Mercurial > vim
annotate src/testdir/test_tagfunc.vim @ 26518:13ba00ef7687 v8.2.3788
patch 8.2.3788: lambda for option that is a function may be freed
Commit: https://github.com/vim/vim/commit/6ae8fae8696623b527c7fb22567f6a3705b2f0dd
Author: Yegappan Lakshmanan <yegappan@yahoo.com>
Date: Sun Dec 12 16:26:44 2021 +0000
patch 8.2.3788: lambda for option that is a function may be freed
Problem: Lambda for option that is a function may be garbage collected.
Solution: Set a reference in the funcref. (Yegappan Lakshmanan,
closes #9330)
author | Bram Moolenaar <Bram@vim.org> |
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date | Sun, 12 Dec 2021 17:30:04 +0100 |
parents | 7eaf61a67d18 |
children | 33d680d372aa |
rev | line source |
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1 " Test 'tagfunc' |
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2 |
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3 source vim9.vim |
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4 |
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5 func TagFunc(pat, flag, info) |
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6 let g:tagfunc_args = [a:pat, a:flag, a:info] |
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7 let tags = [] |
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8 for num in range(1,10) |
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9 let tags += [{ |
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10 \ 'cmd': '2', 'name': 'nothing'.num, 'kind': 'm', |
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11 \ 'filename': 'Xfile1', 'user_data': 'somedata'.num, |
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12 \}] |
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13 endfor |
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14 return tags |
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15 endfunc |
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16 |
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17 func Test_tagfunc() |
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18 set tagfunc=TagFunc |
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19 new Xfile1 |
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20 call setline(1, ['empty', 'one()', 'empty']) |
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21 write |
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22 |
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23 call assert_equal({'cmd': '2', 'static': 0, |
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24 \ 'name': 'nothing2', 'user_data': 'somedata2', |
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25 \ 'kind': 'm', 'filename': 'Xfile1'}, taglist('.')[1]) |
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26 |
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27 call settagstack(win_getid(), {'items': []}) |
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28 |
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29 tag arbitrary |
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30 call assert_equal('arbitrary', g:tagfunc_args[0]) |
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31 call assert_equal('', g:tagfunc_args[1]) |
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32 call assert_equal('somedata1', gettagstack().items[0].user_data) |
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33 5tag arbitrary |
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34 call assert_equal('arbitrary', g:tagfunc_args[0]) |
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35 call assert_equal('', g:tagfunc_args[1]) |
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36 call assert_equal('somedata5', gettagstack().items[1].user_data) |
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37 pop |
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38 tag |
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39 call assert_equal('arbitrary', g:tagfunc_args[0]) |
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40 call assert_equal('', g:tagfunc_args[1]) |
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41 call assert_equal('somedata5', gettagstack().items[1].user_data) |
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42 |
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43 let g:tagfunc_args=[] |
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44 execute "normal! \<c-]>" |
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45 call assert_equal('one', g:tagfunc_args[0]) |
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46 call assert_equal('c', g:tagfunc_args[1]) |
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47 |
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48 let g:tagfunc_args=[] |
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49 execute "tag /foo$" |
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50 call assert_equal('foo$', g:tagfunc_args[0]) |
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51 call assert_equal('r', g:tagfunc_args[1]) |
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52 |
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53 set cpt=t |
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54 let g:tagfunc_args=[] |
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55 execute "normal! i\<c-n>\<c-y>" |
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56 call assert_equal('\<\k\k', g:tagfunc_args[0]) |
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57 call assert_equal('cir', g:tagfunc_args[1]) |
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58 call assert_equal('nothing1', getline('.')[0:7]) |
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59 |
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60 let g:tagfunc_args=[] |
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61 execute "normal! ono\<c-n>\<c-n>\<c-y>" |
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62 call assert_equal('\<no', g:tagfunc_args[0]) |
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63 call assert_equal('cir', g:tagfunc_args[1]) |
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64 call assert_equal('nothing2', getline('.')[0:7]) |
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65 |
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66 func BadTagFunc1(...) |
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67 return 0 |
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68 endfunc |
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69 func BadTagFunc2(...) |
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70 return [1] |
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71 endfunc |
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72 func BadTagFunc3(...) |
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73 return [{'name': 'foo'}] |
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74 endfunc |
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75 |
