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Bug #11228
closed
Classes Cannot be used in case Statements
Bug #11228: Classes Cannot be used in case Statements
Status:
Rejected
Assignee:
-
Target version:
-
ruby -v:
ruby 2.2.2p95 (2015-04-13 revision 50295) [x86_64-linux]
Description
#!/usr/bin/env ruby def flaw_demo cl_selector="A String instance".class case cl_selector when String puts "flaw_demo: This is, where the control flow should be." when Regexp puts "flaw_demo: Hi Regexp!" else puts "flaw_demo: The control flow should not reach this line." end # case end ; flaw_demo() CONST_1=42 CONST_2=99 def works_ok i_selector=42 case i_selector when CONST_1 puts " works_ok: This is, where the control flow should be." when CONST_2 puts " works_ok: Hi CONST_2!" else puts " works_ok: The control flow should not reach this line." end # case end ; works_ok() # Console output: # flaw_demo: The control flow should not reach this line. # works_ok: This is, where the control flow should be. Files
Updated by marcandre (Marc-Andre Lafortune) over 10 years ago
- Status changed from Open to Rejected
This is per spec, please check the definition of Class#===, since a switch is sugar for calls to ===.
String === String # => false Updated by marcandre (Marc-Andre Lafortune) over 10 years ago
PS: The definition of Class#=== allows you to write
case "A String instance" when String puts "flaw_demo: This is, where the control flow should be." when Regexp puts "flaw_demo: Hi Regexp!" else puts "flaw_demo: The control flow should not reach this line." end # case # => flaw_demo: This is, where the control flow should be. Actions