Package Exports
- shift-traverser
This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (shift-traverser) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.
Readme
Shift Traverser
About
This is a fork and update of Constellation's shift-traverse. Nothing has changed aside from it being modernized and updated for Shift 2018.
This module provides traversal functionality similar to estraverse for a Shift format AST.
Installation
npm install shift-traverseUsage
traverse
import {traverse} from "shift-traverse"
traverse(tree, {
enter(node) {
console.log(`entering ${node.type}`);
},
leave(node) {
console.log(`leaving ${node.type}`);
}
});replace
import parse from 'shift-parser'
import codegen from "shift-codegen";
import { LiteralStringExpression } from "shift-ast";
import { replace, Syntax } from '../'
let code = `
function test() {
console.log("HELLO WORLD");
}
`;
let tree = parse(code);
let transformed = replace(tree, {
enter(node, parent) {
if (node.type === Syntax.LiteralStringExpression) {
return new LiteralStringExpression('ご注文はうさぎですか？');
}
}
});
assert(codegen(transformed) === `function test(){console.log("ご注文はうさぎですか？")}`);License
Copyright (C) 2012-2014 Yusuke Suzuki (twitter: @Constellation) and other contributors.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL