nvim/lua/snippets/go/err_tower.lua
2024-06-17 15:22:39 +07:00

453 lines
12 KiB
Lua

local ls = require "luasnip"
local sn = ls.snippet_node
local isn = ls.indent_snippet_node
local s = ls.s
local i = ls.insert_node
local t = ls.text_node
local d = ls.dynamic_node
local c = ls.choice_node
local f = ls.function_node
local fmta = require("luasnip.extras.fmt").fmta
local rep = require("luasnip.extras").rep
local get_node_text = vim.treesitter.get_node_text
local default_values = {
int = "0",
int8 = "0",
int16 = "0",
int32 = "0",
int64 = "0",
uint = "0",
uint8 = "0",
uint16 = "0",
uint32 = "0",
uint64 = "0",
["time.Time"] = "time.Time{}",
["time.Duration"] = "time.Duration(0)",
bool = "false",
string = [[""]],
float32 = "0",
float64 = "0",
error = "errt",
-- Types with a "*" mean they are pointers, so return nil
[function(text)
return string.find(text, "*", 1, true) ~= nil
end] = function(_, _)
return t "nil"
end,
[function(text)
return not string.find(text, "*", 1, true) and string.upper(string.sub(text, 1, 1)) == string.sub(text, 1, 1)
end] = function(text, info)
info.index = info.index + 1
return sn(info.index, {
c(1, {
t(text .. "{}"),
i(2, text),
}),
})
end,
}
local transform = function(text, info)
local condition_matches = function(condition, ...)
if type(condition) == "string" then
return condition == text
else
return condition(...)
end
end
for condition, result in pairs(default_values) do
if condition_matches(condition, text, info) then
if type(result) == "string" then
return t(result)
end
return result(text, info)
end
end
info.index = info.index + 1
return sn(info.index, {
c(1, {
t(text .. "{}"),
i(2, text),
}),
})
end
local handlers = {
parameter_list = function(node, info)
local result = {}
local count = node:named_child_count()
for idx = 0, count - 1 do
local matching_node = node:named_child(idx)
local type_node = matching_node:field("type")[1]
table.insert(result, transform(get_node_text(type_node, 0), info))
if idx ~= count - 1 then
table.insert(result, t { ", " })
end
end
return result
end,
type_identifier = function(node, info)
local text = get_node_text(node, 0)
return { transform(text, info) }
end,
}
local function_node_types = {
function_declaration = true,
method_declaration = true,
func_literal = true,
}
local function go_result_type(info)
local node = vim.treesitter.get_node()
while node ~= nil do
if function_node_types[node:type()] then
break
end
node = node:parent()
end
if not node then
vim.notify("Not inside a function", vim.log.levels.ERROR, { title = "Snippet" })
return t ""
end
local query = assert(vim.treesitter.query.get("go", "return-snippet"), "No Query")
for _, capture in query:iter_captures(node, 0) do
if handlers[capture:type()] then
return handlers[capture:type()](capture, info)
end
end
return {}
end
local go_return_values = function()
return sn(
nil,
go_result_type {
index = 0,
}
)
end
local function get_method_or_function_declaration_node(node)
local parent = node:parent()
while parent ~= nil do
if parent:type() == "function_declaration" or parent:type() == "method_declaration" then
return parent
end
parent = parent:parent()
end
end
local function get_method_or_function_name(node)
if node:type() == "method_declaration" then
return get_node_text(node:named_child(1), 0)
end
return get_node_text(node:named_child(0), 0)
end
local function get_method_receiver_type_text(node)
local query = vim.treesitter.query.parse(
"go",
[[
(method_declaration receiver: (parameter_list
(parameter_declaration type: (_) @method_receiver)))
]]
)
for _, capture in query:iter_captures(node, 0) do
local text = get_node_text(capture, 0)
if text:sub(1, 1) == "*" then
return "(" .. text .. ")"
end
return text
end
return "Method Receiver Not Found"
end
local function get_package_node(node)
local root = node:tree():root()
local query = assert(vim.treesitter.query.get("go", "package-node"), "No Query")
for _, capture in query:iter_captures(root, 0) do
return capture
end
return nil
end
local function get_package_text(node)
local package_node = get_package_node(node)
if package_node then
return get_node_text(package_node, 0) .. "."
