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.