Merge branch 'master' into parser

Author: willemneal

NOTICE

@@ -10,6 +10,7 @@ under the licensing terms detailed in LICENSE:
 * Alan Pierce <[email protected]>
 * Palmer <[email protected]>
 * Linus Unnebäck <[email protected]>
+* Joshua Tenner <[email protected]>
 
 Portions of this software are derived from third-party works licensed under
 the following terms:

README.md

@@ -57,10 +57,10 @@ $> npm link
 Examples
 --------
 
-* **[Conway's Game of Life](./examples/game-of-life)** [ [demo](https://rawgit.com/AssemblyScript/assemblyscript/master/examples/game-of-life/index.html) | [fiddle](https://webassembly.studio/?f=gvuw4enb3qk) ]<br />
+* **[Conway's Game of Life](./examples/game-of-life)** [ [demo](https://assemblyscript.github.io/assemblyscript/examples/game-of-life) | [fiddle](https://webassembly.studio/?f=gvuw4enb3qk) ]<br />
   Continuously updates the cellular automaton and visualizes its state on a canvas.
 
-* **[Mandelbrot Set](./examples/mandelbrot)** [ [demo](https://rawgit.com/AssemblyScript/assemblyscript/master/examples/mandelbrot/index.html) | [fiddle](https://webassembly.studio/?f=m6hbiw9wyq) ]<br />
+* **[Mandelbrot Set](./examples/mandelbrot)** [ [demo](https://assemblyscript.github.io/assemblyscript/examples/mandelbrot) | [fiddle](https://webassembly.studio/?f=m6hbiw9wyq) ]<br />
   Renders the Mandelbrot set to a canvas.
 
 * **[i64 polyfill](./examples/i64-polyfill)**<br />
@@ -72,7 +72,7 @@ Examples
 * **[WASM parser](./lib/parse)**<br />
   A WebAssembly binary parser in WebAssembly.
 
-* **[N-body system](./examples/n-body)** [ [demo](https://rawgit.com/AssemblyScript/assemblyscript/master/examples/n-body/index.html) ]<br />
+* **[N-body system](./examples/n-body)** [ [demo](https://assemblyscript.github.io/assemblyscript/examples/n-body) ]<br />
   An implementation of the N-body system from the [Computer Language Benchmarks Game](https://benchmarksgame-team.pages.debian.net/benchmarksgame/).
 
 Building

cli/asc.d.ts

@@ -55,11 +55,11 @@ interface CompilerOptions {
   /** Standard error stream to use. */
   stderr?: OutputStream;
   /** Reads a file from disk (or memory). */
-  readFile?: (name: string) => string | null;
+  readFile?: (filename: string, baseDir: string) => string | null;
   /** Writes a file to disk (or memory). */
-  writeFile?: (name: string, contents: Uint8Array) => void;
+  writeFile?: (filename: string, contents: Uint8Array, baseDir: string) => void;
   /** Lists all files within a directory. */
-  listFiles?: (dir: string) => string[] | null;
+  listFiles?: (dirname: string, baseDir: string) => string[] | null;
 }
 
 /** Convenience function that parses and compiles source strings directly. */

cli/asc.js

@@ -96,9 +96,7 @@ exports.compileString = async (sources, options) => {
   if (typeof sources === "string") sources = { "input.ts": sources };
   const output = Object.create({
     stdout: createMemoryStream(),
-    stderr: createMemoryStream(),
-    binary: null,
-    text: null
+    stderr: createMemoryStream()
   });
   debugger;
   var argv = [];
@@ -278,7 +276,7 @@ exports.main = async function main(argv, options, callback) {
       }
       for (let j = 0, l = libFiles.length; j < l; ++j) {
         let libPath = libFiles[j];
-        let libText = await readFile(path.join(libDir, libPath));
+        let libText = readFile(libPath, libDir);
         if (libText === null) return callback(Error("Library file '" + libPath + "' not found."));
         stats.parseCount++;
         stats.parseTime += measure(() => {
@@ -293,35 +291,10 @@ exports.main = async function main(argv, options, callback) {
     }
   }
 
