Absolute path
An absolute path is a Rust path that identifies an item from a crate or other root namespace through complete namespace qualification.
Refactoring to Rust
An absolute path is a Rust path resolved from a crate or other root namespace.
- How it is used
- Accesses items across nested Rust modules from a crate root.
- How deep it goes
- Explains crate roots, crate, pub, and use through parallel module examples, but stops short of deeper namespace mechanics.
- Examples
- Uses std::io::stdin, a libsnack module tree, lifecycle functions, and use crate declarations.
- What you can do after
- Apply it via Rust module paths to reference current-crate and external-crate items.
Write Powerful Rust Macros
A full path is a Rust path that identifies an item through its complete namespace qualification.
- How it is used
- Uses complete namespace qualification to make Rust macro-generated code independent of caller imports and names.
- How deep it goes
- Explains missing imports, name collisions, and implementation hiding, then demonstrates qualified types and trait bounds in generated code.
- Examples
- Demonstrates std::collections::HashMap, core::default::Default, quote!, quote_spanned!, and compiler errors from unresolved or colliding names.
- What you can do after
- Build it from scratch by qualifying dependencies in generated Rust code and reducing import, collision, and implementation-hiding problems.
Read how Write Powerful Rust Macros explains absolute path →
Related concepts
- hash mapuses · A hash map is a key-value data structure that uses a hash function to locate entries and support efficient lookup, insertion, and removal by key.
- Defaultuses · Default is a Rust standard-library trait that defines how to construct a type’s default value.
- relative pathcontrasts with · A Rust relative path identifies an item from the current namespace or another namespace relative to the location where the path appears.
- crate keyworduses · The crate keyword is a Rust path segment that refers to the root of the current crate.
- use declarationused by · A use declaration is Rust syntax that brings names or items from a module or crate into scope for unqualified access.
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