mirror of
https://github.com/SquidDev-CC/CC-Tweaked
synced 2026-04-17 12:31:23 +00:00
e85cdacbc5
Added the complete source code to ComputerCraft 1.79 for Minecraft 1.8.9, plus newly written README and LICENSE files for the open source release.
216 lines
8.7 KiB
Java
216 lines
8.7 KiB
Java
/*******************************************************************************
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* Copyright (c) 2009 Luaj.org. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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******************************************************************************/
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package org.luaj.vm2;
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import org.luaj.vm2.lib.MathLib;
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/**
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* Extension of {@link LuaNumber} which can hold a Java int as its value.
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* <p>
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* These instance are not instantiated directly by clients, but indirectly
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* via the static functions {@link LuaValue#valueOf(int)} or {@link LuaValue#valueOf(double)}
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* functions. This ensures that policies regarding pooling of instances are
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* encapsulated.
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* <p>
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* There are no API's specific to LuaInteger that are useful beyond what is already
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* exposed in {@link LuaValue}.
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*
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* @see LuaValue
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* @see LuaNumber
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* @see LuaDouble
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* @see LuaValue#valueOf(int)
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* @see LuaValue#valueOf(double)
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*/
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public class LuaInteger extends LuaNumber {
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private static final LuaInteger[] intValues = new LuaInteger[512];
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static {
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for ( int i=0; i<512; i++ )
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intValues[i] = new LuaInteger(i-256);
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}
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public static LuaInteger valueOf(int i) {
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return i<=255 && i>=-256? intValues[i+256]: new LuaInteger(i);
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};
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// TODO consider moving this to LuaValue
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/** Return a LuaNumber that represents the value provided
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* @param l long value to represent.
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* @return LuaNumber that is eithe LuaInteger or LuaDouble representing l
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* @see LuaValue#valueOf(int)
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* @see LuaValue#valueOf(double)
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*/
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public static LuaNumber valueOf(long l) {
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int i = (int) l;
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return l==i? (i<=255 && i>=-256? intValues[i+256]:
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(LuaNumber) new LuaInteger(i)):
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(LuaNumber) LuaDouble.valueOf(l);
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}
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/** The value being held by this instance. */
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public final int v;
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/**
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* Package protected constructor.
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* @see LuaValue#valueOf(int)
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**/
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LuaInteger(int i) {
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this.v = i;
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}
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public boolean isint() { return true; }
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public boolean isinttype() { return true; }
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public boolean islong() { return true; }
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public byte tobyte() { return (byte) v; }
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public char tochar() { return (char) v; }
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public double todouble() { return v; }
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public float tofloat() { return v; }
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public int toint() { return v; }
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public long tolong() { return v; }
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public short toshort() { return (short) v; }
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public double optdouble(double defval) { return v; }
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public int optint(int defval) { return v; }
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public LuaInteger optinteger(LuaInteger defval) { return this; }
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public long optlong(long defval) { return v; }
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public String tojstring() {
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return Integer.toString(v);
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}
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public LuaString strvalue() {
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return LuaString.valueOf(Integer.toString(v));
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}
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public LuaString optstring(LuaString defval) {
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return LuaString.valueOf(Integer.toString(v));
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}
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public LuaValue tostring() {
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return LuaString.valueOf(Integer.toString(v));
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}
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public String optjstring(String defval) {
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return Integer.toString(v);
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}
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public LuaInteger checkinteger() {
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return this;
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}
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public boolean isstring() {
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return true;
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}
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public int hashCode() {
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return v;
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}
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// unary operators
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public LuaValue neg() { return valueOf(-(long)v); }
