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 rustc_back::PanicStrategy;
23 use rustc_back::target::Target;
27 use syntax::ast::{self, IntTy, UintTy};
28 use syntax::parse::token;
30 use syntax::symbol::Symbol;
31 use syntax::feature_gate::UnstableFeatures;
33 use errors::{ColorConfig, FatalError, Handler};
36 use std::collections::{BTreeMap, BTreeSet};
37 use std::collections::btree_map::Iter as BTreeMapIter;
38 use std::collections::btree_map::Keys as BTreeMapKeysIter;
39 use std::collections::btree_map::Values as BTreeMapValuesIter;
42 use std::hash::Hasher;
43 use std::collections::hash_map::DefaultHasher;
44 use std::collections::HashSet;
45 use std::iter::FromIterator;
46 use std::path::PathBuf;
51 pub uint_type: UintTy,
54 #[derive(Clone, Hash)]
62 #[derive(Clone, Copy, PartialEq, Hash)]
72 #[derive(Clone, Copy, PartialEq, Hash)]
73 pub enum DebugInfoLevel {
79 #[derive(Clone, Copy, PartialEq, Eq, Hash, Debug, PartialOrd, Ord,
80 RustcEncodable, RustcDecodable)]
92 fn is_compatible_with_codegen_units_and_single_output_file(&self) -> bool {
95 OutputType::DepInfo => true,
97 OutputType::Assembly |
98 OutputType::LlvmAssembly |
100 OutputType::Metadata => false,
104 fn shorthand(&self) -> &'static str {
106 OutputType::Bitcode => "llvm-bc",
107 OutputType::Assembly => "asm",
108 OutputType::LlvmAssembly => "llvm-ir",
109 OutputType::Object => "obj",
110 OutputType::Metadata => "metadata",
111 OutputType::Exe => "link",
112 OutputType::DepInfo => "dep-info",
116 pub fn extension(&self) -> &'static str {
118 OutputType::Bitcode => "bc",
119 OutputType::Assembly => "s",
120 OutputType::LlvmAssembly => "ll",
121 OutputType::Object => "o",
122 OutputType::Metadata => "rmeta",
123 OutputType::DepInfo => "d",
124 OutputType::Exe => "",
129 #[derive(Clone, Copy, Debug, PartialEq, Eq)]
130 pub enum ErrorOutputType {
131 HumanReadable(ColorConfig),
135 impl Default for ErrorOutputType {
136 fn default() -> ErrorOutputType {
137 ErrorOutputType::HumanReadable(ColorConfig::Auto)
141 // Use tree-based collections to cheaply get a deterministic Hash implementation.
142 // DO NOT switch BTreeMap out for an unsorted container type! That would break
143 // dependency tracking for commandline arguments.
144 #[derive(Clone, Hash)]
145 pub struct OutputTypes(BTreeMap<OutputType, Option<PathBuf>>);
148 pub fn new(entries: &[(OutputType, Option<PathBuf>)]) -> OutputTypes {
149 OutputTypes(BTreeMap::from_iter(entries.iter()
150 .map(|&(k, ref v)| (k, v.clone()))))
153 pub fn get(&self, key: &OutputType) -> Option<&Option<PathBuf>> {
157 pub fn contains_key(&self, key: &OutputType) -> bool {
158 self.0.contains_key(key)
161 pub fn keys<'a>(&'a self) -> BTreeMapKeysIter<'a, OutputType, Option<PathBuf>> {
165 pub fn values<'a>(&'a self) -> BTreeMapValuesIter<'a, OutputType, Option<PathBuf>> {
169 // True if any of the output types require codegen or linking.
170 pub fn should_trans(&self) -> bool {
171 self.0.keys().any(|k| match *k {
172 OutputType::Bitcode |
173 OutputType::Assembly |
174 OutputType::LlvmAssembly |
176 OutputType::Exe => true,
177 OutputType::Metadata |
178 OutputType::DepInfo => false,
184 // Use tree-based collections to cheaply get a deterministic Hash implementation.
185 // DO NOT switch BTreeMap or BTreeSet out for an unsorted container type! That
186 // would break dependency tracking for commandline arguments.
187 #[derive(Clone, Hash)]
188 pub struct Externs(BTreeMap<String, BTreeSet<String>>);
191 pub fn new(data: BTreeMap<String, BTreeSet<String>>) -> Externs {
195 pub fn get(&self, key: &str) -> Option<&BTreeSet<String>> {
199 pub fn iter<'a>(&'a self) -> BTreeMapIter<'a, String, BTreeSet<String>> {
204 macro_rules! hash_option {
205 ($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, [UNTRACKED]) => ({});
206 ($opt_name:ident, $opt_expr:expr, $sub_hashes:expr, [TRACKED]) => ({
207 if $sub_hashes.insert(stringify!($opt_name),
208 $opt_expr as &dep_tracking::DepTrackingHash).is_some() {
209 bug!("Duplicate key in CLI DepTrackingHash: {}", stringify!($opt_name))
215 [UNTRACKED_WITH_WARNING $warn_val:expr, $warn_text:expr, $error_format:expr]) => ({
216 if *$opt_expr == $warn_val {
217 early_warn($error_format, $warn_text)
222 macro_rules! top_level_options {
223 (pub struct Options { $(
224 $opt:ident : $t:ty [$dep_tracking_marker:ident $($warn_val:expr, $warn_text:expr)*],
232 pub fn dep_tracking_hash(&self) -> u64 {
233 let mut sub_hashes = BTreeMap::new();
238 [$dep_tracking_marker $($warn_val,
240 self.error_format)*]);
242 let mut hasher = DefaultHasher::new();
243 dep_tracking::stable_hash(sub_hashes,
252 // The top-level commandline options struct
254 // For each option, one has to specify how it behaves with regard to the
255 // dependency tracking system of incremental compilation. This is done via the
256 // square-bracketed directive after the field type. The options are:
259 // A change in the given field will cause the compiler to completely clear the
260 // incremental compilation cache before proceeding.
263 // Incremental compilation is not influenced by this option.
265 // [UNTRACKED_WITH_WARNING(val, warning)]
266 // The option is incompatible with incremental compilation in some way. If it
267 // has the value `val`, the string `warning` is emitted as a warning.
269 // If you add a new option to this struct or one of the sub-structs like
270 // CodegenOptions, think about how it influences incremental compilation. If in
271 // doubt, specify [TRACKED], which is always "correct" but might lead to
272 // unnecessary re-compilation.
275 // The crate config requested for the session, which may be combined
276 // with additional crate configurations during the compile process
277 crate_types: Vec<CrateType> [TRACKED],
278 optimize: OptLevel [TRACKED],
279 // Include the debug_assertions flag into dependency tracking, since it
280 // can influence whether overflow checks are done or not.
281 debug_assertions: bool [TRACKED],
282 debuginfo: DebugInfoLevel [TRACKED],
283 lint_opts: Vec<(String, lint::Level)> [TRACKED],
284 lint_cap: Option<lint::Level> [TRACKED],
285 describe_lints: bool [UNTRACKED],
286 output_types: OutputTypes [TRACKED],
287 // FIXME(mw): We track this for now but it actually doesn't make too
288 // much sense: The search path can stay the same while the
289 // things discovered there might have changed on disk.
290 search_paths: SearchPaths [TRACKED],
291 libs: Vec<(String, Option<String>, Option<cstore::NativeLibraryKind>)> [TRACKED],
292 maybe_sysroot: Option<PathBuf> [TRACKED],
294 target_triple: String [TRACKED],
296 test: bool [TRACKED],
297 error_format: ErrorOutputType [UNTRACKED],
299 // if Some, enable incremental compilation, using the given
300 // directory to store intermediate results
301 incremental: Option<PathBuf> [UNTRACKED],
303 debugging_opts: DebuggingOptions [TRACKED],
304 prints: Vec<PrintRequest> [UNTRACKED],
305 cg: CodegenOptions [TRACKED],
306 // FIXME(mw): We track this for now but it actually doesn't make too
307 // much sense: The value of this option can stay the same
308 // while the files they refer to might have changed on disk.
309 externs: Externs [TRACKED],
310 crate_name: Option<String> [TRACKED],
311 // An optional name to use as the crate for std during std injection,
312 // written `extern crate std = "name"`. Default to "std". Used by
313 // out-of-tree drivers.
314 alt_std_name: Option<String> [TRACKED],
315 // Indicates how the compiler should treat unstable features
316 unstable_features: UnstableFeatures [TRACKED],
318 // Indicates whether this run of the compiler is actually rustdoc. This
319 // is currently just a hack and will be removed eventually, so please
320 // try to not rely on this too much.
321 actually_rustdoc: bool [TRACKED],
325 #[derive(Clone, PartialEq, Eq)]
326 pub enum PrintRequest {
340 /// Load source from file
343 /// String that is shown in place of a filename
345 /// Anonymous source string
351 pub fn filestem(&self) -> String {
353 Input::File(ref ifile) => ifile.file_stem().unwrap()
354 .to_str().unwrap().to_string(),
355 Input::Str { .. } => "rust_out".to_string(),
361 pub struct OutputFilenames {
362 pub out_directory: PathBuf,
363 pub out_filestem: String,
364 pub single_output_file: Option<PathBuf>,
366 pub outputs: OutputTypes,
369 /// Codegen unit names generated by the numbered naming scheme will contain this
370 /// marker right before the index of the codegen unit.
371 pub const NUMBERED_CODEGEN_UNIT_MARKER: &'static str = ".cgu-";
373 impl OutputFilenames {
374 pub fn path(&self, flavor: OutputType) -> PathBuf {
375 self.outputs.get(&flavor).and_then(|p| p.to_owned())
376 .or_else(|| self.single_output_file.clone())
377 .unwrap_or_else(|| self.temp_path(flavor, None))
380 /// Get the path where a compilation artifact of the given type for the
381 /// given codegen unit should be placed on disk. If codegen_unit_name is
382 /// None, a path distinct from those of any codegen unit will be generated.
383 pub fn temp_path(&self,
385 codegen_unit_name: Option<&str>)
387 let extension = flavor.extension();
388 self.temp_path_ext(extension, codegen_unit_name)
391 /// Like temp_path, but also supports things where there is no corresponding
392 /// OutputType, like no-opt-bitcode or lto-bitcode.
393 pub fn temp_path_ext(&self,
395 codegen_unit_name: Option<&str>)
397 let base = self.out_directory.join(&self.filestem());
399 let mut extension = String::new();
401 if let Some(codegen_unit_name) = codegen_unit_name {
402 if codegen_unit_name.contains(NUMBERED_CODEGEN_UNIT_MARKER) {
403 // If we use the numbered naming scheme for modules, we don't want
404 // the files to look like <crate-name><extra>.<crate-name>.<index>.<ext>
405 // but simply <crate-name><extra>.<index>.<ext>
406 let marker_offset = codegen_unit_name.rfind(NUMBERED_CODEGEN_UNIT_MARKER)
408 let index_offset = marker_offset + NUMBERED_CODEGEN_UNIT_MARKER.len();
409 extension.push_str(&codegen_unit_name[index_offset .. ]);
411 extension.push_str(codegen_unit_name);
416 if !extension.is_empty() {
417 extension.push_str(".");
420 extension.push_str(ext);
423 let path = base.with_extension(&extension[..]);
427 pub fn with_extension(&self, extension: &str) -> PathBuf {
428 self.out_directory.join(&self.filestem()).with_extension(extension)
431 pub fn filestem(&self) -> String {
432 format!("{}{}", self.out_filestem, self.extra)
436 pub fn host_triple() -> &'static str {
437 // Get the host triple out of the build environment. This ensures that our
438 // idea of the host triple is the same as for the set of libraries we've
439 // actually built. We can't just take LLVM's host triple because they
440 // normalize all ix86 architectures to i386.
