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151d21e50e
* refactor: Convert renderer typecheck methods to typeguards. * chore: Revert unintended change. * chore: Format types.ts.
40 lines
1.3 KiB
TypeScript
40 lines
1.3 KiB
TypeScript
/**
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* @license
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* Copyright 2019 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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// Former goog.module ID: Blockly.blockRendering.SquareCorner
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import type {ConstantProvider} from '../common/constants.js';
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import {Measurable} from './base.js';
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import {Types} from './types.js';
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/**
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* An object containing information about the space a square corner takes up
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* during rendering.
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*/
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export class SquareCorner extends Measurable {
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// This field exists solely to structurally distinguish this type from other
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// Measurable subclasses. Because this class otherwise has the same fields as
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// Measurable, and Typescript doesn't support nominal typing, Typescript will
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// consider it and other subclasses in the same situation as being of the same
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// type, even if typeguards are used, which could result in Typescript typing
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// objects of this class as `never`.
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private squareCorner: undefined;
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/**
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* @param constants The rendering constants provider.
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* @param opt_position The position of this corner.
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*/
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constructor(constants: ConstantProvider, opt_position?: string) {
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super(constants);
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this.type =
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(!opt_position || opt_position === 'left'
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? Types.LEFT_SQUARE_CORNER
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: Types.RIGHT_SQUARE_CORNER) | Types.CORNER;
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this.height = this.constants_.NO_PADDING;
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this.width = this.constants_.NO_PADDING;
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}
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}
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