Add quickjs-2021-03-27 to third_party

third_party/quickjs/tests/bjson.c

@@ -0,0 +1,96 @@
+/*
+ * QuickJS: binary JSON module (test only)
+ * 
+ * Copyright (c) 2017-2019 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include "../quickjs-libc.h"
+#include "../cutils.h"
+
+static JSValue js_bjson_read(JSContext *ctx, JSValueConst this_val,
+                             int argc, JSValueConst *argv)
+{
+    uint8_t *buf;
+    uint64_t pos, len;
+    JSValue obj;
+    size_t size;
+    int flags;
+    
+    if (JS_ToIndex(ctx, &pos, argv[1]))
+        return JS_EXCEPTION;
+    if (JS_ToIndex(ctx, &len, argv[2]))
+        return JS_EXCEPTION;
+    buf = JS_GetArrayBuffer(ctx, &size, argv[0]);
+    if (!buf)
+        return JS_EXCEPTION;
+    if (pos + len > size)
+        return JS_ThrowRangeError(ctx, "array buffer overflow");
+    flags = 0;
+    if (JS_ToBool(ctx, argv[3]))
+        flags |= JS_READ_OBJ_REFERENCE;
+    obj = JS_ReadObject(ctx, buf + pos, len, flags);
+    return obj;
+}
+
+static JSValue js_bjson_write(JSContext *ctx, JSValueConst this_val,
+                              int argc, JSValueConst *argv)
+{
+    size_t len;
+    uint8_t *buf;
+    JSValue array;
+    int flags;
+    
+    flags = 0;
+    if (JS_ToBool(ctx, argv[1]))
+        flags |= JS_WRITE_OBJ_REFERENCE;
+    buf = JS_WriteObject(ctx, &len, argv[0], flags);
+    if (!buf)
+        return JS_EXCEPTION;
+    array = JS_NewArrayBufferCopy(ctx, buf, len);
+    js_free(ctx, buf);
+    return array;
+}
+
+static const JSCFunctionListEntry js_bjson_funcs[] = {
+    JS_CFUNC_DEF("read", 4, js_bjson_read ),
+    JS_CFUNC_DEF("write", 2, js_bjson_write ),
+};
+
+static int js_bjson_init(JSContext *ctx, JSModuleDef *m)
+{
+    return JS_SetModuleExportList(ctx, m, js_bjson_funcs,
+                                  countof(js_bjson_funcs));
+}
+
+#ifdef JS_SHARED_LIBRARY
+#define JS_INIT_MODULE js_init_module
+#else
+#define JS_INIT_MODULE js_init_module_bjson
+#endif
+
+JSModuleDef *JS_INIT_MODULE(JSContext *ctx, const char *module_name)
+{
+    JSModuleDef *m;
+    m = JS_NewCModule(ctx, module_name, js_bjson_init);
+    if (!m)
+        return NULL;
+    JS_AddModuleExportList(ctx, m, js_bjson_funcs, countof(js_bjson_funcs));
+    return m;
+}

third_party/quickjs/tests/test262.patch

@@ -0,0 +1,71 @@
+diff --git a/harness/atomicsHelper.js b/harness/atomicsHelper.js
+index 9c1217351e..3c24755558 100644
+--- a/harness/atomicsHelper.js
++++ b/harness/atomicsHelper.js
+@@ -227,10 +227,14 @@ $262.agent.waitUntil = function(typedArray, index, expected) {
+  *   }
+  */
+ $262.agent.timeouts = {
+-  yield: 100,
+-  small: 200,
+-  long: 1000,
+-  huge: 10000,
++//  yield: 100,
++//  small: 200,
++//  long: 1000,
++//  huge: 10000,
++  yield: 20,
++  small: 20,
++  long: 100,
++  huge: 1000,
+ };
+ 
+ /**
+diff --git a/harness/regExpUtils.js b/harness/regExpUtils.js
+index be7039fda0..7b38abf8df 100644
+--- a/harness/regExpUtils.js
++++ b/harness/regExpUtils.js
+@@ -6,24 +6,27 @@ description: |
+ defines: [buildString, testPropertyEscapes, matchValidator]
+ ---*/
+ 
++if ($262 && typeof $262.codePointRange === "function") {
++    /* use C function to build the codePointRange (much faster with
++       slow JS engines) */
++    codePointRange = $262.codePointRange;
++} else {
++    codePointRange = function codePointRange(start, end) {
++        const codePoints = [];
++        let length = 0;
++        for (codePoint = start; codePoint < end; codePoint++) {
++            codePoints[length++] = codePoint;
++        }
++        return String.fromCodePoint.apply(null, codePoints);
++    }
++}
++
+ function buildString({ loneCodePoints, ranges }) {
+-  const CHUNK_SIZE = 10000;
+-  let result = Reflect.apply(String.fromCodePoint, null, loneCodePoints);
+-  for (let i = 0; i < ranges.length; i++) {
+-    const range = ranges[i];
+-    const start = range[0];
+-    const end = range[1];
+-    const codePoints = [];
+-    for (let length = 0, codePoint = start; codePoint <= end; codePoint++) {
+-      codePoints[length++] = codePoint;
+-      if (length === CHUNK_SIZE) {
+-        result += Reflect.apply(String.fromCodePoint, null, codePoints);
+-        codePoints.length = length = 0;
+-      }
++    let result = String.fromCodePoint.apply(null, loneCodePoints);
++    for (const [start, end] of ranges) {
++        result += codePointRange(start, end + 1);
+     }
+-    result += Reflect.apply(String.fromCodePoint, null, codePoints);
+-  }
+-  return result;
++    return result;
+ }
+ 
+ function testPropertyEscapes(regex, string, expression) {

third_party/quickjs/tests/test_bignum.js

@@ -0,0 +1,326 @@
+"use strict";
+
+function assert(actual, expected, message) {
+    if (arguments.length == 1)
+        expected = true;
+
+    if (actual === expected)
+        return;
+
+    if (actual !== null && expected !== null
+    &&  typeof actual == 'object' && typeof expected == 'object'
+    &&  actual.toString() === expected.toString())
+        return;
+
+    throw Error("assertion failed: got |" + actual + "|" +
+                ", expected |" + expected + "|" +
+                (message ? " (" + message + ")" : ""));
+}
+
+function assertThrows(err, func)
+{
+    var ex;
+    ex = false;
+    try {
+        func();
+    } catch(e) {
+        ex = true;
+        assert(e instanceof err);
+    }
+    assert(ex, true, "exception expected");
+}
+
+// load more elaborate version of assert if available
+try { __loadScript("test_assert.js"); } catch(e) {}
+
+/*----------------*/
+
+function bigint_pow(a, n)
+{
+    var r, i;
+    r = 1n;
+    for(i = 0n; i < n; i++)
+        r *= a;
+    return r;
+}
+
+/* a must be < b */
+function test_less(a, b)
+{
+    assert(a < b);
+    assert(!(b < a));
+    assert(a <= b);
+    assert(!(b <= a));
+    assert(b > a);
+    assert(!(a > b));
+    assert(b >= a);
+    assert(!(a >= b));
+    assert(a != b);
+    assert(!(a == b));
+}
+
+/* a must be numerically equal to b */
+function test_eq(a, b)
+{
+    assert(a == b);
+    assert(b == a);
+    assert(!(a != b));
+    assert(!(b != a));
+    assert(a <= b);
+    assert(b <= a);
+    assert(!(a < b));
+    assert(a >= b);
+    assert(b >= a);
+    assert(!(a > b));
+}
+
+function test_bigint1()
+{
+    var a, r;
+
+    test_less(2n, 3n);
+    test_eq(3n, 3n);
+
+    test_less(2, 3n);
+    test_eq(3, 3n);
+
+    test_less(2.1, 3n);
+    test_eq(Math.sqrt(4), 2n);
+
+    a = bigint_pow(3n, 100n);
+    assert((a - 1n) != a);
+    assert(a == 515377520732011331036461129765621272702107522001n);
+    assert(a == 0x5a4653ca673768565b41f775d6947d55cf3813d1n);
+
+    r = 1n << 31n;
+    assert(r, 2147483648n, "1 << 31n === 2147483648n");
+    
+    r = 1n << 32n;
+    assert(r, 4294967296n, "1 << 32n === 4294967296n");
+}
+
+function test_bigint2()
+{
+    assert(BigInt(""), 0n);
+    assert(BigInt("  123"), 123n);
+    assert(BigInt("  123   "), 123n);
+    assertThrows(SyntaxError, () => { BigInt("+") } );
+    assertThrows(SyntaxError, () => { BigInt("-") } );
+    assertThrows(SyntaxError, () => { BigInt("\x00a") } );
+    assertThrows(SyntaxError, () => { BigInt("  123  r") } );
+}
+
+function test_divrem(div1, a, b, q)
+{
+    var div, divrem, t;
+    div = BigInt[div1];
+    divrem = BigInt[div1 + "rem"];
+    assert(div(a, b) == q);
+    t = divrem(a, b);
+    assert(t[0] == q);
+    assert(a == b * q + t[1]);
+}
+
+function test_idiv1(div, a, b, r)
+{
+    test_divrem(div, a, b, r[0]);
+    test_divrem(div, -a, b, r[1]);
+    test_divrem(div, a, -b, r[2]);
+    test_divrem(div, -a, -b, r[3]);
+}
+
+/* QuickJS BigInt extensions */
+function test_bigint_ext()
+{
+    var r;
+    assert(BigInt.floorLog2(0n) === -1n);
+    assert(BigInt.floorLog2(7n) === 2n);
+
+    assert(BigInt.sqrt(0xffffffc000000000000000n) === 17592185913343n);
+    r = BigInt.sqrtrem(0xffffffc000000000000000n);
+    assert(r[0] === 17592185913343n);
+    assert(r[1] === 35167191957503n);
+
+    test_idiv1("tdiv", 3n, 2n, [1n, -1n, -1n, 1n]);
+    test_idiv1("fdiv", 3n, 2n, [1n, -2n, -2n, 1n]);
+    test_idiv1("cdiv", 3n, 2n, [2n, -1n, -1n, 2n]);
+    test_idiv1("ediv", 3n, 2n, [1n, -2n, -1n, 2n]);
+}
+
+function test_bigfloat()
+{
+    var e, a, b, sqrt2;
+    
+    assert(typeof 1n === "bigint");
+    assert(typeof 1l === "bigfloat");
+    assert(1 == 1.0l);
+    assert(1 !== 1.0l);
+
+    test_less(2l, 3l);
+    test_eq(3l, 3l);
+
+    test_less(2, 3l);
+    test_eq(3, 3l);
+
+    test_less(2.1, 3l);
+    test_eq(Math.sqrt(9), 3l);
+    
+    test_less(2n, 3l);
+    test_eq(3n, 3l);
+
+    e = new BigFloatEnv(128);
+    assert(e.prec == 128);
+    a = BigFloat.sqrt(2l, e);
+    assert(a === BigFloat.parseFloat("0x1.6a09e667f3bcc908b2fb1366ea957d3e", 0, e));
+    assert(e.inexact === true);
+    assert(BigFloat.fpRound(a) == 0x1.6a09e667f3bcc908b2fb1366ea95l);
+    
+    b = BigFloatEnv.setPrec(BigFloat.sqrt.bind(null, 2), 128);
+    assert(a === b);
+
+    assert(BigFloat.isNaN(BigFloat(NaN)));
+    assert(BigFloat.isFinite(1l));
+    assert(!BigFloat.isFinite(1l/0l));
+
+    assert(BigFloat.abs(-3l) === 3l);
+    assert(BigFloat.sign(-3l) === -1l);
+
+    assert(BigFloat.exp(0.2l) === 1.2214027581601698339210719946396742l);
+    assert(BigFloat.log(3l) === 1.0986122886681096913952452369225256l);
+    assert(BigFloat.pow(2.1l, 1.6l) === 3.277561666451861947162828744873745l);
+    
+    assert(BigFloat.sin(-1l) === -0.841470984807896506652502321630299l);
+    assert(BigFloat.cos(1l) === 0.5403023058681397174009366074429766l);
+    assert(BigFloat.tan(0.1l) === 0.10033467208545054505808004578111154l);
+
+    assert(BigFloat.asin(0.3l) === 0.30469265401539750797200296122752915l);
+    assert(BigFloat.acos(0.4l) === 1.1592794807274085998465837940224159l);
+    assert(BigFloat.atan(0.7l) === 0.610725964389208616543758876490236l);
+    assert(BigFloat.atan2(7.1l, -5.1l) === 2.1937053809751415549388104628759813l);
+
+    assert(BigFloat.floor(2.5l) === 2l);
+    assert(BigFloat.ceil(2.5l) === 3l);
+    assert(BigFloat.trunc(-2.5l) === -2l);
+    assert(BigFloat.round(2.5l) === 3l);
+
+    assert(BigFloat.fmod(3l,2l) === 1l);
+    assert(BigFloat.remainder(3l,2l) === -1l);
+
+    /* string conversion */
+    assert((1234.125l).toString(), "1234.125");
+    assert((1234.125l).toFixed(2), "1234.13");
+    assert((1234.125l).toFixed(2, "down"), "1234.12");
+    assert((1234.125l).toExponential(), "1.234125e+3");
+    assert((1234.125l).toExponential(5), "1.23413e+3");
+    assert((1234.125l).toExponential(5, BigFloatEnv.RNDZ), "1.23412e+3");
+    assert((1234.125l).toPrecision(6), "1234.13");
+    assert((1234.125l).toPrecision(6, BigFloatEnv.RNDZ), "1234.12");
+
+    /* string conversion with binary base */
+    assert((0x123.438l).toString(16), "123.438");
+    assert((0x323.438l).toString(16), "323.438");
+    assert((0x723.438l).toString(16), "723.438");
+    assert((0xf23.438l).toString(16), "f23.438");
+    assert((0x123.438l).toFixed(2, BigFloatEnv.RNDNA, 16), "123.44");
+    assert((0x323.438l).toFixed(2, BigFloatEnv.RNDNA, 16), "323.44");
+    assert((0x723.438l).toFixed(2, BigFloatEnv.RNDNA, 16), "723.44");
+    assert((0xf23.438l).toFixed(2, BigFloatEnv.RNDNA, 16), "f23.44");
+    assert((0x0.0000438l).toFixed(6, BigFloatEnv.RNDNA, 16), "0.000044");
+    assert((0x1230000000l).toFixed(1, BigFloatEnv.RNDNA, 16), "1230000000.0");
+    assert((0x123.438l).toPrecision(5, BigFloatEnv.RNDNA, 16), "123.44");
+    assert((0x123.438l).toPrecision(5, BigFloatEnv.RNDZ, 16), "123.43");
+    assert((0x323.438l).toPrecision(5, BigFloatEnv.RNDNA, 16), "323.44");
+    assert((0x723.438l).toPrecision(5, BigFloatEnv.RNDNA, 16), "723.44");
+    assert((-0xf23.438l).toPrecision(5, BigFloatEnv.RNDD, 16), "-f23.44");
+    assert((0x123.438l).toExponential(4, BigFloatEnv.RNDNA, 16), "1.2344p+8");
+}
+
+function test_bigdecimal()
+{
+    assert(1m === 1m);
+    assert(1m !== 2m);
+    test_less(1m, 2m);
+    test_eq(2m, 2m);
+    
+    test_less(1, 2m);
+    test_eq(2, 2m);
+
+    test_less(1.1, 2m);
+    test_eq(Math.sqrt(4), 2m);
+    
+    test_less(2n, 3m);
+    test_eq(3n, 3m);
+    
+    assert(BigDecimal("1234.1") === 1234.1m);
+    assert(BigDecimal("    1234.1") === 1234.1m);
+    assert(BigDecimal("    1234.1  ") === 1234.1m);
+
+    assert(BigDecimal(0.1) === 0.1m);
+    assert(BigDecimal(123) === 123m);
+    assert(BigDecimal(true) === 1m);
+
+    assert(123m + 1m === 124m);
+    assert(123m - 1m === 122m);
+
+    assert(3.2m * 3m === 9.6m);
+    assert(10m / 2m === 5m);
+    assertThrows(RangeError, () => { 10m / 3m } );
+
+    assert(10m % 3m === 1m);
+    assert(-10m % 3m === -1m);
+
+    assert(1234.5m ** 3m === 1881365963.625m);
+    assertThrows(RangeError, () => { 2m ** 3.1m } );
+    assertThrows(RangeError, () => { 2m ** -3m } );
+    
+    assert(BigDecimal.sqrt(2m,
+                       { roundingMode: "half-even",
+                         maximumSignificantDigits: 4 }) === 1.414m);
+    assert(BigDecimal.sqrt(101m,
+                       { roundingMode: "half-even",
+                         maximumFractionDigits: 3 }) === 10.050m);
+    assert(BigDecimal.sqrt(0.002m,
+                       { roundingMode: "half-even",
+                         maximumFractionDigits: 3 }) === 0.045m);
+    
+    assert(BigDecimal.round(3.14159m,
+                       { roundingMode: "half-even",
+                         maximumFractionDigits: 3 }) === 3.142m);
+
+    assert(BigDecimal.add(3.14159m, 0.31212m,
+                          { roundingMode: "half-even",
+                            maximumFractionDigits: 2 }) === 3.45m);
+    assert(BigDecimal.sub(3.14159m, 0.31212m,
+                          { roundingMode: "down",
+                            maximumFractionDigits: 2 }) === 2.82m);
+    assert(BigDecimal.mul(3.14159m, 0.31212m,
+                          { roundingMode: "half-even",
+                            maximumFractionDigits: 3 }) === 0.981m);
+    assert(BigDecimal.mod(3.14159m, 0.31211m,
+                          { roundingMode: "half-even",
+                            maximumFractionDigits: 4 }) === 0.0205m);
+    assert(BigDecimal.div(20m, 3m,
+                       { roundingMode: "half-even",
+                         maximumSignificantDigits: 3 }) === 6.67m);
+    assert(BigDecimal.div(20m, 3m,
+                       { roundingMode: "half-even",
+                         maximumFractionDigits: 50 }) ===
+           6.66666666666666666666666666666666666666666666666667m);
+
+    /* string conversion */
+    assert((1234.125m).toString(), "1234.125");
+    assert((1234.125m).toFixed(2), "1234.13");
+    assert((1234.125m).toFixed(2, "down"), "1234.12");
+    assert((1234.125m).toExponential(), "1.234125e+3");
+    assert((1234.125m).toExponential(5), "1.23413e+3");
+    assert((1234.125m).toExponential(5, "down"), "1.23412e+3");
+    assert((1234.125m).toPrecision(6), "1234.13");
+    assert((1234.125m).toPrecision(6, "down"), "1234.12");
+    assert((-1234.125m).toPrecision(6, "floor"), "-1234.13");
+}
+
+test_bigint1();
+test_bigint2();
+test_bigint_ext();
+test_bigfloat();
+test_bigdecimal();

