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(define-library (csc ir2)
(export
lambda-body
lambda-case-alternate
lambda-case-arguments
lambda-case-body
lambda-case-gensyms
lambda-case-rest
lambda-case?
make-lambda-case
; Re-exports from IR1.
call-arguments
call-procedure
call?
constant-expression
constant?
if-alternate
if-consequent
if-test
if?
lambda?
make-call
make-constant
make-if
make-lambda
make-sequence
make-toplevel-define
make-toplevel-ref
make-void
sequence-head
sequence-tail
sequence?
toplevel-define-expression
toplevel-define-name
toplevel-define?
toplevel-ref-name
toplevel-ref?
void?)
(import (scheme base)
(only (csc ir1)
call-arguments
call-procedure
call?
constant-expression
constant?
if-alternate
if-consequent
if-test
if?
lambda-body
lambda?
make-call
make-constant
make-if
make-lambda
make-sequence
make-toplevel-define
make-void
sequence-head
sequence-tail
sequence?
toplevel-define-expression
toplevel-define-name
toplevel-define?
void?))
(begin
; This library defines the intermediate representation IR2.
; It's CPS time bitch.
; An atom consists of an ir1 expression and a continuation.
(define-record-type <atom>
(make-atom expression continuation)
atom?
(expression atom-expression)
(continuation atom-continuation))
; <variable>
(define-record-type <variable>
(make-variable k var
; <closure-ref> idx
; Reference to a variable by index in the closure.
(define-record-type <closure-ref>
(make-closure-ref idx)
closure-ref?
(idx closure-ref-index))
; <lambda-case> arguments rest
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