We still want this compile error but I'm giving up on implementing it
correctly in stage1. It's been buggy and has false positives sometimes.
I left the test cases there, but commented out, so that when we go
through the stage1 compile error cases and get coverage for them in
stage2 we can reactivate the test cases.
closes#2154
This is part of an ongoing effort to reduce size of in-memory AST. This
enum flattening pattern is widespread throughout the self-hosted
compiler.
This is a API breaking change for consumers of the self-hosted parser.
* introduce a dump() function on Module.Fn which helpfully prints to
stderr the ZIR representation of a function (can be called before
attempting to codegen it). This is a debugging tool.
* implement x86 codegen for loops
* liveness: fix analysis of conditional branches. The logic was buggy
in a couple ways:
- it never actually saved the results into the IR instruction (fixed now)
- it incorrectly labeled operands as dying when their true death was
after the conditional branch ended (fixed now)
* zir rendering is enhanced to show liveness analysis results. this
helps when debugging liveness analysis.
* fix bug in zir rendering not numbering instructions correctly
closes#6021
It wasn't wrong info, but e.g. GDB couldn't handle non-power-of-two
enum tags. Now we tell debug info that enum tags are always power of two
size.
closes#4526closes#5432
`std.os.getFdPath` is very platform-specific and can be used to query
the OS for a canonical path to a file handle. Currently supported hosts
are Linux, macOS and Windows.
`std.fs.Dir.realpath` (and null-terminated, plus WTF16 versions) are
similar to `std.os.realpath`, however, they resolve a path wrt to this
`Dir` instance.
If the input pathname argument turns out to be an absolute path, this
function reverts to calling `realpath` on that pathname completely
ignoring this `Dir`.
* Add short documentation to std.log.scoped and std.log.default
* Update the module documentation and example to explain the difference
between using explicit scopes, using a scoped logging namespace, and
using the default namespace
* Add a std.log.scoped function that returns a scoped logging struct
* Add a std.log.default struct that logs using the .default scope
Implementation of daurnimator's proposal:
https://github.com/ziglang/zig/issues/5943#issuecomment-669043489
Note that I named the function "scoped" instead of "scope" so as not to
clash with the scope parameter that is used everywhere; this seemed a
better solution to me than renaming the scope parameter to "s" or
"log_scope" or the like.
This makes collected stack traces omit less useful frames. For user
applications which only store a fixed number of stack frames this can
make a big difference.
