A crash happened between switches of branches

[ZuBB]

I was checking some old stuff and was switching branches back and forth. At some moment I looked to next terminal tab where usually I run build and found next

15:26:20: An update from chokidar is about to be triggered
15:26:20: An update from chokidar is about to be triggered
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x2 addr=0x7a pc=0x1052fcf14]

goroutine 51572 [running]:
github.com/evanw/esbuild/internal/resolver.resolverQuery.tsConfigForDir(...)
        github.com/evanw/esbuild/internal/resolver/resolver.go:1086
github.com/evanw/esbuild/internal/resolver.resolverQuery.resolveWithoutSymlinks({0x14001710480?, 0x140002c0190?, 0x0?, 0x0?}, {0x140000b6450, 0x2d}, 0x0, {0x1400008c480, 0x57})
        github.com/evanw/esbuild/internal/resolver/resolver.go:936 +0x214
github.com/evanw/esbuild/internal/resolver.(*Resolver).Resolve(0x14001710480, {0x140000b6450, 0x2d}, {0x1400008c480, 0x57}, 0x0)
        github.com/evanw/esbuild/internal/resolver/resolver.go:519 +0x1424
github.com/evanw/esbuild/internal/bundler.RunOnResolvePlugins({0x140001b2000?, 0x2, 0x2?}, 0x14001710480?, {0x1400088a0e0, 0x1400000d440, 0x1400000d4d0, 0x140002c7280, 0x4, 0x14000182360}, ...)
        github.com/evanw/esbuild/internal/bundler/bundler.go:961 +0x254
github.com/evanw/esbuild/internal/bundler.(*scanner).addEntryPoints.func1(0x8, {{0x1400008c480, 0x57}, {0x0, 0x0}, 0x1})
        github.com/evanw/esbuild/internal/bundler/bundler.go:1798 +0x334
created by github.com/evanw/esbuild/internal/bundler.(*scanner).addEntryPoints
        github.com/evanw/esbuild/internal/bundler/bundler.go:1765 +0xa98
^C⏎                                                                                                                                       vv@my-precious ~/work/own/career-partner/source-code $

I am afraid I can't provide a repro. I understand that the above log may not be enough to fix the issue. So I am okay with it just getting closed. I just wanted to report it anyway.

edit: some grammar fixes; esbuild v0.19.12

[evanw]

Thanks for the report. I was able to reproduce it with this test case:

require('esbuild').build({
  entryPoints: [],
  bundle: true,
  plugins: [{
    name: 'abc',
    setup(build) {
      build.onStart(() => build.resolve('/foo', {
        kind: 'require-call',
        resolveDir: 'bar',
      }))
    }
  }],
})

Meaning the problem is a crash when resolving a path in a directory that doesn't exist.