aboutsummaryrefslogtreecommitdiff
path: root/src/jdk/nashorn/internal/runtime/regexp/joni/StackEntry.java
blob: 9161336a446e0e898c872bdba1ae287b631f9a08 (plain)
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
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
/*
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is furnished to do
 * so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
package jdk.nashorn.internal.runtime.regexp.joni;

final class StackEntry {
    int type;
    private int E1, E2, E3, E4;

    // first union member
    /* byte code position */
    void setStatePCode(int pcode) {
        E1 = pcode;
    }
    int getStatePCode() {
        return E1;
    }
    /* string position */
    void setStatePStr(int pstr) {
        E2 = pstr;
    }
    int getStatePStr() {
        return E2;
    }
    /* previous char position of pstr */
    void setStatePStrPrev(int pstrPrev) {
        E3 = pstrPrev;
    }
    int getStatePStrPrev() {
        return E3;
    }

    void setStateCheck(int check) {
        E4 = check;
    }
    int getStateCheck() {
        return E4;
    }

    // second union member
    /* for OP_REPEAT_INC, OP_REPEAT_INC_NG */
    void setRepeatCount(int count) {
        E1 = count;
    }
    int getRepeatCount() {
        return E1;
    }
    void decreaseRepeatCount() {
        E1--;
    }
    void increaseRepeatCount() {
        E1++;
    }
    /* byte code position (head of repeated target) */
    void setRepeatPCode(int pcode) {
        E2 = pcode;
    }
    int getRepeatPCode() {
        return E2;
    }
    /* repeat id */
    void setRepeatNum(int num) {
        E3 = num;
    }
    int getRepeatNum() {
        return E3;
    }

    // third union member
    /* index of stack */ /*int repeat_inc struct*/
    void setSi(int si) {
        E1 = si;
    }
    int getSi() {
        return E1;
    }

    // fourth union member
    /* memory num */
    void setMemNum(int num) {
        E1 = num;
    }
    int getMemNum() {
        return E1;
    }
    /* start/end position */
    void setMemPstr(int pstr) {
        E2 = pstr;
    }
    int getMemPStr() {
        return E2;
    }

    /* Following information is set, if this stack type is MEM-START */
    /* prev. info (for backtrack  "(...)*" ) */
    void setMemStart(int start) {
        E3 = start;
    }
    int getMemStart() {
        return E3;
    }
    /* prev. info (for backtrack  "(...)*" ) */
    void setMemEnd(int end) {
        E4 = end;
    }
    int getMemEnd() {
        return E4;
    }

    // fifth union member
    /* null check id */
    void setNullCheckNum(int num) {
        E1 = num;
    }
    int getNullCheckNum() {
        return E1;
    }
    /* start position */
    void setNullCheckPStr(int pstr) {
        E2 = pstr;
    }
    int getNullCheckPStr() {
        return E2;
    }

    // sixth union member
    /* byte code position */
    void setCallFrameRetAddr(int addr) {
        E1 = addr;
    }
    int getCallFrameRetAddr() {
        return E1;
    }
    /* null check id */
    void setCallFrameNum(int num) {
        E2 = num;
    }
    int getCallFrameNum() {
        return E2;
    }
    /* string position */
    void setCallFramePStr(int pstr) {
        E3 = pstr;
    }
    int getCallFramePStr() {
        return E3;
    }
}