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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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9 -- Copyright (C) 1992-2017, Free Software Foundation, Inc. --
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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;
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|
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);
|
|
|
720
|
|
|
721 Build_Signed_Integer_Type
|
|
|
722 (Standard_Short_Integer, Standard_Short_Integer_Size);
|
|
|
723 Set_Is_Implementation_Defined (Standard_Short_Integer);
|
|
|
724
|
|
|
725 Build_Signed_Integer_Type
|
|
|
726 (Standard_Integer, Standard_Integer_Size);
|
|
|
727
|
|
|
728 Build_Signed_Integer_Type
|
|
|
729 (Standard_Long_Integer, Standard_Long_Integer_Size);
|
|
|
730
|
|
|
731 Build_Signed_Integer_Type
|
|
|
732 (Standard_Long_Long_Integer, Standard_Long_Long_Integer_Size);
|
|
|
733 Set_Is_Implementation_Defined (Standard_Long_Long_Integer);
|
|
|
734
|
|
|
735 Create_Unconstrained_Base_Type
|
|
|
736 (Standard_Short_Short_Integer, E_Signed_Integer_Subtype);
|
|
|
737 Set_Is_Implementation_Defined (Standard_Short_Short_Integer);
|
|
|
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 Set_Is_Implementation_Defined (Standard_Short_Short_Integer);
|
|
|
751
|
|
|
752 Create_Float_Types;
|
|
|
753
|
|
|
754 -- Create type definition node for type Character. Note that we do not
|
|
|
755 -- set the Literals field, since type Character is handled with special
|
|
|
756 -- routine that do not need a literal list.
|
|
|
757
|
|
|
758 Tdef_Node := New_Node (N_Enumeration_Type_Definition, Stloc);
|
|
|
759 Set_Type_Definition (Parent (Standard_Character), Tdef_Node);
|
|
|
760
|
|
|
761 Set_Ekind (Standard_Character, E_Enumeration_Type);
|
|
|
762 Set_Etype (Standard_Character, Standard_Character);
|
|
|
763 Init_Esize (Standard_Character, Standard_Character_Size);
|
|
|
764 Init_RM_Size (Standard_Character, 8);
|
|
|
765 Set_Elem_Alignment (Standard_Character);
|
|
|
766
|
|
|
767 Set_Has_Pragma_Ordered (Standard_Character);
|
|
|
768 Set_Is_Unsigned_Type (Standard_Character);
|
|
|
769 Set_Is_Character_Type (Standard_Character);
|
|
|
770 Set_Is_Known_Valid (Standard_Character);
|
|
|
771 Set_Size_Known_At_Compile_Time (Standard_Character);
|
|
|
772
|
|
|
773 -- Create the bounds for type Character
|
|
|
774
|
|
|
775 R_Node := New_Node (N_Range, Stloc);
|
|
|
776
|
|
|
777 -- Low bound for type Character (Standard.Nul)
|
|
|
778
|
|
|
779 B_Node := New_Node (N_Character_Literal, Stloc);
|
|
|
780 Set_Is_Static_Expression (B_Node);
|
|
|
781 Set_Chars (B_Node, No_Name);
|
|
|
782 Set_Char_Literal_Value (B_Node, Uint_0);
|
|
|
783 Set_Entity (B_Node, Empty);
|
|
|
784 Set_Etype (B_Node, Standard_Character);
|
|
|
785 Set_Low_Bound (R_Node, B_Node);
|
|
|
786
|
|
|
787 -- High bound for type Character
|
|
|
788
|
|
|
789 B_Node := New_Node (N_Character_Literal, Stloc);
|
|
|
790 Set_Is_Static_Expression (B_Node);
|
|
|
791 Set_Chars (B_Node, No_Name);
|
|
|
792 Set_Char_Literal_Value (B_Node, UI_From_Int (16#FF#));
|
|
|
793 Set_Entity (B_Node, Empty);
|
|
|
794 Set_Etype (B_Node, Standard_Character);
|
|
|
795 Set_High_Bound (R_Node, B_Node);
|
|
|
796
|
|
|
797 Set_Scalar_Range (Standard_Character, R_Node);
|
|
|
798 Set_Etype (R_Node, Standard_Character);
|
|
|
799 Set_Parent (R_Node, Standard_Character);
|
|
|
800
|
|
|
801 -- Create type definition for type Wide_Character. Note that we do not
|
|
|
802 -- set the Literals field, since type Wide_Character is handled with
|
|
|
803 -- special routines that do not need a literal list.
|
|
|
804
|
|
|
805 Tdef_Node := New_Node (N_Enumeration_Type_Definition, Stloc);
|
|
|
806 Set_Type_Definition (Parent (Standard_Wide_Character), Tdef_Node);
|
|
|
807
|
|
|
808 Set_Ekind (Standard_Wide_Character, E_Enumeration_Type);
|
|
|
809 Set_Etype (Standard_Wide_Character, Standard_Wide_Character);
|
|
|
810 Init_Size (Standard_Wide_Character, Standard_Wide_Character_Size);
|
|
|
811
|
|
|
812 Set_Elem_Alignment (Standard_Wide_Character);
|
|
|
813 Set_Has_Pragma_Ordered (Standard_Wide_Character);
|
|
|
814 Set_Is_Unsigned_Type (Standard_Wide_Character);
|
|
|
815 Set_Is_Character_Type (Standard_Wide_Character);
|
|
|
816 Set_Is_Known_Valid (Standard_Wide_Character);
|
|
|
817 Set_Size_Known_At_Compile_Time (Standard_Wide_Character);
|
|
|
818
|
|
|
819 -- Create the bounds for type Wide_Character
|
|
|
820
|
|
|
821 R_Node := New_Node (N_Range, Stloc);
|
|
|
822
|
|
|
823 -- Low bound for type Wide_Character
|
|
|
824
|
|
|
825 B_Node := New_Node (N_Character_Literal, Stloc);
|
|
|
826 Set_Is_Static_Expression (B_Node);
|
|
|
827 Set_Chars (B_Node, No_Name); -- ???
|
|
|
828 Set_Char_Literal_Value (B_Node, Uint_0);
|
|
|
829 Set_Entity (B_Node, Empty);
|
|
|
830 Set_Etype (B_Node, Standard_Wide_Character);
|
|
|
831 Set_Low_Bound (R_Node, B_Node);
|
|
|
832
|
|
|
833 -- High bound for type Wide_Character
|
|
|
834
|
|
|
835 B_Node := New_Node (N_Character_Literal, Stloc);
|
|
|
836 Set_Is_Static_Expression (B_Node);
|
|
|
837 Set_Chars (B_Node, No_Name); -- ???
|
|
|
838 Set_Char_Literal_Value (B_Node, UI_From_Int (16#FFFF#));
|
|
|
839 Set_Entity (B_Node, Empty);
|
|
|
840 Set_Etype (B_Node, Standard_Wide_Character);
|
|
|
841 Set_High_Bound (R_Node, B_Node);
|
|
|
842
|
|
|
843 Set_Scalar_Range (Standard_Wide_Character, R_Node);
|
|
|
844 Set_Etype (R_Node, Standard_Wide_Character);
|
|
|
845 Set_Parent (R_Node, Standard_Wide_Character);
|
|
|
846
|
|
|
847 -- Create type definition for type Wide_Wide_Character. Note that we
|
|
|
848 -- do not set the Literals field, since type Wide_Wide_Character is
|
|
|
849 -- handled with special routines that do not need a literal list.
