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test/tools/javac/types/CastTest.java@93012e2a5d1d (annotated)

test/tools/javac/types/CastTest.java

Sat, 07 Nov 2020 10:30:02 +0800

author

aoqi

date

Sat, 07 Nov 2020 10:30:02 +0800

changeset 3938

93012e2a5d1d

parent 2525

2eb010b6cb22

permissions

-rw-r--r--

Added tag mips-jdk8u275-b01 for changeset eb6ee6a5f2fe

aoqi@0	1	/*
aoqi@0	2	* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
aoqi@0	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0	4	*
aoqi@0	5	* This code is free software; you can redistribute it and/or modify it
aoqi@0	6	* under the terms of the GNU General Public License version 2 only, as
aoqi@0	7	* published by the Free Software Foundation.
aoqi@0	8	*
aoqi@0	9	* This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
aoqi@0	12	* version 2 for more details (a copy is included in the LICENSE file that
aoqi@0	13	* accompanied this code).
aoqi@0	14	*
aoqi@0	15	* You should have received a copy of the GNU General Public License version
aoqi@0	16	* 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0	18	*
aoqi@0	19	* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0	20	* or visit www.oracle.com if you need additional information or have any
aoqi@0	21	* questions.
aoqi@0	22	*/
aoqi@0	23
aoqi@0	24	/*
aoqi@0	25	* @test
aoqi@0	26	* @bug 7006109
aoqi@0	27	* @summary Add test library to simplify the task of writing automated type-system tests
aoqi@0	28	* @author mcimadamore
aoqi@0	29	* @library .
aoqi@0	30	* @run main CastTest
aoqi@0	31	*/
aoqi@0	32
aoqi@0	33	import com.sun.tools.javac.code.Type;
aoqi@0	34	import com.sun.tools.javac.code.Type.*;
aoqi@0	35	import com.sun.tools.javac.code.Symbol.*;
aoqi@0	36	import java.lang.reflect.Array;
aoqi@0	37
aoqi@0	38	import static com.sun.tools.javac.code.Flags.*;
aoqi@0	39
aoqi@0	40	/**
aoqi@0	41	* Check invariants in cast conversion involving primitive types and arrays
aoqi@0	42	*/
aoqi@0	43	public class CastTest extends TypeHarness {
aoqi@0	44
aoqi@0	45	Type[] types_no_boxing;
aoqi@0	46	Type[] types_boxing;
aoqi@0	47
aoqi@0	48	static final boolean T = true;
aoqi@0	49	static final boolean F = false;
aoqi@0	50
aoqi@0	51	boolean[][] cast_result_no_boxing = {
aoqi@0	52	//byte, short, int, long, float, double, char, bool, C, +C, I, T, byte[], short[], int[], long[], float[], double[], char[], bool[], C[], +C[], I[], T[]
aoqi@0	53	/*byte*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
aoqi@0	54	/*short*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
aoqi@0	55	/*int*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
aoqi@0	56	/*long*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
aoqi@0	57	/*float*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
aoqi@0	58	/*double*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
aoqi@0	59	/*char*/ { T , T , T , T , T , T , T , F , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
aoqi@0	60	/*bool*/ { F , F , F , F , F , F , F , T , F, F , F, F, F , F , F , F , F , F , F , F , F , F , F , F },
aoqi@0	61	/*C*/ { F , F , F , F , F , F , F , F , T, F , T, T, F , F , F , F , F , F , F , F , F , F , F , F },
aoqi@0	62	/*+C*/ { F , F , F , F , F , F , F , F , F, T , F, T, F , F , F , F , F , F , F , F , F , F , F , F },
aoqi@0	63	/*I*/ { F , F , F , F , F , F , F , F , T, F , T, T, F , F , F , F , F , F , F , F , F , F , F , F },
aoqi@0	64	/*T*/ { F , F , F , F , F , F , F , F , T, T , T, T, T , T , T , T , T , T , T , T , T , T , T , T },
aoqi@0	65	/*byte[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, T , F , F , F , F , F , F , F , F , F , F , F },
aoqi@0	66	/*short[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , T , F , F , F , F , F , F , F , F , F , F },
aoqi@0	67	/*int[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , T , F , F , F , F , F , F , F , F , F },
aoqi@0	68	/*long[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , T , F , F , F , F , F , F , F , F },
aoqi@0	69	/*float[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , T , F , F , F , F , F , F , F },
aoqi@0	70	/*double[]*/{ F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , T , F , F , F , F , F , F },
aoqi@0	71	/*char[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , T , F , F , F , F , F },
aoqi@0	72	/*bool[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , T , F , F , F , F },
