dtolnay/watt

Hand off code to a preinstalled optimized runtime if available

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#2 opened on Oct 14, 2019

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help wanted

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Description

From some rough tests, Watt macro expansion when compiling the runtime in release mode is about 15x faster than when the runtime is compiled in debug mode.

Maybe we can set it up such that users can run something like cargo install watt-runtime and then our debug-mode runtime can detect whether that optimized runtime is installed; if it is, then handing off the program to it.

Contributor guide

Research direction
Research how to detect if 'watt runtime' binary is installed on the system, and how to delegate execution to it. Look into existing patterns in Rust projects for detecting external executables.
Tech stack
rust
Domain
clitooling
Issue type
Feature
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
RustcargoGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45