;;;; syntax.test --- test suite for Guile's syntactic forms -*- scheme -*-
;;;;
-;;;; Copyright (C) 2001,2003,2004, 2005, 2006, 2009, 2010 Free Software Foundation, Inc.
-;;;;
+;;;; Copyright (C) 2001, 2003, 2004, 2005, 2006, 2009, 2010,
+;;;; 2011, 2012, 2013 Free Software Foundation, Inc.
+;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
(define-module (test-suite test-syntax)
- :use-module (test-suite lib))
+ #:use-module (ice-9 regex)
+ #:use-module (ice-9 local-eval)
+ #:use-module (test-suite lib))
(define exception:generic-syncase-error
- (cons 'syntax-error "source expression failed to match"))
+ "source expression failed to match")
(define exception:unexpected-syntax
- (cons 'syntax-error "unexpected syntax"))
+ "unexpected syntax")
(define exception:bad-expression
- (cons 'syntax-error "Bad expression"))
+ "Bad expression")
(define exception:missing/extra-expr
- (cons 'syntax-error "Missing or extra expression"))
+ "Missing or extra expression")
(define exception:missing-expr
- (cons 'syntax-error "Missing expression"))
+ "Missing expression")
(define exception:missing-body-expr
- (cons 'syntax-error "no expressions in body"))
+ "no expressions in body")
(define exception:extra-expr
- (cons 'syntax-error "Extra expression"))
+ "Extra expression")
(define exception:illegal-empty-combination
- (cons 'syntax-error "Illegal empty combination"))
+ "Illegal empty combination")
(define exception:bad-lambda
- '(syntax-error . "bad lambda"))
+ "bad lambda")
(define exception:bad-let
- '(syntax-error . "bad let "))
+ "bad let$")
(define exception:bad-letrec
- '(syntax-error . "bad letrec "))
+ "bad letrec$")
+(define exception:bad-letrec*
+ "bad letrec\\*$")
(define exception:bad-set!
- '(syntax-error . "bad set!"))
+ "bad set!")
(define exception:bad-quote
- '(syntax-error . "quote: bad syntax"))
+ '(quote . "bad syntax"))
(define exception:bad-bindings
- (cons 'syntax-error "Bad bindings"))
+ "Bad bindings")
(define exception:bad-binding
- (cons 'syntax-error "Bad binding"))
+ "Bad binding")
(define exception:duplicate-binding
- (cons 'syntax-error "duplicate bound variable"))
+ "duplicate bound variable")
(define exception:bad-body
- (cons 'misc-error "^bad body"))
+ "^bad body")
(define exception:bad-formals
- '(syntax-error . "invalid argument list"))
+ "invalid argument list")
(define exception:bad-formal
- (cons 'syntax-error "Bad formal"))
+ "Bad formal")
(define exception:duplicate-formals
- (cons 'syntax-error "duplicate identifier in argument list"))
+ "duplicate identifier in argument list")
(define exception:missing-clauses
- (cons 'syntax-error "Missing clauses"))
+ "Missing clauses")
(define exception:misplaced-else-clause
- (cons 'syntax-error "Misplaced else clause"))
+ "Misplaced else clause")
(define exception:bad-case-clause
- (cons 'syntax-error "Bad case clause"))
+ "Bad case clause")
(define exception:bad-case-labels
- (cons 'syntax-error "Bad case labels"))
+ "Bad case labels")
(define exception:bad-cond-clause
- (cons 'syntax-error "Bad cond clause"))
+ "Bad cond clause")
(define exception:too-many-args
- (cons 'syntax-error "too many arguments"))
-
+ "too many arguments")
+(define exception:zero-expression-sequence
+ "sequence of zero expressions")
+
+
+;; (put 'pass-if-syntax-error 'scheme-indent-function 1)
+(define-syntax pass-if-syntax-error
+ (syntax-rules ()
+ ((_ name pat exp)
+ (pass-if name
+ (catch 'syntax-error
+ (lambda () exp (error "expected syntax-error exception"))
+ (lambda (k who what where form . maybe-subform)
+ (if (if (pair? pat)
+ (and (eq? who (car pat))
+ (string-match (cdr pat) what))
+ (string-match pat what))
+ #t
+ (error "unexpected syntax-error exception" what pat))))))))
(with-test-prefix "expressions"
(with-test-prefix "Bad argument list"
- (pass-if-exception "improper argument list of length 1"
+ (pass-if-syntax-error "improper argument list of length 1"
exception:generic-syncase-error
(eval '(let ((foo (lambda (x y) #t)))
(foo . 1))
(interaction-environment)))
- (pass-if-exception "improper argument list of length 2"
+ (pass-if-syntax-error "improper argument list of length 2"
exception:generic-syncase-error
(eval '(let ((foo (lambda (x y) #t)))
(foo 1 . 2))
;; valid expression.
