@putout/compare/lib/link.js

compare AST-nodes according to 🦎 PutoutScript

import {types} from '@putout/babel';

const {
    isIdentifier,
    isLiteral,
    isStringLiteral,
    isTemplateElement,
    isTSTypeReference,
    isJSXText,
    isJSXIdentifier,
} = types;

const parseName = (node) => {
    node = node[0] || node;
    const {name, value} = node;
    
    if (isIdentifier(node) || isJSXIdentifier(node))
        return name;
    
    if (isLiteral(node))
        return value;
    
    if (isTemplateElement(node))
        return node.value.cooked;
    
    if (isTSTypeReference(node))
        return node.typeName.name;
    
    if (isJSXText(node))
        return node.value;
    
    throw Error(`☝️ Looks like type of node '${node.type}' not supported by 'compare -> link -> parseName()'`);
};

export default ({add, value, nodeValue, templateStore}) => {
    const name = parseName(value);
    
    if (isStringLiteral(value) && !isStringLiteral(nodeValue))
        return false;
    
    if (!templateStore[name]) {
        templateStore[name] = nodeValue;
        return true;
    }
    
    if (isIdentifier(templateStore[name]) && isTSTypeReference(nodeValue))
        return true;
    
    add(templateStore[name], nodeValue, {
        plain: true,
    });
    
    return true;
};

export const _parseName = parseName;