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Use attributes for native module ABI and link name [temp]
This patch adds support of using attributes to specify native mode ABI and link name. The old optional syntax like: native "cdecl" mod llvm = "rustllvm" { ... } is still supported. This is a transitional commit to avoid making a stage1 (backward imcompatible) snapshot.
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@ -7,6 +7,7 @@
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import codemap::span;
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import util::interner;
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import ast::{node_id, spanned};
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import front::attr;
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tag restriction { UNRESTRICTED; RESTRICT_NO_CALL_EXPRS; }
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@ -2012,6 +2013,23 @@ fn parse_item_native_mod(p: parser, attrs: [ast::attribute]) -> @ast::item {
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} else {
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p.fatal("unsupported abi: " + t);
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}
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} else {
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abi =
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alt attr::get_meta_item_value_str_by_name(attrs, "abi") {
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none. { ast::native_abi_cdecl }
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some("rust-intrinsic") {
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ast::native_abi_rust_intrinsic
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}
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some("cdecl") {
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ast::native_abi_cdecl
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}
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some("stdcall") {
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ast::native_abi_stdcall
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}
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some(t) {
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p.fatal("unsupported abi: " + t);
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}
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};
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}
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expect_word(p, "mod");
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let id = parse_ident(p);
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@ -2019,7 +2037,13 @@ fn parse_item_native_mod(p: parser, attrs: [ast::attribute]) -> @ast::item {
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if p.peek() == token::EQ {
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expect(p, token::EQ);
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native_name = parse_str(p);
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} else { native_name = id; }
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} else {
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native_name =
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alt attr::get_meta_item_value_str_by_name(attrs, "link_name") {
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none. { id }
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some(nn) { nn }
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};
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}
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expect(p, token::LBRACE);
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let more_attrs = parse_inner_attrs_and_next(p);
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let inner_attrs = more_attrs.inner;
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