1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107

use cairo_lang_defs::ids::{
    EnumId, FreeFunctionId, FunctionWithBodyId, ImplDefId, ImplFunctionId, ModuleId, StructId,
    SubmoduleId, TraitFunctionId, TraitId,
};
use cairo_lang_diagnostics::Maybe;
use cairo_lang_syntax::attribute::structured::Attribute;

use crate::db::SemanticGroup;

pub trait AttributeTrait {
    fn name(&self, db: &dyn SemanticGroup) -> String;
    fn args(&self, db: &dyn SemanticGroup) -> String;
    fn full_text(&self, db: &dyn SemanticGroup) -> String {
        if self.args(db).is_empty() {
            self.name(db)
        } else {
            format!("{}({})", self.name(db), self.args(db))
        }
    }
    fn format(&self, db: &dyn SemanticGroup) -> String {
        format!("#[{}]", self.full_text(db))
    }
}
impl AttributeTrait for Attribute {
    fn name(&self, _db: &dyn SemanticGroup) -> String {
        self.id.to_string()
    }
    fn args(&self, db: &dyn SemanticGroup) -> String {
        self.args.iter().map(|arg| arg.text(db.upcast())).collect::<Vec<_>>().join(", ")
    }
}

/// Trait for querying attributes of semantic items.
pub trait SemanticQueryAttrs {
    /// Get the list of attributes attached to this node.
    ///
    /// Implementation detail, should not be used by this trait users.
    #[doc(hidden)]
    fn attributes_elements(&self, db: &dyn SemanticGroup) -> Maybe<Vec<Attribute>>;

    /// Collect all attributes attached to this node whose name (without args) is exactly `attr`.
    fn query_attr(&self, db: &dyn SemanticGroup, attr: &str) -> Maybe<Vec<Attribute>> {
        Ok(self.attributes_elements(db)?.into_iter().filter(|a| a.name(db) == attr).collect())
    }

    /// Find first attribute attached to this node whose name (without args) is exactly `attr`.
    fn find_attr(&self, db: &dyn SemanticGroup, attr: &str) -> Maybe<Option<Attribute>> {
        Ok(self.query_attr(db, attr)?.into_iter().next())
    }

    /// Check if this node has an attribute whose name (without args) is exactly `attr`.
    fn has_attr(&self, db: &dyn SemanticGroup, attr: &str) -> Maybe<bool> {
        Ok(self.find_attr(db, attr)?.is_some())
    }
}

impl SemanticQueryAttrs for ModuleId {
    fn attributes_elements(&self, db: &dyn SemanticGroup) -> Maybe<Vec<Attribute>> {
        db.module_attributes(*self)
    }
}
impl SemanticQueryAttrs for StructId {
    fn attributes_elements(&self, db: &dyn SemanticGroup) -> Maybe<Vec<Attribute>> {
        db.struct_attributes(*self)
    }
}
impl SemanticQueryAttrs for TraitId {
    fn attributes_elements(&self, db: &dyn SemanticGroup) -> Maybe<Vec<Attribute>> {
        db.trait_attributes(*self)
    }
}
impl SemanticQueryAttrs for TraitFunctionId {
    fn attributes_elements(&self, db: &dyn SemanticGroup) -> Maybe<Vec<Attribute>> {
        db.trait_function_attributes(*self)
    }
}
impl SemanticQueryAttrs for ImplFunctionId {
    fn attributes_elements(&self, db: &dyn SemanticGroup) -> Maybe<Vec<Attribute>> {
        db.impl_function_attributes(*self)
    }
}
impl SemanticQueryAttrs for FunctionWithBodyId {
    fn attributes_elements(&self, db: &dyn SemanticGroup) -> Maybe<Vec<Attribute>> {
        db.function_with_body_attributes(*self)
    }
}
impl SemanticQueryAttrs for ImplDefId {
    fn attributes_elements(&self, db: &dyn SemanticGroup) -> Maybe<Vec<Attribute>> {
        db.impl_def_attributes(*self)
    }
}
impl SemanticQueryAttrs for EnumId {
    fn attributes_elements(&self, db: &dyn SemanticGroup) -> Maybe<Vec<Attribute>> {
        db.enum_attributes(*self)
    }
}

impl SemanticQueryAttrs for SubmoduleId {
    fn attributes_elements(&self, db: &dyn SemanticGroup) -> Maybe<Vec<Attribute>> {
        ModuleId::Submodule(*self).attributes_elements(db)
    }
}
impl SemanticQueryAttrs for FreeFunctionId {
    fn attributes_elements(&self, db: &dyn SemanticGroup) -> Maybe<Vec<Attribute>> {
        FunctionWithBodyId::Free(*self).attributes_elements(db)
    }
}