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Commit e7ec3053 authored by qinsoon's avatar qinsoon
Browse files

more refactoring

parent 212638e9
Hide whitespace changes
Inline Side-by-side
src/ast/ir.rs
View file @ e7ec3053
......@@ -2,6 +2,8 @@ use ast::ptr::P;
use ast::op::{BinOp, CmpOp, AtomicRMWOp};
use ast::types::*;
use std::fmt;
pub type WPID = usize;
pub type MuID = usize;
pub type MuTag = &'static str;
......@@ -34,63 +36,82 @@ pub struct BlockContent {
pub keepalives: Option<Vec<P<TreeNode>>>
}
#[derive(Clone, Debug)]
#[derive(Clone)]
/// always use with P<TreeNode>
pub struct TreeNode {
pub v: TreeNodeKind,
pub id: MuID,
pub tag: MuTag,
pub v: TreeNode_,
pub children: Vec<P<TreeNode>>,
}
impl TreeNode {
pub fn new_value(v: P<Value>) -> P<TreeNode> {
P(TreeNode{v: TreeNodeKind::Value(v), children: vec![]})
pub fn new_ssa(id: MuID, tag: MuTag, ty: P<MuType>) -> P<TreeNode> {
P(TreeNode{
id: id,
tag: tag,
v: TreeNode_::Value(P(Value{ty: ty, v: Value_::SSAVar})),
children: vec![]})
}
pub fn new_constant(id: MuID, tag: MuTag, ty: P<MuType>, v: Constant) -> P<TreeNode> {
P(TreeNode{
id: id,
tag: tag,
v: TreeNode_::Value(P(Value{ty: ty, v: Value_::Constant(v)})),
children: vec![]
})
}
pub fn new_inst(v: Instruction) -> P<TreeNode> {
P(TreeNode{v: TreeNodeKind::Instruction(v), children: vec![]})
pub fn new_value(id: MuID, tag: MuTag, v: P<Value>) -> P<TreeNode> {
P(TreeNode{
id: id,
tag: tag,
v: TreeNode_::Value(v),
children: vec![]
}
)
}
pub fn new_inst(id: MuID, tag: MuTag, v: Instruction) -> P<TreeNode> {
P(TreeNode{id: id, tag: tag, v: TreeNode_::Instruction(v), children: vec![]})
}
}
impl fmt::Debug for TreeNode {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{:?}#{:?}: {:?}", self.tag, self.id, self.v).unwrap();
for child in self.children.iter() {
write!(f, " -> {:?}#{:?}\n", child.tag, child.id).unwrap();
}
write!(f, "")
}
}
#[derive(Clone, Debug)]
pub enum TreeNodeKind {
pub enum TreeNode_ {
Value(P<Value>),
Instruction(Instruction),
}
/// always use with P<Value>
#[derive(Clone, Debug)]
pub enum Value {
SSAVar(SSAVar),
Constant(MuConstant)
}
impl Value {
pub fn new_ssa(v: SSAVar) -> P<Value> {
P(Value::SSAVar(v))
}
pub fn new_constnat(v: MuConstant) -> P<Value> {
P(Value::Constant(v))
}
}
#[derive(Clone, Debug)]
pub struct SSAVar {
pub id: MuID,
pub tag: MuTag,
pub ty: P<MuType_>
pub struct Value {
pub ty: P<MuType>,
pub v: Value_
}
#[derive(Clone, Debug)]
pub struct MuConstant{
pub ty: P<MuType_>,
pub val: Constant
pub enum Value_ {
SSAVar,
Constant(Constant)
}
#[derive(Clone, Debug)]
pub enum Constant {
Int(usize, usize),
IRef(P<MuType_>, Address),
IRef(P<MuType>, Address),
FloatV(f32),
DoubleV(f64),
VectorV(Vec<Constant>),
......@@ -210,20 +231,20 @@ pub enum Expression_ {
},
// yields a reference of the type
New(P<MuType_>),
New(P<MuType>),
// yields an iref of the type
AllocA(P<MuType_>),
AllocA(P<MuType>),
// yields ref
NewHybrid{ // hybrid type, var part length
ty: P<MuType_>,
ty: P<MuType>,
var_len: P<TreeNode>
},
// yields iref
AllocAHybrid{
ty: P<MuType_>,
ty: P<MuType>,
var_len: P<TreeNode>
},
......
