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patch 8.2.1396: Vim9: no error for unexpectedly returning a value

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Problem:    Vim9: no error for unexpectedly returning a value.
Solution:   Only set the return type for lambda's.  Make using function type
            in a function reference work.
This commit is contained in:
Bram Moolenaar
2020-08-08 16:47:30 +02:00
parent 98b4f145eb
commit 5a849da57c
3 changed files with 56 additions and 14 deletions
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42
src/testdir/test_vim9_func.vim
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@@ -503,16 +503,48 @@ def Test_error_in_nested_function()
enddef
def Test_return_type_wrong()
CheckScriptFailure(['def Func(): number', 'return "a"', 'enddef', 'defcompile'], 'expected number but got string')
CheckScriptFailure(['def Func(): string', 'return 1', 'enddef', 'defcompile'], 'expected string but got number')
CheckScriptFailure(['def Func(): void', 'return "a"', 'enddef', 'defcompile'], 'E1096: Returning a value in a function without a return type')
CheckScriptFailure(['def Func()', 'return "a"', 'enddef', 'defcompile'], 'E1096: Returning a value in a function without a return type')
CheckScriptFailure([
'def Func(): number',
'return "a"',
'enddef',
'defcompile'], 'expected number but got string')
CheckScriptFailure([
'def Func(): string',
'return 1',
'enddef',
'defcompile'], 'expected string but got number')
CheckScriptFailure([
'def Func(): void',
'return "a"',
'enddef',
'defcompile'],
'E1096: Returning a value in a function without a return type')
CheckScriptFailure([
'def Func()',
'return "a"',
'enddef',
'defcompile'],
'E1096: Returning a value in a function without a return type')
CheckScriptFailure(['def Func(): number', 'return', 'enddef', 'defcompile'], 'E1003:')
CheckScriptFailure([
'def Func(): number',
'return',
'enddef',
'defcompile'], 'E1003:')
CheckScriptFailure(['def Func(): list', 'return []', 'enddef'], 'E1008:')
CheckScriptFailure(['def Func(): dict', 'return {}', 'enddef'], 'E1008:')
CheckScriptFailure(['def Func()', 'return 1'], 'E1057:')
CheckScriptFailure([
'vim9script',
'def FuncB()',
' return 123',
'enddef',
'def FuncA()',
' FuncB()',
'enddef',
'defcompile'], 'E1096:')
enddef
def Test_arg_type_wrong()