2012-12-03 18:48:01 -06:00
|
|
|
// Copyright 2012 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.
|
|
|
|
|
2013-01-08 21:37:25 -06:00
|
|
|
use core::prelude::*;
|
2013-01-07 16:16:52 -06:00
|
|
|
|
2012-12-23 16:41:37 -06:00
|
|
|
use middle::astencode;
|
2012-12-13 15:05:22 -06:00
|
|
|
use middle::trans::base::{get_insn_ctxt};
|
|
|
|
use middle::trans::base::{impl_owned_self, impl_self, no_self};
|
|
|
|
use middle::trans::base::{trans_item, get_item_val, self_arg, trans_fn};
|
|
|
|
use middle::trans::common::*;
|
2012-12-23 16:41:37 -06:00
|
|
|
use middle::trans::common;
|
|
|
|
use middle::trans::inline;
|
|
|
|
use middle::trans::monomorphize;
|
2012-12-13 15:05:22 -06:00
|
|
|
|
2012-12-23 16:41:37 -06:00
|
|
|
use core::vec;
|
2012-08-28 17:54:45 -05:00
|
|
|
use syntax::ast;
|
|
|
|
use syntax::ast_map::{path, path_mod, path_name};
|
2012-12-13 15:05:22 -06:00
|
|
|
use syntax::ast_util::local_def;
|
2012-08-28 17:54:45 -05:00
|
|
|
|
2012-10-08 14:39:30 -05:00
|
|
|
// `translate` will be true if this function is allowed to translate the
|
|
|
|
// item and false otherwise. Currently, this parameter is set to false when
|
|
|
|
// translating default methods.
|
2013-02-19 01:40:42 -06:00
|
|
|
pub fn maybe_instantiate_inline(ccx: @CrateContext, fn_id: ast::def_id,
|
2013-01-29 19:57:02 -06:00
|
|
|
translate: bool)
|
2012-10-08 14:39:30 -05:00
|
|
|
-> ast::def_id {
|
2012-08-28 17:54:45 -05:00
|
|
|
let _icx = ccx.insn_ctxt("maybe_instantiate_inline");
|
2013-02-05 21:41:45 -06:00
|
|
|
match ccx.external.find(&fn_id) {
|
2012-08-28 17:54:45 -05:00
|
|
|
Some(Some(node_id)) => {
|
|
|
|
// Already inline
|
|
|
|
debug!("maybe_instantiate_inline(%s): already inline as node id %d",
|
|
|
|
ty::item_path_str(ccx.tcx, fn_id), node_id);
|
|
|
|
local_def(node_id)
|
|
|
|
}
|
|
|
|
Some(None) => fn_id, // Not inlinable
|
|
|
|
None => { // Not seen yet
|
|
|
|
match csearch::maybe_get_item_ast(
|
|
|
|
ccx.tcx, fn_id,
|
|
|
|
|a,b,c,d| {
|
2013-01-10 08:29:26 -06:00
|
|
|
astencode::decode_inlined_item(a, b, ccx.maps,
|
|
|
|
/*bad*/ copy c, d)
|
2012-08-28 17:54:45 -05:00
|
|
|
}) {
|
|
|
|
|
|
|
|
csearch::not_found => {
|
|
|
|
ccx.external.insert(fn_id, None);
|
|
|
|
fn_id
|
|
|
|
}
|
|
|
|
csearch::found(ast::ii_item(item)) => {
|
|
|
|
ccx.external.insert(fn_id, Some(item.id));
|
2012-09-12 16:48:13 -05:00
|
|
|
ccx.stats.n_inlines += 1;
|
2012-10-08 14:39:30 -05:00
|
|
|
if translate { trans_item(ccx, *item); }
|
2012-08-28 17:54:45 -05:00
|
|
|
local_def(item.id)
|
|
|
|
}
|
|
|
|
csearch::found(ast::ii_foreign(item)) => {
|
|
|
|
ccx.external.insert(fn_id, Some(item.id));
|
|
|
|
local_def(item.id)
|
|
|
|
}
|
|
|
|
csearch::found_parent(parent_id, ast::ii_item(item)) => {
