lingua-franca 0.10.1
Lingua Franca code generator
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org.lflang.generator.NamedInstance< T extends EObject > Class Template Referenceabstract

Base class for compile-time instances with names in Lingua Franca. More...

Public Member Functions

getDefinition ()
 Return the definition, which is the AST node for this object.
int getDepth ()
 Get the depth of the reactor instance.
String getFullName ()
 Return the full name of this instance, which has the form "a.b.c", where "c" is the name of this instance, "b" is the name of its container, and "a" is the name of its container, stopping at the container in main.
String getFullNameWithJoiner (String joiner)
 Return a string of the form "a.b.c", where "." is replaced by the specified joiner, "c" is the name of this instance, "b" is the name of its container, and "a" is the name of its container, stopping at the container in main.
ModeInstance getMode (boolean direct)
 Returns the directly/indirectly enclosing mode.
abstract String getName ()
 Return the name of this instance as given in its definition.
ReactorInstance getParent ()
 Return the parent or null if this is a top-level reactor.
ReactorInstance getParent (int d)
 Return the parent at the given depth or null if there is no parent at the given depth.
int getWidth ()
 Return the width of this instance, which in this base class is 1.
boolean hasParent (ReactorInstance container)
 Return true if this instance has the specified parent (possibly indirectly, anywhere up the hierarchy).
List< ReactorInstanceparents ()
 Return a list of all the parents starting with the root().
ReactorInstance root ()
 Return the root reactor, which is the top-level parent.
void setWidth (int width)
 Set the width.
String uniqueID ()
 Return an identifier for this instance, which has the form "a_b_c" or "a_b_c_n", where "c" is the name of this instance, "b" is the name of its container, and "a" is the name of its container, stopping at the container in main.

Static Public Attributes

static int identifierLengthLimit = 40
 A limit on the number of characters returned by uniqueID.

Protected Member Functions

 NamedInstance (T definition, ReactorInstance parent)
 Construct a new instance with the specified definition and parent.

Protected Attributes

int depth = 0
 The depth in the hierarchy of this instance.

Package Attributes

definition
 The Instantiation AST object from which this was created.
ReactorInstance parent
 The reactor instance that creates this instance.
HashMap< String, Integer > uniqueIDCount
 Map from a name of the form a_b_c to the number of unique IDs with that prefix that have been already assigned.
int width = 1
 The width of this instance.

Detailed Description

Base class for compile-time instances with names in Lingua Franca.

An instance of concrete subclasses of this class represents one or more runtime instances of a reactor, port, reaction, etc. There will be more than one runtime instance if the object or any of its parents is a bank of reactors.

Author
Marten Lohstroh
Edward A. Lee

Constructor & Destructor Documentation

◆ NamedInstance()

org.lflang.generator.NamedInstance< T extends EObject >.NamedInstance ( T definition,
ReactorInstance parent )
protected

Construct a new instance with the specified definition and parent.

E.g., for a reactor instance, the definition is Instantiation, and for a port instance, it is Port. These are nodes in the AST. This is protected because only subclasses should be constructed.

Parameters
definitionThe definition in the AST for this instance.
parentThe reactor instance that creates this instance.

Member Function Documentation

◆ getDefinition()

T org.lflang.generator.NamedInstance< T extends EObject >.getDefinition ( )

Return the definition, which is the AST node for this object.

◆ getDepth()

int org.lflang.generator.NamedInstance< T extends EObject >.getDepth ( )

Get the depth of the reactor instance.

This is 0 for the main reactor, 1 for reactors immediately contained therein, etc.

◆ getFullName()

String org.lflang.generator.NamedInstance< T extends EObject >.getFullName ( )

Return the full name of this instance, which has the form "a.b.c", where "c" is the name of this instance, "b" is the name of its container, and "a" is the name of its container, stopping at the container in main.

If any reactor in the hierarchy is in a bank of reactors then, it will appear as a[index]. Similarly, if c is a port in a multiport, it will appear as c[index].

Returns
The full name of this instance.

◆ getFullNameWithJoiner()

String org.lflang.generator.NamedInstance< T extends EObject >.getFullNameWithJoiner ( String joiner)

Return a string of the form "a.b.c", where "." is replaced by the specified joiner, "c" is the name of this instance, "b" is the name of its container, and "a" is the name of its container, stopping at the container in main.

