#!/usr/bin/python3
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#
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# Copyright (C) 2015 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Generate java test files for test 964.
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"""
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import os
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import sys
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from pathlib import Path
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BUILD_TOP = os.getenv("ANDROID_BUILD_TOP")
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if BUILD_TOP is None:
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print("ANDROID_BUILD_TOP not set. Please run build/envsetup.sh", file=sys.stderr)
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sys.exit(1)
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# Allow us to import utils and mixins.
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sys.path.append(str(Path(BUILD_TOP)/"art"/"test"/"utils"/"python"))
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from testgen.utils import get_copyright, subtree_sizes, gensym, filter_blanks
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import testgen.mixins as mixins
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from functools import total_ordering
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import itertools
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import string
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# The max depth the tree can have.
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MAX_IFACE_DEPTH = 3
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class MainClass(mixins.DumpMixin, mixins.Named, mixins.JavaFileMixin):
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"""
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A Main.java file containing the Main class and the main function. It will run
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all the test functions we have.
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"""
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MAIN_CLASS_TEMPLATE = """{copyright}
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class Main {{
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{test_groups}
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{main_func}
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}}
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"""
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MAIN_FUNCTION_TEMPLATE = """
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public static void main(String[] args) {{
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{test_group_invoke}
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}}
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"""
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TEST_GROUP_INVOKE_TEMPLATE = """
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{test_name}();
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"""
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def __init__(self):
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"""
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Initialize this MainClass. We start out with no tests.
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"""
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self.tests = set()
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def add_test(self, ty):
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"""
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Add a test for the concrete type 'ty'
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"""
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self.tests.add(Func(ty))
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def get_expected(self):
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"""
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Get the expected output of this test.
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"""
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all_tests = sorted(self.tests)
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return filter_blanks("\n".join(a.get_expected() for a in all_tests))
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def get_name(self):
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"""
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Gets the name of this class
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"""
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return "Main"
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def __str__(self):
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"""
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Print the java code for this test.
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"""
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all_tests = sorted(self.tests)
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test_invoke = ""
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test_groups = ""
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for t in all_tests:
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test_groups += str(t)
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for t in all_tests:
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test_invoke += self.TEST_GROUP_INVOKE_TEMPLATE.format(test_name=t.get_name())
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main_func = self.MAIN_FUNCTION_TEMPLATE.format(test_group_invoke=test_invoke)
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return self.MAIN_CLASS_TEMPLATE.format(copyright = get_copyright('java'),
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test_groups = test_groups,
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main_func = main_func)
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class Func(mixins.Named, mixins.NameComparableMixin):
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"""
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A function that tests the functionality of a concrete type. Should only be
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constructed by MainClass.add_test.
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"""
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TEST_FUNCTION_TEMPLATE = """
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public static void {fname}() {{
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try {{
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System.out.println("About to initialize {tree}");
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{farg} v = new {farg}();
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System.out.println("Initialized {tree}");
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v.touchAll();
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System.out.println("All of {tree} hierarchy initialized");
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return;
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}} catch (Error e) {{
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e.printStackTrace(System.out);
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return;
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}}
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}}
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"""
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OUTPUT_FORMAT = """
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About to initialize {tree}
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{initialize_output}
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Initialized {tree}
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{touch_output}
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All of {tree} hierarchy initialized
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""".strip()
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def __init__(self, farg):
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"""
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Initialize a test function for the given argument
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"""
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self.farg = farg
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def __str__(self):
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"""
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Print the java code for this test function.
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"""
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return self.TEST_FUNCTION_TEMPLATE.format(fname=self.get_name(),
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farg=self.farg.get_name(),
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tree = self.farg.get_tree())
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def get_name(self):
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"""
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Gets the name of this test function
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"""
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return "TEST_FUNC_{}".format(self.farg.get_name())
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def get_expected(self):
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"""
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Get the expected output of this function.
