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Build macro env on top of global env

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Justin Ethier 2015-09-02 01:20:47 -04:00
parent 1244ea5342
commit 9a3d370de4
3 changed files with 9 additions and 8 deletions
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3
cyclone.scm
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@ -5,6 +5,7 @@
;; This module contains a front-end for the compiler itself. ;; This module contains a front-end for the compiler itself.
;; ;;
(import (scheme base) (import (scheme base)
(scheme eval)
(scheme file) (scheme file)
(scheme read) (scheme read)
(scheme write) (scheme write)
@ -121,7 +122,7 @@
(append (append
macros macros
*defined-macros*))) *defined-macros*)))
(macro:load-env! *defined-macros*) (macro:load-env! *defined-macros* (create-environment '() '()))
;TODO: try this again, make sure macro is loaded: ;TODO: try this again, make sure macro is loaded:
(trace:info (list 'defined-macros *defined-macros*)) (trace:info (list 'defined-macros *defined-macros*))
(trace:info (list 'macro-env (macro:get-env))) (trace:info (list 'macro-env (macro:get-env)))

12
scheme/cyclone/macros.sld
View file

@ -27,13 +27,13 @@
(cons (cons name body) *macro:defined-macros*)) (cons (cons name body) *macro:defined-macros*))
#t) #t)
(define (macro:load-env! defined-macros) (define (macro:load-env! defined-macros base-env)
(set! *macro:env* (env:extend-environment (set! *macro:env* (env:extend-environment
(map car defined-macros) (map car defined-macros)
(map (lambda (v) (map (lambda (v)
(list 'macro (cdr v))) (list 'macro (cdr v)))
defined-macros) defined-macros)
env:the-empty-environment))) base-env)))
(define (macro:get-env) *macro:env*) (define (macro:get-env) *macro:env*)
@ -54,10 +54,10 @@
(let* ((macro (assoc (car exp) defined-macros)) (let* ((macro (assoc (car exp) defined-macros))
(compiled-macro? (or (macro? (Cyc-get-cvar (cdr macro))) (compiled-macro? (or (macro? (Cyc-get-cvar (cdr macro)))
(procedure? (cdr macro))))) (procedure? (cdr macro)))))
(newline) ;(newline)
(display "/* ") ;(display "/* ")
(display (list 'macro:expand exp macro compiled-macro?)) ;(display (list 'macro:expand exp macro compiled-macro?))
(display "*/ ") ;(display "*/ ")
;; Invoke ER macro ;; Invoke ER macro
(cond (cond
((not macro) ((not macro)

2
scheme/cyclone/transforms.sld
View file

@ -791,7 +791,7 @@
; Newer macro expansion code, but not ready yet ; Newer macro expansion code, but not ready yet
((symbol? (car exp)) ((symbol? (car exp))
(let ((val (env:lookup (car exp) env #f))) (let ((val (env:lookup (car exp) env #f)))
(if val (if (tagged-list? 'macro val)
(expand ; Could expand into another macro (expand ; Could expand into another macro
(macro:expand 'val exp env *defined-macros*) (macro:expand 'val exp env *defined-macros*)
;(macro:expand2 exp val env) ;(macro:expand2 exp val env)