|
|
|
850
|
|
|
851 Tdef_Node := New_Node (N_Enumeration_Type_Definition, Stloc);
|
|
|
852 Set_Type_Definition (Parent (Standard_Wide_Wide_Character), Tdef_Node);
|
|
|
853
|
|
|
854 Set_Ekind (Standard_Wide_Wide_Character, E_Enumeration_Type);
|
|
|
855 Set_Etype (Standard_Wide_Wide_Character,
|
|
|
856 Standard_Wide_Wide_Character);
|
|
|
857 Init_Size (Standard_Wide_Wide_Character,
|
|
|
858 Standard_Wide_Wide_Character_Size);
|
|
|
859
|
|
|
860 Set_Elem_Alignment (Standard_Wide_Wide_Character);
|
|
|
861 Set_Has_Pragma_Ordered (Standard_Wide_Wide_Character);
|
|
|
862 Set_Is_Unsigned_Type (Standard_Wide_Wide_Character);
|
|
|
863 Set_Is_Character_Type (Standard_Wide_Wide_Character);
|
|
|
864 Set_Is_Known_Valid (Standard_Wide_Wide_Character);
|
|
|
865 Set_Size_Known_At_Compile_Time (Standard_Wide_Wide_Character);
|
|
|
866 Set_Is_Ada_2005_Only (Standard_Wide_Wide_Character);
|
|
|
867
|
|
|
868 -- Create the bounds for type Wide_Wide_Character
|
|
|
869
|
|
|
870 R_Node := New_Node (N_Range, Stloc);
|
|
|
871
|
|
|
872 -- Low bound for type Wide_Wide_Character
|
|
|
873
|
|
|
874 B_Node := New_Node (N_Character_Literal, Stloc);
|
|
|
875 Set_Is_Static_Expression (B_Node);
|
|
|
876 Set_Chars (B_Node, No_Name); -- ???
|
|
|
877 Set_Char_Literal_Value (B_Node, Uint_0);
|
|
|
878 Set_Entity (B_Node, Empty);
|
|
|
879 Set_Etype (B_Node, Standard_Wide_Wide_Character);
|
|
|
880 Set_Low_Bound (R_Node, B_Node);
|
|
|
881
|
|
|
882 -- High bound for type Wide_Wide_Character
|
|
|
883
|
|
|
884 B_Node := New_Node (N_Character_Literal, Stloc);
|
|
|
885 Set_Is_Static_Expression (B_Node);
|
|
|
886 Set_Chars (B_Node, No_Name); -- ???
|
|
|
887 Set_Char_Literal_Value (B_Node, UI_From_Int (16#7FFF_FFFF#));
|
|
|
888 Set_Entity (B_Node, Empty);
|
|
|
889 Set_Etype (B_Node, Standard_Wide_Wide_Character);
|
|
|
890 Set_High_Bound (R_Node, B_Node);
|
|
|
891
|
|
|
892 Set_Scalar_Range (Standard_Wide_Wide_Character, R_Node);
|
|
|
893 Set_Etype (R_Node, Standard_Wide_Wide_Character);
|
|
|
894 Set_Parent (R_Node, Standard_Wide_Wide_Character);
|
|
|
895
|
|
|
896 -- Create type definition node for type String
|
|
|
897
|
|
|
898 Tdef_Node := New_Node (N_Unconstrained_Array_Definition, Stloc);
|
|
|
899
|
|
|
900 declare
|
|
|
901 CompDef_Node : Node_Id;
|
|
|
902 begin
|
|
|
903 CompDef_Node := New_Node (N_Component_Definition, Stloc);
|
|
|
904 Set_Aliased_Present (CompDef_Node, False);
|
|
|
905 Set_Access_Definition (CompDef_Node, Empty);
|
|
|
906 Set_Subtype_Indication (CompDef_Node, Identifier_For (S_Character));
|
|
|
907 Set_Component_Definition (Tdef_Node, CompDef_Node);
|
|
|
908 end;
|
|
|
909
|
|
|
910 Set_Subtype_Marks (Tdef_Node, New_List);
|
|
|
911 Append (Identifier_For (S_Positive), Subtype_Marks (Tdef_Node));
|
|
|
912 Set_Type_Definition (Parent (Standard_String), Tdef_Node);
|
|
|
913
|
|
|
914 Set_Ekind (Standard_String, E_Array_Type);
|
|
|
915 Set_Etype (Standard_String, Standard_String);
|
|
|
916 Set_Component_Type (Standard_String, Standard_Character);
|
|
|
917 Set_Component_Size (Standard_String, Uint_8);
|
|
|
918 Init_Size_Align (Standard_String);
|
|
|
919 Set_Alignment (Standard_String, Uint_1);
|
|
|
920 Pack_String_Type (Standard_String);
|
|
|
921
|
|
|
922 -- On targets where a storage unit is larger than a byte (such as AAMP),
|
|
|
923 -- pragma Pack has a real effect on the representation of type String,
|
|
|
924 -- and the type must be marked as having a nonstandard representation.
|
|
|
925
|
|
|
926 if System_Storage_Unit > Uint_8 then
|
|
|
927 Set_Has_Non_Standard_Rep (Standard_String);
|
|
|
928 Set_Has_Pragma_Pack (Standard_String);
|
|
|
929 end if;
|
|
|
930
|
|
|
931 -- Set index type of String
|
|
|
932
|
|
|
933 E_Id :=
|
|
|
934 First (Subtype_Marks (Type_Definition (Parent (Standard_String))));
|
|
|
935 Set_First_Index (Standard_String, E_Id);
|
|
|
936 Set_Entity (E_Id, Standard_Positive);
|
|
|
937 Set_Etype (E_Id, Standard_Positive);
|
|
|
938
|
|
|
939 -- Create type definition node for type Wide_String
|
|
|
940
|
|
|
941 Tdef_Node := New_Node (N_Unconstrained_Array_Definition, Stloc);
|
|
|
942
|
|
|
943 declare
|
|
|
944 CompDef_Node : Node_Id;
|
|
|
945 begin
|
|
|
946 CompDef_Node := New_Node (N_Component_Definition, Stloc);
|
|
|
947 Set_Aliased_Present (CompDef_Node, False);
|
|
|
948 Set_Access_Definition (CompDef_Node, Empty);
|
|
|
949 Set_Subtype_Indication (CompDef_Node,
|
|
|
950 Identifier_For (S_Wide_Character));
|
|
|
951 Set_Component_Definition (Tdef_Node, CompDef_Node);
|
|
|
952 end;
|
|
|
953
|
|
|
954 Set_Subtype_Marks (Tdef_Node, New_List);
|
|
|
955 Append (Identifier_For (S_Positive), Subtype_Marks (Tdef_Node));
|
|
|
956 Set_Type_Definition (Parent (Standard_Wide_String), Tdef_Node);
|
|
|
957
|
|
|
958 Set_Ekind (Standard_Wide_String, E_Array_Type);
|
|
|
959 Set_Etype (Standard_Wide_String, Standard_Wide_String);
|
|
|
960 Set_Component_Type (Standard_Wide_String, Standard_Wide_Character);
|
|
|
961 Set_Component_Size (Standard_Wide_String, Uint_16);
|
|
|
962 Init_Size_Align (Standard_Wide_String);
|
|
|
963 Pack_String_Type (Standard_Wide_String);
|
|
|
964
|
|
|
965 -- Set index type of Wide_String
|
|
|
966
|
|
|
967 E_Id :=
|
|
|
968 First
|
|
|
969 (Subtype_Marks (Type_Definition (Parent (Standard_Wide_String))));
|
|
|
970 Set_First_Index (Standard_Wide_String, E_Id);
|
|
|
971 Set_Entity (E_Id, Standard_Positive);
|
|
|
972 Set_Etype (E_Id, Standard_Positive);
|
|
|
973
|
|
|
974 -- Create type definition node for type Wide_Wide_String
|
|
|
975
|
|
|
976 Tdef_Node := New_Node (N_Unconstrained_Array_Definition, Stloc);
|
|
|
977
|
|
|
978 declare
|
|
|
979 CompDef_Node : Node_Id;
|
|
|
980 begin
|
|
|
981 CompDef_Node := New_Node (N_Component_Definition, Stloc);
|
|
|
982 Set_Aliased_Present (CompDef_Node, False);
|
|
|
983 Set_Access_Definition (CompDef_Node, Empty);
|
|
|
984 Set_Subtype_Indication (CompDef_Node,
|
|
|
985 Identifier_For (S_Wide_Wide_Character));
|
|
|
986 Set_Component_Definition (Tdef_Node, CompDef_Node);
|
|
|
987 end;
|
|
|
988
|
|
|
989 Set_Subtype_Marks (Tdef_Node, New_List);
|
|
|
990 Append (Identifier_For (S_Positive), Subtype_Marks (Tdef_Node));
|
|
|
991 Set_Type_Definition (Parent (Standard_Wide_Wide_String), Tdef_Node);
|
|
|
992
|
|
|
993 Set_Ekind (Standard_Wide_Wide_String, E_Array_Type);
|
|
|
994 Set_Etype (Standard_Wide_Wide_String,
|
|
|
995 Standard_Wide_Wide_String);
|
|
|
996 Set_Component_Type (Standard_Wide_Wide_String,
|
|
|
997 Standard_Wide_Wide_Character);
|
|
|
998 Set_Component_Size (Standard_Wide_Wide_String, Uint_32);
|
|
|
999 Init_Size_Align (Standard_Wide_Wide_String);
|
|
|
1000 Set_Is_Ada_2005_Only (Standard_Wide_Wide_String);
|
|
|
1001 Pack_String_Type (Standard_Wide_Wide_String);
|
|
|
1002
|
|
|
1003 -- Set index type of Wide_Wide_String
|
|
|
1004
|
|
|
1005 E_Id :=
|
|
|
1006 First
|
|
|
1007 (Subtype_Marks
|
|
|
1008 (Type_Definition (Parent (Standard_Wide_Wide_String))));
|
|
|
1009 Set_First_Index (Standard_Wide_Wide_String, E_Id);
|
|
|
1010 Set_Entity (E_Id, Standard_Positive);
|
|
|
1011 Set_Etype (E_Id, Standard_Positive);
|
|
|
1012
|
|
|
1013 -- Setup entity for Natural
|
|
|
1014
|
|
|
1015 Set_Ekind (Standard_Natural, E_Signed_Integer_Subtype);
|
|
|
1016 Set_Etype (Standard_Natural, Base_Type (Standard_Integer));
|
|
|
1017 Init_Esize (Standard_Natural, Standard_Integer_Size);
|
|
|
1018 Init_RM_Size (Standard_Natural, Standard_Integer_Size - 1);
|
|
|
1019 Set_Elem_Alignment (Standard_Natural);
|
|
|
1020 Set_Size_Known_At_Compile_Time
|
|
|
1021 (Standard_Natural);
|
|
|
1022 Set_Integer_Bounds (Standard_Natural,
|
|
|
1023 Typ => Base_Type (Standard_Integer),
|
|
|
1024 Lb => Uint_0,
|
|
|
1025 Hb => Intval (High_Bound (Scalar_Range (Standard_Integer))));
|
|
|
1026 Set_Is_Constrained (Standard_Natural);
|
|
|
1027
|
|
|
1028 -- Setup entity for Positive
|
|
|
1029
|
|
|
1030 Set_Ekind (Standard_Positive, E_Signed_Integer_Subtype);
|
|
|
1031 Set_Etype (Standard_Positive, Base_Type (Standard_Integer));
|
|
|
1032 Init_Esize (Standard_Positive, Standard_Integer_Size);
|
|
|
1033 Init_RM_Size (Standard_Positive, Standard_Integer_Size - 1);
|
|
|
1034 Set_Elem_Alignment (Standard_Positive);
|
|
|
1035
|
|
|
1036 Set_Size_Known_At_Compile_Time (Standard_Positive);
|
|
|
1037
|
|
|
1038 Set_Integer_Bounds (Standard_Positive,
|
|
|
1039 Typ => Base_Type (Standard_Integer),
|
|
|
1040 Lb => Uint_1,
|
|
|
1041 Hb => Intval (High_Bound (Scalar_Range (Standard_Integer))));
|
|
|
1042 Set_Is_Constrained (Standard_Positive);
|
|
|
1043
|
|
|
1044 -- Create declaration for package ASCII
|
|
|
1045
|
|
|
1046 Decl := New_Node (N_Package_Declaration, Stloc);
|
|
|
1047 Append (Decl, Decl_S);
|
|
|
1048
|
|
|
1049 Pspec := New_Node (N_Package_Specification, Stloc);
|
|
|
1050 Set_Specification (Decl, Pspec);
|
|
|
1051
|
|
|
1052 Set_Defining_Unit_Name (Pspec, Standard_Entity (S_ASCII));
|
|
|
1053 Set_Ekind (Standard_Entity (S_ASCII), E_Package);
|
|
|
1054 Set_Visible_Declarations (Pspec, Decl_A);
|
|
|
1055
|
|
|
1056 -- Create control character definitions in package ASCII. Note that
|
|
|
1057 -- the character literal entries created here correspond to literal
|
|
|
1058 -- values that are impossible in the source, but can be represented
|
|
|
1059 -- internally with no difficulties.
