1 // Copyright 2014 The Rust Project Developers. See the COPYRIGHT
2 // file at the top-level directory of this distribution and at
3 // http://rust-lang.org/COPYRIGHT.
5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
8 // option. This file may not be copied, modified, or distributed
9 // except according to those terms.
11 //! Contains infrastructure for configuring the compiler, including parsing
12 //! command line options.
14 use driver::{early_error, early_warn};
16 use driver::session::Session;
20 use back::target_strs;
21 use back::{arm, x86, x86_64, mips, mipsel};
26 use syntax::ast::{IntTy, UintTy};
28 use syntax::attr::AttrMetaMethods;
29 use syntax::diagnostic::{ColorConfig, Auto, Always, Never};
31 use syntax::parse::token::InternedString;
33 use std::collections::{HashSet, HashMap};
34 use getopts::{optopt, optmulti, optflag, optflagopt};
36 use std::cell::{RefCell};
43 pub arch: abi::Architecture,
44 pub target_strs: target_strs::t,
46 pub uint_type: UintTy,
49 #[deriving(Clone, PartialEq)]
57 #[deriving(Clone, PartialEq)]
58 pub enum DebugInfoLevel {
66 // The crate config requested for the session, which may be combined
67 // with additional crate configurations during the compile process
68 pub crate_types: Vec<CrateType>,
71 pub optimize: OptLevel,
72 pub debuginfo: DebugInfoLevel,
73 pub lint_opts: Vec<(String, lint::Level)>,
74 pub describe_lints: bool,
75 pub output_types: Vec<back::link::OutputType> ,
76 // This was mutable for rustpkg, which updates search paths based on the
77 // parsed code. It remains mutable in case its replacements wants to use
79 pub addl_lib_search_paths: RefCell<HashSet<Path>>,
80 pub maybe_sysroot: Option<Path>,
81 pub target_triple: String,
82 // User-specified cfg meta items. The compiler itself will add additional
83 // items to the crate config, and during parsing the entire crate config
84 // will be added to the crate AST node. This should not be used for
85 // anything except building the full crate config prior to parsing.
86 pub cfg: ast::CrateConfig,
90 pub no_analysis: bool,
91 pub debugging_opts: u64,
92 /// Whether to write dependency files. It's (enabled, optional filename).
93 pub write_dependency_info: (bool, Option<Path>),
94 /// Crate id-related things to maybe print. It's (crate_name, crate_file_name).
95 pub print_metas: (bool, bool),
96 pub cg: CodegenOptions,
97 pub color: ColorConfig,
98 pub externs: HashMap<String, Vec<String>>,
99 pub crate_name: Option<String>,
100 /// An optional name to use as the crate for std during std injection,
101 /// written `extern crate std = "name"`. Default to "std". Used by
102 /// out-of-tree drivers.
103 pub alt_std_name: Option<String>
106 /// Some reasonable defaults
107 pub fn basic_options() -> Options {
109 crate_types: Vec::new(),
112 debuginfo: NoDebugInfo,
113 lint_opts: Vec::new(),
114 describe_lints: false,
115 output_types: Vec::new(),
116 addl_lib_search_paths: RefCell::new(HashSet::new()),
118 target_triple: driver::host_triple().to_string(),
125 write_dependency_info: (false, None),
126 print_metas: (false, false),
127 cg: basic_codegen_options(),
129 externs: HashMap::new(),
135 // The type of entry function, so
136 // users can have their own entry
137 // functions that don't start a