-  // Include entry files
-  for (let i = 0, k = argv.length; i < k; ++i) {
-    const filename = argv[i];
-    if (filename == "undefined") continue;
-
-    let sourcePath = String(filename).replace(/\\/g, "/").replace(/(\.ts|\/)$/, "");
-
-    // Try entryPath.ts, then entryPath/index.ts
-    let sourceText = await readFile(path.join(baseDir, sourcePath) + ".ts");
-    if (sourceText === null) {
-      sourceText = await readFile(path.join(baseDir, sourcePath, "index.ts"));
-      if (sourceText === null) {
-        return callback(Error("Entry file '" + sourcePath + ".ts' not found."));
-      } else {
-        sourcePath += "/index.ts";
-      }
-    } else {
-      sourcePath += ".ts";
-    }
-    debugger;
-
-    stats.parseCount++;
-    stats.parseTime += measure(() => {
-      parser = assemblyscript.parseFile(sourceText, sourcePath, true, parser);
-    });
-
-    // Process backlog
+  // Parses the backlog of imported files after including entry files
+  function parseBacklog() {
+    var sourcePath, sourceText;
     while ((sourcePath = parser.nextFile()) != null) {
-      let found = false;
 
       // Load library file if explicitly requested
       if (sourcePath.startsWith(exports.libraryPrefix)) {
@@ -335,13 +308,12 @@ exports.main = async function main(argv, options, callback) {
           sourcePath = exports.libraryPrefix + indexName + ".ts";
         } else {
           for (let i = 0, k = customLibDirs.length; i < k; ++i) {
-            const dir = customLibDirs[i];
-            sourceText = await readFile(path.join(dir, plainName + ".ts"));
+            sourceText = readFile(plainName + ".ts", customLibDirs[i]);
             if (sourceText !== null) {
               sourcePath = exports.libraryPrefix + plainName + ".ts";
               break;
             } else {
-              sourceText = await readFile(path.join(dir, indexName + ".ts"));
+              sourceText = readFile(indexName + ".ts", customLibDirs[i]);
               if (sourceText !== null) {
                 sourcePath = exports.libraryPrefix + indexName + ".ts";
                 break;
@@ -354,11 +326,11 @@ exports.main = async function main(argv, options, callback) {
       } else {
         const plainName = sourcePath;
         const indexName = sourcePath + "/index";
-        sourceText = await readFile(path.join(baseDir, plainName + ".ts"));
+        sourceText = readFile(plainName + ".ts", baseDir);
         if (sourceText !== null) {
           sourcePath = plainName + ".ts";
         } else {
-          sourceText = await readFile(path.join(baseDir, indexName + ".ts"));
+          sourceText = readFile(indexName + ".ts", baseDir);
           if (sourceText !== null) {
             sourcePath = indexName + ".ts";
           } else if (!plainName.startsWith(".")) {
@@ -371,12 +343,12 @@ exports.main = async function main(argv, options, callback) {
             } else {
               for (let i = 0, k = customLibDirs.length; i < k; ++i) {
                 const dir = customLibDirs[i];
-                sourceText = await readFile(path.join(dir, plainName + ".ts"));
+                sourceText = readFile(plainName + ".ts", customLibDirs[i]);
                 if (sourceText !== null) {
                   sourcePath = exports.libraryPrefix + plainName + ".ts";
                   break;
                 } else {
-                  sourceText = await readFile(path.join(dir, indexName + ".ts"));
+                  sourceText = readFile(indexName + ".ts", customLibDirs[i]);
                   if (sourceText !== null) {
                     sourcePath = exports.libraryPrefix + indexName + ".ts";
                     break;
@@ -400,7 +372,38 @@ exports.main = async function main(argv, options, callback) {
     }
   }
 
+  // Include entry files
+  for (let i = 0, k = argv.length; i < k; ++i) {
+    const filename = argv[i];
+
+    let sourcePath = String(filename).replace(/\\/g, "/").replace(/(\.ts|\/)$/, "");
+
+    // Try entryPath.ts, then entryPath/index.ts
+    let sourceText = readFile(sourcePath + ".ts", baseDir);
+    if (sourceText === null) {
+      sourceText = readFile(sourcePath + "/index.ts", baseDir);
+      if (sourceText === null) {
+        return callback(Error("Entry file '" + sourcePath + ".ts' not found."));
+      } else {
+        sourcePath += "/index.ts";
+      }
+    } else {
+      sourcePath += ".ts";
+    }
+
+    stats.parseCount++;
+    stats.parseTime += measure(() => {
+      parser = assemblyscript.parseFile(sourceText, sourcePath, true, parser);
+    });
+    let code = parseBacklog();
+    if (code) return code;
+  }
+
   applyTransform("afterParse", parser);
+  {
+    let code = parseBacklog();
+    if (code) return code;
+  }
 
