parser

type Options struct {
	// Optional Filename to name the source
	// this file is read if Source and Tokens are nil
	FileName string
	// Optional ddp-source-code
	// if nil, FileName is read
	Source []byte
	// Optional scanned token slice
	// if nil, Source is used
	Tokens []token.Token
	// maps modules that have already been passed by their filenames
	// the the parser may add new imported modules to this map
	// so that after passing it contains *at least* all modules
	// that the resulting module depends on
	Modules map[string]*ast.Module
	// ErrorHandler used during scanning and parsing
	// May be nil
	ErrorHandler ddperror.Handler
}

type ParserError struct {
	Err        error  // the error being wrapped (maybe nil)
	Msg        string // an additional message describing the error
	ModulePath string // the module that was parsed when this error occured
	StackTrace []byte // a stack trace
}