Send diagnostics along with a code actions request (#90)

Store the original LSP representation of a diagnostic along with the internal representation and add a method to find all of the original diagnostics for a given line.

Include all diagnostics for the current line along with code actions requests.

CHANGELOG.md

@@ -14,6 +14,7 @@
 - Enable incremental sync by default.
 - Enable apply edit by default.
 - Improve the preview height for hover text which has few lines but they wrap.
+- Bug Fix: Include diagnostics for the current line with code actions requests.
 
 # 0.2.10
 

autoload/lsc/diagnostics.vim

@@ -22,7 +22,8 @@ function! s:Convert(diagnostic) abort
     let message = message.' ['.a:diagnostic.code.']'
   endif
   return {'group': group, 'message': message, 'type': type,
-      \ 'ranges': lsc#convert#rangeToHighlights(a:diagnostic.range)}
+      \ 'ranges': lsc#convert#rangeToHighlights(a:diagnostic.range),
+      \ 'lsp': a:diagnostic}
 endfunction
 
 function! lsc#diagnostics#clean(filetype) abort
@@ -235,3 +236,15 @@ function! lsc#diagnostics#underCursor() abort
   endfor
   return closest_diagnostic
 endfunction
+
+" Returns the original LSP representation of diagnostics on a line.
+function! lsc#diagnostics#forLine(file, line) abort
+  let l:result = []
+  let l:file_diagnostics = lsc#diagnostics#forFile(a:file)
+  if has_key(l:file_diagnostics, a:line)
+    for l:diagnostic in l:file_diagnostics[a:line]
+      call add(l:result, l:diagnostic.lsp)
+    endfor
+  endif
+  return l:result
+endfunction

autoload/lsc/edit.vim

@@ -31,7 +31,8 @@ function! s:TextDocumentRangeParams() abort
       \ 'range': {
       \   'start': {'line': line('.') - 1, 'character': col('.') - 1},
       \   'end': {'line': line('.') - 1, 'character': col('.')}},
-      \ 'context': {'diagnostics': []}
+      \ 'context': {'diagnostics':
+      \    lsc#diagnostics#forLine(expand('%:p'), line('.'))}
       \}
 endfunction