442 // Instead of grabbing the host triple (for the current host), we grab (at
443 // compile time) the target triple that this rustc is built with and
444 // calling that (at runtime) the host triple.
445 (option_env!("CFG_COMPILER_HOST_TRIPLE")).
446 expect("CFG_COMPILER_HOST_TRIPLE")
449 /// Some reasonable defaults
450 pub fn basic_options() -> Options {
452 crate_types: Vec::new(),
453 optimize: OptLevel::No,
454 debuginfo: NoDebugInfo,
455 lint_opts: Vec::new(),
457 describe_lints: false,
458 output_types: OutputTypes(BTreeMap::new()),
459 search_paths: SearchPaths::new(),
461 target_triple: host_triple().to_string(),
464 debugging_opts: basic_debugging_options(),
466 cg: basic_codegen_options(),
467 error_format: ErrorOutputType::default(),
468 externs: Externs(BTreeMap::new()),
472 unstable_features: UnstableFeatures::Disallow,
473 debug_assertions: true,
474 actually_rustdoc: false,
479 /// True if there is a reason to build the dep graph.
480 pub fn build_dep_graph(&self) -> bool {
481 self.incremental.is_some() ||
482 self.debugging_opts.dump_dep_graph ||
483 self.debugging_opts.query_dep_graph
486 pub fn single_codegen_unit(&self) -> bool {
487 self.incremental.is_none() ||
488 self.cg.codegen_units == 1
492 // The type of entry function, so
493 // users can have their own entry
494 // functions that don't start a
496 #[derive(Copy, Clone, PartialEq)]
497 pub enum EntryFnType {
503 #[derive(Copy, PartialEq, PartialOrd, Clone, Ord, Eq, Hash, Debug)]
513 #[derive(Clone, Hash)]
515 SomePasses(Vec<String>),
520 pub fn is_empty(&self) -> bool {
522 SomePasses(ref v) => v.is_empty(),
528 /// Declare a macro that will define all CodegenOptions/DebuggingOptions fields and parsers all
529 /// at once. The goal of this macro is to define an interface that can be
530 /// programmatically used by the option parser in order to initialize the struct
531 /// without hardcoding field names all over the place.
533 /// The goal is to invoke this macro once with the correct fields, and then this
534 /// macro generates all necessary code. The main gotcha of this macro is the
535 /// cgsetters module which is a bunch of generated code to parse an option into
536 /// its respective field in the struct. There are a few hand-written parsers for
537 /// parsing specific types of values in this module.
538 macro_rules! options {
539 ($struct_name:ident, $setter_name:ident, $defaultfn:ident,
540 $buildfn:ident, $prefix:expr, $outputname:expr,
541 $stat:ident, $mod_desc:ident, $mod_set:ident,
542 $($opt:ident : $t:ty = (
545 [$dep_tracking_marker:ident $(($dep_warn_val:expr, $dep_warn_text:expr))*],
550 pub struct $struct_name { $(pub $opt: $t),* }
552 pub fn $defaultfn() -> $struct_name {
553 $struct_name { $($opt: $init),* }
556 pub fn $buildfn(matches: &getopts::Matches, error_format: ErrorOutputType) -> $struct_name
558 let mut op = $defaultfn();
559 for option in matches.opt_strs($prefix) {
560 let mut iter = option.splitn(2, '=');
561 let key = iter.next().unwrap();
562 let value = iter.next();
563 let option_to_lookup = key.replace("-", "_");
564 let mut found = false;
565 for &(candidate, setter, opt_type_desc, _) in $stat {
566 if option_to_lookup != candidate { continue }
567 if !setter(&mut op, value) {
568 match (value, opt_type_desc) {
569 (Some(..), None) => {
570 early_error(error_format, &format!("{} option `{}` takes no \
571 value", $outputname, key))
573 (None, Some(type_desc)) => {
574 early_error(error_format, &format!("{0} option `{1}` requires \
575 {2} ({3} {1}=<value>)",
579 (Some(value), Some(type_desc)) => {
580 early_error(error_format, &format!("incorrect value `{}` for {} \
581 option `{}` - {} was expected",
585 (None, None) => bug!()
592 early_error(error_format, &format!("unknown {} option: `{}`",
599 impl<'a> dep_tracking::DepTrackingHash for $struct_name {
601 fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType) {
602 let mut sub_hashes = BTreeMap::new();
607 [$dep_tracking_marker $($dep_warn_val,
611 dep_tracking::stable_hash(sub_hashes, hasher, error_format);
615 pub type $setter_name = fn(&mut $struct_name, v: Option<&str>) -> bool;
616 pub const $stat: &'static [(&'static str, $setter_name,
617 Option<&'static str>, &'static str)] =
618 &[ $( (stringify!($opt), $mod_set::$opt, $mod_desc::$parse, $desc) ),* ];
620 #[allow(non_upper_case_globals, dead_code)]
622 pub const parse_bool: Option<&'static str> = None;
623 pub const parse_opt_bool: Option<&'static str> =
624 Some("one of: `y`, `yes`, `on`, `n`, `no`, or `off`");
625 pub const parse_string: Option<&'static str> = Some("a string");
626 pub const parse_string_push: Option<&'static str> = Some("a string");
627 pub const parse_opt_string: Option<&'static str> = Some("a string");
628 pub const parse_list: Option<&'static str> = Some("a space-separated list of strings");
629 pub const parse_opt_list: Option<&'static str> = Some("a space-separated list of strings");
630 pub const parse_uint: Option<&'static str> = Some("a number");
631 pub const parse_passes: Option<&'static str> =
632 Some("a space-separated list of passes, or `all`");
633 pub const parse_opt_uint: Option<&'static str> =
635 pub const parse_panic_strategy: Option<&'static str> =
636 Some("either `panic` or `abort`");
637 pub const parse_sanitizer: Option<&'static str> =
638 Some("one of: `address`, `leak`, `memory` or `thread`");
643 use super::{$struct_name, Passes, SomePasses, AllPasses, Sanitizer};
644 use rustc_back::PanicStrategy;
647 pub fn $opt(cg: &mut $struct_name, v: Option<&str>) -> bool {
648 $parse(&mut cg.$opt, v)
652 fn parse_bool(slot: &mut bool, v: Option<&str>) -> bool {
655 None => { *slot = true; true }
659 fn parse_opt_bool(slot: &mut Option<bool>, v: Option<&str>) -> bool {
663 "n" | "no" | "off" => {
666 "y" | "yes" | "on" => {
669 _ => { return false; }
674 None => { *slot = Some(true); true }
678 fn parse_opt_string(slot: &mut Option<String>, v: Option<&str>) -> bool {
680 Some(s) => { *slot = Some(s.to_string()); true },
685 fn parse_string(slot: &mut String, v: Option<&str>) -> bool {
687 Some(s) => { *slot = s.to_string(); true },
692 fn parse_string_push(slot: &mut Vec<String>, v: Option<&str>) -> bool {
694 Some(s) => { slot.push(s.to_string()); true },
699 fn parse_list(slot: &mut Vec<String>, v: Option<&str>)
703 for s in s.split_whitespace() {
704 slot.push(s.to_string());
712 fn parse_opt_list(slot: &mut Option<Vec<String>>, v: Option<&str>)
716 let v = s.split_whitespace().map(|s| s.to_string()).collect();
724 fn parse_uint(slot: &mut usize, v: Option<&str>) -> bool {
725 match v.and_then(|s| s.parse().ok()) {
726 Some(i) => { *slot = i; true },
731 fn parse_opt_uint(slot: &mut Option<usize>, v: Option<&str>) -> bool {
733 Some(s) => { *slot = s.parse().ok(); slot.is_some() }
734 None => { *slot = None; true }
738 fn parse_passes(slot: &mut Passes, v: Option<&str>) -> bool {
745 let mut passes = vec![];
746 if parse_list(&mut passes, v) {
747 *slot = SomePasses(passes);
756 fn parse_panic_strategy(slot: &mut Option<PanicStrategy>, v: Option<&str>) -> bool {
758 Some("unwind") => *slot = Some(PanicStrategy::Unwind),
759 Some("abort") => *slot = Some(PanicStrategy::Abort),
765 fn parse_sanitizer(slote: &mut Option<Sanitizer>, v: Option<&str>) -> bool {
767 Some("address") => *slote = Some(Sanitizer::Address),
768 Some("leak") => *slote = Some(Sanitizer::Leak),
769 Some("memory") => *slote = Some(Sanitizer::Memory),
770 Some("thread") => *slote = Some(Sanitizer::Thread),
778 options! {CodegenOptions, CodegenSetter, basic_codegen_options,
779 build_codegen_options, "C", "codegen",
780 CG_OPTIONS, cg_type_desc, cgsetters,
781 ar: Option<String> = (None, parse_opt_string, [UNTRACKED],
782 "tool to assemble archives with"),
783 linker: Option<String> = (None, parse_opt_string, [UNTRACKED],
784 "system linker to link outputs with"),
785 link_arg: Vec<String> = (vec![], parse_string_push, [UNTRACKED],
786 "a single extra argument to pass to the linker (can be used several times)"),
787 link_args: Option<Vec<String>> = (None, parse_opt_list, [UNTRACKED],
788 "extra arguments to pass to the linker (space separated)"),
789 link_dead_code: bool = (false, parse_bool, [UNTRACKED],
790 "don't let linker strip dead code (turning it on can be used for code coverage)"),
791 lto: bool = (false, parse_bool, [TRACKED],
792 "perform LLVM link-time optimizations"),
793 target_cpu: Option<String> = (None, parse_opt_string, [TRACKED],
794 "select target processor (rustc --print target-cpus for details)"),
795 target_feature: String = ("".to_string(), parse_string, [TRACKED],
796 "target specific attributes (rustc --print target-features for details)"),
797 passes: Vec<String> = (Vec::new(), parse_list, [TRACKED],
798 "a list of extra LLVM passes to run (space separated)"),
799 llvm_args: Vec<String> = (Vec::new(), parse_list, [TRACKED],
800 "a list of arguments to pass to llvm (space separated)"),
801 save_temps: bool = (false, parse_bool, [UNTRACKED_WITH_WARNING(true,
802 "`-C save-temps` might not produce all requested temporary products \
803 when incremental compilation is enabled.")],
804 "save all temporary output files during compilation"),
805 rpath: bool = (false, parse_bool, [UNTRACKED],
806 "set rpath values in libs/exes"),
807 overflow_checks: Option<bool> = (None, parse_opt_bool, [TRACKED],
808 "use overflow checks for integer arithmetic"),
809 no_prepopulate_passes: bool = (false, parse_bool, [TRACKED],
810 "don't pre-populate the pass manager with a list of passes"),
811 no_vectorize_loops: bool = (false, parse_bool, [TRACKED],
812 "don't run the loop vectorization optimization passes"),
813 no_vectorize_slp: bool = (false, parse_bool, [TRACKED],
814 "don't run LLVM's SLP vectorization pass"),
815 soft_float: bool = (false, parse_bool, [TRACKED],
816 "use soft float ABI (*eabihf targets only)"),
817 prefer_dynamic: bool = (false, parse_bool, [TRACKED],
818 "prefer dynamic linking to static linking"),
819 no_integrated_as: bool = (false, parse_bool, [TRACKED],
820 "use an external assembler rather than LLVM's integrated one"),
