git.delta.rocks / jrsonnet / refs/commits / 1bfba233fc03

--- a/Cargo.toml
+++ b/Cargo.toml
@@ -122,11 +122,6 @@
 wildcard_imports = "allow"
 enum_glob_use = "allow"
 module_name_repetitions = "allow"
-# TODO: fix individual issues, however this works as intended almost everywhere
-cast_precision_loss = "allow"
-cast_possible_wrap = "allow"
-cast_possible_truncation = "allow"
-cast_sign_loss = "allow"
 # False positives
 # https://github.com/rust-lang/rust-clippy/issues/6902
 use_self = "allow"

--- a/crates/jrsonnet-evaluator/src/arr/mod.rs
+++ b/crates/jrsonnet-evaluator/src/arr/mod.rs
@@ -128,7 +128,12 @@
 	#[must_use]
 	pub fn slice(self, index: Option<i32>, end: Option<i32>, step: Option<NonZeroU32>) -> Self {
 		let get_idx = |pos: Option<i32>, len: usize, default| match pos {
+			#[expect(
+				clippy::cast_sign_loss,
+				reason = "abs value is used, len is limited to u31"
+			)]
 			Some(v) if v < 0 => len.saturating_sub((-v) as usize),
+			#[expect(clippy::cast_sign_loss, reason = "abs value is used")]
 			Some(v) => (v as usize).min(len),
 			None => default,
 		};
@@ -142,7 +147,9 @@
 
 		Self::new(SliceArray {
 			inner: self,
+			#[expect(clippy::cast_possible_truncation, reason = "len is limited to u31")]
 			from: index as u32,
+			#[expect(clippy::cast_possible_truncation, reason = "len is limited to u31")]
 			to: end as u32,
 			step: step.get(),
 		})

--- a/crates/jrsonnet-evaluator/src/arr/spec.rs
+++ b/crates/jrsonnet-evaluator/src/arr/spec.rs
@@ -350,22 +350,26 @@
 	pub fn new_inclusive(start: i32, end: i32) -> Self {
 		Self { start, end }
 	}
+	#[expect(
+		clippy::cast_sign_loss,
+		reason = "the math is valid with wrapping, sign loss works as intended"
+	)]
+	fn size(&self) -> usize {
+		(self.end as usize)
+			.wrapping_sub(self.start as usize)
+			.wrapping_add(1)
+	}
 	fn range(&self) -> impl ExactSizeIterator<Item = i32> + DoubleEndedIterator {
-		WithExactSize(
-			self.start..=self.end,
-			(self.end as usize)
-				.wrapping_sub(self.start as usize)
-				.wrapping_add(1),
-		)
+		WithExactSize(self.start..=self.end, self.size())
 	}
 }
 
 impl ArrayLike for RangeArray {
 	fn len(&self) -> usize {
-		self.range().len()
+		self.size()
 	}
 	fn is_empty(&self) -> bool {
-		self.range().len() == 0
+		self.size() == 0
 	}
 
 	fn get(&self, index: usize) -> Result<Option<Val>> {
@@ -431,6 +435,10 @@
 	fn evaluate(&self, index: usize, value: Val) -> Result<Val> {
 		match &self.mapper {
 			ArrayMapper::Plain(f) => f.call(value),
+			#[expect(
+				clippy::cast_possible_truncation,
+				reason = "array len is limited to u31"
+			)]
 			ArrayMapper::WithIndex(f) => f.call(index as u32, value),
 		}
 	}

