js/src/tests/js1_8_1/strict/shell.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/src/tests/js1_8_1/strict/shell.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,88 @@
     1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
     1.5 +
     1.6 +/*
     1.7 + * Any copyright is dedicated to the Public Domain.
     1.8 + * http://creativecommons.org/licenses/publicdomain/
     1.9 + */
    1.10 +
    1.11 +
    1.12 +/*
    1.13 + * Return true if both of these return true:
    1.14 + * - LENIENT_PRED applied to CODE
    1.15 + * - STRICT_PRED applied to CODE with a use strict directive added to the front
    1.16 + *
    1.17 + * Run STRICT_PRED first, for testing code that affects the global environment
    1.18 + * in loose mode, but fails in strict mode.
    1.19 + */
    1.20 +function testLenientAndStrict(code, lenient_pred, strict_pred) {
    1.21 +  return (strict_pred("'use strict'; " + code) && 
    1.22 +          lenient_pred(code));
    1.23 +}
    1.24 +
    1.25 +/*
    1.26 + * completesNormally(CODE) returns true if evaluating CODE (as eval
    1.27 + * code) completes normally (rather than throwing an exception).
    1.28 + */
    1.29 +function completesNormally(code) {
    1.30 +  try {
    1.31 +    eval(code);
    1.32 +    return true;
    1.33 +  } catch (exception) {
    1.34 +    return false;
    1.35 +  }
    1.36 +}
    1.37 +
    1.38 +/*
    1.39 + * raisesException(EXCEPTION)(CODE) returns true if evaluating CODE (as eval
    1.40 + * code) throws an exception object whose prototype is
    1.41 + * EXCEPTION.prototype, and returns false if it throws any other error
    1.42 + * or evaluates successfully. For example: raises(TypeError)("0()") ==
    1.43 + * true.
    1.44 + */
    1.45 +function raisesException(exception) {
    1.46 +  return function (code) {
    1.47 +    try {
    1.48 +      eval(code);
    1.49 +      return false;
    1.50 +    } catch (actual) {
    1.51 +      return exception.prototype.isPrototypeOf(actual);
    1.52 +    }
    1.53 +  };
    1.54 +};
    1.55 +
    1.56 +/*
    1.57 + * parsesSuccessfully(CODE) returns true if CODE parses as function
    1.58 + * code without an error.
    1.59 + */
    1.60 +function parsesSuccessfully(code) {
    1.61 +  try {
    1.62 +    Function(code);
    1.63 +    return true;
    1.64 +  } catch (exception) {
    1.65 +    return false;
    1.66 +  }
    1.67 +};
    1.68 +
    1.69 +/*
    1.70 + * parseRaisesException(EXCEPTION)(CODE) returns true if parsing CODE
    1.71 + * as function code raises EXCEPTION.
    1.72 + */
    1.73 +function parseRaisesException(exception) {
    1.74 +  return function (code) {
    1.75 +    try {
    1.76 +      Function(code);
    1.77 +      return false;
    1.78 +    } catch (actual) {
    1.79 +      return exception.prototype.isPrototypeOf(actual);
    1.80 +    }
    1.81 +  };
    1.82 +};
    1.83 +
    1.84 +/*
    1.85 + * Return the result of applying uneval to VAL, and replacing all runs
    1.86 + * of whitespace with a single horizontal space (poor man's
    1.87 + * tokenization).
    1.88 + */
    1.89 +function clean_uneval(val) {
    1.90 +  return uneval(val).replace(/\s+/g, ' ');
    1.91 +}

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