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;;;; ecmascript.test --- ECMAScript. -*- mode: scheme; coding: utf-8; -*-
;;;;
;;;; Copyright (C) 2010, 2011, 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
;;;; version 3 of the License, or (at your option) any later version.
;;;;
;;;; This library is distributed in the hope that it will be useful,
;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
(define-module (test-ecmascript)
#:use-module (test-suite lib)
#:use-module (language ecmascript parse)
#:use-module ((system base compile) #:select (compile)))
(define (eread str)
(call-with-input-string str read-ecmascript))
(define (eread/1 str)
(call-with-input-string str read-ecmascript/1))
(define-syntax parse
(syntax-rules ()
((_ expression expected)
(begin
(pass-if expression
(equal? expected (eread expression)))
(pass-if expression
(equal? expected (eread/1 expression)))))))
(with-test-prefix "parser"
(parse "true;" 'true)
(parse "2 + 2;" '(+ (number 2) (number 2)))
(parse "2\xa0+2;" '(+ (number 2) (number 2))) ; U+00A0 is whitespace
(parse "\"hello\";" '(string "hello"))
(parse "function square(x) { return x * x; }"
'(var (square (lambda (x) (return (* (ref x) (ref x)))))))
(parse "document.write('Hello, world!');"
'(call (pref (ref document) write) ((string "Hello, world!"))))
(parse "var x = { foo: 12, bar: \"hello\" };"
'(begin (var (x (object (foo (number 12))
(bar (string "hello")))))
(begin)))
(parse "\"\\x12\";" ; Latin-1 escape in string literal
'(string "\x12"))
(parse "\"\\u1234\";" ; Unicode escape in string literal
'(string "\u1234"))
(parse "function foo(x) { }" ; empty function body
'(var (foo (lambda (x) (begin)))))
(parse ".123;" '(number 0.123))
(parse "0xff;" '(number 255)))
(define-syntax ecompile
(syntax-rules ()
((_ expression)
(pass-if expression
(not (not
(compile (call-with-input-string expression read-ecmascript)
#:from 'ecmascript
#:to 'value)))))
((_ expression expected)
(pass-if expression
(equal? expected
(compile (call-with-input-string expression read-ecmascript)
#:from 'ecmascript
#:to 'value))))))
(with-test-prefix "compiler"
(ecompile "true;" #t)
(ecompile "if (3 > 2) true; else false;" #t)
(ecompile "2 + 2;" 4)
(ecompile "\"hello\";" "hello")
(ecompile "var test = { bar: 1 };")
;; FIXME: Broken!
;; (ecompile "[1,2,3,4].map(function(x) { return x * x; });"
;; '(1 4 9 16))
;; Examples from
;; <http://wingolog.org/archives/2009/02/22/ecmascript-for-guile>.
(ecompile "42 + \" good times!\";"
"42 good times!")
(ecompile "[0,1,2,3,4,5].length * 7;"
42))
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