src/ast/types.rs
View file @ e7ec3053
......@@ -5,8 +5,10 @@ use ast::ir::*;
use std::collections::HashMap;
use std::sync::RwLock;
pub type MuType = MuType_;
#[derive(Clone, PartialEq, Eq, Debug)]
pub enum MuType_ {
enum MuType_ {
/// int <length>
Int (usize),
/// float
......@@ -15,23 +17,23 @@ pub enum MuType_ {
Double,
/// ref<T>
Ref (P<MuType_>), // Box is needed for non-recursive enum
Ref (P<MuType>), // Box is needed for non-recursive enum
/// iref<T>: internal reference
IRef (P<MuType_>),
IRef (P<MuType>),
/// weakref<T>
WeakRef (P<MuType_>),
WeakRef (P<MuType>),
/// uptr<T>: unsafe pointer
UPtr (P<MuType_>),
UPtr (P<MuType>),
/// struct<T1 T2 ...>
Struct (MuTag),
/// array<T length>
Array (P<MuType_>, usize),
Array (P<MuType>, usize),
/// hybrid<F1 F2 ... V>: a hybrid of fixed length parts and a variable length part
Hybrid (Vec<P<MuType_>>, P<MuType_>),
Hybrid (Vec<P<MuType>>, P<MuType>),
/// void
Void,
......@@ -45,7 +47,7 @@ pub enum MuType_ {
Tagref64,
/// vector<T length>
Vector (P<MuType_>, usize),
Vector (P<MuType>, usize),
/// funcref<@sig>
FuncRef (P<MuFuncSig>),
......@@ -65,7 +67,7 @@ pub struct StructType_ {
}
impl StructType_ {
pub fn set_tys(&mut self, mut list: Vec<P<MuType_>>) {
pub fn set_tys(&mut self, mut list: Vec<P<MuType>>) {
self.tys.clear();
self.tys.append(&mut list);
}
......@@ -152,7 +154,7 @@ impl MuType_ {
}
/// is a type floating-point type?
pub fn is_fp(ty: &MuType_) -> bool {
pub fn is_fp(ty: &MuType) -> bool {
match *ty {
MuType_::Float | MuType_::Double => true,
_ => false
......@@ -160,7 +162,7 @@ pub fn is_fp(ty: &MuType_) -> bool {
}
/// is a type raw pointer?
pub fn is_ptr(ty: &MuType_) -> bool {
pub fn is_ptr(ty: &MuType) -> bool {
match *ty {
MuType_::UPtr(_) | MuType_::UFuncPtr(_) => true,
_ => false
......@@ -168,7 +170,7 @@ pub fn is_ptr(ty: &MuType_) -> bool {
}
/// is a type scalar type?
pub fn is_scalar(ty: &MuType_) -> bool {
pub fn is_scalar(ty: &MuType) -> bool {
match *ty {
MuType_::Int(_)
| MuType_::Float
......@@ -188,7 +190,7 @@ pub fn is_scalar(ty: &MuType_) -> bool {
/// is a type traced by the garbage collector?
/// Note: An aggregated type is traced if any of its part is traced.
pub fn is_traced(ty: &MuType_) -> bool {
pub fn is_traced(ty: &MuType) -> bool {
match *ty {
MuType_::Ref(_) => true,
MuType_::IRef(_) => true,
......@@ -217,7 +219,7 @@ pub fn is_traced(ty: &MuType_) -> bool {
/// is a type native safe?
/// Note: An aggregated type is native safe if all of its parts are native safe.
pub fn is_native_safe(ty: &MuType_) -> bool {
pub fn is_native_safe(ty: &MuType) -> bool {
match *ty {
MuType_::Int(_) => true,
MuType_::Float => true,
......@@ -255,6 +257,6 @@ macro_rules! is_type (
#[derive(Clone, PartialEq, Eq, Debug)]
pub struct MuFuncSig {
pub ret_tys : Vec<P<MuType_>>,
pub arg_tys: Vec<P<MuType_>>
pub ret_tys : Vec<P<MuType>>,
pub arg_tys: Vec<P<MuType>>
}
\ No newline at end of file
src/compiler/passes/tree_gen.rs
View file @ e7ec3053
......@@ -22,8 +22,10 @@ impl CompilerPass for TreeGenerationPass {
debug!(" block: {:?}", label);
for inst in block.content.take().unwrap().body {
debug!(" {:?}", inst);
}
debug!(" ");
}
}
}
\ No newline at end of file
src/vm/context.rs
View file @ e7ec3053
......@@ -8,7 +8,7 @@ use std::cell::RefCell;
pub struct VMContext {
constants: HashMap<MuTag, P<Value>>,
types: HashMap<MuTag, P<MuType_>>,
types: HashMap<MuTag, P<MuType>>,
func_sigs: HashMap<MuTag, P<MuFuncSig>>,
funcs: HashMap<MuTag, RefCell<MuFunction>>
}
......@@ -23,16 +23,16 @@ impl VMContext {
}
}
pub fn declare_const(&mut self, const_name: MuTag, ty: P<MuType_>, val: Constant) -> P<Value> {
pub fn declare_const(&mut self, const_name: MuTag, ty: P<MuType>, val: Constant) -> P<Value> {
debug_assert!(!self.constants.contains_key(const_name));
let ret = P(Value::Constant(MuConstant{ty: ty, val: val}));
let ret = P(Value{ty: ty, v: Value_::Constant(val)});
self.constants.insert(const_name, ret.clone());
ret
}
pub fn declare_type(&mut self, type_name: MuTag, ty: P<MuType_>) -> P<MuType_> {
pub fn declare_type(&mut self, type_name: MuTag, ty: P<MuType>) -> P<MuType> {
debug_assert!(!self.types.contains_key(type_name));
self.types.insert(type_name, ty.clone());
......@@ -40,7 +40,7 @@ impl VMContext {
ty
}
pub fn declare_func_sig(&mut self, sig_name: MuTag, ret_tys: Vec<P<MuType_>>, arg_tys: Vec<P<MuType_>>) -> P<MuFuncSig> {
pub fn declare_func_sig(&mut self, sig_name: MuTag, ret_tys: Vec<P<MuType>>, arg_tys: Vec<P<MuType>>) -> P<MuFuncSig> {
debug_assert!(!self.func_sigs.contains_key(sig_name));
let ret = P(MuFuncSig{ret_tys: ret_tys, arg_tys: arg_tys});
......
tests/test_ir/test_ir.rs
View file @ e7ec3053
......@@ -23,13 +23,13 @@ pub fn factorial() -> VMContext {
// .typedef @void = void
// .typedef @int_8 = int<8>
// .typedef @int_32 = int<32>
let type_def_int64 = vm.declare_type("int_64", P(MuType_::int(64)));
let type_def_int1 = vm.declare_type("int_1", P(MuType_::int(1)));
let type_def_float = vm.declare_type("float", P(MuType_::float()));
let type_def_double = vm.declare_type("double", P(MuType_::double()));
let type_def_void = vm.declare_type("void", P(MuType_::void()));
let type_def_int8 = vm.declare_type("int8", P(MuType_::int(8)));
let type_def_int32 = vm.declare_type("int32", P(MuType_::int(32)));
let type_def_int64 = vm.declare_type("int_64", P(MuType::int(64)));
let type_def_int1 = vm.declare_type("int_1", P(MuType::int(1)));
let type_def_float = vm.declare_type("float", P(MuType::float()));
let type_def_double = vm.declare_type("double", P(MuType::double()));
let type_def_void = vm.declare_type("void", P(MuType::void()));
let type_def_int8 = vm.declare_type("int8", P(MuType::int(8)));
let type_def_int32 = vm.declare_type("int32", P(MuType::int(32)));
// .const @int_64_1 <@int_64> = 1
let const_def_int64_1 = vm.declare_const("int64_1", type_def_int64.clone(), Constant::Int(64, 1));
......@@ -38,24 +38,24 @@ pub fn factorial() -> VMContext {
let fac_sig = vm.declare_func_sig("fac_sig", vec![type_def_int64.clone()], vec![type_def_int64.clone()]);
// .funcdef @fac VERSION @fac_v1 <@fac_sig>