end
vim.notify("Package name not found", vim.log.levels.ERROR, { title = "Snippet" })
return ""
end
local function get_function_name()
local node = vim.treesitter.get_node()
local method_or_function_node = get_method_or_function_declaration_node(node)
if not method_or_function_node then
vim.notify("Not inside a function", vim.log.levels.ERROR, { title = "Snippet" })
return ""
end
local fn_name = get_method_or_function_name(method_or_function_node)
if method_or_function_node:type() == "method_declaration" then
return ([[(%s.%s.%s)]]):format(get_package_text(node), get_method_receiver_type_text(node), fn_name)
end
return ([[(%s.%s)]]):format(get_package_text(node), fn_name)
end
local function get_context_var_name()
local node = vim.treesitter.get_node()
while node ~= nil do
if function_node_types[node:type()] then
local query = assert(vim.treesitter.query.get("go", "get-function-params"), "No Query")
for _, capture in query:iter_captures(node, 0) do
local var_name = capture:named_child(0)
if var_name:type() == "identifier" then
local type_name = capture:named_child(1)
local type_text = get_node_text(type_name, 0)
if type_text == "context.Context" then
return get_node_text(var_name, 0)
end
end
end
end
node = node:parent()
end
return "context.Background()"
end
local create_tower_build_choice = function(index)
return c(index, {
t "Freeze()",
sn(nil, { i(1), t "Log(", f(get_context_var_name), t ")" }),
-- stylua: ignore start
isn(nil, {
i(1), t "Log(", f(get_context_var_name), t ").",
t {"", "Notify("}, f(get_context_var_name), t ")",
}, "$PARENT_INDENT\t\t"),
-- stylua: ignore end
}, {
node_ext_opts = {
active = {
virt_text = { { "<-- Choose build choice" } },
},
},
})
end
local function register_snippet()
ls.add_snippets("go", {
s(
"errt",
fmta(
[[
if <err> != nil {
errt := tower.
Wrap(<err_same>, "<caller> <message>").
<build>
return <result>
}
<finish>
]],
{
err = i(1, "err"),
err_same = rep(1),
caller = f(get_function_name),
message = i(2, "message"),
build = create_tower_build_choice(3),
result = d(4, go_return_values),
finish = i(0),
}
)
),
s(
"errtc",
fmta(
[[
if <err> != nil {
errt := tower.
Wrap(<err_same>, "<caller> <message>").
Context(<fields>).
<build>
return <result>
}
<finish>
]],
{
err = i(1, "err"),
err_same = rep(1),
caller = f(get_function_name),
message = i(2, "message"),
fields = i(3),
build = create_tower_build_choice(4),
result = d(5, go_return_values),
finish = i(0),
}
)
),
s(
"errtp",
fmta(
[[
if <err> != nil {
errt := tower.
Wrap(<err_same>, "<caller> <message>").
PublicMessage("<public_message>").
<build>
return <result>
}
<finish>
]],
{
err = i(1, "err"),
err_same = rep(1),
caller = f(get_function_name),
message = i(2, "message"),
public_message = i(3, "public_message"),
build = create_tower_build_choice(4),
result = d(5, go_return_values),
finish = i(0),
}
)
),
s(
"errtpc",
fmta(
[[
if <err> != nil {
errt := tower.
Wrap(<err_same>, "<caller> <message>").
PublicMessage("<public_message>").
Context(<fields>).
<build>
return <result>
}
<finish>
]],
{
err = i(1, "err"),
err_same = rep(1),
caller = f(get_function_name),
message = i(2, "message"),
public_message = i(3, "public_message"),
fields = i(4),
build = create_tower_build_choice(5),
result = d(6, go_return_values),
finish = i(0),
}
)
),
s(
"errb",
fmta(
[[
if <condition> {
errt := tower.
Bail("<caller> <message>").
<build>
return <result>
}
<finish>
]],
{
condition = i(1),
caller = f(get_function_name),
message = i(2, "message"),
build = create_tower_build_choice(3),
result = d(4, go_return_values),
finish = i(0),
}
)
),
s(
"errbc",
fmta(
[[
if <condition> {
errt := tower.
Bail("<caller> <message>").
Context(<fields>).
<build>
return <result>
}
<finish>
]],
{
condition = i(1),
caller = f(get_function_name),
message = i(2, "message"),
fields = i(3),
build = create_tower_build_choice(4),
result = d(5, go_return_values),
finish = i(0),
}
)
),
s(
"errbp",
fmta(
[[
if <condition> {
errt := tower.
Bail("<caller> <message>").
PublicMessage("<public_message>").
<build>
return <result>
}
<finish>
]],
{
condition = i(1),
caller = f(get_function_name),
message = i(2, "message"),
public_message = i(3, "public_message"),
build = create_tower_build_choice(4),
result = d(5, go_return_values),
finish = i(0),
}
)
),
s(
"errbpc",
fmta(
[[
if <condition> {
errt := tower.
Bail("<caller> <message>").
PublicMessage("<public_message>").
Context(<fields>).
<build>
return <result>
}
<finish>
]],
{
condition = i(1),
caller = f(get_function_name),
message = i(2, "message"),
public_message = i(3, "public_message"),
fields = i(4),
build = create_tower_build_choice(5),
result = d(6, go_return_values),
finish = i(0),
}
)
),
})
end
register_snippet()