139 #[deriving(PartialEq)]
140 pub enum EntryFnType {
146 #[deriving(PartialEq, PartialOrd, Clone, Ord, Eq, Hash)]
154 macro_rules! debugging_opts(
155 ([ $opt:ident ] $cnt:expr ) => (
156 pub static $opt: u64 = 1 << $cnt;
158 ([ $opt:ident, $($rest:ident),* ] $cnt:expr ) => (
159 pub static $opt: u64 = 1 << $cnt;
160 debugging_opts!([ $($rest),* ] $cnt + 1)
188 FLOWGRAPH_PRINT_LOANS,
189 FLOWGRAPH_PRINT_MOVES,
190 FLOWGRAPH_PRINT_ASSIGNS,
196 pub fn debugging_opts_map() -> Vec<(&'static str, &'static str, u64)> {
197 vec!(("verbose", "in general, enable more debug printouts", VERBOSE),
198 ("time-passes", "measure time of each rustc pass", TIME_PASSES),
199 ("count-llvm-insns", "count where LLVM \
200 instrs originate", COUNT_LLVM_INSNS),
201 ("time-llvm-passes", "measure time of each LLVM pass",
203 ("trans-stats", "gather trans statistics", TRANS_STATS),
204 ("asm-comments", "generate comments into the assembly (may change behavior)",
206 ("no-verify", "skip LLVM verification", NO_VERIFY),
207 ("borrowck-stats", "gather borrowck statistics", BORROWCK_STATS),
208 ("no-landing-pads", "omit landing pads for unwinding",
210 ("debug-llvm", "enable debug output from LLVM", DEBUG_LLVM),
211 ("show-span", "show spans for compiler debugging", SHOW_SPAN),
212 ("count-type-sizes", "count the sizes of aggregate types",
214 ("meta-stats", "gather metadata statistics", META_STATS),
215 ("no-opt", "do not optimize, even if -O is passed", NO_OPT),
216 ("print-link-args", "Print the arguments passed to the linker",
218 ("gc", "Garbage collect shared data (experimental)", GC),
219 ("print-llvm-passes",
220 "Prints the llvm optimization passes being run",
222 ("lto", "Perform LLVM link-time optimizations", LTO),
223 ("ast-json", "Print the AST as JSON and halt", AST_JSON),
224 ("ast-json-noexpand", "Print the pre-expansion AST as JSON and halt", AST_JSON_NOEXPAND),
225 ("ls", "List the symbols defined by a library crate", LS),
226 ("save-analysis", "Write syntax and type analysis information \
227 in addition to normal output", SAVE_ANALYSIS),
228 ("flowgraph-print-loans", "Include loan analysis data in \
229 --pretty flowgraph output", FLOWGRAPH_PRINT_LOANS),
230 ("flowgraph-print-moves", "Include move analysis data in \
231 --pretty flowgraph output", FLOWGRAPH_PRINT_MOVES),
232 ("flowgraph-print-assigns", "Include assignment analysis data in \
233 --pretty flowgraph output", FLOWGRAPH_PRINT_ASSIGNS),
234 ("flowgraph-print-all", "Include all dataflow analysis data in \
235 --pretty flowgraph output", FLOWGRAPH_PRINT_ALL))
238 /// Declare a macro that will define all CodegenOptions fields and parsers all
239 /// at once. The goal of this macro is to define an interface that can be
240 /// programmatically used by the option parser in order to initialize the struct
241 /// without hardcoding field names all over the place.
243 /// The goal is to invoke this macro once with the correct fields, and then this
244 /// macro generates all necessary code. The main gotcha of this macro is the
245 /// cgsetters module which is a bunch of generated code to parse an option into
246 /// its respective field in the struct. There are a few hand-written parsers for
247 /// parsing specific types of values in this module.
