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Remove oparg builders by ShaharNaveh · Pull Request #7537 · RustPython/RustPython · GitHub

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Remove oparg builders #7537

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Merged
youknowone merged 1 commit into from
Mar 30, 2026
Conversation 1 Commits 1 Checks 14 Files changed
Merged

Remove oparg builders #7537

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34 changes: 6 additions & 28 deletions crates/codegen/src/compile.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -9041,20 +9041,14 @@ impl Compiler {
/// Emit LOAD_ATTR for attribute access (method=false).
/// Encodes: (name_idx << 1) | 0
fn emit_load_attr(&mut self, name_idx: u32) {
let encoded = LoadAttr::builder()
.name_idx(name_idx)
.is_method(false)
.build();
let encoded = LoadAttr::new(name_idx, false);
self.emit_arg(encoded, |namei| Instruction::LoadAttr { namei })
}

/// Emit LOAD_ATTR with method flag set (for method calls).
/// Encodes: (name_idx << 1) | 1
fn emit_load_attr_method(&mut self, name_idx: u32) {
let encoded = LoadAttr::builder()
.name_idx(name_idx)
.is_method(true)
.build();
let encoded = LoadAttr::new(name_idx, true);
self.emit_arg(encoded, |namei| Instruction::LoadAttr { namei })
}

Expand All @@ -9068,44 +9062,28 @@ impl Compiler {
/// Emit LOAD_SUPER_ATTR for 2-arg super().attr access.
/// Encodes: (name_idx << 2) | 0b10 (method=0, class=1)
fn emit_load_super_attr(&mut self, name_idx: u32) {
let encoded = LoadSuperAttr::builder()
.name_idx(name_idx)
.is_load_method(false)
.has_class(true)
.build();
let encoded = LoadSuperAttr::new(name_idx, false, true);
self.emit_arg(encoded, |namei| Instruction::LoadSuperAttr { namei })
}

/// Emit LOAD_SUPER_ATTR for 2-arg super().method() call.
/// Encodes: (name_idx << 2) | 0b11 (method=1, class=1)
fn emit_load_super_method(&mut self, name_idx: u32) {
let encoded = LoadSuperAttr::builder()
.name_idx(name_idx)
.is_load_method(true)
.has_class(true)
.build();
let encoded = LoadSuperAttr::new(name_idx, true, true);
self.emit_arg(encoded, |namei| Instruction::LoadSuperAttr { namei })
}

/// Emit LOAD_SUPER_ATTR for 0-arg super().attr access.
/// Encodes: (name_idx << 2) | 0b00 (method=0, class=0)
fn emit_load_zero_super_attr(&mut self, name_idx: u32) {
let encoded = LoadSuperAttr::builder()
.name_idx(name_idx)
.is_load_method(false)
.has_class(false)
.build();
let encoded = LoadSuperAttr::new(name_idx, false, false);
self.emit_arg(encoded, |namei| Instruction::LoadSuperAttr { namei })
}

/// Emit LOAD_SUPER_ATTR for 0-arg super().method() call.
/// Encodes: (name_idx << 2) | 0b01 (method=1, class=0)
fn emit_load_zero_super_method(&mut self, name_idx: u32) {
let encoded = LoadSuperAttr::builder()
.name_idx(name_idx)
.is_load_method(true)
.has_class(false)
.build();
let encoded = LoadSuperAttr::new(name_idx, true, false);
self.emit_arg(encoded, |namei| Instruction::LoadSuperAttr { namei })
}

Expand Down
74 changes: 4 additions & 70 deletions crates/compiler-core/src/bytecode/oparg.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -918,8 +918,8 @@ impl VarNums {

impl LoadAttr {
#[must_use]
pub fn builder() -> LoadAttrBuilder {
LoadAttrBuilder::default()
pub const fn new(name_idx: u32, is_method: bool) -> Self {
Self::from_u32((name_idx << 1) | (is_method as u32))
}

#[must_use]
Expand All @@ -933,36 +933,10 @@ impl LoadAttr {
}
}

#[derive(Clone, Copy, Default)]
pub struct LoadAttrBuilder {
name_idx: u32,
is_method: bool,
}

impl LoadAttrBuilder {
#[must_use]
pub const fn build(self) -> LoadAttr {
let value = (self.name_idx << 1) | (self.is_method as u32);
LoadAttr::from_u32(value)
}

#[must_use]
pub const fn name_idx(mut self, value: u32) -> Self {
self.name_idx = value;
self
}

#[must_use]
pub const fn is_method(mut self, value: bool) -> Self {
self.is_method = value;
self
}
}

impl LoadSuperAttr {
#[must_use]
pub fn builder() -> LoadSuperAttrBuilder {
LoadSuperAttrBuilder::default()
pub const fn new(name_idx: u32, is_load_method: bool, has_class: bool) -> Self {
Self::from_u32((name_idx << 2) | (is_load_method as u32) | ((has_class as u32) << 1))
}

#[must_use]
Expand All @@ -980,43 +954,3 @@ impl LoadSuperAttr {
(self.0 & 2) == 2
}
}

#[derive(Clone, Copy, Default)]
pub struct LoadSuperAttrBuilder {
name_idx: u32,
is_load_method: bool,
has_class: bool,
}

impl LoadSuperAttrBuilder {
#[must_use]
pub const fn build(self) -> LoadSuperAttr {
let value =
(self.name_idx << 2) | ((self.has_class as u32) << 1) | (self.is_load_method as u32);
LoadSuperAttr::from_u32(value)
}

#[must_use]
pub const fn name_idx(mut self, value: u32) -> Self {
self.name_idx = value;
self
}

#[must_use]
pub const fn is_load_method(mut self, value: bool) -> Self {
self.is_load_method = value;
self
}

#[must_use]
pub const fn has_class(mut self, value: bool) -> Self {
self.has_class = value;
self
}
}

impl From<LoadSuperAttrBuilder> for LoadSuperAttr {
fn from(builder: LoadSuperAttrBuilder) -> Self {
builder.build()
}
}
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