]> git.lizzy.rs Git - rust.git/blobdiff - compiler/rustc_query_impl/src/plumbing.rs
Rollup merge of #101423 - mkroening:hermit-warnings, r=sanxiyn
[rust.git] / compiler / rustc_query_impl / src / plumbing.rs
index 3483c40396b595c26acda0f7f3b0f8169d9cd34b..1e375deb20d1d5d33ffce1525211fadf7fb43511 100644 (file)
@@ -7,15 +7,18 @@
 use rustc_data_structures::stable_hasher::{HashStable, StableHasher};
 use rustc_data_structures::sync::Lock;
 use rustc_errors::{Diagnostic, Handler};
-use rustc_middle::dep_graph::{self, DepKind, DepNode, DepNodeIndex, SerializedDepNodeIndex};
+use rustc_middle::dep_graph::{
+    self, DepKind, DepKindStruct, DepNode, DepNodeIndex, SerializedDepNodeIndex,
+};
 use rustc_middle::ty::tls::{self, ImplicitCtxt};
 use rustc_middle::ty::{self, TyCtxt};
 use rustc_query_system::dep_graph::{DepNodeParams, HasDepContext};
 use rustc_query_system::ich::StableHashingContext;
 use rustc_query_system::query::{
-    force_query, QueryContext, QueryDescription, QueryJobId, QueryMap, QuerySideEffects,
-    QueryStackFrame,
+    force_query, QueryConfig, QueryContext, QueryDescription, QueryJobId, QueryMap,
+    QuerySideEffects, QueryStackFrame,
 };
+use rustc_query_system::Value;
 use std::any::Any;
 use std::num::NonZeroU64;
 use thin_vec::ThinVec;
@@ -172,21 +175,17 @@ pub fn try_print_query_stack(
 }
 
 macro_rules! handle_cycle_error {
-    ([][$tcx: expr, $error:expr]) => {{
-        $error.emit();
-        Value::from_cycle_error($tcx)
+    ([]) => {{
+        rustc_query_system::HandleCycleError::Error
     }};
-    ([(fatal_cycle) $($rest:tt)*][$tcx:expr, $error:expr]) => {{
-        $error.emit();
-        $tcx.sess.abort_if_errors();
-        unreachable!()
+    ([(fatal_cycle) $($rest:tt)*]) => {{
+        rustc_query_system::HandleCycleError::Fatal
     }};
-    ([(cycle_delay_bug) $($rest:tt)*][$tcx:expr, $error:expr]) => {{
-        $error.delay_as_bug();
-        Value::from_cycle_error($tcx)
+    ([(cycle_delay_bug) $($rest:tt)*]) => {{
+        rustc_query_system::HandleCycleError::DelayBug
     }};
-    ([$other:tt $($modifiers:tt)*][$($args:tt)*]) => {
-        handle_cycle_error!([$($modifiers)*][$($args)*])
+    ([$other:tt $($modifiers:tt)*]) => {
+        handle_cycle_error!([$($modifiers)*])
     };
 }
 
@@ -299,19 +298,18 @@ pub(crate) fn create_query_frame<
     QueryStackFrame::new(name, description, span, def_kind, hash)
 }
 
-pub(crate) fn try_load_from_on_disk_cache<'tcx, K: DepNodeParams<TyCtxt<'tcx>>, V>(
-    tcx: TyCtxt<'tcx>,
-    dep_node: DepNode,
-    cache_on_disk: fn(TyCtxt<'tcx>, &K) -> bool,
-    do_query: fn(TyCtxt<'tcx>, K) -> V,
-) {
+fn try_load_from_on_disk_cache<'tcx, Q>(tcx: TyCtxt<'tcx>, dep_node: DepNode)
+where
+    Q: QueryDescription<QueryCtxt<'tcx>>,
+    Q::Key: DepNodeParams<TyCtxt<'tcx>>,
+{
     debug_assert!(tcx.dep_graph.is_green(&dep_node));
 
-    let key = K::recover(tcx, &dep_node).unwrap_or_else(|| {
+    let key = Q::Key::recover(tcx, &dep_node).unwrap_or_else(|| {
         panic!("Failed to recover key for {:?} with hash {}", dep_node, dep_node.hash)
     });
-    if cache_on_disk(tcx, &key) {
-        let _ = do_query(tcx, key);
+    if Q::cache_on_disk(tcx, &key) {
+        let _ = Q::execute_query(tcx, key);
     }
 }
 
@@ -319,6 +317,7 @@ fn force_from_dep_node<'tcx, Q>(tcx: TyCtxt<'tcx>, dep_node: DepNode) -> bool
 where
     Q: QueryDescription<QueryCtxt<'tcx>>,
     Q::Key: DepNodeParams<TyCtxt<'tcx>>,
+    Q::Value: Value<TyCtxt<'tcx>>,
 {
     if let Some(key) = Q::Key::recover(tcx, &dep_node) {
         #[cfg(debug_assertions)]
@@ -331,6 +330,35 @@ fn force_from_dep_node<'tcx, Q>(tcx: TyCtxt<'tcx>, dep_node: DepNode) -> bool
     }
 }
 
