diff options
Diffstat (limited to 'node_modules/@webassemblyjs/wasm-gen/esm/encoder')
| -rw-r--r-- | node_modules/@webassemblyjs/wasm-gen/esm/encoder/index.js | 301 |
1 files changed, 0 insertions, 301 deletions
diff --git a/node_modules/@webassemblyjs/wasm-gen/esm/encoder/index.js b/node_modules/@webassemblyjs/wasm-gen/esm/encoder/index.js deleted file mode 100644 index ec31249..0000000 --- a/node_modules/@webassemblyjs/wasm-gen/esm/encoder/index.js +++ /dev/null @@ -1,301 +0,0 @@ -function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } } - -import * as leb from "@webassemblyjs/leb128"; -import * as ieee754 from "@webassemblyjs/ieee754"; -import * as utf8 from "@webassemblyjs/utf8"; -import constants from "@webassemblyjs/helper-wasm-bytecode"; -import { encodeNode } from "../index"; - -function assertNotIdentifierNode(n) { - if (n.type === "Identifier") { - throw new Error("Unsupported node Identifier"); - } -} - -export function encodeVersion(v) { - var bytes = constants.moduleVersion; - bytes[0] = v; - return bytes; -} -export function encodeHeader() { - return constants.magicModuleHeader; -} -export function encodeU32(v) { - var uint8view = new Uint8Array(leb.encodeU32(v)); - - var array = _toConsumableArray(uint8view); - - return array; -} -export function encodeI32(v) { - var uint8view = new Uint8Array(leb.encodeI32(v)); - - var array = _toConsumableArray(uint8view); - - return array; -} -export function encodeI64(v) { - var uint8view = new Uint8Array(leb.encodeI64(v)); - - var array = _toConsumableArray(uint8view); - - return array; -} -export function encodeVec(elements) { - var size = encodeU32(elements.length); - return _toConsumableArray(size).concat(_toConsumableArray(elements)); -} -export function encodeValtype(v) { - var byte = constants.valtypesByString[v]; - - if (typeof byte === "undefined") { - throw new Error("Unknown valtype: " + v); - } - - return parseInt(byte, 10); -} -export function encodeMutability(v) { - var byte = constants.globalTypesByString[v]; - - if (typeof byte === "undefined") { - throw new Error("Unknown mutability: " + v); - } - - return parseInt(byte, 10); -} -export function encodeUTF8Vec(str) { - return encodeVec(utf8.encode(str)); -} -export function encodeLimits(n) { - var out = []; - - if (typeof n.max === "number") { - out.push(0x01); - out.push.apply(out, _toConsumableArray(encodeU32(n.min))); // $FlowIgnore: ensured by the typeof - - out.push.apply(out, _toConsumableArray(encodeU32(n.max))); - } else { - out.push(0x00); - out.push.apply(out, _toConsumableArray(encodeU32(n.min))); - } - - return out; -} -export function encodeModuleImport(n) { - var out = []; - out.push.apply(out, _toConsumableArray(encodeUTF8Vec(n.module))); - out.push.apply(out, _toConsumableArray(encodeUTF8Vec(n.name))); - - switch (n.descr.type) { - case "GlobalType": - { - out.push(0x03); // $FlowIgnore: GlobalType ensure that these props exists - - out.push(encodeValtype(n.descr.valtype)); // $FlowIgnore: GlobalType ensure that these props exists - - out.push(encodeMutability(n.descr.mutability)); - break; - } - - case "Memory": - { - out.push(0x02); // $FlowIgnore - - out.push.apply(out, _toConsumableArray(encodeLimits(n.descr.limits))); - break; - } - - case "Table": - { - out.push(0x01); - out.push(0x70); // element type - // $FlowIgnore - - out.push.apply(out, _toConsumableArray(encodeLimits(n.descr.limits))); - break; - } - - case "FuncImportDescr": - { - out.push(0x00); // $FlowIgnore - - assertNotIdentifierNode(n.descr.id); // $FlowIgnore - - out.push.apply(out, _toConsumableArray(encodeU32(n.descr.id.value))); - break; - } - - default: - throw new Error("Unsupport operation: encode module import of type: " + n.descr.type); - } - - return out; -} -export function encodeSectionMetadata(n) { - var out = []; - var sectionId = constants.sections[n.section]; - - if (typeof sectionId === "undefined") { - throw new Error("Unknown section: " + n.section); - } - - if (n.section === "start") { - /** - * This is not implemented yet because it's a special case which - * doesn't have a vector in its section. - */ - throw new Error("Unsupported section encoding of type start"); - } - - out.push(sectionId); - out.push.apply(out, _toConsumableArray(encodeU32(n.size.value))); - out.push.apply(out, _toConsumableArray(encodeU32(n.vectorOfSize.value))); - return