1 | // |
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2 | // Copyright (C) 2004-2006, Maciej Sobczak |
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3 | // |
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4 | // Permission to copy, use, modify, sell and distribute this software |
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5 | // is granted provided this copyright notice appears in all copies. |
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6 | // This software is provided "as is" without express or implied |
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7 | // warranty, and with no claim as to its suitability for any purpose. |
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8 | // |
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9 | |
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10 | #ifndef CPPTCL_INCLUDED |
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11 | #define CPPTCL_INCLUDED |
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12 | |
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13 | #include <tcl.h> |
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14 | #include <string> |
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15 | #include <stdexcept> |
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16 | #include <sstream> |
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17 | #include <map> |
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18 | #include <vector> |
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19 | #include <boost/bind.hpp> |
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20 | |
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21 | |
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22 | namespace Tcl |
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23 | { |
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24 | |
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25 | // exception class used for reporting all Tcl errors |
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26 | |
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27 | class tcl_error : public std::runtime_error |
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28 | { |
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29 | public: |
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30 | explicit tcl_error(std::string const &msg) |
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31 | : std::runtime_error(msg) {} |
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32 | explicit tcl_error(Tcl_Interp *interp) |
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33 | : std::runtime_error(Tcl_GetString(Tcl_GetObjResult(interp))) {} |
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34 | }; |
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35 | |
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36 | // call policies |
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37 | |
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38 | struct policies |
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39 | { |
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40 | policies() : variadic_(false) {} |
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41 | |
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42 | policies & factory(std::string const &name); |
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43 | |
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44 | // note: this is additive |
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45 | policies & sink(int index); |
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46 | |
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47 | policies & variadic(); |
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48 | |
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49 | std::string factory_; |
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50 | std::vector<int> sinks_; |
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51 | bool variadic_; |
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52 | }; |
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53 | |
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54 | // syntax short-cuts |
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55 | policies factory(std::string const &name); |
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56 | policies sink(int index); |
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57 | policies variadic(); |
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58 | |
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59 | |
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60 | class interpreter; |
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61 | class object; |
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62 | |
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63 | namespace details |
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64 | { |
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65 | |
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66 | // wrapper for the evaluation result |
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67 | class result |
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68 | { |
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69 | public: |
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70 | result(Tcl_Interp *interp); |
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71 | |
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72 | operator bool() const; |
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73 | operator double() const; |
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74 | operator int() const; |
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75 | operator long() const; |
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76 | operator std::string() const; |
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77 | operator object() const; |
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78 | |
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79 | private: |
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80 | Tcl_Interp *interp_; |
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81 | }; |
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82 | |
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83 | // helper functions used to set the result value |
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84 | |
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85 | void set_result(Tcl_Interp *interp, bool b); |
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86 | void set_result(Tcl_Interp *interp, int i); |
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87 | void set_result(Tcl_Interp *interp, long i); |
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88 | void set_result(Tcl_Interp *interp, double d); |
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89 | void set_result(Tcl_Interp *interp, std::string const &s); |
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90 | void set_result(Tcl_Interp *interp, void *p); |
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91 | void set_result(Tcl_Interp *interp, object const &o); |
