Net::D...terator(3pm) User Contributed Perl Documentation Net::D...terator(3pm)
NAME
Net::DBus::Test::MockIterator - Iterator over a mock message
SYNOPSIS
Creating a new message
my $msg = new Net::DBus::Test::MockMessage
my $iterator = $msg->iterator;
$iterator->append_boolean(1);
$iterator->append_byte(123);
Reading from a message
my $msg = ...get it from somewhere...
my $iter = $msg->iterator();
my $i = 0;
while ($iter->has_next()) {
$iter->next();
$i++;
if ($i == 1) {
my $val = $iter->get_boolean();
} elsif ($i == 2) {
my $val = $iter->get_byte();
}
}
DESCRIPTION
This module provides a "mock" counterpart to the
Net::DBus::Binding::Iterator object which is capable of iterating over
mock message objects. Instances of this module are not created directly,
instead they are obtained via the "iterator" method on the
Net::DBus::Test::MockMessage module.
METHODS
$res = $iter->has_next()
Determines if there are any more fields in the message itertor to be
read. Returns a positive value if there are more fields, zero
otherwise.
$success = $iter->next()
Skips the iterator onto the next field in the message. Returns a
positive value if the current field pointer was successfully
advanced, zero otherwise.
my $val = $iter->get_boolean()
$iter->append_boolean($val);
Read or write a boolean value from/to the message iterator
my $val = $iter->get_byte()
$iter->append_byte($val);
Read or write a single byte value from/to the message iterator.
my $val = $iter->get_string()
$iter->append_string($val);
Read or write a UTF-8 string value from/to the message iterator
my $val = $iter->get_object_path()
$iter->append_object_path($val);
Read or write a UTF-8 string value, whose contents is a valid object
path, from/to the message iterator
my $val = $iter->get_signature()
$iter->append_signature($val);
Read or write a UTF-8 string, whose contents is a valid type
signature, value from/to the message iterator
my $val = $iter->get_int16()
$iter->append_int16($val);
Read or write a signed 16 bit value from/to the message iterator
my $val = $iter->get_uint16()
$iter->append_uint16($val);
Read or write an unsigned 16 bit value from/to the message iterator
my $val = $iter->get_int32()
$iter->append_int32($val);
Read or write a signed 32 bit value from/to the message iterator
my $val = $iter->get_uint32()
$iter->append_uint32($val);
Read or write an unsigned 32 bit value from/to the message iterator
my $val = $iter->get_int64()
$iter->append_int64($val);
Read or write a signed 64 bit value from/to the message iterator. An
error will be raised if this build of Perl does not support 64 bit
integers
my $val = $iter->get_uint64()
$iter->append_uint64($val);
Read or write an unsigned 64 bit value from/to the message iterator.
An error will be raised if this build of Perl does not support 64
bit integers
my $val = $iter->get_double()
$iter->append_double($val);
Read or write a double precision floating point value from/to the
message iterator
my $val = $iter->get_unix_fd()
$iter->append_unix_fd($val);
Read or write a unix_fd value from/to the message iterator
my $value = $iter->get()
my $value = $iter->get($type);
Get the current value pointed to by this iterator. If the optional
$type parameter is supplied, the wire type will be compared with the
desired type & a warning output if their differ. The $type value
must be one of the "Net::DBus::Binding::Message::TYPE*" constants.
my $hashref = $iter->get_dict()
If the iterator currently points to a dictionary value, unmarshalls
and returns the value as a hash reference.
my $hashref = $iter->get_array()
If the iterator currently points to an array value, unmarshalls and
returns the value as a array reference.
my $hashref = $iter->get_variant()
If the iterator currently points to a variant value, unmarshalls and
returns the value contained in the variant.
my $hashref = $iter->get_struct()
If the iterator currently points to an struct value, unmarshalls and
returns the value as a array reference. The values in the array
correspond to members of the struct.
$iter->append($value)
$iter->append($value, $type)
Appends a value to the message associated with this iterator. The
value is marshalled into wire format, according to the following
rules.
If the $value is an instance of Net::DBus::Binding::Value, the
embedded data type is used.
If the $type parameter is supplied, that is taken to represent the
data type. The type must be one of the
"Net::DBus::Binding::Message::TYPE_*" constants.
Otherwise, the data type is chosen to be a string, dict or array
according to the perl data types SCALAR, HASH or ARRAY.
my $type = $iter->guess_type($value)
Make a best guess at the on the wire data type to use for
marshalling $value. If the value is a hash reference, the dictionary
type is returned; if the value is an array reference the array type
is returned; otherwise the string type is returned.
my $sig = $iter->format_signature($type)
Given a data type representation, construct a corresponding
signature string
$iter->append_array($value, $type)
Append an array of values to the message. The $value parameter must
be an array reference, whose elements all have the same data type
specified by the $type parameter.
$iter->append_struct($value, $type)
Append a struct to the message. The $value parameter must be an
array reference, whose elements correspond to members of the
structure. The $type parameter encodes the type of each member of
the struct.
$iter->append_dict($value, $type)
Append a dictionary to the message. The $value parameter must be an
hash reference.The $type parameter encodes the type of the key and
value of the hash.
$iter->append_variant($value)
Append a value to the message, encoded as a variant type. The $value
can be of any type, however, the variant will be encoded as either a
string, dictionary or array according to the rules of the
"guess_type" method.
my $type = $iter->get_arg_type
Retrieves the type code of the value pointing to by this iterator.
The returned code will correspond to one of the constants
"Net::DBus::Binding::Message::TYPE_*"
my $type = $iter->get_element_type
If the iterator points to an array, retrieves the type code of array
elements. The returned code will correspond to one of the constants
"Net::DBus::Binding::Message::TYPE_*"
BUGS
It doesn't completely replicate the API of Net::DBus::Binding::Iterator,
merely enough to make the high level bindings work in a test scenario.
AUTHOR
Daniel P. Berrange
COPYRIGHT
Copyright (C) 2005-2009 Daniel P. Berrange
SEE ALSO
Net::DBus::Test::MockMessage, Net::DBus::Binding::Iterator,
<http://www.mockobjects.com/Faq.html>
perl v5.40.0 2024-10-15 Net::D...terator(3pm)
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