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tchardingtcharding
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Run cargo fmt
Run the formatter and commit only the changes to `owned`, no other changes.
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‎bitcoin/src/blockdata/script/owned.rs‎

Lines changed: 110 additions & 114 deletions
Original file line numberDiff line numberDiff line change
@@ -91,137 +91,137 @@ impl ScriptBuf {
9191

9292
mod tmp_pub {
9393
use super::*;
94-
impl ScriptBuf {
95-
/// Creates a new script builder
96-
pub fn builder() -> Builder { Builder::new() }
94+
impl ScriptBuf {
95+
/// Creates a new script builder
96+
pub fn builder() -> Builder { Builder::new() }
9797

98-
/// Generates OP_RETURN-type of scriptPubkey for the given data.
99-
pub fn new_op_return<T: AsRef<PushBytes>>(data: T) -> Self {
100-
Builder::new().push_opcode(OP_RETURN).push_slice(data).into_script()
101-
}
98+
/// Generates OP_RETURN-type of scriptPubkey for the given data.
99+
pub fn new_op_return<T: AsRef<PushBytes>>(data: T) -> Self {
100+
Builder::new().push_opcode(OP_RETURN).push_slice(data).into_script()
101+
}
102102

103-
/// Creates a [`ScriptBuf`] from a hex string.
104-
pub fn from_hex(s: &str) -> Result<Self, hex::HexToBytesError> {
105-
let v = Vec::from_hex(s)?;
106-
Ok(ScriptBuf::from_bytes(v))
107-
}
103+
/// Creates a [`ScriptBuf`] from a hex string.
104+
pub fn from_hex(s: &str) -> Result<Self, hex::HexToBytesError> {
105+
let v = Vec::from_hex(s)?;
106+
Ok(ScriptBuf::from_bytes(v))
107+
}
108108

109-
/// Adds a single opcode to the script.
110-
pub fn push_opcode(&mut self, data: Opcode) { self.as_byte_vec().push(data.to_u8()); }
109+
/// Adds a single opcode to the script.
110+
pub fn push_opcode(&mut self, data: Opcode) { self.as_byte_vec().push(data.to_u8()); }
111111

112-
/// Adds instructions to push some arbitrary data onto the stack.
113-
pub fn push_slice<T: AsRef<PushBytes>>(&mut self, data: T) {
114-
let data = data.as_ref();
115-
self.reserve(Self::reserved_len_for_slice(data.len()));
116-
self.push_slice_no_opt(data);
117-
}
112+
/// Adds instructions to push some arbitrary data onto the stack.
113+
pub fn push_slice<T: AsRef<PushBytes>>(&mut self, data: T) {
114+
let data = data.as_ref();
115+
self.reserve(Self::reserved_len_for_slice(data.len()));
116+
self.push_slice_no_opt(data);
117+
}
118118

119-
/// Add a single instruction to the script.
120-
///
121-
/// # Panics
122-
///
123-
/// The method panics if the instruction is a data push with length greater or equal to
124-
/// 0x100000000.
125-
pub fn push_instruction(&mut self, instruction: Instruction<'_>) {
126-
match instruction {
127-
Instruction::Op(opcode) => self.push_opcode(opcode),
128-
Instruction::PushBytes(bytes) => self.push_slice(bytes),
119+
/// Add a single instruction to the script.
120+
///
121+
/// # Panics
122+
///
123+
/// The method panics if the instruction is a data push with length greater or equal to
124+
/// 0x100000000.
125+
pub fn push_instruction(&mut self, instruction: Instruction<'_>) {
126+
match instruction {
127+
Instruction::Op(opcode) => self.push_opcode(opcode),
128+
Instruction::PushBytes(bytes) => self.push_slice(bytes),
129+
}
129130
}
130-
}
131131

132-
/// Like push_instruction, but avoids calling `reserve` to not re-check the length.
133-
pub fn push_instruction_no_opt(&mut self, instruction: Instruction<'_>) {
134-
match instruction {
135-
Instruction::Op(opcode) => self.push_opcode(opcode),
136-
Instruction::PushBytes(bytes) => self.push_slice_no_opt(bytes),
132+
/// Like push_instruction, but avoids calling `reserve` to not re-check the length.
133+
pub fn push_instruction_no_opt(&mut self, instruction: Instruction<'_>) {
134+
match instruction {
135+
Instruction::Op(opcode) => self.push_opcode(opcode),
136+
Instruction::PushBytes(bytes) => self.push_slice_no_opt(bytes),
137+
}
137138
}
138-
}
139139

