Avoid redundant per-call work in blink reporter and phpdoc typo fixer

blink/internal/fixer/rules/symplify_docblock3.go

@@ -4,11 +4,25 @@ import (
 	"regexp"
 	"sort"
 	"strings"
+	"sync"
 
 	"blink/internal/token"
 	"blink/internal/tokens"
 )
 
+// fpntTypoReCache memoizes the per-typo-name @param patterns, which are
+// otherwise recompiled on every fpntFixTypos call. Keyed by typo name.
+var fpntTypoReCache sync.Map
+
+func fpntTypoRe(typoName string) *regexp.Regexp {
+	if re, ok := fpntTypoReCache.Load(typoName); ok {
+		return re.(*regexp.Regexp)
+	}
+	re := regexp.MustCompile(`@param(.*?)(` + regexp.QuoteMeta(typoName) + `\b)`)
+	fpntTypoReCache.Store(typoName, re)
+	return re
+}
+
 // --- FixParamNameTypo: correct a @param variable name to match the real argument ---
 
 type FixParamNameTypo struct{}
@@ -132,7 +146,7 @@ func fpntFixTypos(argumentNames []string, missArg, paramNames map[int]string, co
 		if !ok {
 			continue
 		}
-		re := regexp.MustCompile(`@param(.*?)(` + regexp.QuoteMeta(typoName) + `\b)`)
+		re := fpntTypoRe(typoName)
 		content = replaceFirstFunc(content, re, func(groups []string) string {
 			paramName := groups[2]
 			if done, exists := replaced[paramName]; exists && !done {

blink/internal/reporter/reporter.go

@@ -84,11 +84,10 @@ func newFormatter(w io.Writer) formatter {
 	return formatter{w: w, width: width, color: color}
 }
 
-// relativePath resolves an absolute file path against the current working
-// directory, matching ECS's StaticRelativeFilePathHelper output.
-func relativePath(path string) string {
-	cwd, err := os.Getwd()
-	if err != nil {
+// relativePath resolves an absolute file path against cwd, matching ECS's
+// StaticRelativeFilePathHelper output. An empty cwd yields the path unchanged.
+func relativePath(cwd, path string) string {
+	if cwd == "" {
 		return path
 	}
 	rel, err := filepath.Rel(cwd, path)
@@ -104,9 +103,13 @@ func (f formatter) reportFileDiffs(results []runner.FileResult) {
 	}
 	f.newLine(1)
 
+	cwd, err := os.Getwd()
+	if err != nil {
+		cwd = ""
+	}
 	for i, r := range results {
 		f.newLine(2)
-		f.writeln(f.bold(fmt.Sprintf("%d) %s", i+1, relativePath(r.Path))))
+		f.writeln(f.bold(fmt.Sprintf("%d) %s", i+1, relativePath(cwd, r.Path))))
 		f.newLine(1)
 		f.writeln(f.formatDiff(r.Diff))
 		f.newLine(1)