This creates the Package class to represent packages, and the
Scope class to represent scopes in general. The library functions
are worked up to support scanning scopes for declarations that are
imported by "use" clauses.
These signals are declared in the architecture and are local to
the module. The Architecture already parsed and stored these signal
declarations, but this patch adds the ability to actually emit these
signals in the generated code.
In the process of doing this, I had to regularize the elaboration
and emit of VTypes, so that it can be used in multiple places, not
just in entity headers (for ports).
I also added support for bit selects of signals. This effected a couple
places in the parser, and expressions in general.
These go into the architecture/block of their scope and will be
used by component instantiations to make sure the bindings are
correct and complete.
Also handle signal declarations. The elaborator will use these
to generate module local variables that are used by the architecture.
Rather then just relying on comparing type names all throughout
elaboration, create type description data structures and use them
during elaboration to handle proper types.
Separate elaboration from code generation in the Entity, and add
to Architectures a code generator to handle some simple cases. At
this point we have the basic structure for the VHDL compiler.
Elaboration will need a parse tree for expressions. Create one for
the expression types that are currently supported. Also add rules
and the keywords for all the remaining binary logical operators.
This patch updates the make clean target and modifies the vpath search to
match what is done in the main ivl Makefile since this one has the same
issues it does. It also adds a cppcheck target and removes the redundant
libmisc build target since the vpath already handles this.
This patch fixes the ivl build to find files in libmisc using vpath instead
of a separate target. The existing constructs caused build problems after
running a make clean. It also adds an empty checking target to vhdlpp.
Include the compiler infrastructure to vhdlpp for collecting the
file and line information and attaching it to entities and ports.
Make the parser store the file name during parse.
Create a libmisc library where I can put source files that are
used by multiple programs within the source tree.
Stephen Williams
Cary R
Pawel Szostek
Jared Casper