binaryen
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116.0.0 • Public • Published

binaryen.js

binaryen.js is a port of Binaryen to the Web, allowing you to generate WebAssembly using a JavaScript API.

Build status npm version npm nightly version

Usage

$> npm install binaryen
import binaryen from "binaryen";

// Create a module with a single function
var myModule = new binaryen.Module();

myModule.addFunction("add", binaryen.createType([ binaryen.i32, binaryen.i32 ]), binaryen.i32, [ binaryen.i32 ],
  myModule.block(null, [
    myModule.local.set(2,
      myModule.i32.add(
        myModule.local.get(0, binaryen.i32),
        myModule.local.get(1, binaryen.i32)
      )
    ),
    myModule.return(
      myModule.local.get(2, binaryen.i32)
    )
  ])
);
myModule.addFunctionExport("add", "add");

// Optimize the module using default passes and levels
myModule.optimize();

// Validate the module
if (!myModule.validate())
  throw new Error("validation error");

// Generate text format and binary
var textData = myModule.emitText();
var wasmData = myModule.emitBinary();

// Example usage with the WebAssembly API
var compiled = new WebAssembly.Module(wasmData);
var instance = new WebAssembly.Instance(compiled, {});
console.log(instance.exports.add(41, 1));

The buildbot also publishes nightly versions once a day if there have been changes. The latest nightly can be installed through

$> npm install binaryen@nightly

or you can use one of the previous versions instead if necessary.

Usage with a CDN

  • From GitHub via jsDelivr:
    https://cdn.jsdelivr.net/gh/AssemblyScript/binaryen.js@VERSION/index.js
  • From npm via jsDelivr:
    https://cdn.jsdelivr.net/npm/binaryen@VERSION/index.js
  • From npm via unpkg:
    https://unpkg.com/binaryen@VERSION/index.js

Replace VERSION with a specific version or omit it (not recommended in production) to use main/latest.

Command line

The package includes Node.js builds of wasm-opt and wasm2js.

API

Please note that the Binaryen API is evolving fast and that definitions and documentation provided by the package tend to get out of sync despite our best efforts. It's a bot after all. If you rely on binaryen.js and spot an issue, please consider sending a PR our way by updating index.d.ts and README.md to reflect the current API.

Contents

Future features 🦄 might not be supported by all runtimes.

Types

  • none: Type
    The none type, e.g., void.

  • i32: Type
    32-bit integer type.

  • i64: Type
    64-bit integer type.

  • f32: Type
    32-bit float type.

  • f64: Type
    64-bit float (double) type.

  • v128: Type
    128-bit vector type. 🦄

  • funcref: Type
    A function reference. 🦄

  • externref: Type
    An external (host) reference. 🦄

  • anyref: Type
    Any (top type) reference. 🦄

  • eqref: Type
    Equal reference. 🦄

  • i31ref: Type
    i31 reference. 🦄

  • dataref: Type
    Data reference. 🦄

  • stringref: Type
    String reference. 🦄

  • stringview_wtf8: Type
    View of a string reference in WTF-8 encoding. 🦄

  • stringview_wtf16: Type
    View of a string reference in WTF-16 encoding. 🦄

  • stringview_iter: Type
    Iterator over the code points of a string reference. 🦄

  • unreachable: Type
    Special type indicating unreachable code when obtaining information about an expression.

  • auto: Type
    Special type used in Module#block exclusively. Lets the API figure out a block's result type automatically.

  • createType(types: Type[]): Type
    Creates a multi-value type from an array of types.

  • expandType(type: Type): Type[]
    Expands a multi-value type to an array of types.

Module construction

  • new Module()
    Constructs a new module.

  • parseText(text: string): Module
    Creates a module from Binaryen's s-expression text format (not official stack-style text format).

  • readBinary(data: Uint8Array): Module
    Creates a module from binary data.

Module manipulation

  • Module#addFunction(name: string, params: Type, results: Type, vars: Type[], body: ExpressionRef): FunctionRef
    Adds a function. vars indicate additional locals, in the given order.

  • Module#getFunction(name: string): FunctionRef
    Gets a function, by name,

  • Module#removeFunction(name: string): void
    Removes a function, by name.

  • Module#getNumFunctions(): number
    Gets the number of functions within the module.

  • Module#getFunctionByIndex(index: number): FunctionRef
    Gets the function at the specified index.

  • Module#addFunctionImport(internalName: string, externalModuleName: string, externalBaseName: string, params: Type, results: Type): void
    Adds a function import.

  • Module#addTableImport(internalName: string, externalModuleName: string, externalBaseName: string): void
    Adds a table import. There's just one table for now, using name "0".

  • Module#addMemoryImport(internalName: string, externalModuleName: string, externalBaseName: string): void
    Adds a memory import. There's just one memory for now, using name "0".

  • Module#addGlobalImport(internalName: string, externalModuleName: string, externalBaseName: string, globalType: Type): void
    Adds a global variable import. Imported globals must be immutable.

  • Module#addFunctionExport(internalName: string, externalName: string): ExportRef
    Adds a function export.

  • Module#addTableExport(internalName: string, externalName: string): ExportRef
    Adds a table export. There's just one table for now, using name "0".

  • Module#addMemoryExport(internalName: string, externalName: string): ExportRef
    Adds a memory export. There's just one memory for now, using name "0".

  • Module#addGlobalExport(internalName: string, externalName: string): ExportRef
    Adds a global variable export. Exported globals must be immutable.

  • Module#getNumExports(): number
    Gets the number of exports witin the module.

  • Module#getExportByIndex(index: number): ExportRef
    Gets the export at the specified index.

  • Module#removeExport(externalName: string): void
    Removes an export, by external name.

  • Module#addGlobal(name: string, type: Type, mutable: number, value: ExpressionRef): GlobalRef
    Adds a global instance variable.

  • Module#getGlobal(name: string): GlobalRef
    Gets a global, by name,

  • Module#removeGlobal(name: string): void
    Removes a global, by name.

  • Module#setMemory(initial: number, maximum: number, exportName: string | null, segments: MemorySegment[], shared?: boolean): void
    Sets the memory. There's just one memory for now, using name "0". Providing exportName also creates a memory export.

