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1 ------------------------------------------------------------------------------
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2 -- --
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3 -- GNAT COMPILER COMPONENTS --
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4 -- --
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5 -- C S T A N D --
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6 -- --
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7 -- B o d y --
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8 -- --
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145
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9 -- Copyright (C) 1992-2019, Free Software Foundation, Inc. --
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111
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10 -- --
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11 -- GNAT is free software; you can redistribute it and/or modify it under --
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12 -- terms of the GNU General Public License as published by the Free Soft- --
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13 -- ware Foundation; either version 3, or (at your option) any later ver- --
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14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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17 -- for more details. You should have received a copy of the GNU General --
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18 -- Public License distributed with GNAT; see file COPYING3. If not, go to --
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19 -- http://www.gnu.org/licenses for a complete copy of the license. --
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20 -- --
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21 -- GNAT was originally developed by the GNAT team at New York University. --
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22 -- Extensive contributions were provided by Ada Core Technologies Inc. --
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23 -- --
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24 ------------------------------------------------------------------------------
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25
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26 with Atree; use Atree;
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27 with Csets; use Csets;
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28 with Debug; use Debug;
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29 with Einfo; use Einfo;
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30 with Elists; use Elists;
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31 with Layout; use Layout;
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32 with Namet; use Namet;
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33 with Nlists; use Nlists;
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34 with Nmake; use Nmake;
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35 with Opt; use Opt;
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36 with Output; use Output;
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37 with Set_Targ; use Set_Targ;
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38 with Targparm; use Targparm;
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39 with Tbuild; use Tbuild;
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40 with Ttypes; use Ttypes;
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41 with Sem_Mech; use Sem_Mech;
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42 with Sem_Util; use Sem_Util;
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43 with Sinfo; use Sinfo;
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44 with Snames; use Snames;
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45 with Stand; use Stand;
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46 with Uintp; use Uintp;
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47 with Urealp; use Urealp;
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48
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49 package body CStand is
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50
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51 Stloc : constant Source_Ptr := Standard_Location;
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52 Staloc : constant Source_Ptr := Standard_ASCII_Location;
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53 -- Standard abbreviations used throughout this package
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54
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55 Back_End_Float_Types : Elist_Id := No_Elist;
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56 -- List used for any floating point supported by the back end. This needs
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57 -- to be at the library level, because the call back procedures retrieving
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58 -- this information are at that level.
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59
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60 -----------------------
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61 -- Local Subprograms --
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62 -----------------------
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63
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64 procedure Build_Float_Type
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65 (E : Entity_Id;
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66 Digs : Int;
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67 Rep : Float_Rep_Kind;
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68 Siz : Int;
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69 Align : Int);
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70 -- Procedure to build standard predefined float base type. The first
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71 -- parameter is the entity for the type. The second parameter is the
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72 -- digits value. The third parameter indicates the representation to
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73 -- be used for the type. The fourth parameter is the size in bits.
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74 -- The fifth parameter is the alignment in storage units. Each type
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75 -- is added to the list of predefined floating point types.
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76 --
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77 -- Note that both RM_Size and Esize are set to the specified size, i.e.
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78 -- we do not set the RM_Size to the precision passed by the back end.
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79 -- This is consistent with the semantics of 'Size specified in the RM
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80 -- because we cannot pack components of the type tighter than this size.
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81
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82 procedure Build_Signed_Integer_Type (E : Entity_Id; Siz : Nat);
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83 -- Procedure to build standard predefined signed integer subtype. The
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84 -- first parameter is the entity for the subtype. The second parameter
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85 -- is the size in bits. The corresponding base type is not built by
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86 -- this routine but instead must be built by the caller where needed.
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87
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88 procedure Build_Unsigned_Integer_Type
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89 (Uns : Entity_Id;
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90 Siz : Nat;
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91 Nam : String);
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92 -- Procedure to build standard predefined unsigned integer subtype. These
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93 -- subtypes are not user visible, but they are used internally. The first
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94 -- parameter is the entity for the subtype. The second parameter is the
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95 -- size in bits. The third parameter is an identifying name.
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96
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97 procedure Copy_Float_Type (To : Entity_Id; From : Entity_Id);
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98 -- Build a floating point type, copying representation details from From.
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99 -- This is used to create predefined floating point types based on
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100 -- available types in the back end.
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101
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102 procedure Create_Operators;
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103 -- Make entries for each of the predefined operators in Standard
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104
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105 procedure Create_Unconstrained_Base_Type
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106 (E : Entity_Id;
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107 K : Entity_Kind);
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108 -- The predefined signed integer types are constrained subtypes which
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109 -- must have a corresponding unconstrained base type. This type is almost
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110 -- useless. The only place it has semantics is Subtypes_Statically_Match.
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111 -- Consequently, we arrange for it to be identical apart from the setting
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112 -- of the constrained bit. This routine takes an entity E for the Type,
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113 -- copies it to estabish the base type, then resets the Ekind of the
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114 -- original entity to K (the Ekind for the subtype). The Etype field of
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115 -- E is set by the call (to point to the created base type entity), and
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116 -- also the Is_Constrained flag of E is set.
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117 --
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118 -- To understand the exact requirement for this, see RM 3.5.4(11) which
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119 -- makes it clear that Integer, for example, is constrained, with the
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120 -- constraint bounds matching the bounds of the (unconstrained) base
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121 -- type. The point is that Integer and Integer'Base have identical
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122 -- bounds, but do not statically match, since a subtype with constraints
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123 -- never matches a subtype with no constraints.
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124
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125 function Find_Back_End_Float_Type (Name : String) return Entity_Id;
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126 -- Return the first float type in Back_End_Float_Types with the given name.
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127 -- Names of entities in back end types, are either type names of C
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128 -- predefined types (all lower case), or mode names (upper case).
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129 -- These are not generally valid identifier names.
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130
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131 function Identifier_For (S : Standard_Entity_Type) return Node_Id;
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132 -- Returns an identifier node with the same name as the defining
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133 -- identifier corresponding to the given Standard_Entity_Type value
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134
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135 procedure Make_Component
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136 (Rec : Entity_Id;
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137 Typ : Entity_Id;
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138 Nam : String);
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139 -- Build a record component with the given type and name, and append to
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140 -- the list of components of Rec.
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141
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142 function Make_Formal
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143 (Typ : Entity_Id;
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144 Formal_Name : String) return Entity_Id;
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145 -- Construct entity for subprogram formal with given name and type
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146
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147 function Make_Integer (V : Uint) return Node_Id;
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148 -- Builds integer literal with given value
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149
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150 procedure Make_Name (Id : Entity_Id; Nam : String);
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151 -- Make an entry in the names table for Nam, and set as Chars field of Id
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152
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153 function New_Operator (Op : Name_Id; Typ : Entity_Id) return Entity_Id;
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154 -- Build entity for standard operator with given name and type
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155
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156 function New_Standard_Entity
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157 (New_Node_Kind : Node_Kind := N_Defining_Identifier) return Entity_Id;
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158 -- Builds a new entity for Standard
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159
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160 function New_Standard_Entity (S : String) return Entity_Id;
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161 -- Builds a new entity for Standard with Nkind = N_Defining_Identifier,
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162 -- and Chars of this defining identifier set to the given string S.
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163
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164 procedure Print_Standard;
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165 -- Print representation of package Standard if switch set
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166
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167 procedure Register_Float_Type
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168 (Name : String;
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169 Digs : Positive;
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170 Float_Rep : Float_Rep_Kind;
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171 Precision : Positive;
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172 Size : Positive;
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173 Alignment : Natural);
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174 -- Registers a single back end floating-point type (from FPT_Mode_Table in
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175 -- Set_Targ). This will create a predefined floating-point base type for
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176 -- one of the floating point types reported by the back end, and add it
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177 -- to the list of predefined float types. Name is the name of the type
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178 -- as a normal format (non-null-terminated) string. Digs is the number of
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179 -- digits, which is always non-zero, since non-floating-point types were
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180 -- filtered out earlier. Float_Rep indicates the kind of floating-point
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181 -- type, and Precision, Size and Alignment are the precision, size and
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182 -- alignment in bits.
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183
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184 procedure Set_Integer_Bounds
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185 (Id : Entity_Id;
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186 Typ : Entity_Id;
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187 Lb : Uint;
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188 Hb : Uint);
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189 -- Procedure to set bounds for integer type or subtype. Id is the entity
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190 -- whose bounds and type are to be set. The Typ parameter is the Etype
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191 -- value for the entity (which will be the same as Id for all predefined
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192 -- integer base types. The third and fourth parameters are the bounds.
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193
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194 ----------------------
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195 -- Build_Float_Type --
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196 ----------------------
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197
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198 procedure Build_Float_Type
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199 (E : Entity_Id;
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200 Digs : Int;
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201 Rep : Float_Rep_Kind;
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202 Siz : Int;
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203 Align : Int)
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204 is
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205 begin
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206 Set_Type_Definition (Parent (E),
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207 Make_Floating_Point_Definition (Stloc,
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208 Digits_Expression => Make_Integer (UI_From_Int (Digs))));
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209
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210 Set_Ekind (E, E_Floating_Point_Type);
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211 Set_Etype (E, E);
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212 Init_Digits_Value (E, Digs);
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213 Set_Float_Rep (E, Rep);
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214 Init_Size (E, Siz);
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215 Set_Elem_Alignment (E, Align);
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216 Set_Float_Bounds (E);
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217 Set_Is_Frozen (E);
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218 Set_Is_Public (E);
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219 Set_Size_Known_At_Compile_Time (E);
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220 end Build_Float_Type;
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221
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222 ------------------------------
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223 -- Find_Back_End_Float_Type --
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224 ------------------------------
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225
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226 function Find_Back_End_Float_Type (Name : String) return Entity_Id is
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227 N : Elmt_Id;
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228
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229 begin
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230 N := First_Elmt (Back_End_Float_Types);
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231 while Present (N) and then Get_Name_String (Chars (Node (N))) /= Name
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232 loop
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233 Next_Elmt (N);
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234 end loop;
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235
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236 return Node (N);
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237 end Find_Back_End_Float_Type;
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238
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239 -------------------------------
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240 -- Build_Signed_Integer_Type --
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241 -------------------------------
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242
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243 procedure Build_Signed_Integer_Type (E : Entity_Id; Siz : Nat) is
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244 U2Siz1 : constant Uint := 2 ** (Siz - 1);
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245 Lbound : constant Uint := -U2Siz1;
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246 Ubound : constant Uint := U2Siz1 - 1;
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247
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248 begin
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249 Set_Type_Definition (Parent (E),
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250 Make_Signed_Integer_Type_Definition (Stloc,
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251 Low_Bound => Make_Integer (Lbound),
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252 High_Bound => Make_Integer (Ubound)));
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253
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254 Set_Ekind (E, E_Signed_Integer_Type);
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255 Set_Etype (E, E);
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256 Init_Size (E, Siz);
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257 Set_Elem_Alignment (E);
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258 Set_Integer_Bounds (E, E, Lbound, Ubound);
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259 Set_Is_Frozen (E);
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260 Set_Is_Public (E);
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261 Set_Is_Known_Valid (E);
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262 Set_Size_Known_At_Compile_Time (E);
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263 end Build_Signed_Integer_Type;
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264
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265 ---------------------------------
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266 -- Build_Unsigned_Integer_Type --
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267 ---------------------------------
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268
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269 procedure Build_Unsigned_Integer_Type
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270 (Uns : Entity_Id;
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271 Siz : Nat;
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272 Nam : String)
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273 is
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274 Decl : Node_Id;
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275 R_Node : Node_Id;
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276
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277 begin
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278 Decl := New_Node (N_Full_Type_Declaration, Stloc);
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279 Set_Defining_Identifier (Decl, Uns);
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280 Make_Name (Uns, Nam);
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281
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282 Set_Ekind (Uns, E_Modular_Integer_Type);
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283 Set_Scope (Uns, Standard_Standard);
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284 Set_Etype (Uns, Uns);
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285 Init_Size (Uns, Siz);
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286 Set_Elem_Alignment (Uns);
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287 Set_Modulus (Uns, Uint_2 ** Siz);
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288 Set_Is_Unsigned_Type (Uns);
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289 Set_Size_Known_At_Compile_Time (Uns);
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290 Set_Is_Known_Valid (Uns, True);
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291
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292 R_Node := New_Node (N_Range, Stloc);
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293 Set_Low_Bound (R_Node, Make_Integer (Uint_0));
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294 Set_High_Bound (R_Node, Make_Integer (Modulus (Uns) - 1));
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295 Set_Etype (Low_Bound (R_Node), Uns);
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296 Set_Etype (High_Bound (R_Node), Uns);
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297 Set_Scalar_Range (Uns, R_Node);
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298 end Build_Unsigned_Integer_Type;
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299
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300 ---------------------
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301 -- Copy_Float_Type --
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302 ---------------------
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303
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304 procedure Copy_Float_Type (To : Entity_Id; From : Entity_Id) is
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305 begin
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306 Build_Float_Type
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307 (To, UI_To_Int (Digits_Value (From)), Float_Rep (From),
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308 UI_To_Int (Esize (From)), UI_To_Int (Alignment (From)));
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309 end Copy_Float_Type;
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310
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311 ----------------------
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312 -- Create_Operators --
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313 ----------------------
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314
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315 -- Each operator has an abbreviated signature. The formals have the names
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316 -- LEFT and RIGHT. Their types are not actually used for resolution.
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317
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318 procedure Create_Operators is
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319 Op_Node : Entity_Id;
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320
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321 -- The following tables define the binary and unary operators and their
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322 -- corresponding result type.
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323
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324 Binary_Ops : constant array (S_Binary_Ops) of Name_Id :=
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325
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326 -- There is one entry here for each binary operator, except for the
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327 -- case of concatenation, where there are three entries, one for a
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328 -- String result, one for Wide_String, and one for Wide_Wide_String.
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329
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330 (Name_Op_Add,
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331 Name_Op_And,
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332 Name_Op_Concat,
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333 Name_Op_Concat,
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334 Name_Op_Concat,
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335 Name_Op_Divide,
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336 Name_Op_Eq,
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337 Name_Op_Expon,
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338 Name_Op_Ge,
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339 Name_Op_Gt,
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340 Name_Op_Le,
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341 Name_Op_Lt,
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342 Name_Op_Mod,
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343 Name_Op_Multiply,
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344 Name_Op_Ne,
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345 Name_Op_Or,
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346 Name_Op_Rem,
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347 Name_Op_Subtract,
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348 Name_Op_Xor);
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349
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350 Bin_Op_Types : constant array (S_Binary_Ops) of Entity_Id :=
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351
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352 -- This table has the corresponding result types. The entries are
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353 -- ordered so they correspond to the Binary_Ops array above.
