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clangfmt creates index out of bounds error #673

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matu3ba opened this issue Aug 29, 2021 · 2 comments
Closed

clangfmt creates index out of bounds error #673

matu3ba opened this issue Aug 29, 2021 · 2 comments
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A-language-server Area: Language server client C-bug Category: This is a bug

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@matu3ba
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matu3ba commented Aug 29, 2021 •
edited by pickfire
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Reproduction steps

I can not reproduce this reliably, so this looks like a spurious error, probably introduced by weird behavior from clangfmt (and clangd?). This looks incredibly cursed, but may help figuring out some edge cases of ropey so I posted here.

  1. open file myexample.c
  2. run :format to execute clangfmt
  3. index out of bounds error from ropey with the following shell output:
[user@pc freetypeexample]$ hx myexample.c
thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Byte index out of bounds: byte index 1418, Rope/RopeSlice byte length 1416', $HOME/.cargo/registry/src/github.com-1ecc6299db9ec823/ropey-1.3.1/src/rope.rs:637:41
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace

Environment

  • Platform: Linux
  • Helix version: v0.3.0-236-g815ee9e
~/.cache/helix/helix.log 
2021-08-06T13:27:17.676 helix_lsp::transport [ERROR] err <- [ERROR project_model::workspace] cyclic deps: ion_shell(CrateId(208)) -> builtins_proc(CrateId(48))

2021-08-06T13:27:18.394 helix_lsp::transport [ERROR] err <- [ERROR project_model::workspace] cyclic deps: ion_shell(CrateId(208)) -> builtins_proc(CrateId(48))

2021-08-06T13:39:52.295 helix_lsp::transport [ERROR] err <- [ERROR project_model::workspace] cyclic deps: ion_shell(CrateId(208)) -> builtins_proc(CrateId(48))

2021-08-06T13:39:53.025 helix_lsp::transport [ERROR] err <- [ERROR project_model::workspace] cyclic deps: ion_shell(CrateId(208)) -> builtins_proc(CrateId(48))

2021-08-29T17:36:53.097 helix_lsp::transport [ERROR] err <- I[17:36:53.097] clangd version 12.0.1

2021-08-29T17:36:53.098 helix_lsp::transport [ERROR] err <- I[17:36:53.097] PID: 645648

2021-08-29T17:36:53.098 helix_lsp::transport [ERROR] err <- I[17:36:53.097] Working directory: $HOME/dev/git/c/freetypeexample

2021-08-29T17:36:53.098 helix_lsp::transport [ERROR] err <- I[17:36:53.097] argv[0]: clangd

2021-08-29T17:36:53.098 helix_lsp::transport [ERROR] err <- I[17:36:53.097] Starting LSP over stdin/stdout

2021-08-29T17:36:53.098 helix_lsp::transport [ERROR] err <- I[17:36:53.097] <-- initialize(0)

2021-08-29T17:36:53.098 helix_lsp::transport [ERROR] err <- I[17:36:53.097] --> reply:initialize(0) 0 ms

2021-08-29T17:36:53.098 helix_lsp::transport [ERROR] err <- I[17:36:53.098] <-- initialized

2021-08-29T17:36:53.098 helix_lsp::transport [ERROR] err <- I[17:36:53.098] <-- textDocument/didOpen

2021-08-29T17:36:53.098 helix_lsp::transport [ERROR] err <- I[17:36:53.098] Loaded compilation database from $HOME/dev/git/c/freetypeexample/compile_commands.json

2021-08-29T17:36:53.098 helix_lsp::transport [ERROR] err <- I[17:36:53.098] ASTWorker building file $HOME/dev/git/c/freetypeexample/myexample.c version 0 with command inferred from $HOME/dev/git/c/freetype_experiments/myexample.c

2021-08-29T17:36:53.098 helix_lsp::transport [ERROR] err <- [$HOME/dev/git/c/freetype_experiments]

