Method astWhileStatement

src/backend/web-gl/function-node.js:708–722

* @desc Parses the abstract syntax tree for *while* loop * @param {Object} whileNode - An ast Node * @param {Array} retArr - return array string * @returns {Array} the parsed webgl string

(whileNode, retArr)

   * @returns {Array} the parsed webgl string
   */
  astWhileStatement(whileNode, retArr) {
    if (whileNode.type !== 'WhileStatement') {
      throw this.astErrorOutput('Invalid while statement', whileNode);
    }

    const iVariableName = this.getInternalVariableName('safeI');
    retArr.push(`for (int ${iVariableName}=0;${iVariableName}<LOOP_MAX;${iVariableName}++){\n`);
    retArr.push('if (!');
    this.astGeneric(whileNode.test, retArr);
    retArr.push(') break;\n');
    this.astGeneric(whileNode.body, retArr);
    retArr.push('}\n');

    return retArr;
  }

  /**
   * @desc Parses the abstract syntax tree for *do while* loop