;; Fixed on 2001-3-3
- (pass-if-exception "empty parentheses \"()\""
+ (pass-if-syntax-error "empty parentheses \"()\""
exception:unexpected-syntax
(eval '()
(interaction-environment)))))
(with-test-prefix "unquote-splicing"
- (pass-if-exception "extra arguments"
- '(syntax-error . "unquote-splicing takes exactly one argument")
- (eval '(quasiquote ((unquote-splicing (list 1 2) (list 3 4))))
- (interaction-environment)))))
+ (pass-if "extra arguments"
+ (equal? (eval '(quasiquote ((unquote-splicing (list 1 2) (list 3 4))))
+ (interaction-environment))
+ '(1 2 3 4)))))
(with-test-prefix "begin"
- (pass-if "legal (begin)"
+ (pass-if "valid (begin)"
(eval '(begin (begin) #t) (interaction-environment)))
- (pass-if-exception "illegal (begin)"
- exception:generic-syncase-error
- (eval '(begin (if #t (begin)) #t) (interaction-environment))))
+ (if (not (include-deprecated-features))
+ (pass-if-syntax-error "invalid (begin)"
+ exception:zero-expression-sequence
+ (eval '(begin (if #t (begin)) #t) (interaction-environment)))))
(define-syntax matches?
- (syntax-rules (_)
+ (syntax-rules (<>)
((_ (op arg ...) pat) (let ((x (op arg ...)))
(matches? x pat)))
((_ x ()) (null? x))
((_ x (a . b)) (and (pair? x)
(matches? (car x) a)
(matches? (cdr x) b)))
- ((_ x _) #t)
+ ((_ x <>) #t)
((_ x pat) (equal? x 'pat))))
(with-test-prefix "lambda"
(with-test-prefix "bad formals"
- (pass-if-exception "(lambda)"
+ (pass-if-syntax-error "(lambda)"
exception:bad-lambda
(eval '(lambda)
(interaction-environment)))
- (pass-if-exception "(lambda . \"foo\")"
+ (pass-if-syntax-error "(lambda . \"foo\")"
exception:bad-lambda
(eval '(lambda . "foo")
(interaction-environment)))
- (pass-if-exception "(lambda \"foo\")"
+ (pass-if-syntax-error "(lambda \"foo\")"
exception:bad-lambda
(eval '(lambda "foo")
(interaction-environment)))
- (pass-if-exception "(lambda \"foo\" #f)"
+ (pass-if-syntax-error "(lambda \"foo\" #f)"
exception:bad-formals
(eval '(lambda "foo" #f)
(interaction-environment)))
- (pass-if-exception "(lambda (x 1) 2)"
+ (pass-if-syntax-error "(lambda (x 1) 2)"
exception:bad-formals
(eval '(lambda (x 1) 2)
(interaction-environment)))
- (pass-if-exception "(lambda (1 x) 2)"
+ (pass-if-syntax-error "(lambda (1 x) 2)"
exception:bad-formals
(eval '(lambda (1 x) 2)
(interaction-environment)))
- (pass-if-exception "(lambda (x \"a\") 2)"
+ (pass-if-syntax-error "(lambda (x \"a\") 2)"
exception:bad-formals
(eval '(lambda (x "a") 2)
(interaction-environment)))
- (pass-if-exception "(lambda (\"a\" x) 2)"
+ (pass-if-syntax-error "(lambda (\"a\" x) 2)"
exception:bad-formals
(eval '(lambda ("a" x) 2)
(interaction-environment))))
(with-test-prefix "duplicate formals"
;; Fixed on 2001-3-3
- (pass-if-exception "(lambda (x x) 1)"
+ (pass-if-syntax-error "(lambda (x x) 1)"
exception:duplicate-formals
(eval '(lambda (x x) 1)
(interaction-environment)))
;; Fixed on 2001-3-3
- (pass-if-exception "(lambda (x x x) 1)"
+ (pass-if-syntax-error "(lambda (x x x) 1)"
exception:duplicate-formals
(eval '(lambda (x x x) 1)
(interaction-environment))))
(with-test-prefix "bad body"
- (pass-if-exception "(lambda ())"
+ (pass-if-syntax-error "(lambda ())"
exception:bad-lambda
(eval '(lambda ())
(interaction-environment)))))
(with-test-prefix "bad bindings"
- (pass-if-exception "(let)"
+ (pass-if-syntax-error "(let)"
exception:bad-let
(eval '(let)
(interaction-environment)))
- (pass-if-exception "(let 1)"
+ (pass-if-syntax-error "(let 1)"
exception:bad-let
(eval '(let 1)
(interaction-environment)))
- (pass-if-exception "(let (x))"
+ (pass-if-syntax-error "(let (x))"
exception:bad-let
(eval '(let (x))
(interaction-environment)))
- (pass-if-exception "(let ((x)))"
+ (pass-if-syntax-error "(let ((x)))"
