Mercurial > cpython-lru_cache-weakref

annotate Mac/PythonLauncher/MyAppDelegate.m @ 87690:66c1c9f32567 default tip

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Add use_weakref option to functools.lru_cache The use_weakref option makes lru_cache create weak references to the function arguments when creating the cache key, which prevents them from staying in the memory forever even after all other references to them are gone. This is a proof of concept for http://bugs.python.org/issue19859
author Radomir Dopieralski <devel@sheep.art.pl>
date Tue, 03 Dec 2013 16:02:48 +0100
parents 738cba2bf849
children
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rev   line source
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1 #import "MyAppDelegate.h"
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2 #import "PreferencesWindowController.h"
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3 #import <Carbon/Carbon.h>
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4 #import <ApplicationServices/ApplicationServices.h>
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5
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6 @implementation MyAppDelegate
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7
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8 - (id)init
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9 {
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10 self = [super init];
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11 initial_action_done = NO;
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12 should_terminate = NO;
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13 return self;
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14 }
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15
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16 - (IBAction)showPreferences:(id)sender
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17 {
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18 [PreferencesWindowController getPreferencesWindow];
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19 }
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20
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21 - (void)applicationDidFinishLaunching:(NSNotification *)notification
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22 {
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23 // Test that the file mappings are correct
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24 [self testFileTypeBinding];
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25 // If we were opened because of a file drag or doubleclick
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26 // we've set initial_action_done in shouldShowUI
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27 // Otherwise we open a preferences dialog.
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28 if (!initial_action_done) {
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29 initial_action_done = YES;
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30 [self showPreferences: self];
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31 }
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32 }
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33
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34 - (BOOL)shouldShowUI
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35 {
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36 // if this call comes before applicationDidFinishLaunching: we
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37 // should terminate immedeately after starting the script.
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38 if (!initial_action_done)
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39 should_terminate = YES;
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40 initial_action_done = YES;
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41 if( GetCurrentKeyModifiers() & optionKey )
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42 return YES;
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43 return NO;
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44 }
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45
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46 - (BOOL)shouldTerminate
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47 {
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48 return should_terminate;
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49 }
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50
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51 - (BOOL)applicationShouldOpenUntitledFile:(NSApplication *)sender
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52 {
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53 return NO;
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54 }
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55
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56 - (void)testFileTypeBinding
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57 {
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58 NSURL *ourUrl;
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59 OSStatus err;
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60 FSRef appRef;
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61 NSURL *appUrl;
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62 static NSString *extensions[] = { @"py", @"pyw", @"pyc", NULL};
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63 NSString **ext_p;
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64 int i;
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65
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66 if ([[NSUserDefaults standardUserDefaults] boolForKey: @"SkipFileBindingTest"])
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67 return;
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68 ourUrl = [NSURL fileURLWithPath: [[NSBundle mainBundle] bundlePath]];
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69 for( ext_p = extensions; *ext_p; ext_p++ ) {
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70 err = LSGetApplicationForInfo(
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71 kLSUnknownType,
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72 kLSUnknownCreator,
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73 (CFStringRef)*ext_p,
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74 kLSRolesViewer,
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75 &appRef,
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76 (CFURLRef *)&appUrl);
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77 if (err || ![appUrl isEqual: ourUrl] ) {
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78 i = NSRunAlertPanel(@"File type binding",
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79 @"PythonLauncher is not the default application for all " \
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80 @"Python script types. You should fix this with the " \
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81 @"Finder's \"Get Info\" command.\n\n" \
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82 @"See \"Changing the application that opens a file\" in " \
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83 @"Mac Help for details.",
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84 @"OK",
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85 @"Don't show this warning again",
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86 NULL);
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87 if ( i == 0 ) { // Don't show again
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88 [[NSUserDefaults standardUserDefaults]
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89 setObject:@"YES" forKey:@"SkipFileBindingTest"];
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90 }
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91 return;
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92 }
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93 }
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94 }
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95
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96 @end