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92 | |
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93 | // helper functor for converting Tcl objects to the given type |
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94 | #include "details/conversions.h" |
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95 | |
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96 | // dispatchers able to capture (or ignore) the result |
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97 | #include "details/dispatchers.h" |
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98 | |
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99 | // helper for checking for required number of parameters |
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100 | // (throws tcl_error when not met) |
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101 | void check_params_no(int objc, int required); |
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102 | |
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103 | // helper for gathering optional params in variadic functions |
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104 | object get_var_params(Tcl_Interp *interp, |
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105 | int objc, Tcl_Obj * CONST objv[], |
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106 | int from, policies const &pol); |
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107 | |
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108 | // the callback_base is used to store callback handlers in a polynorphic map |
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109 | class callback_base |
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110 | { |
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111 | public: |
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112 | virtual ~callback_base() {} |
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113 | |
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114 | virtual void invoke(Tcl_Interp *interp, |
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115 | int objc, Tcl_Obj * CONST objv[], |
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116 | policies const &pol) = 0; |
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117 | }; |
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118 | |
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119 | |
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120 | // base class for object command handlers |
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121 | // and for class handlers |
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122 | class object_cmd_base |
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123 | { |
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124 | public: |
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125 | // destructor not needed, but exists to shut up the compiler warnings |
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126 | virtual ~object_cmd_base() {} |
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127 | |
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128 | virtual void invoke(void *p, Tcl_Interp *interp, |
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129 | int objc, Tcl_Obj * CONST objv[], |
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130 | policies const &pol) = 0; |
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131 | }; |
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132 | |
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133 | // base class for all class handlers, still abstract |
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134 | class class_handler_base : public object_cmd_base |
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135 | { |
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136 | public: |
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137 | typedef std::map<std::string, policies> policies_map_type; |
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138 | |
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139 | class_handler_base(); |
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140 | |
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141 | void register_method(std::string const &name, |
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142 | std::shared_ptr<object_cmd_base> ocb, policies const &p); |
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143 | |
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144 | policies & get_policies(std::string const &name); |
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145 | |
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146 | protected: |
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147 | typedef std::map< |
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148 | std::string, |
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149 | std::shared_ptr<object_cmd_base> |
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150 | > method_map_type; |
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151 | |
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152 | // a map of methods for the given class |
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153 | method_map_type methods_; |
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154 | |
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155 | policies_map_type policies_; |
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156 | }; |
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157 | |
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158 | // class handler - responsible for executing class methods |
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159 | template <class C> |
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160 | class class_handler : public class_handler_base |
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161 | { |
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162 | public: |
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163 | virtual void invoke(void *pv, Tcl_Interp *interp, |
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164 | int objc, Tcl_Obj * CONST objv[], policies const &pol) |
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165 | { |
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166 | C * p = static_cast<C*>(pv); |
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167 | |
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168 | if (objc < 2) |
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169 | { |
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170 | throw tcl_error("Too few arguments."); |
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171 | } |
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172 | |
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173 | std::string methodName(Tcl_GetString(objv[1])); |
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174 | |
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175 | if (methodName == "-delete") |
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176 | { |
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177 | Tcl_DeleteCommand(interp, Tcl_GetString(objv[0])); |
