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Implement visit_basic_block_data

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This commit is contained in:
Shotaro Yamada 2018-10-25 20:33:40 +09:00
parent 105ae712f4
commit 24d3f5b48f
1 changed files with 25 additions and 4 deletions
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29
clippy_lints/src/redundant_clone.rs
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@ -261,10 +261,31 @@ struct LocalUseVisitor {
}
impl<'tcx> mir::visit::Visitor<'tcx> for LocalUseVisitor {
fn visit_statement(&mut self, block: mir::BasicBlock, statement: &mir::Statement<'tcx>, location: mir::Location) {
// Once flagged, skip remaining statements
if !self.used_other_than_drop {
self.super_statement(block, statement, location);
fn visit_basic_block_data(&mut self, block: mir::BasicBlock, data: &mir::BasicBlockData<'tcx>) {
let mir::BasicBlockData {
statements,
terminator,
is_cleanup: _,
} = data;
for (statement_index, statement) in statements.iter().enumerate() {
self.visit_statement(block, statement, mir::Location { block, statement_index });
// Once flagged, skip remaining statements
if self.used_other_than_drop {
return;
}
}
if let Some(terminator) = terminator {
self.visit_terminator(
block,
terminator,
mir::Location {
block,
statement_index: statements.len(),
},
);
}
}