use crate::config::ConfigOption;
use crate::linter::{SyntaxRule, SyntaxRuleResult};
use sv_parser::{NodeEvent, RefNode, SyntaxTree};
#[derive(Default)]
pub struct ModuleAnsiForbidden;
impl SyntaxRule for ModuleAnsiForbidden {
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::ModuleAnsiHeader(x) => {
let (_, _, _, _, _, _, ports, _) = &x.nodes;
if let Some(_) = ports {
SyntaxRuleResult::Fail
} else {
SyntaxRuleResult::Pass
}
}
_ => SyntaxRuleResult::Pass,
}
}
fn name(&self) -> String {
String::from("module_ansi_forbidden")
}
fn hint(&self, _option: &ConfigOption) -> String {
String::from("Declare `module` header in non-ANSI style.")
}
fn reason(&self) -> String {
String::from("Only SystemVerilog, not Verilog, allows `localparam` in ANSI module header.")
}
}