Authoring Constraints for nvtripy Operations

When to Use

• Defining type constraints for a new or existing operation
• Writing input_requirements or output_guarantees for @wrappers.interface
• Debugging constraint validation errors at runtime
• Understanding auto-type-casting behavior

Architecture Overview

The constraint system lives in nvtripy/frontend/constraints/ and consists of:

• Fetchers (fetcher.py): Extract values from function arguments or return values
• Logic (logic.py): Compose constraints with boolean operators
• Base (base.py): Abstract base class for all constraints
• Wrappers (nvtripy/frontend/wrappers.py): The @interface decorator that applies constraints

Core Components