diff --git a/Cargo.lock b/Cargo.lock index fc16ccf0a67..e4466a1da0d 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -4004,7 +4004,6 @@ dependencies = [ "rustc_span", "rustc_target", "rustc_type_ir", - "snap", "tempfile", "tracing", ] @@ -4889,12 +4888,6 @@ version = "1.13.2" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67" -[[package]] -name = "snap" -version = "1.1.1" -source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "1b6b67fb9a61334225b5b790716f609cd58395f895b3fe8b328786812a40bc3b" - [[package]] name = "socket2" version = "0.5.7" diff --git a/compiler/rustc_metadata/Cargo.toml b/compiler/rustc_metadata/Cargo.toml index 3b0151b1f94..cece700b4dd 100644 --- a/compiler/rustc_metadata/Cargo.toml +++ b/compiler/rustc_metadata/Cargo.toml @@ -27,7 +27,6 @@ rustc_session = { path = "../rustc_session" } rustc_span = { path = "../rustc_span" } rustc_target = { path = "../rustc_target" } rustc_type_ir = { path = "../rustc_type_ir" } -snap = "1" tempfile = "3.2" tracing = "0.1" # tidy-alphabetical-end diff --git a/compiler/rustc_metadata/src/locator.rs b/compiler/rustc_metadata/src/locator.rs index a4a69ae9514..f924ed48b6f 100644 --- a/compiler/rustc_metadata/src/locator.rs +++ b/compiler/rustc_metadata/src/locator.rs @@ -213,7 +213,7 @@ //! metadata::locator or metadata::creader for all the juicy details! use std::borrow::Cow; -use std::io::{Read, Result as IoResult, Write}; +use std::io::{Result as IoResult, Write}; use std::ops::Deref; use std::path::{Path, PathBuf}; use std::{cmp, fmt}; @@ -232,7 +232,6 @@ use rustc_span::Span; use rustc_span::symbol::Symbol; use rustc_target::spec::{Target, TargetTriple}; -use snap::read::FrameDecoder; use tracing::{debug, info}; use crate::creader::{Library, MetadataLoader}; @@ -792,7 +791,6 @@ fn get_metadata_section<'p>( CrateFlavor::Dylib => { let buf = loader.get_dylib_metadata(target, filename).map_err(MetadataError::LoadFailure)?; - // The header is uncompressed let header_len = METADATA_HEADER.len(); // header + u64 length of data let data_start = header_len + 8; @@ -806,7 +804,7 @@ fn get_metadata_section<'p>( ))); } - // Length of the compressed stream - this allows linkers to pad the section if they want + // Length of the metadata - this allows linkers to pad the section if they want let Ok(len_bytes) = <[u8; 8]>::try_from(&buf[header_len..cmp::min(data_start, buf.len())]) else { @@ -814,29 +812,10 @@ fn get_metadata_section<'p>( "invalid metadata length found".to_string(), )); }; - let compressed_len = u64::from_le_bytes(len_bytes) as usize; + let metadata_len = u64::from_le_bytes(len_bytes) as usize; // Header is okay -> inflate the actual metadata - let compressed_bytes = buf.slice(|buf| &buf[data_start..(data_start + compressed_len)]); - if &compressed_bytes[..cmp::min(METADATA_HEADER.len(), compressed_bytes.len())] - == METADATA_HEADER - { - // The metadata was not actually compressed. - compressed_bytes - } else { - debug!("inflating {} bytes of compressed metadata", compressed_bytes.len()); - // Assume the decompressed data will be at least the size of the compressed data, so we - // don't have to grow the buffer as much. - let mut inflated = Vec::with_capacity(compressed_bytes.len()); - FrameDecoder::new(&*compressed_bytes).read_to_end(&mut inflated).map_err(|_| { - MetadataError::LoadFailure(format!( - "failed to decompress metadata: {}", - filename.display() - )) - })?; - - slice_owned(inflated, Deref::deref) - } + buf.slice(|buf| &buf[data_start..(data_start + metadata_len)]) } CrateFlavor::Rmeta => { // mmap the file, because only a small fraction of it is read. diff --git a/src/tools/tidy/src/deps.rs b/src/tools/tidy/src/deps.rs index 5163f039a23..2c735b5f723 100644 --- a/src/tools/tidy/src/deps.rs +++ b/src/tools/tidy/src/deps.rs @@ -100,7 +100,6 @@ ("rustc_apfloat", "Apache-2.0 WITH LLVM-exception"), // rustc (license is the same as LLVM uses) ("ryu", "Apache-2.0 OR BSL-1.0"), // BSL is not acceptble, but we use it under Apache-2.0 // cargo/... (because of serde) ("self_cell", "Apache-2.0"), // rustc (fluent translations) - ("snap", "BSD-3-Clause"), // rustc ("wasi-preview1-component-adapter-provider", "Apache-2.0 WITH LLVM-exception"), // rustc // tidy-alphabetical-end ]; @@ -390,7 +389,6 @@ "sharded-slab", "shlex", "smallvec", - "snap", "stable_deref_trait", "stacker", "static_assertions",