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/*
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* Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Sun designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Sun in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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package sun.reflect;
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import java.lang.reflect.*;
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import sun.misc.Unsafe;
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/** Shared functionality for all accessor generators */
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class AccessorGenerator implements ClassFileConstants {
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static final Unsafe unsafe = Unsafe.getUnsafe();
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// Constants because there's no way to say "short integer constant",
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// i.e., "1S"
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protected static final short S0 = (short) 0;
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protected static final short S1 = (short) 1;
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protected static final short S2 = (short) 2;
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protected static final short S3 = (short) 3;
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protected static final short S4 = (short) 4;
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protected static final short S5 = (short) 5;
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protected static final short S6 = (short) 6;
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// Instance variables for shared functionality between
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// FieldAccessorGenerator and MethodAccessorGenerator
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protected ClassFileAssembler asm;
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protected int modifiers;
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protected short thisClass;
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protected short superClass;
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protected short targetClass;
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// Common constant pool entries to FieldAccessor and MethodAccessor
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protected short throwableClass;
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protected short classCastClass;
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protected short nullPointerClass;
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protected short illegalArgumentClass;
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protected short invocationTargetClass;
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protected short initIdx;
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protected short initNameAndTypeIdx;
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protected short initStringNameAndTypeIdx;
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protected short nullPointerCtorIdx;
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protected short illegalArgumentCtorIdx;
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protected short illegalArgumentStringCtorIdx;
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protected short invocationTargetCtorIdx;
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protected short superCtorIdx;
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protected short objectClass;
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protected short toStringIdx;
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protected short codeIdx;
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protected short exceptionsIdx;
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// Boxing
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protected short booleanIdx;
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protected short booleanCtorIdx;
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protected short booleanUnboxIdx;
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protected short byteIdx;
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protected short byteCtorIdx;
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protected short byteUnboxIdx;
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protected short characterIdx;
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protected short characterCtorIdx;
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protected short characterUnboxIdx;
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protected short doubleIdx;
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protected short doubleCtorIdx;
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protected short doubleUnboxIdx;
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protected short floatIdx;
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protected short floatCtorIdx;