    • MemorySegment#offset: ExpressionRef
    • MemorySegment#data: Uint8Array
    • MemorySegment#passive: boolean
  • Module#getNumMemorySegments(): number
    Gets the number of memory segments within the module.

  • Module#getMemorySegmentInfoByIndex(index: number): MemorySegmentInfo
    Gets information about the memory segment at the specified index.

    • MemorySegmentInfo#offset: number
    • MemorySegmentInfo#data: Uint8Array
    • MemorySegmentInfo#passive: boolean
  • Module#setStart(start: FunctionRef): void
    Sets the start function.

  • Module#getFeatures(): Features
    Gets the WebAssembly features enabled for this module.

    Note that the return value may be a bitmask indicating multiple features. Possible feature flags are:

    • Features.MVP: Features
    • Features.Atomics: Features
    • Features.BulkMemory: Features
    • Features.MutableGlobals: Features
    • Features.NontrappingFPToInt: Features
    • Features.SignExt: Features
    • Features.SIMD128: Features
    • Features.ExceptionHandling: Features
    • Features.TailCall: Features
    • Features.ReferenceTypes: Features
    • Features.Multivalue: Features
    • Features.All: Features
  • Module#setFeatures(features: Features): void
    Sets the WebAssembly features enabled for this module.

  • Module#addCustomSection(name: string, contents: Uint8Array): void
    Adds a custom section to the binary.

  • Module#autoDrop(): void
    Enables automatic insertion of drop operations where needed. Lets you not worry about dropping when creating your code.

  • getFunctionInfo(ftype: FunctionRef: FunctionInfo
    Obtains information about a function.

    • FunctionInfo#name: string
    • FunctionInfo#module: string | null (if imported)
    • FunctionInfo#base: string | null (if imported)
    • FunctionInfo#params: Type
    • FunctionInfo#results: Type
    • FunctionInfo#vars: Type
    • FunctionInfo#body: ExpressionRef
  • getGlobalInfo(global: GlobalRef): GlobalInfo
    Obtains information about a global.

    • GlobalInfo#name: string
    • GlobalInfo#module: string | null (if imported)
    • GlobalInfo#base: string | null (if imported)
    • GlobalInfo#type: Type
    • GlobalInfo#mutable: boolean
    • GlobalInfo#init: ExpressionRef
  • getTableInfo(table: TableRef): TableInfo
    Obtains information about a table.

    • TableInfo#name: string
    • TableInfo#module: string | null (if imported)
    • TableInfo#base: string | null (if imported)
    • TableInfo#initial: number;
    • TableInfo#max?: number;
  • getExportInfo(export_: ExportRef): ExportInfo
    Obtains information about an export.

    • ExportInfo#kind: ExternalKind
    • ExportInfo#name: string
    • ExportInfo#value: string

    Possible ExternalKind values are:

    • ExternalFunction: ExternalKind
    • ExternalTable: ExternalKind
    • ExternalMemory: ExternalKind
    • ExternalGlobal: ExternalKind
    • ExternalTag: ExternalKind
  • getTagInfo(tag: TagRef): TagInfo
    Obtains information about a tag.

    • TagInfo#name: string
    • TagInfo#module: string | null (if imported)
    • TagInfo#base: string | null (if imported)
    • TagInfo#params: Type
    • TagInfo#results: Type
  • getSideEffects(expr: ExpressionRef, features: FeatureFlags): SideEffects
    Gets the side effects of the specified expression.

    • SideEffects.None: SideEffects
    • SideEffects.Branches: SideEffects
    • SideEffects.Calls: SideEffects
    • SideEffects.ReadsLocal: SideEffects
    • SideEffects.WritesLocal: SideEffects
    • SideEffects.ReadsGlobal: SideEffects
    • SideEffects.WritesGlobal: SideEffects
    • SideEffects.ReadsMemory: SideEffects
    • SideEffects.WritesMemory: SideEffects
    • SideEffects.ReadsTable: SideEffects
    • SideEffects.WritesTable: SideEffects
    • SideEffects.ImplicitTrap: SideEffects
    • SideEffects.IsAtomic: SideEffects
    • SideEffects.Throws: SideEffects
    • SideEffects.DanglingPop: SideEffects
    • SideEffects.TrapsNeverHappen: SideEffects
    • SideEffects.Any: SideEffects

Module validation

  • Module#validate(): boolean
    Validates the module. Returns true if valid, otherwise prints validation errors and returns false.

Module optimization

  • Module#optimize(): void
    Optimizes the module using the default optimization passes.

  • Module#optimizeFunction(func: FunctionRef | string): void
    Optimizes a single function using the default optimization passes.

  • Module#runPasses(passes: string[]): void
    Runs the specified passes on the module.

  • Module#runPassesOnFunction(func: FunctionRef | string, passes: string[]): void
    Runs the specified passes on a single function.

  • getOptimizeLevel(): number
    Gets the currently set optimize level. 0, 1, 2 correspond to -O0, -O1, -O2 (default), etc.

  • setOptimizeLevel(level: number): void
    Sets the optimization level to use. 0, 1, 2 correspond to -O0, -O1, -O2 (default), etc.

  • getShrinkLevel(): number
    Gets the currently set shrink level. 0, 1, 2 correspond to -O0, -Os (default), -Oz.

  • setShrinkLevel(level: number): void
    Sets the shrink level to use. 0, 1, 2 correspond to -O0, -Os (default), -Oz.

  • getDebugInfo(): boolean
    Gets whether generating debug information is currently enabled or not.

  • setDebugInfo(on: boolean): void
    Enables or disables debug information in emitted binaries.

  • getLowMemoryUnused(): boolean
    Gets whether the low 1K of memory can be considered unused when optimizing.

  • setLowMemoryUnused(on: boolean): void
    Enables or disables whether the low 1K of memory can be considered unused when optimizing.

  • getPassArgument(key: string): string | null
    Gets the value of the specified arbitrary pass argument.

  • setPassArgument(key: string, value: string | null): void
    Sets the value of the specified arbitrary pass argument. Removes the respective argument if value is null.

