Code coverage for expr_neg.li

///////////////////////////////////////////////////////////////////////////////
//                             Lisaac Compiler                               //
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//                   LSIIT - ULP - CNRS - INRIA - FRANCE                     //
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///////////////////////////////////////////////////////////////////////////////
Section Header

  + name        := EXPR_NEG;

  - copyright   := "2003-2007 Benoit Sonntag";


  - author      := "Sonntag Benoit (bsonntag@loria.fr)";
  - comment     := "Negatif unary arithmetic expression.";

Section Inherit

  + parent_expr_unary:Expanded EXPR_UNARY;

Section Public

  - symbol:CHARACTER <- '-';

  //
  // Execute.
  //

  - exec_conservator:EXPR <-
  //-- - - E -> E
  ( + sub:EXPR_NEG;
    + result:EXPR;

    sub ?= right;
    (sub != NULL).if {
      result := sub.right;
    };
    result
  );

  - exec_right right_cst:INTEGER_CST :EXPR <-
  //-- - C1 -> C2
  ( + result:EXPR;
    (right_cst.is_signed).if {
      right_cst.set_value (- right_cst.value);
      result := right_cst;
    };
    result
  );