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430 lines
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430 lines
13 KiB
HTML
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<title>CodeMirror: Eiffel mode</title>
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<div id=nav>
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<a href="https://codemirror.net"><h1>CodeMirror</h1><img id=logo src="../../doc/logo.png"></a>
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<ul>
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<li><a href="../../index.html">Home</a>
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<li><a href="../../doc/manual.html">Manual</a>
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<ul>
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<li><a href="../index.html">Language modes</a>
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<li><a class=active href="#">Eiffel</a>
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</ul>
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</div>
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<article>
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<h2>Eiffel mode</h2>
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<form><textarea id="code" name="code">
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note
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description: "[
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Project-wide universal properties.
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This class is an ancestor to all developer-written classes.
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ANY may be customized for individual projects or teams.
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]"
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library: "Free implementation of ELKS library"
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status: "See notice at end of class."
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legal: "See notice at end of class."
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date: "$Date: 2013-01-25 11:49:00 -0800 (Fri, 25 Jan 2013) $"
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revision: "$Revision: 712 $"
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class
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ANY
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feature -- Customization
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feature -- Access
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generator: STRING
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-- Name of current object's generating class
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-- (base class of the type of which it is a direct instance)
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external
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"built_in"
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ensure
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generator_not_void: Result /= Void
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generator_not_empty: not Result.is_empty
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end
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generating_type: TYPE [detachable like Current]
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-- Type of current object
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-- (type of which it is a direct instance)
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do
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Result := {detachable like Current}
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ensure
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generating_type_not_void: Result /= Void
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end
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feature -- Status report
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conforms_to (other: ANY): BOOLEAN
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-- Does type of current object conform to type
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-- of `other' (as per Eiffel: The Language, chapter 13)?
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require
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other_not_void: other /= Void
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external
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"built_in"
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end
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same_type (other: ANY): BOOLEAN
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-- Is type of current object identical to type of `other'?
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require
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other_not_void: other /= Void
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external
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"built_in"
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ensure
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definition: Result = (conforms_to (other) and
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other.conforms_to (Current))
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end
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feature -- Comparison
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is_equal (other: like Current): BOOLEAN
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-- Is `other' attached to an object considered
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-- equal to current object?
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require
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other_not_void: other /= Void
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external
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"built_in"
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ensure
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symmetric: Result implies other ~ Current
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consistent: standard_is_equal (other) implies Result
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end
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frozen standard_is_equal (other: like Current): BOOLEAN
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-- Is `other' attached to an object of the same type
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-- as current object, and field-by-field identical to it?
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require
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other_not_void: other /= Void
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external
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"built_in"
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ensure
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same_type: Result implies same_type (other)
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symmetric: Result implies other.standard_is_equal (Current)
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end
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frozen equal (a: detachable ANY; b: like a): BOOLEAN
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-- Are `a' and `b' either both void or attached
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-- to objects considered equal?
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do
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if a = Void then
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Result := b = Void
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else
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Result := b /= Void and then
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a.is_equal (b)
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end
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ensure
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definition: Result = (a = Void and b = Void) or else
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((a /= Void and b /= Void) and then
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a.is_equal (b))
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end
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frozen standard_equal (a: detachable ANY; b: like a): BOOLEAN
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-- Are `a' and `b' either both void or attached to
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-- field-by-field identical objects of the same type?
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-- Always uses default object comparison criterion.
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do
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if a = Void then
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Result := b = Void
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else
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Result := b /= Void and then
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a.standard_is_equal (b)
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end
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ensure
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definition: Result = (a = Void and b = Void) or else
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((a /= Void and b /= Void) and then
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a.standard_is_equal (b))
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end
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frozen is_deep_equal (other: like Current): BOOLEAN
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-- Are `Current' and `other' attached to isomorphic object structures?
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require
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other_not_void: other /= Void
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external
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"built_in"
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ensure
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shallow_implies_deep: standard_is_equal (other) implies Result
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same_type: Result implies same_type (other)
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symmetric: Result implies other.is_deep_equal (Current)
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end
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frozen deep_equal (a: detachable ANY; b: like a): BOOLEAN
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-- Are `a' and `b' either both void
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-- or attached to isomorphic object structures?
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do
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if a = Void then
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Result := b = Void
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else
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Result := b /= Void and then a.is_deep_equal (b)
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end
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ensure
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shallow_implies_deep: standard_equal (a, b) implies Result
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both_or_none_void: (a = Void) implies (Result = (b = Void))
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same_type: (Result and (a /= Void)) implies (b /= Void and then a.same_type (b))
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symmetric: Result implies deep_equal (b, a)
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end
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feature -- Duplication
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frozen twin: like Current
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-- New object equal to `Current'
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-- `twin' calls `copy'; to change copying/twinning semantics, redefine `copy'.
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external
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"built_in"
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ensure
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twin_not_void: Result /= Void
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is_equal: Result ~ Current
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end
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copy (other: like Current)
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-- Update current object using fields of object attached
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-- to `other', so as to yield equal objects.
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require
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other_not_void: other /= Void
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type_identity: same_type (other)
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external
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"built_in"
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ensure
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is_equal: Current ~ other
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end
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frozen standard_copy (other: like Current)
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-- Copy every field of `other' onto corresponding field
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-- of current object.
