49 lines
1.9 KiB
Rust
49 lines
1.9 KiB
Rust
|
// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
|
||
|
|
// file at the top-level directory of this distribution and at
|
||
|
|
// http://rust-lang.org/COPYRIGHT.
|
||
|
|
//
|
||
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
||
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
||
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
||
|
|
// option. This file may not be copied, modified, or distributed
|
||
|
|
// except according to those terms.
|
||
|
|
|
||
|
|
use rustc::middle::ty::LvaluePreference;
|
||
|
|
use rustc_mir::repr as mir;
|
||
|
|
use trans::common::Block;
|
||
|
|
use trans::debuginfo::DebugLoc;
|
||
|
|
use trans::glue;
|
||
|
|
|
||
|
|
use super::MirContext;
|
||
|
|
|
||
|
|
impl<'bcx, 'tcx> MirContext<'bcx, 'tcx> {
|
||
|
|
pub fn trans_statement(&mut self,
|
||
|
|
bcx: Block<'bcx, 'tcx>,
|
||
|
|
statement: &mir::Statement<'tcx>)
|
||
|
|
-> Block<'bcx, 'tcx> {
|
||
|
|
debug!("trans_statement(statement={:?})", statement);
|
||
|
|
|
||
|
|
match statement.kind {
|
||
|
|
mir::StatementKind::Assign(ref lvalue, ref rvalue) => {
|
||
|
|
let tr_dest = self.trans_lvalue(bcx, lvalue);
|
||
|
|
self.trans_rvalue(bcx, tr_dest.llval, rvalue);
|
||
|
|
bcx
|
||
|
|
}
|
||
|
|
|
||
|
|
mir::StatementKind::Drop(mir::DropKind::Deep, ref lvalue) => {
|
||
|
|
let tr_lvalue = self.trans_lvalue(bcx, lvalue);
|
||
|
|
let ty = tr_lvalue.ty.to_ty(bcx.tcx());
|
||
|
|
glue::drop_ty(bcx, tr_lvalue.llval, ty, DebugLoc::None)
|
||
|
|
}
|
||
|
|
|
||
|
|
mir::StatementKind::Drop(mir::DropKind::Free, ref lvalue) => {
|
||
|
|
let tr_lvalue = self.trans_lvalue(bcx, lvalue);
|
||
|
|
let ty = tr_lvalue.ty.to_ty(bcx.tcx());
|
||
|
|
let content_ty = ty.builtin_deref(true, LvaluePreference::NoPreference);
|
||
|
|
let content_ty = content_ty.unwrap().ty;
|
||
|
|
glue::trans_exchange_free_ty(bcx, tr_lvalue.llval, content_ty, DebugLoc::None)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|