xtc.parser
Class Action

java.lang.Object
  xtc.tree.Node
      xtc.parser.Element
          xtc.parser.Action

All Implemented Interfaces:

java.lang.Iterable<java.lang.Object>, Locatable

public class Action
extends Element

A semantic action.

Version:

$Revision: 1.22 $

Author:

Robert Grimm

Nested Class Summary

Nested classes/interfaces inherited from class xtc.parser.Element

Element.Tag

Field Summary

java.util.List<java.lang.String>	code The list of source lines for the semantic action.
java.util.List<java.lang.Integer>	indent The list of indentation levels, one per line of code.

Constructor Summary

Action(java.util.List<java.lang.String> code, java.util.List<java.lang.Integer> indent)
Create a new action with the specified code.

Action(java.lang.String s, java.util.List<java.lang.Integer> indent)
Create a new action with the specified code.

Method Summary

void	add(Action a) Add the specified action to this action.
boolean	equals(java.lang.Object o)
int	hashCode()
boolean	setsValue() Determine whether this action sets the semantic value.
Element.Tag	tag() Get this element's tag.

Methods inherited from class xtc.tree.Node

add, add, addAll, addAll, addAll, addAll, addAllTo, addNode, contains, get, getBoolean, getBooleanProperty, getGeneric, getList, getLocation, getName, getNode, getProperty, getString, getStringProperty, getTokenText, hasLocation, hasName, hasProperty, hasTraversal, hasVariable, indexOf, isAnnotation, isEmpty, isGeneric, isList, isToken, iterator, lastIndexOf, properties, remove, removeProperty, set, setLocation, setLocation, setProperty, size, strip, toAnnotation, toList, toString, toToken, write

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

code

public final java.util.List<java.lang.String> code

The list of source lines for the semantic action. Note that each source line is a string without the terminating end-of-line character(s).

indent

public final java.util.List<java.lang.Integer> indent

The list of indentation levels, one per line of code. Note that this list must be at least as long as the list of source lines.

Constructor Detail

Action

public Action(java.lang.String s,
              java.util.List<java.lang.Integer> indent)

Create a new action with the specified code. The specified string is broken up into individual lines, removing all end-of-line characters along the way.

Parameters:

s - The code as a string.

indent - The list of indentation levels, one per line in the specified string.

Throws:

java.lang.IllegalArgumentException - Signals that indent is too short.

Action

public Action(java.util.List<java.lang.String> code,
              java.util.List<java.lang.Integer> indent)

Create a new action with the specified code.

Parameters:

code - The code as a list source lines.

indent - The corresponding indentation levels.

Throws:

java.lang.IllegalArgumentException - Signals that the number of code lines is inconsistent with the number of indentation levels.

Method Detail

tag

public Element.Tag tag()

Description copied from class: Element

Get this element's tag.

Specified by:

tag in class Element

Returns:

The tag.

add

public void add(Action a)

Add the specified action to this action.

Parameters:

a - The action to add.

setsValue

public boolean setsValue()

Determine whether this action sets the semantic value. This method implements a conservative approximation by searching for occurrences of the corresponding variable name.

Returns:

true if this action sets the semantic value.

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object