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Code Issues Releases Activity

Use a more coincise symbol to signal compilation errors in slides

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This commit is contained in:
LukeMathWalker
2025-07-07 13:33:25 +02:00
parent 14deb7ec4c
commit 93f198051e
2 changed files with 3 additions and 6 deletions
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6
src/idiomatic/leveraging-the-type-system/newtype-pattern.md
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@ -19,8 +19,7 @@ fn double(n: u64) -> u64 {
n * 2 n * 2
} }
// This doesn't compile ❌ double(UserId(1)); // 🛠️❌
double(UserId(1));
``` ```
The Rust compiler won't implicitly convert to (or from) the underlying type.\ The Rust compiler won't implicitly convert to (or from) the underlying type.\
@ -28,8 +27,7 @@ It won't let you use methods or operators defined on the underlying type either:
```rust,compile_fail ```rust,compile_fail
# pub struct UserId(u64); # pub struct UserId(u64);
// This doesn't compile ❌ assert_ne!(UserId(1), UserId(2)); // 🛠️❌
assert_ne!(UserId(1), UserId(2));
``` ```
<details> <details>

3
src/idiomatic/leveraging-the-type-system/newtype-pattern/semantic-confusion.md
View File

@ -35,8 +35,7 @@ pub fn login(username: &Username, password: &Password) -> Result<(), LoginError>
# let password = Password("password".into()); # let password = Password("password".into());
# let username = Username("username".into()); # let username = Username("username".into());
// Compiler error 🎉 login(password, username); // 🛠️❌
login(password, username);
``` ```
<details> <details>