minijava/TypeInstance.java


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package minijava;

public class TypeInstance {
    TypeEnum type;
    String type_name;

    public String toString() {
        return "name:" + type_name + "|type:" + type;
    }

    public TypeInstance(String type_name, TypeEnum type) {
        this.type = type;
        this.type_name = type_name;
    }

    public boolean equal_type(TypeInstance other) {
        /**
         * Given a TypeInstance object other,
         * returns true if other object
         * is the same type as this one.
         *
         * We can say two types are equal, as
         * long as they are not equal on a
         * type error!
         */

        return this.type != TypeEnum.ERROR &&
            this.type == other.type;
    }

    public boolean has_checked() {
        return type != TypeEnum.ERROR;
    }

    public TypeEnum get_type() {
        return this.type;
    }

    public String get_type_name() {
        return this.type_name;
    }

}