Class StdScope

java.lang.Object

com.hypixel.hytale.server.npc.util.expression.StdScope

All Implemented Interfaces:

Scope

Direct Known Subclasses:

StdLib

public class StdScope
extends Object
implements Scope

Helper class for implementing symbol tables for expressions.

A StdScope can have a parent scope used when symbol can't be resolved in current scope.

Nested Class Summary

Nested classes/interfaces inherited from interface Scope

Scope.Function

Constructor Summary

Constructors

Constructor	Description
StdScope(Scope parent)

Method Summary

Modifier and Type	Method	Description
void	addBooleanArraySupplier(String name, Supplier<boolean[]> value)
void	addConst(String name, boolean value)
void	addConst(String name, boolean[] value)
void	addConst(String name, double value)
void	addConst(String name, double[] value)
void	addConst(String name, String value)
void	addConst(String name, String[] value)
void	addConstEmptyArray(String name)
void	addDoubleArraySupplier(String name, Supplier<double[]> value)
void	addInvariant(String name, Scope.Function function, ValueType returnType, ValueType... argumentTypes)
void	addStringArraySupplier(String name, Supplier<String[]> value)
void	addSupplier(String name, BooleanSupplier value)
void	addSupplier(String name, DoubleSupplier value)
void	addSupplier(String name, Supplier<String> value)
void	addVar(String name, boolean value)
void	addVar(String name, boolean[] value)
void	addVar(String name, double value)
void	addVar(String name, double[] value)
void	addVar(String name, String value)
void	addVar(String name, String[] value)
void	addVariant(String name, Scope.Function function, ValueType returnType, ValueType... argumentTypes)
void	changeValue(String name, boolean value)	Change value of variable in a scope.
void	changeValue(String name, boolean[] value)	Change value of variable in a scope.
void	changeValue(String name, double value)	Change value of variable in a scope.
void	changeValue(String name, double[] value)	Change value of variable in a scope.
void	changeValue(String name, String value)	Change value of variable in a scope.
void	changeValue(String name, String[] value)	Change value of variable in a scope.
void	changeValueToEmptyArray(String name)	Change value of variable in a scope to empty array.
static StdScope	copyOf(StdScope other)	Shallow clone a scope (but not the symbols itself).
Supplier<boolean[]>	getBooleanArraySupplier(String name)
BooleanSupplier	getBooleanSupplier(String name)
Scope.Function	getFunction(String name)
Supplier<double[]>	getNumberArraySupplier(String name)
DoubleSupplier	getNumberSupplier(String name)
Supplier<String[]>	getStringArraySupplier(String name)
Supplier<String>	getStringSupplier(String name)
ValueType	getType(String name)
boolean	isConstant(String name)	Check if a variable is a constant or a function always returns the same result for the same set of arguments.
StdScope	merge(StdScope other)	Merge symbols of another scope into current scope.
static StdScope	mergeScopes(StdScope first, StdScope second)

Methods inherited from class Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface Scope

getBoolean, getBooleanArray, getNumber, getNumberArray, getString, getStringArray

Constructor Details

StdScope

public StdScope(Scope parent)

Method Details

copyOf

@Nonnull
public static StdScope copyOf(@Nonnull
 StdScope other)

Shallow clone a scope (but not the symbols itself).

Parameters:

other - Scope to copy

Returns:

Duplicate of scope

merge

@Nonnull
public StdScope merge(@Nonnull
 StdScope other)

Merge symbols of another scope into current scope.

Parameters:

other - Scope to get symbols from

Returns:

