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-rw-r--r--third_party/rust/naga/src/valid/expression.rs1452
1 files changed, 1452 insertions, 0 deletions
diff --git a/third_party/rust/naga/src/valid/expression.rs b/third_party/rust/naga/src/valid/expression.rs
new file mode 100644
index 0000000000..eb95c0e095
--- /dev/null
+++ b/third_party/rust/naga/src/valid/expression.rs
@@ -0,0 +1,1452 @@
+#[cfg(feature = "validate")]
+use super::{compose::validate_compose, FunctionInfo, ShaderStages, TypeFlags};
+#[cfg(feature = "validate")]
+use crate::arena::UniqueArena;
+
+use crate::{
+ arena::{BadHandle, Handle},
+ proc::{IndexableLengthError, ResolveError},
+};
+
+#[derive(Clone, Debug, thiserror::Error)]
+#[cfg_attr(test, derive(PartialEq))]
+pub enum ExpressionError {
+ #[error("Doesn't exist")]
+ DoesntExist,
+ #[error("Used by a statement before it was introduced into the scope by any of the dominating blocks")]
+ NotInScope,
+ #[error("Depends on {0:?}, which has not been processed yet")]
+ ForwardDependency(Handle<crate::Expression>),
+ #[error(transparent)]
+ BadDependency(#[from] BadHandle),
+ #[error("Base type {0:?} is not compatible with this expression")]
+ InvalidBaseType(Handle<crate::Expression>),
+ #[error("Accessing with index {0:?} can't be done")]
+ InvalidIndexType(Handle<crate::Expression>),
+ #[error("Accessing index {1:?} is out of {0:?} bounds")]
+ IndexOutOfBounds(Handle<crate::Expression>, crate::ScalarValue),
+ #[error("The expression {0:?} may only be indexed by a constant")]
+ IndexMustBeConstant(Handle<crate::Expression>),
+ #[error("Function argument {0:?} doesn't exist")]
+ FunctionArgumentDoesntExist(u32),
+ #[error("Loading of {0:?} can't be done")]
+ InvalidPointerType(Handle<crate::Expression>),
+ #[error("Array length of {0:?} can't be done")]
+ InvalidArrayType(Handle<crate::Expression>),
+ #[error("Splatting {0:?} can't be done")]
+ InvalidSplatType(Handle<crate::Expression>),
+ #[error("Swizzling {0:?} can't be done")]
+ InvalidVectorType(Handle<crate::Expression>),
+ #[error("Swizzle component {0:?} is outside of vector size {1:?}")]
+ InvalidSwizzleComponent(crate::SwizzleComponent, crate::VectorSize),
+ #[error(transparent)]
+ Compose(#[from] super::ComposeError),
+ #[error(transparent)]
+ IndexableLength(#[from] IndexableLengthError),
+ #[error("Operation {0:?} can't work with {1:?}")]
+ InvalidUnaryOperandType(crate::UnaryOperator, Handle<crate::Expression>),
+ #[error("Operation {0:?} can't work with {1:?} and {2:?}")]
+ InvalidBinaryOperandTypes(
+ crate::BinaryOperator,
+ Handle<crate::Expression>,
+ Handle<crate::Expression>,
+ ),
+ #[error("Selecting is not possible")]
+ InvalidSelectTypes,
+ #[error("Relational argument {0:?} is not a boolean vector")]
+ InvalidBooleanVector(Handle<crate::Expression>),
+ #[error("Relational argument {0:?} is not a float")]
+ InvalidFloatArgument(Handle<crate::Expression>),
+ #[error("Type resolution failed")]
+ Type(#[from] ResolveError),
+ #[error("Not a global variable")]
+ ExpectedGlobalVariable,
+ #[error("Not a global variable or a function argument")]
+ ExpectedGlobalOrArgument,
+ #[error("Calling an undeclared function {0:?}")]
+ CallToUndeclaredFunction(Handle<crate::Function>),
+ #[error("Needs to be an binding array instead of {0:?}")]
+ ExpectedBindingArrayType(Handle<crate::Type>),
+ #[error("Needs to be an image instead of {0:?}")]
+ ExpectedImageType(Handle<crate::Type>),
+ #[error("Needs to be an image instead of {0:?}")]
+ ExpectedSamplerType(Handle<crate::Type>),
+ #[error("Unable to operate on image class {0:?}")]
+ InvalidImageClass(crate::ImageClass),
+ #[error("Derivatives can only be taken from scalar and vector floats")]
+ InvalidDerivative,
+ #[error("Image array index parameter is misplaced")]
+ InvalidImageArrayIndex,
+ #[error("Inappropriate sample or level-of-detail index for texel access")]
+ InvalidImageOtherIndex,
+ #[error("Image array index type of {0:?} is not an integer scalar")]
+ InvalidImageArrayIndexType(Handle<crate::Expression>),
+ #[error("Image sample or level-of-detail index's type of {0:?} is not an integer scalar")]
+ InvalidImageOtherIndexType(Handle<crate::Expression>),
+ #[error("Image coordinate type of {1:?} does not match dimension {0:?}")]
+ InvalidImageCoordinateType(crate::ImageDimension, Handle<crate::Expression>),
+ #[error("Comparison sampling mismatch: image has class {image:?}, but the sampler is comparison={sampler}, and the reference was provided={has_ref}")]
+ ComparisonSamplingMismatch {
+ image: crate::ImageClass,
+ sampler: bool,
+ has_ref: bool,
+ },
+ #[error("Sample offset constant {1:?} doesn't match the image dimension {0:?}")]
+ InvalidSampleOffset(crate::ImageDimension, Handle<crate::Constant>),
+ #[error("Depth reference {0:?} is not a scalar float")]
+ InvalidDepthReference(Handle<crate::Expression>),
+ #[error("Depth sample level can only be Auto or Zero")]
+ InvalidDepthSampleLevel,
+ #[error("Gather level can only be Zero")]
+ InvalidGatherLevel,
+ #[error("Gather component {0:?} doesn't exist in the image")]
+ InvalidGatherComponent(crate::SwizzleComponent),
+ #[error("Gather can't be done for image dimension {0:?}")]
+ InvalidGatherDimension(crate::ImageDimension),
+ #[error("Sample level (exact) type {0:?} is not a scalar float")]
+ InvalidSampleLevelExactType(Handle<crate::Expression>),
+ #[error("Sample level (bias) type {0:?} is not a scalar float")]
+ InvalidSampleLevelBiasType(Handle<crate::Expression>),
+ #[error("Sample level (gradient) of {1:?} doesn't match the image dimension {0:?}")]
+ InvalidSampleLevelGradientType(crate::ImageDimension, Handle<crate::Expression>),
+ #[error("Unable to cast")]
+ InvalidCastArgument,
+ #[error("Invalid argument count for {0:?}")]
+ WrongArgumentCount(crate::MathFunction),
+ #[error("Argument [{1}] to {0:?} as expression {2:?} has an invalid type.")]
