deflect 0.1.0

Reflection in Rust via DWARF debug info.
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

use super::Name;
use std::fmt;

/// A schema for [`fn`][prim@fn].
#[derive(Clone)]
pub struct Function<'dwarf, R: crate::gimli::Reader<Offset = usize>>
where
    R: crate::gimli::Reader<Offset = usize>,
{
    dwarf: &'dwarf crate::gimli::Dwarf<R>,
    unit: &'dwarf crate::gimli::Unit<R, usize>,
    entry: crate::gimli::DebuggingInformationEntry<'dwarf, 'dwarf, R>,
}

impl<'dwarf, R> Function<'dwarf, R>
where
    R: crate::gimli::Reader<Offset = usize>,
{
    /// Construct a new `Function` from a
    /// [`DW_TAG_subroutine_type`][crate::gimli::DW_TAG_subroutine_type].
    pub(crate) fn from_dw_tag_subroutine_type(
        dwarf: &'dwarf crate::gimli::Dwarf<R>,
        unit: &'dwarf crate::gimli::Unit<R, usize>,
        entry: crate::gimli::DebuggingInformationEntry<'dwarf, 'dwarf, R>,
    ) -> Result<Self, crate::Error> {
        crate::check_tag(&entry, crate::gimli::DW_TAG_subroutine_type)?;
        Ok(Self { dwarf, unit, entry })
    }

    /// The [DWARF](crate::gimli::Dwarf) sections that this `Function`'s
    /// debuginfo belongs to.
    #[allow(dead_code)]
    pub(crate) fn dwarf(&self) -> &'dwarf crate::gimli::Dwarf<R> {
        self.dwarf
    }

    /// The DWARF [unit][crate::gimli::Unit] that this `Function`'s debuginfo
    /// belongs to.
    #[allow(dead_code)]
    pub(crate) fn unit(&self) -> &crate::gimli::Unit<R, usize> {
        self.unit
    }

    /// The [debugging information
    /// entry][crate::gimli::DebuggingInformationEntry] this `Function`
    /// abstracts over.
    #[allow(dead_code)]
    pub(crate) fn entry(&self) -> &crate::gimli::DebuggingInformationEntry<'dwarf, 'dwarf, R> {
        &self.entry
    }

    /// The name of this type.
    pub fn name(&self) -> Result<Name<R>, crate::Error> {
        println!(
            "{:?}",
            crate::debug::DebugEntry::new(self.dwarf, self.unit, &self.entry)
        );
        Name::from_die(self.dwarf(), self.unit(), self.entry())
    }
}

impl<'dwarf, R> fmt::Debug for Function<'dwarf, R>
where
    R: crate::gimli::Reader<Offset = usize>,
{
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        let mut debug_tuple = f.debug_tuple("deflect::schema::Function");
        debug_tuple.field(&crate::debug::DebugEntry::new(
            self.dwarf,
            self.unit,
            &self.entry,
        ));
        debug_tuple.finish()
    }
}

impl<'dwarf, R> fmt::Display for Function<'dwarf, R>
where
    R: crate::gimli::Reader<Offset = usize>,
{
    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
        f.write_str("fn()")
    }
}