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 pub use self::EntryFnType::*;
15 pub use self::CrateType::*;
16 pub use self::Passes::*;
17 pub use self::DebugInfoLevel::*;
19 use session::{early_error, early_warn, Session};
20 use session::search_paths::SearchPaths;
22 use ich::StableHashingContext;
23 use rustc_back::{LinkerFlavor, PanicStrategy, RelroLevel};
24 use rustc_back::target::Target;
25 use rustc_data_structures::stable_hasher::ToStableHashKey;
29 use syntax::ast::{self, IntTy, UintTy};
30 use syntax::codemap::{FilePathMapping, FileName};
31 use syntax::parse::token;
33 use syntax::symbol::Symbol;
34 use syntax::feature_gate::UnstableFeatures;
36 use errors::{ColorConfig, FatalError, Handler};
39 use std::collections::{BTreeMap, BTreeSet};
40 use std::collections::btree_map::Iter as BTreeMapIter;
41 use std::collections::btree_map::Keys as BTreeMapKeysIter;
42 use std::collections::btree_map::Values as BTreeMapValuesIter;
45 use std::hash::Hasher;
46 use std::collections::hash_map::DefaultHasher;
47 use std::collections::HashSet;
48 use std::iter::FromIterator;
49 use std::path::PathBuf;
57 #[derive(Clone, Hash, Debug)]
65 #[derive(Clone, Copy, PartialEq, Hash)]
75 #[derive(Clone, Copy, PartialEq, Hash)]
76 pub enum DebugInfoLevel {
82 #[derive(Clone, Copy, PartialEq, Eq, Hash, Debug, PartialOrd, Ord,
83 RustcEncodable, RustcDecodable)]
95 impl_stable_hash_for!(enum self::OutputType {
106 impl<'tcx> ToStableHashKey<StableHashingContext<'tcx>> for OutputType {
107 type KeyType = OutputType;
109 fn to_stable_hash_key(&self, _: &StableHashingContext<'tcx>) -> Self::KeyType {
115 fn is_compatible_with_codegen_units_and_single_output_file(&self) -> bool {
118 OutputType::DepInfo => true,
119 OutputType::Bitcode |
120 OutputType::Assembly |
121 OutputType::LlvmAssembly |
124 OutputType::Metadata => false,
128 fn shorthand(&self) -> &'static str {
130 OutputType::Bitcode => "llvm-bc",
131 OutputType::Assembly => "asm",
132 OutputType::LlvmAssembly => "llvm-ir",
133 OutputType::Mir => "mir",
134 OutputType::Object => "obj",
135 OutputType::Metadata => "metadata",
136 OutputType::Exe => "link",
137 OutputType::DepInfo => "dep-info",
141 fn from_shorthand(shorthand: &str) -> Option<Self> {
142 Some(match shorthand {
143 "asm" => OutputType::Assembly,
144 "llvm-ir" => OutputType::LlvmAssembly,
145 "mir" => OutputType::Mir,
146 "llvm-bc" => OutputType::Bitcode,
147 "obj" => OutputType::Object,
148 "metadata" => OutputType::Metadata,
149 "link" => OutputType::Exe,
150 "dep-info" => OutputType::DepInfo,
155 fn shorthands_display() -> String {
157 "`{}`, `{}`, `{}`, `{}`, `{}`, `{}`, `{}`, `{}`",
158 OutputType::Bitcode.shorthand(),
159 OutputType::Assembly.shorthand(),
160 OutputType::LlvmAssembly.shorthand(),
161 OutputType::Mir.shorthand(),
162 OutputType::Object.shorthand(),
163 OutputType::Metadata.shorthand(),
164 OutputType::Exe.shorthand(),
165 OutputType::DepInfo.shorthand(),
169 pub fn extension(&self) -> &'static str {
171 OutputType::Bitcode => "bc",
172 OutputType::Assembly => "s",
173 OutputType::LlvmAssembly => "ll",
174 OutputType::Mir => "mir",
175 OutputType::Object => "o",
176 OutputType::Metadata => "rmeta",
177 OutputType::DepInfo => "d",
178 OutputType::Exe => "",
183 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
184 pub enum ErrorOutputType {
185 HumanReadable(ColorConfig),
190 impl Default for ErrorOutputType {
191 fn default() -> ErrorOutputType {
192 ErrorOutputType::HumanReadable(ColorConfig::Auto)
196 // Use tree-based collections to cheaply get a deterministic Hash implementation.
197 // DO NOT switch BTreeMap out for an unsorted container type! That would break
198 // dependency tracking for commandline arguments.
199 #[derive(Clone, Hash)]
200 pub struct OutputTypes(BTreeMap<OutputType, Option<PathBuf>>);
202 impl_stable_hash_for!(tuple_struct self::OutputTypes {
207 pub fn new(entries: &[(OutputType, Option<PathBuf>)]) -> OutputTypes {
208 OutputTypes(BTreeMap::from_iter(entries.iter()
209 .map(|&(k, ref v)| (k, v.clone()))))
212 pub fn get(&self, key: &OutputType) -> Option<&Option<PathBuf>> {
216 pub fn contains_key(&self, key: &OutputType) -> bool {
217 self.0.contains_key(key)
220 pub fn keys<'a>(&'a self) -> BTreeMapKeysIter<'a, OutputType, Option<PathBuf>> {
224 pub fn values<'a>(&'a self) -> BTreeMapValuesIter<'a, OutputType, Option<PathBuf>> {
228 // True if any of the output types require codegen or linking.
229 pub fn should_trans(&self) -> bool {
230 self.0.keys().any(|k| match *k {
231 OutputType::Bitcode |
232 OutputType::Assembly |
233 OutputType::LlvmAssembly |
236 OutputType::Exe => true,
237 OutputType::Metadata |
238 OutputType::DepInfo => false,
244 // Use tree-based collections to cheaply get a deterministic Hash implementation.
245 // DO NOT switch BTreeMap or BTreeSet out for an unsorted container type! That
246 // would break dependency tracking for commandline arguments.
247 #[derive(Clone, Hash)]
248 pub struct Externs(BTreeMap<String, BTreeSet<String>>);
251 pub fn new(data: BTreeMap<String, BTreeSet<String>>) -> Externs {
255 pub fn get(&self, key: &str) -> Option<&BTreeSet<String>> {
259 pub fn iter<'a>(&'a self) -> BTreeMapIter<'a, String, BTreeSet<String>> {
264 macro_rules! hash_option {
265 ($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, [UNTRACKED]) => ({});
266 ($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, [TRACKED]) => ({
267 if $sub_hashes.insert(stringify!($opt_name),
268 $opt_expr as &dep_tracking::DepTrackingHash).is_some() {
269 bug!("Duplicate key in CLI DepTrackingHash: {}", stringify!($opt_name))
275 [UNTRACKED_WITH_WARNING $warn_val:expr, $warn_text:expr, $error_format:expr]) => ({
276 if *$opt_expr == $warn_val {
277 early_warn($error_format, $warn_text)
282 macro_rules! top_level_options {
283 (pub struct Options { $(
284 $opt:ident : $t:ty [$dep_tracking_marker:ident $($warn_val:expr, $warn_text:expr)*],
292 pub fn dep_tracking_hash(&self) -> u64 {
293 let mut sub_hashes = BTreeMap::new();
298 [$dep_tracking_marker $($warn_val,
300 self.error_format)*]);
302 let mut hasher = DefaultHasher::new();
303 dep_tracking::stable_hash(sub_hashes,
312 // The top-level commandline options struct
314 // For each option, one has to specify how it behaves with regard to the
315 // dependency tracking system of incremental compilation. This is done via the
316 // square-bracketed directive after the field type. The options are:
319 // A change in the given field will cause the compiler to completely clear the
320 // incremental compilation cache before proceeding.
323 // Incremental compilation is not influenced by this option.
325 // [UNTRACKED_WITH_WARNING(val, warning)]
326 // The option is incompatible with incremental compilation in some way. If it
327 // has the value `val`, the string `warning` is emitted as a warning.
329 // If you add a new option to this struct or one of the sub-structs like
330 // CodegenOptions, think about how it influences incremental compilation. If in
331 // doubt, specify [TRACKED], which is always "correct" but might lead to
332 // unnecessary re-compilation.
335 // The crate config requested for the session, which may be combined
336 // with additional crate configurations during the compile process
337 crate_types: Vec<CrateType> [TRACKED],
338 optimize: OptLevel [TRACKED],
339 // Include the debug_assertions flag into dependency tracking, since it
340 // can influence whether overflow checks are done or not.
341 debug_assertions: bool [TRACKED],
342 debuginfo: DebugInfoLevel [TRACKED],
343 lint_opts: Vec<(String, lint::Level)> [TRACKED],
344 lint_cap: Option<lint::Level> [TRACKED],
345 describe_lints: bool [UNTRACKED],
346 output_types: OutputTypes [TRACKED],
347 // FIXME(mw): We track this for now but it actually doesn't make too
348 // much sense: The search path can stay the same while the
349 // things discovered there might have changed on disk.
350 search_paths: SearchPaths [TRACKED],
351 libs: Vec<(String, Option<String>, Option<cstore::NativeLibraryKind>)> [TRACKED],
352 maybe_sysroot: Option<PathBuf> [TRACKED],
354 target_triple: String [TRACKED],
356 test: bool [TRACKED],
357 error_format: ErrorOutputType [UNTRACKED],
359 // if Some, enable incremental compilation, using the given
360 // directory to store intermediate results
361 incremental: Option<PathBuf> [UNTRACKED],
363 debugging_opts: DebuggingOptions [TRACKED],
364 prints: Vec<PrintRequest> [UNTRACKED],
365 // Determines which borrow checker(s) to run. This is the parsed, sanitized
366 // version of `debugging_opts.borrowck`, which is just a plain string.
367 borrowck_mode: BorrowckMode [UNTRACKED],
368 cg: CodegenOptions [TRACKED],
369 // FIXME(mw): We track this for now but it actually doesn't make too
370 // much sense: The value of this option can stay the same
371 // while the files they refer to might have changed on disk.
372 externs: Externs [TRACKED],
373 crate_name: Option<String> [TRACKED],
374 // An optional name to use as the crate for std during std injection,
375 // written `extern crate std = "name"`. Default to "std". Used by
376 // out-of-tree drivers.
377 alt_std_name: Option<String> [TRACKED],
378 // Indicates how the compiler should treat unstable features
379 unstable_features: UnstableFeatures [TRACKED],
381 // Indicates whether this run of the compiler is actually rustdoc. This
382 // is currently just a hack and will be removed eventually, so please
383 // try to not rely on this too much.
384 actually_rustdoc: bool [TRACKED],
386 // Specifications of codegen units / ThinLTO which are forced as a
387 // result of parsing command line options. These are not necessarily
388 // what rustc was invoked with, but massaged a bit to agree with
389 // commands like `--emit llvm-ir` which they're often incompatible with
390 // if we otherwise use the defaults of rustc.
391 cli_forced_codegen_units: Option<usize> [UNTRACKED],
392 cli_forced_thinlto: Option<bool> [UNTRACKED],
396 #[derive(Copy, Clone, PartialEq, Eq, Debug)]
397 pub enum PrintRequest {
412 #[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
413 pub enum BorrowckMode {
420 /// Should we emit the AST-based borrow checker errors?
421 pub fn use_ast(self) -> bool {
423 BorrowckMode::Ast => true,
424 BorrowckMode::Compare => true,
425 BorrowckMode::Mir => false,
428 /// Should we emit the MIR-based borrow checker errors?
429 pub fn use_mir(self) -> bool {
431 BorrowckMode::Ast => false,
432 BorrowckMode::Compare => true,
433 BorrowckMode::Mir => true,
439 /// Load source from file
442 /// String that is shown in place of a filename
444 /// Anonymous source string
450 pub fn filestem(&self) -> String {
452 Input::File(ref ifile) => ifile.file_stem().unwrap()
453 .to_str().unwrap().to_string(),
454 Input::Str { .. } => "rust_out".to_string(),
460 pub struct OutputFilenames {
461 pub out_directory: PathBuf,
462 pub out_filestem: String,
463 pub single_output_file: Option<PathBuf>,
465 pub outputs: OutputTypes,
468 impl_stable_hash_for!(struct self::OutputFilenames {
476 pub const RUST_CGU_EXT: &str = "rcgu";
478 impl OutputFilenames {
479 pub fn path(&self, flavor: OutputType) -> PathBuf {
480 self.outputs.get(&flavor).and_then(|p| p.to_owned())
481 .or_else(|| self.single_output_file.clone())
482 .unwrap_or_else(|| self.temp_path(flavor, None))
485 /// Get the path where a compilation artifact of the given type for the
486 /// given codegen unit should be placed on disk. If codegen_unit_name is
487 /// None, a path distinct from those of any codegen unit will be generated.
