There were significant overlaps in the names of data structures
between the compiler and the language that made it necessary
to litter the code with P4Lang.xxxx. This refactor removes that
requirement in most places (Parser is ambiguous wherever TreeSitter
is used -- cannot avoid that!)
Signed-off-by: Will Hawkins <hawkinsw@obs.cr>
In P4, parsers are considered types. Those parsers are instantiated.
The instantiated parsers are values. Previously, gp4 treated a parser
type and a parser value as identical. This PR makes that difference
clear _and_ sets the stage for the future.
TODO: Make the same distinction between control and action types and
values.
Signed-off-by: Will Hawkins <hawkinsw@obs.cr>
Implement a generic visitor for components of a P4 program and use
it to start P4 code generation (according to the behavioral model).
Signed-off-by: Will Hawkins <hawkinsw@obs.cr>
Will Hawkins