821 no_redzone: Option<bool> = (None, parse_opt_bool, [TRACKED],
822 "disable the use of the redzone"),
823 relocation_model: Option<String> = (None, parse_opt_string, [TRACKED],
824 "choose the relocation model to use (rustc --print relocation-models for details)"),
825 code_model: Option<String> = (None, parse_opt_string, [TRACKED],
826 "choose the code model to use (rustc --print code-models for details)"),
827 metadata: Vec<String> = (Vec::new(), parse_list, [TRACKED],
828 "metadata to mangle symbol names with"),
829 extra_filename: String = ("".to_string(), parse_string, [UNTRACKED],
830 "extra data to put in each output filename"),
831 codegen_units: usize = (1, parse_uint, [UNTRACKED],
832 "divide crate into N units to optimize in parallel"),
833 remark: Passes = (SomePasses(Vec::new()), parse_passes, [UNTRACKED],
834 "print remarks for these optimization passes (space separated, or \"all\")"),
835 no_stack_check: bool = (false, parse_bool, [UNTRACKED],
836 "the --no-stack-check flag is deprecated and does nothing"),
837 debuginfo: Option<usize> = (None, parse_opt_uint, [TRACKED],
838 "debug info emission level, 0 = no debug info, 1 = line tables only, \
839 2 = full debug info with variable and type information"),
840 opt_level: Option<String> = (None, parse_opt_string, [TRACKED],
841 "optimize with possible levels 0-3, s, or z"),
842 debug_assertions: Option<bool> = (None, parse_opt_bool, [TRACKED],
843 "explicitly enable the cfg(debug_assertions) directive"),
844 inline_threshold: Option<usize> = (None, parse_opt_uint, [TRACKED],
845 "set the inlining threshold for"),
846 panic: Option<PanicStrategy> = (None, parse_panic_strategy,
847 [TRACKED], "panic strategy to compile crate with"),
850 options! {DebuggingOptions, DebuggingSetter, basic_debugging_options,
851 build_debugging_options, "Z", "debugging",
852 DB_OPTIONS, db_type_desc, dbsetters,
853 verbose: bool = (false, parse_bool, [UNTRACKED],
854 "in general, enable more debug printouts"),
855 time_passes: bool = (false, parse_bool, [UNTRACKED],
856 "measure time of each rustc pass"),
857 count_llvm_insns: bool = (false, parse_bool,
858 [UNTRACKED_WITH_WARNING(true,
859 "The output generated by `-Z count_llvm_insns` might not be reliable \
860 when used with incremental compilation")],
861 "count where LLVM instrs originate"),
862 time_llvm_passes: bool = (false, parse_bool, [UNTRACKED_WITH_WARNING(true,
863 "The output of `-Z time-llvm-passes` will only reflect timings of \
864 re-translated modules when used with incremental compilation" )],
865 "measure time of each LLVM pass"),
866 input_stats: bool = (false, parse_bool, [UNTRACKED],
867 "gather statistics about the input"),
868 trans_stats: bool = (false, parse_bool, [UNTRACKED_WITH_WARNING(true,
869 "The output of `-Z trans-stats` might not be accurate when incremental \
870 compilation is enabled")],
871 "gather trans statistics"),
872 asm_comments: bool = (false, parse_bool, [TRACKED],
873 "generate comments into the assembly (may change behavior)"),
874 no_verify: bool = (false, parse_bool, [TRACKED],
875 "skip LLVM verification"),
876 borrowck_stats: bool = (false, parse_bool, [UNTRACKED],
877 "gather borrowck statistics"),
878 no_landing_pads: bool = (false, parse_bool, [TRACKED],
879 "omit landing pads for unwinding"),
880 debug_llvm: bool = (false, parse_bool, [UNTRACKED],
881 "enable debug output from LLVM"),
882 meta_stats: bool = (false, parse_bool, [UNTRACKED],
883 "gather metadata statistics"),
884 print_link_args: bool = (false, parse_bool, [UNTRACKED],
885 "print the arguments passed to the linker"),
886 print_llvm_passes: bool = (false, parse_bool, [UNTRACKED],
887 "prints the llvm optimization passes being run"),
888 ast_json: bool = (false, parse_bool, [UNTRACKED],
889 "print the AST as JSON and halt"),
890 ast_json_noexpand: bool = (false, parse_bool, [UNTRACKED],
891 "print the pre-expansion AST as JSON and halt"),
892 ls: bool = (false, parse_bool, [UNTRACKED],
893 "list the symbols defined by a library crate"),
894 save_analysis: bool = (false, parse_bool, [UNTRACKED],
895 "write syntax and type analysis (in JSON format) information, in \
896 addition to normal output"),
897 save_analysis_csv: bool = (false, parse_bool, [UNTRACKED],
898 "write syntax and type analysis (in CSV format) information, in addition to normal output"),
899 save_analysis_api: bool = (false, parse_bool, [UNTRACKED],
900 "write syntax and type analysis information for opaque libraries (in JSON format), \
901 in addition to normal output"),
902 print_move_fragments: bool = (false, parse_bool, [UNTRACKED],
903 "print out move-fragment data for every fn"),
904 flowgraph_print_loans: bool = (false, parse_bool, [UNTRACKED],
905 "include loan analysis data in --unpretty flowgraph output"),
906 flowgraph_print_moves: bool = (false, parse_bool, [UNTRACKED],
907 "include move analysis data in --unpretty flowgraph output"),
908 flowgraph_print_assigns: bool = (false, parse_bool, [UNTRACKED],
909 "include assignment analysis data in --unpretty flowgraph output"),
910 flowgraph_print_all: bool = (false, parse_bool, [UNTRACKED],
911 "include all dataflow analysis data in --unpretty flowgraph output"),
912 print_region_graph: bool = (false, parse_bool, [UNTRACKED],
913 "prints region inference graph. \
914 Use with RUST_REGION_GRAPH=help for more info"),
915 parse_only: bool = (false, parse_bool, [UNTRACKED],
916 "parse only; do not compile, assemble, or link"),
917 no_trans: bool = (false, parse_bool, [TRACKED],
918 "run all passes except translation; no output"),
919 treat_err_as_bug: bool = (false, parse_bool, [TRACKED],
920 "treat all errors that occur as bugs"),
921 continue_parse_after_error: bool = (false, parse_bool, [TRACKED],
922 "attempt to recover from parse errors (experimental)"),
923 incremental: Option<String> = (None, parse_opt_string, [UNTRACKED],
924 "enable incremental compilation (experimental)"),
925 incremental_cc: bool = (false, parse_bool, [UNTRACKED],
926 "enable cross-crate incremental compilation (even more experimental)"),
927 incremental_info: bool = (false, parse_bool, [UNTRACKED],
928 "print high-level information about incremental reuse (or the lack thereof)"),
929 incremental_dump_hash: bool = (false, parse_bool, [UNTRACKED],
930 "dump hash information in textual format to stdout"),
931 dump_dep_graph: bool = (false, parse_bool, [UNTRACKED],
932 "dump the dependency graph to $RUST_DEP_GRAPH (default: /tmp/dep_graph.gv)"),
933 query_dep_graph: bool = (false, parse_bool, [UNTRACKED],
934 "enable queries of the dependency graph for regression testing"),
935 no_analysis: bool = (false, parse_bool, [UNTRACKED],
936 "parse and expand the source, but run no analysis"),
937 extra_plugins: Vec<String> = (Vec::new(), parse_list, [TRACKED],
938 "load extra plugins"),
939 unstable_options: bool = (false, parse_bool, [UNTRACKED],
940 "adds unstable command line options to rustc interface"),
941 force_overflow_checks: Option<bool> = (None, parse_opt_bool, [TRACKED],
942 "force overflow checks on or off"),
943 trace_macros: bool = (false, parse_bool, [UNTRACKED],
944 "for every macro invocation, print its name and arguments"),
945 debug_macros: bool = (false, parse_bool, [TRACKED],
946 "emit line numbers debug info inside macros"),
947 enable_nonzeroing_move_hints: bool = (false, parse_bool, [TRACKED],
948 "force nonzeroing move optimization on"),
949 keep_hygiene_data: bool = (false, parse_bool, [UNTRACKED],
950 "don't clear the hygiene data after analysis"),
951 keep_ast: bool = (false, parse_bool, [UNTRACKED],
952 "keep the AST after lowering it to HIR"),
953 show_span: Option<String> = (None, parse_opt_string, [TRACKED],
954 "show spans for compiler debugging (expr|pat|ty)"),
955 print_type_sizes: bool = (false, parse_bool, [UNTRACKED],
956 "print layout information for each type encountered"),
957 print_trans_items: Option<String> = (None, parse_opt_string, [UNTRACKED],
958 "print the result of the translation item collection pass"),
959 mir_opt_level: usize = (1, parse_uint, [TRACKED],
960 "set the MIR optimization level (0-3, default: 1)"),
961 dump_mir: Option<String> = (None, parse_opt_string, [UNTRACKED],
962 "dump MIR state at various points in translation"),
963 dump_mir_dir: Option<String> = (None, parse_opt_string, [UNTRACKED],
964 "the directory the MIR is dumped into"),
965 perf_stats: bool = (false, parse_bool, [UNTRACKED],
966 "print some performance-related statistics"),
967 hir_stats: bool = (false, parse_bool, [UNTRACKED],
968 "print some statistics about AST and HIR"),
969 mir_stats: bool = (false, parse_bool, [UNTRACKED],
970 "print some statistics about MIR"),
971 always_encode_mir: bool = (false, parse_bool, [TRACKED],
972 "encode MIR of all functions into the crate metadata"),
973 osx_rpath_install_name: bool = (false, parse_bool, [TRACKED],
974 "pass `-install_name @rpath/...` to the macOS linker"),
975 sanitizer: Option<Sanitizer> = (None, parse_sanitizer, [TRACKED],
979 pub fn default_lib_output() -> CrateType {
983 pub fn default_configuration(sess: &Session) -> ast::CrateConfig {
984 let end = &sess.target.target.target_endian;
985 let arch = &sess.target.target.arch;
986 let wordsz = &sess.target.target.target_pointer_width;
987 let os = &sess.target.target.target_os;
988 let env = &sess.target.target.target_env;
989 let vendor = &sess.target.target.target_vendor;
990 let min_atomic_width = sess.target.target.min_atomic_width();
991 let max_atomic_width = sess.target.target.max_atomic_width();
993 let mut ret = HashSet::new();
995 ret.insert((Symbol::intern("target_os"), Some(Symbol::intern(os))));
996 if let Some(ref fam) = sess.target.target.options.target_family {
997 ret.insert((Symbol::intern("target_family"), Some(Symbol::intern(fam))));
998 if fam == "windows" || fam == "unix" {
999 ret.insert((Symbol::intern(fam), None));
1002 ret.insert((Symbol::intern("target_arch"), Some(Symbol::intern(arch))));
1003 ret.insert((Symbol::intern("target_endian"), Some(Symbol::intern(end))));
