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;
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)
533 pub fn host_triple() -> &'static str {
534 // Get the host triple out of the build environment. This ensures that our
535 // idea of the host triple is the same as for the set of libraries we've
536 // actually built. We can't just take LLVM's host triple because they
537 // normalize all ix86 architectures to i386.
539 // Instead of grabbing the host triple (for the current host), we grab (at
540 // compile time) the target triple that this rustc is built with and
541 // calling that (at runtime) the host triple.
542 (option_env!("CFG_COMPILER_HOST_TRIPLE")).
543 expect("CFG_COMPILER_HOST_TRIPLE")
546 /// Some reasonable defaults
547 pub fn basic_options() -> Options {
549 crate_types: Vec::new(),
550 optimize: OptLevel::No,
551 debuginfo: NoDebugInfo,
552 lint_opts: Vec::new(),
554 describe_lints: false,
555 output_types: OutputTypes(BTreeMap::new()),
556 search_paths: SearchPaths::new(),
558 target_triple: host_triple().to_string(),
561 debugging_opts: basic_debugging_options(),
563 borrowck_mode: BorrowckMode::Ast,
564 cg: basic_codegen_options(),
565 error_format: ErrorOutputType::default(),
566 externs: Externs(BTreeMap::new()),
570 unstable_features: UnstableFeatures::Disallow,
571 debug_assertions: true,
572 actually_rustdoc: false,
573 cli_forced_codegen_units: None,
574 cli_forced_thinlto: None,
579 /// True if there is a reason to build the dep graph.
580 pub fn build_dep_graph(&self) -> bool {
581 self.incremental.is_some() ||
582 self.debugging_opts.dump_dep_graph ||
583 self.debugging_opts.query_dep_graph
587 pub fn enable_dep_node_debug_strs(&self) -> bool {
588 cfg!(debug_assertions) &&
589 (self.debugging_opts.query_dep_graph || self.debugging_opts.incremental_info)
592 pub fn file_path_mapping(&self) -> FilePathMapping {
593 FilePathMapping::new(
594 self.debugging_opts.remap_path_prefix_from.iter().zip(
595 self.debugging_opts.remap_path_prefix_to.iter()
596 ).map(|(src, dst)| (src.clone(), dst.clone())).collect()
601 // The type of entry function, so
602 // users can have their own entry
603 // functions that don't start a
605 #[derive(Copy, Clone, PartialEq)]
606 pub enum EntryFnType {
612 #[derive(Copy, PartialEq, PartialOrd, Clone, Ord, Eq, Hash, Debug)]
622 #[derive(Clone, Hash)]
624 SomePasses(Vec<String>),
629 pub fn is_empty(&self) -> bool {
631 SomePasses(ref v) => v.is_empty(),
637 /// Declare a macro that will define all CodegenOptions/DebuggingOptions fields and parsers all
638 /// at once. The goal of this macro is to define an interface that can be
639 /// programmatically used by the option parser in order to initialize the struct
640 /// without hardcoding field names all over the place.
642 /// The goal is to invoke this macro once with the correct fields, and then this
643 /// macro generates all necessary code. The main gotcha of this macro is the
644 /// cgsetters module which is a bunch of generated code to parse an option into
645 /// its respective field in the struct. There are a few hand-written parsers for
646 /// parsing specific types of values in this module.
647 macro_rules! options {
648 ($struct_name:ident, $setter_name:ident, $defaultfn:ident,
649 $buildfn:ident, $prefix:expr, $outputname:expr,
650 $stat:ident, $mod_desc:ident, $mod_set:ident,
651 $($opt:ident : $t:ty = (
654 [$dep_tracking_marker:ident $(($dep_warn_val:expr, $dep_warn_text:expr))*],
659 pub struct $struct_name { $(pub $opt: $t),* }
661 pub fn $defaultfn() -> $struct_name {
662 $struct_name { $($opt: $init),* }
665 pub fn $buildfn(matches: &getopts::Matches, error_format: ErrorOutputType) -> $struct_name
667 let mut op = $defaultfn();
668 for option in matches.opt_strs($prefix) {
669 let mut iter = option.splitn(2, '=');
670 let key = iter.next().unwrap();
671 let value = iter.next();
672 let option_to_lookup = key.replace("-", "_");
673 let mut found = false;
674 for &(candidate, setter, opt_type_desc, _) in $stat {
675 if option_to_lookup != candidate { continue }
676 if !setter(&mut op, value) {
677 match (value, opt_type_desc) {
678 (Some(..), None) => {
679 early_error(error_format, &format!("{} option `{}` takes no \
680 value", $outputname, key))
682 (None, Some(type_desc)) => {
683 early_error(error_format, &format!("{0} option `{1}` requires \
684 {2} ({3} {1}=<value>)",
688 (Some(value), Some(type_desc)) => {
689 early_error(error_format, &format!("incorrect value `{}` for {} \
690 option `{}` - {} was expected",
694 (None, None) => bug!()
701 early_error(error_format, &format!("unknown {} option: `{}`",
708 impl<'a> dep_tracking::DepTrackingHash for $struct_name {
710 fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType) {
711 let mut sub_hashes = BTreeMap::new();
716 [$dep_tracking_marker $($dep_warn_val,
720 dep_tracking::stable_hash(sub_hashes, hasher, error_format);
724 pub type $setter_name = fn(&mut $struct_name, v: Option<&str>) -> bool;
725 pub const $stat: &'static [(&'static str, $setter_name,
726 Option<&'static str>, &'static str)] =
727 &[ $( (stringify!($opt), $mod_set::$opt, $mod_desc::$parse, $desc) ),* ];
729 #[allow(non_upper_case_globals, dead_code)]
731 pub const parse_bool: Option<&'static str> = None;
732 pub const parse_opt_bool: Option<&'static str> =
733 Some("one of: `y`, `yes`, `on`, `n`, `no`, or `off`");
734 pub const parse_string: Option<&'static str> = Some("a string");
735 pub const parse_string_push: Option<&'static str> = Some("a string");
736 pub const parse_opt_string: Option<&'static str> = Some("a string");
737 pub const parse_list: Option<&'static str> = Some("a space-separated list of strings");
738 pub const parse_opt_list: Option<&'static str> = Some("a space-separated list of strings");
739 pub const parse_uint: Option<&'static str> = Some("a number");
740 pub const parse_passes: Option<&'static str> =
741 Some("a space-separated list of passes, or `all`");
742 pub const parse_opt_uint: Option<&'static str> =
744 pub const parse_panic_strategy: Option<&'static str> =
745 Some("either `panic` or `abort`");
746 pub const parse_relro_level: Option<&'static str> =
747 Some("one of: `full`, `partial`, or `off`");
748 pub const parse_sanitizer: Option<&'static str> =
749 Some("one of: `address`, `leak`, `memory` or `thread`");
750 pub const parse_linker_flavor: Option<&'static str> =
751 Some(::rustc_back::LinkerFlavor::one_of());
752 pub const parse_optimization_fuel: Option<&'static str> =
753 Some("crate=integer");
758 use super::{$struct_name, Passes, SomePasses, AllPasses, Sanitizer};
759 use rustc_back::{LinkerFlavor, PanicStrategy, RelroLevel};
762 pub fn $opt(cg: &mut $struct_name, v: Option<&str>) -> bool {
763 $parse(&mut cg.$opt, v)
767 fn parse_bool(slot: &mut bool, v: Option<&str>) -> bool {
770 None => { *slot = true; true }
774 fn parse_opt_bool(slot: &mut Option<bool>, v: Option<&str>) -> bool {
778 "n" | "no" | "off" => {
781 "y" | "yes" | "on" => {
784 _ => { return false; }
789 None => { *slot = Some(true); true }
793 fn parse_opt_string(slot: &mut Option<String>, v: Option<&str>) -> bool {
795 Some(s) => { *slot = Some(s.to_string()); true },
800 fn parse_string(slot: &mut String, v: Option<&str>) -> bool {
802 Some(s) => { *slot = s.to_string(); true },
807 fn parse_string_push(slot: &mut Vec<String>, v: Option<&str>) -> bool {
809 Some(s) => { slot.push(s.to_string()); true },
814 fn parse_list(slot: &mut Vec<String>, v: Option<&str>)
818 for s in s.split_whitespace() {
819 slot.push(s.to_string());
827 fn parse_opt_list(slot: &mut Option<Vec<String>>, v: Option<&str>)
831 let v = s.split_whitespace().map(|s| s.to_string()).collect();
839 fn parse_uint(slot: &mut usize, v: Option<&str>) -> bool {
840 match v.and_then(|s| s.parse().ok()) {
