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annotate runtime/autoload/rust.vim @ 18486:9d887cad7315

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Added tag v8.1.2237 for changeset 63ee3c2b140fe1b4801389872a8e47aec19d028b
author Bram Moolenaar <Bram@vim.org>
date Thu, 31 Oct 2019 20:00:04 +0100
parents 146a1e213b60
children ef1c4fa8fc11
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
11229
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1 " Author: Kevin Ballard
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2 " Description: Helper functions for Rust commands/mappings
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3 " Last Modified: May 27, 2014
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4 " For bugs, patches and license go to https://github.com/rust-lang/rust.vim
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5
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6 " Jump {{{1
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7
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8 function! rust#Jump(mode, function) range
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9 let cnt = v:count1
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10 normal! m'
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11 if a:mode ==# 'v'
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12 norm! gv
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13 endif
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14 let foldenable = &foldenable
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15 set nofoldenable
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16 while cnt > 0
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17 execute "call <SID>Jump_" . a:function . "()"
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18 let cnt = cnt - 1
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19 endwhile
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20 let &foldenable = foldenable
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21 endfunction
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22
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23 function! s:Jump_Back()
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24 call search('{', 'b')
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25 keepjumps normal! w99[{
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26 endfunction
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27
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28 function! s:Jump_Forward()
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29 normal! j0
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30 call search('{', 'b')
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31 keepjumps normal! w99[{%
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32 call search('{')
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33 endfunction
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34
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35 " Run {{{1
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36
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37 function! rust#Run(bang, args)
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38 let args = s:ShellTokenize(a:args)
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39 if a:bang
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40 let idx = index(l:args, '--')
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41 if idx != -1
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42 let rustc_args = idx == 0 ? [] : l:args[:idx-1]
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43 let args = l:args[idx+1:]
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44 else
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45 let rustc_args = l:args
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46 let args = []
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47 endif
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48 else
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49 let rustc_args = []
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50 endif
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51
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52 let b:rust_last_rustc_args = l:rustc_args
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53 let b:rust_last_args = l:args
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54
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55 call s:WithPath(function("s:Run"), rustc_args, args)
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56 endfunction
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57
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58 function! s:Run(dict, rustc_args, args)
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59 let exepath = a:dict.tmpdir.'/'.fnamemodify(a:dict.path, ':t:r')
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60 if has('win32')
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61 let exepath .= '.exe'
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62 endif
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63
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64 let relpath = get(a:dict, 'tmpdir_relpath', a:dict.path)
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65 let rustc_args = [relpath, '-o', exepath] + a:rustc_args
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66
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67 let rustc = exists("g:rustc_path") ? g:rustc_path : "rustc"
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68
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69 let pwd = a:dict.istemp ? a:dict.tmpdir : ''
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70 let output = s:system(pwd, shellescape(rustc) . " " . join(map(rustc_args, 'shellescape(v:val)')))
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71 if output != ''
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72 echohl WarningMsg
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73 echo output
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74 echohl None
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75 endif
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76 if !v:shell_error
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77 exe '!' . shellescape(exepath) . " " . join(map(a:args, 'shellescape(v:val)'))
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78 endif
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79 endfunction
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80
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81 " Expand {{{1
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82
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83 function! rust#Expand(bang, args)
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84 let args = s:ShellTokenize(a:args)
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85 if a:bang && !empty(l:args)
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86 let pretty = remove(l:args, 0)
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87 else
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88 let pretty = "expanded"
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89 endif
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90 call s:WithPath(function("s:Expand"), pretty, args)
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91 endfunction
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92
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93 function! s:Expand(dict, pretty, args)
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94 try
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95 let rustc = exists("g:rustc_path") ? g:rustc_path : "rustc"
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96
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97 if a:pretty =~? '^\%(everybody_loops$\|flowgraph=\)'
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98 let flag = '--xpretty'
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99 else
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100 let flag = '--pretty'
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101 endif
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102 let relpath = get(a:dict, 'tmpdir_relpath', a:dict.path)
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103 let args = [relpath, '-Z', 'unstable-options', l:flag, a:pretty] + a:args
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104 let pwd = a:dict.istemp ? a:dict.tmpdir : ''
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105 let output = s:system(pwd, shellescape(rustc) . " " . join(map(args, 'shellescape(v:val)')))
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106 if v:shell_error
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107 echohl WarningMsg
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108 echo output
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109 echohl None
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110 else
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111 new
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112 silent put =output
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113 1
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114 d
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115 setl filetype=rust
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116 setl buftype=nofile
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117 setl bufhidden=hide
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118 setl noswapfile
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119 " give the buffer a nice name
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120 let suffix = 1
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121 let basename = fnamemodify(a:dict.path, ':t:r')
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122 while 1
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123 let bufname = basename
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124 if suffix > 1 | let bufname .= ' ('.suffix.')' | endif
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125 let bufname .= '.pretty.rs'
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126 if bufexists(bufname)
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127 let suffix += 1
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128 continue
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129 endif
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130 exe 'silent noautocmd keepalt file' fnameescape(bufname)
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131 break
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132 endwhile
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133 endif
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134 endtry
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135 endfunction
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136
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137 function! rust#CompleteExpand(lead, line, pos)
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138 if a:line[: a:pos-1] =~ '^RustExpand!\s*\S*$'
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139 " first argument and it has a !
