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visit::Visitor refactor: replace (&mut BorrowckVisitor, @BorrowckCtxt) with &mut BorrowckCtxt.

This commit is contained in:
Felix S. Klock II 2013-09-24 01:56:25 +02:00
parent eb55348a7c
commit 7eed184dbb
6 changed files with 33 additions and 36 deletions
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4
src/librustc/middle/borrowck/check_loans.rs
View File

@ -33,7 +33,7 @@ use util::ppaux::Repr;
#[deriving(Clone)]
struct CheckLoanCtxt<'self> {
bccx: @BorrowckCtxt,
bccx: &'self BorrowckCtxt,
dfcx_loans: &'self LoanDataFlow,
move_data: @move_data::FlowedMoveData,
all_loans: &'self [Loan],
@ -60,7 +60,7 @@ impl<'self> Visitor<()> for CheckLoanCtxt<'self> {
}
}
pub fn check_loans(bccx: @BorrowckCtxt,
pub fn check_loans(bccx: &BorrowckCtxt,
dfcx_loans: &LoanDataFlow,
move_data: move_data::FlowedMoveData,
all_loans: &[Loan],

14
src/librustc/middle/borrowck/gather_loans/gather_moves.rs
View File

@ -22,7 +22,7 @@ use syntax::ast_util;
use syntax::codemap::Span;
use util::ppaux::{UserString};
pub fn gather_decl(bccx: @BorrowckCtxt,
pub fn gather_decl(bccx: &BorrowckCtxt,
move_data: &mut MoveData,
decl_id: ast::NodeId,
_decl_span: Span,
@ -31,7 +31,7 @@ pub fn gather_decl(bccx: @BorrowckCtxt,
move_data.add_move(bccx.tcx, loan_path, decl_id, Declared);
}
pub fn gather_move_from_expr(bccx: @BorrowckCtxt,
pub fn gather_move_from_expr(bccx: &BorrowckCtxt,
move_data: &mut MoveData,
move_expr: @ast::Expr,
cmt: mc::cmt) {
@ -39,7 +39,7 @@ pub fn gather_move_from_expr(bccx: @BorrowckCtxt,
MoveExpr(move_expr), cmt);
}
pub fn gather_move_from_pat(bccx: @BorrowckCtxt,
pub fn gather_move_from_pat(bccx: &BorrowckCtxt,
move_data: &mut MoveData,
move_pat: @ast::Pat,
cmt: mc::cmt) {
@ -47,7 +47,7 @@ pub fn gather_move_from_pat(bccx: @BorrowckCtxt,
MovePat(move_pat), cmt);
}
fn gather_move_from_expr_or_pat(bccx: @BorrowckCtxt,
fn gather_move_from_expr_or_pat(bccx: &BorrowckCtxt,
move_data: &mut MoveData,
move_id: ast::NodeId,
move_kind: MoveKind,
@ -66,7 +66,7 @@ fn gather_move_from_expr_or_pat(bccx: @BorrowckCtxt,
}
}
pub fn gather_captures(bccx: @BorrowckCtxt,
pub fn gather_captures(bccx: &BorrowckCtxt,
move_data: &mut MoveData,
closure_expr: @ast::Expr) {
let captured_vars = bccx.capture_map.get(&closure_expr.id);
@ -83,7 +83,7 @@ pub fn gather_captures(bccx: @BorrowckCtxt,
}
}
pub fn gather_assignment(bccx: @BorrowckCtxt,
pub fn gather_assignment(bccx: &BorrowckCtxt,
move_data: &mut MoveData,
assignment_id: ast::NodeId,
assignment_span: Span,
@ -96,7 +96,7 @@ pub fn gather_assignment(bccx: @BorrowckCtxt,
assignee_id);
}
fn check_is_legal_to_move_from(bccx: @BorrowckCtxt,
fn check_is_legal_to_move_from(bccx: &BorrowckCtxt,
cmt0: mc::cmt,
cmt: mc::cmt) -> bool {
match cmt.cat {

8
src/librustc/middle/borrowck/gather_loans/lifetime.rs
View File

@ -20,7 +20,7 @@ use syntax::ast;
use syntax::codemap::Span;
use util::ppaux::{note_and_explain_region};
pub fn guarantee_lifetime(bccx: @BorrowckCtxt,
pub fn guarantee_lifetime(bccx: &BorrowckCtxt,
item_scope_id: ast::NodeId,
root_scope_id: ast::NodeId,
span: Span,
@ -42,8 +42,8 @@ pub fn guarantee_lifetime(bccx: @BorrowckCtxt,
///////////////////////////////////////////////////////////////////////////
// Private
struct GuaranteeLifetimeContext {
bccx: @BorrowckCtxt,
struct GuaranteeLifetimeContext<'self> {
bccx: &'self BorrowckCtxt,
// the node id of the function body for the enclosing item
item_scope_id: ast::NodeId,
@ -58,7 +58,7 @@ struct GuaranteeLifetimeContext {
cmt_original: mc::cmt
}
impl GuaranteeLifetimeContext {
impl<'self> GuaranteeLifetimeContext<'self> {
fn tcx(&self) -> ty::ctxt {
self.bccx.tcx
}

