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author | 2020-11-16 00:10:28 +0100 | |
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committer | 2020-11-16 00:10:28 +0100 | |
commit | e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch) | |
tree | 55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/@webassemblyjs/ast/esm/utils.js | |
download | website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.tar.gz website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.tar.bz2 website_creator-e06ec920f7a5d784e674c4c4b4e6d1da3dc7391d.zip |
api, login, auth
Diffstat (limited to 'node_modules/@webassemblyjs/ast/esm/utils.js')
-rw-r--r-- | node_modules/@webassemblyjs/ast/esm/utils.js | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/node_modules/@webassemblyjs/ast/esm/utils.js b/node_modules/@webassemblyjs/ast/esm/utils.js new file mode 100644 index 0000000..850410e --- /dev/null +++ b/node_modules/@webassemblyjs/ast/esm/utils.js @@ -0,0 +1,265 @@ +function _sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; } + +function _slicedToArray(arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return _sliceIterator(arr, i); } else { throw new TypeError("Invalid attempt to destructure non-iterable instance"); } } + +function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); } + +import { signatures } from "./signatures"; +import { traverse } from "./traverse"; +import constants from "@webassemblyjs/helper-wasm-bytecode"; +import { getSectionForNode } from "@webassemblyjs/helper-wasm-bytecode"; +export function isAnonymous(ident) { + return ident.raw === ""; +} +export function getSectionMetadata(ast, name) { + var section; + traverse(ast, { + SectionMetadata: function (_SectionMetadata) { + function SectionMetadata(_x) { + return _SectionMetadata.apply(this, arguments); + } + + SectionMetadata.toString = function () { + return _SectionMetadata.toString(); + }; + + return SectionMetadata; + }(function (_ref) { + var node = _ref.node; + + if (node.section === name) { + section = node; + } + }) + }); + return section; +} +export function getSectionMetadatas(ast, name) { + var sections = []; + traverse(ast, { + SectionMetadata: function (_SectionMetadata2) { + function SectionMetadata(_x2) { + return _SectionMetadata2.apply(this, arguments); + } + + SectionMetadata.toString = function () { + return _SectionMetadata2.toString(); + }; + + return SectionMetadata; + }(function (_ref2) { + var node = _ref2.node; + + if (node.section === name) { + sections.push(node); + } + }) + }); + return sections; +} +export function sortSectionMetadata(m) { + if (m.metadata == null) { + console.warn("sortSectionMetadata: no metadata to sort"); + return; + } // $FlowIgnore + + + m.metadata.sections.sort(function (a, b) { + var aId = constants.sections[a.section]; + var bId = constants.sections[b.section]; + + if (typeof aId !== "number" || typeof bId !== "number") { + throw new Error("Section id not found"); + } + + return aId - bId; + }); +} +export function orderedInsertNode(m, n) { + assertHasLoc(n); + var didInsert = false; + + if (n.type === "ModuleExport") { + m.fields.push(n); + return; + } + + m.fields = m.fields.reduce(function (acc, field) { + var fieldEndCol = Infinity; + + if (field.loc != null) { + // $FlowIgnore + fieldEndCol = field.loc.end.column; + } // $FlowIgnore: assertHasLoc ensures that + + + if (didInsert === false && n.loc.start.column < fieldEndCol) { + didInsert = true; + acc.push(n); + } + + acc.push(field); + return acc; + }, []); // Handles empty modules or n is the last element + + if (didInsert === false) { + m.fields.push(n); + } +} +export function assertHasLoc(n) { + if (n.loc == null || n.loc.start == null || n.loc.end == null) { + throw new Error("Internal failure: node (".concat(JSON.stringify(n.type), ") has no location information")); + } +} +export function getEndOfSection(s) { + assertHasLoc(s.size); + return s.startOffset + s.size.value + ( // $FlowIgnore + s.size.loc.end.column - s.size.loc.start.column); +} +export function shiftLoc(node, delta) { + // $FlowIgnore + node.loc.start.column += delta; // $FlowIgnore + + node.loc.end.column += delta; +} +export function shiftSection(ast, node, delta) { + if (node.type !== "SectionMetadata") { + throw new Error("Can not shift node " + JSON.stringify(node.type)); + } + + node.startOffset += delta; + + if (_typeof(node.size.loc) === "object") { + shiftLoc(node.size, delta); + } // Custom sections doesn't have vectorOfSize + + + if (_typeof(node.vectorOfSize) === "object" && _typeof(node.vectorOfSize.loc) === "object") { + shiftLoc(node.vectorOfSize, delta); + } + + var sectionName = node.section; // shift node locations within that section + + traverse(ast, { + Node: function Node(_ref3) { + var node = _ref3.node; + var section = getSectionForNode(node); + + if (section === sectionName && _typeof(node.loc) === "object") { + shiftLoc(node, delta); + } + } + }); +} +export function signatureForOpcode(object, name) { + var opcodeName = name; + + if (object !== undefined && object !== "") { + opcodeName = object + "." + name; + } + + var sign = signatures[opcodeName]; + + if (sign == undefined) { + // TODO: Uncomment this when br_table and others has been done + //throw new Error("Invalid opcode: "+opcodeName); + return [object, object]; + } + + return sign[0]; +} +export function getUniqueNameGenerator() { + var inc = {}; + return function () { + var prefix = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : "temp"; + + if (!(prefix in inc)) { + inc[prefix] = 0; + } else { + inc[prefix] = inc[prefix] + 1; + } + + return prefix + "_" + inc[prefix]; + }; +} +export function getStartByteOffset(n) { + // $FlowIgnore + if (typeof n.loc === "undefined" || typeof n.loc.start === "undefined") { + throw new Error( // $FlowIgnore + "Can not get byte offset without loc informations, node: " + String(n.id)); + } + + return n.loc.start.column; +} +export function getEndByteOffset(n) { + // $FlowIgnore + if (typeof n.loc === "undefined" || typeof n.loc.end === "undefined") { + throw new Error("Can not get byte offset without loc informations, node: " + n.type); + } + + return n.loc.end.column; +} +export function getFunctionBeginingByteOffset(n) { + if (!(n.body.length > 0)) { + throw new Error('n.body.length > 0' + " error: " + (undefined || "unknown")); + } + + var _n$body = _slicedToArray(n.body, 1), + firstInstruction = _n$body[0]; + + return getStartByteOffset(firstInstruction); +} +export function getEndBlockByteOffset(n) { + // $FlowIgnore + if (!(n.instr.length > 0 || n.body.length > 0)) { + throw new Error('n.instr.length > 0 || n.body.length > 0' + " error: " + (undefined || "unknown")); + } + + var lastInstruction; + + if (n.instr) { + // $FlowIgnore + lastInstruction = n.instr[n.instr.length - 1]; + } + + if (n.body) { + // $FlowIgnore + lastInstruction = n.body[n.body.length - 1]; + } + + if (!(_typeof(lastInstruction) === "object")) { + throw new Error('typeof lastInstruction === "object"' + " error: " + (undefined || "unknown")); + } + + // $FlowIgnore + return getStartByteOffset(lastInstruction); +} +export function getStartBlockByteOffset(n) { + // $FlowIgnore + if (!(n.instr.length > 0 || n.body.length > 0)) { + throw new Error('n.instr.length > 0 || n.body.length > 0' + " error: " + (undefined || "unknown")); + } + + var fistInstruction; + + if (n.instr) { + // $FlowIgnore + var _n$instr = _slicedToArray(n.instr, 1); + + fistInstruction = _n$instr[0]; + } + + if (n.body) { + // $FlowIgnore + var _n$body2 = _slicedToArray(n.body, 1); + + fistInstruction = _n$body2[0]; + } + + if (!(_typeof(fistInstruction) === "object")) { + throw new Error('typeof fistInstruction === "object"' + " error: " + (undefined || "unknown")); + } + + // $FlowIgnore + return getStartByteOffset(fistInstruction); +}
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