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authorZandra Hird <[email protected]>2015-04-29 14:41:39 +0200
committerZandra Hird <[email protected]>2015-04-29 14:41:39 +0200
commitde6ef63b143557558436b5c0213030a27d78da0d (patch)
treed84847fe669fd707d1e3039507906908834f6513 /lib
parent65cd6574a37af1dfcc01fc4cc9681b4b758f1284 (diff)
parent2fdc3d313485a76b6acf12154b8f3bd3e1ceb2ca (diff)
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Merge branch 'x0id/jinterface_generic_match'
* x0id/jinterface_generic_match: jinterface: match/bind added to OtpErlangObject fix typo error from recent merge OTP-12691
Diffstat (limited to 'lib')
-rw-r--r--lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangList.java48
-rw-r--r--lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java207
-rw-r--r--lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangObject.java26
-rw-r--r--lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangTuple.java29
-rw-r--r--lib/jinterface/test/jinterface_SUITE.erl18
-rw-r--r--lib/jinterface/test/jinterface_SUITE_data/CoreMatchBind.java584
-rw-r--r--lib/jinterface/test/jinterface_SUITE_data/Makefile.src3
7 files changed, 839 insertions, 76 deletions
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangList.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangList.java
index 990e50ddcd..268261ec10 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangList.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangList.java
@@ -297,6 +297,54 @@ public class OtpErlangList extends OtpErlangObject implements
return getLastTail().equals(l.getLastTail());
}
+ @Override
+ public <T> boolean match(final OtpErlangObject term, final T bindings) {
+ if (!(term instanceof OtpErlangList)) {
+ return false;
+ }
+ final OtpErlangList that = (OtpErlangList) term;
+
+ final int thisArity = this.arity();
+ final int thatArity = that.arity();
+ final OtpErlangObject thisTail = this.getLastTail();
+ final OtpErlangObject thatTail = that.getLastTail();
+
+ if (thisTail == null) {
+ if (thisArity != thatArity || thatTail != null) {
+ return false;
+ }
+ } else {
+ if (thisArity > thatArity) {
+ return false;
+ }
+ }
+ for (int i = 0; i < thisArity; i++) {
+ if (!elementAt(i).match(that.elementAt(i), bindings)) {
+ return false;
+ }
+ }
+ if (thisTail == null) {
+ return true;
+ }
+ return thisTail.match(that.getNthTail(thisArity), bindings);
+ }
+
+ @Override
+ public <T> OtpErlangObject bind(final T binds) throws OtpErlangException {
+ final OtpErlangList list = (OtpErlangList) this.clone();
+
+ final int a = list.elems.length;
+ for (int i = 0; i < a; i++) {
+ list.elems[i] = list.elems[i].bind(binds);
+ }
+
+ if (list.lastTail != null) {
+ list.lastTail = list.lastTail.bind(binds);
+ }
+
+ return list;
+ }
+
public OtpErlangObject getLastTail() {
return lastTail;
}
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java
index 7f2621923a..a8cd9d5392 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangMap.java
@@ -18,6 +18,11 @@
*/
package com.ericsson.otp.erlang;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+
/**
* Provides a Java representation of Erlang maps. Maps are created from one or
* more arbitrary Erlang terms.
@@ -31,10 +36,14 @@ public class OtpErlangMap extends OtpErlangObject {
// don't change this!
private static final long serialVersionUID = -6410770117696198497L;
- private static final OtpErlangObject[] NO_ELEMENTS = new OtpErlangObject[0];
+ private HashMap<OtpErlangObject, OtpErlangObject> map;
- private OtpErlangObject[] keys = NO_ELEMENTS;
- private OtpErlangObject[] values = NO_ELEMENTS;
+ /**
+ * Create an empty map.
+ */
+ public OtpErlangMap() {
+ map = new HashMap<OtpErlangObject, OtpErlangObject>();
+ }
/**
* Create a map from an array of keys and an array of values.
