If we execute the above code we will print out the message as well as the stack trace of the exception we rescued which are provided by the exception object itself. You can also do the same thing with a generalrescueclause: ruby begin raise "Hello I am a random runtime error" rescue ...
set_trace_func(trace_proc) 1. 在Ruby解释器执行程序的过程中,每当发生方法调用或对表达式进行计算等事件时都将执行trace_proc过程对象。、以及等标准附件就是使用该内部函数来实现的。 例: set_trace_func lambda {|event, file, line, id, binding, klass| # ... } 1. 2. 3. 块参数的意义如下。 eve...
若将非异常的类或对象赋予第一参数时,实际上发生的异常正是该对象的exception方法的返回值。 class MyException def exception ArgumentError.new end end raise MyException.new # => -:7: ArgumentError (ArgumentError) 若采用第二种形式来指定参数时,该参数将被赋予exception方法。 class MyException def exception...
set keep-frame-bindings # Save frame binding on each call set linetrace+ # Set line execution tracing to show different lines set linetrace # Set line execution tracing set listsize # Set number of source lines to list by default set trace # Display stack trace when 'eval' raises excepti...
Exception Handling Iterators and Closures Garbage Collection Dynamic Loading of Object Files (on some architectures) Highly Portable (works on many Unix-like/POSIX compatible platforms as well as Windows, macOS, etc.) cf. https://docs.ruby-lang.org/en/master/maintainers_md.html#label-Platform+Ma...
show trace # Show if a stack trace is displayed when 'eval' raises exception show version # 显示debug版本号 show width # 显示调试信息的行字数 19. condition Condition breakpoint-number expression 给特定的brakepoint添加,执行条件.如果,expression为空,那么断点执行的约束,取消 ...
Crepe- The thin API stack. Grape- An opinionated micro-framework for creating REST-like APIs in Ruby. Her- an ORM that maps REST resources to Ruby objects. Designed to build applications that are powered by a RESTful API instead of a database. ...
字符串分割成数组： 可以使用先scan再join的方法，当然其实有更好的 split方法，专门用来分割字符串 ...
Receive the mocked response when calling a method Closes the channel, allowing the client to exit What did you see instead? Make sure you include information that can help us debug (full error message, exception listing, stack trace, logs). ...
/usr/local/lib/ruby/2.7.0/rubygems.rb:275:in `find_spec_for_exe': can't find gem rake (>= 0.a) with executable rake (Gem::GemNotFoundException) from /usr/local/lib/ruby/2.7.0/rubygems.rb:294:in `activate_bin_path' from /lobsters/.gem/ruby/2.7.0/bin/rake:23:in `<main>'...