package org.jruby.ir.instructions;
import org.jruby.RubyArray;
import org.jruby.ir.IRScope;
import org.jruby.ir.IRVisitor;
import org.jruby.ir.Operation;
import org.jruby.ir.operands.Array;
import org.jruby.ir.operands.Fixnum;
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;
public class ReqdArgMultipleAsgnInstr extends MultipleAsgnBase implements FixedArityInstr {
private final int preArgsCount; // # of reqd args before rest-arg (-1 if we are fetching a pre-arg)
private final int postArgsCount; // # of reqd args after rest-arg (-1 if we are fetching a pre-arg)
public ReqdArgMultipleAsgnInstr(Variable result, Operand array, int preArgsCount, int postArgsCount, int index) {
super(Operation.MASGN_REQD, result, array, index);
this.preArgsCount = preArgsCount;
this.postArgsCount = postArgsCount;
}
public ReqdArgMultipleAsgnInstr(Variable result, Operand array, int index) {
this(result, array, -1, -1, index);
}
public int getPreArgsCount() { return preArgsCount; }
public int getPostArgsCount() { return postArgsCount; }
@Override
public Operand[] getOperands() {
return new Operand[] { array, new Fixnum(preArgsCount), new Fixnum(postArgsCount), new Fixnum(index) };
}
@Override
public String toString() {
return super.toString() + "(" + array + ", " + index + ", " + preArgsCount + ", " + postArgsCount + ")";
}
@Override
public Operand simplifyAndGetResult(IRScope scope, Map<Operand, Operand> valueMap) {
simplifyOperands(valueMap, false);
Operand val = array.getValue(valueMap);
if (val instanceof Array) {
Array a = (Array)val;
int n = a.size();
int i = IRRuntimeHelpers.irReqdArgMultipleAsgnIndex(n, preArgsCount, index, postArgsCount);
return i == -1 ? scope.getManager().getNil() : a.get(i);
} else {
return null;
}
}
@Override
public Instr clone(CloneInfo ii) {
return new ReqdArgMultipleAsgnInstr(ii.getRenamedVariable(result), array.cloneForInlining(ii), preArgsCount, postArgsCount, index);
}
@Override
public Object interpret(ThreadContext context, StaticScope currScope, DynamicScope currDynScope, IRubyObject self, Object[] temp) {
// ENEBO: Can I assume since IR figured this is an internal array it will be RubyArray like this?
RubyArray rubyArray = (RubyArray) array.retrieve(context, self, currScope, currDynScope, temp);
return IRRuntimeHelpers.irReqdArgMultipleAsgn(context, rubyArray, preArgsCount, index, postArgsCount);
}
@Override
public void visit(IRVisitor visitor) {
visitor.ReqdArgMultipleAsgnInstr(this);
}
}