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76 for &tagfunc in ['BadTagFunc1', 'BadTagFunc2', 'BadTagFunc3'] |
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77 try |
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78 tag nothing |
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79 call assert_false(1, 'tag command should have failed') |
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80 catch |
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81 call assert_exception('E987:') |
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82 endtry |
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83 exe 'delf' &tagfunc |
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84 endfor |
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85 |
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86 func NullTagFunc(...) |
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87 return v:null |
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88 endfunc |
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89 set tags= tfu=NullTagFunc |
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90 call assert_fails('tag nothing', 'E433:') |
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91 delf NullTagFunc |
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92 |
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93 bwipe! |
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94 set tags& tfu& cpt& |
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95 call delete('Xfile1') |
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96 endfunc |
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97 |
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98 " Test for modifying the tag stack from a tag function and jumping to a tag |
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99 " from a tag function |
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100 func Test_tagfunc_settagstack() |
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101 func Mytagfunc1(pat, flags, info) |
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102 call settagstack(1, {'tagname' : 'mytag', 'from' : [0, 10, 1, 0]}) |
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103 return [{'name' : 'mytag', 'filename' : 'Xtest', 'cmd' : '1'}] |
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104 endfunc |
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105 set tagfunc=Mytagfunc1 |
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106 call writefile([''], 'Xtest') |
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107 call assert_fails('tag xyz', 'E986:') |
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108 |
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109 func Mytagfunc2(pat, flags, info) |
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110 tag test_tag |
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111 return [{'name' : 'mytag', 'filename' : 'Xtest', 'cmd' : '1'}] |
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112 endfunc |
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113 set tagfunc=Mytagfunc2 |
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114 call assert_fails('tag xyz', 'E986:') |
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115 |
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116 call delete('Xtest') |
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117 set tagfunc& |
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118 delfunc Mytagfunc1 |
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119 delfunc Mytagfunc2 |
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120 endfunc |
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121 |
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122 " Script local tagfunc callback function |
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123 func s:ScriptLocalTagFunc(pat, flags, info) |
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124 let g:ScriptLocalFuncArgs = [a:pat, a:flags, a:info] |
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125 return v:null |
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126 endfunc |
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127 |
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128 " Test for different ways of setting the 'tagfunc' option |
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129 func Test_tagfunc_callback() |
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130 func MytagFunc1(val, pat, flags, info) |
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131 let g:MytagFunc1_args = [a:val, a:pat, a:flags, a:info] |
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132 return v:null |
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133 endfunc |
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134 |
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135 let lines =<< trim END |
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136 #" Test for using a function() |
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137 set tagfunc=function('g:MytagFunc1',\ [10]) |
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138 new | only |
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139 LET g:MytagFunc1_args = [] |
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140 call assert_fails('tag a11', 'E433:') |
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141 call assert_equal([10, 'a11', '', {}], g:MytagFunc1_args) |
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142 |
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143 #" Using a funcref variable to set 'tagfunc' |
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144 VAR Fn = function('g:MytagFunc1', [11]) |
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145 LET &tagfunc = Fn |
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146 new | only |
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147 LET g:MytagFunc1_args = [] |
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148 call assert_fails('tag a12', 'E433:') |
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149 call assert_equal([11, 'a12', '', {}], g:MytagFunc1_args) |
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150 |
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151 #" Using a string(funcref_variable) to set 'tagfunc' |
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152 LET Fn = function('g:MytagFunc1', [12]) |
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153 LET &tagfunc = string(Fn) |
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154 new | only |
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155 LET g:MytagFunc1_args = [] |
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156 call assert_fails('tag a12', 'E433:') |
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157 call assert_equal([12, 'a12', '', {}], g:MytagFunc1_args) |
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158 |
