------------------------------------------------------------------------------ | |

-- -- | |

-- GNAT COMPILER COMPONENTS -- | |

-- -- | |

-- E X P _ C H 4 -- | |

-- -- | |

-- S p e c -- | |

-- -- | |

-- Copyright (C) 1992-2021, Free Software Foundation, Inc. -- | |

-- -- | |

-- GNAT is free software; you can redistribute it and/or modify it under -- | |

-- terms of the GNU General Public License as published by the Free Soft- -- | |

-- ware Foundation; either version 3, or (at your option) any later ver- -- | |

-- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- | |

-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- | |

-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- | |

-- for more details. You should have received a copy of the GNU General -- | |

-- Public License distributed with GNAT; see file COPYING3. If not, go to -- | |

-- http://www.gnu.org/licenses for a complete copy of the license. -- | |

-- -- | |

-- GNAT was originally developed by the GNAT team at New York University. -- | |

-- Extensive contributions were provided by Ada Core Technologies Inc. -- | |

-- -- | |

------------------------------------------------------------------------------ | |

-- Expand routines for chapter 4 constructs | |

with Types; use Types; | |

package Exp_Ch4 is | |

procedure Expand_N_Allocator (N : Node_Id); | |

procedure Expand_N_And_Then (N : Node_Id); | |

procedure Expand_N_Case_Expression (N : Node_Id); | |

procedure Expand_N_Explicit_Dereference (N : Node_Id); | |

procedure Expand_N_Expression_With_Actions (N : Node_Id); | |

procedure Expand_N_If_Expression (N : Node_Id); | |

procedure Expand_N_In (N : Node_Id); | |

procedure Expand_N_Indexed_Component (N : Node_Id); | |

procedure Expand_N_Not_In (N : Node_Id); | |

procedure Expand_N_Null (N : Node_Id); | |

procedure Expand_N_Op_Abs (N : Node_Id); | |

procedure Expand_N_Op_Add (N : Node_Id); | |

procedure Expand_N_Op_And (N : Node_Id); | |

procedure Expand_N_Op_Concat (N : Node_Id); | |

procedure Expand_N_Op_Divide (N : Node_Id); | |

procedure Expand_N_Op_Expon (N : Node_Id); | |

procedure Expand_N_Op_Eq (N : Node_Id); | |

procedure Expand_N_Op_Ge (N : Node_Id); | |

procedure Expand_N_Op_Gt (N : Node_Id); | |

procedure Expand_N_Op_Le (N : Node_Id); | |

procedure Expand_N_Op_Lt (N : Node_Id); | |

procedure Expand_N_Op_Minus (N : Node_Id); | |

procedure Expand_N_Op_Mod (N : Node_Id); | |

procedure Expand_N_Op_Multiply (N : Node_Id); | |

procedure Expand_N_Op_Ne (N : Node_Id); | |

procedure Expand_N_Op_Not (N : Node_Id); | |

procedure Expand_N_Op_Or (N : Node_Id); | |

procedure Expand_N_Op_Plus (N : Node_Id); | |

procedure Expand_N_Op_Rem (N : Node_Id); | |

procedure Expand_N_Op_Rotate_Left (N : Node_Id); | |

procedure Expand_N_Op_Rotate_Right (N : Node_Id); | |

procedure Expand_N_Op_Shift_Left (N : Node_Id); | |

procedure Expand_N_Op_Shift_Right (N : Node_Id); | |

procedure Expand_N_Op_Shift_Right_Arithmetic (N : Node_Id); | |

procedure Expand_N_Op_Subtract (N : Node_Id); | |

procedure Expand_N_Op_Xor (N : Node_Id); | |

procedure Expand_N_Or_Else (N : Node_Id); | |

procedure Expand_N_Qualified_Expression (N : Node_Id); | |

procedure Expand_N_Quantified_Expression (N : Node_Id); | |

procedure Expand_N_Selected_Component (N : Node_Id); | |

procedure Expand_N_Slice (N : Node_Id); | |

procedure Expand_N_Type_Conversion (N : Node_Id); | |

procedure Expand_N_Unchecked_Expression (N : Node_Id); | |

procedure Expand_N_Unchecked_Type_Conversion (N : Node_Id); | |

function Build_Eq_Call | |

(Typ : Entity_Id; | |

Loc : Source_Ptr; | |

Lhs : Node_Id; | |

Rhs : Node_Id) return Node_Id; | |

-- AI05-0123: Locate primitive equality for type if it exists, and build | |

-- the corresponding call. If operation is abstract, replace call with | |

-- an explicit raise. Return Empty if there is no primitive. | |

-- Used in the construction of record-equality routines for records here | |

-- and for variant records in exp_ch3.adb. These two paths are distinct | |

-- for historical but also technical reasons: for variant records the | |

-- constructed function includes a case statement with nested returns, | |

-- while for records without variants only a simple expression is needed. | |

function Expand_Record_Equality | |

(Nod : Node_Id; | |

Typ : Entity_Id; | |

Lhs : Node_Id; | |

Rhs : Node_Id; | |

Bodies : List_Id) return Node_Id; | |

-- Expand a record equality into an expression that compares the fields | |

-- individually to yield the required Boolean result. Loc is the | |

-- location for the generated nodes. Typ is the type of the record, and | |

-- Lhs, Rhs are the record expressions to be compared, these | |

-- expressions need not to be analyzed but have to be side-effect free. | |

-- Bodies is a list on which to attach bodies of local functions that | |

-- are created in the process. This is the responsibility of the caller | |

-- to insert those bodies at the right place. Nod provides the Sloc | |

-- value for generated code. | |

procedure Expand_Set_Membership (N : Node_Id); | |

-- For each choice of a set membership, we create a simple equality or | |

-- membership test. The whole membership is rewritten connecting these | |

-- with OR ELSE. | |

function Integer_Promotion_Possible (N : Node_Id) return Boolean; | |

-- Returns true if the node is a type conversion whose operand is an | |

-- arithmetic operation on signed integers, and the base type of the | |

-- signed integer type is smaller than Standard.Integer. In such case we | |

-- have special circuitry in Expand_N_Type_Conversion to promote both of | |

-- the operands to type Integer. | |

end Exp_Ch4; |