unop expander wrapper conversion

[scpubgit/Q-Branch.git] / lib / SQL / Abstract.pm

diff --git a/lib/SQL/Abstract.pm b/lib/SQL/Abstract.pm
index 476ca94..766091b 100644 (file)
--- a/lib/SQL/Abstract.pm
+++ b/lib/SQL/Abstract.pm
@@ -146,15 +146,14 @@ our %Defaults = (
     values => '_expand_values',
   },
   expand_op => {
-    'between' => '_expand_between',
-    'not_between' => '_expand_between',
-    'in' => '_expand_in',
-    'not_in' => '_expand_in',
-    'nest' => '_expand_nest',
+    (map +($_ => __PACKAGE__->make_binop_expander('_expand_between')),
+      qw(between not_between)),
+    (map +($_ => __PACKAGE__->make_binop_expander('_expand_in')),
+      qw(in not_in)),
     (map +($_ => '_expand_op_andor'), ('and', 'or')),
     (map +($_ => '_expand_op_is'), ('is', 'is_not')),
-    'ident' => '_expand_ident',
-    'value' => '_expand_value',
+    (map +($_ => __PACKAGE__->make_unop_expander("_expand_${_}")),
+      qw(ident value nest)),
   },
   render => {
     (map +($_, "_render_$_"),
@@ -307,6 +306,26 @@ sub _ext_rw {
   return $self;
 }
 
+sub make_unop_expander {
+  my (undef, $exp) = @_;
+  sub {
+    my ($self, $name, $body, $k) = @_;
+    return $self->_expand_hashpair_cmp($k, { "-${name}" => $body })
+      if defined($k);
+    return $self->$exp($name, $body);
+  }
+}
+
+sub make_binop_expander {
+  my (undef, $exp) = @_;
+  sub {
+    my ($self, $name, $body, $k) = @_;
+    $k = shift @{$body = [ @$body ]} unless defined $k;
+    $k = ref($k) ? $k : { -ident => $k };
+    return $self->$exp($name, $body, $k);
+  }
+}
+
 BEGIN {
   foreach my $type (qw(
     expand op_expand render op_render clause_expand clause_render
@@ -424,7 +443,6 @@ sub _expand_insert_clause_from {
   if (ref($data) eq 'HASH' and (keys(%$data))[0] =~ /^-/) {
     return $self->expand_expr($data);
   }
-  return $data if ref($data) eq 'HASH' and $data->{-row};
   my ($f_aqt, $v_aqt) = $self->_expand_insert_values($data);
   return (
     from => { -values => [ $v_aqt ] },
@@ -1174,10 +1192,7 @@ sub _expand_func {
 }
 
 sub _expand_ident {
-  my ($self, undef, $body, $k) = @_;
-  return $self->_expand_hashpair_cmp(
-    $k, { -ident => $body }
-  ) if defined($k);
+  my ($self, undef, $body) = @_;
   unless (defined($body) or (ref($body) and ref($body) eq 'ARRAY')) {
     puke "-ident requires a single plain scalar argument (a quotable identifier) or an arrayref of identifier parts";
   }
@@ -1191,9 +1206,6 @@ sub _expand_ident {
 }
 
 sub _expand_value {
-  return $_[0]->_expand_hashpair_cmp(
-    $_[3], { -value => $_[2] },
-  ) if defined($_[3]);
   +{ -bind => [ our $Cur_Col_Meta, $_[2] ] };
 }
 
@@ -1288,7 +1300,6 @@ sub _expand_op_is {
 
 sub _expand_between {
   my ($self, $op, $vv, $k) = @_;
-  $k = shift @{$vv = [ @$vv ]} unless defined $k;
   my @rhs = map $self->_expand_expr($_),
               ref($vv) eq 'ARRAY' ? @$vv : $vv;
   unless (
@@ -1300,14 +1311,13 @@ sub _expand_between {
   }
   return +{ -op => [
     $op,
-    $self->expand_expr(ref($k) ? $k : { -ident => $k }),
+    $self->expand_expr($k),
     map $self->expand_expr($_, -value), @rhs
   ] }
 }
 
 sub _expand_in {
   my ($self, $op, $vv, $k) = @_;
-  $k = shift @{$vv = [ @$vv ]} unless defined $k;
   if (my $literal = is_literal_value($vv)) {
     my ($sql, @bind) = @$literal;
     my $opened_sql = $self->_open_outer_paren($sql);