140-
/// Adds an `OP_VERIFY` to the script or replaces the last opcode with VERIFY form.
141-
///
142-
/// Some opcodes such as `OP_CHECKSIG` have a verify variant that works as if `VERIFY` was
143-
/// in the script right after. To save space this function appends `VERIFY` only if
144-
/// the most-recently-added opcode *does not* have an alternate `VERIFY` form. If it does
145-
/// the last opcode is replaced. E.g., `OP_CHECKSIG` will become `OP_CHECKSIGVERIFY`.
146-
///
147-
/// Note that existing `OP_*VERIFY` opcodes do not lead to the instruction being ignored
148-
/// because `OP_VERIFY` consumes an item from the stack so ignoring them would change the
149-
/// semantics.
150-
///
151-
/// This function needs to iterate over the script to find the last instruction. Prefer
152-
/// `Builder` if you're creating the script from scratch or if you want to push `OP_VERIFY`
153-
/// multiple times.
154-
pub fn scan_and_push_verify(&mut self) { self.push_verify(self.last_opcode()); }
155-
}
140+
/// Adds an `OP_VERIFY` to the script or replaces the last opcode with VERIFY form.
141+
///
142+
/// Some opcodes such as `OP_CHECKSIG` have a verify variant that works as if `VERIFY` was
143+
/// in the script right after. To save space this function appends `VERIFY` only if
144+
/// the most-recently-added opcode *does not* have an alternate `VERIFY` form. If it does
145+
/// the last opcode is replaced. E.g., `OP_CHECKSIG` will become `OP_CHECKSIGVERIFY`.
146+
///
147+
/// Note that existing `OP_*VERIFY` opcodes do not lead to the instruction being ignored
148+
/// because `OP_VERIFY` consumes an item from the stack so ignoring them would change the
149+
/// semantics.
150+
///
151+
/// This function needs to iterate over the script to find the last instruction. Prefer
152+
/// `Builder` if you're creating the script from scratch or if you want to push `OP_VERIFY`
153+
/// multiple times.
154+
pub fn scan_and_push_verify(&mut self) { self.push_verify(self.last_opcode()); }
155+
}
156156
}
157157

158158
mod tmp_priv {
159159
use super::*;
160-
impl ScriptBuf {
161-
/// Pretends to convert `&mut ScriptBuf` to `&mut Vec<u8>` so that it can be modified.
162-
///
163-
/// Note: if the returned value leaks the original `ScriptBuf` will become empty.
164-
pub(crate) fn as_byte_vec(&mut self) -> ScriptBufAsVec<'_> {
165-
let vec = core::mem::take(self).into_bytes();
166-
ScriptBufAsVec(self, vec)
167-
}
160+
impl ScriptBuf {
161+
/// Pretends to convert `&mut ScriptBuf` to `&mut Vec<u8>` so that it can be modified.
162+
///
163+
/// Note: if the returned value leaks the original `ScriptBuf` will become empty.
164+
pub(crate) fn as_byte_vec(&mut self) -> ScriptBufAsVec<'_> {
165+
let vec = core::mem::take(self).into_bytes();
166+
ScriptBufAsVec(self, vec)
167+
}
168168

