v8/test/preparser/duplicate-parameter.pyt

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# Copyright 2011 the V8 project authors. All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials provided
# with the distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
# Templatated tests with duplicate parameter names.
# ----------------------------------------------------------------------
# Constants and utility functions
# A template that performs the same strict-mode test in different
# scopes (global scope, function scope, and nested function scope),
# and in non-strict mode too.
def DuplicateParameterTest(name, source):
expectation = "strict_param_dupe"
non_selfstrict = {"selfstrict":"", "id":"selfnormal"}
Template(name, '"use strict";\n' + source)(non_selfstrict, expectation)
Template(name + '-infunc',
'function foo() {\n "use strict";\n' + source +'\n}\n')(
non_selfstrict, expectation)
Template(name + '-infunc2',
'function foo() {\n "use strict";\n function bar() {\n' +
source +'\n }\n}\n')(non_selfstrict, expectation)
selfstrict = {"selfstrict": "\"use strict\";", "id": "selfstrict"}
nestedstrict = {"selfstrict": "function bar(){\"use strict\";}",
"id": "nestedstrict"}
selfstrictnestedclean = {"selfstrict": """
"use strict";
function bar(){}
""", "id": "selfstrictnestedclean"}
selftest = Template(name + '-$id', source)
selftest(selfstrict, expectation)
selftest(selfstrictnestedclean, expectation)
selftest(nestedstrict, None)
selftest(non_selfstrict, None)
# ----------------------------------------------------------------------
# Test templates
DuplicateParameterTest("dups", """
function foo(a, a) { $selfstrict }
""");
DuplicateParameterTest("dups-apart", """
function foo(a, b, c, d, e, f, g, h, i, j, k, l, m, n, a) { $selfstrict }
""");
DuplicateParameterTest("dups-escaped", """
function foo(\u0061, b, c, d, e, f, g, h, i, j, k, l, m, n, a) { $selfstrict }
""");
DuplicateParameterTest("triples", """
function foo(a, b, c, d, e, f, g, h, a, i, j, k, l, m, n, a) { $selfstrict }
""");
DuplicateParameterTest("escapes", """
function foo(a, \u0061) { $selfstrict }
""");
DuplicateParameterTest("long-names", """
function foo(arglebargleglopglyfarglebargleglopglyfarglebargleglopglyfa,
arglebargleglopglyfarglebargleglopglyfarglebargleglopglyfa) {
$selfstrict
}
""");