programming-language

This subject was initially discussed in https://discourse.julialang.org/t/efficient-way-to-split-string-at-specific-index/83115/17 regarding a way to split a string into equal-length substrings.

The solutions discussed involved (for a string composed of 10 blocks of 8 strings)

• using a comprehension split8(str::String) = [str[i+1:8] for i in 0:8:length(str)]
• using a comprehension and `S

Description

Importing an AST with --import-ast using a large JSON file results in a stack overflow and segmentation fault with certain output options.

A quick run with memcheck shows that it stems from a regex match.

Environment

• Compiler version: 0.8.16-develop.2022.6.21+commit.c3ea8661.mod.Linux.g++
• Target EVM version (as per compiler settings): london
• Operating system:

https://github.com/ponylang/ponyc/blob/58134d152503147e7980404990252136dd7b6cc6/src/libponyc/type/lookup.c#L56-L68

This code is a bit bogus. If opt can be NULL, the declaration typecheck_t* t = &opt->check; could crash the compiler. In any case, it looks like the t declaration could be safely moved into the scope of the if-branch, where it is properly guarded against opt == NULL.

Motivation

The Git class currently doesn't support submodules which prevents for example using submodules in Quark repos.

Description of Proposed Feature

Add a submodule method to Git and add submodule recursion to the Quark install step, eg adding the --recurse-submodules git flag to the clone command. This will download an

Something like...

const puppies = map.from_list([
    "August",
    "Dot",
    "Mady",
    "Spot",
    "Toby"
  ] |> list.map(fn (name) { #(name, Puppy(name, good: True, soft: True)) }))

...turns into...