esbuild-wasm - npm Package Compare versions

Comparing version 0.1.16 to 0.1.17

package.json

 {
   "name": "esbuild-wasm",
-  "version": "0.1.16",
+  "version": "0.1.17",
   "description": "The cross-platform WebAssembly binary for esbuild, a JavaScript bundler.",
@@ -5,0 +5,0 @@ "repository": "https://github.com/evanw/esbuild",

wasm_exec.js

@@ -33,2 +33,8 @@ // Copyright 2018 The Go Authors. All rights reserved.
 
+	const enosys = () => {
+		const err = new Error("not implemented");
+		err.code = "ENOSYS";
+		return err;
+	};
+
 	if (!global.fs) {
@@ -49,3 +55,4 @@ let outputBuf = "";
 				if (offset !== 0 || length !== buf.length || position !== null) {
-					throw new Error("not implemented");
+					callback(enosys());
+					return;
 				}
@@ -55,18 +62,43 @@ const n = this.writeSync(fd, buf);
 			},
-			open(path, flags, mode, callback) {
-				const err = new Error("not implemented");
-				err.code = "ENOSYS";
-				callback(err);
-			},
-			read(fd, buffer, offset, length, position, callback) {
-				const err = new Error("not implemented");
-				err.code = "ENOSYS";
-				callback(err);
-			},
-			fsync(fd, callback) {
-				callback(null);
-			},
+			chmod(path, mode, callback) { callback(enosys()); },
+			chown(path, uid, gid, callback) { callback(enosys()); },
+			close(fd, callback) { callback(enosys()); },
+			fchmod(fd, mode, callback) { callback(enosys()); },
+			fchown(fd, uid, gid, callback) { callback(enosys()); },
+			fstat(fd, callback) { callback(enosys()); },
+			fsync(fd, callback) { callback(null); },
+			ftruncate(fd, length, callback) { callback(enosys()); },
+			lchown(path, uid, gid, callback) { callback(enosys()); },
+			link(path, link, callback) { callback(enosys()); },
+			lstat(path, callback) { callback(enosys()); },
+			mkdir(path, perm, callback) { callback(enosys()); },
+			open(path, flags, mode, callback) { callback(enosys()); },
+			read(fd, buffer, offset, length, position, callback) { callback(enosys()); },
+			readdir(path, callback) { callback(enosys()); },
+			readlink(path, callback) { callback(enosys()); },
+			rename(from, to, callback) { callback(enosys()); },
+			rmdir(path, callback) { callback(enosys()); },
+			stat(path, callback) { callback(enosys()); },
+			symlink(path, link, callback) { callback(enosys()); },
+			truncate(path, length, callback) { callback(enosys()); },
+			unlink(path, callback) { callback(enosys()); },
+			utimes(path, atime, mtime, callback) { callback(enosys()); },
 		};
 	}
 
+	if (!global.process) {
+		global.process = {
+			getuid() { return -1; },
+			getgid() { return -1; },
+			geteuid() { return -1; },
+			getegid() { return -1; },
+			getgroups() { throw enosys(); },
+			pid: -1,
+			ppid: -1,
+			umask() { throw enosys(); },
+			cwd() { throw enosys(); },
+			chdir() { throw enosys(); },
+		}
+	}
+
 	if (!global.crypto) {
@@ -119,15 +151,10 @@ const nodeCrypto = require("crypto");
 
-			const mem = () => {
-				// The buffer may change when requesting more memory.
-				return new DataView(this._inst.exports.mem.buffer);
-			}
-
 			const setInt64 = (addr, v) => {
-				mem().setUint32(addr + 0, v, true);
-				mem().setUint32(addr + 4, Math.floor(v / 4294967296), true);
+				this.mem.setUint32(addr + 0, v, true);
+				this.mem.setUint32(addr + 4, Math.floor(v / 4294967296), true);
 			}
 
 			const getInt64 = (addr) => {
-				const low = mem().getUint32(addr + 0, true);
-				const high = mem().getInt32(addr + 4, true);
+				const low = this.mem.getUint32(addr + 0, true);
+				const high = this.mem.getInt32(addr + 4, true);
 				return low + high * 4294967296;
@@ -137,3 +164,3 @@ }
 			const loadValue = (addr) => {
-				const f = mem().getFloat64(addr, true);
+				const f = this.mem.getFloat64(addr, true);
 				if (f === 0) {
@@ -146,3 +173,3 @@ return undefined;
 
