Skip to content
Navigation Menu
Sign in
Products
Platform
GitHub
Repository hosting, code review, and collaboration
Copilot
AI coding agent for tasks, projects and automated work
Build & Ship
Actions
CI/CD and automation
Code Quality
Quality analysis, fixes, and enforcement
Codespaces
Cloud development environments
Secure
Code Security
Vulnerability detection and remediation
Secret Protection
Secret scanning and leak prevention
All Features
Developers
Learn
Documentation
Training
Certifications
Build
Build with Copilot
Customize Copilot
Integrations
Explore
Trending repos
GitHub Sponsors
Events
Changelog
Changelog
Your source for the latest features, improvements, and fixes across GitHub products, all in one place.
Businesses
By Stage
Enterprises
Team
Startups
Nonprofits
By Industry
Healthcare
Financial services
Manufacturing
Government
See all industries
Evaluate GitHub
Why GitHub
Customer Stories
Business insights
Trust Center
Add-ons
GitHub Advanced Security
Enterprise-grade code security
Copilot for business
Enterprise-grade AI features
Premium Support
Enterprise-grade 24/7 support
Resources
Learn & Connect
Documentation
Resource center
Blog
Events & webinars
Community Forum
Customer Stories
Integrations
Support
Customer support
Training
GitHub Status
Company
About
Partners
Changelog
GitHub Universe
GitHub Universe
The event for developers, by developers — talks, workshops, and what’s next for GitHub.
Pricing
Search
/
Sign in
Sign up
Appearance settings
You signed in with another tab or window.
Reload
to refresh your session.
You signed out in another tab or window.
Reload
to refresh your session.
You switched accounts on another tab or window.
Reload
to refresh your session.
Dismiss alert
{{ message }}
rust-lang
rfcs
Repository navigation
Code
Issues
581
(581)
Pull requests
218
(218)
Actions
Projects
Security and quality
Insights
More
items
RFC: Declarative macro metavariable expressions
- #3086
#3086
Merged
nikomatsakis
merged 6 commits into
rust-lang:master
rust-lang/rfcs:master
from
markbt:macro_metavar_expr
markbt/rfcs:macro_metavar_expr
Copy head branch name to clipboard
Mar 26, 2021
Conversation
Commits
6
(6)
Checks
Files changed
Merged
RFC: Declarative macro metavariable expressions
#3086
nikomatsakis
merged 6 commits into
rust-lang:master
rust-lang/rfcs:master
from
markbt:macro_metavar_expr
markbt/rfcs:macro_metavar_expr
Copy head branch name to clipboard
Commits
Commits on Feb 21, 2021
declarative macro metavariable expressions
markbt
committed
6ad0b1d
View commit details
Copy full SHA for 6ad0b1d
Browse repository at this point
Commits on Mar 13, 2021
clarify that count, index and length expand to integer literals
markbt
committed
abfc9f2
View commit details
Copy full SHA for abfc9f2
Browse repository at this point
add section about RFC 88
markbt
committed
7ef6540
View commit details
Copy full SHA for 7ef6540
Browse repository at this point
Add description of alternative syntax options
markbt
committed
fb506f2
View commit details
Copy full SHA for fb506f2
Browse repository at this point
Add section describing why new syntax is needed
markbt
committed
843b9f8
View commit details
Copy full SHA for 843b9f8
Browse repository at this point
Commits on Mar 16, 2021
clarify that expanded literals are unsuffixed
markbt
committed
b3b5009
View commit details
Copy full SHA for b3b5009
Browse repository at this point
You can’t perform that action at this time.