{"id":2112,"date":"2009-11-28T18:46:50","date_gmt":"2009-11-28T22:46:50","guid":{"rendered":"http:\/\/mjtsai.com\/blog\/?p=2112"},"modified":"2014-04-15T20:27:42","modified_gmt":"2014-04-16T00:27:42","slug":"nserror-is-hard","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2009\/11\/28\/nserror-is-hard\/","title":{"rendered":"NSError** Is Hard"},"content":{"rendered":"<p><a href=\"http:\/\/rentzsch.tumblr.com\/post\/260201639\/nserror-is-hard\">Bill Bumgarner<\/a> highlights a non-intuitive part of the <a href=\"http:\/\/developer.apple.com\/mac\/library\/documentation\/cocoa\/Conceptual\/ErrorHandlingCocoa\/CreateCustomizeNSError\/CreateCustomizeNSError.html#\/\/apple_ref\/doc\/uid\/TP40001806-CH204-SW2\"><code>NSError<\/code> contract<\/a>: it&rsquo;s not safe to look at an error object unless the method returned failure.<\/p>","protected":false},"excerpt":{"rendered":"<p>Bill Bumgarner highlights a non-intuitive part of the NSError contract: it&rsquo;s not safe to look at an error object unless the method returned failure.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"","apple_news_api_id":"","apple_news_api_modified_at":"","apple_news_api_revision":"","apple_news_api_share_url":"","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[4],"tags":[69,857,54,71],"class_list":["post-2112","post","type-post","status-publish","format-standard","hentry","category-programming-category","tag-cocoa","tag-nserror","tag-objective-c","tag-programming"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/2112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=2112"}],"version-history":[{"count":2,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/2112\/revisions"}],"predecessor-version":[{"id":8702,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/2112\/revisions\/8702"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=2112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=2112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=2112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}