Struct wasmtime_environ::wasmparser::types::Types

pub struct Types { /* private fields */ }

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

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

Implementations

impl Types

pub fn type_from_id(&self, id: TypeId) -> Option<&TypeDef>

Gets a type based on its type id.

Returns None if the type id is unknown.

pub fn id_from_type_index(&self, index: u32) -> Option<TypeId>

Gets a type id from a type index.

Returns None if the type index is out of bounds.

pub fn type_at(&self, index: u32) -> Option<&TypeDef>

Gets a defined type at the given type index.

Returns None if the index is out of bounds.

pub fn func_type_at(&self, index: u32) -> Option<&FuncType>

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

Returns None if the index is out of bounds.

Additionally, this method always returns None for components because core function types are never present in a component’s type index space.

pub fn type_count(&self) -> usize

Gets the count of defined types.

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

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

Returns None if the index is out of bounds.

pub fn table_count(&self) -> usize

Gets the count of imported and defined tables.

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

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

Returns None if the index is out of bounds.

pub fn memory_count(&self) -> usize

Gets the count of imported and defined memories.

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

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

Returns None if the index is out of bounds.

pub fn global_count(&self) -> usize

Gets the count of imported and defined globals.

pub fn tag_at(&self, index: u32) -> Option<&FuncType>

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

Returns None if the index is out of bounds.

pub fn tag_count(&self) -> usize

Gets the count of imported and defined tags.

pub fn function_at(&self, index: u32) -> Option<&FuncType>

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

Returns None if the index is out of bounds or when parsing a component and the function at the given index is not a core function type.

pub fn component_function_at(&self, index: u32) -> Option<&ComponentFuncType>

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

Returns None if the index is out of bounds or if the function at the given index is not a component function type.

pub fn function_count(&self) -> usize

Gets the count of imported and defined functions.

The count also includes aliased functions in components.

pub fn element_at(&self, index: u32) -> Option<Type>

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

Returns None if the index is out of bounds.

pub fn element_count(&self) -> usize

Gets the count of element segments.

pub fn module_at(&self, index: u32) -> Option<&ModuleType>

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

Returns None if the index is out of bounds.

pub fn module_count(&self) -> usize

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

pub fn component_at(&self, index: u32) -> Option<&ComponentType>

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

Returns None if the index is out of bounds.

pub fn component_count(&self) -> usize

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

pub fn instance_at(&self, index: u32) -> Option<&InstanceType>

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

Returns None if the index is out of bounds or if the instance is not a component instance.

pub fn module_instance_at(&self, index: u32) -> Option<&ModuleType>

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

Returns None if the index is out of bounds or if the instance is not a module instance.

pub fn instance_count(&self) -> usize

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

pub fn value_at(&self, index: u32) -> Option<InterfaceTypeRef>

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

Returns None if the index is out of bounds.

pub fn value_count(&self) -> usize

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