let fac_func_ref = P(MuType_::funcref(fac_sig.clone()));
let fac_func_ref = P(MuType::funcref(fac_sig.clone()));
// %blk_0(<@int_64> %n_3):
let mut blk_0 = Block::new("blk_0");
let blk_0_n_3 = TreeNode::new_value(Value::new_ssa(SSAVar{id: 0, tag: "n_3", ty: type_def_int64.clone()}));
let const_def_int64_1_local = TreeNode::new_value(const_def_int64_1.clone());
let blk_0_n_3 = TreeNode::new_ssa(0, "n_3", type_def_int64.clone());
let const_def_int64_1_local = TreeNode::new_value(1, "int64_1", const_def_int64_1.clone());
// %v48 = EQ <@int_64> %n_3 @int_64_1
let blk_0_v48 = TreeNode::new_value(Value::new_ssa(SSAVar{id: 1, tag: "v48", ty: type_def_int64.clone()}));
let blk_0_v48 = TreeNode::new_ssa(2, "v48", type_def_int64.clone());
let blk_0_v48_expr = Expression_::CmpOp(
CmpOp::EQ,
blk_0_n_3.clone(),
const_def_int64_1_local.clone()
);
let blk_0_inst0 = TreeNode::new_inst(Instruction::NonTerm(NonTermInstruction::Assign{left: vec![blk_0_v48.clone()], right: blk_0_v48_expr}));
let blk_0_inst0 = TreeNode::new_inst(3, "blk_0_inst0", Instruction::NonTerm(NonTermInstruction::Assign{left: vec![blk_0_v48.clone()], right: blk_0_v48_expr}));
// BRANCH2 %v48 %blk_2(@int_64_1) %blk_1(%n_3)
let blk_0_term = TreeNode::new_inst(Instruction::Term(Terminal::Branch2{
let blk_0_term = TreeNode::new_inst(4, "blk_0_term", Instruction::Term(Terminal::Branch2{
cond: blk_0_v48.clone(),
true_dest: Destination {
target: "blk_2",
......@@ -76,10 +76,10 @@ pub fn factorial() -> VMContext {
// %blk_2(<@int_64> %v53):
let mut blk_2 = Block::new("blk_2");
let blk_2_v53 = TreeNode::new_value(Value::new_ssa(SSAVar{id: 2, tag: "v53", ty: type_def_int64.clone()}));
let blk_2_v53 = TreeNode::new_ssa(5, "v53", type_def_int64.clone());
// RET %v53
let blk_2_term = TreeNode::new_inst(Instruction::Term(Terminal::Return(vec![blk_2_v53.clone()])));
let blk_2_term = TreeNode::new_inst(6, "blk_2_term", Instruction::Term(Terminal::Return(vec![blk_2_v53.clone()])));
let blk_2_content = BlockContent {
args: vec![blk_2_v53.clone()],
......@@ -90,24 +90,24 @@ pub fn factorial() -> VMContext {
// %blk_1(<@int_64> %n_3):
let mut blk_1 = Block::new("blk_1");
let blk_1_n_3 = TreeNode::new_value(Value::new_ssa(SSAVar{id: 3, tag: "n_3", ty: type_def_int64.clone()}));
let blk_1_n_3 = TreeNode::new_ssa(7, "n_3", type_def_int64.clone());
// %v50 = SUB <@int_64> %n_3 @int_64_1
let blk_1_v50 = TreeNode::new_value(Value::new_ssa(SSAVar{id: 4, tag: "v50", ty: type_def_int64.clone()}));
let blk_1_v50 = TreeNode::new_ssa(8, "v50", type_def_int64.clone());
let blk_1_v50_expr = Expression_::BinOp(
BinOp::Sub,
blk_1_n_3.clone(),
const_def_int64_1_local.clone()
);
let blk_1_inst0 = TreeNode::new_inst(Instruction::NonTerm(NonTermInstruction::Assign{left: vec![blk_1_v50.clone()], right: blk_1_v50_expr}));
let blk_1_inst0 = TreeNode::new_inst(9, "blk_1_inst0", Instruction::NonTerm(NonTermInstruction::Assign{left: vec![blk_1_v50.clone()], right: blk_1_v50_expr}));
// %v51 = CALL <@fac_sig> @fac (%v50)
let blk_1_v51 = TreeNode::new_value(Value::new_ssa(SSAVar{id: 5, tag: "v51", ty: type_def_int64.clone()}));
let blk_1_inst1 = TreeNode::new_inst(Instruction::NonTerm(NonTermInstruction::Assign{
let blk_1_v51 = TreeNode::new_ssa(10, "v51", type_def_int64.clone());
let blk_1_inst1 = TreeNode::new_inst(11, "blk_1_inst1", Instruction::NonTerm(NonTermInstruction::Assign{
left: vec![blk_1_v51.clone()],
right: Expression_::ExprCall {
data: CallData {
func: TreeNode::new_value(Value::new_ssa(SSAVar{id: 6, tag: "fac", ty: fac_func_ref.clone()})),