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require
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other_not_void: other /= Void
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type_identity: same_type (other)
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external
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"built_in"
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ensure
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is_standard_equal: standard_is_equal (other)
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end
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frozen clone (other: detachable ANY): like other
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-- Void if `other' is void; otherwise new object
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-- equal to `other'
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--
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-- For non-void `other', `clone' calls `copy';
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-- to change copying/cloning semantics, redefine `copy'.
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obsolete
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"Use `twin' instead."
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do
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if other /= Void then
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Result := other.twin
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end
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ensure
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equal: Result ~ other
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end
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frozen standard_clone (other: detachable ANY): like other
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-- Void if `other' is void; otherwise new object
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-- field-by-field identical to `other'.
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-- Always uses default copying semantics.
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obsolete
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"Use `standard_twin' instead."
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do
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if other /= Void then
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Result := other.standard_twin
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end
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ensure
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equal: standard_equal (Result, other)
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end
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frozen standard_twin: like Current
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-- New object field-by-field identical to `other'.
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-- Always uses default copying semantics.
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external
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"built_in"
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ensure
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standard_twin_not_void: Result /= Void
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equal: standard_equal (Result, Current)
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end
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frozen deep_twin: like Current
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-- New object structure recursively duplicated from Current.
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external
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"built_in"
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ensure
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deep_twin_not_void: Result /= Void
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deep_equal: deep_equal (Current, Result)
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end
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frozen deep_clone (other: detachable ANY): like other
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-- Void if `other' is void: otherwise, new object structure
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-- recursively duplicated from the one attached to `other'
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obsolete
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"Use `deep_twin' instead."
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do
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if other /= Void then
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Result := other.deep_twin
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end
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ensure
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deep_equal: deep_equal (other, Result)
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end
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frozen deep_copy (other: like Current)
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-- Effect equivalent to that of:
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-- `copy' (`other' . `deep_twin')
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require
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other_not_void: other /= Void
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do
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copy (other.deep_twin)
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ensure
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deep_equal: deep_equal (Current, other)
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end
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feature {NONE} -- Retrieval
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frozen internal_correct_mismatch
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-- Called from runtime to perform a proper dynamic dispatch on `correct_mismatch'
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-- from MISMATCH_CORRECTOR.
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local
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l_msg: STRING
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l_exc: EXCEPTIONS
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do
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if attached {MISMATCH_CORRECTOR} Current as l_corrector then
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l_corrector.correct_mismatch
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else
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create l_msg.make_from_string ("Mismatch: ")
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create l_exc
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l_msg.append (generating_type.name)
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l_exc.raise_retrieval_exception (l_msg)
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end
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end
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feature -- Output
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io: STD_FILES
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-- Handle to standard file setup
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once
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create Result
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Result.set_output_default
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ensure
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io_not_void: Result /= Void
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end
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out: STRING
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-- New string containing terse printable representation
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-- of current object
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do
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Result := tagged_out
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ensure
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out_not_void: Result /= Void
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end
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frozen tagged_out: STRING
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-- New string containing terse printable representation
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-- of current object
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external
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"built_in"
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ensure
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tagged_out_not_void: Result /= Void
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end
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print (o: detachable ANY)
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-- Write terse external representation of `o'
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-- on standard output.
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do
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if o /= Void then
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io.put_string (o.out)
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end
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end
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feature -- Platform
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Operating_environment: OPERATING_ENVIRONMENT
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-- Objects available from the operating system
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once
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create Result
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ensure
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operating_environment_not_void: Result /= Void
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end
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feature {NONE} -- Initialization
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default_create
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-- Process instances of classes with no creation clause.
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-- (Default: do nothing.)
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do
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end
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feature -- Basic operations
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default_rescue
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-- Process exception for routines with no Rescue clause.
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-- (Default: do nothing.)
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do
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end
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frozen do_nothing
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-- Execute a null action.
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do
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end
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frozen default: detachable like Current
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-- Default value of object's type
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do
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end
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frozen default_pointer: POINTER
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-- Default value of type `POINTER'
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-- (Avoid the need to write `p'.`default' for
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-- some `p' of type `POINTER'.)
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do
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ensure
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-- Result = Result.default
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end
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frozen as_attached: attached like Current
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-- Attached version of Current
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-- (Can be used during transitional period to convert
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-- non-void-safe classes to void-safe ones.)
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do
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Result := Current
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end
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invariant
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reflexive_equality: standard_is_equal (Current)
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reflexive_conformance: conforms_to (Current)
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note
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copyright: "Copyright (c) 1984-2012, Eiffel Software and others"
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license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
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source: "[
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Eiffel Software
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5949 Hollister Ave., Goleta, CA 93117 USA
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Telephone 805-685-1006, Fax 805-685-6869
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Website http://www.eiffel.com
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Customer support http://support.eiffel.com
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]"
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end
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</textarea></form>
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<script>
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var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
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mode: "text/x-eiffel",
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indentUnit: 4,
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lineNumbers: true,
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theme: "neat"
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});
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</script>
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<p><strong>MIME types defined:</strong> <code>text/x-eiffel</code>.</p>
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<p> Created by <a href="https://github.com/ynh">YNH</a>.</p>
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</article>
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