third_party/quickjs/tests/test_bjson.js

@@ -0,0 +1,191 @@
+import * as bjson from "./bjson.so";
+
+function assert(actual, expected, message) {
+    if (arguments.length == 1)
+        expected = true;
+
+    if (actual === expected)
+        return;
+
+    if (actual !== null && expected !== null
+    &&  typeof actual == 'object' && typeof expected == 'object'
+    &&  actual.toString() === expected.toString())
+        return;
+
+    throw Error("assertion failed: got |" + actual + "|" +
+                ", expected |" + expected + "|" +
+                (message ? " (" + message + ")" : ""));
+}
+
+function toHex(a)
+{
+    var i, s = "", tab, v;
+    tab = new Uint8Array(a);
+    for(i = 0; i < tab.length; i++) {
+        v = tab[i].toString(16);
+        if (v.length < 2)
+            v = "0" + v;
+        if (i !== 0)
+            s += " ";
+        s += v;
+    }
+    return s;
+}
+
+function isArrayLike(a)
+{
+    return Array.isArray(a) || 
+        (a instanceof Uint8ClampedArray) ||
+        (a instanceof Uint8Array) ||
+        (a instanceof Uint16Array) ||
+        (a instanceof Uint32Array) ||
+        (a instanceof Int8Array) ||
+        (a instanceof Int16Array) ||
+        (a instanceof Int32Array) ||
+        (a instanceof Float32Array) ||
+        (a instanceof Float64Array);
+}
+
+function toStr(a)
+{
+    var s, i, props, prop;
+
+    switch(typeof(a)) {
+    case "object":
+        if (a === null)
+            return "null";
+        if (a instanceof Date) {
+            s = "Date(" + toStr(a.valueOf()) + ")";
+        } else if (a instanceof Number) {
+            s = "Number(" + toStr(a.valueOf()) + ")";
+        } else if (a instanceof String) {
+            s = "String(" + toStr(a.valueOf()) + ")";
+        } else if (a instanceof Boolean) {
+            s = "Boolean(" + toStr(a.valueOf()) + ")";
+        } else if (isArrayLike(a)) {
+            s = "[";
+            for(i = 0; i < a.length; i++) {
+                if (i != 0)
+                    s += ",";
+                s += toStr(a[i]);
+            }
+            s += "]";
+        } else {
+            props = Object.keys(a);
+            s = "{";
+            for(i = 0; i < props.length; i++) {
+                if (i != 0)
+                    s += ",";
+                prop = props[i];
+                s += prop + ":" + toStr(a[prop]);
+            }
+            s += "}";
+        }
+        return s;
+    case "undefined":
+        return "undefined";
+    case "string":
+        return a.__quote();
+    case "number":
+    case "bigfloat":
+        if (a == 0 && 1 / a < 0)
+            return "-0";
+        else
+            return a.toString();
+        break;
+    default:
+        return a.toString();
+    }
+}
+
+function bjson_test(a)
+{
+    var buf, r, a_str, r_str;
+    a_str = toStr(a);
+    buf = bjson.write(a);
+    if (0) {
+        print(a_str, "->", toHex(buf));
+    }
+    r = bjson.read(buf, 0, buf.byteLength);
+    r_str = toStr(r);
+    if (a_str != r_str) {
+        print(a_str);
+        print(r_str);
+        assert(false);
+    }
+}
+
+/* test multiple references to an object including circular
+   references */
+function bjson_test_reference()
+{
+    var array, buf, i, n, array_buffer;
+    n = 16;
+    array = [];
+    for(i = 0; i < n; i++)
+        array[i] = {};
+    array_buffer = new ArrayBuffer(n);
+    for(i = 0; i < n; i++) {
+        array[i].next = array[(i + 1) % n];
+        array[i].idx = i;
+        array[i].typed_array = new Uint8Array(array_buffer, i, 1);
+    }
+    buf = bjson.write(array, true);
+
+    array = bjson.read(buf, 0, buf.byteLength, true);
+
+    /* check the result */
+    for(i = 0; i < n; i++) {
+        assert(array[i].next, array[(i + 1) % n]);
+        assert(array[i].idx, i);
+        assert(array[i].typed_array.buffer, array_buffer);
+        assert(array[i].typed_array.length, 1);
+        assert(array[i].typed_array.byteOffset, i);
+    }
+}
+
+function bjson_test_all()
+{
+    var obj;
+    
+    bjson_test({x:1, y:2, if:3});
+    bjson_test([1, 2, 3]);
+    bjson_test([1.0, "aa", true, false, undefined, null, NaN, -Infinity, -0.0]);
+    if (typeof BigInt !== "undefined") {
+        bjson_test([BigInt("1"), -BigInt("0x123456789"),
+               BigInt("0x123456789abcdef123456789abcdef")]);
+    }
+    if (typeof BigFloat !== "undefined") {
+        BigFloatEnv.setPrec(function () {
+            bjson_test([BigFloat("0.1"), BigFloat("-1e30"), BigFloat("0"),
+                   BigFloat("-0"), BigFloat("Infinity"), BigFloat("-Infinity"),
+                   0.0 / BigFloat("0"), BigFloat.MAX_VALUE,
+                   BigFloat.MIN_VALUE]);
+        }, 113, 15);
+    }
+    if (typeof BigDecimal !== "undefined") {
+        bjson_test([BigDecimal("0"),
+                    BigDecimal("0.8"), BigDecimal("123321312321321e100"),
+                    BigDecimal("-1233213123213214332333223332e100"),
+                    BigDecimal("1.233e-1000")]);
+    }
+
+    bjson_test([new Date(1234), new String("abc"), new Number(-12.1), new Boolean(true)]);
+
+    bjson_test(new Int32Array([123123, 222111, -32222]));
+    bjson_test(new Float64Array([123123, 222111.5]));
+    
+    /* tested with a circular reference */
+    obj = {};
+    obj.x = obj;
+    try {
+        bjson.write(obj);
+        assert(false);
+    } catch(e) {
+        assert(e instanceof TypeError);
+    }
+
+    bjson_test_reference();
+}
+
+bjson_test_all();

