Ruby has `if`, `switch` and `while` expressions.
next = if cur.val < val
cur.right
else
cur.left
end
Union type is not necessary, because there could be restriction forcing all
branches to have same type.
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On Sat, Dec 22, 2018 at 8:05 PM Viktor Kojouharov
wrote:
> Curiously, Java 12 will also support switch expressions, and java is about
> as non-expressive as it gets.
>
What makes you say that? Java is as much of an expression language as C. In
particular, assignments are expressions, which I thi
Inline functions can meet this need, though there's usually a better way:
v := func() T { if b { return v1 } return v2 }()
On Sat, Dec 22, 2018 at 2:05 PM Viktor Kojouharov
wrote:
> I've used kotlin extensively, where ifs and switches are expressions. I've
> also seen rust support them. Curiously
I've used kotlin extensively, where ifs and switches are expressions. I've
also seen rust support them. Curiously, Java 12 will also support switch
expressions, and java is about as non-expressive as it gets.
On Wednesday, December 19, 2018 at 11:39:32 PM UTC+2, Tyler Compton wrote:
>
> There is
It seems to me that what he was railing against was the design-by-committee
approach? Having never studied Algol68 it's hard to say but skimming the
wiki page parts of it could be transposed directly into one about Go so I'm
not sure the DNA is totally gone, just we're lucky to avoid the commit
It is always good to be reading Dijkstra. He was a treasure. His
observations were those of the computing world, and combined with IBM’s
dominance and desire behind PL/1, created the dead zone from which C saved
us all.
Unfortunately the good of these dead ends was lost, and the good of Algol68
wa
Happened to be randomly rereading through the EWD archives and came upon
this simultaneously with reading this thread:
http://www.cs.utexas.edu/users/EWD/transcriptions/EWD02xx/EWD230.html
(no comment!)
Jamie
On Friday, December 21, 2018 at 7:57:07 AM UTC, Tom Mitchell wrote:
>
>
> On Thu, Dec
On Thu, Dec 20, 2018 at 2:48 PM Michael Jones
wrote:
> interesting! i wish algol 68 had had its chance.
>
Well, "It ain't over till it is over."
http://algol68.sourceforge.net/
" multiple licenses that should be read carefully: it is open source
software, but not all components are fully f
interesting! i wish algol 68 had had its chance.
On Thu, Dec 20, 2018 at 2:40 PM Bakul Shah wrote:
> On Thu, 20 Dec 2018 13:13:04 -0800 Michael Jones
> wrote:
> >
> > There is an inelegant but highly effective "hack" in GCC/G++ in thuas
> area.
> > Since C/C++ are expression language as Rob put
On Thu, 20 Dec 2018 13:13:04 -0800 Michael Jones
wrote:
>
> There is an inelegant but highly effective "hack" in GCC/G++ in thuas area.
> Since C/C++ are expression language as Rob put it (e.g. a statement like
> "3" compiles where in Go it fails with "3 evaluated but not used") GCC took
> this a
There is an inelegant but highly effective "hack" in GCC/G++ in thuas area.
Since C/C++ are expression language as Rob put it (e.g. a statement like
"3" compiles where in Go it fails with "3 evaluated but not used") GCC took
this a step further and implemented that the last expression evaluated in
On Wed, Dec 19, 2018 at 9:16 PM Jan Mercl <0xj...@gmail.com> wrote:
>> On Wed, Dec 19, 2018 at 9:09 PM Viktor Kojouharov
wrote:
>>
>> I'm interested to know whether it was considered (I can't imagine that
it wasn't) for if and switch statements to be expressions instead
>
> I can't imagine it was
BCPL had a construct like this, and we did consider doing something
analogous, but in the end Go is not an expression language. C and BCPL are,
and that property does lead to problems, although they are probably
avoidable with careful language design.
But Go is not an expression language, so contr
There is some precedent. Python has an if expression of sorts that is
distinct from its if statements:
print(value1 if condition else value2)
And in all Lisp dialects I'm familiar with, if is an expression:
(print (if condition value1 value2))
Not to say that this means Go should support it nec
On Wed, Dec 19, 2018 at 12:09 PM Viktor Kojouharov
wrote:
>
> I've tried and failed at finding any previous discussion on this topic, so do
> point me to one if it exists.
>
> I'm interested to know whether it was considered (I can't imagine that it
> wasn't) for if and switch statements to be e
On Wed, Dec 19, 2018 at 9:09 PM Viktor Kojouharov
wrote:
> I'm interested to know whether it was considered (I can't imagine that it
wasn't) for if and switch statements to be expressions instead
I can't imagine it was considered. Is there a precedence in other language?
Not even C supports tha
Hello,
I've tried and failed at finding any previous discussion on this topic, so
do point me to one if it exists.
I'm interested to know whether it was considered (I can't imagine that it
wasn't) for if and switch statements to be expressions instead, and if so,
why were they ultimately left
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