127 lines
2.8 KiB
Lua
127 lines
2.8 KiB
Lua
---@class ow.dap.hover.Node
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---@field item ow.dap.Item
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---@field parent ow.dap.hover.Node?
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---@field children ow.dap.hover.Node[]
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---@field is_expanded boolean
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---@field is_last_child boolean
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local Node = {}
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Node.__index = Node
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---@param item ow.dap.Item
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---@param parent ow.dap.hover.Node?
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---@return ow.dap.hover.Node
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function Node.new(item, parent)
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local node = setmetatable({
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item = item,
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parent = parent,
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children = {},
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is_expanded = false,
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is_last_child = false,
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}, Node)
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return node
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end
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---@return boolean
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function Node:is_container()
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return self.item.variablesReference and self.item.variablesReference > 0
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or false
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end
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---@return string
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function Node:get_tree_prefix()
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if not self.parent then
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return ""
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end
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local prefix = ""
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local node = self.parent
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while node and node.parent do
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if node.is_last_child then
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prefix = " " .. prefix
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else
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prefix = "│ " .. prefix
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end
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node = node.parent
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end
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if self.is_last_child then
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prefix = prefix .. "└─ "
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else
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prefix = prefix .. "├─ "
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end
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return prefix
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end
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---@return boolean
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function Node:is_c_array_element()
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return self.item.name:match("^%[?%d+%]?$") ~= nil
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end
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---@return boolean
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function Node:is_c_pointer_child()
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return self.parent
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and self.parent.item.type:match(
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"%*%s*[const%s]*[volatile%s]*[restrict%s]*$"
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) ~= nil
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or false
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end
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---@return string
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function Node:format_c()
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if self:is_c_array_element() then
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return string.format(
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"%s = (%s) %s",
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self.item.name,
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self.item.type,
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self.item.value
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)
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end
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if self:is_c_pointer_child() then
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return string.format("%s = %s", self.item.name, self.item.value)
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end
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return string.format(
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"%s %s = %s",
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self.item.type,
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self.item.name,
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self.item.value
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)
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end
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---@param session dap.Session
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---@param content ow.dap.hover.Content
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function Node:format_into(session, content)
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if self:is_container() then
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local marker = self.is_expanded and "-" or "+"
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content:add(marker .. " ", "@comment")
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else
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content:add(" ")
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end
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local tree_prefix = self:get_tree_prefix()
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if tree_prefix ~= "" then
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content:add(tree_prefix, "@comment")
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end
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local text
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if session.filetype == "c" or session.filetype == "cpp" then
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text = self:format_c()
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else
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error(
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string.format("Formatting for %s not implemented", session.filetype)
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)
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end
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content:add_with_treesitter(text, session.filetype)
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if self.item.value == "" then
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content:add("...", "@comment")
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end
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end
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return Node
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