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Refactor idl_gen_rust (#6206)

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* Refactor idl_gen_rust to a ForAllX continuation pattern.
* Updated rust sample code

Co-authored-by: Casper Neo <cneo@google.com>
This commit is contained in:
Casper
2020-10-24 15:46:55 -07:00
committed by GitHub
parent 84809be7e7
commit e68e8d7de9
2 changed files with 195 additions and 268 deletions
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74
samples/monster_generated.rs
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@@ -26,37 +26,50 @@ pub mod sample {
extern crate flatbuffers;
use self::flatbuffers::EndianScalar;
#[deprecated(since = "1.13", note = "Use associated constants instead. This will no longer be generated in 2021.")]
pub const ENUM_MIN_COLOR: i8 = 0;
#[deprecated(since = "1.13", note = "Use associated constants instead. This will no longer be generated in 2021.")]
pub const ENUM_MAX_COLOR: i8 = 2;
#[deprecated(since = "1.13", note = "Use associated constants instead. This will no longer be generated in 2021.")]
#[allow(non_camel_case_types)]
pub const ENUM_VALUES_COLOR: [Color; 3] = [
Color::Red,
Color::Green,
Color::Blue,
];
#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
#[repr(transparent)]
pub struct Color(pub i8);
#[allow(non_upper_case_globals)]
impl Color {
pub const ENUM_MIN: i8 = 0;
pub const ENUM_MAX: i8 = 2;
pub const Red: Self = Self(0);
pub const Green: Self = Self(1);
pub const Blue: Self = Self(2);
pub const ENUM_MIN: i8 = 0;
pub const ENUM_MAX: i8 = 2;
pub const ENUM_VALUES: &'static [Self] = &[
Self::Red,
Self::Green,
Self::Blue,
];
/// Returns the variant's name or "" if unknown.
pub fn variant_name(self) -> &'static str {
pub fn variant_name(self) -> Option<&'static str> {
match self {
Self::Red => "Red",
Self::Green => "Green",
Self::Blue => "Blue",
_ => "",
Self::Red => Some("Red"),
Self::Green => Some("Green"),
Self::Blue => Some("Blue"),
_ => None,
}
}
}
impl std::fmt::Debug for Color {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
let name = self.variant_name();
if name.is_empty() {
f.write_fmt(format_args!("<UNKNOWN {:?}>", self.0))
} else {
if let Some(name) = self.variant_name() {
f.write_str(name)
} else {
f.write_fmt(format_args!("<UNKNOWN {:?}>", self.0))
}
}
}
@@ -87,41 +100,46 @@ impl flatbuffers::EndianScalar for Color {
}
}
#[deprecated(since = "1.13", note = "Use associated constants instead. This will no longer be generated in 2021.")]
pub const ENUM_MIN_EQUIPMENT: u8 = 0;
#[deprecated(since = "1.13", note = "Use associated constants instead. This will no longer be generated in 2021.")]
pub const ENUM_MAX_EQUIPMENT: u8 = 1;
#[deprecated(since = "1.13", note = "Use associated constants instead. This will no longer be generated in 2021.")]
#[allow(non_camel_case_types)]
pub const ENUM_VALUES_COLOR: [Color; 3] = [
Color::Red,
Color::Green,
Color::Blue
pub const ENUM_VALUES_EQUIPMENT: [Equipment; 2] = [
Equipment::NONE,
Equipment::Weapon,
];
#[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
#[repr(transparent)]
pub struct Equipment(pub u8);
#[allow(non_upper_case_globals)]
impl Equipment {
pub const ENUM_MIN: u8 = 0;
pub const ENUM_MAX: u8 = 1;
pub const NONE: Self = Self(0);
pub const Weapon: Self = Self(1);
pub const ENUM_MIN: u8 = 0;
pub const ENUM_MAX: u8 = 1;
pub const ENUM_VALUES: &'static [Self] = &[
Self::NONE,
Self::Weapon,
];
/// Returns the variant's name or "" if unknown.
pub fn variant_name(self) -> &'static str {
pub fn variant_name(self) -> Option<&'static str> {
match self {
Self::NONE => "NONE",
Self::Weapon => "Weapon",
_ => "",
Self::NONE => Some("NONE"),
Self::Weapon => Some("Weapon"),
_ => None,
}
}
}
impl std::fmt::Debug for Equipment {
fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
let name = self.variant_name();
if name.is_empty() {
f.write_fmt(format_args!("<UNKNOWN {:?}>", self.0))
} else {
if let Some(name) = self.variant_name() {
f.write_str(name)
} else {
f.write_fmt(format_args!("<UNKNOWN {:?}>", self.0))
}
}
}
@@ -152,12 +170,6 @@ impl flatbuffers::EndianScalar for Equipment {
}
}
#[allow(non_camel_case_types)]
pub const ENUM_VALUES_EQUIPMENT: [Equipment; 2] = [
Equipment::NONE,
Equipment::Weapon
];
pub struct EquipmentUnionTableOffset {}
// struct Vec3, aligned to 4
#[repr(C, align(4))]