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178 | delete p; |
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179 | return; |
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180 | } |
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181 | |
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182 | // dispatch on the method name |
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183 | |
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184 | method_map_type::iterator it = methods_.find(methodName); |
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185 | if (it == methods_.end()) |
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186 | { |
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187 | throw tcl_error("Method " + methodName + " not found."); |
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188 | } |
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189 | |
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190 | it->second->invoke(pv, interp, objc, objv, pol); |
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191 | } |
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192 | }; |
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193 | |
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194 | |
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195 | // factory functions for creating class objects |
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196 | #include "details/constructors.h" |
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197 | |
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198 | // actual callback envelopes |
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199 | #include "details/callbacks.h" |
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200 | |
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201 | // actual method envelopes |
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202 | #include "details/methods.h" |
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203 | |
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204 | // helper meta function for figuring appropriate constructor callback |
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205 | #include "details/metahelpers.h" |
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206 | |
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207 | |
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208 | // this class is used to provide the "def" interface for defining |
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209 | // class member functions |
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210 | |
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211 | template <class C> |
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212 | class class_definer |
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213 | { |
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214 | public: |
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215 | class_definer(std::shared_ptr<class_handler<C> > ch) : ch_(ch) {} |
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216 | |
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217 | template <typename R> |
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218 | class_definer & def(std::string const &name, R (C::*f)(), |
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219 | policies const &p = policies()) |
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220 | { |
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221 | ch_->register_method(name, |
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222 | std::shared_ptr<details::object_cmd_base>( |
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223 | new details::method0<C, R>(f)), p); |
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224 | return *this; |
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225 | } |
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226 | |
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227 | template <typename R> |
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228 | class_definer & def(std::string const &name, R (C::*f)() const, |
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229 | policies const &p = policies()) |
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230 | { |
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231 | ch_->register_method(name, |
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232 | std::shared_ptr<details::object_cmd_base>( |
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233 | new details::method0<C, R>(f)), p); |
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234 | return *this; |
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235 | } |
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236 | |
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237 | template <typename R, typename T1> |
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238 | class_definer & def(std::string const &name, R (C::*f)(T1), |
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239 | policies const &p = policies()) |
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240 | { |
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241 | ch_->register_method(name, |
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242 | std::shared_ptr<details::object_cmd_base>( |
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243 | new details::method1<C, R, T1>(f)), p); |
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244 | return *this; |
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245 | } |
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246 | |
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247 | template <typename R, typename T1> |
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248 | class_definer & def(std::string const &name, R (C::*f)(T1) const, |
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249 | policies const &p = policies()) |
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250 | { |
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251 | ch_->register_method(name, |
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252 | std::shared_ptr<details::object_cmd_base>( |
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253 | new details::method1<C, R, T1>(f)), p); |
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254 | return *this; |
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255 | } |
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256 | |
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257 | template <typename R, typename T1, typename T2> |
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258 | class_definer & def(std::string const &name, R (C::*f)(T1, T2), |
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259 | policies const &p = policies()) |
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260 | { |
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261 | ch_->register_method(name, |
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262 | std::shared_ptr<details::object_cmd_base>( |
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263 | new details::method2<C, R, T1, T2>(f)), p); |
