1 /*
2 * Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /*
25 * @test
26 * @modules jdk.incubator.code
27 * @run testng TestClosureOps
28 */
29
30 import jdk.incubator.code.dialect.java.JavaOp;
31 import org.testng.Assert;
32 import org.testng.annotations.Test;
33
34 import jdk.incubator.code.Block;
35 import jdk.incubator.code.dialect.core.CoreOp;
36 import jdk.incubator.code.Op;
37 import jdk.incubator.code.Quoted;
38 import jdk.incubator.code.dialect.java.MethodRef;
39 import jdk.incubator.code.interpreter.Interpreter;
40 import java.lang.invoke.MethodHandles;
41 import jdk.incubator.code.dialect.java.JavaType;
42 import java.util.ArrayList;
43 import java.util.List;
44
45 import static jdk.incubator.code.dialect.core.CoreOp.return_;
46 import static jdk.incubator.code.dialect.java.JavaOp.add;
47 import static jdk.incubator.code.dialect.core.CoreOp.closure;
48 import static jdk.incubator.code.dialect.core.CoreOp.closureCall;
49 import static jdk.incubator.code.dialect.core.CoreOp.constant;
50 import static jdk.incubator.code.dialect.core.CoreOp.func;
51 import static jdk.incubator.code.dialect.core.CoreOp.quoted;
52 import static jdk.incubator.code.dialect.core.CoreType.functionType;
53 import static jdk.incubator.code.dialect.java.JavaType.INT;
54 import static jdk.incubator.code.dialect.java.JavaType.type;
55
56 public class TestClosureOps {
57
58 static class Builder {
59 static final MethodRef ACCEPT_METHOD = MethodRef.method(type(TestClosureOps.Builder.class), "accept",
60 INT, CoreOp.QuotedOp.QUOTED_TYPE);
61
62 static int accept(Quoted c) {
63 Assert.assertEquals(1, c.capturedValues().size());
64 Assert.assertEquals(1, c.capturedValues().values().iterator().next());
65
66 List<Object> arguments = new ArrayList<>();
67 arguments.add(42);
68 arguments.addAll(c.capturedValues().values());
69 int r = (int) Interpreter.invoke(MethodHandles.lookup(), (Op & Op.Invokable) c.op(),
70 arguments);
71 return r;
72 }
73 }
74
75 @Test
76 public void testQuotedWithCapture() {
77 // functional type = (int)int
78 CoreOp.FuncOp f = func("f", functionType(INT, INT))
79 .body(block -> {
80 Block.Parameter i = block.parameters().get(0);
81
82 // functional type = (int)int
83 // op descriptor = ()Quoted<ClosureOp>
84 CoreOp.QuotedOp qop = quoted(block.parentBody(), qblock -> {
85 return closure(qblock.parentBody(), functionType(INT, INT))
86 .body(cblock -> {
87 Block.Parameter ci = cblock.parameters().get(0);
88
89 cblock.op(return_(
90 // capture i from function's body
91 cblock.op(add(i, ci))
92 ));
93 });
94 });
95 Op.Result cquoted = block.op(qop);
96
97 Op.Result or = block.op(JavaOp.invoke(TestClosureOps.Builder.ACCEPT_METHOD, cquoted));
98 block.op(return_(or));
99 });
100
101 f.writeTo(System.out);
102
103 int ir = (int) Interpreter.invoke(MethodHandles.lookup(), f, 1);
104 Assert.assertEquals(ir, 43);
105 }
106
107 @Test
108 public void testWithCapture() {
109 // functional type = (int)int
110 CoreOp.FuncOp f = func("f", functionType(INT, INT))
111 .body(block -> {
112 Block.Parameter i = block.parameters().get(0);
113
114 // functional type = (int)int
115 // captures i
116 CoreOp.ClosureOp closure = CoreOp.closure(block.parentBody(),
117 functionType(INT, INT))
118 .body(cblock -> {
119 Block.Parameter ci = cblock.parameters().get(0);
120
121 cblock.op(return_(
122 cblock.op(add(i, ci))));
123 });
124 Op.Result c = block.op(closure);
125
126 Op.Result fortyTwo = block.op(constant(INT, 42));
127 Op.Result or = block.op(closureCall(c, fortyTwo));
128 block.op(return_(or));
129 });
130
131 f.writeTo(System.out);
132
133 int ir = (int) Interpreter.invoke(MethodHandles.lookup(), f, 1);
134 Assert.assertEquals(ir, 43);
135 }
136
137 @Test
138 public void testQuotableModel() {
139 Quoted quoted = () -> {};
140 Op qop = quoted.op();
141 Op top = qop.ancestorBody().parentOp().ancestorBody().parentOp();
142 Assert.assertTrue(top instanceof CoreOp.FuncOp);
143
144 CoreOp.FuncOp fop = (CoreOp.FuncOp) top;
145 Assert.assertEquals(JavaType.type(Quoted.class), fop.invokableType().returnType());
146 }
147 }