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// Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// VMOptions=--optimization-counter-threshold=5
import 'package:expect/expect.dart';
import "package:async_helper/async_helper.dart";
import 'dart:async';
// It does not matter where a future is generated.
bar(p) async => p;
baz(p) => new Future(() => p);
foo() async {
var b = 0;
for (int i = 0; i < 10; i++) {
b += (await bar(1)) + (await baz(2));
}
return b;
}
faa() async => (await bar('faa')).length;
quaz(p) async {
var x = 0;
try {
for (var j = 0; j < 10; j++) {
x += await baz(j);
}
return x;
} finally {
Expect.equals(x, 45);
return p;
}
}
quazz() async {
var x = 0;
try {
try {
x = await bar(1);
throw x;
} catch (e1) {
var y = await baz(e1 + 1);
throw y;
}
} catch (e2) {
return e2;
}
}
nesting() async {
try {
try {
var x = 1;
var y = () async {
try {
var z = (await bar(3)) + x;
throw z;
} catch (e1) {
return e1;
}
};
var a = await y();
throw a;
} catch (e2) {
throw e2 + 1;
}
} catch (e3) {
return e3;
}
}
awaitAsUnary(a, b) async {
return await a + await b;
}
awaitIf(p) async {
if (p < (await bar(5))) {
return "p<5";
} else {
return "p>=5";
}
}
awaitNestedIf(p, q) async {
if (p == (await bar(5))) {
if (q < (await bar(7))) {
return "q<7";
} else {
return "q>=7";
}
} else {
return "p!=5";
}
return "!";
}
awaitElseIf(p) async {
if (p > (await bar(5))) {
return "p>5";
} else if (p < (await bar(5))) {
return "p<5";
} else {
return "p==5";
}
return "!";
}
awaitReturn() async {
return await bar(17);
}
awaitSwitch() async {
switch (await bar(3)) {
case 1:
return 1;
break;
case 3:
return 3;
break;
default:
return -1;
}
}
awaitNestedWhile(int i, int j) async {
int savedJ = j;
var decI = () async {
return i--;
};
var decJ = () async {
return j--;
};
var k = 0;
while ((await decI()) > 0) {
j = savedJ;
while (0 < (await decJ())) {
k++;
}
}
return k;
}
awaitNestedDoWhile(int i, int j) async {
int savedJ = j;
var decI = () async {
return i--;
};
var decJ = () async {
return j--;
};
var k = 0;
do {
do {
k++;
} while (0 < (await decI()));
} while ((await decJ()) > 0);
return k;
}
awaitFor() async {
var asyncInc = (p) async => p + 1;
var k = 0;
for (int j = (await bar(0)), i = (await bar(1));
j < (await bar(5));
j = (await asyncInc(j)), i = (await asyncInc(i))) {
k += i;
k += j;
}
return k;
}
awaitForIn() async {
var list = ['a', 'b', 'c'];
var k = '';
for (var c in (await bar(list))) {
k += c;
}
return k;
}
test() async {
var result;
for (int i = 0; i < 10; i++) {
result = await foo();
Expect.equals(30, result);
result = await faa();
Expect.equals(3, result);
result = await quaz(17);
Expect.equals(17, result);
result = await quazz();
Expect.equals(2, result);
result = await nesting();
Expect.equals(5, result);
result = await awaitIf(3);
Expect.equals("p<5", result);
result = await awaitIf(5);
Expect.equals("p>=5", result);
result = await awaitNestedIf(5, 3);
Expect.equals("q<7", result);
result = await awaitNestedIf(5, 8);
Expect.equals("q>=7", result);
result = await awaitNestedIf(3, 8);
Expect.equals("p!=5", result);
result = await awaitReturn();
Expect.equals(17, result);
result = await awaitSwitch();
Expect.equals(3, result);
result = await awaitElseIf(6);
Expect.equals("p>5", result);
result = await awaitElseIf(4);
Expect.equals("p<5", result);
result = await awaitElseIf(5);
Expect.equals("p==5", result);
result = await awaitNestedWhile(5, 3);
Expect.equals(15, result);
result = await awaitNestedWhile(4, 6);
Expect.equals(24, result);
result = await awaitAsUnary(bar(1), bar(2));
Expect.equals(3, result);
result = await awaitFor();
Expect.equals(25, result);
result = await awaitForIn();
Expect.equals('abc', result);
}
}
main() {
asyncStart();
test().then((_) {
asyncEnd();
});
}