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264 | return *this; |
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265 | } |
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266 | |
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267 | template <typename R, typename T1, typename T2> |
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268 | class_definer & def(std::string const &name, R (C::*f)(T1, T2) const, |
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269 | policies const &p = policies()) |
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270 | { |
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271 | ch_->register_method(name, |
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272 | std::shared_ptr<details::object_cmd_base>( |
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273 | new details::method2<C, R, T1, T2>(f)), p); |
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274 | return *this; |
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275 | } |
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276 | |
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277 | template <typename R, typename T1, typename T2, typename T3> |
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278 | class_definer & def(std::string const &name, R (C::*f)(T1, T2, T3), |
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279 | policies const &p = policies()) |
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280 | { |
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281 | ch_->register_method(name, |
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282 | std::shared_ptr<details::object_cmd_base>( |
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283 | new details::method3<C, R, T1, T2, T3>(f)), p); |
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284 | return *this; |
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285 | } |
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286 | |
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287 | template <typename R, typename T1, typename T2, typename T3> |
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288 | class_definer & def(std::string const &name, R (C::*f)(T1, T2, T3) const, |
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289 | policies const &p = policies()) |
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290 | { |
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291 | ch_->register_method(name, |
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292 | std::shared_ptr<details::object_cmd_base>( |
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293 | new details::method3<C, R, T1, T2, T3>(f)), p); |
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294 | return *this; |
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295 | } |
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296 | |
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297 | template <typename R, typename T1, typename T2, typename T3, typename T4> |
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298 | class_definer & def(std::string const &name, R (C::*f)(T1, T2, T3, T4), |
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299 | policies const &p = policies()) |
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300 | { |
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301 | ch_->register_method(name, |
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302 | std::shared_ptr<details::object_cmd_base>( |
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303 | new details::method4<C, R, T1, T2, T3, T4>(f)), p); |
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304 | return *this; |
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305 | } |
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306 | |
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307 | template <typename R, typename T1, typename T2, typename T3, typename T4> |
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308 | class_definer & def(std::string const &name, |
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309 | R (C::*f)(T1, T2, T3, T4) const, |
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310 | policies const &p = policies()) |
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311 | { |
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312 | ch_->register_method(name, |
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313 | std::shared_ptr<details::object_cmd_base>( |
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314 | new details::method4<C, R, T1, T2, T3, T4>(f)), p); |
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315 | return *this; |
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316 | } |
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317 | |
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318 | template <typename R, typename T1, typename T2, typename T3, typename T4, |
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319 | typename T5> |
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320 | class_definer & def(std::string const &name, |
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321 | R (C::*f)(T1, T2, T3, T4, T5), policies const &p = policies()) |
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322 | { |
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323 | ch_->register_method(name, |
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324 | std::shared_ptr<details::object_cmd_base>( |
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325 | new details::method5<C, R, T1, T2, T3, T4, T5>(f)), p); |
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326 | return *this; |
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327 | } |
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328 | |
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329 | template <typename R, typename T1, typename T2, typename T3, typename T4, |
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330 | typename T5> |
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331 | class_definer & def(std::string const &name, |
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332 | R (C::*f)(T1, T2, T3, T4, T5) const, policies const &p = policies()) |
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333 | { |
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334 | ch_->register_method(name, |
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335 | std::shared_ptr<details::object_cmd_base>( |
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336 | new details::method5<C, R, T1, T2, T3, T4, T5>(f)), p); |
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337 | return *this; |
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338 | } |
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339 | |
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340 | template <typename R, typename T1, typename T2, typename T3, typename T4, |
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341 | typename T5, typename T6> |
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342 | class_definer & def(std::string const &name, |
