netlist_carpentry.core.exceptions ¶

A collection of custom exceptions for several error cases that may occur.

Classes:

CircuitStructureError –

Base class for all exceptions related to circuit structure issues.
StructureMismatchError –

Raised when two objects should have a matching structure but actually differ, e.g. in regards to their interface.
WidthMismatchError –

Raised when a wire's width does not match the port's width or vice versa.
MultipleDriverError –

Raised whenever two driver signals attempt to drive the same wire.
AlreadyConnectedError –

Raised when attempting to connect a port that is already connected.
MissingConnectionError –

Raised when a connection was expected but is not present (e.g. an unconnected port, where a connected port was expected).
InvalidDirectionError –

Raised when a port with an invalid direction is passed.
ObjectLockedError –

Raised when attempting to modify a locked (temporarily immutable) object.
SingleOwnershipError –

Raised when an object is already owned by a certain container and cannot be added to another container.
IdentifierConflictError –

Raised when an object with a duplicate identifier (usually an already existing name) is created.
ObjectNotFoundError –

Raised when a requested object does not exist in the circuit.
ParentNotFoundError –

Raised when the parent is requested for an object, but no parent exists.
PathResolutionError –

Raised when a circuit path cannot be resolved.
HierarchyError –

Raised whenever issues with the circuit's hierarchy arise.
DetachedSegmentError –

Raised when a segment object is created without a parent element.
UnsupportedOperationError –

Raised when an operation is not supported for a given instance type.
SplittingUnsupportedError –

Raised when attempting to split an unsplittable instance.
SignalError –

Base class for all exceptions related to signal issues.
EvaluationError –

Base class for all exceptions arising during signal evaluation.
InvalidSignalError –

Raised when an invalid signal is provided.
NetTypeError –

Raised when the wrong net type is provided, e.g. wire instead of reg.
SignalAssignmentError –

Raised when a signal cannot be assigned due to various reasons.
VerilogSyntaxError –

Raised whenever a Syntax Error with Verilog code occurs.
VcdLoadingError –

Raised whenever a VCD file could not be loaded.
MaxRetriesExceededError –

Raised when the maximum number of retries has been exceeded.