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Further reduce usage of .clone()

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This commit is contained in:
ConnorSkees 2020-01-18 21:05:26 -05:00
parent 720b1e9f22
commit b25fe63e8e
5 changed files with 19 additions and 26 deletions
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4
src/css.rs
View File

@ -100,7 +100,7 @@ impl Css {
self.idx = self.blocks.len() + 1;
self.inner_rulesets = 0;
self.blocks
.push(Toplevel::new_rule(super_selector.zip(selector)));
.push(Toplevel::new_rule(super_selector.zip(&selector)));
for rule in rules {
self.at_root = true;
self.parse_stmt(rule);
@ -111,7 +111,7 @@ impl Css {
self.idx += 1;
self.at_root = false;
self.blocks
.push(Toplevel::new_rule(super_selector.zip(selector)));
.push(Toplevel::new_rule(super_selector.zip(&selector)));
for rule in rules {
self.parse_stmt(rule);
}

7
src/format.rs
View File

@ -58,12 +58,7 @@ impl<W: Write> PrettyPrinter<W> {
rules,
super_selector,
}) => {
writeln!(
self.buf,
"{}{} {{",
padding,
super_selector.clone().zip(selector.clone())
)?;
writeln!(self.buf, "{}{} {{", padding, super_selector.zip(selector))?;
self.scope += 1;
for rule in rules {
self.pretty_print_stmt(rule)?;

4
src/main.rs
View File

@ -405,7 +405,7 @@ impl<'a> StyleSheetParser<'a> {
}
Expr::Selector(s) => {
self.scope += 1;
let rules = self.eat_rules(&super_selector.clone().zip(s.clone()), scope);
let rules = self.eat_rules(&super_selector.zip(&s), scope);
stmts.push(Stmt::RuleSet(RuleSet {
super_selector: super_selector.clone(),
selector: s,
@ -634,7 +634,7 @@ pub(crate) fn eat_expr<I: Iterator<Item = Token>>(
/// Functions that print to stdout or stderr
impl<'a> StyleSheetParser<'a> {
fn debug(&self, pos: Pos, message: &str) {
println!("{}:{} Debug: {}", self.file, pos.line(), message);
eprintln!("{}:{} Debug: {}", self.file, pos.line(), message);
}
fn warn(&self, pos: Pos, message: &str) {

2
src/mixin.rs
View File

@ -115,7 +115,7 @@ impl Mixin {
Expr::Include(_) | Expr::MixinDecl(_, _) => todo!(),
Expr::Selector(s) => {
self.nesting += 1;
let rules = self.eval(&super_selector.clone().zip(s.clone()), scope)?;
let rules = self.eval(&super_selector.zip(&s), scope)?;
stmts.push(Stmt::RuleSet(RuleSet {
super_selector: super_selector.clone(),
selector: s,

28
src/selector.rs
View File

@ -268,29 +268,27 @@ impl Selector {
SelectorParser::new(scope).all_selectors(tokens)
}
pub fn zip(self, other: Selector) -> Selector {
pub fn zip(&self, other: &Selector) -> Selector {
if self.0.is_empty() {
return Selector(other.0);
return Selector(other.0.clone());
}
let mut rules: Vec<SelectorKind> = Vec::with_capacity(self.0.len() + other.0.len());
let sel1_split: Vec<Vec<SelectorKind>> = self
let sel1_split: Vec<&[SelectorKind]> =
self.0.split(|sel| sel == &SelectorKind::Multiple).collect();
let sel2_split: Vec<&[SelectorKind]> = other
.0
.split(|sel| sel == &SelectorKind::Multiple)
.map(|x| x.to_vec())
.collect();
let sel2_split: Vec<Vec<SelectorKind>> = other
.0
.split(|sel| sel == &SelectorKind::Multiple)
.map(|x| x.to_vec())
.collect();
for (idx, sel1) in sel1_split.iter().enumerate() {
let len1 = sel1_split.len();
let len2 = sel2_split.len();
for (idx, sel1) in sel1_split.into_iter().enumerate() {
for (idx2, sel2) in sel2_split.iter().enumerate() {
let mut this_selector = Vec::with_capacity(other.0.len());
let mut this_selector: Vec<SelectorKind> = Vec::with_capacity(other.0.len());
let mut found_super = false;
for sel in sel2 {
for sel in *sel2 {
if sel == &SelectorKind::Super {
this_selector.extend(sel1.iter().cloned());
this_selector.extend(sel1.to_vec());
found_super = true;
} else {
this_selector.push(sel.clone());
@ -298,12 +296,12 @@ impl Selector {
}
if !found_super {
rules.extend(sel1.iter().cloned());
rules.extend(sel1.to_vec());
rules.push(SelectorKind::Whitespace);
}
rules.extend(this_selector);
if !(idx + 1 == sel1_split.len() && idx2 + 1 == sel2_split.len()) {
if !(idx + 1 == len1 && idx2 + 1 == len2) {
rules.push(SelectorKind::Multiple);
}
}