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343 | R (C::*f)(T1, T2, T3, T4, T5, T6), policies const &p = policies()) |
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344 | { |
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345 | ch_->register_method(name, |
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346 | std::shared_ptr<details::object_cmd_base>( |
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347 | new details::method6<C, R, T1, T2, T3, T4, T5, T6>(f)), |
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348 | p); |
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349 | return *this; |
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350 | } |
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351 | |
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352 | template <typename R, typename T1, typename T2, typename T3, typename T4, |
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353 | typename T5, typename T6> |
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354 | class_definer & def(std::string const &name, |
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355 | R (C::*f)(T1, T2, T3, T4, T5, T6) const, |
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356 | policies const &p = policies()) |
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357 | { |
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358 | ch_->register_method(name, |
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359 | std::shared_ptr<details::object_cmd_base>( |
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360 | new details::method6<C, R, T1, T2, T3, T4, T5, T6>(f)), |
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361 | p); |
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362 | return *this; |
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363 | } |
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364 | |
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365 | template <typename R, typename T1, typename T2, typename T3, typename T4, |
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366 | typename T5, typename T6, typename T7> |
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367 | class_definer & def(std::string const &name, |
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368 | R (C::*f)(T1, T2, T3, T4, T5, T6, T7), |
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369 | policies const &p = policies()) |
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370 | { |
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371 | ch_->register_method(name, |
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372 | std::shared_ptr<details::object_cmd_base>( |
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373 | new details::method7<C, R, |
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374 | T1, T2, T3, T4, T5, T6, T7>(f)), p); |
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375 | return *this; |
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376 | } |
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377 | |
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378 | template <typename R, typename T1, typename T2, typename T3, typename T4, |
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379 | typename T5, typename T6, typename T7> |
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380 | class_definer & def(std::string const &name, |
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381 | R (C::*f)(T1, T2, T3, T4, T5, T6, T7) const, |
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382 | policies const &p = policies()) |
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383 | { |
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384 | ch_->register_method(name, |
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385 | std::shared_ptr<details::object_cmd_base>( |
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386 | new details::method7<C, R, |
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387 | T1, T2, T3, T4, T5, T6, T7>(f)), p); |
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388 | return *this; |
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389 | } |
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390 | |
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391 | template <typename R, typename T1, typename T2, typename T3, typename T4, |
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392 | typename T5, typename T6, typename T7, typename T8> |
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393 | class_definer & def(std::string const &name, |
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394 | R (C::*f)(T1, T2, T3, T4, T5, T6, T7, T8), |
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395 | policies const &p = policies()) |
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396 | { |
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397 | ch_->register_method(name, |
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398 | std::shared_ptr<details::object_cmd_base>( |
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399 | new details::method8<C, R, |
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400 | T1, T2, T3, T4, T5, T6, T7, T8>(f)), p); |
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401 | return *this; |
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402 | } |
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403 | |
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404 | template <typename R, typename T1, typename T2, typename T3, typename T4, |
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405 | typename T5, typename T6, typename T7, typename T8> |
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406 | class_definer & def(std::string const &name, |
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407 | R (C::*f)(T1, T2, T3, T4, T5, T6, T7, T8) const, |
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408 | policies const &p = policies()) |
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409 | { |
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410 | ch_->register_method(name, |
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411 | std::shared_ptr<details::object_cmd_base>( |
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412 | new details::method8<C, R, |
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413 | T1, T2, T3, T4, T5, T6, T7, T8>(f)), p); |
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414 | return *this; |
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415 | } |
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416 | |
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417 | template <typename R, typename T1, typename T2, typename T3, typename T4, |
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418 | typename T5, typename T6, typename T7, typename T8, typename T9> |
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419 | class_definer & def(std::string const &name, |
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420 | R (C::*f)(T1, T2, T3, T4, T5, T6, T7, T8, T9), |
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421 | policies const &p = policies()) |
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422 | { |
