soot.JastAddJ.NullLiteral Maven / Gradle / Ivy
/* This file was generated with JastAdd2 (http://jastadd.org) version R20130212 (r1031) */
package soot.JastAddJ;
import java.util.HashSet;
import java.io.File;
import java.util.*;
import beaver.*;
import java.util.ArrayList;
import java.util.zip.*;
import java.io.*;
import java.io.FileNotFoundException;
import java.util.Collection;
import soot.*;
import soot.util.*;
import soot.jimple.*;
import soot.coffi.ClassFile;
import soot.coffi.method_info;
import soot.coffi.CONSTANT_Utf8_info;
import soot.tagkit.SourceFileTag;
import soot.coffi.CoffiMethodSource;
/**
* Java null literal.
* @production NullLiteral : {@link Literal};
* @ast node
* @declaredat /Users/eric/Documents/workspaces/clara-soot/JastAddJ/Java7Frontend/Literals.ast:42
*/
public class NullLiteral extends Literal implements Cloneable {
/**
* @apilevel low-level
*/
public void flushCache() {
super.flushCache();
type_computed = false;
type_value = null;
}
/**
* @apilevel internal
*/
public void flushCollectionCache() {
super.flushCollectionCache();
}
/**
* @apilevel internal
*/
@SuppressWarnings({"unchecked", "cast"})
public NullLiteral clone() throws CloneNotSupportedException {
NullLiteral node = (NullLiteral)super.clone();
node.type_computed = false;
node.type_value = null;
node.in$Circle(false);
node.is$Final(false);
return node;
}
/**
* @apilevel internal
*/
@SuppressWarnings({"unchecked", "cast"})
public NullLiteral copy() {
try {
NullLiteral node = (NullLiteral) clone();
node.parent = null;
if(children != null)
node.children = (ASTNode[]) children.clone();
return node;
} catch (CloneNotSupportedException e) {
throw new Error("Error: clone not supported for " +
getClass().getName());
}
}
/**
* Create a deep copy of the AST subtree at this node.
* The copy is dangling, i.e. has no parent.
* @return dangling copy of the subtree at this node
* @apilevel low-level
*/
@SuppressWarnings({"unchecked", "cast"})
public NullLiteral fullCopy() {
NullLiteral tree = (NullLiteral) copy();
if (children != null) {
for (int i = 0; i < children.length; ++i) {
ASTNode child = (ASTNode) children[i];
if(child != null) {
child = child.fullCopy();
tree.setChild(child, i);
}
}
}
return tree;
}
/**
* @ast method
* @aspect Expressions
* @declaredat /Users/eric/Documents/workspaces/clara-soot/JastAddExtensions/JimpleBackend/Expressions.jrag:35
*/
public soot.Value eval(Body b) {
return soot.jimple.NullConstant.v();
}
/**
* @ast method
*
*/
public NullLiteral() {
super();
}
/**
* Initializes the child array to the correct size.
* Initializes List and Opt nta children.
* @apilevel internal
* @ast method
* @ast method
*
*/
public void init$Children() {
}
/**
* @ast method
*
*/
public NullLiteral(String p0) {
setLITERAL(p0);
}
/**
* @ast method
*
*/
public NullLiteral(beaver.Symbol p0) {
setLITERAL(p0);
}
/**
* @apilevel low-level
* @ast method
*
*/
protected int numChildren() {
return 0;
}
/**
* @apilevel internal
* @ast method
*
*/
public boolean mayHaveRewrite() {
return false;
}
/**
* Replaces the lexeme LITERAL.
* @param value The new value for the lexeme LITERAL.
* @apilevel high-level
* @ast method
*
*/
public void setLITERAL(String value) {
tokenString_LITERAL = value;
}
/**
* JastAdd-internal setter for lexeme LITERAL using the Beaver parser.
* @apilevel internal
* @ast method
*
*/
public void setLITERAL(beaver.Symbol symbol) {
if(symbol.value != null && !(symbol.value instanceof String))
throw new UnsupportedOperationException("setLITERAL is only valid for String lexemes");
tokenString_LITERAL = (String)symbol.value;
LITERALstart = symbol.getStart();
LITERALend = symbol.getEnd();
}
/**
* Retrieves the value for the lexeme LITERAL.
* @return The value for the lexeme LITERAL.
* @apilevel high-level
* @ast method
*
*/
public String getLITERAL() {
return tokenString_LITERAL != null ? tokenString_LITERAL : "";
}
/**
* @attribute syn
* @aspect ConstantExpression
* @declaredat /Users/eric/Documents/workspaces/clara-soot/JastAddJ/Java7Frontend/ConstantExpression.jrag:336
*/
public boolean isConstant() {
ASTNode$State state = state();
try { return false; }
finally {
}
}
/**
* @apilevel internal
*/
protected boolean type_computed = false;
/**
* @apilevel internal
*/
protected TypeDecl type_value;
/**
* @attribute syn
* @aspect TypeAnalysis
* @declaredat /Users/eric/Documents/workspaces/clara-soot/JastAddJ/Java1.4Frontend/TypeAnalysis.jrag:307
*/
@SuppressWarnings({"unchecked", "cast"})
public TypeDecl type() {
if(type_computed) {
return type_value;
}
ASTNode$State state = state();
int num = state.boundariesCrossed;
boolean isFinal = this.is$Final();
type_value = type_compute();
if(isFinal && num == state().boundariesCrossed) type_computed = true;
return type_value;
}
/**
* @apilevel internal
*/
private TypeDecl type_compute() { return typeNull(); }
/**
* @apilevel internal
*/
public ASTNode rewriteTo() {
return super.rewriteTo();
}
}