fix(diagnostic): resolve nil opts tables

gpanders · gpanders · commit fc8af96888f7 · 2022-01-11T16:39:15.000-07:00
In functions which allow opts to be optional, ensure that the value
actually resolves to a non-nil value.
diff --git a/runtime/lua/vim/diagnostic.lua b/runtime/lua/vim/diagnostic.lua
@@ -823,6 +823,7 @@ M.handlers.signs = {
     }
 
     bufnr = get_bufnr(bufnr)
+    opts = opts or {}
 
     if opts.signs and opts.signs.severity then
       diagnostics = filter_by_severity(opts.signs.severity, diagnostics)
@@ -890,6 +891,7 @@ M.handlers.underline = {
     }
 
     bufnr = get_bufnr(bufnr)
+    opts = opts or {}
 
     if opts.underline and opts.underline.severity then
       diagnostics = filter_by_severity(opts.underline.severity, diagnostics)
@@ -942,6 +944,7 @@ M.handlers.virtual_text = {
     }
 
     bufnr = get_bufnr(bufnr)
+    opts = opts or {}
 
     local severity
     if opts.virtual_text then

Original file line number	Diff line number	Diff line change
`@@ -823,6 +823,7 @@ M.handlers.signs = {`
`823`	`823`	`}`
`824`	`824`
`825`	`825`	`bufnr = get_bufnr(bufnr)`
	`826`	`+ opts = opts or {}`
`826`	`827`
`827`	`828`	`if opts.signs and opts.signs.severity then`
`828`	`829`	`diagnostics = filter_by_severity(opts.signs.severity, diagnostics)`
`@@ -890,6 +891,7 @@ M.handlers.underline = {`
`890`	`891`	`}`
`891`	`892`
`892`	`893`	`bufnr = get_bufnr(bufnr)`
	`894`	`+ opts = opts or {}`
`893`	`895`
`894`	`896`	`if opts.underline and opts.underline.severity then`
`895`	`897`	`diagnostics = filter_by_severity(opts.underline.severity, diagnostics)`
`@@ -942,6 +944,7 @@ M.handlers.virtual_text = {`
`942`	`944`	`}`
`943`	`945`
`944`	`946`	`bufnr = get_bufnr(bufnr)`
	`947`	`+ opts = opts or {}`
`945`	`948`
`946`	`949`	`local severity`
`947`	`950`	`if opts.virtual_text then`