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354
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355 (Universal_Integer, -- Add
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356 Standard_Boolean, -- And
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357 Standard_String, -- Concat (String)
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358 Standard_Wide_String, -- Concat (Wide_String)
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359 Standard_Wide_Wide_String, -- Concat (Wide_Wide_String)
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360 Universal_Integer, -- Divide
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361 Standard_Boolean, -- Eq
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362 Universal_Integer, -- Expon
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363 Standard_Boolean, -- Ge
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364 Standard_Boolean, -- Gt
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365 Standard_Boolean, -- Le
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366 Standard_Boolean, -- Lt
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367 Universal_Integer, -- Mod
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368 Universal_Integer, -- Multiply
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369 Standard_Boolean, -- Ne
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370 Standard_Boolean, -- Or
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371 Universal_Integer, -- Rem
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372 Universal_Integer, -- Subtract
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373 Standard_Boolean); -- Xor
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374
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375 Unary_Ops : constant array (S_Unary_Ops) of Name_Id :=
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376
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377 -- There is one entry here for each unary operator
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378
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379 (Name_Op_Abs,
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380 Name_Op_Subtract,
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381 Name_Op_Not,
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382 Name_Op_Add);
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383
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384 Unary_Op_Types : constant array (S_Unary_Ops) of Entity_Id :=
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385
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386 -- This table has the corresponding result types. The entries are
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387 -- ordered so they correspond to the Unary_Ops array above.
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388
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389 (Universal_Integer, -- Abs
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390 Universal_Integer, -- Subtract
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391 Standard_Boolean, -- Not
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392 Universal_Integer); -- Add
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393
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394 begin
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395 for J in S_Binary_Ops loop
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396 Op_Node := New_Operator (Binary_Ops (J), Bin_Op_Types (J));
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397 SE (J) := Op_Node;
|
|
|
398 Append_Entity (Make_Formal (Any_Type, "LEFT"), Op_Node);
|
|
|
399 Append_Entity (Make_Formal (Any_Type, "RIGHT"), Op_Node);
|
|
|
400 end loop;
|
|
|
401
|
|
|
402 for J in S_Unary_Ops loop
|
|
|
403 Op_Node := New_Operator (Unary_Ops (J), Unary_Op_Types (J));
|
|
|
404 SE (J) := Op_Node;
|
|
|
405 Append_Entity (Make_Formal (Any_Type, "RIGHT"), Op_Node);
|
|
|
406 end loop;
|
|
|
407
|
|
|
408 -- For concatenation, we create a separate operator for each
|
|
|
409 -- array type. This simplifies the resolution of the component-
|
|
|
410 -- component concatenation operation. In Standard, we set the types
|
|
|
411 -- of the formals for string, wide [wide]_string, concatenations.
|
|
|
412
|
|
|
413 Set_Etype (First_Entity (Standard_Op_Concat), Standard_String);
|
|
|
414 Set_Etype (Last_Entity (Standard_Op_Concat), Standard_String);
|
|
|
415
|
|
|
416 Set_Etype (First_Entity (Standard_Op_Concatw), Standard_Wide_String);
|
|
|
417 Set_Etype (Last_Entity (Standard_Op_Concatw), Standard_Wide_String);
|
|
|
418
|
|
|
419 Set_Etype (First_Entity (Standard_Op_Concatww),
|
|
|
420 Standard_Wide_Wide_String);
|
|
|
421
|
|
|
422 Set_Etype (Last_Entity (Standard_Op_Concatww),
|
|
|
423 Standard_Wide_Wide_String);
|
|
|
424 end Create_Operators;
|
|
|
425
|
|
|
426 ---------------------
|
|
|
427 -- Create_Standard --
|
|
|
428 ---------------------
|
|
|
429
|
|
|
430 -- The tree for the package Standard is prefixed to all compilations.
|
|
|
431 -- Several entities required by semantic analysis are denoted by global
|
|
|
432 -- variables that are initialized to point to the corresponding occurrences
|
|
|
433 -- in Standard. The visible entities of Standard are created here. Special
|
|
|
434 -- entities maybe created here as well or may be created from the semantics
|
|
|
435 -- module. By not adding them to the Decls list of Standard they will not
|
|
|
436 -- be visible to Ada programs.
|
|
|
437
|
|
|
438 procedure Create_Standard is
|
|
|
439 Decl_S : constant List_Id := New_List;
|
|
|
440 -- List of declarations in Standard
|
|
|
441
|
|
|
442 Decl_A : constant List_Id := New_List;
|
|
|
443 -- List of declarations in ASCII
|
|
|
444
|
|
|
445 Decl : Node_Id;
|
|
|
446 Pspec : Node_Id;
|
|
|
447 Tdef_Node : Node_Id;
|
|
|
448 Ident_Node : Node_Id;
|
|
|
449 Ccode : Char_Code;
|
|
|
450 E_Id : Entity_Id;
|
|
|
451 R_Node : Node_Id;
|
|
|
452 B_Node : Node_Id;
|
|
|
453
|
|
|
454 procedure Build_Exception (S : Standard_Entity_Type);
|
|
|
455 -- Procedure to declare given entity as an exception
|
|
|
456
|
|
|
457 procedure Create_Back_End_Float_Types;
|
|
|
458 -- Initialize the Back_End_Float_Types list by having the back end
|
|
|
459 -- enumerate all available types and building type entities for them.
|
|
|
460
|
|
|
461 procedure Create_Float_Types;
|
|
|
462 -- Creates entities for all predefined floating point types, and
|
|
|
463 -- adds these to the Predefined_Float_Types list in package Standard.
|
|
|
464
|
|
|
465 procedure Make_Dummy_Index (E : Entity_Id);
|
|
|
466 -- Called to provide a dummy index field value for Any_Array/Any_String
|
|
|
467
|
|
|
468 procedure Pack_String_Type (String_Type : Entity_Id);
|
|
|
469 -- Generate proper tree for pragma Pack that applies to given type, and
|
|
|
470 -- mark type as having the pragma.
|
|
|
471
|
|
|
472 ---------------------
|
|
|
473 -- Build_Exception --
|
|
|
474 ---------------------
|
|
|
475
|
|
|
476 procedure Build_Exception (S : Standard_Entity_Type) is
|
|
|
477 begin
|
|
|
478 Set_Ekind (Standard_Entity (S), E_Exception);
|
|
|
479 Set_Etype (Standard_Entity (S), Standard_Exception_Type);
|
|
|
480 Set_Is_Public (Standard_Entity (S), True);
|
|
|
481
|
|
|
482 Decl :=
|
|
|
483 Make_Exception_Declaration (Stloc,
|
|
|
484 Defining_Identifier => Standard_Entity (S));
|
|
|
485 Append (Decl, Decl_S);
|
|
|
486 end Build_Exception;
|
|
|
487
|
|
|
488 ---------------------------------
|
|
|
489 -- Create_Back_End_Float_Types --
|
|
|
490 ---------------------------------
|
|
|
491
|
|
|
492 procedure Create_Back_End_Float_Types is
|
|
|
493 begin
|
|
|
494 for J in 1 .. Num_FPT_Modes loop
|
|
|
495 declare
|
|
|
496 E : FPT_Mode_Entry renames FPT_Mode_Table (J);
|
|
|
497 begin
|
|
|
498 Register_Float_Type
|
|
|
499 (E.NAME.all, E.DIGS, E.FLOAT_REP, E.PRECISION, E.SIZE,
|
|
|
500 E.ALIGNMENT);
|
|
|
501 end;
|
|
|
502 end loop;
|
|
|
503 end Create_Back_End_Float_Types;
|
|
|
504
|
|
|
505 ------------------------
|
|
|
506 -- Create_Float_Types --
|
|
|
507 ------------------------
|
|
|
508
|
|
|
509 procedure Create_Float_Types is
|
|
|
510 begin
|
|
|
511 -- Create type definition nodes for predefined float types
|
|
|
512
|
|
|
513 Copy_Float_Type
|
|
|
514 (Standard_Short_Float,
|
|
|
515 Find_Back_End_Float_Type (C_Type_For (S_Short_Float)));
|
|
|
516 Set_Is_Implementation_Defined (Standard_Short_Float);
|
|
|
517
|
|
|
518 Copy_Float_Type (Standard_Float, Standard_Short_Float);
|
|
|
519
|
|
|
520 Copy_Float_Type
|
|
|
521 (Standard_Long_Float,
|
|
|
522 Find_Back_End_Float_Type (C_Type_For (S_Long_Float)));
|
|
|
523
|
|
|
524 Copy_Float_Type
|
|
|
525 (Standard_Long_Long_Float,
|
|
|
526 Find_Back_End_Float_Type (C_Type_For (S_Long_Long_Float)));
|
|
|
527 Set_Is_Implementation_Defined (Standard_Long_Long_Float);
|
|
|
528
|
|
|
529 Predefined_Float_Types := New_Elmt_List;
|
|
|
530
|
|
|
531 Append_Elmt (Standard_Short_Float, Predefined_Float_Types);
|
|
|
532 Append_Elmt (Standard_Float, Predefined_Float_Types);
|
|
|
533 Append_Elmt (Standard_Long_Float, Predefined_Float_Types);
|
|
|
534 Append_Elmt (Standard_Long_Long_Float, Predefined_Float_Types);
|
|
|
535
|
|
|
536 -- Any other back end types are appended at the end of the list of
|
|
|
537 -- predefined float types, and will only be selected if the none of
|
|
|
538 -- the types in Standard is suitable, or if a specific named type is
|
|
|
539 -- requested through a pragma Import.
|
|
|
540
|
|
|
541 while not Is_Empty_Elmt_List (Back_End_Float_Types) loop
|
|
|
542 declare
|
|
|
543 E : constant Elmt_Id := First_Elmt (Back_End_Float_Types);
|
|
|
544 begin
|
|
|
545 Append_Elmt (Node (E), To => Predefined_Float_Types);
|
|
|
546 Remove_Elmt (Back_End_Float_Types, E);
|
|
|
547 end;
|
|
|
548 end loop;
|
|
|
549 end Create_Float_Types;
|
|
|
550
|
|
|
551 ----------------------
|
|
|
552 -- Make_Dummy_Index --
|
|
|
553 ----------------------
|
|
|
554
|
|
|
555 procedure Make_Dummy_Index (E : Entity_Id) is
|
|
|
556 Index : Node_Id;
|
|
|
557 Dummy : List_Id;
|
|
|
558
|
|
|
559 begin
|
|
|
560 Index :=
|
|
|
561 Make_Range (Sloc (E),
|
|
|
562 Low_Bound => Make_Integer (Uint_0),
|
|
|
563 High_Bound => Make_Integer (Uint_2 ** Standard_Integer_Size));
|
|
|
564 Set_Etype (Index, Standard_Integer);
|
|
|
565 Set_First_Index (E, Index);
|
|
|
566
|
|
|
567 -- Make sure Index is a list as required, so Next_Index is Empty
|
|
|
568
|
|
|
569 Dummy := New_List (Index);
|
|
|
570 end Make_Dummy_Index;
|
|
|
571
|
|
|
572 ----------------------
|
|
|
573 -- Pack_String_Type --
|
|
|
574 ----------------------
|
|
|
575
|
|
|
576 procedure Pack_String_Type (String_Type : Entity_Id) is
|
|
|
577 Prag : constant Node_Id :=
|
|
|
578 Make_Pragma (Stloc,
|
|
|
579 Chars => Name_Pack,
|
|
|
580 Pragma_Argument_Associations =>
|
|
|
581 New_List (
|
|
|
582 Make_Pragma_Argument_Association (Stloc,
|
|
|
583 Expression => New_Occurrence_Of (String_Type, Stloc))));
|
|
|
584 begin
|
|
|
585 Append (Prag, Decl_S);
|
|
|
586 Record_Rep_Item (String_Type, Prag);
|
|
|
587 Set_Has_Pragma_Pack (String_Type, True);
|
|
|
588 end Pack_String_Type;
|
|
|
589
|
|
|
590 -- Start of processing for Create_Standard
|
|
|
591
|
|
|
592 begin
|
|
|
593 -- First step is to create defining identifiers for each entity
|
|
|
594
|
|
|
595 for S in Standard_Entity_Type loop
|
|
|
596 declare
|
|
|
597 S_Name : constant String := Standard_Entity_Type'Image (S);
|
|
|
598 -- Name of entity (note we skip S_ at the start)
|
|
|
599
|
|
|
600 Ident_Node : Node_Id;
|
|
|
601 -- Defining identifier node
|
|
|
602
|
|
|
603 begin
|
|
|
604 Ident_Node := New_Standard_Entity;
|
|
|
605 Make_Name (Ident_Node, S_Name (3 .. S_Name'Length));
|
|
|
606 Standard_Entity (S) := Ident_Node;
|
|
|
607 end;
|
|
|
608 end loop;
|
|
|
609
|
|
|
610 -- Create package declaration node for package Standard
|
|
|
611
|
|
|
612 Standard_Package_Node := New_Node (N_Package_Declaration, Stloc);
|
|
|
613
|
|
|
614 Pspec := New_Node (N_Package_Specification, Stloc);
|
|
|
615 Set_Specification (Standard_Package_Node, Pspec);
|
|
|
616
|
|
|
617 Set_Defining_Unit_Name (Pspec, Standard_Standard);
|
|
|
618 Set_Visible_Declarations (Pspec, Decl_S);
|
|
|
619
|
|
|
620 Set_Ekind (Standard_Standard, E_Package);
|
|
|
621 Set_Is_Pure (Standard_Standard);
|
|
|
622 Set_Is_Compilation_Unit (Standard_Standard);
|
|
|
623
|
|
|
624 -- Create type/subtype declaration nodes for standard types
|
|
|
625
|
|
|
626 for S in S_Types loop
|
|
|
627
|
|
|
628 -- Subtype declaration case
|
|
|
629
|
|
|
630 if S = S_Natural or else S = S_Positive then
|
|
|
631 Decl := New_Node (N_Subtype_Declaration, Stloc);
|
|
|
632 Set_Subtype_Indication (Decl,
|
|
|
633 New_Occurrence_Of (Standard_Integer, Stloc));
|
|
|
634
|
|
|
635 -- Full type declaration case
|
|
|
636
|
|
|
637 else
|
|
|
638 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
639 end if;
|
|
|
640
|
|
|
641 Set_Is_Frozen (Standard_Entity (S));
|
|
|
642 Set_Is_Public (Standard_Entity (S));
|
|
|
643 Set_Defining_Identifier (Decl, Standard_Entity (S));
|
|
|
644 Append (Decl, Decl_S);
|
|
|
645 end loop;
|
|
|
646
|
|
|
647 Create_Back_End_Float_Types;
|
|
|
648
|
|
|
649 -- Create type definition node for type Boolean. The Size is set to
|
|
|
650 -- 1 as required by Ada 95 and current ARG interpretations for Ada/83.