third_party/quickjs/tests/test_builtin.js

@@ -0,0 +1,685 @@
+"use strict";
+
+function assert(actual, expected, message) {
+    if (arguments.length == 1)
+        expected = true;
+
+    if (actual === expected)
+        return;
+
+    if (actual !== null && expected !== null
+    &&  typeof actual == 'object' && typeof expected == 'object'
+    &&  actual.toString() === expected.toString())
+        return;
+
+    throw Error("assertion failed: got |" + actual + "|" +
+                ", expected |" + expected + "|" +
+                (message ? " (" + message + ")" : ""));
+}
+
+function assert_throws(expected_error, func)
+{
+    var err = false;
+    try {
+        func();
+    } catch(e) {
+        err = true;
+        if (!(e instanceof expected_error)) {
+            throw Error("unexpected exception type");
+        }
+    }
+    if (!err) {
+        throw Error("expected exception");
+    }
+}
+
+// load more elaborate version of assert if available
+try { __loadScript("test_assert.js"); } catch(e) {}
+
+/*----------------*/
+
+function my_func(a, b)
+{
+    return a + b;
+}
+
+function test_function()
+{
+    function f(a, b) {
+        var i, tab = [];
+        tab.push(this);
+        for(i = 0; i < arguments.length; i++)
+            tab.push(arguments[i]);
+        return tab;
+    }
+    function constructor1(a) {
+        this.x = a;
+    }
+
+    var r, g;
+    
+    r = my_func.call(null, 1, 2);
+    assert(r, 3, "call");
+
+    r = my_func.apply(null, [1, 2]);
+    assert(r, 3, "apply");
+
+    r = (function () { return 1; }).apply(null, undefined);
+    assert(r, 1);
+
+    assert_throws(TypeError, (function() {
+        Reflect.apply((function () { return 1; }), null, undefined);
+    }));
+    
+    r = new Function("a", "b", "return a + b;");
+    assert(r(2,3), 5, "function");
+    
+    g = f.bind(1, 2);
+    assert(g.length, 1);
+    assert(g.name, "bound f");
+    assert(g(3), [1,2,3]);
+
+    g = constructor1.bind(null, 1);
+    r = new g();
+    assert(r.x, 1);
+}
+
+function test()
+{
+    var r, a, b, c, err;
+
+    r = Error("hello");
+    assert(r.message, "hello", "Error");
+
+    a = new Object();
+    a.x = 1;
+    assert(a.x, 1, "Object");
+
+    assert(Object.getPrototypeOf(a), Object.prototype, "getPrototypeOf");
+    Object.defineProperty(a, "y", { value: 3, writable: true, configurable: true, enumerable: true });
+    assert(a.y, 3, "defineProperty");
+
+    Object.defineProperty(a, "z", { get: function () { return 4; }, set: function(val) { this.z_val = val; }, configurable: true, enumerable: true });
+    assert(a.z, 4, "get");
+    a.z = 5;
+    assert(a.z_val, 5, "set");
+    
+    a = { get z() { return 4; }, set z(val) { this.z_val = val; } };
+    assert(a.z, 4, "get");
+    a.z = 5;
+    assert(a.z_val, 5, "set");
+
+    b = Object.create(a);
+    assert(Object.getPrototypeOf(b), a, "create");
+    c = {u:2};
+    /* XXX: refcount bug in 'b' instead of 'a' */
+    Object.setPrototypeOf(a, c);
+    assert(Object.getPrototypeOf(a), c, "setPrototypeOf");
+
+    a = {};
+    assert(a.toString(), "[object Object]", "toString");
+
+    a = {x:1};
+    assert(Object.isExtensible(a), true, "extensible");
+    Object.preventExtensions(a);
+
+    err = false;
+    try {
+        a.y = 2;
+    } catch(e) {
+        err = true;
+    }
+    assert(Object.isExtensible(a), false, "extensible");
+    assert(typeof a.y, "undefined", "extensible");
+    assert(err, true, "extensible");
+}
+
+function test_enum()
+{
+    var a, tab;
+    a = {x:1,
+         "18014398509481984": 1,
+         "9007199254740992": 1,
+         "9007199254740991": 1,
+         "4294967296": 1,
+         "4294967295": 1,
+         y:1,
+         "4294967294": 1,
+         "1": 2};
+    tab = Object.keys(a);
+//    console.log("tab=" + tab.toString());
+    assert(tab, ["1","4294967294","x","18014398509481984","9007199254740992","9007199254740991","4294967296","4294967295","y"], "keys");
+}
+
+function test_array()
+{
+    var a, err;
+
+    a = [1, 2, 3];
+    assert(a.length, 3, "array");
+    assert(a[2], 3, "array1");
+
+    a = new Array(10);
+    assert(a.length, 10, "array2");
+
+    a = new Array(1, 2);
+    assert(a.length === 2 && a[0] === 1 && a[1] === 2, true, "array3");
+
+    a = [1, 2, 3];
+    a.length = 2;
+    assert(a.length === 2 && a[0] === 1 && a[1] === 2, true, "array4");
+
+    a = [];
+    a[1] = 10;
+    a[4] = 3;
+    assert(a.length, 5);
+
+    a = [1,2];
+    a.length = 5;
+    a[4] = 1;
+    a.length = 4;
+    assert(a[4] !== 1, true, "array5");
+
+    a = [1,2];
+    a.push(3,4);
+    assert(a.join(), "1,2,3,4", "join");
+
+    a = [1,2,3,4,5];
+    Object.defineProperty(a, "3", { configurable: false });
+    err = false;
+    try {
+        a.length = 2;
+    } catch(e) {
+        err = true;
+    }
+    assert(err && a.toString() === "1,2,3,4");
+}
+
+function test_string()
+{
+    var a;
+    a = String("abc");
+    assert(a.length, 3, "string");
+    assert(a[1], "b", "string");
+    assert(a.charCodeAt(1), 0x62, "string");
+    assert(String.fromCharCode(65), "A", "string");
+    assert(String.fromCharCode.apply(null, [65, 66, 67]), "ABC", "string");
+    assert(a.charAt(1), "b");
+    assert(a.charAt(-1), "");
+    assert(a.charAt(3), "");
+    
+    a = "abcd";
+    assert(a.substring(1, 3), "bc", "substring");
+    a = String.fromCharCode(0x20ac);
+    assert(a.charCodeAt(0), 0x20ac, "unicode");
+    assert(a, "€", "unicode");
+    assert(a, "\u20ac", "unicode");
+    assert(a, "\u{20ac}", "unicode");
+    assert("a", "\x61", "unicode");
+        
+    a = "\u{10ffff}";
+    assert(a.length, 2, "unicode");
+    assert(a, "\u{dbff}\u{dfff}", "unicode");
+    assert(a.codePointAt(0), 0x10ffff);
+    assert(String.fromCodePoint(0x10ffff), a);
+
+    assert("a".concat("b", "c"), "abc");
+
+    assert("abcabc".indexOf("cab"), 2);
+    assert("abcabc".indexOf("cab2"), -1);
+    assert("abc".indexOf("c"), 2);
+
+    assert("aaa".indexOf("a"), 0);
+    assert("aaa".indexOf("a", NaN), 0);
+    assert("aaa".indexOf("a", -Infinity), 0);
+    assert("aaa".indexOf("a", -1), 0);
+    assert("aaa".indexOf("a", -0), 0);
+    assert("aaa".indexOf("a", 0), 0);
+    assert("aaa".indexOf("a", 1), 1);
+    assert("aaa".indexOf("a", 2), 2);
+    assert("aaa".indexOf("a", 3), -1);
+    assert("aaa".indexOf("a", 4), -1);
+    assert("aaa".indexOf("a", Infinity), -1);
+
+    assert("aaa".indexOf(""), 0);
+    assert("aaa".indexOf("", NaN), 0);
+    assert("aaa".indexOf("", -Infinity), 0);
+    assert("aaa".indexOf("", -1), 0);
+    assert("aaa".indexOf("", -0), 0);
+    assert("aaa".indexOf("", 0), 0);
+    assert("aaa".indexOf("", 1), 1);
+    assert("aaa".indexOf("", 2), 2);
+    assert("aaa".indexOf("", 3), 3);
+    assert("aaa".indexOf("", 4), 3);
+    assert("aaa".indexOf("", Infinity), 3);
+
+    assert("aaa".lastIndexOf("a"), 2);
+    assert("aaa".lastIndexOf("a", NaN), 2);
+    assert("aaa".lastIndexOf("a", -Infinity), 0);
+    assert("aaa".lastIndexOf("a", -1), 0);
+    assert("aaa".lastIndexOf("a", -0), 0);
+    assert("aaa".lastIndexOf("a", 0), 0);
+    assert("aaa".lastIndexOf("a", 1), 1);
+    assert("aaa".lastIndexOf("a", 2), 2);
+    assert("aaa".lastIndexOf("a", 3), 2);
+    assert("aaa".lastIndexOf("a", 4), 2);
+    assert("aaa".lastIndexOf("a", Infinity), 2);
+
+    assert("aaa".lastIndexOf(""), 3);
+    assert("aaa".lastIndexOf("", NaN), 3);
+    assert("aaa".lastIndexOf("", -Infinity), 0);
+    assert("aaa".lastIndexOf("", -1), 0);
+    assert("aaa".lastIndexOf("", -0), 0);
+    assert("aaa".lastIndexOf("", 0), 0);
+    assert("aaa".lastIndexOf("", 1), 1);
+    assert("aaa".lastIndexOf("", 2), 2);
+    assert("aaa".lastIndexOf("", 3), 3);
+    assert("aaa".lastIndexOf("", 4), 3);
+    assert("aaa".lastIndexOf("", Infinity), 3);
+
+    assert("a,b,c".split(","), ["a","b","c"]);
+    assert(",b,c".split(","), ["","b","c"]);
+    assert("a,b,".split(","), ["a","b",""]);
+
+    assert("aaaa".split(), [ "aaaa" ]);
+    assert("aaaa".split(undefined, 0), [ ]);
+    assert("aaaa".split(""), [ "a", "a", "a", "a" ]);
+    assert("aaaa".split("", 0), [ ]);
+    assert("aaaa".split("", 1), [ "a" ]);
+    assert("aaaa".split("", 2), [ "a", "a" ]);
+    assert("aaaa".split("a"), [ "", "", "", "", "" ]);
+    assert("aaaa".split("a", 2), [ "", "" ]);
+    assert("aaaa".split("aa"), [ "", "", "" ]);
+    assert("aaaa".split("aa", 0), [ ]);
+    assert("aaaa".split("aa", 1), [ "" ]);
+    assert("aaaa".split("aa", 2), [ "", "" ]);
+    assert("aaaa".split("aaa"), [ "", "a" ]);
+    assert("aaaa".split("aaaa"), [ "", "" ]);
+    assert("aaaa".split("aaaaa"), [ "aaaa" ]);
+    assert("aaaa".split("aaaaa", 0), [  ]);
+    assert("aaaa".split("aaaaa", 1), [ "aaaa" ]);
+
+    assert(eval('"\0"'), "\0");
+
+    assert("abc".padStart(Infinity, ""), "abc");
+}
+
+function test_math()
+{
+    var a;
+    a = 1.4;
+    assert(Math.floor(a), 1);
+    assert(Math.ceil(a), 2);
+    assert(Math.imul(0x12345678, 123), -1088058456);
