exception.rbs in steep-0.15.0

- old
+ new

@@ -122,11 +122,11 @@
 # 
 #   - fatal – impossible to rescue
 class Exception < Object
   def self.to_tty?: () -> bool
 
-  def self.exception: (?String msg) -> self
+  def self.exception: (?String msg) -> Exception
 
   def ==: (untyped arg0) -> bool
 
   # Returns any backtrace associated with the exception. The backtrace is an
   # array of strings, each containing either “filename:lineNo: in \`method”‘
@@ -170,10 +170,11 @@
   # Returns the previous exception ($\!) at the time this exception was
   # raised. This is useful for wrapping exceptions and retaining the
   # original exception information.
   def cause: () -> Exception?
 
-  def exception: (?String arg0) -> Exception
+  def exception: () -> self
+               | (String arg0) -> Exception
 
   def initialize: (?String arg0) -> void
 
   # Return this exception’s class name and message.
   def inspect: () -> String