|
|
|
|
ccx.external.insert(parent_id, Some(item.id));
|
|
|
|
let mut my_id = 0;
|
|
|
|
match item.node {
|
|
|
|
ast::item_enum(_, _) => {
|
|
|
|
let vs_here = ty::enum_variants(ccx.tcx, local_def(item.id));
|
|
|
|
let vs_there = ty::enum_variants(ccx.tcx, parent_id);
|
2012-09-28 17:48:25 -05:00
|
|
|
for vec::each2(*vs_here, *vs_there) |here, there| {
|
2012-08-28 17:54:45 -05:00
|
|
|
if there.id == fn_id { my_id = here.id.node; }
|
|
|
|
ccx.external.insert(there.id, Some(here.id.node));
|
|
|
|
}
|
|
|
|
}
|
|
|
|
_ => ccx.sess.bug(~"maybe_instantiate_inline: item has a \
|
|
|
|
non-enum parent")
|
|
|
|
}
|
2012-10-08 14:39:30 -05:00
|
|
|
if translate { trans_item(ccx, *item); }
|
2012-08-28 17:54:45 -05:00
|
|
|
local_def(my_id)
|
|
|
|
}
|
|
|
|
csearch::found_parent(_, _) => {
|
|
|
|
ccx.sess.bug(~"maybe_get_item_ast returned a found_parent \
|
|
|
|
with a non-item parent");
|
|
|
|
}
|
|
|
|
csearch::found(ast::ii_method(impl_did, mth)) => {
|
2012-09-12 16:48:13 -05:00
|
|
|
ccx.stats.n_inlines += 1;
|
2012-08-28 17:54:45 -05:00
|
|
|
ccx.external.insert(fn_id, Some(mth.id));
|
2013-02-19 01:40:42 -06:00
|
|
|
let ty::ty_param_bounds_and_ty {
|
|
|
|
bounds: impl_bnds,
|
|
|
|
region_param: _,
|
|
|
|
ty: _
|
|
|
|
} = ty::lookup_item_type(ccx.tcx, impl_did);
|
2013-02-14 23:50:03 -06:00
|
|
|
if translate &&
|
|
|
|
impl_bnds.len() + mth.generics.ty_params.len() == 0u
|
|
|
|
{
|
2012-08-28 17:54:45 -05:00
|
|
|
let llfn = get_item_val(ccx, mth.id);
|
|
|
|
let path = vec::append(
|
|
|
|
ty::item_path(ccx.tcx, impl_did),
|
|
|
|
~[path_name(mth.ident)]);
|
2012-12-02 17:45:20 -06:00
|
|
|
let self_kind = match mth.self_ty.node {
|
|
|
|
ast::sty_static => no_self,
|
|
|
|
_ => {
|
2012-12-05 20:10:45 -06:00
|
|
|
let self_ty = ty::node_id_to_type(ccx.tcx,
|
|
|
|
mth.self_id);
|
2012-12-02 17:45:20 -06:00
|
|
|
debug!("calling inline trans_fn with self_ty %s",
|
|
|
|
ty_to_str(ccx.tcx, self_ty));
|
|
|
|
match mth.self_ty.node {
|
|
|
|
ast::sty_value => impl_owned_self(self_ty),
|
|
|
|
_ => impl_self(self_ty),
|
|
|
|
}
|
|
|
|
}
|
|
|
|
};
|
2012-11-26 20:08:01 -06:00
|
|
|
trans_fn(ccx,
|
|
|
|
path,
|
2013-01-31 19:12:29 -06:00
|
|
|
&mth.decl,
|
|
|
|
&mth.body,
|
2012-11-26 20:08:01 -06:00
|
|
|
llfn,
|
|
|
|
self_kind,
|
|
|
|
None,
|
|
|
|
mth.id,
|
2012-10-08 14:39:30 -05:00
|
|
|
Some(impl_did));
|
2012-08-28 17:54:45 -05:00
|
|
|
}
|
|
|
|
local_def(mth.id)
|
|
|
|
}
|
2012-12-04 12:50:00 -06:00
|
|
|
csearch::found(ast::ii_dtor(ref dtor, _, _, _)) => {
|
|
|
|
ccx.external.insert(fn_id, Some((*dtor).node.id));
|
|
|
|
local_def((*dtor).node.id)
|
2012-08-28 17:54:45 -05:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2012-10-08 14:39:30 -05:00
|
|
|
|