841 Some(i) => { *slot = i; true },
846 fn parse_opt_uint(slot: &mut Option<usize>, v: Option<&str>) -> bool {
848 Some(s) => { *slot = s.parse().ok(); slot.is_some() }
849 None => { *slot = None; false }
853 fn parse_passes(slot: &mut Passes, v: Option<&str>) -> bool {
860 let mut passes = vec![];
861 if parse_list(&mut passes, v) {
862 *slot = SomePasses(passes);
871 fn parse_panic_strategy(slot: &mut Option<PanicStrategy>, v: Option<&str>) -> bool {
873 Some("unwind") => *slot = Some(PanicStrategy::Unwind),
874 Some("abort") => *slot = Some(PanicStrategy::Abort),
880 fn parse_relro_level(slot: &mut Option<RelroLevel>, v: Option<&str>) -> bool {
883 match s.parse::<RelroLevel>() {
884 Ok(level) => *slot = Some(level),
893 fn parse_sanitizer(slote: &mut Option<Sanitizer>, v: Option<&str>) -> bool {
895 Some("address") => *slote = Some(Sanitizer::Address),
896 Some("leak") => *slote = Some(Sanitizer::Leak),
897 Some("memory") => *slote = Some(Sanitizer::Memory),
898 Some("thread") => *slote = Some(Sanitizer::Thread),
904 fn parse_linker_flavor(slote: &mut Option<LinkerFlavor>, v: Option<&str>) -> bool {
905 match v.and_then(LinkerFlavor::from_str) {
906 Some(lf) => *slote = Some(lf),
912 fn parse_optimization_fuel(slot: &mut Option<(String, u64)>, v: Option<&str>) -> bool {
916 let parts = s.split('=').collect::<Vec<_>>();
917 if parts.len() != 2 { return false; }
918 let crate_name = parts[0].to_string();
919 let fuel = parts[1].parse::<u64>();
920 if fuel.is_err() { return false; }
921 *slot = Some((crate_name, fuel.unwrap()));
929 options! {CodegenOptions, CodegenSetter, basic_codegen_options,
930 build_codegen_options, "C", "codegen",
931 CG_OPTIONS, cg_type_desc, cgsetters,
932 ar: Option<String> = (None, parse_opt_string, [UNTRACKED],
933 "this option is deprecated and does nothing"),
934 linker: Option<String> = (None, parse_opt_string, [UNTRACKED],
935 "system linker to link outputs with"),
936 link_arg: Vec<String> = (vec![], parse_string_push, [UNTRACKED],
937 "a single extra argument to append to the linker invocation (can be used several times)"),
938 link_args: Option<Vec<String>> = (None, parse_opt_list, [UNTRACKED],
939 "extra arguments to append to the linker invocation (space separated)"),
940 link_dead_code: bool = (false, parse_bool, [UNTRACKED],
941 "don't let linker strip dead code (turning it on can be used for code coverage)"),
942 lto: bool = (false, parse_bool, [TRACKED],
943 "perform LLVM link-time optimizations"),
944 target_cpu: Option<String> = (None, parse_opt_string, [TRACKED],
945 "select target processor (rustc --print target-cpus for details)"),
946 target_feature: String = ("".to_string(), parse_string, [TRACKED],
947 "target specific attributes (rustc --print target-features for details)"),
948 passes: Vec<String> = (Vec::new(), parse_list, [TRACKED],
949 "a list of extra LLVM passes to run (space separated)"),
950 llvm_args: Vec<String> = (Vec::new(), parse_list, [TRACKED],
951 "a list of arguments to pass to llvm (space separated)"),
952 save_temps: bool = (false, parse_bool, [UNTRACKED_WITH_WARNING(true,
953 "`-C save-temps` might not produce all requested temporary products \
954 when incremental compilation is enabled.")],
955 "save all temporary output files during compilation"),
956 rpath: bool = (false, parse_bool, [UNTRACKED],
957 "set rpath values in libs/exes"),
958 overflow_checks: Option<bool> = (None, parse_opt_bool, [TRACKED],
959 "use overflow checks for integer arithmetic"),
960 no_prepopulate_passes: bool = (false, parse_bool, [TRACKED],
961 "don't pre-populate the pass manager with a list of passes"),
962 no_vectorize_loops: bool = (false, parse_bool, [TRACKED],
963 "don't run the loop vectorization optimization passes"),
964 no_vectorize_slp: bool = (false, parse_bool, [TRACKED],
965 "don't run LLVM's SLP vectorization pass"),
966 soft_float: bool = (false, parse_bool, [TRACKED],
967 "use soft float ABI (*eabihf targets only)"),
968 prefer_dynamic: bool = (false, parse_bool, [TRACKED],
969 "prefer dynamic linking to static linking"),
970 no_integrated_as: bool = (false, parse_bool, [TRACKED],
971 "use an external assembler rather than LLVM's integrated one"),
972 no_redzone: Option<bool> = (None, parse_opt_bool, [TRACKED],
973 "disable the use of the redzone"),
974 relocation_model: Option<String> = (None, parse_opt_string, [TRACKED],
975 "choose the relocation model to use (rustc --print relocation-models for details)"),
976 code_model: Option<String> = (None, parse_opt_string, [TRACKED],
977 "choose the code model to use (rustc --print code-models for details)"),
978 metadata: Vec<String> = (Vec::new(), parse_list, [TRACKED],
979 "metadata to mangle symbol names with"),
980 extra_filename: String = ("".to_string(), parse_string, [UNTRACKED],
981 "extra data to put in each output filename"),
982 codegen_units: Option<usize> = (None, parse_opt_uint, [UNTRACKED],
983 "divide crate into N units to optimize in parallel"),
984 remark: Passes = (SomePasses(Vec::new()), parse_passes, [UNTRACKED],
985 "print remarks for these optimization passes (space separated, or \"all\")"),
986 no_stack_check: bool = (false, parse_bool, [UNTRACKED],
987 "the --no-stack-check flag is deprecated and does nothing"),
988 debuginfo: Option<usize> = (None, parse_opt_uint, [TRACKED],
989 "debug info emission level, 0 = no debug info, 1 = line tables only, \
990 2 = full debug info with variable and type information"),
991 opt_level: Option<String> = (None, parse_opt_string, [TRACKED],
992 "optimize with possible levels 0-3, s, or z"),
993 debug_assertions: Option<bool> = (None, parse_opt_bool, [TRACKED],
994 "explicitly enable the cfg(debug_assertions) directive"),
995 inline_threshold: Option<usize> = (None, parse_opt_uint, [TRACKED],
996 "set the threshold for inlining a function (default: 225)"),
997 panic: Option<PanicStrategy> = (None, parse_panic_strategy,
998 [TRACKED], "panic strategy to compile crate with"),
1001 options! {DebuggingOptions, DebuggingSetter, basic_debugging_options,
1002 build_debugging_options, "Z", "debugging",
1003 DB_OPTIONS, db_type_desc, dbsetters,
1004 verbose: bool = (false, parse_bool, [UNTRACKED],
1005 "in general, enable more debug printouts"),
1006 span_free_formats: bool = (false, parse_bool, [UNTRACKED],
1007 "when debug-printing compiler state, do not include spans"), // o/w tests have closure@path
1008 identify_regions: bool = (false, parse_bool, [UNTRACKED],
1009 "make unnamed regions display as '# (where # is some non-ident unique id)"),
1010 emit_end_regions: bool = (false, parse_bool, [UNTRACKED],
1011 "emit EndRegion as part of MIR; enable transforms that solely process EndRegion"),
1012 borrowck: Option<String> = (None, parse_opt_string, [UNTRACKED],
1013 "select which borrowck is used (`ast`, `mir`, or `compare`)"),
1014 time_passes: bool = (false, parse_bool, [UNTRACKED],
1015 "measure time of each rustc pass"),
1016 count_llvm_insns: bool = (false, parse_bool,
1017 [UNTRACKED_WITH_WARNING(true,
1018 "The output generated by `-Z count_llvm_insns` might not be reliable \
1019 when used with incremental compilation")],
1020 "count where LLVM instrs originate"),
1021 time_llvm_passes: bool = (false, parse_bool, [UNTRACKED_WITH_WARNING(true,
1022 "The output of `-Z time-llvm-passes` will only reflect timings of \
1023 re-translated modules when used with incremental compilation" )],
1024 "measure time of each LLVM pass"),
1025 input_stats: bool = (false, parse_bool, [UNTRACKED],
1026 "gather statistics about the input"),
1027 trans_stats: bool = (false, parse_bool, [UNTRACKED_WITH_WARNING(true,
1028 "The output of `-Z trans-stats` might not be accurate when incremental \
1029 compilation is enabled")],
1030 "gather trans statistics"),
1031 asm_comments: bool = (false, parse_bool, [TRACKED],