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159 #" Test for using a funcref() |
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160 set tagfunc=funcref('g:MytagFunc1',\ [13]) |
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161 new | only |
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162 LET g:MytagFunc1_args = [] |
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163 call assert_fails('tag a13', 'E433:') |
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164 call assert_equal([13, 'a13', '', {}], g:MytagFunc1_args) |
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165 |
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166 #" Using a funcref variable to set 'tagfunc' |
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167 LET Fn = funcref('g:MytagFunc1', [14]) |
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168 LET &tagfunc = Fn |
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169 new | only |
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170 LET g:MytagFunc1_args = [] |
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171 call assert_fails('tag a14', 'E433:') |
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172 call assert_equal([14, 'a14', '', {}], g:MytagFunc1_args) |
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173 |
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174 #" Using a string(funcref_variable) to set 'tagfunc' |
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175 LET Fn = funcref('g:MytagFunc1', [15]) |
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176 LET &tagfunc = string(Fn) |
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177 new | only |
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178 LET g:MytagFunc1_args = [] |
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179 call assert_fails('tag a14', 'E433:') |
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180 call assert_equal([15, 'a14', '', {}], g:MytagFunc1_args) |
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181 |
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182 #" Test for using a lambda function |
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183 VAR optval = "LSTART a, b, c LMIDDLE MytagFunc1(16, a, b, c) LEND" |
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184 LET optval = substitute(optval, ' ', '\\ ', 'g') |
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185 exe "set tagfunc=" .. optval |
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186 new | only |
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187 LET g:MytagFunc1_args = [] |
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188 call assert_fails('tag a17', 'E433:') |
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189 call assert_equal([16, 'a17', '', {}], g:MytagFunc1_args) |
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190 |
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191 #" Set 'tagfunc' to a lambda expression |
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192 LET &tagfunc = LSTART a, b, c LMIDDLE MytagFunc1(17, a, b, c) LEND |
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193 new | only |
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194 LET g:MytagFunc1_args = [] |
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195 call assert_fails('tag a18', 'E433:') |
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196 call assert_equal([17, 'a18', '', {}], g:MytagFunc1_args) |
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197 |
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198 #" Set 'tagfunc' to a string(lambda expression) |
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199 LET &tagfunc = 'LSTART a, b, c LMIDDLE MytagFunc1(18, a, b, c) LEND' |
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200 new | only |
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201 LET g:MytagFunc1_args = [] |
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202 call assert_fails('tag a18', 'E433:') |
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203 call assert_equal([18, 'a18', '', {}], g:MytagFunc1_args) |
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204 |
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205 #" Set 'tagfunc' to a variable with a lambda expression |
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206 VAR Lambda = LSTART a, b, c LMIDDLE MytagFunc1(19, a, b, c) LEND |
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207 LET &tagfunc = Lambda |
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208 new | only |
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209 LET g:MytagFunc1_args = [] |
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210 call assert_fails("tag a19", "E433:") |
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211 call assert_equal([19, 'a19', '', {}], g:MytagFunc1_args) |
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212 |
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213 #" Set 'tagfunc' to a string(variable with a lambda expression) |
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214 LET Lambda = LSTART a, b, c LMIDDLE MytagFunc1(20, a, b, c) LEND |
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215 LET &tagfunc = string(Lambda) |
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216 new | only |
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217 LET g:MytagFunc1_args = [] |
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218 call assert_fails("tag a19", "E433:") |
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219 call assert_equal([20, 'a19', '', {}], g:MytagFunc1_args) |
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220 |
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221 #" Test for using a lambda function with incorrect return value |
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222 LET Lambda = LSTART a, b, c LMIDDLE strlen(a) LEND |
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223 LET &tagfunc = string(Lambda) |
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224 new | only |
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225 call assert_fails("tag a20", "E987:") |
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226 |
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227 #" Test for clearing the 'tagfunc' option |
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228 set tagfunc='' |
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229 set tagfunc& |
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230 call assert_fails("set tagfunc=function('abc')", "E700:") |
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231 call assert_fails("set tagfunc=funcref('abc')", "E700:") |
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232 |
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233 #" set 'tagfunc' to a non-existing function |
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234 LET &tagfunc = function('g:MytagFunc1', [21]) |
