Hi, could anyone shed a light about the Frond-End and Back-End?
I understood the Back-End part, where "roughly" each compiler
will generate a machine code based on a IR (Intermediate
Representation) generated by the Front-End.
But I'm having trouble with the Front-End part, and for what I
gather here: https://wiki.dlang.org/DMD_Source_Guide
The front-end (DMD-FE) implements all things D-specific: lexing
and parsing D syntax, instantiating templates, producing error
messages, etc. The same front-end code is used by DMD, GDC and
LDC.
Note the ending: "The same front-end code is used by DMD, GDC and
LDC."
But what the meaning of this sentence?
These are 3 different projects so how they share the SAME
front-end or how they are connected? Is it a source written in
*.CPP for example and the 3 compilers uses the same source? Or
the "SAME" means each compiler needs to implement the same code?
Looking over Github: https://github.com/dlang/ I see DMD, Phobos
and so on, but no separated project called Front-End.
Thanks in advance.
