This demonstrates a crash in go-tree-sitter, which I suspect is due to an issue in upstream tree-sitter.
go mod tidy
go run main.go -path ./crashers
It should reliably crash. At least it does on my M1 macbook. You should see:
[......truncated.....]
goroutine 34 [finalizer wait]:
runtime.gopark(0x10?, 0x104bed7e0?, 0x0?, 0x0?, 0x104bf5e80?)
/opt/homebrew/Cellar/go/1.21.3/libexec/src/runtime/proc.go:398 +0xc8 fp=0x14000052580 sp=0x14000052560 pc=0x104b08f18
runtime.runfinq()
/opt/homebrew/Cellar/go/1.21.3/libexec/src/runtime/mfinal.go:193 +0x108 fp=0x140000527d0 sp=0x14000052580 pc=0x104ae9f58
runtime.goexit()
/opt/homebrew/Cellar/go/1.21.3/libexec/src/runtime/asm_arm64.s:1197 +0x4 fp=0x140000527d0 sp=0x140000527d0 pc=0x104b35e64
created by runtime.createfing in goroutine 1
/opt/homebrew/Cellar/go/1.21.3/libexec/src/runtime/mfinal.go:163 +0x80
r0 0x104d90680
r1 0x104dbb200
r2 0x170268000
r3 0x0
r4 0x10
r5 0x1
r6 0x2
r7 0x0
r8 0xffffffff
r9 0x100
r10 0xffffffff
r11 0x3e
r12 0x104dbb210
r13 0x104dbb218
r14 0x0
r15 0x170000000
r16 0x170268000
r17 0x1a41ef1e0
r18 0x0
r19 0x104d90680
r20 0x104dbb200
r21 0x4
r22 0x170000000
r23 0x0
r24 0x4c
r25 0x170268000
r26 0x0
r27 0x1ff442160
r28 0x170268000
r29 0x16b32a300
To see it not crash, open go.mod and un-comment the last line with comment of "does NOT crash":
// require github.com/smacker/go-tree-sitter v0.0.0-20230720070738-0d0a9f78d8f8 //crashes
// require github.com/smacker/go-tree-sitter v0.0.0-20221023091341-2009a4db91e4 //crashes... uses tree-sitter 0.20.7
require github.com/smacker/go-tree-sitter v0.0.0-20220829074436-0a7a807924f2 //does NOT crash... uses tree-sitter 0.20.0
Then re-run:
go mod tidy
go run main.go -path ./crashers
I don't yet know the root cause for why this fixes the issue, but running:
chmod +x ./updateTreeSitter.sh
./updateTreeSitter.sh
go run main.go -path ./crashers```
...results in no more crashes. In that script I am:
- vendoring all dependencies (most importantly is github.com/smacker/go-tree-sitter`cloning v0.20.8 from `github.com/tree-sitter`
- fixing up some paths, and copying all *.h and *.c files from that cloned repo to the vendor'd location in this repo: `./vendor/github.com/smacker/go-tree-sitter/`
- removing all temporary files
Then, re-running, there are no longer any crasehs: `go run main.go -path ./crashers`