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/*
* Copyright (c) 2010, 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 jdk.nashorn.internal.codegen.types;
import static jdk.internal.org.objectweb.asm.Opcodes.L2D;
import static jdk.internal.org.objectweb.asm.Opcodes.L2I;
import static jdk.internal.org.objectweb.asm.Opcodes.LADD;
import static jdk.internal.org.objectweb.asm.Opcodes.LAND;
import static jdk.internal.org.objectweb.asm.Opcodes.LCMP;
import static jdk.internal.org.objectweb.asm.Opcodes.LCONST_0;
import static jdk.internal.org.objectweb.asm.Opcodes.LCONST_1;
import static jdk.internal.org.objectweb.asm.Opcodes.LDIV;
import static jdk.internal.org.objectweb.asm.Opcodes.LLOAD;
import static jdk.internal.org.objectweb.asm.Opcodes.LMUL;
import static jdk.internal.org.objectweb.asm.Opcodes.LNEG;
import static jdk.internal.org.objectweb.asm.Opcodes.LOR;
import static jdk.internal.org.objectweb.asm.Opcodes.LREM;
import static jdk.internal.org.objectweb.asm.Opcodes.LRETURN;
import static jdk.internal.org.objectweb.asm.Opcodes.LSHL;
import static jdk.internal.org.objectweb.asm.Opcodes.LSHR;
import static jdk.internal.org.objectweb.asm.Opcodes.LSTORE;
import static jdk.internal.org.objectweb.asm.Opcodes.LSUB;
import static jdk.internal.org.objectweb.asm.Opcodes.LUSHR;
import static jdk.internal.org.objectweb.asm.Opcodes.LXOR;
import static jdk.nashorn.internal.codegen.CompilerConstants.staticCallNoLookup;
import jdk.internal.org.objectweb.asm.MethodVisitor;
import jdk.nashorn.internal.codegen.CompilerConstants;
import jdk.nashorn.internal.codegen.ObjectClassGenerator;
/**
* Type class: LONG
*/
class LongType extends BitwiseType {
private static final CompilerConstants.Call VALUE_OF = staticCallNoLookup(Long.class, "valueOf", Long.class, long.class);
protected LongType(final String name) {
super(name, long.class, 3, 2);
}
protected LongType() {
this("long");
}
@Override
public Type nextWider() {
return NUMBER;
}
@Override
public Class<?> getBoxedType() {
return Long.class;
}
@Override
public Type cmp(final MethodVisitor method) {
method.visitInsn(LCMP);
return INT;
}
@Override
public Type load(final MethodVisitor method, final int slot) {
assert slot != -1;
method.visitVarInsn(LLOAD, slot);
return LONG;
}
@Override
public void store(final MethodVisitor method, final int slot) {
assert slot != -1;
method.visitVarInsn(LSTORE, slot);
}
@Override
public Type ldc(final MethodVisitor method, final Object c) {
assert c instanceof Long;
final long value = (Long) c;
if (value == 0L) {
method.visitInsn(LCONST_0);
} else if (value == 1L) {
method.visitInsn(LCONST_1);
} else {
method.visitLdcInsn(c);
}
return Type.LONG;
}
@Override
public Type convert(final MethodVisitor method, final Type to) {
if (isEquivalentTo(to)) {
return to;
}
if (to.isNumber()) {
method.visitInsn(L2D);
} else if (to.isInteger()) {
method.visitInsn(L2I);
} else if (to.isBoolean()) {
method.visitInsn(L2I);
} else if (to.isObject()) {
invokeStatic(method, VALUE_OF);
} else {
assert false : "Illegal conversion " + this + " -> " + to;
}
return to;
}
@Override
public Type add(final MethodVisitor method) {
method.visitInsn(LADD);
return LONG;
}
@Override
public Type sub(final MethodVisitor method) {
method.visitInsn(LSUB);
return LONG;
}
@Override
public Type mul(final MethodVisitor method) {
method.visitInsn(LMUL);
return LONG;
}
@Override
public Type div(final MethodVisitor method) {
method.visitInsn(LDIV);
return LONG;
}
@Override
public Type rem(final MethodVisitor method) {
method.visitInsn(LREM);
return LONG;
}
@Override
public Type shr(final MethodVisitor method) {
method.visitInsn(LUSHR);
return LONG;
}
@Override
public Type sar(final MethodVisitor method) {
method.visitInsn(LSHR);
return LONG;
}
@Override
public Type shl(final MethodVisitor method) {
method.visitInsn(LSHL);
return LONG;
}
@Override
public Type and(final MethodVisitor method) {
method.visitInsn(LAND);
return LONG;
}
@Override
public Type or(final MethodVisitor method) {
method.visitInsn(LOR);
return LONG;
}
@Override
public Type xor(final MethodVisitor method) {
method.visitInsn(LXOR);
return LONG;
}
@Override
public Type neg(final MethodVisitor method) {
method.visitInsn(LNEG);
return LONG;
}
@Override
public void _return(final MethodVisitor method) {
method.visitInsn(LRETURN);
}
@Override
public Type loadUndefined(final MethodVisitor method) {
method.visitLdcInsn(ObjectClassGenerator.UNDEFINED_LONG);
return LONG;
}
@Override
public Type cmp(final MethodVisitor method, final boolean isCmpG) {
return cmp(method);
}
}
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