feat(highlight): support combined diff highlighting
Problem: Combined diffs (`pw > 1`) had no DiffsClear on headers or `@@@`, no per-char prefix coloring, native TS junk on body prefixes, and `force_high_priority` flattened all diff captures to p199 making `@punctuation.special` (cyan) win over `@diff.minus`/`@diff.plus` (red/green) on `---`/`+++` lines. The `index` keyword and result hash after `..` were also uncolored. Solution: Extend `qw > 0` guards to `qw > 0 or pw > 1` for headers, `@@@`, and body prefixes. Add per-char `@diff.plus` / `@diff.minus` at p199 on body prefix columns. Apply `@attribute.diff` on `@@@` lines. Preserve relative priority offsets in `highlight_treesitter` via `priorities.syntax + meta_prio - 100`. Add manual `@keyword.diff` and `@constant.diff` captures on combined `index` lines.
This commit is contained in:
parent
bb87ae279b
commit
d2921c6fdd
2 changed files with 508 additions and 8 deletions
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@ -74,6 +74,7 @@ end
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---@param col_offset integer
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---@param covered_lines? table<integer, true>
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---@param priorities diffs.PrioritiesConfig
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---@param force_high_priority? boolean
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---@return integer
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local function highlight_treesitter(
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bufnr,
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@ -83,7 +84,8 @@ local function highlight_treesitter(
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line_map,
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col_offset,
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covered_lines,
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priorities
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priorities,
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force_high_priority
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)
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local code = table.concat(code_lines, '\n')
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if code == '' then
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@ -123,8 +125,9 @@ local function highlight_treesitter(
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local buf_sc = sc + col_offset
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local buf_ec = ec + col_offset
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local meta_prio = tonumber(metadata.priority) or 100
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local priority = tree_lang == 'diff'
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and (col_offset > 0 and priorities.syntax or (tonumber(metadata.priority) or 100))
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and ((col_offset > 0 or force_high_priority) and (priorities.syntax + meta_prio - 100) or meta_prio)
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or priorities.syntax
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pcall(vim.api.nvim_buf_set_extmark, bufnr, ns, buf_sr, buf_sc, {
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@ -367,14 +370,14 @@ function M.highlight_hunk(bufnr, ns, hunk, opts)
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header_map[i] = hunk.header_start_line - 1 + i
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end
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extmark_count = extmark_count
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+ highlight_treesitter(bufnr, ns, hunk.header_lines, 'diff', header_map, qw, nil, p)
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+ highlight_treesitter(bufnr, ns, hunk.header_lines, 'diff', header_map, qw, nil, p, qw > 0 or pw > 1)
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end
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local at_raw_line
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if qw > 0 and opts.highlights.treesitter.enabled then
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if (qw > 0 or pw > 1) and opts.highlights.treesitter.enabled then
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local at_buf_line = hunk.start_line - 1
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at_raw_line = vim.api.nvim_buf_get_lines(bufnr, at_buf_line, at_buf_line + 1, false)[1]
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if at_raw_line then
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if qw > 0 and at_raw_line then
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local at_logical = at_raw_line:sub(qw + 1)
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local at_map = { [0] = at_buf_line }
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extmark_count = extmark_count
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@ -417,7 +420,7 @@ function M.highlight_hunk(bufnr, ns, hunk, opts)
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end
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if
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qw > 0
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(qw > 0 or pw > 1)
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and hunk.header_start_line
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and hunk.header_lines
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and #hunk.header_lines > 0
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@ -430,16 +433,46 @@ function M.highlight_hunk(bufnr, ns, hunk, opts)
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hl_group = 'DiffsClear',
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priority = p.clear,
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})
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if pw > 1 then
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local hline = hunk.header_lines[i + 1]
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if hline:match('^index ') then
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pcall(vim.api.nvim_buf_set_extmark, bufnr, ns, buf_line, qw, {
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end_col = qw + 5,
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hl_group = '@keyword.diff',
