17 lines
774 B
TypeScript
17 lines
774 B
TypeScript
const wasmCode = await Deno.readFile("./decodeqr/target/wasm32-unknown-unknown/release/decodeqr.wasm");
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const wasmModule = new WebAssembly.Module(wasmCode);
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const wasmInstance = new WebAssembly.Instance(wasmModule);
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const linearMemory = wasmInstance.exports.memory;
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// from https://tilman.xyz/blog/2019/12/building-webassembly-for-deno/
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function readString(memory, ptr) {
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const mem = new Uint8Array(memory.buffer, ptr);
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let length;
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for (length = 0; mem[length] !== 0; length ++);
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return new TextDecoder("utf-8").decode(new Uint8Array(mem.buffer, ptr, length));
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}
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console.log("DECODED:\n" + readString(linearMemory, wasmInstance.exports.parse_default_qr()));
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console.log("DECODED:\n" + readString(linearMemory, wasmInstance.exports.parse_default_qr_2()));
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