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

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This commit is contained in:
彭俊皓
2026-08-05 20:13:18 +08:00
parent 4f670eb7fd
commit 7c8f19f61a
62 changed files with 1045 additions and 993 deletions
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crates/oxide_emit/src/expr/assignment.rs
+174
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use crate::{CompileCtx, Emitter};
use oxide_ir::inst::Inst;
use oxide_ir::operand::Operand;
use oxide_bytecode::module::Constant;
use oxide_bytecode::opcode::OpCode;
use oxide_parser::AssignmentOperator;
impl Emitter {
pub(crate) fn emit_assignment_expression(
&self, assign: &oxide_parser::AssignmentExpression, ctx: &mut CompileCtx,
) -> Result<u8, String> {
if let oxide_parser::AssignmentTarget::StaticMemberExpression(member) = &assign.left {
if let Some(logical_op) = assign.operator.to_logical_operator() {
let store_label = ctx.next_label_id();
let end_label = ctx.next_label_id();
let obj_reg = self.emit_expression(&member.object, ctx)?;
let prop_name = member.property.name.as_str();
let idx = ctx.add_constant(Constant::String(prop_name.to_string()));
let key_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(key_reg as u32), idx));
let result_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(result_reg as u32), Operand::Reg(obj_reg as u32), Operand::None));
ctx.inst(Inst::ic_get(Operand::Reg(result_reg as u32), Operand::Reg(key_reg as u32)));
self.emit_logical_assign_test(logical_op, result_reg, store_label, end_label, ctx)?;
ctx.labels.set_label_pos(store_label, ctx.insts.len());
let val_reg = self.emit_expression(&assign.right, ctx)?;
ctx.inst(Inst::ic_set(Operand::Reg(obj_reg as u32), Operand::Reg(val_reg as u32), Operand::Reg(key_reg as u32)));
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(result_reg as u32), Operand::Reg(val_reg as u32), Operand::None));
ctx.labels.set_label_pos(end_label, ctx.insts.len());
return Ok(result_reg);
}
let obj_reg = self.emit_expression(&member.object, ctx)?;
let val_reg = self.emit_expression(&assign.right, ctx)?;
let prop_name = member.property.name.as_str();
let idx = ctx.add_constant(Constant::String(prop_name.to_string()));
let key_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(key_reg as u32), idx));
if assign.operator != AssignmentOperator::Assign {
let obj = Operand::Reg(obj_reg as u32);
let val = Operand::Reg(val_reg as u32);
let key = Operand::Reg(key_reg as u32);
match assign.operator {
AssignmentOperator::Addition => ctx.inst(Inst::compound_member_add(obj, val, key)),
AssignmentOperator::Subtraction => ctx.inst(Inst::compound_member_sub(obj, val, key)),
AssignmentOperator::Multiplication => ctx.inst(Inst::compound_member_mul(obj, val, key)),
AssignmentOperator::Division => ctx.inst(Inst::compound_member_div(obj, val, key)),
AssignmentOperator::Remainder => ctx.inst(Inst::compound_member_mod(obj, val, key)),
AssignmentOperator::Exponential => ctx.inst(Inst::compound_member_exp(obj, val, key)),
_ => return Err(format!("compound assignment operator {:?} not supported", assign.operator)),
}
Ok(val_reg)
} else {
ctx.inst(Inst::ic_set(Operand::Reg(obj_reg as u32), Operand::Reg(val_reg as u32), Operand::Reg(key_reg as u32)));
Ok(val_reg)
}
} else if let oxide_parser::AssignmentTarget::ComputedMemberExpression(member) = &assign.left {
if let Some(logical_op) = assign.operator.to_logical_operator() {
let store_label = ctx.next_label_id();
let end_label = ctx.next_label_id();
let obj_reg = self.emit_expression(&member.object, ctx)?;
let key_reg = self.emit_expression(&member.expression, ctx)?;
let result_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::GET_PROP_DYNAMIC, Operand::Reg(obj_reg as u32), Operand::Reg(key_reg as u32), Operand::Reg(result_reg as u32)));
self.emit_logical_assign_test(logical_op, result_reg, store_label, end_label, ctx)?;
ctx.labels.set_label_pos(store_label, ctx.insts.len());
let val_reg = self.emit_expression(&assign.right, ctx)?;
ctx.inst(Inst::new(OpCode::SET_PROP_DYNAMIC, Operand::Reg(obj_reg as u32), Operand::Reg(key_reg as u32), Operand::Reg(val_reg as u32)));
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(result_reg as u32), Operand::Reg(val_reg as u32), Operand::None));
ctx.labels.set_label_pos(end_label, ctx.insts.len());
return Ok(result_reg);
}
let obj_reg = self.emit_expression(&member.object, ctx)?;
let key_reg = self.emit_expression(&member.expression, ctx)?;
let val_reg = self.emit_expression(&assign.right, ctx)?;
ctx.inst(Inst::new(OpCode::SET_PROP_DYNAMIC, Operand::Reg(obj_reg as u32), Operand::Reg(key_reg as u32), Operand::Reg(val_reg as u32)));
Ok(val_reg)
} else if let oxide_parser::AssignmentTarget::PrivateFieldExpression(member) = &assign.left {
if assign.operator != AssignmentOperator::Assign {
return Err("compound assignment to private fields not supported".into());
}
let obj_reg = self.emit_expression(&member.object, ctx)?;
let val_reg = self.emit_expression(&assign.right, ctx)?;
let key_reg = self.emit_private_id_reg(member.field.name.as_str(), ctx)?;
ctx.inst(Inst::new(OpCode::SET_PRIVATE, Operand::Reg(obj_reg as u32), Operand::Reg(val_reg as u32), Operand::Reg(key_reg as u32)));
Ok(val_reg)
} else if let oxide_parser::AssignmentTarget::AssignmentTargetIdentifier(id_ref) = &assign.left {
if assign.operator != AssignmentOperator::Assign {
if let Some(logical_op) = assign.operator.to_logical_operator() {
let store_label = ctx.next_label_id();
let end_label = ctx.next_label_id();
let name = id_ref.name.as_str();
let var_reg = ctx.lookup_or_global(name);
let result_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(result_reg as u32), Operand::Reg(var_reg as u32), Operand::None));