@@ -82,30 +91,20 @@ public class OtpErlangMap extends OtpErlangObject {
} else if (kcount != vcount) {
throw new java.lang.IllegalArgumentException(
"Map keys and values must have same arity");
- } else if (vcount < 1) {
- this.keys = NO_ELEMENTS;
- this.values = NO_ELEMENTS;
- } else {
- this.keys = new OtpErlangObject[vcount];
- for (int i = 0; i < vcount; i++) {
- if (keys[kstart + i] != null) {
- this.keys[i] = keys[kstart + i];
- } else {
- throw new java.lang.IllegalArgumentException(
- "Map key cannot be null (element" + (kstart + i)
- + ")");
- }
+ }
+ map = new HashMap<OtpErlangObject, OtpErlangObject>(vcount);
+ OtpErlangObject key, val;
+ for (int i = 0; i < vcount; i++) {
+ if ((key = keys[kstart + i]) == null) {
+ throw new java.lang.IllegalArgumentException(
+ "Map key cannot be null (element" + (kstart + i) + ")");
}
- this.values = new OtpErlangObject[vcount];
- for (int i = 0; i < vcount; i++) {
- if (values[vstart + i] != null) {
- this.values[i] = values[vstart + i];
- } else {
- throw new java.lang.IllegalArgumentException(
- "Map value cannot be null (element" + (vstart + i)
- + ")");
- }
+ if ((val = values[vstart + i]) == null) {
+ throw new java.lang.IllegalArgumentException(
+ "Map value cannot be null (element" + (vstart + i)
+ + ")");
}
+ put(key, val);
}
}
@@ -125,16 +124,15 @@ public class OtpErlangMap extends OtpErlangObject {
final int arity = buf.read_map_head();
if (arity > 0) {
- keys = new OtpErlangObject[arity];
- values = new OtpErlangObject[arity];
-
+ map = new HashMap<OtpErlangObject, OtpErlangObject>(arity);
for (int i = 0; i < arity; i++) {
- keys[i] = buf.read_any();
- values[i] = buf.read_any();
+ OtpErlangObject key, val;
+ key = buf.read_any();
+ val = buf.read_any();
+ put(key, val);
}
} else {
- keys = NO_ELEMENTS;
- values = NO_ELEMENTS;
+ map = new HashMap<OtpErlangObject, OtpErlangObject>();
}
}
@@ -144,7 +142,33 @@ public class OtpErlangMap extends OtpErlangObject {
* @return the number of elements contained in the map.
*/
public int arity() {
- return keys.length;
+ return map.size();
+ }
+
+ /**
+ * Put value corresponding to key into the map. For detailed behavior
+ * description see {@link Map#put(Object, Object)}.
+ *
+ * @param key
+ * key to associate value with
+ * @param value
+ * value to associate with key
+ * @return previous value associated with key or null
+ */
+ public OtpErlangObject put(final OtpErlangObject key,
+ final OtpErlangObject value) {
+ return map.put(key, value);
+ }
+
+ /**
+ * removes mapping for the key if present.
+ *
+ * @param key
+ * key for which mapping is to be remove
+ * @return value associated with key or null
+ */
+ public OtpErlangObject remove(final OtpErlangObject key) {
+ return map.remove(key);
}
/**
@@ -156,15 +180,7 @@ public class OtpErlangMap extends OtpErlangObject {
* @return the requested value, of null if key is not a valid key.
*/
public OtpErlangObject get(final OtpErlangObject key) {
- if (key == null) {
- return null;
- }
- for (int i = 0; i < keys.length; i++) {
- if (key.equals(keys[i])) {
- return values[i];
- }
- }
- return null;
+ return map.get(key);
}
/**
@@ -173,9 +189,7 @@ public class OtpErlangMap extends OtpErlangObject {
* @return an array containing all of the map's keys.
*/
public OtpErlangObject[] keys() {
- final OtpErlangObject[] res = new OtpErlangObject[arity()];
- System.arraycopy(keys, 0, res, 0, res.length);
- return res;
+ return map.keySet().toArray(new OtpErlangObject[arity()]);
}
/**
@@ -184,9 +198,16 @@ public class OtpErlangMap extends OtpErlangObject {
* @return an array containing all of the map's values.