+    assert(Math.fround(0.1), 0.10000000149011612);
+    assert(Math.hypot() == 0);
+    assert(Math.hypot(-2) == 2);
+    assert(Math.hypot(3, 4) == 5);
+    assert(Math.abs(Math.hypot(3, 4, 5) - 7.0710678118654755) <= 1e-15);
+}
+
+function test_number()
+{
+    assert(parseInt("123"), 123);
+    assert(parseInt("  123r"), 123);
+    assert(parseInt("0x123"), 0x123);
+    assert(parseInt("0o123"), 0);
+    assert(+"  123   ", 123);
+    assert(+"0b111", 7);
+    assert(+"0o123", 83);
+    assert(parseFloat("0x1234"), 0);
+    assert(parseFloat("Infinity"), Infinity);
+    assert(parseFloat("-Infinity"), -Infinity);
+    assert(parseFloat("123.2"), 123.2);
+    assert(parseFloat("123.2e3"), 123200);
+    assert(Number.isNaN(Number("+")));
+    assert(Number.isNaN(Number("-")));
+    assert(Number.isNaN(Number("\x00a")));
+
+    assert((25).toExponential(0), "3e+1");
+    assert((-25).toExponential(0), "-3e+1");
+    assert((2.5).toPrecision(1), "3");
+    assert((-2.5).toPrecision(1), "-3");
+    assert((1.125).toFixed(2), "1.13");
+    assert((-1.125).toFixed(2), "-1.13");
+}
+
+function test_eval2()
+{
+    var g_call_count = 0;
+    /* force non strict mode for f1 and f2 */
+    var f1 = new Function("eval", "eval(1, 2)");
+    var f2 = new Function("eval", "eval(...[1, 2])");
+    function g(a, b) {
+        assert(a, 1);
+        assert(b, 2);
+        g_call_count++;
+    }
+    f1(g);
+    f2(g);
+    assert(g_call_count, 2);
+}
+
+function test_eval()
+{
+    function f(b) {
+        var x = 1;
+        return eval(b);
+    }
+    var r, a;
+
+    r = eval("1+1;");
+    assert(r, 2, "eval");
+
+    r = eval("var my_var=2; my_var;");
+    assert(r, 2, "eval");
+    assert(typeof my_var, "undefined");
+
+    assert(eval("if (1) 2; else 3;"), 2);
+    assert(eval("if (0) 2; else 3;"), 3);
+
+    assert(f.call(1, "this"), 1);
+    
+    a = 2;
+    assert(eval("a"), 2);
+
+    eval("a = 3");
+    assert(a, 3);
+
+    assert(f("arguments.length", 1), 2);
+    assert(f("arguments[1]", 1), 1);
+
+    a = 4;
+    assert(f("a"), 4);
+    f("a=3");
+    assert(a, 3);
+
+    test_eval2();
+}
+
+function test_typed_array()
+{
+    var buffer, a, i, str;
+
+    a = new Uint8Array(4);
+    assert(a.length, 4);
+    for(i = 0; i < a.length; i++)
+        a[i] = i;
+    assert(a.join(","), "0,1,2,3");
+    a[0] = -1;
+    assert(a[0], 255);
+
+    a = new Int8Array(3);
+    a[0] = 255;
+    assert(a[0], -1);
+
+    a = new Int32Array(3);
+    a[0] = Math.pow(2, 32) - 1;
+    assert(a[0], -1);
+    assert(a.BYTES_PER_ELEMENT, 4);
+
+    a = new Uint8ClampedArray(4);
+    a[0] = -100;
+    a[1] = 1.5;
+    a[2] = 0.5;
+    a[3] = 1233.5;
+    assert(a.toString(), "0,2,0,255");
+    
+    buffer = new ArrayBuffer(16);
+    assert(buffer.byteLength, 16);
+    a = new Uint32Array(buffer, 12, 1);
+    assert(a.length, 1);
+    a[0] = -1;
+
+    a = new Uint16Array(buffer, 2);
+    a[0] = -1;
+
+    a = new Float32Array(buffer, 8, 1);
+    a[0] = 1;
+    
+    a = new Uint8Array(buffer);
+
+    str = a.toString();
+    /* test little and big endian cases */
+    if (str !== "0,0,255,255,0,0,0,0,0,0,128,63,255,255,255,255" &&
+        str !== "0,0,255,255,0,0,0,0,63,128,0,0,255,255,255,255") {
+        assert(false);
+    }
+
+    assert(a.buffer, buffer);
+
+    a = new Uint8Array([1, 2, 3, 4]);
+    assert(a.toString(), "1,2,3,4");
+    a.set([10, 11], 2);
+    assert(a.toString(), "1,2,10,11");
+}
+
+function test_json()
+{
+    var a, s;
+    s = '{"x":1,"y":true,"z":null,"a":[1,2,3],"s":"str"}';
+    a = JSON.parse(s);
+    assert(a.x, 1);
+    assert(a.y, true);
+    assert(a.z, null);
+    assert(JSON.stringify(a), s);
+
+    /* indentation test */
+    assert(JSON.stringify([[{x:1,y:{},z:[]},2,3]],undefined,1),
+`[
+ [
+  {
+   "x": 1,
+   "y": {},
+   "z": []
+  },
+  2,
+  3
+ ]
+]`);
+}
+
+function test_date()
+{
+    var d = new Date(1506098258091), a, s;
+    assert(d.toISOString(), "2017-09-22T16:37:38.091Z");
+    d.setUTCHours(18, 10, 11);
+    assert(d.toISOString(), "2017-09-22T18:10:11.091Z");
+    a = Date.parse(d.toISOString());
+    assert((new Date(a)).toISOString(), d.toISOString());
+    s = new Date("2020-01-01T01:01:01.1Z").toISOString();
+    assert(s ==  "2020-01-01T01:01:01.100Z");
+    s = new Date("2020-01-01T01:01:01.12Z").toISOString();
+    assert(s ==  "2020-01-01T01:01:01.120Z");
+    s = new Date("2020-01-01T01:01:01.123Z").toISOString();
+    assert(s ==  "2020-01-01T01:01:01.123Z");
+    s = new Date("2020-01-01T01:01:01.1234Z").toISOString();
+    assert(s ==  "2020-01-01T01:01:01.123Z");
+    s = new Date("2020-01-01T01:01:01.12345Z").toISOString();
+    assert(s ==  "2020-01-01T01:01:01.123Z");
+    s = new Date("2020-01-01T01:01:01.1235Z").toISOString();
+    assert(s ==  "2020-01-01T01:01:01.124Z");
+    s = new Date("2020-01-01T01:01:01.9999Z").toISOString();
+    assert(s ==  "2020-01-01T01:01:02.000Z");
+}
+
+function test_regexp()
+{
+    var a, str;
+    str = "abbbbbc";
+    a = /(b+)c/.exec(str);
+    assert(a[0], "bbbbbc");
+    assert(a[1], "bbbbb");
+    assert(a.index, 1);
+    assert(a.input, str);
+    a = /(b+)c/.test(str);
+    assert(a, true);
+    assert(/\x61/.exec("a")[0], "a");
+    assert(/\u0061/.exec("a")[0], "a");
+    assert(/\ca/.exec("\x01")[0], "\x01");
+    assert(/\\a/.exec("\\a")[0], "\\a");
+    assert(/\c0/.exec("\\c0")[0], "\\c0");
+
+    a = /(\.(?=com|org)|\/)/.exec("ah.com");
+    assert(a.index === 2 && a[0] === ".");
+
+    a = /(\.(?!com|org)|\/)/.exec("ah.com");
+    assert(a, null);
+    
+    a = /(?=(a+))/.exec("baaabac");
+    assert(a.index === 1 && a[0] === "" && a[1] === "aaa");
+
+    a = /(z)((a+)?(b+)?(c))*/.exec("zaacbbbcac");
+    assert(a, ["zaacbbbcac","z","ac","a",,"c"]);
+
+    a = eval("/\0a/");
+    assert(a.toString(), "/\0a/");
+    assert(a.exec("\0a")[0], "\0a");
+
+    assert(/{1a}/.toString(), "/{1a}/");
+    a = /a{1+/.exec("a{11");
+    assert(a, ["a{11"] );
+}
+
+function test_symbol()
+{
+    var a, b, obj, c;
+    a = Symbol("abc");
+    obj = {};
+    obj[a] = 2;
+    assert(obj[a], 2);
+    assert(typeof obj["abc"], "undefined");
+    assert(String(a), "Symbol(abc)");
+    b = Symbol("abc");
+    assert(a == a);
+    assert(a === a);
+    assert(a != b);
+    assert(a !== b);
+
+    b = Symbol.for("abc");
+    c = Symbol.for("abc");
+    assert(b === c);
+    assert(b !== a);
+
+    assert(Symbol.keyFor(b), "abc");
+    assert(Symbol.keyFor(a), undefined);
+
+    a = Symbol("aaa");
+    assert(a.valueOf(), a);
+    assert(a.toString(), "Symbol(aaa)");
+
+    b = Object(a);
+    assert(b.valueOf(), a);
+    assert(b.toString(), "Symbol(aaa)");
+}
+
+function test_map()
+{
+    var a, i, n, tab, o, v;
+    n = 1000;
+    a = new Map();
+    tab = [];
+    for(i = 0; i < n; i++) {
+        v = { };
+        o = { id: i };
+        tab[i] = [o, v];
+        a.set(o, v);
+    }
+
+    assert(a.size, n);
+    for(i = 0; i < n; i++) {
+        assert(a.get(tab[i][0]), tab[i][1]);
+    }
+
+    i = 0;
+    a.forEach(function (v, o) { 
+        assert(o, tab[i++][0]);
+        assert(a.has(o));
+        assert(a.delete(o));
+        assert(!a.has(o));
+    });
+
+    assert(a.size, 0);
+}
+
+function test_weak_map()
+{
+    var a, i, n, tab, o, v, n2;
+    a = new WeakMap();
+    n = 10;
+    tab = [];
+    for(i = 0; i < n; i++) {
+        v = { };
+        o = { id: i };
+        tab[i] = [o, v];
+        a.set(o, v);
+    }
+    o = null;
+    
+    n2 = n >> 1;
+    for(i = 0; i < n2; i++) {
+        a.delete(tab[i][0]);
+    }
+    for(i = n2; i < n; i++) {
+        tab[i][0] = null; /* should remove the object from the WeakMap too */
+    }
+    /* the WeakMap should be empty here */
+}
+
+function test_generator()
+{
+    function *f() {
+        var ret;
+        yield 1;
+        ret = yield 2;
+        assert(ret, "next_arg");
+        return 3;
+    }
+    function *f2() {
+        yield 1;
+        yield 2;
+        return "ret_val";
+    }
+    function *f1() {
+        var ret = yield *f2();
+        assert(ret, "ret_val");
+        return 3;
+    }
+    var g, v;
+    g = f();
+    v = g.next();
+    assert(v.value === 1 && v.done === false);
+    v = g.next();
+    assert(v.value === 2 && v.done === false);
+    v = g.next("next_arg");
+    assert(v.value === 3 && v.done === true);
+    v = g.next();
+    assert(v.value === undefined && v.done === true);
+
+    g = f1();
+    v = g.next();
+    assert(v.value === 1 && v.done === false);
+    v = g.next();
+    assert(v.value === 2 && v.done === false);
+    v = g.next();
+    assert(v.value === 3 && v.done === true);
+    v = g.next();
+    assert(v.value === undefined && v.done === true);
+}
+
+test();
+test_function();
+test_enum();
+test_array();
+test_string();
+test_math();
+test_number();
+test_eval();
+test_typed_array();
+test_json();
+test_date();
+test_regexp();
+test_symbol();
+test_map();
+test_weak_map();
+test_generator();

