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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
|
package value
import (
"fmt"
"jinx/pkg/lang/vm/code"
"jinx/pkg/lang/vm/mem"
"strconv"
"strings"
)
type Data interface {
String(mem.Mem) (string, error)
}
type IntData int64
func (i IntData) Get() int64 {
return int64(i)
}
func (i IntData) String(_ mem.Mem) (string, error) {
return strconv.FormatInt(int64(i), 10), nil
}
type FloatData float64
func (f FloatData) Get() float64 {
return float64(f)
}
func (f FloatData) String(_ mem.Mem) (string, error) {
return strconv.FormatFloat(float64(f), 'f', -1, 64), nil
}
type StringData struct {
data mem.Ptr
}
func (s StringData) String(m mem.Mem) (string, error) {
if data, err := m.Get(s.data); err == nil {
return "\"" + data.(StringCell).Get() + "\"", nil
} else {
return "", err
}
}
func (s StringData) RawString(m mem.Mem) (string, error) {
if data, err := m.Get(s.data); err == nil {
return data.(StringCell).Get(), nil
} else {
return "", err
}
}
type BoolData bool
func (b BoolData) Get() bool {
return bool(b)
}
func (b BoolData) String(_ mem.Mem) (string, error) {
return strconv.FormatBool(bool(b)), nil
}
type ArrayData struct {
data mem.Ptr
}
func (a ArrayData) String(m mem.Mem) (string, error) {
val, err := m.Get(a.data)
if err != nil {
return "", err
}
arr := val.(ArrayCell).Get()
builder := strings.Builder{}
builder.WriteString("[")
for i, v := range arr {
if i > 0 {
builder.WriteString(", ")
}
if s, err := v.Data().String(m); err == nil {
builder.WriteString(s)
} else {
return "", err
}
}
builder.WriteString("]")
return builder.String(), nil
}
func (a ArrayData) Len(m mem.Mem) (int, error) {
data, err := m.Get(a.data)
if err != nil {
return 0, err
}
arr := data.(ArrayCell).Get()
return len(arr), nil
}
func (a ArrayData) At(m mem.Mem, i int) (Value, error) {
data, err := m.Get(a.data)
if err != nil {
return Value{}, err
}
arr := data.(ArrayCell).Get()
return arr[i], nil
}
func (a ArrayData) Set(m mem.Mem, i int, v Value) error {
data, err := m.Get(a.data)
if err != nil {
return err
}
arr := data.(ArrayCell).Get()
arr[i] = v
if err := m.Set(a.data, ArrayCell(arr)); err != nil {
return err
}
return nil
}
func (a ArrayData) Push(m mem.Mem, v Value) error {
data, err := m.Get(a.data)
if err != nil {
return err
}
arr := data.(ArrayCell).Get()
arr = append(arr, v)
if err := m.Set(a.data, ArrayCell(arr)); err != nil {
return err
}
return nil
}
func (a ArrayData) Pop(m mem.Mem) (Value, error) {
data, err := m.Get(a.data)
if err != nil {
return Value{}, err
}
arr := data.(ArrayCell).Get()
popped := arr[len(arr)-1]
arr = arr[:len(arr)-1]
if err := m.Set(a.data, ArrayCell(arr)); err != nil {
return Value{}, err
}
return popped, nil
}
type NullData struct{}
func (n NullData) String(_ mem.Mem) (string, error) {
return "null", nil
}
type FunctionData struct {
pos code.Pos
args uint
env mem.Ptr
native NativeFunc
}
type NativeFunc func([]Value) (Value, error)
func (f FunctionData) Pos() code.Pos {
return f.pos
}
func (f FunctionData) Args() uint {
return f.args
}
func (f FunctionData) Env() mem.Ptr {
return f.env
}
func (f FunctionData) Native() NativeFunc {
return f.native
}
func (f FunctionData) WithEnv(env mem.Ptr) FunctionData {
return FunctionData{pos: f.pos, args: f.args, env: env, native: f.native}
}
func (f FunctionData) WithArgs(args uint) FunctionData {
return FunctionData{pos: f.pos, args: args, env: f.env, native: f.native}
}
func (f FunctionData) String(_ mem.Mem) (string, error) {
if f.native != nil {
return fmt.Sprintf("<fn(%d) native>", f.args), nil
} else {
return fmt.Sprintf("<fn(%d) %d:%d>", f.args, f.pos.Module, f.pos.PC), nil
}
}
type TypeRefData struct {
typeRef mem.Ptr
}
func (t TypeRefData) String(_ mem.Mem) (string, error) {
return fmt.Sprintf("<type %v>", t.typeRef), nil
}
func (t TypeRefData) TypeRef() mem.Ptr {
return t.typeRef
}
func (t TypeRefData) GetMethod(m mem.Mem, name string) (bool, FunctionData, error) {
cell, err := m.Get(t.typeRef)
if err != nil {
return false, FunctionData{}, err
}
typ := cell.(TypeCell).Get()
method, ok := typ.Methods[name]
return ok, method, nil
}
func (t TypeRefData) AddMethod(m mem.Mem, name string, method FunctionData) error {
cell, err := m.Get(t.typeRef)
if err != nil {
return err
}
typ := cell.(TypeCell).Get()
typ.Methods[name] = method
if err := m.Set(t.typeRef, TypeCell(typ)); err != nil {
return err
}
return nil
}
type ObjectData struct {
t mem.Ptr
obj mem.Ptr
}
func (o ObjectData) String(_ mem.Mem) (string, error) {
return fmt.Sprintf("<object %v>", o.obj), nil
}
func (o ObjectData) Ptr() mem.Ptr {
return o.obj
}
func (o ObjectData) Type() mem.Ptr {
return o.t
}
func (o ObjectData) WithType(t mem.Ptr) ObjectData {
return ObjectData{t: t, obj: o.obj}
}
|
