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package objects
import (
"github.com/d5/tengo/compiler/source"
"github.com/d5/tengo/compiler/token"
)
// CompiledFunction represents a compiled function.
type CompiledFunction struct {
Instructions []byte
NumLocals int // number of local variables (including function parameters)
NumParameters int
SourceMap map[int]source.Pos
}
// TypeName returns the name of the type.
func (o *CompiledFunction) TypeName() string {
return "compiled-function"
}
func (o *CompiledFunction) String() string {
return "<compiled-function>"
}
// BinaryOp returns another object that is the result of
// a given binary operator and a right-hand side object.
func (o *CompiledFunction) BinaryOp(op token.Token, rhs Object) (Object, error) {
return nil, ErrInvalidOperator
}
// Copy returns a copy of the type.
func (o *CompiledFunction) Copy() Object {
return &CompiledFunction{
Instructions: append([]byte{}, o.Instructions...),
NumLocals: o.NumLocals,
NumParameters: o.NumParameters,
}
}
// IsFalsy returns true if the value of the type is falsy.
func (o *CompiledFunction) IsFalsy() bool {
return false
}
// Equals returns true if the value of the type
// is equal to the value of another object.
func (o *CompiledFunction) Equals(x Object) bool {
return false
}
// SourcePos returns the source position of the instruction at ip.
func (o *CompiledFunction) SourcePos(ip int) source.Pos {
for ip >= 0 {
if p, ok := o.SourceMap[ip]; ok {
return p
}
ip--
}
return source.NoPos
}
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