com.microsoft.z3.Symbol Maven / Gradle / Ivy
/**
Copyright (c) 2012-2014 Microsoft Corporation
Module Name:
Symbol.java
Abstract:
Author:
@author Christoph Wintersteiger (cwinter) 2012-03-15
Notes:
**/
package com.microsoft.z3;
import com.microsoft.z3.enumerations.Z3_symbol_kind;
/**
* Symbols are used to name several term and type constructors.
**/
public class Symbol extends Z3Object {
/**
* The kind of the symbol (int or string)
**/
protected Z3_symbol_kind getKind()
{
return Z3_symbol_kind.fromInt(Native.getSymbolKind(getContext().nCtx(),
getNativeObject()));
}
/**
* Indicates whether the symbol is of Int kind
**/
public boolean isIntSymbol()
{
return getKind() == Z3_symbol_kind.Z3_INT_SYMBOL;
}
/**
* Indicates whether the symbol is of string kind.
**/
public boolean isStringSymbol()
{
return getKind() == Z3_symbol_kind.Z3_STRING_SYMBOL;
}
@Override
public boolean equals(Object o)
{
if (o == this) return true;
if (!(o instanceof Symbol)) return false;
Symbol other = (Symbol) o;
return this.getNativeObject() == other.getNativeObject();
}
/**
* A string representation of the symbol.
**/
@Override
public String toString() {
if (isIntSymbol()) {
return Integer.toString(((IntSymbol) this).getInt());
} else if (isStringSymbol()) {
return ((StringSymbol) this).getString();
} else {
return "Z3Exception: Unknown symbol kind encountered.";
}
}
/**
* Symbol constructor
**/
protected Symbol(Context ctx, long obj)
{
super(ctx, obj);
}
@Override
void incRef() {
// Symbol does not require tracking.
}
@Override
void addToReferenceQueue() {
// Symbol does not require tracking.
}
static Symbol create(Context ctx, long obj)
{
switch (Z3_symbol_kind.fromInt(Native.getSymbolKind(ctx.nCtx(), obj)))
{
case Z3_INT_SYMBOL:
return new IntSymbol(ctx, obj);
case Z3_STRING_SYMBOL:
return new StringSymbol(ctx, obj);
default:
throw new Z3Exception("Unknown symbol kind encountered");
}
}
}