52 lines
1.1 KiB
Common Lisp
52 lines
1.1 KiB
Common Lisp
;;;; cl-scopes/core - here comes the real action
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(defpackage :scopes/core
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(:use :common-lisp)
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(:local-nicknames (:config :scopes/config))
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(:export #:config #:service-config
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#:context #:name #:send
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#:printer))
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(in-package :scopes/core)
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;;;; config
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(defclass config (config:root)
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(services))
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(defclass service-config (config:base)
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(start))
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;;;; actions
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(defclass action-spec ()
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((pattern :initarg :pattern :initform nil)
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(handlers :reader handlers :initarg :handlers)))
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;;;; context
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(defclass context ()
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((name :reader name :initarg :name)
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(actions :accessor actions :initform nil)))
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(defgeneric send (rcvr msg)
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(:method ((rcvr context) msg)
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(let* ((acts (actions rcvr))
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(selected (car acts)))
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(dolist (hdlr (handlers selected))
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(funcall hdlr msg)))))
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(defvar *context* nil)
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;;;; simple printer service
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(defun do-print (msg)
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(format t "~&~s~%" msg))
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(defclass printer (context)
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((actions :initform
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(list (make-instance 'action-spec
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:handlers (list #'do-print))))))
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(defun printer (name)
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(make-instance 'printer :name name))
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