package org.jruby.ir.instructions;
import org.jruby.RubyRegexp;
import org.jruby.ir.IRScope;
import org.jruby.ir.IRVisitor;
import org.jruby.ir.Operation;
import org.jruby.ir.operands.Operand;
import org.jruby.ir.operands.Variable;
import org.jruby.ir.runtime.IRRuntimeHelpers;
import org.jruby.ir.transformations.inlining.CloneInfo;
import org.jruby.parser.StaticScope;
import org.jruby.runtime.DynamicScope;
import org.jruby.runtime.ThreadContext;
import org.jruby.runtime.builtin.IRubyObject;
import java.util.Map;
import static org.jruby.ir.IRFlags.USES_BACKREF_OR_LASTLINE;
public class Match3Instr extends Instr implements ResultInstr, FixedArityInstr {
private Variable result;
private Operand receiver;
private Operand arg;
public Match3Instr(Variable result, Operand receiver, Operand arg) {
super(Operation.MATCH3);
assert result != null: "Match3Instr result is null";
this.result = result;
this.receiver = receiver;
this.arg = arg;
}
public Operand getArg() {
return arg;
}
public Operand getReceiver() {
return receiver;
}
@Override
public Operand[] getOperands() {
return new Operand[] { receiver, arg };
}
@Override
public String toString() {
return super.toString() + "(" + receiver + ", " + arg + ")";
}
@Override
public boolean computeScopeFlags(IRScope scope) {
// $~ is implicitly used since Backref and NthRef operands
// access it and $~ is not made explicit in those operands.
scope.getFlags().add(USES_BACKREF_OR_LASTLINE);
return true;
}
@Override
public void simplifyOperands(Map<Operand, Operand> valueMap, boolean force) {
receiver = receiver.getSimplifiedOperand(valueMap, force);
arg = arg.getSimplifiedOperand(valueMap, force);
}
public Variable getResult() {
return result;
}
public void updateResult(Variable v) {
this.result = v;
}
@Override
public Instr clone(CloneInfo ii) {
return new Match3Instr((Variable) result.cloneForInlining(ii),
receiver.cloneForInlining(ii), arg.cloneForInlining(ii));
}
@Override
public Object interpret(ThreadContext context, StaticScope currScope, DynamicScope currDynScope, IRubyObject self, Object[] temp) {
RubyRegexp regexp = (RubyRegexp) receiver.retrieve(context, self, currScope, currDynScope, temp);
IRubyObject argValue = (IRubyObject) arg.retrieve(context, self, currScope, currDynScope, temp);
return IRRuntimeHelpers.match3(context, regexp, argValue);
}
@Override
public void visit(IRVisitor visitor) {
visitor.Match3Instr(this);
}
}