1 ;;; fuel-eval.el --- evaluating Factor expressions
3 ;; Copyright (C) 2008, 2009 Jose Antonio Ortega Ruiz
4 ;; See http://factorcode.org/license.txt for BSD license.
6 ;; Author: Jose Antonio Ortega Ruiz <jao@gnu.org>
8 ;; Start date: Tue Dec 02, 2008
12 ;; Protocols for sending evaluations to the Factor listener.
16 (require 'fuel-syntax)
17 (require 'fuel-connection)
21 (eval-when-compile (require 'cl))
24 ;;; Simple sexp-based representation of factor code
27 (cond ((null sexp) "f")
29 ((or (stringp sexp) (numberp sexp)) (format "%S" sexp))
30 ((vectorp sexp) (factor (cons :quotation (append sexp nil))))
33 (:array (factor--seq 'V{ '} (cdr sexp)))
34 (:quote (format "\\ %s" (factor `(:factor ,(cadr sexp)))))
35 (:quotation (factor--seq '\[ '\] (cdr sexp)))
36 (:using (factor `(USING: ,@(cdr sexp) :end)))
37 (:factor (format "%s" (mapconcat 'identity (cdr sexp) " ")))
38 (:fuel (factor--fuel-factor (cons :rs (cdr sexp))))
39 (:fuel* (factor--fuel-factor (cons :nrs (cdr sexp))))
40 (t (mapconcat 'factor sexp " "))))
43 (:rs 'fuel-eval-restartable)
44 (:nrs 'fuel-eval-non-restartable)
45 (:in (fuel-syntax--current-vocab))
46 (:usings `(:array ,@(fuel-syntax--usings)))
47 (:get 'fuel-eval-set-result)
49 (t `(:factor ,(symbol-name sexp))))))
50 ((symbolp sexp) (symbol-name sexp))))
52 (defsubst factor--seq (begin end forms)
53 (format "%s %s %s" begin (if forms (factor forms) "") end))
55 (defsubst factor--fuel-factor (sexp)
56 (factor `(,(factor--fuel-restart (nth 0 sexp))
57 ,(factor--fuel-lines (nth 1 sexp))
58 ,(factor--fuel-in (nth 2 sexp))
59 ,(factor--fuel-usings (nth 3 sexp))
60 fuel-eval-in-context)))
62 (defsubst factor--fuel-restart (rs)
63 (unless (member rs '(:rs :nrs))
64 (error "Invalid restart spec (%s)" rs))
67 (defsubst factor--fuel-lines (lst)
68 (cons :array (mapcar 'factor lst)))
70 (defsubst factor--fuel-in (in)
71 (cond ((or (eq in :in) (null in)) :in)
73 ((eq in 't) "fuel-scratchpad")
75 (t (error "Invalid 'in' (%s)" in))))
77 (defsubst factor--fuel-usings (usings)
78 (cond ((null usings) :usings)
80 ((listp usings) `(:array ,@usings))
81 (t (error "Invalid 'usings' (%s)" usings))))
86 (defvar fuel-eval--default-proc-function nil)
87 (defsubst fuel-eval--default-proc ()
88 (and fuel-eval--default-proc-function
89 (funcall fuel-eval--default-proc-function)))
91 (defvar fuel-eval--proc nil)
93 (defvar fuel-eval--sync-retort nil)
95 (defun fuel-eval--send/wait (code &optional timeout buffer)
96 (setq fuel-eval--sync-retort nil)
97 (fuel-con--send-string/wait (or fuel-eval--proc (fuel-eval--default-proc))
98 (if (stringp code) code (factor code))
100 (setq fuel-eval--sync-retort
101 (fuel-eval--parse-retort s)))
104 fuel-eval--sync-retort)
106 (defun fuel-eval--send (code cont &optional buffer)
107 (fuel-con--send-string (or fuel-eval--proc (fuel-eval--default-proc))
108 (if (stringp code) code (factor code))
109 `(lambda (s) (,cont (fuel-eval--parse-retort s)))
113 ;;; Retort and retort-error datatypes:
115 (defsubst fuel-eval--retort-make (err result &optional output)
116 (list err result output))
118 (defsubst fuel-eval--retort-error (ret) (nth 0 ret))
119 (defsubst fuel-eval--retort-result (ret) (nth 1 ret))
120 (defsubst fuel-eval--retort-output (ret) (nth 2 ret))
122 (defsubst fuel-eval--retort-p (ret)
123 (and (listp ret) (= 3 (length ret))))
125 (defsubst fuel-eval--make-parse-error-retort (str)
126 (fuel-eval--retort-make (cons 'fuel-parse-retort-error str) nil))
128 (defun fuel-eval--parse-retort (ret)
129 (fuel-log--info "RETORT: %S" ret)
130 (if (fuel-eval--retort-p ret) ret
131 (fuel-eval--make-parse-error-retort ret)))
133 (defsubst fuel-eval--error-name (err) (car err))
135 (defun fuel-eval--error-name-p (err name)
137 (or (and (eq (fuel-eval--error-name err) name) err)
140 (defsubst fuel-eval--error-restarts (err)
141 (cdr (assoc :restarts (or (fuel-eval--error-name-p err 'condition)
142 (fuel-eval--error-name-p err 'lexer-error)))))
144 (defsubst fuel-eval--error-file (err)
145 (nth 1 (fuel-eval--error-name-p err 'source-file-error)))
147 (defsubst fuel-eval--error-lexer-p (err)
148 (or (fuel-eval--error-name-p err 'lexer-error)
149 (fuel-eval--error-name-p (fuel-eval--error-name-p err 'source-file-error)
152 (defsubst fuel-eval--error-line/column (err)
153 (let ((err (fuel-eval--error-lexer-p err)))
154 (cons (nth 1 err) (nth 2 err))))
156 (defsubst fuel-eval--error-line-text (err)
157 (nth 3 (fuel-eval--error-lexer-p err)))
161 ;;; fuel-eval.el ends here