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Original source code for the R language compiler (Rlang-compiler/src/).

This subdirectory of the Rlang-compiler repository contains the following source code files for the original version of R compiler Rcomp, written in Common Lisp by M. Frank in 1997 (with minor modifications through 2001).

  • loader.lisp - This loads up all parts of the Rcomp program in an appropriate order.

  • util.lisp - Defines general-purpose utility functions and macros that we use.

  • infrastructure.lisp - Defines our macro-expansion-like facility for defining how to compile language constructs.

  • location.lisp - Defines some functions for working with objects that describe a variable's location in the register file or the stack.

  • environment.lisp - Defines the environment objects which map variables to their locations.

  • Files defining "macros" for expansion of language constructs:

    • regstack.lisp - Defines low-level constructs for direct manipulation of registers and the stack.

    • variables.lisp - Defines high- to low-level constructs for manipulation of variables in variable assignments (environments).

    • branches.lisp - Constructs providing intermediate- and low-level support for various kinds of branch structures for control flow.

    • expression.lisp - Constructs and low-level functions for expanding nested expressions.

    • clike.lisp - Defines constructs for various user-level C-like operators.

    • print.lisp - Defines a few very simple constructs for producing output.

    • controlflow.lisp - Defines user-level to intermediate-level control flow constructs such as conditionals and looping.

    • subroutines.lisp - Provides high- and low-level support for subroutines.

    • staticdata.lisp - Defines constructs for defining static data objects. Currently this is the only way to provide input to a program.

    • program.lisp - Defines very high-level constructs for wrapping around the entire program.

    • library.lisp - Defines constructs that expand into code for standard subroutine libraries. Currently the library is very minimal.

  • files.lisp - Provides support for reading the source code to compile from a file.

Additional source code for testing purposes can be found in the test/ directory (parallel to this directory).