self.emit_logical_assign_test(logical_op, result_reg, store_label, end_label, ctx)?;
ctx.labels.set_label_pos(store_label, ctx.insts.len());
let val_reg = self.emit_expression(&assign.right, ctx)?;
let is_const = ctx.lookup_const_flag(name);
let const_flag = if is_const { 1 } else { 0 };
ctx.inst(Inst::new(OpCode::STORE_VAR, Operand::Reg(var_reg as u32), Operand::Reg(val_reg as u32), Operand::Imm(const_flag)));
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(result_reg as u32), Operand::Reg(val_reg as u32), Operand::None));
ctx.labels.set_label_pos(end_label, ctx.insts.len());
Ok(result_reg)
} else if assign.operator == AssignmentOperator::Addition
|| assign.operator == AssignmentOperator::Subtraction
|| assign.operator == AssignmentOperator::Multiplication
|| assign.operator == AssignmentOperator::Division
|| assign.operator == AssignmentOperator::Remainder
|| assign.operator == AssignmentOperator::Exponential
|| assign.operator == AssignmentOperator::BitwiseAnd
|| assign.operator == AssignmentOperator::BitwiseOR
|| assign.operator == AssignmentOperator::BitwiseXOR
|| assign.operator == AssignmentOperator::ShiftLeft
|| assign.operator == AssignmentOperator::ShiftRight
|| assign.operator == AssignmentOperator::ShiftRightZeroFill
{
let rhs = self.emit_expression(&assign.right, ctx)?;
let name = id_ref.name.as_str();
let var_reg = ctx.lookup_or_global(name);
let op = match assign.operator {
AssignmentOperator::Addition => OpCode::COMPOUND_ADD,
AssignmentOperator::Subtraction => OpCode::COMPOUND_SUB,
AssignmentOperator::Multiplication => OpCode::COMPOUND_MUL,
AssignmentOperator::Division => OpCode::COMPOUND_DIV,
AssignmentOperator::Remainder => OpCode::COMPOUND_MOD,
AssignmentOperator::Exponential => OpCode::COMPOUND_EXP,
AssignmentOperator::BitwiseAnd => OpCode::COMPOUND_AND,
AssignmentOperator::BitwiseOR => OpCode::COMPOUND_OR,
AssignmentOperator::BitwiseXOR => OpCode::COMPOUND_XOR,
AssignmentOperator::ShiftLeft => OpCode::COMPOUND_SHL,
AssignmentOperator::ShiftRight => OpCode::COMPOUND_SHR,
AssignmentOperator::ShiftRightZeroFill => OpCode::COMPOUND_USHR,
_ => return Err(format!("compound assignment operator {:?} not supported", assign.operator)),
};
ctx.inst(Inst::new(op, Operand::Reg(var_reg as u32), Operand::Reg(rhs as u32), Operand::None));
Ok(var_reg)
} else {
Err(format!("compound assignment operator {:?} not supported", assign.operator))
}
} else {
let val_reg = self.emit_expression(&assign.right, ctx)?;
let name = id_ref.name.as_str();
// Check if target is an upvalue reference
if let Some(uv_idx) = ctx.current_upvalue_captures.iter().position(|u| u.name == name) {
ctx.inst(Inst::new(OpCode::STORE_UPVALUE, Operand::None, Operand::Reg(val_reg as u32), Operand::Imm(uv_idx as u16)));
return Ok(val_reg);
}
// Check if target is a captured cell
if let Some(&cell_idx) = ctx.captured_bindings.get(name) {
ctx.inst(Inst::new(OpCode::CELL_SET, Operand::None, Operand::Reg(val_reg as u32), Operand::Imm(cell_idx as u16)));
return Ok(val_reg);
}
let var_reg = ctx.lookup_or_global(name);
let is_const = ctx.lookup_const_flag(name);
let const_flag = if is_const { 1 } else { 0 };
ctx.inst(Inst::new(OpCode::STORE_VAR, Operand::Reg(var_reg as u32), Operand::Reg(val_reg as u32), Operand::Imm(const_flag)));
Ok(val_reg)
}
} else if matches!(
&assign.left,
oxide_parser::AssignmentTarget::ArrayAssignmentTarget(_)
| oxide_parser::AssignmentTarget::ObjectAssignmentTarget(_)
) {
if assign.operator != AssignmentOperator::Assign {
return Err("compound destructuring assignment not supported".into());
}
let val_reg = self.emit_expression(&assign.right, ctx)?;
self.emit_assign_target(&assign.left, val_reg, ctx)?;
Ok(val_reg)
} else {
Err("assignment target not supported".into())
}
}
}
crates/oxide_emit/src/expr/call.rs
+123
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@@ -0,0 +1,123 @@
use crate::{CompileCtx, Emitter};
use oxide_ir::inst::Inst;
use oxide_ir::operand::Operand;
use oxide_bytecode::module::Constant;
use oxide_bytecode::opcode::OpCode;
use oxide_parser::Expression;
impl Emitter {
fn emit_call_expression(&self, call: &oxide_parser::CallExpression, ctx: &mut CompileCtx) -> Result<u8, String> {
if matches!(&call.callee, Expression::Super(_)) {
if !ctx.in_derived_constructor {
return Err("super() only supported in derived constructors".into());
}
let mut arg_regs = Vec::new();
for arg in &call.arguments {
if let Some(expr) = arg.as_expression() {
arg_regs.push(self.emit_expression(expr, ctx)?);
}
}
let first_arg_reg = if arg_regs.is_empty() { 0u8 } else { arg_regs[0] };
let result_reg = ctx.alloc_reg();
ctx.inst(Inst::super_call(
Operand::Reg(result_reg as u32),
Operand::Reg(first_arg_reg as u32),
arg_regs.len() as u8,
));
if let Some(mut field_buffer) = ctx.field_buffer.take() {
let insert_inst = ctx.insts.len();
ctx.insts.append(&mut field_buffer.insts);
for (label, relative) in field_buffer.labels {
ctx.labels.set_label_pos(label, insert_inst + relative);
}
}
return Ok(result_reg);
}
let (callee_reg, this_reg) = match &call.callee {
Expression::PrivateFieldExpression(member) => {
let obj_reg = self.emit_expression(&member.object, ctx)?;
let key_reg = self.emit_private_id_reg(member.field.name.as_str(), ctx)?;
let callee_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::GET_PRIVATE, Operand::Reg(callee_reg as u32), Operand::Reg(obj_reg as u32), Operand::Reg(key_reg as u32)));
(callee_reg, obj_reg)
}
Expression::StaticMemberExpression(member) => {
let is_super_member = matches!(&member.object, Expression::Super(_));
let obj_reg = if is_super_member {
let this_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(this_reg as u32), Operand::This, Operand::None));
this_reg
} else {
self.emit_expression(&member.object, ctx)?
