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cockroachdb / crlfmt

Formatter for CockroachDB's additions to the Go style guide.

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Panic: unreachable

Hades32 opened this issue · comments

commented

I get a panic when trying to format my code:

# h32 @ DESKTOP-J1Q9JRK in ~/mysvc on git:main o [10:37:15] C:1
$ go install github.com/cockroachdb/crlfmt@latest
go: downloading github.com/cockroachdb/crlfmt v0.0.0-20220610162206-024b567ce87b
go: downloading github.com/cockroachdb/gostdlib v1.13.0
go: downloading github.com/cockroachdb/ttycolor v0.0.0-20180709150743-a1d5aaeb377d
go: downloading golang.org/x/tools v0.0.0-20200923014426-f5e916c686e1

# h32 @ DESKTOP-J1Q9JRK in ~/mysvc on git:main o [10:38:08] C:130
$ crlfmt .
panic: unreachable

goroutine 1 [running]:
github.com/cockroachdb/gostdlib/go/printer.(*printer).expr1(0xc0003d5cf8, {0x71a318, 0xc0003c2180}, 0x7, 0x1)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:967 +0x1bfd
github.com/cockroachdb/gostdlib/go/printer.(*printer).possibleSelectorExpr(0xc0003d5cf8?, {0x71a318?, 0xc0003c2180?}, 0x40c8c9?, 0xc0003c1560?)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:975 +0x49
github.com/cockroachdb/gostdlib/go/printer.(*printer).expr1(0xc0003d5cf8, {0x719f28, 0xc0003c21c0}, 0x0, 0x1)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:883 +0x1445
github.com/cockroachdb/gostdlib/go/printer.(*printer).expr(...)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:1001
github.com/cockroachdb/gostdlib/go/printer.(*printer).printNode(0xc0003d5cf8, {0x670080?, 0xc0003c21c0?})
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/printer.go:1128 +0x331
github.com/cockroachdb/gostdlib/go/printer.(*Config).fprint(0xc0003d5ea8, {0x7181c8?, 0xc0003c6d50}, 0x40982d?, {0x670080, 0xc0003c21c0}, 0xc0003c6a50)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/printer.go:1293 +0x17c
github.com/cockroachdb/gostdlib/go/printer.(*printer).nodeSize(0xc0003d6620, {0x719118?, 0xc0003c21c0}, 0xf4240)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:1599 +0x134
github.com/cockroachdb/gostdlib/go/printer.(*printer).exprList(0xc0003d6620, 0xc0003d63b8?, {0xc0003c2300, 0x3, 0x66?}, 0x20?, 0x1, 0x12?, 0x0)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:212 +0x8c5
github.com/cockroachdb/gostdlib/go/printer.(*printer).expr1(0xc0003d6620, {0x719f28, 0xc0003c2340}, 0x0, 0x1)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:893 +0x17b1
github.com/cockroachdb/gostdlib/go/printer.(*printer).expr(...)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:1001
github.com/cockroachdb/gostdlib/go/printer.(*printer).printNode(0xc0003d6620, {0x670080?, 0xc0003c2340?})
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/printer.go:1128 +0x331
github.com/cockroachdb/gostdlib/go/printer.(*Config).fprint(0xc0003d67d0, {0x7181c8?, 0xc0003c6d20}, 0x40982d?, {0x670080, 0xc0003c2340}, 0xc0003c6a50)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/printer.go:1293 +0x17c
github.com/cockroachdb/gostdlib/go/printer.(*printer).nodeSize(0xc0003d73c0, {0x719118?, 0xc0003c2340}, 0xf4240)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:1599 +0x134
github.com/cockroachdb/gostdlib/go/printer.(*printer).exprList(0xc0003d73c0, 0xc0003d6da8?, {0xc0003aa820, 0x1, 0x4cfe83?}, 0xc00036ec60?, 0x0, 0x1?, 0x0)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:212 +0x8c5
github.com/cockroachdb/gostdlib/go/printer.(*printer).stmt(0xc0003d73c0, {0x719da8, 0xc0003c2380}, 0x0)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:1219 +0x137b
github.com/cockroachdb/gostdlib/go/printer.(*printer).stmtList(0xc0003d73c0, {0xc0003c24c0, 0x4, 0x13?}, 0x1, 0x1)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:1027 +0x2bf
github.com/cockroachdb/gostdlib/go/printer.(*printer).block(0xc0003d73c0, 0xc0003a9b60, 0x1?)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:1050 +0xc5
github.com/cockroachdb/gostdlib/go/printer.(*printer).funcBody(0xc0003d73c0, 0x8e, 0xb, 0xc0003a9b60)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:1687 +0x268
