--- old/src/jdk.scripting.nashorn/share/classes/jdk/nashorn/internal/codegen/types/IntType.java 2020-04-15 18:47:26.000000000 +0530 +++ /dev/null 2020-04-15 18:47:26.000000000 +0530 @@ -1,295 +0,0 @@ -/* - * 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. 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 jdk.nashorn.internal.codegen.types; - -import static jdk.internal.org.objectweb.asm.Opcodes.BIPUSH; -import static jdk.internal.org.objectweb.asm.Opcodes.I2D; -import static jdk.internal.org.objectweb.asm.Opcodes.I2L; -import static jdk.internal.org.objectweb.asm.Opcodes.IADD; -import static jdk.internal.org.objectweb.asm.Opcodes.IAND; -import static jdk.internal.org.objectweb.asm.Opcodes.ICONST_0; -import static jdk.internal.org.objectweb.asm.Opcodes.ICONST_1; -import static jdk.internal.org.objectweb.asm.Opcodes.ICONST_2; -import static jdk.internal.org.objectweb.asm.Opcodes.ICONST_3; -import static jdk.internal.org.objectweb.asm.Opcodes.ICONST_4; -import static jdk.internal.org.objectweb.asm.Opcodes.ICONST_5; -import static jdk.internal.org.objectweb.asm.Opcodes.ICONST_M1; -import static jdk.internal.org.objectweb.asm.Opcodes.ILOAD; -import static jdk.internal.org.objectweb.asm.Opcodes.IMUL; -import static jdk.internal.org.objectweb.asm.Opcodes.INEG; -import static jdk.internal.org.objectweb.asm.Opcodes.IOR; -import static jdk.internal.org.objectweb.asm.Opcodes.IRETURN; -import static jdk.internal.org.objectweb.asm.Opcodes.ISHL; -import static jdk.internal.org.objectweb.asm.Opcodes.ISHR; -import static jdk.internal.org.objectweb.asm.Opcodes.ISTORE; -import static jdk.internal.org.objectweb.asm.Opcodes.ISUB; -import static jdk.internal.org.objectweb.asm.Opcodes.IUSHR; -import static jdk.internal.org.objectweb.asm.Opcodes.IXOR; -import static jdk.internal.org.objectweb.asm.Opcodes.SIPUSH; -import static jdk.nashorn.internal.codegen.CompilerConstants.staticCallNoLookup; -import static jdk.nashorn.internal.runtime.JSType.UNDEFINED_INT; -import static jdk.nashorn.internal.runtime.UnwarrantedOptimismException.INVALID_PROGRAM_POINT; - -import jdk.internal.org.objectweb.asm.MethodVisitor; -import jdk.nashorn.internal.codegen.CompilerConstants; -import jdk.nashorn.internal.runtime.JSType; - -/** - * Type class: INT - */ -class IntType extends BitwiseType { - private static final long serialVersionUID = 1L; - - private static final CompilerConstants.Call TO_STRING = staticCallNoLookup(Integer.class, "toString", String.class, int.class); - private static final CompilerConstants.Call VALUE_OF = staticCallNoLookup(Integer.class, "valueOf", Integer.class, int.class); - - protected IntType() { - super("int", int.class, 2, 1); - } - - @Override - public Type nextWider() { - return NUMBER; - } - - @Override - public Class getBoxedType() { - return Integer.class; - } - - @Override - public char getBytecodeStackType() { - return 'I'; - } - - @Override - public Type ldc(final MethodVisitor method, final Object c) { - assert c instanceof Integer; - - final int value = ((Integer) c); - - switch (value) { - case -1: - method.visitInsn(ICONST_M1); - break; - case 0: - method.visitInsn(ICONST_0); - break; - case 1: - method.visitInsn(ICONST_1); - break; - case 2: - method.visitInsn(ICONST_2); - break; - case 3: - method.visitInsn(ICONST_3); - break; - case 4: - method.visitInsn(ICONST_4); - break; - case 5: - method.visitInsn(ICONST_5); - break; - default: - if (value == (byte) value) { - method.visitIntInsn(BIPUSH, value); - } else if (value == (short) value) { - method.visitIntInsn(SIPUSH, value); - } else { - method.visitLdcInsn(c); - } - break; - } - - return Type.INT; - } - - @Override - public