};
let prop_name = member.property.name.as_str();
let idx = ctx.add_constant(Constant::String(prop_name.to_string()));
let key_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(key_reg as u32), idx));
let callee_reg = ctx.alloc_reg();
if is_super_member {
if !ctx.in_instance_method && !ctx.in_static_method && !ctx.in_derived_constructor {
return Err("super property only supported in class methods".into());
}
let op = if ctx.in_static_method {
OpCode::SUPER_STATIC_GET_PROP
} else {
OpCode::SUPER_GET_PROP
};
ctx.inst(Inst::new(op, Operand::Reg(callee_reg as u32), Operand::Reg(obj_reg as u32), Operand::Reg(key_reg as u32)));
} else {
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(callee_reg as u32), Operand::Reg(obj_reg as u32), Operand::None));
ctx.inst(Inst::ic_get(Operand::Reg(callee_reg as u32), Operand::Reg(key_reg as u32)));
}
(callee_reg, obj_reg)
}
_ => {
let callee_reg = self.emit_expression(&call.callee, ctx)?;
let this_idx = ctx.add_constant(Constant::Undefined);
let this_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(this_reg as u32), this_idx));
(callee_reg, this_reg)
}
};
let mut arg_regs = Vec::new();
for arg in &call.arguments {
if let Some(expr) = arg.as_expression() {
arg_regs.push(self.emit_expression(expr, ctx)?);
}
}
let first_arg_reg = if arg_regs.is_empty() { 0u8 } else { arg_regs[0] };
let op = match &call.callee {
Expression::Identifier(ident) if ctx.is_builtin(ident.name.as_str()) => OpCode::CALL_NATIVE,
_ => OpCode::CALL,
};
match op {
OpCode::CALL => {
ctx.inst(Inst::call(
Operand::Reg(callee_reg as u32),
Operand::Reg(this_reg as u32),
Operand::Reg(first_arg_reg as u32),
arg_regs.len() as u8,
));
}
OpCode::CALL_NATIVE => {
ctx.inst(Inst::call_native(
Operand::Reg(callee_reg as u32),
Operand::Reg(this_reg as u32),
Operand::Reg(first_arg_reg as u32),
arg_regs.len() as u8,
));
}
_ => unreachable!(),
}
let result_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(result_reg as u32), Operand::None, Operand::None));
Ok(result_reg)
}
pub(crate) fn emit_call_domain(&self, expr: &Expression, ctx: &mut CompileCtx) -> Result<u8, String> {
match expr {
Expression::CallExpression(call) => self.emit_call_expression(call, ctx),
_ => self.emit_unsupported_expression(expr, ctx),
}
}
}
crates/oxide_emit/src/expr/function/mod.rs
+112
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@@ -0,0 +1,112 @@
use crate::{CompileCtx, Emitter, ParamSpec};
use oxide_ir::inst::Inst;
use oxide_ir::operand::Operand;
use oxide_parser::{Class, Expression, Statement};
impl Emitter {
fn emit_arrow_function_expression(
&self, arrow: &oxide_parser::ArrowFunctionExpression, ctx: &mut CompileCtx,
) -> Result<u8, String> {
// Rest params not yet supported
if let Some(_rest) = &arrow.params.rest {
return Err("rest params in arrow functions not yet supported".into());
}
// Extract param names (same pattern as FunctionExpression)
let mut param_names = Vec::new();
for (idx, param) in arrow.params.items.iter().enumerate() {
match &param.pattern {
oxide_parser::BindingPattern::BindingIdentifier(bi) => {
param_names.push(ParamSpec::Identifier(bi.name.to_string()));
}
pattern => {
param_names.push(ParamSpec::Pattern {
synthetic_name: format!("@@param_{idx}"),
pattern,
});
}
}
}
// Expression body: pass body statements directly with is_expression_body=true.
// Statement body: pass body statements with is_expression_body=false.
let body_stmts = &arrow.body.statements;
let is_expr_body = arrow.expression;
let mut sub_module = self.compile_function_body(&param_names, body_stmts, ctx, is_expr_body, true)?;
sub_module.is_arrow = true;
ctx.nested.push(sub_module);
// 1-indexed: 0 = no sub_module (sentinel)
let sub_idx = ctx.nested.len() as u16;
let r = ctx.alloc_reg();
ctx.inst(Inst::create_closure(Operand::Reg(r as u32), sub_idx));
Ok(r)
}
fn emit_function_expression(&self, fe: &oxide_parser::Function, ctx: &mut CompileCtx) -> Result<u8, String> {
// FunctionExpression: compile body, emit LOAD_CONST(BytecodeFunc)
let mut param_names = Vec::new();
for (idx, param) in fe.params.items.iter().enumerate() {
match &param.pattern {
oxide_parser::BindingPattern::BindingIdentifier(bi) => {
param_names.push(ParamSpec::Identifier(bi.name.to_string()));
}
pattern => {
param_names.push(ParamSpec::Pattern {
synthetic_name: format!("@@param_{idx}"),
pattern,
});
}
}
}
let body_stmts: &[Statement] = if let Some(body) = &fe.body { &body.statements } else { &[] };
let mut sub_module = self.compile_function_body(&param_names, body_stmts, ctx, false, false)?;
if let Some(id) = &fe.id {
sub_module.function_name = Some(id.name.to_string());
}
ctx.nested.push(sub_module);
// 1-indexed: 0 = no sub_module (sentinel)
let sub_idx = ctx.nested.len() as u16;
let r = ctx.alloc_reg();
ctx.inst(Inst::create_closure(Operand::Reg(r as u32), sub_idx));
Ok(r)
}
fn emit_class_expression(&self, class: &Class, ctx: &mut CompileCtx) -> Result<u8, String> {
self.emit_class(class, ctx)
}
fn emit_new_expression(&self, ne: &oxide_parser::NewExpression, ctx: &mut CompileCtx) -> Result<u8, String> {
let constructor_reg = self.emit_expression(&ne.callee, ctx)?;
let mut arg_regs = Vec::new();
for arg in &ne.arguments {
if let Some(expr) = arg.as_expression() {
arg_regs.push(self.emit_expression(expr, ctx)?);
}
}
let first_arg_reg = if arg_regs.is_empty() { 0u8 } else { arg_regs[0] };
let r = ctx.alloc_reg();
ctx.inst(Inst::new_expression(
Operand::Reg(r as u32),
Operand::Reg(constructor_reg as u32),
Operand::Reg(first_arg_reg as u32),
arg_regs.len() as u8,
));
Ok(r)
}
pub(crate) fn emit_function_domain(&self, expr: &Expression, ctx: &mut CompileCtx) -> Result<u8, String> {
match expr {
Expression::ArrowFunctionExpression(arrow) => self.emit_arrow_function_expression(arrow, ctx),
Expression::FunctionExpression(fe) => self.emit_function_expression(fe, ctx),
Expression::ClassExpression(class) => self.emit_class_expression(class, ctx),
Expression::NewExpression(ne) => self.emit_new_expression(ne, ctx),
_ => self.emit_unsupported_expression(expr, ctx),
}
}
}
crates/oxide_emit/src/expr/identifier.rs
+36
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@@ -0,0 +1,36 @@
use crate::{CompileCtx, Emitter};
use oxide_ir::inst::Inst;
use oxide_ir::operand::Operand;