1032 "generate comments into the assembly (may change behavior)"),
1033 no_verify: bool = (false, parse_bool, [TRACKED],
1034 "skip LLVM verification"),
1035 borrowck_stats: bool = (false, parse_bool, [UNTRACKED],
1036 "gather borrowck statistics"),
1037 no_landing_pads: bool = (false, parse_bool, [TRACKED],
1038 "omit landing pads for unwinding"),
1039 debug_llvm: bool = (false, parse_bool, [UNTRACKED],
1040 "enable debug output from LLVM"),
1041 meta_stats: bool = (false, parse_bool, [UNTRACKED],
1042 "gather metadata statistics"),
1043 print_link_args: bool = (false, parse_bool, [UNTRACKED],
1044 "print the arguments passed to the linker"),
1045 print_llvm_passes: bool = (false, parse_bool, [UNTRACKED],
1046 "prints the llvm optimization passes being run"),
1047 ast_json: bool = (false, parse_bool, [UNTRACKED],
1048 "print the AST as JSON and halt"),
1049 ast_json_noexpand: bool = (false, parse_bool, [UNTRACKED],
1050 "print the pre-expansion AST as JSON and halt"),
1051 ls: bool = (false, parse_bool, [UNTRACKED],
1052 "list the symbols defined by a library crate"),
1053 save_analysis: bool = (false, parse_bool, [UNTRACKED],
1054 "write syntax and type analysis (in JSON format) information, in \
1055 addition to normal output"),
1056 print_move_fragments: bool = (false, parse_bool, [UNTRACKED],
1057 "print out move-fragment data for every fn"),
1058 flowgraph_print_loans: bool = (false, parse_bool, [UNTRACKED],
1059 "include loan analysis data in --unpretty flowgraph output"),
1060 flowgraph_print_moves: bool = (false, parse_bool, [UNTRACKED],
1061 "include move analysis data in --unpretty flowgraph output"),
1062 flowgraph_print_assigns: bool = (false, parse_bool, [UNTRACKED],
1063 "include assignment analysis data in --unpretty flowgraph output"),
1064 flowgraph_print_all: bool = (false, parse_bool, [UNTRACKED],
1065 "include all dataflow analysis data in --unpretty flowgraph output"),
1066 print_region_graph: bool = (false, parse_bool, [UNTRACKED],
1067 "prints region inference graph. \
1068 Use with RUST_REGION_GRAPH=help for more info"),
1069 parse_only: bool = (false, parse_bool, [UNTRACKED],
1070 "parse only; do not compile, assemble, or link"),
1071 no_trans: bool = (false, parse_bool, [TRACKED],
1072 "run all passes except translation; no output"),
1073 treat_err_as_bug: bool = (false, parse_bool, [TRACKED],
1074 "treat all errors that occur as bugs"),
1075 external_macro_backtrace: bool = (false, parse_bool, [UNTRACKED],
1076 "show macro backtraces even for non-local macros"),
1077 continue_parse_after_error: bool = (false, parse_bool, [TRACKED],
1078 "attempt to recover from parse errors (experimental)"),
1079 incremental: Option<String> = (None, parse_opt_string, [UNTRACKED],
1080 "enable incremental compilation (experimental)"),
1081 incremental_cc: bool = (false, parse_bool, [UNTRACKED],
1082 "enable cross-crate incremental compilation (even more experimental)"),
1083 incremental_queries: bool = (true, parse_bool, [UNTRACKED],
1084 "enable incremental compilation support for queries (experimental)"),
1085 incremental_info: bool = (false, parse_bool, [UNTRACKED],
1086 "print high-level information about incremental reuse (or the lack thereof)"),
1087 incremental_dump_hash: bool = (false, parse_bool, [UNTRACKED],
1088 "dump hash information in textual format to stdout"),
1089 incremental_verify_ich: bool = (false, parse_bool, [UNTRACKED],
1090 "verify incr. comp. hashes of green query instances"),
1091 dump_dep_graph: bool = (false, parse_bool, [UNTRACKED],
1092 "dump the dependency graph to $RUST_DEP_GRAPH (default: /tmp/dep_graph.gv)"),
1093 query_dep_graph: bool = (false, parse_bool, [UNTRACKED],
1094 "enable queries of the dependency graph for regression testing"),
1095 profile_queries: bool = (false, parse_bool, [UNTRACKED],
1096 "trace and profile the queries of the incremental compilation framework"),
1097 profile_queries_and_keys: bool = (false, parse_bool, [UNTRACKED],
1098 "trace and profile the queries and keys of the incremental compilation framework"),
1099 no_analysis: bool = (false, parse_bool, [UNTRACKED],
1100 "parse and expand the source, but run no analysis"),
1101 extra_plugins: Vec<String> = (Vec::new(), parse_list, [TRACKED],
1102 "load extra plugins"),
1103 unstable_options: bool = (false, parse_bool, [UNTRACKED],
1104 "adds unstable command line options to rustc interface"),
1105 force_overflow_checks: Option<bool> = (None, parse_opt_bool, [TRACKED],
1106 "force overflow checks on or off"),
1107 trace_macros: bool = (false, parse_bool, [UNTRACKED],
1108 "for every macro invocation, print its name and arguments"),
1109 debug_macros: bool = (false, parse_bool, [TRACKED],
1110 "emit line numbers debug info inside macros"),
1111 enable_nonzeroing_move_hints: bool = (false, parse_bool, [TRACKED],
1112 "force nonzeroing move optimization on"),
1113 keep_hygiene_data: bool = (false, parse_bool, [UNTRACKED],
1114 "don't clear the hygiene data after analysis"),
1115 keep_ast: bool = (false, parse_bool, [UNTRACKED],
1116 "keep the AST after lowering it to HIR"),
1117 show_span: Option<String> = (None, parse_opt_string, [TRACKED],
1118 "show spans for compiler debugging (expr|pat|ty)"),
1119 print_type_sizes: bool = (false, parse_bool, [UNTRACKED],
1120 "print layout information for each type encountered"),
1121 print_trans_items: Option<String> = (None, parse_opt_string, [UNTRACKED],
1122 "print the result of the translation item collection pass"),
1123 mir_opt_level: usize = (1, parse_uint, [TRACKED],
1124 "set the MIR optimization level (0-3, default: 1)"),
1125 mutable_noalias: bool = (false, parse_bool, [UNTRACKED],
1126 "emit noalias metadata for mutable references"),
1127 dump_mir: Option<String> = (None, parse_opt_string, [UNTRACKED],
1128 "dump MIR state at various points in translation"),
1129 dump_mir_dir: Option<String> = (None, parse_opt_string, [UNTRACKED],
1130 "the directory the MIR is dumped into"),
1131 dump_mir_graphviz: bool = (false, parse_bool, [UNTRACKED],
1132 "in addition to `.mir` files, create graphviz `.dot` files"),
1133 dump_mir_exclude_pass_number: bool = (false, parse_bool, [UNTRACKED],
1134 "if set, exclude the pass number when dumping MIR (used in tests)"),
1135 mir_emit_validate: usize = (0, parse_uint, [TRACKED],
1136 "emit Validate MIR statements, interpreted e.g. by miri (0: do not emit; 1: if function \
1137 contains unsafe block, only validate arguments; 2: always emit full validation)"),
1138 perf_stats: bool = (false, parse_bool, [UNTRACKED],
1139 "print some performance-related statistics"),
1140 hir_stats: bool = (false, parse_bool, [UNTRACKED],
1141 "print some statistics about AST and HIR"),
1142 mir_stats: bool = (false, parse_bool, [UNTRACKED],
1143 "print some statistics about MIR"),
1144 always_encode_mir: bool = (false, parse_bool, [TRACKED],
1145 "encode MIR of all functions into the crate metadata"),
1146 osx_rpath_install_name: bool = (false, parse_bool, [TRACKED],
1147 "pass `-install_name @rpath/...` to the macOS linker"),
1148 sanitizer: Option<Sanitizer> = (None, parse_sanitizer, [TRACKED],
1150 linker_flavor: Option<LinkerFlavor> = (None, parse_linker_flavor, [UNTRACKED],
1152 fuel: Option<(String, u64)> = (None, parse_optimization_fuel, [TRACKED],
1153 "set the optimization fuel quota for a crate"),
1154 print_fuel: Option<String> = (None, parse_opt_string, [TRACKED],
1155 "make Rustc print the total optimization fuel used by a crate"),
1156 remap_path_prefix_from: Vec<String> = (vec![], parse_string_push, [TRACKED],
1157 "add a source pattern to the file path remapping config"),
1158 remap_path_prefix_to: Vec<String> = (vec![], parse_string_push, [TRACKED],
1159 "add a mapping target to the file path remapping config"),
