-
Notifications
You must be signed in to change notification settings - Fork 0
/
evaluator_context.go
81 lines (68 loc) · 1.35 KB
/
evaluator_context.go
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
package mathxf
import (
"context"
"errors"
"fmt"
)
type ValMap map[string]*Value
type ValElementMap map[string]*ValElement
type ValElement struct {
ValType ValType
IsSet bool
IsFunc bool
Val any
}
func NewConstValElement(val any, isFunc bool) *ValElement {
return &ValElement{
ValType: ConstVal,
IsFunc: isFunc,
Val: val,
}
}
func NewPublicValElement(val any) *ValElement {
return &ValElement{
ValType: PublicVal,
Val: val,
}
}
func NewPrivateValElement(val any) *ValElement {
return &ValElement{
ValType: PrivateVal,
Val: val,
}
}
type ParseECodeFn func(error) error
type ValType int
const (
PublicVal ValType = iota
PrivateVal
ConstVal
ResultVal
)
type EvaluatorContext struct {
context.Context
IsHighPrecision bool
ValMap ValElementMap
ResultMap map[string]ValMap
defResultKey string
parseErrFn ParseECodeFn
}
func NewEvaluatorContext(ctx context.Context) *EvaluatorContext {
res := EvaluatorContext{
Context: ctx,
IsHighPrecision: true,
ValMap: DefConst,
ResultMap: make(map[string]ValMap),
defResultKey: "res",
parseErrFn: ParseErr,
}
return &res
}
func ParseErr(err error) error {
if err == nil {
return nil
}
e := Cause(err)
line, col := e.Position()
return errors.New(fmt.Sprintf("line: %d, col: %d, %s", line, col, e.Message()))
}