io.github.dmlloyd.classfile.instruction.MonitorInstruction Maven / Gradle / Ivy
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package io.github.dmlloyd.classfile.instruction;
import io.github.dmlloyd.classfile.CodeElement;
import io.github.dmlloyd.classfile.CodeModel;
import io.github.dmlloyd.classfile.Instruction;
import io.github.dmlloyd.classfile.Opcode;
import io.github.dmlloyd.classfile.impl.AbstractInstruction;
import io.github.dmlloyd.classfile.impl.Util;
import io.github.dmlloyd.classfile.extras.PreviewFeature;
/**
* Models a {@code monitorenter} or {@code monitorexit} instruction in the
* {@code code} array of a {@code Code} attribute. Delivered as a {@link
* CodeElement} when traversing the elements of a {@link CodeModel}.
*
* @since 22
*/
@PreviewFeature(feature = PreviewFeature.Feature.CLASSFILE_API)
public sealed interface MonitorInstruction extends Instruction
permits AbstractInstruction.UnboundMonitorInstruction {
/**
* {@return a monitor instruction}
*
* @param op the opcode for the specific type of monitor instruction,
* which must be of kind {@link Opcode.Kind#MONITOR}
* @throws IllegalArgumentException if the opcode kind is not
* {@link Opcode.Kind#MONITOR}.
*/
static MonitorInstruction of(Opcode op) {
Util.checkKind(op, Opcode.Kind.MONITOR);
return new AbstractInstruction.UnboundMonitorInstruction(op);
}
}