|
|
|
1060
|
|
|
1061 Ccode := 16#00#;
|
|
|
1062
|
|
|
1063 for S in S_ASCII_Names loop
|
|
|
1064 Decl := New_Node (N_Object_Declaration, Staloc);
|
|
|
1065 Set_Constant_Present (Decl, True);
|
|
|
1066
|
|
|
1067 declare
|
|
|
1068 A_Char : constant Entity_Id := Standard_Entity (S);
|
|
|
1069 Expr_Decl : Node_Id;
|
|
|
1070
|
|
|
1071 begin
|
|
|
1072 Set_Sloc (A_Char, Staloc);
|
|
|
1073 Set_Ekind (A_Char, E_Constant);
|
|
|
1074 Set_Never_Set_In_Source (A_Char, True);
|
|
|
1075 Set_Is_True_Constant (A_Char, True);
|
|
|
1076 Set_Etype (A_Char, Standard_Character);
|
|
|
1077 Set_Scope (A_Char, Standard_Entity (S_ASCII));
|
|
|
1078 Set_Is_Immediately_Visible (A_Char, False);
|
|
|
1079 Set_Is_Public (A_Char, True);
|
|
|
1080 Set_Is_Known_Valid (A_Char, True);
|
|
|
1081
|
|
|
1082 Append_Entity (A_Char, Standard_Entity (S_ASCII));
|
|
|
1083 Set_Defining_Identifier (Decl, A_Char);
|
|
|
1084
|
|
|
1085 Set_Object_Definition (Decl, Identifier_For (S_Character));
|
|
|
1086 Expr_Decl := New_Node (N_Character_Literal, Staloc);
|
|
|
1087 Set_Expression (Decl, Expr_Decl);
|
|
|
1088
|
|
|
1089 Set_Is_Static_Expression (Expr_Decl);
|
|
|
1090 Set_Chars (Expr_Decl, No_Name);
|
|
|
1091 Set_Etype (Expr_Decl, Standard_Character);
|
|
|
1092 Set_Char_Literal_Value (Expr_Decl, UI_From_Int (Int (Ccode)));
|
|
|
1093 end;
|
|
|
1094
|
|
|
1095 Append (Decl, Decl_A);
|
|
|
1096
|
|
|
1097 -- Increment character code, dealing with non-contiguities
|
|
|
1098
|
|
|
1099 Ccode := Ccode + 1;
|
|
|
1100
|
|
|
1101 if Ccode = 16#20# then
|
|
|
1102 Ccode := 16#21#;
|
|
|
1103 elsif Ccode = 16#27# then
|
|
|
1104 Ccode := 16#3A#;
|
|
|
1105 elsif Ccode = 16#3C# then
|
|
|
1106 Ccode := 16#3F#;
|
|
|
1107 elsif Ccode = 16#41# then
|
|
|
1108 Ccode := 16#5B#;
|
|
|
1109 end if;
|
|
|
1110 end loop;
|
|
|
1111
|
|
|
1112 -- Create semantic phase entities
|
|
|
1113
|
|
|
1114 Standard_Void_Type := New_Standard_Entity;
|
|
|
1115 Set_Ekind (Standard_Void_Type, E_Void);
|
|
|
1116 Set_Etype (Standard_Void_Type, Standard_Void_Type);
|
|
|
1117 Set_Scope (Standard_Void_Type, Standard_Standard);
|
|
|
1118 Make_Name (Standard_Void_Type, "_void_type");
|
|
|
1119
|
|
|
1120 -- The type field of packages is set to void
|
|
|
1121
|
|
|
1122 Set_Etype (Standard_Standard, Standard_Void_Type);
|
|
|
1123 Set_Etype (Standard_ASCII, Standard_Void_Type);
|
|
|
1124
|
|
|
1125 -- Standard_A_String is actually used in generated code, so it has a
|
|
|
1126 -- type name that is reasonable, but does not overlap any Ada name.
|
|
|
1127
|
|
|
1128 Standard_A_String := New_Standard_Entity;
|
|
|
1129 Set_Ekind (Standard_A_String, E_Access_Type);
|
|
|
1130 Set_Scope (Standard_A_String, Standard_Standard);
|
|
|
1131 Set_Etype (Standard_A_String, Standard_A_String);
|
|
|
1132
|
|
|
1133 if Debug_Flag_6 then
|
|
|
1134 Init_Size (Standard_A_String, System_Address_Size);
|
|
|
1135 else
|
|
|
1136 Init_Size (Standard_A_String, System_Address_Size * 2);
|
|
|
1137 end if;
|
|
|
1138
|
|
|
1139 Init_Alignment (Standard_A_String);
|
|
|
1140
|
|
|
1141 Set_Directly_Designated_Type
|
|
|
1142 (Standard_A_String, Standard_String);
|
|
|
1143 Make_Name (Standard_A_String, "access_string");
|
|
|
1144
|
|
|
1145 Standard_A_Char := New_Standard_Entity;
|
|
|
1146 Set_Ekind (Standard_A_Char, E_Access_Type);
|
|
|
1147 Set_Scope (Standard_A_Char, Standard_Standard);
|
|
|
1148 Set_Etype (Standard_A_Char, Standard_A_String);
|
|
|
1149 Init_Size (Standard_A_Char, System_Address_Size);
|
|
|
1150 Set_Elem_Alignment (Standard_A_Char);
|
|
|
1151
|
|
|
1152 Set_Directly_Designated_Type (Standard_A_Char, Standard_Character);
|
|
|
1153 Make_Name (Standard_A_Char, "access_character");
|
|
|
1154
|
|
|
1155 -- Standard_Debug_Renaming_Type is used for the special objects created
|
|
|
1156 -- to encode the names occurring in renaming declarations for use by the
|
|
|
1157 -- debugger (see exp_dbug.adb). The type is a zero-sized subtype of
|
|
|
1158 -- Standard.Integer.
|
|
|
1159
|
|
|
1160 Standard_Debug_Renaming_Type := New_Standard_Entity;
|
|
|
1161
|
|
|
1162 Set_Ekind (Standard_Debug_Renaming_Type, E_Signed_Integer_Subtype);
|
|
|
1163 Set_Scope (Standard_Debug_Renaming_Type, Standard_Standard);
|
|
|
1164 Set_Etype (Standard_Debug_Renaming_Type, Base_Type (Standard_Integer));
|
|
|
1165 Init_Esize (Standard_Debug_Renaming_Type, 0);
|
|
|
1166 Init_RM_Size (Standard_Debug_Renaming_Type, 0);
|
|
|
1167 Set_Size_Known_At_Compile_Time (Standard_Debug_Renaming_Type);
|
|
|
1168 Set_Integer_Bounds (Standard_Debug_Renaming_Type,
|
|
|
1169 Typ => Base_Type (Standard_Debug_Renaming_Type),
|
|
|
1170 Lb => Uint_1,
|
|
|
1171 Hb => Uint_0);
|
|
|
1172 Set_Is_Constrained (Standard_Debug_Renaming_Type);
|
|
|
1173 Set_Has_Size_Clause (Standard_Debug_Renaming_Type);
|
|
|
1174
|
|
|
1175 Make_Name (Standard_Debug_Renaming_Type, "_renaming_type");
|
|
|
1176
|
|
|
1177 -- Note on type names. The type names for the following special types
|
|
|
1178 -- are constructed so that they will look reasonable should they ever
|
|
|
1179 -- appear in error messages etc, although in practice the use of the
|
|
|
1180 -- special insertion character } for types results in special handling
|
|
|
1181 -- of these type names in any case. The blanks in these names would
|
|
|
1182 -- trouble in Gigi, but that's OK here, since none of these types
|
|
|
1183 -- should ever get through to Gigi. Attributes of these types are
|
|
|
1184 -- filled out to minimize problems with cascaded errors (for example,
|
|
|
1185 -- Any_Integer is given reasonable and consistent type and size values)
|
|
|
1186
|
|
|
1187 Any_Type := New_Standard_Entity ("any type");
|
|
|
1188 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1189 Set_Defining_Identifier (Decl, Any_Type);
|
|
|
1190 Set_Scope (Any_Type, Standard_Standard);
|
|
|
1191 Build_Signed_Integer_Type (Any_Type, Standard_Integer_Size);
|
|
|
1192
|
|
|
1193 Any_Id := New_Standard_Entity ("any id");
|
|
|
1194 Set_Ekind (Any_Id, E_Variable);
|
|
|
1195 Set_Scope (Any_Id, Standard_Standard);
|
|
|
1196 Set_Etype (Any_Id, Any_Type);
|
|
|
1197 Init_Esize (Any_Id);
|
|
|
1198 Init_Alignment (Any_Id);
|
|
|
1199
|
|
|
1200 Any_Access := New_Standard_Entity ("an access type");
|
|
|
1201 Set_Ekind (Any_Access, E_Access_Type);
|
|
|
1202 Set_Scope (Any_Access, Standard_Standard);
|
|
|
1203 Set_Etype (Any_Access, Any_Access);
|
|
|
1204 Init_Size (Any_Access, System_Address_Size);
|
|
|
1205 Set_Elem_Alignment (Any_Access);
|
|
|
1206 Set_Directly_Designated_Type
|
|
|
1207 (Any_Access, Any_Type);
|
|
|
1208
|
|
|
1209 Any_Character := New_Standard_Entity ("a character type");
|
|
|
1210 Set_Ekind (Any_Character, E_Enumeration_Type);
|
|
|
1211 Set_Scope (Any_Character, Standard_Standard);
|
|
|
1212 Set_Etype (Any_Character, Any_Character);
|
|
|
1213 Set_Is_Unsigned_Type (Any_Character);
|
|
|
1214 Set_Is_Character_Type (Any_Character);
|
|
|
1215 Init_Esize (Any_Character, Standard_Character_Size);
|
|
|
1216 Init_RM_Size (Any_Character, 8);
|
|
|
1217 Set_Elem_Alignment (Any_Character);
|
|
|
1218 Set_Scalar_Range (Any_Character, Scalar_Range (Standard_Character));
|
|
|
1219
|
|
|
1220 Any_Array := New_Standard_Entity ("an array type");
|
|
|
1221 Set_Ekind (Any_Array, E_Array_Type);
|
|
|
1222 Set_Scope (Any_Array, Standard_Standard);
|
|
|
1223 Set_Etype (Any_Array, Any_Array);
|
|
|
1224 Set_Component_Type (Any_Array, Any_Character);
|
|
|
1225 Init_Size_Align (Any_Array);
|
|
|
1226 Make_Dummy_Index (Any_Array);
|
|
|
1227
|
|
|
1228 Any_Boolean := New_Standard_Entity ("a boolean type");
|
|
|
