Struct wasmtime_environ::wasmparser::types::Types

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pub struct Types { /* private fields */ }
Expand description

Represents the types known to a crate::Validator once validation has completed.

The type information is returned via the crate::Validator::end method.

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impl Types

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pub fn as_ref(&self) -> TypesRef<'_>

Gets a reference to this validation type information.

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pub fn get<T>(&self, id: T) -> Option<&<T as TypeIdentifier>::Data>
where T: TypeIdentifier,

Gets a type based on its type id.

Returns None if the type id is unknown.

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pub fn core_type_at(&self, index: u32) -> ComponentCoreTypeId

Gets a core WebAssembly type at the given type index.

Note that this is in contrast to TypesRef::component_type_at which gets a component type from its index.

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Panics if index is not a valid function index.

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pub fn component_any_type_at(&self, index: u32) -> ComponentAnyTypeId

Gets a component WebAssembly type at the given type index.

Note that this is in contrast to TypesRef::core_type_at which gets a core type from its index.

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Panics if index is not a valid type index.

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pub fn component_type_at(&self, index: u32) -> ComponentTypeId

Gets a component type at the given type index.

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Panics if index is not a valid component type index.

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pub fn component_defined_type_at(&self, index: u32) -> ComponentDefinedTypeId

Gets a component type from the given component type index.

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Panics if index is not a valid defined type index or if this type information represents a core module.

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pub fn type_count(&self) -> usize

Gets the count of core types.

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pub fn table_at(&self, index: u32) -> TableType

Gets the type of a table at the given table index.

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Panics if index is not a valid function index.

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pub fn table_count(&self) -> usize

Gets the count of imported and defined tables.

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pub fn memory_at(&self, index: u32) -> MemoryType

Gets the type of a memory at the given memory index.

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Panics if index is not a valid function index.

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pub fn memory_count(&self) -> u32

Gets the count of imported and defined memories.

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pub fn global_at(&self, index: u32) -> GlobalType

Gets the type of a global at the given global index.

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Panics if index is not a valid function index.

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pub fn global_count(&self) -> u32

Gets the count of imported and defined globals.

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pub fn tag_at(&self, index: u32) -> CoreTypeId

Gets the type of a tag at the given tag index.

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Panics if index is not a valid function index.

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pub fn tag_count(&self) -> u32

Gets the count of imported and defined tags.

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pub fn core_function_at(&self, index: u32) -> CoreTypeId

Gets the type of a core function at the given function index.

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Panics if index is not a valid function index.

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pub fn core_function_count(&self) -> u32

Gets the count of core functions defined so far.

Note that this includes imported functions, defined functions, and for components lowered/aliased functions.

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pub fn element_at(&self, index: u32) -> RefType

Gets the type of an element segment at the given element segment index.

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This will panic if the index provided is out of bounds.

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pub fn element_count(&self) -> u32

Gets the count of element segments.

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pub fn component_function_at(&self, index: u32) -> ComponentFuncTypeId

Gets the type of a component function at the given function index.

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This will panic if the index provided is out of bounds or if this type information represents a core module.

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pub fn component_function_count(&self) -> u32

Gets the count of imported, exported, or aliased component functions.

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pub fn module_at(&self, index: u32) -> ComponentCoreModuleTypeId

Gets the type of a module at the given module index.

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This will panic if the index provided is out of bounds or if this type information represents a core module.

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pub fn module_count(&self) -> usize

Gets the count of imported, exported, or aliased modules.

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pub fn core_instance_at(&self, index: u32) -> ComponentCoreInstanceTypeId

Gets the type of a module instance at the given module instance index.

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This will panic if the index provided is out of bounds or if this type information represents a core module.

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pub fn core_instance_count(&self) -> usize

Gets the count of imported, exported, or aliased core module instances.

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pub fn component_at(&self, index: u32) -> ComponentTypeId

Gets the type of a component at the given component index.

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This will panic if the index provided is out of bounds or if this type information represents a core module.

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pub fn component_count(&self) -> usize

Gets the count of imported, exported, or aliased components.

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pub fn component_instance_at(&self, index: u32) -> ComponentInstanceTypeId

Gets the type of an component instance at the given component instance index.

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This will panic if the index provided is out of bounds or if this type information represents a core module.

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pub fn component_instance_count(&self) -> usize

Gets the count of imported, exported, or aliased component instances.

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pub fn value_at(&self, index: u32) -> ComponentValType

Gets the type of a value at the given value index.

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This will panic if the index provided is out of bounds or if this type information represents a core module.

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pub fn value_count(&self) -> usize

Gets the count of imported, exported, or aliased values.

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pub fn entity_type_from_import(&self, import: &Import<'_>) -> Option<EntityType>

Gets the entity type from the given import.

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pub fn entity_type_from_export(&self, export: &Export<'_>) -> Option<EntityType>

Gets the entity type from the given export.

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pub fn component_entity_type_of_import( &self, name: &str ) -> Option<ComponentEntityType>

Gets the component entity type for the given component import name.

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pub fn component_entity_type_of_export( &self, name: &str ) -> Option<ComponentEntityType>

Gets the component entity type for the given component export name.

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pub fn peel_alias<T>(&self, ty: T) -> Option<T>
where T: Aliasable,

Attempts to lookup the type id that ty is an alias of.

Returns None if ty wasn’t listed as aliasing a prior type.

Trait Implementations§

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impl<T> Index<T> for Types
where T: TypeIdentifier,

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type Output = <T as TypeIdentifier>::Data

The returned type after indexing.
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fn index(&self, id: T) -> &<Types as Index<T>>::Output

Performs the indexing (container[index]) operation. Read more

Auto Trait Implementations§

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impl Freeze for Types

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impl RefUnwindSafe for Types

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impl Send for Types

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impl Sync for Types

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impl Unpin for Types

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impl UnwindSafe for Types

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.