1160 force_unstable_if_unmarked: bool = (false, parse_bool, [TRACKED],
1161 "force all crates to be `rustc_private` unstable"),
1162 pre_link_arg: Vec<String> = (vec![], parse_string_push, [UNTRACKED],
1163 "a single extra argument to prepend the linker invocation (can be used several times)"),
1164 pre_link_args: Option<Vec<String>> = (None, parse_opt_list, [UNTRACKED],
1165 "extra arguments to prepend to the linker invocation (space separated)"),
1166 profile: bool = (false, parse_bool, [TRACKED],
1167 "insert profiling code"),
1168 relro_level: Option<RelroLevel> = (None, parse_relro_level, [TRACKED],
1169 "choose which RELRO level to use"),
1170 nll: bool = (false, parse_bool, [UNTRACKED],
1171 "run the non-lexical lifetimes MIR pass"),
1172 trans_time_graph: bool = (false, parse_bool, [UNTRACKED],
1173 "generate a graphical HTML report of time spent in trans and LLVM"),
1174 thinlto: Option<bool> = (None, parse_opt_bool, [TRACKED],
1175 "enable ThinLTO when possible"),
1176 inline_in_all_cgus: Option<bool> = (None, parse_opt_bool, [TRACKED],
1177 "control whether #[inline] functions are in all cgus"),
1178 tls_model: Option<String> = (None, parse_opt_string, [TRACKED],
1179 "choose the TLS model to use (rustc --print tls-models for details)"),
1180 saturating_float_casts: bool = (false, parse_bool, [TRACKED],
1181 "make float->int casts UB-free: numbers outside the integer type's range are clipped to \
1182 the max/min integer respectively, and NaN is mapped to 0"),
1183 lower_128bit_ops: bool = (false, parse_bool, [TRACKED],
1184 "rewrite operators on i128 and u128 into lang item calls (typically provided \
1185 by compiler-builtins) so translation doesn't need to support them"),
1188 pub fn default_lib_output() -> CrateType {
1192 pub fn default_configuration(sess: &Session) -> ast::CrateConfig {
1193 let end = &sess.target.target.target_endian;
1194 let arch = &sess.target.target.arch;
1195 let wordsz = &sess.target.target.target_pointer_width;
1196 let os = &sess.target.target.target_os;
1197 let env = &sess.target.target.target_env;
1198 let vendor = &sess.target.target.target_vendor;
1199 let min_atomic_width = sess.target.target.min_atomic_width();
1200 let max_atomic_width = sess.target.target.max_atomic_width();
1202 let mut ret = HashSet::new();
1204 ret.insert((Symbol::intern("target_os"), Some(Symbol::intern(os))));
1205 if let Some(ref fam) = sess.target.target.options.target_family {
1206 ret.insert((Symbol::intern("target_family"), Some(Symbol::intern(fam))));
1207 if fam == "windows" || fam == "unix" {
1208 ret.insert((Symbol::intern(fam), None));
1211 ret.insert((Symbol::intern("target_arch"), Some(Symbol::intern(arch))));
1212 ret.insert((Symbol::intern("target_endian"), Some(Symbol::intern(end))));
1213 ret.insert((Symbol::intern("target_pointer_width"), Some(Symbol::intern(wordsz))));
1214 ret.insert((Symbol::intern("target_env"), Some(Symbol::intern(env))));
1215 ret.insert((Symbol::intern("target_vendor"), Some(Symbol::intern(vendor))));
1216 if sess.target.target.options.has_elf_tls {
1217 ret.insert((Symbol::intern("target_thread_local"), None));
1219 for &i in &[8, 16, 32, 64, 128] {
1220 if i >= min_atomic_width && i <= max_atomic_width {
1221 let s = i.to_string();
1222 ret.insert((Symbol::intern("target_has_atomic"), Some(Symbol::intern(&s))));
1224 ret.insert((Symbol::intern("target_has_atomic"), Some(Symbol::intern("ptr"))));
1228 if sess.opts.debug_assertions {
1229 ret.insert((Symbol::intern("debug_assertions"), None));
1231 if sess.opts.crate_types.contains(&CrateTypeProcMacro) {
1232 ret.insert((Symbol::intern("proc_macro"), None));
1237 pub fn build_configuration(sess: &Session,
1238 mut user_cfg: ast::CrateConfig)
1239 -> ast::CrateConfig {
1240 // Combine the configuration requested by the session (command line) with
1241 // some default and generated configuration items
1242 let default_cfg = default_configuration(sess);
1243 // If the user wants a test runner, then add the test cfg
1245 user_cfg.insert((Symbol::intern("test"), None));
1247 user_cfg.extend(default_cfg.iter().cloned());
1251 pub fn build_target_config(opts: &Options, sp: &Handler) -> Config {
1252 let target = match Target::search(&opts.target_triple) {
1255 sp.struct_fatal(&format!("Error loading target specification: {}", e))
1256 .help("Use `--print target-list` for a list of built-in targets")
1262 let (isize_ty, usize_ty) = match &target.target_pointer_width[..] {
1263 "16" => (ast::IntTy::I16, ast::UintTy::U16),
1264 "32" => (ast::IntTy::I32, ast::UintTy::U32),
1265 "64" => (ast::IntTy::I64, ast::UintTy::U64),
1266 w => panic!(sp.fatal(&format!("target specification was invalid: \
1267 unrecognized target-pointer-width {}", w))),
1277 #[derive(Copy, Clone, PartialEq, Eq, Debug)]
1278 pub enum OptionStability {
1284 pub struct RustcOptGroup {
1285 pub apply: Box<Fn(&mut getopts::Options) -> &mut getopts::Options>,
1286 pub name: &'static str,
1287 pub stability: OptionStability,
1290 impl RustcOptGroup {
1291 pub fn is_stable(&self) -> bool {
1292 self.stability == OptionStability::Stable
1295 pub fn stable<F>(name: &'static str, f: F) -> RustcOptGroup
1296 where F: Fn(&mut getopts::Options) -> &mut getopts::Options + 'static,
1301 stability: OptionStability::Stable,
1305 pub fn unstable<F>(name: &'static str, f: F) -> RustcOptGroup
1306 where F: Fn(&mut getopts::Options) -> &mut getopts::Options + 'static,
1311 stability: OptionStability::Unstable,
1316 // The `opt` local module holds wrappers around the `getopts` API that
1317 // adds extra rustc-specific metadata to each option; such metadata
1318 // is exposed by . The public
1319 // functions below ending with `_u` are the functions that return
1320 // *unstable* options, i.e. options that are only enabled when the
1321 // user also passes the `-Z unstable-options` debugging flag.
1323 // The `fn opt_u` etc below are written so that we can use them
1324 // in the future; do not warn about them not being used right now.
1325 #![allow(dead_code)]
1328 use super::RustcOptGroup;
1330 pub type R = RustcOptGroup;
1331 pub type S = &'static str;
1333 fn stable<F>(name: S, f: F) -> R
1334 where F: Fn(&mut getopts::Options) -> &mut getopts::Options + 'static
1336 RustcOptGroup::stable(name, f)
1339 fn unstable<F>(name: S, f: F) -> R
1340 where F: Fn(&mut getopts::Options) -> &mut getopts::Options + 'static
1342 RustcOptGroup::unstable(name, f)
1345 fn longer(a: S, b: S) -> S {
1346 if a.len() > b.len() {
1353 pub fn opt_s(a: S, b: S, c: S, d: S) -> R {
1354 stable(longer(a, b), move |opts| opts.optopt(a, b, c, d))
1356 pub fn multi_s(a: S, b: S, c: S, d: S) -> R {
1357 stable(longer(a, b), move |opts| opts.optmulti(a, b, c, d))
1359 pub fn flag_s(a: S, b: S, c: S) -> R {
1360 stable(longer(a, b), move |opts| opts.optflag(a, b, c))
1362 pub fn flagopt_s(a: S, b: S, c: S, d: S) -> R {
1363 stable(longer(a, b), move |opts| opts.optflagopt(a, b, c, d))
1365 pub fn flagmulti_s(a: S, b: S, c: S) -> R {
1366 stable(longer(a, b), move |opts| opts.optflagmulti(a, b, c))
1369 pub fn opt(a: S, b: S, c: S, d: S) -> R {
1370 unstable(longer(a, b), move |opts| opts.optopt(a, b, c, d))
1372 pub fn multi(a: S, b: S, c: S, d: S) -> R {
1373 unstable(longer(a, b), move |opts| opts.optmulti(a, b, c, d))
1375 pub fn flag(a: S, b: S, c: S) -> R {
1376 unstable(longer(a, b), move |opts| opts.optflag(a, b, c))
1378 pub fn flagopt(a: S, b: S, c: S, d: S) -> R {
1379 unstable(longer(a, b), move |opts| opts.optflagopt(a, b, c, d))
1381 pub fn flagmulti(a: S, b: S, c: S) -> R {
1382 unstable(longer(a, b), move |opts| opts.optflagmulti(a, b, c))
1386 /// Returns the "short" subset of the rustc command line options,
1387 /// including metadata for each option, such as whether the option is
1388 /// part of the stable long-term interface for rustc.