1229 Set_Ekind (Any_Boolean, E_Enumeration_Type);
|
|
|
1230 Set_Scope (Any_Boolean, Standard_Standard);
|
|
|
1231 Set_Etype (Any_Boolean, Standard_Boolean);
|
|
|
1232 Init_Esize (Any_Boolean, Standard_Character_Size);
|
|
|
1233 Init_RM_Size (Any_Boolean, 1);
|
|
|
1234 Set_Elem_Alignment (Any_Boolean);
|
|
|
1235 Set_Is_Unsigned_Type (Any_Boolean);
|
|
|
1236 Set_Scalar_Range (Any_Boolean, Scalar_Range (Standard_Boolean));
|
|
|
1237
|
|
|
1238 Any_Composite := New_Standard_Entity ("a composite type");
|
|
|
1239 Set_Ekind (Any_Composite, E_Array_Type);
|
|
|
1240 Set_Scope (Any_Composite, Standard_Standard);
|
|
|
1241 Set_Etype (Any_Composite, Any_Composite);
|
|
|
1242 Set_Component_Size (Any_Composite, Uint_0);
|
|
|
1243 Set_Component_Type (Any_Composite, Standard_Integer);
|
|
|
1244 Init_Size_Align (Any_Composite);
|
|
|
1245
|
|
|
1246 Any_Discrete := New_Standard_Entity ("a discrete type");
|
|
|
1247 Set_Ekind (Any_Discrete, E_Signed_Integer_Type);
|
|
|
1248 Set_Scope (Any_Discrete, Standard_Standard);
|
|
|
1249 Set_Etype (Any_Discrete, Any_Discrete);
|
|
|
1250 Init_Size (Any_Discrete, Standard_Integer_Size);
|
|
|
1251 Set_Elem_Alignment (Any_Discrete);
|
|
|
1252
|
|
|
1253 Any_Fixed := New_Standard_Entity ("a fixed-point type");
|
|
|
1254 Set_Ekind (Any_Fixed, E_Ordinary_Fixed_Point_Type);
|
|
|
1255 Set_Scope (Any_Fixed, Standard_Standard);
|
|
|
1256 Set_Etype (Any_Fixed, Any_Fixed);
|
|
|
1257 Init_Size (Any_Fixed, Standard_Integer_Size);
|
|
|
1258 Set_Elem_Alignment (Any_Fixed);
|
|
|
1259
|
|
|
1260 Any_Integer := New_Standard_Entity ("an integer type");
|
|
|
1261 Set_Ekind (Any_Integer, E_Signed_Integer_Type);
|
|
|
1262 Set_Scope (Any_Integer, Standard_Standard);
|
|
|
1263 Set_Etype (Any_Integer, Standard_Long_Long_Integer);
|
|
|
1264 Init_Size (Any_Integer, Standard_Long_Long_Integer_Size);
|
|
|
1265 Set_Elem_Alignment (Any_Integer);
|
|
|
1266
|
|
|
1267 Set_Integer_Bounds
|
|
|
1268 (Any_Integer,
|
|
|
1269 Typ => Base_Type (Standard_Integer),
|
|
|
1270 Lb => Uint_0,
|
|
|
1271 Hb => Intval (High_Bound (Scalar_Range (Standard_Integer))));
|
|
|
1272
|
|
|
1273 Any_Modular := New_Standard_Entity ("a modular type");
|
|
|
1274 Set_Ekind (Any_Modular, E_Modular_Integer_Type);
|
|
|
1275 Set_Scope (Any_Modular, Standard_Standard);
|
|
|
1276 Set_Etype (Any_Modular, Standard_Long_Long_Integer);
|
|
|
1277 Init_Size (Any_Modular, Standard_Long_Long_Integer_Size);
|
|
|
1278 Set_Elem_Alignment (Any_Modular);
|
|
|
1279 Set_Is_Unsigned_Type (Any_Modular);
|
|
|
1280
|
|
|
1281 Any_Numeric := New_Standard_Entity ("a numeric type");
|
|
|
1282 Set_Ekind (Any_Numeric, E_Signed_Integer_Type);
|
|
|
1283 Set_Scope (Any_Numeric, Standard_Standard);
|
|
|
1284 Set_Etype (Any_Numeric, Standard_Long_Long_Integer);
|
|
|
1285 Init_Size (Any_Numeric, Standard_Long_Long_Integer_Size);
|
|
|
1286 Set_Elem_Alignment (Any_Numeric);
|
|
|
1287
|
|
|
1288 Any_Real := New_Standard_Entity ("a real type");
|
|
|
1289 Set_Ekind (Any_Real, E_Floating_Point_Type);
|
|
|
1290 Set_Scope (Any_Real, Standard_Standard);
|
|
|
1291 Set_Etype (Any_Real, Standard_Long_Long_Float);
|
|
|
1292 Init_Size (Any_Real,
|
|
|
1293 UI_To_Int (Esize (Standard_Long_Long_Float)));
|
|
|
1294 Set_Elem_Alignment (Any_Real);
|
|
|
1295
|
|
|
1296 Any_Scalar := New_Standard_Entity ("a scalar type");
|
|
|
1297 Set_Ekind (Any_Scalar, E_Signed_Integer_Type);
|
|
|
1298 Set_Scope (Any_Scalar, Standard_Standard);
|
|
|
1299 Set_Etype (Any_Scalar, Any_Scalar);
|
|
|
1300 Init_Size (Any_Scalar, Standard_Integer_Size);
|
|
|
1301 Set_Elem_Alignment (Any_Scalar);
|
|
|
1302
|
|
|
1303 Any_String := New_Standard_Entity ("a string type");
|
|
|
1304 Set_Ekind (Any_String, E_Array_Type);
|
|
|
1305 Set_Scope (Any_String, Standard_Standard);
|
|
|
1306 Set_Etype (Any_String, Any_String);
|
|
|
1307 Set_Component_Type (Any_String, Any_Character);
|
|
|
1308 Init_Size_Align (Any_String);
|
|
|
1309 Make_Dummy_Index (Any_String);
|
|
|
1310
|
|
|
1311 Raise_Type := New_Standard_Entity ("raise type");
|
|
|
1312 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1313 Set_Defining_Identifier (Decl, Raise_Type);
|
|
|
1314 Set_Scope (Raise_Type, Standard_Standard);
|
|
|
1315 Build_Signed_Integer_Type (Raise_Type, Standard_Integer_Size);
|
|
|
1316
|
|
|
1317 Standard_Integer_8 := New_Standard_Entity ("integer_8");
|
|
|
1318 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1319 Set_Defining_Identifier (Decl, Standard_Integer_8);
|
|
|
1320 Set_Scope (Standard_Integer_8, Standard_Standard);
|
|
|
1321 Build_Signed_Integer_Type (Standard_Integer_8, 8);
|
|
|
1322
|
|
|
1323 Standard_Integer_16 := New_Standard_Entity ("integer_16");
|
|
|
1324 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1325 Set_Defining_Identifier (Decl, Standard_Integer_16);
|
|
|
1326 Set_Scope (Standard_Integer_16, Standard_Standard);
|
|
|
1327 Build_Signed_Integer_Type (Standard_Integer_16, 16);
|
|
|
1328
|
|
|
1329 Standard_Integer_32 := New_Standard_Entity ("integer_32");
|
|
|
1330 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1331 Set_Defining_Identifier (Decl, Standard_Integer_32);
|
|
|
1332 Set_Scope (Standard_Integer_32, Standard_Standard);
|
|
|
1333 Build_Signed_Integer_Type (Standard_Integer_32, 32);
|
|
|
1334
|
|
|
1335 Standard_Integer_64 := New_Standard_Entity ("integer_64");
|
|
|
1336 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1337 Set_Defining_Identifier (Decl, Standard_Integer_64);
|
|
|
1338 Set_Scope (Standard_Integer_64, Standard_Standard);
|
|
|
1339 Build_Signed_Integer_Type (Standard_Integer_64, 64);
|
|
|
1340
|
|
|
1341 -- Standard_*_Unsigned subtypes are not user visible, but they are
|
|
|
1342 -- used internally. They are unsigned types with the same length as
|
|
|
1343 -- the correspondingly named signed integer types.
|
|
|
1344
|
|
|
1345 Standard_Short_Short_Unsigned := New_Standard_Entity;
|
|
|
1346 Build_Unsigned_Integer_Type
|
|
|
1347 (Standard_Short_Short_Unsigned,
|
|
|
1348 Standard_Short_Short_Integer_Size,
|
|
|
1349 "short_short_unsigned");
|
|
|
1350
|
|
|
1351 Standard_Short_Unsigned := New_Standard_Entity;
|
|
|
1352 Build_Unsigned_Integer_Type
|
|
|
1353 (Standard_Short_Unsigned,
|
|
|
1354 Standard_Short_Integer_Size,
|
|
|
1355 "short_unsigned");
|
|
|
1356
|
|
|
1357 Standard_Unsigned := New_Standard_Entity;
|
|
|
1358 Build_Unsigned_Integer_Type
|
|
|
1359 (Standard_Unsigned,
|
|
|
1360 Standard_Integer_Size,
|
|
|
1361 "unsigned");
|
|
|
1362
|
|
|
1363 Standard_Long_Unsigned := New_Standard_Entity;
|
|
|
1364 Build_Unsigned_Integer_Type
|
|
|
1365 (Standard_Long_Unsigned,
|
|
|
1366 Standard_Long_Integer_Size,
|
|
|
1367 "long_unsigned");
|
|
|
1368
|
|
|
1369 Standard_Long_Long_Unsigned := New_Standard_Entity;
|
|
|
1370 Build_Unsigned_Integer_Type
|
|
|
1371 (Standard_Long_Long_Unsigned,
|
|
|
1372 Standard_Long_Long_Integer_Size,
|
|
|
1373 "long_long_unsigned");
|
|
|
1374
|
|
|
1375 -- Standard_Unsigned_64 is not user visible, but is used internally. It
|
|
|
1376 -- is an unsigned type mod 2**64, 64-bits unsigned, size is 64.
|
|
|
1377
|
|
|
1378 Standard_Unsigned_64 := New_Standard_Entity;
|
|
|
1379 Build_Unsigned_Integer_Type (Standard_Unsigned_64, 64, "unsigned_64");
|
|
|
1380
|
|
|
1381 -- Note: universal integer and universal real are constructed as fully
|
|
|
1382 -- formed signed numeric types, with parameters corresponding to the
|
|
|
1383 -- longest runtime types (Long_Long_Integer and Long_Long_Float). This
|
|
|
1384 -- allows Gigi to properly process references to universal types that
|
|
|
1385 -- are not folded at compile time.
