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package ssa
import (
"fmt"
"strings"
)
// Signature is a function prototype.
type Signature struct {
// ID is a unique identifier for this signature used to lookup.
ID SignatureID
// Params and Results are the types of the parameters and results of the function.
Params, Results []Type
// used is true if this is used by the currently-compiled function.
// Debugging only.
used bool
}
// String implements fmt.Stringer.
func (s *Signature) String() string {
str := strings.Builder{}
str.WriteString(s.ID.String())
str.WriteString(": ")
if len(s.Params) > 0 {
for _, typ := range s.Params {
str.WriteString(typ.String())
}
} else {
str.WriteByte('v')
}
str.WriteByte('_')
if len(s.Results) > 0 {
for _, typ := range s.Results {
str.WriteString(typ.String())
}
} else {
str.WriteByte('v')
}
return str.String()
}
// SignatureID is an unique identifier used to lookup.
type SignatureID int
// String implements fmt.Stringer.
func (s SignatureID) String() string {
return fmt.Sprintf("sig%d", s)
}
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