1004 ret.insert((Symbol::intern("target_pointer_width"), Some(Symbol::intern(wordsz))));
1005 ret.insert((Symbol::intern("target_env"), Some(Symbol::intern(env))));
1006 ret.insert((Symbol::intern("target_vendor"), Some(Symbol::intern(vendor))));
1007 if sess.target.target.options.has_elf_tls {
1008 ret.insert((Symbol::intern("target_thread_local"), None));
1010 for &i in &[8, 16, 32, 64, 128] {
1011 if i >= min_atomic_width && i <= max_atomic_width {
1012 let s = i.to_string();
1013 ret.insert((Symbol::intern("target_has_atomic"), Some(Symbol::intern(&s))));
1015 ret.insert((Symbol::intern("target_has_atomic"), Some(Symbol::intern("ptr"))));
1019 if sess.opts.debug_assertions {
1020 ret.insert((Symbol::intern("debug_assertions"), None));
1022 if sess.opts.crate_types.contains(&CrateTypeProcMacro) {
1023 ret.insert((Symbol::intern("proc_macro"), None));
1028 pub fn build_configuration(sess: &Session,
1029 mut user_cfg: ast::CrateConfig)
1030 -> ast::CrateConfig {
1031 // Combine the configuration requested by the session (command line) with
1032 // some default and generated configuration items
1033 let default_cfg = default_configuration(sess);
1034 // If the user wants a test runner, then add the test cfg
1036 user_cfg.insert((Symbol::intern("test"), None));
1038 user_cfg.extend(default_cfg.iter().cloned());
1042 pub fn build_target_config(opts: &Options, sp: &Handler) -> Config {
1043 let target = match Target::search(&opts.target_triple) {
1046 sp.struct_fatal(&format!("Error loading target specification: {}", e))
1047 .help("Use `--print target-list` for a list of built-in targets")
1053 let (int_type, uint_type) = match &target.target_pointer_width[..] {
1054 "16" => (ast::IntTy::I16, ast::UintTy::U16),
1055 "32" => (ast::IntTy::I32, ast::UintTy::U32),
1056 "64" => (ast::IntTy::I64, ast::UintTy::U64),
1057 w => panic!(sp.fatal(&format!("target specification was invalid: \
1058 unrecognized target-pointer-width {}", w))),
1064 uint_type: uint_type,
1068 #[derive(Copy, Clone, PartialEq, Eq, Debug)]
1069 pub enum OptionStability {
1072 // FIXME: historically there were some options which were either `-Z` or
1073 // required the `-Z unstable-options` flag, which were all intended
1074 // to be unstable. Unfortunately we didn't actually gate usage of
1075 // these options on the stable compiler, so we still allow them there
1076 // today. There are some warnings printed out about this in the
1078 UnstableButNotReally,
1083 #[derive(Clone, PartialEq, Eq)]
1084 pub struct RustcOptGroup {
1085 pub opt_group: getopts::OptGroup,
1086 pub stability: OptionStability,
1089 impl RustcOptGroup {
1090 pub fn is_stable(&self) -> bool {
1091 self.stability == OptionStability::Stable
1094 pub fn stable(g: getopts::OptGroup) -> RustcOptGroup {
1095 RustcOptGroup { opt_group: g, stability: OptionStability::Stable }
1098 #[allow(dead_code)] // currently we have no "truly unstable" options
1099 pub fn unstable(g: getopts::OptGroup) -> RustcOptGroup {
1100 RustcOptGroup { opt_group: g, stability: OptionStability::Unstable }
1103 fn unstable_bnr(g: getopts::OptGroup) -> RustcOptGroup {
1106 stability: OptionStability::UnstableButNotReally,
1111 // The `opt` local module holds wrappers around the `getopts` API that
1112 // adds extra rustc-specific metadata to each option; such metadata
1113 // is exposed by . The public
1114 // functions below ending with `_u` are the functions that return
1115 // *unstable* options, i.e. options that are only enabled when the
1116 // user also passes the `-Z unstable-options` debugging flag.
1118 // The `fn opt_u` etc below are written so that we can use them
1119 // in the future; do not warn about them not being used right now.
1120 #![allow(dead_code)]
1123 use super::RustcOptGroup;
1125 pub type R = RustcOptGroup;
1126 pub type S<'a> = &'a str;
1128 fn stable(g: getopts::OptGroup) -> R { RustcOptGroup::stable(g) }
1129 fn unstable(g: getopts::OptGroup) -> R { RustcOptGroup::unstable(g) }
1130 fn unstable_bnr(g: getopts::OptGroup) -> R { RustcOptGroup::unstable_bnr(g) }
1132 pub fn opt_s(a: S, b: S, c: S, d: S) -> R {
1133 stable(getopts::optopt(a, b, c, d))
1135 pub fn multi_s(a: S, b: S, c: S, d: S) -> R {
1136 stable(getopts::optmulti(a, b, c, d))
1138 pub fn flag_s(a: S, b: S, c: S) -> R {
1139 stable(getopts::optflag(a, b, c))
1141 pub fn flagopt_s(a: S, b: S, c: S, d: S) -> R {
1142 stable(getopts::optflagopt(a, b, c, d))
1144 pub fn flagmulti_s(a: S, b: S, c: S) -> R {
1145 stable(getopts::optflagmulti(a, b, c))
1148 pub fn opt(a: S, b: S, c: S, d: S) -> R {
1149 unstable(getopts::optopt(a, b, c, d))
1151 pub fn multi(a: S, b: S, c: S, d: S) -> R {
1152 unstable(getopts::optmulti(a, b, c, d))
1154 pub fn flag(a: S, b: S, c: S) -> R {
1155 unstable(getopts::optflag(a, b, c))
1157 pub fn flagopt(a: S, b: S, c: S, d: S) -> R {
1158 unstable(getopts::optflagopt(a, b, c, d))
1160 pub fn flagmulti(a: S, b: S, c: S) -> R {
1161 unstable(getopts::optflagmulti(a, b, c))
1164 // Do not use these functions for any new options added to the compiler, all
1165 // new options should use the `*_u` variants above to be truly unstable.
1166 pub fn opt_ubnr(a: S, b: S, c: S, d: S) -> R {
1167 unstable_bnr(getopts::optopt(a, b, c, d))
1169 pub fn multi_ubnr(a: S, b: S, c: S, d: S) -> R {
1170 unstable_bnr(getopts::optmulti(a, b, c, d))
1172 pub fn flag_ubnr(a: S, b: S, c: S) -> R {
1173 unstable_bnr(getopts::optflag(a, b, c))
1175 pub fn flagopt_ubnr(a: S, b: S, c: S, d: S) -> R {
1176 unstable_bnr(getopts::optflagopt(a, b, c, d))
1178 pub fn flagmulti_ubnr(a: S, b: S, c: S) -> R {
1179 unstable_bnr(getopts::optflagmulti(a, b, c))
1183 /// Returns the "short" subset of the rustc command line options,
1184 /// including metadata for each option, such as whether the option is
1185 /// part of the stable long-term interface for rustc.
1186 pub fn rustc_short_optgroups() -> Vec<RustcOptGroup> {
1187 let mut print_opts = vec!["crate-name", "file-names", "sysroot", "cfg",
1188 "target-list", "target-cpus", "target-features",
1189 "relocation-models", "code-models"];
1190 if nightly_options::is_nightly_build() {
1191 print_opts.push("target-spec-json");
1195 opt::flag_s("h", "help", "Display this message"),
1196 opt::multi_s("", "cfg", "Configure the compilation environment", "SPEC"),
1197 opt::multi_s("L", "", "Add a directory to the library search path. The
1198 optional KIND can be one of dependency, crate, native,
1199 framework or all (the default).", "[KIND=]PATH"),
1200 opt::multi_s("l", "", "Link the generated crate(s) to the specified native
1201 library NAME. The optional KIND can be one of
1202 static, dylib, or framework. If omitted, dylib is
1203 assumed.", "[KIND=]NAME"),
1204 opt::multi_s("", "crate-type", "Comma separated list of types of crates
1205 for the compiler to emit",
1206 "[bin|lib|rlib|dylib|cdylib|staticlib|proc-macro]"),
1207 opt::opt_s("", "crate-name", "Specify the name of the crate being built",
1209 opt::multi_s("", "emit", "Comma separated list of types of output for \
1210 the compiler to emit",
1211 "[asm|llvm-bc|llvm-ir|obj|metadata|link|dep-info]"),
1212 opt::multi_s("", "print", "Comma separated list of compiler information to \
1213 print on stdout", &format!("[{}]",
1214 &print_opts.join("|"))),
1215 opt::flagmulti_s("g", "", "Equivalent to -C debuginfo=2"),
1216 opt::flagmulti_s("O", "", "Equivalent to -C opt-level=2"),
1217 opt::opt_s("o", "", "Write output to <filename>", "FILENAME"),
1218 opt::opt_s("", "out-dir", "Write output to compiler-chosen filename \
1220 opt::opt_s("", "explain", "Provide a detailed explanation of an error \
1222 opt::flag_s("", "test", "Build a test harness"),
1223 opt::opt_s("", "target", "Target triple for which the code is compiled", "TARGET"),
1224 opt::multi_s("W", "warn", "Set lint warnings", "OPT"),
1225 opt::multi_s("A", "allow", "Set lint allowed", "OPT"),
1226 opt::multi_s("D", "deny", "Set lint denied", "OPT"),
1227 opt::multi_s("F", "forbid", "Set lint forbidden", "OPT"),
1228 opt::multi_s("", "cap-lints", "Set the most restrictive lint level. \
1229 More restrictive lints are capped at this \
1231 opt::multi_s("C", "codegen", "Set a codegen option", "OPT[=VALUE]"),
1232 opt::flag_s("V", "version", "Print version info and exit"),
1233 opt::flag_s("v", "verbose", "Use verbose output"),
1237 /// Returns all rustc command line options, including metadata for
1238 /// each option, such as whether the option is part of the stable
1239 /// long-term interface for rustc.
1240 pub fn rustc_optgroups() -> Vec<RustcOptGroup> {
1241 let mut opts = rustc_short_optgroups();
1242 opts.extend_from_slice(&[
1243 opt::multi_s("", "extern", "Specify where an external rust library is located",
1245 opt::opt_s("", "sysroot", "Override the system root", "PATH"),
1246 opt::multi_ubnr("Z", "", "Set internal debugging options", "FLAG"),
1247 opt::opt_s("", "error-format",
1248 "How errors and other messages are produced",
1250 opt::opt_s("", "color", "Configure coloring of output:
1251 auto = colorize, if output goes to a tty (default);
1252 always = always colorize output;
1253 never = never colorize output", "auto|always|never"),
1255 opt::flagopt_ubnr("", "pretty",
1256 "Pretty-print the input instead of compiling;
1257 valid types are: `normal` (un-annotated source),
1258 `expanded` (crates expanded), or
1259 `expanded,identified` (fully parenthesized, AST nodes with IDs).",
1261 opt::flagopt_ubnr("", "unpretty",
1262 "Present the input source, unstable (and less-pretty) variants;
1263 valid types are any of the types for `--pretty`, as well as:
1264 `flowgraph=<nodeid>` (graphviz formatted flowgraph for node),
1265 `everybody_loops` (all function bodies replaced with `loop {}`),
1266 `hir` (the HIR), `hir,identified`, or
1267 `hir,typed` (HIR with types for each node).",
1270 // new options here should **not** use the `_ubnr` functions, all new
1271 // unstable options should use the short variants to indicate that they
1272 // are truly unstable. All `_ubnr` flags are just that way because they
1273 // were so historically.
