@openhps/core/dist/esm/three/nodes/code/ExpressionNode.js

Open Hybrid Positioning System - Core component

import Node from '../core/Node.js';
import { nodeProxy } from '../tsl/TSLCore.js';

/**
 * This class can be used to implement basic expressions in shader code.
 * Basic examples for that are `return`, `continue` or `discard` statements.
 *
 * @augments Node
 */
class ExpressionNode extends Node {
  static get type() {
    return 'ExpressionNode';
  }

  /**
   * Constructs a new expression node.
   *
   * @param {string} [snippet=''] - The native code snippet.
   * @param {string} [nodeType='void'] - The node type.
   */
  constructor(snippet = '', nodeType = 'void') {
    super(nodeType);

    /**
     * The native code snippet.
     *
     * @type {string}
     * @default ''
     */
    this.snippet = snippet;
  }
  generate(builder, output) {
    const type = this.getNodeType(builder);
    const snippet = this.snippet;
    if (type === 'void') {
      builder.addLineFlowCode(snippet, this);
    } else {
      return builder.format(snippet, type, output);
    }
  }
}
export default ExpressionNode;

/**
 * TSL function for creating an expression node.
 *
 * @tsl
 * @function
 * @param {string} [snippet] - The native code snippet.
 * @param {?string} [nodeType='void'] - The node type.
 * @returns {ExpressionNode}
 */
export const expression = /*@__PURE__*/nodeProxy(ExpressionNode).setParameterLength(1, 2);