2021-08-29T17:36:53.098 helix_lsp::transport [ERROR] err <- /usr/bin/cc -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -lfreetype -lm $HOME/dev/git/c/freetypeexample/myexample.c -fsyntax-only -resource-dir=/usr/lib/clang/12.0.1

2021-08-29T17:36:53.164 helix_lsp::transport [ERROR] err <- I[17:36:53.163] --> textDocument/publishDiagnostics

2021-08-29T17:36:57.690 helix_lsp::transport [ERROR] err <- I[17:36:57.690] <-- textDocument/references(1)

2021-08-29T17:36:57.692 helix_lsp::transport [ERROR] err <- I[17:36:57.692] --> reply:textDocument/references(1) 1 ms

2021-08-29T17:37:17.600 helix_lsp::transport [ERROR] err <- I[17:37:17.600] <-- textDocument/formatting(2)

2021-08-29T17:37:17.603 helix_lsp::transport [ERROR] err <- I[17:37:17.603] --> reply:textDocument/formatting(2) 3 ms

2021-08-29T17:37:17.607 helix_lsp::transport [ERROR] err <- I[17:37:17.607] <-- textDocument/didChange

2021-08-29T17:37:54.815 helix_lsp::transport [ERROR] err <- I[17:37:54.815] clangd version 12.0.1

2021-08-29T17:37:54.815 helix_lsp::transport [ERROR] err <- I[17:37:54.815] PID: 645678

2021-08-29T17:37:54.815 helix_lsp::transport [ERROR] err <- I[17:37:54.815] Working directory: $HOME/dev/git/c/freetypeexample

2021-08-29T17:37:54.815 helix_lsp::transport [ERROR] err <- I[17:37:54.815] argv[0]: clangd

2021-08-29T17:37:54.815 helix_lsp::transport [ERROR] err <- I[17:37:54.815] Starting LSP over stdin/stdout

2021-08-29T17:37:54.815 helix_lsp::transport [ERROR] err <- I[17:37:54.815] <-- initialize(0)

2021-08-29T17:37:54.816 helix_lsp::transport [ERROR] err <- I[17:37:54.816] --> reply:initialize(0) 0 ms

2021-08-29T17:37:54.816 helix_lsp::transport [ERROR] err <- I[17:37:54.816] <-- initialized

2021-08-29T17:37:54.816 helix_lsp::transport [ERROR] err <- I[17:37:54.816] <-- textDocument/didOpen

2021-08-29T17:37:54.817 helix_lsp::transport [ERROR] err <- I[17:37:54.816] Loaded compilation database from $HOME/dev/git/c/freetypeexample/compile_commands.json

2021-08-29T17:37:54.817 helix_lsp::transport [ERROR] err <- I[17:37:54.817] ASTWorker building file $HOME/dev/git/c/freetypeexample/myexample.c version 0 with command inferred from $HOME/dev/git/c/freetype_experiments/myexample.c

2021-08-29T17:37:54.817 helix_lsp::transport [ERROR] err <- [$HOME/dev/git/c/freetype_experiments]

2021-08-29T17:37:54.817 helix_lsp::transport [ERROR] err <- /usr/bin/cc -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -lfreetype -lm $HOME/dev/git/c/freetypeexample/myexample.c -fsyntax-only -resource-dir=/usr/lib/clang/12.0.1

2021-08-29T17:37:54.877 helix_lsp::transport [ERROR] err <- I[17:37:54.877] --> textDocument/publishDiagnostics

2021-08-29T17:37:57.144 helix_lsp::transport [ERROR] err <- I[17:37:57.144] <-- textDocument/formatting(1)

2021-08-29T17:37:57.152 helix_lsp::transport [ERROR] err <- I[17:37:57.152] --> reply:textDocument/formatting(1) 8 ms

2021-08-29T17:37:57.158 helix_lsp::transport [ERROR] err <- I[17:37:57.158] <-- textDocument/didChange

