parser

func MemberReceiverFor ¶ added in v0.60.0

func MemberReceiverFor(source, probe string) (ast.Expression, []ast.Param, bool)

MemberReceiverFor parses source and returns the receiver expression of the member access whose property is probe, together with the parameters of the function whose body encloses it.

Editor tooling needs the receiver at the cursor, and a bare trailing dot -- exactly what the buffer holds when completion fires -- is a syntax error that yields no member node at all. The caller therefore splices a probe name in at the cursor and asks for that member here.

The receiver is captured while parsing rather than found afterwards: the parser holds it at the moment it builds the member access, so recovering it later would mean walking the tree, and this package exposes no traversal. Parse errors elsewhere in the document are ignored, since a buffer under edit rarely parses cleanly as a whole.

func Parse ¶

func Parse(source string) (*ast.Program, []error)

Parse lexes and parses the given source text and returns the resulting AST together with any parse errors encountered. It is the stable entry point used by callers within the module.

func ParseTypeExpr ¶ added in v0.60.0

func ParseTypeExpr(source string) (*ast.TypeExpr, error)

ParseTypeExpr parses a standalone type annotation spelling ("array<int>", "{ name: string }", "int | nil") the way parameter and return annotations parse inside a script. The whole input must be a single type expression.