|
|
|
1386
|
|
|
1387 Universal_Integer := New_Standard_Entity;
|
|
|
1388 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1389 Set_Defining_Identifier (Decl, Universal_Integer);
|
|
|
1390 Make_Name (Universal_Integer, "universal_integer");
|
|
|
1391 Set_Scope (Universal_Integer, Standard_Standard);
|
|
|
1392 Build_Signed_Integer_Type
|
|
|
1393 (Universal_Integer, Standard_Long_Long_Integer_Size);
|
|
|
1394
|
|
|
1395 Universal_Real := New_Standard_Entity;
|
|
|
1396 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1397 Set_Defining_Identifier (Decl, Universal_Real);
|
|
|
1398 Make_Name (Universal_Real, "universal_real");
|
|
|
1399 Set_Scope (Universal_Real, Standard_Standard);
|
|
|
1400 Copy_Float_Type (Universal_Real, Standard_Long_Long_Float);
|
|
|
1401
|
|
|
1402 -- Note: universal fixed, unlike universal integer and universal real,
|
|
|
1403 -- is never used at runtime, so it does not need to have bounds set.
|
|
|
1404
|
|
|
1405 Universal_Fixed := New_Standard_Entity;
|
|
|
1406 Decl := New_Node (N_Full_Type_Declaration, Stloc);
|
|
|
1407 Set_Defining_Identifier (Decl, Universal_Fixed);
|
|
|
1408 Make_Name (Universal_Fixed, "universal_fixed");
|
|
|
1409 Set_Ekind (Universal_Fixed, E_Ordinary_Fixed_Point_Type);
|
|
|
1410 Set_Etype (Universal_Fixed, Universal_Fixed);
|
|
|
1411 Set_Scope (Universal_Fixed, Standard_Standard);
|
|
|
1412 Init_Size (Universal_Fixed, Standard_Long_Long_Integer_Size);
|
|
|
1413 Set_Elem_Alignment (Universal_Fixed);
|
|
|
1414 Set_Size_Known_At_Compile_Time
|
|
|
1415 (Universal_Fixed);
|
|
|
1416
|
|
|
1417 -- Create type declaration for Duration, using a 64-bit size. The
|
|
|
1418 -- delta and size values depend on the mode set in system.ads.
|
|
|
1419
|
|
|
1420 Build_Duration : declare
|
|
|
1421 Dlo : Uint;
|
|
|
1422 Dhi : Uint;
|
|
|
1423 Delta_Val : Ureal;
|
|
|
1424
|
|
|
1425 begin
|
|
|
1426 -- In 32 bit mode, the size is 32 bits, and the delta and
|
|
|
1427 -- small values are set to 20 milliseconds (20.0*(10.0**(-3)).
|
|
|
1428
|
|
|
1429 if Duration_32_Bits_On_Target then
|
|
|
1430 Dlo := Intval (Type_Low_Bound (Standard_Integer_32));
|
|
|
1431 Dhi := Intval (Type_High_Bound (Standard_Integer_32));
|
|
|
1432 Delta_Val := UR_From_Components (UI_From_Int (20), Uint_3, 10);
|
|
|
1433
|
|
|
1434 -- In 64-bit mode, the size is 64-bits and the delta and
|
|
|
1435 -- small values are set to nanoseconds (1.0*(10.0**(-9)).
|
|
|
1436
|
|
|
1437 else
|
|
|
1438 Dlo := Intval (Type_Low_Bound (Standard_Integer_64));
|
|
|
1439 Dhi := Intval (Type_High_Bound (Standard_Integer_64));
|
|
|
1440 Delta_Val := UR_From_Components (Uint_1, Uint_9, 10);
|
|
|
1441 end if;
|
|
|
1442
|
|
|
1443 Tdef_Node := Make_Ordinary_Fixed_Point_Definition (Stloc,
|
|
|
1444 Delta_Expression => Make_Real_Literal (Stloc, Delta_Val),
|
|
|
1445 Real_Range_Specification =>
|
|
|
1446 Make_Real_Range_Specification (Stloc,
|
|
|
1447 Low_Bound => Make_Real_Literal (Stloc,
|
|
|
1448 Realval => Dlo * Delta_Val),
|
|
|
1449 High_Bound => Make_Real_Literal (Stloc,
|
|
|
1450 Realval => Dhi * Delta_Val)));
|
|
|
1451
|
|
|
1452 Set_Type_Definition (Parent (Standard_Duration), Tdef_Node);
|
|
|
1453
|
|
|
1454 Set_Ekind (Standard_Duration, E_Ordinary_Fixed_Point_Type);
|
|
|
1455 Set_Etype (Standard_Duration, Standard_Duration);
|
|
|
1456
|
|
|
1457 if Duration_32_Bits_On_Target then
|
|
|
1458 Init_Size (Standard_Duration, 32);
|
|
|
1459 else
|
|
|
1460 Init_Size (Standard_Duration, 64);
|
|
|
1461 end if;
|
|
|
1462
|
|
|
1463 Set_Elem_Alignment (Standard_Duration);
|
|
|
1464 Set_Delta_Value (Standard_Duration, Delta_Val);
|
|
|
1465 Set_Small_Value (Standard_Duration, Delta_Val);
|
|
|
1466 Set_Scalar_Range (Standard_Duration,
|
|
|
1467 Real_Range_Specification
|
|
|
1468 (Type_Definition (Parent (Standard_Duration))));
|
|
|
1469
|
|
|
1470 -- Normally it does not matter that nodes in package Standard are
|
|
|
1471 -- not marked as analyzed. The Scalar_Range of the fixed-point type
|
|
|
1472 -- Standard_Duration is an exception, because of the special test
|
|
|
1473 -- made in Freeze.Freeze_Fixed_Point_Type.
|
|
|
1474
|
|
|
1475 Set_Analyzed (Scalar_Range (Standard_Duration));
|
|
|
1476
|
|
|
1477 Set_Etype (Type_High_Bound (Standard_Duration), Standard_Duration);
|
|
|
1478 Set_Etype (Type_Low_Bound (Standard_Duration), Standard_Duration);
|
|
|
1479
|
|
|
1480 Set_Is_Static_Expression (Type_High_Bound (Standard_Duration));
|
|
|
1481 Set_Is_Static_Expression (Type_Low_Bound (Standard_Duration));
|
|
|
1482
|
|
|
1483 Set_Corresponding_Integer_Value
|
|
|
1484 (Type_High_Bound (Standard_Duration), Dhi);
|
|
|
1485
|
|
|
1486 Set_Corresponding_Integer_Value
|
|
|
1487 (Type_Low_Bound (Standard_Duration), Dlo);
|
|
|
1488
|
|
|
1489 Set_Size_Known_At_Compile_Time (Standard_Duration);
|
|
|
1490 end Build_Duration;
|
|
|
1491
|
|
|
1492 -- Build standard exception type. Note that the type name here is
|
|
|
1493 -- actually used in the generated code, so it must be set correctly.
|
|
|
1494 -- The type Standard_Exception_Type must be consistent with the type
|
|
|
1495 -- System.Standard_Library.Exception_Data, as the latter is what is
|
|
|
1496 -- known by the run-time. Components of the record are documented in
|
|
|
1497 -- the declaration in System.Standard_Library.
|
|
|
1498
|
|
|
1499 Standard_Exception_Type := New_Standard_Entity;
|
|
|
1500 Set_Ekind (Standard_Exception_Type, E_Record_Type);
|
|
|
1501 Set_Etype (Standard_Exception_Type, Standard_Exception_Type);
|
|
|
1502 Set_Scope (Standard_Exception_Type, Standard_Standard);
|
|
|
1503 Set_Stored_Constraint
|
|
|
1504 (Standard_Exception_Type, No_Elist);
|
|
|
1505 Init_Size_Align (Standard_Exception_Type);
|
|
|
1506 Set_Size_Known_At_Compile_Time
|
|
|
1507 (Standard_Exception_Type, True);
|
|
|
1508 Make_Name (Standard_Exception_Type, "exception");
|
|
|
1509
|
|
|
1510 Make_Component
|
|
|
1511 (Standard_Exception_Type, Standard_Boolean, "Not_Handled_By_Others");
|
|
|
1512 Make_Component
|
|
|
1513 (Standard_Exception_Type, Standard_Character, "Lang");
|
|
|
1514 Make_Component
|
|
|
1515 (Standard_Exception_Type, Standard_Natural, "Name_Length");
|
|
|
1516 Make_Component
|
|
|
1517 (Standard_Exception_Type, Standard_A_Char, "Full_Name");
|
|
|
1518 Make_Component
|
|
|
1519 (Standard_Exception_Type, Standard_A_Char, "HTable_Ptr");
|
|
|
1520 Make_Component
|
|
|
1521 (Standard_Exception_Type, Standard_A_Char, "Foreign_Data");
|
|
|
1522 Make_Component
|
|
|
1523 (Standard_Exception_Type, Standard_A_Char, "Raise_Hook");
|
|
|
1524
|
|
|
1525 -- Build tree for record declaration, for use by the back-end
|
|
|
1526
|
|
|
1527 declare
|
|
|
1528 Comp_List : List_Id;
|
|
|
1529 Comp : Entity_Id;
|
|
|
1530
|
|
|
1531 begin
|
|
|
1532 Comp := First_Entity (Standard_Exception_Type);
|
|
|
1533 Comp_List := New_List;
|
|
|
1534 while Present (Comp) loop
|
|
|
1535 Append (
|
|
|
1536 Make_Component_Declaration (Stloc,
|
|
|
1537 Defining_Identifier => Comp,
|
|
|
1538 Component_Definition =>
|
|
|
1539 Make_Component_Definition (Stloc,
|
|
|
1540 Aliased_Present => False,
|
|
|
1541 Subtype_Indication => New_Occurrence_Of (Etype (Comp),
|
|
|
1542 Stloc))),
|
|
|
1543 Comp_List);
|
|
|
1544
|
|
|
1545 Next_Entity (Comp);
|
|
|
1546 end loop;
|
|
|
1547
|
|
|
1548 Decl := Make_Full_Type_Declaration (Stloc,
|
|
|
1549 Defining_Identifier => Standard_Exception_Type,
|
|
|
1550 Type_Definition =>
|
|
|
1551 Make_Record_Definition (Stloc,
|
|
|
1552 End_Label => Empty,
|
|
|
1553 Component_List =>
|
|
|
1554 Make_Component_List (Stloc,
|
|
|
1555 Component_Items => Comp_List)));
|
|
|
1556 end;
|
|
|
1557
|
|
|
1558 Append (Decl, Decl_S);
|
|
|
1559
|
|
|
1560 Layout_Type (Standard_Exception_Type);
|
|
|
1561
|
|
|
1562 -- Create declarations of standard exceptions
|
|
|
1563
|
|
|
1564 Build_Exception (S_Constraint_Error);
|
|
|
1565 Build_Exception (S_Program_Error);
|
|
|
1566 Build_Exception (S_Storage_Error);
|
|
|
1567 Build_Exception (S_Tasking_Error);
|
|
|
1568
|
|
|
1569 -- Numeric_Error is a normal exception in Ada 83, but in Ada 95
|
|
|
1570 -- it is a renaming of Constraint_Error. Is this test too early???
