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Code Issues Releases Wiki Activity

optimize prop flattening cycle prevention

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This commit is contained in:
Robin Appelman 2022-12-13 22:27:38 +01:00
commit 836e7718ce
1 changed files with 40 additions and 38 deletions
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78
src/demo/packet/datatable.rs
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@ -319,11 +319,11 @@ fn test_parse_send_table_roundtrip() {
impl ParseSendTable {
pub fn flatten_props(&self, tables: &[ParseSendTable]) -> Result<Vec<SendPropDefinition>> {
let mut flat = Vec::with_capacity(32);
self.get_all_props(
self.push_props_end(
tables,
&self.get_excludes(tables, &mut Vec::with_capacity(8)),
&self.get_excludes(tables),
&mut flat,
Vec::with_capacity(8),
&mut Vec::with_capacity(16),
)?;
// sort often changed props before the others
@ -340,13 +340,21 @@ impl ParseSendTable {
Ok(flat)
}
fn get_excludes<'a>(
fn get_excludes<'a>(&'a self, tables: &'a [ParseSendTable]) -> Vec<SendPropIdentifier> {
let mut excludes = Vec::with_capacity(8);
self.build_excludes(tables, &mut Vec::with_capacity(8), &mut excludes);
excludes
}
fn build_excludes<'a>(
&'a self,
tables: &'a [ParseSendTable],
processed_tables: &mut Vec<SendTableName>,
) -> Vec<SendPropIdentifier> {
processed_tables.push(self.name.clone());
let mut excludes = Vec::with_capacity(8);
processed_tables: &mut Vec<&'a SendTableName>,
excludes: &mut Vec<SendPropIdentifier>,
) {
processed_tables.push(&self.name);
for prop in self.props.iter() {
if let Some(exclude_table) = prop.get_exclude_table() {
@ -355,73 +363,67 @@ impl ParseSendTable {
prop.name.as_str(),
))
} else if let Some(table) = prop.get_data_table(tables) {
if !processed_tables.contains(&table.name) {
excludes.extend_from_slice(&table.get_excludes(tables, processed_tables));
if !processed_tables.contains(&&table.name) {
table.build_excludes(tables, processed_tables, excludes);
}
}
}
excludes
}
// TODO: below is a direct port from the js which is a direct port from C++ and not very optimal
fn get_all_props(
&self,
tables: &[ParseSendTable],
fn push_props_end<'a>(
&'a self,
tables: &'a [ParseSendTable],
excludes: &[SendPropIdentifier],
props: &mut Vec<SendPropDefinition>,
processed_tables: Vec<SendTableName>,
table_stack: &mut Vec<&'a SendTableName>,
) -> Result<()> {
let mut local_props = Vec::new();
self.get_all_props_iterator_props(
tables,
excludes,
&mut local_props,
props,
processed_tables,
)?;
self.push_props_collapse(tables, excludes, &mut local_props, props, table_stack)?;
props.extend_from_slice(&local_props);
Ok(())
}
fn get_all_props_iterator_props(
&self,
tables: &[ParseSendTable],
fn push_props_collapse<'a>(
&'a self,
tables: &'a [ParseSendTable],
excludes: &[SendPropIdentifier],
local_props: &mut Vec<SendPropDefinition>,
props: &mut Vec<SendPropDefinition>,
processed_tables: Vec<SendTableName>,
table_stack: &mut Vec<&'a SendTableName>,
) -> Result<()> {
let processed_tables = &processed_tables;
self.props
table_stack.push(&self.name);
let result = self
.props
.iter()
.filter(|prop| !prop.is_exclude())
.filter(|prop| !excludes.iter().any(|exclude| *exclude == prop.identifier()))
.try_for_each(|prop| {
let mut child_processed_tables = processed_tables.clone();
child_processed_tables.push(self.name.clone());
if let Some(table) = prop.get_data_table(tables) {
if !processed_tables.contains(&table.name) {
if !table_stack.contains(&&table.name) {
if prop.flags.contains(SendPropFlag::Collapsible) {
table.get_all_props_iterator_props(
table.push_props_collapse(
tables,
excludes,
local_props,
props,
child_processed_tables,
table_stack,
)?;
} else {
table.get_all_props(tables, excludes, props, child_processed_tables)?;
table.push_props_end(tables, excludes, props, table_stack)?;
}
} else {
dbg!(table.name.as_str());
}
} else {
local_props.push(SendPropDefinition::try_from(prop)?);
}
Ok(())
})
});
table_stack.pop();
result
}
}