Code coverage for expr_or_logic.li

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Section Header

  + name        := EXPR_OR_LOGIC;

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


  - author      := "Sonntag Benoit (bsonntag@loria.fr)";
  - comment     := "Or binary logical expression.";

Section Inherit

  + parent_expr_binary_logic:Expanded EXPR_BINARY_LOGIC;

Section Public

  + symbol:STRING_CONSTANT := "|";

  //
  // Execute.
  //

  - exec_conservator_left  left_cst :TYPE :EXPR <-
  //-- FALSE | E -> E
  ( + result:EXPR;

    (left_cst = type_false).if {
      result := right;
      left.remove;
    };
    result
  );

  - exec_conservator_right right_cst:TYPE :EXPR <-
  //-- E | FALSE -> E
  ( + result:EXPR;

    (right_cst = type_false).if {
      result := left;
      right.remove;
    };
    result
  );

  - exec left_cst:TYPE and right_cst:TYPE :EXPR <-
  //-- C1 | C2 -> C3
  ( + result:EXPR;

    (left_cst = type_true).if {
      result := left;
      right.remove;
    } else {
      result := right;
      left.remove;
    };
    result
  );

  - exec:EXPR <-
  //-- (E1 > E2) | (E1 = E2) -> E1 >= E2 (a lot of possibilities, but see INTEGER)
  //-- E | E -> E
  ( + result:EXPR;
    + sup:EXPR_SUP;
    + eq:EXPR_EQUAL;

    (left ~= right).if {
      result := left;
      right.remove;
    } else {
      sup ?= left;
      eq  ?= right;
      ((sup != NULL)    {eq != NULL}).if {
	((sup.left ~= eq.left)    {sup.right ~= eq.right}).if {
	  result := EXPR_SUP_EQ.create position with (sup.left) and (sup.right);
	  right.remove;
	};
      };
    };
    result
  );

  - exec_left  left_cst :TYPE :EXPR <-
  //-- TRUE | E -> TRUE
  ( + result:EXPR;

    (left_cst = type_true).if {
      result := left;
      right.remove;
    };
    result
  );

  - exec_right right_cst:TYPE :EXPR <-
  //-- E | TRUE -> TRUE
  ( + result:EXPR;

    (right_cst = type_true).if {
      result := right;
      left.remove;
    };
    result
  );