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Add [TRACKED_NO_CRATE_HASH] and [SUBSTRUCT] directives
This is necessary for options that should invalidate the incremental hash but *not* affect the crate hash (e.g. --remap-path-prefix). This doesn't add `for_crate_hash` to the trait directly because it's not relevant for *types*, only for *options*, which are fields on a larger struct. Instead, it adds a new `SUBSTRUCT` directive for options, which does take a `for_crate_hash` parameter. - Use TRACKED_NO_CRATE_HASH for --remap-path-prefix - Add test that `remap_path_prefix` is tracked - Reduce duplication in the test suite to avoid future churn
This commit is contained in:
Joshua Nelson
parent
fb7018b41e
commit
272015190d
@ -104,7 +104,7 @@ pub fn load_dep_graph(sess: &Session) -> DepGraphFuture {
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// Fortunately, we just checked that this isn't the case.
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let path = dep_graph_path_from(&sess.incr_comp_session_dir());
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let report_incremental_info = sess.opts.debugging_opts.incremental_info;
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let expected_hash = sess.opts.dep_tracking_hash();
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let expected_hash = sess.opts.dep_tracking_hash(false);
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let mut prev_work_products = FxHashMap::default();
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let nightly_build = sess.is_nightly_build();
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@ -219,7 +219,7 @@ pub fn build_dep_graph(
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}
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// First encode the commandline arguments hash
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if let Err(err) = sess.opts.dep_tracking_hash().encode(&mut encoder) {
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if let Err(err) = sess.opts.dep_tracking_hash(false).encode(&mut encoder) {
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sess.err(&format!(
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"failed to write dependency graph hash `{}`: {}",
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path_buf.display(),
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@ -19,6 +19,7 @@ use rustc_span::symbol::sym;
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use rustc_span::SourceFileHashAlgorithm;
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use rustc_target::spec::{CodeModel, LinkerFlavor, MergeFunctions, PanicStrategy};
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use rustc_target::spec::{RelocModel, RelroLevel, SanitizerSet, SplitDebuginfo, TlsModel};
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use std::collections::{BTreeMap, BTreeSet};
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use std::iter::FromIterator;
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use std::num::NonZeroUsize;
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@ -74,6 +75,27 @@ fn mk_map<K: Ord, V>(entries: Vec<(K, V)>) -> BTreeMap<K, V> {
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BTreeMap::from_iter(entries.into_iter())
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}
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fn assert_same_clone(x: &Options) {
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assert_eq!(x.dep_tracking_hash(true), x.clone().dep_tracking_hash(true));
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assert_eq!(x.dep_tracking_hash(false), x.clone().dep_tracking_hash(false));
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}
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fn assert_same_hash(x: &Options, y: &Options) {
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assert_eq!(x.dep_tracking_hash(true), y.dep_tracking_hash(true));
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assert_eq!(x.dep_tracking_hash(false), y.dep_tracking_hash(false));
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// Check clone
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assert_same_clone(x);
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assert_same_clone(y);
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}
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fn assert_different_hash(x: &Options, y: &Options) {
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assert_ne!(x.dep_tracking_hash(true), y.dep_tracking_hash(true));
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assert_ne!(x.dep_tracking_hash(false), y.dep_tracking_hash(false));
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// Check clone
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assert_same_clone(x);
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assert_same_clone(y);
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}
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// When the user supplies --test we should implicitly supply --cfg test
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#[test]
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fn test_switch_implies_cfg_test() {
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@ -130,14 +152,9 @@ fn test_output_types_tracking_hash_different_paths() {
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v2.output_types = OutputTypes::new(&[(OutputType::Exe, Some(PathBuf::from("/some/thing")))]);
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v3.output_types = OutputTypes::new(&[(OutputType::Exe, None)]);
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assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
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assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
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assert!(v2.dep_tracking_hash() != v3.dep_tracking_hash());
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// Check clone
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assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
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assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
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assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
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assert_different_hash(&v1, &v2);
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assert_different_hash(&v1, &v3);
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assert_different_hash(&v2, &v3);
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}
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#[test]
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@ -155,10 +172,7 @@ fn test_output_types_tracking_hash_different_construction_order() {
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(OutputType::Exe, Some(PathBuf::from("./some/thing"))),
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]);
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assert_eq!(v1.dep_tracking_hash(), v2.dep_tracking_hash());
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// Check clone
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assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
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assert_same_hash(&v1, &v2);
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}
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#[test]
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@ -182,14 +196,9 @@ fn test_externs_tracking_hash_different_construction_order() {
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(String::from("d"), new_public_extern_entry(vec!["f", "e"])),
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]));
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assert_eq!(v1.dep_tracking_hash(), v2.dep_tracking_hash());
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assert_eq!(v1.dep_tracking_hash(), v3.dep_tracking_hash());
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assert_eq!(v2.dep_tracking_hash(), v3.dep_tracking_hash());
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// Check clone
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assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
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assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
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assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
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assert_same_hash(&v1, &v2);
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assert_same_hash(&v1, &v3);
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assert_same_hash(&v2, &v3);
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}
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#[test]
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@ -219,14 +228,9 @@ fn test_lints_tracking_hash_different_values() {
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(String::from("d"), Level::Deny),
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];
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assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
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assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
