Rust: add qldoc annotations to schema

This commit is contained in:
Arthur Baars
2024-09-19 15:03:29 +02:00
parent b2bddd3415
commit 2fdc529ac9
2 changed files with 902 additions and 0 deletions

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@@ -11,3 +11,4 @@ For how documentation of generated QL code works, please read `misc/codegen/sche
from .prelude import *
from .ast import *
from .annotations import *

901
rust/schema/annotations.py Normal file
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@@ -0,0 +1,901 @@
from misc.codegen.lib.schemadefs import *
from .ast import *
@annotate(Module)
@rust.doc_test_signature(None)
class _:
"""
A module declaration. For example:
```rust
mod foo;
```
```rust
mod bar {
pub fn baz() {}
}
```
"""
@annotate(Expr)
class _:
"""
The base class for expressions.
"""
pass
@annotate(Pat)
class _:
"""
The base class for patterns.
"""
pass
@annotate(Label)
class _:
"""
A label. For example:
```rust
'label: loop {
println!("Hello, world (once)!");
break 'label;
};
```
"""
@annotate(Stmt)
class _:
"""
The base class for statements.
"""
pass
@annotate(TypeRef)
class _:
"""
The base class for type references.
```rust
let x: i32;
let y: Vec<i32>;
let z: Option<i32>;
```
"""
pass
@annotate(Path)
class _:
"""
A path. For example:
```rust
foo::bar;
```
"""
pass
@annotate(GenericArgList)
class _:
"""
The base class for generic arguments.
```rust
x.foo::<u32, u64>(42);
```
"""
pass
@annotate(Function)
@rust.doc_test_signature(None)
class _:
"""
A function declaration. For example
```rust
fn foo(x: u32) -> u64 {(x + 1).into()}
```
A function declaration within a trait might not have a body:
```rust
trait Trait {
fn bar();
}
```
"""
@annotate(MissingExpr)
class _:
"""
A missing expression, used as a placeholder for incomplete syntax.
```rust
let x = non_existing_macro!();
```
"""
pass
@annotate(PathExpr)
class _:
"""
A path expression. For example:
```rust
let x = variable;
let x = foo::bar;
let y = <T>::foo;
let z = <TypeRef as Trait>::foo;
```
"""
@annotate(IfExpr)
class _:
"""
An `if` expression. For example:
```rust
if x == 42 {
println!("that's the answer");
}
```
```rust
let y = if x > 0 {
1
} else {
0
}
```
"""
@annotate(LetExpr)
@rust.doc_test_signature("(maybe_some: Option<String>) -> ()")
class _:
"""
A `let` expression. For example:
```rust
if let Some(x) = maybe_some {
println!("{}", x);
}
```
"""
@annotate(BlockExpr)
class _:
"""
A block expression. For example:
```rust
{
let x = 42;
}
```
```rust
'label: {
let x = 42;
x
}
```
"""
@annotate(AsyncBlockExpr)
@rust.doc_test_signature("() -> i32")
class _:
"""
An async block expression. For example:
```rust
async {
let x = 42;
x
}.await
```
"""
pass
@annotate(ConstExpr)
@rust.doc_test_signature("() -> bool")
class _:
"""
A `const` block expression. For example:
```rust
if const { SRC::IS_ZST || DEST::IS_ZST || mem::align_of::<SRC>() != mem::align_of::<DEST>() } {
return false;
}
```
"""
@annotate(UnsafeBlockExpr)
class _:
"""
An unsafe block expression. For example:
```rust
let layout = unsafe {
let x = 42;
Layout::from_size_align_unchecked(size, align)
};
```
"""
pass
@annotate(LoopExpr)
class _:
"""
A loop expression. For example:
```rust
loop {
println!("Hello, world (again)!");
};
```
```rust
'label: loop {
println!("Hello, world (once)!");
break 'label;
};
```
```rust
let mut x = 0;
loop {
if x < 10 {
x += 1;
} else {
break;
}
};
```
"""
@annotate(CallExpr)
class _:
"""
A function call expression. For example:
```rust
foo(42);
foo::<u32, u64>(42);
foo[0](42);
foo(1) = 4;
```
"""
@annotate(MethodCallExpr)
