lix/tests/functional2/repl_characterization/stacktrace/oob.md

args

args
--debugger

let f = _: throw "x_x"; x = f 5; in x

error: x_x

Added 3 variables.

frames from 0 up to 4 work fine

:st 0
:st 4

0: error: x_x
«string»:1:12

     1| let f = _: throw "x_x"; x = f 5; in x
      |            ^

Env level 0
static: _ 

Env level 1
static: f x 

Env level 2
static: 

Env level 3
abort baseNameOf break builtins derivation derivationStrict dirOf false fetchGit fetchMercurial fetchTarball fetchTree fromTOML import isNull map null placeholder removeAttrs scopedImport throw toString true 

Added 3 variables.


4: while evaluating a 'let' expression
«string»:1:1

     1| let f = _: throw "x_x"; x = f 5; in x
      | ^

Env level 0
static: f x 

Env level 1
static: 

Env level 2
abort baseNameOf break builtins derivation derivationStrict dirOf false fetchGit fetchMercurial fetchTarball fetchTree fromTOML import isNull map null placeholder removeAttrs scopedImport throw toString true 

Added 2 variables.

absolute frames out of bounds print an error

:st 5

error: stack index must be between 0 and 4 (inclusive), but was 5

argument-less :st is still the same afer absolute oob

:st

4: while evaluating a 'let' expression
«string»:1:1

     1| let f = _: throw "x_x"; x = f 5; in x
      | ^

Env level 0
static: f x 

Env level 1
static: 

Env level 2
abort baseNameOf break builtins derivation derivationStrict dirOf false fetchGit fetchMercurial fetchTarball fetchTree fromTOML import isNull map null placeholder removeAttrs scopedImport throw toString true 

Added 2 variables.

positive relative frames oob clamp to upper bound and prints a warning

:st +5

4: while evaluating a 'let' expression
«string»:1:1

     1| let f = _: throw "x_x"; x = f 5; in x
      | ^

Env level 0
static: f x 

Env level 1
static: 

Env level 2
abort baseNameOf break builtins derivation derivationStrict dirOf false fetchGit fetchMercurial fetchTarball fetchTree fromTOML import isNull map null placeholder removeAttrs scopedImport throw toString true 

Added 2 variables.
warning: stopped at stack frame 4, cannot go any higher

negative relative frames oob clamp to lower bound and print a warning

:st -5

0: error: x_x
«string»:1:12

     1| let f = _: throw "x_x"; x = f 5; in x
      |            ^

Env level 0
static: _ 

Env level 1
static: f x 

Env level 2
static: 

Env level 3
abort baseNameOf break builtins derivation derivationStrict dirOf false fetchGit fetchMercurial fetchTarball fetchTree fromTOML import isNull map null placeholder removeAttrs scopedImport throw toString true 

Added 3 variables.
warning: stopped at stack frame 0, cannot go any deeper

quit

:quit

error: x_x