+ InvalidArgumentType(crate::MathFunction, u32, Handle<crate::Expression>),
+ #[error("Atomic result type can't be {0:?} of {1} bytes")]
+ InvalidAtomicResultType(crate::ScalarKind, crate::Bytes),
+ #[error("Shader requires capability {0:?}")]
+ MissingCapabilities(super::Capabilities),
+}
+
+#[cfg(feature = "validate")]
+struct ExpressionTypeResolver<'a> {
+ root: Handle<crate::Expression>,
+ types: &'a UniqueArena<crate::Type>,
+ info: &'a FunctionInfo,
+}
+
+#[cfg(feature = "validate")]
+impl<'a> ExpressionTypeResolver<'a> {
+ fn resolve(
+ &self,
+ handle: Handle<crate::Expression>,
+ ) -> Result<&'a crate::TypeInner, ExpressionError> {
+ if handle < self.root {
+ Ok(self.info[handle].ty.inner_with(self.types))
+ } else {
+ Err(ExpressionError::ForwardDependency(handle))
+ }
+ }
+}
+
+#[cfg(feature = "validate")]
+impl super::Validator {
+ pub(super) fn validate_expression(
+ &self,
+ root: Handle<crate::Expression>,
+ expression: &crate::Expression,
+ function: &crate::Function,
+ module: &crate::Module,
+ info: &FunctionInfo,
+ other_infos: &[FunctionInfo],
+ ) -> Result<ShaderStages, ExpressionError> {
+ use crate::{Expression as E, ScalarKind as Sk, TypeInner as Ti};
+
+ let resolver = ExpressionTypeResolver {
+ root,
+ types: &module.types,
+ info,
+ };
+
+ let stages = match *expression {
+ E::Access { base, index } => {
+ let base_type = resolver.resolve(base)?;
+ // See the documentation for `Expression::Access`.
+ let dynamic_indexing_restricted = match *base_type {
+ Ti::Vector { .. } => false,
+ Ti::Matrix { .. } | Ti::Array { .. } => true,
+ Ti::Pointer { .. }
+ | Ti::ValuePointer { size: Some(_), .. }
+ | Ti::BindingArray { .. } => false,
+ ref other => {
+ log::error!("Indexing of {:?}", other);
+ return Err(ExpressionError::InvalidBaseType(base));
+ }
+ };
+ match *resolver.resolve(index)? {
+ //TODO: only allow one of these
+ Ti::Scalar {
+ kind: Sk::Sint | Sk::Uint,
+ width: _,
+ } => {}
+ ref other => {
+ log::error!("Indexing by {:?}", other);
+ return Err(ExpressionError::InvalidIndexType(index));
+ }
+ }
+ if dynamic_indexing_restricted
+ && function.expressions[index].is_dynamic_index(module)
+ {
+ return Err(ExpressionError::IndexMustBeConstant(base));
+ }
+
+ // If we know both the length and the index, we can do the
+ // bounds check now.
+ if let crate::proc::IndexableLength::Known(known_length) =
+ base_type.indexable_length(module)?
+ {
+ if let E::Constant(k) = function.expressions[index] {
+ if let crate::Constant {
+ // We must treat specializable constants as unknown.
+ specialization: None,
+ // Non-scalar indices should have been caught above.
+ inner: crate::ConstantInner::Scalar { value, .. },
+ ..
+ } = module.constants[k]
+ {
+ match value {
+ crate::ScalarValue::Uint(u) if u >= known_length as u64 => {
+ return Err(ExpressionError::IndexOutOfBounds(base, value));
+ }
+ crate::ScalarValue::Sint(s)
+ if s < 0 || s >= known_length as i64 =>
+ {
+ return Err(ExpressionError::IndexOutOfBounds(base, value));
+ }
+ _ => (),
+ }
+ }
+ }
+ }
+
+ ShaderStages::all()
+ }
+ E::AccessIndex { base, index } => {
+ fn resolve_index_limit(
+ module: &crate::Module,
+ top: Handle<crate::Expression>,
+ ty: &crate::TypeInner,
+ top_level: bool,
+ ) -> Result<u32, ExpressionError> {
+ let limit = match *ty {
+ Ti::Vector { size, .. }
+ | Ti::ValuePointer {
+ size: Some(size), ..
+ } => size as u32,
+ Ti::Matrix { columns, .. } => columns as u32,
+ Ti::Array {
+ size: crate::ArraySize::Constant(handle),
+ ..
+ } => module.constants[handle].to_array_length().unwrap(),
+ Ti::Array { .. } | Ti::BindingArray { .. } => u32::MAX, // can't statically know, but need run-time checks
+ Ti::Pointer { base, .. } if top_level => {
+ resolve_index_limit(module, top, &module.types[base].inner, false)?