--- a/crates/jrsonnet-evaluator/src/evaluate/mod.rs
+++ b/crates/jrsonnet-evaluator/src/evaluate/mod.rs
@@ -548,8 +548,18 @@
 							bail!(FractionalIndex)
 						}
 						if n < 0.0 {
-							bail!(ArrayBoundsError(n as isize, v.len()));
+							#[expect(
+								clippy::cast_possible_truncation,
+								reason = "it would be truncated anyway"
+							)]
+							let n = n as isize;
+							bail!(ArrayBoundsError(n, v.len()));
 						}
+						#[expect(
+							clippy::cast_possible_truncation,
+							clippy::cast_sign_loss,
+							reason = "n is checked postive"
+						)]
 						v.get(n as usize)?
 							.ok_or_else(|| ArrayBoundsError(n as isize, v.len()))?
 					}
@@ -568,18 +578,29 @@
 							bail!(FractionalIndex)
 						}
 						if n < 0.0 {
-							bail!(ArrayBoundsError(n as isize, s.into_flat().chars().count()));
+							#[expect(
+								clippy::cast_possible_truncation,
+								reason = "it would be truncated anyway"
+							)]
+							let n = n as isize;
+							bail!(ArrayBoundsError(n, s.into_flat().chars().count()));
 						}
+						#[expect(
+							clippy::cast_sign_loss,
+							clippy::cast_possible_truncation,
+							reason = "n is positive, overflow will truncate as expected"
+						)]
+						let n = n as usize;
 						let v: IStr = s
 							.clone()
 							.into_flat()
 							.chars()
-							.skip(n as usize)
+							.skip(n)
 							.take(1)
 							.collect::<String>()
 							.into();
 						if v.is_empty() {
-							bail!(StringBoundsError(n as usize, s.into_flat().chars().count()))
+							bail!(StringBoundsError(n, s.into_flat().chars().count()))
 						}
 						StrValue::Flat(v)
 					}),

--- a/crates/jrsonnet-evaluator/src/evaluate/operator.rs
+++ b/crates/jrsonnet-evaluator/src/evaluate/operator.rs
@@ -20,7 +20,8 @@
 		(Plus, Num(n)) => Val::Num(*n),
 		(Minus, Num(n)) => Val::try_num(-n.get())?,
 		(Not, Bool(v)) => Bool(!v),
-		(BitNot, Num(n)) => Val::try_num(!(n.get() as i64) as f64)?,
+		#[expect(clippy::cast_precision_loss, reason = "as spec")]
+		(BitNot, Num(n)) => Val::try_num(!n.truncate_for_bitwise()? as f64)?,
 		(op, o) => bail!(UnaryOperatorDoesNotOperateOnType(op, o.value_type())),
 	})
 }
@@ -73,7 +74,17 @@
 pub fn evaluate_mul_op(a: &Val, b: &Val) -> Result<Val> {
 	use Val::*;
 	Ok(match (a, b) {
+		#[expect(
+			clippy::cast_possible_truncation,
+			clippy::cast_sign_loss,
+			reason = "should not be used with values too large, negative == 0"
+		)]
 		(Str(s), Num(c)) => Val::string(s.to_string().repeat(c.get() as usize)),
+		#[expect(
+			clippy::cast_possible_truncation,
+			clippy::cast_sign_loss,
+			reason = "should not be used with values too large"
+		)]
 		(Num(c), Str(s)) => Val::string(s.to_string().repeat(c.get() as usize)),
 
 		(Num(v1), Num(v2)) => Val::try_num(v1.get() * v2.get())?,
@@ -218,13 +229,28 @@
 		(a, Div, b) => evaluate_div_op(a, b)?,
 		(a, Mod, b) => evaluate_mod_op(a, b)?,
 
-		(Num(v1), BitAnd, Num(v2)) => {
+		(Num(v1), BitAnd, Num(v2)) =>
+		{
+			#[expect(
+				clippy::cast_precision_loss,
+				reason = "values are within safe integer ranges"
+			)]
 			Val::try_num((v1.truncate_for_bitwise()? & v2.truncate_for_bitwise()?) as f64)?
 		}
-		(Num(v1), BitOr, Num(v2)) => {
+		(Num(v1), BitOr, Num(v2)) =>
+		{
+			#[expect(
+				clippy::cast_precision_loss,
+				reason = "values are within safe integer ranges"
+			)]
 			Val::try_num((v1.truncate_for_bitwise()? | v2.truncate_for_bitwise()?) as f64)?
 		}
-		(Num(v1), BitXor, Num(v2)) => {
+		(Num(v1), BitXor, Num(v2)) =>
+		{
+			#[expect(
+				clippy::cast_precision_loss,
+				reason = "values are within safe integer ranges"
+			)]
 			Val::try_num((v1.truncate_for_bitwise()? ^ v2.truncate_for_bitwise()?) as f64)?
 		}
 		(Num(v1), Lhs, Num(v2)) => {
@@ -234,16 +260,28 @@
 			let base = v1.truncate_for_bitwise()?;
 			let exp = v2.truncate_for_bitwise()? % 64;
 