func: TreeNode::new_ssa(12, "fac", fac_func_ref.clone()),
args: vec![blk_1_v50.clone()],
convention: CallConvention::Mu
},
......@@ -116,18 +116,18 @@ pub fn factorial() -> VMContext {
}));
// %v52 = MUL <@int_64> %n_3 %v51
let blk_1_v52 = TreeNode::new_value(Value::new_ssa(SSAVar{id: 9, tag: "v52", ty: type_def_int64.clone()}));
let blk_1_v52 = TreeNode::new_ssa(13, "v52", type_def_int64.clone());
let blk_1_v52_expr = Expression_::BinOp(
BinOp::Mul,
blk_1_n_3.clone(),
blk_1_v51.clone()
);
let blk_1_inst2 = TreeNode::new_inst(Instruction::NonTerm(NonTermInstruction::Assign{
let blk_1_inst2 = TreeNode::new_inst(14, "blk_1_inst2", Instruction::NonTerm(NonTermInstruction::Assign{
left: vec![blk_1_v52.clone()],
right: blk_1_v52_expr
}));
let blk_1_term = TreeNode::new_inst(Instruction::Term(Terminal::Branch1 (
let blk_1_term = TreeNode::new_inst(15, "blk_1_term", Instruction::Term(Terminal::Branch1 (
Destination {
target: "blk_2",
args: vec![DestArg::Normal(blk_1_v52.clone())]
......
tests/test_ir/test_types.rs
View file @ e7ec3053
......@@ -15,61 +15,61 @@ macro_rules! println_type (
)
);
/// create one of each MuType_
fn create_types() -> Vec<P<MuType_>> {
/// create one of each MuType
fn create_types() -> Vec<P<MuType>> {
let mut types = vec![];
let t0 = MuType_::int(8);
let t0 = MuType::int(8);
types.push(P(t0));
let t1 = MuType_::float();
let t1 = MuType::float();
types.push(P(t1));
let t2 = MuType_::double();
let t2 = MuType::double();
types.push(P(t2));
let t3 = MuType_::muref(types[0].clone());
let t3 = MuType::muref(types[0].clone());
types.push(P(t3));
let t4 = MuType_::iref(types[0].clone());
let t4 = MuType::iref(types[0].clone());
types.push(P(t4));
let t5 = MuType_::weakref(types[0].clone());
let t5 = MuType::weakref(types[0].clone());
types.push(P(t5));
let t6 = MuType_::uptr(types[0].clone());
let t6 = MuType::uptr(types[0].clone());
types.push(P(t6));
let t7 = MuType_::mustruct("MyStructTag1", vec![types[0].clone(), types[1].clone()]);
let t7 = MuType::mustruct("MyStructTag1", vec![types[0].clone(), types[1].clone()]);
types.push(P(t7));
let t8 = MuType_::array(types[0].clone(), 5);
let t8 = MuType::array(types[0].clone(), 5);
types.push(P(t8));
let t9 = MuType_::hybrid(vec![types[7].clone(), types[1].clone()], types[0].clone());
let t9 = MuType::hybrid(vec![types[7].clone(), types[1].clone()], types[0].clone());
types.push(P(t9));
let t10 = MuType_::void();
let t10 = MuType::void();
types.push(P(t10));
let t11 = MuType_::threadref();
let t11 = MuType::threadref();
types.push(P(t11));
let t12 = MuType_::stackref();
let t12 = MuType::stackref();
types.push(P(t12));
let t13 = MuType_::tagref64();
let t13 = MuType::tagref64();
types.push(P(t13));
let t14 = MuType_::vector(types[0].clone(), 5);
let t14 = MuType::vector(types[0].clone(), 5);
types.push(P(t14));
let sig = P(MuFuncSig{ret_tys: vec![types[10].clone()], arg_tys: vec![types[0].clone(), types[0].clone()]});
let t15 = MuType_::funcref(sig.clone());
let t15 = MuType::funcref(sig.clone());
types.push(P(t15));
let t16 = MuType_::ufuncptr(sig.clone());
let t16 = MuType::ufuncptr(sig.clone());
types.push(P(t16));
types
......@@ -107,9 +107,9 @@ fn test_type_constructors() {
#[test]
fn test_cyclic_struct() {
// .typedef @cyclic_struct_ty = struct<ref<@cyclic_struct_ty> int<32>>
let ty = P(MuType_::mustruct_empty("MyStructTag2"));
let ref_ty = P(MuType_::muref(ty.clone()));
let i32_ty = P(MuType_::int(32));
let ty = P(MuType::mustruct_empty("MyStructTag2"));
let ref_ty = P(MuType::muref(ty.clone()));
let i32_ty = P(MuType::int(32));
{
STRUCT_TAG_MAP.write().unwrap().
