Commit Graph

8 Commits

Author SHA1 Message Date
Raphael Taylor-Davies
374f8fb5fb Rust soundness fixes (#7518)
* Rust soundness fixes

* Second pass

* Make init_from_table unsafe

* Remove SafeSliceAccess

* Clippy

* Remove create_vector_of_strings

* More clippy

* Remove deprecated root type accessors

* More soundness fixes

* Fix EndianScalar for bool

* Add TriviallyTransmutable

* Add debug assertions

* Review comments

* Review feedback
2022-09-29 09:58:49 -04:00
Casper
3d903302c3 [Rust] Add length checks to arrays and vectors. (#7130)
* [Rust] Add length checks to arrays and vectors.

The previous behavior allowed for out of bounds access in
the public API (#7011).

* bump semver and test warning

Co-authored-by: Casper Neo <cneo@google.com>
2022-02-24 13:49:59 -05:00
Max Burke
1d294a31b8 Implement Serialize on generated rust types (#7022)
* fix for rust build

* Rust: Implement Serialize on generated types

For debugging convenience it is really handy to be able to dump out
types as another format (ie: json). For example, if we are logging a
type to a structured logging system, or even printing it out in a
structured way to the console.

Right now we handle this by shelling out to `flatc` which is not ideal;
by implementing Serialize on the generated types we can use any of the
Serializer-implementing packages for our structured debug output.

* clang-format

* Make the flatbuffers Rust crate only have an optional dependency on the `serde` packages.

* fix warning

* fix rust test build

* Oh yeah this needs to be initialized

* fix toml syntax

* code review feedback

* rebuild test data
2022-01-30 19:29:18 -05:00
Marcin Witkowski
aff818cebf rust: Allow for usage in no_std environment (#6989) 2022-01-20 11:49:02 -05:00
Casper
8fa3dfdb5d Introduce new_from_vec in Rust (also fix formatting) (#6599)
* Introduce new_from_vec in Rust (also fix formatting)

Also, rename `new_with_capacity` to `with_capacity` to match
how `Vec` does it.

* bump rust version

* mut_finished_buffer

Co-authored-by: Casper Neo <cneo@google.com>
2021-04-29 18:23:22 -04:00
Casper
c87179e73e Rust Remove SafeSliceAccess for Arrays, and fix miri. (#6592)
* Fix Miri flag passing and bump Rust version.

* Fix Miri problems from Arrays PR.

SafeSliceAccess was removed for Arrays. It's kind of unsound.
It has two properties:
1. EndianSafe
2. Alignment 1

We only need 1. in create_vector_direct to memcpy data.
We both 1. and 2. for accessing things with slices as buffers are built on &[u8]
which is unaligned. Conditional compilation implements
SafeSliceAccess for >1byte scalars (like f32) on LittleEndian machines
which is wrong since they don't satisfy 2.

This UB is still accessible for Vectors (though not exercised our
tests) as it implements SafeSliceAccess. I'll fix this later by
splitting SafeSliceAccess into its 2 properties.

Co-authored-by: Casper Neo <cneo@google.com>
2021-04-26 19:28:25 -04:00
Casper
c24031c36b Mark endian_scalar as unsafe. (#6588)
* Mark endian_scalar as unsafe.

Also
- removed the deprecated flexbuffer slice from example
- fixed some cargo warnings

* Assertions and read_scalar made unsafe

* Clippy lints

* Add to Safety

Co-authored-by: Casper Neo <cneo@google.com>
2021-04-26 09:18:58 -04:00
Eddie Linder
da3bb64ef6 [Rust] Add support for fixed size arrays (#6548)
* Add support for fixed size arrays

* clang-format

* Update rust image to 1.51 to support const generics

* Handle correctly big endian

* Add fuzz tests and clean code

* Add struct fuzz test and optimize struct arrays for api

* Bump flatbuffers crate version
2021-04-16 11:15:59 -04:00