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Add ESM #189

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29d425f
Add ESM
tani Mar 20, 2022
194de27
Do not delete variables for strict mode
tani Mar 20, 2022
fe0f8d6
Use import instead of require
tani Mar 20, 2022
e74e83a
Update vimlparser.mjs
tani Mar 20, 2022
18c36ab
no default export
tani Mar 20, 2022
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9 changes: 8 additions & 1 deletion js/jscompiler.vim
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Original file line number Diff line number Diff line change
Expand Up @@ -386,7 +386,9 @@ endfunction

function s:JavascriptCompiler.compile_unlet(node)
let list = map(a:node.list, 'self.compile(v:val)')
call self.out('delete %s;', join(list, ', '))
"For strict mode of JavaScript, we prohibit to delete variables.
"call self.out('delete %s;', join(list, ', '))
call self.out('%s;', join(list, ', '))
endfunction

function s:JavascriptCompiler.compile_lockvar(node)
Expand Down Expand Up @@ -864,6 +866,11 @@ function! s:convert(in, out) abort
\ '}',
\ ]
call writefile(head + lines + tail, a:out)
let esmtail = [
\ 'export { VimLParser, StringReader, Compiler };',
\ ]
let esmhead = map(head, { _, line -> substitute(line, "var \\(\\w*\\) = require('\\(\\w*\\)')", 'import \1 from "\2"', 'g')})
call writefile(esmhead + lines + esmtail, substitute(a:out, '\.js', '\.mjs', ''))
catch
throw substitute(v:throwpoint, '\.\.\zs\d\+', '\=s:numtoname(submatch(0))', 'g') . "\n" . v:exception
endtry
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