Capture stack trace when an error is raised

[myzie]

Something like this should be able to show the traceback tied to a given error:

try(
  func() {
    error("kaboom")
  },
  func(err) {
    print(err.traceback())
  }
)

[dnbsd]

Is err in your example going to hold an error message as well? For instance I have the following script:

try (func(){
    os.chdir("/notexist")
}, "some error")

The error produced by os.chdir is out of reach and try prevents the error string being shown on stdout, therefore both a programmer and a user has no idea what went wrong.

[rubiojr]

@dnbsd I think that's already the case as of #265 (unreleased):

try (func(){
    os.chdir("/notexist")
}, func(err) {
  print(err)
})

➜ risor test.risor
chdir /notexist: no such file or directory

[dnbsd]

@dnbsd I think that's already the case as of #265 (unreleased):

try (func(){
    os.chdir("/notexist")
}, func(err) {
  print(err)
})

➜ risor test.risor
chdir /notexist: no such file or directory

@rubiojr thanks, rebuilding the binary from the main branch worked.