*/
public OtpErlangObject[] values() {
- final OtpErlangObject[] res = new OtpErlangObject[arity()];
- System.arraycopy(values, 0, res, 0, res.length);
- return res;
+ return map.values().toArray(new OtpErlangObject[arity()]);
+ }
+
+ /**
+ * make Set view of the map key-value pairs
+ *
+ * @return a set containing key-value pairs
+ */
+ public Set<Entry<OtpErlangObject, OtpErlangObject>> entrySet() {
+ return map.entrySet();
}
/**
@@ -196,19 +217,20 @@ public class OtpErlangMap extends OtpErlangObject {
*/
@Override
public String toString() {
- int i;
final StringBuffer s = new StringBuffer();
- final int arity = values.length;
s.append("#{");
- for (i = 0; i < arity; i++) {
- if (i > 0) {
+ boolean first = true;
+ for (final Map.Entry<OtpErlangObject, OtpErlangObject> e : entrySet()) {
+ if (first) {
+ first = false;
+ } else {
s.append(",");
}
- s.append(keys[i].toString());
+ s.append(e.getKey().toString());
s.append(" => ");
- s.append(values[i].toString());
+ s.append(e.getValue().toString());
}
s.append("}");
@@ -224,13 +246,13 @@ public class OtpErlangMap extends OtpErlangObject {
*/
@Override
public void encode(final OtpOutputStream buf) {
- final int arity = values.length;
+ final int arity = arity();
buf.write_map_head(arity);
- for (int i = 0; i < arity; i++) {
- buf.write_any(keys[i]);
- buf.write_any(values[i]);
+ for (final Map.Entry<OtpErlangObject, OtpErlangObject> e : entrySet()) {
+ buf.write_any(e.getKey());
+ buf.write_any(e.getValue());
}
}
@@ -256,15 +278,46 @@ public class OtpErlangMap extends OtpErlangObject {
if (a != t.arity()) {
return false;
}
+ if (a == 0) {
+ return true;
+ }
- for (int i = 0; i < a; i++) {
- if (!keys[i].equals(t.keys[i])) {
- return false; // early exit
+ OtpErlangObject key, val;
+ for (final Map.Entry<OtpErlangObject, OtpErlangObject> e : entrySet()) {
+ key = e.getKey();
+ val = e.getValue();
+ final OtpErlangObject v = t.get(key);
+ if (v == null || !val.equals(v)) {
+ return false;
}
}
- for (int i = 0; i < a; i++) {
- if (!values[i].equals(t.values[i])) {
- return false; // early exit
+
+ return true;
+ }
+
+ @Override
+ public <T> boolean match(final OtpErlangObject term, final T binds) {
+ if (!(term instanceof OtpErlangMap)) {
+ return false;
+ }
+
+ final OtpErlangMap t = (OtpErlangMap) term;
+ final int a = arity();
+
+ if (a > t.arity()) {
+ return false;
+ }
+ if (a == 0) {
+ return true;
+ }
+
+ OtpErlangObject key, val;
+ for (final Map.Entry<OtpErlangObject, OtpErlangObject> e : entrySet()) {
+ key = e.getKey();
+ val = e.getValue();
+ final OtpErlangObject v = t.get(key);
+ if (v == null || !val.match(v, binds)) {
+ return false;
}
}
@@ -272,23 +325,31 @@ public class OtpErlangMap extends OtpErlangObject {
}
@Override
+ public <T> OtpErlangObject bind(final T binds) throws OtpErlangException {
+ final OtpErlangMap ret = new OtpErlangMap();
+
+ OtpErlangObject key, val;
+ for (final Map.Entry<OtpErlangObject, OtpErlangObject> e : entrySet()) {
+ key = e.getKey();
+ val = e.getValue();
+ ret.put(key, val.bind(binds));
+ }
+
+ return ret;
+ }
+
+ @Override
protected int doHashCode() {
final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(9);
- final int a = arity();
- hash.combine(a);
- for (int i = 0; i < a; i++) {
- hash.combine(keys[i].hashCode());
- }
- for (int i = 0; i < a; i++) {
- hash.combine(values[i].hashCode());
- }
+ hash.combine(map.hashCode());
return hash.valueOf();
}
@Override
+ @SuppressWarnings("unchecked")
public Object clone() {
final OtpErlangMap newMap = (OtpErlangMap) super.clone();
- newMap.values = values.clone();
+ newMap.map = (HashMap<OtpErlangObject, OtpErlangObject>) map.clone();
return newMap;
}
}
diff --git a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangObject.java b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangObject.java
index 7ab160bcdd..9339d3749b 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangObject.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangObject.java
@@ -80,6 +80,32 @@ public abstract class OtpErlangObject implements Serializable, Cloneable {
@Override
public abstract boolean equals(Object o);
+ /**
+ * Perform match operation against given term.
+ *
+ * @param term
+ * the object to match
+ * @param binds
+ * variable bindings
+ * @return true if match succeeded
+ */
+ public <T> boolean match(final OtpErlangObject term, final T binds) {
+ return equals(term);
+ }
+
+ /**
+ * Make new Erlang term replacing variables with the respective values from
+ * bindings argument(s).