exception:bad-let
(eval '(let ((x)))
(interaction-environment)))
- (pass-if-exception "(let (x) 1)"
+ (pass-if-syntax-error "(let (x) 1)"
exception:bad-let
(eval '(let (x) 1)
(interaction-environment)))
- (pass-if-exception "(let ((x)) 3)"
+ (pass-if-syntax-error "(let ((x)) 3)"
exception:bad-let
(eval '(let ((x)) 3)
(interaction-environment)))
- (pass-if-exception "(let ((x 1) y) x)"
+ (pass-if-syntax-error "(let ((x 1) y) x)"
exception:bad-let
(eval '(let ((x 1) y) x)
(interaction-environment)))
- (pass-if-exception "(let ((1 2)) 3)"
+ (pass-if-syntax-error "(let ((1 2)) 3)"
exception:bad-let
(eval '(let ((1 2)) 3)
(interaction-environment))))
(with-test-prefix "duplicate bindings"
- (pass-if-exception "(let ((x 1) (x 2)) x)"
+ (pass-if-syntax-error "(let ((x 1) (x 2)) x)"
exception:duplicate-binding
(eval '(let ((x 1) (x 2)) x)
(interaction-environment))))
(with-test-prefix "bad body"
- (pass-if-exception "(let ())"
+ (pass-if-syntax-error "(let ())"
exception:bad-let
(eval '(let ())
(interaction-environment)))
- (pass-if-exception "(let ((x 1)))"
+ (pass-if-syntax-error "(let ((x 1)))"
exception:bad-let
(eval '(let ((x 1)))
(interaction-environment)))))
(with-test-prefix "bad bindings"
- (pass-if-exception "(let x (y))"
+ (pass-if-syntax-error "(let x (y))"
exception:bad-let
(eval '(let x (y))
(interaction-environment))))
(with-test-prefix "bad body"
- (pass-if-exception "(let x ())"
+ (pass-if-syntax-error "(let x ())"
exception:bad-let
(eval '(let x ())
(interaction-environment)))
- (pass-if-exception "(let x ((y 1)))"
+ (pass-if-syntax-error "(let x ((y 1)))"
exception:bad-let
(eval '(let x ((y 1)))
(interaction-environment)))))
(with-test-prefix "bad bindings"
- (pass-if-exception "(let*)"
+ (pass-if-syntax-error "(let*)"
exception:generic-syncase-error
(eval '(let*)
(interaction-environment)))
- (pass-if-exception "(let* 1)"
+ (pass-if-syntax-error "(let* 1)"
exception:generic-syncase-error
(eval '(let* 1)
(interaction-environment)))
- (pass-if-exception "(let* (x))"
+ (pass-if-syntax-error "(let* (x))"
exception:generic-syncase-error
(eval '(let* (x))
(interaction-environment)))
- (pass-if-exception "(let* (x) 1)"
+ (pass-if-syntax-error "(let* (x) 1)"
exception:generic-syncase-error
(eval '(let* (x) 1)
(interaction-environment)))
- (pass-if-exception "(let* ((x)) 3)"
+ (pass-if-syntax-error "(let* ((x)) 3)"
exception:generic-syncase-error
(eval '(let* ((x)) 3)
(interaction-environment)))
- (pass-if-exception "(let* ((x 1) y) x)"
+ (pass-if-syntax-error "(let* ((x 1) y) x)"
exception:generic-syncase-error
(eval '(let* ((x 1) y) x)
(interaction-environment)))
- (pass-if-exception "(let* x ())"
+ (pass-if-syntax-error "(let* x ())"
exception:generic-syncase-error
(eval '(let* x ())
(interaction-environment)))
- (pass-if-exception "(let* x (y))"
+ (pass-if-syntax-error "(let* x (y))"
exception:generic-syncase-error
(eval '(let* x (y))
(interaction-environment)))
- (pass-if-exception "(let* ((1 2)) 3)"
+ (pass-if-syntax-error "(let* ((1 2)) 3)"
exception:generic-syncase-error
(eval '(let* ((1 2)) 3)
(interaction-environment))))
(with-test-prefix "bad body"
- (pass-if-exception "(let* ())"
+ (pass-if-syntax-error "(let* ())"
exception:generic-syncase-error
(eval '(let* ())
(interaction-environment)))
- (pass-if-exception "(let* ((x 1)))"
+ (pass-if-syntax-error "(let* ((x 1)))"
exception:generic-syncase-error
(eval '(let* ((x 1)))
(interaction-environment)))))
(with-test-prefix "bindings"
- (pass-if-exception "initial bindings are undefined"
+ (pass-if-syntax-error "initial bindings are undefined"
exception:used-before-defined
(let ((x 1))
;; FIXME: the memoizer does initialize the var to undefined, but
(with-test-prefix "bad bindings"
