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local t = require('test.testutil')
local eq = t.eq
local grammar = require('scripts/luacats_grammar')
describe('luacats grammar', function()
--- @param text string
--- @param exp table<string,string>
local function test(text, exp)
it(string.format('can parse %q', text), function()
eq(exp, grammar:match(text))
end)
end
test('@param hello vim.type', {
kind = 'param',
name = 'hello',
type = 'vim.type',
})
test('@param hello vim.type this is a description', {
kind = 'param',
name = 'hello',
type = 'vim.type',
desc = 'this is a description',
})
test('@param hello vim.type|string this is a description', {
kind = 'param',
name = 'hello',
type = 'vim.type|string',
desc = 'this is a description',
})
test('@param hello vim.type?|string? this is a description', {
kind = 'param',
name = 'hello',
type = 'vim.type?|string?',
desc = 'this is a description',
})
test('@return string hello this is a description', {
kind = 'return',
{
name = 'hello',
type = 'string',
},
desc = 'this is a description',
})
test('@return fun() hello this is a description', {
kind = 'return',
{
name = 'hello',
type = 'fun()',
},
desc = 'this is a description',
})
test('@return fun(a: string[]): string hello this is a description', {
kind = 'return',
{
name = 'hello',
type = 'fun(a: string[]): string',
},
desc = 'this is a description',
})
test('@return fun(a: table<string,any>): string hello this is a description', {
kind = 'return',
{
name = 'hello',
type = 'fun(a: table<string,any>): string',
},
desc = 'this is a description',
})
test('@param ... string desc', {
kind = 'param',
name = '...',
type = 'string',
desc = 'desc',
})
test('@param level (integer|string) desc', {
kind = 'param',
name = 'level',
type = 'integer|string',
desc = 'desc',
})
test('@return (string command) the command and arguments', {
kind = 'return',
{
name = 'command',
type = 'string',
},
desc = 'the command and arguments',
})
test('@return (string command, string[] args) the command and arguments', {
kind = 'return',
{
name = 'command',
type = 'string',
},
{
name = 'args',
type = 'string[]',
},
desc = 'the command and arguments',
})
test('@param rfc "rfc2396" | "rfc2732" | "rfc3986" | nil', {
kind = 'param',
name = 'rfc',
type = '"rfc2396" | "rfc2732" | "rfc3986" | nil',
})
test('@param offset_encoding "utf-8" | "utf-16" | "utf-32" | nil', {
kind = 'param',
name = 'offset_encoding',
type = '"utf-8" | "utf-16" | "utf-32" | nil',
})
-- handle a : after the param type
test('@param a b: desc', {
kind = 'param',
name = 'a',
type = 'b',
desc = 'desc',
})
test(
'@field prefix? string|table|(fun(diagnostic:vim.Diagnostic,i:integer,total:integer): string, string)',
{
kind = 'field',
name = 'prefix?',
type = 'string|table|(fun(diagnostic:vim.Diagnostic,i:integer,total:integer): string, string)',
}
)
test('@field [integer] integer', {
kind = 'field',
name = '[integer]',
type = 'integer',
})
test('@field [1] integer', {
kind = 'field',
name = '[1]',
type = 'integer',
})
test('@param type `T` this is a generic type', {
desc = 'this is a generic type',
kind = 'param',
name = 'type',
type = '`T`',
})
test('@param type [number,string,"good"|"bad"] this is a tuple type', {
desc = 'this is a tuple type',
kind = 'param',
name = 'type',
type = '[number,string,"good"|"bad"]',
})
test('@class vim.diagnostic.JumpOpts', {
kind = 'class',
name = 'vim.diagnostic.JumpOpts',
})
test('@class vim.diagnostic.JumpOpts : vim.diagnostic.GetOpts', {
kind = 'class',
name = 'vim.diagnostic.JumpOpts',
parent = 'vim.diagnostic.GetOpts',
})
test('@param opt? { cmd?: string[] } Options', {
kind = 'param',
name = 'opt?',
type = '{ cmd?: string[] }',
desc = 'Options',
})
---@type [string, string?][]
local test_cases = {
{ 'foo' },
{ 'foo ', 'foo' }, -- trims whitespace
{ 'true' },
{ 'vim.type' },
{ 'vim-type' },
{ 'vim_type' },
{ 'foo.bar-baz_baz' },
{ '`ABC`' },
{ '42' },
{ '-42' },
{ '(foo)', 'foo' }, -- removes unnecessary parens
{ 'true?' },
{ '(true)?' },
{ 'string[]' },
{ 'string|number' },
{ '(string)[]' },
{ '(string|number)[]' },
{ 'coalesce??', 'coalesce?' }, -- removes unnecessary ?
{ 'number?|string' },
{ "'foo'|'bar'|'baz'" },
{ '"foo"|"bar"|"baz"' },
{ '(number)?|string' }, --
{ 'number[]|string' },
{ 'string[]?' },
{ 'foo?[]' },
{ 'vim.type?|string? ', 'vim.type?|string?' },
{ 'number[][]' },
{ 'number[][][]' },
{ 'number[][]?' },
{ 'string|integer[][]?' },
-- tuples
{ '[string]' },
{ '[1]' },
{ '[string, number]' },
{ '[string, number]?' },
{ '[string, number][]' },
{ '[string, number]|string' },
{ '[string|number, number?]' },
{ 'string|[string, number]' },
{ '(true)?|[foo]' },
{ '[fun(a: string):boolean]' },
-- dict
{ '{[string]:string}' },
{ '{ [ string ] : string }' },
{ '{ [ string|any ] : string }' },
{ '{[string]: string, [number]: boolean}' },
-- key-value table
{ 'table<string,any>' },
{ 'table' },
{ 'string|table|boolean' },
{ 'string|table|(boolean)' },
-- table literal
{ '{foo: number}' },
{ '{foo: string, bar: [number, boolean]?}' },
{ 'boolean|{reverse?:boolean}' },
{ '{ cmd?: string[] }' },
-- function
{ 'fun(a: string, b:foo|bar): string' },
{ 'fun(a?: string): string' },
{ 'fun(a?: string): number?,string?' },
{ '(fun(a: string, b:foo|bar): string)?' },
{ 'fun(a: string, b:foo|bar): string, string' },
{ 'fun(a: string, b:foo|bar)' },
{ 'fun(_, foo, bar): string' },
{ 'fun(...): number' },
{ 'fun( ... ): number' },
{ 'fun(...:number): number' },
{ 'fun( ... : number): number' },
-- generics
{ 'elem_or_list<string>' },
{
'elem_or_list<fun(client: vim.lsp.Client, initialize_result: lsp.InitializeResult)>',
nil,
},
}
for _, tc in ipairs(test_cases) do
local ty, exp_ty = tc[1], tc[2]
if exp_ty == nil then
exp_ty = ty
end
local var, desc = 'x', 'some desc'
local param = string.format('@param %s %s %s', var, ty, desc)
test(param, {
kind = 'param',
name = var,
type = exp_ty,
desc = desc,
})
end
end)
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