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
41 import java.lang.invoke.MethodHandles;
42 import jdk.incubator.code.dialect.java.JavaType;
43 import java.util.ArrayList;
44 import java.util.List;
45
46 import static jdk.incubator.code.dialect.core.CoreOp.return_;
47 import static jdk.incubator.code.dialect.java.JavaOp.add;
48 import static jdk.incubator.code.dialect.core.CoreOp.closure;
49 import static jdk.incubator.code.dialect.core.CoreOp.closureCall;
50 import static jdk.incubator.code.dialect.core.CoreOp.constant;
51 import static jdk.incubator.code.dialect.core.CoreOp.func;
52 import static jdk.incubator.code.dialect.core.CoreOp.quoted;
53 import static jdk.incubator.code.dialect.core.CoreType.functionType;
54 import static jdk.incubator.code.dialect.java.JavaType.INT;
55 import static jdk.incubator.code.dialect.java.JavaType.type;
56
57 public class TestClosureOps {
58
59 static class Builder {
60 static final MethodRef ACCEPT_METHOD = MethodRef.method(type(TestClosureOps.Builder.class), "accept",
61 INT, CoreOp.QuotedOp.QUOTED_TYPE);
62
63 static int accept(Quoted c) {
64 Assert.assertEquals(1, c.capturedValues().size());
65 Assert.assertEquals(1, c.capturedValues().values().iterator().next());
66
67 List<Object> arguments = new ArrayList<>();
68 arguments.add(42);
69 arguments.addAll(c.capturedValues().values());
70 int r = (int) Interpreter.invoke(MethodHandles.lookup(), (Op & Op.Invokable) c.op(),
71 arguments);
72 return r;
73 }
74 }
75
76 @Test
77 public void testQuotedWithCapture() {
78 // functional type = (int)int
79 CoreOp.FuncOp f = func("f", functionType(INT, INT))
80 .body(block -> {
81 Block.Parameter i = block.parameters().get(0);
82
83 // functional type = (int)int
84 // op descriptor = ()Quoted<ClosureOp>
85 CoreOp.QuotedOp qop = quoted(block.parentBody(), qblock -> {
86 return closure(qblock.parentBody(), functionType(INT, INT))
87 .body(cblock -> {
88 Block.Parameter ci = cblock.parameters().get(0);
89
90 cblock.op(return_(
91 // capture i from function's body
92 cblock.op(add(i, ci))
93 ));
94 });
95 });
96 Op.Result cquoted = block.op(qop);
97
98 Op.Result or = block.op(JavaOp.invoke(TestClosureOps.Builder.ACCEPT_METHOD, cquoted));
99 block.op(return_(or));
100 });
101
102 System.out.println(f.toText());
103
104 int ir = (int) Interpreter.invoke(MethodHandles.lookup(), f, 1);
105 Assert.assertEquals(ir, 43);
106 }
107
108 @Test
109 public void testWithCapture() {
110 // functional type = (int)int
111 CoreOp.FuncOp f = func("f", functionType(INT, INT))
112 .body(block -> {
113 Block.Parameter i = block.parameters().get(0);
114
115 // functional type = (int)int
116 // captures i
117 CoreOp.ClosureOp closure = CoreOp.closure(block.parentBody(),
118 functionType(INT, INT))
119 .body(cblock -> {
120 Block.Parameter ci = cblock.parameters().get(0);
121
122 cblock.op(return_(
123 cblock.op(add(i, ci))));
124 });
125 Op.Result c = block.op(closure);
126
127 Op.Result fortyTwo = block.op(constant(INT, 42));
128 Op.Result or = block.op(closureCall(c, fortyTwo));
129 block.op(return_(or));
130 });
131
132 System.out.println(f.toText());
133
134 int ir = (int) Interpreter.invoke(MethodHandles.lookup(), f, 1);
135 Assert.assertEquals(ir, 43);
136 }
137
138 @Test
139 public void testQuotableModel() {
140 Quoted quoted = () -> {};
141 Op qop = quoted.op();
142 Op top = qop.ancestorOp().ancestorOp();
143 Assert.assertTrue(top instanceof CoreOp.FuncOp);
144
145 CoreOp.FuncOp fop = (CoreOp.FuncOp) top;
146 Assert.assertEquals(JavaType.type(Quoted.class), fop.invokableType().returnType());
147 }
148 }