asttest

Documentation

Index

• func Fprint(t testing.TB, w io.Writer, fset *token.FileSet, x any, f ast.FieldFilter)
• func NewPackage(t testing.TB, fset *token.FileSet, files map[string]*ast.File, ...) *ast.Package
• func Print(t testing.TB, fset *token.FileSet, x any)

Functions

func Fprint

func Fprint(t testing.TB, w io.Writer, fset *token.FileSet, x any, f ast.FieldFilter)

Fprint prints the (sub-)tree starting at AST node x to w. If fset != nil, position information is interpreted relative to that file set. Otherwise positions are printed as integer values (file set specific offsets).

A non-nil [FieldFilter] f may be provided to control the output: struct fields for which f(fieldname, fieldvalue) is true are printed; all others are filtered from the output. Unexported struct fields are never printed.

func NewPackage

func NewPackage(t testing.TB, fset *token.FileSet, files map[string]*ast.File, importer ast.Importer, universe *ast.Scope) *ast.Package

NewPackage creates a new [Package] node from a set of [File] nodes. It resolves unresolved identifiers across files and updates each file's Unresolved list accordingly. If a non-nil importer and universe scope are provided, they are used to resolve identifiers not declared in any of the package files. Any remaining unresolved identifiers are reported as undeclared. If the files belong to different packages, one package name is selected and files with different package names are reported and then ignored. The result is a package node and a [scanner.ErrorList] if there were errors.

Deprecated: use the type checker go/types instead; see [Object].

func Print

func Print(t testing.TB, fset *token.FileSet, x any)

Print prints x to standard output, skipping nil fields. Print(fset, x) is the same as Fprint(os.Stdout, fset, x, NotNilFilter).