488 pub fn temp_path(&self,
490 codegen_unit_name: Option<&str>)
492 let extension = flavor.extension();
493 self.temp_path_ext(extension, codegen_unit_name)
496 /// Like temp_path, but also supports things where there is no corresponding
497 /// OutputType, like no-opt-bitcode or lto-bitcode.
498 pub fn temp_path_ext(&self,
500 codegen_unit_name: Option<&str>)
502 let base = self.out_directory.join(&self.filestem());
504 let mut extension = String::new();
506 if let Some(codegen_unit_name) = codegen_unit_name {
507 extension.push_str(codegen_unit_name);
511 if !extension.is_empty() {
512 extension.push_str(".");
513 extension.push_str(RUST_CGU_EXT);
514 extension.push_str(".");
517 extension.push_str(ext);
520 let path = base.with_extension(&extension[..]);
524 pub fn with_extension(&self, extension: &str) -> PathBuf {
525 self.out_directory.join(&self.filestem()).with_extension(extension)
528 pub fn filestem(&self) -> String {
529 format!("{}{}", self.out_filestem, self.extra)
532 pub fn contains_path(&self, input_path: &PathBuf) -> bool {
533 let input_path = input_path.canonicalize().ok();
534 if input_path.is_none() {
537 match self.single_output_file {
538 Some(ref output_path) => output_path.canonicalize().ok() == input_path,
540 for k in self.outputs.keys() {
541 let output_path = self.path(k.to_owned());
542 if output_path.canonicalize().ok() == input_path {
552 pub fn host_triple() -> &'static str {
553 // Get the host triple out of the build environment. This ensures that our
554 // idea of the host triple is the same as for the set of libraries we've
555 // actually built. We can't just take LLVM's host triple because they
556 // normalize all ix86 architectures to i386.
558 // Instead of grabbing the host triple (for the current host), we grab (at
559 // compile time) the target triple that this rustc is built with and
560 // calling that (at runtime) the host triple.
561 (option_env!("CFG_COMPILER_HOST_TRIPLE")).
562 expect("CFG_COMPILER_HOST_TRIPLE")
565 /// Some reasonable defaults
566 pub fn basic_options() -> Options {
568 crate_types: Vec::new(),
569 optimize: OptLevel::No,
570 debuginfo: NoDebugInfo,
571 lint_opts: Vec::new(),
573 describe_lints: false,
574 output_types: OutputTypes(BTreeMap::new()),
575 search_paths: SearchPaths::new(),
577 target_triple: host_triple().to_string(),
580 debugging_opts: basic_debugging_options(),
582 borrowck_mode: BorrowckMode::Ast,
583 cg: basic_codegen_options(),
584 error_format: ErrorOutputType::default(),
585 externs: Externs(BTreeMap::new()),
589 unstable_features: UnstableFeatures::Disallow,
590 debug_assertions: true,
591 actually_rustdoc: false,
592 cli_forced_codegen_units: None,
593 cli_forced_thinlto: None,
598 /// True if there is a reason to build the dep graph.
599 pub fn build_dep_graph(&self) -> bool {
600 self.incremental.is_some() ||
601 self.debugging_opts.dump_dep_graph ||
602 self.debugging_opts.query_dep_graph
606 pub fn enable_dep_node_debug_strs(&self) -> bool {
607 cfg!(debug_assertions) &&
608 (self.debugging_opts.query_dep_graph || self.debugging_opts.incremental_info)
611 pub fn file_path_mapping(&self) -> FilePathMapping {
612 FilePathMapping::new(
613 self.debugging_opts.remap_path_prefix_from.iter().zip(
614 self.debugging_opts.remap_path_prefix_to.iter()
615 ).map(|(src, dst)| (src.clone(), dst.clone())).collect()
619 /// True if there will be an output file generated
620 pub fn will_create_output_file(&self) -> bool {
621 !self.debugging_opts.parse_only && // The file is just being parsed
622 !self.debugging_opts.ls // The file is just being queried
626 // The type of entry function, so
627 // users can have their own entry
628 // functions that don't start a
630 #[derive(Copy, Clone, PartialEq)]
631 pub enum EntryFnType {
637 #[derive(Copy, PartialEq, PartialOrd, Clone, Ord, Eq, Hash, Debug)]
647 #[derive(Clone, Hash)]
649 SomePasses(Vec<String>),
654 pub fn is_empty(&self) -> bool {
656 SomePasses(ref v) => v.is_empty(),
662 /// Declare a macro that will define all CodegenOptions/DebuggingOptions fields and parsers all
663 /// at once. The goal of this macro is to define an interface that can be
664 /// programmatically used by the option parser in order to initialize the struct
665 /// without hardcoding field names all over the place.
667 /// The goal is to invoke this macro once with the correct fields, and then this
668 /// macro generates all necessary code. The main gotcha of this macro is the
669 /// cgsetters module which is a bunch of generated code to parse an option into
670 /// its respective field in the struct. There are a few hand-written parsers for
671 /// parsing specific types of values in this module.
672 macro_rules! options {
673 ($struct_name:ident, $setter_name:ident, $defaultfn:ident,
674 $buildfn:ident, $prefix:expr, $outputname:expr,
675 $stat:ident, $mod_desc:ident, $mod_set:ident,
676 $($opt:ident : $t:ty = (
679 [$dep_tracking_marker:ident $(($dep_warn_val:expr, $dep_warn_text:expr))*],
684 pub struct $struct_name { $(pub $opt: $t),* }
686 pub fn $defaultfn() -> $struct_name {
687 $struct_name { $($opt: $init),* }
690 pub fn $buildfn(matches: &getopts::Matches, error_format: ErrorOutputType) -> $struct_name
692 let mut op = $defaultfn();
693 for option in matches.opt_strs($prefix) {
694 let mut iter = option.splitn(2, '=');
695 let key = iter.next().unwrap();
696 let value = iter.next();
697 let option_to_lookup = key.replace("-", "_");
698 let mut found = false;
699 for &(candidate, setter, opt_type_desc, _) in $stat {
700 if option_to_lookup != candidate { continue }
701 if !setter(&mut op, value) {
702 match (value, opt_type_desc) {
703 (Some(..), None) => {
704 early_error(error_format, &format!("{} option `{}` takes no \
705 value", $outputname, key))
707 (None, Some(type_desc)) => {
708 early_error(error_format, &format!("{0} option `{1}` requires \
709 {2} ({3} {1}=<value>)",
713 (Some(value), Some(type_desc)) => {
714 early_error(error_format, &format!("incorrect value `{}` for {} \
715 option `{}` - {} was expected",
719 (None, None) => bug!()
726 early_error(error_format, &format!("unknown {} option: `{}`",
733 impl<'a> dep_tracking::DepTrackingHash for $struct_name {
735 fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType) {
736 let mut sub_hashes = BTreeMap::new();
741 [$dep_tracking_marker $($dep_warn_val,
745 dep_tracking::stable_hash(sub_hashes, hasher, error_format);
749 pub type $setter_name = fn(&mut $struct_name, v: Option<&str>) -> bool;
750 pub const $stat: &'static [(&'static str, $setter_name,
751 Option<&'static str>, &'static str)] =
752 &[ $( (stringify!($opt), $mod_set::$opt, $mod_desc::$parse, $desc) ),* ];
754 #[allow(non_upper_case_globals, dead_code)]
756 pub const parse_bool: Option<&'static str> = None;
757 pub const parse_opt_bool: Option<&'static str> =
758 Some("one of: `y`, `yes`, `on`, `n`, `no`, or `off`");
759 pub const parse_string: Option<&'static str> = Some("a string");
760 pub const parse_string_push: Option<&'static str> = Some("a string");
761 pub const parse_pathbuf_push: Option<&'static str> = Some("a path");
762 pub const parse_opt_string: Option<&'static str> = Some("a string");
763 pub const parse_opt_pathbuf: Option<&'static str> = Some("a path");
764 pub const parse_list: Option<&'static str> = Some("a space-separated list of strings");
765 pub const parse_opt_list: Option<&'static str> = Some("a space-separated list of strings");
766 pub const parse_uint: Option<&'static str> = Some("a number");
767 pub const parse_passes: Option<&'static str> =
768 Some("a space-separated list of passes, or `all`");
769 pub const parse_opt_uint: Option<&'static str> =
771 pub const parse_panic_strategy: Option<&'static str> =
772 Some("either `panic` or `abort`");
773 pub const parse_relro_level: Option<&'static str> =
774 Some("one of: `full`, `partial`, or `off`");
775 pub const parse_sanitizer: Option<&'static str> =
776 Some("one of: `address`, `leak`, `memory` or `thread`");
777 pub const parse_linker_flavor: Option<&'static str> =
778 Some(::rustc_back::LinkerFlavor::one_of());
779 pub const parse_optimization_fuel: Option<&'static str> =
780 Some("crate=integer");
781 pub const parse_unpretty: Option<&'static str> =
782 Some("`string` or `string=string`");
787 use super::{$struct_name, Passes, SomePasses, AllPasses, Sanitizer};
788 use rustc_back::{LinkerFlavor, PanicStrategy, RelroLevel};
789 use std::path::PathBuf;
792 pub fn $opt(cg: &mut $struct_name, v: Option<&str>) -> bool {
793 $parse(&mut cg.$opt, v)
797 fn parse_bool(slot: &mut bool, v: Option<&str>) -> bool {
800 None => { *slot = true; true }
804 fn parse_opt_bool(slot: &mut Option<bool>, v: Option<&str>) -> bool {
808 "n" | "no" | "off" => {
811 "y" | "yes" | "on" => {
814 _ => { return false; }
819 None => { *slot = Some(true); true }
823 fn parse_opt_string(slot: &mut Option<String>, v: Option<&str>) -> bool {
825 Some(s) => { *slot = Some(s.to_string()); true },
830 fn parse_opt_pathbuf(slot: &mut Option<PathBuf>, v: Option<&str>) -> bool {
832 Some(s) => { *slot = Some(PathBuf::from(s)); true },
837 fn parse_string(slot: &mut String, v: Option<&str>) -> bool {
839 Some(s) => { *slot = s.to_string(); true },
844 fn parse_string_push(slot: &mut Vec<String>, v: Option<&str>) -> bool {
846 Some(s) => { slot.push(s.to_string()); true },
851 fn parse_pathbuf_push(slot: &mut Vec<PathBuf>, v: Option<&str>) -> bool {
853 Some(s) => { slot.push(PathBuf::from(s)); true },
858 fn parse_list(slot: &mut Vec<String>, v: Option<&str>)
862 for s in s.split_whitespace() {
863 slot.push(s.to_string());
871 fn parse_opt_list(slot: &mut Option<Vec<String>>, v: Option<&str>)
875 let v = s.split_whitespace().map(|s| s.to_string()).collect();
883 fn parse_uint(slot: &mut usize, v: Option<&str>) -> bool {
884 match v.and_then(|s| s.parse().ok()) {
885 Some(i) => { *slot = i; true },
890 fn parse_opt_uint(slot: &mut Option<usize>, v: Option<&str>) -> bool {
892 Some(s) => { *slot = s.parse().ok(); slot.is_some() }
893 None => { *slot = None; false }
897 fn parse_passes(slot: &mut Passes, v: Option<&str>) -> bool {
904 let mut passes = vec![];
905 if parse_list(&mut passes, v) {
906 *slot = SomePasses(passes);
915 fn parse_panic_strategy(slot: &mut Option<PanicStrategy>, v: Option<&str>) -> bool {
917 Some("unwind") => *slot = Some(PanicStrategy::Unwind),
918 Some("abort") => *slot = Some(PanicStrategy::Abort),
924 fn parse_relro_level(slot: &mut Option<RelroLevel>, v: Option<&str>) -> bool {
927 match s.parse::<RelroLevel>() {
928 Ok(level) => *slot = Some(level),
937 fn parse_sanitizer(slote: &mut Option<Sanitizer>, v: Option<&str>) -> bool {
939 Some("address") => *slote = Some(Sanitizer::Address),
940 Some("leak") => *slote = Some(Sanitizer::Leak),
941 Some("memory") => *slote = Some(Sanitizer::Memory),
942 Some("thread") => *slote = Some(Sanitizer::Thread),
948 fn parse_linker_flavor(slote: &mut Option<LinkerFlavor>, v: Option<&str>) -> bool {
949 match v.and_then(LinkerFlavor::from_str) {
