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Implement except* syntax

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This commit is contained in:
Charlie Marsh
2023-02-20 13:40:19 -05:00
committed by Jeong YunWon
parent 8caa28f0f8
commit c7ed645cc6
4 changed files with 1428 additions and 0 deletions
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49
parser/python.lalrpop
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@@ -451,6 +451,27 @@ TryStatement: ast::Stmt = {
},
}
},
<location:@L> "try" ":" <body:Suite> <handlers:ExceptStarClause+> <else_suite:("else" ":" Suite)?> <finally:("finally" ":" Suite)?> <end_location:@R> => {
let orelse = else_suite.map(|s| s.2).unwrap_or_default();
let finalbody = finally.map(|s| s.2).unwrap_or_default();
let end_location = finalbody
.last()
.or_else(|| orelse.last())
.map(|last| last.end_location)
.or_else(|| handlers.last().map(|last| last.end_location))
.unwrap();
ast::Stmt {
custom: (),
location,
end_location,
node: ast::StmtKind::TryStar {
body,
handlers,
orelse,
finalbody,
},
}
},
<location:@L> "try" ":" <body:Suite> <finally:("finally" ":" Suite)> => {
let handlers = vec![];
let orelse = vec![];
@@ -470,6 +491,34 @@ TryStatement: ast::Stmt = {
},
};
ExceptStarClause: ast::Excepthandler = {
<location:@L> "except" "*" <typ:Test<"all">> ":" <body:Suite> => {
let end_location = body.last().unwrap().end_location.unwrap();
ast::Excepthandler::new(
location,
end_location,
ast::ExcepthandlerKind::ExceptHandler {
type_: Some(Box::new(typ)),
name: None,
body,
},
)
},
<location:@L> "except" "*" <x:(Test<"all"> "as" Identifier)> ":" <body:Suite> => {
let end_location = body.last().unwrap().end_location.unwrap();
ast::Excepthandler::new(
location,
end_location,
ast::ExcepthandlerKind::ExceptHandler {
type_: Some(Box::new(x.0)),
name: Some(x.2),
body,
},
)
},
};
ExceptClause: ast::Excepthandler = {
<location:@L> "except" <typ:Test<"all">?> ":" <body:Suite> => {
let end_location = body.last().unwrap().end_location.unwrap();