src/jitcs_int_adt_dynslice.h

   1 //===-- evm/function.h - Class to represent a single basic block --*- C++ -*-===//
   2 //
   3 // A basicblock contains nodes, and must end in a terminal instruction node.
   4 // Nodes can be instructions, constants. Each node may produce more than one
   5 // result.
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #ifndef _JITCS_INT_ADT_DYNSLICE_H_
  10 #define _JITCS_INT_ADT_DYNSLICE_H_
  11
  12 #include "jitcs_base.h"
  13 #include "jitcs_typefuncs.h"
  14 #include "jitcs_adt_slice.h"
  15
  16 namespace jitcs {
  17 class TempAllocator;
  18
  19 template <typename T, unsigned N>
  20 struct DynSlice : public Slice<T> {
  21   T _short_data[N];
  22
  23   DynSlice(size_t n)
  24     : Slice<T>(n <= N ? _short_data : new T[n], n)
  25   {}
  26   ~DynSlice() {
  27     if (!isLocalData()) delete[] this->_ptr;
  28   }
  29   void reinit(size_t n) {
  30     if (!isLocalData()) delete[] this->_ptr;
  31     this->_ptr = n <= N ? _short_data : new T[n];
  32     this->_size = n;
  33   }
  34   bool isLocalData() const { return this->_ptr == _short_data; }
  35 };
  36
  37 } // end of namespace jitcs
  38
  39 #endif
  40 // _JITCS_INT_ADT_DYNSLICE_H_