Interpreter loading and initialization

In the CAM system, loading the interpreter into memory consists of the following steps:

  • Reading the interpreter settings file.
  • Loading the list of registers from the interpreter settings file.
  • Loading the parent interpreter into memory (loading of the parent interpreter repeats all the steps of loading the interpreter into memory in the same order).
  • Loading the interpreter library into memory and getting the INCT_Interpreter interface (by calling the NCT_GetInterface function of the loaded library).
  • Checking that the identifiers of the settings file and the library match (the library identifier is obtained by calling the INCT_Interpreter.GetIdentifier function), as well as the identifiers of the parent interpreter.
  • Passing the values of the interpreter's own parameters if the interpreter object implements the INCT_CustomInterpreter interface (calling the INCT_CustomInterpreter.SetCustomValues method; the values are taken from the *.sncix file; see List of used types). This step is performed only when the interpreter is loaded for work, not for checking and not for reading its parameters in the Interpreter configurator window.
  • Loading the list of registers from the library (calling the INCT_Interpreter.GetRegisters function).
  • Loading the lists of registers of the parent interpreters.

As a result of loading the interpreter, the interpreter library and its parent libraries (if any) are loaded, and the resulting (base) list of registers is formed. The registers of the settings file take precedence over the registers of the library (i.e. override them), and the registers of descendant interpreters take precedence over the registers of parent interpreters if a register with the same name is present in both lists.

Initialization of the interpreter consists of the following steps:

  • Initialization of the parent interpreters (initialization of the parent interpreter repeats all the steps of initializing the interpreter in the same order).
  • The CAM system passes its interfaces to the library one after another (the INCT_Interpreter.SetInterface method of the interpreter library is called several times, according to the number of interfaces passed).
  • Initialization of the library (calling the INCT_Interpreter.Initialize method).

As a result of initialization, the interpreter receives the CAM system objects that implement the interfaces for:

  • access to the formed (base) list of registers INCT_SysState;
  • managing the NC program text analysis settings INCT_Analyzer;
  • access to the list of objects to interpret INCT_BlockExecArray;
  • getting the equipment settings INCT_Equipment;
  • forming the tool path in machine axes (if UseGeomCLData = False in the interpreter settings file) INCT_CLData;
  • forming the tool path in geometric axes (if UseGeomCLData = True) INCT_GeomCLData;
  • interaction with the CAM system kernel that serves the interpreter INCT_Kernel;
  • the parent interpreter INCT_Interpreter (if any);
  • the contour (the interface passed to INCT_Kernel.InterpreteContour), if the interpreter runs in contour mode;
  • protection INCT_Connect, for protected interpreters only.

Then the initialization method of the interpreter library is executed.