Type convert(final MethodVisitor method, final Type to) { - if (to.isEquivalentTo(this)) { - return to; - } - - if (to.isNumber()) { - method.visitInsn(I2D); - } else if (to.isLong()) { - method.visitInsn(I2L); - } else if (to.isBoolean()) { - invokestatic(method, JSType.TO_BOOLEAN_I); - } else if (to.isString()) { - invokestatic(method, TO_STRING); - } else if (to.isObject()) { - invokestatic(method, VALUE_OF); - } else { - throw new UnsupportedOperationException("Illegal conversion " + this + " -> " + to); - } - - return to; - } - - @Override - public Type add(final MethodVisitor method, final int programPoint) { - if(programPoint == INVALID_PROGRAM_POINT) { - method.visitInsn(IADD); - } else { - ldc(method, programPoint); - JSType.ADD_EXACT.invoke(method); - } - return INT; - } - - @Override - public Type shr(final MethodVisitor method) { - method.visitInsn(IUSHR); - return INT; - } - - @Override - public Type sar(final MethodVisitor method) { - method.visitInsn(ISHR); - return INT; - } - - @Override - public Type shl(final MethodVisitor method) { - method.visitInsn(ISHL); - return INT; - } - - @Override - public Type and(final MethodVisitor method) { - method.visitInsn(IAND); - return INT; - } - - @Override - public Type or(final MethodVisitor method) { - method.visitInsn(IOR); - return INT; - } - - @Override - public Type xor(final MethodVisitor method) { - method.visitInsn(IXOR); - return INT; - } - - @Override - public Type load(final MethodVisitor method, final int slot) { - assert slot != -1; - method.visitVarInsn(ILOAD, slot); - return INT; - } - - @Override - public void store(final MethodVisitor method, final int slot) { - assert slot != -1; - method.visitVarInsn(ISTORE, slot); - } - - @Override - public Type sub(final MethodVisitor method, final int programPoint) { - if(programPoint == INVALID_PROGRAM_POINT) { - method.visitInsn(ISUB); - } else { - ldc(method, programPoint); - JSType.SUB_EXACT.invoke(method); - } - return INT; - } - - @Override - public Type mul(final MethodVisitor method, final int programPoint) { - if(programPoint == INVALID_PROGRAM_POINT) { - method.visitInsn(IMUL); - } else { - ldc(method, programPoint); - JSType.MUL_EXACT.invoke(method); - } - return INT; - } - - @Override - public Type div(final MethodVisitor method, final int programPoint) { - if (programPoint == INVALID_PROGRAM_POINT) { - JSType.DIV_ZERO.invoke(method); - } else { - ldc(method, programPoint); - JSType.DIV_EXACT.invoke(method); - } - return INT; - } - - @Override - public Type rem(final MethodVisitor method, final int programPoint) { - if (programPoint == INVALID_PROGRAM_POINT) { - JSType.REM_ZERO.invoke(method); - } else { - ldc(method, programPoint); - JSType.REM_EXACT.invoke(method); - } - return INT; - } - - @Override - public Type neg(final MethodVisitor method, final int programPoint) { - if(programPoint == INVALID_PROGRAM_POINT) { - method.visitInsn(INEG); - } else { - ldc(method, programPoint); - JSType.NEGATE_EXACT.invoke(method); - } - return INT; - } - - @Override - public void _return(final MethodVisitor method) { - method.visitInsn(IRETURN); - } - - @Override - public Type loadUndefined(final MethodVisitor method) { - method.visitLdcInsn(UNDEFINED_INT); - return INT; - } - - @Override - public Type loadForcedInitializer(final MethodVisitor method) { - method.visitInsn(ICONST_0); - return INT; - } - - @Override - public Type cmp(final MethodVisitor method, final boolean isCmpG) { - throw new UnsupportedOperationException("cmp" + (isCmpG ? 'g' : 'l')); - } - - @Override - public Type cmp(final MethodVisitor method) { - throw new UnsupportedOperationException("cmp"); - } - -}