75 lines
1.7 KiB
ReStructuredText
75 lines
1.7 KiB
ReStructuredText
.. _implementation:
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Components
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==========
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Library dependency tower for *xo-facet*:
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.. ditaa::
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+-----------------+
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| xo_facet |
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+-----------------+
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| xo_cmake |
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+-----------------+
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Abstraction tower for *xo-facet* components.
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.. ditaa::
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:--scale: 0.85
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+--------------------------------+
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| obj(A,D) |
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+--------------------------------+
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| RRouter(A,D) |
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+--------------------------------+
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| OObject(A,D) |
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+--------------------------------+
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| FacetImplType(A,D) |
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+----------------+---------------+
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| facet [A] | data [D] |
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+----------------+---------------+
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.. list-table:: Descriptions
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:header-rows: 1
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:widths: 18 30 50
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* - Component
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- Use
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- Description
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* - ``obj<A,D>``
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- ``x.foo()``
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- convenience wrapper with interface A, with state D*
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* - ``RRouter<A,D>``
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- ``x.foo()``
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- auto injects data pointer
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* - ``OObject<A,D>``
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- ``x.iface()->foo(x.data(), ..)``
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- fat object pointer. combine i/face + data pointer.
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* - ``FacetImplType<A,D>``
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- ``x.foo(void* data, ..)``
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- implement facet for a particular state datatype;
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explicit type-erased state
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* - facet
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- ``x.foo(void* data, ..)=0``
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- fully abstract interface; explicit type-erased state
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.. uml::
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:caption: fat-object-pointer layout
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:scale: 99%
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:align: center
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object z1<<obj>>
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z1 : iface = vt1
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z1 : data = d1
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object vt1<<interface>>
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vt1 : foo()
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vt1 : bar()
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object d1<<data>>
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d1 : x = 0.6
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d1 : y = 0.8
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z1 o-- vt1
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z1 o-- d1
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