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/*
* Copyright (c) 2010, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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 General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 7006109
* @summary Add test library to simplify the task of writing automated type-system tests
* @author mcimadamore
* @library /tools/lib/types
* @modules jdk.compiler/com.sun.tools.javac.code
* jdk.compiler/com.sun.tools.javac.comp
* jdk.compiler/com.sun.tools.javac.file
* jdk.compiler/com.sun.tools.javac.util
* jdk.compiler/com.sun.tools.javac.main
* jdk.compiler/com.sun.tools.javac.tree
* @build TypeHarness
* @run main CastTest
*/
import com.sun.tools.javac.code.Type;
import java.lang.reflect.Array;
import static com.sun.tools.javac.code.Flags.*;
/**
* Check invariants in cast conversion involving primitive types and arrays
*/
public class CastTest extends TypeHarness {
Type[] types_no_boxing;
Type[] types_boxing;
static final boolean T = true;
static final boolean F = false;
boolean[][] cast_result_no_boxing = {
//byte, short, int, long, float, double, char, bool, C, +C, I, T, byte[], short[], int[], long[], float[], double[], char[], bool[], C[], +C[], I[], T[]
/*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 },
/*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 },
/*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 },
/*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 },
/*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 },
/*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 },
/*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 },
/*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 },
/*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 },
/*+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 },
/*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 },
/*T*/ { T , T , T , T , T , T , T , T , T, T , T, T, T , T , T , T , T , T , T , T , T , T , T , T },
/*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 },
/*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 },
/*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 },
/*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 },
/*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 },
/*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 },
/*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 },
/*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 },
/*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 },
/*+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 },
/*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 },
/*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 }};
boolean[][] cast_result_boxing = {
//byte, short, int, long, float, double, char, bool, Byte, Short, Integer, Long, Float, Double, Character, Boolean, Object
/*byte*/ { T , T , T , T , T , T , T , F , T , F , F , F , F , F , F , F , T },
/*short*/ { T , T , T , T , T , T , T , F , F , T , F , F , F , F , F , F , T },
/*int*/ { T , T , T , T , T , T , T , F , F , F , T , F , F , F , F , F , T },
/*long*/ { T , T , T , T , T , T , T , F , F , F , F , T , F , F , F , F , T },
/*float*/ { T , T , T , T , T , T , T , F , F , F , F , F , T , F , F , F , T },
/*double*/ { T , T , T , T , T , T , T , F , F , F , F , F , F , T , F , F , T },
/*char*/ { T , T , T , T , T , T , T , F , F , F , F , F , F , F , T , F , T },
/*bool*/ { F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , T , T },
/*Byte*/ { T , T , T , T , T , T , F , F , T , F , F , F , F , F , F , F , T },
/*Short*/ { F , T , T , T , T , T , F , F , F , T , F , F , F , F , F , F , T },
/*Integer*/ { F , F , T , T , T , T , F , F , F , F , T , F , F , F , F , F , T },
/*Long*/ { F , F , F , T , T , T , F , F , F , F , F , T , F , F , F , F , T },
/*Float*/ { F , F , F , F , T , T , F , F , F , F , F , F , T , F , F , F , T },
/*Double*/ { F , F , F , F , F , T , F , F , F , F , F , F , F , T , F , F , T },
/*Character*/ { F , F , T , T , T , T , T , F , F , F , F , F , F , F , T , F , T },
/*Boolean*/ { F , F , F , F , F , F , F , T , F , F , F , F , F , F , F , T , T },
/*Object*/ { T , T , T , T , T , T , T , T , T , T , T , T , T , T , T , T , T }};
CastTest() {
Type[] primitiveTypes = {
predef.byteType,
predef.shortType,
predef.intType,
predef.longType,
predef.floatType,
predef.doubleType,
predef.charType,
predef.booleanType };
Type[] boxedTypes = new Type[primitiveTypes.length + 1];
for (int i = 0 ; i < primitiveTypes.length ; i++) {
boxedTypes[i] = box(primitiveTypes[i]);
}
boxedTypes[primitiveTypes.length] = predef.objectType;
types_boxing = join(Type.class, primitiveTypes, boxedTypes);
Type[] referenceTypes = {
fac.Class(),
fac.Class(FINAL),
fac.Interface(),
fac.TypeVariable() };
Type[] arrayTypes = new Type[primitiveTypes.length + referenceTypes.length];
int idx = 0;
for (Type t : join(Type.class, primitiveTypes, referenceTypes)) {
arrayTypes[idx++] = fac.Array(t);
}
types_no_boxing = join(Type.class, primitiveTypes, referenceTypes, arrayTypes);
}
void test(Type[] all_types, boolean[][] cast_result) {
for (int i = 0; i < all_types.length ; i++) {
for (int j = 0; j < all_types.length ; j++) {
assertCastable(all_types[i], all_types[j], cast_result[i][j]);
}
}
}
void runTests() {
test(types_no_boxing, cast_result_no_boxing);
test(types_boxing, cast_result_boxing);
}
@SuppressWarnings("unchecked")
<T> T[] join(Class<T> type, T[]... args) {
int totalLength = 0;
for (T[] arr : args) {
totalLength += arr.length;
}
T[] new_arr = (T[])Array.newInstance(type, totalLength);
int idx = 0;
for (T[] arr : args) {
System.arraycopy(arr, 0, new_arr, idx, arr.length);
idx += arr.length;
}
return new_arr;
}
public static void main(String[] args) {
new CastTest().runTests();
}
}
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