From: Uri Guttman <uri@cpan.org>
Date: Fri, 19 Dec 2008 05:53:19 +0000 (-0500)
Subject: hand edited concat (current compiler generated code) to benchmark with
X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?p=urisagit%2FTemplate-Simple.git;a=commitdiff_plain;h=50126214fc07365a66832a163c334c6980c6148e

hand edited concat (current compiler generated code) to benchmark with
joined, and then append to sub var styles.

append is the fastest for sure.
---

diff --git a/bench.pl b/bench.pl
index 2583947..c8b289f 100644
--- a/bench.pl
+++ b/bench.pl
@@ -4,61 +4,158 @@ use strict ;
 use warnings ;
 
 use Template::Simple ;
+use Benchmark qw( timethese ) ;
 use Data::Dumper ;
 
-my $data = generate_data( 3, 6 ) ;
+my @dims = @ARGV ? @ARGV : ( 3, 6 ) ;
+
+my $data = generate_data( @dims ) ;
 #print Dumper $data ;
 
 my $tmpl = Template::Simple->new() ;
 
-$tmpl->add_templates( { bench => <<TMPL } ) ;
+my $template = <<TMPL ;
 Header
 Val 1: [%val_1%]
-Val 2: [%val_2%]
-Footer
-TMPL
-
-my $x = <<XXX ;
 [%START nest%]
 	Level: [%level%]
 [%END nest%]
 [%START opt%]
 	Optional Level: [%level%]
 [%END opt%]
-XXX
+Val 2: [%val_2%]
+Footer
+TMPL
 
+$tmpl->add_templates( { bench => $template } ) ;
 
+my $x = <<XXX ;
+XXX
 
 my $rendered = $tmpl->render( 'bench', $data ) ;
 
-$tmpl->compile( 'bench', $data ) ;
-print $tmpl->get_source( 'bench' ) ;
+#$tmpl->compile( 'bench', $data ) ;
+#print $tmpl->get_source( 'bench' ) ;
+#my $comp_rendered = $tmpl->render( 'bench', $data ) ;
+#my $ok = $$rendered eq $$comp_rendered ;
 
-my $comp_rendered = $tmpl->render( 'bench', $data ) ;
+my $joined = joined( $data ) ;
+my $appended = joined( $data ) ;
 
-my $ok = $$rendered eq $$comp_rendered ;
+my $ok = $$rendered eq $$appended ;
 
 print "OK [$ok]\n" ;
 
-print $$rendered ;
-print $$comp_rendered ;
+# print $$rendered ;
+# print "----\n" ;
+# print $$joined ;
+#print $$comp_rendered ;
+
+timethese( shift || -2,
+	{
+		render	=> sub { my $x = $tmpl->render( 'bench', $data ) },
+		joined	=> sub { my $x = joined( $data ) },
+		concat	=> sub { my $x = concat( $data ) },
+		append	=> sub { my $x = append( $data ) },
+	}
+) ;
 
 exit ;
 
+no warnings ;
+
+
+sub rendered {
 
+}
 
+sub joined {
 
 no warnings ;
 
+	my( $data ) = @_ ;
 
-sub rendered {
+	my $out = do {
+		my $out ;
 
-}
+		my @data = $data ;
+		while( defined( my $data = shift @data ) ) {
+
+			if ( ref $data eq 'ARRAY' ) {
+				push @data, @{$data} ;
+				next ;
+			}
+
+			$out .= ref $data ne 'HASH' ? $data :
+
+			join( '',
+			"Header\nVal 1: "
+			,
+			$data->{val_1}
+			,
+			"\n"
+			,
+			do {
+				my $data = $data->{nest} ;
+				my $out ;
+
+				my @data = $data ;
+				while( defined( my $data = shift @data ) ) {
+
+					if ( ref $data eq 'ARRAY' ) {
+						push @data, @{$data} ;
+						next ;
+					}
+
+					$out .= ref $data ne 'HASH' ? $data :
+					join( '',
+					"\n\tLevel: "
+					,
+					$data->{level}
+					,
+					"\n" ) ;
+				}
+				$out ;
+			}
+			,
+			"\n"
+			,
+			do {
+				my $data = $data->{opt} ;
+				my $out ;
+
+				my @data = $data ;
+				while( defined( my $data = shift @data ) ) {
+
+					if ( ref $data eq 'ARRAY' ) {
+						push @data, @{$data} ;
+						next ;
+					}
 