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priority = p.syntax,
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})
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local dot_pos = hline:find('%.%.', 1, false)
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if dot_pos then
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local rest = hline:sub(dot_pos + 2)
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local hash = rest:match('^(%x+)')
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if hash then
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pcall(vim.api.nvim_buf_set_extmark, bufnr, ns, buf_line, qw + dot_pos + 1, {
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end_col = qw + dot_pos + 1 + #hash,
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hl_group = '@constant.diff',
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priority = p.syntax,
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})
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end
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end
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end
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end
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end
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end
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if qw > 0 and at_raw_line then
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if (qw > 0 or pw > 1) and at_raw_line then
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local at_buf_line = hunk.start_line - 1
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pcall(vim.api.nvim_buf_set_extmark, bufnr, ns, at_buf_line, 0, {
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end_col = #at_raw_line,
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hl_group = 'DiffsClear',
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priority = p.clear,
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})
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if pw > 1 and opts.highlights.treesitter.enabled then
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pcall(vim.api.nvim_buf_set_extmark, bufnr, ns, at_buf_line, qw, {
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end_col = #at_raw_line,
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hl_group = '@attribute.diff',
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priority = p.syntax,
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})
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end
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end
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if use_ts and hunk.header_context and hunk.header_context_col then
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@ -484,6 +517,25 @@ function M.highlight_hunk(bufnr, ns, hunk, opts)
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hl_group = 'DiffsClear',
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priority = p.clear,
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})
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elseif pw > 1 then
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pcall(vim.api.nvim_buf_set_extmark, bufnr, ns, buf_line, 0, {
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end_col = pw,
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hl_group = 'DiffsClear',
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priority = p.clear,
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})
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end
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if pw > 1 then
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for ci = 0, pw - 1 do
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local ch = line:sub(ci + 1, ci + 1)
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if ch == '+' or ch == '-' then
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pcall(vim.api.nvim_buf_set_extmark, bufnr, ns, buf_line, ci + qw, {
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end_col = ci + qw + 1,
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hl_group = ch == '+' and '@diff.plus' or '@diff.minus',
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priority = p.syntax,
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})
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end
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end
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end
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if line_len > pw and covered_lines[buf_line] then
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@ -1064,11 +1064,16 @@ describe('highlight', function()
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highlight.highlight_hunk(bufnr, ns, hunk, default_opts())
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local extmarks = get_extmarks(bufnr)
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local content_clear_count = 0
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for _, mark in ipairs(extmarks) do
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if mark[4] and mark[4].hl_group == 'DiffsClear' then
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assert.are.equal(2, mark[3])
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assert.is_true(mark[3] == 0 or mark[3] == 2, 'DiffsClear at unexpected col ' .. mark[3])
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if mark[3] == 2 then
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content_clear_count = content_clear_count + 1
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end
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end
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end
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assert.are.equal(2, content_clear_count)
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delete_buffer(bufnr)
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end)
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@ -1363,6 +1368,449 @@ describe('highlight', function()
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assert.are.equal(0, header_extmarks)
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delete_buffer(bufnr)
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end)
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it('does not apply DiffsClear to header lines for non-quoted diffs', function()