+ *
+ * @param binds
+ * variable bindings
+ * @return new term
+ * @throws OtpErlangException
+ */
+ public <T> OtpErlangObject bind(final T binds) throws OtpErlangException {
+ return this;
+ }
+
@Override
public int hashCode() {
if (hashCodeValue == 0) {
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 af2559e62e..ef0a453de1 100644
--- a/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangTuple.java
+++ b/lib/jinterface/java_src/com/ericsson/otp/erlang/OtpErlangTuple.java
@@ -236,6 +236,35 @@ public class OtpErlangTuple extends OtpErlangObject {
}
@Override
+ public <T> boolean match(final OtpErlangObject term, final T bindings) {
+ if (!(term instanceof OtpErlangTuple)) {
+ return false;
+ }
+ final OtpErlangTuple t = (OtpErlangTuple) term;
+ final int a = elems.length;
+ if (a != t.elems.length) {
+ return false;
+ }
+ for (int i = 0; i < a; i++) {
+ if (!elems[i].match(t.elems[i], bindings)) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ @Override
+ public <T> OtpErlangObject bind(final T binds) throws OtpErlangException {
+ final OtpErlangTuple tuple = (OtpErlangTuple) this.clone();
+ final int a = tuple.elems.length;
+ for (int i = 0; i < a; i++) {
+ final OtpErlangObject e = tuple.elems[i];
+ tuple.elems[i] = e.bind(binds);
+ }
+ return tuple;
+ }
+
+ @Override
protected int doHashCode() {
final OtpErlangObject.Hash hash = new OtpErlangObject.Hash(9);
final int a = arity();
diff --git a/lib/jinterface/test/jinterface_SUITE.erl b/lib/jinterface/test/jinterface_SUITE.erl
index 3743e763c5..73bab98559 100644
--- a/lib/jinterface/test/jinterface_SUITE.erl
+++ b/lib/jinterface/test/jinterface_SUITE.erl
@@ -40,7 +40,8 @@
status_handler_localStatus/1, status_handler_remoteStatus/1,
status_handler_connAttempt/1,
maps/1,
- fun_equals/1
+ fun_equals/1,
+ core_match_bind/1
]).
-include_lib("common_test/include/ct.hrl").
@@ -110,7 +111,8 @@ fundamental() ->
get_names, % GetNames.java
boolean_atom, % BooleanAtom.java
maps, % Maps.java
- fun_equals % FunEquals.java
+ fun_equals, % FunEquals.java
+ core_match_bind % CoreMatchBind.java
].
ping() ->
@@ -717,6 +719,18 @@ fun_equals(Config) when is_list(Config) ->
[]).
%%%-----------------------------------------------------------------
+core_match_bind(doc) ->
+ ["CoreMatchBind.java: "
+ "Test OtpErlangObject.match() and bind()"];
+core_match_bind(suite) ->
+ [];
+core_match_bind(Config) when is_list(Config) ->
+ ok = jitu:java(?config(java, Config),
+ ?config(data_dir, Config),
+ "CoreMatchBind",
+ []).
+
+%%%-----------------------------------------------------------------
%%% INTERNAL FUNCTIONS
%%%-----------------------------------------------------------------
send_receive(TestCaseTag,Fun,Config) ->
diff --git a/lib/jinterface/test/jinterface_SUITE_data/CoreMatchBind.java b/lib/jinterface/test/jinterface_SUITE_data/CoreMatchBind.java
new file mode 100644
index 0000000000..a78a63093e
--- /dev/null
+++ b/lib/jinterface/test/jinterface_SUITE_data/CoreMatchBind.java
@@ -0,0 +1,584 @@
+/*
+ * %CopyrightBegin%
+ *
+ * Copyright Ericsson AB 2000-2015. 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%
+ */
+
+import com.ericsson.otp.erlang.OtpErlangException;
+import com.ericsson.otp.erlang.OtpErlangInt;
+import com.ericsson.otp.erlang.OtpErlangList;
+import com.ericsson.otp.erlang.OtpErlangMap;
+import com.ericsson.otp.erlang.OtpErlangObject;
+import com.ericsson.otp.erlang.OtpErlangTuple;
+import com.ericsson.otp.erlang.OtpOutputStream;
+
+public class CoreMatchBind {
+
+ @SuppressWarnings("serial")
+ private static class DumbObject extends OtpErlangObject {
+
+ @Override
+ public String toString() {