2021-08-29T17:37:57.210 helix_lsp::transport [ERROR] err <- I[17:37:57.210] ASTWorker building file $HOME/dev/git/c/freetypeexample/myexample.c version 1 with command inferred from $HOME/dev/git/c/freetype_experiments/myexample.c

2021-08-29T17:37:57.210 helix_lsp::transport [ERROR] err <- [$HOME/dev/git/c/freetype_experiments]

2021-08-29T17:37:57.210 helix_lsp::transport [ERROR] err <- /usr/bin/cc -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -lfreetype -lm $HOME/dev/git/c/freetypeexample/myexample.c -fsyntax-only -resource-dir=/usr/lib/clang/12.0.1

2021-08-29T17:37:57.267 helix_lsp::transport [ERROR] err <- I[17:37:57.267] --> textDocument/publishDiagnostics

2021-08-29T17:37:59.725 helix_lsp::transport [ERROR] err <- I[17:37:59.725] <-- textDocument/didChange

2021-08-29T17:37:59.776 helix_lsp::transport [ERROR] err <- I[17:37:59.776] ASTWorker building file $HOME/dev/git/c/freetypeexample/myexample.c version 2 with command inferred from $HOME/dev/git/c/freetype_experiments/myexample.c

2021-08-29T17:37:59.776 helix_lsp::transport [ERROR] err <- [$HOME/dev/git/c/freetype_experiments]

2021-08-29T17:37:59.776 helix_lsp::transport [ERROR] err <- /usr/bin/cc -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -lfreetype -lm $HOME/dev/git/c/freetypeexample/myexample.c -fsyntax-only -resource-dir=/usr/lib/clang/12.0.1

2021-08-29T17:37:59.826 helix_lsp::transport [ERROR] err <- I[17:37:59.826] --> textDocument/publishDiagnostics

2021-08-29T17:38:03.856 helix_lsp::transport [ERROR] err <- I[17:38:03.856] <-- textDocument/formatting(2)

2021-08-29T17:38:03.861 helix_lsp::transport [ERROR] err <- I[17:38:03.861] --> reply:textDocument/formatting(2) 5 ms

2021-08-29T17:38:03.865 helix_lsp::transport [ERROR] err <- I[17:38:03.865] <-- textDocument/didChange

2021-08-29T17:38:03.916 helix_lsp::transport [ERROR] err <- I[17:38:03.916] ASTWorker building file $HOME/dev/git/c/freetypeexample/myexample.c version 3 with command inferred from $HOME/dev/git/c/freetype_experiments/myexample.c

2021-08-29T17:38:03.916 helix_lsp::transport [ERROR] err <- [$HOME/dev/git/c/freetype_experiments]

2021-08-29T17:38:03.916 helix_lsp::transport [ERROR] err <- /usr/bin/cc -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -lfreetype -lm $HOME/dev/git/c/freetypeexample/myexample.c -fsyntax-only -resource-dir=/usr/lib/clang/12.0.1

2021-08-29T17:38:03.976 helix_lsp::transport [ERROR] err <- I[17:38:03.976] --> textDocument/publishDiagnostics

2021-08-29T17:38:32.485 helix_lsp::transport [ERROR] err <- I[17:38:32.485] <-- textDocument/didSave

2021-08-29T17:38:32.485 helix_lsp::transport [ERROR] err <- I[17:38:32.485] <-- shutdown(3)

2021-08-29T17:38:32.485 helix_lsp::transport [ERROR] err <- I[17:38:32.485] --> reply:shutdown(3) 0 ms

2021-08-29T17:38:32.486 helix_lsp::transport [ERROR] err <- I[17:38:32.486] <-- exit

2021-08-29T17:38:32.486 helix_lsp::transport [ERROR] err <- I[17:38:32.486] LSP finished, exiting with status 0

2021-08-29T17:38:32.486 helix_lsp::transport [ERROR] err <- I[17:38:32.486] ASTWorker building file $HOME/dev/git/c/freetypeexample/myexample.c version 3 with command inferred from $HOME/dev/git/c/freetype_experiments/myexample.c

