rust-lang/rust
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Implement a lint that highlights all moves larger than 1000 bytes

Browse Source
This commit is contained in:
Oli Scherer
2021-03-26 13:39:04 +00:00
committed by Felix S. Klock II
parent 6af1e632a9
commit e9696c8b62
6 changed files with 153 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
compiler/rustc_mir/src/transform/const_prop.rs
View File

@@ -13,7 +13,7 @@ use rustc_middle::mir::visit::{
MutVisitor, MutatingUseContext, NonMutatingUseContext, PlaceContext, Visitor,
};
use rustc_middle::mir::{
AssertKind, BasicBlock, BinOp, Body, ClearCrossCrate, Constant, ConstantKind, Local, LocalDecl,
AssertKind, BasicBlock, BinOp, Body, Constant, ConstantKind, Local, LocalDecl,
LocalKind, Location, Operand, Place, Rvalue, SourceInfo, SourceScope, SourceScopeData,
Statement, StatementKind, Terminator, TerminatorKind, UnOp, RETURN_PLACE,
};
@@ -440,18 +440,7 @@ impl<'mir, 'tcx> ConstPropagator<'mir, 'tcx> {
}
fn lint_root(&self, source_info: SourceInfo) -> Option<HirId> {
let mut data = &self.source_scopes[source_info.scope];
// FIXME(oli-obk): we should be able to just walk the `inlined_parent_scope`, but it
// does not work as I thought it would. Needs more investigation and documentation.
while data.inlined.is_some() {
trace!(?data);
data = &self.source_scopes[data.parent_scope.unwrap()];
}
trace!(?data);
match &data.local_data {
ClearCrossCrate::Set(data) => Some(data.lint_root),
ClearCrossCrate::Clear => None,
}
source_info.scope.lint_root(&self.source_scopes)
}
fn use_ecx<F, T>(&mut self, f: F) -> Option<T>