use crate::config::ConfigOption;
use crate::linter::{SyntaxRule, SyntaxRuleResult};
use sv_parser::{unwrap_locate, unwrap_node, NodeEvent, RefNode, SyntaxTree};
#[derive(Default)]
pub struct ParameterInPackage;
impl SyntaxRule for ParameterInPackage {
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::PackageDeclaration(x) => {
let param = unwrap_node!(*x, ParameterDeclaration);
if let Some(param) = param {
let param_locate = unwrap_locate!(param).unwrap();
SyntaxRuleResult::FailLocate(*param_locate)
} else {
SyntaxRuleResult::Pass
}
}
_ => SyntaxRuleResult::Pass,
}
}
fn name(&self) -> String {
String::from("parameter_in_package")
}
fn hint(&self, _option: &ConfigOption) -> String {
String::from("Replace `parameter` keyword with `localparam`.")
}
fn reason(&self) -> String {
String::from("In a package, `localparam` properly describes the non-overridable semantics.")
}
}