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Nodes.ts
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import { IBlockStatementNode } from "./interfaces/nodes/IBlockStatementNode";
import { IIdentifierNode } from "./interfaces/nodes/IIdentifierNode";
import { ILiteralNode } from "./interfaces/nodes/ILiteralNode";
import { IMemberExpressionNode } from "./interfaces/nodes/IMemberExpressionNode";
import { INode } from "./interfaces/nodes/INode";
import { IProgramNode } from "./interfaces/nodes/IProgramNode";
import { IPropertyNode } from "./interfaces/nodes/IPropertyNode";
import { IVariableDeclaratorNode } from "./interfaces/nodes/IVariableDeclaratorNode";
import { TStatement } from "./types/nodes/TStatement";
import { TNodeWithBlockStatement } from "./types/TNodeWithBlockStatement";
import { NodeType } from "./enums/NodeType";
export class Nodes {
/**
* @param bodyNode
* @returns IProgramNode
*/
public static getProgramNode (bodyNode: TStatement[]): IProgramNode {
return {
'type': NodeType.Program,
'body': bodyNode,
'sourceType': 'script'
};
}
/**
* @param node
* @returns {boolean}
*/
public static isBlockStatementNode (node: INode): node is IBlockStatementNode {
return node.type === NodeType.BlockStatement;
}
/**
* @param node
* @returns {boolean}
*/
public static isIdentifierNode (node: INode): node is IIdentifierNode {
return node.type === NodeType.Identifier;
}
/**
* @param node
* @returns {boolean}
*/
public static isLiteralNode (node: INode): node is ILiteralNode {
return node.type === NodeType.Literal;
}
/**
* @param node
* @returns {boolean}
*/
public static isMemberExpressionNode (node: INode): node is IMemberExpressionNode {
return node.type === NodeType.MemberExpression;
}
/**
*
* @param node
* @returns {boolean}
*/
public static isProgramNode (node: INode): node is IProgramNode {
return node.type === NodeType.Program;
}
/**
*
* @param node
* @returns {boolean}
*/
public static isPropertyNode (node: INode): node is IPropertyNode {
return node.type === NodeType.Property;
}
/**
*
* @param node
* @returns {boolean}
*/
public static isVariableDeclaratorNode (node: INode): node is IVariableDeclaratorNode {
return node.type === NodeType.VariableDeclarator;
}
/**
* @param node
* @returns {boolean}
*/
public static isNodeHasBlockStatement (node: INode): node is TNodeWithBlockStatement {
return node.hasOwnProperty('body') && Array.isArray((<TNodeWithBlockStatement>node).body);
}
}