feat(cache): Expose current cache version constant (#56)

Author: loewenheim

src/cache/mod.rs

@@ -52,7 +52,7 @@ use thiserror::Error;
 use crate::mapper::{format_cause, format_frames, format_throwable};
 use crate::{java, stacktrace, DeobfuscatedSignature, StackFrame, StackTrace, Throwable};
 
-pub use raw::ProguardCache;
+pub use raw::{ProguardCache, PRGCACHE_VERSION};
 
 /// Errors returned while loading/parsing a serialized [`ProguardCache`].
 ///

src/cache/raw.rs

@@ -18,6 +18,7 @@ pub(crate) const PRGCACHE_MAGIC: u32 = u32::from_le_bytes(PRGCACHE_MAGIC_BYTES);
 /// The byte-flipped magic, which indicates an endianness mismatch.
 pub(crate) const PRGCACHE_MAGIC_FLIPPED: u32 = PRGCACHE_MAGIC.swap_bytes();
 
+/// The current version of the ProguardCache format.
 pub const PRGCACHE_VERSION: u32 = 2;
 
 /// The header of a proguard cache file.

src/lib.rs

@@ -42,7 +42,7 @@ mod mapper;
 mod mapping;
 mod stacktrace;
 
-pub use cache::{CacheError, CacheErrorKind, ProguardCache};
+pub use cache::{CacheError, CacheErrorKind, ProguardCache, PRGCACHE_VERSION};
 pub use mapper::{DeobfuscatedSignature, ProguardMapper, RemappedFrameIter};
 pub use mapping::{
     LineMapping, MappingSummary, ParseError, ParseErrorKind, ProguardMapping, ProguardRecord,