Introduction
In this lab, we explore the annotation of lifetimes in trait methods, which is similar to functions. It involves annotating lifetimes in the impl
block as well. The provided code demonstrates an example where a struct Borrowed
has a lifetime annotation, and the Default
trait is implemented for it using the annotated lifetime. The main function then creates an instance of Borrowed
using the Default::default()
method, showcasing the usage of lifetimes in trait methods.
Note: If the lab does not specify a file name, you can use any file name you want. For example, you can use main.rs
, compile and run it with rustc main.rs && ./main
.
Skills Graph
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flowchart RL
rust(("`Rust`")) -.-> rust/BasicConceptsGroup(["`Basic Concepts`"])
rust(("`Rust`")) -.-> rust/DataTypesGroup(["`Data Types`"])
rust(("`Rust`")) -.-> rust/FunctionsandClosuresGroup(["`Functions and Closures`"])
rust(("`Rust`")) -.-> rust/DataStructuresandEnumsGroup(["`Data Structures and Enums`"])
rust/BasicConceptsGroup -.-> rust/variable_declarations("`Variable Declarations`")
rust/DataTypesGroup -.-> rust/integer_types("`Integer Types`")
rust/FunctionsandClosuresGroup -.-> rust/function_syntax("`Function Syntax`")
rust/FunctionsandClosuresGroup -.-> rust/expressions_statements("`Expressions and Statements`")
rust/DataStructuresandEnumsGroup -.-> rust/method_syntax("`Method Syntax`")
subgraph Lab Skills
rust/variable_declarations -.-> lab-99208{{"`Lifetime Annotation in Rust Traits`"}}
rust/integer_types -.-> lab-99208{{"`Lifetime Annotation in Rust Traits`"}}
rust/function_syntax -.-> lab-99208{{"`Lifetime Annotation in Rust Traits`"}}
rust/expressions_statements -.-> lab-99208{{"`Lifetime Annotation in Rust Traits`"}}
rust/method_syntax -.-> lab-99208{{"`Lifetime Annotation in Rust Traits`"}}
end