Module ast 

Abstract syntax tree for Jetro v2 expressions.

The AST is the contract between the parser and every other v2 layer — the compiler lowers it to opcodes, analyses inspect it for ident-use / purity, and tests build it directly. Because every component observes Expr, its variants are kept deliberately orthogonal: each is a language concept, not an implementation shortcut.

Arc<str> is used for every identifier so that cloning a name into an opcode is a refcount bump rather than a byte copy. Recursive sub-expressions are Box<Expr> — owned, not shared — since the compiler rewrites the AST in-place (see reorder_and_operands).

Structs

PatchOp

SortKey

Enums

Arg

ArrayElem

BinOp

BindTarget

CastType

Expr

FStringPart

FmtSpec

KindType

ObjField

PathStep

PipeStep

QuantifierKind

Step

Type Aliases

ExprRef

Shared reference to an expression (for lambdas stored in closures).