#[macro_export]
macro_rules! row {
( $( $p:path )* ; $( $v:expr )* ) => (
Row(vec![$( $p($v) ),*])
)
}
#[macro_export]
macro_rules! select {
( $( $c: tt )|+ $( ; )? $( $t: path )|+ ; $( $v: expr )+ ; $( $( $v2: expr )+ );+) => ({
let mut rows = vec![
row!($( $t )+ ; $( $v )+),
];
Payload::Select {
labels: vec![$( stringify!($c).to_owned().replace("\"", "")),+],
rows: concat_with!(rows ; $( $t )+ ; $( $( $v2 )+ );+)
}
});
( $( $c: tt )|+ $( ; )? $( $t: path )|+ ; $( $v: expr )+ ) => (
Payload::Select {
labels: vec![$( stringify!($c).to_owned().replace("\"", "")),+],
rows: vec![row!($( $t )+ ; $( $v )+ )],
}
);
( $( $c: tt )|+ $( ; )?) => (
Payload::Select {
labels: vec![$( stringify!($c).to_owned().replace("\"", "")),+],
rows: vec![],
}
);
}
#[macro_export]
macro_rules! concat_with {
( $rows: ident ; $( $t:path )* ; $( $v: expr )* ) => ({
$rows.push(row!($( $t )* ; $( $v )*));
$rows
});
( $rows: ident ; $( $t:path )* ; $( $v: expr )* ; $( $( $v2: expr )* );* ) => ({
$rows.push(row!($( $t )* ; $( $v )*));
concat_with!($rows ; $( $t )* ; $( $( $v2 )* );* )
});
}
#[macro_export]
macro_rules! select_with_empty {
( $( $c: tt )|* ; $( $v: expr )* ) => (
Payload::Select {
labels: vec![$( stringify!($c).to_owned().replace("\"", "")),+],
rows: vec![Row(vec![$( $v ),*])],
}
);
( $( $c: tt )|* ; $( $v: expr )* ; $( $( $v2: expr )* );*) => ({
let mut rows = vec![
Row(vec![$( $v ),*])
];
Payload::Select {
labels: vec![$( stringify!($c).to_owned().replace("\"", "")),+],
rows: concat_with_empty!(rows ; $( $( $v2 )* );*),
}
});
}
#[macro_export]
macro_rules! concat_with_empty {
( $rows: ident ; $( $v: expr )* ) => ({
$rows.push(Row(vec![$( $v ),*]));
$rows
});
( $rows: ident ; $( $v: expr )* ; $( $( $v2: expr )* );* ) => ({
$rows.push(Row(vec![$( $v ),*]));
concat_with_empty!($rows ; $( $( $v2 )* );* )
});
}