Commit da6f1035 authored by Erick Gallesio's avatar Erick Gallesio

Fixed a bug in code for internal defines rewriting

parent 8d44ef52
......@@ -2072,7 +2072,7 @@ fi
# Define the identity of the package.
cat >>confdefs.h <<_ACEOF
......@@ -2,12 +2,12 @@ dnl for STklos
dnl Author: Erick Gallesio []
dnl Creation date: 28-Dec-1999 21:19 (eg)
dnl Last file update: 3-Nov-2006 22:35 (eg)
dnl Last file update: 11-Nov-2006 19:34 (eg)
AM_INIT_AUTOMAKE(stklos, 0.81)
AM_INIT_AUTOMAKE(stklos, 0.82)
......@@ -21,7 +21,7 @@
;;;; Author: Erick Gallesio []
;;;; Creation date: 26-Feb-2000 10:47 (eg)
;;;; Last file update: 8-Nov-2006 11:24 (eg)
;;;; Last file update: 13-Nov-2006 14:28 (eg)
(define-module STKLOS-COMPILER
......@@ -205,7 +205,7 @@ doc>
(compile (caddr l) '() args #f)
(emit 'DEFINE-SYMBOL (fetch-constant who)))
(compiler-error 'define args "bad variable name ~S" who))
(compiler-error 'define args "internal define forbidden here")))))
(compiler-error 'define args "internal define forbidden here ~S " args)))))
......@@ -487,15 +487,25 @@ doc>
(define (rewrite-body body)
(define (rewrite-body body env)
(let Loop ((l body) (defs '()))
((and (pair? l) (pair? (car l)) (eq? (caar l) 'begin))
;; Delete useless begin
(Loop (cdar l) defs))
;; Delete useless begin
(Loop (append (cdar l) (cdr l))
((and (pair? l) (pair? (car l)) (eq? (caar l) 'define))
;; This is an internal define
(Loop (cdr l) (cons (cdr (define->lambda (car l))) defs)))
((and (pair? l)
(pair? (car l))
(symbol? (caar l))
(not (symbol-in-env? (caar l) env))
(expander? (caar l)))
;; Macro-call: expand it
(Loop (cons (macro-expand (car l))
(cdr l))
;; We have parsed all the (starting) definitions
(if (null? defs)
......@@ -506,11 +516,12 @@ doc>
,@(map (lambda (x) `(set! ,@x)) defs)
(define (compile-user-lambda formals body arity env) ; i.e R5RS ones
(let ((env (extend-env env formals))
(lab (new-label)))
(emit 'CREATE-CLOSURE lab arity)
(compile (rewrite-body body) env body #t)
(compile (rewrite-body body env) env body #t)
(emit 'RETURN)
(emit-label lab)))
......@@ -606,12 +617,13 @@ doc>
`((if (pair? ,rest-name)
(error "too many optional parameters: ~a"
(vars (append (if opt (build-optional-let-header opt rest-name) '())
(if key (build-keyword-let-header key rest-name) '()))))
`(let* (,@(if opt (build-optional-let-header opt rest-name) '())
,@(if key (build-keyword-let-header key rest-name) '()))
,(rewrite-body body))))
(let () ,@body))))
(define (parse-parameter-list method? x)
;; Read the incoming lambda (or method) list, return a list of four lists,
......@@ -951,7 +963,8 @@ doc>
(arity (compute-arity formals)))
(if (or (= arity len)
(and (negative? arity) (>= len (- (- arity) 1))))
(let ((kind (if tail? 'ENTER-TAIL-LET 'ENTER-LET)))
(let ((kind (if tail? 'ENTER-TAIL-LET 'ENTER-LET))
(new-env (extend-env env formals)))
(generate-PREPARE-CALL epair)
(if (negative? arity)
......@@ -960,7 +973,7 @@ doc>
(compile-args actuals env)
(emit kind len)))
(compile (rewrite-body body) (extend-env env formals) epair tail?)
(compile (rewrite-body body new-env) new-env epair tail?)
(emit (if tail? 'RETURN 'LEAVE-LET)))
(compiler-error 'lambda epair "bad number of parameters ~S" actuals))))
......@@ -1014,7 +1027,7 @@ doc>
(let ((bindings (cadr args))
(body (cddr args)))
(if (null? bindings)
(compile (rewrite-body body) env body tail?)
(compile (rewrite-body body env) env body tail?)
(when (valid-let-bindings? bindings #t)
(let ((tmps (map (lambda (_) (gensym)) bindings)))
(compile `(let ,(map (lambda (x) (list (car x) #f)) bindings)
......@@ -1022,7 +1035,7 @@ doc>
tmps bindings)
,@(map (lambda (x y) `(set! ,(car y) ,x))
tmps bindings))
,(rewrite-body body))
(let () ,@body))
env args tail?))))))))
......@@ -1052,7 +1065,7 @@ doc>
(compile-named-let bindings (car body) (cdr body) len args env tail?)
(when (valid-let-bindings? bindings #t)
(if (null? bindings)
(compile `(begin ,@body) env args tail?)
(compile (rewrite-body body env) env args tail?)
(compile `((lambda ,(map car bindings) ,@body)
,@(map cadr bindings))
env args tail?))))))))
......@@ -1109,9 +1122,9 @@ doc>
(locals '()))
(if (null? l)
;; Compile body
(compile (rewrite-body body)
(extend-env env locals)
(let ((new-env (extend-env env locals)))
(compile (rewrite-body body new-env)
(emit (if tail? 'RETURN 'LEAVE-LET)))
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