+ return this.getClass().getSimpleName();
+ }
+
+ @Override
+ public void encode(final OtpOutputStream buf) {
+ fail("unexpected encode() call");
+ }
+
+ @Override
+ public boolean equals(final Object o) {
+ fail("unexpected equals() call");
+ return false;
+ }
+
+ }
+
+ @SuppressWarnings("serial")
+ private static class BoundObject extends OtpErlangObject {
+
+ @Override
+ public String toString() {
+ return this.getClass().getSimpleName();
+ }
+
+ @Override
+ public void encode(final OtpOutputStream buf) {
+ fail("unexpected encode() call");
+ }
+
+ @Override
+ public boolean equals(final Object o) {
+ fail("unexpected equals() call");
+ return false;
+ }
+
+ }
+
+ @SuppressWarnings("serial")
+ private static class TestObject extends OtpErlangObject {
+
+ private final Binder binder;
+ private DumbObject dumb;
+ private boolean flag;
+ private BoundObject obj;
+
+ public TestObject(final boolean flag, final Binder binder,
+ final DumbObject dumb) {
+ this.flag = flag;
+ this.binder = binder;
+ this.dumb = dumb;
+ }
+
+ public TestObject(final Binder binder, final BoundObject obj) {
+ this.binder = binder;
+ this.obj = obj;
+ }
+
+ public DumbObject getDumb() {
+ return dumb;
+ }
+
+ @Override
+ public String toString() {
+ return flag ? "T" : "F";
+ }
+
+ @Override
+ public void encode(final OtpOutputStream buf) {
+ fail("unexpected encode() call");
+ }
+
+ @Override
+ public boolean equals(final Object o) {
+ if (obj == null) {
+ fail("unexpected equals() call");
+ }
+ return o == obj;
+ }
+
+ @Override
+ public <T> boolean match(final OtpErlangObject term, final T binds) {
+ if (binds != binder) {
+ fail("invalid binder");
+ }
+ if (term != dumb) {
+ fail("invalid object");
+ }
+ return flag;
+ }
+
+ @Override
+ public <T> OtpErlangObject bind(final T binds)
+ throws OtpErlangException {
+ if (binds != binder) {
+ fail("invalid binder");
+ }
+ return obj;
+ }
+
+ }
+
+ /*
+ * "always matched" object
+ */
+ @SuppressWarnings("serial")
+ private static class Any extends OtpErlangObject {
+
+ @Override
+ public String toString() {
+ return "any";
+ }
+
+ @Override
+ public void encode(final OtpOutputStream buf) {
+ fail("unexpected encode() call");
+ }
+
+ @Override
+ public boolean equals(final Object o) {
+ fail("unexpected equals() call");
+ return false;
+ }
+
+ @Override
+ public <T> boolean match(final OtpErlangObject term, final T binds) {
+ return true;
+ }
+ }
+
+ private static class Binder {
+ // make object pair for match() testing
+ TestObject makeTest(final boolean flag) {
+ return new TestObject(flag, this, new DumbObject());
+ }
+
+ // make object pair for bind() testing
+ TestObject makeTest() {
+ return new TestObject(this, new BoundObject());
+ }
+ }
+
+ private static void isNotNull(final Object o) throws Exception {
+ if (o == null) {
+ throw new Exception("not null expected");
+ }
+ }
+
+ private static void fail(final String string) {
+ System.err.println(string);
+ new Throwable().printStackTrace(System.err);
+ System.exit(1);
+ }
+
+ private static void isT(final boolean b) throws Exception {
+ if (!b) {
+ throw new Exception("true expected");
+ }
+ }
+
+ private static void isF(final boolean b) throws Exception {
+ if (b) {
+ throw new Exception("false expected");
+ }
+ }
+
+ private static void equals(final OtpErlangObject a, final OtpErlangObject b)
+ throws Exception {
+ if (!a.equals(b)) {
+ throw new Exception(a + " != " + b);
+ }
+ }
+
+ /*
+ * scalar match test - match particular test object (producing given result)
+ * against particular dumb object passing particular bindings object; ensure
+ * all participants are used as expected in match behavior, check result.