  • clearPassArguments(): void
    Clears all arbitrary pass arguments.

  • getAlwaysInlineMaxSize(): number
    Gets the function size at which we always inline.

  • setAlwaysInlineMaxSize(size: number): void
    Sets the function size at which we always inline.

  • getFlexibleInlineMaxSize(): number
    Gets the function size which we inline when functions are lightweight.

  • setFlexibleInlineMaxSize(size: number): void
    Sets the function size which we inline when functions are lightweight.

  • getOneCallerInlineMaxSize(): number
    Gets the function size which we inline when there is only one caller.

  • setOneCallerInlineMaxSize(size: number): void
    Sets the function size which we inline when there is only one caller.

Module creation

  • Module#emitBinary(): Uint8Array
    Returns the module in binary format.

  • Module#emitBinary(sourceMapUrl: string | null): BinaryWithSourceMap
    Returns the module in binary format with its source map. If sourceMapUrl is null, source map generation is skipped.

    • BinaryWithSourceMap#binary: Uint8Array
    • BinaryWithSourceMap#sourceMap: string | null
  • Module#emitText(): string
    Returns the module in Binaryen's s-expression text format (not official stack-style text format).

  • Module#emitStackIR(optimize?: boolean): string
    Returns the module in official stack-style text format.

  • Module#emitAsmjs(): string
    Returns the asm.js representation of the module.

  • Module#dispose(): void
    Releases the resources held by the module once it isn't needed anymore.

Expression construction

Control flow

  • Module#block(label: string | null, children: ExpressionRef[], resultType?: Type): ExpressionRef
    Creates a block. resultType defaults to none.

  • Module#if(condition: ExpressionRef, ifTrue: ExpressionRef, ifFalse?: ExpressionRef): ExpressionRef
    Creates an if or if/else combination.

  • Module#loop(label: string | null, body: ExpressionRef): ExpressionRef
    Creates a loop.

  • Module#br(label: string, condition?: ExpressionRef, value?: ExpressionRef): ExpressionRef
    Creates a branch (br) to a label.

  • Module#switch(labels: string[], defaultLabel: string, condition: ExpressionRef, value?: ExpressionRef): ExpressionRef
    Creates a switch (br_table).

  • Module#nop(): ExpressionRef
    Creates a no-operation (nop) instruction.

  • Module#return(value?: ExpressionRef): ExpressionRef Creates a return.

  • Module#unreachable(): ExpressionRef
    Creates an unreachable instruction that will always trap.

  • Module#drop(value: ExpressionRef): ExpressionRef
    Creates a drop of a value.

  • Module#select(condition: ExpressionRef, ifTrue: ExpressionRef, ifFalse: ExpressionRef, type?: Type): ExpressionRef
    Creates a select of one of two values.

Variable accesses

  • Module#local.get(index: number, type: Type): ExpressionRef
    Creates a local.get for the local at the specified index. Note that we must specify the type here as we may not have created the local being accessed yet.

  • Module#local.set(index: number, value: ExpressionRef): ExpressionRef
    Creates a local.set for the local at the specified index.

  • Module#local.tee(index: number, value: ExpressionRef, type: Type): ExpressionRef
    Creates a local.tee for the local at the specified index. A tee differs from a set in that the value remains on the stack. Note that we must specify the type here as we may not have created the local being accessed yet.

  • Module#global.get(name: string, type: Type): ExpressionRef
    Creates a global.get for the global with the specified name. Note that we must specify the type here as we may not have created the global being accessed yet.

  • Module#global.set(name: string, value: ExpressionRef): ExpressionRef
    Creates a global.set for the global with the specified name.

Integer operations

  • Module#i32.const(value: number): ExpressionRef
  • Module#i32.clz(value: ExpressionRef): ExpressionRef
  • Module#i32.ctz(value: ExpressionRef): ExpressionRef
  • Module#i32.popcnt(value: ExpressionRef): ExpressionRef
  • Module#i32.eqz(value: ExpressionRef): ExpressionRef
  • Module#i32.add(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.sub(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.mul(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.div_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.div_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.rem_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.rem_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.and(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.or(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.xor(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.shl(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.shr_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.shr_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.rotl(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.rotr(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.eq(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.ne(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.lt_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.lt_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.le_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.le_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.gt_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.gt_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.ge_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32.ge_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.const(low: number, high: number): ExpressionRef
  • Module#i64.clz(value: ExpressionRef): ExpressionRef
  • Module#i64.ctz(value: ExpressionRef): ExpressionRef
  • Module#i64.popcnt(value: ExpressionRef): ExpressionRef
  • Module#i64.eqz(value: ExpressionRef): ExpressionRef
  • Module#i64.add(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.sub(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.mul(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.div_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.div_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.rem_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.rem_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.and(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.or(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.xor(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.shl(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.shr_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.shr_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.rotl(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.rotr(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.eq(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.ne(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.lt_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.lt_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.le_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.le_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.gt_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.gt_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.ge_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64.ge_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef

Floating point operations

  • Module#f32.const(value: number): ExpressionRef
  • Module#f32.const_bits(value: number): ExpressionRef
  • Module#f32.neg(value: ExpressionRef): ExpressionRef
  • Module#f32.abs(value: ExpressionRef): ExpressionRef
  • Module#f32.ceil(value: ExpressionRef): ExpressionRef
  • Module#f32.floor(value: ExpressionRef): ExpressionRef
  • Module#f32.trunc(value: ExpressionRef): ExpressionRef
  • Module#f32.nearest(value: ExpressionRef): ExpressionRef
  • Module#f32.sqrt(value: ExpressionRef): ExpressionRef
  • Module#f32.add(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32.sub(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32.mul(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32.div(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32.copysign(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32.min(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32.max(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32.eq(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32.ne(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32.lt(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32.le(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32.gt(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32.ge(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64.const(value: number): ExpressionRef
  • Module#f64.const_bits(value: number): ExpressionRef
  • Module#f64.neg(value: ExpressionRef): ExpressionRef
  • Module#f64.abs(value: ExpressionRef): ExpressionRef
  • Module#f64.ceil(value: ExpressionRef): ExpressionRef
  • Module#f64.floor(value: ExpressionRef): ExpressionRef
  • Module#f64.trunc(value: ExpressionRef): ExpressionRef
  • Module#f64.nearest(value: ExpressionRef): ExpressionRef
  • Module#f64.sqrt(value: ExpressionRef): ExpressionRef
  • Module#f64.add(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64.sub(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64.mul(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64.div(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64.copysign(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64.min(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64.max(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64.eq(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64.ne(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64.lt(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64.le(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64.gt(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64.ge(left: ExpressionRef, right: ExpressionRef): ExpressionRef

