CS450 Overview Compiler Design

CS450 Compiler Design

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2) Contextual Analysis --> Decorated AST

Program

LetCommand

SequentialDeclaration

n

Ident

Ident

Ident

Ident

SimpleT

VarDecl

SimpleT

VarDecl

Integer

c

Char

c

‘&’

n

n

+

1

Ident

Ident

Ident

Op

Char.Lit

Int.Lit

SimpleV

Char.Expr

SimpleV

VNameExp

Int.Expr

AssignCommand

BinaryExpr

SequentialCommand

AssignCommand

:char

:char

:int

:int

:int

:int

SimpleV

:int