669 lines
24 KiB
Rust
669 lines
24 KiB
Rust
// -*- rust -*-
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import metadata::{creader, cstore};
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import session::session;
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import syntax::parse::{parser};
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import syntax::{ast, codemap};
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import front::attr;
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import middle::{trans, resolve, freevars, kind, ty, typeck, fn_usage,
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last_use, lint};
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import syntax::print::{pp, pprust};
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import util::{ppaux, filesearch};
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import back::link;
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import result::{ok, err};
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import std::getopts;
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import io::{reader_util, writer_util};
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import getopts::{optopt, optmulti, optflag, optflagopt, opt_present};
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import back::{x86, x86_64};
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enum pp_mode {ppm_normal, ppm_expanded, ppm_typed, ppm_identified,
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ppm_expanded_identified }
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fn default_configuration(sess: session, argv0: str, input: str) ->
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ast::crate_cfg {
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let libc = alt sess.targ_cfg.os {
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session::os_win32 { "msvcrt.dll" }
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session::os_macos { "libc.dylib" }
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session::os_linux { "libc.so.6" }
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session::os_freebsd { "libc.so.7" }
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_ { "libc.so" }
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};
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let mk = attr::mk_name_value_item_str;
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let arch = alt sess.targ_cfg.arch {
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session::arch_x86 { "x86" }
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session::arch_x86_64 { "x86_64" }
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session::arch_arm { "arm" }
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};
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ret [ // Target bindings.
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mk("target_os", os::sysname()),
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mk("target_arch", arch),
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mk("target_libc", libc),
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// Build bindings.
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mk("build_compiler", argv0),
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mk("build_input", input)];
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}
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fn build_configuration(sess: session, argv0: str, input: str) ->
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ast::crate_cfg {
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// Combine the configuration requested by the session (command line) with
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// some default and generated configuration items
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let default_cfg = default_configuration(sess, argv0, input);
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let user_cfg = sess.opts.cfg;
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// If the user wants a test runner, then add the test cfg
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let gen_cfg =
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{
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if sess.opts.test && !attr::contains_name(user_cfg, "test")
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{
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[attr::mk_word_item("test")]
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} else { [] }
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};
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ret user_cfg + gen_cfg + default_cfg;
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}
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// Convert strings provided as --cfg [cfgspec] into a crate_cfg
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fn parse_cfgspecs(cfgspecs: [str]) -> ast::crate_cfg {
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// FIXME: It would be nice to use the parser to parse all varieties of
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// meta_item here. At the moment we just support the meta_word variant.
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let words = [];
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for s: str in cfgspecs { words += [attr::mk_word_item(s)]; }
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ret words;
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}
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fn input_is_stdin(filename: str) -> bool { filename == "-" }
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fn parse_input(sess: session, cfg: ast::crate_cfg, input: str)
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-> @ast::crate {
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if !input_is_stdin(input) {
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parser::parse_crate_from_file(input, cfg, sess.parse_sess)
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} else {
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let src = @str::from_bytes(io::stdin().read_whole_stream());
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parser::parse_crate_from_source_str(input, src, cfg, sess.parse_sess)
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}
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}
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fn time<T>(do_it: bool, what: str, thunk: fn@() -> T) -> T {
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if !do_it { ret thunk(); }
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let start = std::time::precise_time_s();
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let rv = thunk();
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let end = std::time::precise_time_s();
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io::stdout().write_str(#fmt("time: %3.3f s\t%s\n",
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end - start, what));
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ret rv;
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}
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enum compile_upto {
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cu_parse,
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cu_expand,
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cu_typeck,
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cu_no_trans,
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cu_everything,
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}
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fn compile_upto(sess: session, cfg: ast::crate_cfg,
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input: str, upto: compile_upto,
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outputs: option<output_filenames>)
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-> {crate: @ast::crate, tcx: option<ty::ctxt>} {
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let time_passes = sess.opts.time_passes;
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let crate = time(time_passes, "parsing",
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bind parse_input(sess, cfg, input));
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if upto == cu_parse { ret {crate: crate, tcx: none}; }
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sess.building_library = session::building_library(
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sess.opts.crate_type, crate, sess.opts.test);
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crate =
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time(time_passes, "configuration",
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bind front::config::strip_unconfigured_items(crate));
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crate =
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time(time_passes, "maybe building test harness",
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bind front::test::modify_for_testing(sess, crate));
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crate =
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time(time_passes, "expansion",
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bind syntax::ext::expand::expand_crate(sess, crate));
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if upto == cu_expand { ret {crate: crate, tcx: none}; }
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crate =
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time(time_passes, "core injection",
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bind front::core_inject::maybe_inject_libcore_ref(sess, crate));
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let ast_map =
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time(time_passes, "ast indexing",