1275 // You may also wish to keep this comment at the bottom of this list to
1276 // ensure that others see it.
1281 // Convert strings provided as --cfg [cfgspec] into a crate_cfg
1282 pub fn parse_cfgspecs(cfgspecs: Vec<String> ) -> ast::CrateConfig {
1283 cfgspecs.into_iter().map(|s| {
1284 let sess = parse::ParseSess::new();
1286 parse::new_parser_from_source_str(&sess, "cfgspec".to_string(), s.to_string());
1288 let meta_item = panictry!(parser.parse_meta_item());
1290 if parser.token != token::Eof {
1291 early_error(ErrorOutputType::default(), &format!("invalid --cfg argument: {}", s))
1292 } else if meta_item.is_meta_item_list() {
1294 format!("invalid predicate in --cfg command line argument: `{}`", meta_item.name());
1295 early_error(ErrorOutputType::default(), &msg)
1298 (meta_item.name(), meta_item.value_str())
1299 }).collect::<ast::CrateConfig>()
1302 pub fn build_session_options_and_crate_config(matches: &getopts::Matches)
1303 -> (Options, ast::CrateConfig) {
1304 let color = match matches.opt_str("color").as_ref().map(|s| &s[..]) {
1305 Some("auto") => ColorConfig::Auto,
1306 Some("always") => ColorConfig::Always,
1307 Some("never") => ColorConfig::Never,
1309 None => ColorConfig::Auto,
1312 early_error(ErrorOutputType::default(), &format!("argument for --color must be auto, \
1313 always or never (instead was `{}`)",
1318 // We need the opts_present check because the driver will send us Matches
1319 // with only stable options if no unstable options are used. Since error-format
1320 // is unstable, it will not be present. We have to use opts_present not
1321 // opt_present because the latter will panic.
1322 let error_format = if matches.opts_present(&["error-format".to_owned()]) {
1323 match matches.opt_str("error-format").as_ref().map(|s| &s[..]) {
1324 Some("human") => ErrorOutputType::HumanReadable(color),
1325 Some("json") => ErrorOutputType::Json,
1327 None => ErrorOutputType::HumanReadable(color),
1330 early_error(ErrorOutputType::HumanReadable(color),
1331 &format!("argument for --error-format must be human or json (instead \
1337 ErrorOutputType::HumanReadable(color)
1340 let unparsed_crate_types = matches.opt_strs("crate-type");
1341 let (crate_types, emit_metadata) = parse_crate_types_from_list(unparsed_crate_types)
1342 .unwrap_or_else(|e| early_error(error_format, &e[..]));
1344 let mut lint_opts = vec![];
1345 let mut describe_lints = false;
1347 for &level in &[lint::Allow, lint::Warn, lint::Deny, lint::Forbid] {
1348 for lint_name in matches.opt_strs(level.as_str()) {
1349 if lint_name == "help" {
1350 describe_lints = true;
1352 lint_opts.push((lint_name.replace("-", "_"), level));
1357 let lint_cap = matches.opt_str("cap-lints").map(|cap| {
1358 lint::Level::from_str(&cap).unwrap_or_else(|| {
1359 early_error(error_format, &format!("unknown lint level: `{}`", cap))
1363 let debugging_opts = build_debugging_options(matches, error_format);
1365 let mut output_types = BTreeMap::new();
1366 if !debugging_opts.parse_only {
1367 for list in matches.opt_strs("emit") {
1368 for output_type in list.split(',') {
1369 let mut parts = output_type.splitn(2, '=');
1370 let output_type = match parts.next().unwrap() {
1371 "asm" => OutputType::Assembly,
1372 "llvm-ir" => OutputType::LlvmAssembly,
1373 "llvm-bc" => OutputType::Bitcode,
1374 "obj" => OutputType::Object,
1375 "metadata" => OutputType::Metadata,
1376 "link" => OutputType::Exe,
1377 "dep-info" => OutputType::DepInfo,
1379 early_error(error_format, &format!("unknown emission type: `{}`",
1383 let path = parts.next().map(PathBuf::from);
1384 output_types.insert(output_type, path);
1389 output_types.insert(OutputType::Metadata, None);
1390 } else if output_types.is_empty() {
1391 output_types.insert(OutputType::Exe, None);
1394 let mut cg = build_codegen_options(matches, error_format);
1396 // Issue #30063: if user requests llvm-related output to one
1397 // particular path, disable codegen-units.
1398 if matches.opt_present("o") && cg.codegen_units != 1 {
1399 let incompatible: Vec<_> = output_types.iter()
1400 .map(|ot_path| ot_path.0)
1402 !ot.is_compatible_with_codegen_units_and_single_output_file()
1404 if !incompatible.is_empty() {
1405 for ot in &incompatible {
1406 early_warn(error_format, &format!("--emit={} with -o incompatible with \
1407 -C codegen-units=N for N > 1",
1410 early_warn(error_format, "resetting to default -C codegen-units=1");
1411 cg.codegen_units = 1;
1415 if cg.codegen_units < 1 {
1416 early_error(error_format, "Value for codegen units must be a positive nonzero integer");
1419 let mut prints = Vec::<PrintRequest>::new();
1420 if cg.target_cpu.as_ref().map_or(false, |s| s == "help") {
1421 prints.push(PrintRequest::TargetCPUs);
1422 cg.target_cpu = None;
1424 if cg.target_feature == "help" {
1425 prints.push(PrintRequest::TargetFeatures);
1426 cg.target_feature = "".to_string();
1428 if cg.relocation_model.as_ref().map_or(false, |s| s == "help") {
1429 prints.push(PrintRequest::RelocationModels);
1430 cg.relocation_model = None;
1432 if cg.code_model.as_ref().map_or(false, |s| s == "help") {
1433 prints.push(PrintRequest::CodeModels);
1434 cg.code_model = None;
1439 let sysroot_opt = matches.opt_str("sysroot").map(|m| PathBuf::from(&m));
1440 let target = matches.opt_str("target").unwrap_or(
1441 host_triple().to_string());
1443 if matches.opt_present("O") {
1444 if cg.opt_level.is_some() {
1445 early_error(error_format, "-O and -C opt-level both provided");
1449 match (cg.opt_level.as_ref().map(String::as_ref),
1450 nightly_options::is_nightly_build()) {
1451 (None, _) => OptLevel::No,
1452 (Some("0"), _) => OptLevel::No,
1453 (Some("1"), _) => OptLevel::Less,
1454 (Some("2"), _) => OptLevel::Default,
1455 (Some("3"), _) => OptLevel::Aggressive,
1456 (Some("s"), true) => OptLevel::Size,
1457 (Some("z"), true) => OptLevel::SizeMin,
1458 (Some("s"), false) | (Some("z"), false) => {
1459 early_error(error_format, &format!("the optimizations s or z are only \
1460 accepted on the nightly compiler"));
1463 early_error(error_format, &format!("optimization level needs to be \
1464 between 0-3 (instead was `{}`)",
1470 let debug_assertions = cg.debug_assertions.unwrap_or(opt_level == OptLevel::No);
1471 let debuginfo = if matches.opt_present("g") {
1472 if cg.debuginfo.is_some() {
1473 early_error(error_format, "-g and -C debuginfo both provided");
1477 match cg.debuginfo {
1478 None | Some(0) => NoDebugInfo,
1479 Some(1) => LimitedDebugInfo,
1480 Some(2) => FullDebugInfo,
1482 early_error(error_format, &format!("debug info level needs to be between \
1483 0-2 (instead was `{}`)",
1489 let mut search_paths = SearchPaths::new();
1490 for s in &matches.opt_strs("L") {
1491 search_paths.add_path(&s[..], error_format);
1494 let libs = matches.opt_strs("l").into_iter().map(|s| {
1495 // Parse string of the form "[KIND=]lib[:new_name]",
1496 // where KIND is one of "dylib", "framework", "static".
1497 let mut parts = s.splitn(2, '=');
1498 let kind = parts.next().unwrap();
1499 let (name, kind) = match (parts.next(), kind) {
1500 (None, name) => (name, None),
1501 (Some(name), "dylib") => (name, Some(cstore::NativeUnknown)),
1502 (Some(name), "framework") => (name, Some(cstore::NativeFramework)),
1503 (Some(name), "static") => (name, Some(cstore::NativeStatic)),
1504 (Some(name), "static-nobundle") => (name, Some(cstore::NativeStaticNobundle)),
1506 early_error(error_format, &format!("unknown library kind `{}`, expected \
1507 one of dylib, framework, or static",
1511 if kind == Some(cstore::NativeStaticNobundle) && !nightly_options::is_nightly_build() {
1512 early_error(error_format, &format!("the library kind 'static-nobundle' is only \
1513 accepted on the nightly compiler"));
1515 let mut name_parts = name.splitn(2, ':');
1516 let name = name_parts.next().unwrap();
1517 let new_name = name_parts.next();
1518 (name.to_string(), new_name.map(|n| n.to_string()), kind)
1521 let cfg = parse_cfgspecs(matches.opt_strs("cfg"));
1522 let test = matches.opt_present("test");
1524 prints.extend(matches.opt_strs("print").into_iter().map(|s| {
1526 "crate-name" => PrintRequest::CrateName,
1527 "file-names" => PrintRequest::FileNames,
1528 "sysroot" => PrintRequest::Sysroot,
1529 "cfg" => PrintRequest::Cfg,
1530 "target-list" => PrintRequest::TargetList,
1531 "target-cpus" => PrintRequest::TargetCPUs,
1532 "target-features" => PrintRequest::TargetFeatures,
1533 "relocation-models" => PrintRequest::RelocationModels,
1534 "code-models" => PrintRequest::CodeModels,
1535 "target-spec-json" if nightly_options::is_unstable_enabled(matches)
1536 => PrintRequest::TargetSpec,
1538 early_error(error_format, &format!("unknown print request `{}`", req))
1543 if !cg.remark.is_empty() && debuginfo == NoDebugInfo {
1544 early_warn(error_format, "-C remark will not show source locations without \
1548 let mut externs = BTreeMap::new();
1549 for arg in &matches.opt_strs("extern") {
1550 let mut parts = arg.splitn(2, '=');
1551 let name = match parts.next() {
1553 None => early_error(error_format, "--extern value must not be empty"),
1555 let location = match parts.next() {
1557 None => early_error(error_format, "--extern value must be of the format `foo=bar`"),
1560 externs.entry(name.to_string())
1561 .or_insert_with(BTreeSet::new)
1562 .insert(location.to_string());
1565 let crate_name = matches.opt_str("crate-name");
1567 let incremental = debugging_opts.incremental.as_ref().map(|m| PathBuf::from(m));
1570 crate_types: crate_types,
1571 optimize: opt_level,
1572 debuginfo: debuginfo,
1573 lint_opts: lint_opts,
1575 describe_lints: describe_lints,
1576 output_types: OutputTypes(output_types),
1577 search_paths: search_paths,
1578 maybe_sysroot: sysroot_opt,
1579 target_triple: target,
1581 incremental: incremental,
1582 debugging_opts: debugging_opts,
1585 error_format: error_format,
1586 externs: Externs(externs),
1587 crate_name: crate_name,
1590 unstable_features: UnstableFeatures::from_environment(),
1591 debug_assertions: debug_assertions,
1592 actually_rustdoc: false,
1597 pub fn parse_crate_types_from_list(list_list: Vec<String>)
1598 -> Result<(Vec<CrateType>, bool), String> {
1599 let mut crate_types: Vec<CrateType> = Vec::new();
1600 let mut emit_metadata = false;
1601 for unparsed_crate_type in &list_list {
1602 for part in unparsed_crate_type.split(',') {
1603 let new_part = match part {
1604 "lib" => default_lib_output(),
1605 "rlib" => CrateTypeRlib,
1606 "staticlib" => CrateTypeStaticlib,
1607 "dylib" => CrateTypeDylib,
1608 "cdylib" => CrateTypeCdylib,
1609 "bin" => CrateTypeExecutable,
1610 "proc-macro" => CrateTypeProcMacro,
1611 // FIXME(#38640) remove this when Cargo is fixed.