third_party/quickjs/tests/test_closure.js

@@ -0,0 +1,221 @@
+function assert(actual, expected, message) {
+    if (arguments.length == 1)
+        expected = true;
+
+    if (actual === expected)
+        return;
+
+    if (actual !== null && expected !== null
+    &&  typeof actual == 'object' && typeof expected == 'object'
+    &&  actual.toString() === expected.toString())
+        return;
+
+    throw Error("assertion failed: got |" + actual + "|" +
+                ", expected |" + expected + "|" +
+                (message ? " (" + message + ")" : ""));
+}
+
+// load more elaborate version of assert if available
+try { __loadScript("test_assert.js"); } catch(e) {}
+
+/*----------------*/
+
+var log_str = "";
+
+function log(str)
+{
+    log_str += str + ",";
+}
+
+function f(a, b, c)
+{
+    var x = 10;
+    log("a="+a);
+    function g(d) {
+        function h() {
+            log("d=" + d);
+            log("x=" + x);
+        }
+        log("b=" + b);
+        log("c=" + c);
+        h();
+    }
+    g(4);
+    return g;
+}
+
+var g1 = f(1, 2, 3);
+g1(5);
+
+assert(log_str, "a=1,b=2,c=3,d=4,x=10,b=2,c=3,d=5,x=10,", "closure1");
+
+function test_closure1()
+{
+    function f2()
+    {
+        var val = 1;
+        
+        function set(a) {
+            val = a;
+        }
+        function get(a) {
+            return val;
+        }
+        return { "set": set, "get": get };
+    }
+    
+    var obj = f2();
+    obj.set(10);
+    var r;
+    r = obj.get();
+    assert(r, 10, "closure2");
+}
+
+function test_closure2()
+{
+    var expr_func = function myfunc1(n) {
+        function myfunc2(n) {
+            return myfunc1(n - 1);
+        }
+        if (n == 0)
+            return 0;
+        else
+            return myfunc2(n);
+    };
+    var r;
+    r = expr_func(1);
+    assert(r, 0, "expr_func");
+}
+
+function test_closure3()
+{
+    function fib(n)
+    {
+        if (n <= 0)
+            return 0;
+        else if (n == 1)
+            return 1;
+        else
+            return fib(n - 1) + fib(n - 2);
+    }
+
+    var fib_func = function fib1(n)
+    {
+        if (n <= 0)
+            return 0;
+        else if (n == 1)
+            return 1;
+        else
+            return fib1(n - 1) + fib1(n - 2);
+    };
+
+    assert(fib(6), 8, "fib");
+    assert(fib_func(6), 8, "fib_func");
+}
+
+function test_arrow_function()
+{
+    "use strict";
+
+    function f1() {
+        return (() => arguments)();
+    }
+    function f2() {
+        return (() => this)();
+    }
+    function f3() {
+        return (() => eval("this"))();
+    }
+    function f4() {
+        return (() => eval("new.target"))();
+    }
+    var a;
+
+    a = f1(1, 2);
+    assert(a.length, 2);
+    assert(a[0] === 1 && a[1] === 2);
+
+    assert(f2.call("this_val") === "this_val");
+    assert(f3.call("this_val") === "this_val");
+    assert(new f4() === f4);
+
+    var o1 = { f() { return this; } };
+    var o2 = { f() {
+        return (() => eval("super.f()"))();
+    } };
+    o2.__proto__ = o1;
+
+    assert(o2.f() === o2);
+}
+
+function test_with()
+{
+    var o1 = { x: "o1", y: "o1" };
+    var x = "local";
+    eval('var z="var_obj";');
+    assert(z === "var_obj");
+    with (o1) {
+        assert(x === "o1");
+        assert(eval("x") === "o1");
+        var f = function () {
+            o2 = { x: "o2" };
+            with (o2) {
+                assert(x === "o2");
+                assert(y === "o1");
+                assert(z === "var_obj");
+                assert(eval("x") === "o2");
+                assert(eval("y") === "o1");
+                assert(eval("z") === "var_obj");
+                assert(eval('eval("x")') === "o2");
+            }
+        };
+        f();
+    }
+}
+
+function test_eval_closure()
+{
+    var tab;
+
+    tab = [];
+    for(let i = 0; i < 3; i++) {
+        eval("tab.push(function g1() { return i; })");
+    }
+    for(let i = 0; i < 3; i++) {
+        assert(tab[i]() === i);
+    }
+
+    tab = [];
+    for(let i = 0; i < 3; i++) {
+        let f = function f() {
+            eval("tab.push(function g2() { return i; })");
+        };
+        f();
+    }
+    for(let i = 0; i < 3; i++) {
+        assert(tab[i]() === i);
+    }
+}
+
+function test_eval_const()
+{
+    const a = 1;
+    var success = false;
+    var f = function () {
+        eval("a = 1");
+    };
+    try {
+        f();
+    } catch(e) {
+        success = (e instanceof TypeError);
+    }
+    assert(success);
+}
+
+test_closure1();
+test_closure2();
+test_closure3();
+test_arrow_function();
+test_with();
+test_eval_closure();
+test_eval_const();

third_party/quickjs/tests/test_language.js

@@ -0,0 +1,547 @@
+function assert(actual, expected, message) {
+    if (arguments.length == 1)
+        expected = true;
+
+    if (actual === expected)
+        return;
+
+    if (actual !== null && expected !== null
+    &&  typeof actual == 'object' && typeof expected == 'object'
+    &&  actual.toString() === expected.toString())
+        return;
+
+    throw Error("assertion failed: got |" + actual + "|" +
+                ", expected |" + expected + "|" +
+                (message ? " (" + message + ")" : ""));
+}
+
+function assert_throws(expected_error, func)
+{
+    var err = false;
+    try {
+        func();
+    } catch(e) {
+        err = true;
+        if (!(e instanceof expected_error)) {
+            throw Error("unexpected exception type");
+        }
+    }
+    if (!err) {
+        throw Error("expected exception");
+    }
+}
+
+// load more elaborate version of assert if available
+try { __loadScript("test_assert.js"); } catch(e) {}
+
+/*----------------*/
+
+function test_op1()
+{
+    var r, a;
+    r = 1 + 2;
+    assert(r, 3, "1 + 2 === 3");
+
+    r = 1 - 2;
+    assert(r, -1, "1 - 2 === -1");
+
+    r = -1;
+    assert(r, -1, "-1 === -1");
+
+    r = +2;
+    assert(r, 2, "+2 === 2");
+
+    r = 2 * 3;
+    assert(r, 6, "2 * 3 === 6");
+
+    r = 4 / 2;
+    assert(r, 2, "4 / 2 === 2");
+
+    r = 4 % 3;
+    assert(r, 1, "4 % 3 === 3");
+
+    r = 4 << 2;
+    assert(r, 16, "4 << 2 === 16");
+
+    r = 1 << 0;
+    assert(r, 1, "1 << 0 === 1");
+
+    r = 1 << 31;
+    assert(r, -2147483648, "1 << 31 === -2147483648");
+    
+    r = 1 << 32;
+    assert(r, 1, "1 << 32 === 1");
+    
+    r = (1 << 31) < 0;
+    assert(r, true, "(1 << 31) < 0 === true");
+
+    r = -4 >> 1;
+    assert(r, -2, "-4 >> 1 === -2");
+
+    r = -4 >>> 1;
+    assert(r, 0x7ffffffe, "-4 >>> 1 === 0x7ffffffe");
+
+    r = 1 & 1;
+    assert(r, 1, "1 & 1 === 1");
+
+    r = 0 | 1;
+    assert(r, 1, "0 | 1 === 1");
+
+    r = 1 ^ 1;
+    assert(r, 0, "1 ^ 1 === 0");
+
+    r = ~1;
+    assert(r, -2, "~1 === -2");
+
+    r = !1;
+    assert(r, false, "!1 === false");
+
+    assert((1 < 2), true, "(1 < 2) === true");
+
+    assert((2 > 1), true, "(2 > 1) === true");
+
+    assert(('b' > 'a'), true, "('b' > 'a') === true");
+
+    assert(2 ** 8, 256, "2 ** 8 === 256");
+}
+
+function test_cvt()
+{
+    assert((NaN | 0) === 0);
+    assert((Infinity | 0) === 0);
+    assert(((-Infinity) | 0) === 0);
+    assert(("12345" | 0) === 12345);
+    assert(("0x12345" | 0) === 0x12345);
+    assert(((4294967296 * 3 - 4) | 0) === -4);
+    
+    assert(("12345" >>> 0) === 12345);
+    assert(("0x12345" >>> 0) === 0x12345);
+    assert((NaN >>> 0) === 0);
+    assert((Infinity >>> 0) === 0);
+    assert(((-Infinity) >>> 0) === 0);
+    assert(((4294967296 * 3 - 4) >>> 0) === (4294967296 - 4));
+}
+
+function test_eq()
+{
+    assert(null == undefined);
+    assert(undefined == null);
+    assert(true == 1);
+    assert(0 == false);
+    assert("" == 0);
+    assert("123" == 123);
+    assert("122" != 123);
+    assert((new Number(1)) == 1);
+    assert(2 == (new Number(2)));
+    assert((new String("abc")) == "abc");
+    assert({} != "abc");
+}
+
+function test_inc_dec()
+{
+    var a, r;
+    
+    a = 1;
+    r = a++;
+    assert(r === 1 && a === 2, true, "++");
+
+    a = 1;
+    r = ++a;
+    assert(r === 2 && a === 2, true, "++");
+
+    a = 1;
+    r = a--;
+    assert(r === 1 && a === 0, true, "--");
+
+    a = 1;
+    r = --a;
+    assert(r === 0 && a === 0, true, "--");
+
+    a = {x:true};
+    a.x++;
+    assert(a.x, 2, "++");
+
+    a = {x:true};
+    a.x--;
+    assert(a.x, 0, "--");
+
+    a = [true];
+    a[0]++;
+    assert(a[0], 2, "++");
+    
+    a = {x:true};
+    r = a.x++;
+    assert(r === 1 && a.x === 2, true, "++");
+    
+    a = {x:true};
+    r = a.x--;
+    assert(r === 1 && a.x === 0, true, "--");
+    
+    a = [true];
+    r = a[0]++;
+    assert(r === 1 && a[0] === 2, true, "++");
+    
+    a = [true];
+    r = a[0]--;
+    assert(r === 1 && a[0] === 0, true, "--");
+}
+
+function F(x)
+{
+    this.x = x;
+}
+
+function test_op2()
+{
+    var a, b;
+    a = new Object;
+    a.x = 1;
+    assert(a.x, 1, "new");
+    b = new F(2);
+    assert(b.x, 2, "new");
+
+    a = {x : 2};
+    assert(("x" in a), true, "in");
+    assert(("y" in a), false, "in");
+
+    a = {};
+    assert((a instanceof Object), true, "instanceof");
+    assert((a instanceof String), false, "instanceof");
+
+    assert((typeof 1), "number", "typeof");
+    assert((typeof Object), "function", "typeof");
+    assert((typeof null), "object", "typeof");
+    assert((typeof unknown_var), "undefined", "typeof");
+    
+    a = {x: 1, if: 2, async: 3};
+    assert(a.if === 2);
+    assert(a.async === 3);
+}
+
+function test_delete()
+{
+    var a, err;
+
+    a = {x: 1, y: 1};
+    assert((delete a.x), true, "delete");
+    assert(("x" in a), false, "delete");
+    
+    /* the following are not tested by test262 */
+    assert(delete "abc"[100], true);
+
+    err = false;
+    try {
+        delete null.a;
+    } catch(e) {
+        err = (e instanceof TypeError);
+    }
+    assert(err, true, "delete");
+
+    err = false;
+    try {
+        a = { f() { delete super.a; } };
+        a.f();
+    } catch(e) {
+        err = (e instanceof ReferenceError);
+    }
+    assert(err, true, "delete");
+}
+
+function test_prototype()
+{
+    var f = function f() { };
+    assert(f.prototype.constructor, f, "prototype");
+
+    var g = function g() { };
+    /* QuickJS bug */
+    Object.defineProperty(g, "prototype", { writable: false });
+    assert(g.prototype.constructor, g, "prototype");
+}
+
+function test_arguments()
+{
+    function f2() {
+        assert(arguments.length, 2, "arguments");
+        assert(arguments[0], 1, "arguments");
+        assert(arguments[1], 3, "arguments");
+    }
+    f2(1, 3);
+}
+
+function test_class()
+{
+    var o;
+    class C {
+        constructor() {
+            this.x = 10;
+        }
+        f() {
+            return 1;
+        }
+        static F() {
+            return -1;
+        }
+        get y() {
+            return 12;
+        }
+    };
+    class D extends C {
+        constructor() {
+            super();
+            this.z = 20;
+        }
+        g() {
+            return 2;
+        }
+        static G() {
+            return -2;
+        }
+        h() {
+            return super.f();
+        }
+        static H() {
+            return super["F"]();
+        }
+    }
+
+    assert(C.F() === -1);
+    assert(Object.getOwnPropertyDescriptor(C.prototype, "y").get.name === "get y");
+
+    o = new C();
+    assert(o.f() === 1);
+    assert(o.x === 10);
+    
+    assert(D.F() === -1);
+    assert(D.G() === -2);
+    assert(D.H() === -1);
+
+    o = new D();
+    assert(o.f() === 1);
+    assert(o.g() === 2);
+    assert(o.x === 10);
+    assert(o.z === 20);
+    assert(o.h() === 1);
+
+    /* test class name scope */
+    var E1 = class E { static F() { return E; } };
+    assert(E1 === E1.F());
+};
+
+function test_template()
+{
+    var a, b;
+    b = 123;
+    a = `abc${b}d`;
+    assert(a, "abc123d");
+
+    a = String.raw `abc${b}d`;
+    assert(a, "abc123d");
+
+    a = "aaa";
+    b = "bbb";
+    assert(`aaa${a, b}ccc`, "aaabbbccc");
+}
+
+function test_template_skip()
+{
+    var a = "Bar";
+    var { b = `${a + `a${a}` }baz` } = {};
+    assert(b, "BaraBarbaz");
+}
+
+function test_object_literal()
+{
+    var x = 0, get = 1, set = 2; async = 3;
+    a = { get: 2, set: 3, async: 4 };
+    assert(JSON.stringify(a), '{"get":2,"set":3,"async":4}');
+
+    a = { x, get, set, async };
+    assert(JSON.stringify(a), '{"x":0,"get":1,"set":2,"async":3}');
+}
+
+function test_regexp_skip()
+{
+    var a, b;
+    [a, b = /abc\(/] = [1];
+    assert(a === 1);
+    
+    [a, b =/abc\(/] = [2];
+    assert(a === 2);
+}
+
+function test_labels()
+{
+    do x: { break x; } while(0);
+    if (1)
+        x: { break x; }
+    else
+        x: { break x; }
+    with ({}) x: { break x; };
+    while (0) x: { break x; };
+}
+
+function test_destructuring()
+{
+    function * g () { return 0; };
+    var [x] = g();
+    assert(x, void 0);
+}
+
+function test_spread()
+{
+    var x;
+    x = [1, 2, ...[3, 4]];
+    assert(x.toString(), "1,2,3,4");
+
+    x = [ ...[ , ] ];
+    assert(Object.getOwnPropertyNames(x).toString(), "0,length");
+}
+
+function test_function_length()
+{
+    assert( ((a, b = 1, c) => {}).length, 1);
+    assert( (([a,b]) => {}).length, 1);
+    assert( (({a,b}) => {}).length, 1);
+    assert( ((c, [a,b] = 1, d) => {}).length, 1);
+}
+
+function test_argument_scope()
+{
+    var f;
+    var c = "global";
+    
+    f = function(a = eval("var arguments")) {};
+    assert_throws(SyntaxError, f);
+
+    f = function(a = eval("1"), b = arguments[0]) { return b; };
+    assert(f(12), 12);
+
+    f = function(a, b = arguments[0]) { return b; };
+    assert(f(12), 12);
+
+    f = function(a, b = () => arguments) { return b; };
+    assert(f(12)()[0], 12);
+
+    f = function(a = eval("1"), b = () => arguments) { return b; };
+    assert(f(12)()[0], 12);
+
+    (function() {
+        "use strict";
+        f = function(a = this) { return a; };
+        assert(f.call(123), 123);
+
+        f = function f(a = f) { return a; };
+        assert(f(), f);
+
+        f = function f(a = eval("f")) { return a; };
+        assert(f(), f);
+    })();
+
+    f = (a = eval("var c = 1"), probe = () => c) => {
+        var c = 2;
+        assert(c, 2);
+        assert(probe(), 1);
+    }
+    f();
+
+    f = (a = eval("var arguments = 1"), probe = () => arguments) => {
+        var arguments = 2;
+        assert(arguments, 2);
+        assert(probe(), 1);
+    }
+    f();
+
+    f = function f(a = eval("var c = 1"), b = c, probe = () => c) {
+        assert(b, 1);
+        assert(c, 1);
+        assert(probe(), 1)
+    }
+    f();
+
+    assert(c, "global");
+    f = function f(a, b = c, probe = () => c) {
+        eval("var c = 1");
+        assert(c, 1);
+        assert(b, "global");
+        assert(probe(), "global")
+    }
+    f();
+    assert(c, "global");
+
+    f = function f(a = eval("var c = 1"), probe = (d = eval("c")) => d) {
+        assert(probe(), 1)
+    }
+    f();
+}
+
+function test_function_expr_name()
+{
+    var f;
+
+    /* non strict mode test : assignment to the function name silently
+       fails */
+    
+    f = function myfunc() {
+        myfunc = 1;
+        return myfunc;
+    };
+    assert(f(), f);
+
+    f = function myfunc() {
+        myfunc = 1;
+        (() => {
+            myfunc = 1;
+        })();
+        return myfunc;
+    };
+    assert(f(), f);
+
+    f = function myfunc() {
+        eval("myfunc = 1");
+        return myfunc;
+    };
+    assert(f(), f);
+    
+    /* strict mode test : assignment to the function name raises a
+       TypeError exception */
+
+    f = function myfunc() {
+        "use strict";
+        myfunc = 1;
+    };
+    assert_throws(TypeError, f);
+
+    f = function myfunc() {
+        "use strict";
+        (() => {
+            myfunc = 1;
+        })();
+    };
+    assert_throws(TypeError, f);
+
+    f = function myfunc() {
+        "use strict";
+        eval("myfunc = 1");
+    };
+    assert_throws(TypeError, f);
+}
+
+test_op1();
+test_cvt();
+test_eq();
+test_inc_dec();
+test_op2();
+test_delete();
+test_prototype();
+test_arguments();
+test_class();
+test_template();
+test_template_skip();
+test_object_literal();
+test_regexp_skip();
+test_labels();
+test_destructuring();
+test_spread();
+test_function_length();
+test_argument_scope();
+test_function_expr_name();

