This is horrendous code, especially the last example. Looks like PHP or
JavaScript, which I hate because their code is hard to read. I'm using pascal
because I like its clean and easy-to-read syntax.
"-1" is a statement that should give a compiler error. "Result" and "Exit(x)"
are established constructs and I don't see any need for changing, or even
worse: omitting, them.
What should the data type of "left, right" be?
What should "@" mean?
----- Original Message -----
From: Benito van der Zander via fpc-pascal <fpc-pascal@lists.freepascal.org>
To: fpc-pascal@lists.freepascal.org <fpc-pascal@lists.freepascal.org>
Sent: Saturday, May 28, 2022, 14:04:46
Subject: [fpc-pascal] Feature Announcement: Function References and Anonymous
Functions
Hi,
> Sort((left, right) begin
> if left < right then
> result := -1
> else if left > right then
> result := 1
> else
> result := 0;
> end);
One could introduce the @ operator to get a reference to a block of code.
Sort( @(left, right) begin
if left < right then
result := -1
else if left > right then
result := 1
else
result := 0;
end);
The "result" variable is also ugly. You could make "if" an expression:
Sort( @(left, right) begin
result :=
if left < right then -1
else if left > right then 1
else 0;
end);
Then the begin end could be removed too. Make @:= an operator to turn an
expression to a function
Sort( @(left, right) :=
if left < right then -1
else if left > right then 1
else 0;
);
Benito
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