Yuki Kimoto's Perl Blog

I release SPVM.

SPVM

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SPVM - Fast calculation, GC, static typing, VM with perlish syntax
SPVM(CPAN)

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Do you know that there are many criticisms against Perl 5 on the Perl 11 blog?

Much of the criticism is about Perl's data structure and performance.

"Perl does not have a good data structure and implementation regarding numbers."

"Perl can not calculate a number using the stack of functions."

"Understanding about virtual machines is lacking in p5p."

I am an engineer who loves Perl 5 and p5p and is using Perl 5 to create a company service.

I want to contribute to reducing the weaknesses of Perl 5, by making modules.

I hope the SPVM will be of help.

Features

Do you need faster Perl? SPVM provides fast calculation to Perl.

• Fast calculation - The Perl's biggest weak point is the calculation performance. SPVM provides fast calculations.
• GC - You don't need to care about freeing memory
• Static typing - Static typing for performance
• VM - Byte codes are generated so that you can run them on SPVM language
• Perlish syntax - SPVM syntax is very similar to Perl
• Perl module - SPVM function can be called from Perl itself.

Example

use FindBin;
use lib "$FindBin::Bin/lib";
 
use SPVM 'MyModule2';
 
my $total = SPVM::MyModule2::foo(SPVM::int(3), SPVM::int(5));
print $total->value . "\n";

The following is SPVM module files. Extention is "spvm".

# lib/SPVM/MyModule1.spvm
package MyModule1 {
  has x : int;
  has y : int;
   
  sub sum ($a : int, $b : int) : int {
     
    my $total = $a + $b;
     
    return $total;
  }
}
 
# lib/SPVM/MyModule2.spvm
use MyModule1;
package MyModule2 {
   
  sub foo ($a : int, $b : int) : int {
     
    my $total = ($a * $b) + MyModule1::sum(2, 4);
     
    return $total;
  }
}