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protected short floatUnboxIdx;
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protected short integerIdx;
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protected short integerCtorIdx;
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protected short integerUnboxIdx;
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protected short longIdx;
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protected short longCtorIdx;
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protected short longUnboxIdx;
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protected short shortIdx;
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protected short shortCtorIdx;
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protected short shortUnboxIdx;
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protected final short NUM_COMMON_CPOOL_ENTRIES = (short) 30;
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protected final short NUM_BOXING_CPOOL_ENTRIES = (short) 72;
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// Requires that superClass has been set up
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protected void emitCommonConstantPoolEntries() {
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// + [UTF-8] "java/lang/Throwable"
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// + [CONSTANT_Class_info] for above
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// + [UTF-8] "java/lang/ClassCastException"
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// + [CONSTANT_Class_info] for above
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// + [UTF-8] "java/lang/NullPointerException"
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// + [CONSTANT_Class_info] for above
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// + [UTF-8] "java/lang/IllegalArgumentException"
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// + [CONSTANT_Class_info] for above
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// + [UTF-8] "java/lang/InvocationTargetException"
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// + [CONSTANT_Class_info] for above
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// + [UTF-8] "<init>"
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// + [UTF-8] "()V"
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// + [CONSTANT_NameAndType_info] for above
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// + [CONSTANT_Methodref_info] for NullPointerException's constructor
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// + [CONSTANT_Methodref_info] for IllegalArgumentException's constructor
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// + [UTF-8] "(Ljava/lang/String;)V"
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// + [CONSTANT_NameAndType_info] for "<init>(Ljava/lang/String;)V"
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// + [CONSTANT_Methodref_info] for IllegalArgumentException's constructor taking a String
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// + [UTF-8] "(Ljava/lang/Throwable;)V"
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// + [CONSTANT_NameAndType_info] for "<init>(Ljava/lang/Throwable;)V"
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// + [CONSTANT_Methodref_info] for InvocationTargetException's constructor
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// + [CONSTANT_Methodref_info] for "super()"
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// + [UTF-8] "java/lang/Object"
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// + [CONSTANT_Class_info] for above
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// + [UTF-8] "toString"
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// + [UTF-8] "()Ljava/lang/String;"
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// + [CONSTANT_NameAndType_info] for "toString()Ljava/lang/String;"
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// + [CONSTANT_Methodref_info] for Object's toString method
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// + [UTF-8] "Code"
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// + [UTF-8] "Exceptions"
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asm.emitConstantPoolUTF8("java/lang/Throwable");
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asm.emitConstantPoolClass(asm.cpi());
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throwableClass = asm.cpi();
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asm.emitConstantPoolUTF8("java/lang/ClassCastException");
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asm.emitConstantPoolClass(asm.cpi());
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classCastClass = asm.cpi();
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asm.emitConstantPoolUTF8("java/lang/NullPointerException");
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asm.emitConstantPoolClass(asm.cpi());
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nullPointerClass = asm.cpi();
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asm.emitConstantPoolUTF8("java/lang/IllegalArgumentException");
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asm.emitConstantPoolClass(asm.cpi());