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"""
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return self.OUTPUT_FORMAT.format(
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tree = self.farg.get_tree(),
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initialize_output = self.farg.get_initialize_output().strip(),
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touch_output = self.farg.get_touch_output().strip())
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class TestClass(mixins.DumpMixin, mixins.Named, mixins.NameComparableMixin, mixins.JavaFileMixin):
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"""
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A class that will be instantiated to test interface initialization order.
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"""
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TEST_CLASS_TEMPLATE = """{copyright}
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public class {class_name} implements {ifaces} {{
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public void marker() {{
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return;
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}}
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public void touchAll() {{
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{touch_calls}
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}}
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}}
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"""
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TOUCH_CALL_TEMPLATE = """
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System.out.println("{class_name} touching {iface_name}");
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{iface_name}.field.touch();
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"""
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TOUCH_OUTPUT_TEMPLATE = """
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{class_name} touching {iface_name}
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{touch_output}
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""".strip()
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def __init__(self, ifaces):
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"""
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Initialize this test class which implements the given interfaces
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"""
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self.ifaces = ifaces
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self.class_name = "CLASS_"+gensym()
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def get_name(self):
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"""
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Gets the name of this interface
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"""
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return self.class_name
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def get_tree(self):
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"""
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Print out a representation of the type tree of this class
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"""
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return "[{fname} {iftree}]".format(fname = self.get_name(), iftree = print_tree(self.ifaces))
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def get_initialize_output(self):
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return "\n".join(map(lambda i: i.get_initialize_output().strip(), dump_tree(self.ifaces)))
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def get_touch_output(self):
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return "\n".join(map(lambda a: self.TOUCH_OUTPUT_TEMPLATE.format(
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class_name = self.class_name,
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iface_name = a.get_name(),
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touch_output = a.get_touch_output()).strip(),
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self.get_all_interfaces()))
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def get_all_interfaces(self):
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"""
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Returns a set of all interfaces this class transitively implements
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"""
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return sorted(set(dump_tree(self.ifaces)))
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def __str__(self):
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"""
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Print the java code for this class.
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"""
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j_ifaces = ', '.join(map(lambda a: a.get_name(), self.ifaces))
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touches = '\n'.join(map(lambda a: self.TOUCH_CALL_TEMPLATE.format(class_name = self.class_name,
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iface_name = a.get_name()),
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self.get_all_interfaces()))
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return self.TEST_CLASS_TEMPLATE.format(copyright = get_copyright('java'),
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ifaces = j_ifaces,
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class_name = self.class_name,
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touch_calls = touches)
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class TestInterface(mixins.DumpMixin, mixins.Named, mixins.NameComparableMixin, mixins.JavaFileMixin):
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"""
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An interface that will be used to test default method resolution order.
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"""
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TEST_INTERFACE_TEMPLATE = """{copyright}
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public interface {class_name} {extends} {ifaces} {{
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public static final Displayer field = new Displayer("{tree}");
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public void marker();
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{funcs}
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}}
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"""
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DEFAULT_FUNC_TEMPLATE = """
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public default void {class_name}_DEFAULT_FUNC() {{ return; }}
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"""
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OUTPUT_TEMPLATE = "initialization of {tree}"
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def __init__(self, ifaces, default):
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"""
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Initialize interface with the given super-interfaces
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"""
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self.ifaces = ifaces
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self.default = default
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end = "_DEFAULT" if default else ""
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self.class_name = "INTERFACE_"+gensym()+end
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self.cloned = False
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self.initialized = False
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def clone(self):
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"""
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Clones this interface, returning a new one with the same structure but
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different name.
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"""
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return TestInterface(tuple(map(lambda a: a.clone(), self.ifaces)), self.default)
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def get_name(self):
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"""
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Gets the name of this interface
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"""
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return self.class_name
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def __iter__(self):
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"""
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Performs depth-first traversal of the interface tree this interface is the
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root of. Does not filter out repeats.
