Crate wasmtime_types

Internal dependency of Wasmtime and Cranelift that defines types for WebAssembly.

Re-exports

pub use wasmparser;

Modules

prelude

Rust module prelude for Wasmtime crates.

Macros

wasm_unsupported

Return an Err(WasmError::Unsupported(msg)) where msg the string built by calling format! on the arguments to this macro.

Structs

ConstExpr

A constant expression.

DataIndex

Index type of a passive data segment inside the WebAssembly module.

DefinedFuncIndex

Index type of a defined function inside the WebAssembly module.

DefinedGlobalIndex

Index type of a defined global inside the WebAssembly module.

DefinedMemoryIndex

Index type of a defined memory inside the WebAssembly module.

DefinedTableIndex

Index type of a defined table inside the WebAssembly module.

ElemIndex

Index type of a passive element segment inside the WebAssembly module.

EngineInternedRecGroupIndex

Index type of a canonicalized recursive type group inside the whole engine (as opposed to canonicalized within just a single Wasm module).

FuncIndex

Index type of a function (imported or defined) inside the WebAssembly module.

Global

A WebAssembly global.

GlobalIndex

Index type of a global variable (imported or defined) inside the WebAssembly module.

Memory

WebAssembly linear memory.

MemoryIndex

Index type of a linear memory (imported or defined) inside the WebAssembly module.

ModuleInternedRecGroupIndex

Index type of a canonicalized recursive type group inside a WebAssembly module (as opposed to canonicalized within the whole engine).

ModuleInternedTypeIndex

A canonicalized type index for a type within a single WebAssembly module.

OwnedMemoryIndex

Index type of a defined memory inside the WebAssembly module.

RecGroupRelativeTypeIndex

A canonicalized type index referencing a type within a single recursion group from another type within that same recursion group.

SizeOverflow

StaticModuleIndex

Index into the global list of modules found within an entire component.

Table

WebAssembly table.

TableIndex

Index type of a table (imported or defined) inside the WebAssembly module.

Tag

WebAssembly event.

TagIndex

Index type of an event inside the WebAssembly module.

TypeIndex

Index type of a type (imported or defined) inside the WebAssembly module.

VMSharedTypeIndex

A canonicalized type index into an engine’s shared type registry.

WasmArrayType

A concrete array type.

WasmFieldType

The type of a struct field or array element.

WasmFuncType

WebAssembly function type – equivalent of wasmparser’s FuncType.

WasmRecGroup

A recursive type group.

WasmRefType

WebAssembly reference type – equivalent of wasmparser’s RefType

WasmStructType

A concrete struct type.

WasmSubType

A concrete, user-defined (or host-defined) Wasm type.

Enums

ConstOp

The subset of Wasm opcodes that are constant.

EngineOrModuleTypeIndex

An interned type index, either at the module or engine level.

EntityIndex

An index of an entity.

EntityType

A type of an item in a wasm module where an item is typically something that can be exported.

WasmCompositeType

A function, array, or struct type.

WasmError

A WebAssembly translation error.

WasmHeapTopType

A top heap type.

WasmHeapType

WebAssembly heap type – equivalent of wasmparser’s HeapType

WasmStorageType

Represents storage types introduced in the GC spec for array and struct fields.

WasmValType

WebAssembly value type – equivalent of wasmparser::ValType.

Constants

WASM32_MAX_SIZE

Maximum size, in bytes, of 32-bit memories (4G)

Traits

TypeConvert

Helpers used to convert a wasmparser type to a type in this crate.

TypeTrace

A trait for things that can trace all type-to-type edges, aka all type indices within this thing.

Type Aliases

WasmResult

A convenient alias for a Result that uses WasmError as the error type.