Auto merge of #51133 - spastorino:make_borrowck_use_output, r=nikomatsakis
Make borrowck use polonius output
This commit is contained in:
commit
59c0f5913d
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@ -557,6 +557,11 @@ dependencies = [
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"winapi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "datafrog"
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version = "0.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "debug_unreachable"
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version = "0.1.1"
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@ -1450,8 +1455,12 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "polonius-engine"
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version = "0.1.1"
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version = "0.4.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"datafrog 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"rustc-hash 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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[[package]]
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name = "precomputed-hash"
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@ -1775,7 +1784,7 @@ dependencies = [
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"jobserver 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
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"lazy_static 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"polonius-engine 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"polonius-engine 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"proc_macro 0.0.0",
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"rustc_apfloat 0.0.0",
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"rustc_data_structures 0.0.0",
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@ -2159,10 +2168,11 @@ dependencies = [
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"arena 0.0.0",
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"bitflags 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"byteorder 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"either 1.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"graphviz 0.0.0",
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"log 0.4.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"log_settings 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"polonius-engine 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"polonius-engine 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"rustc 0.0.0",
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"rustc_apfloat 0.0.0",
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"rustc_data_structures 0.0.0",
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@ -3069,6 +3079,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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"checksum crypto-hash 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "09de9ee0fc255ace04c7fa0763c9395a945c37c8292bb554f8d48361d1dcf1b4"
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"checksum curl 0.4.12 (registry+https://github.com/rust-lang/crates.io-index)" = "aaf20bbe084f285f215eef2165feed70d6b75ba29cad24469badb853a4a287d0"
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"checksum curl-sys 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "71c63a540a9ee4e15e56c3ed9b11a2f121239b9f6d7b7fe30f616e048148df9a"
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"checksum datafrog 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "16d724bf4ffe77cdceeecd461009b5f8d9e23c5d645d68bedb4586bf43e7e142"
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"checksum debug_unreachable 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "9a032eac705ca39214d169f83e3d3da290af06d8d1d344d1baad2fd002dca4b3"
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"checksum derive-new 0.5.4 (registry+https://github.com/rust-lang/crates.io-index)" = "ceed73957c449214f8440eec8ad7fa282b67dc9eacbb24a3085b15d60397a17a"
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"checksum diff 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)" = "3c2b69f912779fbb121ceb775d74d51e915af17aaebc38d28a592843a2dd0a3a"
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@ -3162,7 +3173,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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"checksum phf_generator 0.7.21 (registry+https://github.com/rust-lang/crates.io-index)" = "6b07ffcc532ccc85e3afc45865469bf5d9e4ef5bfcf9622e3cfe80c2d275ec03"
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"checksum phf_shared 0.7.21 (registry+https://github.com/rust-lang/crates.io-index)" = "07e24b0ca9643bdecd0632f2b3da6b1b89bbb0030e0b992afc1113b23a7bc2f2"
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"checksum pkg-config 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "3a8b4c6b8165cd1a1cd4b9b120978131389f64bdaf456435caa41e630edba903"
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"checksum polonius-engine 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "6201ffe79e3da53bd065fbec2a9b391e5a0dc21038b39bb300612ddc658eb7ee"
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"checksum polonius-engine 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "9385a6d8f8ff6fd7e48a803c6a77fb89cc929dc7e2af6bf972494bbc8ff8b9e4"
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"checksum precomputed-hash 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)" = "925383efa346730478fb4838dbe9137d2a47675ad789c546d150a6e1dd4ab31c"
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"checksum pretty_assertions 0.5.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3a029430f0d744bc3d15dd474d591bed2402b645d024583082b9f63bb936dac6"
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"checksum proc-macro2 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "49b6a521dc81b643e9a51e0d1cf05df46d5a2f3c0280ea72bcb68276ba64a118"
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@ -16,7 +16,7 @@ graphviz = { path = "../libgraphviz" }
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jobserver = "0.1"
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lazy_static = "1.0.0"
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log = { version = "0.4", features = ["release_max_level_info", "std"] }
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polonius-engine = "0.1.1"
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polonius-engine = "0.4.0"
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proc_macro = { path = "../libproc_macro" }