aoqi@0	73	/*C[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , F , T , F , T , T },
aoqi@0	74	/*+C[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , F , F , T , F , T },
aoqi@0	75	/*I[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , F , T , F , T , T },
aoqi@0	76	/*T[]*/ { F , F , F , F , F , F , F , F , F, F , F, T, F , F , F , F , F , F , F , F , T , T , T , T }};
aoqi@0	77
aoqi@0	78	boolean[][] cast_result_boxing = {
aoqi@0	79	//byte, short, int, long, float, double, char, bool, Byte, Short, Integer, Long, Float, Double, Character, Boolean, Object
aoqi@0	80	/*byte*/ { T , T , T , T , T , T , T , F , T , F , F , F , F , F , F , F , T },
aoqi@0	81	/*short*/ { T , T , T , T , T , T , T , F , F , T , F , F , F , F , F , F , T },
aoqi@0	82	/*int*/ { T , T , T , T , T , T , T , F , F , F , T , F , F , F , F , F , T },
aoqi@0	83	/*long*/ { T , T , T , T , T , T , T , F , F , F , F , T , F , F , F , F , T },
aoqi@0	84	/*float*/ { T , T , T , T , T , T , T , F , F , F , F , F , T , F , F , F , T },
aoqi@0	85	/*double*/ { T , T , T , T , T , T , T , F , F , F , F , F , F , T , F , F , T },
aoqi@0	86	/*char*/ { T , T , T , T , T , T , T , F , F , F , F , F , F , F , T , F , T },
aoqi@0	87	/*bool*/ { F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , T , T },
aoqi@0	88	/*Byte*/ { T , T , T , T , T , T , F , F , T , F , F , F , F , F , F , F , T },
aoqi@0	89	/*Short*/ { F , T , T , T , T , T , F , F , F , T , F , F , F , F , F , F , T },
aoqi@0	90	/*Integer*/ { F , F , T , T , T , T , F , F , F , F , T , F , F , F , F , F , T },
aoqi@0	91	/*Long*/ { F , F , F , T , T , T , F , F , F , F , F , T , F , F , F , F , T },
aoqi@0	92	/*Float*/ { F , F , F , F , T , T , F , F , F , F , F , F , T , F , F , F , T },
aoqi@0	93	/*Double*/ { F , F , F , F , F , T , F , F , F , F , F , F , F , T , F , F , T },
aoqi@0	94	/*Character*/ { F , F , T , T , T , T , T , F , F , F , F , F , F , F , T , F , T },
aoqi@0	95	/*Boolean*/ { F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , T , T },
aoqi@0	96	/*Object*/ { T , T , T , T , T , T , T , T , T , T , T , T , T , T , T , T , T }};
aoqi@0	97	CastTest() {
aoqi@0	98	Type[] primitiveTypes = {
aoqi@0	99	predef.byteType,
aoqi@0	100	predef.shortType,
aoqi@0	101	predef.intType,
aoqi@0	102	predef.longType,
aoqi@0	103	predef.floatType,
aoqi@0	104	predef.doubleType,
aoqi@0	105	predef.charType,
aoqi@0	106	predef.booleanType };
aoqi@0	107
aoqi@0	108	Type[] boxedTypes = new Type[primitiveTypes.length + 1];
aoqi@0	109	for (int i = 0 ; i < primitiveTypes.length ; i++) {
aoqi@0	110	boxedTypes[i] = box(primitiveTypes[i]);
aoqi@0	111	}
aoqi@0	112
aoqi@0	113	boxedTypes[primitiveTypes.length] = predef.objectType;
aoqi@0	114
aoqi@0	115	types_boxing = join(Type.class, primitiveTypes, boxedTypes);
aoqi@0	116
aoqi@0	117	Type[] referenceTypes = {
aoqi@0	118	fac.Class(),
aoqi@0	119	fac.Class(FINAL),
aoqi@0	120	fac.Interface(),
aoqi@0	121	fac.TypeVariable() };
aoqi@0	122
aoqi@0	123	Type[] arrayTypes = new Type[primitiveTypes.length + referenceTypes.length];
aoqi@0	124	int idx = 0;
aoqi@0	125	for (Type t : join(Type.class, primitiveTypes, referenceTypes)) {
aoqi@0	126	arrayTypes[idx++] = fac.Array(t);
aoqi@0	127	}
aoqi@0	128
aoqi@0	129	types_no_boxing = join(Type.class, primitiveTypes, referenceTypes, arrayTypes);
aoqi@0	130	}
aoqi@0	131
aoqi@0	132	void test(Type[] all_types, boolean[][] cast_result) {
aoqi@0	133	for (int i = 0; i < all_types.length ; i++) {
aoqi@0	134	for (int j = 0; j < all_types.length ; j++) {
aoqi@0	135	assertCastable(all_types[i], all_types[j], cast_result[i][j]);
aoqi@0	136	}
aoqi@0	137	}
aoqi@0	138	}
aoqi@0	139
aoqi@0	140	void runTests() {
aoqi@0	141	test(types_no_boxing, cast_result_no_boxing);
aoqi@0	142	test(types_boxing, cast_result_boxing);
aoqi@0	143	}
aoqi@0	144
aoqi@0	145	@SuppressWarnings("unchecked")
aoqi@0	146	<T> T[] join(Class<T> type, T[]... args) {
aoqi@0	147	int totalLength = 0;
aoqi@0	148	for (T[] arr : args) {
aoqi@0	149	totalLength += arr.length;
aoqi@0	150	}
aoqi@0	151	T[] new_arr = (T[])Array.newInstance(type, totalLength);
aoqi@0	152	int idx = 0;
aoqi@0	153	for (T[] arr : args) {
aoqi@0	154	System.arraycopy(arr, 0, new_arr, idx, arr.length);
aoqi@0	155	idx += arr.length;
aoqi@0	156	}
aoqi@0	157	return new_arr;
aoqi@0	158	}
aoqi@0	159
aoqi@0	160	public static void main(String[] args) {
aoqi@0	161	new CastTest().runTests();
aoqi@0	162	}
aoqi@0	163	}