Datatype conversions

  • Module#i32.trunc_s.f32(value: ExpressionRef): ExpressionRef
  • Module#i32.trunc_s.f64(value: ExpressionRef): ExpressionRef
  • Module#i32.trunc_u.f32(value: ExpressionRef): ExpressionRef
  • Module#i32.trunc_u.f64(value: ExpressionRef): ExpressionRef
  • Module#i32.reinterpret(value: ExpressionRef): ExpressionRef
  • Module#i32.wrap(value: ExpressionRef): ExpressionRef
  • Module#i64.trunc_s.f32(value: ExpressionRef): ExpressionRef
  • Module#i64.trunc_s.f64(value: ExpressionRef): ExpressionRef
  • Module#i64.trunc_u.f32(value: ExpressionRef): ExpressionRef
  • Module#i64.trunc_u.f64(value: ExpressionRef): ExpressionRef
  • Module#i64.reinterpret(value: ExpressionRef): ExpressionRef
  • Module#i64.extend_s(value: ExpressionRef): ExpressionRef
  • Module#i64.extend_u(value: ExpressionRef): ExpressionRef
  • Module#f32.reinterpret(value: ExpressionRef): ExpressionRef
  • Module#f32.convert_s.i32(value: ExpressionRef): ExpressionRef
  • Module#f32.convert_s.i64(value: ExpressionRef): ExpressionRef
  • Module#f32.convert_u.i32(value: ExpressionRef): ExpressionRef
  • Module#f32.convert_u.i64(value: ExpressionRef): ExpressionRef
  • Module#f32.demote(value: ExpressionRef): ExpressionRef
  • Module#f64.reinterpret(value: ExpressionRef): ExpressionRef
  • Module#f64.convert_s.i32(value: ExpressionRef): ExpressionRef
  • Module#f64.convert_s.i64(value: ExpressionRef): ExpressionRef
  • Module#f64.convert_u.i32(value: ExpressionRef): ExpressionRef
  • Module#f64.convert_u.i64(value: ExpressionRef): ExpressionRef
  • Module#f64.promote(value: ExpressionRef): ExpressionRef

Function calls

  • Module#call(name: string, operands: ExpressionRef[], returnType: Type): ExpressionRef Creates a call to a function. Note that we must specify the return type here as we may not have created the function being called yet.

  • Module#return_call(name: string, operands: ExpressionRef[], returnType: Type): ExpressionRef
    Like call, but creates a tail-call. 🦄

  • Module#call_indirect(target: ExpressionRef, operands: ExpressionRef[], params: Type, results: Type): ExpressionRef
    Similar to call, but calls indirectly, i.e., via a function pointer, so an expression replaces the name as the called value.

  • Module#return_call_indirect(target: ExpressionRef, operands: ExpressionRef[], params: Type, results: Type): ExpressionRef
    Like call_indirect, but creates a tail-call. 🦄

Linear memory accesses

  • Module#i32.load(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i32.load8_s(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i32.load8_u(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i32.load16_s(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i32.load16_u(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i32.store(offset: number, align: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.store8(offset: number, align: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.store16(offset: number, align: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.load(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i64.load8_s(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i64.load8_u(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i64.load16_s(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i64.load16_u(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i64.load32_s(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i64.load32_u(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i64.store(offset: number, align: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.store8(offset: number, align: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.store16(offset: number, align: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.store32(offset: number, align: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#f32.load(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#f32.store(offset: number, align: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#f64.load(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#f64.store(offset: number, align: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef

Host operations

  • Module#memory.size(): ExpressionRef
  • Module#memory.grow(value: number): ExpressionRef