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140 let list = ["normal", "expanded", "typed", "expanded,identified", "flowgraph=", "everybody_loops"]
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141 if !empty(a:lead)
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142 call filter(list, "v:val[:len(a:lead)-1] == a:lead")
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143 endif
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144 return list
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145 endif
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146
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147 return glob(escape(a:lead, "*?[") . '*', 0, 1)
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148 endfunction
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149
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150 " Emit {{{1
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151
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152 function! rust#Emit(type, args)
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153 let args = s:ShellTokenize(a:args)
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154 call s:WithPath(function("s:Emit"), a:type, args)
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155 endfunction
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156
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157 function! s:Emit(dict, type, args)
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158 try
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159 let output_path = a:dict.tmpdir.'/output'
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160
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161 let rustc = exists("g:rustc_path") ? g:rustc_path : "rustc"
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162
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163 let relpath = get(a:dict, 'tmpdir_relpath', a:dict.path)
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164 let args = [relpath, '--emit', a:type, '-o', output_path] + a:args
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165 let pwd = a:dict.istemp ? a:dict.tmpdir : ''
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166 let output = s:system(pwd, shellescape(rustc) . " " . join(map(args, 'shellescape(v:val)')))
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167 if output != ''
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168 echohl WarningMsg
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169 echo output
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170 echohl None
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171 endif
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172 if !v:shell_error
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173 new
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174 exe 'silent keepalt read' fnameescape(output_path)
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175 1
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176 d
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177 if a:type == "llvm-ir"
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178 setl filetype=llvm
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179 let extension = 'll'
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180 elseif a:type == "asm"
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181 setl filetype=asm
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182 let extension = 's'
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183 endif
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184 setl buftype=nofile
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185 setl bufhidden=hide
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186 setl noswapfile
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187 if exists('l:extension')
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188 " give the buffer a nice name
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189 let suffix = 1
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190 let basename = fnamemodify(a:dict.path, ':t:r')
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191 while 1
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192 let bufname = basename
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193 if suffix > 1 | let bufname .= ' ('.suffix.')' | endif
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194 let bufname .= '.'.extension
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195 if bufexists(bufname)
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196 let suffix += 1
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197 continue
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198 endif
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199 exe 'silent noautocmd keepalt file' fnameescape(bufname)
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200 break
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201 endwhile
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202 endif
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203 endif
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204 endtry
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205 endfunction
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206
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207 " Utility functions {{{1
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208
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209 " Invokes func(dict, ...)
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210 " Where {dict} is a dictionary with the following keys:
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211 " 'path' - The path to the file
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212 " 'tmpdir' - The path to a temporary directory that will be deleted when the
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213 " function returns.
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214 " 'istemp' - 1 if the path is a file inside of {dict.tmpdir} or 0 otherwise.
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215 " If {istemp} is 1 then an additional key is provided:
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216 " 'tmpdir_relpath' - The {path} relative to the {tmpdir}.
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217 "
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218 " {dict.path} may be a path to a file inside of {dict.tmpdir} or it may be the
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219 " existing path of the current buffer. If the path is inside of {dict.tmpdir}
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220 " then it is guaranteed to have a '.rs' extension.
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221 function! s:WithPath(func, ...)
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222 let buf = bufnr('')
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223 let saved = {}
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224 let dict = {}
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225 try
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226 let saved.write = &write
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227 set write
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228 let dict.path = expand('%')
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229 let pathisempty = empty(dict.path)
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230
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231 " Always create a tmpdir in case the wrapped command wants it
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232 let dict.tmpdir = tempname()
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233 call mkdir(dict.tmpdir)
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234
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235 if pathisempty || !saved.write
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236 let dict.istemp = 1
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237 " if we're doing this because of nowrite, preserve the filename
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238 if !pathisempty
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239 let filename = expand('%:t:r').".rs"
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240 else
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241 let filename = 'unnamed.rs'
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242 endif
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243 let dict.tmpdir_relpath = filename
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244 let dict.path = dict.tmpdir.'/'.filename
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245
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246 let saved.mod = &mod
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247 set nomod
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248
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249 silent exe 'keepalt write! ' . fnameescape(dict.path)
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250 if pathisempty
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251 silent keepalt 0file
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252 endif
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253 else
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254 let dict.istemp = 0
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255 update
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256 endif
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257
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258 call call(a:func, [dict] + a:000)
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259 finally
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260 if bufexists(buf)
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261 for [opt, value] in items(saved)
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262 silent call setbufvar(buf, '&'.opt, value)
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263 unlet value " avoid variable type mismatches
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264 endfor
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265 endif
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266 if has_key(dict, 'tmpdir') | silent call s:RmDir(dict.tmpdir) | endif
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267 endtry
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268 endfunction
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269
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270 function! rust#AppendCmdLine(text)
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271 call setcmdpos(getcmdpos())
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272 let cmd = getcmdline() . a:text
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273 return cmd
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274 endfunction
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275
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276 " Tokenize the string according to sh parsing rules
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277 function! s:ShellTokenize(text)
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278 " states:
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279 " 0: start of word
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280 " 1: unquoted
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281 " 2: unquoted backslash
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282 " 3: double-quote
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283 " 4: double-quoted backslash
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284 " 5: single-quote
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285 let l:state = 0
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286 let l:current = ''
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287 let l:args = []
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288 for c in split(a:text, '\zs')
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289 if l:state == 0 || l:state == 1 " unquoted
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290 if l:c ==# ' '
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291 if l:state == 0 | continue | endif
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292 call add(l:args, l:current)
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293 let l:current = ''
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294 let l:state = 0
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295 elseif l:c ==# '\'
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296 let l:state = 2
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297 elseif l:c ==# '"'
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298 let l:state = 3
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299 elseif l:c ==# "'"
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300 let l:state = 5
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301 else
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302 let l:current .= l:c
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303 let l:state = 1
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304 endif
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305 elseif l:state == 2 " unquoted backslash
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306 if l:c !=# "\n" " can it even be \n?
