Package org.kie.dmn.feel.lang.types

Class ScopeImpl

java.lang.Object

org.kie.dmn.feel.lang.types.ScopeImpl

All Implemented Interfaces:

Scope

public class ScopeImpl
extends Object
implements Scope

Field Summary

Fields

Modifier and Type	Field	Description
static org.slf4j.Logger	LOG

Fields inherited from interface org.kie.dmn.feel.lang.Scope

BUILT_IN, GLOBAL, LOCAL

Constructor Summary

Constructors

Constructor	Description
ScopeImpl()
ScopeImpl(String name, Scope parentScope)
ScopeImpl(String name, Scope parentScope, Type type)

Method Summary

Modifier and Type	Method	Description
void	addChildScope(Scope scope)	Adds an enclosed (child) scope
boolean	define(Symbol symbol)	Defines a new symbol in this scope
boolean	followUp(String token, boolean isPredict)	This method is used during context-aware parsing to find multi-token symbols iteratively.
Map<String,Scope>	getChildScopes()	Gets a map of all children scopes.
String	getName()	Returns the scope name
Scope	getParentScope()	Returns the enclosing (parent) scope
Map<String,Symbol>	getSymbols()
Type	getType()	maybe null.
Symbol	resolve(String id)	Searches and returns a symbol with the given id if it exists.
Symbol	resolve(String[] qualifiedName)	Searches and returns a symbol with the given qualified name if it exists.
void	setChildScopes(Map<String,Scope> childScopes)
void	setName(String name)
void	setParentScope(Scope parentScope)
void	start(String token)	This method is used during context-aware parsing to find multi-token symbols iteratively.
static TokenTree	tokenTreeFromSymbols(Map<String,Symbol> symbols)
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

LOG

public static final org.slf4j.Logger LOG

Constructor Detail

ScopeImpl

public ScopeImpl()

ScopeImpl

public ScopeImpl(String name,
                 Scope parentScope)

ScopeImpl

public ScopeImpl(String name,
                 Scope parentScope,
                 Type type)

Method Detail

getName

public String getName()

Description copied from interface: Scope

Returns the scope name

Specified by:

getName in interface Scope

Returns:

getParentScope

public Scope getParentScope()

Description copied from interface: Scope

Returns the enclosing (parent) scope

Specified by:

getParentScope in interface Scope

Returns:

define

public boolean define(Symbol symbol)

Description copied from interface: Scope

Defines a new symbol in this scope

Specified by:

define in interface Scope

Returns:

resolve

public Symbol resolve(String id)

Description copied from interface: Scope

Searches and returns a symbol with the given id if it exists. The search is recursive up, so if a symbol is not found in the current scope, the algorithm searches the parent scopes all the way to the root built-in scope.

Specified by:

resolve in interface Scope

Returns:

resolve

public Symbol resolve(String[] qualifiedName)

Description copied from interface: Scope

Searches and returns a symbol with the given qualified name if it exists. The search is recursive up, so if a symbol is not found in the current scope, the algorith searches the parend scopes all the way to the root built-in scope.

Specified by:

resolve in interface Scope

Returns:

setName

public void setName(String name)

setParentScope

public void setParentScope(Scope parentScope)

addChildScope

public void addChildScope(Scope scope)

Description copied from interface: Scope

Adds an enclosed (child) scope

Specified by:

addChildScope in interface Scope

getChildScopes

public Map<String,Scope> getChildScopes()

Description copied from interface: Scope

Gets a map of all children scopes. The key of the map is the string name of the children scope and the value is the scope itself.

Specified by:

getChildScopes in interface Scope

Returns:

setChildScopes

public void setChildScopes(Map<String,Scope> childScopes)

getSymbols

public Map<String,Symbol> getSymbols()

Specified by:

getSymbols in interface Scope

start

public void start(String token)

Description copied from interface: Scope

This method is used during context-aware parsing to find multi-token symbols iteratively. It is used in conjunction with the #followUp method below.

Specified by:

start in interface Scope

followUp

public boolean followUp(String token,
                        boolean isPredict)

Description copied from interface: Scope

This method is used during context-aware parsing to find multi-token symbols iteratively. It is used in conjunction with the #start method above.

Specified by:

followUp in interface Scope

tokenTreeFromSymbols

public static TokenTree tokenTreeFromSymbols(Map<String,Symbol> symbols)

toString

public String toString()

Overrides:

toString in class Object

getType

public Type getType()

Description copied from interface: Scope

maybe null.

Specified by:

getType in interface Scope