twada
EventEmitter of powerAssertContext object provided by power-assert at runtime.
API
var traversal = new ContextTraversal(powerAssertContext);
Create EventEmitter of powerAssertContext object, having structure below.
{
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"
}
]
}
]
}
traversal.traverse()
Fire events while traversing AST tree in powerAssertContext.
events
traversal.on('start', function (powerAssertContext) {})
Called once when traversal starts. Argument is the powerAssertContext object under traversal.
traversal.on('data', function (esNode) {})
Called for each Node of AST in powerAssertContext. Argument is a EsNode object, having structure below.
{
espath: 'arguments/0',
parent: '### parent esNode reference unless root ###',
key: 0,
node: {
type: 'BinaryExpression',
operator: '===',
left: { type: 'Identifier', name: 'foo', range: [ 7, 10 ] },
right: { type: 'Identifier', name: 'bar', range: [ 15, 18 ] },
range: [ 7, 18 ]
},
code: 'foo === bar',
value: false,
isCaptured: true,
range: [ 11, 14 ] // range of operator
};
{
espath: 'arguments/0/right',
parent: '### parent esNode reference unless root ###',
key: 'right',
node: { type: 'Identifier', name: 'bar', range: [ 15, 18 ] },
code: 'bar',
value: 'BAR',
isCaptured: true,
range: [ 15, 18 ]
};
traversal.on('end', function () {})
Called once when traversal ends.
INSTALL
$ npm install --save-dev power-assert-context-traversal
AUTHOR
LICENSE
Licensed under the MIT license.