+ }
+ Ti::Struct { ref members, .. } => members.len() as u32,
+ ref other => {
+ log::error!("Indexing of {:?}", other);
+ return Err(ExpressionError::InvalidBaseType(top));
+ }
+ };
+ Ok(limit)
+ }
+
+ let limit = resolve_index_limit(module, base, resolver.resolve(base)?, true)?;
+ if index >= limit {
+ return Err(ExpressionError::IndexOutOfBounds(
+ base,
+ crate::ScalarValue::Uint(limit as _),
+ ));
+ }
+ ShaderStages::all()
+ }
+ E::Constant(handle) => {
+ let _ = module.constants.try_get(handle)?;
+ ShaderStages::all()
+ }
+ E::Splat { size: _, value } => match *resolver.resolve(value)? {
+ Ti::Scalar { .. } => ShaderStages::all(),
+ ref other => {
+ log::error!("Splat scalar type {:?}", other);
+ return Err(ExpressionError::InvalidSplatType(value));
+ }
+ },
+ E::Swizzle {
+ size,
+ vector,
+ pattern,
+ } => {
+ let vec_size = match *resolver.resolve(vector)? {
+ Ti::Vector { size: vec_size, .. } => vec_size,
+ ref other => {
+ log::error!("Swizzle vector type {:?}", other);
+ return Err(ExpressionError::InvalidVectorType(vector));
+ }
+ };
+ for &sc in pattern[..size as usize].iter() {
+ if sc as u8 >= vec_size as u8 {
+ return Err(ExpressionError::InvalidSwizzleComponent(sc, vec_size));
+ }
+ }
+ ShaderStages::all()
+ }
+ E::Compose { ref components, ty } => {
+ for &handle in components {
+ if handle >= root {
+ return Err(ExpressionError::ForwardDependency(handle));
+ }
+ }
+ validate_compose(
+ ty,
+ &module.constants,
+ &module.types,
+ components.iter().map(|&handle| info[handle].ty.clone()),
+ )?;
+ ShaderStages::all()
+ }
+ E::FunctionArgument(index) => {
+ if index >= function.arguments.len() as u32 {
+ return Err(ExpressionError::FunctionArgumentDoesntExist(index));
+ }
+ ShaderStages::all()
+ }
+ E::GlobalVariable(handle) => {
+ let _ = module.global_variables.try_get(handle)?;
+ ShaderStages::all()
+ }
+ E::LocalVariable(handle) => {
+ let _ = function.local_variables.try_get(handle)?;
+ ShaderStages::all()
+ }
+ E::Load { pointer } => {
+ match *resolver.resolve(pointer)? {
+ Ti::Pointer { base, .. }
+ if self.types[base.index()]
+ .flags
+ .contains(TypeFlags::SIZED | TypeFlags::DATA) => {}
+ Ti::ValuePointer { .. } => {}
+ ref other => {
+ log::error!("Loading {:?}", other);
+ return Err(ExpressionError::InvalidPointerType(pointer));
+ }
+ }
+ ShaderStages::all()
+ }
+ E::ImageSample {
+ image,
+ sampler,
+ gather,
+ coordinate,
+ array_index,
+ offset,
+ level,
+ depth_ref,
+ } => {
+ // check the validity of expressions
+ let image_ty = Self::global_var_ty(module, function, image)?;
+ let sampler_ty = Self::global_var_ty(module, function, sampler)?;
+
+ let comparison = match module.types[sampler_ty].inner {
+ Ti::Sampler { comparison } => comparison,
+ _ => return Err(ExpressionError::ExpectedSamplerType(sampler_ty)),
+ };
+
+ let (class, dim) = match module.types[image_ty].inner {
+ Ti::Image {
+ class,
+ arrayed,
+ dim,
+ } => {
+ // check the array property
+ if arrayed != array_index.is_some() {
+ return Err(ExpressionError::InvalidImageArrayIndex);
+ }
+ if let Some(expr) = array_index {
+ match *resolver.resolve(expr)? {
+ Ti::Scalar {
+ kind: Sk::Sint,
+ width: _,
+ } => {}
+ _ => return Err(ExpressionError::InvalidImageArrayIndexType(expr)),
+ }
+ }
+ (class, dim)
+ }
+ _ => return Err(ExpressionError::ExpectedImageType(image_ty)),
+ };
+
+ // check sampling and comparison properties
+ let image_depth = match class {
+ crate::ImageClass::Sampled {
+ kind: crate::ScalarKind::Float,
+ multi: false,
+ } => false,
+ crate::ImageClass::Depth { multi: false } => true,
+ _ => return Err(ExpressionError::InvalidImageClass(class)),
+ };
+ if comparison != depth_ref.is_some() || (comparison && !image_depth) {
+ return Err(ExpressionError::ComparisonSamplingMismatch {
+ image: class,
+ sampler: comparison,
+ has_ref: depth_ref.is_some(),
+ });
+ }
+
+ // check texture coordinates type
+ let num_components = match dim {
+ crate::ImageDimension::D1 => 1,
+ crate::ImageDimension::D2 => 2,
+ crate::ImageDimension::D3 | crate::ImageDimension::Cube => 3,
+ };
+ match *resolver.resolve(coordinate)? {
+ Ti::Scalar {
+ kind: Sk::Float, ..
+ } if num_components == 1 => {}
+ Ti::Vector {
+ size,
+ kind: Sk::Float,
+ ..
+ } if size as u32 == num_components => {}
+ _ => return Err(ExpressionError::InvalidImageCoordinateType(dim, coordinate)),
+ }
+
+ // check constant offset
+ if let Some(const_handle) = offset {
+ let good = match module.constants[const_handle].inner {
+ crate::ConstantInner::Scalar {
+ width: _,
+ value: crate::ScalarValue::Sint(_),
+ } => num_components == 1,
+ crate::ConstantInner::Scalar { .. } => false,
+ crate::ConstantInner::Composite { ty, .. } => {
+ match module.types[ty].inner {
+ Ti::Vector {
+ size,
+ kind: Sk::Sint,
+ ..