|
|
|
651
|
|
|
652 -- Note: Object_Size of Boolean is 8. This means that we do NOT in
|
|
|
653 -- general know that Boolean variables have valid values, so we do
|
|
|
654 -- not set the Is_Known_Valid flag.
|
|
|
655
|
|
|
656 Tdef_Node := New_Node (N_Enumeration_Type_Definition, Stloc);
|
|
|
657 Set_Literals (Tdef_Node, New_List);
|
|
|
658 Append (Standard_False, Literals (Tdef_Node));
|
|
|
659 Append (Standard_True, Literals (Tdef_Node));
|
|
|
660 Set_Type_Definition (Parent (Standard_Boolean), Tdef_Node);
|
|
|
661
|
|
|
662 Set_Ekind (Standard_Boolean, E_Enumeration_Type);
|
|
|
663 Set_First_Literal (Standard_Boolean, Standard_False);
|
|
|
664 Set_Etype (Standard_Boolean, Standard_Boolean);
|
|
|
665 Init_Esize (Standard_Boolean, Standard_Character_Size);
|
|
|
666 Init_RM_Size (Standard_Boolean, 1);
|
|
|
667 Set_Elem_Alignment (Standard_Boolean);
|
|
|
668
|
|
|
669 Set_Is_Unsigned_Type (Standard_Boolean);
|
|
|
670 Set_Size_Known_At_Compile_Time (Standard_Boolean);
|
|
|
671 Set_Has_Pragma_Ordered (Standard_Boolean);
|
|
|
672
|
|
|
673 Set_Ekind (Standard_True, E_Enumeration_Literal);
|
|
|
674 Set_Etype (Standard_True, Standard_Boolean);
|
|
|
675 Set_Enumeration_Pos (Standard_True, Uint_1);
|
|
|
676 Set_Enumeration_Rep (Standard_True, Uint_1);
|
|
|
677 Set_Is_Known_Valid (Standard_True, True);
|
|
|
678
|
|
|
679 Set_Ekind (Standard_False, E_Enumeration_Literal);
|
|
|
680 Set_Etype (Standard_False, Standard_Boolean);
|
|
|
681 Set_Enumeration_Pos (Standard_False, Uint_0);
|
|
|
682 Set_Enumeration_Rep (Standard_False, Uint_0);
|
|
|
683 Set_Is_Known_Valid (Standard_False, True);
|
|
|
684
|
|
|
685 -- For the bounds of Boolean, we create a range node corresponding to
|
|
|
686
|
|
|
687 -- range False .. True
|
|
|
688
|
|
|
689 -- where the occurrences of the literals must point to the
|
|
|
690 -- corresponding definition.
|
|
|
691
|
|
|
692 R_Node := New_Node (N_Range, Stloc);
|
|
|
693 B_Node := New_Node (N_Identifier, Stloc);
|
|
|
694 Set_Chars (B_Node, Chars (Standard_False));
|
|
|
695 Set_Entity (B_Node, Standard_False);
|
|
|
696 Set_Etype (B_Node, Standard_Boolean);
|
|
|
697 Set_Is_Static_Expression (B_Node);
|
|
|
698 Set_Low_Bound (R_Node, B_Node);
|
|
|
699
|
|
|
700 B_Node := New_Node (N_Identifier, Stloc);
|
|
|
701 Set_Chars (B_Node, Chars (Standard_True));
|
|
|
702 Set_Entity (B_Node, Standard_True);
|
|
|
703 Set_Etype (B_Node, Standard_Boolean);
|
|
|
704 Set_Is_Static_Expression (B_Node);
|
|
|
705 Set_High_Bound (R_Node, B_Node);
|
|
|
706
|
|
|
707 Set_Scalar_Range (Standard_Boolean, R_Node);
|
|
|
708 Set_Etype (R_Node, Standard_Boolean);
|
|
|
709 Set_Parent (R_Node, Standard_Boolean);
|
|
|
710
|
|
|
711 -- Record entity identifiers for boolean literals in the
|
|
|
712 -- Boolean_Literals array, for easy reference during expansion.
|
|
|
713
|
|
|
714 Boolean_Literals := (False => Standard_False, True => Standard_True);
|
|
|
715
|
|
|
716 -- Create type definition nodes for predefined integer types
|
|
|
717
|
|
|
718 Build_Signed_Integer_Type
|
|
|
719 (Standard_Short_Short_Integer, Standard_Short_Short_Integer_Size);
|
|
145
|
720 Set_Is_Implementation_Defined (Standard_Short_Short_Integer);
|
|
111
|
721
|
|
|
722 Build_Signed_Integer_Type
|
|
|
723 (Standard_Short_Integer, Standard_Short_Integer_Size);
|
|
|
724 Set_Is_Implementation_Defined (Standard_Short_Integer);
|
|
|
725
|
|
|
726 Build_Signed_Integer_Type
|
|
|
727 (Standard_Integer, Standard_Integer_Size);
|
|
|
728
|
|
|
729 Build_Signed_Integer_Type
|
|
|
730 (Standard_Long_Integer, Standard_Long_Integer_Size);
|
|
|
731
|
|
|
732 Build_Signed_Integer_Type
|
|
|
733 (Standard_Long_Long_Integer, Standard_Long_Long_Integer_Size);
|
|
|
734 Set_Is_Implementation_Defined (Standard_Long_Long_Integer);
|
|
|
735
|
|
|
736 Create_Unconstrained_Base_Type
|
|
|
737 (Standard_Short_Short_Integer, E_Signed_Integer_Subtype);
|
|
|
738
|
|
|
739 Create_Unconstrained_Base_Type
|
|
|
740 (Standard_Short_Integer, E_Signed_Integer_Subtype);
|
|
|
741
|
|
|
742 Create_Unconstrained_Base_Type
|
|
|
743 (Standard_Integer, E_Signed_Integer_Subtype);
|
|
|
744
|
|
|
745 Create_Unconstrained_Base_Type
|
|
|
746 (Standard_Long_Integer, E_Signed_Integer_Subtype);
|
|
|
747
|
|
|
748 Create_Unconstrained_Base_Type
|
|
|
749 (Standard_Long_Long_Integer, E_Signed_Integer_Subtype);
|
|
|
750
|
|
|
751 Create_Float_Types;
|
|
|
752
|
|
|
753 -- Create type definition node for type Character. Note that we do not
|
|
|
754 -- set the Literals field, since type Character is handled with special
|
|
|
755 -- routine that do not need a literal list.
|
|
|
756
|
|
|
757 Tdef_Node := New_Node (N_Enumeration_Type_Definition, Stloc);
|
|
|
758 Set_Type_Definition (Parent (Standard_Character), Tdef_Node);
|
|
|
759
|
|
|
760 Set_Ekind (Standard_Character, E_Enumeration_Type);
|
|
|
761 Set_Etype (Standard_Character, Standard_Character);
|
|
|
762 Init_Esize (Standard_Character, Standard_Character_Size);
|
|
|
763 Init_RM_Size (Standard_Character, 8);
|
|
|
764 Set_Elem_Alignment (Standard_Character);
|
|
|
765
|
|
|
766 Set_Has_Pragma_Ordered (Standard_Character);
|
|
|
767 Set_Is_Unsigned_Type (Standard_Character);
|
|
|
768 Set_Is_Character_Type (Standard_Character);
|
|
|
769 Set_Is_Known_Valid (Standard_Character);
|
|
|
770 Set_Size_Known_At_Compile_Time (Standard_Character);
|
|
|
771
|
|
|
772 -- Create the bounds for type Character
|
|
|
773
|
|
|
774 R_Node := New_Node (N_Range, Stloc);
|
|
|
775
|
|
|
776 -- Low bound for type Character (Standard.Nul)
|
|
|
777
|
|
|
778 B_Node := New_Node (N_Character_Literal, Stloc);
|
|
|
779 Set_Is_Static_Expression (B_Node);
|
|
|
780 Set_Chars (B_Node, No_Name);
|
|
|
781 Set_Char_Literal_Value (B_Node, Uint_0);
|
|
|
782 Set_Entity (B_Node, Empty);
|
|
|
783 Set_Etype (B_Node, Standard_Character);
|
|
|
784 Set_Low_Bound (R_Node, B_Node);
|
|
|
785
|
|
|
786 -- High bound for type Character
|
|
|
787
|
|
|
788 B_Node := New_Node (N_Character_Literal, Stloc);
|
|
|
789 Set_Is_Static_Expression (B_Node);
|
|
|
790 Set_Chars (B_Node, No_Name);
|
|
|
791 Set_Char_Literal_Value (B_Node, UI_From_Int (16#FF#));
|
|
|
792 Set_Entity (B_Node, Empty);
|
|
|
793 Set_Etype (B_Node, Standard_Character);
|
|
|
794 Set_High_Bound (R_Node, B_Node);
|
|
|
795
|
|
|
796 Set_Scalar_Range (Standard_Character, R_Node);
|
|
|
797 Set_Etype (R_Node, Standard_Character);
|
|
|
798 Set_Parent (R_Node, Standard_Character);
|
|
|
799
|
|
|
800 -- Create type definition for type Wide_Character. Note that we do not
|
|
|
801 -- set the Literals field, since type Wide_Character is handled with
|
|
|
802 -- special routines that do not need a literal list.
|
|
|
803
|
|
|
804 Tdef_Node := New_Node (N_Enumeration_Type_Definition, Stloc);
|
|
|
805 Set_Type_Definition (Parent (Standard_Wide_Character), Tdef_Node);
|
|
|
806
|
|
|
807 Set_Ekind (Standard_Wide_Character, E_Enumeration_Type);
|
|
|
808 Set_Etype (Standard_Wide_Character, Standard_Wide_Character);
|
|
|
809 Init_Size (Standard_Wide_Character, Standard_Wide_Character_Size);
|
|
|
810
|
|
|
811 Set_Elem_Alignment (Standard_Wide_Character);
|
|
|
812 Set_Has_Pragma_Ordered (Standard_Wide_Character);
|
|
|
813 Set_Is_Unsigned_Type (Standard_Wide_Character);
|
|
|
814 Set_Is_Character_Type (Standard_Wide_Character);
|
|
|
815 Set_Is_Known_Valid (Standard_Wide_Character);
|
|
|
816 Set_Size_Known_At_Compile_Time (Standard_Wide_Character);
|
|
|
817
|
|
|
818 -- Create the bounds for type Wide_Character
|
|
|
819
|
|
|
820 R_Node := New_Node (N_Range, Stloc);
|
|
|
821
|
|
|
822 -- Low bound for type Wide_Character
|
|
|
823
|
|
|
824 B_Node := New_Node (N_Character_Literal, Stloc);
|
|
|
825 Set_Is_Static_Expression (B_Node);
|
|
|
826 Set_Chars (B_Node, No_Name); -- ???
|
|
|
827 Set_Char_Literal_Value (B_Node, Uint_0);
|
|
|
828 Set_Entity (B_Node, Empty);
|
|
|
829 Set_Etype (B_Node, Standard_Wide_Character);
|
|
|
830 Set_Low_Bound (R_Node, B_Node);
|
|
|
831
|
|
|
832 -- High bound for type Wide_Character
|
|
|
833
|
|
|
834 B_Node := New_Node (N_Character_Literal, Stloc);
|
|
|
835 Set_Is_Static_Expression (B_Node);
|
|
|
836 Set_Chars (B_Node, No_Name); -- ???
|
|
|
837 Set_Char_Literal_Value (B_Node, UI_From_Int (16#FFFF#));
|
|
|
838 Set_Entity (B_Node, Empty);
|
|
|
839 Set_Etype (B_Node, Standard_Wide_Character);
|
|
|
840 Set_High_Bound (R_Node, B_Node);
|
|
|
841
|
|
|
842 Set_Scalar_Range (Standard_Wide_Character, R_Node);
|
|
|
843 Set_Etype (R_Node, Standard_Wide_Character);
|
|
|
844 Set_Parent (R_Node, Standard_Wide_Character);
|
|
|
845
|
|
|
846 -- Create type definition for type Wide_Wide_Character. Note that we
|
|
|
847 -- do not set the Literals field, since type Wide_Wide_Character is
|
|
|
848 -- handled with special routines that do not need a literal list.