950 Some(lf) => *slote = Some(lf),
956 fn parse_optimization_fuel(slot: &mut Option<(String, u64)>, v: Option<&str>) -> bool {
960 let parts = s.split('=').collect::<Vec<_>>();
961 if parts.len() != 2 { return false; }
962 let crate_name = parts[0].to_string();
963 let fuel = parts[1].parse::<u64>();
964 if fuel.is_err() { return false; }
965 *slot = Some((crate_name, fuel.unwrap()));
971 fn parse_unpretty(slot: &mut Option<String>, v: Option<&str>) -> bool {
974 Some(s) if s.split('=').count() <= 2 => {
975 *slot = Some(s.to_string());
984 options! {CodegenOptions, CodegenSetter, basic_codegen_options,
985 build_codegen_options, "C", "codegen",
986 CG_OPTIONS, cg_type_desc, cgsetters,
987 ar: Option<String> = (None, parse_opt_string, [UNTRACKED],
988 "this option is deprecated and does nothing"),
989 linker: Option<PathBuf> = (None, parse_opt_pathbuf, [UNTRACKED],
990 "system linker to link outputs with"),
991 link_arg: Vec<String> = (vec![], parse_string_push, [UNTRACKED],
992 "a single extra argument to append to the linker invocation (can be used several times)"),
993 link_args: Option<Vec<String>> = (None, parse_opt_list, [UNTRACKED],
994 "extra arguments to append to the linker invocation (space separated)"),
995 link_dead_code: bool = (false, parse_bool, [UNTRACKED],
996 "don't let linker strip dead code (turning it on can be used for code coverage)"),
997 lto: bool = (false, parse_bool, [TRACKED],
998 "perform LLVM link-time optimizations"),
999 target_cpu: Option<String> = (None, parse_opt_string, [TRACKED],
1000 "select target processor (rustc --print target-cpus for details)"),
1001 target_feature: String = ("".to_string(), parse_string, [TRACKED],
1002 "target specific attributes (rustc --print target-features for details)"),
1003 passes: Vec<String> = (Vec::new(), parse_list, [TRACKED],
1004 "a list of extra LLVM passes to run (space separated)"),
1005 llvm_args: Vec<String> = (Vec::new(), parse_list, [TRACKED],
1006 "a list of arguments to pass to llvm (space separated)"),
1007 save_temps: bool = (false, parse_bool, [UNTRACKED_WITH_WARNING(true,
1008 "`-C save-temps` might not produce all requested temporary products \
1009 when incremental compilation is enabled.")],
1010 "save all temporary output files during compilation"),
1011 rpath: bool = (false, parse_bool, [UNTRACKED],
1012 "set rpath values in libs/exes"),
1013 overflow_checks: Option<bool> = (None, parse_opt_bool, [TRACKED],
1014 "use overflow checks for integer arithmetic"),
1015 no_prepopulate_passes: bool = (false, parse_bool, [TRACKED],
1016 "don't pre-populate the pass manager with a list of passes"),
1017 no_vectorize_loops: bool = (false, parse_bool, [TRACKED],
1018 "don't run the loop vectorization optimization passes"),
1019 no_vectorize_slp: bool = (false, parse_bool, [TRACKED],
1020 "don't run LLVM's SLP vectorization pass"),
1021 soft_float: bool = (false, parse_bool, [TRACKED],
1022 "use soft float ABI (*eabihf targets only)"),
1023 prefer_dynamic: bool = (false, parse_bool, [TRACKED],
1024 "prefer dynamic linking to static linking"),
1025 no_integrated_as: bool = (false, parse_bool, [TRACKED],
1026 "use an external assembler rather than LLVM's integrated one"),
1027 no_redzone: Option<bool> = (None, parse_opt_bool, [TRACKED],
1028 "disable the use of the redzone"),
1029 relocation_model: Option<String> = (None, parse_opt_string, [TRACKED],
1030 "choose the relocation model to use (rustc --print relocation-models for details)"),
1031 code_model: Option<String> = (None, parse_opt_string, [TRACKED],
1032 "choose the code model to use (rustc --print code-models for details)"),
1033 metadata: Vec<String> = (Vec::new(), parse_list, [TRACKED],
1034 "metadata to mangle symbol names with"),
1035 extra_filename: String = ("".to_string(), parse_string, [UNTRACKED],
1036 "extra data to put in each output filename"),
1037 codegen_units: Option<usize> = (None, parse_opt_uint, [UNTRACKED],
1038 "divide crate into N units to optimize in parallel"),
1039 remark: Passes = (SomePasses(Vec::new()), parse_passes, [UNTRACKED],
1040 "print remarks for these optimization passes (space separated, or \"all\")"),
1041 no_stack_check: bool = (false, parse_bool, [UNTRACKED],
1042 "the --no-stack-check flag is deprecated and does nothing"),
1043 debuginfo: Option<usize> = (None, parse_opt_uint, [TRACKED],
1044 "debug info emission level, 0 = no debug info, 1 = line tables only, \
1045 2 = full debug info with variable and type information"),
1046 opt_level: Option<String> = (None, parse_opt_string, [TRACKED],
1047 "optimize with possible levels 0-3, s, or z"),
1048 debug_assertions: Option<bool> = (None, parse_opt_bool, [TRACKED],
1049 "explicitly enable the cfg(debug_assertions) directive"),
1050 inline_threshold: Option<usize> = (None, parse_opt_uint, [TRACKED],
1051 "set the threshold for inlining a function (default: 225)"),
1052 panic: Option<PanicStrategy> = (None, parse_panic_strategy,
1053 [TRACKED], "panic strategy to compile crate with"),
1054 incremental: Option<String> = (None, parse_opt_string, [UNTRACKED],
1055 "enable incremental compilation"),
1058 options! {DebuggingOptions, DebuggingSetter, basic_debugging_options,
1059 build_debugging_options, "Z", "debugging",
1060 DB_OPTIONS, db_type_desc, dbsetters,
1061 codegen_backend: Option<String> = (None, parse_opt_string, [TRACKED],
1062 "the backend to use"),
1063 verbose: bool = (false, parse_bool, [UNTRACKED],
1064 "in general, enable more debug printouts"),
1065 span_free_formats: bool = (false, parse_bool, [UNTRACKED],
1066 "when debug-printing compiler state, do not include spans"), // o/w tests have closure@path
1067 identify_regions: bool = (false, parse_bool, [UNTRACKED],
1068 "make unnamed regions display as '# (where # is some non-ident unique id)"),
1069 emit_end_regions: bool = (false, parse_bool, [UNTRACKED],
1070 "emit EndRegion as part of MIR; enable transforms that solely process EndRegion"),
1071 borrowck: Option<String> = (None, parse_opt_string, [UNTRACKED],
1072 "select which borrowck is used (`ast`, `mir`, or `compare`)"),
1073 two_phase_borrows: bool = (false, parse_bool, [UNTRACKED],
1074 "use two-phase reserved/active distinction for `&mut` borrows in MIR borrowck"),
1075 time_passes: bool = (false, parse_bool, [UNTRACKED],
1076 "measure time of each rustc pass"),
1077 count_llvm_insns: bool = (false, parse_bool,
1078 [UNTRACKED_WITH_WARNING(true,
1079 "The output generated by `-Z count_llvm_insns` might not be reliable \
1080 when used with incremental compilation")],
1081 "count where LLVM instrs originate"),
1082 time_llvm_passes: bool = (false, parse_bool, [UNTRACKED_WITH_WARNING(true,
1083 "The output of `-Z time-llvm-passes` will only reflect timings of \
1084 re-translated modules when used with incremental compilation" )],
1085 "measure time of each LLVM pass"),
1086 input_stats: bool = (false, parse_bool, [UNTRACKED],
1087 "gather statistics about the input"),
1088 trans_stats: bool = (false, parse_bool, [UNTRACKED_WITH_WARNING(true,
1089 "The output of `-Z trans-stats` might not be accurate when incremental \
1090 compilation is enabled")],
1091 "gather trans statistics"),
1092 asm_comments: bool = (false, parse_bool, [TRACKED],
1093 "generate comments into the assembly (may change behavior)"),
1094 no_verify: bool = (false, parse_bool, [TRACKED],
1095 "skip LLVM verification"),
1096 borrowck_stats: bool = (false, parse_bool, [UNTRACKED],
1097 "gather borrowck statistics"),
1098 no_landing_pads: bool = (false, parse_bool, [TRACKED],
1099 "omit landing pads for unwinding"),
1100 fewer_names: bool = (false, parse_bool, [TRACKED],
1101 "reduce memory use by retaining fewer names within compilation artifacts (LLVM-IR)"),
1102 meta_stats: bool = (false, parse_bool, [UNTRACKED],
1103 "gather metadata statistics"),
1104 print_link_args: bool = (false, parse_bool, [UNTRACKED],
1105 "print the arguments passed to the linker"),
1106 print_llvm_passes: bool = (false, parse_bool, [UNTRACKED],
1107 "prints the llvm optimization passes being run"),
1108 ast_json: bool = (false, parse_bool, [UNTRACKED],
1109 "print the AST as JSON and halt"),
1110 query_threads: Option<usize> = (None, parse_opt_uint, [UNTRACKED],
1111 "execute queries on a thread pool with N threads"),
1112 ast_json_noexpand: bool = (false, parse_bool, [UNTRACKED],
1113 "print the pre-expansion AST as JSON and halt"),
1114 ls: bool = (false, parse_bool, [UNTRACKED],
1115 "list the symbols defined by a library crate"),
1116 save_analysis: bool = (false, parse_bool, [UNTRACKED],
1117 "write syntax and type analysis (in JSON format) information, in \
1118 addition to normal output"),
1119 flowgraph_print_loans: bool = (false, parse_bool, [UNTRACKED],
1120 "include loan analysis data in -Z unpretty flowgraph output"),
1121 flowgraph_print_moves: bool = (false, parse_bool, [UNTRACKED],
1122 "include move analysis data in -Z unpretty flowgraph output"),
1123 flowgraph_print_assigns: bool = (false, parse_bool, [UNTRACKED],
1124 "include assignment analysis data in -Z unpretty flowgraph output"),
1125 flowgraph_print_all: bool = (false, parse_bool, [UNTRACKED],
1126 "include all dataflow analysis data in -Z unpretty flowgraph output"),
1127 print_region_graph: bool = (false, parse_bool, [UNTRACKED],
1128 "prints region inference graph. \
1129 Use with RUST_REGION_GRAPH=help for more info"),
1130 parse_only: bool = (false, parse_bool, [UNTRACKED],
1131 "parse only; do not compile, assemble, or link"),
1132 no_trans: bool = (false, parse_bool, [TRACKED],
1133 "run all passes except translation; no output"),
1134 treat_err_as_bug: bool = (false, parse_bool, [TRACKED],
1135 "treat all errors that occur as bugs"),
1136 external_macro_backtrace: bool = (false, parse_bool, [UNTRACKED],
1137 "show macro backtraces even for non-local macros"),
1138 continue_parse_after_error: bool = (false, parse_bool, [TRACKED],
1139 "attempt to recover from parse errors (experimental)"),
1140 incremental: Option<String> = (None, parse_opt_string, [UNTRACKED],
1141 "enable incremental compilation (experimental)"),
1142 incremental_queries: bool = (true, parse_bool, [UNTRACKED],
1143 "enable incremental compilation support for queries (experimental)"),
1144 incremental_info: bool = (false, parse_bool, [UNTRACKED],
1145 "print high-level information about incremental reuse (or the lack thereof)"),
1146 incremental_dump_hash: bool = (false, parse_bool, [UNTRACKED],
1147 "dump hash information in textual format to stdout"),
1148 incremental_verify_ich: bool = (false, parse_bool, [UNTRACKED],
1149 "verify incr. comp. hashes of green query instances"),
1150 incremental_ignore_spans: bool = (false, parse_bool, [UNTRACKED],
1151 "ignore spans during ICH computation -- used for testing"),
1152 dump_dep_graph: bool = (false, parse_bool, [UNTRACKED],
1153 "dump the dependency graph to $RUST_DEP_GRAPH (default: /tmp/dep_graph.gv)"),
1154 query_dep_graph: bool = (false, parse_bool, [UNTRACKED],
1155 "enable queries of the dependency graph for regression testing"),
