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fix(highlight): allow globals to be cleared

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- and reduce heap allocations

Fixes #17420
This commit is contained in:
Lewis Russell
2022-02-15 23:40:06 +00:00
parent 238b944e58
commit 876aaf2003
3 changed files with 44 additions and 14 deletions
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22
test/functional/api/highlight_spec.lua
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@@ -276,4 +276,26 @@ describe("API: set highlight", function()
eq('Test_hl3 xxx guifg=bLue guibg=reD',
exec_capture('highlight Test_hl3'))
end)
it ("can modify a highlight in the global namespace", function()
meths.set_hl(0, 'Test_hl3', { bg = 'red', fg = 'blue'})
eq('Test_hl3 xxx guifg=blue guibg=red',
exec_capture('highlight Test_hl3'))
meths.set_hl(0, 'Test_hl3', { bg = 'red' })
eq('Test_hl3 xxx guibg=red',
exec_capture('highlight Test_hl3'))
meths.set_hl(0, 'Test_hl3', { ctermbg = 9, ctermfg = 12})
eq('Test_hl3 xxx ctermfg=12 ctermbg=9',
exec_capture('highlight Test_hl3'))
meths.set_hl(0, 'Test_hl3', { ctermbg = 9 })
eq('Test_hl3 xxx ctermbg=9',
exec_capture('highlight Test_hl3'))
meths.set_hl(0, 'Test_hl3', {})
eq('Test_hl3 xxx cleared',
exec_capture('highlight Test_hl3'))
end)
end)