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import org.checkerframework.dataflow.qual.Pure;
import org.checkerframework.framework.qual.RequiresQualifier;
import org.checkerframework.framework.qual.RequiresQualifiers;
import org.checkerframework.framework.test.*;
import testlib.util.*;
// various tests for the precondition mechanism
class Precondition {
String f1, f2, f3;
Precondition p;
@RequiresQualifier(expression = "f1", qualifier = Odd.class)
void requiresF1() {
// :: error: (assignment.type.incompatible)
@Value String l1 = f1;
@Odd String l2 = f1;
}
@Pure
@RequiresQualifier(expression = "f1", qualifier = Odd.class)
int requiresF1AndPure() {
// :: error: (assignment.type.incompatible)
@Value String l1 = f1;
@Odd String l2 = f1;
return 1;
}
@RequiresQualifier(expression = "f1", qualifier = Value.class)
void requiresF1Value() {
// :: error: (assignment.type.incompatible)
@Odd String l1 = f1;
@Value String l2 = f1;
}
@RequiresQualifier(expression = "---", qualifier = Odd.class)
// :: error: (flowexpr.parse.error)
void error() {
// :: error: (assignment.type.incompatible)
@Value String l1 = f1;
// :: error: (assignment.type.incompatible)
@Odd String l2 = f1;
}
@RequiresQualifier(expression = "#1", qualifier = Odd.class)
void requiresParam(String p) {
// :: error: (assignment.type.incompatible)
@Value String l1 = p;
@Odd String l2 = p;
}
@RequiresQualifier(
expression = {"#1", "#2"},
qualifier = Odd.class)
void requiresParams(String p1, String p2) {
// :: error: (assignment.type.incompatible)
@Value String l1 = p1;
// :: error: (assignment.type.incompatible)
@Value String l2 = p2;
@Odd String l3 = p1;
@Odd String l4 = p2;
}
@RequiresQualifier(expression = "#1", qualifier = Odd.class)
// :: error: (flowexpr.parse.index.too.big)
void param3() {}
void t1(@Odd String p1, String p2) {
// :: error: (contracts.precondition.not.satisfied)
requiresF1();
// :: error: (contracts.precondition.not.satisfied)
requiresF1Value();
// :: error: (contracts.precondition.not.satisfied)
requiresParam(p2);
// :: error: (contracts.precondition.not.satisfied)
requiresParams(p1, p2);
}
void t2(@Odd String p1, String p2) {
f1 = p1;
requiresF1();
// :: error: (contracts.precondition.not.satisfied)
requiresF1();
// :: error: (contracts.precondition.not.satisfied)
requiresF1Value();
}
void t3(@Odd String p1, String p2) {
f1 = p1;
requiresF1AndPure();
requiresF1AndPure();
requiresF1AndPure();
requiresF1();
// :: error: (contracts.precondition.not.satisfied)
requiresF1();
}
void t4(@Odd String p1, String p2, @Value String p3) {
f1 = p1;
requiresF1();
f1 = p3;
requiresF1Value();
requiresParam(p1);
requiresParams(p1, p1);
}
class Inner {
@RequiresQualifier(expression = "f1", qualifier = Odd.class)
void foo() {}
}
@Odd String f4;
@RequiresQualifier(expression = "f4", qualifier = Odd.class)
void requiresF4() {}
void tt1() {
requiresF4();
}
/** *** multiple preconditions ***** */
@RequiresQualifier(expression = "f1", qualifier = Value.class)
@RequiresQualifier(expression = "f2", qualifier = Odd.class)
void multi() {
@Value String l1 = f1;
@Odd String l2 = f2;
// :: error: (assignment.type.incompatible)
@Value String l3 = f2;
// :: error: (assignment.type.incompatible)
@Odd String l4 = f1;
}
@RequiresQualifiers({
@RequiresQualifier(expression = "f1", qualifier = Value.class),
@RequiresQualifier(expression = "f2", qualifier = Odd.class)
})
void multi_explicit_requiresqualifiers() {
@Value String l1 = f1;
@Odd String l2 = f2;
// :: error: (assignment.type.incompatible)
@Value String l3 = f2;
// :: error: (assignment.type.incompatible)
@Odd String l4 = f1;
}
@RequiresQualifiers({@RequiresQualifier(expression = "--", qualifier = Value.class)})
// :: error: (flowexpr.parse.error)
void error2() {}
void t5(@Odd String p1, String p2, @Value String p3) {
// :: error: (contracts.precondition.not.satisfied)
multi();
f1 = p3;
// :: error: (contracts.precondition.not.satisfied)
multi();
f1 = p3;
f2 = p1;
multi();
// :: error: (flowexpr.parse.error)
error2();
}
}
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