lsp: borrow errors ranged on the use, with related information for where the owner ended and was declared; vscode client passes relatedInformation through

1 files changed, 7 insertions, 0 deletions

diff --git a/editors/vscode/client/extension.js b/editors/vscode/client/extension.js
index cd497d8..38c4c73 100644
--- a/editors/vscode/client/extension.js
+++ b/editors/vscode/client/extension.js
@@ -207,6 +207,13 @@ function showDiags(uri, raw) {
             : vscode.DiagnosticSeverity.Error;
         const diag = new vscode.Diagnostic(new vscode.Range(r.start.line, r.start.character, r.end.line, r.end.character), d.message, sev);
         diag.source = d.source || 'zc';
+        // a borrow error names its owner: where it ended and where it was declared
+        if (Array.isArray(d.relatedInformation)) {
+            diag.relatedInformation = d.relatedInformation.filter(ri => ri && ri.location && ri.location.range).map(ri => {
+                const lr = ri.location.range;
+                return new vscode.DiagnosticRelatedInformation(new vscode.Location(vscode.Uri.parse(ri.location.uri || uri), new vscode.Range(lr.start.line, lr.start.character, lr.end.line, lr.end.character)), ri.message || '');
+            });
+        }
         return diag;
     });
     stats.diagnostics += list.length;