use oxide_bytecode::opcode::OpCode;
impl Emitter {
pub(crate) fn emit_identifier_expression(
&self, ident: &oxide_parser::IdentifierReference, ctx: &mut CompileCtx,
) -> Result<u8, String> {
let name = ident.name.as_str();
for (uv_idx, up) in ctx.current_upvalue_captures.iter().enumerate() {
if up.name == name {
let r = ctx.alloc_reg();
let idx = uv_idx as u8;
ctx.inst(Inst::new(OpCode::LOAD_UPVALUE, Operand::Reg(r as u32), Operand::Reg(idx as u32), Operand::None));
return Ok(r);
}
}
if let Some(&cell_idx) = ctx.captured_bindings.get(name) {
let r = ctx.alloc_reg();
if let Some((binding, _)) = ctx.scopes.symbols.lookup_any_binding(name) {
ctx.inst(Inst::new(OpCode::CELL_GET, Operand::Reg(r as u32), Operand::Reg(binding.reg as u32), Operand::Imm(cell_idx as u16)));
} else {
ctx.inst(Inst::new(OpCode::CELL_GET, Operand::Reg(r as u32), Operand::None, Operand::Imm(cell_idx as u16)));
}
return Ok(r);
}
let var_reg = ctx.lookup_or_builtin(name)?;
let r = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(r as u32), Operand::Reg(var_reg as u32), Operand::None));
Ok(r)
}
}
crates/oxide_emit/src/expr/literal.rs
+83
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@@ -0,0 +1,83 @@
use crate::{is_int_literal, CompileCtx, Emitter};
use oxide_ir::inst::Inst;
use oxide_ir::operand::Operand;
use oxide_bytecode::module::Constant;
use oxide_bytecode::opcode::OpCode;
use oxide_parser::Expression;
impl Emitter {
pub(crate) fn emit_literal(&self, expr: &Expression, ctx: &mut CompileCtx) -> Result<u8, String> {
match expr {
Expression::NumericLiteral(n) => self.emit_numeric_literal_expression(n, ctx),
Expression::StringLiteral(s) => self.emit_string_literal_expression(s, ctx),
Expression::BooleanLiteral(b) => self.emit_boolean_literal_expression(b, ctx),
Expression::NullLiteral(_) => self.emit_null_literal_expression(ctx),
Expression::RegExpLiteral(lit) => self.emit_reg_exp_literal_expression(lit, ctx),
_ => self.emit_unsupported_expression(expr, ctx),
}
}
fn emit_numeric_literal_expression(
&self, n: &oxide_parser::NumericLiteral, ctx: &mut CompileCtx,
) -> Result<u8, String> {
let idx = if is_int_literal(n.value) {
ctx.add_constant(Constant::Int(n.value as i32))
} else {
ctx.add_constant(Constant::Number(n.value))
};
let r = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(r as u32), idx));
Ok(r)
}
fn emit_string_literal_expression(
&self, s: &oxide_parser::StringLiteral, ctx: &mut CompileCtx,
) -> Result<u8, String> {
let idx = ctx.add_constant(Constant::String(s.value.to_string()));
let r = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(r as u32), idx));
Ok(r)
}
fn emit_boolean_literal_expression(
&self, b: &oxide_parser::BooleanLiteral, ctx: &mut CompileCtx,
) -> Result<u8, String> {
let idx = ctx.add_constant(Constant::Boolean(b.value));
let r = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(r as u32), idx));
Ok(r)
}
fn emit_null_literal_expression(&self, ctx: &mut CompileCtx) -> Result<u8, String> {
let idx = ctx.add_constant(Constant::Null);
let r = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(r as u32), idx));
Ok(r)
}
fn emit_reg_exp_literal_expression(
&self, lit: &oxide_parser::RegExpLiteral, ctx: &mut CompileCtx,
) -> Result<u8, String> {
if let Some(raw) = &lit.raw {
let raw_str = raw.to_string();
if raw_str.len() >= 2 && raw_str.starts_with('/') {
let last_slash = raw_str.rfind('/').unwrap_or(raw_str.len() - 1);
let pattern = raw_str[1..last_slash].to_string();
let flags = raw_str[last_slash + 1..].to_string();
let pat_ci = ctx.add_constant(Constant::String(pattern));
let pat_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(pat_reg as u32), pat_ci));
let flags_ci = ctx.add_constant(Constant::String(flags));
let flags_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(flags_reg as u32), flags_ci));
let r = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::CREATE_REGEXP, Operand::Reg(r as u32), Operand::Reg(pat_reg as u32), Operand::Reg(flags_reg as u32)));
Ok(r)
} else {
Err(format!("unsupported regexp literal: {:?}", lit))
}
} else {
Err(format!("unsupported regexp literal: {:?}", lit))
}
}
}
crates/oxide_emit/src/expr/member/mod.rs
+83
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use crate::{CompileCtx, Emitter};
use oxide_ir::inst::Inst;
use oxide_ir::operand::Operand;
use oxide_bytecode::module::Constant;
use oxide_bytecode::opcode::OpCode;
use oxide_parser::Expression;
impl Emitter {
fn emit_static_member_expression(
&self, member: &oxide_parser::StaticMemberExpression, ctx: &mut CompileCtx,
) -> Result<u8, String> {
if matches!(&member.object, Expression::Super(_)) {
if !ctx.in_instance_method && !ctx.in_static_method && !ctx.in_derived_constructor {
return Err("super property only supported in class methods".into());
}
let prop_name = member.property.name.as_str();
let idx = ctx.add_constant(Constant::String(prop_name.to_string()));
let key_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(key_reg as u32), idx));
let this_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(this_reg as u32), Operand::This, Operand::None));
let result_reg = ctx.alloc_reg();
let op = if ctx.in_static_method {
OpCode::SUPER_STATIC_GET_PROP
} else {
OpCode::SUPER_GET_PROP
};
ctx.inst(Inst::new(op, Operand::Reg(result_reg as u32), Operand::Reg(this_reg as u32), Operand::Reg(key_reg as u32)));
return Ok(result_reg);
}
let obj_reg = self.emit_expression(&member.object, ctx)?;
let prop_name = member.property.name.as_str();
let idx = ctx.add_constant(Constant::String(prop_name.to_string()));
let key_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(key_reg as u32), idx));
ctx.inst(Inst::ic_get(Operand::Reg(obj_reg as u32), Operand::Reg(key_reg as u32)));
Ok(obj_reg)
}
fn emit_computed_member_expression(
&self, member: &oxide_parser::ComputedMemberExpression, ctx: &mut CompileCtx,
) -> Result<u8, String> {
let obj_reg = self.emit_expression(&member.object, ctx)?;
let key_reg = self.emit_expression(&member.expression, ctx)?;
let r = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::GET_PROP_DYNAMIC, Operand::Reg(obj_reg as u32), Operand::Reg(key_reg as u32), Operand::Reg(r as u32)));
Ok(r)
}
fn emit_private_field_expression(
