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1 #ifndef __NODE_H__
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2 #define __NODE_H__
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3
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4 #include <string>
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5 #include <vector>
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6 #include <map>
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7 #include <functional>
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8 #include <algorithm>
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9 #include "location.hh"
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10 #include "vm.h"
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11
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12 class compiler;
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13 class CNode;
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14 class CValueNode;
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15 class CArgDef;
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16
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17 // 配列
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18
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19 template<typename T>
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20 class CNodeList {
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21 struct delete_object {
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22 void operator()(T *ptr){ delete ptr; }
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23 } ;
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24
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25 public:
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26 CNodeList(const yy::location& l, T *node)
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27 {
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28 args.push_back(node);
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29 }
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30 ~CNodeList()
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31 {
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32 std::for_each(args.begin(), args.end(), delete_object());
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33 }
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34
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35 CNodeList<T> *Add(const yy::location& l, T *add)
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36 {
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37 args.push_back(add);
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38 return this;
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39 }
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40
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41 template<typename Fn>
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42 void for_each(const Fn &func)
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43 {
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44 std::for_each(args.begin(), args.end(), func);
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45 }
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46
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47 template<typename Fn>
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48 void for_each_rev(const Fn &func)
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49 {
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50 std::for_each(args.rbegin(), args.rend(), func);
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51 }
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52
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53 void analyze(compiler *c)
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54 {
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55 std::for_each(args.begin(), args.end(), std::bind2nd(std::mem_fun(&T::analyze), c));
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56 }
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57
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58 size_t size() const { return args.size(); }
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59 T *get(size_t idx) { return args[idx]; }
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60 T *operator[](size_t idx) { return args[idx]; }
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61 const T *get(size_t idx) const { return args[idx]; }
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62 const T *operator[](size_t idx) const { return args[idx]; }
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63
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64 private:
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65 std::vector<T*> args;
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66 } ;
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67
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68 typedef CNodeList<CNode> CArgs;
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69
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70 // ノードの命令
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71 enum {
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72 OP_NEG,
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73 OP_PLUS,
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74 OP_MINUS,
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75 OP_TIMES,
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76 OP_DIVIDE,
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77 OP_MOD,
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78 OP_EQ,
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79 OP_NE,
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80 OP_GT,
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81 OP_GE,
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82 OP_LT,
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83 OP_LE,
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84 OP_VALUE,
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85 OP_CONST,
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86 OP_RANDFUNC,
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87 } ;
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88
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89 // ノード
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90
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91 class CNode {
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92 public:
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93 CNode(const yy::location& l, int op, CNode *left, CNode *right=0)
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94 : l_(l), op_(op), left_(left), right_(right), value_(0), string_(0)
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95 {
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96 }
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97 CNode(const yy::location& l, int op, int value)
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98 : l_(l), op_(op), left_(0), right_(0), value_(value), string_(0)
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99 {
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100 }
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101 CNode(const yy::location& l, int op, std::string *str)
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102 : l_(l), op_(op), left_(0), right_(0), value_(0), string_(str)
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103 {
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104 }
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105 CNode(const yy::location& l, int op, std::string *str, CNode *node)
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106 : l_(l), op_(op), left_(node), right_(0), value_(0), string_(str)
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107 {
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108 }
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109 virtual ~CNode()
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110 {
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111 delete left_;
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112 delete right_;
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113 delete string_;
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114 }
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115
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116 virtual void push(compiler *c) const;
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117 virtual void pop(compiler *c) const;
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118
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119 const yy::location &location() const { return l_; }
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120 int op() const { return op_; }
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121 int value() const { return value_; }
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122 const std::string &string() const { return *string_; }
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123 const CNode *left() const { return left_; }
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124 const CNode *right() const { return right_; }
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125
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126 static CNode *MakeNode(compiler &c, const yy::location& l, int op, CNode *left, CNode *right=0);
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127
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128 protected:
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129 const yy::location l_;
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130 int op_;
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131 int value_;
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132 std::string *string_;
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133 CNode *left_;
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134 CNode *right_;
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135 } ;
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136
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137 // 変数ノード
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138
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139 class CValueNode: public CNode {
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140 public:
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141 CValueNode(const yy::location& l, std::string *name, CNode *node=NULL)
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142 : CNode(l, OP_VALUE, name, node)
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143 {
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144 }
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145
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146 void push(compiler *c) const;
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147 void pop(compiler *c) const;
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148 } ;
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149
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150 // 代入文用
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151
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152 class CAssign {
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153 public:
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154 CAssign(const yy::location& l, int op, CNode *value, CNode *expr)
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155 : l_(l), op_(op), value_(value), expr_(expr)
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156 {
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157 }
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158 ~CAssign()
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159 {
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160 delete value_;
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161 delete expr_;
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162 }
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163
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164 void analyze(compiler *c);
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165 void push_value(compiler *c)
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166 {
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167 value_->push(c);
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168 }
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169 void pop_value(compiler *c)
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170 {
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171 value_->pop(c);
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172 }
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173
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174 private:
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175 const yy::location l_;
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176 int op_;
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177 CNode *value_;
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178 CNode *expr_;
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179 } ;
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180
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181 #endif
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