diff options
Diffstat (limited to 'src/Java/shaded/reflectionfactory/AccessorGenerator.java')
| -rw-r--r-- | src/Java/shaded/reflectionfactory/AccessorGenerator.java | 715 |
1 files changed, 0 insertions, 715 deletions
diff --git a/src/Java/shaded/reflectionfactory/AccessorGenerator.java b/src/Java/shaded/reflectionfactory/AccessorGenerator.java deleted file mode 100644 index bbd854e892..0000000000 --- a/src/Java/shaded/reflectionfactory/AccessorGenerator.java +++ /dev/null @@ -1,715 +0,0 @@ -/* - * Copyright (c) 2001, 2013, 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. Oracle designates this - * particular file as subject to the "Classpath" exception as provided - * by Oracle in the LICENSE file that accompanied this code. - * - * 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. - */ - -package shaded.reflectionfactory; - -import java.lang.reflect.*; - -/** Shared functionality for all accessor generators */ - -class AccessorGenerator implements ClassFileConstants { - static final Unsafe unsafe = Unsafe.getUnsafe(); - - // Constants because there's no way to say "short integer constant", - // i.e., "1S" - protected static final short S0 = (short) 0; - protected static final short S1 = (short) 1; - protected static final short S2 = (short) 2; - protected static final short S3 = (short) 3; - protected static final short S4 = (short) 4; - protected static final short S5 = (short) 5; - protected static final short S6 = (short) 6; - - // Instance variables for shared functionality between - // FieldAccessorGenerator and MethodAccessorGenerator - protected ClassFileAssembler asm; - protected int modifiers; - protected short thisClass; - protected short superClass; - protected short targetClass; - // Common constant pool entries to FieldAccessor and MethodAccessor - protected short throwableClass; - protected short classCastClass; - protected short nullPointerClass; - protected short illegalArgumentClass; - protected short invocationTargetClass; - protected short initIdx; - protected short initNameAndTypeIdx; - protected short initStringNameAndTypeIdx; - protected short nullPointerCtorIdx; - protected short illegalArgumentCtorIdx; - protected short illegalArgumentStringCtorIdx; - protected short invocationTargetCtorIdx; - protected short superCtorIdx; - protected short objectClass; - protected short toStringIdx; - protected short codeIdx; - protected short exceptionsIdx; - // Boxing - protected short booleanIdx; - protected short booleanCtorIdx; - protected short booleanUnboxIdx; - protected short byteIdx; - protected short byteCtorIdx; - protected short byteUnboxIdx; - protected short characterIdx; - protected short characterCtorIdx; - protected short characterUnboxIdx; - protected short doubleIdx; - protected short doubleCtorIdx; - protected short doubleUnboxIdx; - protected short floatIdx; - protected short floatCtorIdx; - protected short floatUnboxIdx; - protected short integerIdx; - protected short integerCtorIdx; - protected short integerUnboxIdx; - protected short longIdx; - protected short longCtorIdx; - protected short longUnboxIdx; - protected short shortIdx; - protected short shortCtorIdx; - protected short shortUnboxIdx; - - protected final short NUM_COMMON_CPOOL_ENTRIES = (short) 30; - protected final short NUM_BOXING_CPOOL_ENTRIES = (short) 72; - - // Requires that superClass has been set up - protected void emitCommonConstantPoolEntries() { - // + [UTF-8] "java/lang/Throwable" - // + [CONSTANT_Class_info] for above - // + [UTF-8] "java/lang/ClassCastException" - // + [CONSTANT_Class_info] for above - // + [UTF-8] "java/lang/NullPointerException" - // + [CONSTANT_Class_info] for above - // + [UTF-8] "java/lang/IllegalArgumentException" - // + [CONSTANT_Class_info] for