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149 lines
2.5 KiB
Plaintext
149 lines
2.5 KiB
Plaintext
//declare a variable with an initial value
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var answer = 42;
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//declare a variable without an initial value
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var empty;
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//assign a previously existing variable
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answer = 6 * 9;
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//access a variable
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answer = answer + 1;
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//compound assignments
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answer += 5;
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answer -= 5;
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answer *= 9;
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answer /= 2;
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answer %= 10;
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//equality checks
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print 1 == 1; //true
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print 1 != 1; //false
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//comparison checks
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print 1 < 2; //true
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print "foo" > "bar"; //true
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print 1 < 2; //true
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print 1 > 2; //false
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print 2 <= 2; //true
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print 2 >= 2; //true
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print 1 <= 2; //true
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print 1 >= 2; //false
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//logical checks
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print true && true; //true
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print true && false; //false
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print false && true; //false
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print false && false; //false
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print true || true; //true
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print true || false; //true
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print false || true; //true
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print false || false; //false
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print !true; //false
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print !false; //true
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//logical AND short-circuits and chained assignments
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{
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var a = 1;
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var b = 2;
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var c = a + 1 && b + 2;
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assert a == 1, "short circuit 1.1";
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assert b == 2, "short circuit 1.2";
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assert c == 4, "short circuit 1.3";
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}
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{
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var a = 1;
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var b = 2;
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var c = a = (a + 1) && b + 2;
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assert a == 4, "short circuit 2.1";
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assert b == 2, "short circuit 2.2";
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assert c == 4, "short circuit 2.3";
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}
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{
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var a = 1;
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var b = 2;
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var c = a = a + 1 && b + 2;
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assert a == 4, "short circuit 3.1";
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assert b == 2, "short circuit 3.2";
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assert c == 4, "short circuit 3.3";
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}
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//logical OR short-circuits and chained assignments
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{
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var a = 1;
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var b = 2;
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var c = a + 1 || b + 2;
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assert a == 1, "short circuit 4.1";
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assert b == 2, "short circuit 4.2";
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assert c == 2, "short circuit 4.3";
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}
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{
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var a = 1;
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var b = 2;
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var c = a = (a + 1) || b + 2;
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assert a == 2, "short circuit 5.1";
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assert b == 2, "short circuit 5.2";
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assert c == 2, "short circuit 5.3";
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}
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{
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var a = 1;
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var b = 2;
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var c = a = a + 1 || b + 2;
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assert a == 2, "short circuit 6.1";
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assert b == 2, "short circuit 6.2";
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assert c == 2, "short circuit 6.3";
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}
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//types
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{
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var a: int;
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var b: int = 42;
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a = 69;
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b = 8891;
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print a;
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print b;
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}
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//constants
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{
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var c: int const = 42;
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print c;
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}
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//indexing
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{
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var s = "Hello" .. "world!";
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print s[3, 3];
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}
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//increment & decrement (prefix)
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{
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var a = 42;
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assert a == 42, "prefix increment & decrement 1.1";
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assert ++a == 43, "prefix increment & decrement 1.2";
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assert a == 43, "prefix increment & decrement 1.3";
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assert --a == 42, "prefix increment & decrement 1.4";
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assert a == 42, "prefix increment & decrement 1.5";
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}
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//TODO: type casting
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