+pub(crate) fn query_callback<'tcx, Q: QueryConfig>(
+    is_anon: bool,
+    is_eval_always: bool,
+) -> DepKindStruct<'tcx>
+where
+    Q: QueryDescription<QueryCtxt<'tcx>>,
+    Q::Key: DepNodeParams<TyCtxt<'tcx>>,
+{
+    let fingerprint_style = Q::Key::fingerprint_style();
+
+    if is_anon || !fingerprint_style.reconstructible() {
+        return DepKindStruct {
+            is_anon,
+            is_eval_always,
+            fingerprint_style,
+            force_from_dep_node: None,
+            try_load_from_on_disk_cache: None,
+        };
+    }
+
+    DepKindStruct {
+        is_anon,
+        is_eval_always,
+        fingerprint_style,
+        force_from_dep_node: Some(force_from_dep_node::<Q>),
+        try_load_from_on_disk_cache: Some(try_load_from_on_disk_cache::<Q>),
+    }
+}
+
 // NOTE: `$V` isn't used here, but we still need to match on it so it can be passed to other macros
 // invoked by `rustc_query_append`.
 macro_rules! define_queries {
@@ -388,23 +416,25 @@ fn make_vtable(tcx: QueryCtxt<'tcx>, key: &Self::Key) ->
                     depth_limit: depth_limit!([$($modifiers)*]),
                     dep_kind: dep_graph::DepKind::$name,
                     hash_result: hash_result!([$($modifiers)*]),
-                    handle_cycle_error: |tcx, mut error| handle_cycle_error!([$($modifiers)*][tcx, error]),
+                    handle_cycle_error: handle_cycle_error!([$($modifiers)*]),
                     compute,
                     cache_on_disk,
                     try_load_from_disk: Self::TRY_LOAD_FROM_DISK,
                 }
             }
+
+            fn execute_query(tcx: TyCtxt<'tcx>, k: Self::Key) -> Self::Stored {
+                tcx.$name(k)
+            }
         })*
 
         #[allow(nonstandard_style)]
         mod query_callbacks {
             use super::*;
-            use rustc_query_system::dep_graph::DepNodeParams;
-            use rustc_query_system::query::QueryDescription;
             use rustc_query_system::dep_graph::FingerprintStyle;
 
             // We use this for most things when incr. comp. is turned off.
-            pub fn Null() -> DepKindStruct {
+            pub fn Null<'tcx>() -> DepKindStruct<'tcx> {
                 DepKindStruct {
                     is_anon: false,
                     is_eval_always: false,
@@ -415,7 +445,7 @@ pub fn Null() -> DepKindStruct {
             }
 
             // We use this for the forever-red node.
-            pub fn Red() -> DepKindStruct {
+            pub fn Red<'tcx>() -> DepKindStruct<'tcx> {
                 DepKindStruct {
                     is_anon: false,
                     is_eval_always: false,
@@ -425,7 +455,7 @@ pub fn Red() -> DepKindStruct {
                 }
             }
 
-            pub fn TraitSelect() -> DepKindStruct {
+            pub fn TraitSelect<'tcx>() -> DepKindStruct<'tcx> {
                 DepKindStruct {
                     is_anon: true,
                     is_eval_always: false,
@@ -435,7 +465,7 @@ pub fn TraitSelect() -> DepKindStruct {
                 }
             }
 
-            pub fn CompileCodegenUnit() -> DepKindStruct {
+            pub fn CompileCodegenUnit<'tcx>() -> DepKindStruct<'tcx> {
                 DepKindStruct {
                     is_anon: false,
                     is_eval_always: false,
@@ -445,7 +475,7 @@ pub fn CompileCodegenUnit() -> DepKindStruct {
                 }
             }
 
-            pub fn CompileMonoItem() -> DepKindStruct {
+            pub fn CompileMonoItem<'tcx>() -> DepKindStruct<'tcx> {
                 DepKindStruct {
                     is_anon: false,
                     is_eval_always: false,
@@ -455,36 +485,15 @@ pub fn CompileMonoItem() -> DepKindStruct {
                 }
             }
 
-            $(pub(crate) fn $name()-> DepKindStruct {
-                let is_anon = is_anon!([$($modifiers)*]);
-                let is_eval_always = is_eval_always!([$($modifiers)*]);
-
-                let fingerprint_style =
-                    <<queries::$name<'_> as QueryConfig>::Key as DepNodeParams<TyCtxt<'_>>>::fingerprint_style();
-
-                if is_anon || !fingerprint_style.reconstructible() {
-                    return DepKindStruct {
-                        is_anon,
-                        is_eval_always,
-                        fingerprint_style,
-                        force_from_dep_node: None,
-                        try_load_from_on_disk_cache: None,
-                    }
-                }
-
-                DepKindStruct {
-                    is_anon,
-                    is_eval_always,
-                    fingerprint_style,
-                    force_from_dep_node: Some(|tcx, dep_node| $crate::plumbing::force_from_dep_node::<queries::$name<'_>>(tcx, dep_node)),
-                    try_load_from_on_disk_cache: Some(|tcx, key| $crate::plumbing::try_load_from_on_disk_cache::<
-                        <queries::$name<'_> as QueryConfig>::Key, _
-                    >(tcx, key, queries::$name::cache_on_disk, TyCtxt::$name)),
-                }
+            $(pub(crate) fn $name<'tcx>()-> DepKindStruct<'tcx> {
+                $crate::plumbing::query_callback::<queries::$name<'tcx>>(
+                    is_anon!([$($modifiers)*]),
+                    is_eval_always!([$($modifiers)*]),
+                )
             })*
         }
 
-        pub fn query_callbacks<'tcx>(arena: &'tcx Arena<'tcx>) -> &'tcx [DepKindStruct] {
+        pub fn query_callbacks<'tcx>(arena: &'tcx Arena<'tcx>) -> &'tcx [DepKindStruct<'tcx>] {
             arena.alloc_from_iter(make_dep_kind_array!(query_callbacks))
         }
     }