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fix(diagnostic): respect "if_many" source option for virtual text (#16697)

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The `prefix_source` function only evaluates the sources from the
diagnostics passed to it; however, because each namespace draws its own
virtual text, its diagnostics will never contain more than a single
source (by definition). This requires changing the semantics of what
"if_many" means from "multiple sources in a single 'batch' of
diagnostics" to "multiple sources of all diagnostics within a buffer".
This commit is contained in:
github-actions[bot] 2021-12-17 19:44:16 -07:00 committed by GitHub
parent 9dae939b1f
commit 060eeaa14c
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2 changed files with 40 additions and 27 deletions
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18
runtime/doc/diagnostic.txt
View File

@ -345,9 +345,12 @@ config({opts}, {namespace}) *vim.diagnostic.config()*
• severity: Only show virtual text for
diagnostics matching the given severity
|diagnostic-severity|
• source: (string) Include the diagnostic
source in virtual text. One of "always"
or "if_many".
• source: (boolean or string) Include the
diagnostic source in virtual text. Use
"if_many" to only show sources if there
is more than one diagnostic source in the
buffer. Otherwise, any truthy value means
to always show the diagnostic source.
• format: (function) A function that takes
a diagnostic as input and returns a
string. The return value is the text used
@ -606,9 +609,12 @@ open_float({opts}, {...}) *vim.diagnostic.open_float()*
is interpreted as a [text, hl_group] tuple.
Overrides the setting from
|vim.diagnostic.config()|.
• source: (string) Include the diagnostic source
in the message. One of "always" or "if_many".
Overrides the setting from
• source: (boolean or string) Include the
diagnostic source in the message. Use "if_many"
to only show sources if there is more than one
source of diagnostics in the buffer. Otherwise,
any truthy value means to always show the
diagnostic source. Overrides the setting from
|vim.diagnostic.config()|.
• format: (function) A function that takes a
diagnostic as input and returns a string. The

49
runtime/lua/vim/diagnostic.lua
View File

@ -91,23 +91,22 @@ local function filter_by_severity(severity, diagnostics)
end
---@private
local function prefix_source(source, diagnostics)
vim.validate { source = {source, function(v)
return v == "always" or v == "if_many"
end, "'always' or 'if_many'" } }
if source == "if_many" then
local sources = {}
for _, d in pairs(diagnostics) do
if d.source then
sources[d.source] = true
local function count_sources(bufnr)
local seen = {}
local count = 0
for _, namespace_diagnostics in pairs(diagnostic_cache[bufnr]) do
for _, diagnostic in ipairs(namespace_diagnostics) do
if diagnostic.source and not seen[diagnostic.source] then
seen[diagnostic.source] = true
count = count + 1
end
end
if #vim.tbl_keys(sources) <= 1 then
return diagnostics
end
end
return count
end
---@private
local function prefix_source(diagnostics)
return vim.tbl_map(function(d)
if not d.source then
return d
@ -557,8 +556,10 @@ end
--- - virtual_text: (default true) Use virtual text for diagnostics. Options:
--- * severity: Only show virtual text for diagnostics matching the given
--- severity |diagnostic-severity|
--- * source: (string) Include the diagnostic source in virtual
--- text. One of "always" or "if_many".
--- * source: (boolean or string) Include the diagnostic source in virtual
--- text. Use "if_many" to only show sources if there is more than
--- one diagnostic source in the buffer. Otherwise, any truthy value
--- means to always show the diagnostic source.
--- * format: (function) A function that takes a diagnostic as input and
--- returns a string. The return value is the text used to display
--- the diagnostic. Example:
@ -922,8 +923,11 @@ M.handlers.virtual_text = {
if opts.virtual_text.format then
diagnostics = reformat_diagnostics(opts.virtual_text.format, diagnostics)
end
if opts.virtual_text.source then
diagnostics = prefix_source(opts.virtual_text.source, diagnostics)
if
opts.virtual_text.source
and (opts.virtual_text.source ~= "if_many" or count_sources(bufnr) > 1)
then
diagnostics = prefix_source(diagnostics)
end
if opts.virtual_text.severity then
severity = opts.virtual_text.severity
@ -1148,8 +1152,11 @@ end
--- - header: (string or table) String to use as the header for the floating window. If a
--- table, it is interpreted as a [text, hl_group] tuple. Overrides the setting
--- from |vim.diagnostic.config()|.
--- - source: (string) Include the diagnostic source in the message. One of "always" or
--- "if_many". Overrides the setting from |vim.diagnostic.config()|.
--- - source: (boolean or string) Include the diagnostic source in the message.
--- Use "if_many" to only show sources if there is more than one source of
--- diagnostics in the buffer. Otherwise, any truthy value means to always show
--- the diagnostic source. Overrides the setting from
--- |vim.diagnostic.config()|.
--- - format: (function) A function that takes a diagnostic as input and returns a
--- string. The return value is the text used to display the diagnostic.
--- Overrides the setting from |vim.diagnostic.config()|.
@ -1261,8 +1268,8 @@ function M.open_float(opts, ...)
diagnostics = reformat_diagnostics(opts.format, diagnostics)
end
if opts.source then
diagnostics = prefix_source(opts.source, diagnostics)
if opts.source and (opts.source ~= "if_many" or count_sources(bufnr) > 1) then
diagnostics = prefix_source(diagnostics)
end
local prefix_opt = if_nil(opts.prefix, (scope == "cursor" and #diagnostics <= 1) and "" or function(_, i)