EDT:Extensible Compiler Development
This page covers the work being done to make the compiler more extensible. Validation, for example, will be made extensible. A new model will be created so that bound AST will use IRs instead of bindings. The old binding model will still exist so that tooling written against it does not need to be rewritten. New tooling will be encouraged to use the new IR-based model.
Where to get the code
CVS repository: :extssh:<user>@dev.eclipse.org:/cvsroot/tools
How to run the code
Right now you can only compile in SDK mode (the IDE builder will NOT work). Take a look at the "EGL2IR XML" Java Application launch configuration that's predefined. This will prompt you a couple times if you run it, or you can create a copy of this launch configuration and hard-code some values if you don't want to be prompted. Here's an example of hardcoded arguments:
-eglpath "/home/justin/.workspaces/edt-ext/test/EGLSource/" -irDestination "/home/justin/.workspaces/edt-ext/test/batchbin" -xmlOut "/home/justin/.workspaces/edt-ext/test/EGLSource/pkg/prog.egl"
Several changes to the parser/lexer grammer files will be made:
- Remove primitive types
- Add ability for name types to include parameters. This is to support parameterizable types like eDecimal(5,2). This will requie the new expression to change, since the arguments to constructors will now be on the type.
- Refactor the isNullable flag to be on fields, function returns and array elements, instead of being on the type.
- Remove old keywords, such as FIELD and SQLNULLABLE from function parms