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WIP: tuple, array match guard codegen

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This commit is contained in:
Shunsuke Shibayama 2022-12-04 12:16:37 +09:00
parent e9d0642b29
commit f36d54f51e
1 changed files with 32 additions and 4 deletions
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36
compiler/erg_compiler/codegen.rs
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@ -1735,7 +1735,7 @@ impl PyCodeGenerator {
}
fn emit_match_guard(&mut self, t_spec: TypeSpec, pop_jump_points: &mut Vec<usize>) {
#[allow(clippy::single_match)]
log!(info "entered {} ({t_spec})", fn_name!());
match t_spec {
TypeSpec::Enum(enum_t) => {
let elems = ValueObj::vec_from_const_args(enum_t);
@ -1785,14 +1785,42 @@ impl PyCodeGenerator {
self.write_arg(0);
self.stack_dec();
}
// _: (Int, Str)
TypeSpec::Tuple(tup) => {
let len = tup.len();
for (i, t_spec) in tup.into_iter().enumerate() {
if i != 0 && i != len - 1 {
self.dup_top();
}
self.emit_load_const(i as i32);
self.write_instr(Opcode311::BINARY_SUBSCR);
self.write_arg(0);
self.stack_dec();
self.emit_match_guard(t_spec, pop_jump_points);
}
}
// TODO: consider ordering (e.g. both [1, 2] and [2, 1] is type of [{1, 2}; 2])
TypeSpec::Array(arr) => {
let ValueObj::Nat(len) = ValueObj::from_const_expr(arr.len) else { todo!() };
for i in 0..=(len - 1) {
if i != 0 && i != len - 1 {
self.dup_top();
}
self.emit_load_const(i as i32);
self.write_instr(Opcode311::BINARY_SUBSCR);
self.write_arg(0);
self.stack_dec();
self.emit_match_guard(*arr.ty.clone(), pop_jump_points);
}
}
/*TypeSpec::Interval { op, lhs, rhs } => {
let binop = BinOp::new(op, lhs.downcast(), rhs.downcast(), VarInfo::default());
self.emit_binop(binop);
}*/
// TODO:
other => {
log!(err "{other}")
}
TypeSpec::Infer(_) => unreachable!(),
// TODO:
other => log!(err "{other}"),
}
}