- (pass-if-exception "(letrec)"
+ (pass-if-syntax-error "(letrec)"
exception:bad-letrec
(eval '(letrec)
(interaction-environment)))
- (pass-if-exception "(letrec 1)"
+ (pass-if-syntax-error "(letrec 1)"
exception:bad-letrec
(eval '(letrec 1)
(interaction-environment)))
- (pass-if-exception "(letrec (x))"
+ (pass-if-syntax-error "(letrec (x))"
exception:bad-letrec
(eval '(letrec (x))
(interaction-environment)))
- (pass-if-exception "(letrec (x) 1)"
+ (pass-if-syntax-error "(letrec (x) 1)"
exception:bad-letrec
(eval '(letrec (x) 1)
(interaction-environment)))
- (pass-if-exception "(letrec ((x)) 3)"
+ (pass-if-syntax-error "(letrec ((x)) 3)"
exception:bad-letrec
(eval '(letrec ((x)) 3)
(interaction-environment)))
- (pass-if-exception "(letrec ((x 1) y) x)"
+ (pass-if-syntax-error "(letrec ((x 1) y) x)"
exception:bad-letrec
(eval '(letrec ((x 1) y) x)
(interaction-environment)))
- (pass-if-exception "(letrec x ())"
+ (pass-if-syntax-error "(letrec x ())"
exception:bad-letrec
(eval '(letrec x ())
(interaction-environment)))
- (pass-if-exception "(letrec x (y))"
+ (pass-if-syntax-error "(letrec x (y))"
exception:bad-letrec
(eval '(letrec x (y))
(interaction-environment)))
- (pass-if-exception "(letrec ((1 2)) 3)"
+ (pass-if-syntax-error "(letrec ((1 2)) 3)"
exception:bad-letrec
(eval '(letrec ((1 2)) 3)
(interaction-environment))))
(with-test-prefix "duplicate bindings"
- (pass-if-exception "(letrec ((x 1) (x 2)) x)"
+ (pass-if-syntax-error "(letrec ((x 1) (x 2)) x)"
exception:duplicate-binding
(eval '(letrec ((x 1) (x 2)) x)
(interaction-environment))))
(with-test-prefix "bad body"
- (pass-if-exception "(letrec ())"
+ (pass-if-syntax-error "(letrec ())"
exception:bad-letrec
(eval '(letrec ())
(interaction-environment)))
- (pass-if-exception "(letrec ((x 1)))"
+ (pass-if-syntax-error "(letrec ((x 1)))"
exception:bad-letrec
(eval '(letrec ((x 1)))
(interaction-environment)))))
+(with-test-prefix "letrec*"
+
+ (with-test-prefix "bindings"
+
+ (pass-if-syntax-error "initial bindings are undefined"
+ exception:used-before-defined
+ (begin
+ ;; FIXME: the memoizer does initialize the var to undefined, but
+ ;; the Scheme evaluator has no way of checking what's an
+ ;; undefined value. Not sure how to do this.
+ (throw 'unresolved)
+ (letrec* ((x y) (y 1)) y))))
+
+ (with-test-prefix "bad bindings"
+
+ (pass-if-syntax-error "(letrec*)"
+ exception:bad-letrec*
+ (eval '(letrec*)
+ (interaction-environment)))
+
+ (pass-if-syntax-error "(letrec* 1)"
+ exception:bad-letrec*
+ (eval '(letrec* 1)
+ (interaction-environment)))
+
+ (pass-if-syntax-error "(letrec* (x))"
+ exception:bad-letrec*
+ (eval '(letrec* (x))
+ (interaction-environment)))
+
+ (pass-if-syntax-error "(letrec* (x) 1)"
+ exception:bad-letrec*
+ (eval '(letrec* (x) 1)
+ (interaction-environment)))
+
+ (pass-if-syntax-error "(letrec* ((x)) 3)"
+ exception:bad-letrec*
+ (eval '(letrec* ((x)) 3)
+ (interaction-environment)))
+
+ (pass-if-syntax-error "(letrec* ((x 1) y) x)"
+ exception:bad-letrec*
+ (eval '(letrec* ((x 1) y) x)
+ (interaction-environment)))
+
+ (pass-if-syntax-error "(letrec* x ())"
+ exception:bad-letrec*
+ (eval '(letrec* x ())
+ (interaction-environment)))
+
+ (pass-if-syntax-error "(letrec* x (y))"
+ exception:bad-letrec*
+ (eval '(letrec* x (y))
+ (interaction-environment)))
+
+ (pass-if-syntax-error "(letrec* ((1 2)) 3)"
+ exception:bad-letrec*
+ (eval '(letrec* ((1 2)) 3)
+ (interaction-environment))))
+
+ (with-test-prefix "duplicate bindings"
+
+ (pass-if-syntax-error "(letrec* ((x 1) (x 2)) x)"
+ exception:duplicate-binding
+ (eval '(letrec* ((x 1) (x 2)) x)
+ (interaction-environment))))
+
+ (with-test-prefix "bad body"
+
+ (pass-if-syntax-error "(letrec* ())"
+ exception:bad-letrec*