Current scope with symbols merged in

mergeScopes

@Nonnull
public static StdScope mergeScopes(@Nonnull
 StdScope first,
 @Nonnull
 StdScope second)

addConst

public void addConst(String name,
 @Nullable
 String value)

addConst

public void addConst(String name,
 double value)

addConst

public void addConst(String name,
 boolean value)

addConst

public void addConst(String name,
 @Nullable
 String[] value)

addConst

public void addConst(String name,
 @Nullable
 double[] value)

addConst

public void addConst(String name,
 @Nullable
 boolean[] value)

addConstEmptyArray

public void addConstEmptyArray(String name)

addVar

public void addVar(String name,
 @Nullable
 String value)

addVar

public void addVar(String name,
 double value)

addVar

public void addVar(String name,
 boolean value)

addVar

public void addVar(String name,
 @Nullable
 String[] value)

addVar

public void addVar(String name,
 @Nullable
 double[] value)

addVar

public void addVar(String name,
 @Nullable
 boolean[] value)

addInvariant

public void addInvariant(@Nonnull
 String name,
 Scope.Function function,
 ValueType returnType,
 @Nonnull
 ValueType... argumentTypes)

addVariant

public void addVariant(@Nonnull
 String name,
 Scope.Function function,
 ValueType returnType,
 @Nonnull
 ValueType... argumentTypes)

addSupplier

public void addSupplier(String name,
 Supplier<String> value)

addSupplier

public void addSupplier(String name,
 DoubleSupplier value)

addSupplier

public void addSupplier(String name,
 BooleanSupplier value)

addStringArraySupplier

public void addStringArraySupplier(String name,
 Supplier<String[]> value)

addDoubleArraySupplier

public void addDoubleArraySupplier(String name,
 Supplier<double[]> value)

addBooleanArraySupplier

public void addBooleanArraySupplier(String name,
 Supplier<boolean[]> value)

changeValue

public void changeValue(String name,
 @Nullable
 String value)

Change value of variable in a scope.

Use copy-on-write to create an new symbol for a changed value.

Parameters:

name - Name of variable

value - New value of variable

changeValue

public void changeValue(String name,
 double value)

Change value of variable in a scope.

Use copy-on-write to create an new symbol for a changed value.

Parameters:

name - Name of variable

value - New value of variable

changeValue

public void changeValue(String name,
 boolean value)

Change value of variable in a scope.

Use copy-on-write to create an new symbol for a changed value.

Parameters:

name - Name of variable

value - New value of variable

changeValue

public void changeValue(String name,
 @Nullable
 String[] value)

Change value of variable in a scope.

Use copy-on-write to create an new symbol for a changed value.

Parameters:

name - Name of variable

value - New value of variable

changeValue

public void changeValue(String name,
 @Nullable
 double[] value)

Change value of variable in a scope.

Use copy-on-write to create an new symbol for a changed value.

Parameters:

name - Name of variable

value - New value of variable

changeValue

public void changeValue(String name,
 @Nullable
 boolean[] value)

Change value of variable in a scope.

Use copy-on-write to create an new symbol for a changed value.

Parameters:

name - Name of variable

value - New value of variable

changeValueToEmptyArray

public void changeValueToEmptyArray(String name)

Change value of variable in a scope to empty array.

Use copy-on-write to create an new symbol for a changed value.

Parameters:

name - Name of variable

getStringSupplier

public Supplier<String> getStringSupplier(String name)

Specified by:

getStringSupplier in interface Scope

getNumberSupplier

public DoubleSupplier getNumberSupplier(String name)

Specified by:

getNumberSupplier in interface Scope

getBooleanSupplier

public BooleanSupplier getBooleanSupplier(String name)

Specified by:

getBooleanSupplier in interface Scope

getStringArraySupplier

public Supplier<String[]> getStringArraySupplier(String name)

Specified by:

getStringArraySupplier in interface Scope

getNumberArraySupplier

public Supplier<double[]> getNumberArraySupplier(String name)

Specified by:

getNumberArraySupplier in interface Scope

getBooleanArraySupplier

public Supplier<boolean[]> getBooleanArraySupplier(String name)

Specified by:

getBooleanArraySupplier in interface Scope

getFunction

public Scope.Function getFunction(String name)

Specified by:

getFunction in interface Scope

isConstant

public boolean isConstant(String name)

Description copied from interface: Scope

Check if a variable is a constant or a function always returns the same result for the same set of arguments.

Specified by:

isConstant in interface Scope

Parameters:

name - Name of function/variable.

Returns:

true if variable is constant or function is invariant

getType

@Nullable
public ValueType getType(String name)

Specified by:

getType in interface Scope