+ } => size as u32 == num_components,
+ _ => false,
+ }
+ }
+ };
+ if !good {
+ return Err(ExpressionError::InvalidSampleOffset(dim, const_handle));
+ }
+ }
+
+ // check depth reference type
+ if let Some(expr) = depth_ref {
+ match *resolver.resolve(expr)? {
+ Ti::Scalar {
+ kind: Sk::Float, ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidDepthReference(expr)),
+ }
+ match level {
+ crate::SampleLevel::Auto | crate::SampleLevel::Zero => {}
+ _ => return Err(ExpressionError::InvalidDepthSampleLevel),
+ }
+ }
+
+ if let Some(component) = gather {
+ match dim {
+ crate::ImageDimension::D2 | crate::ImageDimension::Cube => {}
+ crate::ImageDimension::D1 | crate::ImageDimension::D3 => {
+ return Err(ExpressionError::InvalidGatherDimension(dim))
+ }
+ };
+ let max_component = match class {
+ crate::ImageClass::Depth { .. } => crate::SwizzleComponent::X,
+ _ => crate::SwizzleComponent::W,
+ };
+ if component > max_component {
+ return Err(ExpressionError::InvalidGatherComponent(component));
+ }
+ match level {
+ crate::SampleLevel::Zero => {}
+ _ => return Err(ExpressionError::InvalidGatherLevel),
+ }
+ }
+
+ // check level properties
+ match level {
+ crate::SampleLevel::Auto => ShaderStages::FRAGMENT,
+ crate::SampleLevel::Zero => ShaderStages::all(),
+ crate::SampleLevel::Exact(expr) => {
+ match *resolver.resolve(expr)? {
+ Ti::Scalar {
+ kind: Sk::Float, ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidSampleLevelExactType(expr)),
+ }
+ ShaderStages::all()
+ }
+ crate::SampleLevel::Bias(expr) => {
+ match *resolver.resolve(expr)? {
+ Ti::Scalar {
+ kind: Sk::Float, ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidSampleLevelBiasType(expr)),
+ }
+ ShaderStages::all()
+ }
+ crate::SampleLevel::Gradient { x, y } => {
+ match *resolver.resolve(x)? {
+ Ti::Scalar {
+ kind: Sk::Float, ..
+ } if num_components == 1 => {}
+ Ti::Vector {
+ size,
+ kind: Sk::Float,
+ ..
+ } if size as u32 == num_components => {}
+ _ => {
+ return Err(ExpressionError::InvalidSampleLevelGradientType(dim, x))
+ }
+ }
+ match *resolver.resolve(y)? {
+ Ti::Scalar {
+ kind: Sk::Float, ..
+ } if num_components == 1 => {}
+ Ti::Vector {
+ size,
+ kind: Sk::Float,
+ ..
+ } if size as u32 == num_components => {}
+ _ => {
+ return Err(ExpressionError::InvalidSampleLevelGradientType(dim, y))
+ }
+ }
+ ShaderStages::all()
+ }
+ }
+ }
+ E::ImageLoad {
+ image,
+ coordinate,
+ array_index,
+ sample,
+ level,
+ } => {
+ let ty = Self::global_var_ty(module, function, image)?;
+ match module.types[ty].inner {
+ Ti::Image {
+ class,
+ arrayed,
+ dim,
+ } => {
+ match resolver.resolve(coordinate)?.image_storage_coordinates() {
+ Some(coord_dim) if coord_dim == dim => {}
+ _ => {
+ return Err(ExpressionError::InvalidImageCoordinateType(
+ dim, coordinate,
+ ))
+ }
+ };
+ if arrayed != array_index.is_some() {
+ return Err(ExpressionError::InvalidImageArrayIndex);
+ }
+ if let Some(expr) = array_index {
+ match *resolver.resolve(expr)? {
+ Ti::Scalar {
+ kind: Sk::Sint,
+ width: _,
+ } => {}
+ _ => return Err(ExpressionError::InvalidImageArrayIndexType(expr)),
+ }
+ }
+
+ match (sample, class.is_multisampled()) {
+ (None, false) => {}
+ (Some(sample), true) => {
+ if resolver.resolve(sample)?.scalar_kind() != Some(Sk::Sint) {
+ return Err(ExpressionError::InvalidImageOtherIndexType(
+ sample,
+ ));
+ }
+ }
+ _ => {
+ return Err(ExpressionError::InvalidImageOtherIndex);
+ }
+ }
+
+ match (level, class.is_mipmapped()) {
+ (None, false) => {}
+ (Some(level), true) => {
+ if resolver.resolve(level)?.scalar_kind() != Some(Sk::Sint) {
+ return Err(ExpressionError::InvalidImageOtherIndexType(level));
+ }
+ }
+ _ => {
+ return Err(ExpressionError::InvalidImageOtherIndex);
+ }
+ }
+ }
+ _ => return Err(ExpressionError::ExpectedImageType(ty)),
+ }
+ ShaderStages::all()
+ }
+ E::ImageQuery { image, query } => {
+ let ty = Self::global_var_ty(module, function, image)?;
+ match module.types[ty].inner {
+ Ti::Image { class, arrayed, .. } => {
+ let good = match query {
+ crate::ImageQuery::NumLayers => arrayed,
+ crate::ImageQuery::Size { level: None } => true,
+ crate::ImageQuery::Size { level: Some(_) }
+ | crate::ImageQuery::NumLevels => class.is_mipmapped(),
+ crate::ImageQuery::NumSamples => class.is_multisampled(),
+ };
+ if !good {
+ return Err(ExpressionError::InvalidImageClass(class));
+ }
+ }
+ _ => return Err(ExpressionError::ExpectedImageType(ty)),
+ }
+ ShaderStages::all()
+ }
+ E::Unary { op, expr } => {
+ use crate::UnaryOperator as Uo;
+ let inner = resolver.resolve(expr)?;
+ match (op, inner.scalar_kind()) {
+ (_, Some(Sk::Sint | Sk::Bool))
+ //TODO: restrict Negate for bools?
+ | (Uo::Negate, Some(Sk::Float))
+ | (Uo::Not, Some(Sk::Uint)) => {}
+ other => {
+ log::error!("Op {:?} kind {:?}", op, other);
+ return Err(ExpressionError::InvalidUnaryOperandType(op, expr));
+ }
+ }
+ ShaderStages::all()
+ }
+ E::Binary { op, left, right } => {
+ use crate::BinaryOperator as Bo;
+ let left_inner = resolver.resolve(left)?;
+ let right_inner = resolver.resolve(right)?;
+ let good = match op {
+ Bo::Add | Bo::Subtract => match *left_inner {
+ Ti::Scalar { kind, .. } | Ti::Vector { kind, .. } => match kind {
+ Sk::Uint | Sk::Sint | Sk::Float => left_inner == right_inner,
+ Sk::Bool => false,
+ },
+ Ti::Matrix { .. } => left_inner == right_inner,
+ _ => false,
+ },
+ Bo::Divide | Bo::Modulo => match *left_inner {
+ Ti::Scalar { kind, .. } | Ti::Vector { kind, .. } => match kind {
+ Sk::Uint | Sk::Sint | Sk::Float => left_inner == right_inner,
+ Sk::Bool => false,
+ },
+ _ => false,
+ },
+ Bo::Multiply => {
+ let kind_allowed = match left_inner.scalar_kind() {
+ Some(Sk::Uint | Sk::Sint | Sk::Float) => true,
+ Some(Sk::Bool) | None => false,
+ };
+ let types_match = match (left_inner, right_inner) {
+ // Straight scalar and mixed scalar/vector.
