api/vm.h

   1 #ifndef _API_VM_H_
   2 #define _API_VM_H_
   3
   4 #include <stddef.h>
   5 #include <stdbool.h>
   6 #include "../src/expression.h"
   7
   8 typedef enum
   9 {
  10         MODULE_PLAIN,
  11         MODULE_NATIVE,
  12 } UwUVMModuleType;
  13
  14 typedef struct
  15 {
  16         void *(*copy  )(void *data);
  17         void  (*delete)(void *data);
  18         char *(*print )(void *data);
  19 } UwUVMNativeType;
  20
  21 typedef struct
  22 {
  23         void *data;
  24         UwUVMNativeType *type;
  25 } UwUVMNativeValue;
  26
  27 typedef struct UwUVMArgs
  28 {
  29         size_t num;
  30         struct UwUVMValue       **evaluated;
  31         struct UwUVMExpression *unevaluated;
  32         struct UwUVMArgs *super;
  33 } UwUVMArgs;
  34
  35 typedef struct UwUVMValue (*UwUVMNativeFunction)(UwUVMArgs *args);
  36
  37 typedef struct
  38 {
  39         UwUVMModuleType type;
  40         union
  41         {
  42                 struct UwUVMExpression *plain;
  43                 UwUVMNativeFunction native;
  44         } value;
  45 } UwUVMFunction;
  46
  47 typedef struct UwUVMValue
  48 {
  49         enum
  50         {
  51                 VT_INT,
  52                 VT_STR,
  53                 VT_REF,
  54                 VT_NAT,
  55         } type;
  56         union
  57         {
  58                 int           int_value;
  59                 char         *str_value;
  60                 UwUVMFunction   *ref_value;
  61                 UwUVMNativeValue nat_value;
  62         } value;
  63 } UwUVMValue;
  64
  65 typedef struct UwUVMExpression
  66 {
  67         ExpressionType type;
  68         union
  69         {
  70                 struct
  71                 {
  72                         UwUVMFunction *function;
  73                         struct UwUVMExpression *args;
  74                         size_t           num_args;
  75                 }           cll_value;
  76                 int         int_value;
  77                 char       *str_value;
  78                 UwUVMFunction *ref_value;
  79         } value;
  80 } UwUVMExpression;
  81
  82 typedef struct
  83 {
  84         void *api_library;
  85         UwUVMFunction *main_function;
  86         UwUVMFunction **functions;
  87         size_t   num_functions;
  88         void     **libraries;
  89         size_t num_libraries;
  90 } UwUVMProgram;
  91
  92 void uwuvm_free_value(UwUVMValue value);
  93 void uwuvm_free_args(UwUVMArgs *args);
  94 UwUVMValue uwuvm_copy_value(UwUVMValue value);
  95 UwUVMValue uwuvm_get_arg(UwUVMArgs *args, size_t i);
  96 UwUVMValue uwuvm_evaluate_expression(UwUVMExpression *expression, UwUVMArgs *args);
  97 UwUVMValue uwuvm_run_function(UwUVMFunction *function, UwUVMArgs args);
  98
  99 #endif