12
src/librustc/middle/borrowck/gather_loans/mod.rs
View File

@ -64,8 +64,8 @@ mod gather_moves;
/// No good. Instead what will happen is that `root_ub` will be set to the
/// body of the while loop and we will refuse to root the pointer `&*x`
/// because it would have to be rooted for a region greater than `root_ub`.
struct GatherLoanCtxt {
bccx: @BorrowckCtxt,
struct GatherLoanCtxt<'self> {
bccx: &'self BorrowckCtxt,
id_range: id_range,
move_data: @mut move_data::MoveData,
all_loans: @mut ~[Loan],
@ -73,7 +73,7 @@ struct GatherLoanCtxt {
repeating_ids: ~[ast::NodeId]
}
impl visit::Visitor<()> for GatherLoanCtxt {
impl<'self> visit::Visitor<()> for GatherLoanCtxt<'self> {
fn visit_expr(&mut self, ex:@Expr, _:()) {
gather_loans_in_expr(self, ex);
}
@ -100,7 +100,7 @@ impl visit::Visitor<()> for GatherLoanCtxt {
fn visit_item(&mut self, _:@ast::item, _:()) { }
}
pub fn gather_loans(bccx: @BorrowckCtxt,
pub fn gather_loans(bccx: &BorrowckCtxt,
decl: &ast::fn_decl,
body: &ast::Block)
-> (id_range, @mut ~[Loan], @mut move_data::MoveData) {
@ -315,7 +315,7 @@ fn gather_loans_in_expr(this: &mut GatherLoanCtxt,
}
}
impl GatherLoanCtxt {
impl<'self> GatherLoanCtxt<'self> {
pub fn tcx(&self) -> ty::ctxt { self.bccx.tcx }
pub fn push_repeating_id(&mut self, id: ast::NodeId) {
@ -532,7 +532,7 @@ impl GatherLoanCtxt {
// }
// }
fn check_mutability(bccx: @BorrowckCtxt,
fn check_mutability(bccx: &BorrowckCtxt,
borrow_span: Span,
cmt: mc::cmt,
req_mutbl: LoanMutability) {

8
src/librustc/middle/borrowck/gather_loans/restrictions.rs
View File

@ -23,7 +23,7 @@ pub enum RestrictionResult {
SafeIf(@LoanPath, ~[Restriction])
}
pub fn compute_restrictions(bccx: @BorrowckCtxt,
pub fn compute_restrictions(bccx: &BorrowckCtxt,
span: Span,
cmt: mc::cmt,
restr: RestrictionSet) -> RestrictionResult {
@ -39,13 +39,13 @@ pub fn compute_restrictions(bccx: @BorrowckCtxt,
///////////////////////////////////////////////////////////////////////////
// Private
struct RestrictionsContext {
bccx: @BorrowckCtxt,
struct RestrictionsContext<'self> {
bccx: &'self BorrowckCtxt,
span: Span,
cmt_original: mc::cmt
}
impl RestrictionsContext {
impl<'self> RestrictionsContext<'self> {
fn tcx(&self) -> ty::ctxt {
self.bccx.tcx
}

23
src/librustc/middle/borrowck/mod.rs
View File

@ -61,12 +61,10 @@ impl Clone for LoanDataFlowOperator {
pub type LoanDataFlow = DataFlowContext<LoanDataFlowOperator>;
struct BorrowckVisitor;
impl Visitor<@BorrowckCtxt> for BorrowckVisitor {
impl Visitor<()> for BorrowckCtxt {
fn visit_fn(&mut self, fk:&fn_kind, fd:&fn_decl,
b:&Block, s:Span, n:NodeId, e:@BorrowckCtxt) {
borrowck_fn(self, fk, fd, b, s, n, e);
b:&Block, s:Span, n:NodeId, _:()) {
borrowck_fn(self, fk, fd, b, s, n);
}
}
@ -78,7 +76,7 @@ pub fn check_crate(
capture_map: moves::CaptureMap,
crate: &ast::Crate) -> (root_map, write_guard_map)
{
let bccx = @BorrowckCtxt {
let mut bccx = BorrowckCtxt {
tcx: tcx,
method_map: method_map,
moves_map: moves_map,
@ -96,9 +94,9 @@ pub fn check_crate(
guaranteed_paths: 0,
}
};
let bccx = &mut bccx;
let mut v = BorrowckVisitor;
visit::walk_crate(&mut v, crate, bccx);
visit::walk_crate(bccx, crate, ());
if tcx.sess.borrowck_stats() {
io::println("--- borrowck stats ---");
@ -116,20 +114,19 @@ pub fn check_crate(
return (bccx.root_map, bccx.write_guard_map);
fn make_stat(bccx: &BorrowckCtxt, stat: uint) -> ~str {
fn make_stat(bccx: &mut BorrowckCtxt, stat: uint) -> ~str {
let stat_f = stat as float;
let total = bccx.stats.guaranteed_paths as float;
fmt!("%u (%.0f%%)", stat , stat_f * 100f / total)
}
}
fn borrowck_fn(v: &mut BorrowckVisitor,
fn borrowck_fn(this: &mut BorrowckCtxt,
fk: &visit::fn_kind,
decl: &ast::fn_decl,
body: &ast::Block,
sp: Span,
id: ast::NodeId,
this: @BorrowckCtxt) {
id: ast::NodeId) {
match fk {
&visit::fk_anon(*) |
&visit::fk_fn_block(*) => {
@ -166,7 +163,7 @@ fn borrowck_fn(v: &mut BorrowckVisitor,
}
}
visit::walk_fn(v, fk, decl, body, sp, id, this);
visit::walk_fn(this, fk, decl, body, sp, id, ());
}
// ----------------------------------------------------------------------