+			#[expect(clippy::cast_sign_loss, reason = "exp is positive")]
 			if exp >= 1 && base >= (1i64 << (63 - exp as u32)) {
 				bail!("left shift would overflow")
 			}
+			#[expect(
+				clippy::cast_precision_loss,
+				clippy::cast_sign_loss,
+				reason = "checked as original impl"
+			)]
 			Val::try_num(base.wrapping_shl(exp as u32) as f64)?
 		}
 		(Num(v1), Rhs, Num(v2)) => {
 			if v2.get() < 0.0 {
 				bail!("shift by negative exponent")
 			}
+			#[expect(
+				clippy::cast_sign_loss,
+				clippy::cast_possible_truncation,
+				reason = "checked as original impl"
+			)]
 			let exp = ((v2.get() as i64) & 63) as u32;
+			#[expect(clippy::cast_precision_loss, reason = "checked as upstream impl")]
 			Val::try_num(v1.truncate_for_bitwise()?.wrapping_shr(exp) as f64)?
 		}
 

--- a/crates/jrsonnet-evaluator/src/integrations/serde.rs
+++ b/crates/jrsonnet-evaluator/src/integrations/serde.rs
@@ -69,12 +69,20 @@
 			where
 				E: de::Error,
 			{
+				#[expect(
+					clippy::cast_precision_loss,
+					reason = "this is how it works with stdlib functions"
+				)]
 				Ok(Val::Num(NumValue::new(v as f64).expect("no overflow")))
 			}
 			fn visit_u64<E>(self, v: u64) -> Result<Self::Value, E>
 			where
 				E: de::Error,
 			{
+				#[expect(
+					clippy::cast_precision_loss,
+					reason = "this is how it works with stdlib functions"
+				)]
 				Ok(Val::Num(NumValue::new(v as f64).expect("no overflow")))
 			}
 
@@ -161,6 +169,10 @@
 			Self::Num(n) => {
 				let n = n.get();
 				if n.fract() == 0.0 {
+					#[expect(
+						clippy::cast_possible_truncation,
+						reason = "no correct implementation is possible here; expected"
+					)]
 					let n = n as i64;
 					serializer.serialize_i64(n)
 				} else {

--- a/crates/jrsonnet-evaluator/src/obj/mod.rs
+++ b/crates/jrsonnet-evaluator/src/obj/mod.rs
@@ -792,6 +792,8 @@
 			key,
 		})
 	}
+
+	#[allow(dead_code, reason = "used in object ...rest destructuring")]
 	pub(crate) fn as_standalone(&self) -> StandaloneSuperCore {
 		StandaloneSuperCore {
 			sup: CoreIdx {

--- a/crates/jrsonnet-evaluator/src/stdlib/format.rs
+++ b/crates/jrsonnet-evaluator/src/stdlib/format.rs
@@ -1,5 +1,10 @@
 //! faster std.format impl
 #![allow(clippy::too_many_arguments)]
+#![expect(
+	clippy::cast_possible_truncation,
+	clippy::cast_sign_loss,
+	reason = "many safe integer casts, behavior on overflow is not specified"
+)]
 
 use jrsonnet_gcmodule::Trace;
 use jrsonnet_interner::IStr;

--- a/crates/jrsonnet-evaluator/src/trace/mod.rs
+++ b/crates/jrsonnet-evaluator/src/trace/mod.rs
@@ -129,6 +129,7 @@
 			} else {
 				false
 			};
+			#[expect(clippy::cast_possible_truncation, reason = "code is limited by 4gb")]
 			let mut location = path
 				.map_source_locations(&[offset as u32])
 				.into_iter()

--- a/crates/jrsonnet-evaluator/src/typed/conversions.rs
+++ b/crates/jrsonnet-evaluator/src/typed/conversions.rs
@@ -157,7 +157,9 @@
 	}
 }
 
