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This is the defvariant Reference Manual, version 1.1, generated automatically by Declt version 4.0 beta 2 "William Riker" on Mon Aug 15 04:25:50 2022 GMT+0.
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Variants for Common Lisp (for ML nostalgics ?)
(defpackage :try-defvariant
(:use :cl :defvariant))
(in-package :try-defvariant)
(defvariant btree
(leaf)
(node val left right))
=> MATCH-BTREE
(let ((my-tree
(make-btree-node :val 42
:left (make-btree-leaf)
:right (make-btree-leaf))))
(match-btree my-tree
(leaf _ "leaf !")
(node (v _ _) v)))
=> 42
See. defvariant.md for the whole story.
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The main system appears first, followed by any subsystem dependency.
Variants in Common Lisp.
Frederic Peschanski (format nil
BSD 2-Clause. See LICENSE.
1.1
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Files are sorted by type and then listed depth-first from the systems components trees.
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defvariant (system).
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defvariant (system).
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package.lisp (file).
defvariant (system).
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Packages are listed by definition order.
variant
common-lisp.
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Definitions are sorted by export status, category, package, and then by lexicographic order.
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error.
:message
This slot is read-only.
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Parameter for enabling/disabling
the ‘EXAMPLE‘ macro. Use NIL in production code.
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Show an evaluation example, useful for documentation and lightweight testing.
(example ‘EXPR‘ => ‘EXPECTED‘) evaluates ‘EXPR‘ and compare, wrt. ‘EQ?‘
(EQUAL by default) to ‘EXPECTED‘ and raise an error if inequal.
Set ‘WARN-ONLY‘ to T for warning instead of error.
An abbreviation for MULTIPLE-VALUE-BIND.
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Converts to a string and append all ‘ARGS‘.
Converts to a string, append and create a symbol from the result.
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