85 lines
2.1 KiB
JavaScript
85 lines
2.1 KiB
JavaScript
|
'use strict';
|
||
|
|
|
||
|
|
Object.defineProperty(exports, '__esModule', {
|
||
|
|
value: true
|
||
|
|
});
|
||
|
|
exports.extractor = void 0;
|
||
|
|
/**
|
||
|
|
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
|
||
|
|
*
|
||
|
|
* This source code is licensed under the MIT license found in the
|
||
|
|
* LICENSE file in the root directory of this source tree.
|
||
|
|
*/
|
||
|
|
|
||
|
|
const NOT_A_DOT = '(?<!\\.\\s*)';
|
||
|
|
const CAPTURE_STRING_LITERAL = pos => `([\`'"])([^'"\`]*?)(?:\\${pos})`;
|
||
|
|
const WORD_SEPARATOR = '\\b';
|
||
|
|
const LEFT_PARENTHESIS = '\\(';
|
||
|
|
const RIGHT_PARENTHESIS = '\\)';
|
||
|
|
const WHITESPACE = '\\s*';
|
||
|
|
const OPTIONAL_COMMA = '(:?,\\s*)?';
|
||
|
|
function createRegExp(parts, flags) {
|
||
|
|
return new RegExp(parts.join(''), flags);
|
||
|
|
}
|
||
|
|
function alternatives(...parts) {
|
||
|
|
return `(?:${parts.join('|')})`;
|
||
|
|
}
|
||
|
|
function functionCallStart(...names) {
|
||
|
|
return [
|
||
|
|
NOT_A_DOT,
|
||
|
|
WORD_SEPARATOR,
|
||
|
|
alternatives(...names),
|
||
|
|
WHITESPACE,
|
||
|
|
LEFT_PARENTHESIS,
|
||
|
|
WHITESPACE
|
||
|
|
];
|
||
|
|
}
|
||
|
|
const BLOCK_COMMENT_RE = /\/\*[^]*?\*\//g;
|
||
|
|
const LINE_COMMENT_RE = /\/\/.*/g;
|
||
|
|
const REQUIRE_OR_DYNAMIC_IMPORT_RE = createRegExp(
|
||
|
|
[
|
||
|
|
...functionCallStart('require', 'import'),
|
||
|
|
CAPTURE_STRING_LITERAL(1),
|
||
|
|
WHITESPACE,
|
||
|
|
OPTIONAL_COMMA,
|
||
|
|
RIGHT_PARENTHESIS
|
||
|
|
],
|
||
|
|
'g'
|
||
|
|
);
|
||
|
|
const IMPORT_OR_EXPORT_RE = createRegExp(
|
||
|
|
[
|
||
|
|
'\\b(?:import|export)\\s+(?!type(?:of)?\\s+)(?:[^\'"]+\\s+from\\s+)?',
|
||
|
|
CAPTURE_STRING_LITERAL(1)
|
||
|
|
],
|
||
|
|
'g'
|
||
|
|
);
|
||
|
|
const JEST_EXTENSIONS_RE = createRegExp(
|
||
|
|
[
|
||
|
|
...functionCallStart(
|
||
|
|
'jest\\s*\\.\\s*(?:requireActual|requireMock|genMockFromModule|createMockFromModule)'
|
||
|
|
),
|
||
|
|
CAPTURE_STRING_LITERAL(1),
|
||
|
|
WHITESPACE,
|
||
|
|
OPTIONAL_COMMA,
|
||
|
|
RIGHT_PARENTHESIS
|
||
|
|
],
|
||
|
|
'g'
|
||
|
|
);
|
||
|
|
const extractor = {
|
||
|
|
extract(code) {
|
||
|
|
const dependencies = new Set();
|
||
|
|
const addDependency = (match, _, dep) => {
|
||
|
|
dependencies.add(dep);
|
||
|
|
return match;
|
||
|
|
};
|
||
|
|
code
|
||
|
|
.replace(BLOCK_COMMENT_RE, '')
|
||
|
|
.replace(LINE_COMMENT_RE, '')
|
||
|
|
.replace(IMPORT_OR_EXPORT_RE, addDependency)
|
||
|
|
.replace(REQUIRE_OR_DYNAMIC_IMPORT_RE, addDependency)
|
||
|
|
.replace(JEST_EXTENSIONS_RE, addDependency);
|
||
|
|
return dependencies;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
exports.extractor = extractor;
|