Module ast 

AST of the runtime — the shape the tree-sitter CST lowers into (parse.rs), mirroring the reference implementation’s ast.ts.

Structs

Annotation

an annotation (§5.10): @name or @name(args) — metadata only (D4)

Decl

a declaration, with whether it is exported and its source range

ForClause

a comprehension clause

ImportItem

an imported name, possibly renamed

Loc

a source range: zero-based rows and columns (UTF-16 units, as the reference reads them from web-tree-sitter), end exclusive

MatchArm

an arm of a match

Param

a parameter of a function, a type, or a diagnostic

Enums

DeclBody

a declaration (§5, §8)

Expr

an expression (§4)

MemberAst

a member of a record type (§5)

TPart

a part of a template: text, or an interpolated expression

Tail

an else tail: an inline message with a severity, or a diagnostic reference

TypeAst

a type expression (§3; chapter 11)

Functions

expr_loc

An expression’s source range, when recorded.

expr_name

A short name for an expression, for messages.

mentions_referrers

does an expression mention $referrers anywhere? (deferred slots)

set_expr_loc

Record an expression’s source range.