clean up calling convention

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

diff --git a/lib/SQL/Abstract.pm b/lib/SQL/Abstract.pm
index f736487..340a757 100644 (file)
--- a/lib/SQL/Abstract.pm
+++ b/lib/SQL/Abstract.pm
@@ -208,6 +208,7 @@ sub new {
     (map +($_ => '_expand_op_is'), ('is', 'is_not')),
     ident => '_expand_ident',
     value => '_expand_value',
+    func => '_expand_func',
   };
 
   $opt{expand_op} = {
@@ -270,16 +271,13 @@ sub insert {
 
   my @parts = ([ $self->_sqlcase('insert into').' '.$table ]);
   push @parts, [ $self->render_aqt($f_aqt) ] if $f_aqt;
-  push @parts, [ $self->render_aqt($v_aqt) ];
-  $parts[-1][0] =~ s/^/VALUES /;
+  push @parts, [ $self->_sqlcase('values') ], [ $self->render_aqt($v_aqt) ];
 
   if ($options->{returning}) {
     push @parts, [ $self->_insert_returning($options) ];
   }
 
-  my ($sql, @bind) = $self->_join_parts(' ', @parts);
-
-  return wantarray ? ($sql, @bind) : $sql;
+  return $self->join_clauses(' ', @parts);
 }
 
 sub _expand_insert_values {
@@ -532,14 +530,17 @@ sub render_aqt {
   die "No" if @rest;
   die "Not a node type: $k" unless $k =~ s/^-//;
   if (my $meth = $self->{render}{$k}) {
-    return $self->$meth($v);
+    return $self->$meth($k, $v);
   }
   die "notreached: $k";
 }
 
 sub render_expr {
   my ($self, $expr, $default_scalar_to) = @_;
-  $self->render_aqt($self->expand_expr($expr, $default_scalar_to));
+  my ($sql, @bind) = $self->render_aqt(
+    $self->expand_expr($expr, $default_scalar_to)
+  );
+  return (wantarray ? ($sql, @bind) : $sql);
 }
 
 sub _normalize_op {
@@ -587,6 +588,11 @@ sub _expand_hashpair {
   }
   if ($k =~ /^-/) {
     return $self->_expand_hashpair_op($k, $v);
+  } elsif ($k =~ /^[^\w]/i) {
+    my ($lhs, @rhs) = @$v;
+    return $self->_expand_op(
+      -op, [ $k, $self->expand_expr($lhs, -ident), @rhs ]
+    );
   }
   return $self->_expand_hashpair_ident($k, $v);
 }
@@ -718,29 +724,29 @@ sub _expand_hashpair_op {
     return { $k => $v };
   }
 
-  # hashref RHS values get expanded and used as op/func args
+  my $type = $self->{unknown_unop_always_func} ? -func : -op;
 
-  if (
-    ref($v) eq 'HASH'
-    and keys %$v == 1
-    and (keys %$v)[0] =~ /^-/
-  ) {
-    my ($func) = $k =~ /^-(.*)$/;
-    { # Old SQLA compat
-      if (List::Util::first { $func =~ $_->{regex} } @{$self->{special_ops}}) {
-        return +{ -op => [ $func, $self->_expand_expr($v) ] };
-      }
-    }
-    return +{ -func => [ $func, $self->_expand_expr($v) ] };
-  }
-
-  # scalars and literals get simply expanded
+  { # Old SQLA compat
 
-  if (!ref($v) or is_literal_value($v)) {
-    return +{ -op => [ $op, $self->_expand_expr($v) ] };
+    if (
+      ref($v) eq 'HASH'
+      and keys %$v == 1
+      and (keys %$v)[0] =~ /^-/
+    ) {
+      $type = (
+        (List::Util::first { $op =~ $_->{regex} } @{$self->{special_ops}})
+          ? -op
+          : -func
+      )
+    }
   }
 
-  die "notreached";
+  return +{ $type => [
+    $op,
+    ($type eq -func and ref($v) eq 'ARRAY')
+      ? map $self->_expand_expr($_), @$v
+      : $self->_expand_expr($v)
+  ] };
 }
 
 sub _expand_hashpair_cmp {
@@ -844,6 +850,12 @@ sub _dwim_op_to_is {
   puke(sprintf $fail, $op);
 }
 
