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Encode inscriptions with minimal opcodes #4024

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Encode inscriptions with minimal opcodes #4024

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81 changes: 53 additions & 28 deletions src/inscription.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -118,59 +118,84 @@ impl Inscription {
bytes
}

pub(crate) fn append_reveal_script_to_builder(
&self,
mut builder: script::Builder,
) -> script::Builder {
builder = builder
.push_opcode(opcodes::OP_FALSE)
.push_opcode(opcodes::all::OP_IF)
.push_slice(envelope::PROTOCOL_ID);
pub(crate) fn payload(&self) -> Vec<Vec<u8>> {
let mut payload = Vec::new();

if let Some(content_type) = self.content_type.clone() {
builder = builder
.push_slice(envelope::CONTENT_TYPE_TAG)
.push_slice(PushBytesBuf::try_from(content_type).unwrap());
payload.push(envelope::CONTENT_TYPE_TAG.into());
payload.push(content_type);
}

if let Some(content_encoding) = self.content_encoding.clone() {
builder = builder
.push_slice(envelope::CONTENT_ENCODING_TAG)
.push_slice(PushBytesBuf::try_from(content_encoding).unwrap());
payload.push(envelope::CONTENT_ENCODING_TAG.into());
payload.push(content_encoding);
}

if let Some(protocol) = self.metaprotocol.clone() {
builder = builder
.push_slice(envelope::METAPROTOCOL_TAG)
.push_slice(PushBytesBuf::try_from(protocol).unwrap());
if let Some(metaprotocol) = self.metaprotocol.clone() {
payload.push(envelope::METAPROTOCOL_TAG.into());
payload.push(metaprotocol);
}

if let Some(parent) = self.parent.clone() {
builder = builder
.push_slice(envelope::PARENT_TAG)
.push_slice(PushBytesBuf::try_from(parent).unwrap());
payload.push(envelope::PARENT_TAG.into());
payload.push(parent);
}

if let Some(pointer) = self.pointer.clone() {
builder = builder
.push_slice(envelope::POINTER_TAG)
.push_slice(PushBytesBuf::try_from(pointer).unwrap());
payload.push(envelope::POINTER_TAG.into());
payload.push(pointer);
}

if let Some(metadata) = &self.metadata {
for chunk in metadata.chunks(520) {
builder = builder.push_slice(envelope::METADATA_TAG);
builder = builder.push_slice(PushBytesBuf::try_from(chunk.to_vec()).unwrap());
payload.push(envelope::METADATA_TAG.into());
payload.push(chunk.into());
}
}

if let Some(body) = &self.body {
builder = builder.push_slice(envelope::BODY_TAG);
payload.push(envelope::BODY_TAG.into());
for chunk in body.chunks(520) {
builder = builder.push_slice(PushBytesBuf::try_from(chunk.to_vec()).unwrap());
payload.push(chunk.into());
}
}

payload
}

pub(crate) fn append_reveal_script_to_builder(
&self,
mut builder: script::Builder,
) -> script::Builder {
builder = builder
.push_opcode(opcodes::OP_FALSE)
.push_opcode(opcodes::all::OP_IF)
.push_slice(envelope::PROTOCOL_ID);

for data in self.payload() {
builder = match data.as_slice() {
[] => builder.push_opcode(opcodes::OP_FALSE),
[1] => builder.push_opcode(opcodes::all::OP_PUSHNUM_1),
[2] => builder.push_opcode(opcodes::all::OP_PUSHNUM_2),
[3] => builder.push_opcode(opcodes::all::OP_PUSHNUM_3),
[4] => builder.push_opcode(opcodes::all::OP_PUSHNUM_4),
[5] => builder.push_opcode(opcodes::all::OP_PUSHNUM_5),
[6] => builder.push_opcode(opcodes::all::OP_PUSHNUM_6),
[7] => builder.push_opcode(opcodes::all::OP_PUSHNUM_7),
[8] => builder.push_opcode(opcodes::all::OP_PUSHNUM_8),
[9] => builder.push_opcode(opcodes::all::OP_PUSHNUM_9),
[10] => builder.push_opcode(opcodes::all::OP_PUSHNUM_10),
[11] => builder.push_opcode(opcodes::all::OP_PUSHNUM_11),
[12] => builder.push_opcode(opcodes::all::OP_PUSHNUM_12),
[13] => builder.push_opcode(opcodes::all::OP_PUSHNUM_13),
[14] => builder.push_opcode(opcodes::all::OP_PUSHNUM_14),
[15] => builder.push_opcode(opcodes::all::OP_PUSHNUM_15),
[16] => builder.push_opcode(opcodes::all::OP_PUSHNUM_16),
[0x81] => builder.push_opcode(opcodes::all::OP_PUSHNUM_NEG1),
_ => builder.push_slice(PushBytesBuf::try_from(data).unwrap()),
};
}

builder.push_opcode(opcodes::all::OP_ENDIF)
}

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