# dynamic.rs - source
Source of the Rust file `/home/runner/.cargo/registry/src/github.com-1ecc6299db9ec823/xmas-elf-0.7.0/src/dynamic.rs`.
Keywords: rust, rustlang, rust-lang

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    use core::fmt;
    use {P32, P64};
    use zero::Pod;

    #[derive(Debug)]
    #[repr(C)]
    pub struct Dynamic<P> where Tag_<P>: fmt::Debug {
        tag: Tag_<P>,
        un: P,
    }

    unsafe impl<P> Pod for Dynamic<P> where Tag_<P>: fmt::Debug {}

    #[derive(Copy, Clone)]
    pub struct Tag_<P>(P);

    #[derive(Debug, PartialEq, Eq)]
    pub enum Tag<P> {
        Null,
        Needed,
        PltRelSize,
        Pltgot,
        Hash,
        StrTab,
        SymTab,
        Rela,
        RelaSize,
        RelaEnt,
        StrSize,
        SymEnt,
        Init,
        Fini,
        SoName,
        RPath,
        Symbolic,
        Rel,
        RelSize,
        RelEnt,
        PltRel,
        Debug,
        TextRel,
        JmpRel,
        BindNow,
        InitArray,
        FiniArray,
        InitArraySize,
        FiniArraySize,
        RunPath,
        Flags,
        PreInitArray,
        PreInitArraySize,
        SymTabShIndex,
        Flags1,
        OsSpecific(P),
        ProcessorSpecific(P),
    }

    macro_rules! impls {
        ($p: ident) => {
            impl Dynamic<$p> {
                pub fn get_tag(&self) -> Result<Tag<$p>, &'static str> {
                    self.tag.as_tag()
                }

                pub fn get_val(&self) -> Result<$p, &'static str> {
                    match try!(self.get_tag()) {
                        Tag::Needed | Tag::PltRelSize | Tag::RelaSize | Tag::RelaEnt | Tag::StrSize |
                        Tag::SymEnt | Tag::SoName | Tag::RPath | Tag::RelSize | Tag::RelEnt | Tag::PltRel |
                        Tag::InitArraySize | Tag::FiniArraySize | Tag::RunPath | Tag::Flags |
                        Tag::PreInitArraySize | Tag::Flags1 | Tag::OsSpecific(_) |
                        Tag::ProcessorSpecific(_) => Ok(self.un),
                        _ => Err("Invalid value"),
                    }
                }

                pub fn get_ptr(&self) -> Result<$p, &'static str> {
                    match try!(self.get_tag()) {
                        Tag::Pltgot | Tag::Hash | Tag::StrTab | Tag::SymTab | Tag::Rela | Tag::Init | Tag::Fini |
                        Tag::Rel | Tag::Debug | Tag::JmpRel | Tag::InitArray | Tag::FiniArray |
                        Tag::PreInitArray | Tag::SymTabShIndex  | Tag::OsSpecific(_) | Tag::ProcessorSpecific(_)
                        => Ok(self.un),
                         _ => Err("Invalid ptr"),
                    }
                }
            }

            impl Tag_<$p> {
                fn as_tag(self) -> Result<Tag<$p>, &'static str> {
                    match self.0 {
                        0 => Ok(Tag::Null),
                        1 => Ok(Tag::Needed),
                        2 => Ok(Tag::PltRelSize),
                        3 => Ok(Tag::Pltgot),
                        4 => Ok(Tag::Hash),
                        5 => Ok(Tag::StrTab),
                        6 => Ok(Tag::SymTab),
                        7 => Ok(Tag::Rela),
                        8 => Ok(Tag::RelaSize),
                        9 => Ok(Tag::RelaEnt),
                        10 => Ok(Tag::StrSize),
                        11 => Ok(Tag::SymEnt),
                        12 => Ok(Tag::Init),
                        13 => Ok(Tag::Fini),
                        14 => Ok(Tag::SoName),
                        15 => Ok(Tag::RPath),
                        16 => Ok(Tag::Symbolic),
                        17 => Ok(Tag::Rel),
                        18 => Ok(Tag::RelSize),
                        19 => Ok(Tag::RelEnt),
                        20 => Ok(Tag::PltRel),
                        21 => Ok(Tag::Debug),
                        22 => Ok(Tag::TextRel),
                        23 => Ok(Tag::JmpRel),
                        24 => Ok(Tag::BindNow),
                        25 => Ok(Tag::InitArray),
                        26 => Ok(Tag::FiniArray),
                        27 => Ok(Tag::InitArraySize),
                        28 => Ok(Tag::FiniArraySize),
                        29 => Ok(Tag::RunPath),
                        30 => Ok(Tag::Flags),
                        32 => Ok(Tag::PreInitArray),
                        33 => Ok(Tag::PreInitArraySize),
                        34 => Ok(Tag::SymTabShIndex),
                        0x6ffffffb => Ok(Tag::Flags1),
                        t if t >= 0x6000000D && t <= 0x6fffffff => Ok(Tag::OsSpecific(t)),
                        t if t >= 0x70000000 && t <= 0x7fffffff => Ok(Tag::ProcessorSpecific(t)),
                        _ => Err("Invalid tag value"),
                    }
                }
            }

            impl fmt::Debug for Tag_<$p> {
                fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
                    self.as_tag().fmt(f)
                }
            }
        }
    }

    impls!(P32);
    impls!(P64);

    /* Flag values used in the DT_FLAGS_1 .dynamic entry.  */
    pub const FLAG_1_NOW: u64 = 0x00000001;
    pub const FLAG_1_GLOBAL: u64 = 0x00000002;
    pub const FLAG_1_GROUP: u64 = 0x00000004;
    pub const FLAG_1_NODELETE: u64 = 0x00000008;
    pub const FLAG_1_LOADFLTR: u64 = 0x00000010;
    pub const FLAG_1_INITFIRST: u64 = 0x00000020;
    pub const FLAG_1_NOOPEN: u64 = 0x00000040;
    pub const FLAG_1_ORIGIN: u64 = 0x00000080;
    pub const FLAG_1_DIRECT: u64 = 0x00000100;
    pub const FLAG_1_TRANS: u64 = 0x00000200;
    pub const FLAG_1_INTERPOSE: u64 = 0x00000400;
    pub const FLAG_1_NODEFLIB: u64 = 0x00000800;
    pub const FLAG_1_NODUMP: u64 = 0x00001000;
    pub const FLAG_1_CONFALT: u64 = 0x00002000;
    pub const FLAG_1_ENDFILTEE: u64 = 0x00004000;
    pub const FLAG_1_DISPRELDNE: u64 = 0x00008000;
    pub const FLAG_1_DISPRELPND: u64 = 0x00010000;
    pub const FLAG_1_NODIRECT: u64 = 0x00020000;
    pub const FLAG_1_IGNMULDEF: u64 = 0x00040000;
    pub const FLAG_1_NOKSYMS: u64 = 0x00080000;
    pub const FLAG_1_NOHDR: u64 = 0x00100000;
    pub const FLAG_1_EDITED: u64 = 0x00200000;
    pub const FLAG_1_NORELOC: u64 = 0x00400000;
    pub const FLAG_1_SYMINTPOSE: u64 = 0x00800000;
    pub const FLAG_1_GLOBAUDIT: u64 = 0x01000000;
    pub const FLAG_1_SINGLETON: u64 = 0x02000000;
    pub const FLAG_1_STUB: u64 = 0x04000000;
    pub const FLAG_1_PIE: u64 = 0x08000000;