Fix C-variadic function printing #58865

dlrobertson · 2019-03-02T01:08:29Z

There is no longer a need to append the string ", ..." to a functions
args as ... is parsed as an argument and will appear in the functions
arguments.

r? @alexreg
cc @alexcrichton
Fixes: #58853

alexreg

Looks sound. (What I had in mind). Waiting for a regression test.

dlrobertson · 2019-03-02T03:24:12Z

@alexreg added regression test

There is no longer a need to append the string `", ..."` to a functions args as `...` is parsed as an argument and will appear in the functions arguments.

alexreg · 2019-03-02T15:16:51Z

@bors r+ p=1

bors · 2019-03-02T15:16:51Z

📌 Commit 72f0ca5 has been approved by alexreg

@alexreg

Fix C-variadic function printing There is no longer a need to append the string `", ..."` to a functions args as `...` is parsed as an argument and will appear in the functions arguments. r? @alexreg cc @alexcrichton Fixes: rust-lang#58853

bors · 2019-03-03T01:30:17Z

⌛ Testing commit 72f0ca5 with merge 988f967fd8f122244f5463bb6e450eb56539232c...

bors · 2019-03-03T03:00:07Z

💔 Test failed - checks-travis

rust-highfive · 2019-03-03T03:00:08Z

The job x86_64-gnu-aux of your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

