lib: improve debuglog() performance

PR-URL: https://github.com/nodejs/node/pull/32260
Reviewed-By: James M Snell <jasnell@gmail.com>

2 files changed, 6 insertions, 2 deletions

diff --git a/lib/internal/source_map/prepare_stack_trace.js b/lib/internal/source_map/prepare_stack_trace.js
index df0d79a204b..23e117b677b 100644
--- a/lib/internal/source_map/prepare_stack_trace.js
+++ b/lib/internal/source_map/prepare_stack_trace.js
@@ -4,7 +4,9 @@ const {
   Error,
 } = primordials;
 
-const debug = require('internal/util/debuglog').debuglog('source_map');
+let debug = require('internal/util/debuglog').debuglog('source_map', (fn) => {
+  debug = fn;
+});
 const { getStringWidth } = require('internal/util/inspect');
 const { readFileSync } = require('fs');
 const { findSourceMap } = require('internal/source_map/source_map_cache');
diff --git a/lib/internal/source_map/source_map_cache.js b/lib/internal/source_map/source_map_cache.js
index 04926acfc1b..db7a19e2759 100644
--- a/lib/internal/source_map/source_map_cache.js
+++ b/lib/internal/source_map/source_map_cache.js
@@ -22,7 +22,9 @@ function ObjectGetValueSafe(obj, key) {
 
 // See https://sourcemaps.info/spec.html for SourceMap V3 specification.
 const { Buffer } = require('buffer');
-const debug = require('internal/util/debuglog').debuglog('source_map');
+let debug = require('internal/util/debuglog').debuglog('source_map', (fn) => {
+  debug = fn;
+});
 const { dirname, resolve } = require('path');
 const fs = require('fs');
 const { getOptionValue } = require('internal/options');