bjoernager/rust
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libsyntax/librustc: Allow mut qualifier in patterns.

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This commit is contained in:
Luqman Aden 2013-10-20 08:31:23 -04:00
parent c16a95c587
commit 12308db3d2
20 changed files with 111 additions and 148 deletions
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17
src/libsyntax/ext/build.rs
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@ -399,9 +399,12 @@ impl AstBuilder for @ExtCtxt {
}
fn stmt_let(&self, sp: Span, mutbl: bool, ident: ast::Ident, ex: @ast::Expr) -> @ast::Stmt {
let pat = self.pat_ident(sp, ident);
let pat = if mutbl {
self.pat_ident_binding_mode(sp, ident, ast::BindByValue(ast::MutMutable))
} else {
self.pat_ident(sp, ident)
};
let local = @ast::Local {
is_mutbl: mutbl,
ty: self.ty_infer(sp),
pat: pat,
init: Some(ex),
@ -419,9 +422,12 @@ impl AstBuilder for @ExtCtxt {
typ: ast::Ty,
ex: @ast::Expr)
-> @ast::Stmt {
let pat = self.pat_ident(sp, ident);
let pat = if mutbl {
self.pat_ident_binding_mode(sp, ident, ast::BindByValue(ast::MutMutable))
} else {
self.pat_ident(sp, ident)
};
let local = @ast::Local {
is_mutbl: mutbl,
ty: typ,
pat: pat,
init: Some(ex),
@ -624,7 +630,7 @@ impl AstBuilder for @ExtCtxt {
self.pat(span, ast::PatLit(expr))
}
fn pat_ident(&self, span: Span, ident: ast::Ident) -> @ast::Pat {
self.pat_ident_binding_mode(span, ident, ast::BindInfer)
self.pat_ident_binding_mode(span, ident, ast::BindByValue(ast::MutImmutable))
}
fn pat_ident_binding_mode(&self,
@ -710,7 +716,6 @@ impl AstBuilder for @ExtCtxt {
fn arg(&self, span: Span, ident: ast::Ident, ty: ast::Ty) -> ast::arg {
let arg_pat = self.pat_ident(span, ident);
ast::arg {
is_mutbl: false,
ty: ty,
pat: arg_pat,
id: ast::DUMMY_NODE_ID