expander wrappers initial

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

diff --git a/lib/SQL/Abstract.pm b/lib/SQL/Abstract.pm
index 503ac9c..d8b7e96 100644 (file)
--- a/lib/SQL/Abstract.pm
+++ b/lib/SQL/Abstract.pm
@@ -144,15 +144,14 @@ our %Defaults = (
     op => '_expand_op',
     func => '_expand_func',
     values => '_expand_values',
-    bind => '_expand_noop',
-    literal => '_expand_noop',
-    keyword => '_expand_noop',
   },
   expand_op => {
-    'between' => '_expand_between',
-    'not_between' => '_expand_between',
-    'in' => '_expand_in',
-    'not_in' => '_expand_in',
+    (map +($_ => __PACKAGE__->make_binop_expander('_expand_between')),
+      qw(between not_between)),
+    #(map +($_ => __PACKAGE__->make_binop_expander('_expand_in')),
+    #  qw(in not_in)),
+    in => '_expand_in',
+    not_in => '_expand_in',
     'nest' => '_expand_nest',
     (map +($_ => '_expand_op_andor'), ('and', 'or')),
     (map +($_ => '_expand_op_is'), ('is', 'is_not')),
@@ -310,6 +309,26 @@ 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 $type (qw(
     expand op_expand render op_render clause_expand clause_render
@@ -427,7 +446,6 @@ sub _expand_insert_clause_from {
   if (ref($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 ] },
@@ -992,23 +1010,26 @@ sub _expand_hashpair_op {
 
   my $op = $self->_normalize_op($k);
 
-  { # Old SQLA compat
+  my $wsop = join(' ', split '_', $op);
 
-    my $op = join(' ', split '_', $op);
+  my $is_special = List::Util::first { $wsop =~ $_->{regex} }
+                     @{$self->{special_ops}};
+
+  { # Old SQLA compat
 
     # the old special op system requires illegality for top-level use
 
     if (
       (our $Expand_Depth) == 1
       and (
-        List::Util::first { $op =~ $_->{regex} } @{$self->{special_ops}}
+        $is_special
         or (
           $self->{disable_old_special_ops}
-          and List::Util::first { $op =~ $_->{regex} } @BUILTIN_SPECIAL_OPS
+          and List::Util::first { $wsop =~ $_->{regex} } @BUILTIN_SPECIAL_OPS
         )
       )
     ) {
-      puke "Illegal use of top-level '-$op'"
+      puke "Illegal use of top-level '-$wsop'"
     }
   }
 
@@ -1016,6 +1037,10 @@ sub _expand_hashpair_op {
     return $self->$exp($op, $v);
   }
 
+  if ($self->{render}{$op}) {
+    return { "-${op}" => $v };
+  }
+
   # Ops prefixed with -not_ get converted
 
   if (my ($rest) = $op =~/^not_(.*)$/) {
@@ -1036,27 +1061,22 @@ sub _expand_hashpair_op {
     }
   }
 
-  my $type = (
-    $self->{unknown_unop_always_func} && !$self->{render_op}{$op}
-      ? -func
-      : -op
-  );
+  my $type = $is_special || $self->{render_op}{$op} ? -op : -func;
 
-  { # Old SQLA compat
+  if ($self->{restore_old_unop_handling}) {
+
+    # Old SQLA compat
 
     if (
       ref($v) eq 'HASH'
       and keys %$v == 1
       and (keys %$v)[0] =~ /^-/
+      and not $self->{render_op}{$op}
+      and not $is_special
     ) {
-      $type = (
-        (
-          (List::Util::first { $op =~ $_->{regex} } @{$self->{special_ops}})
-          or $self->{render_op}{$op}
-        )
-          ? -op
-          : -func
-      )
+      $type = -func;
+    } else {
+      $type = -op;
     }
   }
 
@@ -1289,7 +1309,6 @@ 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 (
@@ -1301,7 +1320,7 @@ sub _expand_between {
   }
   return +{ -op => [
     $op,
-    $self->expand_expr(ref($k) ? $k : { -ident => $k }),
+    $self->expand_expr($k),
     map $self->expand_expr($_, -value), @rhs
   ] }
 }
@@ -1353,11 +1372,6 @@ sub _expand_nest {
   return $self->_expand_expr($v);
 }
 
-sub _expand_noop {
-  my ($self, $type, $v) = @_;
-  return { "-${type}" => $v };
-}
-
 sub _expand_values {
   my ($self, undef, $values) = @_;
   return { -values => [
@@ -1433,7 +1447,9 @@ sub _render_literal {
 
 sub _render_keyword {
   my ($self, undef, $keyword) = @_;
-  return [ $self->_sqlcase(join ' ', split '_', $keyword) ];
+  return [ $self->_sqlcase(
+    ref($keyword) ? $$keyword : join ' ', split '_', $keyword
+  ) ];
 }
 
 sub _render_op {
@@ -1566,8 +1582,14 @@ sub _render_unop_paren {
 
 sub _render_unop_prefix {
   my ($self, $op, $v) = @_;
+  my $op_sql = $self->{restore_old_unop_handling}
+                 ? $self->_sqlcase($op)
+                 : { -keyword => $op };
   return $self->join_query_parts(' ',
-    $self->_sqlcase($op), $v->[0]
+    ($self->{restore_old_unop_handling}
+      ? $self->_sqlcase($op)
+      : { -keyword => \$op }),
+    $v->[0]
   );
 }