Statements

Expression

You can use any expression as an statement like in C:

2 + 2 * 2;

Condition

if statement in SLThree like in C:

if (true) { }

if (true) { } else { }

But you can't do that:

if (true) true;
else false;

Loops

The following is true for all loops:

• break; breaks the loop
• continue; start new iteration of loop
• As with the if, the loop body must be between { }

While

while in SLThree like in C:

using console;
a = 0;
while ((a += 1) < 10) { console.println(a); }

Foreach

foreach in SLThree almost like in C#:

using linq;
foreach (x in linq.range(1, 10)) { global.println(x); }

This example uses linq, see more details

Switch

switch statement in SLThree almost like in C#, but:

• You don't need to use break;
• You can use non-constant expressions in case
• Not supported yet default:

using console;
a = conosole.readln() as i64;
switch (a > 0) {
    case false: console.writeln("<=0");
    case true: console.writeln(">0");
}

Using

Unlike C#, in SLThree using loads not a namespace, but a type. Loading types is needed to access static members:

using System.Math;
Math.Pow(2.5, 2);

In addition, using can be used for shortened initialization of objects:

rand = new System.Random();

using System.Random as r;
rand = new r();

r.Next(0i32, 100i32);

Return

return works exactly like in C#:

func = a => {
    return a * 2;
};
func(2);

Context

To find out what a context is, follow here.

Similar to new context expression, but:

• For LANG 0.5.2 cannot be anonymous
• You can set the type cast via : T instead new context {} as T

context A {
    b = 2;
}

context B: SLThree.LongLiteral {
    Value = 2; 
}
B.GetValue(null);

This article is valid for LANG 0.5