Trait LuaVersion 

pub trait LuaVersion: 'static + Sealed {
    const NAME: &'static str;
    const HAS_FLOOR_DIV: bool;
    const HAS_COMPOUND_ASSIGN: bool;
    const HAS_CONTINUE: bool;
    const HAS_IF_EXPR: bool;
    const HAS_STRING_INTERP: bool;
    const HAS_TYPE_ANNOTATIONS: bool;
    const HAS_ATTRIBUTES: bool;
    const HAS_GENERICS: bool;
    const HAS_EXPORT: bool;
    const HAS_GOTO: bool;
    const HAS_BITWISE_OPS: bool;
    const HAS_VARIABLE_ATTRIBUTES: bool;
    const HAS_CONST: bool;
}

Describes which syntax features a Lua version supports.

This is a sealed trait; you cannot implement it for your own types. Pick one of the provided versions: Luau, Lua51, Lua52, Lua53, or Lua54.

Required Associated Constants

const NAME: &'static str

A display name for this version (e.g. "Lua 5.4", "Luau").

const HAS_FLOOR_DIV: bool

// integer division operator.

const HAS_COMPOUND_ASSIGN: bool

Compound assignment operators (+=, -=, etc.).

const HAS_CONTINUE: bool

The continue keyword inside loops.

const HAS_IF_EXPR: bool

Inline if cond then a else b expressions.

const HAS_STRING_INTERP: bool

Backtick interpolated strings (`hello {name}`).

const HAS_TYPE_ANNOTATIONS: bool

Type annotations (: Type, -> ReturnType).

const HAS_ATTRIBUTES: bool

@native and similar function attributes.

const HAS_GENERICS: bool

Generic type parameters (<T>).

const HAS_EXPORT: bool

export type declarations.

const HAS_GOTO: bool

goto and ::label:: statements.

const HAS_BITWISE_OPS: bool

Bitwise operators (&, |, ~, <<, >>).

const HAS_VARIABLE_ATTRIBUTES: bool

<const> and <close> variable attributes (Lua 5.4).

const HAS_CONST: bool

local const x = 5 immutable bindings (Luau).

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl LuaVersion for Lua51

const NAME: &'static str = "Lua 5.1"

const HAS_FLOOR_DIV: bool = false

const HAS_COMPOUND_ASSIGN: bool = false

const HAS_CONTINUE: bool = false

const HAS_IF_EXPR: bool = false

const HAS_STRING_INTERP: bool = false

const HAS_TYPE_ANNOTATIONS: bool = false

const HAS_ATTRIBUTES: bool = false

const HAS_GENERICS: bool = false

const HAS_EXPORT: bool = false

const HAS_GOTO: bool = false

const HAS_BITWISE_OPS: bool = false

const HAS_VARIABLE_ATTRIBUTES: bool = false

const HAS_CONST: bool = false

impl LuaVersion for Lua52

const NAME: &'static str = "Lua 5.2"

const HAS_FLOOR_DIV: bool = false

const HAS_COMPOUND_ASSIGN: bool = false

const HAS_CONTINUE: bool = false

const HAS_IF_EXPR: bool = false

const HAS_STRING_INTERP: bool = false

const HAS_TYPE_ANNOTATIONS: bool = false

const HAS_ATTRIBUTES: bool = false

const HAS_GENERICS: bool = false

const HAS_EXPORT: bool = false

const HAS_GOTO: bool = true

const HAS_BITWISE_OPS: bool = false

const HAS_VARIABLE_ATTRIBUTES: bool = false

const HAS_CONST: bool = false

impl LuaVersion for Lua53

const NAME: &'static str = "Lua 5.3"

const HAS_FLOOR_DIV: bool = true

const HAS_COMPOUND_ASSIGN: bool = false

const HAS_CONTINUE: bool = false

const HAS_IF_EXPR: bool = false

const HAS_STRING_INTERP: bool = false

const HAS_TYPE_ANNOTATIONS: bool = false

const HAS_ATTRIBUTES: bool = false

const HAS_GENERICS: bool = false

const HAS_EXPORT: bool = false

const HAS_GOTO: bool = true

const HAS_BITWISE_OPS: bool = true

const HAS_VARIABLE_ATTRIBUTES: bool = false

const HAS_CONST: bool = false

impl LuaVersion for Lua54

const NAME: &'static str = "Lua 5.4"

const HAS_FLOOR_DIV: bool = true

const HAS_COMPOUND_ASSIGN: bool = false

const HAS_CONTINUE: bool = false

const HAS_IF_EXPR: bool = false

const HAS_STRING_INTERP: bool = false

const HAS_TYPE_ANNOTATIONS: bool = false

const HAS_ATTRIBUTES: bool = true

const HAS_GENERICS: bool = false

const HAS_EXPORT: bool = false

const HAS_GOTO: bool = true

const HAS_BITWISE_OPS: bool = true

const HAS_VARIABLE_ATTRIBUTES: bool = true

const HAS_CONST: bool = false

impl LuaVersion for Luau

const NAME: &'static str = "Luau"

const HAS_FLOOR_DIV: bool = true

const HAS_COMPOUND_ASSIGN: bool = true

const HAS_CONTINUE: bool = true

const HAS_IF_EXPR: bool = true

const HAS_STRING_INTERP: bool = true

const HAS_TYPE_ANNOTATIONS: bool = true

const HAS_ATTRIBUTES: bool = true

const HAS_GENERICS: bool = true

const HAS_EXPORT: bool = true

const HAS_GOTO: bool = false

const HAS_BITWISE_OPS: bool = false

const HAS_VARIABLE_ATTRIBUTES: bool = false

const HAS_CONST: bool = true