-
Notifications
You must be signed in to change notification settings - Fork 1.6k
/
SnippetSignature.java
145 lines (128 loc) 路 5.12 KB
/
SnippetSignature.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
/*
* Copyright (c) 2020, 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package jdk.graal.compiler.hotspot;
import java.util.ArrayList;
import java.util.EnumMap;
import java.util.List;
import jdk.graal.compiler.util.SignatureUtil;
import jdk.vm.ci.common.NativeImageReinitialize;
import jdk.vm.ci.meta.JavaKind;
import jdk.vm.ci.meta.JavaType;
import jdk.vm.ci.meta.MetaAccessProvider;
import jdk.vm.ci.meta.ResolvedJavaType;
import jdk.vm.ci.meta.Signature;
import jdk.vm.ci.meta.UnresolvedJavaType;
/**
* A minimal implementation of {@link Signature} for use by libgraal. It does not support any
* dynamic resolution of types in signatures.
*
* @see SnippetResolvedJavaType
*/
public final class SnippetSignature implements Signature {
private final List<String> parameters;
private final String returnType;
private final String originalString;
@NativeImageReinitialize private static EnumMap<JavaKind, ResolvedJavaType> primitiveTypes = null;
static synchronized void initPrimitiveKindCache(MetaAccessProvider metaAccess) {
if (primitiveTypes == null) {
// Create the cache
EnumMap<JavaKind, ResolvedJavaType> types = new EnumMap<>(JavaKind.class);
for (JavaKind kind : JavaKind.values()) {
if (kind.isPrimitive()) {
types.put(kind, metaAccess.lookupJavaType(kind.toJavaClass()));
}
}
// Publish it
primitiveTypes = types;
}
}
public SnippetSignature(String signature) {
ArrayList<String> buffer = new ArrayList<>();
returnType = SignatureUtil.parseSignature(signature, buffer);
parameters = List.copyOf(buffer);
originalString = signature;
}
@Override
public int getParameterCount(boolean withReceiver) {
return parameters.size() + (withReceiver ? 1 : 0);
}
@Override
public JavaKind getParameterKind(int index) {
return JavaKind.fromTypeString(parameters.get(index));
}
private static JavaType getUnresolvedOrPrimitiveType(String name) {
if (name.length() == 1) {
JavaKind kind = JavaKind.fromPrimitiveOrVoidTypeChar(name.charAt(0));
return primitiveTypes.get(kind);
}
return UnresolvedJavaType.create(name);
}
@Override
public JavaType getParameterType(int index, ResolvedJavaType accessingClass) {
if (accessingClass == null) {
// Caller doesn't care about resolution context so return an unresolved
// or primitive type (primitive type resolution is context free)
return getUnresolvedOrPrimitiveType(parameters.get(index));
}
throw new NoClassDefFoundError("dynamic resolution unsupported: " + parameters.get(index));
}
@Override
public String toMethodDescriptor() {
return originalString;
}
@Override
public JavaKind getReturnKind() {
return JavaKind.fromTypeString(returnType);
}
@Override
public JavaType getReturnType(ResolvedJavaType accessingClass) {
if (accessingClass == null) {
// Caller doesn't care about resolution context so return an unresolved
// or primitive type (primitive type resolution is context free)
return getUnresolvedOrPrimitiveType(returnType);
}
throw new NoClassDefFoundError("dynamic resolution unsupported: " + returnType);
}
@Override
public String toString() {
return "SnippetSignature<" + originalString + ">";
}
@Override
public boolean equals(Object obj) {
if (obj instanceof SnippetSignature) {
SnippetSignature other = (SnippetSignature) obj;
if (other.originalString.equals(originalString)) {
assert other.parameters.equals(parameters);
assert other.returnType.equals(returnType);
return true;
}
}
return false;
}
@Override
public int hashCode() {
return originalString.hashCode();
}
}