1389 pub fn rustc_short_optgroups() -> Vec<RustcOptGroup> {
1391 opt::flag_s("h", "help", "Display this message"),
1392 opt::multi_s("", "cfg", "Configure the compilation environment", "SPEC"),
1393 opt::multi_s("L", "", "Add a directory to the library search path. The
1394 optional KIND can be one of dependency, crate, native,
1395 framework or all (the default).", "[KIND=]PATH"),
1396 opt::multi_s("l", "", "Link the generated crate(s) to the specified native
1397 library NAME. The optional KIND can be one of
1398 static, dylib, or framework. If omitted, dylib is
1399 assumed.", "[KIND=]NAME"),
1400 opt::multi_s("", "crate-type", "Comma separated list of types of crates
1401 for the compiler to emit",
1402 "[bin|lib|rlib|dylib|cdylib|staticlib|proc-macro]"),
1403 opt::opt_s("", "crate-name", "Specify the name of the crate being built",
1405 opt::multi_s("", "emit", "Comma separated list of types of output for \
1406 the compiler to emit",
1407 "[asm|llvm-bc|llvm-ir|obj|metadata|link|dep-info|mir]"),
1408 opt::multi_s("", "print", "Comma separated list of compiler information to \
1410 "[crate-name|file-names|sysroot|cfg|target-list|\
1411 target-cpus|target-features|relocation-models|\
1412 code-models|tls-models|target-spec-json|native-static-libs]"),
1413 opt::flagmulti_s("g", "", "Equivalent to -C debuginfo=2"),
1414 opt::flagmulti_s("O", "", "Equivalent to -C opt-level=2"),
1415 opt::opt_s("o", "", "Write output to <filename>", "FILENAME"),
1416 opt::opt_s("", "out-dir", "Write output to compiler-chosen filename \
1418 opt::opt_s("", "explain", "Provide a detailed explanation of an error \
1420 opt::flag_s("", "test", "Build a test harness"),
1421 opt::opt_s("", "target", "Target triple for which the code is compiled", "TARGET"),
1422 opt::multi_s("W", "warn", "Set lint warnings", "OPT"),
1423 opt::multi_s("A", "allow", "Set lint allowed", "OPT"),
1424 opt::multi_s("D", "deny", "Set lint denied", "OPT"),
1425 opt::multi_s("F", "forbid", "Set lint forbidden", "OPT"),
1426 opt::multi_s("", "cap-lints", "Set the most restrictive lint level. \
1427 More restrictive lints are capped at this \
1429 opt::multi_s("C", "codegen", "Set a codegen option", "OPT[=VALUE]"),
1430 opt::flag_s("V", "version", "Print version info and exit"),
1431 opt::flag_s("v", "verbose", "Use verbose output"),
1435 /// Returns all rustc command line options, including metadata for
1436 /// each option, such as whether the option is part of the stable
1437 /// long-term interface for rustc.
1438 pub fn rustc_optgroups() -> Vec<RustcOptGroup> {
1439 let mut opts = rustc_short_optgroups();
1441 opt::multi_s("", "extern", "Specify where an external rust library is located",
1443 opt::opt_s("", "sysroot", "Override the system root", "PATH"),
1444 opt::multi("Z", "", "Set internal debugging options", "FLAG"),
1445 opt::opt_s("", "error-format",
1446 "How errors and other messages are produced",
1447 "human|json|short"),
1448 opt::opt_s("", "color", "Configure coloring of output:
1449 auto = colorize, if output goes to a tty (default);
1450 always = always colorize output;
1451 never = never colorize output", "auto|always|never"),
1453 opt::opt("", "pretty",
1454 "Pretty-print the input instead of compiling;
1455 valid types are: `normal` (un-annotated source),
1456 `expanded` (crates expanded), or
1457 `expanded,identified` (fully parenthesized, AST nodes with IDs).",
1459 opt::opt("", "unpretty",
1460 "Present the input source, unstable (and less-pretty) variants;
1461 valid types are any of the types for `--pretty`, as well as:
1462 `flowgraph=<nodeid>` (graphviz formatted flowgraph for node),
1463 `everybody_loops` (all function bodies replaced with `loop {}`),
1464 `hir` (the HIR), `hir,identified`, or
1465 `hir,typed` (HIR with types for each node).",
1471 // Convert strings provided as --cfg [cfgspec] into a crate_cfg
1472 pub fn parse_cfgspecs(cfgspecs: Vec<String> ) -> ast::CrateConfig {
1473 cfgspecs.into_iter().map(|s| {
1474 let sess = parse::ParseSess::new(FilePathMapping::empty());
1476 parse::new_parser_from_source_str(&sess, "cfgspec".to_string(), s.to_string());
1478 let meta_item = panictry!(parser.parse_meta_item());
1480 if parser.token != token::Eof {
1481 early_error(ErrorOutputType::default(), &format!("invalid --cfg argument: {}", s))
1482 } else if meta_item.is_meta_item_list() {
1484 format!("invalid predicate in --cfg command line argument: `{}`", meta_item.name());
1485 early_error(ErrorOutputType::default(), &msg)
1488 (meta_item.name(), meta_item.value_str())
1489 }).collect::<ast::CrateConfig>()
1492 pub fn build_session_options_and_crate_config(matches: &getopts::Matches)
1493 -> (Options, ast::CrateConfig) {
1494 let color = match matches.opt_str("color").as_ref().map(|s| &s[..]) {
1495 Some("auto") => ColorConfig::Auto,
1496 Some("always") => ColorConfig::Always,
1497 Some("never") => ColorConfig::Never,
1499 None => ColorConfig::Auto,
1502 early_error(ErrorOutputType::default(), &format!("argument for --color must be auto, \
1503 always or never (instead was `{}`)",
1508 // We need the opts_present check because the driver will send us Matches
1509 // with only stable options if no unstable options are used. Since error-format
1510 // is unstable, it will not be present. We have to use opts_present not
1511 // opt_present because the latter will panic.
1512 let error_format = if matches.opts_present(&["error-format".to_owned()]) {
1513 match matches.opt_str("error-format").as_ref().map(|s| &s[..]) {
1514 Some("human") => ErrorOutputType::HumanReadable(color),
1515 Some("json") => ErrorOutputType::Json(false),
1516 Some("pretty-json") => ErrorOutputType::Json(true),
1518 if nightly_options::is_unstable_enabled(matches) {
1519 ErrorOutputType::Short(color)
1521 early_error(ErrorOutputType::default(),
1522 &format!("the `-Z unstable-options` flag must also be passed to \
1523 enable the short error message option"));
1526 None => ErrorOutputType::HumanReadable(color),
1529 early_error(ErrorOutputType::HumanReadable(color),
1530 &format!("argument for --error-format must be `human`, `json` or \
1531 `short` (instead was `{}`)",
1536 ErrorOutputType::HumanReadable(color)
1539 let unparsed_crate_types = matches.opt_strs("crate-type");
1540 let crate_types = parse_crate_types_from_list(unparsed_crate_types)
1541 .unwrap_or_else(|e| early_error(error_format, &e[..]));
1543 let mut lint_opts = vec![];
1544 let mut describe_lints = false;
1546 for &level in &[lint::Allow, lint::Warn, lint::Deny, lint::Forbid] {
1547 for lint_name in matches.opt_strs(level.as_str()) {
1548 if lint_name == "help" {
1549 describe_lints = true;
1551 lint_opts.push((lint_name.replace("-", "_"), level));
1556 let lint_cap = matches.opt_str("cap-lints").map(|cap| {
1557 lint::Level::from_str(&cap).unwrap_or_else(|| {
1558 early_error(error_format, &format!("unknown lint level: `{}`", cap))
1562 let mut debugging_opts = build_debugging_options(matches, error_format);
1564 if !debugging_opts.unstable_options && error_format == ErrorOutputType::Json(true) {
1565 early_error(ErrorOutputType::Json(false),
1566 "--error-format=pretty-json is unstable");
1569 let mut output_types = BTreeMap::new();
1570 if !debugging_opts.parse_only {
1571 for list in matches.opt_strs("emit") {
1572 for output_type in list.split(',') {
1573 let mut parts = output_type.splitn(2, '=');
1574 let shorthand = parts.next().unwrap();
1575 let output_type = match OutputType::from_shorthand(shorthand) {
1576 Some(output_type) => output_type,
1577 None => early_error(error_format, &format!(
1578 "unknown emission type: `{}` - expected one of: {}",
1579 shorthand, OutputType::shorthands_display(),
1582 let path = parts.next().map(PathBuf::from);
1583 output_types.insert(output_type, path);
1587 if output_types.is_empty() {
1588 output_types.insert(OutputType::Exe, None);
1591 let remap_path_prefix_sources = debugging_opts.remap_path_prefix_from.len();
1592 let remap_path_prefix_targets = debugging_opts.remap_path_prefix_from.len();
1594 if remap_path_prefix_targets < remap_path_prefix_sources {
1595 for source in &debugging_opts.remap_path_prefix_from[remap_path_prefix_targets..] {
1596 early_error(error_format,
1597 &format!("option `-Zremap-path-prefix-from='{}'` does not have \
1598 a corresponding `-Zremap-path-prefix-to`", source))
1600 } else if remap_path_prefix_targets > remap_path_prefix_sources {
1601 for target in &debugging_opts.remap_path_prefix_to[remap_path_prefix_sources..] {
1602 early_error(error_format,
1603 &format!("option `-Zremap-path-prefix-to='{}'` does not have \
1604 a corresponding `-Zremap-path-prefix-from`", target))
1608 let mut cg = build_codegen_options(matches, error_format);
1609 let mut codegen_units = cg.codegen_units;
1610 let mut thinlto = None;
1612 // Issue #30063: if user requests llvm-related output to one
1613 // particular path, disable codegen-units.
