second commit

node_modules/sucrase/dist/parser/traverser/lval.js

@@ -0,0 +1,159 @@
+"use strict";Object.defineProperty(exports, "__esModule", {value: true});var _flow = require('../plugins/flow');
+var _typescript = require('../plugins/typescript');
+
+
+
+
+
+
+
+var _index = require('../tokenizer/index');
+var _keywords = require('../tokenizer/keywords');
+var _types = require('../tokenizer/types');
+var _base = require('./base');
+var _expression = require('./expression');
+var _util = require('./util');
+
+ function parseSpread() {
+  _index.next.call(void 0, );
+  _expression.parseMaybeAssign.call(void 0, false);
+} exports.parseSpread = parseSpread;
+
+ function parseRest(isBlockScope) {
+  _index.next.call(void 0, );
+  parseBindingAtom(isBlockScope);
+} exports.parseRest = parseRest;
+
+ function parseBindingIdentifier(isBlockScope) {
+  _expression.parseIdentifier.call(void 0, );
+  markPriorBindingIdentifier(isBlockScope);
+} exports.parseBindingIdentifier = parseBindingIdentifier;
+
+ function parseImportedIdentifier() {
+  _expression.parseIdentifier.call(void 0, );
+  _base.state.tokens[_base.state.tokens.length - 1].identifierRole = _index.IdentifierRole.ImportDeclaration;
+} exports.parseImportedIdentifier = parseImportedIdentifier;
+
+ function markPriorBindingIdentifier(isBlockScope) {
+  let identifierRole;
+  if (_base.state.scopeDepth === 0) {
+    identifierRole = _index.IdentifierRole.TopLevelDeclaration;
+  } else if (isBlockScope) {
+    identifierRole = _index.IdentifierRole.BlockScopedDeclaration;
+  } else {
+    identifierRole = _index.IdentifierRole.FunctionScopedDeclaration;
+  }
+  _base.state.tokens[_base.state.tokens.length - 1].identifierRole = identifierRole;
+} exports.markPriorBindingIdentifier = markPriorBindingIdentifier;
+
+// Parses lvalue (assignable) atom.
+ function parseBindingAtom(isBlockScope) {
+  switch (_base.state.type) {
+    case _types.TokenType._this: {
+      // In TypeScript, "this" may be the name of a parameter, so allow it.
+      const oldIsType = _index.pushTypeContext.call(void 0, 0);
+      _index.next.call(void 0, );
+      _index.popTypeContext.call(void 0, oldIsType);
+      return;
+    }
+
+    case _types.TokenType._yield:
+    case _types.TokenType.name: {
+      _base.state.type = _types.TokenType.name;
+      parseBindingIdentifier(isBlockScope);
+      return;
+    }
+
+    case _types.TokenType.bracketL: {
+      _index.next.call(void 0, );
+      parseBindingList(_types.TokenType.bracketR, isBlockScope, true /* allowEmpty */);
+      return;
+    }
+
+    case _types.TokenType.braceL:
+      _expression.parseObj.call(void 0, true, isBlockScope);
+      return;
+
+    default:
+      _util.unexpected.call(void 0, );
+  }
+} exports.parseBindingAtom = parseBindingAtom;
+
+ function parseBindingList(
+  close,
+  isBlockScope,
+  allowEmpty = false,
+  allowModifiers = false,
+  contextId = 0,
+) {
+  let first = true;
+
+  let hasRemovedComma = false;
+  const firstItemTokenIndex = _base.state.tokens.length;
+
+  while (!_index.eat.call(void 0, close) && !_base.state.error) {
+    if (first) {
+      first = false;
+    } else {
+      _util.expect.call(void 0, _types.TokenType.comma);
+      _base.state.tokens[_base.state.tokens.length - 1].contextId = contextId;
+      // After a "this" type in TypeScript, we need to set the following comma (if any) to also be
+      // a type token so that it will be removed.
+      if (!hasRemovedComma && _base.state.tokens[firstItemTokenIndex].isType) {
+        _base.state.tokens[_base.state.tokens.length - 1].isType = true;
+        hasRemovedComma = true;
+      }
+    }
+    if (allowEmpty && _index.match.call(void 0, _types.TokenType.comma)) {
+      // Empty item; nothing further to parse for this item.
+    } else if (_index.eat.call(void 0, close)) {
+      break;
+    } else if (_index.match.call(void 0, _types.TokenType.ellipsis)) {
+      parseRest(isBlockScope);
+      parseAssignableListItemTypes();
+      // Support rest element trailing commas allowed by TypeScript <2.9.
+      _index.eat.call(void 0, _types.TokenType.comma);
+      _util.expect.call(void 0, close);
+      break;
+    } else {
+      parseAssignableListItem(allowModifiers, isBlockScope);
+    }
+  }
+} exports.parseBindingList = parseBindingList;
+
+function parseAssignableListItem(allowModifiers, isBlockScope) {
+  if (allowModifiers) {
+    _typescript.tsParseModifiers.call(void 0, [
+      _keywords.ContextualKeyword._public,
+      _keywords.ContextualKeyword._protected,
+      _keywords.ContextualKeyword._private,
+      _keywords.ContextualKeyword._readonly,
+      _keywords.ContextualKeyword._override,
+    ]);
+  }
+
+  parseMaybeDefault(isBlockScope);
+  parseAssignableListItemTypes();
+  parseMaybeDefault(isBlockScope, true /* leftAlreadyParsed */);
+}
+
+function parseAssignableListItemTypes() {
+  if (_base.isFlowEnabled) {
+    _flow.flowParseAssignableListItemTypes.call(void 0, );
+  } else if (_base.isTypeScriptEnabled) {
+    _typescript.tsParseAssignableListItemTypes.call(void 0, );
+  }
+}
+
+// Parses assignment pattern around given atom if possible.
+ function parseMaybeDefault(isBlockScope, leftAlreadyParsed = false) {
+  if (!leftAlreadyParsed) {
+    parseBindingAtom(isBlockScope);
+  }
+  if (!_index.eat.call(void 0, _types.TokenType.eq)) {
+    return;
+  }
+  const eqIndex = _base.state.tokens.length - 1;
+  _expression.parseMaybeAssign.call(void 0, );
+  _base.state.tokens[eqIndex].rhsEndIndex = _base.state.tokens.length;
+} exports.parseMaybeDefault = parseMaybeDefault;