+#[expect(clippy::cast_precision_loss, reason = "checked to not overflow")]
 pub const MAX_SAFE_INTEGER: f64 = ((1u64 << (f64::MANTISSA_DIGITS)) - 1) as f64;
+#[expect(clippy::cast_precision_loss, reason = "checked to not overflow")]
 pub const MIN_SAFE_INTEGER: f64 = (-((1i64 << (f64::MANTISSA_DIGITS)) - 1)) as f64;
 
 macro_rules! impl_int {
@@ -179,6 +181,7 @@
 								stringify!($ty)
 							)
 						}
+						#[allow(clippy::cast_sign_loss, clippy::cast_possible_truncation, reason = "checked by TYPE")]
 						Ok(n as Self)
 					}
 					_ => unreachable!(),
@@ -198,6 +201,7 @@
 macro_rules! impl_bounded_int {
 	($($name:ident = $ty:ty)*) => {$(
 		#[derive(Clone, Copy)]
+		#[allow(clippy::cast_possible_truncation, reason = "overflow is api misuse")]
 		pub struct $name<const MIN: $ty, const MAX: $ty>($ty);
 		impl<const MIN: $ty, const MAX: $ty> $name<MIN, MAX> {
 			pub const fn new(value: $ty) -> Option<$name<MIN, MAX>> {
@@ -219,6 +223,7 @@
 		}
 
 		impl<const MIN: $ty, const MAX: $ty> Typed for $name<MIN, MAX> {
+			#[allow(clippy::cast_possible_truncation, clippy::cast_precision_loss, reason = "overflow is api misuse")]
 			const TYPE: &'static ComplexValType =
 				&ComplexValType::BoundedNumber(
 					Some(MIN as f64),
@@ -239,6 +244,7 @@
 								stringify!($ty)
 							)
 						}
+						#[allow(clippy::cast_possible_truncation, clippy::cast_sign_loss, reason = "overflow is api misuse, the range is checked by TYPE")]
 						Ok(Self(n as $ty))
 					}
 					_ => unreachable!(),
@@ -318,6 +324,11 @@
 				if n.trunc() != n {
 					bail!("cannot convert number with fractional part to usize")
 				}
+				#[allow(
+					clippy::cast_possible_truncation,
+					clippy::cast_sign_loss,
+					reason = "the range is checked by TYPE"
+				)]
 				Ok(n as Self)
 			}
 			_ => unreachable!(),

--- a/crates/jrsonnet-evaluator/src/val.rs
+++ b/crates/jrsonnet-evaluator/src/val.rs
@@ -295,8 +295,10 @@
 				};
 				let mut get_idx = |pos: Option<i32>, default| {
 					match pos {
-						Some(v) if v < 0 => get_len().saturating_sub((-v) as usize),
+						#[expect(clippy::cast_sign_loss, reason = "abs value is used")]
+						Some(v) if v < 0 => get_len().saturating_sub((-v as isize) as usize),
 						// No need to clamp, as iterator interface is used
+						#[expect(clippy::cast_sign_loss, reason = "abs value is used")]
 						Some(v) => v as usize,
 						None => default,
 					}
@@ -322,6 +324,10 @@
 			Self::Arr(arr) => Ok(Self::Arr(arr.clone().slice(
 				index,
 				end,
+				#[expect(
+					clippy::cast_possible_truncation,
+					reason = "overflow will result with skip too large which would be equivalent"
+				)]
 				step.map(|v| NonZeroU32::new(v.value() as u32).expect("bounded != 0")),
 			))),
 		}
@@ -446,6 +452,7 @@
 		if self.0 < MIN_SAFE_INTEGER || self.0 > MAX_SAFE_INTEGER {
 			bail!("numberic value outside of safe integer range for bitwise operation");
 		}
+		#[expect(clippy::cast_possible_truncation, reason = "intended")]
 		Ok(self.0 as i64)
 	}
 }
@@ -520,6 +527,7 @@
 			type Error = ConvertNumValueError;
 			#[inline]
 			fn try_from(value: $ty) -> Result<Self, ConvertNumValueError> {
+				#[expect(clippy::cast_precision_loss, reason = "precision loss is explicitly handled")]
 				let value = value as f64;
 				if value < MIN_SAFE_INTEGER {
 					return Err(ConvertNumValueError::Underflow)