+ (eval '(letrec* ())
+ (interaction-environment)))
+
+ (pass-if-syntax-error "(letrec* ((x 1)))"
+ exception:bad-letrec*
+ (eval '(letrec* ((x 1)))
+ (interaction-environment))))
+
+ (with-test-prefix "referencing previous values"
+ (pass-if (equal? (letrec ((a (cons 'foo 'bar))
+ (b a))
+ b)
+ '(foo . bar)))
+ (pass-if (equal? (let ()
+ (define a (cons 'foo 'bar))
+ (define b a)
+ b)
+ '(foo . bar)))))
+
(with-test-prefix "if"
(with-test-prefix "missing or extra expressions"
- (pass-if-exception "(if)"
+ (pass-if-syntax-error "(if)"
exception:generic-syncase-error
(eval '(if)
(interaction-environment)))
- (pass-if-exception "(if 1 2 3 4)"
+ (pass-if-syntax-error "(if 1 2 3 4)"
exception:generic-syncase-error
(eval '(if 1 2 3 4)
(interaction-environment)))))
(let ((=> 'ok))
(eq? 'ok (cond (#t identity =>) (else #f)))))
- (pass-if-exception "missing recipient"
- '(syntax-error . "cond: wrong number of receiver expressions")
- (cond (#t identity =>)))
+ (pass-if-syntax-error "missing recipient"
+ '(cond . "wrong number of receiver expressions")
+ (eval '(cond (#t identity =>))
+ (interaction-environment)))
- (pass-if-exception "extra recipient"
- '(syntax-error . "cond: wrong number of receiver expressions")
- (cond (#t identity => identity identity))))
+ (pass-if-syntax-error "extra recipient"
+ '(cond . "wrong number of receiver expressions")
+ (eval '(cond (#t identity => identity identity))
+ (interaction-environment))))
(with-test-prefix "bad or missing clauses"
- (pass-if-exception "(cond)"
+ (pass-if-syntax-error "(cond)"
exception:generic-syncase-error
(eval '(cond)
(interaction-environment)))
- (pass-if-exception "(cond #t)"
- exception:generic-syncase-error
+ (pass-if-syntax-error "(cond #t)"
+ '(cond . "invalid clause")
(eval '(cond #t)
(interaction-environment)))
- (pass-if-exception "(cond 1)"
- exception:generic-syncase-error
+ (pass-if-syntax-error "(cond 1)"
+ '(cond . "invalid clause")
(eval '(cond 1)
(interaction-environment)))
- (pass-if-exception "(cond 1 2)"
- exception:generic-syncase-error
+ (pass-if-syntax-error "(cond 1 2)"
+ '(cond . "invalid clause")
(eval '(cond 1 2)
(interaction-environment)))
- (pass-if-exception "(cond 1 2 3)"
- exception:generic-syncase-error
+ (pass-if-syntax-error "(cond 1 2 3)"
+ '(cond . "invalid clause")
(eval '(cond 1 2 3)
(interaction-environment)))
- (pass-if-exception "(cond 1 2 3 4)"
- exception:generic-syncase-error
+ (pass-if-syntax-error "(cond 1 2 3 4)"
+ '(cond . "invalid clause")
(eval '(cond 1 2 3 4)
(interaction-environment)))
- (pass-if-exception "(cond ())"
- exception:generic-syncase-error
+ (pass-if-syntax-error "(cond ())"
+ '(cond . "invalid clause")
(eval '(cond ())
(interaction-environment)))
- (pass-if-exception "(cond () 1)"
- exception:generic-syncase-error
+ (pass-if-syntax-error "(cond () 1)"
+ '(cond . "invalid clause")
(eval '(cond () 1)
(interaction-environment)))
- (pass-if-exception "(cond (1) 1)"
- exception:generic-syncase-error
+ (pass-if-syntax-error "(cond (1) 1)"
+ '(cond . "invalid clause")
(eval '(cond (1) 1)
+ (interaction-environment)))
+
+ (pass-if-syntax-error "(cond (else #f) (#t #t))"
+ '(cond . "else must be the last clause")
+ (eval '(cond (else #f) (#t #t))
(interaction-environment))))
(with-test-prefix "wrong number of arguments"
(pass-if "clause with empty labels list"
(case 1 (() #f) (else #t)))
+ (with-test-prefix "case handles '=> correctly"
+
+ (pass-if "(1 2 3) => list"
+ (equal? (case 1 ((1 2 3) => list))
+ '(1)))
+
+ (pass-if "else => list"
+ (equal? (case 6
+ ((1 2 3) 'wrong)
+ (else => list))
+ '(6)))
+
+ (with-test-prefix "bound '=> is handled correctly"
+
+ (pass-if "(1) => 'ok"
+ (let ((=> 'foo))
+ (eq? (case 1 ((1) => 'ok)) 'ok)))
