daphne-project/daphne

Reconsider type inference for `EwPowOp`

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#776 opened on Jul 2, 2024

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buggood first issue

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Description

The DaphneDSL expression 10 ^ -3 yields the unexpected result 0, since the results is returned as an integer just like the argument. It would be more intuitive to return 0.001, just like the DaphneDSL expression 10.0 ^ -3 does. To this end, we need to adapt the type inference for EwPowOp.

Contributor guide

Research direction
Investigate the type inference logic for EwPowOp to ensure that a negative integer exponent results in a floating point return type (e.g., `10 ^ 3` yields `0.001`). Trace the type inference in the compiler frontend.
Tech stack
cpp
Domain
backendcompilers
Issue type
Bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
Half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
C++compiler basics
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
35