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423 | ch_->register_method(name, |
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424 | std::shared_ptr<details::object_cmd_base>( |
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425 | new details::method9<C, R, |
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426 | T1, T2, T3, T4, T5, T6, T7, T8, T9>(f)), p); |
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427 | return *this; |
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428 | } |
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429 | |
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430 | template <typename R, typename T1, typename T2, typename T3, typename T4, |
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431 | typename T5, typename T6, typename T7, typename T8, typename T9> |
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432 | class_definer & def(std::string const &name, |
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433 | R (C::*f)(T1, T2, T3, T4, T5, T6, T7, T8, T9) const, |
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434 | policies const &p = policies()) |
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435 | { |
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436 | ch_->register_method(name, |
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437 | std::shared_ptr<details::object_cmd_base>( |
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438 | new details::method9<C, R, |
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439 | T1, T2, T3, T4, T5, T6, T7, T8, T9>(f)), p); |
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440 | return *this; |
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441 | } |
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442 | |
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443 | private: |
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444 | std::shared_ptr<class_handler<C> > ch_; |
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445 | }; |
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446 | |
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447 | } // namespace details |
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448 | |
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449 | |
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450 | // init type for defining class constructors |
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451 | template <typename T1 = void, typename T2 = void, typename T3 = void, |
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452 | typename T4 = void, typename T5 = void, typename T6 = void, |
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453 | typename T7 = void, typename T8 = void, typename T9 = void> |
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454 | class init {}; |
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455 | |
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456 | // no_init type and object - to define classes without constructors |
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457 | namespace details |
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458 | { |
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459 | struct no_init_type {}; |
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460 | } // namespace details |
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461 | extern details::no_init_type no_init; |
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462 | |
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463 | |
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464 | // interpreter wrapper |
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465 | class interpreter |
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466 | { |
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467 | public: |
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468 | interpreter(); |
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469 | interpreter(Tcl_Interp *, bool owner = true); |
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470 | ~interpreter(); |
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471 | |
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472 | void make_safe(); |
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473 | |
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474 | Tcl_Interp * get() const { return interp_; } |
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475 | |
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476 | // free function definitions |
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477 | |
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478 | template <typename R> |
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479 | void def(std::string const &name, R (*f)(), |
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480 | policies const &p = policies()) |
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481 | { |
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482 | add_function(name, |
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483 | std::shared_ptr<details::callback_base>( |
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484 | new details::callback0<R>(f)), p); |
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485 | } |
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486 | |
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487 | template <typename R, typename T1> |
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488 | void def(std::string const &name, R (*f)(T1), |
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489 | policies const &p = policies()) |
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490 | { |
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491 | add_function(name, |
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492 | std::shared_ptr<details::callback_base>( |
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493 | new details::callback1<R, T1>(f)), p); |
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494 | } |
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495 | |
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496 | template <typename R, typename T1, typename T2> |
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497 | void def(std::string const &name, R (*f)(T1, T2), |
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498 | policies const &p = policies()) |
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499 | { |
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500 | add_function(name, |
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501 | std::shared_ptr<details::callback_base>( |
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502 | new details::callback2<R, T1, T2>(f)), p); |
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503 | } |
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504 | |
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505 | template <typename R, typename T1, typename T2, typename T3> |
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506 | void def(std::string const &name, R (*f)(T1, T2, T3), |
---|
507 | policies const &p = policies()) |
---|
508 | { |