-				const id = mem().getUint32(addr, true);
+				const id = this.mem.getUint32(addr, true);
 				return this._values[id];
@@ -156,12 +183,12 @@ }
 					if (isNaN(v)) {
-						mem().setUint32(addr + 4, nanHead, true);
-						mem().setUint32(addr, 0, true);
+						this.mem.setUint32(addr + 4, nanHead, true);
+						this.mem.setUint32(addr, 0, true);
 						return;
 					}
 					if (v === 0) {
-						mem().setUint32(addr + 4, nanHead, true);
-						mem().setUint32(addr, 1, true);
+						this.mem.setUint32(addr + 4, nanHead, true);
+						this.mem.setUint32(addr, 1, true);
 						return;
 					}
-					mem().setFloat64(addr, v, true);
+					this.mem.setFloat64(addr, v, true);
 					return;
@@ -172,38 +199,43 @@ }
 					case undefined:
-						mem().setFloat64(addr, 0, true);
+						this.mem.setFloat64(addr, 0, true);
 						return;
 					case null:
-						mem().setUint32(addr + 4, nanHead, true);
-						mem().setUint32(addr, 2, true);
+						this.mem.setUint32(addr + 4, nanHead, true);
+						this.mem.setUint32(addr, 2, true);
 						return;
 					case true:
-						mem().setUint32(addr + 4, nanHead, true);
-						mem().setUint32(addr, 3, true);
+						this.mem.setUint32(addr + 4, nanHead, true);
+						this.mem.setUint32(addr, 3, true);
 						return;
 					case false:
-						mem().setUint32(addr + 4, nanHead, true);
-						mem().setUint32(addr, 4, true);
+						this.mem.setUint32(addr + 4, nanHead, true);
+						this.mem.setUint32(addr, 4, true);
 						return;
 				}
 
-				let ref = this._refs.get(v);
-				if (ref === undefined) {
-					ref = this._values.length;
-					this._values.push(v);
-					this._refs.set(v, ref);
+				let id = this._ids.get(v);
+				if (id === undefined) {
+					id = this._idPool.pop();
+					if (id === undefined) {
+						id = this._values.length;
+					}
+					this._values[id] = v;
+					this._goRefCounts[id] = 0;
+					this._ids.set(v, id);
 				}
-				let typeFlag = 0;
+				this._goRefCounts[id]++;
+				let typeFlag = 1;
 				switch (typeof v) {
 					case "string":
-						typeFlag = 1;
+						typeFlag = 2;
 						break;
 					case "symbol":
-						typeFlag = 2;
+						typeFlag = 3;
 						break;
 					case "function":
-						typeFlag = 3;
+						typeFlag = 4;
 						break;
 				}
-				mem().setUint32(addr + 4, nanHead | typeFlag, true);
-				mem().setUint32(addr, ref, true);
+				this.mem.setUint32(addr + 4, nanHead | typeFlag, true);
+				this.mem.setUint32(addr, id, true);
 			}
@@ -243,7 +275,9 @@
 					"runtime.wasmExit": (sp) => {
-						const code = mem().getInt32(sp + 8, true);
+						const code = this.mem.getInt32(sp + 8, true);
 						this.exited = true;
 						delete this._inst;
 						delete this._values;
-						delete this._refs;
+						delete this._goRefCounts;
+						delete this._ids;
+						delete this._idPool;
 						this.exit(code);
@@ -256,16 +290,21 @@ },
 						const p = getInt64(sp + 16);
-						const n = mem().getInt32(sp + 24, true);
+						const n = this.mem.getInt32(sp + 24, true);
 						fs.writeSync(fd, new Uint8Array(this._inst.exports.mem.buffer, p, n));
 					},
 
-					// func nanotime() int64
-					"runtime.nanotime": (sp) => {
+					// func resetMemoryDataView()
+					"runtime.resetMemoryDataView": (sp) => {
+						this.mem = new DataView(this._inst.exports.mem.buffer);
+					},
+
+					// func nanotime1() int64
+					"runtime.nanotime1": (sp) => {
 						setInt64(sp + 8, (timeOrigin + performance.now()) * 1000000);
 					},
 
-					// func walltime() (sec int64, nsec int32)
-					"runtime.walltime": (sp) => {
+					// func walltime1() (sec int64, nsec int32)
+					"runtime.walltime1": (sp) => {
 						const msec = (new Date).getTime();
 						setInt64(sp + 8, msec / 1000);
-						mem().setInt32(sp + 16, (msec % 1000) * 1000000, true);
+						this.mem.setInt32(sp + 16, (msec % 1000) * 1000000, true);
 					},
@@ -289,3 +328,3 @@
 						));
-						mem().setInt32(sp + 16, id, true);
+						this.mem.setInt32(sp + 16, id, true);
 					},
@@ -295,3 +334,3 @@
 					"runtime.clearTimeoutEvent": (sp) => {
-						const id = mem().getInt32(sp + 8, true);
+						const id = this.mem.getInt32(sp + 8, true);
 						clearTimeout(this._scheduledTimeouts.get(id));
@@ -306,2 +345,14 @@ this._scheduledTimeouts.delete(id);
 
+					// func finalizeRef(v ref)
+					"syscall/js.finalizeRef": (sp) => {
+						const id = this.mem.getUint32(sp + 8, true);
+						this._goRefCounts[id]--;
+						if (this._goRefCounts[id] === 0) {
+							const v = this._values[id];
+							this._values[id] = null;
+							this._ids.delete(v);
+							this._idPool.push(id);
+						}
+					},
+
 					// func stringVal(value string) ref
@@ -324,2 +375,7 @@ "syscall/js.stringVal": (sp) => {
 