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assert!(v2.dep_tracking_hash() != v3.dep_tracking_hash());
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// Check clone
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assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
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assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
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assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
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assert_different_hash(&v1, &v2);
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assert_different_hash(&v1, &v3);
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assert_different_hash(&v2, &v3);
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}
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#[test]
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@ -248,11 +252,7 @@ fn test_lints_tracking_hash_different_construction_order() {
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(String::from("d"), Level::Forbid),
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];
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assert_eq!(v1.dep_tracking_hash(), v2.dep_tracking_hash());
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// Check clone
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assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
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assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
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assert_same_hash(&v1, &v2);
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}
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#[test]
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@ -292,15 +292,9 @@ fn test_search_paths_tracking_hash_different_order() {
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v4.search_paths.push(SearchPath::from_cli_opt("dependency=ghi", JSON));
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v4.search_paths.push(SearchPath::from_cli_opt("framework=jkl", JSON));
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assert!(v1.dep_tracking_hash() == v2.dep_tracking_hash());
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assert!(v1.dep_tracking_hash() == v3.dep_tracking_hash());
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assert!(v1.dep_tracking_hash() == v4.dep_tracking_hash());
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// Check clone
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assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
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assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
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assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
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assert_eq!(v4.dep_tracking_hash(), v4.clone().dep_tracking_hash());
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assert_same_hash(&v1, &v2);
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assert_same_hash(&v1, &v3);
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assert_same_hash(&v1, &v4);
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}
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#[test]
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@ -338,15 +332,9 @@ fn test_native_libs_tracking_hash_different_values() {
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(String::from("c"), None, NativeLibKind::Unspecified),
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];
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assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
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assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
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assert!(v1.dep_tracking_hash() != v4.dep_tracking_hash());
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// Check clone
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assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
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assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
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assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
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assert_eq!(v4.dep_tracking_hash(), v4.clone().dep_tracking_hash());
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assert_different_hash(&v1, &v2);
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assert_different_hash(&v1, &v3);
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assert_different_hash(&v1, &v4);
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}
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#[test]
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@ -374,14 +362,9 @@ fn test_native_libs_tracking_hash_different_order() {
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(String::from("b"), None, NativeLibKind::Framework),
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];
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assert!(v1.dep_tracking_hash() == v2.dep_tracking_hash());
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assert!(v1.dep_tracking_hash() == v3.dep_tracking_hash());
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assert!(v2.dep_tracking_hash() == v3.dep_tracking_hash());
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// Check clone
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assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
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assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
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assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
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assert_same_hash(&v1, &v2);
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assert_same_hash(&v1, &v3);
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assert_same_hash(&v2, &v3);
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}
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#[test]
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@ -393,7 +376,7 @@ fn test_codegen_options_tracking_hash() {
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($name: ident, $non_default_value: expr) => {
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assert_ne!(opts.cg.$name, $non_default_value);
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opts.cg.$name = $non_default_value;
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assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
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assert_same_hash(&reference, &opts);
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};
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}
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@ -419,7 +402,7 @@ fn test_codegen_options_tracking_hash() {
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opts = reference.clone();
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assert_ne!(opts.cg.$name, $non_default_value);
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opts.cg.$name = $non_default_value;
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assert_ne!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
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assert_different_hash(&reference, &opts);
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};
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}
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@ -456,6 +439,28 @@ fn test_codegen_options_tracking_hash() {
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tracked!(target_feature, String::from("all the features, all of them"));
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}
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#[test]
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fn test_top_level_options_tracked_no_crate() {
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let reference = Options::default();
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let mut opts;
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macro_rules! tracked {
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($name: ident, $non_default_value: expr) => {
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opts = reference.clone();
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assert_ne!(opts.$name, $non_default_value);
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opts.$name = $non_default_value;
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// The crate hash should be the same
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assert_eq!(reference.dep_tracking_hash(true), opts.dep_tracking_hash(true));
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// The incremental hash should be different
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assert_ne!(reference.dep_tracking_hash(false), opts.dep_tracking_hash(false));
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};
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}
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// Make sure that changing a [TRACKED_NO_CRATE_HASH] option leaves the crate hash unchanged but changes the incremental hash.
