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* Use port_def.inc to prevent macros from leaking to users.
* Added helpful comments to port_def.inc/port_undef.inc.
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* Added UPB_ASSERT() that helps avoid unused var warnings.
* Addressed PR comments.
* Fixed assert in the JIT.
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* Split upb::Arena/upb::Allocator from upb::Environment.
This will allow arenas and allocators to be used
independently of environments, which will be important
for an upcoming change (a message representation).
Overall this design feels cleaner that the previous
Environment/SeededAllocator design.
As part of this change, moved all allocations in upb
to use a global allocator instead of hard-coding
malloc/free. This will allow injecting OOM faults
for more robust testing.
One place that doesn't use the global allocator is
the tracked ref code. Instead of its previous approach
of CHECK_OOM() after every malloc() or table insert, it
simply uses an allocator that does this automatically.
I moved Allocator/Arena/Environment into upb.h.
This seems principled since these are the only types
in upb whose size is directly exposed to users, since
they form the basis of memory allocation strategy.
* Cleaned up some header includes and fixed more malloc -> upb_gmalloc().
* Changes from PR review.
* Don't use UINTPTR_MAX or UINT64_MAX.
* Punt on adding line/file for now.
* We actually can't store (uint64_t)-1, update comment and test.
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Prior to this change, if an error was returned, it would be
guaranteed to always return a short byte count. Now the two
concepts are a bit more orthogonal. There are cases where
the entire input is consumed even though an error was
encountered.
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Prior to this change:
parse(buf, len) -> len + N
...would indicate that the next N bytes of the input are not
needed, *and* would advance the decoding position by this
much.
After this change:
parse(buf, len) -> len + N
parse(NULL, N) -> N
...can be used to achieve the same thing. But skipping the
N bytes is not explicitly performed by the user. A user that
doesn't want/need to skip can just say:
parsed = parse(buf, len);
if (parsed < len) {
// Handle suspend, advance stream by "parsed".
} else {
// Stream was advanced by "len" (even if parsed > len).
}
Updated unit tests to test this new behavior, and refactored
test utility code a bit to support it.
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- removed myself from Author headers in source files.
- removed copyright notices from source file headers.
- added CONTRIBUTING.md
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A large part of this change contains surface-level
porting, like moving variable declarations to the
top of the block.
However there are a few more substantial things too:
- moved internal-only struct definitions to a separate
file (structdefs.int.h), for greater encapsulation
and ABI compatibility.
- removed the UPB_UPCAST macro, since it requires access
to the internal-only struct definitions. Replaced uses
with calls to inline, type-safe casting functions.
- removed the UPB_DEFINE_CLASS/UPB_DEFINE_STRUCT macros.
Class and struct definitions are now more explicit -- you
get to see the actual class/struct keywords in the source.
The casting convenience functions have been moved into
UPB_DECLARE_DERIVED_TYPE() and UPB_DECLARE_DERIVED_TYPE2().
- the new way that we duplicate base methods in derived types
is also more convenient and requires less duplication.
It is also less greppable, but hopefully that is not
too big a problem.
Compiler flags (-std=c89 -pedantic) should help to rigorously
enforce that the code is free of C99-isms.
A few functions are not available in C89 (strtoll). There
are temporary, hacky solutions in place.
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* JSON parser expanded to handle split buffers.
* bugfix to the protobuf decoder.
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