v8/test/mjsunit/compiler/try-context.js
mstarzinger d60c6bdf2e Add test for exception handler context switch.
This adds test cases for exception handlers that require a context
switch when entering the catch-block or the finally-block, triggered
through nested contexts within the try-block.

R=jarin@chromium.org

Review URL: https://codereview.chromium.org/1681933002

Cr-Commit-Position: refs/heads/master@{#33845}
2016-02-09 12:31:45 +00:00

90 lines
1.8 KiB
JavaScript

// Copyright 2016 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax
(function TryBlockCatch() {
var global = 0;
function f(a) {
var x = a + 23
try {
let y = a + 42;
function capture() { return x + y }
throw "boom!";
} catch(e) {
global = x;
}
return x;
}
assertEquals(23, f(0));
assertEquals(24, f(1));
%OptimizeFunctionOnNextCall(f);
assertEquals(25, f(2));
assertEquals(25, global);
})();
(function TryBlockFinally() {
var global = 0;
function f(a) {
var x = a + 23
try {
let y = a + 42;
function capture() { return x + y }
throw "boom!";
} finally {
global = x;
}
return x;
}
assertThrows(function() { f(0) });
assertThrows(function() { f(1) });
%OptimizeFunctionOnNextCall(f);
assertThrows(function() { f(2) });
assertEquals(25, global);
})();
(function TryCatchCatch() {
var global = 0;
function f(a) {
var x = a + 23
try {
try {
throw "boom!";
} catch(e2) {
function capture() { return x + y }
throw "boom!";
}
} catch(e) {
global = x;
}
return x;
}
assertEquals(23, f(0));
assertEquals(24, f(1));
%OptimizeFunctionOnNextCall(f);
assertEquals(25, f(2));
assertEquals(25, global);
})();
(function TryWithCatch() {
var global = 0;
function f(a) {
var x = a + 23
try {
with ({ y : a + 42 }) {
function capture() { return x + y }
throw "boom!";
}
} catch(e) {
global = x;
}
return x;
}
assertEquals(23, f(0));
assertEquals(24, f(1));
%OptimizeFunctionOnNextCall(f);
assertEquals(25, f(2));
assertEquals(25, global);
})();