Compare AST-nodes according to 🦎PutoutScript.
npm i @putout/compare
Get template values from node according to 🦎PutouScript template.
-
node-AST-nodeorcodethat will be generated; -
template- 🦎PutouScript;
const {operator} = require('putout');
const {template} = operator;
const node = template.ast('const [] = a');
getTemplateValues(node, 'const __array = array');
// returns
({
__array: {
type: 'ArrayPattern',
},
});-
node-AST-nodeorcodethat will be generated; -
template-AST-nodewith support oftemplate variables. -
options- (optional) - object with properties:-
findUp(default:true) - find up template node;
-
Compare nodes feats templates.
Compare any nodes that feats one of templates
compareAny(path, 'const __a = __b', {
findUp: false,
});Any node.
compare('const x = data', 'const __ = __');
compare('const {x} = data', 'const __ = __');
compare('const x = {data}', 'const __ = __');
compare('<h1>hello</h1>', '<h1>__</h1>');
// returns
true;ObjectPattern or ObjectExpression with any count of properties.
compare('const {} = data', 'const __object = __');
compare('const {hello} = data', 'const __object = __');
// returns
true;ArrayPattern or ArrayExpression with any count of elements.
compare('const [] = data', 'const __array = __');
compare('const [hello] = data', 'const __array = __');
compare('const hello = [data]', 'const __ = __array');
// returns
true;Any count of arguments:
compare('(a, b, c) => {}', '(__args) => {}');
compare('(a, b) => {}', '(__args) => {}');
compare('() => {}', '(__args) => {}');
// returns
true;Or linked arguments:
compare('((a) => fn(a))(value)', '((__args__a) => __c(__args__a))(__args__b)');
// returns
true;
compare('((a) => fn(42))(value)', '((__args__a) => __c(__args__a))(__args__b)');
// returns
false;Any count of import specifiers:
compare('import React, {Component} from "react"', 'import __imports from "react"');
// returns
true;Any count of export specifiers:
compare('export {scan, fix, report}', 'export {__exports}');
// returns
true;Any string literal.
compare('const a = "hello"', 'const __ = "__"');Linked node.
compare('const __a = "hello"', 'const __a = "hello"');Linked string literal.
compare('const a = "hello"', 'const __a = "__b"');Linked template literal.
compare('const a = `hello`', 'const __a = `__b`');
// returns
true;Any BlockStatement.
compare('const a = () => 0', 'const a = () => __body');
// returns
false;
compare('const a = () => {}', 'const a = () => __body');
// returns
true;Any count of children of JSXElement:
compare('<div hello="world"></div>', '<div hello="world">__jsx_children</div>');
// returns
true;
compare('<div hello="world"><span>hi</span></div>', '<div hello="world">__jsx_children</div>');
// returns
true;Any count of attributes of JSXElement:
compare('<div hello="world"></div>', '<__a __jsx_attributes/>');
// returns
true;Any Function with no arguments and empty body;
compare('const a = () => {}', 'const __a = __nop');
// returns
true;
compare('const a = async () => {}', 'const a = __nop');
// returns
true;Any Identifier
compare('const a = 5', 'const __identifier = 5');
// returns
true;Any Boolean
compare('const a = true', 'const a = __bool');
// returns
true;Any regexp
compare('const a = /hello/g', 'const a = /__a/');
// returns
true;MIT