Method IsBuiltin

ast/ast.go:910–912

IsBuiltin returns true if this predicate symbol is for a built-in predicate.

()

// IsBuiltin returns true if this predicate symbol is for a built-in predicate.
func (p PredicateSym) IsBuiltin() bool {
	return strings.HasPrefix(p.Symbol, ":")
}

// Variable represents a variable by the name.
type Variable struct {