third_party/quickjs/tests/test_loop.js

@@ -0,0 +1,368 @@
+function assert(actual, expected, message) {
+    if (arguments.length == 1)
+        expected = true;
+
+    if (actual === expected)
+        return;
+
+    if (actual !== null && expected !== null
+    &&  typeof actual == 'object' && typeof expected == 'object'
+    &&  actual.toString() === expected.toString())
+        return;
+
+    throw Error("assertion failed: got |" + actual + "|" +
+                ", expected |" + expected + "|" +
+                (message ? " (" + message + ")" : ""));
+}
+
+// load more elaborate version of assert if available
+try { __loadScript("test_assert.js"); } catch(e) {}
+
+/*----------------*/
+
+function test_while()
+{
+    var i, c;
+    i = 0;
+    c = 0;
+    while (i < 3) {
+        c++;
+        i++;
+    }
+    assert(c === 3);
+}
+
+function test_while_break()
+{
+    var i, c;
+    i = 0;
+    c = 0;
+    while (i < 3) {
+        c++;
+        if (i == 1)
+            break;
+        i++;
+    }
+    assert(c === 2 && i === 1);
+}
+
+function test_do_while()
+{
+    var i, c;
+    i = 0;
+    c = 0;
+    do {
+        c++;
+        i++;
+    } while (i < 3);
+    assert(c === 3 && i === 3);
+}
+
+function test_for()
+{
+    var i, c;
+    c = 0;
+    for(i = 0; i < 3; i++) {
+        c++;
+    }
+    assert(c === 3 && i === 3);
+
+    c = 0;
+    for(var j = 0; j < 3; j++) {
+        c++;
+    }
+    assert(c === 3 && j === 3);
+}
+
+function test_for_in()
+{
+    var i, tab, a, b;
+
+    tab = [];
+    for(i in {x:1, y: 2}) {
+        tab.push(i);
+    }
+    assert(tab.toString(), "x,y", "for_in");
+
+    /* prototype chain test */
+    a = {x:2, y: 2, "1": 3};
+    b = {"4" : 3 };
+    Object.setPrototypeOf(a, b);
+    tab = [];
+    for(i in a) {
+        tab.push(i);
+    }
+    assert(tab.toString(), "1,x,y,4", "for_in");
+
+    /* non enumerable properties hide enumerables ones in the
+       prototype chain */
+    a = {y: 2, "1": 3};
+    Object.defineProperty(a, "x", { value: 1 });
+    b = {"x" : 3 };
+    Object.setPrototypeOf(a, b);
+    tab = [];
+    for(i in a) {
+        tab.push(i);
+    }
+    assert(tab.toString(), "1,y", "for_in");
+
+    /* array optimization */
+    a = [];
+    for(i = 0; i < 10; i++)
+        a.push(i);
+    tab = [];
+    for(i in a) {
+        tab.push(i);
+    }
+    assert(tab.toString(), "0,1,2,3,4,5,6,7,8,9", "for_in");
+
+    /* iterate with a field */
+    a={x:0};
+    tab = [];
+    for(a.x in {x:1, y: 2}) {
+        tab.push(a.x);
+    }
+    assert(tab.toString(), "x,y", "for_in");
+
+    /* iterate with a variable field */
+    a=[0];
+    tab = [];
+    for(a[0] in {x:1, y: 2}) {
+        tab.push(a[0]);
+    }
+    assert(tab.toString(), "x,y", "for_in");
+
+    /* variable definition in the for in */
+    tab = [];
+    for(var j in {x:1, y: 2}) {
+        tab.push(j);
+    }
+    assert(tab.toString(), "x,y", "for_in");
+
+    /* variable assigment in the for in */
+    tab = [];
+    for(var k = 2 in {x:1, y: 2}) {
+        tab.push(k);
+    }
+    assert(tab.toString(), "x,y", "for_in");
+}
+
+function test_for_in2()
+{
+    var i;
+    tab = [];
+    for(i in {x:1, y: 2, z:3}) {
+        if (i === "y")
+            continue;
+        tab.push(i);
+    }
+    assert(tab.toString() == "x,z");
+
+    tab = [];
+    for(i in {x:1, y: 2, z:3}) {
+        if (i === "z")
+            break;
+        tab.push(i);
+    }
+    assert(tab.toString() == "x,y");
+}
+
+function test_for_break()
+{
+    var i, c;
+    c = 0;
+    L1: for(i = 0; i < 3; i++) {
+        c++;
+        if (i == 0)
+            continue;
+        while (1) {
+            break L1;
+        }
+    }
+    assert(c === 2 && i === 1);
+}
+
+function test_switch1()
+{
+    var i, a, s;
+    s = "";
+    for(i = 0; i < 3; i++) {
+        a = "?";
+        switch(i) {
+        case 0:
+            a = "a";
+            break;
+        case 1:
+            a = "b";
+            break;
+        default:
+            a = "c";
+            break;
+        }
+        s += a;
+    }
+    assert(s === "abc" && i === 3);
+}
+
+function test_switch2()
+{
+    var i, a, s;
+    s = "";
+    for(i = 0; i < 4; i++) {
+        a = "?";
+        switch(i) {
+        case 0:
+            a = "a";
+            break;
+        case 1:
+            a = "b";
+            break;
+        case 2:
+            continue;
+        default:
+            a = "" + i;
+            break;
+        }
+        s += a;
+    }
+    assert(s === "ab3" && i === 4);
+}
+
+function test_try_catch1()
+{
+    try {
+        throw "hello";
+    } catch (e) {
+        assert(e, "hello", "catch");
+        return;
+    }
+    assert(false, "catch");
+}
+
+function test_try_catch2()
+{
+    var a;
+    try {
+        a = 1;
+    } catch (e) {
+        a = 2;
+    }
+    assert(a, 1, "catch");
+}
+
+function test_try_catch3()
+{
+    var s;
+    s = "";
+    try {
+        s += "t";
+    } catch (e) {
+        s += "c";
+    } finally {
+        s += "f";
+    }
+    assert(s, "tf", "catch");
+}
+
+function test_try_catch4()
+{
+    var s;
+    s = "";
+    try {
+        s += "t";
+        throw "c";
+    } catch (e) {
+        s += e;
+    } finally {
+        s += "f";
+    }
+    assert(s, "tcf", "catch");
+}
+
+function test_try_catch5()
+{
+    var s;
+    s = "";
+    for(;;) {
+        try {
+            s += "t";
+            break;
+            s += "b";
+        } finally {
+            s += "f";
+        }
+    }
+    assert(s, "tf", "catch");
+}
+
+function test_try_catch6()
+{
+    function f() {
+        try {
+            s += 't';
+            return 1;
+        } finally {
+            s += "f";
+        }
+    }
+    var s = "";
+    assert(f() === 1);
+    assert(s, "tf", "catch6");
+}
+
+function test_try_catch7()
+{
+    var s;
+    s = "";
+
+    try {
+        try {
+            s += "t";
+            throw "a";
+        } finally {
+            s += "f";
+        }
+    } catch(e) {
+        s += e;
+    } finally {
+        s += "g";
+    }
+    assert(s, "tfag", "catch");
+}
+
+function test_try_catch8()
+{
+    var i, s;
+    
+    s = "";
+    for(var i in {x:1, y:2}) {
+        try {
+            s += i;
+            throw "a";
+        } catch (e) {
+            s += e;
+        } finally {
+            s += "f";
+        }
+    }
+    assert(s === "xafyaf");
+}
+
+test_while();
+test_while_break();
+test_do_while();
+test_for();
+test_for_break();
+test_switch1();
+test_switch2();
+test_for_in();
+test_for_in2();
+
+test_try_catch1();
+test_try_catch2();
+test_try_catch3();
+test_try_catch4();
+test_try_catch5();
+test_try_catch6();
+test_try_catch7();
+test_try_catch8();

