How to use wasmparser - 4 common examples
To help you get started, we’ve selected a few wasmparser examples, based on popular ways it is used in public projects.
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firefox-devtools / debugger / src / utils / wasm.js View on Github 
function maybeWasmSectionNameResolver(data: Uint8Array) {
try {
const parser = new BinaryReader();
parser.setData(data.buffer, 0, data.length);
const reader = new NameSectionReader();
reader.read(parser);
return reader.hasValidNames() ? reader.getNameResolver() : null;
} catch (ex) {
// Ignoring any errors during names section retrival.
return null;
}
}function maybeWasmSectionNameResolver(data: Uint8Array) {
try {
const parser = new BinaryReader();
parser.setData(data.buffer, 0, data.length);
const reader = new NameSectionReader();
reader.read(parser);
return reader.hasValidNames() ? reader.getNameResolver() : null;
} catch (ex) {
// Ignoring any errors during names section retrival.
return null;
}
}export function getWasmText(sourceId: string, data: Uint8Array) {
const nameResolver = maybeWasmSectionNameResolver(data);
const parser = new BinaryReader();
parser.setData(data.buffer, 0, data.length);
const dis = new WasmDisassembler();
if (nameResolver) {
dis.nameResolver = nameResolver;
}
dis.addOffsets = true;
const done = dis.disassembleChunk(parser);
let result = dis.getResult();
if (result.lines.length === 0) {
result = { lines: ["No luck with wast conversion"], offsets: [0], done };
}
const offsets = result.offsets;
const lines = [];
for (let i = 0; i < offsets.length; i++) {
lines[offsets[i]] = i;export function getWasmText(sourceId: string, data: Uint8Array) {
const nameResolver = maybeWasmSectionNameResolver(data);
const parser = new BinaryReader();
parser.setData(data.buffer, 0, data.length);
const dis = new WasmDisassembler();
if (nameResolver) {
dis.nameResolver = nameResolver;
}
dis.addOffsets = true;
const done = dis.disassembleChunk(parser);
let result = dis.getResult();
if (result.lines.length === 0) {
result = { lines: ["No luck with wast conversion"], offsets: [0], done };
}
const offsets = result.offsets;
const lines = [];
for (let i = 0; i < offsets.length; i++) {
lines[offsets[i]] = i;
}