+ */
+ private static void scalar_match_test() throws Exception {
+ final Binder bind = new Binder();
+
+ final TestObject t = bind.makeTest(true);
+ isT(t.match(t.getDumb(), bind));
+
+ final TestObject f = bind.makeTest(false);
+ isF(f.match(f.getDumb(), bind));
+ }
+
+ /*
+ * scalar bind test - ensure right object generated based on bindings
+ */
+ private static void scalar_bind_test() throws Exception {
+ final Binder bind = new Binder();
+ final TestObject t = bind.makeTest();
+ final OtpErlangObject o = t.bind(bind);
+ isNotNull(o);
+ equals(t, o);
+ }
+
+ /*
+ * used by tuple_arity_match_test()
+ */
+ private static OtpErlangObject mkTuplePattern(final int n) {
+ final Any a[] = new Any[n];
+ for (int i = 0; i < n; i++) {
+ a[i] = new Any();
+ }
+ return new OtpErlangTuple(a);
+ }
+
+ /*
+ * used by tuple_arity_match_test()
+ */
+ private static OtpErlangObject mkTupleObject(final int n) {
+ final DumbObject a[] = new DumbObject[n];
+ for (int i = 0; i < n; i++) {
+ a[i] = new DumbObject();
+ }
+ return new OtpErlangTuple(a);
+ }
+
+ /*
+ * ensure only tuples of the same arity can match
+ */
+ private static void tuple_arity_match_test(final int m, final int n)
+ throws Exception {
+ final Binder bind = new Binder();
+ for (int i = m; i < n; i++) {
+ for (int j = m; j < n; j++) {
+ final OtpErlangObject p = mkTuplePattern(i);
+ final OtpErlangObject o = mkTupleObject(j);
+ if (i == j) {
+ isT(p.match(o, bind));
+ } else {
+ isF(p.match(o, bind));
+ }
+ }
+ }
+ }
+
+ /*
+ * tuple match test - ensure elements of tuple are matched to corresponding
+ * elements of tested object and result is logical "and" over all elements.
+ */
+ private static void tuple_match_test(final int n) throws Exception {
+ final Binder bind = new Binder();
+ final int max = 1 << n;
+ final TestObject a[] = new TestObject[n];
+ final DumbObject d[] = new DumbObject[n];
+ for (int k = 0; k < max; k++) {
+ for (int m = 1, i = 0; m < max; m = m << 1, i++) {
+ d[i] = new DumbObject();
+ a[i] = new TestObject((k & m) != 0, bind, d[i]);
+ }
+ final OtpErlangObject tpl = new OtpErlangTuple(a);
+ final OtpErlangObject obj = new OtpErlangTuple(d);
+ if (k + 1 < max) {
+ isF(tpl.match(obj, bind));
+ } else {
+ isT(tpl.match(obj, bind));
+ }
+ }
+ }
+
+ /*
+ * tuple bind test - ensure result is a tuple where each element is a result
+ * of binding of corresponding pattern element using provided bindings.
+ */
+ private static void tuple_bind_test(final int n) throws Exception {
+ final Binder bind = new Binder();
+ final TestObject a[] = new TestObject[n];
+ final OtpErlangObject b[] = new OtpErlangObject[n];
+ for (int i = 0; i < n; i++) {
+ a[i] = bind.makeTest();
+ b[i] = a[i].obj;
+ }
+ final OtpErlangObject t = new OtpErlangTuple(a);
+ final OtpErlangObject o = t.bind(bind);
+ isNotNull(o);
+ equals(t, o);
+ }
+
+ private static OtpErlangObject mkListPattern(final int n, final boolean tail)
+ throws OtpErlangException {
+ final Any a[] = new Any[n];
+ for (int i = 0; i < n; i++) {
+ a[i] = new Any();
+ }
+ return tail ? new OtpErlangList(a, new Any()) : new OtpErlangList(a);
+ }
+
+ private static OtpErlangObject mkListObject(final int n, final boolean tail)
+ throws OtpErlangException {
+ final DumbObject a[] = new DumbObject[n];
+ for (int i = 0; i < n; i++) {
+ a[i] = new DumbObject();
+ }
