GT2/GT2-iOS/node_modules/match-require/lib/index.js

78 lines
2.2 KiB
JavaScript

'use strict';
var IMPORT_RE = /(\bimport\s+(?:[^'"]+\s+from\s+)??)(['"])([^'"]+)(\2)/g;
var EXPORT_RE = /(\bexport\s+(?:[^'"]+\s+from\s+)??)(['"])([^'"]+)(\2)/g;
var REQUIRE_RE = /(\brequire\s*?\(\s*?)(['"])([^'"]+)(\2\s*?\))/g;
/**
* Extract all required modules from a `code` string.
*/
var blockCommentRe = /\/\*(.|\n)*?\*\//g;
var lineCommentRe = /\/\/.+(\n|$)/g;
// from react-native packager
function findAll(code) {
var deps = [];
code.replace(blockCommentRe, '').replace(lineCommentRe, '')
// Parse the sync dependencies this module has. When the module is
// required, all it's sync dependencies will be loaded into memory.
// Sync dependencies can be defined either using `require` or the ES6
// `import` or `export` syntaxes:
// const dep1 = require('dep1');
.replace(IMPORT_RE, function (match, pre, quot, dep, post) {
deps.push(dep);
return match;
}).replace(EXPORT_RE, function (match, pre, quot, dep, post) {
deps.push(dep);
return match;
}).replace(REQUIRE_RE, function (match, pre, quot, dep, post) {
deps.push(dep);
return match;
});
return deps;
}
function replaceAll(code, replacer) {
function doIt(_match, pre, quot, dep, post) {
return '' + pre + quot + replacer(dep) + post;
}
return code.replace(blockCommentRe, '').replace(lineCommentRe, '').replace(IMPORT_RE, doIt).replace(EXPORT_RE, doIt).replace(REQUIRE_RE, doIt);
}
function splitPackageName(moduleName) {
var index = moduleName.indexOf('/');
if (index !== -1) {
// support domain package
// require('@ali/matrix')
if (moduleName.charAt(0) === '@') {
index = moduleName.indexOf('/', index + 1);
}
}
if (index !== -1) {
return {
packageName: moduleName.slice(0, index),
suffix: moduleName.slice(index)
};
} else {
return {
packageName: moduleName,
suffix: ''
};
}
}
function startsWith(str, prefix) {
return str.slice(0, prefix.length) === prefix;
}
module.exports = {
findAll: findAll,
replaceAll: replaceAll,
findAllImports: findAll,
splitPackageName: splitPackageName,
isRelativeModule: function isRelativeModule(dep) {
return startsWith(dep, './') || startsWith(dep, '../');
}
};