Remove some of Buffer's dependency on Terminal

src/Buffer.test.ts

@@ -108,12 +108,12 @@ describe('Buffer', () => {
 
   describe('resize', () => {
     describe('column size is reduced', () => {
-      it('should not trim the data in the buffer', () => {
+      it('should trim the data in the buffer', () => {
         buffer.fillViewportRows();
         buffer.resize(INIT_COLS / 2, INIT_ROWS);
         assert.equal(buffer.lines.length, INIT_ROWS);
         for (let i = 0; i < INIT_ROWS; i++) {
-          assert.equal(buffer.lines.get(i).length, INIT_COLS);
+          assert.equal(buffer.lines.get(i).length, INIT_COLS / 2);
         }
       });
     });
@@ -235,11 +235,6 @@ describe('Buffer', () => {
     });
 
     describe('reflow', () => {
-      beforeEach(() => {
-        terminal.eraseAttr = () => DEFAULT_ATTR;
-        // Needed until the setting is removed
-        terminal.options.experimentalBufferLineImpl = 'TypedArray';
-      });
       it('should not wrap empty lines', () => {
         buffer.fillViewportRows();
         assert.equal(buffer.lines.length, INIT_ROWS);

src/Buffer.ts

@@ -234,7 +234,7 @@ export class Buffer implements IBuffer {
 
     this.scrollBottom = newRows - 1;
 
-    if (this.hasScrollback && this._terminal.options.experimentalBufferLineImpl === 'TypedArray') {
+    if (this.hasScrollback && this._bufferLineConstructor === BufferLine) {
       this._reflow(newCols);
 
       // Trim the end of the line off if cols shrunk
@@ -374,7 +374,7 @@ export class Buffer implements IBuffer {
     // Add the new lines
     const newLines: BufferLine[] = [];
     for (let i = 0; i < linesToAdd; i++) {
-      const newLine = this.getBlankLine(this._terminal.eraseAttr(), true) as BufferLine;
+      const newLine = this.getBlankLine(DEFAULT_ATTR, true) as BufferLine;
       newLines.push(newLine);
     }
     this.lines.splice(y + wrappedLines.length, 0, ...newLines);

src/Types.ts

@@ -230,7 +230,6 @@ export interface ITerminal extends PublicTerminal, IElementAccessor, IBufferAcce
   cancel(ev: Event, force?: boolean): boolean | void;
   log(text: string): void;
   showCursor(): void;
-  eraseAttr(): number;
 }
 
 export interface IBufferAccessor {