1156 profile_queries: bool = (false, parse_bool, [UNTRACKED],
1157 "trace and profile the queries of the incremental compilation framework"),
1158 profile_queries_and_keys: bool = (false, parse_bool, [UNTRACKED],
1159 "trace and profile the queries and keys of the incremental compilation framework"),
1160 no_analysis: bool = (false, parse_bool, [UNTRACKED],
1161 "parse and expand the source, but run no analysis"),
1162 extra_plugins: Vec<String> = (Vec::new(), parse_list, [TRACKED],
1163 "load extra plugins"),
1164 unstable_options: bool = (false, parse_bool, [UNTRACKED],
1165 "adds unstable command line options to rustc interface"),
1166 force_overflow_checks: Option<bool> = (None, parse_opt_bool, [TRACKED],
1167 "force overflow checks on or off"),
1168 trace_macros: bool = (false, parse_bool, [UNTRACKED],
1169 "for every macro invocation, print its name and arguments"),
1170 debug_macros: bool = (false, parse_bool, [TRACKED],
1171 "emit line numbers debug info inside macros"),
1172 enable_nonzeroing_move_hints: bool = (false, parse_bool, [TRACKED],
1173 "force nonzeroing move optimization on"),
1174 keep_hygiene_data: bool = (false, parse_bool, [UNTRACKED],
1175 "don't clear the hygiene data after analysis"),
1176 keep_ast: bool = (false, parse_bool, [UNTRACKED],
1177 "keep the AST after lowering it to HIR"),
1178 show_span: Option<String> = (None, parse_opt_string, [TRACKED],
1179 "show spans for compiler debugging (expr|pat|ty)"),
1180 print_type_sizes: bool = (false, parse_bool, [UNTRACKED],
1181 "print layout information for each type encountered"),
1182 print_trans_items: Option<String> = (None, parse_opt_string, [UNTRACKED],
1183 "print the result of the translation item collection pass"),
1184 mir_opt_level: usize = (1, parse_uint, [TRACKED],
1185 "set the MIR optimization level (0-3, default: 1)"),
1186 mutable_noalias: bool = (false, parse_bool, [UNTRACKED],
1187 "emit noalias metadata for mutable references"),
1188 dump_mir: Option<String> = (None, parse_opt_string, [UNTRACKED],
1189 "dump MIR state at various points in translation"),
1190 dump_mir_dir: String = (String::from("mir_dump"), parse_string, [UNTRACKED],
1191 "the directory the MIR is dumped into"),
1192 dump_mir_graphviz: bool = (false, parse_bool, [UNTRACKED],
1193 "in addition to `.mir` files, create graphviz `.dot` files"),
1194 dump_mir_exclude_pass_number: bool = (false, parse_bool, [UNTRACKED],
1195 "if set, exclude the pass number when dumping MIR (used in tests)"),
1196 mir_emit_validate: usize = (0, parse_uint, [TRACKED],
1197 "emit Validate MIR statements, interpreted e.g. by miri (0: do not emit; 1: if function \
1198 contains unsafe block, only validate arguments; 2: always emit full validation)"),
1199 perf_stats: bool = (false, parse_bool, [UNTRACKED],
1200 "print some performance-related statistics"),
1201 hir_stats: bool = (false, parse_bool, [UNTRACKED],
1202 "print some statistics about AST and HIR"),
1203 mir_stats: bool = (false, parse_bool, [UNTRACKED],
1204 "print some statistics about MIR"),
1205 always_encode_mir: bool = (false, parse_bool, [TRACKED],
1206 "encode MIR of all functions into the crate metadata"),
1207 miri: bool = (false, parse_bool, [TRACKED],
1208 "check the miri const evaluator against the old ctfe"),
1209 osx_rpath_install_name: bool = (false, parse_bool, [TRACKED],
1210 "pass `-install_name @rpath/...` to the macOS linker"),
1211 sanitizer: Option<Sanitizer> = (None, parse_sanitizer, [TRACKED],
1213 linker_flavor: Option<LinkerFlavor> = (None, parse_linker_flavor, [UNTRACKED],
1215 fuel: Option<(String, u64)> = (None, parse_optimization_fuel, [TRACKED],
1216 "set the optimization fuel quota for a crate"),
1217 print_fuel: Option<String> = (None, parse_opt_string, [TRACKED],
1218 "make Rustc print the total optimization fuel used by a crate"),
1219 remap_path_prefix_from: Vec<PathBuf> = (vec![], parse_pathbuf_push, [TRACKED],
1220 "add a source pattern to the file path remapping config"),
1221 remap_path_prefix_to: Vec<PathBuf> = (vec![], parse_pathbuf_push, [TRACKED],
1222 "add a mapping target to the file path remapping config"),
1223 force_unstable_if_unmarked: bool = (false, parse_bool, [TRACKED],
1224 "force all crates to be `rustc_private` unstable"),
1225 pre_link_arg: Vec<String> = (vec![], parse_string_push, [UNTRACKED],
1226 "a single extra argument to prepend the linker invocation (can be used several times)"),
1227 pre_link_args: Option<Vec<String>> = (None, parse_opt_list, [UNTRACKED],
1228 "extra arguments to prepend to the linker invocation (space separated)"),
1229 profile: bool = (false, parse_bool, [TRACKED],
1230 "insert profiling code"),
1231 relro_level: Option<RelroLevel> = (None, parse_relro_level, [TRACKED],
1232 "choose which RELRO level to use"),
1233 nll: bool = (false, parse_bool, [UNTRACKED],
1234 "run the non-lexical lifetimes MIR pass"),
1235 nll_dump_cause: bool = (false, parse_bool, [UNTRACKED],
1236 "dump cause information when reporting errors from NLL"),
1237 trans_time_graph: bool = (false, parse_bool, [UNTRACKED],
1238 "generate a graphical HTML report of time spent in trans and LLVM"),
1239 thinlto: Option<bool> = (None, parse_opt_bool, [TRACKED],
1240 "enable ThinLTO when possible"),
1241 inline_in_all_cgus: Option<bool> = (None, parse_opt_bool, [TRACKED],
1242 "control whether #[inline] functions are in all cgus"),
1243 tls_model: Option<String> = (None, parse_opt_string, [TRACKED],
1244 "choose the TLS model to use (rustc --print tls-models for details)"),
1245 saturating_float_casts: bool = (false, parse_bool, [TRACKED],
1246 "make float->int casts UB-free: numbers outside the integer type's range are clipped to \
1247 the max/min integer respectively, and NaN is mapped to 0"),
1248 lower_128bit_ops: Option<bool> = (None, parse_opt_bool, [TRACKED],
1249 "rewrite operators on i128 and u128 into lang item calls (typically provided \
1250 by compiler-builtins) so translation doesn't need to support them,
1251 overriding the default for the current target"),
1252 human_readable_cgu_names: bool = (false, parse_bool, [TRACKED],
1253 "generate human-readable, predictable names for codegen units"),
1254 dep_info_omit_d_target: bool = (false, parse_bool, [TRACKED],
1255 "in dep-info output, omit targets for tracking dependencies of the dep-info files \
1257 unpretty: Option<String> = (None, parse_unpretty, [UNTRACKED],
1258 "Present the input source, unstable (and less-pretty) variants;
1259 valid types are any of the types for `--pretty`, as well as:
1260 `flowgraph=<nodeid>` (graphviz formatted flowgraph for node),
1261 `everybody_loops` (all function bodies replaced with `loop {}`),
1262 `hir` (the HIR), `hir,identified`, or
1263 `hir,typed` (HIR with types for each node)."),
1266 pub fn default_lib_output() -> CrateType {
1270 pub fn default_configuration(sess: &Session) -> ast::CrateConfig {
1271 let end = &sess.target.target.target_endian;
1272 let arch = &sess.target.target.arch;
1273 let wordsz = &sess.target.target.target_pointer_width;
1274 let os = &sess.target.target.target_os;
1275 let env = &sess.target.target.target_env;
1276 let vendor = &sess.target.target.target_vendor;
1277 let min_atomic_width = sess.target.target.min_atomic_width();
1278 let max_atomic_width = sess.target.target.max_atomic_width();
1280 let mut ret = HashSet::new();
1282 ret.insert((Symbol::intern("target_os"), Some(Symbol::intern(os))));
1283 if let Some(ref fam) = sess.target.target.options.target_family {
1284 ret.insert((Symbol::intern("target_family"), Some(Symbol::intern(fam))));
1285 if fam == "windows" || fam == "unix" {
1286 ret.insert((Symbol::intern(fam), None));
1289 ret.insert((Symbol::intern("target_arch"), Some(Symbol::intern(arch))));
1290 ret.insert((Symbol::intern("target_endian"), Some(Symbol::intern(end))));
1291 ret.insert((Symbol::intern("target_pointer_width"), Some(Symbol::intern(wordsz))));
1292 ret.insert((Symbol::intern("target_env"), Some(Symbol::intern(env))));
1293 ret.insert((Symbol::intern("target_vendor"), Some(Symbol::intern(vendor))));
1294 if sess.target.target.options.has_elf_tls {
1295 ret.insert((Symbol::intern("target_thread_local"), None));
1297 for &i in &[8, 16, 32, 64, 128] {
1298 if i >= min_atomic_width && i <= max_atomic_width {
1299 let s = i.to_string();
1300 ret.insert((Symbol::intern("target_has_atomic"), Some(Symbol::intern(&s))));
1302 ret.insert((Symbol::intern("target_has_atomic"), Some(Symbol::intern("ptr"))));
1306 if sess.opts.debug_assertions {
1307 ret.insert((Symbol::intern("debug_assertions"), None));
1309 if sess.opts.crate_types.contains(&CrateTypeProcMacro) {
1310 ret.insert((Symbol::intern("proc_macro"), None));
1315 pub fn build_configuration(sess: &Session,
1316 mut user_cfg: ast::CrateConfig)
1317 -> ast::CrateConfig {
1318 // Combine the configuration requested by the session (command line) with
1319 // some default and generated configuration items
1320 let default_cfg = default_configuration(sess);
1321 // If the user wants a test runner, then add the test cfg
1323 user_cfg.insert((Symbol::intern("test"), None));
1325 user_cfg.extend(default_cfg.iter().cloned());
1329 pub fn build_target_config(opts: &Options, sp: &Handler) -> Config {
1330 let target = match Target::search(&opts.target_triple) {
1333 sp.struct_fatal(&format!("Error loading target specification: {}", e))
1334 .help("Use `--print target-list` for a list of built-in targets")
1340 let (isize_ty, usize_ty) = match &target.target_pointer_width[..] {
1341 "16" => (ast::IntTy::I16, ast::UintTy::U16),
1342 "32" => (ast::IntTy::I32, ast::UintTy::U32),
1343 "64" => (ast::IntTy::I64, ast::UintTy::U64),
1344 w => panic!(sp.fatal(&format!("target specification was invalid: \
1345 unrecognized target-pointer-width {}", w))),
1355 #[derive(Copy, Clone, PartialEq, Eq, Debug)]
1356 pub enum OptionStability {
1362 pub struct RustcOptGroup {
1363 pub apply: Box<Fn(&mut getopts::Options) -> &mut getopts::Options>,
1364 pub name: &'static str,
1365 pub stability: OptionStability,
1368 impl RustcOptGroup {
1369 pub fn is_stable(&self) -> bool {
1370 self.stability == OptionStability::Stable
1373 pub fn stable<F>(name: &'static str, f: F) -> RustcOptGroup
1374 where F: Fn(&mut getopts::Options) -> &mut getopts::Options + 'static,
1379 stability: OptionStability::Stable,
1383 pub fn unstable<F>(name: &'static str, f: F) -> RustcOptGroup
1384 where F: Fn(&mut getopts::Options) -> &mut getopts::Options + 'static,
1389 stability: OptionStability::Unstable,
1394 // The `opt` local module holds wrappers around the `getopts` API that
1395 // adds extra rustc-specific metadata to each option; such metadata
1396 // is exposed by . The public
1397 // functions below ending with `_u` are the functions that return
1398 // *unstable* options, i.e. options that are only enabled when the
1399 // user also passes the `-Z unstable-options` debugging flag.
1401 // The `fn opt_u` etc below are written so that we can use them
1402 // in the future; do not warn about them not being used right now.
1403 #![allow(dead_code)]
1406 use super::RustcOptGroup;
1408 pub type R = RustcOptGroup;
1409 pub type S = &'static str;
1411 fn stable<F>(name: S, f: F) -> R
1412 where F: Fn(&mut getopts::Options) -> &mut getopts::Options + 'static
1414 RustcOptGroup::stable(name, f)
1417 fn unstable<F>(name: S, f: F) -> R
1418 where F: Fn(&mut getopts::Options) -> &mut getopts::Options + 'static
1420 RustcOptGroup::unstable(name, f)
1423 fn longer(a: S, b: S) -> S {
1424 if a.len() > b.len() {
1431 pub fn opt_s(a: S, b: S, c: S, d: S) -> R {
1432 stable(longer(a, b), move |opts| opts.optopt(a, b, c, d))
1434 pub fn multi_s(a: S, b: S, c: S, d: S) -> R {
1435 stable(longer(a, b), move |opts| opts.optmulti(a, b, c, d))
1437 pub fn flag_s(a: S, b: S, c: S) -> R {
1438 stable(longer(a, b), move |opts| opts.optflag(a, b, c))
1440 pub fn flagopt_s(a: S, b: S, c: S, d: S) -> R {
1441 stable(longer(a, b), move |opts| opts.optflagopt(a, b, c, d))
1443 pub fn flagmulti_s(a: S, b: S, c: S) -> R {
1444 stable(longer(a, b), move |opts| opts.optflagmulti(a, b, c))
1447 pub fn opt(a: S, b: S, c: S, d: S) -> R {
1448 unstable(longer(a, b), move |opts| opts.optopt(a, b, c, d))
1450 pub fn multi(a: S, b: S, c: S, d: S) -> R {
1451 unstable(longer(a, b), move |opts| opts.optmulti(a, b, c, d))
1453 pub fn flag(a: S, b: S, c: S) -> R {
1454 unstable(longer(a, b), move |opts| opts.optflag(a, b, c))
1456 pub fn flagopt(a: S, b: S, c: S, d: S) -> R {
1457 unstable(longer(a, b), move |opts| opts.optflagopt(a, b, c, d))
1459 pub fn flagmulti(a: S, b: S, c: S) -> R {
1460 unstable(longer(a, b), move |opts| opts.optflagmulti(a, b, c))
1464 /// Returns the "short" subset of the rustc command line options,
1465 /// including metadata for each option, such as whether the option is
1466 /// part of the stable long-term interface for rustc.
1467 pub fn rustc_short_optgroups() -> Vec<RustcOptGroup> {
1469 opt::flag_s("h", "help", "Display this message"),
1470 opt::multi_s("", "cfg", "Configure the compilation environment", "SPEC"),
1471 opt::multi_s("L", "", "Add a directory to the library search path. The
1472 optional KIND can be one of dependency, crate, native,
1473 framework or all (the default).", "[KIND=]PATH"),
1474 opt::multi_s("l", "", "Link the generated crate(s) to the specified native
1475 library NAME. The optional KIND can be one of
1476 static, dylib, or framework. If omitted, dylib is
1477 assumed.", "[KIND=]NAME"),
1478 opt::multi_s("", "crate-type", "Comma separated list of types of crates
1479 for the compiler to emit",
1480 "[bin|lib|rlib|dylib|cdylib|staticlib|proc-macro]"),
1481 opt::opt_s("", "crate-name", "Specify the name of the crate being built",
1483 opt::multi_s("", "emit", "Comma separated list of types of output for \
1484 the compiler to emit",
1485 "[asm|llvm-bc|llvm-ir|obj|metadata|link|dep-info|mir]"),
1486 opt::multi_s("", "print", "Comma separated list of compiler information to \
1488 "[crate-name|file-names|sysroot|cfg|target-list|\
1489 target-cpus|target-features|relocation-models|\
1490 code-models|tls-models|target-spec-json|native-static-libs]"),
1491 opt::flagmulti_s("g", "", "Equivalent to -C debuginfo=2"),
1492 opt::flagmulti_s("O", "", "Equivalent to -C opt-level=2"),
1493 opt::opt_s("o", "", "Write output to <filename>", "FILENAME"),
1494 opt::opt_s("", "out-dir", "Write output to compiler-chosen filename \
1496 opt::opt_s("", "explain", "Provide a detailed explanation of an error \
1498 opt::flag_s("", "test", "Build a test harness"),
1499 opt::opt_s("", "target", "Target triple for which the code is compiled", "TARGET"),
1500 opt::multi_s("W", "warn", "Set lint warnings", "OPT"),
1501 opt::multi_s("A", "allow", "Set lint allowed", "OPT"),
1502 opt::multi_s("D", "deny", "Set lint denied", "OPT"),
1503 opt::multi_s("F", "forbid", "Set lint forbidden", "OPT"),
1504 opt::multi_s("", "cap-lints", "Set the most restrictive lint level. \
1505 More restrictive lints are capped at this \
1507 opt::multi_s("C", "codegen", "Set a codegen option", "OPT[=VALUE]"),
1508 opt::flag_s("V", "version", "Print version info and exit"),
1509 opt::flag_s("v", "verbose", "Use verbose output"),
1513 /// Returns all rustc command line options, including metadata for
1514 /// each option, such as whether the option is part of the stable
1515 /// long-term interface for rustc.
1516 pub fn rustc_optgroups() -> Vec<RustcOptGroup> {
1517 let mut opts = rustc_short_optgroups();
1519 opt::multi_s("", "extern", "Specify where an external rust library is located",
1521 opt::opt_s("", "sysroot", "Override the system root", "PATH"),
1522 opt::multi("Z", "", "Set internal debugging options", "FLAG"),
1523 opt::opt_s("", "error-format",
1524 "How errors and other messages are produced",
1525 "human|json|short"),
1526 opt::opt_s("", "color", "Configure coloring of output:
1527 auto = colorize, if output goes to a tty (default);
1528 always = always colorize output;
1529 never = never colorize output", "auto|always|never"),
1531 opt::opt("", "pretty",
1532 "Pretty-print the input instead of compiling;
1533 valid types are: `normal` (un-annotated source),
1534 `expanded` (crates expanded), or
1535 `expanded,identified` (fully parenthesized, AST nodes with IDs).",
1541 // Convert strings provided as --cfg [cfgspec] into a crate_cfg
1542 pub fn parse_cfgspecs(cfgspecs: Vec<String> ) -> ast::CrateConfig {
1543 cfgspecs.into_iter().map(|s| {
1544 let sess = parse::ParseSess::new(FilePathMapping::empty());
1546 parse::new_parser_from_source_str(&sess, FileName::CfgSpec, s.to_string());
1548 let meta_item = panictry!(parser.parse_meta_item());
1550 if parser.token != token::Eof {
1551 early_error(ErrorOutputType::default(), &format!("invalid --cfg argument: {}", s))
1552 } else if meta_item.is_meta_item_list() {
1554 format!("invalid predicate in --cfg command line argument: `{}`", meta_item.name());
1555 early_error(ErrorOutputType::default(), &msg)
1558 (meta_item.name(), meta_item.value_str())
1559 }).collect::<ast::CrateConfig>()
1562 pub fn build_session_options_and_crate_config(matches: &getopts::Matches)
1563 -> (Options, ast::CrateConfig) {
1564 let color = match matches.opt_str("color").as_ref().map(|s| &s[..]) {
1565 Some("auto") => ColorConfig::Auto,
1566 Some("always") => ColorConfig::Always,
1567 Some("never") => ColorConfig::Never,
1569 None => ColorConfig::Auto,
1572 early_error(ErrorOutputType::default(), &format!("argument for --color must be auto, \
1573 always or never (instead was `{}`)",
1578 // We need the opts_present check because the driver will send us Matches
1579 // with only stable options if no unstable options are used. Since error-format
1580 // is unstable, it will not be present. We have to use opts_present not
1581 // opt_present because the latter will panic.
1582 let error_format = if matches.opts_present(&["error-format".to_owned()]) {
1583 match matches.opt_str("error-format").as_ref().map(|s| &s[..]) {
1584 Some("human") => ErrorOutputType::HumanReadable(color),
1585 Some("json") => ErrorOutputType::Json(false),
1586 Some("pretty-json") => ErrorOutputType::Json(true),
1588 if nightly_options::is_unstable_enabled(matches) {
1589 ErrorOutputType::Short(color)
1591 early_error(ErrorOutputType::default(),
1592 &format!("the `-Z unstable-options` flag must also be passed to \
1593 enable the short error message option"));
1596 None => ErrorOutputType::HumanReadable(color),
1599 early_error(ErrorOutputType::HumanReadable(color),
1600 &format!("argument for --error-format must be `human`, `json` or \
1601 `short` (instead was `{}`)",
1606 ErrorOutputType::HumanReadable(color)
1609 let unparsed_crate_types = matches.opt_strs("crate-type");
1610 let crate_types = parse_crate_types_from_list(unparsed_crate_types)
1611 .unwrap_or_else(|e| early_error(error_format, &e[..]));
1613 let mut lint_opts = vec![];
1614 let mut describe_lints = false;
1616 for &level in &[lint::Allow, lint::Warn, lint::Deny, lint::Forbid] {
1617 for lint_name in matches.opt_strs(level.as_str()) {
1618 if lint_name == "help" {
1619 describe_lints = true;
1621 lint_opts.push((lint_name.replace("-", "_"), level));
1626 let lint_cap = matches.opt_str("cap-lints").map(|cap| {
1627 lint::Level::from_str(&cap).unwrap_or_else(|| {
1628 early_error(error_format, &format!("unknown lint level: `{}`", cap))
1632 let mut debugging_opts = build_debugging_options(matches, error_format);
1634 if !debugging_opts.unstable_options && error_format == ErrorOutputType::Json(true) {
1635 early_error(ErrorOutputType::Json(false),
1636 "--error-format=pretty-json is unstable");
1639 let mut output_types = BTreeMap::new();
1640 if !debugging_opts.parse_only {
1641 for list in matches.opt_strs("emit") {
1642 for output_type in list.split(',') {
1643 let mut parts = output_type.splitn(2, '=');
1644 let shorthand = parts.next().unwrap();
1645 let output_type = match OutputType::from_shorthand(shorthand) {
1646 Some(output_type) => output_type,
1647 None => early_error(error_format, &format!(
1648 "unknown emission type: `{}` - expected one of: {}",
1649 shorthand, OutputType::shorthands_display(),
1652 let path = parts.next().map(PathBuf::from);
1653 output_types.insert(output_type, path);
1657 if output_types.is_empty() {
1658 output_types.insert(OutputType::Exe, None);
1661 let remap_path_prefix_sources = debugging_opts.remap_path_prefix_from.len();
1662 let remap_path_prefix_targets = debugging_opts.remap_path_prefix_from.len();
1664 if remap_path_prefix_targets < remap_path_prefix_sources {
1665 for source in &debugging_opts.remap_path_prefix_from[remap_path_prefix_targets..] {
1666 early_error(error_format,
1667 &format!("option `-Zremap-path-prefix-from='{}'` does not have \
1668 a corresponding `-Zremap-path-prefix-to`", source.display()))
1670 } else if remap_path_prefix_targets > remap_path_prefix_sources {
1671 for target in &debugging_opts.remap_path_prefix_to[remap_path_prefix_sources..] {
1672 early_error(error_format,
1673 &format!("option `-Zremap-path-prefix-to='{}'` does not have \
1674 a corresponding `-Zremap-path-prefix-from`", target.display()))
1678 let mut cg = build_codegen_options(matches, error_format);
1679 let mut codegen_units = cg.codegen_units;
1680 let mut thinlto = None;
1682 // Issue #30063: if user requests llvm-related output to one
1683 // particular path, disable codegen-units.
