src/expr-impl.h

   1 #ifndef _GNM_EXPR_IMPL_H_
   2 # define _GNM_EXPR_IMPL_H_
   3
   4 #include <gnumeric.h>
   5 #include <numbers.h>
   6 #include <parse-util.h>
   7
   8
   9 G_BEGIN_DECLS
  10
  11 struct _GnmExprConstant {
  12         guint8 oper;
  13         GnmValue const *value;
  14 };
  15
  16 struct _GnmExprFunction {
  17         guint8 oper;
  18         int argc;
  19         GnmFunc *func;
  20         GnmExprConstPtr *argv;
  21 };
  22
  23 struct _GnmExprUnary {
  24         guint8 oper;
  25         GnmExpr const *value;
  26 };
  27
  28 struct _GnmExprBinary {
  29         guint8 oper;
  30         GnmExpr const *value_a;
  31         GnmExpr const *value_b;
  32 };
  33
  34 /* We could break this out into multiple types to be more space efficient */
  35 struct _GnmExprName {
  36         guint8 oper;
  37         Sheet *optional_scope;
  38         Workbook *optional_wb_scope;
  39         GnmNamedExpr *name;
  40 };
  41
  42 struct _GnmExprCellRef {
  43         guint8 oper;
  44         GnmCellRef ref;
  45 };
  46
  47 struct _GnmExprArrayCorner {
  48         guint8 oper;
  49         guint32 cols, rows;
  50         GnmValue *value;        /* Last array result */
  51         GnmExpr const *expr;    /* Real Expression */
  52 };
  53 struct _GnmExprArrayElem {
  54         guint8 oper;
  55         guint32 x, y;
  56 };
  57
  58 struct _GnmExprSet {
  59         guint8 oper;
  60         int argc;
  61         GnmExprConstPtr *argv;
  62 };
  63
  64 union _GnmExpr {
  65         GnmExprConstant         constant;
  66         GnmExprFunction         func;
  67         GnmExprUnary            unary;
  68         GnmExprBinary           binary;
  69         GnmExprName             name;
  70         GnmExprCellRef          cellref;
  71         GnmExprArrayCorner      array_corner;
  72         GnmExprArrayElem        array_elem;
  73         GnmExprSet              set;
  74 };
  75
  76 #define GNM_EXPR_GET_OPER(e_) (0 ? (e_) == (GnmExpr const *)0 : (GnmExprOp)*(guint8*)(e_))
  77
  78 #define gnm_expr_constant_init(expr, val)       \
  79 do {                                            \
  80         (expr)->oper = GNM_EXPR_OP_CONSTANT;    \
  81         (expr)->value = val;                    \
  82 } while (0)
  83
  84
  85 struct _GnmExprSharer {
  86         GHashTable *exprs;
  87
  88         int nodes_in, nodes_stored, nodes_killed;
  89         unsigned ref_count;
  90 };
  91
  92
  93 G_END_DECLS
  94
  95 #endif /* _GNM_EXPR_IMPL_H_ */