-sub map_join {
+					$out .= ref $data ne 'HASH' ? $data :
+					join( '', 
+					"\n\tOptional Level: "
+					,
+					$data->{level}
+					,
+					"\n" ) ;
+				}
+				$out ;
+			}
+			,
+			"\nVal 2: "
+			,
+			$data->{val_2}
+			,
+			"\nFooter\n" ) ;
+		}
+		$out ;
+	} ;
 
+	return \$out ;
 }
 
+
 sub append {
 
 }
@@ -66,34 +163,79 @@ sub append {
 
 sub concat {
 
+no warnings ;
+
 	my( $data ) = @_ ;
 
 	my $out = do {
 		my $out ;
-		foreach my $data ( ref $data eq 'ARRAY' ? @{$data} : $data ) {
+
+		my @data = $data ;
+		while( defined( my $data = shift @data ) ) {
+
+			if ( ref $data eq 'ARRAY' ) {
+				push @data, @{$data} ;
+				next ;
+			}
 
 			$out .= ref $data ne 'HASH' ? $data :
-			"text1\n"
+			"Header\nVal 1: "
+			.
+			$data->{val_1}
+			.
+			"\n"
 			.
 			do {
 				my $data = $data->{nest} ;
-
 				my $out ;
-				foreach my $data ( ref $data eq 'ARRAY' ? @{$data} : $data ) {
+
+				my @data = $data ;
+				while( defined( my $data = shift @data ) ) {
+
+					if ( ref $data eq 'ARRAY' ) {
+						push @data, @{$data} ;
+						next ;
+					}
 
 					$out .= ref $data ne 'HASH' ? $data :
-					"\n\tBAR is "
+					"\n\tLevel: "
 					.
-					$data->{bar}
+					$data->{level}
 					.
 					"\n" ;
 				}
+				$out ;
+			}
+			.
+			"\n"
+			.
+			do {
+				my $data = $data->{opt} ;
+				my $out ;
 
+				my @data = $data ;
+				while( defined( my $data = shift @data ) ) {
 
+					if ( ref $data eq 'ARRAY' ) {
+						push @data, @{$data} ;
+						next ;
+					}
+
+					$out .= ref $data ne 'HASH' ? $data :
+					"\n\tOptional Level: "
+					.
+					$data->{level}
+					.
+					"\n" ;
+				}
 				$out ;
 			}
 			.
-			"\n" ;
+			"\nVal 2: "
+			.
+			$data->{val_2}
+			.
+			"\nFooter\n" ;
 		}
 		$out ;
 	} ;
@@ -101,6 +243,75 @@ sub concat {
 	return \$out ;
 }
 
+sub append {
+
+no warnings ;
+
+	my( $data ) = @_ ;
+
+	my $out ;
+
+	my @data = $data ;
+	while( defined( my $data = shift @data ) ) {
+
+		if ( ref $data eq 'ARRAY' ) {
+			push @data, @{$data} ;
+			next ;
+		}
+
+		$out .= ref $data ne 'HASH' ? $data :
+		"Header\nVal 1: "
+		.
+		$data->{val_1}
+		.
+		"\n" ;
+
+		my @data = $data->{nest} ;
+		while( defined( my $data = shift @data ) ) {
+
+			if ( ref $data eq 'ARRAY' ) {
+				push @data, @{$data} ;
+				next ;
+			}
+
+			$out .= ref $data ne 'HASH' ? $data :
+			"\n\tLevel: "
+			.
+			$data->{level}
+			.
+			"\n" ;
+		}
+
+		$out .=
+		"\n" ;
+
+		my @data = $data->{opt} ;
+		while( defined( my $data = shift @data ) ) {
+
+			if ( ref $data eq 'ARRAY' ) {
+				push @data, @{$data} ;
+				next ;
+			}
+
+			$out .= ref $data ne 'HASH' ? $data :
+			"\n\tOptional Level: "
+			.
+			$data->{level}
+			.
+			"\n" ;
+		}
+
+		$out .=
+		"\nVal 2: "
+		.
+		$data->{val_2}
+		.
+		"\nFooter\n" ;
+	}
+
+	return \$out ;
+}
+
 
 sub generate_data {