}

func (p *parser) init(filename string, src io.Reader, imports map[string]*types.Package) {
	p.scanner = new(scanner.Scanner)
	p.initScanner(filename, src)
	p.imports = imports
	p.aliases = make(map[int]string)
	p.typeList = make([]types.Type, 1 /* type numbers start at 1 */, 16)
}

func (p *parser) initScanner(filename string, src io.Reader) {
	p.scanner.Init(src)
	p.scanner.Error = func(_ *scanner.Scanner, msg string) { p.error(msg) }