cbc2eed900
defclass now has a new syntax:
(defclass Name [BaseList]
[property value
property value] ;; optional
(defn method [self]
self.property))
Anything after the optional property list (which will be translated to a
setv within the class context) will be added to the class body. This
allows one to have side effects and complex expressions within the class
definition.
As a side effect, defining methods is much more friendly now!
Closes #850.
Signed-off-by: Gergely Nagy <algernon@madhouse-project.org>
112 lines
2.5 KiB
Hy
112 lines
2.5 KiB
Hy
(defn test-defclass []
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"NATIVE: test defclass simple mechanism"
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(defclass A)
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(assert (isinstance (A) A)))
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(defn test-defclass-inheritance []
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"NATIVE: test defclass inheritance"
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(defclass A [])
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(assert (isinstance (A) object))
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(defclass A [object])
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(assert (isinstance (A) object))
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(defclass B [A])
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(assert (isinstance (B) A))
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(defclass C [object])
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(defclass D [B C])
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(assert (isinstance (D) A))
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(assert (isinstance (D) B))
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(assert (isinstance (D) C))
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(assert (not (isinstance (A) D))))
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(defn test-defclass-attrs []
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"NATIVE: test defclass attributes"
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(defclass A []
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[x 42])
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(assert (= A.x 42))
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(assert (= (getattr (A) "x") 42)))
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(defn test-defclass-attrs-fn []
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"NATIVE: test defclass attributes with fn"
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(defclass B []
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[x 42
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y (fn [self value]
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(+ self.x value))])
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(assert (= B.x 42))
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(assert (= (.y (B) 5) 47))
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(let [[b (B)]]
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(setv B.x 0)
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(assert (= (.y b 1) 1))))
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(defn test-defclass-dynamic-inheritance []
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"NATIVE: test defclass with dynamic inheritance"
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(defclass A [((fn [] (if true list dict)))]
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[x 42])
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(assert (isinstance (A) list))
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(defclass A [((fn [] (if false list dict)))]
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[x 42])
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(assert (isinstance (A) dict)))
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(defn test-defclass-no-fn-leak []
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"NATIVE: test defclass attributes with fn"
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(defclass A []
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[x (fn [] 1)])
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(try
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(do
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(x)
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(assert false))
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(except [NameError])))
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(defn test-defclass-docstring []
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"NATIVE: test defclass docstring"
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(defclass A []
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[--doc-- "doc string"
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x 1])
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(setv a (A))
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(assert (= a.__doc__ "doc string"))
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(defclass B []
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"doc string"
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[x 1])
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(setv b (B))
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(assert (= b.x 1))
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(assert (= b.__doc__ "doc string"))
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(defclass MultiLine []
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"begin a very long multi-line string to make
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sure that it comes out the way we hope
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and can span 3 lines end."
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[x 1])
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(setv mL (MultiLine))
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(assert (= mL.x 1))
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(assert (in "begin" mL.__doc__))
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(assert (in "end" mL.__doc__)))
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(defn test-defclass-macroexpand []
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"NATIVE: test defclass with macro expand"
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(defmacro M [] `(defn x [self x] (setv self._x x)))
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(defclass A [] (M))
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(setv a (A))
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(a.x 1)
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(assert (= a._x 1)))
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(defn test-defclass-syntax []
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"NATIVE: test defclass syntax with properties and methods and side-effects"
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(setv foo 1)
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(defclass A []
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[x 1
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y 2]
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(global foo)
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(setv foo 2)
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(defn greet [self]
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"Greet the caller"
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"hello!"))
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(setv a (A))
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(assert (= a.x 1))
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(assert (= a.y 2))
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(assert foo 2)
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(assert (.greet a) "hello"))
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