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Make output type in ast::FnDecl optional

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This commit is contained in:
Seo Sanghyeon 2015-01-18 22:49:19 +09:00
parent a833337943
commit 3f0cc8011a
14 changed files with 76 additions and 85 deletions
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29
src/libsyntax/parse/parser.rs
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@ -19,7 +19,8 @@ use ast::{Mod, BiAdd, Arg, Arm, Attribute, BindByRef, BindByValue};
use ast::{BiBitAnd, BiBitOr, BiBitXor, BiRem, BiLt, BiGt, Block};
use ast::{BlockCheckMode, CaptureByRef, CaptureByValue, CaptureClause};
use ast::{Crate, CrateConfig, Decl, DeclItem};
use ast::{DeclLocal, DefaultBlock, UnDeref, BiDiv, EMPTY_CTXT, EnumDef, ExplicitSelf};
use ast::{DeclLocal, DefaultBlock, DefaultReturn};
use ast::{UnDeref, BiDiv, EMPTY_CTXT, EnumDef, ExplicitSelf};
use ast::{Expr, Expr_, ExprAddrOf, ExprMatch, ExprAgain};
use ast::{ExprAssign, ExprAssignOp, ExprBinary, ExprBlock, ExprBox};
use ast::{ExprBreak, ExprCall, ExprCast};
@ -1426,11 +1427,7 @@ impl<'a> Parser<'a> {
}
} else {
let pos = self.span.lo;
Return(P(Ty {
id: ast::DUMMY_NODE_ID,
node: TyTup(vec![]),
span: mk_sp(pos, pos),
}))
DefaultReturn(mk_sp(pos, pos))
}
}
@ -4548,15 +4545,7 @@ impl<'a> Parser<'a> {
(optional_unboxed_closure_kind, args)
}
};
let output = if self.check(&token::RArrow) {
self.parse_ret_ty()
} else {
Return(P(Ty {
id: ast::DUMMY_NODE_ID,
node: TyInfer,
span: self.span,
}))
};
let output = self.parse_ret_ty();
(P(FnDecl {
inputs: inputs_captures,
@ -4573,15 +4562,7 @@ impl<'a> Parser<'a> {
seq_sep_trailing_allowed(token::Comma),
|p| p.parse_fn_block_arg());
let output = if self.check(&token::RArrow) {
self.parse_ret_ty()
} else {
Return(P(Ty {
id: ast::DUMMY_NODE_ID,
node: TyInfer,
span: self.span,
}))
};
let output = self.parse_ret_ty();
P(FnDecl {
inputs: inputs,