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bind middle::ast_map::map_crate(sess, *crate));
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time(time_passes, "external crate/lib resolution",
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bind creader::read_crates(sess, *crate));
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let {def_map, exp_map, impl_map} =
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time(time_passes, "resolution",
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bind resolve::resolve_crate(sess, ast_map, crate));
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let freevars =
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time(time_passes, "freevar finding",
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bind freevars::annotate_freevars(def_map, crate));
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let region_map =
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time(time_passes, "region resolution",
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bind middle::region::resolve_crate(sess, def_map, crate));
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let ty_cx = ty::mk_ctxt(sess, def_map, ast_map, freevars, region_map);
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let (method_map, vtable_map) =
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time(time_passes, "typechecking",
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bind typeck::check_crate(ty_cx, impl_map, crate));
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time(time_passes, "const checking",
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bind middle::check_const::check_crate(sess, crate, method_map,
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ty_cx));
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if upto == cu_typeck { ret {crate: crate, tcx: some(ty_cx)}; }
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time(time_passes, "block-use checking",
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bind middle::block_use::check_crate(ty_cx, crate));
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time(time_passes, "function usage",
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bind fn_usage::check_crate_fn_usage(ty_cx, crate));
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time(time_passes, "alt checking",
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bind middle::check_alt::check_crate(ty_cx, crate));
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time(time_passes, "typestate checking",
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bind middle::tstate::ck::check_crate(ty_cx, crate));
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let mutbl_map =
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time(time_passes, "mutability checking",
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bind middle::mutbl::check_crate(ty_cx, crate));
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time(time_passes, "region checking",
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bind middle::regionck::check_crate(ty_cx, crate));
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let (copy_map, ref_map) =
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time(time_passes, "alias checking",
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bind middle::alias::check_crate(ty_cx, crate));
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let last_uses = time(time_passes, "last use finding",
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bind last_use::find_last_uses(crate, def_map, ref_map, ty_cx));
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time(time_passes, "kind checking",
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bind kind::check_crate(ty_cx, method_map, last_uses, crate));
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lint::check_crate(ty_cx, crate, sess.opts.lint_opts, time_passes);
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if upto == cu_no_trans { ret {crate: crate, tcx: some(ty_cx)}; }
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let outputs = option::get(outputs);
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let maps = {mutbl_map: mutbl_map, copy_map: copy_map,
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last_uses: last_uses, impl_map: impl_map,
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method_map: method_map, vtable_map: vtable_map};
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let (llmod, link_meta) =
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time(time_passes, "translation",
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bind trans::base::trans_crate(
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sess, crate, ty_cx, outputs.obj_filename,
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exp_map, maps));
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time(time_passes, "LLVM passes",
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bind link::write::run_passes(sess, llmod, outputs.obj_filename));
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let stop_after_codegen =
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sess.opts.output_type != link::output_type_exe ||
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sess.opts.static && sess.building_library;
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if stop_after_codegen { ret {crate: crate, tcx: some(ty_cx)}; }
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time(time_passes, "linking",
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bind link::link_binary(sess, outputs.obj_filename,
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outputs.out_filename, link_meta));
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ret {crate: crate, tcx: some(ty_cx)};
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}
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fn compile_input(sess: session, cfg: ast::crate_cfg, input: str,
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outdir: option<str>, output: option<str>) {
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let upto = if sess.opts.parse_only { cu_parse }
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else if sess.opts.no_trans { cu_no_trans }
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else { cu_everything };
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let outputs = build_output_filenames(input, outdir, output, sess);
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compile_upto(sess, cfg, input, upto, some(outputs));
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}
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fn pretty_print_input(sess: session, cfg: ast::crate_cfg, input: str,
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ppm: pp_mode) {
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fn ann_paren_for_expr(node: pprust::ann_node) {
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alt node { pprust::node_expr(s, expr) { pprust::popen(s); } _ { } }
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}
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fn ann_typed_post(tcx: ty::ctxt, node: pprust::ann_node) {
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alt node {
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pprust::node_expr(s, expr) {
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pp::space(s.s);
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pp::word(s.s, "as");
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pp::space(s.s);
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pp::word(s.s, ppaux::ty_to_str(tcx, ty::expr_ty(tcx, expr)));
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pprust::pclose(s);
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}
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_ { }
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}
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}
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fn ann_identified_post(node: pprust::ann_node) {
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alt node {
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pprust::node_item(s, item) {
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pp::space(s.s);
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pprust::synth_comment(s, int::to_str(item.id, 10u));
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}
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pprust::node_block(s, blk) {
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pp::space(s.s);
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pprust::synth_comment(s,
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"block " + int::to_str(blk.node.id, 10u));
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}
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pprust::node_expr(s, expr) {
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pp::space(s.s);
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pprust::synth_comment(s, int::to_str(expr.id, 10u));
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pprust::pclose(s);
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}
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_ { }
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}
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}
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// Because the pretty printer needs to make a pass over the source
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// to collect comments and literals, and we need to support reading
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// from stdin, we're going to just suck the source into a string
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// so both the parser and pretty-printer can use it.
