Move //libdeno to //core/libdeno (#2015)

Fixes some sed errors introduced in c43cfe.

Unfortunately moving libdeno required splitting build.rs into two parts,
one for cli and one for core.

I've also removed the arm64 build - it's complicating things at this
re-org and we're not even testing it. I need to swing back to it and get
tools/test.py running for it.

core/libdeno/libdeno_test.js

@@ -0,0 +1,197 @@
+// Copyright 2018-2019 the Deno authors. All rights reserved. MIT license.
+
+// A simple runtime that doesn't involve typescript or protobufs to test
+// libdeno. Invoked by libdeno_test.cc
+
+const global = this;
+
+function assert(cond) {
+  if (!cond) throw Error("libdeno_test.js assert failed");
+}
+
+global.CanCallFunction = () => {
+  Deno.core.print("Hello world from foo");
+  return "foo";
+};
+
+// This object is created to test snapshotting.
+// See DeserializeInternalFieldsCallback and SerializeInternalFieldsCallback.
+const snapshotted = new Uint8Array([1, 3, 3, 7]);
+
+global.TypedArraySnapshots = () => {
+  assert(snapshotted[0] === 1);
+  assert(snapshotted[1] === 3);
+  assert(snapshotted[2] === 3);
+  assert(snapshotted[3] === 7);
+};
+
+global.RecvReturnEmpty = () => {
+  const m1 = new Uint8Array("abc".split("").map(c => c.charCodeAt(0)));
+  const m2 = m1.slice();
+  const r1 = Deno.core.send(m1);
+  assert(r1 == null);
+  const r2 = Deno.core.send(m2);
+  assert(r2 == null);
+};
+
+global.RecvReturnBar = () => {
+  const m = new Uint8Array("abc".split("").map(c => c.charCodeAt(0)));
+  const r = Deno.core.send(m);
+  assert(r instanceof Uint8Array);
+  assert(r.byteLength === 3);
+  const rstr = String.fromCharCode(...r);
+  assert(rstr === "bar");
+};
+
+global.DoubleRecvFails = () => {
+  // Deno.core.recv is an internal function and should only be called once from the
+  // runtime.
+  Deno.core.recv((_channel, _msg) => assert(false));
+  Deno.core.recv((_channel, _msg) => assert(false));
+};
+
+global.SendRecvSlice = () => {
+  const abLen = 1024;
+  let buf = new Uint8Array(abLen);
+  for (let i = 0; i < 5; i++) {
+    // Set first and last byte, for verification by the native side.
+    buf[0] = 100 + i;
+    buf[buf.length - 1] = 100 - i;
+    // On the native side, the slice is shortened by 19 bytes.
+    buf = Deno.core.send(buf);
+    assert(buf.byteOffset === i * 11);
+    assert(buf.byteLength === abLen - i * 30 - 19);
+    assert(buf.buffer.byteLength == abLen);
+    // Look for values written by the backend.
+    assert(buf[0] === 200 + i);
+    assert(buf[buf.length - 1] === 200 - i);
+    // On the JS side, the start of the slice is moved up by 11 bytes.
+    buf = buf.subarray(11);
+    assert(buf.byteOffset === (i + 1) * 11);
+    assert(buf.byteLength === abLen - (i + 1) * 30);
+  }
+};
+
+global.JSSendArrayBufferViewTypes = () => {
+  // Test that ArrayBufferView slices are transferred correctly.
+  // Send Uint8Array.
+  const ab1 = new ArrayBuffer(4321);
+  const u8 = new Uint8Array(ab1, 2468, 1000);
+  u8[0] = 1;
+  Deno.core.send(u8);
+  // Send Uint32Array.
+  const ab2 = new ArrayBuffer(4321);
+  const u32 = new Uint32Array(ab2, 2468, 1000 / Uint32Array.BYTES_PER_ELEMENT);
+  u32[0] = 0x02020202;
+  Deno.core.send(u32);
+  // Send DataView.
+  const ab3 = new ArrayBuffer(4321);