248 macro_rules! cgoptions(
249 ($($opt:ident : $t:ty = ($init:expr, $parse:ident, $desc:expr)),* ,) =>
252 pub struct CodegenOptions { $(pub $opt: $t),* }
254 pub fn basic_codegen_options() -> CodegenOptions {
255 CodegenOptions { $($opt: $init),* }
258 pub type CodegenSetter = fn(&mut CodegenOptions, v: Option<&str>) -> bool;
259 pub static CG_OPTIONS: &'static [(&'static str, CodegenSetter,
261 &[ $( (stringify!($opt), cgsetters::$opt, $desc) ),* ];
264 use super::CodegenOptions;
267 pub fn $opt(cg: &mut CodegenOptions, v: Option<&str>) -> bool {
268 $parse(&mut cg.$opt, v)
272 fn parse_bool(slot: &mut bool, v: Option<&str>) -> bool {
275 None => { *slot = true; true }
279 fn parse_opt_string(slot: &mut Option<String>, v: Option<&str>) -> bool {
281 Some(s) => { *slot = Some(s.to_string()); true },
286 fn parse_string(slot: &mut String, v: Option<&str>) -> bool {
288 Some(s) => { *slot = s.to_string(); true },
293 fn parse_list(slot: &mut Vec<String>, v: Option<&str>)
298 slot.push(s.to_string());
310 ar: Option<String> = (None, parse_opt_string,
311 "tool to assemble archives with"),
312 linker: Option<String> = (None, parse_opt_string,
313 "system linker to link outputs with"),
314 link_args: Vec<String> = (Vec::new(), parse_list,
315 "extra arguments to pass to the linker (space separated)"),
316 target_cpu: String = ("generic".to_string(), parse_string,
317 "select target processor (llc -mcpu=help for details)"),
318 target_feature: String = ("".to_string(), parse_string,
319 "target specific attributes (llc -mattr=help for details)"),
320 passes: Vec<String> = (Vec::new(), parse_list,
321 "a list of extra LLVM passes to run (space separated)"),
322 llvm_args: Vec<String> = (Vec::new(), parse_list,
323 "a list of arguments to pass to llvm (space separated)"),
324 save_temps: bool = (false, parse_bool,
325 "save all temporary output files during compilation"),
326 rpath: bool = (false, parse_bool,
327 "set rpath values in libs/exes"),
328 no_prepopulate_passes: bool = (false, parse_bool,
329 "don't pre-populate the pass manager with a list of passes"),
330 no_vectorize_loops: bool = (false, parse_bool,
331 "don't run the loop vectorization optimization passes"),
332 no_vectorize_slp: bool = (false, parse_bool,
333 "don't run LLVM's SLP vectorization pass"),
334 soft_float: bool = (false, parse_bool,
335 "generate software floating point library calls"),
336 prefer_dynamic: bool = (false, parse_bool,
337 "prefer dynamic linking to static linking"),
338 no_integrated_as: bool = (false, parse_bool,
339 "use an external assembler rather than LLVM's integrated one"),
340 no_redzone: bool = (false, parse_bool,
341 "disable the use of the redzone"),
342 relocation_model: String = ("pic".to_string(), parse_string,
343 "choose the relocation model to use (llc -relocation-model for details)"),
344 code_model: String = ("default".to_string(), parse_string,
345 "choose the code model to use (llc -code-model for details)"),
346 metadata: Vec<String> = (Vec::new(), parse_list,
347 "metadata to mangle symbol names with"),
348 extra_filename: String = ("".to_string(), parse_string,
349 "extra data to put in each output filename"),
352 pub fn build_codegen_options(matches: &getopts::Matches) -> CodegenOptions
354 let mut cg = basic_codegen_options();
355 for option in matches.opt_strs("C").move_iter() {
356 let mut iter = option.as_slice().splitn('=', 1);
357 let key = iter.next().unwrap();
358 let value = iter.next();
359 let option_to_lookup = key.replace("-", "_");
360 let mut found = false;
361 for &(candidate, setter, _) in CG_OPTIONS.iter() {
362 if option_to_lookup.as_slice() != candidate { continue }
363 if !setter(&mut cg, value) {
366 early_error(format!("codegen option `{}` takes no \
367 value", key).as_slice())
370 early_error(format!("codegen option `{0}` requires \
371 a value (-C {0}=<value>)",
380 early_error(format!("unknown codegen option: `{}`",
387 pub fn default_lib_output() -> CrateType {
391 pub fn default_configuration(sess: &Session) -> ast::CrateConfig {
392 let tos = match sess.targ_cfg.os {
393 abi::OsWin32 => InternedString::new("win32"),
394 abi::OsMacos => InternedString::new("macos"),
395 abi::OsLinux => InternedString::new("linux"),
396 abi::OsAndroid => InternedString::new("android"),
397 abi::OsFreebsd => InternedString::new("freebsd"),
398 abi::OsiOS => InternedString::new("ios"),
401 // ARM is bi-endian, however using NDK seems to default
402 // to little-endian unless a flag is provided.