+ (&Ti::Scalar { kind: kind1, .. }, &Ti::Scalar { kind: kind2, .. })
+ | (&Ti::Vector { kind: kind1, .. }, &Ti::Scalar { kind: kind2, .. })
+ | (&Ti::Scalar { kind: kind1, .. }, &Ti::Vector { kind: kind2, .. }) => {
+ kind1 == kind2
+ }
+ // Scalar/matrix.
+ (
+ &Ti::Scalar {
+ kind: Sk::Float, ..
+ },
+ &Ti::Matrix { .. },
+ )
+ | (
+ &Ti::Matrix { .. },
+ &Ti::Scalar {
+ kind: Sk::Float, ..
+ },
+ ) => true,
+ // Vector/vector.
+ (
+ &Ti::Vector {
+ kind: kind1,
+ size: size1,
+ ..
+ },
+ &Ti::Vector {
+ kind: kind2,
+ size: size2,
+ ..
+ },
+ ) => kind1 == kind2 && size1 == size2,
+ // Matrix * vector.
+ (
+ &Ti::Matrix { columns, .. },
+ &Ti::Vector {
+ kind: Sk::Float,
+ size,
+ ..
+ },
+ ) => columns == size,
+ // Vector * matrix.
+ (
+ &Ti::Vector {
+ kind: Sk::Float,
+ size,
+ ..
+ },
+ &Ti::Matrix { rows, .. },
+ ) => size == rows,
+ (&Ti::Matrix { columns, .. }, &Ti::Matrix { rows, .. }) => {
+ columns == rows
+ }
+ _ => false,
+ };
+ let left_width = match *left_inner {
+ Ti::Scalar { width, .. }
+ | Ti::Vector { width, .. }
+ | Ti::Matrix { width, .. } => width,
+ _ => 0,
+ };
+ let right_width = match *right_inner {
+ Ti::Scalar { width, .. }
+ | Ti::Vector { width, .. }
+ | Ti::Matrix { width, .. } => width,
+ _ => 0,
+ };
+ kind_allowed && types_match && left_width == right_width
+ }
+ Bo::Equal | Bo::NotEqual => left_inner.is_sized() && left_inner == right_inner,
+ Bo::Less | Bo::LessEqual | Bo::Greater | Bo::GreaterEqual => {
+ match *left_inner {
+ Ti::Scalar { kind, .. } | Ti::Vector { kind, .. } => match kind {
+ Sk::Uint | Sk::Sint | Sk::Float => left_inner == right_inner,
+ Sk::Bool => false,
+ },
+ ref other => {
+ log::error!("Op {:?} left type {:?}", op, other);
+ false
+ }
+ }
+ }
+ Bo::LogicalAnd | Bo::LogicalOr => match *left_inner {
+ Ti::Scalar { kind: Sk::Bool, .. } | Ti::Vector { kind: Sk::Bool, .. } => {
+ left_inner == right_inner
+ }
+ ref other => {
+ log::error!("Op {:?} left type {:?}", op, other);
+ false
+ }
+ },
+ Bo::And | Bo::InclusiveOr => match *left_inner {
+ Ti::Scalar { kind, .. } | Ti::Vector { kind, .. } => match kind {
+ Sk::Bool | Sk::Sint | Sk::Uint => left_inner == right_inner,
+ Sk::Float => false,
+ },
+ ref other => {
+ log::error!("Op {:?} left type {:?}", op, other);
+ false
+ }
+ },
+ Bo::ExclusiveOr => match *left_inner {
+ Ti::Scalar { kind, .. } | Ti::Vector { kind, .. } => match kind {
+ Sk::Sint | Sk::Uint => left_inner == right_inner,
+ Sk::Bool | Sk::Float => false,
+ },
+ ref other => {
+ log::error!("Op {:?} left type {:?}", op, other);
+ false
+ }
+ },
+ Bo::ShiftLeft | Bo::ShiftRight => {
+ let (base_size, base_kind) = match *left_inner {
+ Ti::Scalar { kind, .. } => (Ok(None), kind),
+ Ti::Vector { size, kind, .. } => (Ok(Some(size)), kind),
+ ref other => {
+ log::error!("Op {:?} base type {:?}", op, other);
+ (Err(()), Sk::Bool)
+ }
+ };
+ let shift_size = match *right_inner {
+ Ti::Scalar { kind: Sk::Uint, .. } => Ok(None),
+ Ti::Vector {
+ size,
+ kind: Sk::Uint,
+ ..
+ } => Ok(Some(size)),
+ ref other => {
+ log::error!("Op {:?} shift type {:?}", op, other);
+ Err(())
+ }
+ };
+ match base_kind {
+ Sk::Sint | Sk::Uint => base_size.is_ok() && base_size == shift_size,
+ Sk::Float | Sk::Bool => false,
+ }
+ }
+ };
+ if !good {
+ log::error!(
+ "Left: {:?} of type {:?}",
+ function.expressions[left],
+ left_inner
+ );
+ log::error!(
+ "Right: {:?} of type {:?}",
+ function.expressions[right],
+ right_inner
+ );
+ return Err(ExpressionError::InvalidBinaryOperandTypes(op, left, right));
+ }
+ ShaderStages::all()
+ }
+ E::Select {
+ condition,
+ accept,
+ reject,
+ } => {
+ let accept_inner = resolver.resolve(accept)?;
+ let reject_inner = resolver.resolve(reject)?;
+ let condition_good = match *resolver.resolve(condition)? {
+ Ti::Scalar {
+ kind: Sk::Bool,
+ width: _,
+ } => {
+ // When `condition` is a single boolean, `accept` and
+ // `reject` can be vectors or scalars.
+ match *accept_inner {
+ Ti::Scalar { .. } | Ti::Vector { .. } => true,
+ _ => false,
+ }
+ }
+ Ti::Vector {
+ size,
+ kind: Sk::Bool,
+ width: _,
+ } => match *accept_inner {
+ Ti::Vector {
+ size: other_size, ..