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307 let l:current .= l:c
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308 endif
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309 let l:state = 1
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310 elseif l:state == 3 " double-quote
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311 if l:c ==# '\'
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312 let l:state = 4
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313 elseif l:c ==# '"'
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314 let l:state = 1
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315 else
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316 let l:current .= l:c
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317 endif
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318 elseif l:state == 4 " double-quoted backslash
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319 if stridx('$`"\', l:c) >= 0
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320 let l:current .= l:c
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321 elseif l:c ==# "\n" " is this even possible?
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322 " skip it
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323 else
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324 let l:current .= '\'.l:c
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325 endif
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326 let l:state = 3
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327 elseif l:state == 5 " single-quoted
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328 if l:c == "'"
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329 let l:state = 1
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330 else
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331 let l:current .= l:c
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332 endif
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333 endif
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334 endfor
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335 if l:state != 0
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336 call add(l:args, l:current)
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337 endif
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338 return l:args
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339 endfunction
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340
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341 function! s:RmDir(path)
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342 " sanity check; make sure it's not empty, /, or $HOME
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343 if empty(a:path)
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344 echoerr 'Attempted to delete empty path'
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345 return 0
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346 elseif a:path == '/' || a:path == $HOME
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347 echoerr 'Attempted to delete protected path: ' . a:path
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348 return 0
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349 endif
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350 return system("rm -rf " . shellescape(a:path))
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351 endfunction
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352
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353 " Executes {cmd} with the cwd set to {pwd}, without changing Vim's cwd.
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354 " If {pwd} is the empty string then it doesn't change the cwd.
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355 function! s:system(pwd, cmd)
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356 let cmd = a:cmd
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357 if !empty(a:pwd)
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358 let cmd = 'cd ' . shellescape(a:pwd) . ' && ' . cmd
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359 endif
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360 return system(cmd)
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361 endfunction
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362
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363 " Playpen Support {{{1
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364 " Parts of gist.vim by Yasuhiro Matsumoto <mattn.jp@gmail.com> reused
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365 " gist.vim available under the BSD license, available at
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366 " http://github.com/mattn/gist-vim
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367 function! s:has_webapi()
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368 if !exists("*webapi#http#post")
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369 try
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370 call webapi#http#post()
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371 catch
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372 endtry
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373 endif
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374 return exists("*webapi#http#post")
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375 endfunction
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376
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377 function! rust#Play(count, line1, line2, ...) abort
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378 redraw
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379
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380 let l:rust_playpen_url = get(g:, 'rust_playpen_url', 'https://play.rust-lang.org/')
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381 let l:rust_shortener_url = get(g:, 'rust_shortener_url', 'https://is.gd/')
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382
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383 if !s:has_webapi()
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384 echohl ErrorMsg | echomsg ':RustPlay depends on webapi.vim (https://github.com/mattn/webapi-vim)' | echohl None
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385 return
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386 endif
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387
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388 let bufname = bufname('%')
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389 if a:count < 1
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390 let content = join(getline(a:line1, a:line2), "\n")
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391 else
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392 let save_regcont = @"
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393 let save_regtype = getregtype('"')
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394 silent! normal! gvy
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395 let content = @"
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396 call setreg('"', save_regcont, save_regtype)
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397 endif
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398
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399 let body = l:rust_playpen_url."?code=".webapi#http#encodeURI(content)
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400
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401 if strlen(body) > 5000
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402 echohl ErrorMsg | echomsg 'Buffer too large, max 5000 encoded characters ('.strlen(body).')' | echohl None
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403 return
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404 endif
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405
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406 let payload = "format=simple&url=".webapi#http#encodeURI(body)
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407 let res = webapi#http#post(l:rust_shortener_url.'create.php', payload, {})
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408 let url = res.content
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409
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410 redraw | echomsg 'Done: '.url
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411 endfunction
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412
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413 " }}}1
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414
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415 " vim: set noet sw=8 ts=8: