Files modified in order to add SQL stuff:

IronPython\External\ODAC\*
IronPython\External\vcs_web

IronPython\Demo\*

IronPython\Languages\IronPython\Scripts\generate_ops.py

IronPython\Languages\IronPython\IronPython\IronPython.csproj

IronPython\Languages\IronPython\IronPython\Compiler\Tokenizer.cs
IronPython\Languages\IronPython\IronPython\Compiler\TokenKind.Generated.cs
IronPython\Languages\IronPython\IronPython\Compiler\Parser.cs
IronPython\Languages\IronPython\IronPython\Compiler\ParseSql.cs

IronPython\Languages\IronPython\IronPython\Compiler\Ast\AstMethods.cs
IronPython\Languages\IronPython\IronPython\Compiler\Ast\PythonWalker.Generated.cs
IronPython\Languages\IronPython\IronPython\Compiler\Ast\SqlConnectionStatement.cs
IronPython\Languages\IronPython\IronPython\Compiler\Ast\SqlQueryExpression.cs
IronPython\Languages\IronPython\IronPython\Compiler\Ast\SqlStatement.cs

IronPython\Languages\IronPython\IronPython\Runtime\PySwanSqlRunner.cs
IronPython\Languages\IronPython\IronPython\Runtime\Operations\PythonOps.cs



Description of modified files (why they're important):


IronPython\External\ODAC\*
-- Contains all of the Oracle DB connectivity stuff, must be installed for SQL
-- stuff to work.

IronPython\External\vcs_web
-- Installer for visual studio. Needed to navigate the .csproj and (maybe) for
-- installing msbuild.

IronPython\Demo\*
-- Our presentation and associated images and demo files.

IronPython\Languages\IronPython\Scripts\generate_ops.py
-- This is used to automatically generate a list of tokens. generate_ops.py
-- modifies TokenKind.Generated.cs

IronPython\Languages\IronPython\IronPython\IronPython.csproj
-- You need to modify this to add new references to dll's (like the ODBC stuff)
-- and for adding new classes (typically nodes to the AST)
-- This is also the file you open in Visual Studio to navigate the project.

IronPython\Languages\IronPython\IronPython\Compiler\Tokenizer.cs
-- This is where the individual tokens are parsed. Not usually necessary to look
-- here, but can be useful to understand some of the tokenizing API.

IronPython\Languages\IronPython\IronPython\Compiler\TokenKind.Generated.cs
-- Should be auto-generated. Lists the different "Kinds" of tokens.

IronPython\Languages\IronPython\IronPython\Compiler\Parser.cs
-- This is the parse tree. This implements the BNF Python grammar exactly. Your
-- understanding of how IronPython works starts here.

IronPython\Languages\IronPython\IronPython\Compiler\ParseSql.cs
-- We broke off our SQL parsing stuff into a separate file. We don't do a very good
-- job parsing, because that was put off while we got other stuff working.

IronPython\Languages\IronPython\IronPython\Compiler\Ast\AstMethods.cs
-- This is the big list of calls that are targeted by "Call" objects placed on the
-- AST during the Reduce() phase. This will direct those "Call"s to the correct
-- function in PythonOps.cs

IronPython\Languages\IronPython\IronPython\Compiler\Ast\PythonWalker.Generated.cs
-- Some auto-generated stuff that gets updated with new Ast Node types when the 
-- .csproj is updated with new references. "SqlConnectionStatement", 
-- "SqlQueryExpression" and "SqlStatement" are examples of our new Ast Node types.
-- We really don't know what these PythonWalker things do, to be honest.

IronPython\Languages\IronPython\IronPython\Compiler\Ast\SqlConnectionStatement.cs
-- A new type of node that is placed on the AST by the parser. Reduce() will be
-- called, and this node type will be transformed into a Call object pointing to
-- MakeConnection in AstMethods.cs

IronPython\Languages\IronPython\IronPython\Compiler\Ast\SqlQueryExpression.cs
-- A new type of node that is placed on the AST by the parser. Reduce() will be
-- called, and this node type will be transformed into a Call object pointing to
-- ExecuteSqlQuery in AstMethods.cs

IronPython\Languages\IronPython\IronPython\Compiler\Ast\SqlStatement.cs
-- A new type of node that is placed on the AST by the parser. Reduce() will be
-- called, and this node type will be transformed into a Call object pointing to
-- ExecuteSql in AstMethods.cs

IronPython\Languages\IronPython\IronPython\Runtime\PySwanSqlRunner.cs
-- This is where the actual runtime behavior resides. In this case, 
-- PySwanSqlRunner.cs establishes and maintains an Oracle DB connection,
-- and hands off queries to the Oracle DB.

IronPython\Languages\IronPython\IronPython\Runtime\Operations\PythonOps.cs
-- PythonOps.cs contains the methods that are called by AstMethods.cs via reflection
-- and some helper functions. After doing some massaging of input, this passes
-- the completed SQL string over to PySwanSqlRunner.cs methods.