---|
509 | add_function(name, |
---|
510 | std::shared_ptr<details::callback_base>( |
---|
511 | new details::callback3<R, T1, T2, T3>(f)), p); |
---|
512 | } |
---|
513 | |
---|
514 | template <typename R, typename T1, typename T2, typename T3, typename T4> |
---|
515 | void def(std::string const &name, R (*f)(T1, T2, T3, T4), |
---|
516 | policies const &p = policies()) |
---|
517 | { |
---|
518 | add_function(name, |
---|
519 | std::shared_ptr<details::callback_base>( |
---|
520 | new details::callback4<R, T1, T2, T3, T4>(f)), p); |
---|
521 | } |
---|
522 | |
---|
523 | template <typename R, typename T1, typename T2, typename T3, |
---|
524 | typename T4, typename T5> |
---|
525 | void def(std::string const &name, R (*f)(T1, T2, T3, T4, T5), |
---|
526 | policies const &p = policies()) |
---|
527 | { |
---|
528 | add_function(name, |
---|
529 | std::shared_ptr<details::callback_base>( |
---|
530 | new details::callback5<R, T1, T2, T3, T4, T5>(f)), p); |
---|
531 | } |
---|
532 | |
---|
533 | template <typename R, typename T1, typename T2, typename T3, |
---|
534 | typename T4, typename T5, typename T6> |
---|
535 | void def(std::string const &name, R (*f)(T1, T2, T3, T4, T5, T6), |
---|
536 | policies const &p = policies()) |
---|
537 | { |
---|
538 | add_function(name, |
---|
539 | std::shared_ptr<details::callback_base>( |
---|
540 | new details::callback6<R, T1, T2, T3, T4, T5, T6>(f)), p); |
---|
541 | } |
---|
542 | |
---|
543 | template <typename R, typename T1, typename T2, typename T3, |
---|
544 | typename T4, typename T5, typename T6, typename T7> |
---|
545 | void def(std::string const &name, R (*f)(T1, T2, T3, T4, T5, T6, T7), |
---|
546 | policies const &p = policies()) |
---|
547 | { |
---|
548 | add_function(name, |
---|
549 | std::shared_ptr<details::callback_base>( |
---|
550 | new details::callback7<R, |
---|
551 | T1, T2, T3, T4, T5, T6, T7>(f)), p); |
---|
552 | } |
---|
553 | |
---|
554 | template <typename R, typename T1, typename T2, typename T3, |
---|
555 | typename T4, typename T5, typename T6, typename T7, typename T8> |
---|
556 | void def(std::string const &name, R (*f)(T1, T2, T3, T4, T5, T6, T7, T8), |
---|
557 | policies const &p = policies()) |
---|
558 | { |
---|
559 | add_function(name, |
---|
560 | std::shared_ptr<details::callback_base>( |
---|
561 | new details::callback8<R, |
---|
562 | T1, T2, T3, T4, T5, T6, T7, T8>(f)), p); |
---|
563 | } |
---|
564 | |
---|
565 | template <typename R, typename T1, typename T2, typename T3, |
---|
566 | typename T4, typename T5, typename T6, typename T7, typename T8, |
---|
567 | typename T9> |
---|
568 | void def(std::string const &name, |
---|
569 | R (*f)(T1, T2, T3, T4, T5, T6, T7, T8, T9), |
---|
570 | policies const &p = policies()) |
---|
571 | { |
---|
572 | add_function(name, |
---|
573 | std::shared_ptr<details::callback_base>( |
---|
574 | new details::callback9<R, |
---|
575 | T1, T2, T3, T4, T5, T6, T7, T8, T9>(f)), p); |
---|
576 | } |
---|
577 | |
---|
578 | |
---|
579 | // class definitions |
---|
580 | |
---|
581 | template <class C> |
---|
582 | details::class_definer<C> class_(std::string const &name) |
---|
583 | { |
---|
584 | std::shared_ptr<details::class_handler<C> > ch( |
---|
585 | new details::class_handler<C>()); |
---|
586 | |
---|
587 | add_class(name, ch); |
---|
588 | |
---|
589 | add_constructor(name, ch, |
---|
590 | std::shared_ptr<details::callback_base>( |
---|
591 | new details::callback0<C*>(&details::construct< |
---|
592 | C, void, void, void, void, void, void, void, |
---|
593 | void, void>::doit))); |
---|
594 | |
---|
595 | return details::class_definer<C>(ch); |
---|
596 | } |
---|
597 | |
---|
598 | template <class C, typename T1, typename T2, typename T3, typename T4, |
---|
599 | typename T5, typename T6, typename T7, typename T8, |
---|
600 | typename T9> |
---|
601 | details::class_definer<C> class_(std::string const &name, |
---|
602 | init<T1, T2, T3, T4, T5, T6, T7, T8, T9> const &, |
---|
603 | policies const &p = policies()) |
---|
604 | { |
---|
605 | typedef typename details::get_callback_type_for_construct< |
---|
606 | C, T1, T2, T3, T4, T5, T6, T7, T8, T9>::type |
---|
607 | callback_type; |
---|
608 | |
---|
609 | std::shared_ptr<details::class_handler<C> > ch( |
---|
610 | new details::class_handler<C>()); |
---|
611 | |
---|
612 | add_class(name, ch); |
---|
613 | |
---|
614 | add_constructor(name, ch, |
---|
615 | std::shared_ptr<details::callback_base>( |
---|
616 | new callback_type(&details::construct< |
---|
617 | C, T1, T2, T3, T4, T5, T6, T7, T8, T9>::doit)), p); |
---|
618 | |
---|
619 | return details::class_definer<C>(ch); |
---|
620 | } |
---|
621 | |
---|
622 | template <class C> |
---|
623 | details::class_definer<C> class_( |
---|
624 | std::string const &name, details::no_init_type const &) |
---|
625 | { |
---|
626 | std::shared_ptr<details::class_handler<C> > ch( |
---|
627 | new details::class_handler<C>()); |
---|
628 | |
---|
629 | add_class(name, ch); |
---|
630 | |
---|
631 | return details::class_definer<C>(ch); |
---|
632 | } |
---|
633 | |
---|
634 | // free script evaluation |
---|
635 | details::result eval(std::string const &script); |
---|
636 | details::result eval(std::istream &s); |
---|
637 | |
---|
638 | details::result eval(object const &o); |
---|
639 | |
---|
640 | // the InputIterator should give object& or Tcl_Obj* when dereferenced |
---|
641 | template <class InputIterator> |
---|
642 | details::result eval(InputIterator first, InputIterator last); |
---|
643 | |
---|
644 | // create alias from the *this interpreter to the target interpreter |
---|
645 | void create_alias(std::string const &cmd, |
---|
646 | interpreter &targetInterp, std::string const &targetCmd); |
---|
647 | |
---|
648 | // register a package info (useful when defining packages) |
---|
649 | void pkg_provide(std::string const &name, std::string const &version); |
---|
650 | |
---|
651 | // helper for cleaning up callbacks in non-managed interpreters |
---|
652 | static void clear_definitions(Tcl_Interp *); |
---|
653 | |
---|
654 | private: |
---|
655 | |
---|
656 | // copy not supported |
---|
657 | interpreter(const interpreter &); |
---|
658 | void operator=(const interpreter &); |
---|
659 | |
---|
660 | void add_function(std::string const &name, |
---|
661 | std::shared_ptr<details::callback_base> cb, |
---|
662 | policies const &p = policies()); |
---|
663 | |
---|
664 | void add_class(std::string const &name, |
---|
665 | std::shared_ptr<details::class_handler_base> chb); |
---|
666 | |
---|
667 | void add_constructor(std::string const &name, |
---|
668 | std::shared_ptr<details::class_handler_base> chb, |
---|
669 | std::shared_ptr<details::callback_base> cb, |
---|
670 | policies const &p = policies()); |
---|
671 | |
---|
672 | Tcl_Interp *interp_; |
---|
673 | bool owner_; |
---|
674 | }; |
---|
675 | |
---|
676 | |
---|
677 | // object wrapper |
---|
678 | class object |
---|
679 | { |
---|
680 | public: |
---|
681 | |
---|
682 | // constructors |
---|
683 | |
---|
684 | object(); |
---|
685 | |
---|
686 | explicit object(bool b); |
---|
687 | object(char const *buf, size_t size); // byte array |
---|
688 | explicit object(double b); |
---|
