mirror of
https://github.com/neovim/neovim.git
synced 2024-12-26 14:11:15 -07:00
95ab979fde
marktree.c was originally constructed as a "generic" datatype, to make the prototyping of its internal logic as simple as possible and also as the usecases for various kinds of extmarks/decorations was not yet decided. As a consequence of this, various extra indirections and allocations was needed to use marktree to implement extmarks (ns/id pairs) and decorations of different kinds (some which is just a single highlight id, other an allocated list of virtual text/lines) This change removes a lot of indirection, by making Marktree specialized for the usecase. In particular, the namespace id and mark id is stored directly, instead of the 64-bit global id particular to the Marktree struct. This removes the two maps needed to convert between global and per-ns ids. Also, "small" decorations are stored inline, i.e. those who doesn't refer to external heap memory anyway. That is highlights (with priority+flags) are stored inline, while virtual text, which anyway occurs a lot of heap allocations, do not. (previously a hack was used to elide heap allocations for highlights with standard prio+flags) TODO(bfredl): the functionaltest-lua CI version of gcc is having severe issues with uint16_t bitfields, so splitting up compound assignments and redundant casts are needed. Clean this up once we switch to a working compiler version.
220 lines
6.4 KiB
Lua
220 lines
6.4 KiB
Lua
local helpers = require("test.unit.helpers")(after_each)
|
|
local itp = helpers.gen_itp(it)
|
|
|
|
local ffi = helpers.ffi
|
|
local eq = helpers.eq
|
|
local ok = helpers.ok
|
|
|
|
local lib = helpers.cimport("./src/nvim/marktree.h")
|
|
|
|
local function tablelength(t)
|
|
local count = 0
|
|
for _ in pairs(t) do count = count + 1 end
|
|
return count
|
|
end
|
|
|
|
local function pos_leq(a, b)
|
|
return a[1] < b[1] or (a[1] == b[1] and a[2] <= b[2])
|
|
end
|
|
|
|
-- Checks that shadow and tree is consistent, and optionally
|
|
-- return the order
|
|
local function shadoworder(tree, shadow, iter, giveorder)
|
|
ok(iter ~= nil)
|
|
local status = lib.marktree_itr_first(tree, iter)
|
|
local count = 0
|
|
local pos2id, id2pos = {}, {}
|
|
local last
|
|
if not status and next(shadow) == nil then
|
|
return pos2id, id2pos
|
|
end
|
|
repeat
|
|
local mark = lib.marktree_itr_current(iter)
|
|
local id = tonumber(mark.id)
|
|
local spos = shadow[id]
|
|
if (mark.pos.row ~= spos[1] or mark.pos.col ~= spos[2]) then
|
|
error("invalid pos for "..id..":("..mark.pos.row..", "..mark.pos.col..") instead of ("..spos[1]..", "..spos[2]..")")
|
|
end
|
|
if lib.mt_right_test(mark) ~= spos[3] then
|
|
error("invalid gravity for "..id..":("..mark.pos.row..", "..mark.pos.col..")")
|
|
end
|
|
if count > 0 then
|
|
if not pos_leq(last, spos) then
|
|
error("DISORDER")
|
|
end
|
|
end
|
|
count = count + 1
|
|
last = spos
|
|
if giveorder then
|
|
pos2id[count] = id
|
|
id2pos[id] = count
|
|
end
|
|
until not lib.marktree_itr_next(tree, iter)
|
|
local shadowlen = tablelength(shadow)
|
|
if shadowlen ~= count then
|
|
error("missed some keys? (shadow "..shadowlen..", tree "..count..")")
|
|
end
|
|
return id2pos, pos2id
|
|
end
|
|
|
|
local function shadowsplice(shadow, start, old_extent, new_extent)
|
|
local old_end = {start[1] + old_extent[1],
|
|
(old_extent[1] == 0 and start[2] or 0) + old_extent[2]}
|
|
local new_end = {start[1] + new_extent[1],
|
|
(new_extent[1] == 0 and start[2] or 0) + new_extent[2]}
|
|
local delta = {new_end[1] - old_end[1], new_end[2] - old_end[2]}
|
|
for _, pos in pairs(shadow) do
|
|
if pos_leq(start, pos) then
|
|
if pos_leq(pos, old_end) then
|
|
-- delete region
|
|
if pos[3] then -- right gravity
|
|
pos[1], pos[2] = new_end[1], new_end[2]
|
|
else
|
|
pos[1], pos[2] = start[1], start[2]
|
|
end
|
|
else
|
|
if pos[1] == old_end[1] then
|
|
pos[2] = pos[2] + delta[2]
|
|
end
|
|
pos[1] = pos[1] + delta[1]
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