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illegalArgumentClass = asm.cpi();
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asm.emitConstantPoolUTF8("java/lang/reflect/InvocationTargetException");
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asm.emitConstantPoolClass(asm.cpi());
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invocationTargetClass = asm.cpi();
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asm.emitConstantPoolUTF8("<init>");
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initIdx = asm.cpi();
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asm.emitConstantPoolUTF8("()V");
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asm.emitConstantPoolNameAndType(initIdx, asm.cpi());
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initNameAndTypeIdx = asm.cpi();
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asm.emitConstantPoolMethodref(nullPointerClass, initNameAndTypeIdx);
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nullPointerCtorIdx = asm.cpi();
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asm.emitConstantPoolMethodref(illegalArgumentClass, initNameAndTypeIdx);
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illegalArgumentCtorIdx = asm.cpi();
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asm.emitConstantPoolUTF8("(Ljava/lang/String;)V");
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asm.emitConstantPoolNameAndType(initIdx, asm.cpi());
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initStringNameAndTypeIdx = asm.cpi();
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asm.emitConstantPoolMethodref(illegalArgumentClass, initStringNameAndTypeIdx);
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illegalArgumentStringCtorIdx = asm.cpi();
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asm.emitConstantPoolUTF8("(Ljava/lang/Throwable;)V");
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asm.emitConstantPoolNameAndType(initIdx, asm.cpi());
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asm.emitConstantPoolMethodref(invocationTargetClass, asm.cpi());
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invocationTargetCtorIdx = asm.cpi();
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asm.emitConstantPoolMethodref(superClass, initNameAndTypeIdx);
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superCtorIdx = asm.cpi();
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asm.emitConstantPoolUTF8("java/lang/Object");
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asm.emitConstantPoolClass(asm.cpi());
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objectClass = asm.cpi();
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asm.emitConstantPoolUTF8("toString");
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asm.emitConstantPoolUTF8("()Ljava/lang/String;");
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asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi());
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asm.emitConstantPoolMethodref(objectClass, asm.cpi());
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toStringIdx = asm.cpi();
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asm.emitConstantPoolUTF8("Code");
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codeIdx = asm.cpi();
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asm.emitConstantPoolUTF8("Exceptions");
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exceptionsIdx = asm.cpi();
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}
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/** Constant pool entries required to be able to box/unbox primitive
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types. Note that we don't emit these if we don't need them. */
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protected void emitBoxingContantPoolEntries() {
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// * [UTF-8] "java/lang/Boolean"
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// * [CONSTANT_Class_info] for above
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// * [UTF-8] "(Z)V"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "booleanValue"
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// * [UTF-8] "()Z"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "java/lang/Byte"
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// * [CONSTANT_Class_info] for above
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// * [UTF-8] "(B)V"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "byteValue"
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// * [UTF-8] "()B"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "java/lang/Character"
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// * [CONSTANT_Class_info] for above
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// * [UTF-8] "(C)V"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "charValue"
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// * [UTF-8] "()C"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "java/lang/Double"
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// * [CONSTANT_Class_info] for above