+ } => size == other_size,
+ _ => false,
+ },
+ _ => false,
+ };
+ if !condition_good || accept_inner != reject_inner {
+ return Err(ExpressionError::InvalidSelectTypes);
+ }
+ ShaderStages::all()
+ }
+ E::Derivative { axis: _, expr } => {
+ match *resolver.resolve(expr)? {
+ Ti::Scalar {
+ kind: Sk::Float, ..
+ }
+ | Ti::Vector {
+ kind: Sk::Float, ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidDerivative),
+ }
+ ShaderStages::FRAGMENT
+ }
+ E::Relational { fun, argument } => {
+ use crate::RelationalFunction as Rf;
+ let argument_inner = resolver.resolve(argument)?;
+ match fun {
+ Rf::All | Rf::Any => match *argument_inner {
+ Ti::Vector { kind: Sk::Bool, .. } => {}
+ ref other => {
+ log::error!("All/Any of type {:?}", other);
+ return Err(ExpressionError::InvalidBooleanVector(argument));
+ }
+ },
+ Rf::IsNan | Rf::IsInf | Rf::IsFinite | Rf::IsNormal => match *argument_inner {
+ Ti::Scalar {
+ kind: Sk::Float, ..
+ }
+ | Ti::Vector {
+ kind: Sk::Float, ..
+ } => {}
+ ref other => {
+ log::error!("Float test of type {:?}", other);
+ return Err(ExpressionError::InvalidFloatArgument(argument));
+ }
+ },
+ }
+ ShaderStages::all()
+ }
+ E::Math {
+ fun,
+ arg,
+ arg1,
+ arg2,
+ arg3,
+ } => {
+ use crate::MathFunction as Mf;
+
+ let arg_ty = resolver.resolve(arg)?;
+ let arg1_ty = arg1.map(|expr| resolver.resolve(expr)).transpose()?;
+ let arg2_ty = arg2.map(|expr| resolver.resolve(expr)).transpose()?;
+ let arg3_ty = arg3.map(|expr| resolver.resolve(expr)).transpose()?;
+ match fun {
+ Mf::Abs => {
+ if arg1_ty.is_some() | arg2_ty.is_some() | arg3_ty.is_some() {
+ return Err(ExpressionError::WrongArgumentCount(fun));
+ }
+ let good = match *arg_ty {
+ Ti::Scalar { kind, .. } | Ti::Vector { kind, .. } => kind != Sk::Bool,
+ _ => false,
+ };
+ if !good {
+ return Err(ExpressionError::InvalidArgumentType(fun, 0, arg));
+ }
+ }
+ Mf::Min | Mf::Max => {
+ let arg1_ty = match (arg1_ty, arg2_ty, arg3_ty) {
+ (Some(ty1), None, None) => ty1,
+ _ => return Err(ExpressionError::WrongArgumentCount(fun)),
+ };
+ let good = match *arg_ty {
+ Ti::Scalar { kind, .. } | Ti::Vector { kind, .. } => kind != Sk::Bool,
+ _ => false,
+ };
+ if !good {
+ return Err(ExpressionError::InvalidArgumentType(fun, 0, arg));
+ }
+ if arg1_ty != arg_ty {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 1,
+ arg1.unwrap(),
+ ));
+ }
+ }
+ Mf::Clamp => {
+ let (arg1_ty, arg2_ty) = match (arg1_ty, arg2_ty, arg3_ty) {
+ (Some(ty1), Some(ty2), None) => (ty1, ty2),
+ _ => return Err(ExpressionError::WrongArgumentCount(fun)),
+ };
+ let good = match *arg_ty {
+ Ti::Scalar { kind, .. } | Ti::Vector { kind, .. } => kind != Sk::Bool,
+ _ => false,
+ };
+ if !good {
+ return Err(ExpressionError::InvalidArgumentType(fun, 0, arg));
+ }
+ if arg1_ty != arg_ty {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 1,
+ arg1.unwrap(),
+ ));
+ }
+ if arg2_ty != arg_ty {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 2,
+ arg2.unwrap(),
+ ));
+ }
+ }
+ Mf::Saturate
+ | Mf::Cos
+ | Mf::Cosh
+ | Mf::Sin
+ | Mf::Sinh
+ | Mf::Tan
+ | Mf::Tanh
+ | Mf::Acos
+ | Mf::Asin
+ | Mf::Atan
+ | Mf::Asinh
+ | Mf::Acosh
+ | Mf::Atanh
+ | Mf::Radians
+ | Mf::Degrees
+ | Mf::Ceil
+ | Mf::Floor
+ | Mf::Round
+ | Mf::Fract
+ | Mf::Trunc
+ | Mf::Exp
+ | Mf::Exp2
+ | Mf::Log
+ | Mf::Log2
+ | Mf::Length
+ | Mf::Sign
+ | Mf::Sqrt
+ | Mf::InverseSqrt => {
+ if arg1_ty.is_some() | arg2_ty.is_some() | arg3_ty.is_some() {
+ return Err(ExpressionError::WrongArgumentCount(fun));
+ }
+ match *arg_ty {
+ Ti::Scalar {
+ kind: Sk::Float, ..
+ }
+ | Ti::Vector {
+ kind: Sk::Float, ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ }
+ }
+ Mf::Atan2 | Mf::Pow | Mf::Distance | Mf::Step => {
+ let arg1_ty = match (arg1_ty, arg2_ty, arg3_ty) {
+ (Some(ty1), None, None) => ty1,
+ _ => return Err(ExpressionError::WrongArgumentCount(fun)),
+ };
+ match *arg_ty {
+ Ti::Scalar {
+ kind: Sk::Float, ..
