Scope

Package: com.hypixel.hytale.server.npc.util.expression

public interface Scope

Contract for providing named variables and functions to the expression compiler and executor. A scope supplies typed supplier accessors for all six value types (string, number, boolean, and their array variants), a function lookup, a constness check, and a type query. Default methods delegate supplier calls for convenience (e.g. getString calls getStringSupplier(...).get()).

Abstract Methods

Return Type	Signature
Supplier<String>	getStringSupplier(String name)
DoubleSupplier	getNumberSupplier(String name)
BooleanSupplier	getBooleanSupplier(String name)
Supplier<String[]>	getStringArraySupplier(String name)
Supplier<double[]>	getNumberArraySupplier(String name)
Supplier<boolean[]>	getBooleanArraySupplier(String name)
Function	getFunction(String name)
boolean	isConstant(String name)
@Nullable ValueType	getType(String name)

Default Methods

Return Type	Signature
String	getString(String name)
double	getNumber(String name)
boolean	getBoolean(String name)
String[]	getStringArray(String name)
double[]	getNumberArray(String name)
boolean[]	getBooleanArray(String name)

Static Methods

Modifier	Return Type	Signature
@Nonnull static	String	encodeFunctionName(@Nonnull String name, @Nonnull ValueType[] values)
static	char	encodeType(@Nonnull ValueType type)

encodeFunctionName produces a mangled key like max@nn for overload resolution. Each ValueType maps to a single character (n, s, b, N, S, B).

Inner Types

Function (functional interface)

@FunctionalInterface
public interface Function {
    void call(ExecutionContext context, int numArgs);
}

A callable expression function. Receives the ExecutionContext (with arguments on the stack) and the argument count.

Related Types

• StdScope — symbol-table implementation of this interface
• StdLib — singleton standard library scope
• ExecutionContext — the VM that reads from scopes