errors and warnings / types / W2063

W2063 warning

A parameter without an annotation that nothing gives a type (no expected function type, or one that says any), or a local without an annotation whose value is any, or a generic type written without its type arguments (Box for Box<T>: they are any; decision T276), or a member a widget class doesn't declare, read or set through the openness of the game's frames (decision L51): it is any without saying so. Off unless check.lints sets it ("W2063": "warn"); names starting with _ are exempt (decision T274)

area: types (x2xxx)
fails the build: with --deny-warnings

A value is any without anyone writing any: a parameter nothing gives a type, a local whose value is any, a generic type written without its type arguments, or a member a frame or widget class doesn't declare. any turns checking off, so mistakes there pass unseen. Annotate the value, or write : any where you mean it.

The lint is off unless the manifest turns it on ("check": { "lints": { "W2063": "warn" } }). Names starting with _ are exempt.

Example

× failswowlua.jsonjson

{    "package": { "name": "playground", "version": "0.1.0", "wowlua": "^0.13" },    "flavors": { "camelot": {} },    "check": { "lints": { "W2063": "warn" } }}

src/main.wowluawowlua

local function show(value)    print(value)endshow(1)

✓ compileswowlua.jsonjson

{    "package": { "name": "playground", "version": "0.1.0", "wowlua": "^0.13" },    "flavors": { "camelot": {} },    "check": { "lints": { "W2063": "warn" } }}

src/main.wowluawowlua

local function show(value: number)    print(value)endshow(1)

The compiler reports it like this:

warning[W2063]: parameter `value` is `any`: nothing gives it a type (annotate it)
  ┌─ src/main.wowlua:1:21
  │
1 │ local function show(value)
  │                     ^^^^^ here

code	message
E2050	Missing parameter type annotation (strict mode)

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terminal

$ wowlua explain W2063
W2063 (warning): A parameter without an annotation that nothing gives a type (no expected function type, or one that says any), or a local without an annotation whose value is any, or a generic type written without its type arguments (Box for Box<T>: they are any; decision T276), or a member a widget class doesn't declare, read or set through the openness of the game's frames (decision L51): it is any without saying so. Off unless check.lints sets it ("W2063": "warn"); names starting with _ are exempt (decision T274)

source on GitHub ↗

Example

Related codes

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