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// General test cases for compound assignments
// Also test case for Issue 624
// https://github.com/typetools/checker-framework/issues/624
import org.checkerframework.common.value.qual.IntVal;
import org.checkerframework.common.value.qual.StringVal;
public class CompoundAssignment {
@StringVal("hello") String field;
public void refinements() {
field = "hello";
// :: error: (compound.assignment.type.incompatible)
field += method();
// :: error: (assignment.type.incompatible)
// :: error: (compound.assignment.type.incompatible)
@StringVal("hellohellohello") String test = field += method();
}
@StringVal("hello") String method() {
// :: error: (assignment.type.incompatible)
field = "goodbye";
return "hello";
}
void value() {
@StringVal("hello") String s = "hello";
// :: error: (compound.assignment.type.incompatible)
s += "hello";
@IntVal(1) int i = 1;
// :: error: (compound.assignment.type.incompatible)
i += 1;
@IntVal(2) int j = 2;
// :: error: (compound.assignment.type.incompatible)
j += 2;
// :: error: (assignment.type.incompatible)
@IntVal(4) int four = j;
}
void value2() {
@StringVal("hello") String s = "hello";
// :: error: (assignment.type.incompatible)
s = s + "hello";
@IntVal(1) int i = 1;
// :: error: (assignment.type.incompatible)
i = i + 1;
}
void noErrorCompoundAssignments() {
@IntVal(0) int zero = 0;
zero *= 12;
@StringVal("null") String s = "null";
s += "";
}
void errorCompundAssignments() {
@StringVal("hello") String s = "hello";
s += "";
}
}
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