--- a/crates/jrsonnet-interner/src/inner.rs
+++ b/crates/jrsonnet-interner/src/inner.rs
@@ -67,7 +67,7 @@
 			.cast();
 			assert!(!data.is_null());
 			*data = InnerHeader::new(bytes.len().try_into().expect("bytes > 4GB"), is_utf8);
-			ptr::copy_nonoverlapping(bytes.as_ptr(), data.offset(1).cast::<u8>(), bytes.len());
+			ptr::copy_nonoverlapping(bytes.as_ptr(), data.add(1).cast::<u8>(), bytes.len());
 			Self(UnsafeCell::new(NonNull::new_unchecked(data)))
 		}
 	}
@@ -89,10 +89,7 @@
 		let size = unsafe { (*header).size };
 		// SAFETY: bytes after data is allocated to be exactly data.size in length
 		unsafe {
-			slice::from_raw_parts(
-				(*self.0.get()).as_ptr().offset(1).cast::<u8>(),
-				size as usize,
-			)
+			slice::from_raw_parts((*self.0.get()).as_ptr().add(1).cast::<u8>(), size as usize)
 		}
 	}
 
@@ -156,7 +153,7 @@
 	}
 	pub fn as_ptr(this: &Self) -> *const u8 {
 		// SAFETY: data is initialized
-		unsafe { (*this.0.get()).as_ptr().offset(1).cast() }
+		unsafe { (*this.0.get()).as_ptr().add(1).cast() }
 	}
 
 	pub fn strong_count(this: &Self) -> u32 {

--- a/crates/jrsonnet-ir-parser/src/lib.rs
+++ b/crates/jrsonnet-ir-parser/src/lib.rs
@@ -638,6 +638,7 @@
 	}
 }
 
+#[allow(clippy::too_many_lines)]
 fn expr_basic(p: &mut Parser<'_>) -> Result<Expr> {
 	if let Some(lit) = literal(p) {
 		return Ok(Expr::Literal(lit));
@@ -764,7 +765,6 @@
 		}
 
 		SyntaxKind::IDENT => {
-			let text = p.text();
 			let n = spanned(p, |p| {
 				let s: IStr = p.text().into();
 				p.eat_any();
@@ -1005,8 +1005,9 @@
 }
 
 pub fn string_to_expr(s: IStr, settings: &ParserSettings) -> Spanned<Expr> {
-	let len = s.len();
-	Spanned::new(Expr::Str(s), Span(settings.source.clone(), 0, len as u32))
+	let len = u32::try_from(s.len()).expect("code size is limited by 4gb");
+
+	Spanned::new(Expr::Str(s), Span(settings.source.clone(), 0, len))
 }
 
 #[cfg(test)]

--- a/crates/jrsonnet-lexer/src/lex.rs
+++ b/crates/jrsonnet-lexer/src/lex.rs
@@ -60,7 +60,10 @@
 			range: {
 				let Range { start, end } = self.inner.span();
 
-				Span(start as u32, end as u32)
+				Span(
+					u32::try_from(start).expect("code size is limited by 4gb"),
+					u32::try_from(end).expect("code size is limited by 4gb"),
+				)
 			},
 		})
 	}

--- a/crates/jrsonnet-stdlib/src/math.rs
+++ b/crates/jrsonnet-stdlib/src/math.rs
@@ -120,6 +120,7 @@
 		let lg = s.abs().log2();
 		let x = (lg - lg.floor() - 1.0).exp2();
 		let exp = lg.floor() + 1.0;
+		#[expect(clippy::cast_possible_truncation, reason = "exponent can fit in i16")]
 		(s.signum() * x, exp as i16)
 	}
 }

--- a/flake.nix
+++ b/flake.nix
@@ -66,6 +66,7 @@
               "clippy"
               "rustc"
               "rust-src"
+              "rust-analyzer"
             ])
             rustfmt
           ];