third_party/quickjs/tests/test_op_overloading.js

@@ -0,0 +1,207 @@
+"use strict";
+
+function assert(actual, expected, message) {
+    if (arguments.length == 1)
+        expected = true;
+
+    if (actual === expected)
+        return;
+
+    if (actual !== null && expected !== null
+    &&  typeof actual == 'object' && typeof expected == 'object'
+    &&  actual.toString() === expected.toString())
+        return;
+
+    throw Error("assertion failed: got |" + actual + "|" +
+                ", expected |" + expected + "|" +
+                (message ? " (" + message + ")" : ""));
+}
+
+/* operators overloading with Operators.create() */
+function test_operators_create() {
+    class Vec2
+    {
+        constructor(x, y) {
+            this.x = x;
+            this.y = y;
+        }
+        static mul_scalar(p1, a) {
+            var r = new Vec2();
+            r.x = p1.x * a;
+            r.y = p1.y * a;
+            return r;
+        }
+        toString() {
+            return "Vec2(" + this.x + "," + this.y + ")";
+        }
+    }
+    
+    Vec2.prototype[Symbol.operatorSet] = Operators.create(
+    {
+        "+"(p1, p2) {
+            var r = new Vec2();
+            r.x = p1.x + p2.x;
+            r.y = p1.y + p2.y;
+            return r;
+        },
+        "-"(p1, p2) {
+            var r = new Vec2();
+            r.x = p1.x - p2.x;
+            r.y = p1.y - p2.y;
+            return r;
+        },
+        "=="(a, b) {
+            return a.x == b.x && a.y == b.y;
+        },
+        "<"(a, b) {
+            var r;
+            /* lexicographic order */
+            if (a.x == b.x)
+                r = (a.y < b.y);
+            else
+                r = (a.x < b.x);
+            return r;
+        },
+        "++"(a) {
+            var r = new Vec2();
+            r.x = a.x + 1;
+            r.y = a.y + 1;
+            return r;
+        }
+    },
+    {
+        left: Number,
+        "*"(a, b) {
+            return Vec2.mul_scalar(b, a);
+        }
+    },
+    {
+        right: Number,
+        "*"(a, b) {
+            return Vec2.mul_scalar(a, b);
+        }
+    });
+
+    var a = new Vec2(1, 2);
+    var b = new Vec2(3, 4);
+    var r;
+
+    r = a * 2 + 3 * b;
+    assert(r.x === 11 && r.y === 16);
+    assert(a == a, true);
+    assert(a == b, false);
+    assert(a != a, false);
+    assert(a < b, true);
+    assert(a <= b, true);
+    assert(b < a, false);
+    assert(b <= a, false);
+    assert(a <= a, true);
+    assert(a >= a, true);
+    a++;
+    assert(a.x === 2 && a.y === 3);
+    r = ++a;
+    assert(a.x === 3 && a.y === 4);
+    assert(r === a);
+}
+
+/* operators overloading thru inheritance */
+function test_operators()
+{
+    var Vec2;
+
+    function mul_scalar(p1, a) {
+        var r = new Vec2();
+        r.x = p1.x * a;
+        r.y = p1.y * a;
+        return r;
+    }
+
+    var vec2_ops = Operators({
+        "+"(p1, p2) {
+            var r = new Vec2();
+            r.x = p1.x + p2.x;
+            r.y = p1.y + p2.y;
+            return r;
+        },
+        "-"(p1, p2) {
+            var r = new Vec2();
+            r.x = p1.x - p2.x;
+            r.y = p1.y - p2.y;
+            return r;
+        },
+        "=="(a, b) {
+            return a.x == b.x && a.y == b.y;
+        },
+        "<"(a, b) {
+            var r;
+            /* lexicographic order */
+            if (a.x == b.x)
+                r = (a.y < b.y);
+            else
+                r = (a.x < b.x);
+            return r;
+        },
+        "++"(a) {
+            var r = new Vec2();
+            r.x = a.x + 1;
+            r.y = a.y + 1;
+            return r;
+        }
+    },
+    {
+        left: Number,
+        "*"(a, b) {
+            return mul_scalar(b, a);
+        }
+    },
+    {
+        right: Number,
+        "*"(a, b) {
+            return mul_scalar(a, b);
+        }
+    });
+
+    Vec2 = class Vec2 extends vec2_ops
+    {
+        constructor(x, y) {
+            super();
+            this.x = x;
+            this.y = y;
+        }
+        toString() {
+            return "Vec2(" + this.x + "," + this.y + ")";
+        }
+    }
+    
+    var a = new Vec2(1, 2);
+    var b = new Vec2(3, 4);
+    var r;
+
+    r = a * 2 + 3 * b;
+    assert(r.x === 11 && r.y === 16);
+    assert(a == a, true);
+    assert(a == b, false);
+    assert(a != a, false);
+    assert(a < b, true);
+    assert(a <= b, true);
+    assert(b < a, false);
+    assert(b <= a, false);
+    assert(a <= a, true);
+    assert(a >= a, true);
+    a++;
+    assert(a.x === 2 && a.y === 3);
+    r = ++a;
+    assert(a.x === 3 && a.y === 4);
+    assert(r === a);
+}
+
+function test_default_op()
+{
+    assert(Object(1) + 2, 3);
+    assert(Object(1) + true, 2);
+    assert(-Object(1), -1);
+}
+
+test_operators_create();
+test_operators();
+test_default_op();

third_party/quickjs/tests/test_qjscalc.js

@@ -0,0 +1,256 @@
+"use math";
+"use strict";
+
+function assert(actual, expected, message) {
+    if (arguments.length == 1)
+        expected = true;
+
+    if (actual === expected)
+        return;
+
+    if (actual !== null && expected !== null
+    &&  typeof actual == 'object' && typeof expected == 'object'
+    &&  actual.toString() === expected.toString())
+        return;
+
+    throw Error("assertion failed: got |" + actual + "|" +
+                ", expected |" + expected + "|" +
+                (message ? " (" + message + ")" : ""));
+}
+
+function assertThrows(err, func)
+{
+    var ex;
+    ex = false;
+    try {
+        func();
+    } catch(e) {
+        ex = true;
+        assert(e instanceof err);
+    }
+    assert(ex, true, "exception expected");
+}
+
+// load more elaborate version of assert if available
+try { __loadScript("test_assert.js"); } catch(e) {}
+
+/*----------------*/
+
+function pow(a, n)
+{
+    var r, i;
+    r = 1;
+    for(i = 0; i < n; i++)
+        r *= a;
+    return r;
+}
+
+function test_integer()
+{
+    var a, r;
+    a = pow(3, 100);
+    assert((a - 1) != a);
+    assert(a == 515377520732011331036461129765621272702107522001);
+    assert(a == 0x5a4653ca673768565b41f775d6947d55cf3813d1);
+    assert(Integer.isInteger(1) === true);
+    assert(Integer.isInteger(1.0) === false);
+
+    assert(Integer.floorLog2(0) === -1);
+    assert(Integer.floorLog2(7) === 2);
+
+    r = 1 << 31;
+    assert(r, 2147483648, "1 << 31 === 2147483648");
+    
+    r = 1 << 32;
+    assert(r, 4294967296, "1 << 32 === 4294967296");
+    
+    r = (1 << 31) < 0;
+    assert(r, false, "(1 << 31) < 0 === false");
+
+    assert(typeof 1 === "number");
+    assert(typeof 9007199254740991 === "number");
+    assert(typeof 9007199254740992 === "bigint");
+}
+
+function test_float()
+{
+    assert(typeof 1.0 === "bigfloat");
+    assert(1 == 1.0);
+    assert(1 !== 1.0);
+}
+
+/* jscalc tests */
+
+function test_modulo()
+{
+    var i, p, a, b;
+
+    /* Euclidian modulo operator */
+    assert((-3) % 2 == 1);
+    assert(3 % (-2) == 1);
+
+    p = 101;
+    for(i = 1; i < p; i++) {
+        a = Integer.invmod(i, p);
+        assert(a >= 0 && a < p);
+        assert((i * a) % p == 1);
+    }
+
+    assert(Integer.isPrime(2^107-1));
+    assert(!Integer.isPrime((2^107-1) * (2^89-1)));
+    a = Integer.factor((2^89-1)*2^3*11*13^2*1009);
+    assert(a == [ 2,2,2,11,13,13,1009,618970019642690137449562111 ]);
+}
+
+function test_fraction()
+{
+    assert((1/3 + 1).toString(), "4/3")
+    assert((2/3)^30, 1073741824/205891132094649);
+    assert(1/3 < 2/3);
+    assert(1/3 < 1);
+    assert(1/3 == 1.0/3);
+    assert(1.0/3 < 2/3);
+}
+
+function test_mod()
+{
+    var a, b, p;
+    
+    a = Mod(3, 101);
+    b = Mod(-1, 101);
+    assert((a + b) == Mod(2, 101));
+    assert(a ^ 100 == Mod(1, 101));
+
+    p = 2 ^ 607 - 1; /* mersenne prime */
+    a = Mod(3, p) ^ (p - 1);
+    assert(a == Mod(1, p));
+}
+
+function test_polynomial()
+{
+    var a, b, q, r, t, i;
+    a = (1 + X) ^ 4;
+    assert(a == X^4+4*X^3+6*X^2+4*X+1);
+    
+    r = (1 + X);
+    q = (1+X+X^2);
+    b = (1 - X^2);
+    a = q * b + r;
+    t = Polynomial.divrem(a, b);
+    assert(t[0] == q);
+    assert(t[1] == r);
+
+    a = 1 + 2*X + 3*X^2;
+    assert(a.apply(0.1) == 1.23);
+
+    a = 1-2*X^2+2*X^3;
+    assert(deriv(a) == (6*X^2-4*X));
+    assert(deriv(integ(a)) == a);
+
+    a = (X-1)*(X-2)*(X-3)*(X-4)*(X-0.1);
+    r = polroots(a);
+    for(i = 0; i < r.length; i++) {
+        b = abs(a.apply(r[i]));
+        assert(b <= 1e-13);
+    }
+}
+
+function test_poly_mod()
+{
+    var a, p;
+
+    /* modulo using polynomials */
+    p = X^2 + X + 1;
+    a = PolyMod(3+X, p) ^ 10;
+    assert(a == PolyMod(-3725*X-18357, p));
+
+    a = PolyMod(1/X, 1+X^2);
+    assert(a == PolyMod(-X, X^2+1));
+}
+
+function test_rfunc()
+{
+    var a;
+    a = (X+1)/((X+1)*(X-1));
+    assert(a == 1/(X-1));
+    a = (X + 2) / (X - 2);
+    assert(a.apply(1/3) == -7/5);
+
+    assert(deriv((X^2-X+1)/(X-1)) == (X^2-2*X)/(X^2-2*X+1));
+}
+
+function test_series()
+{
+    var a, b;
+    a = 1+X+O(X^5);
+    b = a.inverse();
+    assert(b == 1-X+X^2-X^3+X^4+O(X^5));
+    assert(deriv(b) == -1+2*X-3*X^2+4*X^3+O(X^4));
+    assert(deriv(integ(b)) == b);
+
+    a = Series(1/(1-X), 5);
+    assert(a == 1+X+X^2+X^3+X^4+O(X^5));
+    b = a.apply(0.1);
+    assert(b == 1.1111);
+
+    assert(exp(3*X^2+O(X^10)) == 1+3*X^2+9/2*X^4+9/2*X^6+27/8*X^8+O(X^10));
+    assert(sin(X+O(X^6)) == X-1/6*X^3+1/120*X^5+O(X^6));
+    assert(cos(X+O(X^6)) == 1-1/2*X^2+1/24*X^4+O(X^6));
+    assert(tan(X+O(X^8)) == X+1/3*X^3+2/15*X^5+17/315*X^7+O(X^8));
+        assert((1+X+O(X^6))^(2+X) == 1+2*X+2*X^2+3/2*X^3+5/6*X^4+5/12*X^5+O(X^6));
+}
+
+function test_matrix()
+{
+    var a, b, r;
+    a = [[1, 2],[3, 4]];
+    b = [3, 4];
+    r = a * b;
+    assert(r == [11, 25]);
+    r = (a^-1) * 2;
+    assert(r == [[-4, 2],[3, -1]]);
+
+    assert(norm2([1,2,3]) == 14);
+
+    assert(diag([1,2,3]) == [ [ 1, 0, 0 ], [ 0, 2, 0 ], [ 0, 0, 3 ] ]);
+    assert(trans(a) == [ [ 1, 3 ], [ 2, 4 ] ]);
+    assert(trans([1,2,3]) == [[1,2,3]]);
+    assert(trace(a) == 5);
+
+    assert(charpoly(Matrix.hilbert(4)) == X^4-176/105*X^3+3341/12600*X^2-41/23625*X+1/6048000);
+    assert(det(Matrix.hilbert(4)) == 1/6048000);
+
+    a = [[1,2,1],[-2,-3,1],[3,5,0]];
+    assert(rank(a) == 2);
+    assert(ker(a) == [ [ 5 ], [ -3 ], [ 1 ] ]);
+
+    assert(dp([1, 2, 3], [3, -4, -7]) === -26);
+    assert(cp([1, 2, 3], [3, -4, -7]) == [ -2, 16, -10 ]);
+}
+
+function assert_eq(a, ref)
+{
+    assert(abs(a / ref - 1.0) <= 1e-15);
+}
+
+function test_trig()
+{
+    assert_eq(sin(1/2), 0.479425538604203);
+    assert_eq(sin(2+3*I), 9.154499146911428-4.168906959966565*I);
+    assert_eq(cos(2+3*I), -4.189625690968807-9.109227893755337*I);
+    assert_eq((2+0.5*I)^(1.1-0.5*I), 2.494363021357619-0.23076804554558092*I);
+    assert_eq(sqrt(2*I), 1 + I);
+}
+
+test_integer();
+test_float();
+
+test_modulo();
+test_fraction();
+test_mod();
+test_polynomial();
+test_poly_mod();
+test_rfunc();
+test_series();
+test_matrix();
+test_trig();

