Mike Magruder
96d6bab291
There were multiple issues with flow control when exceptions occur. Fixed these by ditching the reliance on the exception thrown interrupt and introduce an exception handler interrupt, which indicates control is about to pass to a catch clause. This gives us much better insight into how execution is flowing and how we might need to adjust an in-flight stepping operation.
65 linhas
1.1 KiB
PHP
65 linhas
1.1 KiB
PHP
<?php
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// Copyright 2004-present Facebook. All Rights Reserved.
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// Test flow control around exceptions. Stepping into/over/out of throws,
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// catches, stepping over calls that have throw/catch within, etc.
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class Ex1 extends Exception {
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}
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class Ex2 extends Exception {
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}
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function throwAndCatch($a) {
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$x = $a + 1;
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try {
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throw new Ex2('Thrown from throwAndCatch '.$x);
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} catch (Ex2 $e) {
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printf("Caught %s in throwAndCatch()\n", $e->getMessage());
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$x++;
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}
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return $x;
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}
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function throwNoCatch($a) {
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$x = $a + 1;
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$e = new Ex1('Thrown from throwNoCatch '.$x);
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throw $e;
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}
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function throwFromCallee($a) {
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$x = $a + 1;
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try {
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throwNoCatch($x);
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} catch (Ex1 $e) {
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printf("Caught %s in throwFromCallee()\n", $e->getMessage());
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$x++;
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}
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return $x;
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}
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function foo($a) {
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$x = $a + 1;
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$x = throwAndCatch($x);
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try {
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$x = throwAndCatch($x);
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throw new Ex1('Thrown from foo '.$x);
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} catch (Exception $e) {
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printf("Caught %s in foo()\n", $e->getMessage());
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$x = throwAndCatch($x);
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$x++;
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}
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return $x;
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}
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function main() {
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$x = throwFromCallee(1);
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var_dump($x);
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$x = foo(2);
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var_dump($x);
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}
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main();
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