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let upto = alt ppm {
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ppm_expanded | ppm_expanded_identified { cu_expand }
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ppm_typed { cu_typeck }
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_ { cu_parse }
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};
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let {crate, tcx} = compile_upto(sess, cfg, input, upto, none);
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let ann: pprust::pp_ann = pprust::no_ann();
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alt ppm {
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ppm_typed {
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ann = {pre: ann_paren_for_expr,
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post: bind ann_typed_post(option::get(tcx), _)};
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}
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ppm_identified | ppm_expanded_identified {
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ann = {pre: ann_paren_for_expr, post: ann_identified_post};
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}
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ppm_expanded | ppm_normal {}
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}
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let src = codemap::get_filemap(sess.codemap, input).src;
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io::with_str_reader(*src) { |rdr|
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pprust::print_crate(sess.codemap, sess.span_diagnostic, crate, input,
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rdr, io::stdout(), ann);
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}
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}
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fn get_os(triple: str) -> option<session::os> {
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ret if str::contains(triple, "win32") ||
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str::contains(triple, "mingw32") {
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some(session::os_win32)
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} else if str::contains(triple, "darwin") {
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some(session::os_macos)
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} else if str::contains(triple, "linux") {
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some(session::os_linux)
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} else if str::contains(triple, "freebsd") {
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some(session::os_freebsd)
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} else { none };
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}
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fn get_arch(triple: str) -> option<session::arch> {
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ret if str::contains(triple, "i386") || str::contains(triple, "i486") ||
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str::contains(triple, "i586") ||
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str::contains(triple, "i686") ||
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str::contains(triple, "i786") {
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some(session::arch_x86)
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} else if str::contains(triple, "x86_64") {
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some(session::arch_x86_64)
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} else if str::contains(triple, "arm") ||
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str::contains(triple, "xscale") {
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some(session::arch_arm)
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} else { none };
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}
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fn build_target_config(sopts: @session::options,
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demitter: diagnostic::emitter) -> @session::config {
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let os = alt get_os(sopts.target_triple) {
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some(os) { os }
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none { early_error(demitter, "unknown operating system") }
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};
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let arch = alt get_arch(sopts.target_triple) {
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some(arch) { arch }
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none { early_error(demitter,
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"unknown architecture: " + sopts.target_triple) }
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};
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let (int_type, uint_type, float_type) = alt arch {
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session::arch_x86 {(ast::ty_i32, ast::ty_u32, ast::ty_f64)}
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session::arch_x86_64 {(ast::ty_i64, ast::ty_u64, ast::ty_f64)}
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session::arch_arm {(ast::ty_i32, ast::ty_u32, ast::ty_f64)}
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};
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let target_strs = alt arch {
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session::arch_x86 {x86::get_target_strs(os)}
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session::arch_x86_64 {x86_64::get_target_strs(os)}
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session::arch_arm {x86::get_target_strs(os)}
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};
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let target_cfg: @session::config =
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@{os: os, arch: arch, target_strs: target_strs, int_type: int_type,
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uint_type: uint_type, float_type: float_type};
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ret target_cfg;
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}
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fn host_triple() -> str {
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// Get the host triple out of the build environment. This ensures that our
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// idea of the host triple is the same as for the set of libraries we've
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// actually built. We can't just take LLVM's host triple because they
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// normalize all ix86 architectures to i386.
