neutralts/
macros.rs

1
2// Inherit, macro: new_child_parse
3// -------------------------------
4// Inheritance is implemented with this macro. It is also used for the inheritance
5// of the application itself.
6//
7//
8// Block level scope example:
9//    {:code; <--------------------------.
10//        {:* block *:}                  |<---- Block
11//        {:param; name >> value :} <----|----- Set "name" for this block and its children
12//        {:param; name :} <-------------|----- "name" has the value "value".
13//        {:code;                        |
14//            {:* child block *:}        |
15//            {:param; name :} <---------|----- "name" has the value "value".
16//        :}                             |
17//    :} <-------------------------------·
18//    {:param; name :} <----------------------- outside block, no value or a previous value if any.
19//
20//
21// "include" has a block scope, then:
22//    {:code;
23//        {:* include for set "snippet-name" *:}
24//        {:include; snippet.ntpl :}
25//        {:snippet; snippet-name :} {:* Ok, "snippet-name" is set *:}
26//    :}
27//    {:snippet; snippet-name :} {:* Ko, "snippet-name" is not set *:}
28//
29// The modifier scope (+) adds the scope to the current level to make it possible to do this:
30//    {:+bool; something >>
31//        {:include; snippet.ntpl :}
32//    :}
33//    {:snippet; snippet-name :} {:* Ok, "snippet-name" is set *:}
34//
35#[macro_use]
36mod macros {
37    macro_rules! new_child_parse {
38        ($self:expr, $source:expr, $scope:expr) => {{
39            let mut child_inherit = $self.inherit.clone();
40            let shared = &mut $self.shared;
41
42            //  "bif.alias" is used and not "bif.name" because in "var" or "unprintable"
43            // its name is an empty string and could have more meanings.
44            child_inherit.alias = $self.alias.clone();
45
46            if !$self.file_path.is_empty() {
47                child_inherit.current_file = $self.file_path.clone();
48            }
49
50            if !$self.dir.is_empty() {
51                child_inherit.current_dir = $self.dir.clone();
52            }
53
54            // Create a new version of the schema if mod_scope
55            // This is necessary because indirections are used,
56            // and create_block_schema takes care of that.
57            if $scope {
58                $self.inherit.create_block_schema(shared);
59            }
60
61            let mut block = $crate::block_parser::BlockParser::new(shared, &child_inherit);
62            let code = block.parse($source, $self.only);
63
64            // Update this block with the data generated in the child
65            if $scope {
66                block.update_indir(&$self.inherit.indir);
67            }
68
69            code
70        }};
71    }
72}
neutralts/macros.rs

neutralts/
macros.rs