out; -} -export function encodeCallInstruction(n) { - var out = []; - assertNotIdentifierNode(n.index); - out.push(0x10); // $FlowIgnore - - out.push.apply(out, _toConsumableArray(encodeU32(n.index.value))); - return out; -} -export function encodeCallIndirectInstruction(n) { - var out = []; // $FlowIgnore - - assertNotIdentifierNode(n.index); - out.push(0x11); // $FlowIgnore - - out.push.apply(out, _toConsumableArray(encodeU32(n.index.value))); // add a reserved byte - - out.push(0x00); - return out; -} -export function encodeModuleExport(n) { - var out = []; - assertNotIdentifierNode(n.descr.id); - var exportTypeByteString = constants.exportTypesByName[n.descr.exportType]; - - if (typeof exportTypeByteString === "undefined") { - throw new Error("Unknown export of type: " + n.descr.exportType); - } - - var exportTypeByte = parseInt(exportTypeByteString, 10); - out.push.apply(out, _toConsumableArray(encodeUTF8Vec(n.name))); - out.push(exportTypeByte); // $FlowIgnore - - out.push.apply(out, _toConsumableArray(encodeU32(n.descr.id.value))); - return out; -} -export function encodeTypeInstruction(n) { - var out = [0x60]; - var params = n.functype.params.map(function (x) { - return x.valtype; - }).map(encodeValtype); - var results = n.functype.results.map(encodeValtype); - out.push.apply(out, _toConsumableArray(encodeVec(params))); - out.push.apply(out, _toConsumableArray(encodeVec(results))); - return out; -} -export function encodeInstr(n) { - var out = []; - var instructionName = n.id; - - if (typeof n.object === "string") { - instructionName = "".concat(n.object, ".").concat(String(n.id)); - } - - var byteString = constants.symbolsByName[instructionName]; - - if (typeof byteString === "undefined") { - throw new Error("encodeInstr: unknown instruction " + JSON.stringify(instructionName)); - } - - var byte = parseInt(byteString, 10); - out.push(byte); - - if (n.args) { - n.args.forEach(function (arg) { - var encoder = encodeU32; // find correct encoder - - if (n.object === "i32") { - encoder = encodeI32; - } - - if (n.object === "i64") { - encoder = encodeI64; - } - - if (n.object === "f32") { - encoder = ieee754.encodeF32; - } - - if (n.object === "f64") { - encoder = ieee754.encodeF64; - } - - if (arg.type === "NumberLiteral" || arg.type === "FloatLiteral" || arg.type === "LongNumberLiteral") { - // $FlowIgnore - out.push.apply(out, _toConsumableArray(encoder(arg.value))); - } else { - throw new Error("Unsupported instruction argument encoding " + JSON.stringify(arg.type)); - } - }); - } - - return out; -} - -function encodeExpr(instrs) { - var out = []; - instrs.forEach(function (instr) { - // $FlowIgnore - var n = encodeNode(instr); - out.push.apply(out, _toConsumableArray(n)); - }); - return out; -} - -export function encodeStringLiteral(n) { - return encodeUTF8Vec(n.value); -} -export function encodeGlobal(n) { - var out = []; - var _n$globalType = n.globalType, - valtype = _n$globalType.valtype, - mutability = _n$globalType.mutability; - out.push(encodeValtype(valtype)); - out.push(encodeMutability(mutability)); - out.push.apply(out, _toConsumableArray(encodeExpr(n.init))); - return out; -} -export function encodeFuncBody(n) { - var out = []; - out.push(-1); // temporary function body size - // FIXME(sven): get the func locals? - - var localBytes = encodeVec([]); - out.push.apply(out, _toConsumableArray(localBytes)); - var funcBodyBytes = encodeExpr(n.body); - out[0] = funcBodyBytes.length + localBytes.length; - out.push.apply(out, _toConsumableArray(funcBodyBytes)); - return out; -} -export function encodeIndexInFuncSection(n) { - assertNotIdentifierNode(n.index); // $FlowIgnore - - return encodeU32(n.index.value); -} -export function encodeElem(n) { - var out = []; - assertNotIdentifierNode(n.table); // $FlowIgnore - - out.push.apply(out, _toConsumableArray(encodeU32(n.table.value))); - out.push.apply(out, _toConsumableArray(encodeExpr(n.offset))); // $FlowIgnore - - var funcs = n.funcs.reduce(function (acc, x) { - return _toConsumableArray(acc).concat(_toConsumableArray(encodeU32(x.value))); - }, []); - out.push.apply(out, _toConsumableArray(encodeVec(funcs))); - return out; -}
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