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authorValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
committerValentin Popov <valentin@popov.link>2024-07-19 15:37:58 +0300
commita990de90fe41456a23e58bd087d2f107d321f3a1 (patch)
tree15afc392522a9e85dc3332235e311b7d39352ea9 /vendor/gimli/src/write/str.rs
parent3d48cd3f81164bbfc1a755dc1d4a9a02f98c8ddd (diff)
downloadfparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.tar.xz
fparkan-a990de90fe41456a23e58bd087d2f107d321f3a1.zip
Deleted vendor folder
Diffstat (limited to 'vendor/gimli/src/write/str.rs')
-rw-r--r--vendor/gimli/src/write/str.rs172
1 files changed, 0 insertions, 172 deletions
diff --git a/vendor/gimli/src/write/str.rs b/vendor/gimli/src/write/str.rs
deleted file mode 100644
index 83285c0..0000000
--- a/vendor/gimli/src/write/str.rs
+++ /dev/null
@@ -1,172 +0,0 @@
-use alloc::vec::Vec;
-use indexmap::IndexSet;
-use std::ops::{Deref, DerefMut};
-
-use crate::common::{DebugLineStrOffset, DebugStrOffset, SectionId};
-use crate::write::{BaseId, Result, Section, Writer};
-
-// Requirements:
-// - values are `[u8]`, null bytes are not allowed
-// - insertion returns a fixed id
-// - inserting a duplicate returns the id of the existing value
-// - able to convert an id to a section offset
-// Optional?
-// - able to get an existing value given an id
-//
-// Limitations of current implementation (using IndexSet):
-// - inserting requires either an allocation for duplicates,
-// or a double lookup for non-duplicates
-// - doesn't preserve offsets when updating an existing `.debug_str` section
-//
-// Possible changes:
-// - calculate offsets as we add values, and use that as the id.
-// This would avoid the need for DebugStrOffsets but would make it
-// hard to implement `get`.
-macro_rules! define_string_table {
- ($name:ident, $id:ident, $section:ident, $offsets:ident, $docs:expr) => {
- #[doc=$docs]
- #[derive(Debug, Default)]
- pub struct $name {
- base_id: BaseId,
- strings: IndexSet<Vec<u8>>,
- }
-
- impl $name {
- /// Add a string to the string table and return its id.
- ///
- /// If the string already exists, then return the id of the existing string.
- ///
- /// # Panics
- ///
- /// Panics if `bytes` contains a null byte.
- pub fn add<T>(&mut self, bytes: T) -> $id
- where
- T: Into<Vec<u8>>,
- {
- let bytes = bytes.into();
- assert!(!bytes.contains(&0));
- let (index, _) = self.strings.insert_full(bytes);
- $id::new(self.base_id, index)
- }
-
- /// Return the number of strings in the table.
- #[inline]
- pub fn count(&self) -> usize {
- self.strings.len()
- }
-
- /// Get a reference to a string in the table.
- ///
- /// # Panics
- ///
- /// Panics if `id` is invalid.
- pub fn get(&self, id: $id) -> &[u8] {
- debug_assert_eq!(self.base_id, id.base_id);
- self.strings.get_index(id.index).map(Vec::as_slice).unwrap()
- }
-
- /// Write the string table to the `.debug_str` section.
- ///
- /// Returns the offsets at which the strings are written.
- pub fn write<W: Writer>(&self, w: &mut $section<W>) -> Result<$offsets> {
- let mut offsets = Vec::new();
- for bytes in self.strings.iter() {
- offsets.push(w.offset());
- w.write(bytes)?;
- w.write_u8(0)?;
- }
-
- Ok($offsets {
- base_id: self.base_id,
- offsets,
- })
- }
- }
- };
-}
-
-define_id!(StringId, "An identifier for a string in a `StringTable`.");
-
-define_string_table!(
- StringTable,
- StringId,
- DebugStr,
- DebugStrOffsets,
- "A table of strings that will be stored in a `.debug_str` section."
-);
-
-define_section!(DebugStr, DebugStrOffset, "A writable `.debug_str` section.");
-
-define_offsets!(
- DebugStrOffsets: StringId => DebugStrOffset,
- "The section offsets of all strings within a `.debug_str` section."
-);
-
-define_id!(
- LineStringId,
- "An identifier for a string in a `LineStringTable`."
-);
-
-define_string_table!(
- LineStringTable,
- LineStringId,
- DebugLineStr,
- DebugLineStrOffsets,
- "A table of strings that will be stored in a `.debug_line_str` section."
-);
-
-define_section!(
- DebugLineStr,
- DebugLineStrOffset,
- "A writable `.debug_line_str` section."
-);
-
-define_offsets!(
- DebugLineStrOffsets: LineStringId => DebugLineStrOffset,
- "The section offsets of all strings within a `.debug_line_str` section."
-);
-
-#[cfg(test)]
-#[cfg(feature = "read")]
-mod tests {
- use super::*;
- use crate::read;
- use crate::write::EndianVec;
- use crate::LittleEndian;
-
- #[test]
- fn test_string_table() {
- let mut strings = StringTable::default();
- assert_eq!(strings.count(), 0);
- let id1 = strings.add(&b"one"[..]);
- let id2 = strings.add(&b"two"[..]);
- assert_eq!(strings.add(&b"one"[..]), id1);
- assert_eq!(strings.add(&b"two"[..]), id2);
- assert_eq!(strings.get(id1), &b"one"[..]);
- assert_eq!(strings.get(id2), &b"two"[..]);
- assert_eq!(strings.count(), 2);
-
- let mut debug_str = DebugStr::from(EndianVec::new(LittleEndian));
- let offsets = strings.write(&mut debug_str).unwrap();
- assert_eq!(debug_str.slice(), b"one\0two\0");
- assert_eq!(offsets.get(id1), DebugStrOffset(0));
- assert_eq!(offsets.get(id2), DebugStrOffset(4));
- assert_eq!(offsets.count(), 2);
- }
-
- #[test]
- fn test_string_table_read() {
- let mut strings = StringTable::default();
- let id1 = strings.add(&b"one"[..]);
- let id2 = strings.add(&b"two"[..]);
-
- let mut debug_str = DebugStr::from(EndianVec::new(LittleEndian));
- let offsets = strings.write(&mut debug_str).unwrap();
-
- let read_debug_str = read::DebugStr::new(debug_str.slice(), LittleEndian);
- let str1 = read_debug_str.get_str(offsets.get(id1)).unwrap();
- let str2 = read_debug_str.get_str(offsets.get(id2)).unwrap();
- assert_eq!(str1.slice(), &b"one"[..]);
- assert_eq!(str2.slice(), &b"two"[..]);
- }
-}