|
|
|
1571
|
|
|
1572 if Ada_Version = Ada_83 then
|
|
|
1573 Build_Exception (S_Numeric_Error);
|
|
|
1574
|
|
|
1575 else
|
|
|
1576 Decl := New_Node (N_Exception_Renaming_Declaration, Stloc);
|
|
|
1577 E_Id := Standard_Entity (S_Numeric_Error);
|
|
|
1578
|
|
|
1579 Set_Ekind (E_Id, E_Exception);
|
|
|
1580 Set_Etype (E_Id, Standard_Exception_Type);
|
|
|
1581 Set_Is_Public (E_Id);
|
|
|
1582 Set_Renamed_Entity (E_Id, Standard_Entity (S_Constraint_Error));
|
|
|
1583
|
|
|
1584 Set_Defining_Identifier (Decl, E_Id);
|
|
|
1585 Append (Decl, Decl_S);
|
|
|
1586
|
|
|
1587 Ident_Node := New_Node (N_Identifier, Stloc);
|
|
|
1588 Set_Chars (Ident_Node, Chars (Standard_Entity (S_Constraint_Error)));
|
|
|
1589 Set_Entity (Ident_Node, Standard_Entity (S_Constraint_Error));
|
|
|
1590 Set_Name (Decl, Ident_Node);
|
|
|
1591 end if;
|
|
|
1592
|
|
|
1593 -- Abort_Signal is an entity that does not get made visible
|
|
|
1594
|
|
|
1595 Abort_Signal := New_Standard_Entity;
|
|
|
1596 Set_Chars (Abort_Signal, Name_uAbort_Signal);
|
|
|
1597 Set_Ekind (Abort_Signal, E_Exception);
|
|
|
1598 Set_Etype (Abort_Signal, Standard_Exception_Type);
|
|
|
1599 Set_Scope (Abort_Signal, Standard_Standard);
|
|
|
1600 Set_Is_Public (Abort_Signal, True);
|
|
|
1601 Decl :=
|
|
|
1602 Make_Exception_Declaration (Stloc,
|
|
|
1603 Defining_Identifier => Abort_Signal);
|
|
|
1604
|
|
|
1605 -- Create defining identifiers for shift operator entities. Note
|
|
|
1606 -- that these entities are used only for marking shift operators
|
|
|
1607 -- generated internally, and hence need no structure, just a name
|
|
|
1608 -- and a unique identity.
|
|
|
1609
|
|
|
1610 Standard_Op_Rotate_Left := New_Standard_Entity;
|
|
|
1611 Set_Chars (Standard_Op_Rotate_Left, Name_Rotate_Left);
|
|
|
1612 Set_Ekind (Standard_Op_Rotate_Left, E_Operator);
|
|
|
1613
|
|
|
1614 Standard_Op_Rotate_Right := New_Standard_Entity;
|
|
|
1615 Set_Chars (Standard_Op_Rotate_Right, Name_Rotate_Right);
|
|
|
1616 Set_Ekind (Standard_Op_Rotate_Right, E_Operator);
|
|
|
1617
|
|
|
1618 Standard_Op_Shift_Left := New_Standard_Entity;
|
|
|
1619 Set_Chars (Standard_Op_Shift_Left, Name_Shift_Left);
|
|
|
1620 Set_Ekind (Standard_Op_Shift_Left, E_Operator);
|
|
|
1621
|
|
|
1622 Standard_Op_Shift_Right := New_Standard_Entity;
|
|
|
1623 Set_Chars (Standard_Op_Shift_Right, Name_Shift_Right);
|
|
|
1624 Set_Ekind (Standard_Op_Shift_Right, E_Operator);
|
|
|
1625
|
|
|
1626 Standard_Op_Shift_Right_Arithmetic := New_Standard_Entity;
|
|
|
1627 Set_Chars (Standard_Op_Shift_Right_Arithmetic,
|
|
|
1628 Name_Shift_Right_Arithmetic);
|
|
|
1629 Set_Ekind (Standard_Op_Shift_Right_Arithmetic,
|
|
|
1630 E_Operator);
|
|
|
1631
|
|
|
1632 -- Create standard operator declarations
|
|
|
1633
|
|
|
1634 Create_Operators;
|
|
|
1635
|
|
|
1636 -- Initialize visibility table with entities in Standard
|
|
|
1637
|
|
|
1638 for E in Standard_Entity_Type loop
|
|
|
1639 if Ekind (Standard_Entity (E)) /= E_Operator then
|
|
|
1640 Set_Name_Entity_Id
|
|
|
1641 (Chars (Standard_Entity (E)), Standard_Entity (E));
|
|
|
1642 Set_Homonym (Standard_Entity (E), Empty);
|
|
|
1643 end if;
|
|
|
1644
|
|
|
1645 if E not in S_ASCII_Names then
|
|
|
1646 Set_Scope (Standard_Entity (E), Standard_Standard);
|
|
|
1647 Set_Is_Immediately_Visible (Standard_Entity (E));
|
|
|
1648 end if;
|
|
|
1649 end loop;
|
|
|
1650
|
|
|
1651 -- The predefined package Standard itself does not have a scope;
|
|
|
1652 -- it is the only entity in the system not to have one, and this
|
|
|
1653 -- is what identifies the package to Gigi.
|
|
|
1654
|
|
|
1655 Set_Scope (Standard_Standard, Empty);
|
|
|
1656
|
|
|
1657 -- Set global variables indicating last Id values and version
|
|
|
1658
|
|
|
1659 Last_Standard_Node_Id := Last_Node_Id;
|
|
|
1660 Last_Standard_List_Id := Last_List_Id;
|
|
|
1661
|
|
|
1662 -- The Error node has an Etype of Any_Type to help error recovery
|
|
|
1663
|
|
|
1664 Set_Etype (Error, Any_Type);
|
|
|
1665
|
|
|
1666 -- Print representation of standard if switch set
|
|
|
1667
|
|
|
1668 if Opt.Print_Standard then
|
|
|
1669 Print_Standard;
|
|
|
1670 end if;
|
|
|
1671 end Create_Standard;
|
|
|
1672
|
|
|
1673 ------------------------------------
|
|
|
1674 -- Create_Unconstrained_Base_Type --
|
|
|
1675 ------------------------------------
|
|
|
1676
|
|
|
1677 procedure Create_Unconstrained_Base_Type
|
|
|
1678 (E : Entity_Id;
|
|
|
1679 K : Entity_Kind)
|
|
|
1680 is
|
|
|
1681 New_Ent : constant Entity_Id := New_Copy (E);
|
|
|
1682
|
|
|
1683 begin
|
|
|
1684 Set_Ekind (E, K);
|
|
|
1685 Set_Is_Constrained (E, True);
|
|
|
1686 Set_Is_First_Subtype (E, True);
|
|
|
1687 Set_Etype (E, New_Ent);
|
|
|
1688
|
|
|
1689 Append_Entity (New_Ent, Standard_Standard);
|
|
|
1690 Set_Is_Constrained (New_Ent, False);
|
|
|
1691 Set_Etype (New_Ent, New_Ent);
|
|
|
1692 Set_Is_Known_Valid (New_Ent, True);
|
|
|
1693
|
|
|
1694 if K = E_Signed_Integer_Subtype then
|
|
|
1695 Set_Etype (Low_Bound (Scalar_Range (E)), New_Ent);
|
|
|
1696 Set_Etype (High_Bound (Scalar_Range (E)), New_Ent);
|
|
|
1697 end if;
|
|
|
1698
|
|
|
1699 end Create_Unconstrained_Base_Type;
|
|
|
1700
|
|
|
1701 --------------------
|
|
|
1702 -- Identifier_For --
|
|
|
1703 --------------------
|
|
|
1704
|
|
|
1705 function Identifier_For (S : Standard_Entity_Type) return Node_Id is
|
|
|
1706 Ident_Node : Node_Id;
|
|
|
1707 begin
|
|
|
1708 Ident_Node := New_Node (N_Identifier, Stloc);
|
|
|
1709 Set_Chars (Ident_Node, Chars (Standard_Entity (S)));
|
|
|
1710 Set_Entity (Ident_Node, Standard_Entity (S));
|
|
|
1711 return Ident_Node;
|
|
|
1712 end Identifier_For;
|
|
|
1713
|
|
|
1714 --------------------
|
|
|
1715 -- Make_Component --
|
|
|
1716 --------------------
|
|
|
1717
|
|
|
1718 procedure Make_Component
|
|
|
1719 (Rec : Entity_Id;
|
|
|
1720 Typ : Entity_Id;
|
|
|
1721 Nam : String)
|
|
|
1722 is
|
|
|
1723 Id : constant Entity_Id := New_Standard_Entity;
|
|
|
1724
|
|
|
1725 begin
|
|
|
1726 Set_Ekind (Id, E_Component);
|
|
|
1727 Set_Etype (Id, Typ);
|
|
|
1728 Set_Scope (Id, Rec);
|
|
|
1729 Init_Component_Location (Id);
|
|
|
1730
|
|
|
1731 Set_Original_Record_Component (Id, Id);
|
|
|
1732 Make_Name (Id, Nam);
|
|
|
1733 Append_Entity (Id, Rec);
|
|
|
1734 end Make_Component;
|
|
|
1735
|
|
|
1736 -----------------
|
|
|
1737 -- Make_Formal --
|
|
|
1738 -----------------
|
|
|
1739
|
|
|
1740 function Make_Formal
|
|
|
1741 (Typ : Entity_Id;
|
|
|
1742 Formal_Name : String) return Entity_Id
|
|
|
1743 is
|
|
|
1744 Formal : Entity_Id;
|
|
|
1745
|
|
|
1746 begin
|
|
|
1747 Formal := New_Standard_Entity;
|
|
|
1748
|
|
|
1749 Set_Ekind (Formal, E_In_Parameter);
|
|
|
1750 Set_Mechanism (Formal, Default_Mechanism);
|
|
|
1751 Set_Scope (Formal, Standard_Standard);
|
|
|
1752 Set_Etype (Formal, Typ);
|
|
|
1753 Make_Name (Formal, Formal_Name);
|
|
|
1754
|
|
|
1755 return Formal;
|
|
|
1756 end Make_Formal;
|
|
|
1757
|
|
|
1758 ------------------
|
|
|
1759 -- Make_Integer --
|
|
|
1760 ------------------
|
|
|
1761
|
|
|
1762 function Make_Integer (V : Uint) return Node_Id is
|
|
|
1763 N : constant Node_Id := Make_Integer_Literal (Stloc, V);
|
|
|
1764 begin
|
|
|
1765 Set_Is_Static_Expression (N);
|
|
|
1766 return N;
|
|
|
1767 end Make_Integer;
|
|
|
1768
|
|
|
1769 ---------------
|
|
|
1770 -- Make_Name --
|
|
|
1771 ---------------
|
|
|
1772
|
|
|
1773 procedure Make_Name (Id : Entity_Id; Nam : String) is
|
|
|
1774 begin
|
|
|
1775 for J in 1 .. Nam'Length loop
|
|
|
1776 Name_Buffer (J) := Fold_Lower (Nam (Nam'First + (J - 1)));
|
|
|
1777 end loop;
|
|
|
1778
|
|
|
1779 Name_Len := Nam'Length;
|
|
|
1780 Set_Chars (Id, Name_Find);
|
|
|
1781 end Make_Name;
|
|
|
1782
|
|
|
1783 ------------------
|
|
|
1784 -- New_Operator --
|
|
|
1785 ------------------
|
|
|
1786
|
|
|
1787 function New_Operator (Op : Name_Id; Typ : Entity_Id) return Entity_Id is
|
|
|
1788 Ident_Node : Entity_Id;
|
|
|
1789
|
|
|
1790 begin
|
|
|
1791 Ident_Node := Make_Defining_Identifier (Stloc, Op);
|
|
|
1792
|
|
|
1793 Set_Is_Pure (Ident_Node, True);
|
|
|
1794 Set_Ekind (Ident_Node, E_Operator);
|
|
|
1795 Set_Etype (Ident_Node, Typ);
|
|
|
1796 Set_Scope (Ident_Node, Standard_Standard);
|
|
|
1797 Set_Homonym (Ident_Node, Get_Name_Entity_Id (Op));
|
|
|
1798 Set_Convention (Ident_Node, Convention_Intrinsic);
|
|
|
1799
|
|
|
1800 Set_Is_Immediately_Visible (Ident_Node, True);
|
|
|
1801 Set_Is_Intrinsic_Subprogram (Ident_Node, True);
|
|
|
1802
|
|
|
1803 Set_Name_Entity_Id (Op, Ident_Node);
|
|
|
1804 Append_Entity (Ident_Node, Standard_Standard);
|
|
|
1805 return Ident_Node;
|
|
|
1806 end New_Operator;
|
|
|
1807
|
|
|
1808 -------------------------
|
|
|
1809 -- New_Standard_Entity --
|
|
|
1810 -------------------------
|
|
|
1811
|
|
|
1812 function New_Standard_Entity
|
|
|
1813 (New_Node_Kind : Node_Kind := N_Defining_Identifier) return Entity_Id
|
|
|
1814 is
|
|
|
1815 E : constant Entity_Id := New_Entity (New_Node_Kind, Stloc);
|
|
|
1816
|
|
|
1817 begin
|
|
|
1818 -- All standard entities are Pure and Public
|
|
|
1819
|
|
|
1820 Set_Is_Pure (E);
|
|
|
1821 Set_Is_Public (E);
|
|
|
1822
|
|
|
1823 -- All standard entity names are analyzed manually, and are thus
|
|
|
1824 -- frozen as soon as they are created.
|
|
|
1825
|
|
|
1826 Set_Is_Frozen (E);
|
|
|
1827
|
|
|
1828 -- Set debug information required for all standard types
|
|
|
1829
|
|
|
1830 Set_Needs_Debug_Info (E);
|
|
|
1831
|
|
|
1832 -- All standard entities are built with fully qualified names, so
|
|
|
1833 -- set the flag to prevent an abortive attempt at requalification.
|
|
|
1834
|
|
|
1835 Set_Has_Qualified_Name (E);
|
|
|
1836
|
|
|
1837 -- Return newly created entity to be completed by caller
|
|
|
1838
|
|
|
1839 return E;
|
|
|
1840 end New_Standard_Entity;
|
|
|
1841
|
|
|
1842 function New_Standard_Entity (S : String) return Entity_Id is
|
|
|
1843 Ent : constant Entity_Id := New_Standard_Entity;
|
|
|
1844 begin
|
|
|
1845 Make_Name (Ent, S);
|
|
|
1846 return Ent;
|
|
|
1847 end New_Standard_Entity;
|
|
|
1848
|
|
|
1849 --------------------
|
|
|
1850 -- Print_Standard --
|
|
|
1851 --------------------
|
|
|
1852
|
|
|
1853 procedure Print_Standard is
|
|
|
1854
|
|
|
1855 procedure P (Item : String) renames Output.Write_Line;
|
|
|
1856 -- Short-hand, since we do a lot of line writes here
|
|
|
1857
|
|
|
1858 procedure P_Int_Range (Size : Pos);
|
|
|
1859 -- Prints the range of an integer based on its Size
|
|
|
1860
|
|
|
1861 procedure P_Float_Range (Id : Entity_Id);
|
|
|
1862 -- Prints the bounds range for the given float type entity
|
|
|
1863
|
|
|
1864 procedure P_Float_Type (Id : Entity_Id);
|
|
|
1865 -- Prints the type declaration of the given float type entity
|
|
|
1866
|
|
|
1867 procedure P_Mixed_Name (Id : Name_Id);
|
|
|
1868 -- Prints Id in mixed case
|
|
|
1869
|
|
|
1870 -------------------
|
|
|
1871 -- P_Float_Range --
|
|
|
1872 -------------------
|
|
|
1873
|
|
|
1874 procedure P_Float_Range (Id : Entity_Id) is
|
|
|
1875 begin
|
|
|
1876 Write_Str (" range ");
|
|
|
1877 UR_Write (Realval (Type_Low_Bound (Id)));
|
|
|
1878 Write_Str (" .. ");
|
|
|
1879 UR_Write (Realval (Type_High_Bound (Id)));
|
|
|
1880 Write_Str (";");
|
|
|
1881 Write_Eol;
|
|
|
1882 end P_Float_Range;
|
|
|
1883
|
|
|
1884 ------------------
|
|
|
1885 -- P_Float_Type --
|
|
|
1886 ------------------
|
|
|
1887
|
|
|
1888 procedure P_Float_Type (Id : Entity_Id) is
|
|
|
1889 begin
|
|
|
1890 Write_Str (" type ");
|
|
|
1891 P_Mixed_Name (Chars (Id));
|
|
|
1892 Write_Str (" is digits ");
|
|
|
1893 Write_Int (UI_To_Int (Digits_Value (Id)));
|
|
|
1894 Write_Eol;
|
|
|
1895 P_Float_Range (Id);
|
|
|
1896 Write_Str (" for ");
|
|
|
1897 P_Mixed_Name (Chars (Id));
|
|
|
1898 Write_Str ("'Size use ");
|
|
|
1899 Write_Int (UI_To_Int (RM_Size (Id)));
|
|
|
1900 Write_Line (";");
|
|
|
1901 Write_Eol;
|
|
|
1902 end P_Float_Type;
|
|
|
1903
|
|
|
1904 -----------------
|
|
|
1905 -- P_Int_Range --
|
|
|
1906 -----------------
|
|
|
1907
|
|
|
1908 procedure P_Int_Range (Size : Pos) is
|
|
|
1909 begin
|
|
|
1910 Write_Str (" is range -(2 **");
|
|
|
1911 Write_Int (Size - 1);
|
|
|
1912 Write_Str (")");
|
|
|
1913 Write_Str (" .. +(2 **");
|
|
|
1914 Write_Int (Size - 1);
|
|
|
1915 Write_Str (" - 1);");
|
|
|
1916 Write_Eol;
|
|
|
1917 end P_Int_Range;
|
|
|
1918
|
|
|
1919 ------------------
|
|
|
1920 -- P_Mixed_Name --
|
|
|
1921 ------------------
|
|
|
1922
|
|
|
1923 procedure P_Mixed_Name (Id : Name_Id) is
|
|
|
1924 begin
|
|
|
1925 Get_Name_String (Id);
|
|
|
1926
|
|
|
1927 for J in 1 .. Name_Len loop
|
|
|
1928 if J = 1 or else Name_Buffer (J - 1) = '_' then
|
|
|
1929 Name_Buffer (J) := Fold_Upper (Name_Buffer (J));
|
|
|
1930 end if;
|
|
|
1931 end loop;
|
|
|
1932
|
|
|
1933 Write_Str (Name_Buffer (1 .. Name_Len));
|
|
|
1934 end P_Mixed_Name;
|
|
|
1935
|
|
|
1936 -- Start of processing for Print_Standard
|
|
|
1937
|
|
|
1938 begin
|
|
|
1939 P ("-- Representation of package Standard");
|
|
|
1940 Write_Eol;
|
|
|
1941 P ("-- This is not accurate Ada, since new base types cannot be ");
|
|
|
1942 P ("-- created, but the listing shows the target dependent");
|
|
|
1943 P ("-- characteristics of the Standard types for this compiler");
|
|
|
1944 Write_Eol;
|
|
|
1945
|
|
|
1946 P ("package Standard is");
|
|
|
1947 P ("pragma Pure (Standard);");
|
|
|
1948 Write_Eol;
|
|
|
1949
|
|
|
1950 P (" type Boolean is (False, True);");
|
|
|
1951 P (" for Boolean'Size use 1;");
|
|
|
1952 P (" for Boolean use (False => 0, True => 1);");
|
|
|
1953 Write_Eol;
|
|
|
1954
|
|
|
1955 -- Integer types
|
|
|
1956
|
|
|
1957 Write_Str (" type Integer");
|
|
|
1958 P_Int_Range (Standard_Integer_Size);
|
|
|
1959 Write_Str (" for Integer'Size use ");
|
|
|
1960 Write_Int (Standard_Integer_Size);
|
|
|
1961 P (";");
|
|
|
1962 Write_Eol;
|
|
|
1963
|
|
|
1964 P (" subtype Natural is Integer range 0 .. Integer'Last;");
|
|
|
1965 P (" subtype Positive is Integer range 1 .. Integer'Last;");
|
|
|
1966 Write_Eol;
|
|
|
1967
|
