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 org.testng.Assert;
31 import org.testng.annotations.Test;
32
33 import jdk.incubator.code.Block;
34 import jdk.incubator.code.op.CoreOp;
35 import jdk.incubator.code.Op;
36 import jdk.incubator.code.Quoted;
37 import jdk.incubator.code.type.MethodRef;
38 import jdk.incubator.code.interpreter.Interpreter;
39 import java.lang.invoke.MethodHandles;
40 import jdk.incubator.code.type.JavaType;
41 import java.util.ArrayList;
42 import java.util.List;
43
44 import static jdk.incubator.code.op.CoreOp._return;
45 import static jdk.incubator.code.op.CoreOp.add;
46 import static jdk.incubator.code.op.CoreOp.closure;
47 import static jdk.incubator.code.op.CoreOp.closureCall;
48 import static jdk.incubator.code.op.CoreOp.constant;
49 import static jdk.incubator.code.op.CoreOp.func;
50 import static jdk.incubator.code.op.CoreOp.quoted;
51 import static jdk.incubator.code.type.FunctionType.functionType;
52 import static jdk.incubator.code.type.JavaType.INT;
53 import static jdk.incubator.code.type.JavaType.type;
54
55 public class TestClosureOps {
56
57 static class Builder {
58 static final MethodRef ACCEPT_METHOD = MethodRef.method(type(TestClosureOps.Builder.class), "accept",
59 INT, CoreOp.QuotedOp.QUOTED_TYPE);
60
61 static int accept(Quoted c) {
62 Assert.assertEquals(1, c.capturedValues().size());
63 Assert.assertEquals(1, c.capturedValues().values().iterator().next());
64
65 List<Object> arguments = new ArrayList<>();
66 arguments.add(42);
67 arguments.addAll(c.capturedValues().values());
68 int r = (int) Interpreter.invoke(MethodHandles.lookup(), (Op & Op.Invokable) c.op(),
69 arguments);
70 return r;
71 }
72 }
73
74 @Test
75 public void testQuotedWithCapture() {
76 // functional type = (int)int
77 CoreOp.FuncOp f = func("f", functionType(INT, INT))
78 .body(block -> {
79 Block.Parameter i = block.parameters().get(0);
80
81 // functional type = (int)int
82 // op descriptor = ()Quoted<ClosureOp>
83 CoreOp.QuotedOp qop = quoted(block.parentBody(), qblock -> {
84 return closure(qblock.parentBody(), functionType(INT, INT))
85 .body(cblock -> {
86 Block.Parameter ci = cblock.parameters().get(0);
87
88 cblock.op(_return(
89 // capture i from function's body
90 cblock.op(add(i, ci))
91 ));
92 });
93 });
94 Op.Result cquoted = block.op(qop);
95
96 Op.Result or = block.op(CoreOp.invoke(TestClosureOps.Builder.ACCEPT_METHOD, cquoted));
97 block.op(_return(or));
98 });
99
100 f.writeTo(System.out);
101
102 int ir = (int) Interpreter.invoke(MethodHandles.lookup(), f, 1);
103 Assert.assertEquals(ir, 43);
104 }
105
106 @Test
107 public void testWithCapture() {
108 // functional type = (int)int
109 CoreOp.FuncOp f = func("f", functionType(INT, INT))
110 .body(block -> {
111 Block.Parameter i = block.parameters().get(0);
112
113 // functional type = (int)int
114 // captures i
115 CoreOp.ClosureOp closure = CoreOp.closure(block.parentBody(),
116 functionType(INT, INT))
117 .body(cblock -> {
118 Block.Parameter ci = cblock.parameters().get(0);
119
120 cblock.op(_return(
121 cblock.op(add(i, ci))));
122 });
123 Op.Result c = block.op(closure);
124
125 Op.Result fortyTwo = block.op(constant(INT, 42));
126 Op.Result or = block.op(closureCall(c, fortyTwo));
127 block.op(_return(or));
128 });
129
130 f.writeTo(System.out);
131
132 int ir = (int) Interpreter.invoke(MethodHandles.lookup(), f, 1);
133 Assert.assertEquals(ir, 43);
134 }
135
136 @Test
137 public void testQuotableModel() {
138 Quoted quoted = () -> {};
139 Op qop = quoted.op();
140 Op top = qop.ancestorBody().parentOp().ancestorBody().parentOp();
141 Assert.assertTrue(top instanceof CoreOp.FuncOp);
142
143 CoreOp.FuncOp fop = (CoreOp.FuncOp) top;
144 Assert.assertEquals(JavaType.type(Quoted.class), fop.invokableType().returnType());
145 }
146 }