Make flatc generate Rust files not requiring std (#7273)

* Set an explicit 2018 edition for Rust tests

* Replace all `std` usage with `core` and `alloc` in Rust code generator

* Update the generated files

* Make Rust tests actually use no_std when the corresponding feature is enabled
This commit is contained in:
Bogdan Opanchuk
2022-04-26 18:40:03 -07:00
committed by GitHub
parent 9917a168cd
commit 750dde7669
88 changed files with 799 additions and 430 deletions

View File

@@ -1,7 +1,11 @@
// automatically generated by the FlatBuffers compiler, do not modify
extern crate alloc;
extern crate flatbuffers;
use std::mem;
use std::cmp::Ordering;
use alloc::boxed::Box;
use alloc::string::{String, ToString};
use alloc::vec::Vec;
use core::mem;
use core::cmp::Ordering;
use self::flatbuffers::{EndianScalar, Follow};
use super::*;
#[deprecated(since = "2.0.0", note = "Use associated constants instead. This will no longer be generated in 2021.")]
@@ -42,8 +46,8 @@ impl OptionalByte {
}
}
}
impl std::fmt::Debug for OptionalByte {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
impl core::fmt::Debug for OptionalByte {
fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
if let Some(name) = self.variant_name() {
f.write_str(name)
} else {

View File

@@ -1,7 +1,11 @@
// automatically generated by the FlatBuffers compiler, do not modify
extern crate alloc;
extern crate flatbuffers;
use std::mem;
use std::cmp::Ordering;
use alloc::boxed::Box;
use alloc::string::{String, ToString};
use alloc::vec::Vec;
use core::mem;
use core::cmp::Ordering;
use self::flatbuffers::{EndianScalar, Follow};
use super::*;
pub enum ScalarStuffOffset {}
@@ -626,8 +630,8 @@ impl<'a: 'b, 'b> ScalarStuffBuilder<'a, 'b> {
}
}
impl std::fmt::Debug for ScalarStuff<'_> {
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
impl core::fmt::Debug for ScalarStuff<'_> {
fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
let mut ds = f.debug_struct("ScalarStuff");
ds.field("just_i8", &self.just_i8());
ds.field("maybe_i8", &self.maybe_i8());