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235 call assert_fails("set tagfunc=function('NonExistingFunc')", 'E700:') |
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236 call assert_fails("LET &tagfunc = function('NonExistingFunc')", 'E700:') |
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237 call assert_fails("tag axb123", 'E426:') |
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238 END |
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239 call CheckLegacyAndVim9Success(lines) |
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240 |
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241 let &tagfunc = "{a -> 'abc'}" |
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242 call assert_fails("echo taglist('a')", "E987:") |
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243 |
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244 " Using Vim9 lambda expression in legacy context should fail |
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245 set tagfunc=(a,\ b,\ c)\ =>\ g:MytagFunc1(21,\ a,\ b,\ c) |
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246 new | only |
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247 let g:MytagFunc1_args = [] |
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248 call assert_fails("tag a17", "E117:") |
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249 call assert_equal([], g:MytagFunc1_args) |
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250 |
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251 " Test for using a script local function |
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252 set tagfunc=<SID>ScriptLocalTagFunc |
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253 new | only |
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254 let g:ScriptLocalFuncArgs = [] |
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255 call assert_fails('tag a15', 'E433:') |
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256 call assert_equal(['a15', '', {}], g:ScriptLocalFuncArgs) |
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257 |
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258 " Test for using a script local funcref variable |
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259 let Fn = function("s:ScriptLocalTagFunc") |
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260 let &tagfunc= Fn |
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261 new | only |
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262 let g:ScriptLocalFuncArgs = [] |
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263 call assert_fails('tag a16', 'E433:') |
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264 call assert_equal(['a16', '', {}], g:ScriptLocalFuncArgs) |
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265 |
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266 " Test for using a string(script local funcref variable) |
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267 let Fn = function("s:ScriptLocalTagFunc") |
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268 let &tagfunc= string(Fn) |
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269 new | only |
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270 let g:ScriptLocalFuncArgs = [] |
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271 call assert_fails('tag a16', 'E433:') |
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272 call assert_equal(['a16', '', {}], g:ScriptLocalFuncArgs) |
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273 |
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274 " set 'tagfunc' to a partial with dict. This used to cause a crash. |
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275 func SetTagFunc() |
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276 let params = {'tagfn': function('g:DictTagFunc')} |
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277 let &tagfunc = params.tagfn |
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278 endfunc |
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279 func g:DictTagFunc(_) dict |
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280 endfunc |
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281 call SetTagFunc() |
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282 new |
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283 call SetTagFunc() |
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284 bw |
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285 call test_garbagecollect_now() |
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286 new |
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287 set tagfunc= |
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288 wincmd w |
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289 set tagfunc= |
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290 :%bw! |
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291 delfunc g:DictTagFunc |
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292 delfunc SetTagFunc |
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293 |
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294 " Vim9 tests |
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295 let lines =<< trim END |
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296 vim9script |
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297 |
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298 # Test for using function() |
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299 def Vim9tagFunc(val: number, pat: string, flags: string, info: dict<any>): any |
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300 g:Vim9tagFuncArgs = [val, pat, flags, info] |
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301 return null |
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302 enddef |
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303 set tagfunc=function('Vim9tagFunc',\ [60]) |
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304 new | only |
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305 g:Vim9tagFuncArgs = [] |
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306 assert_fails('tag a10', 'E433:') |
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307 assert_equal([60, 'a10', '', {}], g:Vim9tagFuncArgs) |
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308 END |
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309 call CheckScriptSuccess(lines) |
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310 |
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311 " cleanup |
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312 delfunc MytagFunc1 |
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313 set tagfunc& |
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314 %bw! |
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315 endfunc |
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316 |
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317 " vim: shiftwidth=2 sts=2 expandtab |