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// * [UTF-8] "(D)V"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "doubleValue"
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// * [UTF-8] "()D"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "java/lang/Float"
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// * [CONSTANT_Class_info] for above
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// * [UTF-8] "(F)V"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "floatValue"
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// * [UTF-8] "()F"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "java/lang/Integer"
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// * [CONSTANT_Class_info] for above
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// * [UTF-8] "(I)V"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "intValue"
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// * [UTF-8] "()I"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "java/lang/Long"
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// * [CONSTANT_Class_info] for above
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// * [UTF-8] "(J)V"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "longValue"
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// * [UTF-8] "()J"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "java/lang/Short"
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// * [CONSTANT_Class_info] for above
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// * [UTF-8] "(S)V"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// * [UTF-8] "shortValue"
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// * [UTF-8] "()S"
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// * [CONSTANT_NameAndType_info] for above
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// * [CONSTANT_Methodref_info] for above
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// Boolean
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asm.emitConstantPoolUTF8("java/lang/Boolean");
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asm.emitConstantPoolClass(asm.cpi());
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booleanIdx = asm.cpi();
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asm.emitConstantPoolUTF8("(Z)V");
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asm.emitConstantPoolNameAndType(initIdx, asm.cpi());
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asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi());
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booleanCtorIdx = asm.cpi();
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asm.emitConstantPoolUTF8("booleanValue");
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asm.emitConstantPoolUTF8("()Z");
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asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi());
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asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi());
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booleanUnboxIdx = asm.cpi();
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// Byte
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asm.emitConstantPoolUTF8("java/lang/Byte");
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asm.emitConstantPoolClass(asm.cpi());
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byteIdx = asm.cpi();
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asm.emitConstantPoolUTF8("(B)V");
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asm.emitConstantPoolNameAndType(initIdx, asm.cpi());
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asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi());
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byteCtorIdx = asm.cpi();
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asm.emitConstantPoolUTF8("byteValue");
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asm.emitConstantPoolUTF8("()B");
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asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi());
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asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi());
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byteUnboxIdx = asm.cpi();
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// Character
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asm.emitConstantPoolUTF8("java/lang/Character");
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asm.emitConstantPoolClass(asm.cpi());
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characterIdx = asm.cpi();
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asm.emitConstantPoolUTF8("(C)V");
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asm.emitConstantPoolNameAndType(initIdx, asm.cpi());
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asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi());
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characterCtorIdx = asm.cpi();
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asm.emitConstantPoolUTF8("charValue");
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asm.emitConstantPoolUTF8("()C");
