Module cranelift_isle::ast

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Abstract syntax tree (AST) created from parsed ISLE.

Structs

An implicit converter: the given term, which must have type (inner_ty) -> outer_ty, is used either in extractor or constructor position as appropriate when a type mismatch with the given pair of types would otherwise occur.
A declaration of a term with its argument and return types.
The parsed form of an ISLE file.
An extractor macro: (A x y) becomes (B x _ y …). Expanded during ast-to-sema pass.
One field of an enum variant.
An identifier – a variable, term symbol, or type.
One variable locally bound in a (let ...) expression.
A declaration of a type.
One variant of an enum type.

Enums

One toplevel form in an ISLE file.
An expression: the right-hand side of a rule.
An external binding: an extractor or constructor function attached to a term.
A pattern: the left-hand side of a rule.
Pragmas parsed with the (pragma <ident>) syntax.
The actual type-value: a primitive or an enum with variants.