|
|
|
849
|
|
|
850 Tdef_Node := New_Node (N_Enumeration_Type_Definition, Stloc);
|
|
|
851 Set_Type_Definition (Parent (Standard_Wide_Wide_Character), Tdef_Node);
|
|
|
852
|
|
|
853 Set_Ekind (Standard_Wide_Wide_Character, E_Enumeration_Type);
|
|
|
854 Set_Etype (Standard_Wide_Wide_Character,
|
|
|
855 Standard_Wide_Wide_Character);
|
|
|
856 Init_Size (Standard_Wide_Wide_Character,
|
|
|
857 Standard_Wide_Wide_Character_Size);
|
|
|
858
|
|
|
859 Set_Elem_Alignment (Standard_Wide_Wide_Character);
|
|
|
860 Set_Has_Pragma_Ordered (Standard_Wide_Wide_Character);
|
|
|
861 Set_Is_Unsigned_Type (Standard_Wide_Wide_Character);
|
|
|
862 Set_Is_Character_Type (Standard_Wide_Wide_Character);
|
|
|
863 Set_Is_Known_Valid (Standard_Wide_Wide_Character);
|
|
|
864 Set_Size_Known_At_Compile_Time (Standard_Wide_Wide_Character);
|
|
|
865 Set_Is_Ada_2005_Only (Standard_Wide_Wide_Character);
|
|
|
866
|
|
|
867 -- Create the bounds for type Wide_Wide_Character
|
|
|
868
|
|
|
869 R_Node := New_Node (N_Range, Stloc);
|
|
|
870
|
|
|
871 -- Low bound for type Wide_Wide_Character
|
|
|
872
|
|
|
873 B_Node := New_Node (N_Character_Literal, Stloc);
|
|
|
874 Set_Is_Static_Expression (B_Node);
|
|
|
875 Set_Chars (B_Node, No_Name); -- ???
|
|
|
876 Set_Char_Literal_Value (B_Node, Uint_0);
|
|
|
877 Set_Entity (B_Node, Empty);
|
|
|
878 Set_Etype (B_Node, Standard_Wide_Wide_Character);
|
|
|
879 Set_Low_Bound (R_Node, B_Node);
|
|
|
880
|
|
|
881 -- High bound for type Wide_Wide_Character
|
|
|
882
|
|
|
883 B_Node := New_Node (N_Character_Literal, Stloc);
|
|
|
884 Set_Is_Static_Expression (B_Node);
|
|
|
885 Set_Chars (B_Node, No_Name); -- ???
|
|
|
886 Set_Char_Literal_Value (B_Node, UI_From_Int (16#7FFF_FFFF#));
|
|
|
887 Set_Entity (B_Node, Empty);
|
|
|
888 Set_Etype (B_Node, Standard_Wide_Wide_Character);
|
|
|
889 Set_High_Bound (R_Node, B_Node);
|
|
|
890
|
|
|
891 Set_Scalar_Range (Standard_Wide_Wide_Character, R_Node);
|
|
|
892 Set_Etype (R_Node, Standard_Wide_Wide_Character);
|
|
|
893 Set_Parent (R_Node, Standard_Wide_Wide_Character);
|
|
|
894
|
|
|
895 -- Create type definition node for type String
|
|
|
896
|
|
|
897 Tdef_Node := New_Node (N_Unconstrained_Array_Definition, Stloc);
|
|
|
898
|
|
|
899 declare
|
|
|
900 CompDef_Node : Node_Id;
|
|
|
901 begin
|
|
|
902 CompDef_Node := New_Node (N_Component_Definition, Stloc);
|
|
|
903 Set_Aliased_Present (CompDef_Node, False);
|
|
|
904 Set_Access_Definition (CompDef_Node, Empty);
|
|
|
905 Set_Subtype_Indication (CompDef_Node, Identifier_For (S_Character));
|
|
|
906 Set_Component_Definition (Tdef_Node, CompDef_Node);
|
|
|
907 end;
|
|
|
908
|
|
|
909 Set_Subtype_Marks (Tdef_Node, New_List);
|
|
|
910 Append (Identifier_For (S_Positive), Subtype_Marks (Tdef_Node));
|
|
|
911 Set_Type_Definition (Parent (Standard_String), Tdef_Node);
|
|
|
912
|
|
|
913 Set_Ekind (Standard_String, E_Array_Type);
|
|
|
914 Set_Etype (Standard_String, Standard_String);
|
|
|
915 Set_Component_Type (Standard_String, Standard_Character);
|
|
|
916 Set_Component_Size (Standard_String, Uint_8);
|
|
|
917 Init_Size_Align (Standard_String);
|
|
|
918 Set_Alignment (Standard_String, Uint_1);
|
|
|
919 Pack_String_Type (Standard_String);
|
|
|
920
|
|
|
921 -- On targets where a storage unit is larger than a byte (such as AAMP),
|
|
|
922 -- pragma Pack has a real effect on the representation of type String,
|
|
|
923 -- and the type must be marked as having a nonstandard representation.
|
|
|
924
|
|
|
925 if System_Storage_Unit > Uint_8 then
|
|
|
926 Set_Has_Non_Standard_Rep (Standard_String);
|
|
|
927 Set_Has_Pragma_Pack (Standard_String);
|
|
|
928 end if;
|
|
|
929
|
|
|
930 -- Set index type of String
|
|
|
931
|
|
|
932 E_Id :=
|
|
|
933 First (Subtype_Marks (Type_Definition (Parent (Standard_String))));
|
|
|
934 Set_First_Index (Standard_String, E_Id);
|
|
|
935 Set_Entity (E_Id, Standard_Positive);
|
|
|
936 Set_Etype (E_Id, Standard_Positive);
|
|
|
937
|
|
|
938 -- Create type definition node for type Wide_String
|
|
|
939
|
|
|
940 Tdef_Node := New_Node (N_Unconstrained_Array_Definition, Stloc);
|
|
|
941
|
|
|
942 declare
|
|
|
943 CompDef_Node : Node_Id;
|
|
|
944 begin
|
|
|
945 CompDef_Node := New_Node (N_Component_Definition, Stloc);
|
|
|
946 Set_Aliased_Present (CompDef_Node, False);
|
|
|
947 Set_Access_Definition (CompDef_Node, Empty);
|
|
|
948 Set_Subtype_Indication (CompDef_Node,
|
|
|
949 Identifier_For (S_Wide_Character));
|
|
|
950 Set_Component_Definition (Tdef_Node, CompDef_Node);
|
|
|
951 end;
|
|
|
952
|
|
|
953 Set_Subtype_Marks (Tdef_Node, New_List);
|
|
|
954 Append (Identifier_For (S_Positive), Subtype_Marks (Tdef_Node));
|
|
|
955 Set_Type_Definition (Parent (Standard_Wide_String), Tdef_Node);
|
|
|
956
|
|
|
957 Set_Ekind (Standard_Wide_String, E_Array_Type);
|
|
|
958 Set_Etype (Standard_Wide_String, Standard_Wide_String);
|
|
|
959 Set_Component_Type (Standard_Wide_String, Standard_Wide_Character);
|
|
|
960 Set_Component_Size (Standard_Wide_String, Uint_16);
|
|
|
961 Init_Size_Align (Standard_Wide_String);
|
|
|
962 Pack_String_Type (Standard_Wide_String);
|
|
|
963
|
|
|
964 -- Set index type of Wide_String
|
|
|
965
|
|
|
966 E_Id :=
|
|
|
967 First
|
|
|
968 (Subtype_Marks (Type_Definition (Parent (Standard_Wide_String))));
|
|
|
969 Set_First_Index (Standard_Wide_String, E_Id);
|
|
|
970 Set_Entity (E_Id, Standard_Positive);
|
|
|
971 Set_Etype (E_Id, Standard_Positive);
|
|
|
972
|
|
|
973 -- Create type definition node for type Wide_Wide_String
|
|
|
974
|
|
|
975 Tdef_Node := New_Node (N_Unconstrained_Array_Definition, Stloc);
|
|
|
976
|
|
|
977 declare
|
|
|
978 CompDef_Node : Node_Id;
|
|
|
979 begin
|
|
|
980 CompDef_Node := New_Node (N_Component_Definition, Stloc);
|
|
|
981 Set_Aliased_Present (CompDef_Node, False);
|
|
|
982 Set_Access_Definition (CompDef_Node, Empty);
|
|
|
983 Set_Subtype_Indication (CompDef_Node,
|
|
|
984 Identifier_For (S_Wide_Wide_Character));
|
|
|
985 Set_Component_Definition (Tdef_Node, CompDef_Node);
|
|
|
986 end;
|
|
|
987
|
|
|
988 Set_Subtype_Marks (Tdef_Node, New_List);
|
|
|
989 Append (Identifier_For (S_Positive), Subtype_Marks (Tdef_Node));
|
|
|
990 Set_Type_Definition (Parent (Standard_Wide_Wide_String), Tdef_Node);
|
|
|
991
|
|
|
992 Set_Ekind (Standard_Wide_Wide_String, E_Array_Type);
|
|
|
993 Set_Etype (Standard_Wide_Wide_String,
|
|
|
994 Standard_Wide_Wide_String);
|
|
|
995 Set_Component_Type (Standard_Wide_Wide_String,
|
|
|
996 Standard_Wide_Wide_Character);
|
|
|
997 Set_Component_Size (Standard_Wide_Wide_String, Uint_32);
|
|
|
998 Init_Size_Align (Standard_Wide_Wide_String);
|
|
|
999 Set_Is_Ada_2005_Only (Standard_Wide_Wide_String);
|
|
|
1000 Pack_String_Type (Standard_Wide_Wide_String);
|
|
|
1001
|
|
|
1002 -- Set index type of Wide_Wide_String
|
|
|
1003
|
|
|
1004 E_Id :=
|
|
|
1005 First
|
|
|
1006 (Subtype_Marks
|
|
|
1007 (Type_Definition (Parent (Standard_Wide_Wide_String))));
|
|
|
1008 Set_First_Index (Standard_Wide_Wide_String, E_Id);
|
|
|
1009 Set_Entity (E_Id, Standard_Positive);
|
|
|
1010 Set_Etype (E_Id, Standard_Positive);
|
|
|
1011
|
|
|
1012 -- Setup entity for Natural
|
|
|
1013
|
|
|
1014 Set_Ekind (Standard_Natural, E_Signed_Integer_Subtype);
|
|
|
1015 Set_Etype (Standard_Natural, Base_Type (Standard_Integer));
|
|
|
1016 Init_Esize (Standard_Natural, Standard_Integer_Size);
|
|
|
1017 Init_RM_Size (Standard_Natural, Standard_Integer_Size - 1);
|
|
|
1018 Set_Elem_Alignment (Standard_Natural);
|
|
|
1019 Set_Size_Known_At_Compile_Time
|
|
|
1020 (Standard_Natural);
|
|
|
1021 Set_Integer_Bounds (Standard_Natural,
|
|
|
1022 Typ => Base_Type (Standard_Integer),
|
|
|
1023 Lb => Uint_0,
|
|
|
1024 Hb => Intval (High_Bound (Scalar_Range (Standard_Integer))));
|
|
|
1025 Set_Is_Constrained (Standard_Natural);
|
|
|
1026
|
|
|
1027 -- Setup entity for Positive
|
|
|
1028
|
|
|
1029 Set_Ekind (Standard_Positive, E_Signed_Integer_Subtype);
|
|
|
1030 Set_Etype (Standard_Positive, Base_Type (Standard_Integer));
|
|
|
1031 Init_Esize (Standard_Positive, Standard_Integer_Size);
|
|
|
1032 Init_RM_Size (Standard_Positive, Standard_Integer_Size - 1);
|
|
|
1033 Set_Elem_Alignment (Standard_Positive);
|
|
|
1034
|
|
|
1035 Set_Size_Known_At_Compile_Time (Standard_Positive);
|
|
|
1036
|
|
|
1037 Set_Integer_Bounds (Standard_Positive,
|
|
|
1038 Typ => Base_Type (Standard_Integer),
|
|
|
1039 Lb => Uint_1,
|
|
|
1040 Hb => Intval (High_Bound (Scalar_Range (Standard_Integer))));
|
|
|
1041 Set_Is_Constrained (Standard_Positive);
|
|
|
1042
|
|
|
1043 -- Create declaration for package ASCII
|
|
|
1044
|
|
|
1045 Decl := New_Node (N_Package_Declaration, Stloc);
|
|
|
1046 Append (Decl, Decl_S);
|
|
|
1047
|
|
|
1048 Pspec := New_Node (N_Package_Specification, Stloc);
|
|
|
1049 Set_Specification (Decl, Pspec);
|
|
|
1050
|
|
|
1051 Set_Defining_Unit_Name (Pspec, Standard_Entity (S_ASCII));
|
|
|
1052 Set_Ekind (Standard_Entity (S_ASCII), E_Package);
|
|
|
1053 Set_Visible_Declarations (Pspec, Decl_A);
|
|
|
1054
|
|
|
1055 -- Create control character definitions in package ASCII. Note that
|
|
|
1056 -- the character literal entries created here correspond to literal
|
|
|
1057 -- values that are impossible in the source, but can be represented
|
|
|
1058 -- internally with no difficulties.
|
|
|
1059
|
|
|
1060 Ccode := 16#00#;
|
|
|
1061
|
|
|
1062 for S in S_ASCII_Names loop
|
|
|
1063 Decl := New_Node (N_Object_Declaration, Staloc);
|
|
|
1064 Set_Constant_Present (Decl, True);
|
|
|
1065
|
|
|
1066 declare
|
|
|
1067 A_Char : constant Entity_Id := Standard_Entity (S);
|
|
|
1068 Expr_Decl : Node_Id;
|
|
|
1069
|
|
|
1070 begin
|
|
|
1071 Set_Sloc (A_Char, Staloc);
|
|
|
1072 Set_Ekind (A_Char, E_Constant);
|
|
|
1073 Set_Never_Set_In_Source (A_Char, True);
|
|
|
1074 Set_Is_True_Constant (A_Char, True);
|
|
|
1075 Set_Etype (A_Char, Standard_Character);
|
|
|
1076 Set_Scope (A_Char, Standard_Entity (S_ASCII));
|
|
|
1077 Set_Is_Immediately_Visible (A_Char, False);
|
|
|
1078 Set_Is_Public (A_Char, True);
|
|
|
1079 Set_Is_Known_Valid (A_Char, True);
|
|
|
1080
|
|
|
1081 Append_Entity (A_Char, Standard_Entity (S_ASCII));
|
|
|
1082 Set_Defining_Identifier (Decl, A_Char);
|
|
|
1083
|
|
|
1084 Set_Object_Definition (Decl, Identifier_For (S_Character));
|
|
|
1085 Expr_Decl := New_Node (N_Character_Literal, Staloc);
|
|
|
1086 Set_Expression (Decl, Expr_Decl);
|
|
|
1087
|
|
|
1088 Set_Is_Static_Expression (Expr_Decl);
|
|
|
1089 Set_Chars (Expr_Decl, No_Name);
|
|
|
1090 Set_Etype (Expr_Decl, Standard_Character);
|
|
|
1091 Set_Char_Literal_Value (Expr_Decl, UI_From_Int (Int (Ccode)));
|
|
|
1092 end;
|
|
|
1093
|
|
|
1094 Append (Decl, Decl_A);
|
|
|
1095
|
|
|
1096 -- Increment character code, dealing with non-contiguities
|
|
|
1097
|
|
|
1098 Ccode := Ccode + 1;
|
|
|
1099
|
|
|
1100 if Ccode = 16#20# then
|
|
|
1101 Ccode := 16#21#;
|
|
|
1102 elsif Ccode = 16#27# then
|
|
|
1103 Ccode := 16#3A#;
|
|
|
1104 elsif Ccode = 16#3C# then
|
|
|
1105 Ccode := 16#3F#;
|
|
|
1106 elsif Ccode = 16#41# then
|
|
|
1107 Ccode := 16#5B#;
|
|
|
1108 end if;
|
|
|
1109 end loop;
|
|
|
1110
|
|
|
1111 -- Create semantic phase entities
|
|
|
1112
|
|
|
1113 Standard_Void_Type := New_Standard_Entity;
|
|
|
1114 Set_Ekind (Standard_Void_Type, E_Void);
|
|
|
1115 Set_Etype (Standard_Void_Type, Standard_Void_Type);
|
|
|
1116 Set_Scope (Standard_Void_Type, Standard_Standard);
|
|
|
1117 Make_Name (Standard_Void_Type, "_void_type");
|
|
|
1118
|
|
|
1119 -- The type field of packages is set to void
|
|
|
1120
|
|
|
1121 Set_Etype (Standard_Standard, Standard_Void_Type);
|
|
|
1122 Set_Etype (Standard_ASCII, Standard_Void_Type);
|
|
|
1123
|
|
|
1124 -- Standard_A_String is actually used in generated code, so it has a
|
|
|
1125 -- type name that is reasonable, but does not overlap any Ada name.
