Libraries
Class Writer
extends Object
A lightweight writer wrapper that enhances the the user experience of the underlying writer.
The internal writer must have the following method:
write data -> intIt can optionally have
close and close_writer, which are transparently forwarded from the Writer to the internal writer.Constructors
constructor writer_/any
Constructs a writer
Methods
Closes the writer.
The internal writer must have a
close method.Closes the writer.
The internal writer must have a
close_writer method.Whether this object is equal to the other.
Inheritance
Classes overwrite this operator to get an equality specific to their needs. Equality operators often compare the type and field contents. For example:
class Pin:
number/int
constructor .number:
operator == other:
if other is not Pin: return false
return number == other.number
A class doesn't have to follow the above format, but it must keep the operator in sync with any
hash-code method. That is, if a class has a hash-code member, then the equality and hash-code must agree. If two instances are equal (a == b), then their hash codes must also be equal (a.hash-code == b.hash-code).Stringifies this object.
Inheritance
Objects that need a human-friendly string representation should overwrite this method. The default string is based on the internal class-ID.
Writes the given data.
The internal writer might not be able to handle all of the data in one go. In that case, the method invokes the internal writer's
write method multiple times until all data has been processed.If the internal writer has an error, it is not possible to see how much data was written. If it is necessary to know how much data was correctly written, then the internal writer must be used directly.
May yield.
Writes everything provided by the reader.