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local bufnr = create_buffer({
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'diff --git a/parser.lua b/parser.lua',
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'index 3e8afa0..018159c 100644',
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'--- a/parser.lua',
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'+++ b/parser.lua',
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'@@ -1,2 +1,3 @@',
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' local M = {}',
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'+local x = 1',
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})
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local hunk = {
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filename = 'parser.lua',
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lang = 'lua',
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start_line = 5,
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lines = { ' local M = {}', '+local x = 1' },
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header_start_line = 1,
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header_lines = {
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'diff --git a/parser.lua b/parser.lua',
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'index 3e8afa0..018159c 100644',
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'--- a/parser.lua',
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'+++ b/parser.lua',
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},
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}
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highlight.highlight_hunk(bufnr, ns, hunk, default_opts())
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local extmarks = get_extmarks(bufnr)
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for _, mark in ipairs(extmarks) do
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local d = mark[4]
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if d and d.hl_group == 'DiffsClear' and mark[3] == 0 and mark[2] < 4 then
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error('unexpected DiffsClear on header row ' .. mark[2] .. ' for non-quoted diff')
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end
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end
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delete_buffer(bufnr)
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end)
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it('preserves diff grammar treesitter on headers for non-quoted diffs', function()
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local bufnr = create_buffer({
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'diff --git a/parser.lua b/parser.lua',
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'--- a/parser.lua',
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'+++ b/parser.lua',
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'@@ -1,2 +1,3 @@',
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' local M = {}',
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'+local x = 1',
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})
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local hunk = {
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filename = 'parser.lua',
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lang = 'lua',
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start_line = 4,
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lines = { ' local M = {}', '+local x = 1' },
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header_start_line = 1,
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header_lines = {
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'diff --git a/parser.lua b/parser.lua',
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'--- a/parser.lua',
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'+++ b/parser.lua',
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},
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}
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highlight.highlight_hunk(bufnr, ns, hunk, default_opts())
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local extmarks = get_extmarks(bufnr)
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local header_ts_count = 0
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for _, mark in ipairs(extmarks) do
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local d = mark[4]
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if mark[2] < 3 and d and d.hl_group and d.hl_group:match('^@.*%.diff$') then
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header_ts_count = header_ts_count + 1
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end
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end
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assert.is_true(header_ts_count > 0, 'expected diff grammar treesitter on header lines')
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delete_buffer(bufnr)
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end)
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it('applies syntax extmarks to combined diff body lines', function()
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local bufnr = create_buffer({
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'@@@ -1,2 -1,2 +1,3 @@@',
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' local M = {}',
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'+ local x = 1',
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' -local y = 2',
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})
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local hunk = {
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filename = 'test.lua',
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lang = 'lua',
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prefix_width = 2,
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start_line = 1,
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lines = { ' local M = {}', '+ local x = 1', ' -local y = 2' },
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}
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highlight.highlight_hunk(bufnr, ns, hunk, default_opts())
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local extmarks = get_extmarks(bufnr)