+ }
+ | Ti::Vector {
+ kind: Sk::Float, ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ }
+ if arg1_ty != arg_ty {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 1,
+ arg1.unwrap(),
+ ));
+ }
+ }
+ Mf::Modf | Mf::Frexp | Mf::Ldexp => {
+ let arg1_ty = match (arg1_ty, arg2_ty, arg3_ty) {
+ (Some(ty1), None, None) => ty1,
+ _ => return Err(ExpressionError::WrongArgumentCount(fun)),
+ };
+ let (size0, width0) = match *arg_ty {
+ Ti::Scalar {
+ kind: Sk::Float,
+ width,
+ } => (None, width),
+ Ti::Vector {
+ kind: Sk::Float,
+ size,
+ width,
+ } => (Some(size), width),
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ };
+ let good = match *arg1_ty {
+ Ti::Pointer { base, space: _ } => module.types[base].inner == *arg_ty,
+ Ti::ValuePointer {
+ size,
+ kind: Sk::Float,
+ width,
+ space: _,
+ } => size == size0 && width == width0,
+ _ => false,
+ };
+ if !good {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 1,
+ arg1.unwrap(),
+ ));
+ }
+ }
+ Mf::Dot => {
+ let arg1_ty = match (arg1_ty, arg2_ty, arg3_ty) {
+ (Some(ty1), None, None) => ty1,
+ _ => return Err(ExpressionError::WrongArgumentCount(fun)),
+ };
+ match *arg_ty {
+ Ti::Vector {
+ kind: Sk::Float | Sk::Sint | Sk::Uint,
+ ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ }
+ if arg1_ty != arg_ty {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 1,
+ arg1.unwrap(),
+ ));
+ }
+ }
+ Mf::Outer | Mf::Cross | Mf::Reflect => {
+ let arg1_ty = match (arg1_ty, arg2_ty, arg3_ty) {
+ (Some(ty1), None, None) => ty1,
+ _ => return Err(ExpressionError::WrongArgumentCount(fun)),
+ };
+ match *arg_ty {
+ Ti::Vector {
+ kind: Sk::Float, ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ }
+ if arg1_ty != arg_ty {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 1,
+ arg1.unwrap(),
+ ));
+ }
+ }
+ Mf::Refract => {
+ let (arg1_ty, arg2_ty) = match (arg1_ty, arg2_ty, arg3_ty) {
+ (Some(ty1), Some(ty2), None) => (ty1, ty2),
+ _ => return Err(ExpressionError::WrongArgumentCount(fun)),
+ };
+
+ match *arg_ty {
+ Ti::Vector {
+ kind: Sk::Float, ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ }
+
+ if arg1_ty != arg_ty {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 1,
+ arg1.unwrap(),
+ ));
+ }
+
+ match (arg_ty, arg2_ty) {
+ (
+ &Ti::Vector {
+ width: vector_width,
+ ..
+ },
+ &Ti::Scalar {
+ width: scalar_width,
+ kind: Sk::Float,
+ },
+ ) if vector_width == scalar_width => {}
+ _ => {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 2,
+ arg2.unwrap(),
+ ))
+ }
+ }
+ }
+ Mf::Normalize => {
+ if arg1_ty.is_some() | arg2_ty.is_some() | arg3_ty.is_some() {
+ return Err(ExpressionError::WrongArgumentCount(fun));
+ }
+ match *arg_ty {
+ Ti::Vector {
+ kind: Sk::Float, ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ }
+ }
+ Mf::FaceForward | Mf::Fma | Mf::SmoothStep => {
+ let (arg1_ty, arg2_ty) = match (arg1_ty, arg2_ty, arg3_ty) {
+ (Some(ty1), Some(ty2), None) => (ty1, ty2),
+ _ => return Err(ExpressionError::WrongArgumentCount(fun)),
+ };
+ match *arg_ty {
+ Ti::Scalar {
+ kind: Sk::Float, ..
+ }
+ | Ti::Vector {
+ kind: Sk::Float, ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ }
+ if arg1_ty != arg_ty {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 1,
+ arg1.unwrap(),
+ ));
+ }
+ if arg2_ty != arg_ty {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 2,
+ arg2.unwrap(),
+ ));
+ }
+ }
+ Mf::Mix => {
+ let (arg1_ty, arg2_ty) = match (arg1_ty, arg2_ty, arg3_ty) {
+ (Some(ty1), Some(ty2), None) => (ty1, ty2),
+ _ => return Err(ExpressionError::WrongArgumentCount(fun)),
+ };
+ let arg_width = match *arg_ty {
+ Ti::Scalar {
+ kind: Sk::Float,
+ width,
+ }
+ | Ti::Vector {
+ kind: Sk::Float,
+ width,
+ ..
+ } => width,
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ };
+ if arg1_ty != arg_ty {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 1,
+ arg1.unwrap(),
+ ));
+ }
+ // the last argument can always be a scalar
+ match *arg2_ty {
+ Ti::Scalar {
+ kind: Sk::Float,
+ width,
+ } if width == arg_width => {}
+ _ if arg2_ty == arg_ty => {}
+ _ => {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 2,
+ arg2.unwrap(),
+ ));
+ }
+ }
+ }
+ Mf::Inverse | Mf::Determinant => {
+ if arg1_ty.is_some() | arg2_ty.is_some() | arg3_ty.is_some() {
+ return Err(ExpressionError::WrongArgumentCount(fun));
+ }
+ let good = match *arg_ty {
+ Ti::Matrix { columns, rows, .. } => columns == rows,
+ _ => false,
+ };
+ if !good {
+ return Err(ExpressionError::InvalidArgumentType(fun, 0, arg));
+ }
+ }
+ Mf::Transpose => {
+ if arg1_ty.is_some() | arg2_ty.is_some() | arg3_ty.is_some() {
+ return Err(ExpressionError::WrongArgumentCount(fun));
+ }
+ match *arg_ty {
+ Ti::Matrix { .. } => {}
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ }
+ }
+ Mf::CountOneBits | Mf::ReverseBits | Mf::FindLsb | Mf::FindMsb => {
+ if arg1_ty.is_some() | arg2_ty.is_some() | arg3_ty.is_some() {
+ return Err(ExpressionError::WrongArgumentCount(fun));
+ }
+ match *arg_ty {
+ Ti::Scalar {
+ kind: Sk::Sint | Sk::Uint,
+ ..
+ }
+ | Ti::Vector {
+ kind: Sk::Sint | Sk::Uint,
+ ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ }
+ }
+ Mf::InsertBits => {
+ let (arg1_ty, arg2_ty, arg3_ty) = match (arg1_ty, arg2_ty, arg3_ty) {
+ (Some(ty1), Some(ty2), Some(ty3)) => (ty1, ty2, ty3),
+ _ => return Err(ExpressionError::WrongArgumentCount(fun)),
+ };
+ match *arg_ty {
+ Ti::Scalar {
+ kind: Sk::Sint | Sk::Uint,
+ ..
