Created
January 28, 2012 00:28
-
-
Save kriskowal/1691779 to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| function foo() { | |
| bar({|x| | |
| return 10; | |
| }); | |
| } | |
| function bar(block) { | |
| block(); | |
| block(); // we should never get here. how? | |
| } | |
| foo(); |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| 10 foo(); // stack: [] | |
| 2 bar({|x| return 10}) // stack: [foo] | |
| 7 block() // stack: [foo, bar] | |
| 3 return 10 // stack: [foo, bar, block] | |
| … |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
@dherman I think that
finallywill have to suffice. It would be an information/capability leak for an intermediate stack frame to be able to observe the return value in a parent lexical scope. MarkM would kill me for suggesting it.