Top-Down Translation: Introduction
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• LL-grammar with attributes
• Two pushdown:
• parser pushdown × semantic pushdown
• Two type of attributes:
• synthesized:      iherited:
(from children to parent)
A
B
C
A.s
B.?
(from parent to children
or between siblings)
A
B
A.?
B.i
D
C
D
C.?
D.i