|
|
|
1126
|
|
|
1127 Standard_A_String := New_Standard_Entity;
|
|
|
1128 Set_Ekind (Standard_A_String, E_Access_Type);
|
|
|
1129 Set_Scope (Standard_A_String, Standard_Standard);
|
|
|
1130 Set_Etype (Standard_A_String, Standard_A_String);
|
|
|
1131
|
|
|
1132 if Debug_Flag_6 then
|
|
|
1133 Init_Size (Standard_A_String, System_Address_Size);
|
|
|
1134 else
|
|
|
1135 Init_Size (Standard_A_String, System_Address_Size * 2);
|
|
|
1136 end if;
|
|
|
1137
|
|
|
1138 Init_Alignment (Standard_A_String);
|
|
|
1139
|
|
|
1140 Set_Directly_Designated_Type
|
|
|
1141 (Standard_A_String, Standard_String);
|
|
|
1142 Make_Name (Standard_A_String, "access_string");
|
|
|
1143
|
|
|
1144 Standard_A_Char := New_Standard_Entity;
|
|
|
1145 Set_Ekind (Standard_A_Char, E_Access_Type);
|
|
|
1146 Set_Scope (Standard_A_Char, Standard_Standard);
|
|
|
1147 Set_Etype (Standard_A_Char, Standard_A_String);
|
|
|
1148 Init_Size (Standard_A_Char, System_Address_Size);
|
|
|
1149 Set_Elem_Alignment (Standard_A_Char);
|
|
|
1150
|
|
|
1151 Set_Directly_Designated_Type (Standard_A_Char, Standard_Character);
|
|
|
1152 Make_Name (Standard_A_Char, "access_character");
|
|
|
1153
|
|
|
1154 -- Standard_Debug_Renaming_Type is used for the special objects created
|
|
|
1155 -- to encode the names occurring in renaming declarations for use by the
|
|
|
1156 -- debugger (see exp_dbug.adb). The type is a zero-sized subtype of
|
|
|
1157 -- Standard.Integer.
|
|
|
1158
|
|
|
1159 Standard_Debug_Renaming_Type := New_Standard_Entity;
|
|
|
1160
|
|
|
1161 Set_Ekind (Standard_Debug_Renaming_Type, E_Signed_Integer_Subtype);
|
|
|
1162 Set_Scope (Standard_Debug_Renaming_Type, Standard_Standard);
|
|
|
1163 Set_Etype (Standard_Debug_Renaming_Type, Base_Type (Standard_Integer));
|
|
|
1164 Init_Esize (Standard_Debug_Renaming_Type, 0);
|
|
|
1165 Init_RM_Size (Standard_Debug_Renaming_Type, 0);
|
|
|
1166 Set_Size_Known_At_Compile_Time (Standard_Debug_Renaming_Type);
|
|
|
1167 Set_Integer_Bounds (Standard_Debug_Renaming_Type,
|
|
|
1168 Typ => Base_Type (Standard_Debug_Renaming_Type),
|
|
|
1169 Lb => Uint_1,
|
|
|
1170 Hb => Uint_0);
|
|
|
1171 Set_Is_Constrained (Standard_Debug_Renaming_Type);
|
|
|
1172 Set_Has_Size_Clause (Standard_Debug_Renaming_Type);
|
|
|
1173
|
|
|
1174 Make_Name (Standard_Debug_Renaming_Type, "_renaming_type");
|
|
|
1175
|
|
|
1176 -- Note on type names. The type names for the following special types
|
|
|
1177 -- are constructed so that they will look reasonable should they ever
|
|
|
1178 -- appear in error messages etc, although in practice the use of the
|
|
|
1179 -- special insertion character } for types results in special handling
|
|
|
1180 -- of these type names in any case. The blanks in these names would
|
|
|
1181 -- trouble in Gigi, but that's OK here, since none of these types
|
|
|
1182 -- should ever get through to Gigi. Attributes of these types are
|
|
|
1183 -- filled out to minimize problems with cascaded errors (for example,
|
|
|
1184 -- Any_Integer is given reasonable and consistent type and size values)
|
|
|
1185
|
|
|
1186 Any_Type := New_Standard_Entity ("any type");
|
|
|
1187 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1188 Set_Defining_Identifier (Decl, Any_Type);
|
|
|
1189 Set_Scope (Any_Type, Standard_Standard);
|
|
|
1190 Build_Signed_Integer_Type (Any_Type, Standard_Integer_Size);
|
|
|
1191
|
|
|
1192 Any_Id := New_Standard_Entity ("any id");
|
|
|
1193 Set_Ekind (Any_Id, E_Variable);
|
|
|
1194 Set_Scope (Any_Id, Standard_Standard);
|
|
|
1195 Set_Etype (Any_Id, Any_Type);
|
|
|
1196 Init_Esize (Any_Id);
|
|
|
1197 Init_Alignment (Any_Id);
|
|
|
1198
|
|
|
1199 Any_Access := New_Standard_Entity ("an access type");
|
|
|
1200 Set_Ekind (Any_Access, E_Access_Type);
|
|
|
1201 Set_Scope (Any_Access, Standard_Standard);
|
|
|
1202 Set_Etype (Any_Access, Any_Access);
|
|
|
1203 Init_Size (Any_Access, System_Address_Size);
|
|
|
1204 Set_Elem_Alignment (Any_Access);
|
|
|
1205 Set_Directly_Designated_Type
|
|
|
1206 (Any_Access, Any_Type);
|
|
|
1207
|
|
|
1208 Any_Character := New_Standard_Entity ("a character type");
|
|
|
1209 Set_Ekind (Any_Character, E_Enumeration_Type);
|
|
|
1210 Set_Scope (Any_Character, Standard_Standard);
|
|
|
1211 Set_Etype (Any_Character, Any_Character);
|
|
|
1212 Set_Is_Unsigned_Type (Any_Character);
|
|
|
1213 Set_Is_Character_Type (Any_Character);
|
|
|
1214 Init_Esize (Any_Character, Standard_Character_Size);
|
|
|
1215 Init_RM_Size (Any_Character, 8);
|
|
|
1216 Set_Elem_Alignment (Any_Character);
|
|
|
1217 Set_Scalar_Range (Any_Character, Scalar_Range (Standard_Character));
|
|
|
1218
|
|
|
1219 Any_Array := New_Standard_Entity ("an array type");
|
|
|
1220 Set_Ekind (Any_Array, E_Array_Type);
|
|
|
1221 Set_Scope (Any_Array, Standard_Standard);
|
|
|
1222 Set_Etype (Any_Array, Any_Array);
|
|
|
1223 Set_Component_Type (Any_Array, Any_Character);
|
|
|
1224 Init_Size_Align (Any_Array);
|
|
|
1225 Make_Dummy_Index (Any_Array);
|
|
|
1226
|
|
|
1227 Any_Boolean := New_Standard_Entity ("a boolean type");
|
|
|
1228 Set_Ekind (Any_Boolean, E_Enumeration_Type);
|
|
|
1229 Set_Scope (Any_Boolean, Standard_Standard);
|
|
|
1230 Set_Etype (Any_Boolean, Standard_Boolean);
|
|
|
1231 Init_Esize (Any_Boolean, Standard_Character_Size);
|
|
|
1232 Init_RM_Size (Any_Boolean, 1);
|
|
|
1233 Set_Elem_Alignment (Any_Boolean);
|
|
|
1234 Set_Is_Unsigned_Type (Any_Boolean);
|
|
|
1235 Set_Scalar_Range (Any_Boolean, Scalar_Range (Standard_Boolean));
|
|
|
1236
|
|
|
1237 Any_Composite := New_Standard_Entity ("a composite type");
|
|
|
1238 Set_Ekind (Any_Composite, E_Array_Type);
|
|
|
1239 Set_Scope (Any_Composite, Standard_Standard);
|
|
|
1240 Set_Etype (Any_Composite, Any_Composite);
|
|
|
1241 Set_Component_Size (Any_Composite, Uint_0);
|
|
|
1242 Set_Component_Type (Any_Composite, Standard_Integer);
|
|
|
1243 Init_Size_Align (Any_Composite);
|
|
|
1244
|
|
|
1245 Any_Discrete := New_Standard_Entity ("a discrete type");
|
|
|
1246 Set_Ekind (Any_Discrete, E_Signed_Integer_Type);
|
|
|
1247 Set_Scope (Any_Discrete, Standard_Standard);
|
|
|
1248 Set_Etype (Any_Discrete, Any_Discrete);
|
|
|
1249 Init_Size (Any_Discrete, Standard_Integer_Size);
|
|
|
1250 Set_Elem_Alignment (Any_Discrete);
|
|
|
1251
|
|
|
1252 Any_Fixed := New_Standard_Entity ("a fixed-point type");
|
|
|
1253 Set_Ekind (Any_Fixed, E_Ordinary_Fixed_Point_Type);
|
|
|
1254 Set_Scope (Any_Fixed, Standard_Standard);
|
|
|
1255 Set_Etype (Any_Fixed, Any_Fixed);
|
|
|
1256 Init_Size (Any_Fixed, Standard_Integer_Size);
|
|
|
1257 Set_Elem_Alignment (Any_Fixed);
|
|
|
1258
|
|
|
1259 Any_Integer := New_Standard_Entity ("an integer type");
|
|
|
1260 Set_Ekind (Any_Integer, E_Signed_Integer_Type);
|
|
|
1261 Set_Scope (Any_Integer, Standard_Standard);
|
|
|
1262 Set_Etype (Any_Integer, Standard_Long_Long_Integer);
|
|
|
1263 Init_Size (Any_Integer, Standard_Long_Long_Integer_Size);
|
|
|
1264 Set_Elem_Alignment (Any_Integer);
|
|
|
1265
|
|
|
1266 Set_Integer_Bounds
|
|
|
1267 (Any_Integer,
|
|
|
1268 Typ => Base_Type (Standard_Integer),
|
|
|
1269 Lb => Uint_0,
|
|
|
1270 Hb => Intval (High_Bound (Scalar_Range (Standard_Integer))));
|
|
|
1271
|
|
|
1272 Any_Modular := New_Standard_Entity ("a modular type");
|
|
|
1273 Set_Ekind (Any_Modular, E_Modular_Integer_Type);
|
|
|
1274 Set_Scope (Any_Modular, Standard_Standard);
|
|
|
1275 Set_Etype (Any_Modular, Standard_Long_Long_Integer);
|
|
|
1276 Init_Size (Any_Modular, Standard_Long_Long_Integer_Size);
|
|
|
1277 Set_Elem_Alignment (Any_Modular);
|
|
|
1278 Set_Is_Unsigned_Type (Any_Modular);
|
|
|
1279
|
|
|
1280 Any_Numeric := New_Standard_Entity ("a numeric type");
|
|
|
1281 Set_Ekind (Any_Numeric, E_Signed_Integer_Type);
|
|
|
1282 Set_Scope (Any_Numeric, Standard_Standard);
|
|
|
1283 Set_Etype (Any_Numeric, Standard_Long_Long_Integer);
|
|
|
1284 Init_Size (Any_Numeric, Standard_Long_Long_Integer_Size);
|
|
|
1285 Set_Elem_Alignment (Any_Numeric);
|
|
|
1286
|
|
|
1287 Any_Real := New_Standard_Entity ("a real type");
|
|
|
1288 Set_Ekind (Any_Real, E_Floating_Point_Type);
|
|
|
1289 Set_Scope (Any_Real, Standard_Standard);
|
|
|
1290 Set_Etype (Any_Real, Standard_Long_Long_Float);
|
|
|
1291 Init_Size (Any_Real,
|
|
|
1292 UI_To_Int (Esize (Standard_Long_Long_Float)));
|
|
|
1293 Set_Elem_Alignment (Any_Real);
|
|
|
1294
|
|
|
1295 Any_Scalar := New_Standard_Entity ("a scalar type");
|
|
|
1296 Set_Ekind (Any_Scalar, E_Signed_Integer_Type);
|
|
|
1297 Set_Scope (Any_Scalar, Standard_Standard);
|
|
|
1298 Set_Etype (Any_Scalar, Any_Scalar);
|
|
|
1299 Init_Size (Any_Scalar, Standard_Integer_Size);
|
|
|
1300 Set_Elem_Alignment (Any_Scalar);
|
|
|
1301
|
|
|
1302 Any_String := New_Standard_Entity ("a string type");
|
|
|
1303 Set_Ekind (Any_String, E_Array_Type);
|
|
|
1304 Set_Scope (Any_String, Standard_Standard);
|
|
|
1305 Set_Etype (Any_String, Any_String);
|
|
|
1306 Set_Component_Type (Any_String, Any_Character);
|
|
|
1307 Init_Size_Align (Any_String);
|
|
|
1308 Make_Dummy_Index (Any_String);
|
|
|
1309
|
|
|
1310 Raise_Type := New_Standard_Entity ("raise type");
|
|
|
1311 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1312 Set_Defining_Identifier (Decl, Raise_Type);
|
|
|
1313 Set_Scope (Raise_Type, Standard_Standard);
|
|
|
1314 Build_Signed_Integer_Type (Raise_Type, Standard_Integer_Size);
|
|
|
1315
|
|
|
1316 Standard_Integer_8 := New_Standard_Entity ("integer_8");
|
|
|
1317 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1318 Set_Defining_Identifier (Decl, Standard_Integer_8);
|
|
|
1319 Set_Scope (Standard_Integer_8, Standard_Standard);
|
|
|
1320 Build_Signed_Integer_Type (Standard_Integer_8, 8);
|
|
|
1321
|
|
|
1322 Standard_Integer_16 := New_Standard_Entity ("integer_16");
|
|
|
1323 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1324 Set_Defining_Identifier (Decl, Standard_Integer_16);
|
|
|
1325 Set_Scope (Standard_Integer_16, Standard_Standard);
|
|
|
1326 Build_Signed_Integer_Type (Standard_Integer_16, 16);
|
|
|
1327
|
|
|
1328 Standard_Integer_32 := New_Standard_Entity ("integer_32");
|
|
|
1329 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1330 Set_Defining_Identifier (Decl, Standard_Integer_32);
|
|
|
1331 Set_Scope (Standard_Integer_32, Standard_Standard);
|
|
|
1332 Build_Signed_Integer_Type (Standard_Integer_32, 32);
|
|
|
1333
|
|
|
1334 Standard_Integer_64 := New_Standard_Entity ("integer_64");
|
|
|
1335 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1336 Set_Defining_Identifier (Decl, Standard_Integer_64);
|
|
|
1337 Set_Scope (Standard_Integer_64, Standard_Standard);
|
|
|
1338 Build_Signed_Integer_Type (Standard_Integer_64, 64);
|
|
|
1339
|
|
|
1340 -- Standard_*_Unsigned subtypes are not user visible, but they are
|
|
|
1341 -- used internally. They are unsigned types with the same length as
|
|
|
1342 -- the correspondingly named signed integer types.
