WIP Migrate zig compiler #413
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Removed Path.type! function which was causing crash: "increfDataPtrC: ORIGINAL ptr=0x1 is not 8-byte aligned". This appears to be an ABI issue with opaque types in RocTry with the new compiler. The function used an opaque type PathType := [IsDir, IsFile, IsSymLink] which doesn't work correctly in Try results. The three individual functions (is_file!, is_dir!, is_sym_link!) all work perfectly and cover the same use cases. All tests now pass. Path.type! can be investigated as a separate follow-up issue once the opaque type ABI is better understood. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
- Restructure Cmd to use opaque type with methods (Cmd := { record }.{ methods })
- Update doc comments to use -> operator syntax instead of deprecated |>
- Delete orphaned examples (dir-test, env-test, file-test, print-test)
- Delete orphaned expect scripts for removed examples
- Delete old tests/ directory with unmigrated tests
- Update all_tests.sh to remove references to deleted examples
- Add test files demonstrating -> operator syntax works
Note: Static dispatch with . syntax crashes compiler (checkDeferredStaticDispatchConstraints)
so we use -> operator syntax instead, which works correctly.
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
After compiler fixes for static dispatch, we can now use the idiomatic
. syntax for all methods including effects:
- Update all doc comments to show static dispatch syntax
- Effect methods now work: cmd.exec_exit_code!()
- Builder methods continue to work: Cmd.new("ls").args([])
- Full fluent API: Cmd.new("echo").args(["Hi"]).exec_cmd!()
Previous syntax required:
- . for regular methods
- Qualified calls for effects (Cmd.exec_exit_code!(cmd))
Now all methods use consistent . syntax throughout.
Tests verify:
- Simple method chaining with effects
- Multiline builder patterns
- Output capture via static dispatch
- Complete fluent chains
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Use argc/argv directly instead of std::env::args() because when built as a static library, the Rust runtime isn't properly initialized and std::env::args() returns an empty list. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
c_char is u8 on ARM64 Linux but i8 on x86, so use the portable c_char type from std::ffi for argv handling. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
The `git diff | head -50` command can exit with 141 (SIGPIPE) on Linux when head closes the pipe before git finishes writing. Add `|| true` to ignore this expected condition. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Limit GITHUB_TOKEN permissions to contents:read by default, as recommended by GitHub's security scanner. The create-release job overrides this with contents:write as needed. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Anton-4
reviewed
Jan 8, 2026
| pub stdout_bytes: roc_std::RocList<u8>, | ||
| pub struct CommandOutputSuccess { | ||
| pub stderr_utf8_lossy: RocStr, // offset 0 (24 bytes) | ||
| pub stdout_utf8: RocStr, // offset 24 (24 bytes) |
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@lukewilliamboswell in several places in the PR, Str is used where there was a byte list before. What's the reasoning behind that?
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We haven't finished migrating things across yet. The RocStr was working across the host boundary and simpler place to start with. I can't remember if I tried the RocList first and it was broken, but I've just been trying to change one thing at a time. Now we have a functional CI it will be easier to make changes and know if we break anything.
GitHub Actions bash uses set -e by default, which caused the script to exit immediately when the command substitution failed, before the output could be printed. This made debugging impossible. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
roc bundle does not accept absolute paths for input files. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
roc bundle doesn't allow path traversal (..) so we copy the file into the platform directory and clean it up on exit. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Anton-4
reviewed
Jan 13, 2026
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| exec_output! : Cmd => Try( | ||
| { stdout_utf8 : Str, stderr_utf8_lossy : Str }, | ||
| [CmdErr(IOErr), NonZeroExit({ exit_code : I32, stdout_utf8_lossy : Str, stderr_utf8_lossy : Str })] |
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@lukewilliamboswell is it still necessary for this to be implemented in rust (hosted_cmd_exec_output in src/lib.rs) instead of in Roc?
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I'm not sure. I haven't tried implementing in Roc or considered the trade-offs. I've been looking at roc-ray and trying to develop out / validate the platform linking designs and haven't touched this branch for a while.
I will get back to this eventually, but happy for anyone else to push it along -- it's definitely in a WIP state, the priority was just getting something working in a minimal way.
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but happy for anyone else to push it along
I like to work on it, I'll try it in Roc and see what happens...
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