1614 let incompatible: Vec<_> = output_types.iter()
1615 .map(|ot_path| ot_path.0)
1617 !ot.is_compatible_with_codegen_units_and_single_output_file()
1619 .map(|ot| ot.shorthand())
1621 if !incompatible.is_empty() {
1622 match codegen_units {
1623 Some(n) if n > 1 => {
1624 if matches.opt_present("o") {
1625 for ot in &incompatible {
1626 early_warn(error_format, &format!("--emit={} with -o incompatible with \
1627 -C codegen-units=N for N > 1",
1630 early_warn(error_format, "resetting to default -C codegen-units=1");
1631 codegen_units = Some(1);
1632 thinlto = Some(false);
1636 codegen_units = Some(1);
1637 thinlto = Some(false);
1642 if codegen_units == Some(0) {
1643 early_error(error_format, "Value for codegen units must be a positive nonzero integer");
1646 if cg.lto && debugging_opts.incremental.is_some() {
1647 early_error(error_format, "can't perform LTO when compiling incrementally");
1650 let mut prints = Vec::<PrintRequest>::new();
1651 if cg.target_cpu.as_ref().map_or(false, |s| s == "help") {
1652 prints.push(PrintRequest::TargetCPUs);
1653 cg.target_cpu = None;
1655 if cg.target_feature == "help" {
1656 prints.push(PrintRequest::TargetFeatures);
1657 cg.target_feature = "".to_string();
1659 if cg.relocation_model.as_ref().map_or(false, |s| s == "help") {
1660 prints.push(PrintRequest::RelocationModels);
1661 cg.relocation_model = None;
1663 if cg.code_model.as_ref().map_or(false, |s| s == "help") {
1664 prints.push(PrintRequest::CodeModels);
1665 cg.code_model = None;
1667 if debugging_opts.tls_model.as_ref().map_or(false, |s| s == "help") {
1668 prints.push(PrintRequest::TlsModels);
1669 debugging_opts.tls_model = None;
1674 let sysroot_opt = matches.opt_str("sysroot").map(|m| PathBuf::from(&m));
1675 let target = matches.opt_str("target").unwrap_or(
1676 host_triple().to_string());
1678 if matches.opt_present("O") {
1679 if cg.opt_level.is_some() {
1680 early_error(error_format, "-O and -C opt-level both provided");
1684 match (cg.opt_level.as_ref().map(String::as_ref),
1685 nightly_options::is_nightly_build()) {
1686 (None, _) => OptLevel::No,
1687 (Some("0"), _) => OptLevel::No,
1688 (Some("1"), _) => OptLevel::Less,
1689 (Some("2"), _) => OptLevel::Default,
1690 (Some("3"), _) => OptLevel::Aggressive,
1691 (Some("s"), true) => OptLevel::Size,
1692 (Some("z"), true) => OptLevel::SizeMin,
1693 (Some("s"), false) | (Some("z"), false) => {
1694 early_error(error_format, &format!("the optimizations s or z are only \
1695 accepted on the nightly compiler"));
1698 early_error(error_format, &format!("optimization level needs to be \
1699 between 0-3 (instead was `{}`)",
1705 let debug_assertions = cg.debug_assertions.unwrap_or(opt_level == OptLevel::No);
1706 let debuginfo = if matches.opt_present("g") {
1707 if cg.debuginfo.is_some() {
1708 early_error(error_format, "-g and -C debuginfo both provided");
1712 match cg.debuginfo {
1713 None | Some(0) => NoDebugInfo,
1714 Some(1) => LimitedDebugInfo,
1715 Some(2) => FullDebugInfo,
1717 early_error(error_format, &format!("debug info level needs to be between \
1718 0-2 (instead was `{}`)",
1724 let mut search_paths = SearchPaths::new();
1725 for s in &matches.opt_strs("L") {
1726 search_paths.add_path(&s[..], error_format);
1729 let libs = matches.opt_strs("l").into_iter().map(|s| {
1730 // Parse string of the form "[KIND=]lib[:new_name]",
1731 // where KIND is one of "dylib", "framework", "static".
1732 let mut parts = s.splitn(2, '=');
1733 let kind = parts.next().unwrap();
1734 let (name, kind) = match (parts.next(), kind) {
1735 (None, name) => (name, None),
1736 (Some(name), "dylib") => (name, Some(cstore::NativeUnknown)),
1737 (Some(name), "framework") => (name, Some(cstore::NativeFramework)),
1738 (Some(name), "static") => (name, Some(cstore::NativeStatic)),
1739 (Some(name), "static-nobundle") => (name, Some(cstore::NativeStaticNobundle)),
1741 early_error(error_format, &format!("unknown library kind `{}`, expected \
1742 one of dylib, framework, or static",
1746 if kind == Some(cstore::NativeStaticNobundle) && !nightly_options::is_nightly_build() {
1747 early_error(error_format, &format!("the library kind 'static-nobundle' is only \
1748 accepted on the nightly compiler"));
1750 let mut name_parts = name.splitn(2, ':');
1751 let name = name_parts.next().unwrap();
1752 let new_name = name_parts.next();
1753 (name.to_string(), new_name.map(|n| n.to_string()), kind)
1756 let cfg = parse_cfgspecs(matches.opt_strs("cfg"));
1757 let test = matches.opt_present("test");
1759 prints.extend(matches.opt_strs("print").into_iter().map(|s| {
1761 "crate-name" => PrintRequest::CrateName,
1762 "file-names" => PrintRequest::FileNames,
1763 "sysroot" => PrintRequest::Sysroot,
1764 "cfg" => PrintRequest::Cfg,
1765 "target-list" => PrintRequest::TargetList,
1766 "target-cpus" => PrintRequest::TargetCPUs,
1767 "target-features" => PrintRequest::TargetFeatures,
1768 "relocation-models" => PrintRequest::RelocationModels,
1769 "code-models" => PrintRequest::CodeModels,
1770 "tls-models" => PrintRequest::TlsModels,
1771 "native-static-libs" => PrintRequest::NativeStaticLibs,
1772 "target-spec-json" => {
1773 if nightly_options::is_unstable_enabled(matches) {
1774 PrintRequest::TargetSpec
1776 early_error(error_format,
1777 &format!("the `-Z unstable-options` flag must also be passed to \
1778 enable the target-spec-json print option"));
1782 early_error(error_format, &format!("unknown print request `{}`", req))
1787 let borrowck_mode = match debugging_opts.borrowck.as_ref().map(|s| &s[..]) {
1788 None | Some("ast") => BorrowckMode::Ast,
1789 Some("mir") => BorrowckMode::Mir,
1790 Some("compare") => BorrowckMode::Compare,
1792 early_error(error_format, &format!("unknown borrowck mode `{}`", m))
1796 if !cg.remark.is_empty() && debuginfo == NoDebugInfo {
1797 early_warn(error_format, "-C remark will not show source locations without \
1801 let mut externs = BTreeMap::new();
1802 for arg in &matches.opt_strs("extern") {
1803 let mut parts = arg.splitn(2, '=');
1804 let name = match parts.next() {
1806 None => early_error(error_format, "--extern value must not be empty"),
1808 let location = match parts.next() {
1810 None => early_error(error_format, "--extern value must be of the format `foo=bar`"),
1813 externs.entry(name.to_string())
1814 .or_insert_with(BTreeSet::new)
1815 .insert(location.to_string());
1818 let crate_name = matches.opt_str("crate-name");
1820 let incremental = debugging_opts.incremental.as_ref().map(|m| PathBuf::from(m));
1824 optimize: opt_level,
1829 output_types: OutputTypes(output_types),
1831 maybe_sysroot: sysroot_opt,
1832 target_triple: target,
1840 externs: Externs(externs),
1844 unstable_features: UnstableFeatures::from_environment(),
1846 actually_rustdoc: false,
1847 cli_forced_codegen_units: codegen_units,
1848 cli_forced_thinlto: thinlto,
1853 pub fn parse_crate_types_from_list(list_list: Vec<String>)
1854 -> Result<Vec<CrateType>, String> {
1855 let mut crate_types: Vec<CrateType> = Vec::new();
1856 for unparsed_crate_type in &list_list {
