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ast-node-builder
Advanced tools
Checkout the api in this Playground
Read the introductory blog post to know more about the tool.
Build your Abstract Syntax Trees (AST) directly from code. You give the input in the form of code and get the builder API in jscodeshift.
const { buildAST } = require('ast-node-builder');
const { parse } = require('recast');
const code = `
class MyComponent extends ReactComponent {
constructor(a, b) {
this.a = a;
this.b = b;
}
hello(x, y) {
console.log(x, y);
}
}
`;
let ast = parse(code);
let pseudoAst = buildAST(ast);
console.log(pseudoAst);
j.classDeclaration(
j.identifier('MyComponent'),
j.classBody([j.methodDefinition(
'constructor',
j.identifier('constructor'),
j.functionExpression(
null,
[j.identifier('a'),j.identifier('b')],
j.blockStatement([j.expressionStatement(j.assignmentExpression(
'=',
j.memberExpression(
j.thisExpression(),
j.identifier('a'),
false
),
j.identifier('a')
)),j.expressionStatement(j.assignmentExpression(
'=',
j.memberExpression(
j.thisExpression(),
j.identifier('b'),
false
),
j.identifier('b')
))])
),
false
),j.methodDefinition(
'method',
j.identifier('hello'),
j.functionExpression(
null,
[j.identifier('x'),j.identifier('y')],
j.blockStatement([j.expressionStatement(j.callExpression(
j.memberExpression(
j.identifier('console'),
j.identifier('log'),
false
),
[j.identifier('x'),j.identifier('y')]
))])
),
false
)]),
j.identifier('ReactComponent')
)
Place debugger
statements in the code in appropriate places and run:
$ npm run debug
This will start mocha tests in debug mode and you can use Chrome Dev Tools to view the debugger.
FAQs
AST Node Building api based on jscodeshift
The npm package ast-node-builder receives a total of 137 weekly downloads. As such, ast-node-builder popularity was classified as not popular.
We found that ast-node-builder demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
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