above - // + [UTF-8] "java/lang/InvocationTargetException" - // + [CONSTANT_Class_info] for above - // + [UTF-8] "<init>" - // + [UTF-8] "()V" - // + [CONSTANT_NameAndType_info] for above - // + [CONSTANT_Methodref_info] for NullPointerException's constructor - // + [CONSTANT_Methodref_info] for IllegalArgumentException's constructor - // + [UTF-8] "(Ljava/lang/String;)V" - // + [CONSTANT_NameAndType_info] for "<init>(Ljava/lang/String;)V" - // + [CONSTANT_Methodref_info] for IllegalArgumentException's constructor taking a String - // + [UTF-8] "(Ljava/lang/Throwable;)V" - // + [CONSTANT_NameAndType_info] for "<init>(Ljava/lang/Throwable;)V" - // + [CONSTANT_Methodref_info] for InvocationTargetException's constructor - // + [CONSTANT_Methodref_info] for "super()" - // + [UTF-8] "java/lang/Object" - // + [CONSTANT_Class_info] for above - // + [UTF-8] "toString" - // + [UTF-8] "()Ljava/lang/String;" - // + [CONSTANT_NameAndType_info] for "toString()Ljava/lang/String;" - // + [CONSTANT_Methodref_info] for Object's toString method - // + [UTF-8] "Code" - // + [UTF-8] "Exceptions" - asm.emitConstantPoolUTF8("java/lang/Throwable"); - asm.emitConstantPoolClass(asm.cpi()); - throwableClass = asm.cpi(); - asm.emitConstantPoolUTF8("java/lang/ClassCastException"); - asm.emitConstantPoolClass(asm.cpi()); - classCastClass = asm.cpi(); - asm.emitConstantPoolUTF8("java/lang/NullPointerException"); - asm.emitConstantPoolClass(asm.cpi()); - nullPointerClass = asm.cpi(); - asm.emitConstantPoolUTF8("java/lang/IllegalArgumentException"); - asm.emitConstantPoolClass(asm.cpi()); - illegalArgumentClass = asm.cpi(); - asm.emitConstantPoolUTF8("java/lang/reflect/InvocationTargetException"); - asm.emitConstantPoolClass(asm.cpi()); - invocationTargetClass = asm.cpi(); - asm.emitConstantPoolUTF8("<init>"); - initIdx = asm.cpi(); - asm.emitConstantPoolUTF8("()V"); - asm.emitConstantPoolNameAndType(initIdx, asm.cpi()); - initNameAndTypeIdx = asm.cpi(); - asm.emitConstantPoolMethodref(nullPointerClass, initNameAndTypeIdx); - nullPointerCtorIdx = asm.cpi(); - asm.emitConstantPoolMethodref(illegalArgumentClass, initNameAndTypeIdx); - illegalArgumentCtorIdx = asm.cpi(); - asm.emitConstantPoolUTF8("(Ljava/lang/String;)V"); - asm.emitConstantPoolNameAndType(initIdx, asm.cpi()); - initStringNameAndTypeIdx = asm.cpi(); - asm.emitConstantPoolMethodref(illegalArgumentClass, initStringNameAndTypeIdx); - illegalArgumentStringCtorIdx = asm.cpi(); - asm.emitConstantPoolUTF8("(Ljava/lang/Throwable;)V"); - asm.emitConstantPoolNameAndType(initIdx, asm.cpi()); - asm.emitConstantPoolMethodref(invocationTargetClass, asm.cpi()); - invocationTargetCtorIdx = asm.cpi(); - asm.emitConstantPoolMethodref(superClass, initNameAndTypeIdx); - superCtorIdx = asm.cpi(); - asm.emitConstantPoolUTF8("java/lang/Object"); - asm.emitConstantPoolClass(asm.cpi()); - objectClass = asm.cpi(); - asm.emitConstantPoolUTF8("toString"); - asm.emitConstantPoolUTF8("()Ljava/lang/String;"); - asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi()); - asm.emitConstantPoolMethodref(objectClass, asm.cpi()); - toStringIdx = asm.cpi(); - asm.emitConstantPoolUTF8("Code"); - codeIdx = asm.cpi(); - asm.emitConstantPoolUTF8("Exceptions"); - exceptionsIdx = asm.cpi(); - } - - /** Constant pool entries required to be able to box/unbox primitive - types. Note that we don't emit these if we don't need them. */ - protected void emitBoxingContantPoolEntries() { - // * [UTF-8] "java/lang/Boolean" - // * [CONSTANT_Class_info] for above - // * [UTF-8] "(Z)V" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "booleanValue" - // * [UTF-8] "()Z" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "java/lang/Byte" - // * [CONSTANT_Class_info] for