strict digraph corresp {
graph [ratio=1,ordering=out]
AClass
AMethod
ABlock
ClassTree [shape=box]
MethodTree [shape=box]
BlockTree [shape=box]
z1 [label="..."]
z2 [label="..."]
AClass -> AMethod -> ABlock -> z1
ClassTree -> MethodTree -> BlockTree -> z2
AClass -> ClassTree [style=dashed,constraint=false]
AMethod -> MethodTree [style=dashed,constraint=false]
ABlock -> BlockTree [style=dashed,constraint=false]
}