+  const dv = new DataView(ab3, 2468, 1000);
+  dv.setUint8(0, 3);
+  Deno.core.send(dv);
+};
+
+// The following join has caused SnapshotBug to segfault when using kKeep.
+[].join("");
+
+global.SnapshotBug = () => {
+  assert("1,2,3" === String([1, 2, 3]));
+};
+
+global.GlobalErrorHandling = () => {
+  eval("\n\n notdefined()\n//# sourceURL=helloworld.js");
+};
+
+// Allocate this buf at the top level to avoid GC.
+const zeroCopyBuf = new Uint8Array([3, 4]);
+
+global.ZeroCopyBuf = () => {
+  const a = new Uint8Array([1, 2]);
+  const b = zeroCopyBuf;
+  // The second parameter of send should modified by the
+  // privileged side.
+  const r = Deno.core.send(a, b);
+  assert(r == null);
+  // b is different.
+  assert(b[0] === 4);
+  assert(b[1] === 2);
+  // Now we modify it again.
+  b[0] = 9;
+  b[1] = 8;
+};
+
+global.CheckPromiseErrors = () => {
+  async function fn() {
+    throw new Error("message");
+  }
+
+  (async () => {
+    try {
+      await fn();
+    } catch (e) {
+      Deno.core.send(new Uint8Array([42]));
+    }
+  })();
+};
+
+global.Shared = () => {
+  const ab = Deno.core.shared;
+  assert(ab instanceof SharedArrayBuffer);
+  assert(Deno.core.shared != undefined);
+  assert(ab.byteLength === 3);
+  const ui8 = new Uint8Array(ab);
+  assert(ui8[0] === 0);
+  assert(ui8[1] === 1);
+  assert(ui8[2] === 2);
+  ui8[0] = 42;
+  ui8[1] = 43;
+  ui8[2] = 44;
+};
+
+global.LibDenoEvalContext = () => {
+  const [result, errInfo] = Deno.core.evalContext("let a = 1; a");
+  assert(result === 1);
+  assert(!errInfo);
+  const [result2, errInfo2] = Deno.core.evalContext("a = a + 1; a");
+  assert(result2 === 2);
+  assert(!errInfo2);
+};
+
+global.LibDenoEvalContextError = () => {
+  const [result, errInfo] = Deno.core.evalContext("not_a_variable");
+  assert(!result);
+  assert(!!errInfo);
+  assert(errInfo.isNativeError); // is a native error (ReferenceError)
+  assert(!errInfo.isCompileError); // is NOT a compilation error
+  assert(errInfo.thrown.message === "not_a_variable is not defined");
+
+  const [result2, errInfo2] = Deno.core.evalContext("throw 1");
+  assert(!result2);
+  assert(!!errInfo2);
+  assert(!errInfo2.isNativeError); // is NOT a native error
+  assert(!errInfo2.isCompileError); // is NOT a compilation error
+  assert(errInfo2.thrown === 1);
+
+  const [result3, errInfo3] = Deno.core.evalContext(
+    "class AError extends Error {}; throw new AError('e')"
+  );
+  assert(!result3);
+  assert(!!errInfo3);
+  assert(errInfo3.isNativeError); // extend from native error, still native error
+  assert(!errInfo3.isCompileError); // is NOT a compilation error
+  assert(errInfo3.thrown.message === "e");
+
+  const [result4, errInfo4] = Deno.core.evalContext("{");
+  assert(!result4);
+  assert(!!errInfo4);
+  assert(errInfo4.isNativeError); // is a native error (SyntaxError)
+  assert(errInfo4.isCompileError); // is a compilation error! (braces not closed)
+  assert(errInfo4.thrown.message === "Unexpected end of input");
+
+  const [result5, errInfo5] = Deno.core.evalContext("eval('{')");
+  assert(!result5);
+  assert(!!errInfo5);
+  assert(errInfo5.isNativeError); // is a native error (SyntaxError)
+  assert(!errInfo5.isCompileError); // is NOT a compilation error! (just eval)
+  assert(errInfo5.thrown.message === "Unexpected end of input");
+};