From b1078581d4730d4944180a739fcce51a39259112 Mon Sep 17 00:00:00 2001
From: Marcin Chrzanowski <marcin.j.chrzanowski@gmail.com>
Date: Sun, 3 Nov 2019 12:55:03 +0100
Subject: Initialize gradle project

---
 src/pl/edu/mimuw/cloudatlas/model/ValueNull.java | 155 -----------------------
 1 file changed, 155 deletions(-)
 delete mode 100644 src/pl/edu/mimuw/cloudatlas/model/ValueNull.java

(limited to 'src/pl/edu/mimuw/cloudatlas/model/ValueNull.java')

diff --git a/src/pl/edu/mimuw/cloudatlas/model/ValueNull.java b/src/pl/edu/mimuw/cloudatlas/model/ValueNull.java
deleted file mode 100644
index c628beb..0000000
--- a/src/pl/edu/mimuw/cloudatlas/model/ValueNull.java
+++ /dev/null
@@ -1,155 +0,0 @@
-/**
- * Copyright (c) 2014, University of Warsaw
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without modification, are permitted
- * provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice, this list of
- * conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
- * conditions and the following disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
- * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
- * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-package pl.edu.mimuw.cloudatlas.model;
-
-import pl.edu.mimuw.cloudatlas.model.Value;
-import pl.edu.mimuw.cloudatlas.model.ValueNull;
-
-/**
- * A special null value of an unknown type. This class is a singleton.
- *
- * @see TypePrimitve#NULL
- * @see Type#isCompatible(Value)
- */
-public class ValueNull extends Value {
-    private static ValueNull instance = null;
-
-    private ValueNull() {}
-
-    /**
-     * Gets a singleton instance of the <code>ValueNull</code> class. Every call to this method returns the same
-     * reference.
-     *
-     * @return an instance of <code>ValueNull</code>
-     */
-    public static ValueNull getInstance() {
-        if(instance == null)
-            instance = new ValueNull();
-        return instance;
-    }
-
-    @Override
-    public Value getDefaultValue() {
-        return instance;
-    }
-
-    @Override
-    public Value convertTo(Type type) {
-        switch(type.getPrimaryType()) {
-            case STRING:
-                return ValueString.NULL_STRING;
-            default:
-                return this;
-        }
-    }
-
-    @Override
-    public Type getType() {
-        return TypePrimitive.NULL;
-    }
-
-    @Override
-    public boolean isNull() {
-        return true;
-    }
-
-    @Override
-    public Value isEqual(Value value) {
-        return new ValueBoolean(isNull() && value.isNull());
-    }
-
-    @Override
-    public Value isLowerThan(Value value) {
-        if(value == getInstance())
-            return this;
-        return value.isLowerThan(this);
-    }
-
-    @Override
-    public Value addValue(Value value) {
-        if(value == getInstance())
-            return this;
-        return value.addValue(this);
-    }
-
-    @Override
-    public Value subtract(Value value) {
-        if(value == getInstance())
-            return this;
-        return value.subtract(this);
-    }
-
-    @Override
-    public Value multiply(Value value) {
-        if(value == getInstance())
-            return this;
-        return value.multiply(this);
-    }
-
-    @Override
-    public Value divide(Value value) {
-        if(value == getInstance())
-            return this;
-        return value.divide(this);
-    }
-
-    @Override
-    public Value modulo(Value value) {
-        if(value == getInstance())
-            return this;
-        return value.modulo(this);
-    }
-
-    @Override
-    public Value and(Value value) {
-        if(value == getInstance())
-            return this;
-        return value.and(this);
-    }
-
-    @Override
-    public Value or(Value value) {
-        if(value == getInstance())
-            return this;
-        return value.or(this);
-    }
-
-    @Override
-    public Value regExpr(Value value) {
-        if(value == getInstance())
-            return this;
-        return value.regExpr(this);
-    }
-
-    @Override
-    public Value negate() {
-        return this;
-    }
-
-    @Override
-    public Value valueSize() {
-        return this;
-    }
-}
-- 
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