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cpython/Objects/object_layout_313.gv

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digraph ideal {
rankdir = "LR"
object [
shape = none
label = <<table border="0" cellspacing="0">
<tr><td><b>object</b></td></tr>
<tr><td port="w" border="1">weakrefs</td></tr>
<tr><td port="dv" border="1">dict pointer</td></tr>
<tr><td border="1" >GC info 0</td></tr>
<tr><td border="1" >GC info 1</td></tr>
<tr><td port="r" border="1" >refcount</td></tr>
<tr><td port="h" border="1" >__class__</td></tr>
<tr><td border="1">values flags</td></tr>
<tr><td port="0" border="1">values[0]</td></tr>
<tr><td border="1">values[1]</td></tr>
<tr><td border="1">...</td></tr>
<tr><td border="1">Insertion order</td></tr>
</table>>
]
class [
shape = none
label = <<table border="0" cellspacing="0">
<tr><td><b>class</b></td></tr>
<tr><td port="head" bgcolor="lightgreen" border="1">...</td></tr>
<tr><td border="1" bgcolor="lightgreen">dict_offset</td></tr>
<tr><td border="1" bgcolor="lightgreen">...</td></tr>
<tr><td port="k" border="1" bgcolor="lightgreen">cached_keys</td></tr>
</table>>
]
keys [label = "dictionary keys"; fillcolor="lightgreen"; style="filled"]
NULL [ label = " NULL"; shape="plain"]
object:w -> NULL
object:h -> class:head
object:dv -> NULL
class:k -> keys
oop [ label = "pointer"; shape="plain"]
oop -> object:r
}