Package org.kie.dmn.feel.lang

Interface Scope

All Known Implementing Classes:

ScopeImpl, WrappingScopeImpl

public interface Scope

Field Summary

Fields

Modifier and Type	Field	Description
static String	BUILT_IN
static String	GLOBAL
static String	LOCAL

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	start(String token)	This method is used during context-aware parsing to find multi-token symbols iteratively.

Field Detail

BUILT_IN

static final String BUILT_IN

See Also:

Constant Field Values

GLOBAL

static final String GLOBAL

See Also:

Constant Field Values

LOCAL

static final String LOCAL

See Also:

Constant Field Values

Method Detail

getName

String getName()

Returns the scope name

Returns:

getParentScope

Scope getParentScope()

Returns the enclosing (parent) scope

Returns:

addChildScope

void addChildScope(Scope scope)

Adds an enclosed (child) scope

Parameters:

scope -

getChildScopes

Map<String,Scope> getChildScopes()

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.

Returns:

define

boolean define(Symbol symbol)

Defines a new symbol in this scope

Parameters:

symbol -

Returns:

resolve

Symbol resolve(String id)

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.

Parameters:

id -

Returns:

resolve

Symbol resolve(String[] qualifiedName)

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.

Parameters:

qualifiedName -

Returns:

start

void start(String token)

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

Parameters:

token -

followUp

boolean followUp(String token,
                 boolean isPredict)

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

Parameters:

token -

getSymbols

Map<String,Symbol> getSymbols()

getType

Type getType()

maybe null.