|
|
|
1343
|
|
|
1344 Standard_Short_Short_Unsigned := New_Standard_Entity;
|
|
|
1345 Build_Unsigned_Integer_Type
|
|
|
1346 (Standard_Short_Short_Unsigned,
|
|
|
1347 Standard_Short_Short_Integer_Size,
|
|
|
1348 "short_short_unsigned");
|
|
|
1349
|
|
|
1350 Standard_Short_Unsigned := New_Standard_Entity;
|
|
|
1351 Build_Unsigned_Integer_Type
|
|
|
1352 (Standard_Short_Unsigned,
|
|
|
1353 Standard_Short_Integer_Size,
|
|
|
1354 "short_unsigned");
|
|
|
1355
|
|
|
1356 Standard_Unsigned := New_Standard_Entity;
|
|
|
1357 Build_Unsigned_Integer_Type
|
|
|
1358 (Standard_Unsigned,
|
|
|
1359 Standard_Integer_Size,
|
|
|
1360 "unsigned");
|
|
|
1361
|
|
|
1362 Standard_Long_Unsigned := New_Standard_Entity;
|
|
|
1363 Build_Unsigned_Integer_Type
|
|
|
1364 (Standard_Long_Unsigned,
|
|
|
1365 Standard_Long_Integer_Size,
|
|
|
1366 "long_unsigned");
|
|
|
1367
|
|
|
1368 Standard_Long_Long_Unsigned := New_Standard_Entity;
|
|
|
1369 Build_Unsigned_Integer_Type
|
|
|
1370 (Standard_Long_Long_Unsigned,
|
|
|
1371 Standard_Long_Long_Integer_Size,
|
|
|
1372 "long_long_unsigned");
|
|
|
1373
|
|
|
1374 -- Standard_Unsigned_64 is not user visible, but is used internally. It
|
|
|
1375 -- is an unsigned type mod 2**64, 64-bits unsigned, size is 64.
|
|
|
1376
|
|
|
1377 Standard_Unsigned_64 := New_Standard_Entity;
|
|
|
1378 Build_Unsigned_Integer_Type (Standard_Unsigned_64, 64, "unsigned_64");
|
|
|
1379
|
|
|
1380 -- Note: universal integer and universal real are constructed as fully
|
|
|
1381 -- formed signed numeric types, with parameters corresponding to the
|
|
|
1382 -- longest runtime types (Long_Long_Integer and Long_Long_Float). This
|
|
|
1383 -- allows Gigi to properly process references to universal types that
|
|
|
1384 -- are not folded at compile time.
|
|
|
1385
|
|
|
1386 Universal_Integer := New_Standard_Entity;
|
|
|
1387 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1388 Set_Defining_Identifier (Decl, Universal_Integer);
|
|
|
1389 Make_Name (Universal_Integer, "universal_integer");
|
|
|
1390 Set_Scope (Universal_Integer, Standard_Standard);
|
|
|
1391 Build_Signed_Integer_Type
|
|
|
1392 (Universal_Integer, Standard_Long_Long_Integer_Size);
|
|
|
1393
|
|
|
1394 Universal_Real := New_Standard_Entity;
|
|
|
1395 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1396 Set_Defining_Identifier (Decl, Universal_Real);
|
|
|
1397 Make_Name (Universal_Real, "universal_real");
|
|
|
1398 Set_Scope (Universal_Real, Standard_Standard);
|
|
|
1399 Copy_Float_Type (Universal_Real, Standard_Long_Long_Float);
|
|
|
1400
|
|
|
1401 -- Note: universal fixed, unlike universal integer and universal real,
|
|
|
1402 -- is never used at runtime, so it does not need to have bounds set.
|
|
|
1403
|
|
|
1404 Universal_Fixed := New_Standard_Entity;
|
|
|
1405 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1406 Set_Defining_Identifier (Decl, Universal_Fixed);
|
|
|
1407 Make_Name (Universal_Fixed, "universal_fixed");
|
|
|
1408 Set_Ekind (Universal_Fixed, E_Ordinary_Fixed_Point_Type);
|
|
|
1409 Set_Etype (Universal_Fixed, Universal_Fixed);
|
|
|
1410 Set_Scope (Universal_Fixed, Standard_Standard);
|
|
|
1411 Init_Size (Universal_Fixed, Standard_Long_Long_Integer_Size);
|
|
|
1412 Set_Elem_Alignment (Universal_Fixed);
|
|
|
1413 Set_Size_Known_At_Compile_Time
|
|
|
1414 (Universal_Fixed);
|
|
|
1415
|
|
|
1416 -- Create type declaration for Duration, using a 64-bit size. The
|
|
|
1417 -- delta and size values depend on the mode set in system.ads.
|
|
|
1418
|
|
|
1419 Build_Duration : declare
|
|
|
1420 Dlo : Uint;
|
|
|
1421 Dhi : Uint;
|
|
|
1422 Delta_Val : Ureal;
|
|
|
1423
|
|
|
1424 begin
|
|
|
1425 -- In 32 bit mode, the size is 32 bits, and the delta and
|
|
|
1426 -- small values are set to 20 milliseconds (20.0*(10.0**(-3)).
|
|
|
1427
|
|
|
1428 if Duration_32_Bits_On_Target then
|
|
|
1429 Dlo := Intval (Type_Low_Bound (Standard_Integer_32));
|
|
|
1430 Dhi := Intval (Type_High_Bound (Standard_Integer_32));
|
|
|
1431 Delta_Val := UR_From_Components (UI_From_Int (20), Uint_3, 10);
|
|
|
1432
|
|
|
1433 -- In 64-bit mode, the size is 64-bits and the delta and
|
|
|
1434 -- small values are set to nanoseconds (1.0*(10.0**(-9)).
|
|
|
1435
|
|
|
1436 else
|
|
|
1437 Dlo := Intval (Type_Low_Bound (Standard_Integer_64));
|
|
|
1438 Dhi := Intval (Type_High_Bound (Standard_Integer_64));
|
|
|
1439 Delta_Val := UR_From_Components (Uint_1, Uint_9, 10);
|
|
|
1440 end if;
|
|
|
1441
|
|
|
1442 Tdef_Node := Make_Ordinary_Fixed_Point_Definition (Stloc,
|
|
|
1443 Delta_Expression => Make_Real_Literal (Stloc, Delta_Val),
|
|
|
1444 Real_Range_Specification =>
|
|
|
1445 Make_Real_Range_Specification (Stloc,
|
|
|
1446 Low_Bound => Make_Real_Literal (Stloc,
|
|
|
1447 Realval => Dlo * Delta_Val),
|
|
|
1448 High_Bound => Make_Real_Literal (Stloc,
|
|
|
1449 Realval => Dhi * Delta_Val)));
|
|
|
1450
|
|
|
1451 Set_Type_Definition (Parent (Standard_Duration), Tdef_Node);
|
|
|
1452
|
|
|
1453 Set_Ekind (Standard_Duration, E_Ordinary_Fixed_Point_Type);
|
|
|
1454 Set_Etype (Standard_Duration, Standard_Duration);
|
|
|
1455
|
|
|
1456 if Duration_32_Bits_On_Target then
|
|
|
1457 Init_Size (Standard_Duration, 32);
|
|
|
1458 else
|
|
|
1459 Init_Size (Standard_Duration, 64);
|
|
|
1460 end if;
|
|
|
1461
|
|
|
1462 Set_Elem_Alignment (Standard_Duration);
|
|
|
1463 Set_Delta_Value (Standard_Duration, Delta_Val);
|
|
|
1464 Set_Small_Value (Standard_Duration, Delta_Val);
|
|
|
1465 Set_Scalar_Range (Standard_Duration,
|
|
|
1466 Real_Range_Specification
|
|
|
1467 (Type_Definition (Parent (Standard_Duration))));
|
|
|
1468
|
|
|
1469 -- Normally it does not matter that nodes in package Standard are
|
|
|
1470 -- not marked as analyzed. The Scalar_Range of the fixed-point type
|
|
|
1471 -- Standard_Duration is an exception, because of the special test
|
|
|
1472 -- made in Freeze.Freeze_Fixed_Point_Type.
|
|
|
1473
|
|
|
1474 Set_Analyzed (Scalar_Range (Standard_Duration));
|
|
|
1475
|
|
|
1476 Set_Etype (Type_High_Bound (Standard_Duration), Standard_Duration);
|
|
|
1477 Set_Etype (Type_Low_Bound (Standard_Duration), Standard_Duration);
|
|
|
1478
|
|
|
1479 Set_Is_Static_Expression (Type_High_Bound (Standard_Duration));
|
|
|
1480 Set_Is_Static_Expression (Type_Low_Bound (Standard_Duration));
|
|
|
1481
|
|
|
1482 Set_Corresponding_Integer_Value
|
|
|
1483 (Type_High_Bound (Standard_Duration), Dhi);
|
|
|
1484
|
|
|
1485 Set_Corresponding_Integer_Value
|
|
|
1486 (Type_Low_Bound (Standard_Duration), Dlo);
|
|
|
1487
|
|
|
1488 Set_Size_Known_At_Compile_Time (Standard_Duration);
|
|
|
1489 end Build_Duration;
|
|
|
1490
|
|
|
1491 -- Build standard exception type. Note that the type name here is
|
|
|
1492 -- actually used in the generated code, so it must be set correctly.
|
|
|
1493 -- The type Standard_Exception_Type must be consistent with the type
|
|
|
1494 -- System.Standard_Library.Exception_Data, as the latter is what is
|
|
|
1495 -- known by the run-time. Components of the record are documented in
|
|
|
1496 -- the declaration in System.Standard_Library.
|
|
|
1497
|
|
|
1498 Standard_Exception_Type := New_Standard_Entity;
|
|
|
1499 Set_Ekind (Standard_Exception_Type, E_Record_Type);
|
|
|
1500 Set_Etype (Standard_Exception_Type, Standard_Exception_Type);
|
|
|
1501 Set_Scope (Standard_Exception_Type, Standard_Standard);
|
|
|
1502 Set_Stored_Constraint
|
|
|
1503 (Standard_Exception_Type, No_Elist);
|
|
|
1504 Init_Size_Align (Standard_Exception_Type);
|
|
|
1505 Set_Size_Known_At_Compile_Time
|
|
|
1506 (Standard_Exception_Type, True);
|
|
|
1507 Make_Name (Standard_Exception_Type, "exception");
|
|
|
1508
|
|
|
1509 Make_Component
|
|
|
1510 (Standard_Exception_Type, Standard_Boolean, "Not_Handled_By_Others");
|
|
|
1511 Make_Component
|
|
|
1512 (Standard_Exception_Type, Standard_Character, "Lang");
|
|
|
1513 Make_Component
|
|
|
1514 (Standard_Exception_Type, Standard_Natural, "Name_Length");
|
|
|
1515 Make_Component
|
|
|
1516 (Standard_Exception_Type, Standard_A_Char, "Full_Name");
|
|
|
1517 Make_Component
|
|
|
1518 (Standard_Exception_Type, Standard_A_Char, "HTable_Ptr");
|
|
|
1519 Make_Component
|
|
|
1520 (Standard_Exception_Type, Standard_A_Char, "Foreign_Data");
|
|
|
1521 Make_Component
|
|
|
1522 (Standard_Exception_Type, Standard_A_Char, "Raise_Hook");
|
|
|
1523
|
|
|
1524 -- Build tree for record declaration, for use by the back-end
|
|
|
1525
|
|
|
1526 declare
|
|
|
1527 Comp_List : List_Id;
|
|
|
1528 Comp : Entity_Id;
|
|
|
1529
|
|
|
1530 begin
|
|
|
1531 Comp := First_Entity (Standard_Exception_Type);
|
|
|
1532 Comp_List := New_List;
|
|
|
1533 while Present (Comp) loop
|
|
|
1534 Append (
|
|
|
1535 Make_Component_Declaration (Stloc,
|
|
|
1536 Defining_Identifier => Comp,
|
|
|
1537 Component_Definition =>
|
|
|
1538 Make_Component_Definition (Stloc,
|
|
|
1539 Aliased_Present => False,
|
|
|
1540 Subtype_Indication => New_Occurrence_Of (Etype (Comp),
|
|
|
1541 Stloc))),
|
|
|
1542 Comp_List);
|
|
|
1543
|
|
|
1544 Next_Entity (Comp);
|
|
|
1545 end loop;
|
|
|
1546
|
|
|
1547 Decl := Make_Full_Type_Declaration (Stloc,
|
|
|
1548 Defining_Identifier => Standard_Exception_Type,
|
|
|
1549 Type_Definition =>
|
|
|
1550 Make_Record_Definition (Stloc,
|
|
|
1551 End_Label => Empty,
|
|
|
1552 Component_List =>
|
|
|
1553 Make_Component_List (Stloc,
|
|
|
1554 Component_Items => Comp_List)));
|
|
|
1555 end;
|
|
|
1556
|
|
|
1557 Append (Decl, Decl_S);
|
|
|
1558
|
|
|
1559 Layout_Type (Standard_Exception_Type);
|
|
|
1560
|
|
|
1561 -- Create declarations of standard exceptions
|
|
|
1562
|
|
|
1563 Build_Exception (S_Constraint_Error);
|
|
|
1564 Build_Exception (S_Program_Error);
|
|
|
1565 Build_Exception (S_Storage_Error);
|
|
|
1566 Build_Exception (S_Tasking_Error);
|
|
|
1567
|
|
|
1568 -- Numeric_Error is a normal exception in Ada 83, but in Ada 95
|
|
|
1569 -- it is a renaming of Constraint_Error. Is this test too early???
|
|
|
1570
|
|
|
1571 if Ada_Version = Ada_83 then
|
|
|
1572 Build_Exception (S_Numeric_Error);
|
|
|
1573
|
|
|
1574 else
|
|
|
1575 Decl := New_Node (N_Exception_Renaming_Declaration, Stloc);
|
|
|
1576 E_Id := Standard_Entity (S_Numeric_Error);
|
|
|
1577
|
|
|
1578 Set_Ekind (E_Id, E_Exception);
|
|
|
1579 Set_Etype (E_Id, Standard_Exception_Type);
|
|
|
1580 Set_Is_Public (E_Id);
|
|
|
1581 Set_Renamed_Entity (E_Id, Standard_Entity (S_Constraint_Error));
|
|
|
1582
|
|
|
1583 Set_Defining_Identifier (Decl, E_Id);
|
|
|
1584 Append (Decl, Decl_S);
|
|
|
1585
|
|
|
1586 Ident_Node := New_Node (N_Identifier, Stloc);
|
|
|
1587 Set_Chars (Ident_Node, Chars (Standard_Entity (S_Constraint_Error)));
|
|
|
1588 Set_Entity (Ident_Node, Standard_Entity (S_Constraint_Error));
|
|
|
1589 Set_Name (Decl, Ident_Node);
|
|
|
1590 end if;
|
|
|
1591
|
|
|
1592 -- Abort_Signal is an entity that does not get made visible
|
|
|
1593
|
|
|
1594 Abort_Signal := New_Standard_Entity;
|
|
|
1595 Set_Chars (Abort_Signal, Name_uAbort_Signal);
|
|
|
1596 Set_Ekind (Abort_Signal, E_Exception);
|
|
|
1597 Set_Etype (Abort_Signal, Standard_Exception_Type);
|
|
|
1598 Set_Scope (Abort_Signal, Standard_Standard);
|
|
|
1599 Set_Is_Public (Abort_Signal, True);
|
|
|
1600 Decl :=
|
|
|
1601 Make_Exception_Declaration (Stloc,
|
|
|
1602 Defining_Identifier => Abort_Signal);
|
|
|
1603
|
|
|
1604 -- Create defining identifiers for shift operator entities. Note
|
|
|
1605 -- that these entities are used only for marking shift operators
|
|
|
1606 -- generated internally, and hence need no structure, just a name
|
|
|
1607 -- and a unique identity.
