optimize append, set skip if prepareChar returns empty

uNmAnNeR · Jul 20, 2023 · 32f7374 · 32f7374
1 parent 0256f08
commit 32f7374
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Showing 2 changed files with 6 additions and 3 deletions.
diff --git a/packages/imask/src/core/change-details.ts b/packages/imask/src/core/change-details.ts
@@ -15,7 +15,7 @@ class ChangeDetails {
   /** Inserted symbols */
   declare inserted: string;
   /** Can skip chars */
-  declare skip: boolean;
+  declare skip?: boolean;
   /** Additional offset if any changes occurred before tail */
   declare tailShift: number;
   /** Raw inserted is used by dynamic mask */
@@ -32,7 +32,6 @@ class ChangeDetails {
     Object.assign(this, {
       inserted: '',
       rawInserted: '',
-      skip: false,
       tailShift: 0,
     }, details);
   }

diff --git a/packages/imask/src/masked/base.ts b/packages/imask/src/masked/base.ts
@@ -220,7 +220,11 @@ abstract class Masked<Value=any> {
     let details: ChangeDetails;
     [ch, details] = this.doPrepareChar(ch, flags);
 
-    details = details.aggregate(this._appendCharRaw(ch, flags));
+    if (ch) {
+      details = details.aggregate(this._appendCharRaw(ch, flags));
+    } else if (details.skip == null) {
+      details.skip = true;
+    }
 
     if (details.inserted) {
       let consistentTail;