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// This list is in alphabetical order.
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tracked!(remap_path_prefix, vec![("/home/bors/rust".into(), "src".into())]);
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}
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#[test]
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fn test_debugging_options_tracking_hash() {
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let reference = Options::default();
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@ -465,7 +470,7 @@ fn test_debugging_options_tracking_hash() {
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($name: ident, $non_default_value: expr) => {
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assert_ne!(opts.debugging_opts.$name, $non_default_value);
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opts.debugging_opts.$name = $non_default_value;
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assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
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assert_same_hash(&reference, &opts);
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};
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}
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@ -537,7 +542,7 @@ fn test_debugging_options_tracking_hash() {
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opts = reference.clone();
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assert_ne!(opts.debugging_opts.$name, $non_default_value);
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opts.debugging_opts.$name = $non_default_value;
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assert_ne!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
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assert_different_hash(&reference, &opts);
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};
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}
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@ -943,7 +943,7 @@ pub(super) fn index_hir<'tcx>(tcx: TyCtxt<'tcx>, cnum: CrateNum) -> &'tcx Indexe
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intravisit::walk_crate(&mut collector, tcx.untracked_crate);
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let crate_disambiguator = tcx.sess.local_crate_disambiguator();
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let cmdline_args = tcx.sess.opts.dep_tracking_hash();
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let cmdline_args = tcx.sess.opts.dep_tracking_hash(true);
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collector.finalize_and_compute_crate_hash(crate_disambiguator, &*tcx.cstore, cmdline_args)
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};
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@ -2374,6 +2374,7 @@ crate mod dep_tracking {
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impl_dep_tracking_hash_for_sortable_vec_of!(String);
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impl_dep_tracking_hash_for_sortable_vec_of!(PathBuf);
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impl_dep_tracking_hash_for_sortable_vec_of!((PathBuf, PathBuf));
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impl_dep_tracking_hash_for_sortable_vec_of!(CrateType);
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impl_dep_tracking_hash_for_sortable_vec_of!((String, lint::Level));
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impl_dep_tracking_hash_for_sortable_vec_of!((String, Option<String>, NativeLibKind));
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@ -20,21 +20,41 @@ use std::num::NonZeroUsize;
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use std::path::PathBuf;
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use std::str;
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macro_rules! hash_option {
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($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, [UNTRACKED]) => {{}};
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($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, [TRACKED]) => {{
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macro_rules! insert {
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($opt_name:ident, $opt_expr:expr, $sub_hashes:expr) => {
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if $sub_hashes
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.insert(stringify!($opt_name), $opt_expr as &dyn dep_tracking::DepTrackingHash)
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.is_some()
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{
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panic!("duplicate key in CLI DepTrackingHash: {}", stringify!($opt_name))
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}
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};
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}
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macro_rules! hash_opt {
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($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, $_for_crate_hash: ident, [UNTRACKED]) => {{}};
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($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, $_for_crate_hash: ident, [TRACKED]) => {{ insert!($opt_name, $opt_expr, $sub_hashes) }};
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($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, $for_crate_hash: ident, [TRACKED_NO_CRATE_HASH]) => {{
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if !$for_crate_hash {
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insert!($opt_name, $opt_expr, $sub_hashes)
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}
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}};
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($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, $_for_crate_hash: ident, [SUBSTRUCT]) => {{}};
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}
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macro_rules! hash_substruct {
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($opt_name:ident, $opt_expr:expr, $error_format:expr, $for_crate_hash:expr, $hasher:expr, [UNTRACKED]) => {{}};
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($opt_name:ident, $opt_expr:expr, $error_format:expr, $for_crate_hash:expr, $hasher:expr, [TRACKED]) => {{}};
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($opt_name:ident, $opt_expr:expr, $error_format:expr, $for_crate_hash:expr, $hasher:expr, [TRACKED_NO_CRATE_HASH]) => {{}};
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($opt_name:ident, $opt_expr:expr, $error_format:expr, $for_crate_hash:expr, $hasher:expr, [SUBSTRUCT]) => {
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use crate::config::dep_tracking::DepTrackingHash;
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$opt_expr.dep_tracking_hash($for_crate_hash, $error_format).hash($hasher, $error_format);
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};
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}
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macro_rules! top_level_options {
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(pub struct Options { $(
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$opt:ident : $t:ty [$dep_tracking_marker:ident $($warn_val:expr, $warn_text:expr)*],
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$opt:ident : $t:ty [$dep_tracking_marker:ident],
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)* } ) => (
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#[derive(Clone)]
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pub struct Options {
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@ -42,20 +62,27 @@ macro_rules! top_level_options {
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}
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impl Options {
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pub fn dep_tracking_hash(&self) -> u64 {
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pub fn dep_tracking_hash(&self, for_crate_hash: bool) -> u64 {
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let mut sub_hashes = BTreeMap::new();
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$({
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hash_option!($opt,
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&self.$opt,
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&mut sub_hashes,
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[$dep_tracking_marker $($warn_val,
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$warn_text,
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self.error_format)*]);
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hash_opt!($opt,
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&self.$opt,
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&mut sub_hashes,
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for_crate_hash,
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[$dep_tracking_marker]);
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})*
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let mut hasher = DefaultHasher::new();
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dep_tracking::stable_hash(sub_hashes,
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&mut hasher,
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self.error_format);
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$({
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hash_substruct!($opt,
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&self.$opt,
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self.error_format,
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for_crate_hash,
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&mut hasher,
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[$dep_tracking_marker]);
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})*
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hasher.finish()
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}
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}
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@ -72,9 +99,16 @@ macro_rules! top_level_options {
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// A change in the given field will cause the compiler to completely clear the
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// incremental compilation cache before proceeding.