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asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi());
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asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi());
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characterUnboxIdx = asm.cpi();
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// Double
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asm.emitConstantPoolUTF8("java/lang/Double");
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asm.emitConstantPoolClass(asm.cpi());
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doubleIdx = asm.cpi();
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asm.emitConstantPoolUTF8("(D)V");
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asm.emitConstantPoolNameAndType(initIdx, asm.cpi());
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asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi());
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doubleCtorIdx = asm.cpi();
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asm.emitConstantPoolUTF8("doubleValue");
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asm.emitConstantPoolUTF8("()D");
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asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi());
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asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi());
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doubleUnboxIdx = asm.cpi();
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// Float
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asm.emitConstantPoolUTF8("java/lang/Float");
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asm.emitConstantPoolClass(asm.cpi());
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floatIdx = asm.cpi();
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asm.emitConstantPoolUTF8("(F)V");
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asm.emitConstantPoolNameAndType(initIdx, asm.cpi());
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asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi());
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floatCtorIdx = asm.cpi();
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asm.emitConstantPoolUTF8("floatValue");
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asm.emitConstantPoolUTF8("()F");
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asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi());
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asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi());
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floatUnboxIdx = asm.cpi();
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// Integer
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asm.emitConstantPoolUTF8("java/lang/Integer");
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asm.emitConstantPoolClass(asm.cpi());
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integerIdx = asm.cpi();
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asm.emitConstantPoolUTF8("(I)V");
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asm.emitConstantPoolNameAndType(initIdx, asm.cpi());
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asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi());
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integerCtorIdx = asm.cpi();
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asm.emitConstantPoolUTF8("intValue");
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asm.emitConstantPoolUTF8("()I");
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asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi());
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asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi());
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integerUnboxIdx = asm.cpi();
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// Long
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asm.emitConstantPoolUTF8("java/lang/Long");
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asm.emitConstantPoolClass(asm.cpi());
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longIdx = asm.cpi();
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asm.emitConstantPoolUTF8("(J)V");
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asm.emitConstantPoolNameAndType(initIdx, asm.cpi());
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|
346 |
asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi());
|
|
347 |
longCtorIdx = asm.cpi();
|
|
348 |
asm.emitConstantPoolUTF8("longValue");
|
|
349 |
asm.emitConstantPoolUTF8("()J");
|
|
350 |
asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi());
|
|
351 |
asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi());
|
|
352 |
longUnboxIdx = asm.cpi();
|
|
353 |
|
|
354 |
// Short
|
|
355 |
asm.emitConstantPoolUTF8("java/lang/Short");
|
|
356 |
asm.emitConstantPoolClass(asm.cpi());
|
|
357 |
shortIdx = asm.cpi();
|
|
358 |
asm.emitConstantPoolUTF8("(S)V");
|
|
359 |
asm.emitConstantPoolNameAndType(initIdx, asm.cpi());
|
|
360 |
asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi());
|
|
361 |