1857 for part in unparsed_crate_type.split(',') {
1858 let new_part = match part {
1859 "lib" => default_lib_output(),
1860 "rlib" => CrateTypeRlib,
1861 "staticlib" => CrateTypeStaticlib,
1862 "dylib" => CrateTypeDylib,
1863 "cdylib" => CrateTypeCdylib,
1864 "bin" => CrateTypeExecutable,
1865 "proc-macro" => CrateTypeProcMacro,
1867 return Err(format!("unknown crate type: `{}`",
1871 if !crate_types.contains(&new_part) {
1872 crate_types.push(new_part)
1880 pub mod nightly_options {
1882 use syntax::feature_gate::UnstableFeatures;
1883 use super::{ErrorOutputType, OptionStability, RustcOptGroup};
1884 use session::early_error;
1886 pub fn is_unstable_enabled(matches: &getopts::Matches) -> bool {
1887 is_nightly_build() && matches.opt_strs("Z").iter().any(|x| *x == "unstable-options")
1890 pub fn is_nightly_build() -> bool {
1891 UnstableFeatures::from_environment().is_nightly_build()
1894 pub fn check_nightly_options(matches: &getopts::Matches, flags: &[RustcOptGroup]) {
1895 let has_z_unstable_option = matches.opt_strs("Z").iter().any(|x| *x == "unstable-options");
1896 let really_allows_unstable_options = UnstableFeatures::from_environment()
1897 .is_nightly_build();
1899 for opt in flags.iter() {
1900 if opt.stability == OptionStability::Stable {
1903 if !matches.opt_present(opt.name) {
1906 if opt.name != "Z" && !has_z_unstable_option {
1907 early_error(ErrorOutputType::default(),
1908 &format!("the `-Z unstable-options` flag must also be passed to enable \
1912 if really_allows_unstable_options {
1915 match opt.stability {
1916 OptionStability::Unstable => {
1917 let msg = format!("the option `{}` is only accepted on the \
1918 nightly compiler", opt.name);
1919 early_error(ErrorOutputType::default(), &msg);
1921 OptionStability::Stable => {}
1927 impl fmt::Display for CrateType {
1928 fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
1930 CrateTypeExecutable => "bin".fmt(f),
1931 CrateTypeDylib => "dylib".fmt(f),
1932 CrateTypeRlib => "rlib".fmt(f),
1933 CrateTypeStaticlib => "staticlib".fmt(f),
1934 CrateTypeCdylib => "cdylib".fmt(f),
1935 CrateTypeProcMacro => "proc-macro".fmt(f),
1940 /// Commandline arguments passed to the compiler have to be incorporated with
1941 /// the dependency tracking system for incremental compilation. This module
1942 /// provides some utilities to make this more convenient.
1944 /// The values of all commandline arguments that are relevant for dependency
1945 /// tracking are hashed into a single value that determines whether the
1946 /// incremental compilation cache can be re-used or not. This hashing is done
1947 /// via the DepTrackingHash trait defined below, since the standard Hash
1948 /// implementation might not be suitable (e.g. arguments are stored in a Vec,
1949 /// the hash of which is order dependent, but we might not want the order of
1950 /// arguments to make a difference for the hash).
1952 /// However, since the value provided by Hash::hash often *is* suitable,
1953 /// especially for primitive types, there is the
1954 /// impl_dep_tracking_hash_via_hash!() macro that allows to simply reuse the
1955 /// Hash implementation for DepTrackingHash. It's important though that
1956 /// we have an opt-in scheme here, so one is hopefully forced to think about
1957 /// how the hash should be calculated when adding a new commandline argument.
1961 use session::search_paths::{PathKind, SearchPaths};
1962 use std::collections::BTreeMap;
1963 use std::hash::Hash;
1964 use std::path::PathBuf;
1965 use std::collections::hash_map::DefaultHasher;
1966 use super::{Passes, CrateType, OptLevel, DebugInfoLevel,
1967 OutputTypes, Externs, ErrorOutputType, Sanitizer};
1968 use syntax::feature_gate::UnstableFeatures;
1969 use rustc_back::{PanicStrategy, RelroLevel};
1971 pub trait DepTrackingHash {
1972 fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType);
1975 macro_rules! impl_dep_tracking_hash_via_hash {
1977 impl DepTrackingHash for $t {
1978 fn hash(&self, hasher: &mut DefaultHasher, _: ErrorOutputType) {
1979 Hash::hash(self, hasher);
1985 macro_rules! impl_dep_tracking_hash_for_sortable_vec_of {
1987 impl DepTrackingHash for Vec<$t> {
1988 fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType) {
1989 let mut elems: Vec<&$t> = self.iter().collect();
1991 Hash::hash(&elems.len(), hasher);
1992 for (index, elem) in elems.iter().enumerate() {
1993 Hash::hash(&index, hasher);
1994 DepTrackingHash::hash(*elem, hasher, error_format);
2001 impl_dep_tracking_hash_via_hash!(bool);
2002 impl_dep_tracking_hash_via_hash!(usize);
2003 impl_dep_tracking_hash_via_hash!(u64);
2004 impl_dep_tracking_hash_via_hash!(String);
2005 impl_dep_tracking_hash_via_hash!(lint::Level);
2006 impl_dep_tracking_hash_via_hash!(Option<bool>);
2007 impl_dep_tracking_hash_via_hash!(Option<usize>);
2008 impl_dep_tracking_hash_via_hash!(Option<String>);
2009 impl_dep_tracking_hash_via_hash!(Option<(String, u64)>);
2010 impl_dep_tracking_hash_via_hash!(Option<PanicStrategy>);
2011 impl_dep_tracking_hash_via_hash!(Option<RelroLevel>);
2012 impl_dep_tracking_hash_via_hash!(Option<lint::Level>);
2013 impl_dep_tracking_hash_via_hash!(Option<PathBuf>);
2014 impl_dep_tracking_hash_via_hash!(Option<cstore::NativeLibraryKind>);
2015 impl_dep_tracking_hash_via_hash!(CrateType);
2016 impl_dep_tracking_hash_via_hash!(PanicStrategy);
2017 impl_dep_tracking_hash_via_hash!(RelroLevel);
2018 impl_dep_tracking_hash_via_hash!(Passes);
2019 impl_dep_tracking_hash_via_hash!(OptLevel);
2020 impl_dep_tracking_hash_via_hash!(DebugInfoLevel);
2021 impl_dep_tracking_hash_via_hash!(UnstableFeatures);
2022 impl_dep_tracking_hash_via_hash!(Externs);
2023 impl_dep_tracking_hash_via_hash!(OutputTypes);
2024 impl_dep_tracking_hash_via_hash!(cstore::NativeLibraryKind);
2025 impl_dep_tracking_hash_via_hash!(Sanitizer);
2026 impl_dep_tracking_hash_via_hash!(Option<Sanitizer>);
2028 impl_dep_tracking_hash_for_sortable_vec_of!(String);
2029 impl_dep_tracking_hash_for_sortable_vec_of!(CrateType);
2030 impl_dep_tracking_hash_for_sortable_vec_of!((String, lint::Level));
2031 impl_dep_tracking_hash_for_sortable_vec_of!((String, Option<String>,
2032 Option<cstore::NativeLibraryKind>));
2033 impl_dep_tracking_hash_for_sortable_vec_of!((String, u64));
2034 impl DepTrackingHash for SearchPaths {
2035 fn hash(&self, hasher: &mut DefaultHasher, _: ErrorOutputType) {
2036 let mut elems: Vec<_> = self
2037 .iter(PathKind::All)
2040 Hash::hash(&elems, hasher);
2044 impl<T1, T2> DepTrackingHash for (T1, T2)
2045 where T1: DepTrackingHash,
2048 fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType) {
2049 Hash::hash(&0, hasher);
2050 DepTrackingHash::hash(&self.0, hasher, error_format);
2051 Hash::hash(&1, hasher);
2052 DepTrackingHash::hash(&self.1, hasher, error_format);
2056 impl<T1, T2, T3> DepTrackingHash for (T1, T2, T3)
2057 where T1: DepTrackingHash,
2058 T2: DepTrackingHash,
2061 fn hash(&self, hasher: &mut DefaultHasher, error_format: ErrorOutputType) {
2062 Hash::hash(&0, hasher);
2063 DepTrackingHash::hash(&self.0, hasher, error_format);
2064 Hash::hash(&1, hasher);