class _:
"""
A method call expression. For example:
```rust
x.foo(42);
x.foo::<u32, u64>(42);
```
"""
@annotate(MatchArm)
@rust.doc_test_signature("(x: i32) -> i32")
class _:
"""
A match arm. For example:
```rust
match x {
Option::Some(y) => y,
Option::None => 0,
};
```
```rust
match x {
Some(y) if y != 0 => 1 / y,
_ => 0,
};
```
"""
@annotate(MatchExpr)
@rust.doc_test_signature("(x: i32) -> i32")
class _:
"""
A match expression. For example:
```rust
match x {
Option::Some(y) => y,
Option::None => 0,
}
```
```rust
match x {
Some(y) if y != 0 => 1 / y,
_ => 0,
}
```
"""
@annotate(ContinueExpr)
class _:
"""
A continue expression. For example:
```rust
loop {
if not_ready() {
continue;
}
}
```
```rust
'label: loop {
if not_ready() {
continue 'label;
}
}
```
"""
@annotate(BreakExpr)
class _:
"""
A break expression. For example:
```rust
loop {
if not_ready() {
break;
}
}
```
```rust
let x = 'label: loop {
if done() {
break 'label 42;
}
};
```
"""
@annotate(ReturnExpr)
@rust.doc_test_signature(None)
class _:
"""
A return expression. For example:
```rust
fn some_value() -> i32 {
return 42;
}
```
```rust
fn no_value() -> () {
return;
}
```
"""
@annotate(BecomeExpr)
@rust.doc_test_signature(None)
class _:
"""
A `become` expression. For example:
```rust
fn fact_a(n: i32, a: i32) -> i32 {
if n == 0 {
a
} else {
become fact_a(n - 1, n * a)
}
}
```
"""
@annotate(YieldExpr)
class _:
"""
A `yield` expression. For example:
```rust
let one = #[coroutine]
|| {
yield 1;
};
```
"""
@annotate(YeetExpr)
class _:
"""
A `yeet` expression. For example:
```rust
if x < size {
do yeet "index out of bounds";
}
```
"""
@annotate(RecordExprField)
class _:
"""
A field in a record expression. For example `a: 1` in:
```rust
Foo { a: 1, b: 2 };
```
"""
@annotate(RecordExpr)
class _:
"""
A record expression. For example:
```rust
let first = Foo { a: 1, b: 2 };
let second = Foo { a: 2, ..first };
Foo { a: 1, b: 2 }[2] = 10;
Foo { .. } = second;
```
"""
@annotate(FieldExpr)
class _:
"""
A field access expression. For example:
```rust
x.foo
```
"""
@annotate(AwaitExpr)
class _:
"""
An `await` expression. For example:
```rust
async {
let x = foo().await;
x
}
```
"""
@annotate(CastExpr)
class _:
"""
A cast expression. For example:
```rust
value as u64;
```
"""
@annotate(RefExpr)
class _:
"""
A reference expression. For example:
```rust
let ref_const = &foo;
let ref_mut = &mut foo;
let raw_const: &mut i32 = &raw const foo;
let raw_mut: &mut i32 = &raw mut foo;
```
"""
@annotate(BoxExpr)
class _:
"""
A box expression. For example:
```rust
let x = #[rustc_box] Box::new(42);
```
"""
@annotate(PrefixExpr)
class _:
"""
A unary operation expression. For example:
```rust
let x = -42
let y = !true
let z = *ptr
```
"""
@annotate(BinaryExpr)
class _:
"""
A binary operation expression. For example:
```rust
x + y;
x && y;
x <= y;
x = y;
x += y;
```
"""
@annotate(RangeExpr)
class _:
"""
A range expression. For example:
```rust
let x = 1..=10;
let x = 1..10;
let x = 10..;
let x = ..10;
let x = ..=10;
let x = ..;
```
"""
@annotate(IndexExpr)
class _:
"""
An index expression. For example:
```rust
list[42];
list[42] = 1;
```
"""
@annotate(ClosureExpr)
class _:
"""
A closure expression. For example:
```rust
|x| x + 1;
move |x: i32| -> i32 { x + 1 };
async |x: i32, y| x + y;
#[coroutine]
|x| yield x;
#[coroutine]
static |x| yield x;
```
"""
@annotate(TupleExpr)
class _:
"""
A tuple expression. For example:
```rust
(1, "one");
(2, "two")[0] = 3;
```
"""
@annotate(ArrayExpr)
class _:
"""
An array expression. For example:
```rust
[1, 2, 3];