2021-08-29T17:38:32.487 helix_lsp::transport [ERROR] err <- [$HOME/dev/git/c/freetype_experiments]

2021-08-29T17:38:32.487 helix_lsp::transport [ERROR] err <- /usr/bin/cc -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -lfreetype -lm $HOME/dev/git/c/freetypeexample/myexample.c -fsyntax-only -resource-dir=/usr/lib/clang/12.0.1

2021-08-29T17:43:25.554 helix_lsp::transport [ERROR] err <- I[17:43:25.554] clangd version 12.0.1

2021-08-29T17:43:25.554 helix_lsp::transport [ERROR] err <- I[17:43:25.554] PID: 645948

2021-08-29T17:43:25.554 helix_lsp::transport [ERROR] err <- I[17:43:25.554] Working directory: $HOME/dev/git/c/freetypeexample

2021-08-29T17:43:25.554 helix_lsp::transport [ERROR] err <- I[17:43:25.554] argv[0]: clangd

2021-08-29T17:43:25.554 helix_lsp::transport [ERROR] err <- I[17:43:25.554] Starting LSP over stdin/stdout

2021-08-29T17:43:25.554 helix_lsp::transport [ERROR] err <- I[17:43:25.554] <-- initialize(0)

2021-08-29T17:43:25.555 helix_lsp::transport [ERROR] err <- I[17:43:25.555] --> reply:initialize(0) 0 ms

2021-08-29T17:43:25.555 helix_lsp::transport [ERROR] err <- I[17:43:25.555] <-- initialized

2021-08-29T17:43:25.555 helix_lsp::transport [ERROR] err <- I[17:43:25.555] <-- textDocument/didOpen

2021-08-29T17:43:25.556 helix_lsp::transport [ERROR] err <- I[17:43:25.556] Loaded compilation database from $HOME/dev/git/c/freetypeexample/compile_commands.json

2021-08-29T17:43:25.557 helix_lsp::transport [ERROR] err <- I[17:43:25.556] ASTWorker building file $HOME/dev/git/c/freetypeexample/myexample.c version 0 with command inferred from $HOME/dev/git/c/freetype_experiments/myexample.c

2021-08-29T17:43:25.557 helix_lsp::transport [ERROR] err <- [$HOME/dev/git/c/freetype_experiments]

2021-08-29T17:43:25.557 helix_lsp::transport [ERROR] err <- /usr/bin/cc -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -lfreetype -lm $HOME/dev/git/c/freetypeexample/myexample.c -fsyntax-only -resource-dir=/usr/lib/clang/12.0.1

2021-08-29T17:43:25.614 helix_lsp::transport [ERROR] err <- I[17:43:25.614] --> textDocument/publishDiagnostics

2021-08-29T17:43:28.247 helix_lsp::transport [ERROR] err <- I[17:43:28.247] <-- textDocument/formatting(1)

2021-08-29T17:43:28.253 helix_lsp::transport [ERROR] err <- I[17:43:28.252] --> reply:textDocument/formatting(1) 5 ms

2021-08-29T17:43:28.253 helix_lsp::transport [ERROR] err <- I[17:43:28.253] <-- textDocument/didChange

2021-08-29T17:43:28.304 helix_lsp::transport [ERROR] err <- I[17:43:28.303] ASTWorker building file $HOME/dev/git/c/freetypeexample/myexample.c version 1 with command inferred from $HOME/dev/git/c/freetype_experiments/myexample.c

2021-08-29T17:43:28.304 helix_lsp::transport [ERROR] err <- [$HOME/dev/git/c/freetype_experiments]

2021-08-29T17:43:28.304 helix_lsp::transport [ERROR] err <- /usr/bin/cc -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -lfreetype -lm $HOME/dev/git/c/freetypeexample/myexample.c -fsyntax-only -resource-dir=/usr/lib/clang/12.0.1

