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Re: [cdt-dev] DSF/GDB: context types required to create an expression

On 21/06/2010 2:10 PM, Pawel Piech wrote:
I may be useful to have a little bit of a design discussion around this. Are you planning to implement a register service which delegates to the expression service for evaluation (PDA example does this). Or are you going to create a register service which re-uses the MIvariableManager and does a lot of similar stuff that the expression service does. The former would be much simpler I think, though the latter will give you more control in case you run into performance or other issues.


For our commercial product I added the following new interface:

public interface IGDBRegisters extends IRegisters {

public interface IGDBRegisterDMContext extends IRegisterDMContext, IExpressionDMContext {

public interface IGDBRegisterDMData extends IRegisterDMData, IExpressionDMData {

The implementation of of this service extends the existing MIRegisters class. I also implemented my own RegisterVMNode that extends GdbVariableVMNode. Note that all these changes are GDB/MI specific and no changes in the basic DSF services is required.

This also answers Marc's question: my register DM context extends MIExpressionDMC and requires a parent.


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