summaryrefslogtreecommitdiff
path: root/node_modules/sucrase/dist/util/getTSImportedNames.js
diff options
context:
space:
mode:
Diffstat (limited to 'node_modules/sucrase/dist/util/getTSImportedNames.js')
-rw-r--r--node_modules/sucrase/dist/util/getTSImportedNames.js84
1 files changed, 84 insertions, 0 deletions
diff --git a/node_modules/sucrase/dist/util/getTSImportedNames.js b/node_modules/sucrase/dist/util/getTSImportedNames.js
new file mode 100644
index 0000000..5c5362c
--- /dev/null
+++ b/node_modules/sucrase/dist/util/getTSImportedNames.js
@@ -0,0 +1,84 @@
+"use strict";Object.defineProperty(exports, "__esModule", {value: true}); function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }var _types = require('../parser/tokenizer/types');
+
+var _getImportExportSpecifierInfo = require('./getImportExportSpecifierInfo'); var _getImportExportSpecifierInfo2 = _interopRequireDefault(_getImportExportSpecifierInfo);
+
+/**
+ * Special case code to scan for imported names in ESM TypeScript. We need to do this so we can
+ * properly get globals so we can compute shadowed globals.
+ *
+ * This is similar to logic in CJSImportProcessor, but trimmed down to avoid logic with CJS
+ * replacement and flow type imports.
+ */
+ function getTSImportedNames(tokens) {
+ const importedNames = new Set();
+ for (let i = 0; i < tokens.tokens.length; i++) {
+ if (
+ tokens.matches1AtIndex(i, _types.TokenType._import) &&
+ !tokens.matches3AtIndex(i, _types.TokenType._import, _types.TokenType.name, _types.TokenType.eq)
+ ) {
+ collectNamesForImport(tokens, i, importedNames);
+ }
+ }
+ return importedNames;
+} exports.default = getTSImportedNames;
+
+function collectNamesForImport(
+ tokens,
+ index,
+ importedNames,
+) {
+ index++;
+
+ if (tokens.matches1AtIndex(index, _types.TokenType.parenL)) {
+ // Dynamic import, so nothing to do
+ return;
+ }
+
+ if (tokens.matches1AtIndex(index, _types.TokenType.name)) {
+ importedNames.add(tokens.identifierNameAtIndex(index));
+ index++;
+ if (tokens.matches1AtIndex(index, _types.TokenType.comma)) {
+ index++;
+ }
+ }
+
+ if (tokens.matches1AtIndex(index, _types.TokenType.star)) {
+ // * as
+ index += 2;
+ importedNames.add(tokens.identifierNameAtIndex(index));
+ index++;
+ }
+
+ if (tokens.matches1AtIndex(index, _types.TokenType.braceL)) {
+ index++;
+ collectNamesForNamedImport(tokens, index, importedNames);
+ }
+}
+
+function collectNamesForNamedImport(
+ tokens,
+ index,
+ importedNames,
+) {
+ while (true) {
+ if (tokens.matches1AtIndex(index, _types.TokenType.braceR)) {
+ return;
+ }
+
+ const specifierInfo = _getImportExportSpecifierInfo2.default.call(void 0, tokens, index);
+ index = specifierInfo.endIndex;
+ if (!specifierInfo.isType) {
+ importedNames.add(specifierInfo.rightName);
+ }
+
+ if (tokens.matches2AtIndex(index, _types.TokenType.comma, _types.TokenType.braceR)) {
+ return;
+ } else if (tokens.matches1AtIndex(index, _types.TokenType.braceR)) {
+ return;
+ } else if (tokens.matches1AtIndex(index, _types.TokenType.comma)) {
+ index++;
+ } else {
+ throw new Error(`Unexpected token: ${JSON.stringify(tokens.tokens[index])}`);
+ }
+ }
+}