1684 let incompatible: Vec<_> = output_types.iter()
1685 .map(|ot_path| ot_path.0)
1687 !ot.is_compatible_with_codegen_units_and_single_output_file()
1689 .map(|ot| ot.shorthand())
1691 if !incompatible.is_empty() {
1692 match codegen_units {
1693 Some(n) if n > 1 => {
1694 if matches.opt_present("o") {
1695 for ot in &incompatible {
1696 early_warn(error_format, &format!("--emit={} with -o incompatible with \
1697 -C codegen-units=N for N > 1",
1700 early_warn(error_format, "resetting to default -C codegen-units=1");
1701 codegen_units = Some(1);
1702 thinlto = Some(false);
1706 codegen_units = Some(1);
1707 thinlto = Some(false);
1712 if debugging_opts.query_threads == Some(0) {
1713 early_error(error_format, "Value for query threads must be a positive nonzero integer");
1716 if codegen_units == Some(0) {
1717 early_error(error_format, "Value for codegen units must be a positive nonzero integer");
1720 let incremental = match (&debugging_opts.incremental, &cg.incremental) {
1721 (&Some(ref path1), &Some(ref path2)) => {
1723 early_error(error_format,
1724 &format!("conflicting paths for `-Z incremental` and \
1725 `-C incremental` specified: {} versus {}",
1732 (&Some(ref path), &None) => Some(path),
1733 (&None, &Some(ref path)) => Some(path),
1734 (&None, &None) => None,
1735 }.map(|m| PathBuf::from(m));
1737 if cg.lto && incremental.is_some() {
1738 early_error(error_format, "can't perform LTO when compiling incrementally");
1741 let mut prints = Vec::<PrintRequest>::new();
1742 if cg.target_cpu.as_ref().map_or(false, |s| s == "help") {
1743 prints.push(PrintRequest::TargetCPUs);
1744 cg.target_cpu = None;
1746 if cg.target_feature == "help" {
1747 prints.push(PrintRequest::TargetFeatures);
1748 cg.target_feature = "".to_string();
1750 if cg.relocation_model.as_ref().map_or(false, |s| s == "help") {
1751 prints.push(PrintRequest::RelocationModels);
1752 cg.relocation_model = None;
1754 if cg.code_model.as_ref().map_or(false, |s| s == "help") {
1755 prints.push(PrintRequest::CodeModels);
1756 cg.code_model = None;
1758 if debugging_opts.tls_model.as_ref().map_or(false, |s| s == "help") {
1759 prints.push(PrintRequest::TlsModels);
1760 debugging_opts.tls_model = None;
1765 let sysroot_opt = matches.opt_str("sysroot").map(|m| PathBuf::from(&m));
1766 let target = matches.opt_str("target").unwrap_or(
1767 host_triple().to_string());
1769 if matches.opt_present("O") {
1770 if cg.opt_level.is_some() {
1771 early_error(error_format, "-O and -C opt-level both provided");
1775 match (cg.opt_level.as_ref().map(String::as_ref),
1776 nightly_options::is_nightly_build()) {
1777 (None, _) => OptLevel::No,
1778 (Some("0"), _) => OptLevel::No,
1779 (Some("1"), _) => OptLevel::Less,
1780 (Some("2"), _) => OptLevel::Default,
1781 (Some("3"), _) => OptLevel::Aggressive,
1782 (Some("s"), true) => OptLevel::Size,
1783 (Some("z"), true) => OptLevel::SizeMin,
1784 (Some("s"), false) | (Some("z"), false) => {
1785 early_error(error_format, &format!("the optimizations s or z are only \
1786 accepted on the nightly compiler"));
1789 early_error(error_format, &format!("optimization level needs to be \
1790 between 0-3 (instead was `{}`)",
1796 let debug_assertions = cg.debug_assertions.unwrap_or(opt_level == OptLevel::No);
1797 let debuginfo = if matches.opt_present("g") {
1798 if cg.debuginfo.is_some() {
1799 early_error(error_format, "-g and -C debuginfo both provided");
1803 match cg.debuginfo {
1804 None | Some(0) => NoDebugInfo,
1805 Some(1) => LimitedDebugInfo,
1806 Some(2) => FullDebugInfo,
1808 early_error(error_format, &format!("debug info level needs to be between \
1809 0-2 (instead was `{}`)",
1815 let mut search_paths = SearchPaths::new();
1816 for s in &matches.opt_strs("L") {
1817 search_paths.add_path(&s[..], error_format);
1820 let libs = matches.opt_strs("l").into_iter().map(|s| {
1821 // Parse string of the form "[KIND=]lib[:new_name]",
1822 // where KIND is one of "dylib", "framework", "static".
1823 let mut parts = s.splitn(2, '=');
1824 let kind = parts.next().unwrap();
1825 let (name, kind) = match (parts.next(), kind) {
1826 (None, name) => (name, None),
1827 (Some(name), "dylib") => (name, Some(cstore::NativeUnknown)),
1828 (Some(name), "framework") => (name, Some(cstore::NativeFramework)),
1829 (Some(name), "static") => (name, Some(cstore::NativeStatic)),
1830 (Some(name), "static-nobundle") => (name, Some(cstore::NativeStaticNobundle)),
1832 early_error(error_format, &format!("unknown library kind `{}`, expected \
1833 one of dylib, framework, or static",
1837 if kind == Some(cstore::NativeStaticNobundle) && !nightly_options::is_nightly_build() {
1838 early_error(error_format, &format!("the library kind 'static-nobundle' is only \
1839 accepted on the nightly compiler"));
1841 let mut name_parts = name.splitn(2, ':');
1842 let name = name_parts.next().unwrap();
1843 let new_name = name_parts.next();
1844 (name.to_string(), new_name.map(|n| n.to_string()), kind)
1847 let cfg = parse_cfgspecs(matches.opt_strs("cfg"));
1848 let test = matches.opt_present("test");
1850 prints.extend(matches.opt_strs("print").into_iter().map(|s| {
1852 "crate-name" => PrintRequest::CrateName,
1853 "file-names" => PrintRequest::FileNames,
1854 "sysroot" => PrintRequest::Sysroot,
1855 "cfg" => PrintRequest::Cfg,
1856 "target-list" => PrintRequest::TargetList,
1857 "target-cpus" => PrintRequest::TargetCPUs,
1858 "target-features" => PrintRequest::TargetFeatures,
1859 "relocation-models" => PrintRequest::RelocationModels,
1860 "code-models" => PrintRequest::CodeModels,
1861 "tls-models" => PrintRequest::TlsModels,
1862 "native-static-libs" => PrintRequest::NativeStaticLibs,
1863 "target-spec-json" => {
1864 if nightly_options::is_unstable_enabled(matches) {
1865 PrintRequest::TargetSpec
1867 early_error(error_format,
1868 &format!("the `-Z unstable-options` flag must also be passed to \
1869 enable the target-spec-json print option"));
1873 early_error(error_format, &format!("unknown print request `{}`", req))
1878 let borrowck_mode = match debugging_opts.borrowck.as_ref().map(|s| &s[..]) {
1879 None | Some("ast") => BorrowckMode::Ast,
1880 Some("mir") => BorrowckMode::Mir,
1881 Some("compare") => BorrowckMode::Compare,
1883 early_error(error_format, &format!("unknown borrowck mode `{}`", m))
1887 if !cg.remark.is_empty() && debuginfo == NoDebugInfo {
1888 early_warn(error_format, "-C remark will not show source locations without \
1892 let mut externs = BTreeMap::new();
1893 for arg in &matches.opt_strs("extern") {
1894 let mut parts = arg.splitn(2, '=');
1895 let name = match parts.next() {
1897 None => early_error(error_format, "--extern value must not be empty"),
1899 let location = match parts.next() {
1901 None => early_error(error_format, "--extern value must be of the format `foo=bar`"),
1904 externs.entry(name.to_string())
1905 .or_insert_with(BTreeSet::new)
1906 .insert(location.to_string());
1909 let crate_name = matches.opt_str("crate-name");
1913 optimize: opt_level,
1918 output_types: OutputTypes(output_types),
1920 maybe_sysroot: sysroot_opt,
1921 target_triple: target,
1929 externs: Externs(externs),
1933 unstable_features: UnstableFeatures::from_environment(),
1935 actually_rustdoc: false,
1936 cli_forced_codegen_units: codegen_units,
1937 cli_forced_thinlto: thinlto,
1942 pub fn parse_crate_types_from_list(list_list: Vec<String>)
1943 -> Result<Vec<CrateType>, String> {
1944 let mut crate_types: Vec<CrateType> = Vec::new();
1945 for unparsed_crate_type in &list_list {
1946 for part in unparsed_crate_type.split(',') {
1947 let new_part = match part {
1948 "lib" => default_lib_output(),
1949 "rlib" => CrateTypeRlib,
1950 "staticlib" => CrateTypeStaticlib,
1951 "dylib" => CrateTypeDylib,
1952 "cdylib" => CrateTypeCdylib,
1953 "bin" => CrateTypeExecutable,
1954 "proc-macro" => CrateTypeProcMacro,
1956 return Err(format!("unknown crate type: `{}`",
1960 if !crate_types.contains(&new_part) {
1961 crate_types.push(new_part)
1969 pub mod nightly_options {
1971 use syntax::feature_gate::UnstableFeatures;
1972 use super::{ErrorOutputType, OptionStability, RustcOptGroup};
1973 use session::early_error;
1975 pub fn is_unstable_enabled(matches: &getopts::Matches) -> bool {
1976 is_nightly_build() && matches.opt_strs("Z").iter().any(|x| *x == "unstable-options")
1979 pub fn is_nightly_build() -> bool {
1980 UnstableFeatures::from_environment().is_nightly_build()
1983 pub fn check_nightly_options(matches: &getopts::Matches, flags: &[RustcOptGroup]) {
1984 let has_z_unstable_option = matches.opt_strs("Z").iter().any(|x| *x == "unstable-options");
1985 let really_allows_unstable_options = UnstableFeatures::from_environment()
1986 .is_nightly_build();
1988 for opt in flags.iter() {
1989 if opt.stability == OptionStability::Stable {
1992 if !matches.opt_present(opt.name) {
1995 if opt.name != "Z" && !has_z_unstable_option {
1996 early_error(ErrorOutputType::default(),
1997 &format!("the `-Z unstable-options` flag must also be passed to enable \
2001 if really_allows_unstable_options {
2004 match opt.stability {
2005 OptionStability::Unstable => {
2006 let msg = format!("the option `{}` is only accepted on the \
2007 nightly compiler", opt.name);
2008 early_error(ErrorOutputType::default(), &msg);
2010 OptionStability::Stable => {}
2016 impl fmt::Display for CrateType {
2017 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
2019 CrateTypeExecutable => "bin".fmt(f),
2020 CrateTypeDylib => "dylib".fmt(f),
2021 CrateTypeRlib => "rlib".fmt(f),
2022 CrateTypeStaticlib => "staticlib".fmt(f),
2023 CrateTypeCdylib => "cdylib".fmt(f),
2024 CrateTypeProcMacro => "proc-macro".fmt(f),
2029 /// Commandline arguments passed to the compiler have to be incorporated with
2030 /// the dependency tracking system for incremental compilation. This module
2031 /// provides some utilities to make this more convenient.
2033 /// The values of all commandline arguments that are relevant for dependency
2034 /// tracking are hashed into a single value that determines whether the
2035 /// incremental compilation cache can be re-used or not. This hashing is done
2036 /// via the DepTrackingHash trait defined below, since the standard Hash
2037 /// implementation might not be suitable (e.g. arguments are stored in a Vec,
2038 /// the hash of which is order dependent, but we might not want the order of
2039 /// arguments to make a difference for the hash).
2041 /// However, since the value provided by Hash::hash often *is* suitable,
2042 /// especially for primitive types, there is the
2043 /// impl_dep_tracking_hash_via_hash!() macro that allows to simply reuse the
2044 /// Hash implementation for DepTrackingHash. It's important though that
2045 /// we have an opt-in scheme here, so one is hopefully forced to think about
2046 /// how the hash should be calculated when adding a new commandline argument.