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// FIXME: Instead of grabbing the host triple we really should be
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// grabbing (at compile time) the target triple that this rustc is
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// built with and calling that (at runtime) the host triple.
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let ht = #env("CFG_HOST_TRIPLE");
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ret if ht != "" {
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ht
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} else {
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fail "rustc built without CFG_HOST_TRIPLE"
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};
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}
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fn build_session_options(match: getopts::match,
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demitter: diagnostic::emitter) -> @session::options {
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let crate_type = if opt_present(match, "lib") {
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session::lib_crate
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} else if opt_present(match, "bin") {
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session::bin_crate
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} else {
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session::unknown_crate
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};
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let static = opt_present(match, "static");
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let parse_only = opt_present(match, "parse-only");
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let no_trans = opt_present(match, "no-trans");
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let lint_opts = [];
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if opt_present(match, "no-lint-ctypes") {
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lint_opts += [(lint::ctypes, false)];
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}
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let output_type =
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if parse_only || no_trans {
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link::output_type_none
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} else if opt_present(match, "S") && opt_present(match, "emit-llvm") {
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link::output_type_llvm_assembly
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} else if opt_present(match, "S") {
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link::output_type_assembly
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} else if opt_present(match, "c") {
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link::output_type_object
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} else if opt_present(match, "emit-llvm") {
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link::output_type_bitcode
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} else { link::output_type_exe };
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let verify = !opt_present(match, "no-verify");
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let save_temps = opt_present(match, "save-temps");
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let extra_debuginfo = opt_present(match, "xg");
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let debuginfo = opt_present(match, "g") || extra_debuginfo;
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let stats = opt_present(match, "stats");
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let time_passes = opt_present(match, "time-passes");
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let time_llvm_passes = opt_present(match, "time-llvm-passes");
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let sysroot_opt = getopts::opt_maybe_str(match, "sysroot");
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let target_opt = getopts::opt_maybe_str(match, "target");
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let no_asm_comments = getopts::opt_present(match, "no-asm-comments");
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alt output_type {
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// unless we're emitting huamn-readable assembly, omit comments.
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link::output_type_llvm_assembly | link::output_type_assembly {}
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_ { no_asm_comments = true; }
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}
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let opt_level: uint =
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if opt_present(match, "O") {
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if opt_present(match, "opt-level") {
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early_error(demitter, "-O and --opt-level both provided");
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}
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2u
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} else if opt_present(match, "opt-level") {
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alt getopts::opt_str(match, "opt-level") {
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"0" { 0u }
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"1" { 1u }
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"2" { 2u }
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"3" { 3u }
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_ {
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early_error(demitter, "optimization level needs " +
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"to be between 0-3")
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}
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}
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} else { 0u };
