9 use Moose::Util::TypeConstraints;
10 use MooseX::Types -declare => [qw/NameSeparator/];
11 use MooseX::Types::Moose qw/ArrayRef Str Int HashRef CodeRef/;
12 use MooseX::AttributeHelpers;
13 use SQL::Abstract::Types qw/NameSeparator AST ArrayAST/;
17 our $VERSION = '2.000000';
19 our $AST_VERSION = '1';
21 # Operator precedence for bracketing
32 # LIKE is always "field LIKE <value>"
34 '-not_like' => 'NOT LIKE',
37 has where_dispatch_table => (
40 isa => HashRef[CodeRef],
41 metaclass => 'Collection::ImmutableHash',
43 get => 'lookup_where_dispatch'
51 metaclass => 'Collection::ImmutableHash',
53 exists => 'is_valid_binop',
54 get => 'binop_mapping',
55 keys => 'binary_operators'
59 sub _build_binop_map { return {%BINOP_MAP} };
61 method _build_where_dispatch_table {
62 my $binop = $self->can('_binop') or croak "InternalError: $self can't do _binop!";
64 map { $_ => $binop } $self->binary_operators
74 has name_separator => (
77 default => sub { ['.'] },
82 has list_separator => (
92 clearer => '_clear_binds',
94 default => sub { [ ] },
95 metaclass => 'Collection::Array',
101 # TODO: once MXMS supports %args, use that here
102 method create(ClassName $class: Int $ver) {
103 croak "AST version $ver is greater than supported version of $AST_VERSION"
104 if $ver > $AST_VERSION;
106 my $name = "${class}::AST::v$ver";
107 Class::MOP::load_class($name);
109 return $name->new(ast_version => $ver);
113 method generate(ClassName $class: AST $ast) {
114 croak "SQL::Abstract AST version not specified"
115 unless ($ast->[0] eq '-ast_version');
117 my (undef, $ver) = splice(@$ast, 0, 2);
119 # TODO: once MXMS supports %args, use that here
120 my $self = $class->create($ver);
122 return ($self->dispatch($ast), $self->binds);
126 $self->_clear_binds();
129 method dispatch (AST $ast) {
130 # I want multi methods!
132 if (is_ArrayAST($ast)) {
133 ($tag = $ast->[0]) =~ s/^-/_/;
135 $tag = "_" . $ast->{-type};
138 my $meth = $self->can($tag) || croak "Unknown tag '$tag'";
139 return $meth->($self, $ast);