import org.checkerframework.dataflow.qual.Pure;
import org.checkerframework.framework.test.*;
import testlib.util.*;

// Tests for the meta-annotations for contracts.
class MetaPrecondition {

    String f1, f2, f3;
    MetaPrecondition p;

    @RequiresOdd("f1")
    void requiresF1() {
        // :: error: (assignment.type.incompatible)
        @Value String l1 = f1;
        @Odd String l2 = f1;
    }

    @Pure
    @RequiresOdd("f1")
    int requiresF1AndPure() {
        // :: error: (assignment.type.incompatible)
        @Value String l1 = f1;
        @Odd String l2 = f1;
        return 1;
    }

    @RequiresOdd("---")
    // :: error: (flowexpr.parse.error)
    void error() {
        // :: error: (assignment.type.incompatible)
        @Value String l1 = f1;
        // :: error: (assignment.type.incompatible)
        @Odd String l2 = f1;
    }

    @RequiresOdd("#1")
    void requiresParam(String p) {
        // :: error: (assignment.type.incompatible)
        @Value String l1 = p;
        @Odd String l2 = p;
    }

    @RequiresOdd({"#1", "#2"})
    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;
    }

    @RequiresOdd("#1")
    // :: 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)
        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();
    }

    void t3(@Odd String p1, String p2) {
        f1 = p1;
        requiresF1AndPure();
        requiresF1AndPure();
        requiresF1AndPure();
        requiresF1();
        // :: error: (contracts.precondition.not.satisfied)
        requiresF1();
    }
}