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Update destructors.md #1471

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Update destructors.md #1471

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30b4d58
Update destructors.md
Feb 17, 2024
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Merge branch 'rust-lang:master' into patch-1
Tbkhi Mar 9, 2024
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repair broken
Tbkhi Mar 9, 2024
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27 changes: 27 additions & 0 deletions src/destructors.md
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Original file line number Diff line number Diff line change
Expand Up @@ -104,6 +104,26 @@ dropped last when evaluating the function. Each actual function parameter is
dropped after any bindings introduced in that parameter's pattern.

```rust
// entire function scope begins
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@jdahlstrom jdahlstrom Apr 7, 2024 •
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First letter should be capitalized unless it's an identifier, for correctness and consistency with other Rust documentation (including this file). Ditto for all the other comments.

fn fun(a:i8) -> i8
{ // function body block begins
let b:i8 = 0;
return b;
} // function body block ends. `b` is dropped here.
// entire function scope ends. `a` is dropped here.

// entire function begins.
fn fun1(a:i8) // `a` associated to entire function.
{ // function body block begins.
match &fun(2) { // match expression begins. temporary associated to match expression.
v => {}
} // match expression ends. temporary is dropped here.
{ // inner block begins.
let b:i8 = fun(3); // `b` associated to inner block.
} // inner block ends. `b` is dropped here.
}
// entire function ends. `a` is dropped here.

# struct PrintOnDrop(&'static str);
# impl Drop for PrintOnDrop {
# fn drop(&mut self) {
Expand Down Expand Up @@ -131,6 +151,13 @@ the block that contains the `let` statement. Local variables declared in a
are declared in.

```rust
{ // outer scope begins.
let a:i8; // `a` is associated to the outer scope.
{ // inner scope begins.
let b:i8; // `b` associated to the inner scope.
} // inner scope ends. `b` is dropped here.
} // outer scope ends. `a` is dropped here.

# struct PrintOnDrop(&'static str);
# impl Drop for PrintOnDrop {
# fn drop(&mut self) {
Expand Down