shortCtorIdx = asm.cpi();
|
|
362 |
asm.emitConstantPoolUTF8("shortValue");
|
|
363 |
asm.emitConstantPoolUTF8("()S");
|
|
364 |
asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi());
|
|
365 |
asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi());
|
|
366 |
shortUnboxIdx = asm.cpi();
|
|
367 |
}
|
|
368 |
|
|
369 |
// Necessary because of Java's annoying promotion rules
|
|
370 |
protected static short add(short s1, short s2) {
|
|
371 |
return (short) (s1 + s2);
|
|
372 |
}
|
|
373 |
|
|
374 |
protected static short sub(short s1, short s2) {
|
|
375 |
return (short) (s1 - s2);
|
|
376 |
}
|
|
377 |
|
|
378 |
protected boolean isStatic() {
|
|
379 |
return Modifier.isStatic(modifiers);
|
|
380 |
}
|
|
381 |
|
|
382 |
/** Returns class name in "internal" form (i.e., '/' separators
|
|
383 |
instead of '.') */
|
|
384 |
protected static String getClassName
|
|
385 |
(Class c, boolean addPrefixAndSuffixForNonPrimitiveTypes)
|
|
386 |
{
|
|
387 |
if (c.isPrimitive()) {
|
|
388 |
if (c == Boolean.TYPE) {
|
|
389 |
return "Z";
|
|
390 |
} else if (c == Byte.TYPE) {
|
|
391 |
return "B";
|
|
392 |
} else if (c == Character.TYPE) {
|
|
393 |
return "C";
|
|
394 |
} else if (c == Double.TYPE) {
|
|
395 |
return "D";
|
|
396 |
} else if (c == Float.TYPE) {
|
|
397 |
return "F";
|
|
398 |
} else if (c == Integer.TYPE) {
|
|
399 |
return "I";
|
|
400 |
} else if (c == Long.TYPE) {
|
|
401 |
return "J";
|
|
402 |
} else if (c == Short.TYPE) {
|
|
403 |
return "S";
|
|
404 |
} else if (c == Void.TYPE) {
|
|
405 |
return "V";
|
|
406 |
}
|
|
407 |
throw new InternalError("Should have found primitive type");
|
|
408 |
} else if (c.isArray()) {
|
|
409 |
return "[" + getClassName(c.getComponentType(), true);
|
|
410 |
} else {
|
|
411 |
if (addPrefixAndSuffixForNonPrimitiveTypes) {
|
|
412 |
return internalize("L" + c.getName() + ";");
|
|
413 |
} else {
|
|
414 |
return internalize(c.getName());
|
|
415 |
}
|
|
416 |
}
|
|
417 |
}
|
|
418 |
|
|
419 |
private static String internalize(String className) {
|
|
420 |
return className.replace('.', '/');
|
|
421 |
}
|
|
422 |
|
|
423 |
protected void emitConstructor() {
|
|
424 |
// Generate code into fresh code buffer
|
|
425 |
ClassFileAssembler cb = new ClassFileAssembler();
|
|
426 |
// 0 incoming arguments
|
|
427 |
cb.setMaxLocals(1);
|
|
428 |
cb.opc_aload_0();
|
|
429 |
cb.opc_invokespecial(superCtorIdx, 0, 0);
|
|
430 |
cb.opc_return();
|
|
431 |
|
|
432 |
// Emit method
|
|
433 |
emitMethod(initIdx, cb.getMaxLocals(), cb, null, null);
|
|
434 |
}
|
|
435 |
|
|
436 |
// The descriptor's index in the constant pool must be (1 +
|
|
437 |
// nameIdx). "numArgs" must indicate ALL arguments, including the
|
|
438 |
// implicit "this" argument; double and long arguments each count
|
|
439 |
// as 2 in this count. The code buffer must NOT contain the code
|
|
440 |
// length. The exception table may be null, but if non-null must
|
|
441 |
// NOT contain the exception table's length. The checked exception
|
|
442 |
// indices may be null.
|
|
443 |
protected void emitMethod(short nameIdx,
|
|
444 |
int numArgs,
|
|
445 |
ClassFileAssembler code,
|
|
446 |
ClassFileAssembler exceptionTable,
|
|
447 |
short[] checkedExceptionIndices)
|
|
448 |
{
|
|
449 |
int codeLen = code.getLength();
|
|
450 |
int excLen = 0;
|
|
451 |
if (exceptionTable != null) {
|
|
452 |
excLen = exceptionTable.getLength();
|
|
453 |
if ((excLen % 8) != 0) {
|
|
454 |
throw new IllegalArgumentException("Illegal exception table");
|
|
455 |
}
|
|
456 |
}
|
|
457 |
int attrLen = 12 + codeLen + excLen;
|
|
458 |
excLen = excLen / 8; // No-op if no exception table
|
|
459 |
|
|
460 |
asm.emitShort(ACC_PUBLIC);
|
|
461 |
asm.emitShort(nameIdx);
|
|
462 |
asm.emitShort(add(nameIdx, S1));
|
|
463 |
if (checkedExceptionIndices == null) {
|
|
464 |
// Code attribute only
|
|
465 |
asm.emitShort(S1);
|
|
466 |
} else {
|
|
467 |
// Code and Exceptions attributes
|
|
468 |
asm.emitShort(S2);
|
|
469 |
}
|
|
470 |
// Code attribute
|
|
471 |
asm.emitShort(codeIdx);
|
|
472 |
asm.emitInt(attrLen);
|
|
473 |
asm.emitShort(code.getMaxStack());
|
|
474 |
asm.emitShort((short) Math.max(numArgs, code.getMaxLocals()));
|
|
475 |
asm.emitInt(codeLen);
|
|
476 |
asm.append(code);
|
|
477 |
asm.emitShort((short) excLen);
|
|
478 |
if (exceptionTable != null) {
|
|
479 |
asm.append(exceptionTable);
|
|
480 |
}
|
|
481 |
asm.emitShort(S0); // No additional attributes for Code attribute
|
|
482 |
if (checkedExceptionIndices != null) {
|
|
483 |
// Exceptions attribute
|
|
484 |
asm.emitShort(exceptionsIdx);
|
|
485 |
asm.emitInt(2 + 2 * checkedExceptionIndices.length);
|
|
486 |
asm.emitShort((short) checkedExceptionIndices.length);
|
|
487 |
for (int i = 0; i < checkedExceptionIndices.length; i++) {
|
|
488 |
asm.emitShort(checkedExceptionIndices[i]);
|
|
489 |
}
|
|
490 |
}
|
|
491 |
}
|
|
492 |
|
|
493 |
protected short indexForPrimitiveType(Class type) {
|
|
494 |
if (type == Boolean.TYPE) {
|
|
495 |
return booleanIdx;
|
|
496 |
} else if (type == Byte.TYPE) {
|
|
497 |
return byteIdx;
|
|
498 |
} else if (type == Character.TYPE) {
|
|
499 |
return characterIdx;
|
|
500 |
} else if (type == Double.TYPE) {
|
|
501 |