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"""
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for i in self.ifaces:
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yield i
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yield from i
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def get_tree(self):
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"""
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Print out a representation of the type tree of this class
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"""
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return "[{class_name} {iftree}]".format(class_name = self.get_name(),
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iftree = print_tree(self.ifaces))
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def get_initialize_output(self):
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"""
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Returns the expected output upon the class that implements this interface being initialized.
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"""
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if self.default and not self.initialized:
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self.initialized = True
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return self.OUTPUT_TEMPLATE.format(tree = self.get_tree())
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else:
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return ""
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def get_touch_output(self):
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"""
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Returns the expected output upon this interface being touched.
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"""
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if not self.default and not self.initialized:
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self.initialized = True
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return self.OUTPUT_TEMPLATE.format(tree = self.get_tree())
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else:
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return ""
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def __str__(self):
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"""
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Print the java code for this interface.
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"""
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j_ifaces = ', '.join(map(lambda a: a.get_name(), self.ifaces))
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if self.default:
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funcs = self.DEFAULT_FUNC_TEMPLATE.format(class_name = self.class_name)
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else:
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funcs = ""
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return self.TEST_INTERFACE_TEMPLATE.format(copyright = get_copyright('java'),
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extends = "extends" if len(self.ifaces) else "",
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ifaces = j_ifaces,
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funcs = funcs,
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tree = self.get_tree(),
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class_name = self.class_name)
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def dump_tree(ifaces):
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"""
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Yields all the interfaces transitively implemented by the set in
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reverse-depth-first order
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"""
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for i in ifaces:
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yield from dump_tree(i.ifaces)
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yield i
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def print_tree(ifaces):
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"""
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Prints the tree for the given ifaces.
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"""
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return " ".join(i.get_tree() for i in ifaces)
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def clone_all(l):
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return tuple(a.clone() for a in l)
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# Cached output of subtree_sizes for speed of access.
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SUBTREES = [set(tuple(l) for l in subtree_sizes(i))
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for i in range(MAX_IFACE_DEPTH + 1)]
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def create_test_classes():
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"""
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Yield all the test classes with the different interface trees
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"""
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for num in range(1, MAX_IFACE_DEPTH + 1):
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for split in SUBTREES[num]:
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ifaces = []
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for sub in split:
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ifaces.append(list(create_interface_trees(sub)))
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for supers in itertools.product(*ifaces):
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yield TestClass(clone_all(supers))
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for i in range(len(set(dump_tree(supers)) - set(supers))):
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ns = clone_all(supers)
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selected = sorted(set(dump_tree(ns)) - set(ns))[i]
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yield TestClass(tuple([selected] + list(ns)))
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def create_interface_trees(num):
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"""
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Yield all the interface trees up to 'num' depth.
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"""
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if num == 0:
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yield TestInterface(tuple(), False)
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yield TestInterface(tuple(), True)
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return
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for split in SUBTREES[num]:
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ifaces = []
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for sub in split:
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ifaces.append(list(create_interface_trees(sub)))
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for supers in itertools.product(*ifaces):
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yield TestInterface(clone_all(supers), False)
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yield TestInterface(clone_all(supers), True)
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# TODO Should add on some from higher up the tree.
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def create_all_test_files():
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"""
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Creates all the objects representing the files in this test. They just need to
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be dumped.
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"""
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mc = MainClass()
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classes = {mc}
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for clazz in create_test_classes():
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classes.add(clazz)
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for i in dump_tree(clazz.ifaces):
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classes.add(i)
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mc.add_test(clazz)
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return mc, classes
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def main(argv):
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java_dir = Path(argv[1])
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if not java_dir.exists() or not java_dir.is_dir():
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print("{} is not a valid java dir".format(java_dir), file=sys.stderr)
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sys.exit(1)
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expected_txt = Path(argv[2])
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mainclass, all_files = create_all_test_files()
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with expected_txt.open('w') as out:
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print(mainclass.get_expected(), file=out)
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for f in all_files:
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f.dump(java_dir)
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if __name__ == '__main__':
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main(sys.argv)
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