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rustc_apfloat = { path = "../librustc_apfloat" }
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rustc_target = { path = "../librustc_target" }
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@ -1296,6 +1296,8 @@ options! {DebuggingOptions, DebuggingSetter, basic_debugging_options,
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"dump facts from NLL analysis into side files"),
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disable_nll_user_type_assert: bool = (false, parse_bool, [UNTRACKED],
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"disable user provided type assertion in NLL"),
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polonius: bool = (false, parse_bool, [UNTRACKED],
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"enable polonius-based borrow-checker"),
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codegen_time_graph: bool = (false, parse_bool, [UNTRACKED],
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"generate a graphical HTML report of time spent in codegen and LLVM"),
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thinlto: Option<bool> = (None, parse_opt_bool, [TRACKED],
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@ -11,10 +11,11 @@ crate-type = ["dylib"]
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[dependencies]
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arena = { path = "../libarena" }
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bitflags = "1.0"
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either = "1.5.0"
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graphviz = { path = "../libgraphviz" }
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log = "0.4"
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log_settings = "0.1.1"
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polonius-engine = "0.1.1"
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polonius-engine = "0.4.0"
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rustc = { path = "../librustc" }
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rustc_target = { path = "../librustc_target" }
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rustc_data_structures = { path = "../librustc_data_structures" }
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@ -14,15 +14,22 @@
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//! but is not as ugly as it is right now.
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use rustc::mir::{BasicBlock, Location};
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use rustc::ty::RegionVid;
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use rustc_data_structures::indexed_set::Iter;
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use dataflow::{MaybeInitializedPlaces, MaybeUninitializedPlaces};
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use dataflow::{EverInitializedPlaces, MovingOutStatements};
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use dataflow::{Borrows};
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use dataflow::{FlowAtLocation, FlowsAtLocation};
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use dataflow::move_paths::HasMoveData;
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use borrow_check::location::LocationIndex;
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use polonius_engine::Output;
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use dataflow::move_paths::indexes::BorrowIndex;
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use dataflow::move_paths::HasMoveData;
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use dataflow::Borrows;
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use dataflow::{EverInitializedPlaces, MovingOutStatements};
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use dataflow::{FlowAtLocation, FlowsAtLocation};
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use dataflow::{MaybeInitializedPlaces, MaybeUninitializedPlaces};
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use either::Either;
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use std::fmt;
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use std::rc::Rc;
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// (forced to be `pub` due to its use as an associated type below.)
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crate struct Flows<'b, 'gcx: 'tcx, 'tcx: 'b> {
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@ -31,6 +38,9 @@ crate struct Flows<'b, 'gcx: 'tcx, 'tcx: 'b> {
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pub uninits: FlowAtLocation<MaybeUninitializedPlaces<'b, 'gcx, 'tcx>>,
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pub move_outs: FlowAtLocation<MovingOutStatements<'b, 'gcx, 'tcx>>,
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pub ever_inits: FlowAtLocation<EverInitializedPlaces<'b, 'gcx, 'tcx>>,
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/// Polonius Output
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pub polonius_output: Option<Rc<Output<RegionVid, BorrowIndex, LocationIndex>>>,
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}
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impl<'b, 'gcx, 'tcx> Flows<'b, 'gcx, 'tcx> {
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@ -40,6 +50,7 @@ impl<'b, 'gcx, 'tcx> Flows<'b, 'gcx, 'tcx> {
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uninits: FlowAtLocation<MaybeUninitializedPlaces<'b, 'gcx, 'tcx>>,
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move_outs: FlowAtLocation<MovingOutStatements<'b, 'gcx, 'tcx>>,
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ever_inits: FlowAtLocation<EverInitializedPlaces<'b, 'gcx, 'tcx>>,
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polonius_output: Option<Rc<Output<RegionVid, BorrowIndex, LocationIndex>>>,
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) -> Self {
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Flows {
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borrows,
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@ -47,11 +58,19 @@ impl<'b, 'gcx, 'tcx> Flows<'b, 'gcx, 'tcx> {
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uninits,
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move_outs,
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ever_inits,
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polonius_output,
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}
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}