1613 early_warn(ErrorOutputType::default(), "--crate-type=metadata is deprecated, \
1614 prefer --emit=metadata");
1615 emit_metadata = true;
1619 return Err(format!("unknown crate type: `{}`",
1623 if !crate_types.contains(&new_part) {
1624 crate_types.push(new_part)
1629 return Ok((crate_types, emit_metadata));
1632 pub mod nightly_options {
1634 use syntax::feature_gate::UnstableFeatures;
1635 use super::{ErrorOutputType, OptionStability, RustcOptGroup};
1636 use session::{early_error, early_warn};
1638 pub fn is_unstable_enabled(matches: &getopts::Matches) -> bool {
1639 is_nightly_build() && matches.opt_strs("Z").iter().any(|x| *x == "unstable-options")
1642 pub fn is_nightly_build() -> bool {
1643 UnstableFeatures::from_environment().is_nightly_build()
1646 pub fn check_nightly_options(matches: &getopts::Matches, flags: &[RustcOptGroup]) {
1647 let has_z_unstable_option = matches.opt_strs("Z").iter().any(|x| *x == "unstable-options");
1648 let really_allows_unstable_options = UnstableFeatures::from_environment()
1649 .is_nightly_build();
1651 for opt in flags.iter() {
1652 if opt.stability == OptionStability::Stable {
1655 let opt_name = if opt.opt_group.long_name.is_empty() {
1656 &opt.opt_group.short_name
1658 &opt.opt_group.long_name
1660 if !matches.opt_present(opt_name) {
1663 if opt_name != "Z" && !has_z_unstable_option {
1664 early_error(ErrorOutputType::default(),
1665 &format!("the `-Z unstable-options` flag must also be passed to enable \
1669 if really_allows_unstable_options {
1672 match opt.stability {
1673 OptionStability::Unstable => {
1674 let msg = format!("the option `{}` is only accepted on the \
1675 nightly compiler", opt_name);
1676 early_error(ErrorOutputType::default(), &msg);
1678 OptionStability::UnstableButNotReally => {
1679 let msg = format!("the option `{}` is unstable and should \
1680 only be used on the nightly compiler, but \
1681 it is currently accepted for backwards \
1682 compatibility; this will soon change, \
1683 see issue #31847 for more details",
1685 early_warn(ErrorOutputType::default(), &msg);
1687 OptionStability::Stable => {}
1693 impl fmt::Display for CrateType {
1694 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
1696 CrateTypeExecutable => "bin".fmt(f),
1697 CrateTypeDylib => "dylib".fmt(f),
1698 CrateTypeRlib => "rlib".fmt(f),
1699 CrateTypeStaticlib => "staticlib".fmt(f),
1700 CrateTypeCdylib => "cdylib".fmt(f),
1701 CrateTypeProcMacro => "proc-macro".fmt(f),
1706 /// Commandline arguments passed to the compiler have to be incorporated with
1707 /// the dependency tracking system for incremental compilation. This module
1708 /// provides some utilities to make this more convenient.
1710 /// The values of all commandline arguments that are relevant for dependency
1711 /// tracking are hashed into a single value that determines whether the
1712 /// incremental compilation cache can be re-used or not. This hashing is done
1713 /// via the DepTrackingHash trait defined below, since the standard Hash
1714 /// implementation might not be suitable (e.g. arguments are stored in a Vec,
1715 /// the hash of which is order dependent, but we might not want the order of
1716 /// arguments to make a difference for the hash).
1718 /// However, since the value provided by Hash::hash often *is* suitable,
1719 /// especially for primitive types, there is the
1720 /// impl_dep_tracking_hash_via_hash!() macro that allows to simply reuse the
1721 /// Hash implementation for DepTrackingHash. It's important though that
1722 /// we have an opt-in scheme here, so one is hopefully forced to think about
1723 /// how the hash should be calculated when adding a new commandline argument.
1727 use session::search_paths::{PathKind, SearchPaths};
1728 use std::collections::BTreeMap;
1729 use std::hash::Hash;
1730 use std::path::PathBuf;
1731 use std::collections::hash_map::DefaultHasher;
1732 use super::{Passes, CrateType, OptLevel, DebugInfoLevel,
1733 OutputTypes, Externs, ErrorOutputType, Sanitizer};
1734 use syntax::feature_gate::UnstableFeatures;
1735 use rustc_back::PanicStrategy;
1737 pub trait DepTrackingHash {
1738 fn hash(&self, &mut DefaultHasher, ErrorOutputType);
1741 macro_rules! impl_dep_tracking_hash_via_hash {
1743 impl DepTrackingHash for $t {
1744 fn hash(&self, hasher: &mut DefaultHasher, _: ErrorOutputType) {
1745 Hash::hash(self, hasher);
1751 macro_rules! impl_dep_tracking_hash_for_sortable_vec_of {
1753 impl DepTrackingHash for Vec<$t> {
1754 fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType) {
1755 let mut elems: Vec<&$t> = self.iter().collect();
1757 Hash::hash(&elems.len(), hasher);
1758 for (index, elem) in elems.iter().enumerate() {
1759 Hash::hash(&index, hasher);
1760 DepTrackingHash::hash(*elem, hasher, error_format);
1767 impl_dep_tracking_hash_via_hash!(bool);
1768 impl_dep_tracking_hash_via_hash!(usize);
1769 impl_dep_tracking_hash_via_hash!(String);
1770 impl_dep_tracking_hash_via_hash!(lint::Level);
1771 impl_dep_tracking_hash_via_hash!(Option<bool>);
1772 impl_dep_tracking_hash_via_hash!(Option<usize>);
1773 impl_dep_tracking_hash_via_hash!(Option<String>);
1774 impl_dep_tracking_hash_via_hash!(Option<PanicStrategy>);
1775 impl_dep_tracking_hash_via_hash!(Option<lint::Level>);
1776 impl_dep_tracking_hash_via_hash!(Option<PathBuf>);
1777 impl_dep_tracking_hash_via_hash!(Option<cstore::NativeLibraryKind>);
1778 impl_dep_tracking_hash_via_hash!(CrateType);
1779 impl_dep_tracking_hash_via_hash!(PanicStrategy);
1780 impl_dep_tracking_hash_via_hash!(Passes);
1781 impl_dep_tracking_hash_via_hash!(OptLevel);
1782 impl_dep_tracking_hash_via_hash!(DebugInfoLevel);
1783 impl_dep_tracking_hash_via_hash!(UnstableFeatures);
1784 impl_dep_tracking_hash_via_hash!(Externs);
1785 impl_dep_tracking_hash_via_hash!(OutputTypes);
1786 impl_dep_tracking_hash_via_hash!(cstore::NativeLibraryKind);
1787 impl_dep_tracking_hash_via_hash!(Sanitizer);
1788 impl_dep_tracking_hash_via_hash!(Option<Sanitizer>);
1790 impl_dep_tracking_hash_for_sortable_vec_of!(String);
1791 impl_dep_tracking_hash_for_sortable_vec_of!(CrateType);
1792 impl_dep_tracking_hash_for_sortable_vec_of!((String, lint::Level));
1793 impl_dep_tracking_hash_for_sortable_vec_of!((String, Option<String>,
1794 Option<cstore::NativeLibraryKind>));
1795 impl DepTrackingHash for SearchPaths {
1796 fn hash(&self, hasher: &mut DefaultHasher, _: ErrorOutputType) {
1797 let mut elems: Vec<_> = self
1798 .iter(PathKind::All)
1801 Hash::hash(&elems, hasher);
1805 impl<T1, T2> DepTrackingHash for (T1, T2)
1806 where T1: DepTrackingHash,
1809 fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType) {
1810 Hash::hash(&0, hasher);
1811 DepTrackingHash::hash(&self.0, hasher, error_format);
1812 Hash::hash(&1, hasher);
1813 DepTrackingHash::hash(&self.1, hasher, error_format);
1817 impl<T1, T2, T3> DepTrackingHash for (T1, T2, T3)
1818 where T1: DepTrackingHash,
1819 T2: DepTrackingHash,
1822 fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType) {
1823 Hash::hash(&0, hasher);
1824 DepTrackingHash::hash(&self.0, hasher, error_format);
1825 Hash::hash(&1, hasher);
1826 DepTrackingHash::hash(&self.1, hasher, error_format);
1827 Hash::hash(&2, hasher);
1828 DepTrackingHash::hash(&self.2, hasher, error_format);
1832 // This is a stable hash because BTreeMap is a sorted container
1833 pub fn stable_hash(sub_hashes: BTreeMap<&'static str, &DepTrackingHash>,
1834 hasher: &mut DefaultHasher,
1835 error_format: ErrorOutputType) {
1836 for (key, sub_hash) in sub_hashes {
1837 // Using Hash::hash() instead of DepTrackingHash::hash() is fine for
1838 // the keys, as they are just plain strings
1839 Hash::hash(&key.len(), hasher);
1840 Hash::hash(key, hasher);
1841 sub_hash.hash(hasher, error_format);
1848 use dep_graph::DepGraph;
1850 use getopts::{getopts, OptGroup};
1852 use middle::cstore::{self, DummyCrateStore};
1853 use session::config::{build_configuration, build_session_options_and_crate_config};
1854 use session::build_session;
1855 use std::collections::{BTreeMap, BTreeSet};
1856 use std::iter::FromIterator;
1857 use std::path::PathBuf;
1859 use super::{OutputType, OutputTypes, Externs};
1860 use rustc_back::PanicStrategy;
1861 use syntax::symbol::Symbol;
1863 fn optgroups() -> Vec<OptGroup> {
1864 super::rustc_optgroups().into_iter()
1865 .map(|a| a.opt_group)
1869 fn mk_map<K: Ord, V>(entries: Vec<(K, V)>) -> BTreeMap<K, V> {
1870 BTreeMap::from_iter(entries.into_iter())
1873 fn mk_set<V: Ord>(entries: Vec<V>) -> BTreeSet<V> {
1874 BTreeSet::from_iter(entries.into_iter())
1877 // When the user supplies --test we should implicitly supply --cfg test
1879 fn test_switch_implies_cfg_test() {
1880 let dep_graph = DepGraph::new(false);
1882 &match getopts(&["--test".to_string()], &optgroups()) {
1884 Err(f) => panic!("test_switch_implies_cfg_test: {}", f)
1886 let registry = errors::registry::Registry::new(&[]);
1887 let (sessopts, cfg) = build_session_options_and_crate_config(matches);
1888 let sess = build_session(sessopts, &dep_graph, None, registry, Rc::new(DummyCrateStore));
1889 let cfg = build_configuration(&sess, cfg);
1890 assert!(cfg.contains(&(Symbol::intern("test"), None)));
1893 // When the user supplies --test and --cfg test, don't implicitly add
1894 // another --cfg test
1896 fn test_switch_implies_cfg_test_unless_cfg_test() {
1897 let dep_graph = DepGraph::new(false);
1899 &match getopts(&["--test".to_string(), "--cfg=test".to_string()],
1903 panic!("test_switch_implies_cfg_test_unless_cfg_test: {}", f)
1906 let registry = errors::registry::Registry::new(&[]);
1907 let (sessopts, cfg) = build_session_options_and_crate_config(matches);
1908 let sess = build_session(sessopts, &dep_graph, None, registry,
1909 Rc::new(DummyCrateStore));
1910 let cfg = build_configuration(&sess, cfg);
1911 let mut test_items = cfg.iter().filter(|&&(name, _)| name == "test");
1912 assert!(test_items.next().is_some());
1913 assert!(test_items.next().is_none());
1917 fn test_can_print_warnings() {
1918 let dep_graph = DepGraph::new(false);
1920 let matches = getopts(&[
1921 "-Awarnings".to_string()
1922 ], &optgroups()).unwrap();
1923 let registry = errors::registry::Registry::new(&[]);
1924 let (sessopts, _) = build_session_options_and_crate_config(&matches);
1925 let sess = build_session(sessopts, &dep_graph, None, registry,
1926 Rc::new(DummyCrateStore));
1927 assert!(!sess.diagnostic().can_emit_warnings);
1931 let matches = getopts(&[
1932 "-Awarnings".to_string(),
1933 "-Dwarnings".to_string()
1934 ], &optgroups()).unwrap();
1935 let registry = errors::registry::Registry::new(&[]);
1936 let (sessopts, _) = build_session_options_and_crate_config(&matches);
1937 let sess = build_session(sessopts, &dep_graph, None, registry,
1938 Rc::new(DummyCrateStore));
1939 assert!(sess.diagnostic().can_emit_warnings);
1943 let matches = getopts(&[
1944 "-Adead_code".to_string()
1945 ], &optgroups()).unwrap();
1946 let registry = errors::registry::Registry::new(&[]);
1947 let (sessopts, _) = build_session_options_and_crate_config(&matches);
1948 let sess = build_session(sessopts, &dep_graph, None, registry,
1949 Rc::new(DummyCrateStore));
1950 assert!(sess.diagnostic().can_emit_warnings);
1955 fn test_output_types_tracking_hash_different_paths() {
1956 let mut v1 = super::basic_options();
1957 let mut v2 = super::basic_options();
1958 let mut v3 = super::basic_options();
1960 v1.output_types = OutputTypes::new(&[(OutputType::Exe,
