Crate walrus

The walrus WebAssembly transformations library.

Re-exports

pub use crate::ir::Local;

pub use crate::ir::LocalId;

pub use crate::ir::InstrLocId;

Modules

dot

Utilities for emitting GraphViz dot files.

ir

Intermediate representation for instructions.

passes

Passes over whole modules or individual functions.

Structs

CodeTransform

Code transformation records, which is used to transform DWARF debug entries.

Data

A data segment.

Element

A passive segment which contains a list of functions

Export

A named item exported from the wasm.

Function

A wasm function.

FunctionBuilder

Build instances of LocalFunction.

Global

A wasm global.

IdsToIndices

Maps our high-level identifiers to the raw indices they end up emitted at.

Import

A named item imported into the wasm.

ImportedFunction

An externally defined, imported function.

IndicesToIds

Maps from old indices in the original Wasm binary to walrus IDs.

InstrSeqBuilder

A builder returned by instruction sequence-construction methods to build up instructions within a block/loop/if-else over time.

LocalFunction

A function defined locally within the wasm module.

Memory

A memory in the wasm.

Module

A wasm module.

ModuleConfig

Configuration for a Module which currently affects parsing.

ModuleCustomSections

A collection of custom sections inside a Wasm module.

ModuleData

All passive data sections of a wasm module, used to initialize memories via various instructions.

ModuleDebugData

The DWARF debug section in input WebAssembly binary.

ModuleElements

All element segments of a wasm module, used to initialize anyfunc tables, used as function pointers.

ModuleExports

The set of exports in a module.

ModuleFunctions

The set of functions within a module.

ModuleGlobals

The set of globals in each function in this module.

ModuleImports

The set of imports in a module.

ModuleLocals

The set of locals in each function in this module.

ModuleMemories

The set of memories in this module.

ModuleProducers

Representation of the wasm custom section producers

ModuleTables

The set of tables in this module.

ModuleTypes

The set of de-duplicated types within a module.

RawCustomSection

A raw, unparsed custom section.

Table

A table in the wasm.

Type

A function type.

TypedCustomSectionId

The id of a CustomSection instance with a statically-known type in a ModuleCustomSections.

UntypedCustomSectionId

The id of some CustomSection instance in a ModuleCustomSections.

Enums

ConstExpr

A constant which is produced in WebAssembly, typically used in global initializers or element/data offsets.

DataKind

The kind of data segment: passive or active.

ElementItems

Represents the items of an element segment.

ElementKind

The kind of element segment.

ErrorKind

A leaf wasm error type.

ExportItem

An exported item.

FunctionKind

The local- or external-specific bits of a function.

GlobalKind

The different kinds of globals a wasm module can have

ImportKind

An imported item.

RefType

A reference type.

ValType

A value type.

Traits

CustomSection

A trait for implementing custom sections.

CustomSectionId

A common trait for custom section identifiers.

Type Aliases

DataId

A passive element segment identifier

ElementId

A passive element segment identifier

ExportId

The id of an export.

FuncParams

Parameter(s) to a function

FuncResults

Result(s) of a given function

FunctionId

A function identifier.

GlobalId

The id of a global.

ImportId

The id of an import.

MemoryId

The id of a memory.

Result

Either Ok(T) or Err(failure::Error). Result<T, Error>

TableId

The id of a table.

TypeId

An identifier for types.