Vector operations 🦄

  • Module#v128.const(bytes: Uint8Array): ExpressionRef
  • Module#v128.load(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#v128.store(offset: number, align: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#v128.not(value: ExpressionRef): ExpressionRef
  • Module#v128.and(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#v128.or(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#v128.xor(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#v128.andnot(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#v128.bitselect(left: ExpressionRef, right: ExpressionRef, cond: ExpressionRef): ExpressionRef
  • Module#i8x16.splat(value: ExpressionRef): ExpressionRef
  • Module#i8x16.extract_lane_s(vec: ExpressionRef, index: number): ExpressionRef
  • Module#i8x16.extract_lane_u(vec: ExpressionRef, index: number): ExpressionRef
  • Module#i8x16.replace_lane(vec: ExpressionRef, index: number, value: ExpressionRef): ExpressionRef
  • Module#i8x16.eq(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.ne(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.lt_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.lt_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.gt_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.gt_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.le_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.lt_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.ge_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.ge_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.neg(value: ExpressionRef): ExpressionRef
  • Module#i8x16.any_true(value: ExpressionRef): ExpressionRef
  • Module#i8x16.all_true(value: ExpressionRef): ExpressionRef
  • Module#i8x16.shl(vec: ExpressionRef, shift: ExpressionRef): ExpressionRef
  • Module#i8x16.shr_s(vec: ExpressionRef, shift: ExpressionRef): ExpressionRef
  • Module#i8x16.shr_u(vec: ExpressionRef, shift: ExpressionRef): ExpressionRef
  • Module#i8x16.add(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.add_saturate_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.add_saturate_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.sub(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.sub_saturate_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.sub_saturate_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.mul(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.min_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.min_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.max_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.max_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.avgr_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.narrow_i16x8_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i8x16.narrow_i16x8_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.splat(value: ExpressionRef): ExpressionRef
  • Module#i16x8.extract_lane_s(vec: ExpressionRef, index: number): ExpressionRef
  • Module#i16x8.extract_lane_u(vec: ExpressionRef, index: number): ExpressionRef
  • Module#i16x8.replace_lane(vec: ExpressionRef, index: number, value: ExpressionRef): ExpressionRef
  • Module#i16x8.eq(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.ne(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.lt_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.lt_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.gt_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.gt_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.le_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.lt_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.ge_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.ge_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.neg(value: ExpressionRef): ExpressionRef
  • Module#i16x8.any_true(value: ExpressionRef): ExpressionRef
  • Module#i16x8.all_true(value: ExpressionRef): ExpressionRef
  • Module#i16x8.shl(vec: ExpressionRef, shift: ExpressionRef): ExpressionRef
  • Module#i16x8.shr_s(vec: ExpressionRef, shift: ExpressionRef): ExpressionRef
  • Module#i16x8.shr_u(vec: ExpressionRef, shift: ExpressionRef): ExpressionRef
  • Module#i16x8.add(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.add_saturate_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.add_saturate_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.sub(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.sub_saturate_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.sub_saturate_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.mul(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.min_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.min_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.max_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.max_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.avgr_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.narrow_i32x4_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.narrow_i32x4_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i16x8.widen_low_i8x16_s(value: ExpressionRef): ExpressionRef
  • Module#i16x8.widen_high_i8x16_s(value: ExpressionRef): ExpressionRef
  • Module#i16x8.widen_low_i8x16_u(value: ExpressionRef): ExpressionRef
  • Module#i16x8.widen_high_i8x16_u(value: ExpressionRef): ExpressionRef
  • Module#i16x8.load8x8_s(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i16x8.load8x8_u(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i32x4.splat(value: ExpressionRef): ExpressionRef
  • Module#i32x4.extract_lane_s(vec: ExpressionRef, index: number): ExpressionRef
  • Module#i32x4.extract_lane_u(vec: ExpressionRef, index: number): ExpressionRef
  • Module#i32x4.replace_lane(vec: ExpressionRef, index: number, value: ExpressionRef): ExpressionRef
  • Module#i32x4.eq(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.ne(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.lt_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.lt_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.gt_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.gt_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.le_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.lt_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.ge_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.ge_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.neg(value: ExpressionRef): ExpressionRef
  • Module#i32x4.any_true(value: ExpressionRef): ExpressionRef
  • Module#i32x4.all_true(value: ExpressionRef): ExpressionRef
  • Module#i32x4.shl(vec: ExpressionRef, shift: ExpressionRef): ExpressionRef
  • Module#i32x4.shr_s(vec: ExpressionRef, shift: ExpressionRef): ExpressionRef
  • Module#i32x4.shr_u(vec: ExpressionRef, shift: ExpressionRef): ExpressionRef
  • Module#i32x4.add(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.sub(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.mul(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.min_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.min_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.max_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.max_u(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.dot_i16x8_s(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i32x4.trunc_sat_f32x4_s(value: ExpressionRef): ExpressionRef
  • Module#i32x4.trunc_sat_f32x4_u(value: ExpressionRef): ExpressionRef
  • Module#i32x4.widen_low_i16x8_s(value: ExpressionRef): ExpressionRef
  • Module#i32x4.widen_high_i16x8_s(value: ExpressionRef): ExpressionRef
  • Module#i32x4.widen_low_i16x8_u(value: ExpressionRef): ExpressionRef
  • Module#i32x4.widen_high_i16x8_u(value: ExpressionRef): ExpressionRef
  • Module#i32x4.load16x4_s(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i32x4.load16x4_u(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i64x2.splat(value: ExpressionRef): ExpressionRef
  • Module#i64x2.extract_lane_s(vec: ExpressionRef, index: number): ExpressionRef
  • Module#i64x2.extract_lane_u(vec: ExpressionRef, index: number): ExpressionRef
  • Module#i64x2.replace_lane(vec: ExpressionRef, index: number, value: ExpressionRef): ExpressionRef
  • Module#i64x2.neg(value: ExpressionRef): ExpressionRef
  • Module#i64x2.any_true(value: ExpressionRef): ExpressionRef
  • Module#i64x2.all_true(value: ExpressionRef): ExpressionRef
  • Module#i64x2.shl(vec: ExpressionRef, shift: ExpressionRef): ExpressionRef
  • Module#i64x2.shr_s(vec: ExpressionRef, shift: ExpressionRef): ExpressionRef
  • Module#i64x2.shr_u(vec: ExpressionRef, shift: ExpressionRef): ExpressionRef
  • Module#i64x2.add(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64x2.sub(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#i64x2.trunc_sat_f64x2_s(value: ExpressionRef): ExpressionRef
  • Module#i64x2.trunc_sat_f64x2_u(value: ExpressionRef): ExpressionRef
  • Module#i64x2.load32x2_s(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#i64x2.load32x2_u(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#f32x4.splat(value: ExpressionRef): ExpressionRef
  • Module#f32x4.extract_lane(vec: ExpressionRef, index: number): ExpressionRef
  • Module#f32x4.replace_lane(vec: ExpressionRef, index: number, value: ExpressionRef): ExpressionRef
  • Module#f32x4.eq(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32x4.ne(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32x4.lt(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32x4.gt(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32x4.le(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32x4.ge(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32x4.abs(value: ExpressionRef): ExpressionRef
  • Module#f32x4.neg(value: ExpressionRef): ExpressionRef
  • Module#f32x4.sqrt(value: ExpressionRef): ExpressionRef
  • Module#f32x4.qfma(a: ExpressionRef, b: ExpressionRef, c: ExpressionRef): ExpressionRef
  • Module#f32x4.qfms(a: ExpressionRef, b: ExpressionRef, c: ExpressionRef): ExpressionRef
  • Module#f32x4.add(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32x4.sub(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32x4.mul(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32x4.div(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32x4.min(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32x4.max(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f32x4.convert_i32x4_s(value: ExpressionRef): ExpressionRef
  • Module#f32x4.convert_i32x4_u(value: ExpressionRef): ExpressionRef
  • Module#f64x2.splat(value: ExpressionRef): ExpressionRef
  • Module#f64x2.extract_lane(vec: ExpressionRef, index: number): ExpressionRef
  • Module#f64x2.replace_lane(vec: ExpressionRef, index: number, value: ExpressionRef): ExpressionRef
  • Module#f64x2.eq(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64x2.ne(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64x2.lt(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64x2.gt(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64x2.le(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64x2.ge(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64x2.abs(value: ExpressionRef): ExpressionRef
  • Module#f64x2.neg(value: ExpressionRef): ExpressionRef
  • Module#f64x2.sqrt(value: ExpressionRef): ExpressionRef
  • Module#f64x2.qfma(a: ExpressionRef, b: ExpressionRef, c: ExpressionRef): ExpressionRef
  • Module#f64x2.qfms(a: ExpressionRef, b: ExpressionRef, c: ExpressionRef): ExpressionRef
  • Module#f64x2.add(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64x2.sub(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64x2.mul(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64x2.div(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64x2.min(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64x2.max(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#f64x2.convert_i64x2_s(value: ExpressionRef): ExpressionRef
  • Module#f64x2.convert_i64x2_u(value: ExpressionRef): ExpressionRef
  • Module#v8x16.shuffle(left: ExpressionRef, right: ExpressionRef, mask: Uint8Array): ExpressionRef
  • Module#v8x16.swizzle(left: ExpressionRef, right: ExpressionRef): ExpressionRef
  • Module#v8x16.load_splat(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#v16x8.load_splat(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#v32x4.load_splat(offset: number, align: number, ptr: ExpressionRef): ExpressionRef
  • Module#v64x2.load_splat(offset: number, align: number, ptr: ExpressionRef): ExpressionRef

