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use crate::file_format::{Constant, SignatureToken};
use move_core_types::value::{MoveTypeLayout, MoveValue};
fn sig_to_ty(sig: &SignatureToken) -> Option<MoveTypeLayout> {
match sig {
SignatureToken::Signer => Some(MoveTypeLayout::Signer),
SignatureToken::Address => Some(MoveTypeLayout::Address),
SignatureToken::Bool => Some(MoveTypeLayout::Bool),
SignatureToken::U8 => Some(MoveTypeLayout::U8),
SignatureToken::U64 => Some(MoveTypeLayout::U64),
SignatureToken::U128 => Some(MoveTypeLayout::U128),
SignatureToken::Vector(v) => Some(MoveTypeLayout::Vector(Box::new(sig_to_ty(v.as_ref())?))),
SignatureToken::Reference(_)
| SignatureToken::MutableReference(_)
| SignatureToken::Struct(_)
| SignatureToken::TypeParameter(_)
| SignatureToken::StructInstantiation(_, _) => None,
}
}
fn ty_to_sig(ty: &MoveTypeLayout) -> Option<SignatureToken> {
match ty {
MoveTypeLayout::Address => Some(SignatureToken::Address),
MoveTypeLayout::Signer => Some(SignatureToken::Signer),
MoveTypeLayout::U8 => Some(SignatureToken::U8),
MoveTypeLayout::U64 => Some(SignatureToken::U64),
MoveTypeLayout::U128 => Some(SignatureToken::U128),
MoveTypeLayout::Vector(v) => Some(SignatureToken::Vector(Box::new(ty_to_sig(v.as_ref())?))),
MoveTypeLayout::Struct(_) => None,
MoveTypeLayout::Bool => Some(SignatureToken::Bool),
}
}
impl Constant {
pub fn serialize_constant(ty: &MoveTypeLayout, v: &MoveValue) -> Option<Self> {
Some(Self {
type_: ty_to_sig(ty)?,
data: v.simple_serialize()?,
})
}
pub fn deserialize_constant(&self) -> Option<MoveValue> {
let ty = sig_to_ty(&self.type_)?;
MoveValue::simple_deserialize(&self.data, &ty).ok()
}
}