689 | explicit object(int i); |
---|
690 | |
---|
691 | // list creation |
---|
692 | // the InputIterator should give object& or Tcl_Obj* when dereferenced |
---|
693 | template <class InputIterator> |
---|
694 | object(InputIterator first, InputIterator last) |
---|
695 | : interp_(0) |
---|
696 | { |
---|
697 | std::vector<Tcl_Obj*> v; |
---|
698 | fill_vector(v, first, last); |
---|
699 | obj_ = Tcl_NewListObj(static_cast<int>(v.size()), |
---|
700 | v.empty() ? NULL : &v[0]); |
---|
701 | Tcl_IncrRefCount(obj_); |
---|
702 | } |
---|
703 | |
---|
704 | explicit object(long i); |
---|
705 | explicit object(char const *s); // string construction |
---|
706 | explicit object(std::string const &s); // string construction |
---|
707 | |
---|
708 | explicit object(Tcl_Obj *o, bool shared = false); |
---|
709 | |
---|
710 | object(object const &other, bool shared = false); |
---|
711 | ~object(); |
---|
712 | |
---|
713 | // assignment |
---|
714 | |
---|
715 | object & assign(bool b); |
---|
716 | object & resize(size_t size); // byte array resize |
---|
717 | object & assign(char const *buf, size_t size); // byte array assignment |
---|
718 | object & assign(double d); |
---|
719 | object & assign(int i); |
---|
720 | |
---|
721 | // list assignment |
---|
722 | // the InputIterator should give Tcl_Obj* or object& when dereferenced |
---|
723 | template <class InputIterator> |
---|
724 | object & assign(InputIterator first, InputIterator last) |
---|
725 | { |
---|
726 | std::vector<Tcl_Obj*> v; |
---|
727 | fill_vector(v, first, last); |
---|
728 | Tcl_SetListObj(obj_, static_cast<int>(v.size()), |
---|
729 | v.empty() ? NULL : &v[0]); |
---|
730 | return *this; |
---|
731 | } |
---|
732 | |
---|
733 | object & assign(long l); |
---|
734 | object & assign(char const *s); // string assignment |
---|
735 | object & assign(std::string const &s); // string assignment |
---|
736 | object & assign(object const &o); |
---|
737 | object & assign(Tcl_Obj *o); |
---|
738 | |
---|
739 | object & operator=(bool b) { return assign(b); } |
---|
740 | object & operator=(double d) { return assign(d); } |
---|
741 | object & operator=(int i) { return assign(i); } |
---|
742 | object & operator=(long l) { return assign(l); } |
---|
743 | object & operator=(char const *s) { return assign(s); } |
---|
744 | object & operator=(std::string const &s) { return assign(s); } |
---|
745 | |
---|
746 | object & operator=(object const &o) { return assign(o); } |
---|
747 | object & swap(object &other); |
---|
748 | |
---|
749 | // (logically) non-modifying members |
---|
750 | |
---|
751 | template <typename T> |
---|
752 | T get(interpreter &i) const; |
---|
753 | |
---|
754 | char const * get() const; // string get |
---|
755 | char const * get(size_t &size) const; // byte array get |
---|
756 | |
---|
757 | size_t length(interpreter &i) const; // returns list length |
---|
758 | object at(interpreter &i, size_t index) const; |
---|
759 | |
---|
760 | Tcl_Obj * get_object() const { return obj_; } |
---|
761 | |
---|
762 | // modifying members |
---|
763 | |
---|
764 | object & append(interpreter &i, object const &o); |
---|
765 | object & append_list(interpreter &i, object const &o); |
---|
766 | |
---|
767 | // list replace |
---|
768 | // the InputIterator should give Tcl_Obj* or object& when dereferenced |
---|
769 | template <class InputIterator> |
---|
770 | object & replace(interpreter &i, size_t index, size_t count, |
---|
771 | InputIterator first, InputIterator last) |
---|
772 | { |
---|
773 | std::vector<Tcl_Obj*> v; |
---|
774 | fill_vector(v, first, last); |
---|
775 | int res = Tcl_ListObjReplace(i.get(), obj_, |
---|
776 | static_cast<int>(index), static_cast<int>(count), |
---|
777 | static_cast<int>(v.size()), v.empty() ? NULL : &v[0]); |
---|
778 | if (res != TCL_OK) |
---|
779 | { |
---|
780 | throw tcl_error(i.get()); |
---|
781 | } |
---|
782 | |
---|
783 | return *this; |
---|
784 | } |
---|
785 | |
---|
786 | object & replace(interpreter &i, size_t index, size_t count, |
---|
787 | object const &o); |
---|
788 | object & replace_list(interpreter &i, size_t index, size_t count, |
---|
789 | object const &o); |
---|
790 | |
---|
791 | // helper functions for piggy-backing interpreter info |
---|
792 | void set_interp(Tcl_Interp *interp); |
---|
793 | Tcl_Interp * get_interp() const; |
---|
794 | |
---|
795 | // helper function, also used from interpreter::eval |
---|
796 | template <class InputIterator> |
---|
797 | static void fill_vector(std::vector<Tcl_Obj*> &v, |
---|
798 | InputIterator first, InputIterator last) |
---|
799 | { |
---|
800 | for (; first != last; ++first) |
---|
801 | { |
---|
802 | object o(*first, true); |
---|
803 | v.push_back(o.obj_); |
---|
804 | } |
---|
805 | } |
---|
806 | |
---|
807 | private: |
---|
808 | |
---|
809 | // helper function used from copy constructors |
---|
810 | void init(Tcl_Obj *o, bool shared); |
---|
811 | |
---|
812 | Tcl_Obj *obj_; |
---|
813 | Tcl_Interp *interp_; |
---|
814 | }; |
---|
815 | |
---|
816 | // available specializations for object::get |
---|
817 | template <> bool object::get<bool>(interpreter &i) const; |
---|
818 | template <> double object::get<double>(interpreter &i) const; |
---|
819 | template <> int object::get<int>(interpreter &i) const; |
---|
820 | template <> long object::get<long>(interpreter &i) const; |
---|
821 | template <> char const * object::get<char const *>(interpreter &i) const; |
---|
822 | template <> std::string object::get<std::string>(interpreter &i) const; |
---|
823 | template <> |
---|
824 | std::vector<char> object::get<std::vector<char> >(interpreter &i) const; |
---|
825 | |
---|
826 | // the InputIterator should give object& or Tcl_Obj* when dereferenced |
---|
827 | template <class InputIterator> |
---|
828 | details::result interpreter::eval(InputIterator first, InputIterator last) |
---|
829 | { |
---|
830 | std::vector<Tcl_Obj*> v; |
---|
831 | object::fill_vector(v, first, last); |
---|
832 | int cc = Tcl_EvalObjv(interp_, |
---|
833 | static_cast<int>(v.size()), v.empty() ? NULL : &v[0], 0); |
---|
834 | if (cc != TCL_OK) |
---|
835 | { |
---|
836 | throw tcl_error(interp_); |
---|
837 | } |
---|
838 | |
---|
839 | return details::result(interp_); |
---|
840 | } |
---|
841 | |
---|
842 | namespace details |
---|
843 | { |
---|
844 | |
---|
845 | // additional callback envelopes for variadic functions |
---|
846 | #include "details/callbacks_v.h" |
---|
847 | |
---|
848 | // additional method envelopes for variadic methods |
---|
849 | #include "details/methods_v.h" |
---|
850 | |
---|
851 | } // namespace details |
---|
852 | |
---|
853 | } // namespace Tcl |
---|
854 | |
---|
855 | |
---|
856 | // macro for defining loadable module entry point |
---|
857 | // - used for extending Tcl interpreter |
---|
858 | |
---|
859 | #define CPPTCL_MODULE(name, i) void name##_cpptcl_Init(Tcl::interpreter &i); \ |
---|
860 | extern "C" int name##_Init(Tcl_Interp *interp) \ |
---|
861 | { \ |
---|
862 | Tcl::interpreter i(interp, false); \ |
---|
863 | name##_cpptcl_Init(i); \ |
---|
864 | return TCL_OK; \ |
---|
865 | } \ |
---|
866 | void name##_cpptcl_Init(Tcl::interpreter &i) |
---|
867 | |
---|
868 | |
---|
869 | #endif // CPPTCL_INCLUDED |
---|