403 let (end,arch,wordsz) = match sess.targ_cfg.arch {
404 abi::X86 => ("little", "x86", "32"),
405 abi::X86_64 => ("little", "x86_64", "64"),
406 abi::Arm => ("little", "arm", "32"),
407 abi::Mips => ("big", "mips", "32"),
408 abi::Mipsel => ("little", "mipsel", "32")
411 let fam = match sess.targ_cfg.os {
412 abi::OsWin32 => InternedString::new("windows"),
413 _ => InternedString::new("unix")
416 let mk = attr::mk_name_value_item_str;
417 return vec!(// Target bindings.
418 attr::mk_word_item(fam.clone()),
419 mk(InternedString::new("target_os"), tos),
420 mk(InternedString::new("target_family"), fam),
421 mk(InternedString::new("target_arch"), InternedString::new(arch)),
422 mk(InternedString::new("target_endian"), InternedString::new(end)),
423 mk(InternedString::new("target_word_size"),
424 InternedString::new(wordsz))
428 pub fn append_configuration(cfg: &mut ast::CrateConfig,
429 name: InternedString) {
430 if !cfg.iter().any(|mi| mi.name() == name) {
431 cfg.push(attr::mk_word_item(name))
435 pub fn build_configuration(sess: &Session) -> ast::CrateConfig {
436 // Combine the configuration requested by the session (command line) with
437 // some default and generated configuration items
438 let default_cfg = default_configuration(sess);
439 let mut user_cfg = sess.opts.cfg.clone();
440 // If the user wants a test runner, then add the test cfg
442 append_configuration(&mut user_cfg, InternedString::new("test"))
444 user_cfg.move_iter().collect::<Vec<_>>().append(default_cfg.as_slice())
447 pub fn get_os(triple: &str) -> Option<abi::Os> {
448 for &(name, os) in os_names.iter() {
449 if triple.contains(name) { return Some(os) }
453 static os_names : &'static [(&'static str, abi::Os)] = &[
454 ("mingw32", abi::OsWin32),
455 ("win32", abi::OsWin32),
456 ("darwin", abi::OsMacos),
457 ("android", abi::OsAndroid),
458 ("linux", abi::OsLinux),
459 ("freebsd", abi::OsFreebsd),
460 ("ios", abi::OsiOS)];
462 pub fn get_arch(triple: &str) -> Option<abi::Architecture> {
463 for &(arch, abi) in architecture_abis.iter() {
464 if triple.contains(arch) { return Some(abi) }
468 static architecture_abis : &'static [(&'static str, abi::Architecture)] = &[
475 ("x86_64", abi::X86_64),
478 ("xscale", abi::Arm),
481 ("mipsel", abi::Mipsel),
482 ("mips", abi::Mips)];
484 pub fn build_target_config(sopts: &Options) -> Config {
485 let os = match get_os(sopts.target_triple.as_slice()) {
487 None => early_error("unknown operating system")
489 let arch = match get_arch(sopts.target_triple.as_slice()) {
492 early_error(format!("unknown architecture: {}",
493 sopts.target_triple.as_slice()).as_slice())
496 let (int_type, uint_type) = match arch {
497 abi::X86 => (ast::TyI32, ast::TyU32),
498 abi::X86_64 => (ast::TyI64, ast::TyU64),
499 abi::Arm => (ast::TyI32, ast::TyU32),
500 abi::Mips => (ast::TyI32, ast::TyU32),
501 abi::Mipsel => (ast::TyI32, ast::TyU32)
503 let target_triple = sopts.target_triple.clone();
504 let target_strs = match arch {
505 abi::X86 => x86::get_target_strs(target_triple, os),
506 abi::X86_64 => x86_64::get_target_strs(target_triple, os),
507 abi::Arm => arm::get_target_strs(target_triple, os),
508 abi::Mips => mips::get_target_strs(target_triple, os),
509 abi::Mipsel => mipsel::get_target_strs(target_triple, os)
514 target_strs: target_strs,
516 uint_type: uint_type,
520 // rustc command line options
521 pub fn optgroups() -> Vec<getopts::OptGroup> {
523 optflag("h", "help", "Display this message"),
524 optmulti("", "cfg", "Configure the compilation environment", "SPEC"),
