because it uncovered a result location bug, and I need to get this
branch merged before going into a result location rabbit hole.
also fix the result type of slicing when the indexes are runtime known
and the result should be sentinel terminated.
* Don't add an extra slot for the sentinel. Most of the code keeps using
the constant value from the type descriptor, let's harmonize all the
code dealing with sentinels.
* Properly write out sentinel values when reinterpreting pointers at
comptime.
* Allow the reading of the 0th element in a `[0:S]T` type.
Remove `std.fs.deleteTree`. Callers instead should use
`std.fs.cwd().deleteTree`.
Add `std.fs.deleteTreeAbsolute` for when the caller has an absolute
path.
* remove deprecated `std.fs.Dir` APIs
* `std.fs.Dir.openDir` now takes a options struct with bool fields for
`access_sub_paths` and `iterate`. It's now much more clear how
opening directories works.
* fixed the std lib and various zig code calling the wrong openDir
function.
* the runtime safety check for dir flags is removed in favor of the
cheaper option of putting a comment on the same line as handling
EBADF / ACCESS_DENIED, since that will show up in stack traces.
closes#4682
The self-hosted compiler is still bit rotted and still not compiling
successfully yet. I have a more serious rework of the code in a
different branch.
This behaves the same as stdout and stderr behavior which also
default to .inherit. Also adds a field to RunStep to change the behavior.
Since this is a breaking change, previous behavior can be restored by doing:
`RunStep.stdin_behavior = .Ignore`.
When building an object file from only one source file, instead of
having a two-stage cache system, we special case it and use the cache
directory that the .o file is output to as the final cache directory for
all the build artifacts.
When there are more than 1 source file, the linker has to merge objects
into one, and so the two stage approach makes sens. But in the case of
only one source file, this prevents needlessly copying the object file.
This commit fixes an issue with the previous one, where zig with cache
enabled would print a directory that actually did not have any build
artifacts in it.