Atomic memory accesses 🦄

  • Module#i32.atomic.load(offset: number, ptr: ExpressionRef): ExpressionRef
  • Module#i32.atomic.load8_u(offset: number, ptr: ExpressionRef): ExpressionRef
  • Module#i32.atomic.load16_u(offset: number, ptr: ExpressionRef): ExpressionRef
  • Module#i32.atomic.store(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.store8(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.store16(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.load(offset: number, ptr: ExpressionRef): ExpressionRef
  • Module#i64.atomic.load8_u(offset: number, ptr: ExpressionRef): ExpressionRef
  • Module#i64.atomic.load16_u(offset: number, ptr: ExpressionRef): ExpressionRef
  • Module#i64.atomic.load32_u(offset: number, ptr: ExpressionRef): ExpressionRef
  • Module#i64.atomic.store(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.store8(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.store16(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.store32(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef

Atomic read-modify-write operations 🦄

  • Module#i32.atomic.rmw.add(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw.sub(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw.and(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw.or(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw.xor(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw.xchg(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw.cmpxchg(offset: number, ptr: ExpressionRef, expected: ExpressionRef, replacement: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw8_u.add(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw8_u.sub(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw8_u.and(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw8_u.or(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw8_u.xor(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw8_u.xchg(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw8_u.cmpxchg(offset: number, ptr: ExpressionRef, expected: ExpressionRef, replacement: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw16_u.add(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw16_u.sub(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw16_u.and(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw16_u.or(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw16_u.xor(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw16_u.xchg(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i32.atomic.rmw16_u.cmpxchg(offset: number, ptr: ExpressionRef, expected: ExpressionRef, replacement: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw.add(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw.sub(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw.and(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw.or(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw.xor(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw.xchg(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw.cmpxchg(offset: number, ptr: ExpressionRef, expected: ExpressionRef, replacement: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw8_u.add(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw8_u.sub(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw8_u.and(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw8_u.or(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw8_u.xor(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw8_u.xchg(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw8_u.cmpxchg(offset: number, ptr: ExpressionRef, expected: ExpressionRef, replacement: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw16_u.add(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw16_u.sub(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw16_u.and(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw16_u.or(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw16_u.xor(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw16_u.xchg(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw16_u.cmpxchg(offset: number, ptr: ExpressionRef, expected: ExpressionRef, replacement: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw32_u.add(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw32_u.sub(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw32_u.and(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw32_u.or(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw32_u.xor(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw32_u.xchg(offset: number, ptr: ExpressionRef, value: ExpressionRef): ExpressionRef
  • Module#i64.atomic.rmw32_u.cmpxchg(offset: number, ptr: ExpressionRef, expected: ExpressionRef, replacement: ExpressionRef): ExpressionRef

Atomic wait and notify operations 🦄

  • Module#memory.atomic.wait32(ptr: ExpressionRef, expected: ExpressionRef, timeout: ExpressionRef): ExpressionRef
  • Module#memory.atomic.wait64(ptr: ExpressionRef, expected: ExpressionRef, timeout: ExpressionRef): ExpressionRef
  • Module#memoryatomic.notify(ptr: ExpressionRef, notifyCount: ExpressionRef): ExpressionRef
  • Module#atomic.fence(): ExpressionRef

Sign extension operations 🦄

  • Module#i32.extend8_s(value: ExpressionRef): ExpressionRef
  • Module#i32.extend16_s(value: ExpressionRef): ExpressionRef
  • Module#i64.extend8_s(value: ExpressionRef): ExpressionRef
  • Module#i64.extend16_s(value: ExpressionRef): ExpressionRef
  • Module#i64.extend32_s(value: ExpressionRef): ExpressionRef

Multi-value operations 🦄

Note that these are pseudo instructions enabling Binaryen to reason about multiple values on the stack.

