ACPI_STATUS AcpiDsEvalDataObjectOperands	(	ACPI_WALK_STATE *	WalkState,
		ACPI_PARSE_OBJECT *	Op,
		ACPI_OPERAND_OBJECT *	ObjDesc
	)
Definition at line 688 of file dsopcode.c.
Referenced by AcpiDsExecEndOp().
{
    ACPI_STATUS             Status;
    ACPI_OPERAND_OBJECT     *ArgDesc;
    UINT32                  Length;


    ACPI_FUNCTION_TRACE (DsEvalDataObjectOperands);


    /* The first operand (for all of these data objects) is the length */

    /*
     * Set proper index into operand stack for AcpiDsObjStackPush
     * invoked inside AcpiDsCreateOperand.
     */
    WalkState->OperandIndex = WalkState->NumOperands;

    Status = AcpiDsCreateOperand (WalkState, Op->Common.Value.Arg, 1);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    Status = AcpiExResolveOperands (WalkState->Opcode,
                    &(WalkState->Operands [WalkState->NumOperands -1]),
                    WalkState);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    /* Extract length operand */

    ArgDesc = WalkState->Operands [WalkState->NumOperands - 1];
    Length = (UINT32) ArgDesc->Integer.Value;

    /* Cleanup for length operand */

    Status = AcpiDsObjStackPop (1, WalkState);
    if (ACPI_FAILURE (Status))
    {
        return_ACPI_STATUS (Status);
    }

    AcpiUtRemoveReference (ArgDesc);

    /*
     * Create the actual data object
     */
    switch (Op->Common.AmlOpcode)
    {
    case AML_BUFFER_OP:

        Status = AcpiDsBuildInternalBufferObj (WalkState, Op, Length, &ObjDesc);
        break;

    case AML_PACKAGE_OP:
    case AML_VAR_PACKAGE_OP:

        Status = AcpiDsBuildInternalPackageObj (WalkState, Op, Length, &ObjDesc);
        break;

    default:
        return_ACPI_STATUS (AE_AML_BAD_OPCODE);
    }

    if (ACPI_SUCCESS (Status))
    {
        /*
         * Return the object in the WalkState, unless the parent is a package -
         * in this case, the return object will be stored in the parse tree
         * for the package.
         */
        if ((!Op->Common.Parent) ||
            ((Op->Common.Parent->Common.AmlOpcode != AML_PACKAGE_OP) &&
             (Op->Common.Parent->Common.AmlOpcode != AML_VAR_PACKAGE_OP) &&
             (Op->Common.Parent->Common.AmlOpcode != AML_NAME_OP)))
        {
            WalkState->ResultObj = ObjDesc;
        }
    }

    return_ACPI_STATUS (Status);
}
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