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melody_wasm.js
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melody_wasm.js
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let wasm;
const cachedTextDecoder = new TextDecoder("utf-8", {
ignoreBOM: true,
fatal: true,
});
cachedTextDecoder.decode();
let cachegetUint8Memory0 = null;
function getUint8Memory0() {
if (
cachegetUint8Memory0 === null ||
cachegetUint8Memory0.buffer !== wasm.memory.buffer
) {
cachegetUint8Memory0 = new Uint8Array(wasm.memory.buffer);
}
return cachegetUint8Memory0;
}
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 cachegetInt32Memory0 = null;
function getInt32Memory0() {
if (
cachegetInt32Memory0 === null ||
cachegetInt32Memory0.buffer !== wasm.memory.buffer
) {
cachegetInt32Memory0 = new Int32Array(wasm.memory.buffer);
}
return cachegetInt32Memory0;
}
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
*import init, { compiler } from "https://deno.land/x/melody/melody_wasm.js";
*
*await init();
*
*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;
}
}
}
async function init(input) {
if (typeof input === "undefined") {
input = new URL("melody_wasm_bg.wasm", import.meta.url);
}
const imports = {};
imports.wbg = {};
imports.wbg.__wbindgen_error_new = function (arg0, arg1) {
const ret = new Error(getStringFromWasm0(arg0, arg1));
return addHeapObject(ret);
};
if (
typeof input === "string" ||
(typeof Request === "function" && input instanceof Request) ||
(typeof URL === "function" && input instanceof URL)
) {
input = fetch(input);
}
const { instance, module } = await load(await input, imports);
wasm = instance.exports;
init.__wbindgen_wasm_module = module;
return wasm;
}
export default init;