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WBRASWELL / RPerl-7.000000 / docs / perl_modes.txt 

            

              
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[[[ MODES ]]]
        EXECUTION (aka RUN): the process used to execute the CODE
        INTERPRET
        JUST-IN-TIME COMPILE (aka JIT, DYNAMIC COMPILE)
        COMPILE (aka STATIC COMPILE)
    SOURCE CODE (aka CODE): the language used to write the text representation of the OPS and TYPES
        PERL
        RPERL
        CPP
        C
        XS
    OPERATIONS (aka OPS): the language used to execute the operations on the TYPES
        PERL
        CPP
    DATA TYPES (aka TYPES): the language used to store the data types
        PERL_DYNAMIC (aka NONE, should be aka PERL)
        PERL_STATIC (aka PERL, should be aka RPERL)
        CPP
     
    DATA TYPE CHECKING (aka CHECK): function & method arguments must be correct data type, naturally on for CPP TYPES
        OFF
        ON (no report)
        TRACE (report variable name & calling function)
INTERPRET run,  PERL code,      PERL ops,   PERL_DYNAMIC types, OFF check       = NORMAL PERL
INTERPRET run,  PERL code,      PERL ops,   PERL_STATIC types,  TRACE check     = RPERL PERLOPS_PERLTYPES aka PURE-PERL MODE
...
COMPILE run,    RPERL code,     CPP ops,    PERL_STATIC types,  TRACE check = RPERL CPPOPS_PERLTYPES MODE
COMPILE run,    RPERL code,     CPP ops,    CPP types,          TRACE check = RPERL CPPOPS_CPPTYPES MODE
...
INTERPRET run,  C code,                 PERL ops,   PERL_DYNAMIC types, OFF check   = B::C OUTPUT
COMPILE run,    C code,                 PERL ops,   PERL_DYNAMIC types, OFF check   = B::CC OUTPUT non-typed
COMPILE run,    C code,                 PERL ops,   PERL_STATIC types,  TRACE check = B::CC OUTPUT typed
...
[[[ COMPONENTS ]]]
SOURCE CODE: highest-level human-readable text data
ABSTRACT SYNTAX TREE (aka AST): next-to-highest-level data structure representation of SOURCE CODE
DOCUMENT SYNTAX TREE (aka DOCTREE): higher-level static-analysis AST
OPERATIONS SYNTAX TREE (aka OPTREE): lower-level dynamic-analysis AST
BYTECODE: medium-level intermediate representation, used as MACHINE CODE for VIRTUAL MACHINE
ASSEMBLY CODE: next-to-lowest-level text representation of MACHINE CODE
MACHINE CODE: lowest-level computer-readable binary data
VIRTUAL MACHINE: non-physical software processor, executes OPTREE or BYTECODE
MACHINE: physical hardware processor, executes MACHINE CODE
TOKEN: individual SOURCE CODE component
[[[ ACTIONS ]]]
LEXICAL ANALYSIS (aka LEXER, TOKENIZE): convert SOURCE CODE to TOKENS
PARSE (aka DECOMPOSE, DECONSTRUCT, ANALYZE): convert SOURCE CODE to AST, or TOKENS to AST, same language
DEPARSE (aka COMPOSE, CONSTRUCT, SYNTHESIZE): convert AST to SOURCE CODE, during WALK TREE, same language
GENERATE (aka EMIT, RENDER): convert AST to SOURCE CODE, during WALK TREE, different languages
STRINGIFY (aka PRETTY PRINT, SERIALIZE): convert DATA TYPES to SOURCE CODE
WALK TREE: visit every node in AST
TRANSLATE: convert SOURCE CODE to SOURCE CODE, or AST to AST, or MACHINE CODE to MACHINE CODE, different languages
COMPILE: convert SOURCE CODE to BYTECODE, or SOURCE CODE to MACHINE CODE, before EXECUTION
DECOMPILE: convert BYTECODE to SOURCE CODE, or MACHINE CODE to SOURCE CODE
JIT: convert SOURCE CODE to MACHINE CODE, or BYTECODE to MACHINE CODE, during EXECUTION
INTERPRET: convert SOURCE CODE to OPTREE, or SOURCE CODE to BYTECODE, during EXECUTION
ASSEMBLE: convert ASSEMBLY CODE to MACHINE CODE
DISASSEMBLE: convert MACHINE CODE to ASSEMBLY CODE
EXECUTION (aka RUNTIME): convert OPERATIONS to DATA, and DATA to different DATA