   // Finish parsing
   const program = assemblyscript.finishParsing(parser);
@@ -578,7 +581,7 @@ exports.main = async function main(argv, options, callback) {
       });
 
       if (args.binaryFile.length) {
-        await writeFile(path.join(baseDir, args.binaryFile), wasm.output);
+        writeFile(args.binaryFile, wasm.output, baseDir);
       } else {
         writeStdout(wasm.output);
         hasStdout = true;
@@ -598,27 +601,23 @@ exports.main = async function main(argv, options, callback) {
                 text = exports.libraryFiles[stdName];
               } else {
                 for (let i = 0, k = customLibDirs.length; i < k; ++i) {
-                  text = await readFile(path.join(
-                    customLibDirs[i],
-                    name.substring(exports.libraryPrefix.length))
-                  );
+                  text = readFile(name.substring(exports.libraryPrefix.length), customLibDirs[i]);
                   if (text !== null) break;
                 }
               }
             } else {
-              text = await readFile(path.join(baseDir, name));
+              text = readFile(name, baseDir);
             }
             if (text === null) {
               return callback(Error("Source file '" + name + "' not found."));
             }
             if (!sourceMap.sourceContents) sourceMap.sourceContents = [];
             sourceMap.sourceContents[index] = text;
           });
-          await writeFile(path.join(
-            baseDir,
+          writeFile(path.join(
             path.dirname(args.binaryFile),
             path.basename(sourceMapURL)
-          ), JSON.stringify(sourceMap));
+          ).replace(/^\.\//, ""), JSON.stringify(sourceMap), baseDir);
         } else {
           stderr.write("Skipped source map (stdout already occupied)" + EOL);
         }
@@ -633,7 +632,7 @@ exports.main = async function main(argv, options, callback) {
         stats.emitTime += measure(() => {
           asm = module.toAsmjs();
         });
-        await writeFile(path.join(baseDir, args.asmjsFile), asm);
+        writeFile(args.asmjsFile, asm, baseDir);
       } else if (!hasStdout) {
         stats.emitCount++;
         stats.emitTime += measure(() => {
@@ -653,7 +652,7 @@ exports.main = async function main(argv, options, callback) {
         stats.emitTime += measure(() => {
           idl = assemblyscript.buildIDL(program);
         });
-        await writeFile(path.join(baseDir, args.idlFile), idl);
+        writeFile(args.idlFile, idl, baseDir);
       } else if (!hasStdout) {
         stats.emitCount++;
         stats.emitTime += measure(() => {
@@ -673,7 +672,7 @@ exports.main = async function main(argv, options, callback) {
         stats.emitTime += measure(() => {
           tsd = assemblyscript.buildTSD(program);
         });
-        await writeFile(path.join(baseDir, args.tsdFile), tsd);
+        writeFile(args.tsdFile, tsd, baseDir);
       } else if (!hasStdout) {
         stats.emitCount++;
         stats.emitTime += measure(() => {
@@ -693,7 +692,7 @@ exports.main = async function main(argv, options, callback) {
         stats.emitTime += measure(() => {
           wat = module.toText();
         });
-        await writeFile(path.join(baseDir, args.textFile), wat);
+        writeFile(args.textFile, wat, baseDir);
       } else if (!hasStdout) {
         stats.emitCount++;
         stats.emitTime += measure(() => {
@@ -710,28 +709,28 @@ exports.main = async function main(argv, options, callback) {
   }
   return callback(null);
 
-  function readFileNode(filename) {
+  function readFileNode(filename, baseDir) {
     try {
       let text;
       stats.readCount++;
       stats.readTime += measure(() => {
-        text = fs.readFileSync(filename, { encoding: "utf8" });
+        text = fs.readFileSync(path.join(baseDir, filename), { encoding: "utf8" });
       });
       return text;
     } catch (e) {
       return null;
     }
   }
 
