NATIVE: depth of display of values in REPL error messages

[martin-henz]

Chrome in MacOS:

https://sourceacademy.nus.edu.sg/playground#chap=2&ext=RUNES&prgrm=PTAEENQBwSwDwKYBsD6BnAxgCwQWwaDGhKAGYCuAdhgC4wD2lZATvbiVPWjHY6DfVDMqCAFAhoXHgyZFQAcxgA3BEwDuPLKCXgk5BMRigAFKzUBKIeEqKb4sKVbsADP0FMAtKACMAGgiUACagAFYmGPR6uJSWzNa28ixs9qCuAqDsXt6iohTUvEwARkjgGADWKLCIqJg4%2BMYw-iH%2BlP64lgDeoqA9Qgg05MxFJeXGaACO5ODMCOYA3KIAvjl5tDKgEUj0zBSoVcjo2HgIDU0tbZ3dvVc9MwNDG5HbY5PTCE09YK2Enxn%2BzgA6ACs8yWKyoaz4m22uxQGBgzAw5BKzEq8AOtWOp1C5wyl16j0oaBooECcFAAF4MuAaFgUOBCmgGqAvEwwAAmUEEiJEkmBACelOptPpjOMYS87A5XN6POJpKFuBpdImzBoxjJACoyaAANSk-na-ky279QZMaHMF5TGb%2BYJff7%2Bbyg5a5CEFaAwWiDE7fXD%2BfY1I74fG9VYepVlBAoMzYkKhgmm%2B5MMIUtOpUAAflAExtYkTBdAAC5QIUDDBAtHHKVjOKWT5LGBmjdC63W5Ho7HGqF687fC224PeoHDnUTt3mqA-eYTaBlgTw%2BsO%2BhXjMGgnE3dzT801TXNnc28B4WS8TShVqxha0Yso3CP5j0P2%2BAoyu88zb-2n9-l12Lo-v0TWd516LcHmXQ81xiBZXTQLB6DUYxYG9NcgWcZx-DQjDHi2HZkTRapR2OGcFiAA

gives this in JavaScript console and browser hangs:

[martin-henz]

This program now produces a nice error message in the REPL:

Line 31: Potential infinite recursion detected: stack_frac(0.9953271028037384, { "isPrimary": false,
"transMatrix":
{ "0": 1,
"1": 0,
"2": 0,
...

However, the display value is so large that scrolling becomes impractical. The display of arguments in error messages needs to be limited in depth.

[martin-henz]

This is a nasty test for runes. A working version is this:
https://share.sourceacademy.nus.edu.sg/dbquf
(replace 5,5 by 500,500)

There is no issue for this program regarding the display of values in the REPL. We would need to find a new program where the display of large values occurs in the REPL.