@webassemblyjs/ast

AST utils for webassemblyjs

Installation

yarn add @webassemblyjs/ast

Usage

Traverse

import { traverse } from "@webassemblyjs/ast";

traverse(ast, {
  Module(path) {
    console.log(path.node);
  }
});

Instruction signatures

import { signatures } from "@webassemblyjs/ast";

console.log(signatures);

Path methods

findParent: NodeLocator
replaceWith: Node => void
remove: () => void
insertBefore: Node => void
insertAfter: Node => void
stop: () => void

AST utils

function module(id, fields, metadata)
function moduleMetadata(sections, functionNames, localNames)
function moduleNameMetadata(value)
function functionNameMetadata(value, index)
function localNameMetadata(value, localIndex, functionIndex)
function binaryModule(id, blob)
function quoteModule(id, string)
function sectionMetadata(section, startOffset, size, vectorOfSize)
function loopInstruction(label, resulttype, instr)
function instruction(id, args, namedArgs)
function objectInstruction(id, object, args, namedArgs)
function ifInstruction(testLabel, test, result, consequent, alternate)
function stringLiteral(value)
function numberLiteralFromRaw(value, raw)
function longNumberLiteral(value, raw)
function floatLiteral(value, nan, inf, raw)
function elem(table, offset, funcs)
function indexInFuncSection(index)
function valtypeLiteral(name)
function typeInstruction(id, functype)
function start(index)
function globalType(valtype, mutability)
function leadingComment(value)
function blockComment(value)
function data(memoryIndex, offset, init)
function global(globalType, init, name)
function table(elementType, limits, name, elements)
function memory(limits, id)
function funcImportDescr(id, signature)
function moduleImport(module, name, descr)
function moduleExportDescr(exportType, id)
function moduleExport(name, descr)
function limit(min, max)
function signature(params, results)
function program(body)
function identifier(value, raw)
function blockInstruction(label, instr, result)
function callInstruction(index, instrArgs)
function callIndirectInstruction(signature, intrs)
function byteArray(values)
function func(name, signature, body, isExternal, metadata)
ConstantisModule
ConstantisModuleMetadata
ConstantisModuleNameMetadata
ConstantisFunctionNameMetadata
ConstantisLocalNameMetadata
ConstantisBinaryModule
ConstantisQuoteModule
ConstantisSectionMetadata
ConstantisLoopInstruction
ConstantisInstruction
ConstantisObjectInstruction
ConstantisIfInstruction
ConstantisStringLiteral
ConstantisNumberLiteral
ConstantisLongNumberLiteral
ConstantisFloatLiteral
ConstantisElem
ConstantisIndexInFuncSection
ConstantisValtypeLiteral
ConstantisTypeInstruction
ConstantisStart
ConstantisGlobalType
ConstantisLeadingComment
ConstantisBlockComment
ConstantisData
ConstantisGlobal
ConstantisTable
ConstantisMemory
ConstantisFuncImportDescr
ConstantisModuleImport
ConstantisModuleExportDescr
ConstantisModuleExport
ConstantisLimit
ConstantisSignature
ConstantisProgram
ConstantisIdentifier
ConstantisBlockInstruction
ConstantisCallInstruction
ConstantisCallIndirectInstruction
ConstantisByteArray
ConstantisFunc
ConstantassertModule
ConstantassertModuleMetadata
ConstantassertModuleNameMetadata
ConstantassertFunctionNameMetadata
ConstantassertLocalNameMetadata
ConstantassertBinaryModule
ConstantassertQuoteModule
ConstantassertSectionMetadata
ConstantassertLoopInstruction
ConstantassertInstruction
ConstantassertObjectInstruction
ConstantassertIfInstruction
ConstantassertStringLiteral
ConstantassertNumberLiteral
ConstantassertLongNumberLiteral
ConstantassertFloatLiteral
ConstantassertElem
ConstantassertIndexInFuncSection
ConstantassertValtypeLiteral
ConstantassertTypeInstruction
ConstantassertStart
ConstantassertGlobalType
ConstantassertLeadingComment
ConstantassertBlockComment
ConstantassertData
ConstantassertGlobal
ConstantassertTable
ConstantassertMemory
ConstantassertFuncImportDescr
ConstantassertModuleImport
ConstantassertModuleExportDescr
ConstantassertModuleExport
ConstantassertLimit
ConstantassertSignature
ConstantassertProgram
ConstantassertIdentifier
ConstantassertBlockInstruction
ConstantassertCallInstruction
ConstantassertCallIndirectInstruction
ConstantassertByteArray
ConstantassertFunc