+ return tail ? new OtpErlangList(a, new DumbObject())
+ : new OtpErlangList(a);
+ }
+
+ /*
+ * ensure only lists of the same arity and same tail presence can match
+ */
+ private static void list_arity_match_test(final int m, final int n)
+ throws Exception {
+ final Binder bind = new Binder();
+ for (int i = m; i < n; i++) {
+ for (int j = m; j < n; j++) {
+ for (int k = 0; k < 2; k++) {
+ if (i == 0 && k == 1) {
+ continue;
+ }
+ for (int l = 0; l < 2; l++) {
+ if (j == 0 && l == 1) {
+ continue;
+ }
+ final OtpErlangObject p = mkListPattern(i, k == 1);
+ final OtpErlangObject o = mkListObject(j, l == 1);
+ if (i == j && k == l || k == 1 && i <= j) {
+ isT(p.match(o, bind));
+ } else {
+ isF(p.match(o, bind));
+ }
+ }
+ }
+ }
+ }
+ }
+
+ /*
+ * lists match test - ensure elements of lists are matched to corresponding
+ * elements of tested object and result is logical "and" over all elements,
+ * count tails as well
+ */
+ private static void list_match_test(final int n) throws Exception {
+ final Binder bind = new Binder();
+ final int max = 1 << n;
+ final TestObject a[] = new TestObject[n];
+ final DumbObject d[] = new DumbObject[n];
+ final DumbObject e[] = new DumbObject[n + 1];
+ for (int k = 0; k < max; k++) {
+ for (int m = 1, i = 0; m < max; m = m << 1, i++) {
+ d[i] = new DumbObject();
+ e[i] = d[i];
+ a[i] = new TestObject((k & m) != 0, bind, d[i]);
+ }
+ for (int i = n; i < n + 1; i++) {
+ e[i] = new DumbObject();
+ }
+ final OtpErlangObject lst = new OtpErlangList(a);
+ final OtpErlangObject obj = new OtpErlangList(d);
+ final OtpErlangObject ext = new OtpErlangList(e);
+ final OtpErlangObject eTl = new OtpErlangList(e, new DumbObject());
+
+ if (n > 0) {
+ final DumbObject dTail = new DumbObject();
+ final TestObject tTail = new TestObject(true, bind, dTail);
+ final TestObject fTail = new TestObject(false, bind, dTail);
+ final OtpErlangObject fTailLst = new OtpErlangList(a, fTail);
+ final OtpErlangObject tTailLst = new OtpErlangList(a, tTail);
+ final OtpErlangObject tailObj = new OtpErlangList(d, dTail);
+
+ // match lists with non-matching tails is always false
+ isF(fTailLst.match(tailObj, bind));
+
+ // match list with no tail to list with tail is always false
+ isF(lst.match(tailObj, bind));
+
+ // matching lists with matching tails
+ if (k + 1 < max) {
+ isF(tTailLst.match(tailObj, bind));
+ } else {
+ isT(tTailLst.match(tailObj, bind));
+ }
+
+ // matching shorter pattern with last tail to longer list
+ // with or with no extra tail; matching list pattern
+ // with last tail to same length list with no tail.
+ final Any aTail = new Any();
+ final OtpErlangObject shortLst = new OtpErlangList(a, aTail);
+ if (k + 1 < max) {
+ isF(shortLst.match(obj, bind)); // same arity
+ isF(shortLst.match(ext, bind)); // pattern arity is less
+ isF(shortLst.match(eTl, bind)); //
+ } else {
+ isT(shortLst.match(obj, bind)); // same arity
+ isT(shortLst.match(ext, bind)); // pattern arity is less
+ isT(shortLst.match(eTl, bind)); //
+ }
+ }
+
+ // matching lists with no tails
+ if (k + 1 < max) {
+ isF(lst.match(obj, bind));
+ } else {
+ isT(lst.match(obj, bind));
+ }
+
+ // extra-length object, no tail in "pattern"
+ isF(lst.match(ext, bind));
+ }
+ }
+
+ /*
+ * list bind test - ensure result is a list where each element is a result
+ * of binding of corresponding pattern element using provided bindings.