+
+ (pass-if "else =>"
+ (let ((=> 'foo))
+ (eq? (case 1 (else =>)) 'foo)))
+
+ (pass-if "else => list"
+ (let ((=> 'foo))
+ (eq? (case 1 (else => identity)) identity))))
+
+ (pass-if-syntax-error "missing recipient"
+ '(case . "wrong number of receiver expressions")
+ (eval '(case 1 ((1) =>))
+ (interaction-environment)))
+
+ (pass-if-syntax-error "extra recipient"
+ '(case . "wrong number of receiver expressions")
+ (eval '(case 1 ((1) => identity identity))
+ (interaction-environment))))
+
(with-test-prefix "case is hygienic"
- (pass-if-exception "bound 'else is handled correctly"
- exception:generic-syncase-error
+ (pass-if-syntax-error "bound 'else is handled correctly"
+ '(case . "invalid clause")
(eval '(let ((else #f)) (case 1 (else #f)))
(interaction-environment))))
(with-test-prefix "bad or missing clauses"
- (pass-if-exception "(case)"
+ (pass-if-syntax-error "(case)"
exception:generic-syncase-error
(eval '(case)
(interaction-environment)))
- (pass-if-exception "(case . \"foo\")"
+ (pass-if-syntax-error "(case . \"foo\")"
exception:generic-syncase-error
(eval '(case . "foo")
(interaction-environment)))
- (pass-if-exception "(case 1)"
+ (pass-if-syntax-error "(case 1)"
exception:generic-syncase-error
(eval '(case 1)
(interaction-environment)))
- (pass-if-exception "(case 1 . \"foo\")"
+ (pass-if-syntax-error "(case 1 . \"foo\")"
exception:generic-syncase-error
(eval '(case 1 . "foo")
(interaction-environment)))
- (pass-if-exception "(case 1 \"foo\")"
- exception:generic-syncase-error
+ (pass-if-syntax-error "(case 1 \"foo\")"
+ '(case . "invalid clause")
(eval '(case 1 "foo")
(interaction-environment)))
- (pass-if-exception "(case 1 ())"
- exception:generic-syncase-error
+ (pass-if-syntax-error "(case 1 ())"
+ '(case . "invalid clause")
(eval '(case 1 ())
(interaction-environment)))
- (pass-if-exception "(case 1 (\"foo\"))"
- exception:generic-syncase-error
+ (pass-if-syntax-error "(case 1 (\"foo\"))"
+ '(case . "invalid clause")
(eval '(case 1 ("foo"))
(interaction-environment)))
- (pass-if-exception "(case 1 (\"foo\" \"bar\"))"
- exception:generic-syncase-error
+ (pass-if-syntax-error "(case 1 (\"foo\" \"bar\"))"
+ '(case . "invalid clause")
(eval '(case 1 ("foo" "bar"))
(interaction-environment)))
- (pass-if-exception "(case 1 ((2) \"bar\") . \"foo\")"
+ (pass-if-syntax-error "(case 1 ((2) \"bar\") . \"foo\")"
exception:generic-syncase-error
(eval '(case 1 ((2) "bar") . "foo")
(interaction-environment)))
- (pass-if-exception "(case 1 ((2) \"bar\") (else))"
- exception:generic-syncase-error
+ (pass-if-syntax-error "(case 1 ((2) \"bar\") (else))"
+ '(case . "invalid clause")
(eval '(case 1 ((2) "bar") (else))
(interaction-environment)))
- (pass-if-exception "(case 1 (else #f) . \"foo\")"
+ (pass-if-syntax-error "(case 1 (else #f) . \"foo\")"
exception:generic-syncase-error
(eval '(case 1 (else #f) . "foo")
(interaction-environment)))
- (pass-if-exception "(case 1 (else #f) ((1) #t))"
- exception:generic-syncase-error
+ (pass-if-syntax-error "(case 1 (else #f) ((1) #t))"
+ '(case . "else must be the last clause")
(eval '(case 1 (else #f) ((1) #t))
(interaction-environment)))))
(with-test-prefix "missing or extra expressions"
- (pass-if-exception "(define)"
+ (pass-if-syntax-error "(define)"
exception:generic-syncase-error
(eval '(define)
(interaction-environment)))))
(eq? 'c (a 2) (a 5)))))
(interaction-environment))))
- (pass-if-exception "missing body expression"
+ (pass-if-syntax-error "missing body expression"
exception:missing-body-expr
(eval '(let () (define x #t))
(interaction-environment))))
(with-test-prefix "missing or extra expressions"
- (pass-if-exception "(set!)"
+ (pass-if-syntax-error "(set!)"
exception:bad-set!
