Class in macro compiler

`Variant`

class Variant

Import

use macro::{Variant};

One enum variant. shape is "unit", "tuple" (payload in tuple) or "record" (payload in fields).

Fields#

Field	Type	Description
`name`	`Ident`
`shape`	`string`
`tuple`	`Vec<TypeRef>`
`fields`	`Vec<Field>`
`value`	`string`	Scalar discriminant as written (`200`, `"ok"`), or `""`.
`attrs`	`Vec<Attr>`
`docs`	`Vec<string>`

Name	Description
`is_unit`
`is_tuple`
`is_record`
`arity`	Number of payload values (0 for a unit variant).
`has_attr`
`attr_str`

Code: Generated coil source: declarations, an expression, statements or a type.
Ident: A name as written in source.
Expr: A function-style macro argument as written: f(1), a + b, "text".
TypeRef: A type annotation as written (not resolved): Vec<int>, json::Value.
AttrArg: One key = value (or positional value, with key == "") attribute argument.
Attr: #[name(args)] on a declaration, field or variant.
Field: A class field, or a field of a record enum variant.
TypeDecl: A class or enum declaration handed to a derive or attribute macro.