-  function writeFileNode(filename, contents) {
+  function writeFileNode(filename, contents, baseDir) {
     try {
       stats.writeCount++;
       stats.writeTime += measure(() => {
-        mkdirp(path.dirname(filename));
+        mkdirp(path.join(baseDir, path.dirname(filename)));
         if (typeof contents === "string") {
-          fs.writeFileSync(filename, contents, { encoding: "utf8" } );
+          fs.writeFileSync(path.join(baseDir, filename), contents, { encoding: "utf8" } );
         } else {
-          fs.writeFileSync(filename, contents);
+          fs.writeFileSync(path.join(baseDir, filename), contents);
         }
       });
       return true;
@@ -740,11 +739,11 @@ exports.main = async function main(argv, options, callback) {
     }
   }
 
-  function listFilesNode(dirname) {
+  function listFilesNode(dirname, baseDir) {
     var files;
     try {
       stats.readTime += measure(() => {
-        files = fs.readdirSync(dirname).filter(file => /^(?!.*\.d\.ts$).*\.ts$/.test(file));
+        files = fs.readdirSync(path.join(baseDir, dirname)).filter(file => /^(?!.*\.d\.ts$).*\.ts$/.test(file));
       });
       return files;
     } catch (e) {

dist/asc.js

@@ -1,6 +1,7 @@
 "use strict";
 
 const hasBigInt64 = typeof BigUint64Array !== "undefined";
+const thisPtr = Symbol();
 
 /** Gets a string from an U32 and an U16 view on a memory. */
 function getStringImpl(U32, U16, ptr) {
@@ -265,11 +266,11 @@ function demangle(exports, baseModule) {
       let classElem = curr[className];
       if (typeof classElem === "undefined" || !classElem.prototype) {
         let ctor = function(...args) {
-          return ctor.wrap(ctor.prototype.constructor(...args));
+          return ctor.wrap(ctor.prototype.constructor(0, ...args));
         };
         ctor.prototype = {};
         ctor.wrap = function(thisValue) {
-          return Object.create(ctor.prototype, { "this": { value: thisValue, writable: false } });
+          return Object.create(ctor.prototype, { [thisPtr]: { value: thisValue, writable: false } });
         };
         if (classElem) Object.getOwnPropertyNames(classElem).forEach(name =>
           Object.defineProperty(ctor, name, Object.getOwnPropertyDescriptor(classElem, name))
@@ -283,13 +284,22 @@ function demangle(exports, baseModule) {
           let getter = exports[internalName.replace("set:", "get:")];
           let setter = exports[internalName.replace("get:", "set:")];
           Object.defineProperty(curr, name, {
-            get: function() { return getter(this.this); },
-            set: function(value) { setter(this.this, value); },
+            get: function() { return getter(this[thisPtr]); },
+            set: function(value) { setter(this[thisPtr], value); },
             enumerable: true
           });
         }
       } else {
-        curr[name] = wrapFunction(elem, setargc);
+        if (name === 'constructor') {
+          curr[name] = wrapFunction(elem, setargc);
+        } else { // for methods
+          Object.defineProperty(curr, name, {
+            value: function (...args) {
+              setargc(args.length);
+              return elem(this[thisPtr], ...args);
+            }
+          });
+        }
       }
     } else {
       if (/^(get|set):/.test(name)) {

dist/asc.js.map

@@ -60,5 +60,14 @@ assert.strictEqual(fn(2), 4);
 ptr = module.newFunction(module.varadd);
 assert.strictEqual(module.calladd(ptr, 2, 3), 5);
 
+// should be able to use a class
+var car = new module.Car(5);
+assert.strictEqual(car.numDoors, 5);
+assert.strictEqual(car.isDoorsOpen, 0);
+car.openDoors();
+assert.strictEqual(car.isDoorsOpen, 1);
+car.closeDoors();
+assert.strictEqual(car.isDoorsOpen, 0);
+
 // should be able to use trace
-module.dotrace(42);
+module.dotrace(42);

dist/assemblyscript.js

@@ -2,5 +2,4 @@ Portable compiler sources that compile to both JavaScript using `tsc` and, event
 
 Architecture
 ------------
-
-![](https://rawgit.com/AssemblyScript/assemblyscript/master/media/architecture.svg)
+![](https://assemblyscript.github.io/assemblyscript/media/architecture.svg)