try passing traces through the napi layer

Author: lukesandberg

crates/napi/src/next_api/utils.rs

@@ -285,6 +285,7 @@ pub struct NapiIssue {
     pub source: Option<NapiIssueSource>,
     pub documentation_link: String,
     pub sub_issues: Vec<NapiIssue>,
+    pub import_trace: Option<serde_json::Value>,
 }
 
 impl From<&PlainIssue> for NapiIssue {
@@ -309,6 +310,10 @@ impl From<&PlainIssue> for NapiIssue {
                 .iter()
                 .map(|issue| (&**issue).into())
                 .collect(),
+            import_trace: issue
+                .import_trace
+                .as_ref()
+                .map(|trace| serde_json::to_value(&**trace).unwrap()),
         }
     }
 }

packages/next/src/build/swc/generated-native.d.ts

@@ -345,6 +345,7 @@ export interface NapiIssue {
   source?: NapiIssueSource
   documentationLink: string
   subIssues: Array<NapiIssue>
+  importTrace?: any
 }
 export interface NapiIssueSource {
   source: NapiSource

packages/next/src/build/swc/types.ts

@@ -96,6 +96,7 @@ export interface Issue {
   }
   documentationLink: string
   subIssues: Issue[]
+  importTrace?: string[]
 }
 
 export interface Diagnostics {

packages/next/src/shared/lib/turbopack/utils.ts

@@ -129,7 +129,7 @@ export function processIssues(
 }
 
 export function formatIssue(issue: Issue) {
-  const { filePath, title, description, source } = issue
+  const { filePath, title, description, source, importTrace } = issue
   let { documentationLink } = issue
   let formattedTitle = renderStyledStringToErrorAnsi(title).replace(
     /\n/g,
@@ -198,8 +198,12 @@ export function formatIssue(issue: Issue) {
   //   message += renderStyledStringToErrorAnsi(detail) + '\n\n'
   // }
 
-  // TODO: Include a trace from the issue.
-
+  if (importTrace) {
+    message +=
+      'Import trace for requested module:\n' +
+      importTrace.map((i) => '  ' + i).join('\n') +
+      '\n\n'
+  }
   if (documentationLink) {
     message += documentationLink + '\n\n'
   }