devsite/node_modules/sucrase/dist/index.js
2024-07-07 18:49:38 -07:00

134 lines
5.3 KiB
JavaScript

"use strict";Object.defineProperty(exports, "__esModule", {value: true}); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }var _CJSImportProcessor = require('./CJSImportProcessor'); var _CJSImportProcessor2 = _interopRequireDefault(_CJSImportProcessor);
var _computeSourceMap = require('./computeSourceMap'); var _computeSourceMap2 = _interopRequireDefault(_computeSourceMap);
var _HelperManager = require('./HelperManager');
var _identifyShadowedGlobals = require('./identifyShadowedGlobals'); var _identifyShadowedGlobals2 = _interopRequireDefault(_identifyShadowedGlobals);
var _NameManager = require('./NameManager'); var _NameManager2 = _interopRequireDefault(_NameManager);
var _Options = require('./Options');
var _parser = require('./parser');
var _TokenProcessor = require('./TokenProcessor'); var _TokenProcessor2 = _interopRequireDefault(_TokenProcessor);
var _RootTransformer = require('./transformers/RootTransformer'); var _RootTransformer2 = _interopRequireDefault(_RootTransformer);
var _formatTokens = require('./util/formatTokens'); var _formatTokens2 = _interopRequireDefault(_formatTokens);
var _getTSImportedNames = require('./util/getTSImportedNames'); var _getTSImportedNames2 = _interopRequireDefault(_getTSImportedNames);
;
function getVersion() {
/* istanbul ignore next */
return "3.35.0";
} exports.getVersion = getVersion;
function transform(code, options) {
_Options.validateOptions.call(void 0, options);
try {
const sucraseContext = getSucraseContext(code, options);
const transformer = new (0, _RootTransformer2.default)(
sucraseContext,
options.transforms,
Boolean(options.enableLegacyBabel5ModuleInterop),
options,
);
const transformerResult = transformer.transform();
let result = {code: transformerResult.code};
if (options.sourceMapOptions) {
if (!options.filePath) {
throw new Error("filePath must be specified when generating a source map.");
}
result = {
...result,
sourceMap: _computeSourceMap2.default.call(void 0,
transformerResult,
options.filePath,
options.sourceMapOptions,
code,
sucraseContext.tokenProcessor.tokens,
),
};
}
return result;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
} catch (e) {
if (options.filePath) {
e.message = `Error transforming ${options.filePath}: ${e.message}`;
}
throw e;
}
} exports.transform = transform;
/**
* Return a string representation of the sucrase tokens, mostly useful for
* diagnostic purposes.
*/
function getFormattedTokens(code, options) {
const tokens = getSucraseContext(code, options).tokenProcessor.tokens;
return _formatTokens2.default.call(void 0, code, tokens);
} exports.getFormattedTokens = getFormattedTokens;
/**
* Call into the parser/tokenizer and do some further preprocessing:
* - Come up with a set of used names so that we can assign new names.
* - Preprocess all import/export statements so we know which globals we are interested in.
* - Compute situations where any of those globals are shadowed.
*
* In the future, some of these preprocessing steps can be skipped based on what actual work is
* being done.
*/
function getSucraseContext(code, options) {
const isJSXEnabled = options.transforms.includes("jsx");
const isTypeScriptEnabled = options.transforms.includes("typescript");
const isFlowEnabled = options.transforms.includes("flow");
const disableESTransforms = options.disableESTransforms === true;
const file = _parser.parse.call(void 0, code, isJSXEnabled, isTypeScriptEnabled, isFlowEnabled);
const tokens = file.tokens;
const scopes = file.scopes;
const nameManager = new (0, _NameManager2.default)(code, tokens);
const helperManager = new (0, _HelperManager.HelperManager)(nameManager);
const tokenProcessor = new (0, _TokenProcessor2.default)(
code,
tokens,
isFlowEnabled,
disableESTransforms,
helperManager,
);
const enableLegacyTypeScriptModuleInterop = Boolean(options.enableLegacyTypeScriptModuleInterop);
let importProcessor = null;
if (options.transforms.includes("imports")) {
importProcessor = new (0, _CJSImportProcessor2.default)(
nameManager,
tokenProcessor,
enableLegacyTypeScriptModuleInterop,
options,
options.transforms.includes("typescript"),
Boolean(options.keepUnusedImports),
helperManager,
);
importProcessor.preprocessTokens();
// We need to mark shadowed globals after processing imports so we know that the globals are,
// but before type-only import pruning, since that relies on shadowing information.
_identifyShadowedGlobals2.default.call(void 0, tokenProcessor, scopes, importProcessor.getGlobalNames());
if (options.transforms.includes("typescript") && !options.keepUnusedImports) {
importProcessor.pruneTypeOnlyImports();
}
} else if (options.transforms.includes("typescript") && !options.keepUnusedImports) {
// Shadowed global detection is needed for TS implicit elision of imported names.
_identifyShadowedGlobals2.default.call(void 0, tokenProcessor, scopes, _getTSImportedNames2.default.call(void 0, tokenProcessor));
}
return {tokenProcessor, scopes, nameManager, importProcessor, helperManager};
}