169-
/// Pushes the slice without reserving
170-
pub(crate) fn push_slice_no_opt(&mut self, data: &PushBytes) {
171-
let mut this = self.as_byte_vec();
172-
// Start with a PUSH opcode
173-
match data.len().to_u64() {
174-
n if n < opcodes::Ordinary::OP_PUSHDATA1 as u64 => {
175-
this.push(n as u8);
176-
}
177-
n if n < 0x100 => {
178-
this.push(opcodes::Ordinary::OP_PUSHDATA1.to_u8());
179-
this.push(n as u8);
180-
}
181-
n if n < 0x10000 => {
182-
this.push(opcodes::Ordinary::OP_PUSHDATA2.to_u8());
183-
this.push((n % 0x100) as u8);
184-
this.push((n / 0x100) as u8);
185-
}
186-
// `PushBytes` enforces len < 0x100000000
187-
n => {
188-
this.push(opcodes::Ordinary::OP_PUSHDATA4.to_u8());
189-
this.push((n % 0x100) as u8);
190-
this.push(((n / 0x100) % 0x100) as u8);
191-
this.push(((n / 0x10000) % 0x100) as u8);
192-
this.push((n / 0x1000000) as u8);
169+
/// Pushes the slice without reserving
170+
pub(crate) fn push_slice_no_opt(&mut self, data: &PushBytes) {
171+
let mut this = self.as_byte_vec();
172+
// Start with a PUSH opcode
173+
match data.len().to_u64() {
174+
n if n < opcodes::Ordinary::OP_PUSHDATA1 as u64 => {
175+
this.push(n as u8);
176+
}
177+
n if n < 0x100 => {
178+
this.push(opcodes::Ordinary::OP_PUSHDATA1.to_u8());
179+
this.push(n as u8);
180+
}
181+
n if n < 0x10000 => {
182+
this.push(opcodes::Ordinary::OP_PUSHDATA2.to_u8());
183+
this.push((n % 0x100) as u8);
184+
this.push((n / 0x100) as u8);
185+
}
186+
// `PushBytes` enforces len < 0x100000000
187+
n => {
188+
this.push(opcodes::Ordinary::OP_PUSHDATA4.to_u8());
189+
this.push((n % 0x100) as u8);
190+
this.push(((n / 0x100) % 0x100) as u8);
191+
this.push(((n / 0x10000) % 0x100) as u8);
192+
this.push((n / 0x1000000) as u8);
193+
}
193194
}
195+
// Then push the raw bytes
196+
this.extend_from_slice(data.as_bytes());
194197
}
195-
// Then push the raw bytes
196-
this.extend_from_slice(data.as_bytes());
197-
}
198198

199-
/// Computes the sum of `len` and the length of an appropriate push opcode.
200-
pub(crate) fn reserved_len_for_slice(len: usize) -> usize {
201-
len + match len {
202-
0..=0x4b => 1,
203-
0x4c..=0xff => 2,
204-
0x100..=0xffff => 3,
205-
// we don't care about oversized, the other fn will panic anyway
206-
_ => 5,
199+
/// Computes the sum of `len` and the length of an appropriate push opcode.
200+
pub(crate) fn reserved_len_for_slice(len: usize) -> usize {
201+
len + match len {
202+
0..=0x4b => 1,
203+
0x4c..=0xff => 2,
204+
0x100..=0xffff => 3,
205+
// we don't care about oversized, the other fn will panic anyway
206+
_ => 5,
207+
}
207208
}
208-
}
209209

210-
/// Adds an `OP_VERIFY` to the script or changes the most-recently-added opcode to `VERIFY`
211-
/// alternative.
212-
///
213-
/// See the public fn [`Self::scan_and_push_verify`] to learn more.
214-
pub(crate) fn push_verify(&mut self, last_opcode: Option<Opcode>) {
215-
match opcode_to_verify(last_opcode) {
216-
Some(opcode) => {
217-
self.as_byte_vec().pop();
218-
self.push_opcode(opcode);
210+
/// Adds an `OP_VERIFY` to the script or changes the most-recently-added opcode to `VERIFY`
211+
/// alternative.
212+
///
213+
/// See the public fn [`Self::scan_and_push_verify`] to learn more.
214+
pub(crate) fn push_verify(&mut self, last_opcode: Option<Opcode>) {
215+
match opcode_to_verify(last_opcode) {
216+
Some(opcode) => {
217+
self.as_byte_vec().pop();
218+
self.push_opcode(opcode);
219+
}
220+
None => self.push_opcode(OP_VERIFY),
219221
}
220-
None => self.push_opcode(OP_VERIFY),
221222
}
222223
}
223224
}
224-
}
225225

226226
impl<'a> core::iter::FromIterator<Instruction<'a>> for ScriptBuf {
227227
fn from_iter<T>(iter: T) -> Self
@@ -280,15 +280,11 @@ pub(crate) struct ScriptBufAsVec<'a>(&'a mut ScriptBuf, Vec<u8>);
280280
impl<'a> core::ops::Deref for ScriptBufAsVec<'a> {
281281
type Target = Vec<u8>;
282282

283-
fn deref(&self) -> &Self::Target {
284-
&self.1
285-
}
283+
fn deref(&self) -> &Self::Target { &self.1 }
286284
}
287285

288286
impl<'a> core::ops::DerefMut for ScriptBufAsVec<'a> {
289-
fn deref_mut(&mut self) -> &mut Self::Target {
290-
&mut self.1
291-
}
287+
fn deref_mut(&mut self) -> &mut Self::Target { &mut self.1 }
292288
}
293289

294290
impl<'a> Drop for ScriptBufAsVec<'a> {

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