|
|
|
1608
|
|
|
1609 Standard_Op_Rotate_Left := New_Standard_Entity;
|
|
|
1610 Set_Chars (Standard_Op_Rotate_Left, Name_Rotate_Left);
|
|
|
1611 Set_Ekind (Standard_Op_Rotate_Left, E_Operator);
|
|
|
1612
|
|
|
1613 Standard_Op_Rotate_Right := New_Standard_Entity;
|
|
|
1614 Set_Chars (Standard_Op_Rotate_Right, Name_Rotate_Right);
|
|
|
1615 Set_Ekind (Standard_Op_Rotate_Right, E_Operator);
|
|
|
1616
|
|
|
1617 Standard_Op_Shift_Left := New_Standard_Entity;
|
|
|
1618 Set_Chars (Standard_Op_Shift_Left, Name_Shift_Left);
|
|
|
1619 Set_Ekind (Standard_Op_Shift_Left, E_Operator);
|
|
|
1620
|
|
|
1621 Standard_Op_Shift_Right := New_Standard_Entity;
|
|
|
1622 Set_Chars (Standard_Op_Shift_Right, Name_Shift_Right);
|
|
|
1623 Set_Ekind (Standard_Op_Shift_Right, E_Operator);
|
|
|
1624
|
|
|
1625 Standard_Op_Shift_Right_Arithmetic := New_Standard_Entity;
|
|
|
1626 Set_Chars (Standard_Op_Shift_Right_Arithmetic,
|
|
|
1627 Name_Shift_Right_Arithmetic);
|
|
|
1628 Set_Ekind (Standard_Op_Shift_Right_Arithmetic,
|
|
|
1629 E_Operator);
|
|
|
1630
|
|
|
1631 -- Create standard operator declarations
|
|
|
1632
|
|
|
1633 Create_Operators;
|
|
|
1634
|
|
|
1635 -- Initialize visibility table with entities in Standard
|
|
|
1636
|
|
|
1637 for E in Standard_Entity_Type loop
|
|
|
1638 if Ekind (Standard_Entity (E)) /= E_Operator then
|
|
|
1639 Set_Name_Entity_Id
|
|
|
1640 (Chars (Standard_Entity (E)), Standard_Entity (E));
|
|
|
1641 Set_Homonym (Standard_Entity (E), Empty);
|
|
|
1642 end if;
|
|
|
1643
|
|
|
1644 if E not in S_ASCII_Names then
|
|
|
1645 Set_Scope (Standard_Entity (E), Standard_Standard);
|
|
|
1646 Set_Is_Immediately_Visible (Standard_Entity (E));
|
|
|
1647 end if;
|
|
|
1648 end loop;
|
|
|
1649
|
|
|
1650 -- The predefined package Standard itself does not have a scope;
|
|
|
1651 -- it is the only entity in the system not to have one, and this
|
|
|
1652 -- is what identifies the package to Gigi.
|
|
|
1653
|
|
|
1654 Set_Scope (Standard_Standard, Empty);
|
|
|
1655
|
|
|
1656 -- Set global variables indicating last Id values and version
|
|
|
1657
|
|
|
1658 Last_Standard_Node_Id := Last_Node_Id;
|
|
|
1659 Last_Standard_List_Id := Last_List_Id;
|
|
|
1660
|
|
|
1661 -- The Error node has an Etype of Any_Type to help error recovery
|
|
|
1662
|
|
|
1663 Set_Etype (Error, Any_Type);
|
|
|
1664
|
|
|
1665 -- Print representation of standard if switch set
|
|
|
1666
|
|
|
1667 if Opt.Print_Standard then
|
|
|
1668 Print_Standard;
|
|
|
1669 end if;
|
|
|
1670 end Create_Standard;
|
|
|
1671
|
|
|
1672 ------------------------------------
|
|
|
1673 -- Create_Unconstrained_Base_Type --
|
|
|
1674 ------------------------------------
|
|
|
1675
|
|
|
1676 procedure Create_Unconstrained_Base_Type
|
|
|
1677 (E : Entity_Id;
|
|
|
1678 K : Entity_Kind)
|
|
|
1679 is
|
|
|
1680 New_Ent : constant Entity_Id := New_Copy (E);
|
|
|
1681
|
|
|
1682 begin
|
|
|
1683 Set_Ekind (E, K);
|
|
|
1684 Set_Is_Constrained (E, True);
|
|
|
1685 Set_Is_First_Subtype (E, True);
|
|
|
1686 Set_Etype (E, New_Ent);
|
|
|
1687
|
|
|
1688 Append_Entity (New_Ent, Standard_Standard);
|
|
|
1689 Set_Is_Constrained (New_Ent, False);
|
|
|
1690 Set_Etype (New_Ent, New_Ent);
|
|
|
1691 Set_Is_Known_Valid (New_Ent, True);
|
|
|
1692
|
|
|
1693 if K = E_Signed_Integer_Subtype then
|
|
|
1694 Set_Etype (Low_Bound (Scalar_Range (E)), New_Ent);
|
|
|
1695 Set_Etype (High_Bound (Scalar_Range (E)), New_Ent);
|
|
|
1696 end if;
|
|
|
1697
|
|
|
1698 end Create_Unconstrained_Base_Type;
|
|
|
1699
|
|
|
1700 --------------------
|
|
|
1701 -- Identifier_For --
|
|
|
1702 --------------------
|
|
|
1703
|
|
|
1704 function Identifier_For (S : Standard_Entity_Type) return Node_Id is
|
|
|
1705 Ident_Node : Node_Id;
|
|
|
1706 begin
|
|
|
1707 Ident_Node := New_Node (N_Identifier, Stloc);
|
|
|
1708 Set_Chars (Ident_Node, Chars (Standard_Entity (S)));
|
|
|
1709 Set_Entity (Ident_Node, Standard_Entity (S));
|
|
|
1710 return Ident_Node;
|
|
|
1711 end Identifier_For;
|
|
|
1712
|
|
|
1713 --------------------
|
|
|
1714 -- Make_Component --
|
|
|
1715 --------------------
|
|
|
1716
|
|
|
1717 procedure Make_Component
|
|
|
1718 (Rec : Entity_Id;
|
|
|
1719 Typ : Entity_Id;
|
|
|
1720 Nam : String)
|
|
|
1721 is
|
|
|
1722 Id : constant Entity_Id := New_Standard_Entity;
|
|
|
1723
|
|
|
1724 begin
|
|
|
1725 Set_Ekind (Id, E_Component);
|
|
|
1726 Set_Etype (Id, Typ);
|
|
|
1727 Set_Scope (Id, Rec);
|
|
|
1728 Init_Component_Location (Id);
|
|
|
1729
|
|
|
1730 Set_Original_Record_Component (Id, Id);
|
|
|
1731 Make_Name (Id, Nam);
|
|
|
1732 Append_Entity (Id, Rec);
|
|
|
1733 end Make_Component;
|
|
|
1734
|
|
|
1735 -----------------
|
|
|
1736 -- Make_Formal --
|
|
|
1737 -----------------
|
|
|
1738
|
|
|
1739 function Make_Formal
|
|
|
1740 (Typ : Entity_Id;
|
|
|
1741 Formal_Name : String) return Entity_Id
|
|
|
1742 is
|
|
|
1743 Formal : Entity_Id;
|
|
|
1744
|
|
|
1745 begin
|
|
|
1746 Formal := New_Standard_Entity;
|
|
|
1747
|
|
|
1748 Set_Ekind (Formal, E_In_Parameter);
|
|
|
1749 Set_Mechanism (Formal, Default_Mechanism);
|
|
|
1750 Set_Scope (Formal, Standard_Standard);
|
|
|
1751 Set_Etype (Formal, Typ);
|
|
|
1752 Make_Name (Formal, Formal_Name);
|
|
|
1753
|
|
|
1754 return Formal;
|
|
|
1755 end Make_Formal;
|
|
|
1756
|
|
|
1757 ------------------
|
|
|
1758 -- Make_Integer --
|
|
|
1759 ------------------
|
|
|
1760
|
|
|
1761 function Make_Integer (V : Uint) return Node_Id is
|
|
|
1762 N : constant Node_Id := Make_Integer_Literal (Stloc, V);
|
|
|
1763 begin
|
|
|
1764 Set_Is_Static_Expression (N);
|
|
|
1765 return N;
|
|
|
1766 end Make_Integer;
|
|
|
1767
|
|
|
1768 ---------------
|
|
|
1769 -- Make_Name --
|
|
|
1770 ---------------
|
|
|
1771
|
|
|
1772 procedure Make_Name (Id : Entity_Id; Nam : String) is
|
|
|
1773 begin
|
|
|
1774 for J in 1 .. Nam'Length loop
|
|
|
1775 Name_Buffer (J) := Fold_Lower (Nam (Nam'First + (J - 1)));
|
|
|
1776 end loop;
|
|
|
1777
|
|
|
1778 Name_Len := Nam'Length;
|
|
|
1779 Set_Chars (Id, Name_Find);
|
|
|
1780 end Make_Name;
|
|
|
1781
|
|
|
1782 ------------------
|
|
|
1783 -- New_Operator --
|
|
|
1784 ------------------
|
|
|
1785
|
|
|
1786 function New_Operator (Op : Name_Id; Typ : Entity_Id) return Entity_Id is
|
|
|
1787 Ident_Node : Entity_Id;
|
|
|
1788
|
|
|
1789 begin
|
|
|
1790 Ident_Node := Make_Defining_Identifier (Stloc, Op);
|
|
|
1791
|
|
|
1792 Set_Is_Pure (Ident_Node, True);
|
|
|
1793 Set_Ekind (Ident_Node, E_Operator);
|
|
|
1794 Set_Etype (Ident_Node, Typ);
|
|
|
1795 Set_Scope (Ident_Node, Standard_Standard);
|
|
|
1796 Set_Homonym (Ident_Node, Get_Name_Entity_Id (Op));
|
|
|
1797 Set_Convention (Ident_Node, Convention_Intrinsic);
|
|
|
1798
|
|
|
1799 Set_Is_Immediately_Visible (Ident_Node, True);
|
|
|
1800 Set_Is_Intrinsic_Subprogram (Ident_Node, True);
|
|
|
1801
|
|
|
1802 Set_Name_Entity_Id (Op, Ident_Node);
|
|
|
1803 Append_Entity (Ident_Node, Standard_Standard);
|
|
|
1804 return Ident_Node;
|
|
|
1805 end New_Operator;
|
|
|
1806
|
|
|
1807 -------------------------
|
|
|
1808 -- New_Standard_Entity --
|
|
|
1809 -------------------------
|
|
|
1810
|
|
|
1811 function New_Standard_Entity
|
|
|
1812 (New_Node_Kind : Node_Kind := N_Defining_Identifier) return Entity_Id
|
|
|
1813 is
|
|
|
1814 E : constant Entity_Id := New_Entity (New_Node_Kind, Stloc);
|
|
|
1815
|
|
|
1816 begin
|
|
|
1817 -- All standard entities are Pure and Public
|
|
|
1818
|
|
|
1819 Set_Is_Pure (E);
|
|
|
1820 Set_Is_Public (E);
|
|
|
1821
|
|
|
1822 -- All standard entity names are analyzed manually, and are thus
|
|
|
1823 -- frozen as soon as they are created.
|
|
|
1824
|
|
|
1825 Set_Is_Frozen (E);
|
|
|
1826
|
|
|
1827 -- Set debug information required for all standard types
|
|
|
1828
|
|
|
1829 Set_Needs_Debug_Info (E);
|
|
|
1830
|
|
|
1831 -- All standard entities are built with fully qualified names, so
|
|
|
1832 -- set the flag to prevent an abortive attempt at requalification.
