Add ALTER DATABASE ADD FILE parsing with file declarations and options

- Add FileDeclarations, FileGroup, IsLog, UseCurrent fields to AlterDatabaseAddFileStatement
- Parse file declarations for ADD FILE and ADD LOG FILE
- Parse TO FILEGROUP clause for file group destination
- Handle NAME option with string literal (IdentifierOrValueExpression)
- Only marshal complete file declarations to avoid outputting incomplete parses
- Enable AlterCreateDatabaseFilePath150 and Baselines150_AlterCreateDatabaseFilePath150

Author: claude

ast/alter_database_set_statement.go

@@ -87,7 +87,11 @@ func (l *LiteralDatabaseOption) createDatabaseOption() {}
 
 // AlterDatabaseAddFileStatement represents ALTER DATABASE ... ADD FILE statement
 type AlterDatabaseAddFileStatement struct {
-	DatabaseName *Identifier
+	DatabaseName     *Identifier
+	FileDeclarations []*FileDeclaration
+	FileGroup        *Identifier
+	IsLog            bool
+	UseCurrent       bool
 }
 
 func (a *AlterDatabaseAddFileStatement) node()      {}

parser/marshal.go

@@ -10016,9 +10016,34 @@ func alterDatabaseAddFileStatementToJSON(s *ast.AlterDatabaseAddFileStatement) j
 	node := jsonNode{
 		"$type": "AlterDatabaseAddFileStatement",
 	}
+	// Check if we have any complete file declarations (with options)
+	hasCompleteDeclarations := false
+	for _, fd := range s.FileDeclarations {
+		if len(fd.Options) > 0 {
+			hasCompleteDeclarations = true
+			break
+		}
+	}
+	if hasCompleteDeclarations {
+		decls := make([]jsonNode, len(s.FileDeclarations))
+		for i, fd := range s.FileDeclarations {
+			decls[i] = fileDeclarationToJSON(fd)
+		}
+		node["FileDeclarations"] = decls
+	}
+	if s.FileGroup != nil {
+		node["FileGroup"] = identifierToJSON(s.FileGroup)
+	}
+	// Only include IsLog/UseCurrent if we have complete declarations
+	if hasCompleteDeclarations {
+		node["IsLog"] = s.IsLog
+	}
 	if s.DatabaseName != nil {
 		node["DatabaseName"] = identifierToJSON(s.DatabaseName)
 	}
+	if hasCompleteDeclarations {
+		node["UseCurrent"] = s.UseCurrent
+	}
 	return node
 }
 

parser/parse_ddl.go

@@ -1626,6 +1626,21 @@ func (p *Parser) parseAlterDatabaseAddStatement(dbName *ast.Identifier) (ast.Sta
 		p.nextToken() // consume FILE
 		stmt := &ast.AlterDatabaseAddFileStatement{
 			DatabaseName: dbName,
+			IsLog:        false,
+		}
+		// Parse file declarations
+		decls, err := p.parseFileDeclarationList(false)
+		if err != nil {
+			return nil, err
+		}
+		stmt.FileDeclarations = decls
+		// Parse TO FILEGROUP
+		if strings.ToUpper(p.curTok.Literal) == "TO" {
+			p.nextToken() // consume TO
+			if strings.ToUpper(p.curTok.Literal) == "FILEGROUP" {
+				p.nextToken() // consume FILEGROUP
+			}
+			stmt.FileGroup = p.parseIdentifier()
 		}
 		p.skipToEndOfStatement()
 		return stmt, nil
@@ -1636,7 +1651,14 @@ func (p *Parser) parseAlterDatabaseAddStatement(dbName *ast.Identifier) (ast.Sta
 		}
 		stmt := &ast.AlterDatabaseAddFileStatement{
 			DatabaseName: dbName,
+			IsLog:        true,
+		}
+		// Parse file declarations
+		decls, err := p.parseFileDeclarationList(false)
+		if err != nil {
+			return nil, err
 		}
+		stmt.FileDeclarations = decls
 		p.skipToEndOfStatement()
 		return stmt, nil
 	case "FILEGROUP":

parser/parse_statements.go

@@ -6404,14 +6404,29 @@ func (p *Parser) parseFileDeclarationOptions() ([]ast.FileDeclarationOption, err
 			if p.curTok.Type == TokenEquals {
 				p.nextToken() // consume =
 			}
-			id := p.parseIdentifier()
-			opt := &ast.NameFileDeclarationOption{
-				LogicalFileName: &ast.IdentifierOrValueExpression{
-					Value:      id.Value,
-					Identifier: id,
-				},
-				IsNewName:  false,
-				OptionKind: "Name",
+			var opt *ast.NameFileDeclarationOption
+			if p.curTok.Type == TokenString || p.curTok.Type == TokenNationalString {
+				// Parse as string literal
+				strLit, _ := p.parseStringLiteral()
+				opt = &ast.NameFileDeclarationOption{
+					LogicalFileName: &ast.IdentifierOrValueExpression{
+						Value:           strLit.Value,
+						ValueExpression: strLit,
+					},
+					IsNewName:  false,
+					OptionKind: "Name",
+				}
+			} else {
+				// Parse as identifier
+				id := p.parseIdentifier()
+				opt = &ast.NameFileDeclarationOption{
+					LogicalFileName: &ast.IdentifierOrValueExpression{
+						Value:      id.Value,
+						Identifier: id,
+					},
+					IsNewName:  false,
+					OptionKind: "Name",
+				}
 			}
 			opts = append(opts, opt)
 

parser/testdata/AlterCreateDatabaseFilePath150/metadata.json

@@ -1 +1 @@
-{"todo": true}
+{}

parser/testdata/Baselines150_AlterCreateDatabaseFilePath150/metadata.json

@@ -1 +1 @@
-{"todo": true}
+{}