[1; 10];
```
"""
pass
@annotate(ElementListExpr)
class _:
"""
An element list expression. For example:
```rust
[1, 2, 3, 4, 5];
[1, 2, 3, 4, 5][0] = 6;
```
"""
@annotate(RepeatExpr)
class _:
"""
A repeat expression. For example:
```rust
[1; 10];
```
"""
@annotate(LiteralExpr)
class _:
"""
A literal expression. For example:
```rust
42;
42.0;
"Hello, world!";
b"Hello, world!";
'x';
b'x';
r"Hello, world!";
true;
```
"""
pass
@annotate(UnderscoreExpr)
class _:
"""
An underscore expression. For example:
```rust
_ = 42;
```
"""
pass
@annotate(OffsetOfExpr)
class _:
"""
An `offset_of` expression. For example:
```rust
builtin # offset_of(Struct, field);
```
"""
@annotate(AsmExpr)
class _:
"""
An inline assembly expression. For example:
```rust
unsafe {
builtin # asm(_);
}
```
"""
@annotate(LetStmt)
class _:
"""
A let statement. For example:
```rust
let x = 42;
let x: i32 = 42;
let x: i32;
let x;
let (x, y) = (1, 2);
let Some(x) = std::env::var("FOO") else {
return;
};
```
"""
@annotate(ExprStmt)
class _:
"""
An expression statement. For example:
```rust
start();
finish()
use std::env;
```
"""
# At the HIR-level, we don't have items, only some markers without location indicating where they used to be.
@annotate(ItemStmt)
@qltest.skip
class _:
"""
An item statement. For example:
```rust
fn print_hello() {
println!("Hello, world!");
}
print_hello();
```
"""
pass
@annotate(MissingPat)
class _:
"""
A missing pattern, used as a place holder for incomplete syntax.
```rust
match Some(42) {
.. => "bad use of .. syntax",
};
```
"""
pass
@annotate(WildcardPat)
class _:
"""
A wildcard pattern. For example:
```rust
let _ = 42;
```
"""
pass
@annotate(TuplePat)
class _:
"""
A tuple pattern. For example:
```rust
let (x, y) = (1, 2);
let (a, b, .., z) = (1, 2, 3, 4, 5);
```
"""
@annotate(OrPat)
class _:
"""
An or pattern. For example:
```rust
match x {
Option::Some(y) | Option::None => 0,
}
```
"""
@annotate(RecordPatField)
class _:
"""
A field in a record pattern. For example `a: 1` in:
```rust
let Foo { a: 1, b: 2 } = foo;
```
"""
@annotate(RecordPat)
class _:
"""
A record pattern. For example:
```rust
match x {
Foo { a: 1, b: 2 } => "ok",
Foo { .. } => "fail",
}
```
"""
@annotate(RangePat)
class _:
"""
A range pattern. For example:
```rust
match x {
..15 => "too cold",
16..=25 => "just right",
26.. => "too hot",
}
```
"""
@annotate(SlicePat)
class _:
"""
A slice pattern. For example:
```rust
match x {
[1, 2, 3, 4, 5] => "ok",
[1, 2, ..] => "fail",
[x, y, .., z, 7] => "fail",
}
```
"""
@annotate(PathPat)
class _:
"""
A path pattern. For example:
```rust
match x {
Foo::Bar => "ok",
_ => "fail",
}
```
"""
@annotate(LiteralPat)
class _:
"""
A literal pattern. For example:
```rust
match x {
42 => "ok",
_ => "fail",
}
```
"""
@annotate(IdentPat)
class _:
"""
A binding pattern. For example:
```rust
match x {
Option::Some(y) => y,
Option::None => 0,
};
```
```rust
match x {
y@Option::Some(_) => y,
Option::None => 0,
};
```
"""
@annotate(TupleStructPat)
class _:
"""
A tuple struct pattern. For example:
```rust
match x {
Tuple("a", 1, 2, 3) => "great",
Tuple(.., 3) => "fine",
Tuple(..) => "fail",
};
```
"""
@annotate(RefPat)
class _:
"""
A reference pattern. For example:
```rust
match x {
&mut Option::Some(y) => y,
&Option::None => 0,
};
```
"""
@annotate(BoxPat)
class _:
"""
A box pattern. For example:
```rust
match x {
box Option::Some(y) => y,
box Option::None => 0,
};
```
"""
@annotate(ConstBlockPat)
class _:
"""
A const block pattern. For example:
```rust
match x {
const { 1 + 2 + 3 } => "ok",
_ => "fail",
};
```
"""