2050 use session::search_paths::{PathKind, SearchPaths};
2051 use std::collections::BTreeMap;
2052 use std::hash::Hash;
2053 use std::path::PathBuf;
2054 use std::collections::hash_map::DefaultHasher;
2055 use super::{Passes, CrateType, OptLevel, DebugInfoLevel,
2056 OutputTypes, Externs, ErrorOutputType, Sanitizer};
2057 use syntax::feature_gate::UnstableFeatures;
2058 use rustc_back::{PanicStrategy, RelroLevel};
2060 pub trait DepTrackingHash {
2061 fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType);
2064 macro_rules! impl_dep_tracking_hash_via_hash {
2066 impl DepTrackingHash for $t {
2067 fn hash(&self, hasher: &mut DefaultHasher, _: ErrorOutputType) {
2068 Hash::hash(self, hasher);
2074 macro_rules! impl_dep_tracking_hash_for_sortable_vec_of {
2076 impl DepTrackingHash for Vec<$t> {
2077 fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType) {
2078 let mut elems: Vec<&$t> = self.iter().collect();
2080 Hash::hash(&elems.len(), hasher);
2081 for (index, elem) in elems.iter().enumerate() {
2082 Hash::hash(&index, hasher);
2083 DepTrackingHash::hash(*elem, hasher, error_format);
2090 impl_dep_tracking_hash_via_hash!(bool);
2091 impl_dep_tracking_hash_via_hash!(usize);
2092 impl_dep_tracking_hash_via_hash!(u64);
2093 impl_dep_tracking_hash_via_hash!(String);
2094 impl_dep_tracking_hash_via_hash!(PathBuf);
2095 impl_dep_tracking_hash_via_hash!(lint::Level);
2096 impl_dep_tracking_hash_via_hash!(Option<bool>);
2097 impl_dep_tracking_hash_via_hash!(Option<usize>);
2098 impl_dep_tracking_hash_via_hash!(Option<String>);
2099 impl_dep_tracking_hash_via_hash!(Option<(String, u64)>);
2100 impl_dep_tracking_hash_via_hash!(Option<PanicStrategy>);
2101 impl_dep_tracking_hash_via_hash!(Option<RelroLevel>);
2102 impl_dep_tracking_hash_via_hash!(Option<lint::Level>);
2103 impl_dep_tracking_hash_via_hash!(Option<PathBuf>);
2104 impl_dep_tracking_hash_via_hash!(Option<cstore::NativeLibraryKind>);
2105 impl_dep_tracking_hash_via_hash!(CrateType);
2106 impl_dep_tracking_hash_via_hash!(PanicStrategy);
2107 impl_dep_tracking_hash_via_hash!(RelroLevel);
2108 impl_dep_tracking_hash_via_hash!(Passes);
2109 impl_dep_tracking_hash_via_hash!(OptLevel);
2110 impl_dep_tracking_hash_via_hash!(DebugInfoLevel);
2111 impl_dep_tracking_hash_via_hash!(UnstableFeatures);
2112 impl_dep_tracking_hash_via_hash!(Externs);
2113 impl_dep_tracking_hash_via_hash!(OutputTypes);
2114 impl_dep_tracking_hash_via_hash!(cstore::NativeLibraryKind);
2115 impl_dep_tracking_hash_via_hash!(Sanitizer);
2116 impl_dep_tracking_hash_via_hash!(Option<Sanitizer>);
2118 impl_dep_tracking_hash_for_sortable_vec_of!(String);
2119 impl_dep_tracking_hash_for_sortable_vec_of!(PathBuf);
2120 impl_dep_tracking_hash_for_sortable_vec_of!(CrateType);
2121 impl_dep_tracking_hash_for_sortable_vec_of!((String, lint::Level));
2122 impl_dep_tracking_hash_for_sortable_vec_of!((String, Option<String>,
2123 Option<cstore::NativeLibraryKind>));
2124 impl_dep_tracking_hash_for_sortable_vec_of!((String, u64));
2125 impl DepTrackingHash for SearchPaths {
2126 fn hash(&self, hasher: &mut DefaultHasher, _: ErrorOutputType) {
2127 let mut elems: Vec<_> = self
2128 .iter(PathKind::All)
2131 Hash::hash(&elems, hasher);
2135 impl<T1, T2> DepTrackingHash for (T1, T2)
2136 where T1: DepTrackingHash,
2139 fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType) {
2140 Hash::hash(&0, hasher);
2141 DepTrackingHash::hash(&self.0, hasher, error_format);
2142 Hash::hash(&1, hasher);
2143 DepTrackingHash::hash(&self.1, hasher, error_format);
2147 impl<T1, T2, T3> DepTrackingHash for (T1, T2, T3)
2148 where T1: DepTrackingHash,
2149 T2: DepTrackingHash,
2152 fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType) {
2153 Hash::hash(&0, hasher);
2154 DepTrackingHash::hash(&self.0, hasher, error_format);
2155 Hash::hash(&1, hasher);
2156 DepTrackingHash::hash(&self.1, hasher, error_format);
2157 Hash::hash(&2, hasher);
2158 DepTrackingHash::hash(&self.2, hasher, error_format);
2162 // This is a stable hash because BTreeMap is a sorted container
2163 pub fn stable_hash(sub_hashes: BTreeMap<&'static str, &DepTrackingHash>,
2164 hasher: &mut DefaultHasher,
2165 error_format: ErrorOutputType) {
2166 for (key, sub_hash) in sub_hashes {
2167 // Using Hash::hash() instead of DepTrackingHash::hash() is fine for
2168 // the keys, as they are just plain strings
2169 Hash::hash(&key.len(), hasher);
2170 Hash::hash(key, hasher);
2171 sub_hash.hash(hasher, error_format);
2182 use session::config::{build_configuration, build_session_options_and_crate_config};
2183 use session::build_session;
2184 use std::collections::{BTreeMap, BTreeSet};
2185 use std::iter::FromIterator;
2186 use std::path::PathBuf;
2187 use super::{OutputType, OutputTypes, Externs};
2188 use rustc_back::{PanicStrategy, RelroLevel};
2189 use syntax::symbol::Symbol;
2191 fn optgroups() -> getopts::Options {
2192 let mut opts = getopts::Options::new();
2193 for group in super::rustc_optgroups() {
2194 (group.apply)(&mut opts);
2199 fn mk_map<K: Ord, V>(entries: Vec<(K, V)>) -> BTreeMap<K, V> {
2200 BTreeMap::from_iter(entries.into_iter())
2203 fn mk_set<V: Ord>(entries: Vec<V>) -> BTreeSet<V> {
2204 BTreeSet::from_iter(entries.into_iter())
2207 // When the user supplies --test we should implicitly supply --cfg test
2209 fn test_switch_implies_cfg_test() {
2211 &match optgroups().parse(&["--test".to_string()]) {
2213 Err(f) => panic!("test_switch_implies_cfg_test: {}", f)
2215 let registry = errors::registry::Registry::new(&[]);
2216 let (sessopts, cfg) = build_session_options_and_crate_config(matches);
2217 let sess = build_session(sessopts, None, registry);
2218 let cfg = build_configuration(&sess, cfg);
2219 assert!(cfg.contains(&(Symbol::intern("test"), None)));
2222 // When the user supplies --test and --cfg test, don't implicitly add
2223 // another --cfg test
2225 fn test_switch_implies_cfg_test_unless_cfg_test() {
2227 &match optgroups().parse(&["--test".to_string(), "--cfg=test".to_string()]) {
2230 panic!("test_switch_implies_cfg_test_unless_cfg_test: {}", f)
2233 let registry = errors::registry::Registry::new(&[]);
2234 let (sessopts, cfg) = build_session_options_and_crate_config(matches);
2235 let sess = build_session(sessopts, None, registry);
2236 let cfg = build_configuration(&sess, cfg);
2237 let mut test_items = cfg.iter().filter(|&&(name, _)| name == "test");
2238 assert!(test_items.next().is_some());
2239 assert!(test_items.next().is_none());
2243 fn test_can_print_warnings() {
2245 let matches = optgroups().parse(&[
2246 "-Awarnings".to_string()
2248 let registry = errors::registry::Registry::new(&[]);
2249 let (sessopts, _) = build_session_options_and_crate_config(&matches);
2250 let sess = build_session(sessopts, None, registry);
2251 assert!(!sess.diagnostic().flags.can_emit_warnings);
2255 let matches = optgroups().parse(&[
2256 "-Awarnings".to_string(),
2257 "-Dwarnings".to_string()
2259 let registry = errors::registry::Registry::new(&[]);
2260 let (sessopts, _) = build_session_options_and_crate_config(&matches);
2261 let sess = build_session(sessopts, None, registry);
2262 assert!(sess.diagnostic().flags.can_emit_warnings);
2266 let matches = optgroups().parse(&[
2267 "-Adead_code".to_string()
2269 let registry = errors::registry::Registry::new(&[]);
2270 let (sessopts, _) = build_session_options_and_crate_config(&matches);
2271 let sess = build_session(sessopts, None, registry);
2272 assert!(sess.diagnostic().flags.can_emit_warnings);
2277 fn test_output_types_tracking_hash_different_paths() {
2278 let mut v1 = super::basic_options();
2279 let mut v2 = super::basic_options();
2280 let mut v3 = super::basic_options();
2282 v1.output_types = OutputTypes::new(&[(OutputType::Exe,
2283 Some(PathBuf::from("./some/thing")))]);
2284 v2.output_types = OutputTypes::new(&[(OutputType::Exe,
2285 Some(PathBuf::from("/some/thing")))]);
2286 v3.output_types = OutputTypes::new(&[(OutputType::Exe, None)]);
2288 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
2289 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
2290 assert!(v2.dep_tracking_hash() != v3.dep_tracking_hash());
2293 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2294 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2295 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2299 fn test_output_types_tracking_hash_different_construction_order() {
2300 let mut v1 = super::basic_options();
2301 let mut v2 = super::basic_options();
2303 v1.output_types = OutputTypes::new(&[
2304 (OutputType::Exe, Some(PathBuf::from("./some/thing"))),
2305 (OutputType::Bitcode, Some(PathBuf::from("./some/thing.bc"))),
2308 v2.output_types = OutputTypes::new(&[
2309 (OutputType::Bitcode, Some(PathBuf::from("./some/thing.bc"))),
2310 (OutputType::Exe, Some(PathBuf::from("./some/thing"))),
2313 assert_eq!(v1.dep_tracking_hash(), v2.dep_tracking_hash());
2316 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2320 fn test_externs_tracking_hash_different_values() {
2321 let mut v1 = super::basic_options();
2322 let mut v2 = super::basic_options();
2323 let mut v3 = super::basic_options();
2325 v1.externs = Externs::new(mk_map(vec![
2326 (String::from("a"), mk_set(vec![String::from("b"),
2327 String::from("c")])),
2328 (String::from("d"), mk_set(vec![String::from("e"),
2329 String::from("f")])),
2332 v2.externs = Externs::new(mk_map(vec![
2333 (String::from("a"), mk_set(vec![String::from("b"),
2334 String::from("c")])),
2335 (String::from("X"), mk_set(vec![String::from("e"),
2336 String::from("f")])),
2339 v3.externs = Externs::new(mk_map(vec![
2340 (String::from("a"), mk_set(vec![String::from("b"),
2341 String::from("c")])),
2342 (String::from("d"), mk_set(vec![String::from("X"),
2343 String::from("f")])),
2346 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
2347 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
2348 assert!(v2.dep_tracking_hash() != v3.dep_tracking_hash());
2351 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2352 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2353 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2357 fn test_externs_tracking_hash_different_construction_order() {
2358 let mut v1 = super::basic_options();
2359 let mut v2 = super::basic_options();
2360 let mut v3 = super::basic_options();
2362 v1.externs = Externs::new(mk_map(vec![
2363 (String::from("a"), mk_set(vec![String::from("b"),
2364 String::from("c")])),
2365 (String::from("d"), mk_set(vec![String::from("e"),
2366 String::from("f")])),
2369 v2.externs = Externs::new(mk_map(vec![
2370 (String::from("d"), mk_set(vec![String::from("e"),
2371 String::from("f")])),
2372 (String::from("a"), mk_set(vec![String::from("b"),
2373 String::from("c")])),
2376 v3.externs = Externs::new(mk_map(vec![
2377 (String::from("a"), mk_set(vec![String::from("b"),
2378 String::from("c")])),
2379 (String::from("d"), mk_set(vec![String::from("f"),
2380 String::from("e")])),
2383 assert_eq!(v1.dep_tracking_hash(), v2.dep_tracking_hash());
2384 assert_eq!(v1.dep_tracking_hash(), v3.dep_tracking_hash());
2385 assert_eq!(v2.dep_tracking_hash(), v3.dep_tracking_hash());
2388 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2389 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2390 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2394 fn test_lints_tracking_hash_different_values() {
2395 let mut v1 = super::basic_options();
2396 let mut v2 = super::basic_options();
2397 let mut v3 = super::basic_options();
2399 v1.lint_opts = vec![(String::from("a"), lint::Allow),
2400 (String::from("b"), lint::Warn),
2401 (String::from("c"), lint::Deny),
2402 (String::from("d"), lint::Forbid)];
2404 v2.lint_opts = vec![(String::from("a"), lint::Allow),
2405 (String::from("b"), lint::Warn),
2406 (String::from("X"), lint::Deny),
2407 (String::from("d"), lint::Forbid)];
2409 v3.lint_opts = vec![(String::from("a"), lint::Allow),
2410 (String::from("b"), lint::Warn),
2411 (String::from("c"), lint::Forbid),
2412 (String::from("d"), lint::Deny)];
2414 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
2415 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
2416 assert!(v2.dep_tracking_hash() != v3.dep_tracking_hash());
2419 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2420 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2421 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2425 fn test_lints_tracking_hash_different_construction_order() {
2426 let mut v1 = super::basic_options();
2427 let mut v2 = super::basic_options();
2429 v1.lint_opts = vec![(String::from("a"), lint::Allow),
2430 (String::from("b"), lint::Warn),
2431 (String::from("c"), lint::Deny),
2432 (String::from("d"), lint::Forbid)];
2434 v2.lint_opts = vec![(String::from("a"), lint::Allow),
2435 (String::from("c"), lint::Deny),
2436 (String::from("b"), lint::Warn),
2437 (String::from("d"), lint::Forbid)];
2439 assert_eq!(v1.dep_tracking_hash(), v2.dep_tracking_hash());
2442 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2443 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2447 fn test_search_paths_tracking_hash_different_values() {
2448 let mut v1 = super::basic_options();
2449 let mut v2 = super::basic_options();
2450 let mut v3 = super::basic_options();
2451 let mut v4 = super::basic_options();
2452 let mut v5 = super::basic_options();
2455 v1.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2456 v1.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2457 v1.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2458 v1.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2459 v1.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2462 v2.search_paths.add_path("native=XXX", super::ErrorOutputType::Json(false));
2463 v2.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2464 v2.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2465 v2.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2466 v2.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2469 v2.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2470 v2.search_paths.add_path("crate=XXX", super::ErrorOutputType::Json(false));
2471 v2.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2472 v2.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2473 v2.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2475 // Dependency changed
2476 v3.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2477 v3.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2478 v3.search_paths.add_path("dependency=XXX", super::ErrorOutputType::Json(false));
2479 v3.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2480 v3.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2482 // Framework changed
2483 v4.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2484 v4.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2485 v4.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2486 v4.search_paths.add_path("framework=XXX", super::ErrorOutputType::Json(false));
2487 v4.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2490 v5.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2491 v5.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2492 v5.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2493 v5.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2494 v5.search_paths.add_path("all=XXX", super::ErrorOutputType::Json(false));