1961 Some(PathBuf::from("./some/thing")))]);
1962 v2.output_types = OutputTypes::new(&[(OutputType::Exe,
1963 Some(PathBuf::from("/some/thing")))]);
1964 v3.output_types = OutputTypes::new(&[(OutputType::Exe, None)]);
1966 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
1967 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
1968 assert!(v2.dep_tracking_hash() != v3.dep_tracking_hash());
1971 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
1972 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
1973 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
1977 fn test_output_types_tracking_hash_different_construction_order() {
1978 let mut v1 = super::basic_options();
1979 let mut v2 = super::basic_options();
1981 v1.output_types = OutputTypes::new(&[
1982 (OutputType::Exe, Some(PathBuf::from("./some/thing"))),
1983 (OutputType::Bitcode, Some(PathBuf::from("./some/thing.bc"))),
1986 v2.output_types = OutputTypes::new(&[
1987 (OutputType::Bitcode, Some(PathBuf::from("./some/thing.bc"))),
1988 (OutputType::Exe, Some(PathBuf::from("./some/thing"))),
1991 assert_eq!(v1.dep_tracking_hash(), v2.dep_tracking_hash());
1994 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
1998 fn test_externs_tracking_hash_different_values() {
1999 let mut v1 = super::basic_options();
2000 let mut v2 = super::basic_options();
2001 let mut v3 = super::basic_options();
2003 v1.externs = Externs::new(mk_map(vec![
2004 (String::from("a"), mk_set(vec![String::from("b"),
2005 String::from("c")])),
2006 (String::from("d"), mk_set(vec![String::from("e"),
2007 String::from("f")])),
2010 v2.externs = Externs::new(mk_map(vec![
2011 (String::from("a"), mk_set(vec![String::from("b"),
2012 String::from("c")])),
2013 (String::from("X"), mk_set(vec![String::from("e"),
2014 String::from("f")])),
2017 v3.externs = Externs::new(mk_map(vec![
2018 (String::from("a"), mk_set(vec![String::from("b"),
2019 String::from("c")])),
2020 (String::from("d"), mk_set(vec![String::from("X"),
2021 String::from("f")])),
2024 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
2025 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
2026 assert!(v2.dep_tracking_hash() != v3.dep_tracking_hash());
2029 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2030 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2031 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2035 fn test_externs_tracking_hash_different_construction_order() {
2036 let mut v1 = super::basic_options();
2037 let mut v2 = super::basic_options();
2038 let mut v3 = super::basic_options();
2040 v1.externs = Externs::new(mk_map(vec![
2041 (String::from("a"), mk_set(vec![String::from("b"),
2042 String::from("c")])),
2043 (String::from("d"), mk_set(vec![String::from("e"),
2044 String::from("f")])),
2047 v2.externs = Externs::new(mk_map(vec![
2048 (String::from("d"), mk_set(vec![String::from("e"),
2049 String::from("f")])),
2050 (String::from("a"), mk_set(vec![String::from("b"),
2051 String::from("c")])),
2054 v3.externs = Externs::new(mk_map(vec![
2055 (String::from("a"), mk_set(vec![String::from("b"),
2056 String::from("c")])),
2057 (String::from("d"), mk_set(vec![String::from("f"),
2058 String::from("e")])),
2061 assert_eq!(v1.dep_tracking_hash(), v2.dep_tracking_hash());
2062 assert_eq!(v1.dep_tracking_hash(), v3.dep_tracking_hash());
2063 assert_eq!(v2.dep_tracking_hash(), v3.dep_tracking_hash());
2066 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2067 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2068 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2072 fn test_lints_tracking_hash_different_values() {
2073 let mut v1 = super::basic_options();
2074 let mut v2 = super::basic_options();
2075 let mut v3 = super::basic_options();
2077 v1.lint_opts = vec![(String::from("a"), lint::Allow),
2078 (String::from("b"), lint::Warn),
2079 (String::from("c"), lint::Deny),
2080 (String::from("d"), lint::Forbid)];
2082 v2.lint_opts = vec![(String::from("a"), lint::Allow),
2083 (String::from("b"), lint::Warn),
2084 (String::from("X"), lint::Deny),
2085 (String::from("d"), lint::Forbid)];
2087 v3.lint_opts = vec![(String::from("a"), lint::Allow),
2088 (String::from("b"), lint::Warn),
2089 (String::from("c"), lint::Forbid),
2090 (String::from("d"), lint::Deny)];
2092 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
2093 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
2094 assert!(v2.dep_tracking_hash() != v3.dep_tracking_hash());
2097 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2098 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2099 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2103 fn test_lints_tracking_hash_different_construction_order() {
2104 let mut v1 = super::basic_options();
2105 let mut v2 = super::basic_options();
2107 v1.lint_opts = vec![(String::from("a"), lint::Allow),
2108 (String::from("b"), lint::Warn),
2109 (String::from("c"), lint::Deny),
2110 (String::from("d"), lint::Forbid)];
2112 v2.lint_opts = vec![(String::from("a"), lint::Allow),
2113 (String::from("c"), lint::Deny),
2114 (String::from("b"), lint::Warn),
2115 (String::from("d"), lint::Forbid)];
2117 assert_eq!(v1.dep_tracking_hash(), v2.dep_tracking_hash());
2120 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2121 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2125 fn test_search_paths_tracking_hash_different_values() {
2126 let mut v1 = super::basic_options();
2127 let mut v2 = super::basic_options();
2128 let mut v3 = super::basic_options();
2129 let mut v4 = super::basic_options();
2130 let mut v5 = super::basic_options();
2133 v1.search_paths.add_path("native=abc", super::ErrorOutputType::Json);
2134 v1.search_paths.add_path("crate=def", super::ErrorOutputType::Json);
2135 v1.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json);
2136 v1.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json);
2137 v1.search_paths.add_path("all=mno", super::ErrorOutputType::Json);
2140 v2.search_paths.add_path("native=XXX", super::ErrorOutputType::Json);
2141 v2.search_paths.add_path("crate=def", super::ErrorOutputType::Json);
2142 v2.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json);
2143 v2.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json);
2144 v2.search_paths.add_path("all=mno", super::ErrorOutputType::Json);
2147 v2.search_paths.add_path("native=abc", super::ErrorOutputType::Json);
2148 v2.search_paths.add_path("crate=XXX", super::ErrorOutputType::Json);
2149 v2.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json);
2150 v2.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json);
2151 v2.search_paths.add_path("all=mno", super::ErrorOutputType::Json);
2153 // Dependency changed
2154 v3.search_paths.add_path("native=abc", super::ErrorOutputType::Json);
2155 v3.search_paths.add_path("crate=def", super::ErrorOutputType::Json);
2156 v3.search_paths.add_path("dependency=XXX", super::ErrorOutputType::Json);
2157 v3.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json);
2158 v3.search_paths.add_path("all=mno", super::ErrorOutputType::Json);
2160 // Framework changed
2161 v4.search_paths.add_path("native=abc", super::ErrorOutputType::Json);
2162 v4.search_paths.add_path("crate=def", super::ErrorOutputType::Json);
2163 v4.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json);
2164 v4.search_paths.add_path("framework=XXX", super::ErrorOutputType::Json);
2165 v4.search_paths.add_path("all=mno", super::ErrorOutputType::Json);
2168 v5.search_paths.add_path("native=abc", super::ErrorOutputType::Json);
2169 v5.search_paths.add_path("crate=def", super::ErrorOutputType::Json);
2170 v5.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json);
2171 v5.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json);
2172 v5.search_paths.add_path("all=XXX", super::ErrorOutputType::Json);
2174 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
2175 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
2176 assert!(v1.dep_tracking_hash() != v4.dep_tracking_hash());
2177 assert!(v1.dep_tracking_hash() != v5.dep_tracking_hash());
2180 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2181 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2182 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2183 assert_eq!(v4.dep_tracking_hash(), v4.clone().dep_tracking_hash());
2184 assert_eq!(v5.dep_tracking_hash(), v5.clone().dep_tracking_hash());
2188 fn test_search_paths_tracking_hash_different_order() {
2189 let mut v1 = super::basic_options();
2190 let mut v2 = super::basic_options();
2191 let mut v3 = super::basic_options();
2192 let mut v4 = super::basic_options();
2195 v1.search_paths.add_path("native=abc", super::ErrorOutputType::Json);
2196 v1.search_paths.add_path("crate=def", super::ErrorOutputType::Json);
2197 v1.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json);
2198 v1.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json);
2199 v1.search_paths.add_path("all=mno", super::ErrorOutputType::Json);
2201 v2.search_paths.add_path("native=abc", super::ErrorOutputType::Json);
2202 v2.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json);
2203 v2.search_paths.add_path("crate=def", super::ErrorOutputType::Json);
2204 v2.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json);
2205 v2.search_paths.add_path("all=mno", super::ErrorOutputType::Json);
2207 v3.search_paths.add_path("crate=def", super::ErrorOutputType::Json);
2208 v3.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json);
2209 v3.search_paths.add_path("native=abc", super::ErrorOutputType::Json);
2210 v3.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json);
2211 v3.search_paths.add_path("all=mno", super::ErrorOutputType::Json);
2213 v4.search_paths.add_path("all=mno", super::ErrorOutputType::Json);
2214 v4.search_paths.add_path("native=abc", super::ErrorOutputType::Json);
2215 v4.search_paths.add_path("crate=def", super::ErrorOutputType::Json);
2216 v4.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json);
2217 v4.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json);
2219 assert!(v1.dep_tracking_hash() == v2.dep_tracking_hash());
2220 assert!(v1.dep_tracking_hash() == v3.dep_tracking_hash());
2221 assert!(v1.dep_tracking_hash() == v4.dep_tracking_hash());
2224 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2225 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2226 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2227 assert_eq!(v4.dep_tracking_hash(), v4.clone().dep_tracking_hash());
2231 fn test_native_libs_tracking_hash_different_values() {
2232 let mut v1 = super::basic_options();
2233 let mut v2 = super::basic_options();
2234 let mut v3 = super::basic_options();
2235 let mut v4 = super::basic_options();
2238 v1.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2239 (String::from("b"), None, Some(cstore::NativeFramework)),
2240 (String::from("c"), None, Some(cstore::NativeUnknown))];
2243 v2.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2244 (String::from("X"), None, Some(cstore::NativeFramework)),
2245 (String::from("c"), None, Some(cstore::NativeUnknown))];
2248 v3.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2249 (String::from("b"), None, Some(cstore::NativeStatic)),
2250 (String::from("c"), None, Some(cstore::NativeUnknown))];
2253 v4.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2254 (String::from("b"), Some(String::from("X")), Some(cstore::NativeFramework)),
