Module wasmtime_crate Copy item path Source component Embedding API for the Component Model unix Unix-specific extension for the wasmtime crate. AnyRef An anyref GC reference. ArrayRef A reference to a GC-managed array instance. ArrayRefPre An allocator for a particular Wasm GC array type. ArrayType The type of a WebAssembly array. Caller A structure representing the caller’s context when creating a function
via Func::wrap CodeBuilder Builder-style structure used to create a Module CodeMemory Management of executable memory within a MmapVec CompiledModule A compiled wasm module, ready to be instantiated. Config Global configuration options used to create an Engine Engine An Engine which is a global context for compilation and management of wasm
modules. EngineWeak A weak reference to an Engine EqRef A reference to a GC-managed object that can be tested for equality. Error The Error type, a wrapper around a dynamic error type. Export An exported WebAssembly value. ExportType A descriptor for an exported WebAssembly value. ExternRef An opaque, GC-managed reference to some host data that can be passed to
WebAssembly. FieldType The type of a struct field or an array’s elements. FrameInfo Description of a frame in a backtrace for a WasmBacktrace FrameSymbol Debug information for a symbol that is attached to a FrameInfo Func A WebAssembly function which can be called. FuncType The type of a WebAssembly function. GcHeapOutOfMemory An error returned when attempting to allocate a GC-managed object, but the
GC heap is out of memory. Global A WebAssembly global value which can be read and written to. GlobalType A WebAssembly global descriptor. GuestProfiler Collects basic profiling data for a single WebAssembly guest. I31 A 31-bit integer. ImportType A descriptor for an imported value into a wasm module. Instance An instantiated WebAssembly module. InstancePre An instance, pre-instantiation, that is ready to be instantiated. Linker Structure used to link wasm modules/instances together. ManuallyRooted A rooted reference to a garbage-collected T with arbitrary lifetime. Memory A WebAssembly linear memory. MemoryAccessError Error for out of bounds Memory MemoryType A descriptor for a WebAssembly memory type. MemoryTypeBuilder A builder for MemoryType Module A compiled WebAssembly module, ready to be instantiated. ModuleExport Describes the location of an export in a module. NoExtern A reference to the abstract noextern heap value. NoFunc A reference to the abstract nofunc heap value. NoneRef A reference to the abstract none heap value. PoolConcurrencyLimitError An error returned when the pooling allocator cannot allocate a table,
memory, etc… because the maximum number of concurrent allocations for that
entity has been reached. PoolingAllocationConfig Configuration options used with InstanceAllocationStrategy::Pooling RefType Opaque references to data in the Wasm heap or to host data. ResourcesRequired A summary of the amount of resources required to instantiate a particular
ModuleComponent RootScope Nested rooting scopes. Rooted A scoped, rooted reference to a garbage-collected T. SharedMemory A constructor for externally-created shared memory. Store A Store StoreContext A temporary handle to a &Store<T> StoreContextMut A temporary handle to a &mut Store<T> StoreLimits Provides limits for a Store StoreLimitsBuilder Used to build StoreLimits StructRef A reference to a GC-managed struct instance. StructRefPre An allocator for a particular Wasm GC struct type. StructType The type of a WebAssembly struct. Table A WebAssembly table, or an array of values. TableType A descriptor for a table in a WebAssembly module. Tag A WebAssembly tag. TagType A descriptor for a tag in a WebAssembly module. TypedFunc A statically typed WebAssembly function. UnknownImportError Error for an unresolvable import. V128 Representation of a 128-bit vector type, v128, for WebAssembly. WasmBacktrace Representation of a backtrace of function frames in a WebAssembly module for
where an error happened. WasmCoreDump Representation of a core dump of a WebAssembly module CallHook Passed to the argument of Store::call_hook CodeHint Return value of CodeBuilder::hint Collector Possible garbage collector implementations for Wasm. Extern An external item to a WebAssembly module, or a list of what can possibly be
exported from a wasm module. ExternType A list of all possible types which can be externally referenced from a
WebAssembly module. Finality Indicator of whether a type is final or not. HeapType The heap types that can Wasm can have references to. InstanceAllocationStrategy Represents the module instance allocation strategy to use. ModuleVersionStrategy Configure the strategy used for versioning in serializing and deserializing crate::Module MpkEnabled Describe the tri-state configuration of memory protection keys (MPK). Mutability Indicator of whether a global value, struct’s field, or array type’s
elements are mutable or not. OptLevel Possible optimization levels for the Cranelift codegen backend. Precompiled Return value from the Engine::detect_precompiled ProfilingStrategy Select which profiling technique to support. Ref A reference. RegallocAlgorithm Possible register allocator algorithms for the Cranelift codegen backend. StorageType The storage type of a struct field or array element. Strategy Possible Compilation strategies for a wasm module. Trap UpdateDeadline What to do after returning from a callback when the engine epoch reaches
the deadline for a Store during execution of a function using that store. Val Possible runtime values that a WebAssembly module can either consume or
produce. ValType A list of all possible value types in WebAssembly. WaitResult Result of Memory::atomic_wait32 and Memory::atomic_wait64 WasmBacktraceDetails Select how wasm backtrace detailed information is handled. DEFAULT_INSTANCE_LIMIT Value returned by ResourceLimiter::instances DEFAULT_MEMORY_LIMIT Value returned by ResourceLimiter::memories DEFAULT_TABLE_LIMIT Value returned by ResourceLimiter::tables AsContext A trait used to get shared access to a Store AsContextMut A trait used to get exclusive mutable access to a Store CacheStore Implementation of an incremental compilation’s key/value cache store. CallHookHandler An object that can take callbacks when the runtime enters or exits hostcalls. CustomCodeMemory Interface implemented by an embedder to provide custom
implementations of code-memory protection and execute permissions. GcRef A common trait implemented by all garbage-collected reference types. IntoFunc Internal trait implemented for all arguments that can be passed to
Func::wrapLinker::func_wrap LinearMemory A linear memory. This trait provides an interface for raw memory buffers
which are used by wasmtime, e.g. inside [‘Memory’]. Such buffers are in
principle not thread safe. By implementing this trait together with
MemoryCreator, one can supply wasmtime with custom allocated host managed
memory. MemoryCreator A memory creator. Can be used to provide a memory creator
to wasmtime which supplies host managed memory. ResourceLimiter Used by hosts to limit resource consumption of instances. ResourceLimiterAsync Used by hosts to limit resource consumption of instances, blocking
asynchronously if necessary. RootedGcRef A trait implemented for GC references that are guaranteed to be rooted: StackCreator A stack creator. Can be used to provide a stack creator to wasmtime
which supplies stacks for async support. StackMemory A stack memory. This trait provides an interface for raw memory buffers
which are used by wasmtime inside of stacks which wasmtime executes
WebAssembly in for async support. By implementing this trait together
with StackCreator, one can supply wasmtime with custom allocated host
managed stacks. WasmParams A trait used for Func::typedTypedFunc WasmResults A trait used for Func::typedTypedFunc WasmRet A trait implemented for types which can be returned from closures passed to
Func::wrap WasmTy A trait implemented for types which can be arguments and results for
closures passed to Func::wrapFunc::typed WasmTyList Trait implemented for various tuples made up of types which implement
WasmTyFunc::wrap_innerHostContext::from_closure]. Result Result<T, Error>ValRaw A “raw” and unsafe representation of a WebAssembly value.