[01:27:16] test [pretty] pretty/empty-impl.rs ... ok
[01:27:16] test [pretty] pretty/example1.rs ... ok
[01:27:16] test [pretty] pretty/example2.rs ... ok
[01:27:16] test [pretty] pretty/empty-lines.rs ... ok
[01:27:16] ERROR 2019-03-03T02:59:23Z: compiletest::runtest: fatal error, panic: "pretty-printed source does not match expected source\nexpected:\n------------------------------------------\n// Check that `fn foo(x: i32, ...)` does not print as `fn foo(x: i32, ..., ...)`.\n// See issue #58853.\n\n// pp-exact\n#![feature(c_variadic)]\n\nextern \"C\" {\n    pub fn foo(x: i32, ...);\n}\n\npub unsafe extern \"C\" fn bar(_: i32, mut ap: ...) -> usize {\n    ap.arg::<usize>()\n}\n\nfn main() {}\n\n------------------------------------------\nactual:\n------------------------------------------\n// Check that `fn foo(x: i32, ...)` does not print as `fn foo(x: i32, ..., ...)`.\n// See issue #58853.\n\n// pp-exact\n#![feature(c_variadic)]\n\nextern \"C\" {\n    pub fn foo(x: i32, ...);\n}\n\npub unsafe extern \"C\" fn bar(_: i32, mut ap: ...) -> usize {\n    ap.arg::<usize>()\n}\n\nfn main() { }\n\n------------------------------------------\n\n"
[01:27:16] test [pretty] pretty/fn-return.rs ... ok
[01:27:16] test [pretty] pretty/fn-types.rs ... ok
[01:27:16] test [pretty] pretty/import-renames.rs ... ok
[01:27:16] test [pretty] pretty/for-comment.rs ... ok
---
[01:27:17] 
[01:27:17] error: pretty-printed source does not match expected source
[01:27:17] expected:
[01:27:17] ------------------------------------------
[01:27:17] // Check that `fn foo(x: i32, ...)` does not print as `fn foo(x: i32, ..., ...)`.
[01:27:17] // See issue #58853.
[01:27:17] 
[01:27:17] // pp-exact
[01:27:17] #![feature(c_variadic)]
[01:27:17] extern "C" {
[01:27:17]     pub fn foo(x: i32, ...);
[01:27:17] }
[01:27:17] 
[01:27:17] 
[01:27:17] pub unsafe extern "C" fn bar(_: i32, mut ap: ...) -> usize {
[01:27:17]     ap.arg::<usize>()
[01:27:17] }
[01:27:17] fn main() {}
[01:27:17] 
[01:27:17] ------------------------------------------
[01:27:17] actual:
[01:27:17] actual:
[01:27:17] ------------------------------------------
[01:27:17] // Check that `fn foo(x: i32, ...)` does not print as `fn foo(x: i32, ..., ...)`.
[01:27:17] // See issue #58853.
[01:27:17] 
[01:27:17] // pp-exact
[01:27:17] #![feature(c_variadic)]
[01:27:17] extern "C" {
[01:27:17]     pub fn foo(x: i32, ...);
[01:27:17] }
[01:27:17] 
[01:27:17] 
[01:27:17] pub unsafe extern "C" fn bar(_: i32, mut ap: ...) -> usize {
[01:27:17]     ap.arg::<usize>()
[01:27:17] }
[01:27:17] fn main() { }
[01:27:17] 
[01:27:17] ------------------------------------------
[01:27:17] 
[01:27:17] 
[01:27:17] 
[01:27:17] thread '[pretty] pretty/fn-variadic.rs' panicked at 'fatal error', src/tools/compiletest/src/runtest.rs:2040:9
[01:27:17] 
[01:27:17] 
[01:27:17] failures:
[01:27:17]     [pretty] pretty/fn-variadic.rs
[01:27:17]     [pretty] pretty/fn-variadic.rs
[01:27:17] 
[01:27:17] test result: FAILED. 52 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[01:27:17] 
[01:27:17] 
[01:27:17] 
[01:27:17] command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/compiletest" "--compile-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib" "--run-lib-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/lib/rustlib/x86_64-unknown-linux-gnu/lib" "--rustc-path" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage2/bin/rustc" "--src-base" "/checkout/src/test/pretty" "--build-base" "/checkout/obj/build/x86_64-unknown-linux-gnu/test/pretty" "--stage-id" "stage2-x86_64-unknown-linux-gnu" "--mode" "pretty" "--target" "x86_64-unknown-linux-gnu" "--host" "x86_64-unknown-linux-gnu" "--llvm-filecheck" "/checkout/obj/build/x86_64-unknown-linux-gnu/llvm/build/bin/FileCheck" "--host-rustcflags" "-Crpath -O -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--target-rustcflags" "-Crpath -O -Zunstable-options  -Lnative=/checkout/obj/build/x86_64-unknown-linux-gnu/native/rust-test-helpers" "--docck-python" "/usr/bin/python2.7" "--lldb-python" "/usr/bin/python2.7" "--llvm-version" "8.0.0\n" "--cc" "" "--cxx" "" "--cflags" "" "--llvm-components" "" "--llvm-cxxflags" "" "--adb-path" "adb" "--adb-test-dir" "/data/tmp/work" "--android-cross-path" "" "--color" "always"
[01:27:17] 
[01:27:17] 
[01:27:17] 
[01:27:17] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap test src/test/pretty src/test/run-pass/pretty src/test/run-fail/pretty src/test/run-pass-valgrind/pretty src/test/run-pass-fulldeps/pretty src/tools/cargo src/tools/cargotest
[01:27:17] Build completed unsuccessfully in 0:00:57
[01:27:17] Makefile:50: recipe for target 'check-aux' failed
[01:27:17] make: *** [check-aux] Error 1
The command "stamp sh -x -c "$RUN_SCRIPT"" exited with 2.
travis_time:start:0fe422bf
$ date && (curl -fs --head https://google.com | grep ^Date: | sed 's/Date: //g' || true)
Sun Mar  3 02:59:25 UTC 2019
---
travis_time:end:10585105:start=1551581966658032182,finish=1551581966690589918,duration=32557736
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:07fa2440
$ ln -s . checkout && for CORE in obj/cores/core.*; do EXE=$(echo $CORE | sed 's|obj/cores/core\.[0-9]*\.!checkout!\(.*\)|\1|;y|!|/|'); if [ -f "$EXE" ]; then printf travis_fold":start:crashlog\n\033[31;1m%s\033[0m\n" "$CORE"; gdb --batch -q -c "$CORE" "$EXE" -iex 'set auto-load off' -iex 'dir src/' -iex 'set sysroot .' -ex bt -ex q; echo travis_fold":"end:crashlog; fi; done || true
travis_fold:end:after_failure.4
travis_fold:start:after_failure.5
travis_time:start:329aeca0
travis_time:start:329aeca0
$ cat ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers || true
cat: ./obj/build/x86_64-unknown-linux-gnu/native/asan/build/lib/asan/clang_rt.asan-dynamic-i386.vers: No such file or directory
travis_fold:end:after_failure.5
travis_fold:start:after_failure.6
travis_time:start:0862b368
$ dmesg | grep -i kill