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local syntax_on_body = 0
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for _, mark in ipairs(extmarks) do
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local d = mark[4]
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if mark[2] >= 1 and d and d.hl_group and d.hl_group:match('^@.*%.lua$') then
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syntax_on_body = syntax_on_body + 1
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end
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end
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assert.is_true(syntax_on_body > 0, 'expected lua treesitter syntax on combined diff body')
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delete_buffer(bufnr)
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end)
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it('applies DiffsClear and per-char diff fg to combined diff body prefixes', function()
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local bufnr = create_buffer({
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'@@@',
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' unchanged',
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'+ added',
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' -removed',
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'++both',
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})
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local hunk = {
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filename = 'test.lua',
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lang = 'lua',
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prefix_width = 2,
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start_line = 1,
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lines = { ' unchanged', '+ added', ' -removed', '++both' },
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}
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highlight.highlight_hunk(bufnr, ns, hunk, default_opts())
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local extmarks = get_extmarks(bufnr)
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local prefix_clears = {}
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local plus_marks = {}
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local minus_marks = {}
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for _, mark in ipairs(extmarks) do
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local d = mark[4]
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if mark[2] >= 1 and d then
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if d.hl_group == 'DiffsClear' and mark[3] == 0 and d.end_col == 2 then
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prefix_clears[mark[2]] = true
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end
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if d.hl_group == '@diff.plus' and d.priority == 199 then
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if not plus_marks[mark[2]] then
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plus_marks[mark[2]] = {}
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end
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table.insert(plus_marks[mark[2]], mark[3])
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end
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if d.hl_group == '@diff.minus' and d.priority == 199 then
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if not minus_marks[mark[2]] then
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minus_marks[mark[2]] = {}
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end
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table.insert(minus_marks[mark[2]], mark[3])
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end
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end
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end
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assert.is_true(prefix_clears[1] ~= nil, 'DiffsClear on context prefix')
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assert.is_true(prefix_clears[2] ~= nil, 'DiffsClear on add prefix')
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assert.is_true(prefix_clears[3] ~= nil, 'DiffsClear on del prefix')
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assert.is_true(prefix_clears[4] ~= nil, 'DiffsClear on both-add prefix')
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assert.is_true(plus_marks[2] ~= nil, '@diff.plus on + in "+ added"')
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assert.are.equal(0, plus_marks[2][1])
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assert.is_true(minus_marks[3] ~= nil, '@diff.minus on - in " -removed"')
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assert.are.equal(1, minus_marks[3][1])
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assert.is_true(plus_marks[4] ~= nil, '@diff.plus on ++ in "++both"')
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assert.are.equal(2, #plus_marks[4])
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assert.is_nil(plus_marks[1], 'no @diff.plus on context " unchanged"')
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assert.is_nil(minus_marks[1], 'no @diff.minus on context " unchanged"')
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delete_buffer(bufnr)
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end)
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it('applies DiffsClear to headers for combined diffs', function()
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local bufnr = create_buffer({
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'diff --combined lua/merge/target.lua',
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'index abc1234,def5678..ghi9012',
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'--- a/lua/merge/target.lua',
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'+++ b/lua/merge/target.lua',
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'@@@ -1,2 -1,2 +1,3 @@@',
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' local M = {}',
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'+ local x = 1',
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})
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local hunk = {