525 optmulti("L", "", "Add a directory to the library search path", "PATH"),
526 optmulti("", "crate-type", "Comma separated list of types of crates
527 for the compiler to emit",
528 "[bin|lib|rlib|dylib|staticlib]"),
529 optmulti("", "emit", "Comma separated list of types of output for the compiler to emit",
530 "[asm|bc|ir|obj|link]"),
531 optopt("", "crate-name", "Specify the name of the crate being built",
533 optflag("", "print-crate-name", "Output the crate name and exit"),
534 optflag("", "print-file-name", "Output the file(s) that would be written if compilation \
535 continued and exit"),
536 optflag("", "crate-file-name", "deprecated in favor of --print-file-name"),
537 optflag("g", "", "Equivalent to --debuginfo=2"),
538 optopt("", "debuginfo", "Emit DWARF debug info to the objects created:
540 1 = line-tables only (for stacktraces and breakpoints),
541 2 = full debug info with variable and type information (same as -g)", "LEVEL"),
542 optflag("", "no-trans", "Run all passes except translation; no output"),
543 optflag("", "no-analysis",
544 "Parse and expand the source, but run no analysis and produce no output"),
545 optflag("O", "", "Equivalent to --opt-level=2"),
546 optopt("o", "", "Write output to <filename>", "FILENAME"),
547 optopt("", "opt-level", "Optimize with possible levels 0-3", "LEVEL"),
548 optopt( "", "out-dir", "Write output to compiler-chosen filename in <dir>", "DIR"),
549 optflag("", "parse-only", "Parse only; do not compile, assemble, or link"),
550 optopt("", "explain", "Provide a detailed explanation of an error message", "OPT"),
551 optflagopt("", "pretty",
552 "Pretty-print the input instead of compiling;
553 valid types are: `normal` (un-annotated source),
554 `expanded` (crates expanded),
555 `typed` (crates expanded, with type annotations),
556 `expanded,identified` (fully parenthesized, AST nodes with IDs), or
557 `flowgraph=<nodeid>` (graphviz formatted flowgraph for node)",
559 optflagopt("", "dep-info",
560 "Output dependency info to <filename> after compiling, \
561 in a format suitable for use by Makefiles", "FILENAME"),
562 optopt("", "sysroot", "Override the system root", "PATH"),
563 optflag("", "test", "Build a test harness"),
564 optopt("", "target", "Target triple cpu-manufacturer-kernel[-os]
565 to compile for (see chapter 3.4 of http://www.sourceware.org/autobook/
566 for details)", "TRIPLE"),
567 optmulti("W", "warn", "Set lint warnings", "OPT"),
568 optmulti("A", "allow", "Set lint allowed", "OPT"),
569 optmulti("D", "deny", "Set lint denied", "OPT"),
570 optmulti("F", "forbid", "Set lint forbidden", "OPT"),
571 optmulti("C", "codegen", "Set a codegen option", "OPT[=VALUE]"),
572 optmulti("Z", "", "Set internal debugging options", "FLAG"),
573 optflagopt("v", "version", "Print version info and exit", "verbose"),
574 optopt("", "color", "Configure coloring of output:
575 auto = colorize, if output goes to a tty (default);
576 always = always colorize output;
577 never = never colorize output", "auto|always|never"),
578 optmulti("", "extern", "Specify where an external rust library is located",
584 // Convert strings provided as --cfg [cfgspec] into a crate_cfg
585 fn parse_cfgspecs(cfgspecs: Vec<String> ) -> ast::CrateConfig {
586 cfgspecs.move_iter().map(|s| {
587 parse::parse_meta_from_source_str("cfgspec".to_string(),
590 &parse::new_parse_sess())
591 }).collect::<ast::CrateConfig>()
594 pub fn build_session_options(matches: &getopts::Matches) -> Options {
596 let unparsed_crate_types = matches.opt_strs("crate-type");
