1 files changed, 133 insertions, 0 deletions
diff --git a/node_modules/sucrase/dist/esm/index.js b/node_modules/sucrase/dist/esm/index.js
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+++ b/node_modules/sucrase/dist/esm/index.js
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+import CJSImportProcessor from "./CJSImportProcessor";
+import computeSourceMap, {} from "./computeSourceMap";
+import {HelperManager} from "./HelperManager";
+import identifyShadowedGlobals from "./identifyShadowedGlobals";
+import NameManager from "./NameManager";
+import {validateOptions} from "./Options";
+
+import {parse} from "./parser";
+
+import TokenProcessor from "./TokenProcessor";
+import RootTransformer from "./transformers/RootTransformer";
+import formatTokens from "./util/formatTokens";
+import getTSImportedNames from "./util/getTSImportedNames";
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+;
+
+export function getVersion() {
+  /* istanbul ignore next */
+  return "3.34.0";
+}
+
+export function transform(code, options) {
+  validateOptions(options);
+  try {
+    const sucraseContext = getSucraseContext(code, options);
+    const transformer = new RootTransformer(
+      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: computeSourceMap(
+          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;
+  }
+}
+
+/**
+ * Return a string representation of the sucrase tokens, mostly useful for
+ * diagnostic purposes.
+ */
+export function getFormattedTokens(code, options) {
+  const tokens = getSucraseContext(code, options).tokenProcessor.tokens;
+  return formatTokens(code, tokens);
+}
+
+/**
+ * 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 = parse(code, isJSXEnabled, isTypeScriptEnabled, isFlowEnabled);
+  const tokens = file.tokens;
+  const scopes = file.scopes;
+
+  const nameManager = new NameManager(code, tokens);
+  const helperManager = new HelperManager(nameManager);
+  const tokenProcessor = new TokenProcessor(
+    code,
+    tokens,
+    isFlowEnabled,
+    disableESTransforms,
+    helperManager,
+  );
+  const enableLegacyTypeScriptModuleInterop = Boolean(options.enableLegacyTypeScriptModuleInterop);
+
+  let importProcessor = null;
+  if (options.transforms.includes("imports")) {
+    importProcessor = new CJSImportProcessor(
+      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.
+    identifyShadowedGlobals(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.
+    identifyShadowedGlobals(tokenProcessor, scopes, getTSImportedNames(tokenProcessor));
+  }
+  return {tokenProcessor, scopes, nameManager, importProcessor, helperManager};
+}