爱特每羊队
43 lines
1.8 KiB
Rust
43 lines
1.8 KiB
Rust
//! 类静态字段/元素 emit：`emit_class_static_elements`。
|
||
|
||
use crate::{CompileCtx, Emitter};
|
||
use oxide_ir::operand::Operand;
|
||
use oxide_parser::{ClassElement, PropertyKey};
|
||
|
||
impl Emitter {
|
||
/// Emit static field initializers and static blocks in source order.
|
||
/// JS class semantics interleave them (e.g. `static x = 1; static {
|
||
/// this.y = 1 } static z = this.y + 1` must run in that order). Emitting
|
||
/// all fields before all blocks would make `z` read `y` before it is set.
|
||
pub(crate) fn emit_class_static_elements(
|
||
&self, elements: &[ClassElement], ctor_reg: u8, ctx: &mut CompileCtx,
|
||
) -> Result<(), String> {
|
||
let saved_static_this = ctx.static_block_this_reg;
|
||
ctx.static_block_this_reg = Some(ctor_reg);
|
||
for element in elements {
|
||
match element {
|
||
ClassElement::PropertyDefinition(prop) => {
|
||
let prop = prop.as_ref();
|
||
if prop.r#static {
|
||
if let PropertyKey::PrivateIdentifier(private) = &prop.key {
|
||
self.emit_private_field_init(Operand::Reg(ctor_reg as u32), private.name.as_str(), prop.value.as_ref(), ctx)?;
|
||
} else {
|
||
self.emit_public_field_init(Operand::Reg(ctor_reg as u32), &prop.key, prop.computed, prop.value.as_ref(), ctx)?;
|
||
}
|
||
}
|
||
}
|
||
ClassElement::StaticBlock(block) => {
|
||
ctx.push_scope();
|
||
for stmt in &block.body {
|
||
self.emit_statement(stmt, ctx)?;
|
||
}
|
||
ctx.pop_scope();
|
||
}
|
||
_ => {}
|
||
}
|
||
}
|
||
ctx.static_block_this_reg = saved_static_this;
|
||
Ok(())
|
||
}
|
||
}
|