-
Notifications
You must be signed in to change notification settings - Fork 279
/
types.go
113 lines (100 loc) · 2.44 KB
/
types.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
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
// Copyright 2023 CUE Authors
//
// 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 wasm
import (
"cuelang.org/go/internal/core/adt"
"cuelang.org/go/internal/core/compile"
"cuelang.org/go/internal/pkg"
)
// typ represents the Go and CUE types that we can exchange with Wasm.
// It doesn't map directly to Wasm types, for example Wasm doesn't
// have a bool type, but we can use this type as a marker to remember
// to convert between a Wasm integer and a Go bool type.
type typ string
const (
_bool typ = "bool"
_int8 typ = "int8"
_int16 typ = "int16 "
_int32 typ = "int32"
_int64 typ = "int64"
_uint8 typ = "uint8"
_uint16 typ = "uint16"
_uint32 typ = "uint32"
_uint64 typ = "uint64"
_float32 typ = "float32"
_float64 typ = "float64"
)
func (t typ) kind() adt.Kind {
switch t {
case _bool:
return adt.BoolKind
case _int8, _int16, _int32, _int64, _uint8, _uint16, _uint32, _uint64:
return adt.IntKind
case _float32, _float64:
return adt.FloatKind
}
return adt.BottomKind
}
func (t typ) value() adt.Value {
if isScalar(t) {
return predeclared(string(t)).(adt.Value)
}
return nil
}
func (t typ) param() pkg.Param {
p := pkg.Param{
Kind: t.kind(),
Value: t.value(),
}
return p
}
func predeclared(s string) adt.Expr {
switch s {
case "bool":
return &adt.BasicType{K: adt.BoolKind}
case "int8", "int16", "int32", "int64",
"uint8", "uint16", "uint32", "uint64",
"float32", "float64":
return compile.LookupRange(s)
}
panic("unexpected type")
}
func params(f fnTyp) []pkg.Param {
var params []pkg.Param
for _, v := range f.args {
params = append(params, v.param())
}
return params
}
func isScalar(t typ) bool {
return is32(t) || is64(t)
}
func is32(t typ) bool {
switch t {
case _bool, _int8, _int16, _int32, _uint8, _uint16, _uint32:
return true
}
return false
}
func is64(t typ) bool {
switch t {
case _uint64, _int64:
return true
}
return false
}
type fnTyp struct {
args []typ
ret typ
}