local function dosplice(tree, shadow, start, old_extent, new_extent)
|
|
lib.marktree_splice(tree, start[1], start[2], old_extent[1], old_extent[2], new_extent[1], new_extent[2])
|
|
shadowsplice(shadow, start, old_extent, new_extent)
|
|
end
|
|
|
|
local last_id = nil
|
|
|
|
local function put(tree, row, col, gravitate)
|
|
last_id = last_id + 1
|
|
local my_id = last_id
|
|
|
|
lib.marktree_put_test(tree, my_id, row, col, gravitate);
|
|
return my_id
|
|
end
|
|
|
|
describe('marktree', function()
|
|
before_each(function()
|
|
last_id = 0
|
|
end)
|
|
|
|
itp('works', function()
|
|
local tree = ffi.new("MarkTree[1]") -- zero initialized by luajit
|
|
local shadow = {}
|
|
local iter = ffi.new("MarkTreeIter[1]")
|
|
local iter2 = ffi.new("MarkTreeIter[1]")
|
|
|
|
for i = 1,100 do
|
|
for j = 1,100 do
|
|
local gravitate = (i%2) > 0
|
|
local id = put(tree, j, i, gravitate)
|
|
ok(id > 0)
|
|
eq(nil, shadow[id])
|
|
shadow[id] = {j,i,gravitate}
|
|
end
|
|
-- checking every insert is too slow, but this is ok
|
|
lib.marktree_check(tree)
|
|
end
|
|
|
|
-- ss = lib.mt_inspect_rec(tree)
|
|
-- io.stdout:write(ffi.string(ss))
|
|
-- io.stdout:flush()
|
|
|
|
local id2pos, pos2id = shadoworder(tree, shadow, iter)
|
|
eq({}, pos2id) -- not set if not requested
|
|
eq({}, id2pos)
|
|
|
|
for i,ipos in pairs(shadow) do
|
|
local p = lib.marktree_lookup_ns(tree, -1, i, false, iter)
|
|
eq(ipos[1], p.pos.row)
|
|
eq(ipos[2], p.pos.col)
|
|
local k = lib.marktree_itr_current(iter)
|
|
eq(ipos[1], k.pos.row)
|
|
eq(ipos[2], k.pos.col, ipos[1])
|
|
lib.marktree_itr_next(tree, iter)
|
|
-- TODO(bfredl): use id2pos to check neighbour?
|
|
-- local k2 = lib.marktree_itr_current(iter)
|
|
end
|
|
|
|
for i,ipos in pairs(shadow) do
|
|
lib.marktree_itr_get(tree, ipos[1], ipos[2], iter)
|
|
local k = lib.marktree_itr_current(iter)
|
|
eq(i, tonumber(k.id))
|
|
eq(ipos[1], k.pos.row)
|
|
eq(ipos[2], k.pos.col)
|
|
end
|
|
|
|
ok(lib.marktree_itr_first(tree, iter))
|
|
local del = lib.marktree_itr_current(iter)
|
|
|
|
lib.marktree_del_itr(tree, iter, false)
|
|
shadow[tonumber(del.id)] = nil
|
|
shadoworder(tree, shadow, iter)
|
|
|
|
for _, ci in ipairs({0,-1,1,-2,2,-10,10}) do
|
|
for i = 1,100 do
|
|
lib.marktree_itr_get(tree, i, 50+ci, iter)
|
|
local k = lib.marktree_itr_current(iter)
|
|
local id = tonumber(k.id)
|
|
eq(shadow[id][1], k.pos.row)
|
|
eq(shadow[id][2], k.pos.col)
|
|
lib.marktree_del_itr(tree, iter, false)
|
|
shadow[id] = nil
|
|
end
|
|
lib.marktree_check(tree)
|
|
shadoworder(tree, shadow, iter)
|
|
end
|
|
|
|
-- NB: this is quite rudimentary. We rely on
|
|
-- functional tests exercising splicing quite a bit
|
|
lib.marktree_check(tree)
|
|
dosplice(tree, shadow, {2,2}, {0,5}, {1, 2})
|
|
lib.marktree_check(tree)
|
|
shadoworder(tree, shadow, iter)
|
|
dosplice(tree, shadow, {30,2}, {30,5}, {1, 2})
|
|
lib.marktree_check(tree)
|
|
shadoworder(tree, shadow, iter)
|
|
|
|
dosplice(tree, shadow, {5,3}, {0,2}, {0, 5})
|
|
shadoworder(tree, shadow, iter)
|
|
lib.marktree_check(tree)
|
|
|
|
-- build then burn (HOORAY! HOORAY!)
|
|
while next(shadow) do
|
|
lib.marktree_itr_first(tree, iter)
|
|
-- delete every other key for fun and profit
|
|
while true do
|
|
local k = lib.marktree_itr_current(iter)
|
|
lib.marktree_del_itr(tree, iter, false)
|
|
ok(shadow[tonumber(k.id)] ~= nil)
|
|
shadow[tonumber(k.id)] = nil
|
|
local stat = lib.marktree_itr_next(tree, iter)
|
|
if not stat then
|
|
break
|
|
end
|
|
end
|
|
lib.marktree_check(tree)
|
|
shadoworder(tree, shadow, iter2)
|
|
end
|
|
|
|
-- Check iterator validity for 2 specific edge cases:
|
|
-- https://github.com/neovim/neovim/pull/14719
|
|
lib.marktree_clear(tree)
|
|
for i = 1,20 do
|
|
put(tree, i, i, false)
|
|
end
|
|
|
|
lib.marktree_itr_get(tree, 10, 10, iter)
|
|
lib.marktree_del_itr(tree, iter, false)
|
|
eq(11, iter[0].node.key[iter[0].i].pos.col)
|
|
|
|
lib.marktree_itr_get(tree, 11, 11, iter)
|
|
lib.marktree_del_itr(tree, iter, false)
|
|
eq(12, iter[0].node.key[iter[0].i].pos.col)
|
|
end)
|
|
end)
|