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crate fn borrows_in_scope(&self) -> impl Iterator<Item = BorrowIndex> + '_ {
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self.borrows.iter_incoming()
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crate fn borrows_in_scope(
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&self,
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location: LocationIndex,
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) -> impl Iterator<Item = BorrowIndex> + '_ {
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if let Some(ref polonius) = self.polonius_output {
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Either::Left(polonius.errors_at(location).iter().cloned())
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} else {
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Either::Right(self.borrows.iter_incoming())
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}
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}
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crate fn with_outgoing_borrows(&self, op: impl FnOnce(Iter<BorrowIndex>)) {
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@ -66,7 +85,7 @@ macro_rules! each_flow {
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FlowAtLocation::$meth(&mut $this.uninits, $arg);
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FlowAtLocation::$meth(&mut $this.move_outs, $arg);
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FlowAtLocation::$meth(&mut $this.ever_inits, $arg);
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}
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};
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}
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impl<'b, 'gcx, 'tcx> FlowsAtLocation for Flows<'b, 'gcx, 'tcx> {
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@ -134,8 +153,7 @@ impl<'b, 'gcx, 'tcx> fmt::Display for Flows<'b, 'gcx, 'tcx> {
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s.push_str(", ");
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};
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saw_one = true;
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let move_path =
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&self.uninits.operator().move_data().move_paths[mpi_uninit];
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let move_path = &self.uninits.operator().move_data().move_paths[mpi_uninit];
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s.push_str(&format!("{}", move_path));
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});
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s.push_str("] ");
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@ -159,8 +177,7 @@ impl<'b, 'gcx, 'tcx> fmt::Display for Flows<'b, 'gcx, 'tcx> {
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s.push_str(", ");
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};
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saw_one = true;
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let ever_init =
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&self.ever_inits.operator().move_data().inits[mpi_ever_init];
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let ever_init = &self.ever_inits.operator().move_data().inits[mpi_ever_init];
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s.push_str(&format!("{:?}", ever_init));
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});
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s.push_str("]");
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@ -198,7 +198,7 @@ fn do_mir_borrowck<'a, 'gcx, 'tcx>(
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let borrow_set = Rc::new(BorrowSet::build(tcx, mir));
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// If we are in non-lexical mode, compute the non-lexical lifetimes.
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let (regioncx, opt_closure_req) = nll::compute_regions(
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let (regioncx, polonius_output, opt_closure_req) = nll::compute_regions(
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infcx,
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def_id,
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free_regions,
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@ -259,6 +259,7 @@ fn do_mir_borrowck<'a, 'gcx, 'tcx>(
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flow_uninits,
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flow_move_outs,
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flow_ever_inits,
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polonius_output,
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);
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mbcx.analyze_results(&mut state); // entry point for DataflowResultsConsumer
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@ -936,6 +937,8 @@ impl<'cx, 'gcx, 'tcx> MirBorrowckCtxt<'cx, 'gcx, 'tcx> {
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let mut error_reported = false;
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let tcx = self.tcx;
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let mir = self.mir;
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let location_table = &LocationTable::new(mir);
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let location = location_table.start_index(context.loc);
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let borrow_set = self.borrow_set.clone();
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each_borrow_involving_path(
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self,
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|
@ -944,7 +947,7 @@ impl<'cx, 'gcx, 'tcx> MirBorrowckCtxt<'cx, 'gcx, 'tcx> {
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context,
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(sd, place_span.0),
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&borrow_set,
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flow_state.borrows_in_scope(),
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flow_state.borrows_in_scope(location),
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|this, borrow_index, borrow|
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match (rw, borrow.kind) {
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// Obviously an activation is compatible with its own
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|
|
|
@ -9,8 +9,9 @@
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// except according to those terms.
