package jdk.nashorn.internal.codegen.types;
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.ICONST_0;
import static jdk.internal.org.objectweb.asm.Opcodes.ICONST_1;
import static jdk.internal.org.objectweb.asm.Opcodes.ILOAD;
import static jdk.internal.org.objectweb.asm.Opcodes.IRETURN;
import static jdk.internal.org.objectweb.asm.Opcodes.ISTORE;
import static jdk.nashorn.internal.codegen.CompilerConstants.staticCallNoLookup;
import static jdk.nashorn.internal.runtime.JSType.UNDEFINED_INT;
import jdk.internal.org.objectweb.asm.MethodVisitor;
import jdk.nashorn.internal.codegen.CompilerConstants;
public final class BooleanType extends Type {
private static final long serialVersionUID = 1L;
private static final CompilerConstants.Call VALUE_OF = staticCallNoLookup(Boolean.class, "valueOf", Boolean.class, boolean.class);
private static final CompilerConstants.Call TO_STRING = staticCallNoLookup(Boolean.class, "toString", String.class, boolean.class);
protected BooleanType() {
super("boolean", boolean.class, 1, 1);
}
@Override
public Type nextWider() {
return INT;
}
@Override
public Class<?> getBoxedType() {
return Boolean.class;
}
@Override
public char getBytecodeStackType() {
return 'I';
}
@Override
public Type loadUndefined(final MethodVisitor method) {
method.visitLdcInsn(UNDEFINED_INT);
return BOOLEAN;
}
@Override
public Type loadForcedInitializer(final MethodVisitor method) {
method.visitInsn(ICONST_0);
return BOOLEAN;
}
@Override
public void _return(final MethodVisitor method) {
method.visitInsn(IRETURN);
}
@Override
public Type load(final MethodVisitor method, final int slot) {
assert slot != -1;
method.visitVarInsn(ILOAD, slot);
return BOOLEAN;
}
@Override
public void store(final MethodVisitor method, final int slot) {
assert slot != -1;
method.visitVarInsn(ISTORE, slot);
}
@Override
public Type ldc(final MethodVisitor method, final Object c) {
assert c instanceof Boolean;
method.visitInsn((Boolean) c ? ICONST_1 : ICONST_0);
return BOOLEAN;
}
@Override
public Type convert(final MethodVisitor method, final Type to) {
if (isEquivalentTo(to)) {
return to;
}
if (to.isNumber()) {
method.visitInsn(I2D);
} else if (to.isLong()) {
method.visitInsn(I2L);
} else if (to.isInteger()) {
} 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) {
return Type.INT.add(method, programPoint);
}
}