From c1c8f17f8d09b11285e2eaa8265e305df5fee7f1 Mon Sep 17 00:00:00 2001
From: Ross Keenan <rossk29@gmail.com>
Date: Tue, 7 Sep 2021 08:41:22 +0200
Subject: [PATCH] fix(CreateIndex): :bug: Check if currFile is null

This occurs when showAliasesInIndex is enabled, but the link is unresolved. So getFileCache is checking for the cache of null
---
 main.js           | 23 +++++++++++++----------
 src/MatrixView.ts | 26 ++++++++++++++++----------
 2 files changed, 29 insertions(+), 20 deletions(-)

diff --git a/main.js b/main.js
index 78649870..1c13e0f8 100644
--- a/main.js
+++ b/main.js
@@ -26165,6 +26165,7 @@ class MatrixView extends obsidian.ItemView {
         reversed.forEach((path) => path.shift());
         const indent = "  ";
         const visited = {};
+        const activeFile = this.app.workspace.getActiveFile();
         reversed.forEach((path) => {
             var _a, _b, _c, _d;
             for (let depth = 0; depth < path.length; depth++) {
@@ -26180,16 +26181,18 @@ class MatrixView extends obsidian.ItemView {
                     index += currNode;
                     index += settings.wikilinkIndex ? "]]" : "";
                     if (settings.aliasesInIndex) {
-                        const currFile = this.app.metadataCache.getFirstLinkpathDest(currNode, this.app.workspace.getActiveFile().path);
-                        const cache = this.app.metadataCache.getFileCache(currFile);
-                        const alias = (_b = (_a = cache === null || cache === void 0 ? void 0 : cache.frontmatter) === null || _a === void 0 ? void 0 : _a.alias) !== null && _b !== void 0 ? _b : [];
-                        const aliases = (_d = (_c = cache === null || cache === void 0 ? void 0 : cache.frontmatter) === null || _c === void 0 ? void 0 : _c.aliases) !== null && _d !== void 0 ? _d : [];
-                        const allAliases = [
-                            ...[alias].flat(3),
-                            ...[aliases].flat(3),
-                        ];
-                        if (allAliases.length) {
-                            index += ` (${allAliases.join(", ")})`;
+                        const currFile = this.app.metadataCache.getFirstLinkpathDest(currNode, activeFile.path);
+                        if (currFile !== null) {
+                            const cache = this.app.metadataCache.getFileCache(currFile);
+                            const alias = (_b = (_a = cache === null || cache === void 0 ? void 0 : cache.frontmatter) === null || _a === void 0 ? void 0 : _a.alias) !== null && _b !== void 0 ? _b : [];
+                            const aliases = (_d = (_c = cache === null || cache === void 0 ? void 0 : cache.frontmatter) === null || _c === void 0 ? void 0 : _c.aliases) !== null && _d !== void 0 ? _d : [];
+                            const allAliases = [
+                                ...[alias].flat(3),
+                                ...[aliases].flat(3),
+                            ];
+                            if (allAliases.length) {
+                                index += ` (${allAliases.join(", ")})`;
+                            }
                         }
                     }
                     index += "\n";
diff --git a/src/MatrixView.ts b/src/MatrixView.ts
index 18bf8680..240ddeff 100644
--- a/src/MatrixView.ts
+++ b/src/MatrixView.ts
@@ -195,6 +195,8 @@ export default class MatrixView extends ItemView {
 
     const indent = "  ";
     const visited: { [node: string]: number[] } = {};
+
+    const activeFile = this.app.workspace.getActiveFile();
     reversed.forEach((path) => {
       for (let depth = 0; depth < path.length; depth++) {
         const currNode = path[depth];
@@ -212,21 +214,25 @@ export default class MatrixView extends ItemView {
           index += settings.wikilinkIndex ? "]]" : "";
 
           if (settings.aliasesInIndex) {
+
             const currFile = this.app.metadataCache.getFirstLinkpathDest(
               currNode,
-              this.app.workspace.getActiveFile().path
+              activeFile.path
             );
-            const cache = this.app.metadataCache.getFileCache(currFile);
 
-            const alias = cache?.frontmatter?.alias ?? [];
-            const aliases = cache?.frontmatter?.aliases ?? [];
+            if (currFile !== null) {
+              const cache = this.app.metadataCache.getFileCache(currFile);
+
+              const alias = cache?.frontmatter?.alias ?? [];
+              const aliases = cache?.frontmatter?.aliases ?? [];
 
-            const allAliases: string[] = [
-              ...[alias].flat(3),
-              ...[aliases].flat(3),
-            ];
-            if (allAliases.length) {
-              index += ` (${allAliases.join(", ")})`;
+              const allAliases: string[] = [
+                ...[alias].flat(3),
+                ...[aliases].flat(3),
+              ];
+              if (allAliases.length) {
+                index += ` (${allAliases.join(", ")})`;
+              }
             }
           }