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
|
/*
* Copyright 2021 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.turbine.types;
import com.google.common.collect.ImmutableList;
import com.google.turbine.type.Type;
/** Removes type annotation metadata. */
public class Deannotate {
public static Type deannotate(Type ty) {
switch (ty.tyKind()) {
case CLASS_TY:
return deannotateClassTy((Type.ClassTy) ty);
case ARRAY_TY:
return Type.ArrayTy.create(
deannotate(((Type.ArrayTy) ty).elementType()), ImmutableList.of());
case INTERSECTION_TY:
return Type.IntersectionTy.create(deannotate(((Type.IntersectionTy) ty).bounds()));
case WILD_TY:
return deannotateWildTy((Type.WildTy) ty);
case METHOD_TY:
return deannotateMethodTy((Type.MethodTy) ty);
case PRIM_TY:
return Type.PrimTy.create(((Type.PrimTy) ty).primkind(), ImmutableList.of());
case TY_VAR:
return Type.TyVar.create(((Type.TyVar) ty).sym(), ImmutableList.of());
case VOID_TY:
case ERROR_TY:
case NONE_TY:
return ty;
}
throw new AssertionError(ty.tyKind());
}
private static ImmutableList<Type> deannotate(ImmutableList<Type> types) {
ImmutableList.Builder<Type> result = ImmutableList.builder();
for (Type type : types) {
result.add(deannotate(type));
}
return result.build();
}
public static Type.ClassTy deannotateClassTy(Type.ClassTy ty) {
ImmutableList.Builder<Type.ClassTy.SimpleClassTy> classes = ImmutableList.builder();
for (Type.ClassTy.SimpleClassTy c : ty.classes()) {
classes.add(
Type.ClassTy.SimpleClassTy.create(c.sym(), deannotate(c.targs()), ImmutableList.of()));
}
return Type.ClassTy.create(classes.build());
}
private static Type deannotateWildTy(Type.WildTy ty) {
switch (ty.boundKind()) {
case NONE:
return Type.WildUnboundedTy.create(ImmutableList.of());
case LOWER:
return Type.WildLowerBoundedTy.create(ty.bound(), ImmutableList.of());
case UPPER:
return Type.WildUpperBoundedTy.create(ty.bound(), ImmutableList.of());
}
throw new AssertionError(ty.boundKind());
}
private static Type deannotateMethodTy(Type.MethodTy ty) {
return Type.MethodTy.create(
ty.tyParams(),
deannotate(ty.returnType()),
ty.receiverType() != null ? deannotate(ty.receiverType()) : null,
deannotate(ty.parameters()),
deannotate(ty.thrown()));
}
private Deannotate() {}
}
|
