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tree-sitter: improve parser API (shared parser between plugins)

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Björn Linse
2019-06-17 21:46:31 +02:00
parent d697841a9d
commit 167a1cfdef
2 changed files with 69 additions and 21 deletions
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27
test/functional/lua/treesitter_spec.lua
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@@ -8,6 +8,7 @@ local insert = helpers.insert
local meth_pcall = helpers.meth_pcall
local exec_lua = helpers.exec_lua
local iswin = helpers.iswin
local feed = helpers.feed
before_each(clear)
@@ -46,12 +47,11 @@ describe('tree-sitter API', function()
}]])
exec_lua([[
parser = vim.treesitter.create_parser(0, "c")
tree = parser:parse_tree()
parser = vim.treesitter.get_parser(0, "c")
tree = parser:parse()
root = tree:root()
]])
--eq("<parser>", exec_lua("return tostring(parser)"))
eq("<tree>", exec_lua("return tostring(tree)"))
eq("<node translation_unit>", exec_lua("return tostring(root)"))
eq({0,0,3,0}, exec_lua("return {root:range()}"))
@@ -60,6 +60,27 @@ describe('tree-sitter API', function()
exec_lua("child = root:child(0)")
eq("<node function_definition>", exec_lua("return tostring(child)"))
eq({0,0,2,1}, exec_lua("return {child:range()}"))
exec_lua("descendant = root:descendant_for_point_range(1,2,1,12)")
eq("<node declaration>", exec_lua("return tostring(descendant)"))
eq({1,2,1,12}, exec_lua("return {descendant:range()}"))
eq("(declaration (primitive_type) (init_declarator (identifier) (number_literal)))", exec_lua("return descendant:sexpr()"))
feed("2G7|ay")
exec_lua([[
tree2 = parser:parse()
root2 = tree2:root()
descendant2 = root2:descendant_for_point_range(1,2,1,13)
]])
eq(false, exec_lua("return tree2 == tree1"))
eq("<node declaration>", exec_lua("return tostring(descendant2)"))
eq({1,2,1,13}, exec_lua("return {descendant2:range()}"))
-- orginal tree did not change
eq({1,2,1,12}, exec_lua("return {descendant:range()}"))
-- unchanged buffer: return the same tree
eq(true, exec_lua("return parser:parse() == tree2"))
end)
end)