&self, member: &oxide_parser::PrivateFieldExpression, ctx: &mut CompileCtx,
) -> Result<u8, String> {
let obj_reg = self.emit_expression(&member.object, ctx)?;
let key_reg = self.emit_private_id_reg(member.field.name.as_str(), ctx)?;
let r = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::GET_PRIVATE, Operand::Reg(r as u32), Operand::Reg(obj_reg as u32), Operand::Reg(key_reg as u32)));
Ok(r)
}
fn emit_chain_expression(&self, chain: &oxide_parser::ChainExpression, ctx: &mut CompileCtx) -> Result<u8, String> {
let short_label = ctx.next_label_id();
let end_label = ctx.next_label_id();
let value_reg = self.emit_chain_element(&chain.expression, Some(short_label), ctx)?;
let result_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(result_reg as u32), Operand::Reg(value_reg as u32), Operand::None));
ctx.inst(Inst::jmp(end_label));
ctx.labels.set_label_pos(short_label, ctx.insts.len());
let undefined_idx = ctx.add_constant(Constant::Undefined);
ctx.inst(Inst::load_const(Operand::Reg(result_reg as u32), undefined_idx));
ctx.labels.set_label_pos(end_label, ctx.insts.len());
Ok(result_reg)
}
pub(crate) fn emit_member_domain(&self, expr: &Expression, ctx: &mut CompileCtx) -> Result<u8, String> {
match expr {
Expression::StaticMemberExpression(member) => self.emit_static_member_expression(member, ctx),
Expression::ComputedMemberExpression(member) => self.emit_computed_member_expression(member, ctx),
Expression::PrivateFieldExpression(member) => self.emit_private_field_expression(member, ctx),
Expression::ChainExpression(chain) => self.emit_chain_expression(chain, ctx),
_ => self.emit_unsupported_expression(expr, ctx),
}
}
}
crates/oxide_emit/src/expr/mod.rs
+31
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@@ -0,0 +1,31 @@
use crate::{CompileCtx, Emitter};
use oxide_parser::Expression;
pub mod assignment;
pub mod call;
pub mod function;
pub mod identifier;
pub mod literal;
pub mod member;
pub mod object;
pub mod operator;
pub mod parenthesized;
pub mod template;
pub mod this;
impl Emitter {
pub(crate) fn emit_unsupported_expression(&self, expr: &Expression, ctx: &mut CompileCtx) -> Result<u8, String> {
let _ = ctx;
Err(format!("unsupported expression type: {:?}", expr))
}
pub(crate) fn emit_sequence_expression(
&self, seq: &oxide_parser::SequenceExpression, ctx: &mut CompileCtx,
) -> Result<u8, String> {
let mut last = 0u8;
for e in &seq.expressions {
last = self.emit_expression(e, ctx)?;
}
Ok(last)
}
}
crates/oxide_emit/src/expr/object/array.rs
+27
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@@ -0,0 +1,27 @@
use crate::{CompileCtx, Emitter};
use oxide_ir::inst::Inst;
use oxide_ir::operand::Operand;
use oxide_bytecode::module::Constant;
use oxide_bytecode::opcode::OpCode;
impl Emitter {
pub(crate) fn emit_array_expression(
&self, arr: &oxide_parser::ArrayExpression, ctx: &mut CompileCtx,
) -> Result<u8, String> {
let arr_reg = ctx.alloc_reg();
let n = arr.elements.len() as u16;
ctx.inst(Inst::new(OpCode::NEW_ARRAY, Operand::Reg(arr_reg as u32), Operand::Imm(n), Operand::None));
let elem_checkpoint = ctx.reg_checkpoint();
for (i, elem) in arr.elements.iter().enumerate() {
let Some(e) = elem.as_expression() else {
return Err("spread not supported".into());
};
let val_reg = self.emit_expression(e, ctx)?;
let idx_reg = ctx.alloc_reg();
let idx = ctx.add_constant(Constant::Int(i as i32));
ctx.inst(Inst::load_const(Operand::Reg(idx_reg as u32), idx));
ctx.inst(Inst::new(OpCode::SET_ELEM, Operand::Reg(arr_reg as u32), Operand::Reg(idx_reg as u32), Operand::Reg(val_reg as u32)));
ctx.restore_reg_checkpoint(elem_checkpoint);
}
Ok(arr_reg)
}
}
crates/oxide_emit/src/expr/object/mod.rs
+15
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@@ -0,0 +1,15 @@
use crate::{CompileCtx, Emitter};
use oxide_parser::Expression;
mod array;
mod object_literal;
impl Emitter {
pub(crate) fn emit_object_domain(&self, expr: &Expression, ctx: &mut CompileCtx) -> Result<u8, String> {
match expr {
Expression::ObjectExpression(obj) => self.emit_object_expression(obj, ctx),
Expression::ArrayExpression(arr) => self.emit_array_expression(arr, ctx),
_ => self.emit_unsupported_expression(expr, ctx),
}
}
}
crates/oxide_emit/src/expr/object/object_literal.rs
+62
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@@ -0,0 +1,62 @@
use crate::{CompileCtx, Emitter};
use oxide_ir::inst::Inst;
use oxide_ir::operand::Operand;
use oxide_bytecode::module::Constant;
use oxide_bytecode::opcode::OpCode;
use oxide_parser::{Expression, ObjectPropertyKind, PropertyKey, PropertyKind};
impl Emitter {
pub(crate) fn emit_object_expression(
&self, obj: &oxide_parser::ObjectExpression, ctx: &mut CompileCtx,
) -> Result<u8, String> {
let obj_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::NEW_OBJECT, Operand::Reg(obj_reg as u32), Operand::None, Operand::None));
let prop_checkpoint = ctx.reg_checkpoint();
for prop in &obj.properties {
let ObjectPropertyKind::ObjectProperty(p) = prop else {
return Err("spread properties not yet supported".into());
};
let prop_name = match &p.key {
PropertyKey::StaticIdentifier(ident) => ident.name.as_str().to_string(),
PropertyKey::StringLiteral(s) => s.value.to_string(),
_ => return Err("unsupported object property key type".into()),
};
match p.kind {
PropertyKind::Get | PropertyKind::Set => {
let accessor_reg = self.emit_expression(&p.value, ctx)?;
if let Some(sub_mod) = ctx.nested.last_mut() {
sub_mod.function_name = Some(prop_name.to_string());
}
let undef_reg = self.emit_undefined(ctx);
let (get_reg, set_reg) = if p.kind == PropertyKind::Get {
(accessor_reg, undef_reg)
} else {
(undef_reg, accessor_reg)
};
let idx = ctx.add_constant(Constant::String(prop_name.to_string()));
ctx.inst(Inst::define_accessor(
Operand::Reg(obj_reg as u32),
Operand::Reg(get_reg as u32),
Operand::Reg(set_reg as u32),
idx as u32,
));
ctx.restore_reg_checkpoint(prop_checkpoint);
}
_ => {
let idx = ctx.add_constant(Constant::String(prop_name.to_string()));
let key_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(key_reg as u32), idx));
let val_reg = self.emit_expression(&p.value, ctx)?;
if matches!(&p.value, Expression::ArrowFunctionExpression(_)) {
if let Some(sub_mod) = ctx.nested.last_mut() {
sub_mod.function_name = Some(prop_name.to_string());
}
