2 files changed, 23 insertions, 0 deletions
diff --git a/runtime/js/99_main.js b/runtime/js/99_main.js
index c03ed2f8c..ac6161d8d 100644
--- a/runtime/js/99_main.js
+++ b/runtime/js/99_main.js
@@ -96,6 +96,7 @@ ObjectDefineProperties(Symbol, {
 let windowIsClosing = false;
 let globalThis_;
 
+let verboseDeprecatedApiWarning = false;
 let deprecatedApiWarningDisabled = false;
 const ALREADY_WARNED_DEPRECATED = new SafeSet();
 
@@ -104,6 +105,19 @@ function warnOnDeprecatedApi(apiName, stack, ...suggestions) {
     return;
   }
 
+  if (!verboseDeprecatedApiWarning) {
+    if (ALREADY_WARNED_DEPRECATED.has(apiName)) {
+      return;
+    }
+    ALREADY_WARNED_DEPRECATED.add(apiName);
+    console.error(
+      `%cwarning: %cUse of deprecated "${apiName}" API. This API will be removed in Deno 2. Run again with DENO_VERBOSE_WARNINGS=1 to get more details.`,
+      "color: yellow;",
+      "font-weight: bold;",
+    );
+    return;
+  }
+
   if (ALREADY_WARNED_DEPRECATED.has(apiName + stack)) {
     return;
   }
@@ -563,9 +577,11 @@ function bootstrapMainRuntime(runtimeOptions) {
     5: hasNodeModulesDir,
     6: maybeBinaryNpmCommandName,
     7: shouldDisableDeprecatedApiWarning,
+    8: shouldUseVerboseDeprecatedApiWarning,
   } = runtimeOptions;
 
   deprecatedApiWarningDisabled = shouldDisableDeprecatedApiWarning;
+  verboseDeprecatedApiWarning = shouldUseVerboseDeprecatedApiWarning;
   performance.setTimeOrigin(DateNow());
   globalThis_ = globalThis;
 
@@ -703,9 +719,11 @@ function bootstrapWorkerRuntime(
     5: hasNodeModulesDir,
     6: maybeBinaryNpmCommandName,
     7: shouldDisableDeprecatedApiWarning,
+    8: shouldUseVerboseDeprecatedApiWarning,
   } = runtimeOptions;
 
   deprecatedApiWarningDisabled = shouldDisableDeprecatedApiWarning;
+  verboseDeprecatedApiWarning = shouldUseVerboseDeprecatedApiWarning;
   performance.setTimeOrigin(DateNow());
   globalThis_ = globalThis;
 
diff --git a/runtime/worker_bootstrap.rs b/runtime/worker_bootstrap.rs
index e3bfc13b9..519abf74c 100644
--- a/runtime/worker_bootstrap.rs
+++ b/runtime/worker_bootstrap.rs
@@ -61,6 +61,7 @@ pub struct BootstrapOptions {
   pub maybe_binary_npm_command_name: Option<String>,
   pub node_ipc_fd: Option<i64>,
   pub disable_deprecated_api_warning: bool,
+  pub verbose_deprecated_api_warning: bool,
 }
 
 impl Default for BootstrapOptions {
@@ -90,6 +91,7 @@ impl Default for BootstrapOptions {
       maybe_binary_npm_command_name: None,
       node_ipc_fd: None,
       disable_deprecated_api_warning: false,
+      verbose_deprecated_api_warning: false,
     }
   }
 }
@@ -121,6 +123,8 @@ struct BootstrapV8<'a>(
   Option<&'a str>,
   // disable_deprecated_api_warning,
   bool,
+  // verbose_deprecated_api_warning
+  bool,
 );
 
 impl BootstrapOptions {
@@ -141,6 +145,7 @@ impl BootstrapOptions {
       self.has_node_modules_dir,
       self.maybe_binary_npm_command_name.as_deref(),
       self.disable_deprecated_api_warning,
+      self.verbose_deprecated_api_warning,
     );
 
     bootstrap.serialize(ser).unwrap()