use crate::config::ConfigOption;
use crate::linter::{check_prefix, SyntaxRule, SyntaxRuleResult};
use sv_parser::{unwrap_node, NodeEvent, PortDirection, RefNode, SyntaxTree};
#[derive(Default)]
pub struct PrefixInout;
impl SyntaxRule for PrefixInout {
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::AnsiPortDeclaration(x) => {
let dir = unwrap_node!(*x, PortDirection);
let is_inout: bool = match dir {
Some(RefNode::PortDirection(PortDirection::Inout(_))) => true,
_ => false,
};
if is_inout {
check_prefix(unwrap_node!(*x, PortIdentifier), &syntax_tree, &option.prefix_inout)
} else {
SyntaxRuleResult::Pass
}
}
_ => SyntaxRuleResult::Pass,
}
}
fn name(&self) -> String {
String::from("prefix_inout")
}
fn hint(&self, option: &ConfigOption) -> String {
String::from(format!(
"Prefix `inout` port identifier with \"{}\".",
&option.prefix_inout
))
}
fn reason(&self) -> String {
String::from("Port prefixes help readers to follow signals through modules.")
}
}