}
ctx.inst(Inst::new(OpCode::SET_PROP, Operand::Reg(obj_reg as u32), Operand::Reg(val_reg as u32), Operand::Reg(key_reg as u32)));
ctx.restore_reg_checkpoint(prop_checkpoint);
}
}
}
Ok(obj_reg)
}
}
crates/oxide_emit/src/expr/operator/mod.rs
+321
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use crate::{is_side_effect_free, BinaryOperator, CompileCtx, Emitter};
use oxide_ir::inst::Inst;
use oxide_ir::operand::Operand;
use oxide_bytecode::module::Constant;
use oxide_bytecode::opcode::OpCode;
use oxide_parser::{ChainElement, Expression, LogicalOperator, SimpleAssignmentTarget, UnaryOperator, UpdateOperator};
impl Emitter {
fn emit_private_in_expression(
&self, pin: &oxide_parser::PrivateInExpression, ctx: &mut CompileCtx,
) -> Result<u8, String> {
let obj_reg = self.emit_expression(&pin.right, ctx)?;
let key_reg = self.emit_private_id_reg(pin.left.name.as_str(), ctx)?;
let result_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::PRIVATE_BRAND_IN, Operand::Reg(result_reg as u32), Operand::Reg(obj_reg as u32), Operand::Reg(key_reg as u32)));
Ok(result_reg)
}
fn emit_binary_expression(&self, bin: &oxide_parser::BinaryExpression, ctx: &mut CompileCtx) -> Result<u8, String> {
let checkpoint = ctx.reg_checkpoint();
let left = self.emit_expression(&bin.left, ctx)?;
let right = self.emit_expression(&bin.right, ctx)?;
let op = match bin.operator {
BinaryOperator::Addition => OpCode::ADD,
BinaryOperator::Subtraction => OpCode::SUB,
BinaryOperator::Multiplication => OpCode::MUL,
BinaryOperator::Division => OpCode::DIV,
BinaryOperator::Remainder => OpCode::MOD,
BinaryOperator::BitwiseAnd => OpCode::BIT_AND,
BinaryOperator::BitwiseOR => OpCode::BIT_OR,
BinaryOperator::BitwiseXOR => OpCode::BIT_XOR,
BinaryOperator::ShiftLeft => OpCode::SHL,
BinaryOperator::ShiftRight => OpCode::SHR,
BinaryOperator::ShiftRightZeroFill => OpCode::USHR,
BinaryOperator::Equality => OpCode::EQ,
BinaryOperator::Inequality => OpCode::NEQ,
BinaryOperator::LessThan => OpCode::LT,
BinaryOperator::GreaterThan => OpCode::GT,
BinaryOperator::LessEqualThan => OpCode::LTE,
BinaryOperator::GreaterEqualThan => OpCode::GTE,
BinaryOperator::In => OpCode::IN,
BinaryOperator::Instanceof => OpCode::INSTANCEOF,
BinaryOperator::StrictEquality => OpCode::STRICT_EQ,
BinaryOperator::StrictInequality => OpCode::STRICT_NEQ,
_ => return Err(format!("unsupported binary operator: {:?}", bin.operator)),
};
ctx.inst(Inst::new(op, Operand::Reg(left as u32), Operand::Reg(left as u32), Operand::Reg(right as u32)));
if is_side_effect_free(&bin.left) && is_side_effect_free(&bin.right) {
ctx.restore_reg_checkpoint(checkpoint.saturating_add(1).max(left.saturating_add(1)));
}
Ok(left)
}
fn emit_unary_expression(&self, un: &oxide_parser::UnaryExpression, ctx: &mut CompileCtx) -> Result<u8, String> {
if matches!(un.operator, UnaryOperator::Delete) {
return match &un.argument {
Expression::Identifier(_) => {
Err("SyntaxError: delete of an unqualified identifier in strict mode".into())
}
Expression::StaticMemberExpression(member) => {
let obj_reg = self.emit_expression(&member.object, ctx)?;
let prop_name = member.property.name.as_str();
let const_idx = ctx.add_constant(Constant::String(prop_name.to_string()));
ctx.inst(Inst::delete_prop_static(Operand::Reg(obj_reg as u32), const_idx as u32));
Ok(obj_reg)
}
Expression::ComputedMemberExpression(member) => {
let obj_reg = self.emit_expression(&member.object, ctx)?;
let key_reg = self.emit_expression(&member.expression, ctx)?;
ctx.inst(Inst::new(OpCode::DELETE_PROP_DYNAMIC, Operand::Reg(obj_reg as u32), Operand::Reg(obj_reg as u32), Operand::Reg(key_reg as u32)));
Ok(obj_reg)
}
Expression::ChainExpression(chain) => {
let short_label = ctx.next_label_id();
let result_reg = match &chain.expression {
ChainElement::StaticMemberExpression(member) => {
let obj_reg = self.emit_expression(&member.object, ctx)?;
if member.optional {
let dup_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(dup_reg as u32), Operand::Reg(obj_reg as u32), Operand::None));
ctx.inst(Inst::jmp_if_nullish(dup_reg, short_label));
}
let prop_name = member.property.name.as_str();
let const_idx = ctx.add_constant(Constant::String(prop_name.to_string()));
ctx.inst(Inst::delete_prop_static(Operand::Reg(obj_reg as u32), const_idx as u32));
obj_reg
}
ChainElement::ComputedMemberExpression(member) => {
let obj_reg = self.emit_expression(&member.object, ctx)?;
if member.optional {
let dup_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(dup_reg as u32), Operand::Reg(obj_reg as u32), Operand::None));
ctx.inst(Inst::jmp_if_nullish(dup_reg, short_label));
}
let key_reg = self.emit_expression(&member.expression, ctx)?;
ctx.inst(Inst::new(OpCode::DELETE_PROP_DYNAMIC, Operand::Reg(obj_reg as u32), Operand::Reg(obj_reg as u32), Operand::Reg(key_reg as u32)));
obj_reg
}
_ => return Err("invalid delete target".into()),
};
let end_label = ctx.next_label_id();
ctx.inst(Inst::jmp(end_label));
ctx.labels.set_label_pos(short_label, ctx.insts.len());
let true_idx = ctx.add_constant(Constant::Boolean(true));
ctx.inst(Inst::load_const(Operand::Reg(result_reg as u32), true_idx));
ctx.labels.set_label_pos(end_label, ctx.insts.len());
Ok(result_reg)
}
_ => Err("invalid delete target".into()),
};
}
let arg = self.emit_expression(&un.argument, ctx)?;
match un.operator {
UnaryOperator::UnaryNegation => {
ctx.inst(Inst::new(OpCode::NEG, Operand::Reg(arg as u32), Operand::Reg(arg as u32), Operand::None));
Ok(arg)
}
UnaryOperator::Typeof => {
ctx.inst(Inst::new(OpCode::TYPEOF, Operand::Reg(arg as u32), Operand::Reg(arg as u32), Operand::None));
Ok(arg)
}
UnaryOperator::Void => {
ctx.inst(Inst::new(OpCode::VOID, Operand::Reg(arg as u32), Operand::Reg(arg as u32), Operand::None));
Ok(arg)
}
UnaryOperator::LogicalNot => {
ctx.inst(Inst::new(OpCode::NOT, Operand::Reg(arg as u32), Operand::Reg(arg as u32), Operand::None));
Ok(arg)
}
UnaryOperator::BitwiseNot => {
ctx.inst(Inst::new(OpCode::BIT_NOT, Operand::Reg(arg as u32), Operand::Reg(arg as u32), Operand::None));
Ok(arg)
}
UnaryOperator::UnaryPlus => {
ctx.inst(Inst::new(OpCode::UNARY_PLUS, Operand::Reg(arg as u32), Operand::Reg(arg as u32), Operand::None));
Ok(arg)
}
UnaryOperator::Delete => Err("invalid delete target".into()),