above - // * [UTF-8] "(B)V" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "byteValue" - // * [UTF-8] "()B" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "java/lang/Character" - // * [CONSTANT_Class_info] for above - // * [UTF-8] "(C)V" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "charValue" - // * [UTF-8] "()C" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "java/lang/Double" - // * [CONSTANT_Class_info] for above - // * [UTF-8] "(D)V" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "doubleValue" - // * [UTF-8] "()D" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "java/lang/Float" - // * [CONSTANT_Class_info] for above - // * [UTF-8] "(F)V" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "floatValue" - // * [UTF-8] "()F" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "java/lang/Integer" - // * [CONSTANT_Class_info] for above - // * [UTF-8] "(I)V" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "intValue" - // * [UTF-8] "()I" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "java/lang/Long" - // * [CONSTANT_Class_info] for above - // * [UTF-8] "(J)V" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "longValue" - // * [UTF-8] "()J" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "java/lang/Short" - // * [CONSTANT_Class_info] for above - // * [UTF-8] "(S)V" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // * [UTF-8] "shortValue" - // * [UTF-8] "()S" - // * [CONSTANT_NameAndType_info] for above - // * [CONSTANT_Methodref_info] for above - // Boolean - asm.emitConstantPoolUTF8("java/lang/Boolean"); - asm.emitConstantPoolClass(asm.cpi()); - booleanIdx = asm.cpi(); - asm.emitConstantPoolUTF8("(Z)V"); - asm.emitConstantPoolNameAndType(initIdx, asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi()); - booleanCtorIdx = asm.cpi(); - asm.emitConstantPoolUTF8("booleanValue"); - asm.emitConstantPoolUTF8("()Z"); - asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi()); - booleanUnboxIdx = asm.cpi(); - - // Byte - asm.emitConstantPoolUTF8("java/lang/Byte"); - asm.emitConstantPoolClass(asm.cpi()); - byteIdx = asm.cpi(); - asm.emitConstantPoolUTF8("(B)V"); - asm.emitConstantPoolNameAndType(initIdx, asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi()); - byteCtorIdx = asm.cpi(); - asm.emitConstantPoolUTF8("byteValue"); - asm.emitConstantPoolUTF8("()B"); - asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi()); - byteUnboxIdx = asm.cpi(); - - // Character - asm.emitConstantPoolUTF8("java/lang/Character"); - asm.emitConstantPoolClass(asm.cpi()); - characterIdx = asm.cpi(); - asm.emitConstantPoolUTF8("(C)V"); - asm.emitConstantPoolNameAndType(initIdx, asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi()); - characterCtorIdx = asm.cpi(); - asm.emitConstantPoolUTF8("charValue"); - asm.emitConstantPoolUTF8("()C"); - asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi()); - characterUnboxIdx = asm.cpi(); - - // Double - asm.emitConstantPoolUTF8("java/lang/Double"); - asm.emitConstantPoolClass(asm.cpi()); - doubleIdx = asm.cpi(); - asm.emitConstantPoolUTF8("(D)V"); - asm.emitConstantPoolNameAndType(initIdx, asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi()); - doubleCtorIdx = asm.cpi(); - asm.emitConstantPoolUTF8("doubleValue"); - asm.emitConstantPoolUTF8("()D"); - asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi()); - doubleUnboxIdx = asm.cpi(); - - // Float - asm.emitConstantPoolUTF8("java/lang/Float"); - asm.emitConstantPoolClass(asm.cpi()); - floatIdx = asm.cpi(); - asm.emitConstantPoolUTF8("(F)V"); - asm.emitConstantPoolNameAndType(initIdx, asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi()); - floatCtorIdx = asm.cpi(); - asm.emitConstantPoolUTF8("floatValue"); - asm.emitConstantPoolUTF8("()F"); - asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi()); - floatUnboxIdx = asm.cpi(); - - // Integer - asm.emitConstantPoolUTF8("java/lang/Integer"); - asm.emitConstantPoolClass(asm.cpi()); - integerIdx = asm.cpi(); - asm.emitConstantPoolUTF8("(I)V"); - asm.emitConstantPoolNameAndType(initIdx, asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi()); - integerCtorIdx = asm.cpi(); - asm.emitConstantPoolUTF8("intValue"); - asm.emitConstantPoolUTF8("()I"); - asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi()); - integerUnboxIdx = asm.cpi(); - - // Long - asm.emitConstantPoolUTF8("java/lang/Long"); - asm.emitConstantPoolClass(asm.cpi()); - longIdx = asm.cpi(); - asm.emitConstantPoolUTF8("(J)V"); - asm.emitConstantPoolNameAndType(initIdx, asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi()); - longCtorIdx = asm.cpi(); - asm.emitConstantPoolUTF8("longValue"); - asm.emitConstantPoolUTF8("()J"); - asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi()); - longUnboxIdx = asm.cpi(); - - // Short - asm.emitConstantPoolUTF8("java/lang/Short"); - asm.emitConstantPoolClass(asm.cpi()); - shortIdx = asm.cpi(); - asm.emitConstantPoolUTF8("(S)V"); - asm.emitConstantPoolNameAndType(initIdx, asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S2), asm.cpi()); - shortCtorIdx = asm.cpi(); - asm.emitConstantPoolUTF8("shortValue"); - asm.emitConstantPoolUTF8("()S"); - asm.emitConstantPoolNameAndType(sub(asm.cpi(), S1), asm.cpi()); - asm.emitConstantPoolMethodref(sub(asm.cpi(), S6), asm.cpi()); - shortUnboxIdx = asm.cpi(); - } - - // Necessary because of Java's annoying promotion rules - protected static short add(short s1, short s2) { - return (short) (s1 + s2); - } - - protected static short sub(short s1, short s2) { - return (short) (s1 - s2); - } - - protected boolean isStatic() { - return Modifier.isStatic(modifiers); - } - - protected boolean isPrivate() { - return Modifier.isPrivate(modifiers); - } - - /** Returns class name in "internal" form (i.e., '/' separators - instead of '.') */ - protected static String getClassName - (Class<?> c, boolean addPrefixAndSuffixForNonPrimitiveTypes) - { - if (c.isPrimitive()) { - if (c == Boolean.TYPE) { - return "Z"; - } else if (c == Byte.TYPE) { - return "B"; - } else if (c == Character.TYPE) { - return "C"; - } else if (c == Double.TYPE) { - return "D"; - } else if (c == Float.TYPE) { - return "F"; - } else if (c == Integer.TYPE) { - return "I"; - } else if (c == Long.TYPE) { - return "J"; - } else if (c == Short.TYPE) { - return "S"; - } else if (c == Void.TYPE) { - return "V"; - } - throw new InternalError("Should have found primitive type"); - } else if (c.isArray()) { - return "[" + getClassName(c.getComponentType(), true); - } else { - if (addPrefixAndSuffixForNonPrimitiveTypes) { - return internalize("L" + c.getName() + ";"); - } else { - return internalize(c.getName()); - } - } - } - - private static String internalize(String className) { - return className.replace('.', '/'); - } - - protected void emitConstructor() { - // Generate code into fresh code buffer - ClassFileAssembler cb = new ClassFileAssembler(); - // 0 incoming arguments - cb.setMaxLocals(1); - cb.opc_aload_0(); - cb.opc_invokespecial(superCtorIdx, 0, 0); - cb.opc_return(); - - // Emit method - emitMethod(initIdx, cb.getMaxLocals(), cb, null, null); - } - - // The descriptor's index in the constant pool must be (1 + - // nameIdx). "numArgs" must indicate ALL arguments, including the - // implicit "this" argument; double and long arguments each count - // as 2 in this count. The code buffer must NOT contain the code - // length. The exception table may be null, but if non-null must - // NOT contain the exception table's