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fix(treesitter): make InspectTree correctly handle nested injections (#26085)

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Problem: Only injections under the top level tree are found.

Solution: Iterate through all trees to find injections. When two
injections are contained within the same node in the parent tree, prefer
the injection with the larger byte length.
This commit is contained in:
Pham Huy Hoang 2023-11-29 23:16:52 +09:00 committed by GitHub
parent 7bc5ee7f93
commit b6e339eb90
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1 changed files with 17 additions and 12 deletions
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29
runtime/lua/vim/treesitter/dev.lua
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@ -105,18 +105,23 @@ function TSTreeView:new(bufnr, lang)
-- the root in the child tree to the {injections} table.
local root = parser:parse(true)[1]:root()
local injections = {} ---@type table<integer,table>
for _, child in pairs(parser:children()) do
child:for_each_tree(function(tree, ltree)
local r = tree:root()
local node = root:named_descendant_for_range(r:range())
if node then
injections[node:id()] = {
lang = ltree:lang(),
root = r,
}
end
end)
end
parser:for_each_tree(function(parent_tree, parent_ltree)
local parent = parent_tree:root()
for _, child in pairs(parent_ltree:children()) do
child:for_each_tree(function(tree, ltree)
local r = tree:root()
local node = assert(parent:named_descendant_for_range(r:range()))
local id = node:id()
if not injections[id] or r:byte_length() > injections[id].root:byte_length() then
injections[id] = {
lang = ltree:lang(),
root = r,
}
end
end)
end
end)
local nodes = traverse(root, 0, parser:lang(), injections, {})