Updated from some -dev modules to alpha, beta or full releases

[yaffs-website] / vendor / psy / psysh / src / ExecutionLoopClosure.php

diff --git a/vendor/psy/psysh/src/ExecutionLoopClosure.php b/vendor/psy/psysh/src/ExecutionLoopClosure.php
new file mode 100644 (file)
index 0000000..e34848e
--- /dev/null
+++ b/vendor/psy/psysh/src/ExecutionLoopClosure.php
@@ -0,0 +1,99 @@
+<?php
+
+/*
+ * This file is part of Psy Shell.
+ *
+ * (c) 2012-2018 Justin Hileman
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Psy;
+
+use Psy\Exception\BreakException;
+use Psy\Exception\ErrorException;
+use Psy\Exception\ThrowUpException;
+use Psy\Exception\TypeErrorException;
+
+/**
+ * The Psy Shell's execution loop scope.
+ *
+ * @todo Once we're on PHP 5.5, we can switch ExecutionClosure to a generator
+ * and get rid of the duplicate closure implementations :)
+ */
+class ExecutionLoopClosure extends ExecutionClosure
+{
+    /**
+     * @param Shell $__psysh__
+     */
+    public function __construct(Shell $__psysh__)
+    {
+        $this->setClosure($__psysh__, function () use ($__psysh__) {
+            // Restore execution scope variables
+            extract($__psysh__->getScopeVariables(false));
+
+            do {
+                $__psysh__->beforeLoop();
+
+                try {
+                    $__psysh__->getInput();
+
+                    try {
+                        // Buffer stdout; we'll need it later
+                        ob_start([$__psysh__, 'writeStdout'], 1);
+
+                        // Convert all errors to exceptions
+                        set_error_handler([$__psysh__, 'handleError']);
+
+                        // Evaluate the current code buffer
+                        $_ = eval($__psysh__->onExecute($__psysh__->flushCode() ?: ExecutionClosure::NOOP_INPUT));
+                    } catch (\Throwable $_e) {
+                        // Clean up on our way out.
+                        restore_error_handler();
+                        if (ob_get_level() > 0) {
+                            ob_end_clean();
+                        }
+
+                        throw $_e;
+                    } catch (\Exception $_e) {
+                        // Clean up on our way out.
+                        restore_error_handler();
+                        if (ob_get_level() > 0) {
+                            ob_end_clean();
+                        }
+
+                        throw $_e;
+                    }
+
+                    // Won't be needing this anymore
+                    restore_error_handler();
+
+                    // Flush stdout (write to shell output, plus save to magic variable)
+                    ob_end_flush();
+
+                    // Save execution scope variables for next time
+                    $__psysh__->setScopeVariables(get_defined_vars());
+
+                    $__psysh__->writeReturnValue($_);
+                } catch (BreakException $_e) {
+                    $__psysh__->writeException($_e);
+
+                    return;
+                } catch (ThrowUpException $_e) {
+                    $__psysh__->writeException($_e);
+
+                    throw $_e;
+                } catch (\TypeError $_e) {
+                    $__psysh__->writeException(TypeErrorException::fromTypeError($_e));
+                } catch (\Error $_e) {
+                    $__psysh__->writeException(ErrorException::fromError($_e));
+                } catch (\Exception $_e) {
+                    $__psysh__->writeException($_e);
+                }
+
+                $__psysh__->afterLoop();
+            } while (true);
+        });
+    }
+}