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let target =
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alt target_opt {
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none { host_triple() }
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some(s) { s }
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};
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let addl_lib_search_paths = getopts::opt_strs(match, "L");
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let cfg = parse_cfgspecs(getopts::opt_strs(match, "cfg"));
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let test = opt_present(match, "test");
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let warn_unused_imports = opt_present(match, "warn-unused-imports");
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let enforce_mut_vars = opt_present(match, "enforce-mut-vars");
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let sopts: @session::options =
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@{crate_type: crate_type,
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static: static,
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optimize: opt_level,
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debuginfo: debuginfo,
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extra_debuginfo: extra_debuginfo,
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verify: verify,
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lint_opts: lint_opts,
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save_temps: save_temps,
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stats: stats,
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time_passes: time_passes,
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time_llvm_passes: time_llvm_passes,
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output_type: output_type,
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addl_lib_search_paths: addl_lib_search_paths,
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maybe_sysroot: sysroot_opt,
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target_triple: target,
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cfg: cfg,
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|
test: test,
|
|
parse_only: parse_only,
|
|
no_trans: no_trans,
|
|
no_asm_comments: no_asm_comments,
|
|
warn_unused_imports: warn_unused_imports,
|
|
enforce_mut_vars: enforce_mut_vars};
|
|
ret sopts;
|
|
}
|
|
|
|
fn build_session(sopts: @session::options, input: str,
|
|
demitter: diagnostic::emitter) -> session {
|
|
let codemap = codemap::new_codemap();
|
|
let diagnostic_handler =
|
|
diagnostic::mk_handler(some(demitter));
|
|
let span_diagnostic_handler =
|
|
diagnostic::mk_span_handler(diagnostic_handler, codemap);
|
|
build_session_(sopts, input, codemap, demitter,
|
|
span_diagnostic_handler)
|
|
}
|
|
|
|
fn build_session_(
|
|
sopts: @session::options, input: str,
|
|
codemap: codemap::codemap,
|
|
demitter: diagnostic::emitter,
|
|
span_diagnostic_handler: diagnostic::span_handler
|
|
) -> session {
|
|
let target_cfg = build_target_config(sopts, demitter);
|
|
let cstore = cstore::mk_cstore();
|
|
let filesearch = filesearch::mk_filesearch(
|
|
sopts.maybe_sysroot,
|
|
sopts.target_triple,
|
|
sopts.addl_lib_search_paths);
|
|
@{targ_cfg: target_cfg,
|
|
opts: sopts,
|
|
cstore: cstore,
|
|
parse_sess: @{
|
|
cm: codemap,
|
|
mutable next_id: 1,
|
|
span_diagnostic: span_diagnostic_handler,
|
|
mutable chpos: 0u,
|
|
mutable byte_pos: 0u
|
|
},
|
|
codemap: codemap,
|
|
// For a library crate, this is always none
|
|
mutable main_fn: none,
|
|
span_diagnostic: span_diagnostic_handler,
|
|
filesearch: filesearch,
|
|
mutable building_library: false,
|
|
working_dir: path::dirname(input)}
|
|
}
|
|
|
|
fn parse_pretty(sess: session, &&name: str) -> pp_mode {
|
|
if str::eq(name, "normal") {
|
|
ret ppm_normal;
|
|
} else if str::eq(name, "expanded") {
|
|
ret ppm_expanded;
|
|
} else if str::eq(name, "typed") {
|
|
ret ppm_typed;
|
|
} else if str::eq(name, "expanded,identified") {
|
|
ret ppm_expanded_identified;
|
|
} else if str::eq(name, "identified") {
|
|
ret ppm_identified;
|
|
}
|
|
sess.fatal("argument to `pretty` must be one of `normal`, `typed`, or " +
|
|
"`identified`");
|
|
}
|
|
|
|
fn opts() -> [getopts::opt] {
|
|
ret [optflag("h"), optflag("help"), optflag("v"), optflag("version"),
|
|
optflag("emit-llvm"), optflagopt("pretty"),
|
|
optflag("ls"), optflag("parse-only"), optflag("no-trans"),
|
|
optflag("O"), optopt("opt-level"), optmulti("L"), optflag("S"),
|
|
optopt("o"), optopt("out-dir"), optflag("xg"),
|
|
optflag("c"), optflag("g"), optflag("save-temps"),
|
|
optopt("sysroot"), optopt("target"), optflag("stats"),
|
|
optflag("time-passes"), optflag("time-llvm-passes"),
|
|
optflag("no-verify"),
|
|
optflag("no-lint-ctypes"),
|
|
optmulti("cfg"), optflag("test"),
|
|
optflag("lib"), optflag("bin"), optflag("static"), optflag("gc"),
|
|
optflag("no-asm-comments"),
|
|
optflag("warn-unused-imports"),
|
|
optflag("enforce-mut-vars")];
|
|
}
|
|
|
|
type output_filenames = @{out_filename: str, obj_filename:str};
|
|
|
|
fn build_output_filenames(ifile: str,
|
|
odir: option<str>,
|
|
ofile: option<str>,
|
|
sess: session)
|
|
-> output_filenames {
|
|
let obj_path = "";
|
|
let out_path: str = "";
|
|
let sopts = sess.opts;
|
|
let stop_after_codegen =
|
|
sopts.output_type != link::output_type_exe ||
|
|
sopts.static && sess.building_library;
|
|
|
|
|
|
let obj_suffix =
|
|
alt sopts.output_type {
|
|
link::output_type_none { "none" }
|
|
link::output_type_bitcode { "bc" }
|
|
link::output_type_assembly { "s" }
|
|
link::output_type_llvm_assembly { "ll" }
|
|
// Object and exe output both use the '.o' extension here
|
|
link::output_type_object | link::output_type_exe {
|
|
"o"
|
|
}
|
|
};
|
|
|
|
alt ofile {
|
|
none {
|
|
// "-" as input file will cause the parser to read from stdin so we
|
|
// have to make up a name
|
|
// We want to toss everything after the final '.'