Returns
A string representing this instance.

◆ getMode()

ModeInstance org.lflang.generator.NamedInstance< T extends EObject >.getMode ( boolean direct)

Returns the directly/indirectly enclosing mode.

Parameters
directflag whether to check only for direct enclosing mode or also consider modes of parent reactor instances.
Returns
The mode, if any, null otherwise.

◆ getName()

abstract String org.lflang.generator.NamedInstance< T extends EObject >.getName ( )
abstract

Return the name of this instance as given in its definition.

Note that this is unique only relative to other instances with the same parent.

Returns
The name of this instance within its parent.

◆ getParent() [1/2]

ReactorInstance org.lflang.generator.NamedInstance< T extends EObject >.getParent ( )

Return the parent or null if this is a top-level reactor.

◆ getParent() [2/2]

ReactorInstance org.lflang.generator.NamedInstance< T extends EObject >.getParent ( int d)

Return the parent at the given depth or null if there is no parent at the given depth.

Parameters
dThe depth.

◆ getWidth()

int org.lflang.generator.NamedInstance< T extends EObject >.getWidth ( )

Return the width of this instance, which in this base class is 1.

Subclasses PortInstance and ReactorInstance change this to the multiport and bank widths respectively.

◆ hasParent()

boolean org.lflang.generator.NamedInstance< T extends EObject >.hasParent ( ReactorInstance container)

Return true if this instance has the specified parent (possibly indirectly, anywhere up the hierarchy).

◆ parents()

List< ReactorInstance > org.lflang.generator.NamedInstance< T extends EObject >.parents ( )

Return a list of all the parents starting with the root().

◆ root()

ReactorInstance org.lflang.generator.NamedInstance< T extends EObject >.root ( )

Return the root reactor, which is the top-level parent.

Returns
The top-level parent.

◆ setWidth()

void org.lflang.generator.NamedInstance< T extends EObject >.setWidth ( int width)

Set the width.

This method is here for testing only and should not be used for any other purpose.

Parameters
widthThe new width.

◆ uniqueID()

String org.lflang.generator.NamedInstance< T extends EObject >.uniqueID ( )

Return an identifier for this instance, which has the form "a_b_c" or "a_b_c_n", where "c" is the name of this instance, "b" is the name of its container, and "a" is the name of its container, stopping at the container in main.

All names are converted to lower case. The suffix n is usually omitted, but it is possible to get name collisions using the above scheme, in which case _n will be an increasing integer until there is no collision. If the length of the root of the name as calculated above (the root is without the _n suffix) is longer than the static variable identifierLengthLimit, then the name will be truncated. The returned name will be the tail of the name calculated above with the prefix ''.

Returns
An identifier for this instance that is guaranteed to be unique within the top-level parent.

Member Data Documentation

◆ definition

T org.lflang.generator.NamedInstance< T extends EObject >.definition
package

The Instantiation AST object from which this was created.

◆ depth

int org.lflang.generator.NamedInstance< T extends EObject >.depth = 0
protected

The depth in the hierarchy of this instance.

This is 0 for main or federated, 1 for the reactors immediately contained, etc.

◆ identifierLengthLimit

int org.lflang.generator.NamedInstance< T extends EObject >.identifierLengthLimit = 40
static

A limit on the number of characters returned by uniqueID.

◆ parent

ReactorInstance org.lflang.generator.NamedInstance< T extends EObject >.parent
package

The reactor instance that creates this instance.

◆ uniqueIDCount

HashMap<String, Integer> org.lflang.generator.NamedInstance< T extends EObject >.uniqueIDCount
package

Map from a name of the form a_b_c to the number of unique IDs with that prefix that have been already assigned.

If none have been assigned, then there is no entry in this map. This map should be non-null only for the main reactor (the top level).

◆ width

int org.lflang.generator.NamedInstance< T extends EObject >.width = 1
package

The width of this instance.

This is 1 for everything except a PortInstance representing a multiport and a ReactorInstance representing a bank.


The documentation for this class was generated from the following file:
  • /Users/runner/work/lingua-franca/lingua-franca/core/src/main/java/org/lflang/generator/NamedInstance.java