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Implement the try keyword with desugaring

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Sam Mohr 2024-11-01 17:34:11 -07:00
parent 69dd8d77f3
commit 308defac46
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9 changed files with 196 additions and 10 deletions
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9
crates/compiler/parse/src/normalize.rs
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@ -3,7 +3,6 @@ use bumpalo::Bump;
use roc_module::called_via::{BinOp, UnaryOp};
use roc_region::all::{Loc, Position, Region};
use crate::parser::EReturn;
use crate::{
ast::{
AbilityImpls, AbilityMember, AssignedField, Collection, Defs, Expr, FullAst, Header,
@ -23,9 +22,9 @@ use crate::{
parser::{
EAbility, EClosure, EExpect, EExposes, EExpr, EHeader, EIf, EImport, EImportParams,
EImports, EInParens, EList, EPackageEntry, EPackageName, EPackages, EParams, EPattern,
EProvides, ERecord, ERequires, EString, EType, ETypeAbilityImpl, ETypeApply, ETypeInParens,
ETypeInlineAlias, ETypeRecord, ETypeTagUnion, ETypedIdent, EWhen, PInParens, PList,
PRecord, SyntaxError,
EProvides, ERecord, ERequires, EReturn, EString, EType, ETypeAbilityImpl, ETypeApply,
ETypeInParens, ETypeInlineAlias, ETypeRecord, ETypeTagUnion, ETypedIdent, EWhen, PInParens,
PList, PRecord, SyntaxError,
},
};
@ -757,6 +756,7 @@ impl<'a> Normalize<'a> for Expr<'a> {
arena.alloc(a.normalize(arena)),
arena.alloc(b.normalize(arena)),
),
Expr::Try => Expr::Try,
Expr::Return(a, b) => Expr::Return(
arena.alloc(a.normalize(arena)),
b.map(|loc_b| &*arena.alloc(loc_b.normalize(arena))),
@ -1055,6 +1055,7 @@ impl<'a> Normalize<'a> for EExpr<'a> {
}
EExpr::Underscore(_pos) => EExpr::Underscore(Position::zero()),
EExpr::Crash(_pos) => EExpr::Crash(Position::zero()),
EExpr::Try(_pos) => EExpr::Try(Position::zero()),
EExpr::InParens(inner_err, _pos) => {
EExpr::InParens(inner_err.normalize(arena), Position::zero())
}