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// 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");
};
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