Adding new handler for script as requests (#552)

* added new scripting handler for script as request
*change the language service to get the peek definition using scripting as operatin

src/Microsoft.SqlTools.ServiceLayer/Scripting/Contracts/ScriptingOptions.cs

@@ -15,6 +15,11 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </summary>
         public bool? ScriptAnsiPadding { get; set; } = false;
 
+        /// <summary>
+        /// Returns Generate ANSI padding statements
+        /// </summary>
+        public bool? AnsiPadding { get { return ScriptAnsiPadding; } }
+
         /// <summary>
         /// Append the generated script to a file
         /// </summary>
@@ -33,6 +38,11 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </summary>
         public bool? ConvertUDDTToBaseType { get; set; } = false;
 
+        /// <summary>
+        /// Returns ConvertUDDTToBaseType
+        /// </summary>
+        public bool? ConvertUserDefinedDataTypesToBaseType { get { return ConvertUDDTToBaseType; } }
+
         /// <summary>
         /// Generate script for dependent objects for each object scripted.
         /// </summary>
@@ -49,6 +59,11 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </remarks>
         public bool? IncludeDescriptiveHeaders { get; set; } = true;
 
+        /// <summary>
+        /// Returns IncludeDescriptiveHeaders
+        /// </summary>
+        public bool? IncludeHeaders { get { return IncludeDescriptiveHeaders; } }
+
         /// <summary>
         /// Check that an object with the given name exists before dropping or altering or that an object with the given name does not exist before creating.
         /// </summary>
@@ -64,6 +79,11 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </summary>
         public bool? ScriptDriIncludeSystemNames { get; set; } = false;
 
+        /// <summary>
+        /// Returns ScriptDriIncludeSystemNames
+        /// </summary>
+        public bool? DriIncludeSystemNames { get { return ScriptDriIncludeSystemNames; } }
+
         /// <summary>
         /// Include statements in the script that are not supported on the specified SQL Server database engine type.
         /// </summary>
@@ -77,6 +97,11 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </remarks>
         public bool? SchemaQualify { get; set; } = true;
 
+        /// <summary>
+        /// Returns SchemaQualify
+        /// </summary>
+        public bool? SchemaQualifyForeignKeysReferences { get { return SchemaQualify; } }
+
         /// <summary>
         /// Script options to set bindings option.
         /// </summary>
@@ -87,6 +112,11 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </summary>
         public bool? Collation { get; set; } = false;
 
+        /// <summary>
+        /// Returns false if Collation is true
+        /// </summary>
+        public bool? NoCollation { get { return !Collation; } }
+
         /// <summary>
         /// Script the default values.
         /// </summary>
@@ -95,6 +125,12 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </remarks>
         public bool? Default { get; set; } = true;
 
+        /// <summary>
+        /// Returns the value of Default Property
+        /// </summary>
+        public bool? DriDefaults { get { return Default; } }
+
+
         /// <summary>
         /// Script Object CREATE/DROP statements.  
         /// Possible values: 
@@ -116,6 +152,12 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </remarks>
         public bool? ScriptExtendedProperties { get; set; } = true;
 
+        /// <summary>
+        /// Returns the value of ScriptExtendedProperties Property
+        /// </summary>
+        public bool? ExtendedProperties { get { return ScriptExtendedProperties; } }
+
+
         /// <summary>
         /// Script only features compatible with the specified version of SQL Server.  Possible values:
         ///   Script90Compat
@@ -162,6 +204,11 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </summary>
         public bool? ScriptObjectLevelPermissions { get; set; } = false;
 
+        /// <summary>
+        /// Returns the value of ScriptObjectLevelPermissions Property
+        /// </summary>
+        public bool? Permissions { get { return ScriptObjectLevelPermissions; } }
+
         /// <summary>
         /// Script owner for the objects.
         /// </summary>
@@ -179,6 +226,12 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </remarks>
         public string ScriptStatistics { get; set; } = "ScriptStatsNone";
 
+        /// <summary>
+        /// Returns the value of ScriptStatistics Property
+        /// </summary>
+        public string Statistics { get { return ScriptStatistics; } }
+
+
         /// <summary>
         /// Generate USE DATABASE statement.
         /// </summary>
@@ -201,6 +254,12 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </summary>
         public bool? ScriptChangeTracking { get; set; } = false;
 
+        /// <summary>
+        /// Returns the value of ScriptChangeTracking Property
+        /// </summary>
+        public bool? ChangeTracking { get { return ScriptChangeTracking; } }
+
+
         /// <summary>
         /// Script the check constraints for each table or view scripted.
         /// </summary>
@@ -209,11 +268,22 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </remarks>
         public bool? ScriptCheckConstraints { get; set; } = true;
 
+        /// <summary>
+        /// Returns the value of ScriptCheckConstraints Property
+        /// </summary>
+        public bool? DriChecks { get { return ScriptCheckConstraints; } }
+
         /// <summary>
         /// Scripts the data compression information.
         /// </summary>
         public bool? ScriptDataCompressionOptions { get; set; } = false;
 
+        /// <summary>
+        /// Returns the value of ScriptDataCompressionOptions Property
+        /// </summary>
+        public bool? ScriptDataCompression { get { return ScriptDataCompressionOptions; } }
+
+
         /// <summary>
         /// Script the foreign keys for each table scripted.
         /// </summary>
@@ -222,11 +292,23 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </remarks>
         public bool? ScriptForeignKeys { get; set; } = true;
 
+        /// <summary>
+        /// Returns the value of ScriptForeignKeys Property
+        /// </summary>
+        public bool? DriForeignKeys { get { return ScriptForeignKeys; } }
+
+
         /// <summary>
         /// Script the full-text indexes for each table or indexed view scripted.
         /// </summary>
         public bool? ScriptFullTextIndexes { get; set; } = true;
 
+        /// <summary>
+        /// Returns the value of ScriptFullTextIndexes Property
+        /// </summary>
+        public bool? FullTextIndexes { get { return ScriptFullTextIndexes; } }
+
+
         /// <summary>
         /// Script the indexes (including XML and clustered indexes) for each table or indexed view scripted.
         /// </summary>
@@ -235,6 +317,12 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </remarks>
         public bool? ScriptIndexes { get; set; } = true;
 
+        /// <summary>
+        /// Returns the value of ScriptIndexes Property
+        /// </summary>
+        public bool? DriIndexes { get { return ScriptIndexes; } }
+
+
         /// <summary>
         /// Script the primary keys for each table or view scripted
         /// </summary>
@@ -243,11 +331,23 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// </remarks>
         public bool? ScriptPrimaryKeys { get; set; } = true;
 
+        /// <summary>
+        /// Returns the value of ScriptPrimaryKeys Property
+        /// </summary>
+        public bool? DriPrimaryKey { get { return ScriptPrimaryKeys; } }
+
+
         /// <summary>
         /// Script the triggers for each table or view scripted
         /// </summary>
         public bool? ScriptTriggers { get; set; } = true;
 
+        /// <summary>
+        /// Returns the value of ScriptTriggers Property
+        /// </summary>
+        public bool? Triggers { get { return ScriptTriggers; } }
+
+
         /// <summary>
         /// Script the unique keys for each table or view scripted.
         /// </summary>
@@ -255,5 +355,11 @@ namespace Microsoft.SqlTools.ServiceLayer.Scripting.Contracts
         /// The default value is true.
         /// </remarks>
         public bool? UniqueKeys { get; set; } = true;
+
+        /// <summary>
+        /// Returns the value of UniqueKeys Property
+        /// </summary>
+        public bool? DriUniqueKeys { get { return UniqueKeys; } }
+
     }
 }