Found a weird bug, reporting it

docs/TODO.txt

@@ -3,17 +3,16 @@ DONE: var decl with a type, but no value
 DONE: type casting
 DONE: remove optimization option
 DONE: conditionals
+DONE: if-then-else
+DONE: chained if-then-else
+DONE: optional block around a path if it's only one statement
+DONE: while-then
+DONE: for-then
 
 TODO: string concat with the + operator
-TODO: empty string as falsy?
 TODO: increment & decrement operators
 TODO: a = b = c = 1;
 TODO: are compounds shallow or deep copies?
-TODO: if-then-else
-TODO: chained if-then-else
-TODO: optional block around a path if it's only one statement
-TODO: while-then
-TODO: for-then
 TODO: break and continue statements
 TODO: functions, and all of their features
 TODO: Assertion-based test scripts

scripts/empty.toy

@@ -0,0 +1,9 @@
+
+
+//BUG: this causes a strange error message
+if (true) {
+	;
+}
+else {
+	;
+}

source/interpreter.c

@@ -573,7 +573,7 @@ static bool execCompareLessEqual(Interpreter* interpreter, bool invert) {
 static bool execJump(Interpreter* interpreter) {
 	int target = (int)readShort(interpreter->bytecode, &interpreter->count);
 
-	if (target >= interpreter->length) {
+	if (target + interpreter->codeStart > interpreter->length) {
 		printf("Jump out of range\n");
 		return false;
 	}
@@ -587,7 +587,7 @@ static bool execJump(Interpreter* interpreter) {
 static bool execFalseJump(Interpreter* interpreter) {
 	int target = (int)readShort(interpreter->bytecode, &interpreter->count);
 
-	if (target >= interpreter->length) {
+	if (target + interpreter->codeStart > interpreter->length) {
 		printf("Jump out of range\n");
 		return false;
 	}

test/jumps.toy

@@ -37,4 +37,3 @@ assert forCache == 19, "for-loop failed";
 
 
 print "All good";
-