Function fieldToType

stack/source.go:179–209

fieldToType returns the type name and whether if it's an ellipsis.

(f *ast.Field)

// fieldToType returns the type name and whether if it's an ellipsis.
func fieldToType(f *ast.Field) (string, bool) {
	switch arg := f.Type.(type) {
	case *ast.ArrayType:
		if arg.Len != nil {
			// Array.
			return "[" + name(arg.Len) + "]" + name(arg.Elt), false
		}
		// Slice.
		return "[]" + name(arg.Elt), false
	case *ast.Ellipsis:
		return name(arg.Elt), true
	case *ast.FuncType:
		// Do not print the function signature to not overload the trace.
		return "func", false
	case *ast.Ident:
		return arg.Name, false
	case *ast.InterfaceType:
		return "interface{}", false
	case *ast.SelectorExpr:
		return arg.Sel.Name, false
	case *ast.StarExpr:
		return "*" + name(arg.X), false
	case *ast.MapType:
		return fmt.Sprintf("map[%s]%s", name(arg.Key), name(arg.Value)), false
	case *ast.ChanType:
		return fmt.Sprintf("chan %s", name(arg.Value)), false
	default:
		// TODO(maruel): Implement anything missing.
		return "<unknown>", false
	}
}

// extractArgumentsType returns the name of the type of each input argument.
func extractArgumentsType(f *ast.FuncDecl) ([]string, bool) {