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Fix some comments.

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This commit is contained in:
Felix S. Klock II 2016-05-25 14:52:40 +02:00
parent 4412c7ab37
commit d9680f5b36
1 changed files with 8 additions and 7 deletions
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15
src/librustc_borrowck/borrowck/mir/dataflow/mod.rs
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@ -324,9 +324,9 @@ pub trait BitDenotation {
/// "transfer-function" represnting the overall-effect of the
/// block, represented via GEN and KILL sets.
///
/// The statement here is `idx_stmt.1`; `idx_stmt.0` is just
/// an identifying index: namely, the index of the statement
/// in the basic block.
/// The statement is identified as `bb_data[idx_stmt]`, where
/// `bb_data` is the sequence of statements identifed by `bb` in
/// the MIR.
fn statement_effect(&self,
ctxt: &Self::Ctxt,
sets: &mut BlockSets<Self::Idx>,
@ -341,10 +341,6 @@ fn statement_effect(&self,
/// "transfer-function" represnting the overall-effect of the
/// block, represented via GEN and KILL sets.
///
/// The terminator here is `idx_term.1`; `idx_term.0` is just an
/// identifying index: namely, the number of statements in `bb`
/// itself.
///
/// The effects applied here cannot depend on which branch the
/// terminator took.
fn terminator_effect(&self,
@ -367,6 +363,11 @@ fn terminator_effect(&self,
/// flow-dependent, the current MIR cannot encode them via just
/// GEN and KILL sets attached to the block, and so instead we add
/// this extra machinery to represent the flow-dependent effect.
///
/// FIXME: Right now this is a bit of a wart in the API. It might
/// be better to represent this as an additional gen- and
/// kill-sets associated with each edge coming out of the basic
/// block.
fn propagate_call_return(&self,
ctxt: &Self::Ctxt,
in_out: &mut IdxSet<Self::Idx>,