search

sharkdp / numbat

A statically typed programming language for scientific computations with first class support for physical dimensions and units
https://numbat.dev
Apache License 2.0
1.16k stars 50 forks source link

Shrink span #578

Closed rben01 closed 5 days ago

rben01 commented 6 days ago

Span is now 16 bytes instead of 32 (on a 64 bit machine) due to the removal of fields line and position from SourceCodePositition [sic]. Related: #559

This was a remarkably simple change. I was surprised to find that none of the error reporting actually relied on line and position; it was all just byte-based. Those fields were only used in tests. If later desired, we can hang onto cumulative line lengths and convert byte index into line + position as needed. (But apparently that is not currently needed.)

One thing to note is that tests that were formerly based on position are now based on byte, which means they're off by 1 (position n became byte n-1).

sharkdp commented 5 days ago

This was a remarkably simple change. I was surprised to find that none of the error reporting actually relied on line and position; it was all just byte-based.

Oh, haha :smile:. I guess it might have been used at an earlier stage. Or maybe I just implemented it because I thought it would be required, and then forgot about it. Thank you very much for all your changes. This is really valuable work!