return doubleIdx;
|
|
502 |
} else if (type == Float.TYPE) {
|
|
503 |
return floatIdx;
|
|
504 |
} else if (type == Integer.TYPE) {
|
|
505 |
return integerIdx;
|
|
506 |
} else if (type == Long.TYPE) {
|
|
507 |
return longIdx;
|
|
508 |
} else if (type == Short.TYPE) {
|
|
509 |
return shortIdx;
|
|
510 |
}
|
|
511 |
throw new InternalError("Should have found primitive type");
|
|
512 |
}
|
|
513 |
|
|
514 |
protected short ctorIndexForPrimitiveType(Class type) {
|
|
515 |
if (type == Boolean.TYPE) {
|
|
516 |
return booleanCtorIdx;
|
|
517 |
} else if (type == Byte.TYPE) {
|
|
518 |
return byteCtorIdx;
|
|
519 |
} else if (type == Character.TYPE) {
|
|
520 |
return characterCtorIdx;
|
|
521 |
} else if (type == Double.TYPE) {
|
|
522 |
return doubleCtorIdx;
|
|
523 |
} else if (type == Float.TYPE) {
|
|
524 |
return floatCtorIdx;
|
|
525 |
} else if (type == Integer.TYPE) {
|
|
526 |
return integerCtorIdx;
|
|
527 |
} else if (type == Long.TYPE) {
|
|
528 |
return longCtorIdx;
|
|
529 |
} else if (type == Short.TYPE) {
|
|
530 |
return shortCtorIdx;
|
|
531 |
}
|
|
532 |
throw new InternalError("Should have found primitive type");
|
|
533 |
}
|
|
534 |
|
|
535 |
/** Returns true for widening or identity conversions for primitive
|
|
536 |
types only */
|
|
537 |
protected static boolean canWidenTo(Class type, Class otherType) {
|
|
538 |
if (!type.isPrimitive()) {
|
|
539 |
return false;
|
|
540 |
}
|
|
541 |
|
|
542 |
// Widening conversions (from JVM spec):
|
|
543 |
// byte to short, int, long, float, or double
|
|
544 |
// short to int, long, float, or double
|
|
545 |
// char to int, long, float, or double
|
|
546 |
// int to long, float, or double
|
|
547 |
// long to float or double
|
|
548 |
// float to double
|
|
549 |
|
|
550 |
if (type == Boolean.TYPE) {
|
|
551 |
if (otherType == Boolean.TYPE) {
|
|
552 |
return true;
|
|
553 |
}
|
|
554 |
} else if (type == Byte.TYPE) {
|
|
555 |
if ( otherType == Byte.TYPE
|
|
556 |
|| otherType == Short.TYPE
|
|
557 |
|| otherType == Integer.TYPE
|
|
558 |
|| otherType == Long.TYPE
|
|
559 |
|| otherType == Float.TYPE
|
|
560 |
|| otherType == Double.TYPE) {
|
|
561 |
return true;
|
|
562 |
}
|
|
563 |
} else if (type == Short.TYPE) {
|
|
564 |
if ( otherType == Short.TYPE
|
|
565 |
|| otherType == Integer.TYPE
|
|
566 |
|| otherType == Long.TYPE
|
|
567 |
|| otherType == Float.TYPE
|
|
568 |
|| otherType == Double.TYPE) {
|
|
569 |
return true;
|
|
570 |
}
|
|
571 |
} else if (type == Character.TYPE) {
|
|
572 |
if ( otherType == Character.TYPE
|
|
573 |
|| otherType == Integer.TYPE
|
|
574 |
|| otherType == Long.TYPE
|
|
575 |
|| otherType == Float.TYPE
|
|
576 |
|| otherType == Double.TYPE) {
|
|
577 |
return true;
|
|
578 |
}
|
|
579 |
} else if (type == Integer.TYPE) {
|
|
580 |
if ( otherType == Integer.TYPE
|
|
581 |
|| otherType == Long.TYPE
|
|
582 |
|| otherType == Float.TYPE
|
|
583 |
|| otherType == Double.TYPE) {
|
|
584 |
return true;
|
|
585 |
}
|
|
586 |
} else if (type == Long.TYPE) {
|
|
587 |
if ( otherType == Long.TYPE
|
|
588 |
|| otherType == Float.TYPE
|
|
589 |
|| otherType == Double.TYPE) {
|
|
590 |
return true;
|
|
591 |
}
|
|
592 |
} else if (type == Float.TYPE) {
|
|
593 |
if ( otherType == Float.TYPE
|
|
594 |
|| otherType == Double.TYPE) {
|
|
595 |
return true;
|
|
596 |
}
|
|
597 |
} else if (type == Double.TYPE) {
|
|
598 |
if (otherType == Double.TYPE) {
|
|
599 |
return true;
|
|
600 |
}
|
|
601 |
}
|
|
602 |
|
|
603 |
return false;
|
|
604 |
}
|
|
605 |
|
|
606 |
/** Emits the widening bytecode for the given primitive conversion
|
|
607 |
(or none if the identity conversion). Requires that a primitive
|
|
608 |
conversion exists; i.e., canWidenTo must have already been
|
|
609 |
called and returned true. */
|
|
610 |
protected static void emitWideningBytecodeForPrimitiveConversion
|
|
611 |
(ClassFileAssembler cb,
|
|
612 |
Class fromType,
|
|
613 |
Class toType)
|
|
614 |
{
|
|
615 |
// Note that widening conversions for integral types (i.e., "b2s",
|
|
616 |
// "s2i") are no-ops since values on the Java stack are
|
|
617 |
// sign-extended.
|
|
618 |
|
|
619 |
// Widening conversions (from JVM spec):
|
|
620 |
// byte to short, int, long, float, or double
|
|
621 |
// short to int, long, float, or double
|
|
622 |
// char to int, long, float, or double
|
|
623 |
// int to long, float, or double
|
|
624 |
// long to float or double
|
|
625 |
// float to double
|
|
626 |
|
|
627 |
if ( fromType == Byte.TYPE
|
|
628 |
|| fromType == Short.TYPE
|
|
629 |
|| fromType == Character.TYPE
|
|
630 |
|| fromType == Integer.TYPE) {
|
|
631 |
if (toType == Long.TYPE) {
|
|
632 |
cb.opc_i2l();
|
|
633 |
} else if (toType == Float.TYPE) {
|
|
634 |
cb.opc_i2f();
|
|
635 |
} else if (toType == Double.TYPE) {
|
|
636 |
cb.opc_i2d();
|
|
637 |
}
|
|
638 |
} else if (fromType == Long.TYPE) {
|
|
639 |
if (toType == Float.TYPE) {
|
|
640 |
cb.opc_l2f();
|
|
641 |
} else if (toType == Double.TYPE) {
|
|
642 |
cb.opc_l2d();
|
|
643 |
}
|
|
644 |
} else if (fromType == Float.TYPE) {
|
|
645 |
if (toType == Double.TYPE) {
|
|
646 |
cb.opc_f2d();
|
|
647 |
}
|
|
648 |
}
|
|
649 |
|
|
650 |
// Otherwise, was identity or no-op conversion. Fall through.