2021-08-29T17:43:30.795 helix_lsp::transport [ERROR] err <- I[17:43:30.795] <-- shutdown(2)

2021-08-29T17:43:30.795 helix_lsp::transport [ERROR] err <- I[17:43:30.795] --> reply:shutdown(2) 0 ms

2021-08-29T17:43:30.795 helix_lsp::transport [ERROR] err <- I[17:43:30.795] <-- exit

2021-08-29T17:43:30.795 helix_lsp::transport [ERROR] err <- I[17:43:30.795] LSP finished, exiting with status 0

2021-08-29T17:43:32.073 helix_lsp::transport [ERROR] err <- I[17:43:32.073] clangd version 12.0.1

2021-08-29T17:43:32.073 helix_lsp::transport [ERROR] err <- I[17:43:32.073] PID: 645969

2021-08-29T17:43:32.073 helix_lsp::transport [ERROR] err <- I[17:43:32.073] Working directory: $HOME/dev/git/c/freetypeexample

2021-08-29T17:43:32.073 helix_lsp::transport [ERROR] err <- I[17:43:32.073] argv[0]: clangd

2021-08-29T17:43:32.073 helix_lsp::transport [ERROR] err <- I[17:43:32.073] Starting LSP over stdin/stdout

2021-08-29T17:43:32.073 helix_lsp::transport [ERROR] err <- I[17:43:32.073] <-- initialize(0)

2021-08-29T17:43:32.074 helix_lsp::transport [ERROR] err <- I[17:43:32.074] --> reply:initialize(0) 0 ms

2021-08-29T17:43:32.074 helix_lsp::transport [ERROR] err <- I[17:43:32.074] <-- initialized

2021-08-29T17:43:32.074 helix_lsp::transport [ERROR] err <- I[17:43:32.074] <-- textDocument/didOpen

2021-08-29T17:43:32.074 helix_lsp::transport [ERROR] err <- I[17:43:32.074] Loaded compilation database from $HOME/dev/git/c/freetypeexample/compile_commands.json

2021-08-29T17:43:32.075 helix_lsp::transport [ERROR] err <- I[17:43:32.075] ASTWorker building file $HOME/dev/git/c/freetypeexample/myexample.c version 0 with command inferred from $HOME/dev/git/c/freetype_experiments/myexample.c

2021-08-29T17:43:32.075 helix_lsp::transport [ERROR] err <- [$HOME/dev/git/c/freetype_experiments]

2021-08-29T17:43:32.075 helix_lsp::transport [ERROR] err <- /usr/bin/cc -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -lfreetype -lm $HOME/dev/git/c/freetypeexample/myexample.c -fsyntax-only -resource-dir=/usr/lib/clang/12.0.1

2021-08-29T17:43:32.128 helix_lsp::transport [ERROR] err <- I[17:43:32.127] --> textDocument/publishDiagnostics

2021-08-29T17:43:36.030 helix_lsp::transport [ERROR] err <- I[17:43:36.030] <-- textDocument/formatting(1)

2021-08-29T17:43:36.036 helix_lsp::transport [ERROR] err <- I[17:43:36.036] --> reply:textDocument/formatting(1) 6 ms

2021-08-29T17:43:36.036 helix_lsp::transport [ERROR] err <- I[17:43:36.036] <-- textDocument/didChange

2021-08-29T17:43:36.087 helix_lsp::transport [ERROR] err <- I[17:43:36.087] ASTWorker building file $HOME/dev/git/c/freetypeexample/myexample.c version 1 with command inferred from $HOME/dev/git/c/freetype_experiments/myexample.c

2021-08-29T17:43:36.087 helix_lsp::transport [ERROR] err <- [$HOME/dev/git/c/freetype_experiments]

2021-08-29T17:43:36.087 helix_lsp::transport [ERROR] err <- /usr/bin/cc -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -lfreetype -lm $HOME/dev/git/c/freetypeexample/myexample.c -fsyntax-only -resource-dir=/usr/lib/clang/12.0.1

