07e7823c01
If a symbol name can only be imported from one place for a type, and as long as it was not glob-imported anywhere in the current crate, we can trim its printed path and print only the name. This has wide implications on error messages with types, for example, shortening `std::vec::Vec` to just `Vec`, as long as there is no other `Vec` importable anywhere. This adds a new '-Z trim-diagnostic-paths=false' option to control this feature. On the good path, with no diagnosis printed, we should try to avoid issuing this query, so we need to prevent trimmed_def_paths query on several cases. This change also relies on a previous commit that differentiates between `Debug` and `Display` on various rustc types, where the latter is trimmed and presented to the user and the former is not.
16 lines
371 B
Rust
16 lines
371 B
Rust
// Test range syntax - type errors.
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pub fn main() {
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// Mixed types.
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let _ = 0u32..10i32;
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//~^ ERROR mismatched types
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// Bool => does not implement iterator.
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for i in false..true {}
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//~^ ERROR `bool: Step` is not satisfied
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// Unsized type.
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let arr: &[_] = &[1, 2, 3];
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let range = *arr..;
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//~^ ERROR the size for values of type
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}
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