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filename = 'lua/merge/target.lua',
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lang = 'lua',
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prefix_width = 2,
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start_line = 5,
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lines = { ' local M = {}', '+ local x = 1' },
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header_start_line = 1,
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header_lines = {
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'diff --combined lua/merge/target.lua',
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'index abc1234,def5678..ghi9012',
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'--- a/lua/merge/target.lua',
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'+++ b/lua/merge/target.lua',
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},
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}
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highlight.highlight_hunk(bufnr, ns, hunk, default_opts())
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local extmarks = get_extmarks(bufnr)
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local clear_lines = {}
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for _, mark in ipairs(extmarks) do
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local d = mark[4]
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if d and d.hl_group == 'DiffsClear' and mark[3] == 0 and mark[2] < 4 then
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clear_lines[mark[2]] = true
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end
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end
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assert.is_true(clear_lines[0] ~= nil, 'DiffsClear on diff --combined line')
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assert.is_true(clear_lines[1] ~= nil, 'DiffsClear on index line')
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assert.is_true(clear_lines[2] ~= nil, 'DiffsClear on --- line')
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assert.is_true(clear_lines[3] ~= nil, 'DiffsClear on +++ line')
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delete_buffer(bufnr)
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end)
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it('applies @attribute.diff at syntax priority to @@@ line for combined diffs', function()
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local bufnr = create_buffer({
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'@@@ -1,2 -1,2 +1,3 @@@',
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' local M = {}',
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'+ local x = 1',
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})
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local hunk = {
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filename = 'test.lua',
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lang = 'lua',
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prefix_width = 2,
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start_line = 1,
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lines = { ' local M = {}', '+ local x = 1' },
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}
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highlight.highlight_hunk(bufnr, ns, hunk, default_opts())
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local extmarks = get_extmarks(bufnr)
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local has_attr = false
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for _, mark in ipairs(extmarks) do
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local d = mark[4]
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if mark[2] == 0 and d and d.hl_group == '@attribute.diff' and (d.priority or 0) >= 199 then
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has_attr = true
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end
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end
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assert.is_true(has_attr, '@attribute.diff at p>=199 on @@@ line')
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delete_buffer(bufnr)
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end)
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it('applies DiffsClear to @@@ line for combined diffs', function()
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local bufnr = create_buffer({
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'@@@ -1,2 -1,2 +1,3 @@@',
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' local M = {}',
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'+ local x = 1',
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})
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local hunk = {
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filename = 'test.lua',
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lang = 'lua',
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prefix_width = 2,
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start_line = 1,
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lines = { ' local M = {}', '+ local x = 1' },
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}
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highlight.highlight_hunk(bufnr, ns, hunk, default_opts())
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local extmarks = get_extmarks(bufnr)
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local has_at_clear = false
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for _, mark in ipairs(extmarks) do
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local d = mark[4]
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if mark[2] == 0 and d and d.hl_group == 'DiffsClear' and mark[3] == 0 then
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has_at_clear = true
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end
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end
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assert.is_true(has_at_clear, 'DiffsClear on @@@ line')
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delete_buffer(bufnr)
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end)
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it('applies header diff grammar at syntax priority for combined diffs', function()
