This commit makes it possible to combine self-hosted with a pre-compiled
C object file, e.g.:
```
zig-out/bin/zig build-exe hello.zig add.o
```
where `add.o` is a pre-compiled C object file.
Also:
* improve the "ambiguous reference" error by swapping the order of
"declared here" and "also declared here" notes.
* improve the "not accessible from inner function" error:
- point out that it has to do with the thing being mutable
- eliminate the incorrect association with it being a function
- note where it crosses a namespace boundary
* struct field types are evaluated in a context that has the struct
namespace visible. Likewise with align expressions, linksection
expressions, enum tag values, and union/enum tag argument
expressions.
Closes#9194Closes#9622
Conflicts:
lib/libcxx/include/__config
d57c0cc3bfeff9af297279759ec2b631e6d95140 added support for DragonFlyBSD
to libc++ by updating some ifdefs. This needed to be synced with llvm13.
* stage2 AstGen: add missing compile error for declaring a local
that shadows a primitive. Even with `@""` syntax, it may not have
the same name as a primitive.
* stage2 AstGen: add a compile error for a global declaration
whose name matches a primitive. However it is allowed when using
`@""` syntax.
* stage1: delete all "declaration shadows primitive" compile errors
because they are now handled by stage2 AstGen.
* stage1/stage2 AstGen: notice when using `@""` syntax and:
- treat `_` as a regular identifier
- skip checking if an identifire is a primitive
Check the new test cases for clarifications on semantics.
closes#6062
This way, we will conform to the standard practice of setting the
offset within the section header to the beginning of the file and
we will be able to track the location of the section in the file
for incremental updates.
* rework `build_options` to integrate with the FileSource abstraction
* support mapping as an arbitrarily named package
* support mapping to multiple different artifacts
* use hash of contents for options filename
Locals are not allowed to shadow declarations, but declarations are
allowed to shadow each other, as long as there are no ambiguous
references.
closes#678
Previous commit shifted everything down in the start.zig file, and
unfortunately our stage2 test harness depends on absolute line
numbers for a couple tests.
We already have a LICENSE file that covers the Zig Standard Library. We
no longer need to remind everyone that the license is MIT in every single
file.
Previously this was introduced to clarify the situation for a fork of
Zig that made Zig's LICENSE file harder to find, and replaced it with
their own license that required annual payments to their company.
However that fork now appears to be dead. So there is no need to
reinforce the copyright notice in every single file.
Instead of referencing stub indices since these can now be obtained
in a more generic fashion from the actual linked-list of atoms in
the __stub_helper section.
This is a simple structure containing an array and a length, that can be viewed as a slice.
It is useful to pass-by-copy small data whose exact size is known at runtime, but whose maximum size is known at comptime. This greatly simplifies code that otherwise would require an allocator, or reimplementing what this type does.