length. The checked exception - // indices may be null. - protected void emitMethod(short nameIdx, - int numArgs, - ClassFileAssembler code, - ClassFileAssembler exceptionTable, - short[] checkedExceptionIndices) - { - int codeLen = code.getLength(); - int excLen = 0; - if (exceptionTable != null) { - excLen = exceptionTable.getLength(); - if ((excLen % 8) != 0) { - throw new IllegalArgumentException("Illegal exception table"); - } - } - int attrLen = 12 + codeLen + excLen; - excLen = excLen / 8; // No-op if no exception table - - asm.emitShort(ACC_PUBLIC); - asm.emitShort(nameIdx); - asm.emitShort(add(nameIdx, S1)); - if (checkedExceptionIndices == null) { - // Code attribute only - asm.emitShort(S1); - } else { - // Code and Exceptions attributes - asm.emitShort(S2); - } - // Code attribute - asm.emitShort(codeIdx); - asm.emitInt(attrLen); - asm.emitShort(code.getMaxStack()); - asm.emitShort((short) Math.max(numArgs, code.getMaxLocals())); - asm.emitInt(codeLen); - asm.append(code); - asm.emitShort((short) excLen); - if (exceptionTable != null) { - asm.append(exceptionTable); - } - asm.emitShort(S0); // No additional attributes for Code attribute - if (checkedExceptionIndices != null) { - // Exceptions attribute - asm.emitShort(exceptionsIdx); - asm.emitInt(2 + 2 * checkedExceptionIndices.length); - asm.emitShort((short) checkedExceptionIndices.length); - for (int i = 0; i < checkedExceptionIndices.length; i++) { - asm.emitShort(checkedExceptionIndices[i]); - } - } - } - - protected short indexForPrimitiveType(Class<?> type) { - if (type == Boolean.TYPE) { - return booleanIdx; - } else if (type == Byte.TYPE) { - return byteIdx; - } else if (type == Character.TYPE) { - return characterIdx; - } else if (type == Double.TYPE) { - return doubleIdx; - } else if (type == Float.TYPE) { - return floatIdx; - } else if (type == Integer.TYPE) { - return integerIdx; - } else if (type == Long.TYPE) { - return longIdx; - } else if (type == Short.TYPE) { - return shortIdx; - } - throw new InternalError("Should have found primitive type"); - } - - protected short ctorIndexForPrimitiveType(Class<?> type) { - if (type == Boolean.TYPE) { - return booleanCtorIdx; - } else if (type == Byte.TYPE) { - return byteCtorIdx; - } else if (type == Character.TYPE) { - return characterCtorIdx; - } else if (type == Double.TYPE) { - return doubleCtorIdx; - } else if (type == Float.TYPE) { - return floatCtorIdx; - } else if (type == Integer.TYPE) { - return integerCtorIdx; - } else if (type == Long.TYPE) { - return longCtorIdx; - } else if (type == Short.TYPE) { - return shortCtorIdx; - } - throw new InternalError("Should have found primitive type"); - } - - /** Returns true for widening or identity conversions for primitive - types only */ - protected static boolean canWidenTo(Class<?> type, Class<?> otherType) { - if (!type.isPrimitive()) { - return false; - } - - // Widening conversions (from JVM spec): - // byte to short, int, long, float, or double - // short to int, long, float, or double - // char to int, long, float, or double - // int to long, float, or double - // long to float or double - // float to double - - if (type == Boolean.TYPE) { - if (otherType == Boolean.TYPE) { - return true; - } - } else if (type == Byte.TYPE) { - if ( otherType == Byte.TYPE - || otherType == Short.TYPE - || otherType == Integer.TYPE - || otherType == Long.TYPE - || otherType == Float.TYPE - || otherType == Double.TYPE) { - return true; - } - } else if (type == Short.TYPE) { - if ( otherType == Short.TYPE - || otherType == Integer.TYPE - || otherType == Long.TYPE - || otherType == Float.TYPE - || otherType == Double.TYPE) { - return true; - } - } else if (type == Character.TYPE) { - if ( otherType == Character.TYPE - || otherType == Integer.TYPE - || otherType == Long.TYPE - || otherType == Float.TYPE - || otherType == Double.TYPE) { - return true; - } - } else if (type == Integer.TYPE) { - if ( otherType == Integer.TYPE - || otherType == Long.TYPE - || otherType == Float.TYPE - || otherType == Double.TYPE) { - return true; - } - } else if (type == Long.TYPE) { - if ( otherType == Long.TYPE - || otherType == Float.TYPE - || otherType == Double.TYPE) { - return true; - } - } else if (type == Float.TYPE) { - if ( otherType == Float.TYPE - || otherType == Double.TYPE) { - return true; - } - } else if (type == Double.TYPE) { - if (otherType == Double.TYPE) { - return true; - } - } - - return false; - } - - /** Emits the widening bytecode for the given primitive conversion - (or none if the identity conversion). Requires that a primitive - conversion exists; i.e., canWidenTo must have already been - called and returned true. */ - protected static void emitWideningBytecodeForPrimitiveConversion - (ClassFileAssembler cb, - Class<?> fromType, - Class<?> toType) - { - // Note that widening conversions for integral types (i.e., "b2s", - // "s2i") are no-ops since values on the Java stack are - // sign-extended. - - // Widening conversions (from JVM spec): - // byte to short, int, long, float, or double - // short to int, long, float, or double - // char to int, long, float, or double - // int to long, float, or double - // long to float or double - // float to double - - if ( fromType == Byte.TYPE - || fromType == Short.TYPE - || fromType == Character.TYPE - || fromType == Integer.TYPE) { - if (toType == Long.TYPE) { - cb.opc_i2l(); - } else if (toType == Float.TYPE) { - cb.opc_i2f(); - } else if (toType == Double.TYPE) { - cb.opc_i2d(); - } - } else if (fromType == Long.TYPE) { - if (toType == Float.TYPE) { - cb.opc_l2f(); - } else if (toType == Double.TYPE) { - cb.opc_l2d(); - } - } else if (fromType == Float.TYPE) { - if (toType == Double.TYPE) { - cb.opc_f2d(); - } - } - - // Otherwise, was identity or no-op conversion. Fall through. - } - - protected short unboxingMethodForPrimitiveType(Class<?> primType) { - if (primType == Boolean.TYPE) { - return booleanUnboxIdx; - } else if (primType == Byte.TYPE) { - return byteUnboxIdx; - } else if (primType == Character.TYPE) { - return characterUnboxIdx; - } else if (primType == Short.TYPE) { - return shortUnboxIdx; - } else if (primType == Integer.TYPE) { - return integerUnboxIdx; - } else if (primType == Long.TYPE) { - return longUnboxIdx; - } else if (primType == Float.TYPE) { - return floatUnboxIdx; - } else if (primType == Double.TYPE) { - return doubleUnboxIdx; - } - throw new InternalError("Illegal primitive type " + primType.getName()); - } - - protected static final Class<?>[] primitiveTypes = new Class<?>[] { - Boolean.TYPE, - Byte.TYPE, - Character.TYPE, - Short.TYPE, - Integer.TYPE, - Long.TYPE, - Float.TYPE, - Double.TYPE - }; - - /** We don't consider "Void" to be a primitive type */ - protected static boolean isPrimitive(Class<?> c) { - return (c.isPrimitive() && c != Void.TYPE); - } - - protected int typeSizeInStackSlots(Class<?> c) { - if (c == Void.TYPE) { - return 0; - } - if (c == Long.TYPE || c == Double.TYPE) { - return 2; - } - return 1; - } - - private ClassFileAssembler illegalArgumentCodeBuffer; - protected ClassFileAssembler illegalArgumentCodeBuffer() { - if (illegalArgumentCodeBuffer == null) { - illegalArgumentCodeBuffer = new ClassFileAssembler(); - illegalArgumentCodeBuffer.opc_new(illegalArgumentClass); - illegalArgumentCodeBuffer.opc_dup(); - illegalArgumentCodeBuffer.opc_invokespecial(illegalArgumentCtorIdx, 0, 0); - illegalArgumentCodeBuffer.opc_athrow(); - } - - return illegalArgumentCodeBuffer; - } -} |