2255 (String::from("c"), None, Some(cstore::NativeUnknown))];
2257 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
2258 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
2259 assert!(v1.dep_tracking_hash() != v4.dep_tracking_hash());
2262 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2263 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2264 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2265 assert_eq!(v4.dep_tracking_hash(), v4.clone().dep_tracking_hash());
2269 fn test_native_libs_tracking_hash_different_order() {
2270 let mut v1 = super::basic_options();
2271 let mut v2 = super::basic_options();
2272 let mut v3 = super::basic_options();
2275 v1.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2276 (String::from("b"), None, Some(cstore::NativeFramework)),
2277 (String::from("c"), None, Some(cstore::NativeUnknown))];
2279 v2.libs = vec![(String::from("b"), None, Some(cstore::NativeFramework)),
2280 (String::from("a"), None, Some(cstore::NativeStatic)),
2281 (String::from("c"), None, Some(cstore::NativeUnknown))];
2283 v3.libs = vec![(String::from("c"), None, Some(cstore::NativeUnknown)),
2284 (String::from("a"), None, Some(cstore::NativeStatic)),
2285 (String::from("b"), None, Some(cstore::NativeFramework))];
2287 assert!(v1.dep_tracking_hash() == v2.dep_tracking_hash());
2288 assert!(v1.dep_tracking_hash() == v3.dep_tracking_hash());
2289 assert!(v2.dep_tracking_hash() == v3.dep_tracking_hash());
2292 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2293 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2294 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2298 fn test_codegen_options_tracking_hash() {
2299 let reference = super::basic_options();
2300 let mut opts = super::basic_options();
2302 // Make sure the changing an [UNTRACKED] option leaves the hash unchanged
2303 opts.cg.ar = Some(String::from("abc"));
2304 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2306 opts.cg.linker = Some(String::from("linker"));
2307 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2309 opts.cg.link_args = Some(vec![String::from("abc"), String::from("def")]);
2310 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2312 opts.cg.link_dead_code = true;
2313 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2315 opts.cg.rpath = true;
2316 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2318 opts.cg.extra_filename = String::from("extra-filename");
2319 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2321 opts.cg.codegen_units = 42;
2322 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2324 opts.cg.remark = super::SomePasses(vec![String::from("pass1"),
2325 String::from("pass2")]);
2326 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2328 opts.cg.save_temps = true;
2329 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2332 // Make sure changing a [TRACKED] option changes the hash
2333 opts = reference.clone();
2335 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2337 opts = reference.clone();
2338 opts.cg.target_cpu = Some(String::from("abc"));
2339 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2341 opts = reference.clone();
2342 opts.cg.target_feature = String::from("all the features, all of them");
2343 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2345 opts = reference.clone();
2346 opts.cg.passes = vec![String::from("1"), String::from("2")];
2347 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2349 opts = reference.clone();
2350 opts.cg.llvm_args = vec![String::from("1"), String::from("2")];
2351 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2353 opts = reference.clone();
2354 opts.cg.overflow_checks = Some(true);
2355 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2357 opts = reference.clone();
2358 opts.cg.no_prepopulate_passes = true;
2359 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2361 opts = reference.clone();
2362 opts.cg.no_vectorize_loops = true;
2363 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2365 opts = reference.clone();
2366 opts.cg.no_vectorize_slp = true;
2367 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2369 opts = reference.clone();
2370 opts.cg.soft_float = true;
2371 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2373 opts = reference.clone();
2374 opts.cg.prefer_dynamic = true;
2375 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2377 opts = reference.clone();
2378 opts.cg.no_integrated_as = true;
2379 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2381 opts = reference.clone();
2382 opts.cg.no_redzone = Some(true);
2383 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2385 opts = reference.clone();
2386 opts.cg.relocation_model = Some(String::from("relocation model"));
2387 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2389 opts = reference.clone();
2390 opts.cg.code_model = Some(String::from("code model"));
2391 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2393 opts = reference.clone();
2394 opts.cg.metadata = vec![String::from("A"), String::from("B")];
2395 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2397 opts = reference.clone();
2398 opts.cg.debuginfo = Some(0xdeadbeef);
2399 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2401 opts = reference.clone();
2402 opts.cg.debuginfo = Some(0xba5eba11);
2403 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2405 opts = reference.clone();
2406 opts.cg.debug_assertions = Some(true);
2407 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2409 opts = reference.clone();
2410 opts.cg.inline_threshold = Some(0xf007ba11);
2411 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2413 opts = reference.clone();
2414 opts.cg.panic = Some(PanicStrategy::Abort);
2415 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2419 fn test_debugging_options_tracking_hash() {
2420 let reference = super::basic_options();
2421 let mut opts = super::basic_options();
2423 // Make sure the changing an [UNTRACKED] option leaves the hash unchanged
2424 opts.debugging_opts.verbose = true;
2425 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2426 opts.debugging_opts.time_passes = true;
2427 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2428 opts.debugging_opts.count_llvm_insns = true;
2429 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2430 opts.debugging_opts.time_llvm_passes = true;
2431 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2432 opts.debugging_opts.input_stats = true;
2433 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2434 opts.debugging_opts.trans_stats = true;
2435 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2436 opts.debugging_opts.borrowck_stats = true;
2437 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2438 opts.debugging_opts.debug_llvm = true;
2439 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2440 opts.debugging_opts.meta_stats = true;
2441 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2442 opts.debugging_opts.print_link_args = true;
2443 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2444 opts.debugging_opts.print_llvm_passes = true;
2445 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2446 opts.debugging_opts.ast_json = true;
2447 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2448 opts.debugging_opts.ast_json_noexpand = true;
2449 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2450 opts.debugging_opts.ls = true;
2451 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2452 opts.debugging_opts.save_analysis = true;
2453 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2454 opts.debugging_opts.save_analysis_csv = true;
2455 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2456 opts.debugging_opts.save_analysis_api = true;
2457 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2458 opts.debugging_opts.print_move_fragments = true;
2459 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2460 opts.debugging_opts.flowgraph_print_loans = true;
2461 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2462 opts.debugging_opts.flowgraph_print_moves = true;
2463 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2464 opts.debugging_opts.flowgraph_print_assigns = true;
2465 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2466 opts.debugging_opts.flowgraph_print_all = true;
2467 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2468 opts.debugging_opts.print_region_graph = true;
2469 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2470 opts.debugging_opts.parse_only = true;
2471 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2472 opts.debugging_opts.incremental = Some(String::from("abc"));
2473 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2474 opts.debugging_opts.dump_dep_graph = true;
2475 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2476 opts.debugging_opts.query_dep_graph = true;
2477 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2478 opts.debugging_opts.no_analysis = true;
2479 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2480 opts.debugging_opts.unstable_options = true;
2481 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2482 opts.debugging_opts.trace_macros = true;
2483 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2484 opts.debugging_opts.keep_hygiene_data = true;
2485 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2486 opts.debugging_opts.keep_ast = true;
2487 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2488 opts.debugging_opts.print_trans_items = Some(String::from("abc"));
2489 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2490 opts.debugging_opts.dump_mir = Some(String::from("abc"));
2491 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2492 opts.debugging_opts.dump_mir_dir = Some(String::from("abc"));
2493 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2495 // Make sure changing a [TRACKED] option changes the hash
2496 opts = reference.clone();
2497 opts.debugging_opts.asm_comments = true;
2498 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2500 opts = reference.clone();
2501 opts.debugging_opts.no_verify = true;
2502 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2504 opts = reference.clone();
2505 opts.debugging_opts.no_landing_pads = true;
2506 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2508 opts = reference.clone();
2509 opts.debugging_opts.no_trans = true;
2510 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2512 opts = reference.clone();
2513 opts.debugging_opts.treat_err_as_bug = true;
2514 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2516 opts = reference.clone();
2517 opts.debugging_opts.continue_parse_after_error = true;
2518 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2520 opts = reference.clone();
2521 opts.debugging_opts.extra_plugins = vec![String::from("plugin1"), String::from("plugin2")];
2522 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2524 opts = reference.clone();
2525 opts.debugging_opts.force_overflow_checks = Some(true);
2526 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2528 opts = reference.clone();
2529 opts.debugging_opts.enable_nonzeroing_move_hints = true;
2530 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2532 opts = reference.clone();
2533 opts.debugging_opts.show_span = Some(String::from("abc"));
2534 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2536 opts = reference.clone();
2537 opts.debugging_opts.mir_opt_level = 3;
2538 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());