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN. (Feature Requests)

dlrobertson · 2019-03-03T03:08:12Z

src/test/pretty/fn-variadic.rs

+    ap.arg::<usize>()
+}
+
+fn main() { }


@alexreg looks like this has to be formatted as fn main() { }. I amended the last commit.

Oh really? Sorry, my bad. I'm so used to {} in other files, I thought it was actually standard.

alexreg · 2019-03-03T04:10:56Z

@bors r+ p=1

bors · 2019-03-03T04:10:57Z

📌 Commit 379cd29 has been approved by alexreg

Fix C-variadic function printing There is no longer a need to append the string `", ..."` to a functions args as `...` is parsed as an argument and will appear in the functions arguments. Fixes: rust-lang#58853

Rollup of 14 pull requests Successful merges: - #58730 (Have all methods of Filter and FilterMap use internal iteration) - #58780 (ManuallyDrop != MaybeUninit) - #58782 (Replace `s` with `self` in docs for str methods taking self.) - #58785 (allow specifying attributes for tool lints) - #58802 (Ensure `record_layout_for_printing()` is inlined.) - #58821 (Fixed a syntax error in the pin docs) - #58830 (tidy: deny(rust_2018_idioms)) - #58832 (Revert switching to GCP on AppVeyor) - #58833 (tools/rustbook: deny(rust_2018_idioms)) - #58835 (tools/remote-test-{client,server}: deny(rust_2018_idioms)) - #58838 (Fix typo in Vec#resize_with documentation) - #58842 (Forbid duplicating Cargo as a dependency) - #58852 (Update toolchain to build NetBSD release) - #58865 (Fix C-variadic function printing)

bors · 2019-03-03T11:42:18Z

⌛ Testing commit 379cd29 with merge f565cdd...

rust-highfive assigned alexreg Mar 2, 2019

rust-highfive added the S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. label Mar 2, 2019

alexreg suggested changes Mar 2, 2019

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alexreg added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Mar 2, 2019

dlrobertson force-pushed the fix-varargs branch from 405f411 to 29d96c6 Compare March 2, 2019 03:23

Fix C-variadic function printing

04d0a8c

There is no longer a need to append the string `", ..."` to a functions args as `...` is parsed as an argument and will appear in the functions arguments.

dlrobertson force-pushed the fix-varargs branch from 29d96c6 to 04d0a8c Compare March 2, 2019 15:12

bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Mar 2, 2019

Mark-Simulacrum mentioned this pull request Mar 2, 2019

Rollup of 14 pull requests #58878

Closed

Nit

379cd29

bors added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Mar 3, 2019

dlrobertson force-pushed the fix-varargs branch from 72f0ca5 to 379cd29 Compare March 3, 2019 03:07

dlrobertson commented Mar 3, 2019

View reviewed changes

bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Mar 3, 2019

kennytm mentioned this pull request Mar 3, 2019

Rollup of 14 pull requests #58866

Merged

bors merged commit 379cd29 into rust-lang:master Mar 3, 2019

dlrobertson deleted the fix-varargs branch March 3, 2019 22:19

dlrobertson mentioned this pull request Mar 4, 2019

Update tests after nightly fix rustwasm/wasm-bindgen#1309

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Fix C-variadic function printing #58865

Fix C-variadic function printing #58865

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Fix C-variadic function printing #58865

Fix C-variadic function printing #58865

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