Defer calls to mutable_unknown_fields() until it is actually required to
save memory for C++ lite runtime.
Change-Id: Ica9c1fd276cdb164942d1e7b6e098c83ee3ffdc5
This addresses issue #1008, by creating a JsonFormatter which is private and only different
to JsonFormatter.Default in terms of reference equality.
Other plausible designs:
- The same, but expose the diagnostic-only formatter
- Add something to settings to say "I don't have a type registry at all"
- Change the behaviour of JsonFormatter.Default (bad idea IMO, as we really *don't* want the result of this used as regular JSON to be parsed)
Note that just trying to find a separate fix to issue #933 and using that to override Any.ToString() differently wouldn't work for messages that *contain* an Any.
Generated code changes follow in the next commit.
This is adapted from the branch of @xfxyjwf at:
494716a682
and should solve the protobuf compilation problem against nvcc.
Tested against nvcc 6.5 and 7.0.
There are corner cases where MessageDescriptor.{ClrType,Parser} will return null, and these are now documented. However, normally they *should* be implemented, even for descriptors of for dynamic messages. Ditto FieldDescriptor.Accessor.
We'll still need a fair amount of work to implement dynamic messages, but this change means that the public API will be remain intact.
Additionally, this change starts making use of C# 6 features in the files that it touches. This is far from exhaustive, and later PRs will have more.
Generated code changes coming in the next commit.
Generated code coming in next commit - in a subsequent PR I want to do a bit of renaming and redocumenting around this, in anticipation of DynamicMessage.
In the old flow, any 2 char prefix in the expected file was still generating a
warning about being a poor prefix. Now we check the expected file first, so
anything expected is let through.
Instead of having a Proto nested namespace to avoid conflicts between the descriptor-holding static class and message classes, just append "Reflection" to the name.
Generated code changes (and corresponding manual changes) in following commit.
1. mathlimits.h must be included before the inclusion of cmath (which
gtest/gtest.h seems to include).
2. hash function for StringPiece doesn't work.
Change-Id: I358a25d941a25b10b39fe76780eda41557699811
VC++ up to VS 2015 RTM does not require explicit storage allocation for
static const integers declared in classes. VS 2015 Update 1 requires
these storage definitions in some cases. It's unclear exactly what
cases - simple tests work with and without the explicit storage
allocation.
Many previous versions of VC++ have theoretically *allowed* a
definition to supply storage, but tests on VC++ 2013 show that this
doesn't actually work correctly - it leads to duplicate definition
errors in Chromium. So, the change is scoped to VS 2015 only.
This change also updates the generated files to match the new generator.
TL;DR - this change is necessary in order for Chromium to build with
VS 2015 Update 1.
