Fix rustc_ast_pretty print_qpath resulting in invalid macro input #78980
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Fix rustc_ast_pretty print_qpath resulting in invalid macro input related rust-lang#76874 (third case) ### Issue: The input for a procedural macro is incorrect, for the rust code: ```rust mod m { pub trait Tr { type Ts: super::Tu; } } trait Tu { fn dummy() { } } #[may_proc_macro] fn foo() { <T as m::Tr>::Ts::dummy(); } ``` the macro will get the input: ```rust fn foo() { <T as m::Tr>::dummy(); } ``` Thus `Ts` has disappeared. ### Fix: This is due to invalid pretty print of qpath. This PR fix it.
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Fix rustc_ast_pretty print_qpath resulting in invalid macro input related rust-lang#76874 (third case) ### Issue: The input for a procedural macro is incorrect, for the rust code: ```rust mod m { pub trait Tr { type Ts: super::Tu; } } trait Tu { fn dummy() { } } #[may_proc_macro] fn foo() { <T as m::Tr>::Ts::dummy(); } ``` the macro will get the input: ```rust fn foo() { <T as m::Tr>::dummy(); } ``` Thus `Ts` has disappeared. ### Fix: This is due to invalid pretty print of qpath. This PR fix it.
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Nov 14, 2020
Fix rustc_ast_pretty print_qpath resulting in invalid macro input related rust-lang#76874 (third case) ### Issue: The input for a procedural macro is incorrect, for the rust code: ```rust mod m { pub trait Tr { type Ts: super::Tu; } } trait Tu { fn dummy() { } } #[may_proc_macro] fn foo() { <T as m::Tr>::Ts::dummy(); } ``` the macro will get the input: ```rust fn foo() { <T as m::Tr>::dummy(); } ``` Thus `Ts` has disappeared. ### Fix: This is due to invalid pretty print of qpath. This PR fix it.
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Nov 15, 2020
Rollup of 15 pull requests Successful merges: - rust-lang#78352 (Do not call `unwrap` with `signatures` option enabled) - rust-lang#78590 (refactor: removing alloc::collections::vec_deque ignore-tidy-filelength) - rust-lang#78848 (Bump minimal supported LLVM version to 9) - rust-lang#78856 (Explicitly checking for or-pattern before test) - rust-lang#78948 (test: add `()=()=()=...` to weird-exprs.rs) - rust-lang#78962 (Add a test for r# identifiers) - rust-lang#78963 (Added some unit tests as requested) - rust-lang#78966 (Never inline C variadics, cold functions, functions with incompatible attributes ...) - rust-lang#78968 (Include llvm-as in llvm-tools-preview component) - rust-lang#78969 (Normalize function type during validation) - rust-lang#78980 (Fix rustc_ast_pretty print_qpath resulting in invalid macro input) - rust-lang#78986 (Avoid installing external LLVM dylibs) - rust-lang#78988 (Fix an intrinsic invocation on threaded wasm) - rust-lang#78993 (rustc_target: Fix dash vs underscore mismatches in option names) - rust-lang#79013 (Clean up outdated `use_once_payload` pretty printer comment) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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related #76874 (third case)
Issue:
The input for a procedural macro is incorrect, for the rust code:
the macro will get the input:
Thus
Tshas disappeared.Fix:
This is due to invalid pretty print of qpath. This PR fix it.