+					// func valueDelete(v ref, p string)
+					"syscall/js.valueDelete": (sp) => {
+						Reflect.deleteProperty(loadValue(sp + 8), loadString(sp + 16));
+					},
+
 					// func valueIndex(v ref, i int) ref
@@ -344,6 +400,6 @@ "syscall/js.valueIndex": (sp) => {
 							storeValue(sp + 56, result);
-							mem().setUint8(sp + 64, 1);
+							this.mem.setUint8(sp + 64, 1);
 						} catch (err) {
 							storeValue(sp + 56, err);
-							mem().setUint8(sp + 64, 0);
+							this.mem.setUint8(sp + 64, 0);
 						}
@@ -360,6 +416,6 @@ },
 							storeValue(sp + 40, result);
-							mem().setUint8(sp + 48, 1);
+							this.mem.setUint8(sp + 48, 1);
 						} catch (err) {
 							storeValue(sp + 40, err);
-							mem().setUint8(sp + 48, 0);
+							this.mem.setUint8(sp + 48, 0);
 						}
@@ -376,6 +432,6 @@ },
 							storeValue(sp + 40, result);
-							mem().setUint8(sp + 48, 1);
+							this.mem.setUint8(sp + 48, 1);
 						} catch (err) {
 							storeValue(sp + 40, err);
-							mem().setUint8(sp + 48, 0);
+							this.mem.setUint8(sp + 48, 0);
 						}
@@ -404,3 +460,3 @@ },
 					"syscall/js.valueInstanceOf": (sp) => {
-						mem().setUint8(sp + 24, loadValue(sp + 8) instanceof loadValue(sp + 16));
+						this.mem.setUint8(sp + 24, loadValue(sp + 8) instanceof loadValue(sp + 16));
 					},
@@ -413,3 +469,3 @@
 						if (!(src instanceof Uint8Array)) {
-							mem().setUint8(sp + 48, 0);
+							this.mem.setUint8(sp + 48, 0);
 							return;
@@ -420,3 +476,3 @@ }
 						setInt64(sp + 40, toCopy.length);
-						mem().setUint8(sp + 48, 1);
+						this.mem.setUint8(sp + 48, 1);
 					},
@@ -429,3 +485,3 @@
 						if (!(dst instanceof Uint8Array)) {
-							mem().setUint8(sp + 48, 0);
+							this.mem.setUint8(sp + 48, 0);
 							return;
@@ -436,3 +492,3 @@ }
 						setInt64(sp + 40, toCopy.length);
-						mem().setUint8(sp + 48, 1);
+						this.mem.setUint8(sp + 48, 1);
 					},
@@ -449,3 +505,4 @@
 			this._inst = instance;
-			this._values = [ // TODO: garbage collection
+			this.mem = new DataView(this._inst.exports.mem.buffer);
+			this._values = [ // JS values that Go currently has references to, indexed by reference id
 				NaN,
@@ -459,7 +516,7 @@ 0,
 			];
-			this._refs = new Map();
-			this.exited = false;
+			this._goRefCounts = []; // number of references that Go has to a JS value, indexed by reference id
+			this._ids = new Map();  // mapping from JS values to reference ids
+			this._idPool = [];      // unused ids that have been garbage collected
+			this.exited = false;    // whether the Go program has exited
 
-			const mem = new DataView(this._inst.exports.mem.buffer)
-
 			// Pass command line arguments and environment variables to WebAssembly by writing them to the linear memory.
@@ -471,3 +528,3 @@ let offset = 4096;
 				const bytes = encoder.encode(str + "\0");
-				new Uint8Array(mem.buffer, offset, bytes.length).set(bytes);
+				new Uint8Array(this.mem.buffer, offset, bytes.length).set(bytes);
 				offset += bytes.length;
@@ -486,13 +543,14 @@ if (offset % 8 !== 0) {
 			});
+			argvPtrs.push(0);
 
 			const keys = Object.keys(this.env).sort();
-			argvPtrs.push(keys.length);
 			keys.forEach((key) => {
 				argvPtrs.push(strPtr(`${key}=${this.env[key]}`));
 			});
+			argvPtrs.push(0);
 
 			const argv = offset;
 			argvPtrs.forEach((ptr) => {
-				mem.setUint32(offset, ptr, true);
-				mem.setUint32(offset + 4, 0, true);
+				this.mem.setUint32(offset, ptr, true);
+				this.mem.setUint32(offset + 4, 0, true);
 				offset += 8;
@@ -499,0 +557,0 @@ });

New alerts

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Found 1 instance in 1 package

Fixed alerts

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License

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No README

Quality

Package does not have a README. This may indicate a failed publish or a low quality package.

Found 1 instance in 1 package

Improved metrics

Number of package files

5

increased by25%

Lines of code

528

increased by11.63%

Number of medium quality alerts

0

decreased by-100%

Number of lines in readme file

4

increased byInfinity%

Worsened metrics

Total package byte prevSize

4482592

decreased by-2.73%

No dependency changes