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Rename BlockFormatter::results as BlockFormatter::cursor.

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Because it's a `ResultsCursor`, not a `Results`. I find this easier to
read and understand.
This commit is contained in:
Nicholas Nethercote 2024-10-30 13:12:03 +11:00
parent 31e102c509
commit 744eb2f937
1 changed files with 26 additions and 26 deletions
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52
compiler/rustc_mir_dataflow/src/framework/graphviz.rs
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@ -96,13 +96,13 @@ where
// the value with `None`, move it into the results cursor, move it
// back out, and return it to the refcell wrapped in `Some`.
let mut fmt = BlockFormatter {
results: results.take().unwrap().into_results_cursor(self.body),
cursor: results.take().unwrap().into_results_cursor(self.body),
style: self.style,
bg: Background::Light,
};
fmt.write_node_label(&mut label, *block).unwrap();
Some(fmt.results.into_results())
Some(fmt.cursor.into_results())
});
dot::LabelText::html(String::from_utf8(label).unwrap())
}
@ -155,7 +155,7 @@ struct BlockFormatter<'mir, 'tcx, A>
where
A: Analysis<'tcx>,
{
results: ResultsCursor<'mir, 'tcx, A>,
cursor: ResultsCursor<'mir, 'tcx, A>,
bg: Background,
style: OutputStyle,
}
@ -219,8 +219,8 @@ where
// C: State at start of block
self.bg = Background::Light;
self.results.seek_to_block_start(block);
let block_start_state = self.results.get().clone();
self.cursor.seek_to_block_start(block);
let block_start_state = self.cursor.get().clone();
self.write_row_with_full_state(w, "", "(on start)")?;
// D + E: Statement and terminator transfer functions
@ -228,12 +228,12 @@ where
// F: State at end of block
let terminator = self.results.body()[block].terminator();
let terminator = self.cursor.body()[block].terminator();
// Write the full dataflow state immediately after the terminator if it differs from the
// state at block entry.
self.results.seek_to_block_end(block);
if self.results.get() != &block_start_state || A::Direction::IS_BACKWARD {
self.cursor.seek_to_block_end(block);
if self.cursor.get() != &block_start_state || A::Direction::IS_BACKWARD {
let after_terminator_name = match terminator.kind {
mir::TerminatorKind::Call { target: Some(_), .. } => "(on unwind)",
_ => "(on end)",
@ -250,8 +250,8 @@ where
match terminator.kind {
mir::TerminatorKind::Call { destination, .. } => {
self.write_row(w, "", "(on successful return)", |this, w, fmt| {
let state_on_unwind = this.results.get().clone();
this.results.apply_custom_effect(|analysis, state| {
let state_on_unwind = this.cursor.get().clone();
this.cursor.apply_custom_effect(|analysis, state| {
analysis.apply_call_return_effect(
state,
block,
@ -265,9 +265,9 @@ where
colspan = this.style.num_state_columns(),
fmt = fmt,
diff = diff_pretty(
this.results.get(),
this.cursor.get(),
&state_on_unwind,
this.results.analysis()
this.cursor.analysis()
),
)
})?;
@ -275,8 +275,8 @@ where
mir::TerminatorKind::Yield { resume, resume_arg, .. } => {
self.write_row(w, "", "(on yield resume)", |this, w, fmt| {
let state_on_coroutine_drop = this.results.get().clone();
this.results.apply_custom_effect(|analysis, state| {
let state_on_coroutine_drop = this.cursor.get().clone();
this.cursor.apply_custom_effect(|analysis, state| {
analysis.apply_call_return_effect(
state,
resume,
@ -290,9 +290,9 @@ where
colspan = this.style.num_state_columns(),
fmt = fmt,
diff = diff_pretty(
this.results.get(),
this.cursor.get(),
&state_on_coroutine_drop,
this.results.analysis()
this.cursor.analysis()
),
)
})?;
@ -302,8 +302,8 @@ where
if !targets.is_empty() =>
{
self.write_row(w, "", "(on successful return)", |this, w, fmt| {
let state_on_unwind = this.results.get().clone();
this.results.apply_custom_effect(|analysis, state| {
let state_on_unwind = this.cursor.get().clone();
this.cursor.apply_custom_effect(|analysis, state| {
analysis.apply_call_return_effect(
state,
block,
@ -317,9 +317,9 @@ where
colspan = this.style.num_state_columns(),
fmt = fmt,
diff = diff_pretty(
this.results.get(),
this.cursor.get(),
&state_on_unwind,
this.results.analysis()
this.cursor.analysis()
),
)
})?;
@ -407,9 +407,9 @@ where
block: BasicBlock,
) -> io::Result<()> {
let diffs = StateDiffCollector::run(
self.results.body(),
self.cursor.body(),
block,
self.results.mut_results(),
self.cursor.mut_results(),
self.style,
);
@ -420,7 +420,7 @@ where
if A::Direction::IS_FORWARD { it.next().unwrap() } else { it.next_back().unwrap() }
};
for (i, statement) in self.results.body()[block].statements.iter().enumerate() {
for (i, statement) in self.cursor.body()[block].statements.iter().enumerate() {
let statement_str = format!("{statement:?}");
let index_str = format!("{i}");
@ -442,7 +442,7 @@ where
assert!(diffs_after.is_empty());
assert!(diffs_before.as_ref().map_or(true, ExactSizeIterator::is_empty));
let terminator = self.results.body()[block].terminator();
let terminator = self.cursor.body()[block].terminator();
let mut terminator_str = String::new();
terminator.kind.fmt_head(&mut terminator_str).unwrap();
@ -492,8 +492,8 @@ where
mir: &str,
) -> io::Result<()> {
self.write_row(w, i, mir, |this, w, fmt| {
let state = this.results.get();
let analysis = this.results.analysis();
let state = this.cursor.get();
let analysis = this.cursor.analysis();
// FIXME: The full state vector can be quite long. It would be nice to split on commas
// and use some text wrapping algorithm.