(eval '(set!)
(interaction-environment)))
- (pass-if-exception "(set! 1)"
+ (pass-if-syntax-error "(set! 1)"
exception:bad-set!
(eval '(set! 1)
(interaction-environment)))
- (pass-if-exception "(set! 1 2 3)"
+ (pass-if-syntax-error "(set! 1 2 3)"
exception:bad-set!
(eval '(set! 1 2 3)
(interaction-environment))))
(with-test-prefix "bad variable"
- (pass-if-exception "(set! \"\" #t)"
+ (pass-if-syntax-error "(set! \"\" #t)"
exception:bad-set!
(eval '(set! "" #t)
(interaction-environment)))
- (pass-if-exception "(set! 1 #t)"
+ (pass-if-syntax-error "(set! 1 #t)"
exception:bad-set!
(eval '(set! 1 #t)
(interaction-environment)))
- (pass-if-exception "(set! #t #f)"
+ (pass-if-syntax-error "(set! #t #f)"
exception:bad-set!
(eval '(set! #t #f)
(interaction-environment)))
- (pass-if-exception "(set! #f #t)"
+ (pass-if-syntax-error "(set! #f #t)"
exception:bad-set!
(eval '(set! #f #t)
(interaction-environment)))
- (pass-if-exception "(set! #\\space #f)"
+ (pass-if-syntax-error "(set! #\\space #f)"
exception:bad-set!
(eval '(set! #\space #f)
(interaction-environment)))))
(with-test-prefix "missing or extra expression"
- (pass-if-exception "(quote)"
+ (pass-if-syntax-error "(quote)"
exception:bad-quote
(eval '(quote)
(interaction-environment)))
- (pass-if-exception "(quote a b)"
+ (pass-if-syntax-error "(quote a b)"
exception:bad-quote
(eval '(quote a b)
(interaction-environment)))))
#t))))
- (pass-if-exception "too few args" exception:generic-syncase-error
+ (pass-if-syntax-error "too few args" exception:generic-syncase-error
(eval '(while) (interaction-environment)))
(with-test-prefix "empty body"
(with-test-prefix "break"
- (pass-if-exception "too many args" exception:too-many-args
- (eval '(while #t
- (break 1))
- (interaction-environment)))
-
+ (pass-if "normal return"
+ (not (while #f (error "not reached"))))
+
+ (pass-if "no args"
+ (while #t (break)))
+
+ (pass-if "multiple values"
+ (equal? '(1 2 3)
+ (call-with-values
+ (lambda () (while #t (break 1 2 3)))
+ list)))
+
(with-test-prefix "from cond"
(pass-if "first"
(while (begin
(with-test-prefix "continue"
- (pass-if-exception "too many args" exception:too-many-args
+ (pass-if-syntax-error "too many args" exception:too-many-args
(eval '(while #t
(continue 1))
(interaction-environment)))
(unreachable))))))
(r 'outer))
#t)))
+
+(with-test-prefix "syntax-rules"
+
+ (pass-if-equal "custom ellipsis within normal ellipsis"
+ '((((a x) (a y) (a …))
+ ((b x) (b y) (b …))
+ ((c x) (c y) (c …)))
+ (((a x) (b x) (c x))
+ ((a y) (b y) (c y))
+ ((a …) (b …) (c …))))
+ (let ()
+ (define-syntax foo
+ (syntax-rules ()
+ ((_ y ...)
+ (syntax-rules … ()
+ ((_ x …)
+ '((((x y) ...) …)
+ (((x y) …) ...)))))))
+ (define-syntax bar (foo x y …))
+ (bar a b c)))
+
+ (pass-if-equal "normal ellipsis within custom ellipsis"
+ '((((a x) (a y) (a z))
+ ((b x) (b y) (b z))
+ ((c x) (c y) (c z)))
+ (((a x) (b x) (c x))
+ ((a y) (b y) (c y))
+ ((a z) (b z) (c z))))
+ (let ()
+ (define-syntax foo
+ (syntax-rules … ()
+ ((_ y …)
+ (syntax-rules ()
+ ((_ x ...)
+ '((((x y) …) ...)
+ (((x y) ...) …)))))))
+ (define-syntax bar (foo x y z))
+ (bar a b c))))
+
+(with-test-prefix "syntax-error"
+
+ (pass-if-syntax-error "outside of macro without args"
+ "test error"
+ (eval '(syntax-error "test error")
+ (interaction-environment)))
+
+ (pass-if-syntax-error "outside of macro with args"
+ "test error x \\(y z\\)"
+ (eval '(syntax-error "test error" x (y z))
+ (interaction-environment)))
+
+ (pass-if-equal "within macro"
+ '(simple-let
+ "expected an identifier but got (z1 z2)"
+ (simple-let ((y (* x x))
+ ((z1 z2) (values x x)))
+ (+ y 1)))
+ (catch 'syntax-error
+ (lambda ()
+ (eval '(let ()
+ (define-syntax simple-let
+ (syntax-rules ()
+ ((_ (head ... ((x . y) val) . tail)
+ body1 body2 ...)
