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0f82cfffda
When we recover from a pattern parse error, or a pattern uses `..`, we keep track of that and affect resolution error for missing bindings that could have been provided by that pattern. We differentiate between `..` and parse recovery. We silence resolution errors likely caused by the pattern parse error.
```
error[E0425]: cannot find value `title` in this scope
--> $DIR/struct-pattern-with-missing-fields-resolve-error.rs:19:30
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LL | println!("[{}]({})", title, url);
| ^^^^^ not found in this scope
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note: `Website` has a field `title` which could have been included in this pattern, but it wasn't
--> $DIR/struct-pattern-with-missing-fields-resolve-error.rs:17:12
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LL | / struct Website {
LL | | url: String,
LL | | title: Option<String> ,
| | ----- defined here
LL | | }
| |_-
...
LL | if let Website { url, .. } = website {
| ^^^^^^^^^^^^^^^^^^^ this pattern doesn't include `title`, which is available in `Website`
```
Fix #74863.
23 lines
709 B
Rust
23 lines
709 B
Rust
struct Website {
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url: String,
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title: Option<String> ,//~ NOTE defined here
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}
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fn main() {
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let website = Website {
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url: "http://www.example.com".into(),
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title: Some("Example Domain".into()),
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};
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if let Website { url, Some(title) } = website { //~ ERROR expected `,`
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//~^ NOTE while parsing the fields for this pattern
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println!("[{}]({})", title, url); // we hide the errors for `title` and `url`
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}
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if let Website { url, .. } = website { //~ NOTE `Website` has a field `title`
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//~^ NOTE this pattern
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println!("[{}]({})", title, url); //~ ERROR cannot find value `title` in this scope
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//~^ NOTE not found in this scope
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}
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}
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