2021-08-29T17:43:39.035 helix_lsp::transport [ERROR] err <- I[17:43:39.035] <-- shutdown(2)

2021-08-29T17:43:39.035 helix_lsp::transport [ERROR] err <- I[17:43:39.035] --> reply:shutdown(2) 0 ms

2021-08-29T17:43:39.035 helix_lsp::transport [ERROR] err <- I[17:43:39.035] <-- exit

2021-08-29T17:43:39.035 helix_lsp::transport [ERROR] err <- I[17:43:39.035] LSP finished, exiting with status 0

2021-08-29T17:43:40.679 helix_lsp::transport [ERROR] err <- I[17:43:40.679] clangd version 12.0.1

2021-08-29T17:43:40.679 helix_lsp::transport [ERROR] err <- I[17:43:40.679] PID: 645992

2021-08-29T17:43:40.679 helix_lsp::transport [ERROR] err <- I[17:43:40.679] Working directory: $HOME/dev/git/c/freetypeexample

2021-08-29T17:43:40.679 helix_lsp::transport [ERROR] err <- I[17:43:40.679] argv[0]: clangd

2021-08-29T17:43:40.679 helix_lsp::transport [ERROR] err <- I[17:43:40.679] Starting LSP over stdin/stdout

2021-08-29T17:43:40.679 helix_lsp::transport [ERROR] err <- I[17:43:40.679] <-- initialize(0)

2021-08-29T17:43:40.680 helix_lsp::transport [ERROR] err <- I[17:43:40.680] --> reply:initialize(0) 0 ms

2021-08-29T17:43:40.680 helix_lsp::transport [ERROR] err <- I[17:43:40.680] <-- initialized

2021-08-29T17:43:40.680 helix_lsp::transport [ERROR] err <- I[17:43:40.680] <-- textDocument/didOpen

2021-08-29T17:43:40.680 helix_lsp::transport [ERROR] err <- I[17:43:40.680] Loaded compilation database from $HOME/dev/git/c/freetypeexample/compile_commands.json

2021-08-29T17:43:40.681 helix_lsp::transport [ERROR] err <- I[17:43:40.681] ASTWorker building file $HOME/dev/git/c/freetypeexample/myexample.c version 0 with command inferred from $HOME/dev/git/c/freetype_experiments/myexample.c

2021-08-29T17:43:40.681 helix_lsp::transport [ERROR] err <- [$HOME/dev/git/c/freetype_experiments]

2021-08-29T17:43:40.681 helix_lsp::transport [ERROR] err <- /usr/bin/cc -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -lfreetype -lm $HOME/dev/git/c/freetypeexample/myexample.c -fsyntax-only -resource-dir=/usr/lib/clang/12.0.1

2021-08-29T17:43:40.735 helix_lsp::transport [ERROR] err <- I[17:43:40.735] --> textDocument/publishDiagnostics

2021-08-29T17:43:43.590 helix_lsp::transport [ERROR] err <- I[17:43:43.590] <-- textDocument/formatting(1)

2021-08-29T17:43:43.595 helix_lsp::transport [ERROR] err <- I[17:43:43.595] --> reply:textDocument/formatting(1) 5 ms

2021-08-29T17:43:43.595 helix_lsp::transport [ERROR] err <- I[17:43:43.595] <-- textDocument/didChange

2021-08-29T17:43:43.646 helix_lsp::transport [ERROR] err <- I[17:43:43.646] ASTWorker building file $HOME/dev/git/c/freetypeexample/myexample.c version 1 with command inferred from $HOME/dev/git/c/freetype_experiments/myexample.c

2021-08-29T17:43:43.646 helix_lsp::transport [ERROR] err <- [$HOME/dev/git/c/freetype_experiments]