+sub _expand_func {
+  my ($self, undef, $args) = @_;
+  my ($func, @args) = @$args;
+  return { -func => [ $func, map $self->expand_expr($_), @args ] };
+}
+
 sub _expand_ident {
   my ($self, undef, $body, $k) = @_;
   return $self->_expand_hashpair_cmp(
@@ -1056,20 +1068,23 @@ sub _recurse_where {
 }
 
 sub _render_ident {
-  my ($self, $ident) = @_;
+  my ($self, undef, $ident) = @_;
 
   return $self->_convert($self->_quote($ident));
 }
 
 sub _render_row {
-  my ($self, $values) = @_;
-  my ($sql, @bind) = $self->_render_op([ ',', @$values ]);
+  my ($self, undef, $values) = @_;
+  my ($sql, @bind) = $self->_render_op(undef, [ ',', @$values ]);
   return "($sql)", @bind;  
 }
 
 sub _render_func {
-  my ($self, $rest) = @_;
+  my ($self, undef, $rest) = @_;
   my ($func, @args) = @$rest;
+  if (ref($func) eq 'HASH') {
+    $func = $self->render_aqt($func);
+  }
   my @arg_sql;
   my @bind = map {
     my @x = @$_;
@@ -1080,18 +1095,18 @@ sub _render_func {
 }
 
 sub _render_bind {
-  my ($self,  $bind) = @_;
+  my ($self, undef, $bind) = @_;
   return ($self->_convert('?'), $self->_bindtype(@$bind));
 }
 
 sub _render_literal {
-  my ($self, $literal) = @_;
+  my ($self, undef, $literal) = @_;
   $self->_assert_bindval_matches_bindtype(@{$literal}[1..$#$literal]);
   return @$literal;
 }
 
 sub _render_op {
-  my ($self, $v) = @_;
+  my ($self, undef, $v) = @_;
   my ($op, @args) = @$v;
   if (my $r = $self->{render_op}{$op}) {
     return $self->$r($op, \@args);
@@ -1173,7 +1188,7 @@ sub _render_op_andor {
   my @parts = grep length($_->[0]), map [ $self->render_aqt($_) ], @$args;
   return '' unless @parts;
   return @{$parts[0]} if @parts == 1;
-  my ($sql, @bind) = $self->_join_parts(' '.$self->_sqlcase($op).' ', @parts);
+  my ($sql, @bind) = $self->join_clauses(' '.$self->_sqlcase($op).' ', @parts);
   return '( '.$sql.' )', @bind;
 }
 
@@ -1186,14 +1201,14 @@ sub _render_op_multop {
                 ? ', '
                 :  ' '.$self->_sqlcase(join ' ', split '_', $op).' '
              );
-  return $self->_join_parts($join, @parts);
+  return $self->join_clauses($join, @parts);
 }
 
-sub _join_parts {
+sub join_clauses {
   my ($self, $join, @parts) = @_;
   return (
     join($join, map $_->[0], @parts),
-    map @{$_}[1..$#$_], @parts
+    (wantarray ? (map @{$_}[1..$#$_], @parts) : ()),
   );
 }
 
@@ -1258,6 +1273,9 @@ sub _expand_order_by {
 
   return unless defined($arg) and not (ref($arg) eq 'ARRAY' and !@$arg);
 
+  return $self->_expand_maybe_list_expr($arg)
+    if ref($arg) eq 'HASH' and ($arg->{-op}||[''])->[0] eq ',';
+
   my $expander = sub {
     my ($self, $dir, $expr) = @_;
     my @to_expand = ref($expr) eq 'ARRAY' ? @$expr : $expr;
@@ -1343,7 +1361,10 @@ sub _table  {
 
 sub _expand_maybe_list_expr {
   my ($self, $expr, $default) = @_;
-  return $expr if ref($expr) eq 'HASH' and (($expr->{-op}||[''])->[0] eq ',');
+  return { -op => [
+    ',', map $self->expand_expr($_, $default), 
+          @{$expr->{-op}}[1..$#{$expr->{-op}}]
+  ] } if ref($expr) eq 'HASH' and ($expr->{-op}||[''])->[0] eq ',';
   return +{ -op => [ ',',
     map $self->expand_expr($_, $default),
       ref($expr) eq 'ARRAY' ? @$expr : $expr