+ }
+ | Ti::Vector {
+ kind: Sk::Sint | Sk::Uint,
+ ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ }
+ if arg1_ty != arg_ty {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 1,
+ arg1.unwrap(),
+ ));
+ }
+ match *arg2_ty {
+ Ti::Scalar { kind: Sk::Uint, .. } => {}
+ _ => {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 2,
+ arg2.unwrap(),
+ ))
+ }
+ }
+ match *arg3_ty {
+ Ti::Scalar { kind: Sk::Uint, .. } => {}
+ _ => {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 2,
+ arg3.unwrap(),
+ ))
+ }
+ }
+ }
+ Mf::ExtractBits => {
+ let (arg1_ty, arg2_ty) = match (arg1_ty, arg2_ty, arg3_ty) {
+ (Some(ty1), Some(ty2), None) => (ty1, ty2),
+ _ => return Err(ExpressionError::WrongArgumentCount(fun)),
+ };
+ match *arg_ty {
+ Ti::Scalar {
+ kind: Sk::Sint | Sk::Uint,
+ ..
+ }
+ | Ti::Vector {
+ kind: Sk::Sint | Sk::Uint,
+ ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ }
+ match *arg1_ty {
+ Ti::Scalar { kind: Sk::Uint, .. } => {}
+ _ => {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 2,
+ arg1.unwrap(),
+ ))
+ }
+ }
+ match *arg2_ty {
+ Ti::Scalar { kind: Sk::Uint, .. } => {}
+ _ => {
+ return Err(ExpressionError::InvalidArgumentType(
+ fun,
+ 2,
+ arg2.unwrap(),
+ ))
+ }
+ }
+ }
+ Mf::Pack2x16unorm | Mf::Pack2x16snorm | Mf::Pack2x16float => {
+ if arg1_ty.is_some() | arg2_ty.is_some() | arg3_ty.is_some() {
+ return Err(ExpressionError::WrongArgumentCount(fun));
+ }
+ match *arg_ty {
+ Ti::Vector {
+ size: crate::VectorSize::Bi,
+ kind: Sk::Float,
+ ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ }
+ }
+ Mf::Pack4x8snorm | Mf::Pack4x8unorm => {
+ if arg1_ty.is_some() | arg2_ty.is_some() | arg3_ty.is_some() {
+ return Err(ExpressionError::WrongArgumentCount(fun));
+ }
+ match *arg_ty {
+ Ti::Vector {
+ size: crate::VectorSize::Quad,
+ kind: Sk::Float,
+ ..
+ } => {}
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ }
+ }
+ Mf::Unpack2x16float
+ | Mf::Unpack2x16snorm
+ | Mf::Unpack2x16unorm
+ | Mf::Unpack4x8snorm
+ | Mf::Unpack4x8unorm => {
+ if arg1_ty.is_some() | arg2_ty.is_some() | arg3_ty.is_some() {
+ return Err(ExpressionError::WrongArgumentCount(fun));
+ }
+ match *arg_ty {
+ Ti::Scalar { kind: Sk::Uint, .. } => {}
+ _ => return Err(ExpressionError::InvalidArgumentType(fun, 0, arg)),
+ }
+ }
+ }
+ ShaderStages::all()
+ }
+ E::As {
+ expr,
+ kind,
+ convert,
+ } => {
+ let base_width = match *resolver.resolve(expr)? {
+ crate::TypeInner::Scalar { width, .. }
+ | crate::TypeInner::Vector { width, .. }
+ | crate::TypeInner::Matrix { width, .. } => width,
+ _ => return Err(ExpressionError::InvalidCastArgument),
+ };
+ let width = convert.unwrap_or(base_width);
+ if !self.check_width(kind, width) {
+ return Err(ExpressionError::InvalidCastArgument);
+ }
+ ShaderStages::all()
+ }
+ E::CallResult(function) => other_infos[function.index()].available_stages,
+ E::AtomicResult {
+ kind,
+ width,
+ comparison: _,
+ } => {
+ let good = match kind {
+ crate::ScalarKind::Uint | crate::ScalarKind::Sint => {
+ self.check_width(kind, width)
+ }
+ _ => false,
+ };
+ if !good {
+ return Err(ExpressionError::InvalidAtomicResultType(kind, width));
+ }
+ ShaderStages::all()
+ }
+ E::ArrayLength(expr) => match *resolver.resolve(expr)? {
+ Ti::Pointer { base, .. } => {
+ let base_ty = resolver.types.get_handle(base)?;
+ if let Ti::Array {
+ size: crate::ArraySize::Dynamic,
+ ..
+ } = base_ty.inner
+ {
+ ShaderStages::all()
+ } else {
+ return Err(ExpressionError::InvalidArrayType(expr));
+ }
+ }
+ ref other => {
+ log::error!("Array length of {:?}", other);
+ return Err(ExpressionError::InvalidArrayType(expr));
+ }
+ },
+ };
+ Ok(stages)
+ }
+
+ fn global_var_ty(
+ module: &crate::Module,
+ function: &crate::Function,
+ expr: Handle<crate::Expression>,
+ ) -> Result<Handle<crate::Type>, ExpressionError> {
+ use crate::Expression as Ex;
+
+ match function.expressions[expr] {
+ Ex::GlobalVariable(var_handle) => Ok(module.global_variables[var_handle].ty),
+ Ex::FunctionArgument(i) => Ok(function.arguments[i as usize].ty),
+ Ex::Access { base, .. } | Ex::AccessIndex { base, .. } => {
+ match function.expressions[base] {
+ Ex::GlobalVariable(var_handle) => {
+ let array_ty = module.global_variables[var_handle].ty;
+
+ match module.types[array_ty].inner {
+ crate::TypeInner::BindingArray { base, .. } => Ok(base),
+ _ => Err(ExpressionError::ExpectedBindingArrayType(array_ty)),
+ }
+ }
+ _ => Err(ExpressionError::ExpectedGlobalVariable),
+ }
+ }
+ _ => Err(ExpressionError::ExpectedGlobalVariable),
+ }
+ }
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-25 02:27:36 +0000