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// object equality, used for key comparison
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public boolean equals(Object o) { return o instanceof LuaInteger? ((LuaInteger)o).v == v: false; }
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// equality w/ metatable processing
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public LuaValue eq( LuaValue val ) { return val.raweq(v)? TRUE: FALSE; }
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public boolean eq_b( LuaValue val ) { return val.raweq(v); }
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// equality w/o metatable processing
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public boolean raweq( LuaValue val ) { return val.raweq(v); }
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public boolean raweq( double val ) { return v == val; }
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public boolean raweq( int val ) { return v == val; }
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// arithmetic operators
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public LuaValue add( LuaValue rhs ) { return rhs.add(v); }
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public LuaValue add( double lhs ) { return LuaDouble.valueOf(lhs + v); }
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public LuaValue add( int lhs ) { return LuaInteger.valueOf(lhs + (long)v); }
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public LuaValue sub( LuaValue rhs ) { return rhs.subFrom(v); }
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public LuaValue sub( double rhs ) { return LuaDouble.valueOf(v - rhs); }
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public LuaValue sub( int rhs ) { return LuaDouble.valueOf(v - rhs); }
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public LuaValue subFrom( double lhs ) { return LuaDouble.valueOf(lhs - v); }
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public LuaValue subFrom( int lhs ) { return LuaInteger.valueOf(lhs - (long)v); }
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public LuaValue mul( LuaValue rhs ) { return rhs.mul(v); }
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public LuaValue mul( double lhs ) { return LuaDouble.valueOf(lhs * v); }
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public LuaValue mul( int lhs ) { return LuaInteger.valueOf(lhs * (long)v); }
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public LuaValue pow( LuaValue rhs ) { return rhs.powWith(v); }
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public LuaValue pow( double rhs ) { return MathLib.dpow(v,rhs); }
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public LuaValue pow( int rhs ) { return MathLib.dpow(v,rhs); }
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public LuaValue powWith( double lhs ) { return MathLib.dpow(lhs,v); }
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public LuaValue powWith( int lhs ) { return MathLib.dpow(lhs,v); }
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public LuaValue div( LuaValue rhs ) { return rhs.divInto(v); }
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public LuaValue div( double rhs ) { return LuaDouble.ddiv(v,rhs); }
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public LuaValue div( int rhs ) { return LuaDouble.ddiv(v,rhs); }
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public LuaValue divInto( double lhs ) { return LuaDouble.ddiv(lhs,v); }
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public LuaValue mod( LuaValue rhs ) { return rhs.modFrom(v); }
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public LuaValue mod( double rhs ) { return LuaDouble.dmod(v,rhs); }
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public LuaValue mod( int rhs ) { return LuaDouble.dmod(v,rhs); }
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public LuaValue modFrom( double lhs ) { return LuaDouble.dmod(lhs,v); }
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// relational operators
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public LuaValue lt( LuaValue rhs ) { return rhs.gt_b(v)? TRUE: FALSE; }
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public LuaValue lt( double rhs ) { return v < rhs? TRUE: FALSE; }
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public LuaValue lt( int rhs ) { return v < rhs? TRUE: FALSE; }
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public boolean lt_b( LuaValue rhs ) { return rhs.gt_b(v); }
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public boolean lt_b( int rhs ) { return v < rhs; }
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public boolean lt_b( double rhs ) { return v < rhs; }
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public LuaValue lteq( LuaValue rhs ) { return rhs.gteq_b(v)? TRUE: FALSE; }
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public LuaValue lteq( double rhs ) { return v <= rhs? TRUE: FALSE; }
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public LuaValue lteq( int rhs ) { return v <= rhs? TRUE: FALSE; }
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public boolean lteq_b( LuaValue rhs ) { return rhs.gteq_b(v); }
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public boolean lteq_b( int rhs ) { return v <= rhs; }
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public boolean lteq_b( double rhs ) { return v <= rhs; }
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public LuaValue gt( LuaValue rhs ) { return rhs.lt_b(v)? TRUE: FALSE; }
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public LuaValue gt( double rhs ) { return v > rhs? TRUE: FALSE; }
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public LuaValue gt( int rhs ) { return v > rhs? TRUE: FALSE; }
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public boolean gt_b( LuaValue rhs ) { return rhs.lt_b(v); }
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public boolean gt_b( int rhs ) { return v > rhs; }
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public boolean gt_b( double rhs ) { return v > rhs; }
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public LuaValue gteq( LuaValue rhs ) { return rhs.lteq_b(v)? TRUE: FALSE; }
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public LuaValue gteq( double rhs ) { return v >= rhs? TRUE: FALSE; }
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public LuaValue gteq( int rhs ) { return v >= rhs? TRUE: FALSE; }
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public boolean gteq_b( LuaValue rhs ) { return rhs.lteq_b(v); }
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public boolean gteq_b( int rhs ) { return v >= rhs; }
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public boolean gteq_b( double rhs ) { return v >= rhs; }
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// string comparison
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public int strcmp( LuaString rhs ) { typerror("attempt to compare number with string"); return 0; }
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public int checkint() {
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return v;
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}
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public long checklong() {
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return v;
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}
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public double checkdouble() {
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return v;
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}
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public String checkjstring() {
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return String.valueOf(v);
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}
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public LuaString checkstring() {
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return valueOf( String.valueOf(v) );
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}
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}
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