org.jruby.compiler.ir.instructions.AttrAssignInstr Maven / Gradle / Ivy
package org.jruby.compiler.ir.instructions;
import java.util.List;
import java.util.Map;
import org.jruby.RubyString;
import org.jruby.compiler.ir.operands.Label;
import org.jruby.compiler.ir.Operation;
import org.jruby.compiler.ir.operands.Operand;
import org.jruby.compiler.ir.representations.InlinerInfo;
import org.jruby.interpreter.InterpreterContext;
import org.jruby.runtime.builtin.IRubyObject;
public class AttrAssignInstr extends MultiOperandInstr {
private Operand obj; // SSS: Document this. What is this?
private Operand attr; // SSS: Document this. What is this?
private Operand value; // SSS: Document this. What is this?
private Operand[] args;
public AttrAssignInstr(Operand obj, Operand attr, Operand[] args) {
super(Operation.ATTR_ASSIGN, null);
this.obj = obj;
this.attr = attr;
this.args = args;
this.value = null;
}
public AttrAssignInstr(Operand obj, Operand attr, Operand[] args, Operand value) {
super(Operation.ATTR_ASSIGN, null);
this.obj = obj;
this.attr = attr;
this.args = args;
this.value = value;
}
public Operand[] getOperands() {
Operand[] argsArray = new Operand[args.length + ((this.value == null) ? 2 : 3)];
int i = 2;
argsArray[0] = obj;
argsArray[1] = attr;
if (value != null) {
argsArray[2] = value;
i++;
}
// SSS FIXME: Use Arraycopy?
for (Operand o: args) {
argsArray[i++] = o;
}
return argsArray;
}
@Override
public void simplifyOperands(Map valueMap) {
obj = obj.getSimplifiedOperand(valueMap);
attr = attr.getSimplifiedOperand(valueMap);
for (int i = 0; i < args.length; i++) {
args[i] = args[i].getSimplifiedOperand(valueMap);
}
if (value != null) value = value.getSimplifiedOperand(valueMap);
}
public Instr cloneForInlining(InlinerInfo ii) {
int i = 0;
Operand[] clonedArgs = new Operand[args.length];
for (Operand a : args)
clonedArgs[i++] = a.cloneForInlining(ii);
return new AttrAssignInstr(obj.cloneForInlining(ii), attr.cloneForInlining(ii), clonedArgs, value == null ? null : value.cloneForInlining(ii));
}
@Override
public Label interpret(InterpreterContext interp, IRubyObject self) {
IRubyObject receiver = (IRubyObject) obj.retrieve(interp);
String attrMeth = ((RubyString) attr.retrieve(interp)).asJavaString();
IRubyObject[] callArgs = new IRubyObject[args.length + ((value == null) ? 0 : 1)];
int i = 0;
// SSS FIXME: Is this correct? Is value the 1st arg (or the last arg??)
if (value != null) {
callArgs[0] = (IRubyObject)value.retrieve(interp);
i++;
}
for ( ; i < callArgs.length; i++)
callArgs[i] = (IRubyObject) args[i].retrieve(interp);
receiver.callMethod(interp.getContext(), attrMeth, callArgs);
return null;
}
}