diff options
Diffstat (limited to 'node_modules/@webassemblyjs/wasm-edit/esm/index.js')
-rw-r--r-- | node_modules/@webassemblyjs/wasm-edit/esm/index.js | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/node_modules/@webassemblyjs/wasm-edit/esm/index.js b/node_modules/@webassemblyjs/wasm-edit/esm/index.js deleted file mode 100644 index 6ed9d53..0000000 --- a/node_modules/@webassemblyjs/wasm-edit/esm/index.js +++ /dev/null @@ -1,114 +0,0 @@ -import { decode } from "@webassemblyjs/wasm-parser"; -import { traverse } from "@webassemblyjs/ast"; -import { cloneNode } from "@webassemblyjs/ast/lib/clone"; -import { shrinkPaddedLEB128 } from "@webassemblyjs/wasm-opt"; -import { getSectionForNode } from "@webassemblyjs/helper-wasm-bytecode"; -import constants from "@webassemblyjs/helper-wasm-bytecode"; -import { applyOperations } from "./apply"; - -function hashNode(node) { - return JSON.stringify(node); -} - -function preprocess(ab) { - var optBin = shrinkPaddedLEB128(new Uint8Array(ab)); - return optBin.buffer; -} - -function sortBySectionOrder(nodes) { - var originalOrder = new Map(); - var _iteratorNormalCompletion = true; - var _didIteratorError = false; - var _iteratorError = undefined; - - try { - for (var _iterator = nodes[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) { - var _node = _step.value; - originalOrder.set(_node, originalOrder.size); - } - } catch (err) { - _didIteratorError = true; - _iteratorError = err; - } finally { - try { - if (!_iteratorNormalCompletion && _iterator.return != null) { - _iterator.return(); - } - } finally { - if (_didIteratorError) { - throw _iteratorError; - } - } - } - - nodes.sort(function (a, b) { - var sectionA = getSectionForNode(a); - var sectionB = getSectionForNode(b); - var aId = constants.sections[sectionA]; - var bId = constants.sections[sectionB]; - - if (typeof aId !== "number" || typeof bId !== "number") { - throw new Error("Section id not found"); - } - - if (aId === bId) { - // $FlowIgnore originalOrder is filled for all nodes - return originalOrder.get(a) - originalOrder.get(b); - } - - return aId - bId; - }); -} - -export function edit(ab, visitors) { - ab = preprocess(ab); - var ast = decode(ab); - return editWithAST(ast, ab, visitors); -} -export function editWithAST(ast, ab, visitors) { - var operations = []; - var uint8Buffer = new Uint8Array(ab); - var nodeBefore; - - function before(type, path) { - nodeBefore = cloneNode(path.node); - } - - function after(type, path) { - if (path.node._deleted === true) { - operations.push({ - kind: "delete", - node: path.node - }); // $FlowIgnore - } else if (hashNode(nodeBefore) !== hashNode(path.node)) { - operations.push({ - kind: "update", - oldNode: nodeBefore, - node: path.node - }); - } - } - - traverse(ast, visitors, before, after); - uint8Buffer = applyOperations(ast, uint8Buffer, operations); - return uint8Buffer.buffer; -} -export function add(ab, newNodes) { - ab = preprocess(ab); - var ast = decode(ab); - return addWithAST(ast, ab, newNodes); -} -export function addWithAST(ast, ab, newNodes) { - // Sort nodes by insertion order - sortBySectionOrder(newNodes); - var uint8Buffer = new Uint8Array(ab); // Map node into operations - - var operations = newNodes.map(function (n) { - return { - kind: "add", - node: n - }; - }); - uint8Buffer = applyOperations(ast, uint8Buffer, operations); - return uint8Buffer.buffer; -}
\ No newline at end of file |