cairo-lang-syntax 2.1.2

Cairo syntax representation.
Documentation 
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use cairo_lang_filesystem::db::{FilesDatabase, FilesGroup};
use cairo_lang_utils::Upcast;

use super::db::SyntaxDatabase;

#[salsa::database(SyntaxDatabase, FilesDatabase)]
#[derive(Default)]
pub struct DatabaseForTesting {
    storage: salsa::Storage<DatabaseForTesting>,
}
impl salsa::Database for DatabaseForTesting {}
impl Upcast<dyn FilesGroup> for DatabaseForTesting {
    fn upcast(&self) -> &(dyn FilesGroup + 'static) {
        self
    }
}