2496 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
2497 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
2498 assert!(v1.dep_tracking_hash() != v4.dep_tracking_hash());
2499 assert!(v1.dep_tracking_hash() != v5.dep_tracking_hash());
2502 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2503 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2504 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2505 assert_eq!(v4.dep_tracking_hash(), v4.clone().dep_tracking_hash());
2506 assert_eq!(v5.dep_tracking_hash(), v5.clone().dep_tracking_hash());
2510 fn test_search_paths_tracking_hash_different_order() {
2511 let mut v1 = super::basic_options();
2512 let mut v2 = super::basic_options();
2513 let mut v3 = super::basic_options();
2514 let mut v4 = super::basic_options();
2517 v1.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2518 v1.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2519 v1.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2520 v1.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2521 v1.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2523 v2.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2524 v2.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2525 v2.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2526 v2.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2527 v2.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2529 v3.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2530 v3.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2531 v3.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2532 v3.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2533 v3.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2535 v4.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2536 v4.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2537 v4.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2538 v4.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2539 v4.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2541 assert!(v1.dep_tracking_hash() == v2.dep_tracking_hash());
2542 assert!(v1.dep_tracking_hash() == v3.dep_tracking_hash());
2543 assert!(v1.dep_tracking_hash() == v4.dep_tracking_hash());
2546 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2547 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2548 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2549 assert_eq!(v4.dep_tracking_hash(), v4.clone().dep_tracking_hash());
2553 fn test_native_libs_tracking_hash_different_values() {
2554 let mut v1 = super::basic_options();
2555 let mut v2 = super::basic_options();
2556 let mut v3 = super::basic_options();
2557 let mut v4 = super::basic_options();
2560 v1.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2561 (String::from("b"), None, Some(cstore::NativeFramework)),
2562 (String::from("c"), None, Some(cstore::NativeUnknown))];
2565 v2.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2566 (String::from("X"), None, Some(cstore::NativeFramework)),
2567 (String::from("c"), None, Some(cstore::NativeUnknown))];
2570 v3.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2571 (String::from("b"), None, Some(cstore::NativeStatic)),
2572 (String::from("c"), None, Some(cstore::NativeUnknown))];
2575 v4.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2576 (String::from("b"), Some(String::from("X")), Some(cstore::NativeFramework)),
2577 (String::from("c"), None, Some(cstore::NativeUnknown))];
2579 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
2580 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
2581 assert!(v1.dep_tracking_hash() != v4.dep_tracking_hash());
2584 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2585 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2586 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2587 assert_eq!(v4.dep_tracking_hash(), v4.clone().dep_tracking_hash());
2591 fn test_native_libs_tracking_hash_different_order() {
2592 let mut v1 = super::basic_options();
2593 let mut v2 = super::basic_options();
2594 let mut v3 = super::basic_options();
2597 v1.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2598 (String::from("b"), None, Some(cstore::NativeFramework)),
2599 (String::from("c"), None, Some(cstore::NativeUnknown))];
2601 v2.libs = vec![(String::from("b"), None, Some(cstore::NativeFramework)),
2602 (String::from("a"), None, Some(cstore::NativeStatic)),
2603 (String::from("c"), None, Some(cstore::NativeUnknown))];
2605 v3.libs = vec![(String::from("c"), None, Some(cstore::NativeUnknown)),
2606 (String::from("a"), None, Some(cstore::NativeStatic)),
2607 (String::from("b"), None, Some(cstore::NativeFramework))];
2609 assert!(v1.dep_tracking_hash() == v2.dep_tracking_hash());
2610 assert!(v1.dep_tracking_hash() == v3.dep_tracking_hash());
2611 assert!(v2.dep_tracking_hash() == v3.dep_tracking_hash());
2614 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2615 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2616 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2620 fn test_codegen_options_tracking_hash() {
2621 let reference = super::basic_options();
2622 let mut opts = super::basic_options();
2624 // Make sure the changing an [UNTRACKED] option leaves the hash unchanged
2625 opts.cg.ar = Some(String::from("abc"));
2626 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2628 opts.cg.linker = Some(PathBuf::from("linker"));
2629 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2631 opts.cg.link_args = Some(vec![String::from("abc"), String::from("def")]);
2632 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2634 opts.cg.link_dead_code = true;
2635 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2637 opts.cg.rpath = true;
2638 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2640 opts.cg.extra_filename = String::from("extra-filename");
2641 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2643 opts.cg.codegen_units = Some(42);
2644 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2646 opts.cg.remark = super::SomePasses(vec![String::from("pass1"),
2647 String::from("pass2")]);
2648 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2650 opts.cg.save_temps = true;
2651 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2653 opts.cg.incremental = Some(String::from("abc"));
2654 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2657 // Make sure changing a [TRACKED] option changes the hash
2658 opts = reference.clone();
2660 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2662 opts = reference.clone();
2663 opts.cg.target_cpu = Some(String::from("abc"));
2664 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2666 opts = reference.clone();
2667 opts.cg.target_feature = String::from("all the features, all of them");
2668 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2670 opts = reference.clone();
2671 opts.cg.passes = vec![String::from("1"), String::from("2")];
2672 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2674 opts = reference.clone();
2675 opts.cg.llvm_args = vec![String::from("1"), String::from("2")];
2676 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2678 opts = reference.clone();
2679 opts.cg.overflow_checks = Some(true);
2680 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2682 opts = reference.clone();
2683 opts.cg.no_prepopulate_passes = true;
2684 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2686 opts = reference.clone();
2687 opts.cg.no_vectorize_loops = true;
2688 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2690 opts = reference.clone();
2691 opts.cg.no_vectorize_slp = true;
2692 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2694 opts = reference.clone();
2695 opts.cg.soft_float = true;
2696 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2698 opts = reference.clone();
2699 opts.cg.prefer_dynamic = true;
2700 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2702 opts = reference.clone();
2703 opts.cg.no_integrated_as = true;
2704 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2706 opts = reference.clone();
2707 opts.cg.no_redzone = Some(true);
2708 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2710 opts = reference.clone();
2711 opts.cg.relocation_model = Some(String::from("relocation model"));
2712 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2714 opts = reference.clone();
2715 opts.cg.code_model = Some(String::from("code model"));
2716 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2718 opts = reference.clone();
2719 opts.debugging_opts.tls_model = Some(String::from("tls model"));
2720 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2722 opts = reference.clone();
2723 opts.cg.metadata = vec![String::from("A"), String::from("B")];
2724 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2726 opts = reference.clone();
2727 opts.cg.debuginfo = Some(0xdeadbeef);
2728 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2730 opts = reference.clone();
2731 opts.cg.debuginfo = Some(0xba5eba11);
2732 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2734 opts = reference.clone();
2735 opts.cg.debug_assertions = Some(true);
2736 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2738 opts = reference.clone();
2739 opts.cg.inline_threshold = Some(0xf007ba11);
2740 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2742 opts = reference.clone();
2743 opts.cg.panic = Some(PanicStrategy::Abort);
2744 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2748 fn test_debugging_options_tracking_hash() {
2749 let reference = super::basic_options();
2750 let mut opts = super::basic_options();
2752 // Make sure the changing an [UNTRACKED] option leaves the hash unchanged
2753 opts.debugging_opts.verbose = true;
2754 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2755 opts.debugging_opts.time_passes = true;
2756 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2757 opts.debugging_opts.count_llvm_insns = true;
2758 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2759 opts.debugging_opts.time_llvm_passes = true;
2760 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2761 opts.debugging_opts.input_stats = true;
2762 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2763 opts.debugging_opts.trans_stats = true;
2764 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2765 opts.debugging_opts.borrowck_stats = true;
2766 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2767 opts.debugging_opts.meta_stats = true;
2768 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2769 opts.debugging_opts.print_link_args = true;
2770 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2771 opts.debugging_opts.print_llvm_passes = true;
2772 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2773 opts.debugging_opts.ast_json = true;
2774 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2775 opts.debugging_opts.ast_json_noexpand = true;
2776 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2777 opts.debugging_opts.ls = true;
2778 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2779 opts.debugging_opts.save_analysis = true;
2780 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2781 opts.debugging_opts.flowgraph_print_loans = true;
2782 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2783 opts.debugging_opts.flowgraph_print_moves = true;
2784 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2785 opts.debugging_opts.flowgraph_print_assigns = true;
2786 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2787 opts.debugging_opts.flowgraph_print_all = true;
2788 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2789 opts.debugging_opts.print_region_graph = true;
2790 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2791 opts.debugging_opts.parse_only = true;
2792 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2793 opts.debugging_opts.incremental = Some(String::from("abc"));
2794 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2795 opts.debugging_opts.dump_dep_graph = true;
2796 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2797 opts.debugging_opts.query_dep_graph = true;
2798 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2799 opts.debugging_opts.no_analysis = true;
2800 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2801 opts.debugging_opts.unstable_options = true;
2802 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2803 opts.debugging_opts.trace_macros = true;
2804 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2805 opts.debugging_opts.keep_hygiene_data = true;
2806 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2807 opts.debugging_opts.keep_ast = true;
2808 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2809 opts.debugging_opts.print_trans_items = Some(String::from("abc"));
2810 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2811 opts.debugging_opts.dump_mir = Some(String::from("abc"));
2812 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2813 opts.debugging_opts.dump_mir_dir = String::from("abc");
2814 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2815 opts.debugging_opts.dump_mir_graphviz = true;
2816 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2818 // Make sure changing a [TRACKED] option changes the hash
2819 opts = reference.clone();
2820 opts.debugging_opts.asm_comments = true;
2821 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2823 opts = reference.clone();
2824 opts.debugging_opts.no_verify = true;
2825 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2827 opts = reference.clone();
2828 opts.debugging_opts.no_landing_pads = true;
2829 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2831 opts = reference.clone();
2832 opts.debugging_opts.fewer_names = true;
2833 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2835 opts = reference.clone();
2836 opts.debugging_opts.no_trans = true;
2837 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2839 opts = reference.clone();
2840 opts.debugging_opts.treat_err_as_bug = true;
2841 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2843 opts = reference.clone();
2844 opts.debugging_opts.continue_parse_after_error = true;
2845 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2847 opts = reference.clone();
2848 opts.debugging_opts.extra_plugins = vec![String::from("plugin1"), String::from("plugin2")];
2849 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2851 opts = reference.clone();
2852 opts.debugging_opts.force_overflow_checks = Some(true);
2853 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2855 opts = reference.clone();
2856 opts.debugging_opts.enable_nonzeroing_move_hints = true;
2857 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2859 opts = reference.clone();
2860 opts.debugging_opts.show_span = Some(String::from("abc"));
2861 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2863 opts = reference.clone();
2864 opts.debugging_opts.mir_opt_level = 3;
2865 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2867 opts = reference.clone();
2868 opts.debugging_opts.relro_level = Some(RelroLevel::Full);
2869 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());