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
|
/*
* Javassist, a Java-bytecode translator toolkit.
* Copyright (C) 1999-2003 Shigeru Chiba. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*/
package javassist.compiler.ast;
import javassist.compiler.TokenId;
import javassist.compiler.CompileError;
/**
* Variable declarator.
*/
public class Declarator extends ASTList implements TokenId {
protected int varType;
protected int arrayDim;
protected int localVar;
protected String qualifiedClass; // JVM-internal representation
public Declarator(int type, int dim) {
super(null);
varType = type;
arrayDim = dim;
localVar = -1;
qualifiedClass = null;
}
public Declarator(ASTList className, int dim) {
super(null);
varType = CLASS;
arrayDim = dim;
localVar = -1;
qualifiedClass = astToClassName(className, '/');
}
/* For declaring a pre-defined? local variable.
*/
public Declarator(int type, String jvmClassName, int dim,
int var, Symbol sym) {
super(null);
varType = type;
arrayDim = dim;
localVar = var;
qualifiedClass = jvmClassName;
setLeft(sym);
append(this, null); // initializer
}
public Declarator make(Symbol sym, int dim, ASTree init) {
Declarator d = new Declarator(this.varType, this.arrayDim + dim);
d.qualifiedClass = this.qualifiedClass;
d.setLeft(sym);
d.append(d, init);
return d;
}
/* Returns CLASS, BOOLEAN, BYTE, CHAR, SHORT, INT, LONG, FLOAT,
* or DOUBLE (or VOID)
*/
public int getType() { return varType; }
public int getArrayDim() { return arrayDim; }
public void addArrayDim(int d) { arrayDim += d; }
public String getClassName() { return qualifiedClass; }
public void setClassName(String s) { qualifiedClass = s; }
public Symbol getVariable() { return (Symbol)getLeft(); }
public void setVariable(Symbol sym) { setLeft(sym); }
public ASTree getInitializer() {
ASTList t = tail();
if (t != null)
return t.head();
else
return null;
}
public void setLocalVar(int n) { localVar = n; }
public int getLocalVar() { return localVar; }
public String getTag() { return "decl"; }
public void accept(Visitor v) throws CompileError {
v.atDeclarator(this);
}
public static String astToClassName(ASTList name, char sep) {
if (name == null)
return null;
StringBuffer sbuf = new StringBuffer();
for (;;) {
sbuf.append(((Symbol)name.head()).get());
name = name.tail();
if (name == null)
break;
sbuf.append(sep);
}
return sbuf.toString();
}
}
|