|
|
651 |
}
|
|
652 |
|
|
653 |
protected short unboxingMethodForPrimitiveType(Class primType) {
|
|
654 |
if (primType == Boolean.TYPE) {
|
|
655 |
return booleanUnboxIdx;
|
|
656 |
} else if (primType == Byte.TYPE) {
|
|
657 |
return byteUnboxIdx;
|
|
658 |
} else if (primType == Character.TYPE) {
|
|
659 |
return characterUnboxIdx;
|
|
660 |
} else if (primType == Short.TYPE) {
|
|
661 |
return shortUnboxIdx;
|
|
662 |
} else if (primType == Integer.TYPE) {
|
|
663 |
return integerUnboxIdx;
|
|
664 |
} else if (primType == Long.TYPE) {
|
|
665 |
return longUnboxIdx;
|
|
666 |
} else if (primType == Float.TYPE) {
|
|
667 |
return floatUnboxIdx;
|
|
668 |
} else if (primType == Double.TYPE) {
|
|
669 |
return doubleUnboxIdx;
|
|
670 |
}
|
|
671 |
throw new InternalError("Illegal primitive type " + primType.getName());
|
|
672 |
}
|
|
673 |
|
|
674 |
protected static final Class[] primitiveTypes = new Class[] {
|
|
675 |
Boolean.TYPE,
|
|
676 |
Byte.TYPE,
|
|
677 |
Character.TYPE,
|
|
678 |
Short.TYPE,
|
|
679 |
Integer.TYPE,
|
|
680 |
Long.TYPE,
|
|
681 |
Float.TYPE,
|
|
682 |
Double.TYPE
|
|
683 |
};
|
|
684 |
|
|
685 |
/** We don't consider "Void" to be a primitive type */
|
|
686 |
protected static boolean isPrimitive(Class c) {
|
|
687 |
return (c.isPrimitive() && c != Void.TYPE);
|
|
688 |
}
|
|
689 |
|
|
690 |
protected int typeSizeInStackSlots(Class c) {
|
|
691 |
if (c == Void.TYPE) {
|
|
692 |
return 0;
|
|
693 |
}
|
|
694 |
if (c == Long.TYPE || c == Double.TYPE) {
|
|
695 |
return 2;
|
|
696 |
}
|
|
697 |
return 1;
|
|
698 |
}
|
|
699 |
|
|
700 |
private ClassFileAssembler illegalArgumentCodeBuffer;
|
|
701 |
protected ClassFileAssembler illegalArgumentCodeBuffer() {
|
|
702 |
if (illegalArgumentCodeBuffer == null) {
|
|
703 |
illegalArgumentCodeBuffer = new ClassFileAssembler();
|
|
704 |
illegalArgumentCodeBuffer.opc_new(illegalArgumentClass);
|
|
705 |
illegalArgumentCodeBuffer.opc_dup();
|
|
706 |
illegalArgumentCodeBuffer.opc_invokespecial(illegalArgumentCtorIdx, 0, 0);
|
|
707 |
illegalArgumentCodeBuffer.opc_athrow();
|
|
708 |
}
|
|
709 |
|
|
710 |
return illegalArgumentCodeBuffer;
|
|
711 |
}
|
|
712 |
}
|