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use borrow_check::borrow_set::BorrowSet;
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use borrow_check::location::LocationTable;
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use borrow_check::location::{LocationIndex, LocationTable};
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use borrow_check::nll::facts::AllFactsExt;
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use dataflow::indexes::BorrowIndex;
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use dataflow::move_paths::MoveData;
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use dataflow::FlowAtLocation;
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use dataflow::MaybeInitializedPlaces;
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|
@ -23,22 +24,24 @@ use std::collections::BTreeSet;
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use std::fmt::Debug;
|
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use std::io;
|
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use std::path::PathBuf;
|
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use std::rc::Rc;
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use transform::MirSource;
|
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use util::liveness::{LivenessResults, LocalSet};
|
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|
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use self::mir_util::PassWhere;
|
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use polonius_engine::{Algorithm, Output};
|
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use util as mir_util;
|
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use util::pretty::{self, ALIGN};
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|
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mod constraint_generation;
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pub mod explain_borrow;
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mod facts;
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mod invalidation;
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crate mod region_infer;
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mod renumber;
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mod subtype_constraint_generation;
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crate mod type_check;
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mod universal_regions;
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mod invalidation;
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use self::facts::AllFacts;
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use self::region_infer::RegionInferenceContext;
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|
@ -83,6 +86,7 @@ pub(in borrow_check) fn compute_regions<'cx, 'gcx, 'tcx>(
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borrow_set: &BorrowSet<'tcx>,
|
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) -> (
|
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RegionInferenceContext<'tcx>,
|
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Option<Rc<Output<RegionVid, BorrowIndex, LocationIndex>>>,
|
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Option<ClosureRegionRequirements<'gcx>>,
|
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) {
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// Run the MIR type-checker.
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|
@ -98,7 +102,9 @@ pub(in borrow_check) fn compute_regions<'cx, 'gcx, 'tcx>(
|
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move_data,
|
||||
);
|
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|
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let mut all_facts = if infcx.tcx.sess.opts.debugging_opts.nll_facts {
|
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let mut all_facts = if infcx.tcx.sess.opts.debugging_opts.nll_facts
|
||||
|| infcx.tcx.sess.opts.debugging_opts.polonius
|
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{
|
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Some(AllFacts::default())
|
||||
} else {
|
||||
None
|
||||
|
@ -113,8 +119,7 @@ pub(in borrow_check) fn compute_regions<'cx, 'gcx, 'tcx>(
|
|||
// Create the region inference context, taking ownership of the region inference
|
||||
// data that was contained in `infcx`.
|
||||
let var_origins = infcx.take_region_var_origins();
|
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let mut regioncx =
|
||||
RegionInferenceContext::new(var_origins, universal_regions, mir);
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let mut regioncx = RegionInferenceContext::new(var_origins, universal_regions, mir);
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|
||||
// Generate various constraints.
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subtype_constraint_generation::generate(
|
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|
@ -138,16 +143,29 @@ pub(in borrow_check) fn compute_regions<'cx, 'gcx, 'tcx>(
|
|||
location_table,
|
||||
&mir,
|
||||
def_id,
|
||||
borrow_set
|
||||
borrow_set,
|
||||
);
|
||||
|
||||
// Dump facts if requested.
|
||||
if let Some(all_facts) = all_facts {
|
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let polonius_output = all_facts.and_then(|all_facts| {
|
||||
if infcx.tcx.sess.opts.debugging_opts.nll_facts {
|
||||
let def_path = infcx.tcx.hir.def_path(def_id);
|
||||
let dir_path = PathBuf::from("nll-facts").join(def_path.to_filename_friendly_no_crate());
|
||||
let dir_path =
|
||||
PathBuf::from("nll-facts").join(def_path.to_filename_friendly_no_crate());
|
||||
all_facts.write_to_dir(dir_path, location_table).unwrap();
|
||||
}
|
||||
|
||||
if infcx.tcx.sess.opts.debugging_opts.polonius {
|
||||
Some(Rc::new(Output::compute(
|
||||
&all_facts,
|
||||
Algorithm::DatafrogOpt,
|
||||
false,
|
||||
)))
|
||||
} else {
|
||||
None
|
||||
}
|
||||
});
|
||||
|
||||
// Solve the region constraints.