+ */
+ private static void list_bind_test(final int n) throws Exception {
+ final Binder bind = new Binder();
+ final TestObject a[] = new TestObject[n];
+ final OtpErlangObject b[] = new OtpErlangObject[n];
+ for (int i = 0; i < n; i++) {
+ a[i] = bind.makeTest();
+ b[i] = a[i].obj;
+ }
+ OtpErlangObject t = new OtpErlangList(a);
+ OtpErlangObject o = t.bind(bind);
+ isNotNull(o);
+ equals(t, o);
+ if (n > 0) {
+ // improper list case
+ t = new OtpErlangList(a, bind.makeTest());
+ o = t.bind(bind);
+ isNotNull(o);
+ equals(t, o);
+ }
+ }
+
+ /*
+ * map match test - object may have more keys than pattern
+ */
+ private static void map_match_test(final int m, final int n)
+ throws Exception {
+ final Binder bind = new Binder();
+
+ // pattern side - m elements
+ final OtpErlangObject k1[] = new OtpErlangObject[m];
+ final TestObject a[] = new TestObject[m];
+
+ // object side - n elements
+ final OtpErlangObject k2[] = new OtpErlangObject[n];
+ final DumbObject d[] = new DumbObject[n];
+
+ final int max = Math.max(m, n);
+ final int mskHi = 1 << max;
+ final int full = (1 << m) - 1;
+ for (int k = 0; k < mskHi; k++) {
+ for (int msk = 1, i = 0; msk < mskHi; msk = msk << 1, i++) {
+ if (i < n) {
+ k2[i] = new OtpErlangInt(i);
+ d[i] = new DumbObject();
+ }
+ if (i < m) {
+ k1[i] = new OtpErlangInt(i);
+ a[i] = new TestObject((k & msk) != 0, bind, i < n ? d[i]
+ : new DumbObject());
+ }
+ }
+ final OtpErlangObject map = new OtpErlangMap(k1, a); // m items
+ final OtpErlangObject obj = new OtpErlangMap(k2, d); // n items
+ if ((k & full) == full && m <= n) {
+ isT(map.match(obj, bind));
+ } else {
+ isF(map.match(obj, bind));
+ }
+ }
+ }
+
+ /*
+ * map bind test - ensure result is a map where each element is a result of
+ * binding of corresponding pattern element using provided bindings.
+ */
+ private static void map_bind_test(final int n) throws Exception {
+ final Binder bind = new Binder();
+ final TestObject a[] = new TestObject[n];
+ final OtpErlangObject b[] = new OtpErlangObject[n];
+ final OtpErlangObject k[] = new OtpErlangObject[n];
+ for (int i = 0; i < n; i++) {
+ a[i] = bind.makeTest();
+ b[i] = a[i].obj;
+ k[i] = new OtpErlangInt(i);
+ }
+ final OtpErlangObject t = new OtpErlangMap(k, a);
+ final OtpErlangObject o = t.bind(bind);
+ isNotNull(o);
+ equals(t, o);
+ }
+
+ public static void main(final String[] args) {
+ try {
+ scalar_match_test();
+ System.out.println("scalar_match_test() passed");
+
+ scalar_bind_test();
+ System.out.println("scalar_bind_test() passed");
+
+ for (int m = 0; m < 16; m++) {
+ for (int n = 0; n < 16; n++) {
+ tuple_arity_match_test(m, n);
+ }
+ }
+ System.out.println("tuple_arity_match_test() passed");
+
+ for (int n = 0; n < 16; n++) {
+ tuple_match_test(n);
+ }
+ System.out.println("tuple_match_test() passed");
+
+ for (int n = 0; n < 16; n++) {
+ tuple_bind_test(n);
+ }
+ System.out.println("tuple_bind_test() passed");
+
+ for (int m = 0; m < 16; m++) {
+ for (int n = 0; n < 16; n++) {
+ list_arity_match_test(m, n);
+ }
+ }
+ System.out.println("list_arity_match_test() passed");
+
+ for (int n = 0; n < 16; n++) {
+ list_match_test(n);
+ }
+ System.out.println("list_match_test() passed");
+
+ for (int n = 0; n < 16; n++) {
+ list_bind_test(n);
+ }
+ System.out.println("list_bind_test() passed");
+
+ for (int m = 0; m < 12; m++) {
+ for (int n = 0; n < 12; n++) {
+ map_match_test(m, n);
+ }
+ }
+ System.out.println("map_match_test() passed");
+
+ for (int n = 0; n < 16; n++) {
+ map_bind_test(n);
+ }
+ System.out.println("map_bind_test() passed");
+
+ } catch (final Exception e) {
+ e.printStackTrace();
+ System.exit(1);
+ }
+
+ System.out.println("ok");
+ }
+}
diff --git a/lib/jinterface/test/jinterface_SUITE_data/Makefile.src b/lib/jinterface/test/jinterface_SUITE_data/Makefile.src
index eca043913e..a4a69000c6 100644
--- a/lib/jinterface/test/jinterface_SUITE_data/Makefile.src
+++ b/lib/jinterface/test/jinterface_SUITE_data/Makefile.src
@@ -49,7 +49,8 @@ JAVA_FILES = \
MboxLinkUnlink.java \
NodeStatusHandler.java \
Maps.java \
- FunEquals.java
+ FunEquals.java \
+ CoreMatchBind.java
CLASS_FILES = $(JAVA_FILES:.java=.class)