github.com/cockroachdb/gostdlib/go/printer.(*printer).funcDecl(0x52bbcb?, 0xc0003a9b90)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:1711 +0x17d
github.com/cockroachdb/gostdlib/go/printer.(*printer).decl(0xc0003d73c0?, {0x71a138?, 0xc0003a9b90?})
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:1721 +0x51
github.com/cockroachdb/gostdlib/go/printer.(*printer).declList(0xc0003d73c0, {0xc0003ae400?, 0x9, 0x0?})
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:1764 +0x449
github.com/cockroachdb/gostdlib/go/printer.(*printer).file(0xc0003d73c0?, 0xc00033dc00)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/nodes.go:1772 +0xf3
github.com/cockroachdb/gostdlib/go/printer.(*printer).printNode(0xc0003d73c0, {0x66c480?, 0xc00033dc00?})
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/printer.go:1152 +0x477
github.com/cockroachdb/gostdlib/go/printer.(*Config).fprint(0xc0003d75d0, {0x7181c8?, 0xc0003c6a20}, 0x0?, {0x66c480, 0xc00033dc00}, 0xc0003c6a50)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/printer.go:1293 +0x17c
github.com/cockroachdb/gostdlib/go/printer.(*Config).Fprint(...)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/go/printer/printer.go:1351
github.com/cockroachdb/gostdlib/x/tools/internal/imports.formatFile(0xc0000cd980?, 0xc0000cd980?, {0xc0003be000, 0x95f, 0x960}, 0x0, 0xc0003d7718)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/x/tools/internal/imports/imports.go:177 +0x17c
github.com/cockroachdb/gostdlib/x/tools/internal/imports.Process({0xc0000cd980, 0x12}, {0xc0003be000?, 0x10000000000000b?, 0x15e?}, 0x5f3?)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/x/tools/internal/imports/imports.go:63 +0x113
github.com/cockroachdb/gostdlib/x/tools/imports.Process({0xc0000cd980, 0x12}, {0xc0003be000, 0x95f, 0x960}, 0x64?)
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/gostdlib@v1.13.0/x/tools/imports/forward.go:55 +0x185
main.checkBuf({0xc0000cd980, 0x12}, {0xc0003be000?, 0xc0000021a0?, 0x43c325?})
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/crlfmt@v0.0.0-20220610162206-024b567ce87b/main.go:172 +0x1df
main.checkPath({0xc0000cd980, 0x12})
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/crlfmt@v0.0.0-20220610162206-024b567ce87b/main.go:125 +0x79
main.run.func1({0xc0000cd980, 0x12}, {0x71afe8?, 0xc0003b8820?}, {0x0?, 0x0?})
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/crlfmt@v0.0.0-20220610162206-024b567ce87b/main.go:111 +0x10a
path/filepath.walk({0xc0000cd980, 0x12}, {0x71afe8, 0xc0003b8820}, 0xc000391ef8)
        /home/h32/.gvm/gos/go1.18.2/src/path/filepath/path.go:418 +0x123
path/filepath.walk({0xc0003ac9c7, 0x9}, {0x71afe8, 0xc0003b8750}, 0xc0003d7ef8)
        /home/h32/.gvm/gos/go1.18.2/src/path/filepath/path.go:442 +0x285
path/filepath.walk({0x6a21a0, 0x1}, {0x71afe8, 0xc0000a3c70}, 0xc0003d7ef8)
        /home/h32/.gvm/gos/go1.18.2/src/path/filepath/path.go:442 +0x285
path/filepath.Walk({0x6a21a0, 0x1}, 0xc000093ef8)
        /home/h32/.gvm/gos/go1.18.2/src/path/filepath/path.go:505 +0x6c
main.run()
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/crlfmt@v0.0.0-20220610162206-024b567ce87b/main.go:98 +0x17f
main.main()
        /home/h32/.gvm/pkgsets/go1.18.2/global/pkg/mod/github.com/cockroachdb/crlfmt@v0.0.0-20220610162206-024b567ce87b/main.go:56 +0x19
commented

crlfmt depends on a copy of some components from the go stdlib (in the repository cockroachdb/gostdlib) which are from go 1.13,
and these have changed in go 1.18 enough that they are not any more compatible.

we need to update our copy of the internal components to 1.18 too.
In the meantime perhaps you can try building crlfmt using go 1.17 or earlier.

commented

Thanks @knz, I think I'll just wait then.

Would you mind sharing why you had to fork the stdlib? That's pretty wild :D

commented

We did not fork all of it. Only some internal components used to prtty-print the AST of the code (to reformat it).