parseUnit(var)
  skipErrorTokens(var)
  listener: beginCompilationUnit(var)
  syntheticPreviousToken(var)
  parseTopLevelDeclarationImpl(, DirectiveContext(DirectiveState.Unknown))
    parseMetadataStar()
      listener: beginMetadataStar(var)
      listener: endMetadataStar(0)
    parseTopLevelMemberImpl()
      listener: beginTopLevelMember(var)
      skipOuterPattern(var)
      reportRecoverableErrorWithEnd((, ), PatternVariableDeclarationOutsideFunctionOrMethod)
        listener: handleRecoverableError(PatternVariableDeclarationOutsideFunctionOrMethod, (, ))
      rewriter()
      rewriter()
      parseFields(, null, null, null, null, null, null, var, var, NoType(), , DeclarationKind.TopLevel, null, true)
        listener: beginFields(DeclarationKind.TopLevel, null, null, null, null, null, null, var, )
        listener: handleNoType(var)
        ensureIdentifierPotentiallyRecovered(var, topLevelVariableDeclaration, true)
          listener: handleIdentifier(, topLevelVariableDeclaration)
        parseFieldInitializerOpt(, , null, null, null, null, var, DeclarationKind.TopLevel, null)
          listener: beginFieldInitializer(=)
          parseExpression(=)
            looksLikeOuterPatternEquals(=)
              skipOuterPattern(=)
            parsePrecedenceExpression(=, 1, true, ConstantPatternContext.none)
              parseUnaryExpression(=, true, ConstantPatternContext.none)
                parsePrimary(=, expression, ConstantPatternContext.none)
                  parseParenthesizedExpressionFunctionLiteralOrRecordLiteral(=, ConstantPatternContext.none)
                    parseParenthesizedExpressionOrRecordLiteral(=, null, ConstantPatternContext.none)
                      listener: beginParenthesizedExpressionOrRecordLiteral(()
                      parseExpression(()
                        looksLikeOuterPatternEquals(()
                          skipOuterPattern(()
                        parsePrecedenceExpression((, 1, true, ConstantPatternContext.none)
                          parseUnaryExpression((, true, ConstantPatternContext.none)
                            parsePrimary((, expression, ConstantPatternContext.none)
                              parseLiteralInt(()
                                listener: handleLiteralInt(0)
                      parseExpression(,)
                        looksLikeOuterPatternEquals(,)
                          skipOuterPattern(,)
                        parsePrecedenceExpression(,, 1, true, ConstantPatternContext.none)
                          parseUnaryExpression(,, true, ConstantPatternContext.none)
                            parsePrimary(,, expression, ConstantPatternContext.none)
                              parseLiteralInt(,)
                                listener: handleLiteralInt(1)
                      ensureCloseParen(1, ()
                      listener: endRecordLiteral((, 2, null)
          listener: endFieldInitializer(=, ))
        listener: endTopLevelFields(null, null, null, null, null, var, 1, var, ;)
  listener: endTopLevelDeclaration(;)
  reportAllErrorTokens(var)
  listener: endCompilationUnit(1, )