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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167

use std::fmt::Debug;

use derive_more::{From, Into, IsVariant};
#[cfg(feature = "serde")]
use serde::{Deserialize, Serialize};
#[cfg(feature = "size-of")]
use size_of::SizeOf;

use kodept_core::structure::rlt;
use kodept_core::structure::rlt::BlockLevelNode;
use kodept_core::structure::span::CodeHolder;

use crate::{BodiedFunctionDeclaration, ExpressionBlock, node, Operation, Type, wrapper};
use crate::graph::{GenericASTNode, NodeUnion};
use crate::graph::{Identity, SyntaxTreeBuilder};
use crate::graph::NodeId;
use crate::traits::{Linker, PopulateTree};

wrapper! {
    #[derive(Debug, PartialEq, From, Into)]
    #[cfg_attr(feature = "serde", derive(Deserialize, Serialize))]
    pub wrapper BlockLevel {
        func(BodiedFunctionDeclaration) = GenericASTNode::BodiedFunction(x) => Some(x),
        init_var(InitializedVariable) = GenericASTNode::InitializedVariable(x) => Some(x),
        operation(Operation) = n if Operation::contains(n) => n.try_into().ok(),
    }
}

wrapper! {
    #[derive(Debug, PartialEq, From, Into)]
    #[cfg_attr(feature = "serde", derive(Deserialize, Serialize))]
    pub wrapper Body {
        block(ExpressionBlock) = GenericASTNode::ExpressionBlock(x) => Some(x),
        simple(BlockLevel) = x if BlockLevel::contains(x) => x.try_into().ok(),
    }
}

node! {
    #[derive(Debug, PartialEq)]
    #[cfg_attr(feature = "size-of", derive(SizeOf))]
    #[cfg_attr(feature = "serde", derive(Deserialize, Serialize))]
    pub struct Variable {
        pub kind: VariableKind,
        pub name: String,;
        pub assigned_type: Option<Type>,
    }
}

node! {
    #[derive(Debug, PartialEq)]
    #[cfg_attr(feature = "size-of", derive(SizeOf))]
    #[cfg_attr(feature = "serde", derive(Deserialize, Serialize))]
    pub struct InitializedVariable {
        ;
        pub variable: Identity<Variable>,
        pub expr: Identity<Operation>,
    }
}

#[derive(Debug, PartialEq, Clone, IsVariant)]
#[cfg_attr(feature = "size-of", derive(SizeOf))]
#[cfg_attr(feature = "serde", derive(Deserialize, Serialize))]
pub enum VariableKind {
    Immutable,
    Mutable,
}

impl BlockLevel {
    pub fn as_body(&self) -> Option<&Body> {
        match self {
            BlockLevel(n @ GenericASTNode::ExpressionBlock(_)) => Some(Body::wrap(n)),
            BlockLevel(n @ GenericASTNode::InitializedVariable(_)) => Some(Body::wrap(n)),
            BlockLevel(n @ GenericASTNode::BodiedFunction(_)) => Some(Body::wrap(n)),
            BlockLevel(n) if Operation::contains(n) => Some(Body::wrap(n)),
            _ => None,
        }
    }

    pub fn as_body_mut(&mut self) -> Option<&mut Body> {
        match self {
            BlockLevel(n @ GenericASTNode::ExpressionBlock(_)) => Some(Body::wrap_mut(n)),
            BlockLevel(n @ GenericASTNode::InitializedVariable(_)) => Some(Body::wrap_mut(n)),
            BlockLevel(n @ GenericASTNode::BodiedFunction(_)) => Some(Body::wrap_mut(n)),
            BlockLevel(n) if Operation::contains(n) => Some(Body::wrap_mut(n)),
            _ => None,
        }
    }
}

impl PopulateTree for rlt::Body {
    type Output = Body;

    fn convert<'a>(
        &'a self,
        builder: &mut SyntaxTreeBuilder,
        context: &mut (impl Linker<'a> + CodeHolder),
    ) -> NodeId<Self::Output> {
        match self {
            rlt::Body::Block(x) => x.convert(builder, context).cast(),
            rlt::Body::Simplified { expression, .. } => expression.convert(builder, context).cast(),
        }
    }
}

impl PopulateTree for BlockLevelNode {
    type Output = BlockLevel;

    fn convert<'a>(
        &'a self,
        builder: &mut SyntaxTreeBuilder,
        context: &mut (impl Linker<'a> + CodeHolder),
    ) -> NodeId<Self::Output> {
        match self {
            BlockLevelNode::InitVar(x) => x.convert(builder, context).cast(),
            BlockLevelNode::Block(x) => x.convert(builder, context).cast(),
            BlockLevelNode::Function(x) => x.convert(builder, context).cast(),
            BlockLevelNode::Operation(x) => x.convert(builder, context).cast(),
        }
    }
}

impl PopulateTree for rlt::InitializedVariable {
    type Output = InitializedVariable;

    fn convert<'a>(
        &'a self,
        builder: &mut SyntaxTreeBuilder,
        context: &mut (impl Linker<'a> + CodeHolder),
    ) -> NodeId<Self::Output> {
        builder
            .add_node(InitializedVariable {
                id: Default::default(),
            })
            .with_children_from([&self.expression], context)
            .with_children_from([&self.variable], context)
            .with_rlt(context, self)
            .id()
    }
}

impl PopulateTree for rlt::Variable {
    type Output = Variable;

    fn convert<'a>(
        &'a self,
        builder: &mut SyntaxTreeBuilder,
        context: &mut (impl Linker<'a> + CodeHolder),
    ) -> NodeId<Self::Output> {
        let (kind, name, ty) = match self {
            rlt::Variable::Immutable {
                id, assigned_type, ..
            } => (VariableKind::Immutable, id, assigned_type),
            rlt::Variable::Mutable {
                id, assigned_type, ..
            } => (VariableKind::Mutable, id, assigned_type),
        };
        builder
            .add_node(Variable {
                kind,
                name: context.get_chunk_located(name).to_string(),
                id: Default::default(),
            })
            .with_children_from(ty.as_ref().map(|x| &x.1), context)
            .with_rlt(context, self)
            .id()
    }
}