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add reuse info to normal Tag ir constructor

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Folkert 2023-06-28 21:26:19 +02:00
parent c4b0a2ec29
commit 463f739c06
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8 changed files with 94 additions and 16 deletions
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57
crates/compiler/mono/src/ir.rs
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@ -1825,6 +1825,13 @@ pub struct HigherOrderLowLevel<'a> {
pub passed_function: PassedFunction<'a>,
}
#[derive(Clone, Copy, Debug, PartialEq)]
pub struct ReuseToken {
pub symbol: Symbol,
pub update_tag_id: bool,
pub update_mode: UpdateModeId,
}
#[derive(Clone, Debug, PartialEq)]
pub enum Expr<'a> {
Literal(Literal<'a>),
@ -1836,6 +1843,7 @@ pub enum Expr<'a> {
tag_layout: UnionLayout<'a>,
tag_id: TagIdIntType,
arguments: &'a [Symbol],
reuse: Option<ReuseToken>,
},
Struct(&'a [Symbol]),
NullPointer,
@ -1977,7 +1985,10 @@ impl<'a> Expr<'a> {
Call(call) => call.to_doc(alloc, pretty),
Tag {
tag_id, arguments, ..
tag_id,
arguments,
reuse: None,
..
} => {
let doc_tag = alloc
.text("TagId(")
@ -1990,6 +2001,30 @@ impl<'a> Expr<'a> {
.append(alloc.space())
.append(alloc.intersperse(it, " "))
}
Tag {
tag_id,
arguments,
reuse: Some(reuse_token),
..
} => {
let doc_tag = alloc
.text("TagId(")
.append(alloc.text(tag_id.to_string()))
.append(")");
let it = arguments.iter().map(|s| symbol_to_doc(alloc, *s, pretty));
alloc
.text("Reuse ")
.append(symbol_to_doc(alloc, reuse_token.symbol, pretty))
.append(alloc.space())
.append(format!("{:?}", reuse_token.update_mode))
.append(alloc.space())
.append(doc_tag)
.append(alloc.space())
.append(alloc.intersperse(it, " "))
}
NullPointer => alloc.text("NullPointer"),
Reuse {
symbol,
@ -6005,6 +6040,7 @@ where
tag_id,
tag_layout: union_layout,
arguments: symbols,
reuse: None,
};
Stmt::Let(assigned, expr, lambda_set_layout, env.arena.alloc(hole))
@ -6274,6 +6310,7 @@ fn convert_tag_union<'a>(
tag_layout: union_layout,
tag_id: tag_id as _,
arguments: field_symbols,
reuse: None,
};
(tag, union_layout)
@ -6296,6 +6333,7 @@ fn convert_tag_union<'a>(
tag_layout: union_layout,
tag_id: tag_id as _,
arguments: field_symbols,
reuse: None,
};
(tag, union_layout)
@ -6320,6 +6358,7 @@ fn convert_tag_union<'a>(
tag_layout: union_layout,
tag_id: tag_id as _,
arguments: field_symbols,
reuse: None,
};
(tag, union_layout)
@ -6346,6 +6385,7 @@ fn convert_tag_union<'a>(
tag_layout: union_layout,
tag_id: tag_id as _,
arguments: field_symbols,
reuse: None,
};
(tag, union_layout)
@ -6363,6 +6403,7 @@ fn convert_tag_union<'a>(
tag_layout: union_layout,
tag_id: tag_id as _,
arguments: field_symbols,
reuse: None,
};
(tag, union_layout)
@ -7532,6 +7573,7 @@ fn substitute_in_expr<'a>(
tag_layout,
tag_id,
arguments: args,
reuse,
} => {
let mut did_change = false;
let new_args = Vec::from_iter_in(
@ -7545,6 +7587,18 @@ fn substitute_in_expr<'a>(
arena,
);
let reuse = match *reuse {
Some(mut ru) => match substitute(subs, ru.symbol) {
Some(s) => {
did_change = true;
ru.symbol = s;
Some(ru)
}
None => Some(ru),
},
None => None,
};
if did_change {
let arguments = new_args.into_bump_slice();
@ -7552,6 +7606,7 @@ fn substitute_in_expr<'a>(
tag_layout: *tag_layout,
tag_id: *tag_id,
arguments,
reuse,
})
} else {
None