ripex 0.3.0

Multi-language structural parsing and fact extraction.
Documentation 
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

use crate::go::ast::*;

use super::visitor::Visitor;

pub fn walk_program(visitor: &mut dyn Visitor, program: &Program) {
    for decl in &program.decls {
        visitor.visit_decl(decl);
    }
}

pub fn walk_decl(visitor: &mut dyn Visitor, decl: &Decl) {
    match decl {
        Decl::Func(f, _) => visitor.visit_func_decl(f),
        Decl::Var(v, _) => visitor.visit_var_decl(v),
        Decl::Const(c, _) => visitor.visit_const_decl(c),
        Decl::Type(t, _) => visitor.visit_type_decl(t),
        Decl::Import(i, _) => visitor.visit_import_decl(i),
        Decl::ImportGroup(imports, _) => {
            for import in imports {
                visitor.visit_import_decl(import);
            }
        }
        Decl::Package(_, _) => {}
    }
}

pub fn walk_block(visitor: &mut dyn Visitor, block: &Block) {
    for s in &block.stmts {
        visitor.visit_stmt(s);
    }
}

pub fn walk_stmt(visitor: &mut dyn Visitor, stmt: &Stmt) {
    match stmt {
        Stmt::Expr(e, _) => visitor.visit_expr(e),
        Stmt::Decl(d, _) => visitor.visit_decl(d),
        Stmt::Assign(targets, _, _) => visitor.visit_assign_stmt(targets),
        Stmt::If(cond, body, alt, _) => {
            visitor.visit_expr(cond);
            visitor.visit_stmt(body);
            if let Some(ref a) = alt {
                visitor.visit_stmt(a);
            }
        }
        Stmt::For(init, test, update, body, _) => {
            if let Some(ref i) = init {
                visitor.visit_stmt(i);
            }
            if let Some(ref t) = test {
                visitor.visit_expr(t);
            }
            if let Some(ref u) = update {
                visitor.visit_stmt(u);
            }
            visitor.visit_stmt(body);
        }
        Stmt::ForRange(_, _key, _, body, _) => {
            visitor.visit_stmt(body);
        }
        Stmt::Switch(test, cases, _) => {
            if let Some(ref t) = test {
                visitor.visit_expr(t);
            }
            for c in cases {
                if let Some(ref e) = c.expr {
                    visitor.visit_expr(e);
                }
                for s in &c.body {
                    visitor.visit_stmt(s);
                }
            }
        }
        Stmt::Return(vals, _) => {
            for v in vals {
                visitor.visit_expr(v);
            }
        }
        Stmt::Block(b, _) => visitor.visit_block(b),
        Stmt::Defer(e, _) => visitor.visit_expr(e),
        Stmt::Go(e, _) => visitor.visit_expr(e),
        Stmt::Send(ch, val, _) => {
            visitor.visit_expr(ch);
            visitor.visit_expr(val);
        }
        Stmt::Label(_, s, _) => visitor.visit_stmt(s),
        _ => {}
    }
}

pub fn walk_expr(visitor: &mut dyn Visitor, expr: &Expr) {
    match expr {
        Expr::Binary(left, _, right, _) => {
            visitor.visit_expr(left);
            visitor.visit_expr(right);
        }
        Expr::Unary(_, operand, _) => visitor.visit_expr(operand),
        Expr::Call(func, args, _) => {
            visitor.visit_expr(func);
            for a in args {
                visitor.visit_expr(a);
            }
        }
        Expr::Index(arr, idx, _) => {
            visitor.visit_expr(arr);
            visitor.visit_expr(idx);
        }
        Expr::Selector(obj, _, _) => visitor.visit_expr(obj),
        Expr::Slice(arr, low, high, _) => {
            visitor.visit_expr(arr);
            if let Some(ref l) = low {
                visitor.visit_expr(l);
            }
            if let Some(ref h) = high {
                visitor.visit_expr(h);
            }
        }
        Expr::Array(elems, _) => {
            for e in elems {
                visitor.visit_expr(e);
            }
        }
        Expr::StructLit(_, fields, _) => {
            for f in fields {
                if let Some(ref v) = f.value {
                    visitor.visit_expr(v);
                }
            }
        }
        Expr::MapLit(entries, _) => {
            for (k, v) in entries {
                visitor.visit_expr(k);
                visitor.visit_expr(v);
            }
        }
        Expr::FuncLit(_, body, _) => visitor.visit_block(body),
        Expr::Paren(e, _) => visitor.visit_expr(e),
        Expr::TypeAssert(e, _, _) => visitor.visit_expr(e),
        Expr::CompositeLit(t, elems, _) => {
            visitor.visit_expr(t);
            for e in elems {
                visitor.visit_expr(e);
            }
        }
        _ => {}
    }
}