third_party/quickjs/tests/test_std.js

@@ -0,0 +1,281 @@
+import * as std from "std";
+import * as os from "os";
+
+function assert(actual, expected, message) {
+    if (arguments.length == 1)
+        expected = true;
+
+    if (actual === expected)
+        return;
+
+    if (actual !== null && expected !== null
+    &&  typeof actual == 'object' && typeof expected == 'object'
+    &&  actual.toString() === expected.toString())
+        return;
+
+    throw Error("assertion failed: got |" + actual + "|" +
+                ", expected |" + expected + "|" +
+                (message ? " (" + message + ")" : ""));
+}
+
+// load more elaborate version of assert if available
+try { std.loadScript("test_assert.js"); } catch(e) {}
+
+/*----------------*/
+
+function test_printf()
+{
+    assert(std.sprintf("a=%d s=%s", 123, "abc"), "a=123 s=abc");
+    assert(std.sprintf("%010d", 123), "0000000123");
+    assert(std.sprintf("%x", -2), "fffffffe");
+    assert(std.sprintf("%lx", -2), "fffffffffffffffe");
+    assert(std.sprintf("%10.1f", 2.1), "       2.1");
+    assert(std.sprintf("%*.*f", 10, 2, -2.13), "     -2.13");
+    assert(std.sprintf("%#lx", 0x7fffffffffffffffn), "0x7fffffffffffffff");
+}
+
+function test_file1()
+{
+    var f, len, str, size, buf, ret, i, str1;
+
+    f = std.tmpfile();
+    str = "hello world\n";
+    f.puts(str);
+
+    f.seek(0, std.SEEK_SET);
+    str1 = f.readAsString();
+    assert(str1 === str);
+    
+    f.seek(0, std.SEEK_END);
+    size = f.tell();
+    assert(size === str.length);
+
+    f.seek(0, std.SEEK_SET);
+
+    buf = new Uint8Array(size);
+    ret = f.read(buf.buffer, 0, size);
+    assert(ret === size);
+    for(i = 0; i < size; i++)
+        assert(buf[i] === str.charCodeAt(i));
+
+    f.close();
+}
+
+function test_file2()
+{
+    var f, str, i, size;
+    f = std.tmpfile();
+    str = "hello world\n";
+    size = str.length;
+    for(i = 0; i < size; i++)
+        f.putByte(str.charCodeAt(i));
+    f.seek(0, std.SEEK_SET);
+    for(i = 0; i < size; i++) {
+        assert(str.charCodeAt(i) === f.getByte());
+    }
+    assert(f.getByte() === -1);
+    f.close();
+}
+
+function test_getline()
+{
+    var f, line, line_count, lines, i;
+    
+    lines = ["hello world", "line 1", "line 2" ];
+    f = std.tmpfile();
+    for(i = 0; i < lines.length; i++) {
+        f.puts(lines[i], "\n");
+    }
+
+    f.seek(0, std.SEEK_SET);
+    assert(!f.eof());
+    line_count = 0;
+    for(;;) {
+        line = f.getline();
+        if (line === null)
+            break;
+        assert(line == lines[line_count]);
+        line_count++;
+    }
+    assert(f.eof());
+    assert(line_count === lines.length);
+
+    f.close();
+}
+ 
+function test_popen()
+{
+    var str, f, fname = "tmp_file.txt";
+    var content = "hello world";
+
+    f = std.open(fname, "w");
+    f.puts(content);
+    f.close();
+
+    /* test loadFile */
+    assert(std.loadFile(fname), content);
+    
+    /* execute the 'cat' shell command */
+    f = std.popen("cat " + fname, "r");
+    str = f.readAsString();
+    f.close();
+
+    assert(str, content);
+
+    os.remove(fname);
+}
+
+function test_ext_json()
+{
+    var expected, input, obj;
+    expected = '{"x":false,"y":true,"z2":null,"a":[1,8,160],"s":"str"}';
+    input = `{ "x":false, /*comments are allowed */
+               "y":true,  // also a comment
+               z2:null, // unquoted property names
+               "a":[+1,0o10,0xa0,], // plus prefix, octal, hexadecimal
+               "s":"str",} // trailing comma in objects and arrays
+            `;
+    obj = std.parseExtJSON(input);
+    assert(JSON.stringify(obj), expected);
+}
+
+function test_os()
+{
+    var fd, fpath, fname, fdir, buf, buf2, i, files, err, fdate, st, link_path;
+
+    assert(os.isatty(0));
+
+    fdir = "test_tmp_dir";
+    fname = "tmp_file.txt";
+    fpath = fdir + "/" + fname;
+    link_path = fdir + "/test_link";
+    
+    os.remove(link_path);
+    os.remove(fpath);
+    os.remove(fdir);
+
+    err = os.mkdir(fdir, 0o755);
+    assert(err === 0);
+    
+    fd = os.open(fpath, os.O_RDWR | os.O_CREAT | os.O_TRUNC);
+    assert(fd >= 0);
+    
+    buf = new Uint8Array(10);
+    for(i = 0; i < buf.length; i++)
+        buf[i] = i;
+    assert(os.write(fd, buf.buffer, 0, buf.length) === buf.length);
+
+    assert(os.seek(fd, 0, std.SEEK_SET) === 0);
+    buf2 = new Uint8Array(buf.length);
+    assert(os.read(fd, buf2.buffer, 0, buf2.length) === buf2.length);
+    
+    for(i = 0; i < buf.length; i++)
+        assert(buf[i] == buf2[i]);
+    
+    if (typeof BigInt !== "undefined") {
+        assert(os.seek(fd, BigInt(6), std.SEEK_SET), BigInt(6));
+        assert(os.read(fd, buf2.buffer, 0, 1) === 1);
+        assert(buf[6] == buf2[0]);
+    }
+    
+    assert(os.close(fd) === 0);
+
+    [files, err] = os.readdir(fdir);
+    assert(err, 0);
+    assert(files.indexOf(fname) >= 0);
+
+    fdate = 10000;
+
+    err = os.utimes(fpath, fdate, fdate);
+    assert(err, 0);
+    
+    [st, err] = os.stat(fpath);
+    assert(err, 0);
+    assert(st.mode & os.S_IFMT, os.S_IFREG);
+    assert(st.mtime, fdate);
+
+    err = os.symlink(fname, link_path);
+    assert(err === 0);
+    
+    [st, err] = os.lstat(link_path);
+    assert(err, 0);
+    assert(st.mode & os.S_IFMT, os.S_IFLNK);
+
+    [buf, err] = os.readlink(link_path);
+    assert(err, 0);
+    assert(buf, fname);
+    
+    assert(os.remove(link_path) === 0);
+
+    [buf, err] = os.getcwd();
+    assert(err, 0);
+
+    [buf2, err] = os.realpath(".");
+    assert(err, 0);
+
+    assert(buf, buf2);
+    
+    assert(os.remove(fpath) === 0);
+
+    fd = os.open(fpath, os.O_RDONLY);
+    assert(fd < 0);
+
+    assert(os.remove(fdir) === 0);
+}
+
+function test_os_exec()
+{
+    var ret, fds, pid, f, status;
+
+    ret = os.exec(["true"]);
+    assert(ret, 0);
+
+    ret = os.exec(["/bin/sh", "-c", "exit 1"], { usePath: false });
+    assert(ret, 1);
+    
+    fds = os.pipe();
+    pid = os.exec(["sh", "-c", "echo $FOO"], {
+        stdout: fds[1],
+        block: false,
+        env: { FOO: "hello" },
+    } );
+    assert(pid >= 0);
+    os.close(fds[1]); /* close the write end (as it is only in the child)  */
+    f = std.fdopen(fds[0], "r");
+    assert(f.getline(), "hello");
+    assert(f.getline(), null);
+    f.close();
+    [ret, status] = os.waitpid(pid, 0);
+    assert(ret, pid);
+    assert(status & 0x7f, 0); /* exited */
+    assert(status >> 8, 0); /* exit code */
+
+    pid = os.exec(["cat"], { block: false } );
+    assert(pid >= 0);
+    os.kill(pid, os.SIGQUIT);
+    [ret, status] = os.waitpid(pid, 0);
+    assert(ret, pid);
+    assert(status & 0x7f, os.SIGQUIT);
+}
+
+function test_timer()
+{
+    var th, i;
+
+    /* just test that a timer can be inserted and removed */
+    th = [];
+    for(i = 0; i < 3; i++)
+        th[i] = os.setTimeout(function () { }, 1000);
+    for(i = 0; i < 3; i++)
+        os.clearTimeout(th[i]);
+}
+
+test_printf();
+test_file1();
+test_file2();
+test_getline();
+test_popen();
+test_os();
+test_os_exec();
+test_timer();
+test_ext_json();

third_party/quickjs/tests/test_worker.js

@@ -0,0 +1,62 @@
+/* os.Worker API test */
+import * as std from "std";
+import * as os from "os";
+
+function assert(actual, expected, message) {
+    if (arguments.length == 1)
+        expected = true;
+
+    if (actual === expected)
+        return;
+
+    if (actual !== null && expected !== null
+    &&  typeof actual == 'object' && typeof expected == 'object'
+    &&  actual.toString() === expected.toString())
+        return;
+
+    throw Error("assertion failed: got |" + actual + "|" +
+                ", expected |" + expected + "|" +
+                (message ? " (" + message + ")" : ""));
+}
+
+var worker;
+
+function test_worker()
+{
+    var counter;
+
+    worker = new os.Worker("./test_worker_module.js");
+
+    counter = 0;
+    worker.onmessage = function (e) {
+        var ev = e.data;
+//        print("recv", JSON.stringify(ev));
+        switch(ev.type) {
+        case "num":
+            assert(ev.num, counter);
+            counter++;
+            if (counter == 10) {
+                /* test SharedArrayBuffer modification */
+                let sab = new SharedArrayBuffer(10);
+                let buf = new Uint8Array(sab);
+                worker.postMessage({ type: "sab", buf: buf });
+            }
+            break;
+        case "sab_done":
+            {
+                let buf = ev.buf;
+                /* check that the SharedArrayBuffer was modified */
+                assert(buf[2], 10);
+                worker.postMessage({ type: "abort" });
+            }
+            break;
+        case "done":
+            /* terminate */
+            worker.onmessage = null;
+            break;
+        }
+    };
+}
+
+
+test_worker();

third_party/quickjs/tests/test_worker_module.js

@@ -0,0 +1,31 @@
+/* Worker code for test_worker.js */
+import * as std from "std";
+import * as os from "os";
+
+var parent = os.Worker.parent;
+
+function handle_msg(e) {
+    var ev = e.data;
+    //          print("child_recv", JSON.stringify(ev));
+    switch(ev.type) {
+    case "abort":
+        parent.postMessage({ type: "done" });
+        break;
+    case "sab":
+        /* modify the SharedArrayBuffer */
+        ev.buf[2] = 10;
+        parent.postMessage({ type: "sab_done", buf: ev.buf });
+        break;
+    }
+}
+
+function worker_main() {
+    var i;
+    
+    parent.onmessage = handle_msg;
+    for(i = 0; i < 10; i++) {
+        parent.postMessage({ type: "num", num: i }); 
+    }
+}
+
+worker_main();