Andrew V. Teylu cb66c85555 Preserve parentheses around Fn trait bounds in pretty printer ...

The AST pretty printer was dropping parentheses around `Fn` trait
bounds in `dyn`/`impl` types when additional `+` bounds were present.
For example:

    dyn (FnMut(&mut T) -> &mut dyn ResourceLimiter) + Send + Sync

was pretty-printed as:

    dyn FnMut(&mut T) -> &mut dyn ResourceLimiter + Send + Sync

Without parens, `+ Send + Sync` binds to the inner `dyn ResourceLimiter`
instead of the outer type, producing invalid Rust.

The parser already tracks parentheses via `PolyTraitRef.parens`, but
`print_poly_trait_ref` never checked this field. This adds `popen()`
and `pclose()` calls when `parens == Parens::Yes`.

Signed-off-by: Andrew V. Teylu <andrew.teylu@vector.com>

2026-03-06 10:38:47 +00:00

..

autodiff

Explicitly export core and std macros

2026-01-13 08:47:48 +01:00

auxiliary

Support attribute inheritance in delegation

2025-12-12 20:34:54 +03:00

postfix-match

Explicitly export core and std macros

2026-01-13 08:47:48 +01:00

asm.pp

Explicitly export core and std macros

2026-01-13 08:47:48 +01:00

asm.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

ast-stmt-expr-attr.rs

Use cfg(false) in UI tests

2025-04-03 21:41:58 +00:00

async.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

attr-derive.rs

Update tests to use new proc-macro header

2024-11-27 07:18:25 -08:00

attr-fn-inner.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

attr-literals.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

attr-tokens-raw-ident.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

auto-trait.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

blank-lines.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

block-comment-multiple-asterisks.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

block-comment-trailing-whitespace2.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

block-comment-trailing-whitespace.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

block-comment-wchar.pp

Re-bless tests/pretty

2024-02-22 16:04:05 +00:00

block-comment-wchar.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

block-disambig.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

cast-lt.pp

Explicitly export core and std macros

2026-01-13 08:47:48 +01:00

cast-lt.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

closure-reform-pretty.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

delegation-impl-reuse.pp

Explicitly export core and std macros

2026-01-13 08:47:48 +01:00

delegation-impl-reuse.rs

Support syntax for one-line trait reuse

2025-12-23 10:34:23 +03:00

delegation-inherit-attributes.pp

Auto merge of #151864 - aerooneqq:delegation-generics-propagation, r=petrochenkov

2026-03-03 02:39:40 +00:00

delegation-inherit-attributes.rs

Recursive delegation improvements

2025-12-25 14:49:01 +03:00

delegation-inline-attribute.pp

Fix attribute parser and kind names.

2026-02-25 08:46:47 +11:00

delegation-inline-attribute.rs

Recursive delegation improvements

2025-12-25 14:49:01 +03:00

delegation.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

delimited-token-groups.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

disamb-stmt-expr.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

do1.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

doc-comments.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

dollar-crate.pp

Explicitly export core and std macros

2026-01-13 08:47:48 +01:00

dollar-crate.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

empty-impl.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

empty-lines.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

enum-variant-vis.rs

Use cfg(false) in UI tests

2025-04-03 21:41:58 +00:00

example1.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

example2.pp

Re-bless tests/pretty

2024-02-22 16:04:05 +00:00

example2.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

expanded-and-path-remap-80832.pp

Explicitly export core and std macros

2026-01-13 08:47:48 +01:00

expanded-and-path-remap-80832.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

fn-return.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

fn-types.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

fn-variadic.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

for-comment.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

format-args-str-escape.pp

Explicitly export core and std macros

2026-01-13 08:47:48 +01:00

format-args-str-escape.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

gat-bounds.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

hir-delegation.pp

Auto merge of #151864 - aerooneqq:delegation-generics-propagation, r=petrochenkov

2026-03-03 02:39:40 +00:00

hir-delegation.rs

Add a HIR pretty printing test for delegation.

2025-04-10 14:09:37 +10:00

hir-fn-params.pp

Fix pretty print tests with #[prelude_import]

2026-02-12 17:43:58 +00:00

hir-fn-params.rs

Add a pretty printing test for fn params.

2025-03-14 06:29:24 +11:00

hir-fn-variadic.pp

Update uitests

2026-02-22 20:20:33 +01:00

hir-fn-variadic.rs

c_variadic: Add future-incompatibility warning for ... arguments without a pattern outside of extern blocks

2025-11-10 14:33:56 +01:00

hir-if-else.pp

Fix pretty print tests with #[prelude_import]

2026-02-12 17:43:58 +00:00

hir-if-else.rs

Add pretty printing tests for if/else.

