polserver/testsuite/escript/classes/test.src

class BaseClass()
  function BaseClass( this )
  endfunction
endclass

class Animal( BaseClass )

  var staticVar := Print( 1 + 2 ) ?: "value for static after printing";

  function Animal( this, name )
    this.name := name;
    print( $"Animal constructor staticVar={staticVar}" );
    return; // can have empty returns
  endfunction

endclass

// Compile-time constructor call. Creates a class instance, and attachs vtable
var compile_obj := Animal( "compile-time ctor call" );
print( $"compile_obj={compile_obj}" );

// Run-time constructor call. Does not attach vtable in this scenario, but calls the user function
var runtime_obj := dictionary{};
@Animal( runtime_obj, "runtime ctor call" );
print( $"runtime_obj={runtime_obj}" );

print( $"Global scope staticVar={Animal::staticVar}" );