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//
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// [TRACKED_NO_CRATE_HASH]
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// Same as [TRACKED], but will not affect the crate hash. This is useful for options that only
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// affect the incremental cache.
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//
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// [UNTRACKED]
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// Incremental compilation is not influenced by this option.
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//
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// [SUBSTRUCT]
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// Second-level sub-structs containing more options.
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//
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// If you add a new option to this struct or one of the sub-structs like
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// `CodegenOptions`, think about how it influences incremental compilation. If in
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// doubt, specify [TRACKED], which is always "correct" but might lead to
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@ -106,12 +140,12 @@ top_level_options!(
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// directory to store intermediate results.
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incremental: Option<PathBuf> [UNTRACKED],
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|
||||
debugging_opts: DebuggingOptions [TRACKED],
|
||||
debugging_opts: DebuggingOptions [SUBSTRUCT],
|
||||
prints: Vec<PrintRequest> [UNTRACKED],
|
||||
// Determines which borrow checker(s) to run. This is the parsed, sanitized
|
||||
// version of `debugging_opts.borrowck`, which is just a plain string.
|
||||
borrowck_mode: BorrowckMode [UNTRACKED],
|
||||
cg: CodegenOptions [TRACKED],
|
||||
cg: CodegenOptions [SUBSTRUCT],
|
||||
externs: Externs [UNTRACKED],
|
||||
extern_dep_specs: ExternDepSpecs [UNTRACKED],
|
||||
crate_name: Option<String> [TRACKED],
|
||||
@ -139,7 +173,7 @@ top_level_options!(
|
||||
cli_forced_thinlto_off: bool [UNTRACKED],
|
||||
|
||||
// Remap source path prefixes in all output (messages, object files, debug, etc.).
|
||||
remap_path_prefix: Vec<(PathBuf, PathBuf)> [UNTRACKED],
|
||||
remap_path_prefix: Vec<(PathBuf, PathBuf)> [TRACKED_NO_CRATE_HASH],
|
||||
|
||||
edition: Edition [TRACKED],
|
||||
|
||||
@ -169,7 +203,7 @@ macro_rules! options {
|
||||
$($opt:ident : $t:ty = (
|
||||
$init:expr,
|
||||
$parse:ident,
|
||||
[$dep_tracking_marker:ident $(($dep_warn_val:expr, $dep_warn_text:expr))*],
|
||||
[$dep_tracking_marker:ident],
|
||||
$desc:expr)
|
||||
),* ,) =>
|
||||
(
|
||||
@ -219,18 +253,21 @@ macro_rules! options {
|
||||
return op;
|
||||
}
|
||||
|
||||
impl dep_tracking::DepTrackingHash for $struct_name {
|
||||
fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType) {
|
||||
impl $struct_name {
|
||||
fn dep_tracking_hash(&self, for_crate_hash: bool, error_format: ErrorOutputType) -> u64 {
|
||||
let mut sub_hashes = BTreeMap::new();
|
||||
$({
|
||||
hash_option!($opt,
|
||||
&self.$opt,
|
||||
&mut sub_hashes,
|
||||
[$dep_tracking_marker $($dep_warn_val,
|
||||
$dep_warn_text,
|
||||
error_format)*]);
|
||||
hash_opt!($opt,
|
||||
&self.$opt,
|
||||
&mut sub_hashes,
|
||||
for_crate_hash,
|
||||
[$dep_tracking_marker]);
|
||||
})*
|
||||
dep_tracking::stable_hash(sub_hashes, hasher, error_format);
|
||||
let mut hasher = DefaultHasher::new();
|
||||
dep_tracking::stable_hash(sub_hashes,
|
||||
&mut hasher,
|
||||
error_format);
|
||||
hasher.finish()
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user