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const.go
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const.go
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package ssa
import (
"fmt"
)
func init() {
ConstMap[nil] = &Const{
anNode: NewNode(),
value: nil,
typ: BasicTypes[Null],
str: "nil",
Unary: 0,
}
ConstMap[struct{}{}] = &Const{
anNode: NewNode(),
value: struct{}{},
typ: BasicTypes[Any],
str: "any",
Unary: 0,
}
}
func NewNil() *Const {
return ConstMap[nil]
}
func NewAny() *Const {
return ConstMap[struct{}{}]
}
var (
ConstMap = make(map[any]*Const)
)
// create const
func NewConstWithUnary(i any, un int) *Const {
c := NewConst(i)
c.Unary = un
return c
}
func NewConst(i any) *Const {
// after update i
if c, ok := ConstMap[i]; ok {
return c
}
// build new const
typ := GetType(i)
c := &Const{
anNode: NewNode(),
value: i,
typ: typ,
str: fmt.Sprintf("%v", i),
}
// const should same
// assert newConst(1) ==newConst(1)
ConstMap[i] = c
return c
}
func (c *Const) GetTypeKind() TypeKind {
return c.typ.GetTypeKind()
}
func (c *Const) IsBoolean() bool {
return c.typ.GetTypeKind() == Boolean
}
func (c *Const) Boolean() bool {
return c.value.(bool)
}
func (c *Const) IsNumber() bool {
return c.typ.GetTypeKind() == Number
}
func (c *Const) Number() int64 {
switch ret := c.value.(type) {
case int:
return int64(ret)
case int8:
return int64(ret)
case int16:
return int64(ret)
case int32:
return int64(ret)
case int64:
return ret
case uint:
return int64(ret)
case uint8:
return int64(ret)
case uint16:
return int64(ret)
case uint32:
return int64(ret)
case uint64:
return int64(ret)
}
return 0
}
func (c *Const) IsFloat() bool {
return c.typ.GetTypeKind() == Number
}
func (c *Const) Float() float64 {
switch ret := c.value.(type) {
case float32:
return float64(ret)
case float64:
return ret
}
return float64(c.Number())
}
func (c *Const) IsString() bool {
return c.typ.GetTypeKind() == String
}
func (c *Const) VarString() string {
return c.value.(string)
}