Use updated textrules API with TextRulesEvent

Cargo.toml

@@ -13,6 +13,6 @@ crate-type = ["cdylib"]
 
 [dependencies]
 #svlint = { path = "../svlint" }
-svlint    = "0.8.0"
+svlint    = "0.9.0"
 sv-parser = "0.13.1"
 regex     = "1" # Only used for the rule "forbidden_regex".

src/forbidden_regex.rs

@@ -1,5 +1,5 @@
 use svlint::config::ConfigOption;
-use svlint::linter::{TextRule, TextRuleResult};
+use svlint::linter::{TextRule, TextRuleEvent, TextRuleResult};
 use regex::Regex;
 
 #[derive(Default)]
@@ -10,9 +10,16 @@ pub struct ForbiddenRegex {
 impl TextRule for ForbiddenRegex {
     fn check(
         &mut self,
-        line: &str,
+        event: TextRuleEvent,
         _option: &ConfigOption,
     ) -> TextRuleResult {
+        let line: &str = match event {
+            TextRuleEvent::StartOfFile => {
+                return TextRuleResult::Pass;
+            }
+            TextRuleEvent::Line(x) => x,
+        };
+
         if self.re.is_none() {
             let r = format!(r"XXX");
             self.re = Some(Regex::new(&r).unwrap());

src/lib.rs

@@ -30,7 +30,7 @@ mod tests {
     use std::fs::read_to_string;
     use std::path::{Path, PathBuf};
     use svlint::config::Config;
-    use svlint::linter::Linter;
+    use svlint::linter::{Linter, TextRuleEvent};
     use sv_parser::parse_sv_str;
 
     fn so_path() -> String {
@@ -77,12 +77,16 @@ mod tests {
 
         let mut pass = true;
 
+        // Signal beginning of file to all TextRules, which *may* be used
+        // by textrules to reset their internal state.
+        let _ = linter.textrules_check(TextRuleEvent::StartOfFile, &sv, &0);
+
         // Iterate over lines in the file, applying each textrule to each
         // line in turn.
         let text: String = read_to_string(&sv).unwrap();
         let mut beg: usize = 0;
         for line in text.lines() {
-            for _failed in linter.textrules_check(&line, &sv, &beg) {
+            for _failed in linter.textrules_check(TextRuleEvent::Line(&line), &sv, &beg) {
                 pass = false;
             }