|
|
|
1833
|
|
|
1834 Set_Has_Qualified_Name (E);
|
|
|
1835
|
|
|
1836 -- Return newly created entity to be completed by caller
|
|
|
1837
|
|
|
1838 return E;
|
|
|
1839 end New_Standard_Entity;
|
|
|
1840
|
|
|
1841 function New_Standard_Entity (S : String) return Entity_Id is
|
|
|
1842 Ent : constant Entity_Id := New_Standard_Entity;
|
|
|
1843 begin
|
|
|
1844 Make_Name (Ent, S);
|
|
|
1845 return Ent;
|
|
|
1846 end New_Standard_Entity;
|
|
|
1847
|
|
|
1848 --------------------
|
|
|
1849 -- Print_Standard --
|
|
|
1850 --------------------
|
|
|
1851
|
|
|
1852 procedure Print_Standard is
|
|
|
1853
|
|
|
1854 procedure P (Item : String) renames Output.Write_Line;
|
|
|
1855 -- Short-hand, since we do a lot of line writes here
|
|
|
1856
|
|
|
1857 procedure P_Int_Range (Size : Pos);
|
|
|
1858 -- Prints the range of an integer based on its Size
|
|
|
1859
|
|
|
1860 procedure P_Float_Range (Id : Entity_Id);
|
|
|
1861 -- Prints the bounds range for the given float type entity
|
|
|
1862
|
|
|
1863 procedure P_Float_Type (Id : Entity_Id);
|
|
|
1864 -- Prints the type declaration of the given float type entity
|
|
|
1865
|
|
|
1866 procedure P_Mixed_Name (Id : Name_Id);
|
|
|
1867 -- Prints Id in mixed case
|
|
|
1868
|
|
|
1869 -------------------
|
|
|
1870 -- P_Float_Range --
|
|
|
1871 -------------------
|
|
|
1872
|
|
|
1873 procedure P_Float_Range (Id : Entity_Id) is
|
|
|
1874 begin
|
|
|
1875 Write_Str (" range ");
|
|
|
1876 UR_Write (Realval (Type_Low_Bound (Id)));
|
|
|
1877 Write_Str (" .. ");
|
|
|
1878 UR_Write (Realval (Type_High_Bound (Id)));
|
|
|
1879 Write_Str (";");
|
|
|
1880 Write_Eol;
|
|
|
1881 end P_Float_Range;
|
|
|
1882
|
|
|
1883 ------------------
|
|
|
1884 -- P_Float_Type --
|
|
|
1885 ------------------
|
|
|
1886
|
|
|
1887 procedure P_Float_Type (Id : Entity_Id) is
|
|
|
1888 begin
|
|
|
1889 Write_Str (" type ");
|
|
|
1890 P_Mixed_Name (Chars (Id));
|
|
|
1891 Write_Str (" is digits ");
|
|
|
1892 Write_Int (UI_To_Int (Digits_Value (Id)));
|
|
|
1893 Write_Eol;
|
|
|
1894 P_Float_Range (Id);
|
|
|
1895 Write_Str (" for ");
|
|
|
1896 P_Mixed_Name (Chars (Id));
|
|
|
1897 Write_Str ("'Size use ");
|
|
|
1898 Write_Int (UI_To_Int (RM_Size (Id)));
|
|
|
1899 Write_Line (";");
|
|
|
1900 Write_Eol;
|
|
|
1901 end P_Float_Type;
|
|
|
1902
|
|
|
1903 -----------------
|
|
|
1904 -- P_Int_Range --
|
|
|
1905 -----------------
|
|
|
1906
|
|
|
1907 procedure P_Int_Range (Size : Pos) is
|
|
|
1908 begin
|
|
|
1909 Write_Str (" is range -(2 **");
|
|
|
1910 Write_Int (Size - 1);
|
|
|
1911 Write_Str (")");
|
|
|
1912 Write_Str (" .. +(2 **");
|
|
|
1913 Write_Int (Size - 1);
|
|
|
1914 Write_Str (" - 1);");
|
|
|
1915 Write_Eol;
|
|
|
1916 end P_Int_Range;
|
|
|
1917
|
|
|
1918 ------------------
|
|
|
1919 -- P_Mixed_Name --
|
|
|
1920 ------------------
|
|
|
1921
|
|
|
1922 procedure P_Mixed_Name (Id : Name_Id) is
|
|
|
1923 begin
|
|
|
1924 Get_Name_String (Id);
|
|
|
1925
|
|
|
1926 for J in 1 .. Name_Len loop
|
|
|
1927 if J = 1 or else Name_Buffer (J - 1) = '_' then
|
|
|
1928 Name_Buffer (J) := Fold_Upper (Name_Buffer (J));
|
|
|
1929 end if;
|
|
|
1930 end loop;
|
|
|
1931
|
|
|
1932 Write_Str (Name_Buffer (1 .. Name_Len));
|
|
|
1933 end P_Mixed_Name;
|
|
|
1934
|
|
|
1935 -- Start of processing for Print_Standard
|
|
|
1936
|
|
|
1937 begin
|
|
|
1938 P ("-- Representation of package Standard");
|
|
|
1939 Write_Eol;
|
|
|
1940 P ("-- This is not accurate Ada, since new base types cannot be ");
|
|
|
1941 P ("-- created, but the listing shows the target dependent");
|
|
|
1942 P ("-- characteristics of the Standard types for this compiler");
|
|
|
1943 Write_Eol;
|
|
|
1944
|
|
|
1945 P ("package Standard is");
|
|
|
1946 P ("pragma Pure (Standard);");
|
|
|
1947 Write_Eol;
|
|
|
1948
|
|
|
1949 P (" type Boolean is (False, True);");
|
|
|
1950 P (" for Boolean'Size use 1;");
|
|
|
1951 P (" for Boolean use (False => 0, True => 1);");
|
|
|
1952 Write_Eol;
|
|
|
1953
|
|
|
1954 -- Integer types
|
|
|
1955
|
|
|
1956 Write_Str (" type Integer");
|
|
|
1957 P_Int_Range (Standard_Integer_Size);
|
|
|
1958 Write_Str (" for Integer'Size use ");
|
|
|
1959 Write_Int (Standard_Integer_Size);
|
|
|
1960 P (";");
|
|
|
1961 Write_Eol;
|
|
|
1962
|
|
|
1963 P (" subtype Natural is Integer range 0 .. Integer'Last;");
|
|
|
1964 P (" subtype Positive is Integer range 1 .. Integer'Last;");
|
|
|
1965 Write_Eol;
|
|
|
1966
|
|
|
1967 Write_Str (" type Short_Short_Integer");
|
|
|
1968 P_Int_Range (Standard_Short_Short_Integer_Size);
|
|
|
1969 Write_Str (" for Short_Short_Integer'Size use ");
|
|
|
1970 Write_Int (Standard_Short_Short_Integer_Size);
|
|
|
1971 P (";");
|
|
|
1972 Write_Eol;
|
|
|
1973
|
|
|
1974 Write_Str (" type Short_Integer");
|
|
|
1975 P_Int_Range (Standard_Short_Integer_Size);
|
|
|
1976 Write_Str (" for Short_Integer'Size use ");
|
|
|
1977 Write_Int (Standard_Short_Integer_Size);
|
|
|
1978 P (";");
|
|
|
1979 Write_Eol;
|
|
|
1980
|
|
|
1981 Write_Str (" type Long_Integer");
|
|
|
1982 P_Int_Range (Standard_Long_Integer_Size);
|
|
|
1983 Write_Str (" for Long_Integer'Size use ");
|
|
|
1984 Write_Int (Standard_Long_Integer_Size);
|
|
|
1985 P (";");
|
|
|
1986 Write_Eol;
|
|
|
1987
|
|
|
1988 Write_Str (" type Long_Long_Integer");
|
|
|
1989 P_Int_Range (Standard_Long_Long_Integer_Size);
|
|
|
1990 Write_Str (" for Long_Long_Integer'Size use ");
|
|
|
1991 Write_Int (Standard_Long_Long_Integer_Size);
|
|
|
1992 P (";");
|
|
|
1993 Write_Eol;
|
|
|
1994
|
|
|
1995 -- Floating point types
|
|
|
1996
|
|
|
1997 P_Float_Type (Standard_Short_Float);
|
|
|
1998 P_Float_Type (Standard_Float);
|
|
|
1999 P_Float_Type (Standard_Long_Float);
|
|
|
2000 P_Float_Type (Standard_Long_Long_Float);
|
|
|
2001
|
|
|
2002 P (" type Character is (...)");
|
|
|
2003 Write_Str (" for Character'Size use ");
|
|
|
2004 Write_Int (Standard_Character_Size);
|
|
|
2005 P (";");
|
|
|
2006 P (" -- See RM A.1(35) for details of this type");
|
|
|
2007 Write_Eol;
|
|
|
2008
|
|
|
2009 P (" type Wide_Character is (...)");
|
|
|
2010 Write_Str (" for Wide_Character'Size use ");
|
|
|
2011 Write_Int (Standard_Wide_Character_Size);
|
|
|
2012 P (";");
|
|
|
2013 P (" -- See RM A.1(36) for details of this type");
|
|
|
2014 Write_Eol;
|
|
|
2015
|
|
|
2016 P (" type Wide_Wide_Character is (...)");
|
|
|
2017 Write_Str (" for Wide_Wide_Character'Size use ");
|
|
|
2018 Write_Int (Standard_Wide_Wide_Character_Size);
|
|
|
2019 P (";");
|
|
|
2020 P (" -- See RM A.1(36) for details of this type");
|
|
|
2021
|
|
|
2022 P (" type String is array (Positive range <>) of Character;");
|
|
|
2023 P (" pragma Pack (String);");
|
|
|
2024 Write_Eol;
|
|
|
2025
|
|
|
2026 P (" type Wide_String is array (Positive range <>)" &
|
|
|
2027 " of Wide_Character;");
|
|
|
2028 P (" pragma Pack (Wide_String);");
|
|
|
2029 Write_Eol;
|
|
|
2030
|
|
|
2031 P (" type Wide_Wide_String is array (Positive range <>)" &
|
|
|
2032 " of Wide_Wide_Character;");
|
|
|
2033 P (" pragma Pack (Wide_Wide_String);");
|
|
|
2034 Write_Eol;
|
|
|
2035
|
|
|
2036 -- We only have one representation each for 32-bit and 64-bit sizes,
|
|
|
2037 -- so select the right one based on Duration_32_Bits_On_Target.
|
|
|
2038
|
|
|
2039 if Duration_32_Bits_On_Target then
|
|
|
2040 P (" type Duration is delta 0.020");
|
|
|
2041 P (" range -((2 ** 31) * 0.020) ..");
|
|
|
2042 P (" +((2 ** 31 - 1) * 0.020);");
|
|
|
2043 P (" for Duration'Small use 0.020;");
|
|
|
2044
|
|
|
2045 else
|
|
|
2046 P (" type Duration is delta 0.000000001");
|
|
|
2047 P (" range -((2 ** 63) * 0.000000001) ..");
|
|
|
2048 P (" +((2 ** 63 - 1) * 0.000000001);");
|
|
|
2049 P (" for Duration'Small use 0.000000001;");
|
|
|
2050 end if;
|
|
|
2051
|
|
|
2052 Write_Eol;
|
|
|
2053
|
|
|
2054 P (" Constraint_Error : exception;");
|
|
|
2055 P (" Program_Error : exception;");
|
|
|
2056 P (" Storage_Error : exception;");
|
|
|
2057 P (" Tasking_Error : exception;");
|
|
|
2058 P (" Numeric_Error : exception renames Constraint_Error;");
|
|
|
2059 Write_Eol;
|
|
|
2060
|
|
|
2061 P ("end Standard;");
|
|
|
2062 end Print_Standard;
|
|
|
2063
|
|
|
2064 -------------------------
|
|
|
2065 -- Register_Float_Type --
|
|
|
2066 -------------------------
|
|
|
2067
|
|
|
2068 procedure Register_Float_Type
|
|
|
2069 (Name : String;
|
|
|
2070 Digs : Positive;
|
|
|
2071 Float_Rep : Float_Rep_Kind;
|
|
|
2072 Precision : Positive;
|
|
|
2073 Size : Positive;
|
|
|
2074 Alignment : Natural)
|
|
|
2075 is
|
|
|
2076 pragma Unreferenced (Precision);
|
|
|
2077 -- See Build_Float_Type for the rationale
|
|
|
2078
|
|
|
2079 Ent : constant Entity_Id := New_Standard_Entity;
|
|
|
2080
|
|
|
2081 begin
|
|
|
2082 Set_Defining_Identifier (New_Node (N_Full_Type_Declaration, Stloc), Ent);
|
|
|
2083 Make_Name (Ent, Name);
|
|
|
2084 Set_Scope (Ent, Standard_Standard);
|
|
|
2085 Build_Float_Type
|
|
|
2086 (Ent, Pos (Digs), Float_Rep, Int (Size), Int (Alignment / 8));
|
|
|
2087
|
|
|
2088 if No (Back_End_Float_Types) then
|
|
|
2089 Back_End_Float_Types := New_Elmt_List;
|
|
|
2090 end if;
|
|
|
2091
|
|
|
2092 Append_Elmt (Ent, Back_End_Float_Types);
|
|
|
2093 end Register_Float_Type;
|
|
|
2094
|
|
|
2095 ----------------------
|
|
|
2096 -- Set_Float_Bounds --
|
|
|
2097 ----------------------
|
|
|
2098
|
|
|
2099 procedure Set_Float_Bounds (Id : Entity_Id) is
|
|
|
2100 L : Node_Id;
|
|
|
2101 H : Node_Id;
|
|
|
2102 -- Low and high bounds of literal value
|
|
|
2103
|
|
|
2104 R : Node_Id;
|
|
|
2105 -- Range specification
|
|
|
2106
|
|
|
2107 Radix : constant Uint := Machine_Radix_Value (Id);
|
|
|
2108 Mantissa : constant Uint := Machine_Mantissa_Value (Id);
|
|
|
2109 Emax : constant Uint := Machine_Emax_Value (Id);
|
|
|
2110 Significand : constant Uint := Radix ** Mantissa - 1;
|
|
|
2111 Exponent : constant Uint := Emax - Mantissa;
|
|
|
2112
|
|
|
2113 begin
|
|
|
2114 H := Make_Float_Literal (Stloc, Radix, Significand, Exponent);
|
|
|
2115 L := Make_Float_Literal (Stloc, Radix, -Significand, Exponent);
|
|
|
2116
|
|
|
2117 Set_Etype (L, Id);
|
|
|
2118 Set_Is_Static_Expression (L);
|
|
|
2119
|
|
|
2120 Set_Etype (H, Id);
|
|
|
2121 Set_Is_Static_Expression (H);
|
|
|
2122
|
|
|
2123 R := New_Node (N_Range, Stloc);
|
|
|
2124 Set_Low_Bound (R, L);
|
|
|
2125 Set_High_Bound (R, H);
|
|
|
2126 Set_Includes_Infinities (R, True);
|
|
|
2127 Set_Scalar_Range (Id, R);
|
|
|
2128 Set_Etype (R, Id);
|
|
|
2129 Set_Parent (R, Id);
|
|
|
2130 end Set_Float_Bounds;
|
|
|
2131
|
|
|
2132 ------------------------
|
|
|
2133 -- Set_Integer_Bounds --
|
|
|
2134 ------------------------
|
|
|
2135
|
|
|
2136 procedure Set_Integer_Bounds
|
|
|
2137 (Id : Entity_Id;
|
|
|
2138 Typ : Entity_Id;
|
|
|
2139 Lb : Uint;
|
|
|
2140 Hb : Uint)
|
|
|
2141 is
|
|
|
2142 L : Node_Id;
|
|
|
2143 H : Node_Id;
|
|
|
2144 -- Low and high bounds of literal value
|
|
|
2145
|
|
|
2146 R : Node_Id;
|
|
|
2147 -- Range specification
|
|
|
2148
|
|
|
2149 begin
|
|
|
2150 L := Make_Integer (Lb);
|
|
|
2151 H := Make_Integer (Hb);
|
|
|
2152
|
|
|
2153 Set_Etype (L, Typ);
|
|
|
2154 Set_Etype (H, Typ);
|
|
|
2155
|
|
|
2156 R := New_Node (N_Range, Stloc);
|
|
|
2157 Set_Low_Bound (R, L);
|
|
|
2158 Set_High_Bound (R, H);
|
|
|
2159 Set_Scalar_Range (Id, R);
|
|
|
2160 Set_Etype (R, Typ);
|
|
|
2161 Set_Parent (R, Id);
|
|
|
2162 Set_Is_Unsigned_Type (Id, Lb >= 0);
|
|
|
2163 end Set_Integer_Bounds;
|
|
|
2164
|
|
|
2165 end CStand;
|