+ (syntax-error
+ "expected an identifier but got"
+ (x . y)))
+ ((_ ((name val) ...) body1 body2 ...)
+ ((lambda (name ...) body1 body2 ...)
+ val ...))))
+ (define (foo x)
+ (simple-let ((y (* x x))
+ ((z1 z2) (values x x)))
+ (+ y 1)))
+ foo)
+ (interaction-environment))
+ (error "expected syntax-error exception"))
+ (lambda (k who what where form . maybe-subform)
+ (list who what form)))))
+
+(with-test-prefix "syntax-case"
+
+ (pass-if-syntax-error "duplicate pattern variable"
+ '(syntax-case . "duplicate pattern variable")
+ (eval '(lambda (e)
+ (syntax-case e ()
+ ((a b c d e d f) #f)))
+ (interaction-environment)))
+
+ (with-test-prefix "misplaced ellipses"
+
+ (pass-if-syntax-error "bare ellipsis"
+ '(syntax-case . "misplaced ellipsis")
+ (eval '(lambda (e)
+ (syntax-case e ()
+ (... #f)))
+ (interaction-environment)))
+
+ (pass-if-syntax-error "ellipsis singleton"
+ '(syntax-case . "misplaced ellipsis")
+ (eval '(lambda (e)
+ (syntax-case e ()
+ ((...) #f)))
+ (interaction-environment)))
+
+ (pass-if-syntax-error "ellipsis in car"
+ '(syntax-case . "misplaced ellipsis")
+ (eval '(lambda (e)
+ (syntax-case e ()
+ ((... . _) #f)))
+ (interaction-environment)))
+
+ (pass-if-syntax-error "ellipsis in cdr"
+ '(syntax-case . "misplaced ellipsis")
+ (eval '(lambda (e)
+ (syntax-case e ()
+ ((_ . ...) #f)))
+ (interaction-environment)))
+
+ (pass-if-syntax-error "two ellipses in the same list"
+ '(syntax-case . "misplaced ellipsis")
+ (eval '(lambda (e)
+ (syntax-case e ()
+ ((x ... y ...) #f)))
+ (interaction-environment)))
+
+ (pass-if-syntax-error "three ellipses in the same list"
+ '(syntax-case . "misplaced ellipsis")
+ (eval '(lambda (e)
+ (syntax-case e ()
+ ((x ... y ... z ...) #f)))
+ (interaction-environment)))))
+
+(with-test-prefix "with-ellipsis"
+
+ (pass-if-equal "simple"
+ '(a 1 2 3)
+ (let ()
+ (define-syntax define-quotation-macros
+ (lambda (x)
+ (syntax-case x ()
+ ((_ (macro-name head-symbol) ...)
+ #'(begin (define-syntax macro-name
+ (lambda (x)
+ (with-ellipsis …
+ (syntax-case x ()
+ ((_ x …)
+ #'(quote (head-symbol x …)))))))
+ ...)))))
+ (define-quotation-macros (quote-a a) (quote-b b))
+ (quote-a 1 2 3)))
+
+ (pass-if-equal "disables normal ellipsis"
+ '(a ...)
+ (let ()
+ (define-syntax foo
+ (lambda (x)
+ (with-ellipsis …
+ (syntax-case x ()
+ ((_)
+ #'(quote (a ...)))))))
+ (foo)))
+
+ (pass-if-equal "doesn't affect ellipsis for generated code"
+ '(a b c)
+ (let ()
+ (define-syntax quotation-macro
+ (lambda (x)
+ (with-ellipsis …
+ (syntax-case x ()
+ ((_)
+ #'(lambda (x)
+ (syntax-case x ()
+ ((_ x ...)
+ #'(quote (x ...))))))))))
+ (define-syntax kwote (quotation-macro))
+ (kwote a b c)))
+
+ (pass-if-equal "propagates into syntax binders"
+ '(a b c)
+ (let ()
+ (with-ellipsis …
+ (define-syntax kwote
+ (lambda (x)
+ (syntax-case x ()
+ ((_ x …)
+ #'(quote (x …))))))
+ (kwote a b c))))
+
+ (pass-if-equal "works with local-eval"
+ 5
+ (let ((env (with-ellipsis … (the-environment))))
+ (local-eval '(syntax-case #'(a b c d e) ()
+ ((x …)
+ (length #'(x …))))
+ env))))
+
+;;; Local Variables:
+;;; eval: (put 'pass-if-syntax-error 'scheme-indent-function 1)
+;;; eval: (put 'with-ellipsis 'scheme-indent-function 1)
+;;; End:
HCoop / bpt / guile.git / blobdiff