new approach

2018-10-09 23:48:58 +02:00
parent febc3ba2b8
commit 33a358033c
3 changed files with 35 additions and 11 deletions
@@ -94,13 +94,11 @@ export class BufferLine implements IBufferLine {
    }
  }

-  public copyFrom(line: IBufferLine): void {
-    this._data = [];
-    for (let i = 0; i < line.length; ++i) {
-      this._push(line.get(i));
-    }
+  public copyFrom(line: BufferLine): IBufferLine {
+    this._data = line._data.slice(0);
    this.length = line.length;
    this.isWrapped = line.isWrapped;
+    return this;
  }

  public clone(): IBufferLine {
@@ -249,7 +247,7 @@ export class BufferLineTypedArray implements IBufferLine {
  }

  /** alter to a full copy of line  */
-  public copyFrom(line: BufferLineTypedArray): void {
+  public copyFrom(line: BufferLineTypedArray): IBufferLine {
    if (this.length !== line.length) {
      this._data = new Uint32Array(line._data);
    } else {
@@ -262,6 +260,7 @@ export class BufferLineTypedArray implements IBufferLine {
      this._combined[el] = line._combined[el];
    }
    this.isWrapped = line.isWrapped;
+    return this;
  }

  /** create a new clone */