2021-08-29T17:43:43.646 helix_lsp::transport [ERROR] err <- /usr/bin/cc -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -lfreetype -lm $HOME/dev/git/c/freetypeexample/myexample.c -fsyntax-only -resource-dir=/usr/lib/clang/12.0.1

2021-08-29T17:43:45.163 helix_lsp::transport [ERROR] err <- I[17:43:45.163] <-- shutdown(2)

2021-08-29T17:43:45.163 helix_lsp::transport [ERROR] err <- I[17:43:45.163] --> reply:shutdown(2) 0 ms

2021-08-29T17:43:45.164 helix_lsp::transport [ERROR] err <- I[17:43:45.163] <-- exit

2021-08-29T17:43:45.164 helix_lsp::transport [ERROR] err <- I[17:43:45.164] LSP finished, exiting with status 0
myexample.c 
// font: /usr/share/fonts/TTF/DejaVuSans.ttf
// text: "testtext"
// compile with cc `pkg-config --cflags --libs freetype2` -lm myexample.c
#include <assert.h>
#include <ft2build.h>
#include <stdio.h>
#include FT_FREETYPE_H

int main() {
  FT_Library library;
  FT_Face face;
  const char *filepath = "/usr/share/fonts/truetype/arial.tff";

  // neovim how to align code
  int error = 0; // 0 is success
  error = FT_Init_FreeType(&library);
  if (error != FT_Err_Ok) {
    printf("could not load library\n");
    printf(-1);
  }
  assert(library != NULL);

  error = FT_New_Face(library, filepath, 0, &face);
  // to know how many faces a given font contains:
  // 1. set face_index = -1
  // 2. prinft("count of embedded faces in font file: %d\n", face->num_faces);
  // if file was loaded into memory,
  // error = FT_New_Memory_Face(library, buffer, size, 0, &face);

  if (error == FT_Err_Unknown_File_Format) {
    printf("unknown file format\n");
    exit(-2);
  } else if (error != FT_Err_Ok) {
    printf("could not load face\n");
    exit(-3);
  }
  assert(face != NULL);
  // face->num_glyphs
  // complete list of available fields: FT_FaceRec

  // 2. char_width,char_height in 1/64th of points, horizontal and vertical
  // device resolution
  error = FT_Set_Char_Size(face, 0, 16 * 64, 300, 300);
  if (error != FT_Err_Ok) {
    printf("invalid character size\n");
    exit(-4);
  }
  // what more???
}
compile_command.json 
[
{
  "directory": "/home/misterspoon/dev/git/c/freetype_experiments",
  "command": "cc -I/usr/include/freetype2 -I/usr/include/libpng16 -I/usr/include/harfbuzz -I/usr/include/glib-2.0 -I/usr/lib/glib-2.0/include -lfreetype -lm myexample.c",
  "file": "/home/misterspoon/dev/git/c/freetype_experiments/myexample.c"
}
]

neovim gives up completely editing with ASAN resulting in stuff like

=================================================================
==620094==ERROR: AddressSanitizer: SEGV on unknown address 0xfffffffffffffff8 (pc 0x55947f8cddba bp 0x7fe668c28e80 sp 0x7ffebeb36f40 T0)
==620094==The signal is caused by a READ memory access.
    #0 0x55947f8cddba  (<unknown module>)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (<unknown module>) 
==620094==ABORTING
@matu3ba matu3ba added the C-bug Category: This is a bug label Aug 29, 2021
@kirawi kirawi added the A-language-server Area: Language server client label Aug 29, 2021
@matoous
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matoous commented Dec 11, 2022 •
edited
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Very old issue but I believe this might have been related to: #4047. Either way I guess we could close this given it's for a year and a half old version? cc @the-mikedavis

@dead10ck
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Yeah let's close this to clean up. If it resurfaces, we can make a new issue or reopen this one.

@dead10ck dead10ck closed this as not planned Won't fix, can't repro, duplicate, stale Dec 11, 2022
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@dead10ck @matu3ba @matoous @kirawi