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$port TCL engine command

Those commands manipulate port objects and return information about them. They all take a port object as their first argument, noted $port in the following command descriptions. Such an object is typically returned by other procedures, such as $component ports.

$port name

Return the name of the port as a string.

$port dir

Return in or out depending on the direction of the port.

$port kind

Return simple or multiple depending on the kind of the port.

$port visibility

Return either hidden or default depending on the visibility of the port.

$port component

Return the component object in which the port is defined.

$port type

Return the type object defining the port itself. (not the same as datatype, see below).

$port datatype

Return the data type to be published in the port.

$port doc

Return a string containing the documentation of the port defined in the doc attributes of the .gen description.

$port throws

Return a list of exceptions possibly raised by the port.

$port loc [file|line|column|context]

Return a list describing the source location where that port is defined. The list contains four elements: the file name, the line number, the column number and the original component context of the definition. If an optional argument is given, only the corresponding element is returned.

$port class

Always returns the string "port". Useful to determine at runtime that the object is a port object.