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x/melody/melody_wasm.js

Melody is a language that compiles to regular expressions and aims to be more easily readable and maintainable
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let wasm;
const cachedTextDecoder = new TextDecoder("utf-8", { ignoreBOM: true, fatal: true,});
cachedTextDecoder.decode();
let cachedUint8Memory0;function getUint8Memory0() { if (cachedUint8Memory0.byteLength === 0) { cachedUint8Memory0 = new Uint8Array(wasm.memory.buffer); } return cachedUint8Memory0;}
function getStringFromWasm0(ptr, len) { return cachedTextDecoder.decode(getUint8Memory0().subarray(ptr, ptr + len));}
const heap = new Array(32).fill(undefined);
heap.push(undefined, null, true, false);
let heap_next = heap.length;
function addHeapObject(obj) { if (heap_next === heap.length) heap.push(heap.length + 1); const idx = heap_next; heap_next = heap[idx];
heap[idx] = obj; return idx;}
let WASM_VECTOR_LEN = 0;
const cachedTextEncoder = new TextEncoder("utf-8");
const encodeString = typeof cachedTextEncoder.encodeInto === "function" ? function (arg, view) { return cachedTextEncoder.encodeInto(arg, view); } : function (arg, view) { const buf = cachedTextEncoder.encode(arg); view.set(buf); return { read: arg.length, written: buf.length, }; };
function passStringToWasm0(arg, malloc, realloc) { if (realloc === undefined) { const buf = cachedTextEncoder.encode(arg); const ptr = malloc(buf.length); getUint8Memory0() .subarray(ptr, ptr + buf.length) .set(buf); WASM_VECTOR_LEN = buf.length; return ptr; }
let len = arg.length; let ptr = malloc(len);
const mem = getUint8Memory0();
let offset = 0;
for (; offset < len; offset++) { const code = arg.charCodeAt(offset); if (code > 0x7f) break; mem[ptr + offset] = code; }
if (offset !== len) { if (offset !== 0) { arg = arg.slice(offset); } ptr = realloc(ptr, len, (len = offset + arg.length * 3)); const view = getUint8Memory0().subarray(ptr + offset, ptr + len); const ret = encodeString(arg, view);
offset += ret.written; }
WASM_VECTOR_LEN = offset; return ptr;}
let cachedInt32Memory0;function getInt32Memory0() { if (cachedInt32Memory0.byteLength === 0) { cachedInt32Memory0 = new Int32Array(wasm.memory.buffer); } return cachedInt32Memory0;}
function getObject(idx) { return heap[idx];}
function dropObject(idx) { if (idx < 36) return; heap[idx] = heap_next; heap_next = idx;}
function takeObject(idx) { const ret = getObject(idx); dropObject(idx); return ret;}/** * *Compiles Melody source code to a regular expression * *# Errors * *Throws an error if a compilation error is encountered * *# Example * *```js *const source = ` * <start>; * * option of "v"; * * capture major { * some of <digit>; * } * * "."; * * capture minor { * some of <digit>; * } * * "."; * * capture patch { * some of <digit>; * } * * <end>; *`; * *try { * const output = compiler(source); * new RegExp(output).test("v1.1.1"); // true *} catch (error) { * // handle compilation error *} *``` * @param {string} source * @returns {string} */export function compiler(source) { try { const retptr = wasm.__wbindgen_add_to_stack_pointer(-16); const ptr0 = passStringToWasm0( source, wasm.__wbindgen_malloc, wasm.__wbindgen_realloc ); const len0 = WASM_VECTOR_LEN; wasm.compiler(retptr, ptr0, len0); var r0 = getInt32Memory0()[retptr / 4 + 0]; var r1 = getInt32Memory0()[retptr / 4 + 1]; var r2 = getInt32Memory0()[retptr / 4 + 2]; var r3 = getInt32Memory0()[retptr / 4 + 3]; var ptr1 = r0; var len1 = r1; if (r3) { ptr1 = 0; len1 = 0; throw takeObject(r2); } return getStringFromWasm0(ptr1, len1); } finally { wasm.__wbindgen_add_to_stack_pointer(16); wasm.__wbindgen_free(ptr1, len1); }}
async function load(module, imports) { if (typeof Response === "function" && module instanceof Response) { if (typeof WebAssembly.instantiateStreaming === "function") { try { return await WebAssembly.instantiateStreaming(module, imports); } catch (e) { if (module.headers.get("Content-Type") != "application/wasm") { console.warn( "`WebAssembly.instantiateStreaming` failed because your server does not serve wasm with `application/wasm` MIME type. Falling back to `WebAssembly.instantiate` which is slower. Original error:\n", e ); } else { throw e; } } }
const bytes = await module.arrayBuffer(); return await WebAssembly.instantiate(bytes, imports); } else { const instance = await WebAssembly.instantiate(module, imports);
if (instance instanceof WebAssembly.Instance) { return { instance, module }; } else { return instance; } }}
function getImports() { const imports = {}; imports.wbg = {}; imports.wbg.__wbindgen_error_new = function (arg0, arg1) { const ret = new Error(getStringFromWasm0(arg0, arg1)); return addHeapObject(ret); };
return imports;}
function initMemory(imports, maybe_memory) {}
function finalizeInit(instance, module) { wasm = instance.exports; init.__wbindgen_wasm_module = module; cachedInt32Memory0 = new Int32Array(wasm.memory.buffer); cachedUint8Memory0 = new Uint8Array(wasm.memory.buffer);
return wasm;}
function initSync(bytes) { const imports = getImports();
initMemory(imports);
const module = new WebAssembly.Module(bytes); const instance = new WebAssembly.Instance(module, imports);
return finalizeInit(instance, module);}
async function init(input) { if (typeof input === "undefined") { input = new URL("melody_wasm_bg.wasm", import.meta.url); } const imports = getImports();
if ( typeof input === "string" || (typeof Request === "function" && input instanceof Request) || (typeof URL === "function" && input instanceof URL) ) { input = fetch(input); }
initMemory(imports);
const { instance, module } = await load(await input, imports);
return finalizeInit(instance, module);}
export { initSync };export default init;