597 let crate_types = parse_crate_types_from_list(unparsed_crate_types)
598 .unwrap_or_else(|e| early_error(e.as_slice()));
600 let parse_only = matches.opt_present("parse-only");
601 let no_trans = matches.opt_present("no-trans");
602 let no_analysis = matches.opt_present("no-analysis");
604 let mut lint_opts = vec!();
605 let mut describe_lints = false;
607 for &level in [lint::Allow, lint::Warn, lint::Deny, lint::Forbid].iter() {
608 for lint_name in matches.opt_strs(level.as_str()).move_iter() {
609 if lint_name.as_slice() == "help" {
610 describe_lints = true;
612 lint_opts.push((lint_name.replace("-", "_").into_string(), level));
617 let mut debugging_opts = 0;
618 let debug_flags = matches.opt_strs("Z");
619 let debug_map = debugging_opts_map();
620 for debug_flag in debug_flags.iter() {
621 let mut this_bit = 0;
622 for tuple in debug_map.iter() {
623 let (name, bit) = match *tuple { (ref a, _, b) => (a, b) };
624 if *name == debug_flag.as_slice() {
630 early_error(format!("unknown debug flag: {}",
631 *debug_flag).as_slice())
633 debugging_opts |= this_bit;
636 if debugging_opts & DEBUG_LLVM != 0 {
637 unsafe { llvm::LLVMSetDebug(1); }
640 let mut output_types = Vec::new();
641 if !parse_only && !no_trans {
642 let unparsed_output_types = matches.opt_strs("emit");
643 for unparsed_output_type in unparsed_output_types.iter() {
644 for part in unparsed_output_type.as_slice().split(',') {
645 let output_type = match part.as_slice() {
646 "asm" => link::OutputTypeAssembly,
647 "ir" => link::OutputTypeLlvmAssembly,
648 "bc" => link::OutputTypeBitcode,
649 "obj" => link::OutputTypeObject,
650 "link" => link::OutputTypeExe,
652 early_error(format!("unknown emission type: `{}`",
656 output_types.push(output_type)
660 output_types.as_mut_slice().sort();
661 output_types.dedup();
662 if output_types.len() == 0 {
663 output_types.push(link::OutputTypeExe);
666 let sysroot_opt = matches.opt_str("sysroot").map(|m| Path::new(m));
667 let target = matches.opt_str("target").unwrap_or(
668 driver::host_triple().to_string());
670 if (debugging_opts & NO_OPT) != 0 {
672 } else if matches.opt_present("O") {
673 if matches.opt_present("opt-level") {
674 early_error("-O and --opt-level both provided");
677 } else if matches.opt_present("opt-level") {
678 match matches.opt_str("opt-level").as_ref().map(|s| s.as_slice()) {
682 Some("2") => Default,
683 Some("3") => Aggressive,
685 early_error(format!("optimization level needs to be \
686 between 0-3 (instead was `{}`)",
694 let gc = debugging_opts & GC != 0;
695 let debuginfo = if matches.opt_present("g") {
696 if matches.opt_present("debuginfo") {
697 early_error("-g and --debuginfo both provided");
700 } else if matches.opt_present("debuginfo") {
701 match matches.opt_str("debuginfo").as_ref().map(|s| s.as_slice()) {
702 Some("0") => NoDebugInfo,
703 Some("1") => LimitedDebugInfo,
705 Some("2") => FullDebugInfo,
707 early_error(format!("optimization level needs to be between \
708 0-3 (instead was `{}`)",
716 let addl_lib_search_paths = matches.opt_strs("L").iter().map(|s| {
717 Path::new(s.as_slice())
720 let cfg = parse_cfgspecs(matches.opt_strs("cfg"));
721 let test = matches.opt_present("test");
722 let write_dependency_info = (matches.opt_present("dep-info"),
723 matches.opt_str("dep-info")
724 .map(|p| Path::new(p)));
726 let print_metas = (matches.opt_present("print-crate-name"),
727 matches.opt_present("print-file-name") ||
728 matches.opt_present("crate-file-name"));
729 if matches.opt_present("crate-file-name") {
730 early_warn("the --crate-file-name argument has been renamed to \
