Postorder traversal
Joinpoint 'vardecl'
Joinpoint 'declStmt'
Joinpoint 'varref'
Joinpoint 'intLiteral'
Joinpoint 'intLiteral'
Joinpoint 'intLiteral'
Joinpoint 'binaryOp'
Joinpoint 'binaryOp'
Joinpoint 'binaryOp'
Joinpoint 'exprStmt'
Joinpoint 'body'