const { utils } = require('../../utils');

const { WebGLFunctionNode } = require('../web-gl/function-node');

/**

* @class WebGL2FunctionNode

* @desc [INTERNAL] Takes in a function node, and does all the AST voodoo required to toString its respective webGL code.

* @extends WebGLFunctionNode

* @returns the converted webGL function string

*/

class WebGL2FunctionNode extends WebGLFunctionNode {

/**

* @desc Parses the abstract syntax tree for *identifier* expression

* @param {Object} idtNode - An ast Node

* @param {Array} retArr - return array string

* @returns {Array} the append retArr

*/

astIdentifierExpression(idtNode, retArr) {

if (idtNode.type !== 'Identifier') {

throw this.astErrorOutput(

'IdentifierExpression - not an Identifier',

idtNode

);

}

const type = this.getType(idtNode);

const name = utils.sanitizeName(idtNode.name);

if (idtNode.name === 'Infinity') {

retArr.push('intBitsToFloat(2139095039)');

} else if (type === 'Boolean') {

if (this.argumentNames.indexOf(name) > -1) {

retArr.push(`bool(user_${name})`);

} else {

retArr.push(`user_${name}`);

}

} else {

retArr.push(`user_${name}`);

}

return retArr;

}

}

module.exports = {

WebGL2FunctionNode

};