Examples with FormalTypeParameter sun.reflect.generics.tree.FormalTypeParameter used on opensource projects

Example 1 with FormalTypeParameter

use of sun.reflect.generics.tree.FormalTypeParameter in project jdk8u_jdk by JetBrains.

the class GenericDeclRepository method getTypeParameters.

// public API
/*
 * When queried for a particular piece of type information, the
 * general pattern is to consult the corresponding cached value.
 * If the corresponding field is non-null, it is returned.
 * If not, it is created lazily. This is done by selecting the appropriate
 * part of the tree and transforming it into a reflective object
 * using a visitor, which is created by feeding it the factory
 * with which the repository was created.
 */
/**
     * Return the formal type parameters of this generic declaration.
     * @return the formal type parameters of this generic declaration
     */
public TypeVariable<?>[] getTypeParameters() {
    TypeVariable<?>[] typeParams = this.typeParams;
    if (typeParams == null) {
        // lazily initialize type parameters
        // first, extract type parameter subtree(s) from AST
        FormalTypeParameter[] ftps = getTree().getFormalTypeParameters();
        // create array to store reified subtree(s)
        typeParams = new TypeVariable<?>[ftps.length];
        // reify all subtrees
        for (int i = 0; i < ftps.length; i++) {
            // obtain visitor
            Reifier r = getReifier();
            // reify subtree
            ftps[i].accept(r);
            // extract result from visitor and store it
            typeParams[i] = (TypeVariable<?>) r.getResult();
        }
        // cache overall result
        this.typeParams = typeParams;
    }
    // return cached result
    return typeParams.clone();
}