......@@ -133,17 +133,17 @@ fn test_is_traced() {
assert_eq!(is_traced(&types[5]), true);
assert_eq!(is_traced(&types[6]), false);
assert_eq!(is_traced(&types[7]), false);
let struct3 = MuType_::mustruct("MyStructTag3", vec![types[3].clone(), types[0].clone()]);
let struct3 = MuType::mustruct("MyStructTag3", vec![types[3].clone(), types[0].clone()]);
assert_eq!(is_traced(&struct3), true);
let struct4 = MuType_::mustruct("MyStructTag4", vec![types[3].clone(), types[4].clone()]);
let struct4 = MuType::mustruct("MyStructTag4", vec![types[3].clone(), types[4].clone()]);
assert_eq!(is_traced(&struct4), true);
assert_eq!(is_traced(&types[8]), false);
let ref_array = MuType_::array(types[3].clone(), 5);
let ref_array = MuType::array(types[3].clone(), 5);
assert_eq!(is_traced(&ref_array), true);
assert_eq!(is_traced(&types[9]), false);
let fix_ref_hybrid = MuType_::hybrid(vec![types[3].clone(), types[0].clone()], types[0].clone());
let fix_ref_hybrid = MuType::hybrid(vec![types[3].clone(), types[0].clone()], types[0].clone());
assert_eq!(is_traced(&fix_ref_hybrid), true);
let var_ref_hybrid = MuType_::hybrid(vec![types[0].clone(), types[1].clone()], types[3].clone());
let var_ref_hybrid = MuType::hybrid(vec![types[0].clone(), types[1].clone()], types[3].clone());
assert_eq!(is_traced(&var_ref_hybrid), true);
assert_eq!(is_traced(&types[10]), false);
assert_eq!(is_traced(&types[11]), true);
......@@ -166,17 +166,17 @@ fn test_is_native_safe() {
assert_eq!(is_native_safe(&types[5]), false);
assert_eq!(is_native_safe(&types[6]), true);
assert_eq!(is_native_safe(&types[7]), true);
let struct3 = MuType_::mustruct("MyStructTag3", vec![types[3].clone(), types[0].clone()]);
let struct3 = MuType::mustruct("MyStructTag3", vec![types[3].clone(), types[0].clone()]);
assert_eq!(is_native_safe(&struct3), false);
let struct4 = MuType_::mustruct("MyStructTag4", vec![types[3].clone(), types[4].clone()]);
let struct4 = MuType::mustruct("MyStructTag4", vec![types[3].clone(), types[4].clone()]);
assert_eq!(is_native_safe(&struct4), false);
assert_eq!(is_native_safe(&types[8]), true);
let ref_array = MuType_::array(types[3].clone(), 5);
let ref_array = MuType::array(types[3].clone(), 5);
assert_eq!(is_native_safe(&ref_array), false);
assert_eq!(is_native_safe(&types[9]), true);
let fix_ref_hybrid = MuType_::hybrid(vec![types[3].clone(), types[0].clone()], types[0].clone());
let fix_ref_hybrid = MuType::hybrid(vec![types[3].clone(), types[0].clone()], types[0].clone());
assert_eq!(is_native_safe(&fix_ref_hybrid), false);
let var_ref_hybrid = MuType_::hybrid(vec![types[0].clone(), types[1].clone()], types[3].clone());
let var_ref_hybrid = MuType::hybrid(vec![types[0].clone(), types[1].clone()], types[3].clone());
assert_eq!(is_native_safe(&var_ref_hybrid), false);
assert_eq!(is_native_safe(&types[10]), true);
assert_eq!(is_native_safe(&types[11]), false);
......
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