}
}
fn emit_conditional_expression(
&self, cond: &oxide_parser::ConditionalExpression, ctx: &mut CompileCtx,
) -> Result<u8, String> {
let else_label = ctx.next_label_id();
let end_label = ctx.next_label_id();
let test_reg = self.emit_expression(&cond.test, ctx)?;
ctx.inst(Inst::jmp_if_false(test_reg, else_label));
let cons_reg = self.emit_expression(&cond.consequent, ctx)?;
let result_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(result_reg as u32), Operand::Reg(cons_reg as u32), Operand::None));
ctx.inst(Inst::jmp(end_label));
ctx.labels.set_label_pos(else_label, ctx.insts.len());
let alt_reg = self.emit_expression(&cond.alternate, ctx)?;
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(result_reg as u32), Operand::Reg(alt_reg as u32), Operand::None));
ctx.labels.set_label_pos(end_label, ctx.insts.len());
Ok(result_reg)
}
fn emit_logical_expression(
&self, log: &oxide_parser::LogicalExpression, ctx: &mut CompileCtx,
) -> Result<u8, String> {
let left_reg = self.emit_expression(&log.left, ctx)?;
if is_side_effect_free(&log.left) && is_side_effect_free(&log.right) {
let right_reg = self.emit_expression(&log.right, ctx)?;
let r = ctx.alloc_reg();
let op = match log.operator {
LogicalOperator::And => OpCode::AND,
LogicalOperator::Or => OpCode::OR,
LogicalOperator::Coalesce => OpCode::NULLISH,
};
ctx.inst(Inst::new(op, Operand::Reg(r as u32), Operand::Reg(left_reg as u32), Operand::Reg(right_reg as u32)));
return Ok(r);
}
if matches!(log.operator, LogicalOperator::Coalesce) {
let rhs_label = ctx.next_label_id();
let end_label = ctx.next_label_id();
let dup_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(dup_reg as u32), Operand::Reg(left_reg as u32), Operand::None));
ctx.inst(Inst::jmp_if_nullish(dup_reg, rhs_label));
ctx.inst(Inst::jmp(end_label));
ctx.labels.set_label_pos(rhs_label, ctx.insts.len());
let right_reg = self.emit_expression(&log.right, ctx)?;
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(dup_reg as u32), Operand::Reg(right_reg as u32), Operand::None));
ctx.labels.set_label_pos(end_label, ctx.insts.len());
return Ok(dup_reg);
}
let skip_label = match log.operator {
LogicalOperator::And => ctx.next_label_id(),
LogicalOperator::Or => ctx.next_label_id(),
LogicalOperator::Coalesce => return Err("invalid logical operator dispatch".into()),
};
let dup_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(dup_reg as u32), Operand::Reg(left_reg as u32), Operand::None));
match log.operator {
LogicalOperator::And => ctx.inst(Inst::jmp_if_false(dup_reg, skip_label)),
LogicalOperator::Or => ctx.inst(Inst::jmp_if_true(dup_reg, skip_label)),
LogicalOperator::Coalesce => return Err("invalid logical operator dispatch".into()),
}
let right_reg = self.emit_expression(&log.right, ctx)?;
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(dup_reg as u32), Operand::Reg(right_reg as u32), Operand::None));
ctx.labels.set_label_pos(skip_label, ctx.insts.len());
Ok(dup_reg)
}
fn emit_update_expression(
&self, update: &oxide_parser::UpdateExpression, ctx: &mut CompileCtx,
) -> Result<u8, String> {
match &update.argument {
SimpleAssignmentTarget::AssignmentTargetIdentifier(id) => {
let name = id.name.as_str();
// Check if this is an upvalue or captured cell reference
let uv_idx = ctx.current_upvalue_captures.iter().position(|u| u.name == name);
let captured_cell = ctx.captured_bindings.get(name).copied();
if let Some(uv) = uv_idx {
// Upvalue: LOAD_UPVALUE + CONST(1) + ADD/SUB + STORE_UPVALUE
let val_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::LOAD_UPVALUE, Operand::Reg(val_reg as u32), Operand::Imm(uv as u16), Operand::None));
let one_idx = ctx.add_constant(Constant::Int(1));
let one_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(one_reg as u32), one_idx));
let op = if update.operator == UpdateOperator::Increment {
OpCode::ADD
} else {
OpCode::SUB
};
ctx.inst(Inst::new(op, Operand::Reg(val_reg as u32), Operand::Reg(val_reg as u32), Operand::Reg(one_reg as u32)));
ctx.inst(Inst::new(OpCode::STORE_UPVALUE, Operand::None, Operand::Reg(val_reg as u32), Operand::Imm(uv as u16)));
Ok(val_reg)
} else if let Some(cell_idx) = captured_cell {
// Captured cell: CELL_GET + CONST(1) + ADD/SUB + CELL_SET
let val_reg = ctx.alloc_reg();
if let Some((binding, _)) = ctx.scopes.symbols.lookup_any_binding(name) {
ctx.inst(Inst::new(OpCode::CELL_GET, Operand::Reg(val_reg as u32), Operand::Reg(binding.reg as u32), Operand::Imm(cell_idx as u16)));
} else {
ctx.inst(Inst::new(OpCode::CELL_GET, Operand::Reg(val_reg as u32), Operand::None, Operand::Imm(cell_idx as u16)));
}
let one_idx = ctx.add_constant(Constant::Int(1));
let one_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(one_reg as u32), one_idx));
let op = if update.operator == UpdateOperator::Increment {
OpCode::ADD
} else {
OpCode::SUB
};
ctx.inst(Inst::new(op, Operand::Reg(val_reg as u32), Operand::Reg(val_reg as u32), Operand::Reg(one_reg as u32)));
ctx.inst(Inst::new(OpCode::CELL_SET, Operand::None, Operand::Reg(val_reg as u32), Operand::Imm(cell_idx as u16)));
Ok(val_reg)
} else {
let var_reg = ctx.lookup_or_global(name);
let result_reg = ctx.alloc_reg();
let op = match (update.operator, update.prefix) {
(UpdateOperator::Increment, true) => OpCode::INC_PRE,
(UpdateOperator::Increment, false) => OpCode::INC_POST,
(UpdateOperator::Decrement, true) => OpCode::DEC_PRE,
(UpdateOperator::Decrement, false) => OpCode::DEC_POST,
};
ctx.inst(Inst::new(op, Operand::Reg(var_reg as u32), Operand::Reg(result_reg as u32), Operand::Reg(result_reg as u32)));
Ok(result_reg)
}
}
SimpleAssignmentTarget::StaticMemberExpression(member) => {
let obj_reg = self.emit_expression(&member.object, ctx)?;
let prop_name = member.property.name.as_str();
let key_idx = ctx.add_constant(Constant::String(prop_name.to_string()));
let key_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(key_reg as u32), key_idx));
let val_reg = ctx.alloc_reg();
let op = match update.operator {
UpdateOperator::Increment => OpCode::MEMBER_INC,
UpdateOperator::Decrement => OpCode::MEMBER_DEC,
};
match op {
OpCode::MEMBER_INC => {
ctx.inst(Inst::member_inc(Operand::Reg(obj_reg as u32), Operand::Reg(val_reg as u32), Operand::Reg(key_reg as u32)));
}
OpCode::MEMBER_DEC => {