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local bufnr = create_buffer({
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'diff --combined lua/merge/target.lua',
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'index abc1234,def5678..ghi9012',
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'--- a/lua/merge/target.lua',
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'+++ b/lua/merge/target.lua',
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'@@@ -1,2 -1,2 +1,3 @@@',
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' local M = {}',
|
||||
'+ local x = 1',
|
||||
})
|
||||
|
||||
local hunk = {
|
||||
filename = 'lua/merge/target.lua',
|
||||
lang = 'lua',
|
||||
prefix_width = 2,
|
||||
start_line = 5,
|
||||
lines = { ' local M = {}', '+ local x = 1' },
|
||||
header_start_line = 1,
|
||||
header_lines = {
|
||||
'diff --combined lua/merge/target.lua',
|
||||
'index abc1234,def5678..ghi9012',
|
||||
'--- a/lua/merge/target.lua',
|
||||
'+++ b/lua/merge/target.lua',
|
||||
},
|
||||
}
|
||||
|
||||
highlight.highlight_hunk(bufnr, ns, hunk, default_opts())
|
||||
|
||||
local extmarks = get_extmarks(bufnr)
|
||||
local high_prio_diff = {}
|
||||
for _, mark in ipairs(extmarks) do
|
||||
local d = mark[4]
|
||||
if mark[2] < 4 and d and d.hl_group and d.hl_group:match('^@.*%.diff$') and (d.priority or 0) >= 199 then
|
||||
high_prio_diff[mark[2]] = true
|
||||
end
|
||||
end
|
||||
assert.is_true(high_prio_diff[2] ~= nil, 'diff grammar at p>=199 on --- line')
|
||||
assert.is_true(high_prio_diff[3] ~= nil, 'diff grammar at p>=199 on +++ line')
|
||||
delete_buffer(bufnr)
|
||||
end)
|
||||
|
||||
it('@diff.minus wins over @punctuation.special on combined diff headers', function()
|
||||
local bufnr = create_buffer({
|
||||
'diff --combined lua/merge/target.lua',
|
||||
'index abc1234,def5678..ghi9012',
|
||||
'--- a/lua/merge/target.lua',
|
||||
'+++ b/lua/merge/target.lua',
|
||||
'@@@ -1,2 -1,2 +1,3 @@@',
|
||||
' local M = {}',
|
||||
'+ local x = 1',
|
||||
})
|
||||
|
||||
local hunk = {
|
||||
filename = 'lua/merge/target.lua',
|
||||
lang = 'lua',
|
||||
prefix_width = 2,
|
||||
start_line = 5,
|
||||
lines = { ' local M = {}', '+ local x = 1' },
|
||||
header_start_line = 1,
|
||||
header_lines = {
|
||||
'diff --combined lua/merge/target.lua',
|
||||
'index abc1234,def5678..ghi9012',
|
||||
'--- a/lua/merge/target.lua',
|
||||
'+++ b/lua/merge/target.lua',
|
||||
},
|
||||
}
|
||||
|
||||
highlight.highlight_hunk(bufnr, ns, hunk, default_opts())
|
||||
|
||||
local extmarks = get_extmarks(bufnr)
|
||||
local minus_prio, punct_prio_minus = 0, 0
|
||||
local plus_prio, punct_prio_plus = 0, 0
|
||||
for _, mark in ipairs(extmarks) do
|
||||
local d = mark[4]
|
||||
if d and d.hl_group then
|
||||
if mark[2] == 2 then
|
||||
if d.hl_group == '@diff.minus.diff' then
|
||||
minus_prio = math.max(minus_prio, d.priority or 0)
|
||||
elseif d.hl_group == '@punctuation.special.diff' then
|
||||
punct_prio_minus = math.max(punct_prio_minus, d.priority or 0)
|
||||
end
|
||||
elseif mark[2] == 3 then
|
||||
if d.hl_group == '@diff.plus.diff' then
|
||||
plus_prio = math.max(plus_prio, d.priority or 0)
|
||||
elseif d.hl_group == '@punctuation.special.diff' then
|
||||
punct_prio_plus = math.max(punct_prio_plus, d.priority or 0)
|
||||
end
|
||||
end
|
||||
end
|
||||
end
|
||||
assert.is_true(minus_prio > punct_prio_minus, '@diff.minus.diff should beat @punctuation.special.diff on --- line')
|
||||
assert.is_true(plus_prio > punct_prio_plus, '@diff.plus.diff should beat @punctuation.special.diff on +++ line')
|
||||
delete_buffer(bufnr)
|
||||
end)
|
||||
|
||||
it('applies @keyword.diff on index word for combined diffs', function()
|
||||
local bufnr = create_buffer({
|
||||
'diff --combined lua/merge/target.lua',
|
||||
'index abc1234,def5678..ghi9012',
|
||||
'--- a/lua/merge/target.lua',
|
||||
'+++ b/lua/merge/target.lua',
|
||||
'@@@ -1,2 -1,2 +1,3 @@@',
|
||||
' local M = {}',
|
||||
'+ local x = 1',
|
||||
})
|
||||
|
||||
local hunk = {
|
||||
filename = 'lua/merge/target.lua',
|
||||
lang = 'lua',
|
||||
prefix_width = 2,
|
||||
start_line = 5,
|
||||
lines = { ' local M = {}', '+ local x = 1' },
|
||||
header_start_line = 1,
|
||||
header_lines = {
|
||||
'diff --combined lua/merge/target.lua',
|
||||
'index abc1234,def5678..ghi9012',
|
||||
'--- a/lua/merge/target.lua',
|
||||
'+++ b/lua/merge/target.lua',
|
||||
},
|
||||
}
|
||||
|
||||
highlight.highlight_hunk(bufnr, ns, hunk, default_opts())
|
||||
|
||||
local extmarks = get_extmarks(bufnr)
|
||||
local has_keyword = false
|
||||
for _, mark in ipairs(extmarks) do
|
||||
local d = mark[4]
|
||||
if mark[2] == 1 and d and d.hl_group == '@keyword.diff' and mark[3] == 0 and (d.end_col or 0) == 5 then
|
||||
has_keyword = true
|
||||
end
|
||||
end
|
||||
assert.is_true(has_keyword, '@keyword.diff at row 1, cols 0-5')
|
||||
delete_buffer(bufnr)
|
||||
end)
|
||||
|
||||
it('applies @constant.diff on result hash for combined diffs', function()
|
||||
local bufnr = create_buffer({
|
||||
'diff --combined lua/merge/target.lua',
|
||||
'index abc1234,def5678..ghi9012',
|
||||
'--- a/lua/merge/target.lua',
|
||||
'+++ b/lua/merge/target.lua',
|
||||
'@@@ -1,2 -1,2 +1,3 @@@',
|
||||
' local M = {}',
|
||||
'+ local x = 1',
|
||||
})
|
||||
|
||||
local hunk = {
|
||||
filename = 'lua/merge/target.lua',
|
||||
lang = 'lua',
|
||||
prefix_width = 2,
|
||||
start_line = 5,
|
||||
lines = { ' local M = {}', '+ local x = 1' },
|
||||
header_start_line = 1,
|
||||
header_lines = {
|
||||
'diff --combined lua/merge/target.lua',
|
||||
'index abc1234,def5678..ghi9012',
|
||||
'--- a/lua/merge/target.lua',
|
||||
'+++ b/lua/merge/target.lua',
|
||||
},
|
||||
}
|
||||
|
||||
highlight.highlight_hunk(bufnr, ns, hunk, default_opts())
|
||||
|
||||
local extmarks = get_extmarks(bufnr)
|
||||
local has_constant = false
|
||||
for _, mark in ipairs(extmarks) do
|
||||
local d = mark[4]
|
||||
if mark[2] == 1 and d and d.hl_group == '@constant.diff' and (d.priority or 0) >= 199 then
|
||||
has_constant = true
|
||||
end
|
||||
end
|
||||
assert.is_true(has_constant, '@constant.diff on result hash')
|
||||
delete_buffer(bufnr)
|
||||
end)
|
||||
end)
|
||||
|
||||
describe('extmark priority', function()
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue