/
release.js
41 lines (41 loc) · 1.57 KB
/
release.js
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async function instantiate(module, imports = {}) {
const adaptedImports = {
env: Object.assign(Object.create(globalThis), imports.env || {}, {
abort(message, fileName, lineNumber, columnNumber) {
// ~lib/builtins/abort(~lib/string/String | null?, ~lib/string/String | null?, u32?, u32?) => void
message = __liftString(message >>> 0);
fileName = __liftString(fileName >>> 0);
lineNumber = lineNumber >>> 0;
columnNumber = columnNumber >>> 0;
(() => {
// @external.js
throw Error(`${message} in ${fileName}:${lineNumber}:${columnNumber}`);
})();
},
}),
};
const { exports } = await WebAssembly.instantiate(module, adaptedImports);
const memory = exports.memory || imports.env.memory;
function __liftString(pointer) {
if (!pointer) return null;
const
end = pointer + new Uint32Array(memory.buffer)[pointer - 4 >>> 2] >>> 1,
memoryU16 = new Uint16Array(memory.buffer);
let
start = pointer >>> 1,
string = "";
while (end - start > 1024) string += String.fromCharCode(...memoryU16.subarray(start, start += 1024));
return string + String.fromCharCode(...memoryU16.subarray(start, end));
}
return exports;
}
export const {
memory,
perlin
} = await (async url => instantiate(
await (async () => {
try { return await globalThis.WebAssembly.compileStreaming(globalThis.fetch(url)); }
catch { return globalThis.WebAssembly.compile(await (await import("node:fs/promises")).readFile(url)); }
})(), {
}
))(new URL("release.wasm", import.meta.url));