Nick Wellnhofer created CLOWNFISH-25:
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Summary: Implement CFC as Clownfish project
Key: CLOWNFISH-25
URL: https://issues.apache.org/jira/browse/CLOWNFISH-25
Project: Apache Lucy-Clownfish
Issue Type: Improvement
Components: Compiler
Reporter: Nick Wellnhofer
Assignee: Nick Wellnhofer
I think it's really important to implement CFC as a Clownfish project as soon
as possible. This has several benefits:
* Increases productivity and performance.
* Every additional Clownfish project helps with refinement of the runtime API.
* Documentation can be easily generated.
* Allows to share code between the runtime and compiler.
If CFC depends on the runtime and the runtime needs CFC to compile, this
creates a bootstrapping problem that can be resolved as follows:
* Make the Clownfish runtime self-hosting.
** Don't create the CFC-generated files on every build.
** Add an initial version of the generated files to version control. This must
de done separately for every host language.
** Only recreate these files on demand.
** {{cfish_platform.h}} is an exception. Provide a static version that includes
{{charmony.h}} and uses the CHY macros directly.
* Make the Clownfish runtime available to CFC.
** Generate Clownfish runtime headers and add them to CFC version control to
make CFC self-hosting like the runtime.
** Link CFC against the Clownfish runtime.
Then we could proceed and
* Switch CFC over to Clownfish strings.
** Start with high-level functions like CFCUtil_write_file. Work downwards to
lower-level functions.
* Implement CFC classes as Clownfish classes. This can be done base class by
base class.
Working on the .cfh files of the compiler would look like this:
* Keep a CFC binary from a previous build around.
* Change .cfh files and rebuild the generated files using the old CFC binary.
* Rebuild CFC.
* Recreate the the generated files using the the freshly built CFC.
* Check whether output is OK.
* Commit changes to generated files.
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