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If else

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Adding control...

I added if( boolean expression ) { code block } else { code block } control to the language today. The 'else' statement is optional of course. Next I'll add a 'while' statement and then some sort of 'for' loop similar to the C 'for' statement. I can't think of how I would add a switch statement to this interpreted language so I'll skip over that one for now.


With the addition of code blocks comes the addition of variable scope. I created a class to better manage variable memory. It enables variables to be declared inside of a code block such as an 'if' statement's code block. Once the program moves out of that scope the variables are destroyed. This basically allows for the below code to operate without any errors.

int x = 10;
int y = 12;

if (x < y)
int z = 22; // Declare integer z inside the scope of this code block.
print z;
} // z is destroyed here.

int z = 55; // z is declared again with no error.
print z;

Output: 22 55

The core component of the variable memory class is a stack of memory maps. Eventually every part of the code will be in one kind of function or another so every function will have its own memory class. A stack will be used to keep track of which one is currently active.
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