Constants
In all DSL files it is possible to define constants. If the target version supports the object class COOSYSTEM@1.1:TypedExpression, these constants are part of the software component and can be reused in other software components.
Example |
const DrinkType[] AlcoholicDrinksConst = [DT_SHOT, DT_LONGDRINK, DT_SOUR, DT_HIGHBALL];
const DrinkType[] NonAlcoholicDrinksConst = [DT_SOFTDRINK, DT_WATER, DT_JUICE]; const SomeLines LineConst = {
line1 = "First 1",
line2 = "Second line"
} |
These constants then can be used in generic assignments or inside of expressions.
Example |
const SomeLines LineConstEx = {
LineConst,
line2 = "Second line override",
line3 = "Third line"
} instance Bar MyDefaultBar {
barinitwith = AlcoholicDrinksConst;
barinitwithout = [DT_WATER, NonAlcoholicDrinksConst];
barinfo = {
LineConstEx,
line1 = "First line from init"
}
} instance Expression ex {
exprtext = expression {
DrinkType aDrink = DT_FIZZ;
if (aDrink in AlcoholicDrinksConst) {
coort.Trace("this drink contains alcohol", aDrink);
}
else if (aDrink in NonAlcoholicDrinksConst) {
coort.Trace("this drink does not contain alcohol", aDrink);
}
else {
coort.Trace("this drink might contain alcohol", aDrink);
}
SomeLines myline = {
LinesConst,
line3 = "a new line"
};
SomeLines[] mylines = [
LinesConst,
{
line3 = "a new line"
}
];
mylines = LinesConst;
}
} |
