Compiler [Revelation On-Line Wiki]

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====== Compiler ======

Compiler directives instruct the compiler to perform certain tasks while a procedure is being compiled into object code. Compiler commands are not used during the execution of the procedure.


^Command^Description^
|[[the_semicolon_operator|; (semicolon)]]|Delimits a new line (allows multiple commands to appear on the same line).|
|[[dollar_insert|$INSERT statement]]|Inserts source code from another procedure into the current procedure at this point. The default location for the storage of BASIC+ source code is the SYSPROCS table.|
|[[comments|*, !, /*...*/]]|Designates that the following string is a comment, and not an executable part of the code.|
|[[contract_blocks|Begin Condition \ Pre: \ Post: \ End Condition]]|Begins the [[contract_blocks|contract block]]. This block is ended with an End Condition statement, and before that, you must have at least Pre: and Post: statements.|
|Compile statement|Begins a stored procedure declaration (optional). One of two types of stored procedure must be specified: Function, or Subroutine.|
|[[declare|Declare statement]]|Causes the compiler to recognize calls to subroutines or user-defined functions.|
|[[end|End statement]]|If not part of a multi-line statement (such as If ... Then), tells the compiler to stop compilation at that point.|
|[[equate|Equate or Equ statement]]|Establishes equivalency between a constant and a value, or between a constant and an expression (example: Equate BEEP$ To Char(7)).|
|[[function_statement|Function statement]]|Directs the compiler to tag the object code of a procedure as being a user-defined function.|
|LineMark|Inserts a linemark character into the compiled code of code compiled without linemarks.|
|[[subroutine|Subroutine statement]]|Directs the compiler to tag the object code of a procedure as being an external subroutine. An external subroutine does not return a value.|