|
||||
let closure_region_requirements = regioncx.solve(infcx, &mir, def_id);
|
||||
|
||||
|
@ -166,7 +184,7 @@ pub(in borrow_check) fn compute_regions<'cx, 'gcx, 'tcx>(
|
|||
// information
|
||||
dump_annotation(infcx, &mir, def_id, ®ioncx, &closure_region_requirements);
|
||||
|
||||
(regioncx, closure_region_requirements)
|
||||
(regioncx, polonius_output, closure_region_requirements)
|
||||
}
|
||||
|
||||
fn dump_mir_results<'a, 'gcx, 'tcx>(
|
||||
|
@ -181,7 +199,8 @@ fn dump_mir_results<'a, 'gcx, 'tcx>(
|
|||
return;
|
||||
}
|
||||
|
||||
let regular_liveness_per_location: FxHashMap<_, _> = mir.basic_blocks()
|
||||
let regular_liveness_per_location: FxHashMap<_, _> = mir
|
||||
.basic_blocks()
|
||||
.indices()
|
||||
.flat_map(|bb| {
|
||||
let mut results = vec![];
|
||||
|
@ -194,7 +213,8 @@ fn dump_mir_results<'a, 'gcx, 'tcx>(
|
|||
})
|
||||
.collect();
|
||||
|
||||
let drop_liveness_per_location: FxHashMap<_, _> = mir.basic_blocks()
|
||||
let drop_liveness_per_location: FxHashMap<_, _> = mir
|
||||
.basic_blocks()
|
||||
.indices()
|
||||
.flat_map(|bb| {
|
||||
let mut results = vec![];
|
||||
|
@ -207,7 +227,14 @@ fn dump_mir_results<'a, 'gcx, 'tcx>(
|
|||
})
|
||||
.collect();
|
||||
|
||||
mir_util::dump_mir(infcx.tcx, None, "nll", &0, source, mir, |pass_where, out| {
|
||||
mir_util::dump_mir(
|
||||
infcx.tcx,
|
||||
None,
|
||||
"nll",
|
||||
&0,
|
||||
source,
|
||||
mir,
|
||||
|pass_where, out| {
|
||||
match pass_where {
|
||||
// Before the CFG, dump out the values for each region variable.
|
||||
PassWhere::BeforeCFG => {
|
||||
|
@ -247,7 +274,8 @@ fn dump_mir_results<'a, 'gcx, 'tcx>(
|
|||
PassWhere::AfterLocation(_) | PassWhere::AfterCFG => {}
|
||||
}
|
||||
Ok(())
|
||||
});
|
||||
},
|
||||
);
|
||||
|
||||
// Also dump the inference graph constraints as a graphviz file.
|
||||
let _: io::Result<()> = do catch {
|
||||
|
@ -278,7 +306,8 @@ fn dump_annotation<'a, 'gcx, 'tcx>(
|
|||
// better.
|
||||
|
||||
if let Some(closure_region_requirements) = closure_region_requirements {
|
||||
let mut err = tcx.sess
|
||||
let mut err = tcx
|
||||
.sess
|
||||
.diagnostic()
|
||||
.span_note_diag(mir.span, "External requirements");
|
||||
|
||||
|
@ -298,7 +327,8 @@ fn dump_annotation<'a, 'gcx, 'tcx>(
|
|||
|
||||
err.emit();
|
||||
} else {
|
||||
let mut err = tcx.sess
|
||||
let mut err = tcx
|
||||
.sess
|
||||
.diagnostic()
|
||||
.span_note_diag(mir.span, "No external requirements");
|
||||
regioncx.annotate(&mut err);
|
||||
|
@ -317,8 +347,7 @@ fn for_each_region_constraint(
|
|||
};
|
||||
with_msg(&format!(
|
||||
"where {:?}: {:?}",
|
||||
subject,
|
||||
req.outlived_free_region,
|
||||
subject, req.outlived_free_region,
|
||||
))?;
|
||||
}
|
||||
Ok(())
|
||||
|
|
|
@ -38,6 +38,7 @@ extern crate arena;
|
|||
#[macro_use]
|
||||
extern crate bitflags;
|
||||
#[macro_use] extern crate log;
|
||||
extern crate either;
|
||||
extern crate graphviz as dot;
|
||||
extern crate polonius_engine;
|
||||
#[macro_use]
|
||||
|
|
|
@ -73,6 +73,7 @@ static WHITELIST: &'static [Crate] = &[
|
|||
Crate("crossbeam-deque"),
|
||||
Crate("crossbeam-epoch"),
|
||||
Crate("crossbeam-utils"),
|
||||
Crate("datafrog"),
|
||||
Crate("either"),
|
||||
Crate("ena"),
|
||||
Crate("env_logger"),
|
||||
|
|
Loading…
Reference in New Issue