
func s:set_varg8(...) abort
let b = a:000
call add(b, 1)
endfunction
func s:set_varg9(...) abort
let b = a:000
let b[0][0] = 1
endfunction
func Test_let_varg_fail()
call assert_fails('call s:set_varg1(1)', 'E46:')
call assert_fails('call s:set_varg2(1)', 'E742:')
call assert_fails('call s:set_varg3(1)', 'E46:')
call assert_fails('call s:set_varg4(1)', 'E742:')
call s:set_varg5([0])
call assert_fails('call s:set_varg6(1)', 'E742:')
" call assert_fails('call s:set_varg7(1)', 'E46:')
call assert_fails('call s:set_varg8(1)', 'E742:')
call s:set_varg9([0])
endfunction
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