use crate::config::ConfigOption;
use crate::linter::{SyntaxRule, SyntaxRuleResult};
use sv_parser::{NodeEvent, RefNode, SyntaxTree};
#[derive(Default)]
pub struct StyleCommaleading;
impl SyntaxRule for StyleCommaleading {
fn check(
&mut self,
syntax_tree: &SyntaxTree,
event: &NodeEvent,
_option: &ConfigOption,
) -> SyntaxRuleResult {
let node = match event {
NodeEvent::Enter(x) => x,
NodeEvent::Leave(_) => {
return SyntaxRuleResult::Pass;
}
};
match node {
RefNode::Symbol(x) => {
let t = syntax_tree.get_str(*x).unwrap();
if t.starts_with(",") && t != ", " {
SyntaxRuleResult::Fail
} else {
SyntaxRuleResult::Pass
}
}
_ => SyntaxRuleResult::Pass,
}
}
fn name(&self) -> String {
String::from("style_commaleading")
}
fn hint(&self, _option: &ConfigOption) -> String {
String::from(format!(
"Follow each comma with a single space (comma-leading format)."
))
}
fn reason(&self) -> String {
String::from("Consistent style enhances readability.")
}
}