|
|
1968 Write_Str (" type Short_Short_Integer");
|
|
|
1969 P_Int_Range (Standard_Short_Short_Integer_Size);
|
|
|
1970 Write_Str (" for Short_Short_Integer'Size use ");
|
|
|
1971 Write_Int (Standard_Short_Short_Integer_Size);
|
|
|
1972 P (";");
|
|
|
1973 Write_Eol;
|
|
|
1974
|
|
|
1975 Write_Str (" type Short_Integer");
|
|
|
1976 P_Int_Range (Standard_Short_Integer_Size);
|
|
|
1977 Write_Str (" for Short_Integer'Size use ");
|
|
|
1978 Write_Int (Standard_Short_Integer_Size);
|
|
|
1979 P (";");
|
|
|
1980 Write_Eol;
|
|
|
1981
|
|
|
1982 Write_Str (" type Long_Integer");
|
|
|
1983 P_Int_Range (Standard_Long_Integer_Size);
|
|
|
1984 Write_Str (" for Long_Integer'Size use ");
|
|
|
1985 Write_Int (Standard_Long_Integer_Size);
|
|
|
1986 P (";");
|
|
|
1987 Write_Eol;
|
|
|
1988
|
|
|
1989 Write_Str (" type Long_Long_Integer");
|
|
|
1990 P_Int_Range (Standard_Long_Long_Integer_Size);
|
|
|
1991 Write_Str (" for Long_Long_Integer'Size use ");
|
|
|
1992 Write_Int (Standard_Long_Long_Integer_Size);
|
|
|
1993 P (";");
|
|
|
1994 Write_Eol;
|
|
|
1995
|
|
|
1996 -- Floating point types
|
|
|
1997
|
|
|
1998 P_Float_Type (Standard_Short_Float);
|
|
|
1999 P_Float_Type (Standard_Float);
|
|
|
2000 P_Float_Type (Standard_Long_Float);
|
|
|
2001 P_Float_Type (Standard_Long_Long_Float);
|
|
|
2002
|
|
|
2003 P (" type Character is (...)");
|
|
|
2004 Write_Str (" for Character'Size use ");
|
|
|
2005 Write_Int (Standard_Character_Size);
|
|
|
2006 P (";");
|
|
|
2007 P (" -- See RM A.1(35) for details of this type");
|
|
|
2008 Write_Eol;
|
|
|
2009
|
|
|
2010 P (" type Wide_Character is (...)");
|
|
|
2011 Write_Str (" for Wide_Character'Size use ");
|
|
|
2012 Write_Int (Standard_Wide_Character_Size);
|
|
|
2013 P (";");
|
|
|
2014 P (" -- See RM A.1(36) for details of this type");
|
|
|
2015 Write_Eol;
|
|
|
2016
|
|
|
2017 P (" type Wide_Wide_Character is (...)");
|
|
|
2018 Write_Str (" for Wide_Wide_Character'Size use ");
|
|
|
2019 Write_Int (Standard_Wide_Wide_Character_Size);
|
|
|
2020 P (";");
|
|
|
2021 P (" -- See RM A.1(36) for details of this type");
|
|
|
2022
|
|
|
2023 P (" type String is array (Positive range <>) of Character;");
|
|
|
2024 P (" pragma Pack (String);");
|
|
|
2025 Write_Eol;
|
|
|
2026
|
|
|
2027 P (" type Wide_String is array (Positive range <>)" &
|
|
|
2028 " of Wide_Character;");
|
|
|
2029 P (" pragma Pack (Wide_String);");
|
|
|
2030 Write_Eol;
|
|
|
2031
|
|
|
2032 P (" type Wide_Wide_String is array (Positive range <>)" &
|
|
|
2033 " of Wide_Wide_Character;");
|
|
|
2034 P (" pragma Pack (Wide_Wide_String);");
|
|
|
2035 Write_Eol;
|
|
|
2036
|
|
|
2037 -- We only have one representation each for 32-bit and 64-bit sizes,
|
|
|
2038 -- so select the right one based on Duration_32_Bits_On_Target.
|
|
|
2039
|
|
|
2040 if Duration_32_Bits_On_Target then
|
|
|
2041 P (" type Duration is delta 0.020");
|
|
|
2042 P (" range -((2 ** 31) * 0.020) ..");
|
|
|
2043 P (" +((2 ** 31 - 1) * 0.020);");
|
|
|
2044 P (" for Duration'Small use 0.020;");
|
|
|
2045
|
|
|
2046 else
|
|
|
2047 P (" type Duration is delta 0.000000001");
|
|
|
2048 P (" range -((2 ** 63) * 0.000000001) ..");
|
|
|
2049 P (" +((2 ** 63 - 1) * 0.000000001);");
|
|
|
2050 P (" for Duration'Small use 0.000000001;");
|
|
|
2051 end if;
|
|
|
2052
|
|
|
2053 Write_Eol;
|
|
|
2054
|
|
|
2055 P (" Constraint_Error : exception;");
|
|
|
2056 P (" Program_Error : exception;");
|
|
|
2057 P (" Storage_Error : exception;");
|
|
|
2058 P (" Tasking_Error : exception;");
|
|
|
2059 P (" Numeric_Error : exception renames Constraint_Error;");
|
|
|
2060 Write_Eol;
|
|
|
2061
|
|
|
2062 P ("end Standard;");
|
|
|
2063 end Print_Standard;
|
|
|
2064
|
|
|
2065 -------------------------
|
|
|
2066 -- Register_Float_Type --
|
|
|
2067 -------------------------
|
|
|
2068
|
|
|
2069 procedure Register_Float_Type
|
|
|
2070 (Name : String;
|
|
|
2071 Digs : Positive;
|
|
|
2072 Float_Rep : Float_Rep_Kind;
|
|
|
2073 Precision : Positive;
|
|
|
2074 Size : Positive;
|
|
|
2075 Alignment : Natural)
|
|
|
2076 is
|
|
|
2077 pragma Unreferenced (Precision);
|
|
|
2078 -- See Build_Float_Type for the rationale
|
|
|
2079
|
|
|
2080 Ent : constant Entity_Id := New_Standard_Entity;
|
|
|
2081
|
|
|
2082 begin
|
|
|
2083 Set_Defining_Identifier (New_Node (N_Full_Type_Declaration, Stloc), Ent);
|
|
|
2084 Make_Name (Ent, Name);
|
|
|
2085 Set_Scope (Ent, Standard_Standard);
|
|
|
2086 Build_Float_Type
|
|
|
2087 (Ent, Pos (Digs), Float_Rep, Int (Size), Int (Alignment / 8));
|
|
|
2088
|
|
|
2089 if No (Back_End_Float_Types) then
|
|
|
2090 Back_End_Float_Types := New_Elmt_List;
|
|
|
2091 end if;
|
|
|
2092
|
|
|
2093 Append_Elmt (Ent, Back_End_Float_Types);
|
|
|
2094 end Register_Float_Type;
|
|
|
2095
|
|
|
2096 ----------------------
|
|
|
2097 -- Set_Float_Bounds --
|
|
|
2098 ----------------------
|
|
|
2099
|
|
|
2100 procedure Set_Float_Bounds (Id : Entity_Id) is
|
|
|
2101 L : Node_Id;
|
|
|
2102 H : Node_Id;
|
|
|
2103 -- Low and high bounds of literal value
|
|
|
2104
|
|
|
2105 R : Node_Id;
|
|
|
2106 -- Range specification
|
|
|
2107
|
|
|
2108 Radix : constant Uint := Machine_Radix_Value (Id);
|
|
|
2109 Mantissa : constant Uint := Machine_Mantissa_Value (Id);
|
|
|
2110 Emax : constant Uint := Machine_Emax_Value (Id);
|
|
|
2111 Significand : constant Uint := Radix ** Mantissa - 1;
|
|
|
2112 Exponent : constant Uint := Emax - Mantissa;
|
|
|
2113
|
|
|
2114 begin
|
|
|
2115 H := Make_Float_Literal (Stloc, Radix, Significand, Exponent);
|
|
|
2116 L := Make_Float_Literal (Stloc, Radix, -Significand, Exponent);
|
|
|
2117
|
|
|
2118 Set_Etype (L, Id);
|
|
|
2119 Set_Is_Static_Expression (L);
|
|
|
2120
|
|
|
2121 Set_Etype (H, Id);
|
|
|
2122 Set_Is_Static_Expression (H);
|
|
|
2123
|
|
|
2124 R := New_Node (N_Range, Stloc);
|
|
|
2125 Set_Low_Bound (R, L);
|
|
|
2126 Set_High_Bound (R, H);
|
|
|
2127 Set_Includes_Infinities (R, True);
|
|
|
2128 Set_Scalar_Range (Id, R);
|
|
|
2129 Set_Etype (R, Id);
|
|
|
2130 Set_Parent (R, Id);
|
|
|
2131 end Set_Float_Bounds;
|
|
|
2132
|
|
|
2133 ------------------------
|
|
|
2134 -- Set_Integer_Bounds --
|
|
|
2135 ------------------------
|
|
|
2136
|
|
|
2137 procedure Set_Integer_Bounds
|
|
|
2138 (Id : Entity_Id;
|
|
|
2139 Typ : Entity_Id;
|
|
|
2140 Lb : Uint;
|
|
|
2141 Hb : Uint)
|
|
|
2142 is
|
|
|
2143 L : Node_Id;
|
|
|
2144 H : Node_Id;
|
|
|
2145 -- Low and high bounds of literal value
|
|
|
2146
|
|
|
2147 R : Node_Id;
|
|
|
2148 -- Range specification
|
|
|
2149
|
|
|
2150 begin
|
|
|
2151 L := Make_Integer (Lb);
|
|
|
2152 H := Make_Integer (Hb);
|
|
|
2153
|
|
|
2154 Set_Etype (L, Typ);
|
|
|
2155 Set_Etype (H, Typ);
|
|
|
2156
|
|
|
2157 R := New_Node (N_Range, Stloc);
|
|
|
2158 Set_Low_Bound (R, L);
|
|
|
2159 Set_High_Bound (R, H);
|
|
|
2160 Set_Scalar_Range (Id, R);
|
|
|
2161 Set_Etype (R, Typ);
|
|
|
2162 Set_Parent (R, Id);
|
|
|
2163 Set_Is_Unsigned_Type (Id, Lb >= 0);
|
|
|
2164 end Set_Integer_Bounds;
|
|
|
2165
|
|
|
2166 end CStand;
|
