JuliaLang/julia

implement String(::Base.Generator)

Open

#57,072 opened on Jan 16, 2025

View on GitHub
 (10 comments) (2 reactions) (0 assignees)Julia (5,773 forks)batch import
good first issuehelp wantedstrings

Repository metrics

Stars
 (48,709 stars)
PR merge metrics
 (Avg merge 20d 6h) (157 merged PRs in 30d)

Description

I was hoping that this would work:

String(Iterators.map(c->c+1, "Hello, world"))

Instead it's a method error. We should allow the String constructor to take a generator argument.

Contributor guide

Research direction
Understand the String constructor in Julia and how to add a new method for Generator type. Look at the implementation of String for other iterable types and follow the pattern to implement String(::Base.Generator). Check the Julia documentation for method dispatch and type hierarchy.
Tech stack
None
Domain
backend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
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
GitJulia
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
75