edu.illinois.cs.cogcomp.lbjava.IR

Class ConstraintInvocation

java.lang.Object

edu.illinois.cs.cogcomp.lbjava.IR.ASTNode

edu.illinois.cs.cogcomp.lbjava.IR.ConstraintExpression

edu.illinois.cs.cogcomp.lbjava.IR.ConstraintInvocation

public class ConstraintInvocation
extends ConstraintExpression

A constraint may be invoked from within another constraint using the @ operator. This class is essentially a ConstraintExpression wrapper for a MethodInvocation.

Author:

Nick Rizzolo

Field Summary

Fields

Modifier and Type	Field and Description
MethodInvocation	invocation (¬ø) The invocation.
boolean	invocationIsQuantified Filled in by SemanticAnalysis, this flag is set if invocation contains any quantified variables.

Fields inherited from class edu.illinois.cs.cogcomp.lbjava.IR.ConstraintExpression

parenthesized

Fields inherited from class edu.illinois.cs.cogcomp.lbjava.IR.ASTNode

byteOffset, line, nodeID, symbolTable

Constructor Summary

Constructors

Constructor and Description
ConstraintInvocation(int line, int byteOffset, MethodInvocation m) Full constructor.
ConstraintInvocation(TokenValue t, MethodInvocation m) Parser's constructor.

Method Summary

Modifier and Type	Method and Description
Object	clone() Creates a new object with the same primitive data, and recursively creates new member data objects as well.
boolean	containsQuantifiedVariable() Determines if there are any quantified variables in this expression.
HashSet	getVariableTypes() Returns a set of Arguments storing the name and type of each variable that is a subexpression of this expression.
ASTNodeIterator	iterator() Returns an iterator used to successively access the children of this node.
void	runPass(Pass pass) Ensures that the correct run() method is called for this type of node.
void	write(StringBuffer buffer) Writes a string representation of this ASTNode to the specified buffer.

Methods inherited from class edu.illinois.cs.cogcomp.lbjava.IR.ASTNode

toString

Methods inherited from class java.lang.Object

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

Field Detail

invocation

public MethodInvocation invocation

(¬ø) The invocation.

invocationIsQuantified

public boolean invocationIsQuantified

Filled in by SemanticAnalysis, this flag is set if invocation contains any quantified variables.

Constructor Detail

ConstraintInvocation

public ConstraintInvocation(int line,
                            int byteOffset,
                            MethodInvocation m)

Full constructor.

Parameters:

line - The line on which the source code represented by this node is found.

byteOffset - The byte offset from the beginning of the source file at which the source code represented by this node is found.

m - The invocation.

ConstraintInvocation

public ConstraintInvocation(TokenValue t,
                            MethodInvocation m)

Parser's constructor. Line and byte offset information is taken from the token.

Parameters:

t - The token providing line and byte offset information.

m - The invocation.

Method Detail

getVariableTypes

public HashSet getVariableTypes()

Returns a set of Arguments storing the name and type of each variable that is a subexpression of this expression. This method cannot be run before SemanticAnalysis runs.

Overrides:

getVariableTypes in class ConstraintExpression

containsQuantifiedVariable

public boolean containsQuantifiedVariable()

Determines if there are any quantified variables in this expression. This method cannot be run before SemanticAnalysis runs.

Overrides:

containsQuantifiedVariable in class ConstraintExpression

iterator

public ASTNodeIterator iterator()

Returns an iterator used to successively access the children of this node.

Specified by:

iterator in class ASTNode

Returns:

An iterator used to successively access the children of this node.

clone

public Object clone()

Creates a new object with the same primitive data, and recursively creates new member data objects as well.

Overrides:

clone in class ASTNode

Returns:

The clone node.

runPass

public void runPass(Pass pass)

Ensures that the correct run() method is called for this type of node.

Specified by:

runPass in class ASTNode

Parameters:

pass - The pass whose run() method should be called.

write

public void write(StringBuffer buffer)

Writes a string representation of this ASTNode to the specified buffer. The representation written is parsable by the LBJava compiler, but not very readable.

Specified by:

write in class ASTNode

Parameters:

buffer - The buffer to write to.