2025-04-25 14:33:14 +10:00

hir-lifetimes.pp

Fix pretty print tests with #[prelude_import]

2026-02-12 17:43:58 +00:00

hir-lifetimes.rs

Add a HIR pretty-printing test focused on lifetimes.

2025-03-28 08:25:06 +11:00

hir-pretty-attr.pp

Fix pretty print tests with #[prelude_import]

2026-02-12 17:43:58 +00:00

hir-pretty-attr.rs

pretty print hir attributes

2025-02-24 14:31:19 +01:00

hir-pretty-loop.pp

Fix pretty print tests with #[prelude_import]

2026-02-12 17:43:58 +00:00

hir-pretty-loop.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

hir-struct-expr.pp

Fix pretty print tests with #[prelude_import]

2026-02-12 17:43:58 +00:00

hir-struct-expr.rs

Improve hir_pretty for struct expressions.

2025-03-30 11:21:51 +02:00

if-attr.rs

Use cfg(false) in UI tests

2025-04-03 21:41:58 +00:00

if-else.pp

Explicitly export core and std macros

2026-01-13 08:47:48 +01:00

if-else.rs

Add pretty printing tests for if/else.

2025-04-25 14:33:14 +10:00

import-renames.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

issue-4264.pp

Fix pretty print tests with #[prelude_import]

2026-02-12 17:43:58 +00:00

issue-4264.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

issue-12590-a.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

issue-12590-b.rs

Move /src/test to /tests

2023-01-11 09:32:08 +00:00

issue-12590-c.pp

Explicitly export core and std macros

2026-01-13 08:47:48 +01:00

issue-12590-c.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

issue-19077.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

issue-25031.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

issue-30731.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

issue-31073.pp

Re-bless tests/pretty

2024-02-22 16:04:05 +00:00

issue-31073.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

issue-68710-field-attr-proc-mac-lost.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

issue-73626.rs

Move /src/test to /tests

2023-01-11 09:32:08 +00:00

issue-74745.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

issue-85089.pp

Fix pretty print tests with #[prelude_import]

2026-02-12 17:43:58 +00:00

issue-85089.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

let.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

lifetime.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

macro_rules.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

macro.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

match-block-expr.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

match-naked-expr-medium.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

match-naked-expr.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

nested-item-vis-defaultness.rs

Use cfg(false) in UI tests

2025-04-03 21:41:58 +00:00

never-pattern.pp

Explicitly export core and std macros

2026-01-13 08:47:48 +01:00

never-pattern.rs

Add a pretty printing test involving a never pattern.

2025-04-24 19:19:51 +10:00

offset_of.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

paren-trait-bound.rs

Preserve parentheses around Fn trait bounds in pretty printer

2026-03-06 10:38:47 +00:00

path-type-bounds.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

pin-ergonomics-hir.pp

Update uitests

2026-02-22 20:20:33 +01:00

pin-ergonomics-hir.rs

Implement &pin patterns and ref pin bindings

2025-11-10 09:57:08 +08:00

pin-ergonomics.rs

Implement &pin patterns and ref pin bindings

2025-11-10 09:57:08 +08:00

postfix-yield.rs

Update tests.

2025-04-15 11:14:23 +02:00

qpath-associated-type-bound.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

raw-address-of.rs

stabilize raw_ref_op

2024-08-18 19:46:53 +02:00

raw-str-nonexpr.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

shebang-at-top.pp

Explicitly export core and std macros

2026-01-13 08:47:48 +01:00

shebang-at-top.rs

Put shebang at the top of pretty-print

2025-02-23 10:51:22 +01:00

stmt_expr_attributes.rs

fix pretty test

2025-03-21 09:35:31 +01:00

struct-pattern.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

struct-tuple.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

tag-blank-lines.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

tests-are-sorted.pp

Explicitly export core and std macros

2026-01-13 08:47:48 +01:00

tests-are-sorted.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

top-level-doc-comments.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

trait-inner-attr.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

trait-polarity.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

trait-safety.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

try-blocks.rs

Experimentally add *heterogeneous* try blocks

2025-12-09 20:18:43 -08:00

unary-op-disambig.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

use-tree.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

vec-comments.pp

Re-bless tests/pretty

2024-02-22 16:04:05 +00:00

vec-comments.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

where-clauses.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00

yeet-expr.rs

[AUTO_GENERATED] Migrate compiletest to use ui_test-style //@ directives

2024-02-22 16:04:04 +00:00