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use common::*;
use syntax::ast;
use syntax::ast_util::local_def;
use syntax::ast_map::{path, path_mod, path_name};
use base::{trans_item, get_item_val, self_arg, trans_fn,
impl_self, get_insn_ctxt};
fn maybe_instantiate_inline(ccx: @crate_ctxt, fn_id: ast::def_id)
-> ast::def_id
{
let _icx = ccx.insn_ctxt("maybe_instantiate_inline");
match ccx.external.find(fn_id) {
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| {
astencode::decode_inlined_item(a, b, ccx.maps, c, d)
}) {
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));
ccx.stats.n_inlines += 1;
trans_item(ccx, *item);
local_def(item.id)
}
csearch::found(ast::ii_ctor(ctor, _, _, _)) => {
ccx.external.insert(fn_id, Some(ctor.node.id));
local_def(ctor.node.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);
for vec::each2(*vs_here, *vs_there) |here, there| {
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")
}
trans_item(ccx, *item);
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)) => {
ccx.stats.n_inlines += 1;
ccx.external.insert(fn_id, Some(mth.id));
let {bounds: impl_bnds, region_param: _, ty: impl_ty} =
ty::lookup_item_type(ccx.tcx, impl_did);
if (*impl_bnds).len() + mth.tps.len() == 0u {
let llfn = get_item_val(ccx, mth.id);
let path = vec::append(
ty::item_path(ccx.tcx, impl_did),
~[path_name(mth.ident)]);
trans_fn(ccx, path, mth.decl, mth.body,
llfn, impl_self(impl_ty), None, mth.id);
}
local_def(mth.id)
}
csearch::found(ast::ii_dtor(dtor, _, _, _)) => {
ccx.external.insert(fn_id, Some(dtor.node.id));
local_def(dtor.node.id)
}
}
}
}
}
|
