Developers cannot live without it.
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That's a very wise decision. Lua is a meta-language. Any meta-language MUST provide goto - otherwise implementing higher level constructs could be too complicated.
:confused: Are you joking? :-D
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles] -
:confused: Are you joking? :-D
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]No, I'm 100% serious. A typical example: implementing a high-level eDSL for, say, generating a Packrat parser out of the PEG grammar. The most straghtforward translation scheme will involve making a function for each terminal, with a single "failure" label at the end, and all the failed sub-expressions will just goto there. But for a target language without a goto, a compilation scheme would be significantly more complicated.
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No, I'm 100% serious. A typical example: implementing a high-level eDSL for, say, generating a Packrat parser out of the PEG grammar. The most straghtforward translation scheme will involve making a function for each terminal, with a single "failure" label at the end, and all the failed sub-expressions will just goto there. But for a target language without a goto, a compilation scheme would be significantly more complicated.
That's just a 'lack of goto' problem. I cannot understand why you define Lua 'meta-language'. Furthermore, in my opinion, it is a complete (and fairly powerful) language.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles] -
The
gotostatement! Freshly released Lua 5.2[^] provides it. :rolleyes:If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]In BBC BASIC "On Error Off" is used to turn off any error trapping. In Visual Basic "On Error Goto 0" is used to turn off error trapping. But it doesn't go to line zero when an error occur it displays a message and exits the program. So the GOTO command survives but doesn't go to the line you asked it to goto.
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The
gotostatement! Freshly released Lua 5.2[^] provides it. :rolleyes:If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]On Error Go To Bed :)
It's an OO world.
public class Naerling : Lazy<Person>{
public void DoWork(){ throw new NotImplementedException(); }
} -
On Error Go To Bed :)
It's an OO world.
public class Naerling : Lazy<Person>{
public void DoWork(){ throw new NotImplementedException(); }
}public class Naerling : Person{
public void DoWork(){ throw Unknown(); }
}FFY. :)
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles] -
public class Naerling : Person{
public void DoWork(){ throw Unknown(); }
}FFY. :)
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]Unknown is no function or property I implement. Though I am lazy I still want to compile ;)
It's an OO world.
public class Naerling : Lazy<Person>{
public void DoWork(){ throw new NotImplementedException(); }
} -
The
gotostatement! Freshly released Lua 5.2[^] provides it. :rolleyes:If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]It's not unlike the double-negative in English -- it's only bad when you use it wrongly.
I wanna be a eunuchs developer! Pass me a bread knife!
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It's not unlike the double-negative in English -- it's only bad when you use it wrongly.
I wanna be a eunuchs developer! Pass me a bread knife!
You may say the same for (say) threads, still... :)
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles] -
That's just a 'lack of goto' problem. I cannot understand why you define Lua 'meta-language'. Furthermore, in my opinion, it is a complete (and fairly powerful) language.
If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler. -- Alfonso the Wise, 13th Century King of Castile.
This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong. -- Iain Clarke
[My articles]- There is an eval - so, it is a meta-language, at least to the same extend as JavaScript 2) I use http://metalua.luaforge.net/[^] which is a "true" meta-language It is very powerful indeed. But the languages lacking the goto statement are not very good compilation targets.