ctx.inst(Inst::member_dec(Operand::Reg(obj_reg as u32), Operand::Reg(val_reg as u32), Operand::Reg(key_reg as u32)));
}
_ => unreachable!(),
}
Ok(val_reg)
}
SimpleAssignmentTarget::ComputedMemberExpression(member) => {
let obj_reg = self.emit_expression(&member.object, ctx)?;
let key_reg = self.emit_expression(&member.expression, ctx)?;
let val_reg = ctx.alloc_reg();
let op = match update.operator {
UpdateOperator::Increment => OpCode::DYN_MEMBER_INC,
UpdateOperator::Decrement => OpCode::DYN_MEMBER_DEC,
};
ctx.inst(Inst::new(op, Operand::Reg(obj_reg as u32), Operand::Reg(key_reg as u32), Operand::Reg(val_reg as u32)));
Ok(val_reg)
}
_ => Err("member update not yet supported".into()),
}
}
pub(crate) fn emit_operator(&self, expr: &Expression, ctx: &mut CompileCtx) -> Result<u8, String> {
match expr {
Expression::BinaryExpression(bin) => self.emit_binary_expression(bin, ctx),
Expression::PrivateInExpression(pin) => self.emit_private_in_expression(pin, ctx),
Expression::UnaryExpression(un) => self.emit_unary_expression(un, ctx),
Expression::ConditionalExpression(cond) => self.emit_conditional_expression(cond, ctx),
Expression::LogicalExpression(log) => self.emit_logical_expression(log, ctx),
Expression::UpdateExpression(update) => self.emit_update_expression(update, ctx),
_ => self.emit_unsupported_expression(expr, ctx),
}
}
}
crates/oxide_emit/src/expr/parenthesized.rs
+9
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@@ -0,0 +1,9 @@
use crate::{CompileCtx, Emitter};
impl Emitter {
pub(crate) fn emit_parenthesized_expression(
&self, p: &oxide_parser::ParenthesizedExpression, ctx: &mut CompileCtx,
) -> Result<u8, String> {
self.emit_expression(&p.expression, ctx)
}
}
crates/oxide_emit/src/expr/template/mod.rs
+15
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@@ -0,0 +1,15 @@
use crate::{CompileCtx, Emitter};
use oxide_parser::Expression;
mod tagged;
mod template_literal;
impl Emitter {
pub(crate) fn emit_template_domain(&self, expr: &Expression, ctx: &mut CompileCtx) -> Result<u8, String> {
match expr {
Expression::TemplateLiteral(tl) => self.emit_template_literal_expression(tl, ctx),
Expression::TaggedTemplateExpression(tt) => self.emit_tagged_template_expression(tt, ctx),
_ => self.emit_unsupported_expression(expr, ctx),
}
}
}
crates/oxide_emit/src/expr/template/tagged.rs
+75
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@@ -0,0 +1,75 @@
use crate::{CompileCtx, Emitter};
use oxide_ir::inst::Inst;
use oxide_ir::operand::Operand;
use oxide_bytecode::module::Constant;
use oxide_bytecode::opcode::OpCode;
impl Emitter {
pub(crate) fn emit_tagged_template_expression(
&self, tt: &oxide_parser::TaggedTemplateExpression, ctx: &mut CompileCtx,
) -> Result<u8, String> {
let quasis = &tt.quasi.quasis;
let expressions = &tt.quasi.expressions;
let tag_reg = self.emit_expression(&tt.tag, ctx)?;
let cooked_temp = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::NEW_ARRAY, Operand::Reg(cooked_temp as u32), Operand::Imm(quasis.len() as u16), Operand::None));
for (i, quasi) in quasis.iter().enumerate() {
let s = quasi.value.cooked.as_ref().map(|c| c.to_string()).unwrap_or_default();
let const_idx = ctx.add_constant(Constant::String(s));
let str_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(str_reg as u32), const_idx));
let idx_const = ctx.add_constant(Constant::Int(i as i32));
let idx_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(idx_reg as u32), idx_const));
ctx.inst(Inst::new(OpCode::SET_ELEM, Operand::Reg(cooked_temp as u32), Operand::Reg(idx_reg as u32), Operand::Reg(str_reg as u32)));
}
let raw_temp = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::NEW_ARRAY, Operand::Reg(raw_temp as u32), Operand::Imm(quasis.len() as u16), Operand::None));
for (i, quasi) in quasis.iter().enumerate() {
let raw = quasi.value.raw.to_string();
let const_idx = ctx.add_constant(Constant::String(raw));
let str_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(str_reg as u32), const_idx));
let idx_const = ctx.add_constant(Constant::Int(i as i32));
let idx_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(idx_reg as u32), idx_const));
ctx.inst(Inst::new(OpCode::SET_ELEM, Operand::Reg(raw_temp as u32), Operand::Reg(idx_reg as u32), Operand::Reg(str_reg as u32)));
}
let mut expr_temps = Vec::new();
for expr in expressions {
expr_temps.push(self.emit_expression(expr, ctx)?);
}
let cooked_slot = ctx.alloc_reg();
let raw_slot = ctx.alloc_reg();
let mut expr_slots = Vec::new();
for _ in expressions {
expr_slots.push(ctx.alloc_reg());
}
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(cooked_slot as u32), Operand::Reg(cooked_temp as u32), Operand::None));
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(raw_slot as u32), Operand::Reg(raw_temp as u32), Operand::None));
for (slot, temp) in expr_slots.iter().zip(expr_temps.iter()) {
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(*slot as u32), Operand::Reg(*temp as u32), Operand::None));
}
let undef_idx = ctx.add_constant(Constant::Undefined);
let undef_reg = ctx.alloc_reg();
ctx.inst(Inst::load_const(Operand::Reg(undef_reg as u32), undef_idx));
let arg_count = 2 + expressions.len();
ctx.inst(Inst::call(
Operand::Reg(tag_reg as u32),
Operand::Reg(undef_reg as u32),
Operand::Reg(cooked_slot as u32),
arg_count as u8,
));
let result_reg = ctx.alloc_reg();
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(result_reg as u32), Operand::None, Operand::None));
Ok(result_reg)
}
}
crates/oxide_emit/src/expr/template/template_literal.rs
+51
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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)
}
}
crates/oxide_emit/src/expr/this.rs
+14
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@@ -0,0 +1,14 @@
use crate::{CompileCtx, Emitter};
use oxide_ir::inst::Inst;
use oxide_ir::operand::Operand;
use oxide_bytecode::opcode::OpCode;
impl Emitter {
pub(crate) fn emit_this_expression(&self, ctx: &mut CompileCtx) -> Result<u8, String> {
let r = ctx.alloc_reg();
let src = ctx.static_block_this_reg.unwrap_or(254);
let src_op = if src == 254 { Operand::This } else { Operand::Reg(src as u32) };
ctx.inst(Inst::new(OpCode::LOAD_VAR, Operand::Reg(r as u32), src_op, Operand::None));
Ok(r)
}
}