refactor: 拆分 oxide_emit 为独立 emit pass crate（依赖倒置）

2026-10-26 11:41:13 +08:00 · 2026-08-05 20:13:18 +08:00
parent 4f670eb7fd
commit 7c8f19f61a
62 changed files with 1045 additions and 993 deletions
@@ -0,0 +1,51 @@
+use crate::{CompileCtx, Emitter};
+use oxide_ir::inst::Inst;
+use oxide_ir::operand::Operand;
+use oxide_bytecode::module::Constant;
+
+impl Emitter {
+    pub(crate) fn emit_template_literal_expression(
+        &self, tl: &oxide_parser::TemplateLiteral, ctx: &mut CompileCtx,
+    ) -> Result<u8, String> {
+        let r = ctx.alloc_reg();
+        let quasis = &tl.quasis;
+        let expressions = &tl.expressions;
+        let segment_count = quasis.len() + expressions.len();
+
+        let expr_regs: Vec<u8> = expressions
+            .iter()
+            .map(|e| self.emit_expression(e, ctx))
+            .collect::<Result<Vec<_>, _>>()?;
+
+        let quasi_const_idxs: Vec<u16> = quasis
+            .iter()
+            .map(|q| {
+                let s = q.value.cooked.as_ref().map(|c| c.to_string()).unwrap_or_default();
+                ctx.add_constant(Constant::String(s))
+            })
+            .collect();
+
+        let total_len_hint: usize = quasis
+            .iter()
+            .map(|q| q.value.cooked.as_ref().map(|c| c.len()).unwrap_or(0))
+            .sum();
+
+        let mut parts = Vec::with_capacity(quasi_const_idxs.len() * 2);
+        let mut expr_iter = expr_regs.iter();
+        for const_idx in quasi_const_idxs.iter() {
+            parts.push(*const_idx as u32 & 0x7FFF_FFFF);
+            if let Some(expr_reg) = expr_iter.next() {
+                parts.push(0x8000_0000u32 | (*expr_reg as u32));
+            }
+        }
+
+        ctx.inst(Inst::template_str(
+            Operand::Reg(r as u32),
+            segment_count as u32,
+            total_len_hint as u16,
+            &parts,
+        ));
+
+        Ok(r)
+    }
+}