|
|
let dirname = alt odir {
|
|
some(d) { d }
|
|
none {
|
|
if input_is_stdin(ifile) {
|
|
os::getcwd()
|
|
} else {
|
|
path::dirname(ifile)
|
|
}
|
|
}
|
|
};
|
|
|
|
let base_filename = if !input_is_stdin(ifile) {
|
|
let (path, _) = path::splitext(ifile);
|
|
path::basename(path)
|
|
} else {
|
|
"rust_out"
|
|
};
|
|
let base_path = path::connect(dirname, base_filename);
|
|
|
|
|
|
if sess.building_library {
|
|
let basename = path::basename(base_path);
|
|
let dylibname = os::dll_filename(basename);
|
|
out_path = path::connect(dirname, dylibname);
|
|
obj_path = path::connect(dirname, basename + "." + obj_suffix);
|
|
} else {
|
|
out_path = base_path;
|
|
obj_path = base_path + "." + obj_suffix;
|
|
}
|
|
}
|
|
|
|
some(out_file) {
|
|
out_path = out_file;
|
|
obj_path = if stop_after_codegen {
|
|
out_file
|
|
} else {
|
|
let (base, _) = path::splitext(out_file);
|
|
let modified = base + "." + obj_suffix;
|
|
modified
|
|
};
|
|
|
|
if sess.building_library {
|
|
// FIXME: We might want to warn here; we're actually not going to
|
|
// respect the user's choice of library name when it comes time to
|
|
// link, we'll be linking to lib<basename>-<hash>-<version>.so no
|
|
// matter what.
|
|
}
|
|
|
|
if odir != none {
|
|
sess.warn("ignoring --out-dir flag due to -o flag.");
|
|
}
|
|
}
|
|
}
|
|
ret @{out_filename: out_path,
|
|
obj_filename: obj_path};
|
|
}
|
|
|
|
fn early_error(emitter: diagnostic::emitter, msg: str) -> ! {
|
|
emitter(none, msg, diagnostic::fatal);
|
|
fail;
|
|
}
|
|
|
|
fn list_metadata(sess: session, path: str, out: io::writer) {
|
|
metadata::creader::list_file_metadata(sess, path, out);
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod test {
|
|
|
|
// When the user supplies --test we should implicitly supply --cfg test
|
|
#[test]
|
|
fn test_switch_implies_cfg_test() {
|
|
let match =
|
|
alt getopts::getopts(["--test"], opts()) {
|
|
ok(m) { m }
|
|
err(f) { fail "test_switch_implies_cfg_test: " +
|
|
getopts::fail_str(f); }
|
|
};
|
|
let sessopts = build_session_options(match, diagnostic::emit);
|
|
let sess = build_session(sessopts, "", diagnostic::emit);
|
|
let cfg = build_configuration(sess, "whatever", "whatever");
|
|
assert (attr::contains_name(cfg, "test"));
|
|
}
|
|
|
|
// When the user supplies --test and --cfg test, don't implicitly add
|
|
// another --cfg test
|
|
#[test]
|
|
fn test_switch_implies_cfg_test_unless_cfg_test() {
|
|
let match =
|
|
alt getopts::getopts(["--test", "--cfg=test"], opts()) {
|
|
ok(m) { m }
|
|
err(f) { fail "test_switch_implies_cfg_test_unless_cfg_test: " +
|
|
getopts::fail_str(f); }
|
|
};
|
|
let sessopts = build_session_options(match, diagnostic::emit);
|
|
let sess = build_session(sessopts, "", diagnostic::emit);
|
|
let cfg = build_configuration(sess, "whatever", "whatever");
|
|
let test_items = attr::find_meta_items_by_name(cfg, "test");
|
|
assert (vec::len(test_items) == 1u);
|
|
}
|
|
}
|
|
|
|
// Local Variables:
|
|
// mode: rust
|
|
// fill-column: 78;
|
|
// indent-tabs-mode: nil
|
|
// c-basic-offset: 4
|
|
// buffer-file-coding-system: utf-8-unix
|
|
// End:
|