Migrate APL plug-in to use ARC.

Plugins/APL/APL.xcodeproj/project.pbxproj

@@ -186,6 +186,7 @@
 		1DEB913F08733D840010E9CD /* Debug */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				CLANG_ENABLE_OBJC_ARC = YES;
 				GCC_PREPROCESSOR_DEFINITIONS = "DEBUG=1";
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;
 				GCC_WARN_UNUSED_VARIABLE = YES;
@@ -200,6 +201,7 @@
 		1DEB914008733D840010E9CD /* Release */ = {
 			isa = XCBuildConfiguration;
 			buildSettings = {
+				CLANG_ENABLE_OBJC_ARC = YES;
 				CODE_SIGN_IDENTITY = "Developer ID Application";
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				GCC_WARN_ABOUT_RETURN_TYPE = YES;

Plugins/APL/APLDecoder.m

@@ -22,7 +22,7 @@
 	
 	//Need to alter length
 	[properties setObject:[NSNumber numberWithLong:trackLength] forKey:@"totalFrames"];
-	return [properties autorelease];
+	return properties;
 }
 
 - (BOOL)open:(id<CogSource>)s
@@ -35,18 +35,15 @@
 	[s close];
 	
 	apl = [APLFile createWithFile:[url path]];
-	[apl retain];
 	
 	//Kind of a hackish way of accessing outside classes.
 	source = [NSClassFromString(@"AudioSource") audioSourceForURL:[apl file]];
-	[source retain];
 	
 	if (![source open:[apl file]]) {
 		ALog(@"Could not open source for file '%@' referenced in apl", [apl file]);
 		return NO;
 	}
 	decoder = [NSClassFromString(@"AudioDecoder") audioDecoderForSource:source];
-	[decoder retain];
 	
 	if (![decoder open:source]) {
 		ALog(@"Could not open decoder for source for apl");
@@ -80,18 +77,11 @@
 - (void)close {
 	if (decoder) {
 		[decoder close];
-		[decoder release];
 		decoder = nil;
 	}
 	
-	if (source) {
-		[source release];
-		source = nil;
-	}
-	if (apl) {
-		[apl release];
-		apl = nil;
-	}
+    source = nil;
+    apl = nil;
 }
 
 

Plugins/APL/APLFile.m

@@ -39,7 +39,6 @@
 		[unixPath insertString:basePath atIndex:0];
 		}
 	NSURL *url = [NSURL URLWithString:[[NSURL fileURLWithPath:unixPath] absoluteString]];
-	[unixPath release];
 	return url;
 }
 
@@ -59,7 +58,7 @@
 			ALog(@"Cannot read header");
 			return nil;
 		}
-		NSString* str = [[[NSString alloc] autorelease] initWithData:da encoding: NSASCIIStringEncoding];	
+		NSString* str = [[NSString alloc] initWithData:da encoding: NSASCIIStringEncoding];
 		if([str compare:header options:NSCaseInsensitiveSearch]) {
 			ALog(@"APL header mismatch");
 			return nil;
@@ -71,7 +70,6 @@
 		while((line = [self readline:f])) {
 			if (![line compare:@"----- APE TAG (DO NOT TOUCH!!!) -----\r\n" options:NSCaseInsensitiveSearch]) break;
 			if([line characterAtIndex:0] == '-') break;
-			[scanner release];
 			scanner = [[NSScanner alloc] initWithString:line];
 			NSString* field = nil, *value = nil;
 			if (![scanner scanUpToString:@"=" intoString:&field]) continue;
@@ -79,7 +77,6 @@
 			if (![scanner scanUpToString:@"\r\n" intoString:&value]) continue;
 			if (![field compare:@"Image File" options:NSCaseInsensitiveSearch])
 			{
-				[file release];
 				file = [self urlForPath:value relativeTo:filename];
 				DLog(@"APL refers to file '%@' read '%@'", file, value);
 				continue;
@@ -97,7 +94,6 @@
 				continue;
 			}
 		}
-		[scanner release];
 		//check here for EOF? cocoa does not have this functionality :(
 		[f closeFile];
 		}