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-rw-r--r--lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangTuple.java250
1 files changed, 123 insertions, 127 deletions
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangTuple.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangTuple.java
index dffaa530cd..af2559e62e 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangTuple.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangTuple.java
@@ -1,28 +1,27 @@
/*
* %CopyrightBegin%
- *
+ *
* Copyright Ericsson AB 2000-2013. All Rights Reserved.
- *
+ *
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
- *
+ *
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
- *
+ *
* %CopyrightEnd%
*/
package com.ericsson.otp.erlang;
-
/**
* Provides a Java representation of Erlang tuples. Tuples are created from one
* or more arbitrary Erlang terms.
- *
+ *
* <p>
* The arity of the tuple is the number of elements it contains. Elements are
* indexed from 0 to (arity-1) and can be retrieved individually by using the
@@ -38,222 +37,219 @@ public class OtpErlangTuple extends OtpErlangObject {
/**
* Create a unary tuple containing the given element.
- *
+ *
* @param elem
- * the element to create the tuple from.
- *
+ * the element to create the tuple from.
+ *
* @exception java.lang.IllegalArgumentException
- * if the element is null.
+ * if the element is null.
*/
public OtpErlangTuple(final OtpErlangObject elem) {
- if (elem == null) {
- throw new java.lang.IllegalArgumentException(
- "Tuple element cannot be null");
- }
- elems = new OtpErlangObject[] { elem };
+ if (elem == null) {
+ throw new java.lang.IllegalArgumentException(
+ "Tuple element cannot be null");
+ }
+ elems = new OtpErlangObject[] { elem };
}
/**
* Create a tuple from an array of terms.
- *
+ *
* @param elems
- * the array of terms to create the tuple from.
- *
+ * the array of terms to create the tuple from.
+ *
* @exception java.lang.IllegalArgumentException
- * if the array is empty (null) or contains null
- * elements.
+ * if the array is empty (null) or contains null elements.
*/
public OtpErlangTuple(final OtpErlangObject[] elems) {
- this(elems, 0, elems.length);
+ this(elems, 0, elems.length);
}
/**
* Create a tuple from an array of terms.
- *
+ *
* @param elems
- * the array of terms to create the tuple from.
+ * the array of terms to create the tuple from.
* @param start
- * the offset of the first term to insert.
+ * the offset of the first term to insert.
* @param count
- * the number of terms to insert.
- *
+ * the number of terms to insert.
+ *
* @exception java.lang.IllegalArgumentException
- * if the array is empty (null) or contains null
- * elements.
+ * if the array is empty (null) or contains null elements.
*/
public OtpErlangTuple(final OtpErlangObject[] elems, final int start,
- final int count) {
- if (elems == null) {
- throw new java.lang.IllegalArgumentException(
- "Tuple content can't be null");
- } else if (count < 1) {
- this.elems = NO_ELEMENTS;
- } else {
- this.elems = new OtpErlangObject[count];
- for (int i = 0; i < count; i++) {
- if (elems[start + i] != null) {
- this.elems[i] = elems[start + i];
- } else {
- throw new java.lang.IllegalArgumentException(
- "Tuple element cannot be null (element"
- + (start + i) + ")");
- }
- }
- }
+ final int count) {
+ if (elems == null) {
+ throw new java.lang.IllegalArgumentException(
+ "Tuple content can't be null");
+ } else if (count < 1) {
+ this.elems = NO_ELEMENTS;
+ } else {
+ this.elems = new OtpErlangObject[count];
+ for (int i = 0; i < count; i++) {
+ if (elems[start + i] != null) {
+ this.elems[i] = elems[start + i];
+ } else {
+ throw new java.lang.IllegalArgumentException(
+ "Tuple element cannot be null (element"
+ + (start + i) + ")");
+ }
+ }
+ }
}
/**
* Create a tuple from a stream containing an tuple encoded in Erlang
* external format.
- *
+ *
* @param buf
- * the stream containing the encoded tuple.
- *
+ * the stream containing the encoded tuple.
+ *
* @exception OtpErlangDecodeException
- * if the buffer does not contain a valid external
- * representation of an Erlang tuple.
+ * if the buffer does not contain a valid external
+ * representation of an Erlang tuple.
*/
public OtpErlangTuple(final OtpInputStream buf)
- throws OtpErlangDecodeException {
- final int arity = buf.read_tuple_head();
-
- if (arity > 0) {
- elems = new OtpErlangObject[arity];
-
- for (int i = 0; i < arity; i++) {
- elems[i] = buf.read_any();
- }
- } else {
- elems = NO_ELEMENTS;
- }
+ throws OtpErlangDecodeException {
+ final int arity = buf.read_tuple_head();
+
+ if (arity > 0) {
+ elems = new OtpErlangObject[arity];
+
+ for (int i = 0; i < arity; i++) {
+ elems[i] = buf.read_any();
+ }
+ } else {
+ elems = NO_ELEMENTS;
+ }
}
/**
* Get the arity of the tuple.