  • Module#push(value: ExpressionRef): ExpressionRef
  • Module#i32.pop(): ExpressionRef
  • Module#i64.pop(): ExpressionRef
  • Module#f32.pop(): ExpressionRef
  • Module#f64.pop(): ExpressionRef
  • Module#v128.pop(): ExpressionRef
  • Module#funcref.pop(): ExpressionRef
  • Module#anyref.pop(): ExpressionRef
  • Module#externref.pop(): ExpressionRef
  • Module#tuple.make(elements: ExpressionRef[]): ExpressionRef
  • Module#tuple.extract(tuple: ExpressionRef, index: number): ExpressionRef

Exception handling operations 🦄

  • Module#try(name: string, body: ExpressionRef, catchTags: string[], catchBodies: ExpressionRef[], delegateTarget?: string): ExpressionRef
  • Module#throw(tag: string, operands: ExpressionRef[]): ExpressionRef
  • Module#rethrow(target: string): ExpressionRef
  • Module#addTag(name: string, params: Type, results: Type): TagRef
  • Module#getTag(name: string): TagRef
  • Module#removeTag(name: stirng): void
  • Module#addTagImport(internalName: string, externalModuleName: string, externalBaseName: string, params: Type, results: Type): void
  • Module#addTagExport(internalName: string, externalName: string): ExportRef

Reference types operations 🦄

  • Module#ref.null(): ExpressionRef
  • Module#ref.is_null(value: ExpressionRef): ExpressionRef
  • Module#ref.func(name: string): ExpressionRef

Bulk memory operations 🦄

  • Module#memory.init(segment: number, dest: ExpressionRef, offset: ExpressionRef, size: ExpressionRef): ExpressionRef
  • Module#memory.copy(dest: ExpressionRef, source: ExpressionRef, size: ExpressionRef): ExpressionRef
  • Module#memory.fill(dest: ExpressionRef, value: ExpressionRef, size: ExpressionRef): ExpressionRef

Expression manipulation

  • getExpressionId(expr: ExpressionRef): ExpressionId
    Gets the id (kind) of the specified expression. Possible values are:

    • InvalidId: ExpressionId
    • BlockId: ExpressionId
    • IfId: ExpressionId
    • LoopId: ExpressionId
    • BreakId: ExpressionId
    • SwitchId: ExpressionId
    • CallId: ExpressionId
    • CallIndirectId: ExpressionId
    • LocalGetId: ExpressionId
    • LocalSetId: ExpressionId
    • GlobalGetId: ExpressionId
    • GlobalSetId: ExpressionId
    • LoadId: ExpressionId
    • StoreId: ExpressionId
    • ConstId: ExpressionId
    • UnaryId: ExpressionId
    • BinaryId: ExpressionId
    • SelectId: ExpressionId
    • DropId: ExpressionId
    • ReturnId: ExpressionId
    • NopId: ExpressionId
    • UnreachableId: ExpressionId
    • AtomicCmpxchgId: ExpressionId
    • AtomicRMWId: ExpressionId
    • AtomicWaitId: ExpressionId
    • AtomicNotifyId: ExpressionId
    • AtomicFenceId: ExpressionId
    • SIMDExtractId: ExpressionId
    • SIMDReplaceId: ExpressionId
    • SIMDShuffleId: ExpressionId
    • SIMDTernaryId: ExpressionId
    • SIMDShiftId: ExpressionId
    • SIMDLoadId: ExpressionId
    • MemoryInitId: ExpressionId
    • DataDropId: ExpressionId
    • MemoryCopyId: ExpressionId
    • MemoryFillId: ExpressionId
    • RefNullId: ExpressionId
    • RefIsNullId: ExpressionId
    • RefFuncId: ExpressionId
    • TryId: ExpressionId
    • ThrowId: ExpressionId
    • RethrowId: ExpressionId
    • PushId: ExpressionId
    • PopId: ExpressionId
  • getExpressionType(expr: ExpressionRef): Type
    Gets the type of the specified expression.

  • getExpressionInfo(expr: ExpressionRef): ExpressionInfo
    Obtains information about an expression, always including:

    • Info#id: ExpressionId
    • Info#type: Type

    Additional properties depend on the expression's id and are usually equivalent to the respective parameters when creating such an expression:

    • BlockInfo#name: string
    • BlockInfo#children: ExpressionRef[]
    • IfInfo#condition: ExpressionRef
    • IfInfo#ifTrue: ExpressionRef
    • IfInfo#ifFalse: ExpressionRef | null
    • LoopInfo#name: string
    • LoopInfo#body: ExpressionRef
    • BreakInfo#name: string
    • BreakInfo#condition: ExpressionRef | null
    • BreakInfo#value: ExpressionRef | null
    • SwitchInfo#names: string[]
    • SwitchInfo#defaultName: string | null
    • SwitchInfo#condition: ExpressionRef
    • SwitchInfo#value: ExpressionRef | null
    • CallInfo#target: string
    • CallInfo#operands: ExpressionRef[]
    • CallImportInfo#target: string
    • CallImportInfo#operands: ExpressionRef[]
    • CallIndirectInfo#target: ExpressionRef
    • CallIndirectInfo#operands: ExpressionRef[]
    • LocalGetInfo#index: number
    • LocalSetInfo#isTee: boolean
    • LocalSetInfo#index: number
    • LocalSetInfo#value: ExpressionRef
    • GlobalGetInfo#name: string
    • GlobalSetInfo#name: string
    • GlobalSetInfo#value: ExpressionRef
    • LoadInfo#isAtomic: boolean
    • LoadInfo#isSigned: boolean
    • LoadInfo#offset: number
    • LoadInfo#bytes: number
    • LoadInfo#align: number
    • LoadInfo#ptr: ExpressionRef
    • StoreInfo#isAtomic: boolean
    • StoreInfo#offset: number
    • StoreInfo#bytes: number
    • StoreInfo#align: number
    • StoreInfo#ptr: ExpressionRef
    • StoreInfo#value: ExpressionRef
    • ConstInfo#value: number | { low: number, high: number }
    • UnaryInfo#op: number
    • UnaryInfo#value: ExpressionRef
    • BinaryInfo#op: number
    • BinaryInfo#left: ExpressionRef
    • BinaryInfo#right: ExpressionRef
    • SelectInfo#ifTrue: ExpressionRef
    • SelectInfo#ifFalse: ExpressionRef
    • SelectInfo#condition: ExpressionRef
    • DropInfo#value: ExpressionRef
    • ReturnInfo#value: ExpressionRef | null
    • NopInfo
    • UnreachableInfo
    • PopInfo
    • MemorySizeInfo
    • MemoryGrowInfo#delta: ExpressionRef
    • AtomicRMWInfo#op: number
    • AtomicRMWInfo#bytes: number
    • AtomicRMWInfo#offset: number
    • AtomicRMWInfo#ptr: ExpressionRef
    • AtomicRMWInfo#value: ExpressionRef
    • AtomicCmpxchgInfo#bytes: number
    • AtomicCmpxchgInfo#offset: number
    • AtomicCmpxchgInfo#ptr: ExpressionRef
    • AtomicCmpxchgInfo#expected: ExpressionRef
    • AtomicCmpxchgInfo#replacement: ExpressionRef
    • AtomicWaitInfo#ptr: ExpressionRef
    • AtomicWaitInfo#expected: ExpressionRef
    • AtomicWaitInfo#timeout: ExpressionRef
    • AtomicWaitInfo#expectedType: Type
    • AtomicNotifyInfo#ptr: ExpressionRef
    • AtomicNotifyInfo#notifyCount: ExpressionRef
    • AtomicFenceInfo
    • SIMDExtractInfo#op: Op
    • SIMDExtractInfo#vec: ExpressionRef
    • SIMDExtractInfo#index: ExpressionRef
    • SIMDReplaceInfo#op: Op
    • SIMDReplaceInfo#vec: ExpressionRef
    • SIMDReplaceInfo#index: ExpressionRef
    • SIMDReplaceInfo#value: ExpressionRef
    • SIMDShuffleInfo#left: ExpressionRef
    • SIMDShuffleInfo#right: ExpressionRef
    • SIMDShuffleInfo#mask: Uint8Array
    • SIMDTernaryInfo#op: Op
    • SIMDTernaryInfo#a: ExpressionRef
    • SIMDTernaryInfo#b: ExpressionRef
    • SIMDTernaryInfo#c: ExpressionRef
    • SIMDShiftInfo#op: Op
    • SIMDShiftInfo#vec: ExpressionRef
    • SIMDShiftInfo#shift: ExpressionRef
    • SIMDLoadInfo#op: Op
    • SIMDLoadInfo#offset: number
    • SIMDLoadInfo#align: number
    • SIMDLoadInfo#ptr: ExpressionRef
    • MemoryInitInfo#segment: number
    • MemoryInitInfo#dest: ExpressionRef
    • MemoryInitInfo#offset: ExpressionRef
    • MemoryInitInfo#size: ExpressionRef
    • MemoryDropInfo#segment: number
    • MemoryCopyInfo#dest: ExpressionRef
    • MemoryCopyInfo#source: ExpressionRef
    • MemoryCopyInfo#size: ExpressionRef
    • MemoryFillInfo#dest: ExpressionRef
    • MemoryFillInfo#value: ExpressionRef
    • MemoryFillInfo#size: ExpressionRef
    • RefNullInfo
    • RefIsInfo#op: Operations
    • RefIsInfo#value: ExpressionRef
    • RefAsInfo#op: Operations
    • RefAsInfo#value: ExpressionRef
    • RefFuncInfo#func: string
    • RefEqInfo#left: ExpressionRef
    • RefEqInfo#right: ExpressionRef
    • TryInfo#name: string
    • TryInfo#body: ExpressionRef
    • TryInfo#catchBodies: ExpressionRef[]
    • TryInfo#ccatchBodies: ExpressionRef[];
    • TryInfo#chasCatchAll: boolean;
    • TryInfo#cdelegateTarget: string;
    • TryInfo#cisDelegate: boolean;
    • ThrowInfo#tag: string
    • ThrowInfo#operands: ExpressionRef[]
    • RethrowInfo#target: string
    • TupleMakeInfo#operands: ExpressionRef[]
    • TupleExtract#tuple: ExpressionRef
    • TupleExtract#index: number
    • I31NewInfo#value: ExpressionRef
    • I31GetInfo#i31: ExpressionRef
    • I31GetInfo#isSigned: boolean
    • PushInfo#value: ExpressionRef
  • emitText(expression: ExpressionRef): string
    Emits the expression in Binaryen's s-expression text format (not official stack-style text format).

  • copyExpression(expression: ExpressionRef): ExpressionRef
    Creates a deep copy of an expression.

Relooper

  • new Relooper()
    Constructs a relooper instance. This lets you provide an arbitrary CFG, and the relooper will structure it for WebAssembly.

  • Relooper#addBlock(code: ExpressionRef): RelooperBlockRef
    Adds a new block to the CFG, containing the provided code as its body.

  • Relooper#addBranch(from: RelooperBlockRef, to: RelooperBlockRef, condition: ExpressionRef, code: ExpressionRef): void
    Adds a branch from a block to another block, with a condition (or nothing, if this is the default branch to take from the origin - each block must have one such branch), and optional code to execute on the branch (useful for phis).

  • Relooper#addBlockWithSwitch(code: ExpressionRef, condition: ExpressionRef): RelooperBlockRef
    Adds a new block, which ends with a switch/br_table, with provided code and condition (that determines where we go in the switch).

  • Relooper#addBranchForSwitch(from: RelooperBlockRef, to: RelooperBlockRef, indexes: number[], code: ExpressionRef): void
    Adds a branch from a block ending in a switch, to another block, using an array of indexes that determine where to go, and optional code to execute on the branch.

  • Relooper#renderAndDispose(entry: RelooperBlockRef, labelHelper: number, module: Module): ExpressionRef
    Renders and cleans up the Relooper instance. Call this after you have created all the blocks and branches, giving it the entry block (where control flow begins), a label helper variable (an index of a local we can use, necessary for irreducible control flow), and the module. This returns an expression - normal WebAssembly code - that you can use normally anywhere.

Source maps

  • Module#addDebugInfoFileName(filename: string): number
    Adds a debug info file name to the module and returns its index.

  • Module#getDebugInfoFileName(index: number): string | null
    Gets the name of the debug info file at the specified index.

  • Module#setDebugLocation(func: FunctionRef, expr: ExpressionRef, fileIndex: number, lineNumber: number, columnNumber: number): void
    Sets the debug location of the specified ExpressionRef within the specified FunctionRef.

Debugging

  • Module#interpret(): void
    Runs the module in the interpreter, calling the start function.

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Version

116.0.0

License

Apache-2.0

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  • dcode
  • assemblyscript