Lets say a script has 'use A;' Below is the defn of module A

package A;

use strict;

our (@ISA,@EXPORT);


require Exporter;
@ISA = qw(Exporter);
@EXPORT = qw(
        abc
        );

#................
# Some code here
#................

1;
[download]

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While 'use' is compile-time loading, 'require' has run-time loading. but the 'import()' function is provided by the Exporter in run-time itself. So what is the thing which 'use A;' loads in at compile time ? as it does not have the import() method yet so it cannot load in the modules. Can anybod explain me what exactly is going on here ?