- *
+ *
* @return the number of elements contained in the tuple.
*/
public int arity() {
- return elems.length;
+ return elems.length;
}
/**
* Get the specified element from the tuple.
- *
+ *
* @param i
- * the index of the requested element. Tuple elements are
- * numbered as array elements, starting at 0.
- *
+ * the index of the requested element. Tuple elements are
+ * numbered as array elements, starting at 0.
+ *
* @return the requested element, of null if i is not a valid element index.
*/
public OtpErlangObject elementAt(final int i) {
- if (i >= arity() || i < 0) {
- return null;
- }
- return elems[i];
+ if (i >= arity() || i < 0) {
+ return null;
+ }
+ return elems[i];
}
/**
* Get all the elements from the tuple as an array.
- *
+ *
* @return an array containing all of the tuple's elements.
*/
public OtpErlangObject[] elements() {
- final OtpErlangObject[] res = new OtpErlangObject[arity()];
- System.arraycopy(elems, 0, res, 0, res.length);
- return res;
+ final OtpErlangObject[] res = new OtpErlangObject[arity()];
+ System.arraycopy(elems, 0, res, 0, res.length);
+ return res;
}
/**
* Get the string representation of the tuple.
- *
+ *
* @return the string representation of the tuple.
*/
@Override
public String toString() {
- int i;
- final StringBuffer s = new StringBuffer();
- final int arity = elems.length;
+ int i;
+ final StringBuffer s = new StringBuffer();
+ final int arity = elems.length;
- s.append("{");
+ s.append("{");
- for (i = 0; i < arity; i++) {
- if (i > 0) {
- s.append(",");
- }
- s.append(elems[i].toString());
- }
+ for (i = 0; i < arity; i++) {
+ if (i > 0) {
+ s.append(",");
+ }
+ s.append(elems[i].toString());
+ }
- s.append("}");
+ s.append("}");
- return s.toString();
+ return s.toString();
}
/**
* Convert this tuple to the equivalent Erlang external representation.
- *
+ *
* @param buf
- * an output stream to which the encoded tuple should be
- * written.
+ * an output stream to which the encoded tuple should be written.
*/
@Override
public void encode(final OtpOutputStream buf) {
- final int arity = elems.length;
+ final int arity = elems.length;
- buf.write_tuple_head(arity);
+ buf.write_tuple_head(arity);
- for (int i = 0; i < arity; i++) {
- buf.write_any(elems[i]);
- }
+ for (int i = 0; i < arity; i++) {
+ buf.write_any(elems[i]);
+ }
}
/**
* Determine if two tuples are equal. Tuples are equal if they have the same
* arity and all of the elements are equal.
- *
+ *
* @param o
- * the tuple to compare to.
- *
+ * the tuple to compare to.
+ *
* @return true if the tuples have the same arity and all the elements are
* equal.
*/
@Override
public boolean equals(final Object o) {
- if (!(o instanceof OtpErlangTuple)) {
- return false;
- }
+ if (!(o instanceof OtpErlangTuple)) {
+ return false;
+ }
- final OtpErlangTuple t = (OtpErlangTuple) o;
- final int a = arity();
+ final OtpErlangTuple t = (OtpErlangTuple) o;
+ final int a = arity();
- if (a != t.arity()) {
- return false;
- }
+ if (a != t.arity()) {
+ return false;
+ }
- for (int i = 0; i < a; i++) {
- if (!elems[i].equals(t.elems[i])) {
- return false; // early exit
- }
- }
+ for (int i = 0; i < a; i++) {
+ if (!elems[i].equals(t.elems[i])) {
+ return false; // early exit
+ }
+ }
- return true;
+ return true;
}
-
+
@Override
protected int doHashCode() {
- OtpErlangObject.Hash hash = new OtpErlangObject.Hash(9);
- final int a = arity();
- hash.combine(a);
- for (int i = 0; i < a; i++) {
- hash.combine(elems[i].hashCode());
- }
- return hash.valueOf();
+ final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(9);
+ final int a = arity();
+ hash.combine(a);
+ for (int i = 0; i < a; i++) {
+ hash.combine(elems[i].hashCode());
+ }
+ return hash.valueOf();
}
-
+
@Override
public Object clone() {
- final OtpErlangTuple newTuple = (OtpErlangTuple) super.clone();
- newTuple.elems = elems.clone();
- return newTuple;
+ final OtpErlangTuple newTuple = (OtpErlangTuple) super.clone();
+ newTuple.elems = elems.clone();
+ return newTuple;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-01 12:52:57 +0000