Function fail

core/codegen/builder.go:47–50

(msg string, args ...interface{})

func (f buildFailure) String() string { return string(f) }

func fail(msg string, args ...interface{}) {
	str := fmt.Sprintf(msg, args...)
	panic(buildFailure(str))
}

// Call invokes the function f with the specified arguments
func (b *Builder) Call(f *Function, args ...*Value) *Value {