power-assert-context-reducer-ast

[![power-assert][power-assert-banner]][power-assert-url]

[![Build Status][travis-image]][travis-url]
[![NPM version][npm-image]][npm-url]
[![License][license-image]][license-url]

powerAssertContext reducer function to parse assertion expression at runtime.

Use this function when transpiler side does not add ast, tokens and visitorKeys at compile time.

API
---------------------------------------

$3

$3

Given powerAssertContext object, having structure below but does not have ast, tokens and visitorKeys, append them to output context.

input:
``js
{
source: {
content: 'assert(foo === bar)',
filepath: 'test/some_test.js',
line: 1
},
args: [
{
value: false,
events: [
{
value: "FOO",
espath: "arguments/0/left"
},
{
value: "BAR",
espath: "arguments/0/right"
},
{
value: false,
espath: "arguments/0"
}
]
}
]
}
`

output:

`js
{
source: {
content: 'assert(foo === bar)',
filepath: 'test/some_test.js',
line: 1,
ast: '### JSON representation of AST nodes ###',
tokens: '### JSON representation of AST tokens ###',
visitorKeys: '### JSON representation of AST visitor keys ###'
},
args: [
{
value: false,
events: [
{
value: "FOO",
espath: "arguments/0/left"
},
{
value: "BAR",
espath: "arguments/0/right"
},
{
value: false,
espath: "arguments/0"
}
]
}
]
}
`


INSTALL
---------------------------------------

`sh
$ npm install --save-dev power-assert-context-reducer-ast
``

AUTHOR
---------------------------------------
* Takuto Wada

CONTRIBUTORS
---------------------------------------
* Haoliang Gao (popomore)

LICENSE
---------------------------------------
Licensed under the MIT license.

[power-assert-url]: https://github.com/power-assert-js/power-assert
[power-assert-banner]: https://raw.githubusercontent.com/power-assert-js/power-assert-js-logo/master/banner/banner-official-fullcolor.png

[travis-url]: https://travis-ci.org/twada/power-assert-runtime
[travis-image]: https://secure.travis-ci.org/twada/power-assert-runtime.svg?branch=master

[npm-url]: https://npmjs.org/package/power-assert-context-reducer-ast
[npm-image]: https://badge.fury.io/js/power-assert-context-reducer-ast.svg

[license-url]: https://github.com/twada/power-assert-runtime/blob/master/LICENSE
[license-image]: https://img.shields.io/badge/license-MIT-brightgreen.svg