733 let cg = build_codegen_options(matches);
735 let color = match matches.opt_str("color").as_ref().map(|s| s.as_slice()) {
736 Some("auto") => Auto,
737 Some("always") => Always,
738 Some("never") => Never,
743 early_error(format!("argument for --color must be auto, always \
744 or never (instead was `{}`)",
749 let mut externs = HashMap::new();
750 for arg in matches.opt_strs("extern").iter() {
751 let mut parts = arg.as_slice().splitn('=', 1);
752 let name = match parts.next() {
754 None => early_error("--extern value must not be empty"),
756 let location = match parts.next() {
758 None => early_error("--extern value must be of the format `foo=bar`"),
760 let locs = externs.find_or_insert(name.to_string(), Vec::new());
761 locs.push(location.to_string());
764 let crate_name = matches.opt_str("crate-name");
767 crate_types: crate_types,
770 debuginfo: debuginfo,
771 lint_opts: lint_opts,
772 describe_lints: describe_lints,
773 output_types: output_types,
774 addl_lib_search_paths: RefCell::new(addl_lib_search_paths),
775 maybe_sysroot: sysroot_opt,
776 target_triple: target,
779 parse_only: parse_only,
781 no_analysis: no_analysis,
782 debugging_opts: debugging_opts,
783 write_dependency_info: write_dependency_info,
784 print_metas: print_metas,
788 crate_name: crate_name,
793 pub fn parse_crate_types_from_list(list_list: Vec<String>) -> Result<Vec<CrateType>, String> {
795 let mut crate_types: Vec<CrateType> = Vec::new();
796 for unparsed_crate_type in list_list.iter() {
797 for part in unparsed_crate_type.as_slice().split(',') {
798 let new_part = match part {
799 "lib" => default_lib_output(),
800 "rlib" => CrateTypeRlib,
801 "staticlib" => CrateTypeStaticlib,
802 "dylib" => CrateTypeDylib,
803 "bin" => CrateTypeExecutable,
805 return Err(format!("unknown crate type: `{}`",
809 crate_types.push(new_part)
813 return Ok(crate_types);
816 impl fmt::Show for CrateType {
817 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
819 CrateTypeExecutable => "bin".fmt(f),
820 CrateTypeDylib => "dylib".fmt(f),
821 CrateTypeRlib => "rlib".fmt(f),
822 CrateTypeStaticlib => "staticlib".fmt(f)
830 use driver::config::{build_configuration, optgroups, build_session_options};
831 use driver::session::build_session;
833 use getopts::getopts;
835 use syntax::attr::AttrMetaMethods;
836 use syntax::diagnostics;
838 // When the user supplies --test we should implicitly supply --cfg test
840 fn test_switch_implies_cfg_test() {
842 &match getopts(["--test".to_string()], optgroups().as_slice()) {
844 Err(f) => fail!("test_switch_implies_cfg_test: {}", f)
846 let registry = diagnostics::registry::Registry::new([]);
847 let sessopts = build_session_options(matches);
848 let sess = build_session(sessopts, None, registry);
849 let cfg = build_configuration(&sess);
850 assert!((attr::contains_name(cfg.as_slice(), "test")));
853 // When the user supplies --test and --cfg test, don't implicitly add
854 // another --cfg test
856 fn test_switch_implies_cfg_test_unless_cfg_test() {
858 &match getopts(["--test".to_string(), "--cfg=test".to_string()],
859 optgroups().as_slice()) {
862 fail!("test_switch_implies_cfg_test_unless_cfg_test: {}", f)
865 let registry = diagnostics::registry::Registry::new([]);
866 let sessopts = build_session_options(matches);
867 let sess = build_session(sessopts, None, registry);
868 let cfg = build_configuration(&sess);
869 let mut test_items = cfg.iter().filter(|m| m.name().equiv(&("test")));
870 assert!(test_items.next().is_some());
871 assert!(test_items.next().is_none());