2065 DepTrackingHash::hash(&self.1, hasher, error_format);
2066 Hash::hash(&2, hasher);
2067 DepTrackingHash::hash(&self.2, hasher, error_format);
2071 // This is a stable hash because BTreeMap is a sorted container
2072 pub fn stable_hash(sub_hashes: BTreeMap<&'static str, &DepTrackingHash>,
2073 hasher: &mut DefaultHasher,
2074 error_format: ErrorOutputType) {
2075 for (key, sub_hash) in sub_hashes {
2076 // Using Hash::hash() instead of DepTrackingHash::hash() is fine for
2077 // the keys, as they are just plain strings
2078 Hash::hash(&key.len(), hasher);
2079 Hash::hash(key, hasher);
2080 sub_hash.hash(hasher, error_format);
2091 use session::config::{build_configuration, build_session_options_and_crate_config};
2092 use session::build_session;
2093 use std::collections::{BTreeMap, BTreeSet};
2094 use std::iter::FromIterator;
2095 use std::path::PathBuf;
2096 use super::{OutputType, OutputTypes, Externs};
2097 use rustc_back::{PanicStrategy, RelroLevel};
2098 use syntax::symbol::Symbol;
2100 fn optgroups() -> getopts::Options {
2101 let mut opts = getopts::Options::new();
2102 for group in super::rustc_optgroups() {
2103 (group.apply)(&mut opts);
2108 fn mk_map<K: Ord, V>(entries: Vec<(K, V)>) -> BTreeMap<K, V> {
2109 BTreeMap::from_iter(entries.into_iter())
2112 fn mk_set<V: Ord>(entries: Vec<V>) -> BTreeSet<V> {
2113 BTreeSet::from_iter(entries.into_iter())
2116 // When the user supplies --test we should implicitly supply --cfg test
2118 fn test_switch_implies_cfg_test() {
2120 &match optgroups().parse(&["--test".to_string()]) {
2122 Err(f) => panic!("test_switch_implies_cfg_test: {}", f)
2124 let registry = errors::registry::Registry::new(&[]);
2125 let (sessopts, cfg) = build_session_options_and_crate_config(matches);
2126 let sess = build_session(sessopts, None, registry);
2127 let cfg = build_configuration(&sess, cfg);
2128 assert!(cfg.contains(&(Symbol::intern("test"), None)));
2131 // When the user supplies --test and --cfg test, don't implicitly add
2132 // another --cfg test
2134 fn test_switch_implies_cfg_test_unless_cfg_test() {
2136 &match optgroups().parse(&["--test".to_string(), "--cfg=test".to_string()]) {
2139 panic!("test_switch_implies_cfg_test_unless_cfg_test: {}", f)
2142 let registry = errors::registry::Registry::new(&[]);
2143 let (sessopts, cfg) = build_session_options_and_crate_config(matches);
2144 let sess = build_session(sessopts, None, registry);
2145 let cfg = build_configuration(&sess, cfg);
2146 let mut test_items = cfg.iter().filter(|&&(name, _)| name == "test");
2147 assert!(test_items.next().is_some());
2148 assert!(test_items.next().is_none());
2152 fn test_can_print_warnings() {
2154 let matches = optgroups().parse(&[
2155 "-Awarnings".to_string()
2157 let registry = errors::registry::Registry::new(&[]);
2158 let (sessopts, _) = build_session_options_and_crate_config(&matches);
2159 let sess = build_session(sessopts, None, registry);
2160 assert!(!sess.diagnostic().flags.can_emit_warnings);
2164 let matches = optgroups().parse(&[
2165 "-Awarnings".to_string(),
2166 "-Dwarnings".to_string()
2168 let registry = errors::registry::Registry::new(&[]);
2169 let (sessopts, _) = build_session_options_and_crate_config(&matches);
2170 let sess = build_session(sessopts, None, registry);
2171 assert!(sess.diagnostic().flags.can_emit_warnings);
2175 let matches = optgroups().parse(&[
2176 "-Adead_code".to_string()
2178 let registry = errors::registry::Registry::new(&[]);
2179 let (sessopts, _) = build_session_options_and_crate_config(&matches);
2180 let sess = build_session(sessopts, None, registry);
2181 assert!(sess.diagnostic().flags.can_emit_warnings);
2186 fn test_output_types_tracking_hash_different_paths() {
2187 let mut v1 = super::basic_options();
2188 let mut v2 = super::basic_options();
2189 let mut v3 = super::basic_options();
2191 v1.output_types = OutputTypes::new(&[(OutputType::Exe,
2192 Some(PathBuf::from("./some/thing")))]);
2193 v2.output_types = OutputTypes::new(&[(OutputType::Exe,
2194 Some(PathBuf::from("/some/thing")))]);
2195 v3.output_types = OutputTypes::new(&[(OutputType::Exe, None)]);
2197 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
2198 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
2199 assert!(v2.dep_tracking_hash() != v3.dep_tracking_hash());
2202 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2203 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2204 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2208 fn test_output_types_tracking_hash_different_construction_order() {
2209 let mut v1 = super::basic_options();
2210 let mut v2 = super::basic_options();
2212 v1.output_types = OutputTypes::new(&[
2213 (OutputType::Exe, Some(PathBuf::from("./some/thing"))),
2214 (OutputType::Bitcode, Some(PathBuf::from("./some/thing.bc"))),
2217 v2.output_types = OutputTypes::new(&[
2218 (OutputType::Bitcode, Some(PathBuf::from("./some/thing.bc"))),
2219 (OutputType::Exe, Some(PathBuf::from("./some/thing"))),
2222 assert_eq!(v1.dep_tracking_hash(), v2.dep_tracking_hash());
2225 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2229 fn test_externs_tracking_hash_different_values() {
2230 let mut v1 = super::basic_options();
2231 let mut v2 = super::basic_options();
2232 let mut v3 = super::basic_options();
2234 v1.externs = Externs::new(mk_map(vec![
2235 (String::from("a"), mk_set(vec![String::from("b"),
2236 String::from("c")])),
2237 (String::from("d"), mk_set(vec![String::from("e"),
2238 String::from("f")])),
2241 v2.externs = Externs::new(mk_map(vec![
2242 (String::from("a"), mk_set(vec![String::from("b"),
2243 String::from("c")])),
2244 (String::from("X"), mk_set(vec![String::from("e"),
2245 String::from("f")])),
2248 v3.externs = Externs::new(mk_map(vec![
2249 (String::from("a"), mk_set(vec![String::from("b"),
2250 String::from("c")])),
2251 (String::from("d"), mk_set(vec![String::from("X"),
2252 String::from("f")])),
2255 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
2256 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
2257 assert!(v2.dep_tracking_hash() != v3.dep_tracking_hash());
2260 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2261 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2262 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2266 fn test_externs_tracking_hash_different_construction_order() {
2267 let mut v1 = super::basic_options();
2268 let mut v2 = super::basic_options();
2269 let mut v3 = super::basic_options();
2271 v1.externs = Externs::new(mk_map(vec![
2272 (String::from("a"), mk_set(vec![String::from("b"),
2273 String::from("c")])),
2274 (String::from("d"), mk_set(vec![String::from("e"),
2275 String::from("f")])),
2278 v2.externs = Externs::new(mk_map(vec![
2279 (String::from("d"), mk_set(vec![String::from("e"),
2280 String::from("f")])),
2281 (String::from("a"), mk_set(vec![String::from("b"),
2282 String::from("c")])),
2285 v3.externs = Externs::new(mk_map(vec![
2286 (String::from("a"), mk_set(vec![String::from("b"),
2287 String::from("c")])),
2288 (String::from("d"), mk_set(vec![String::from("f"),
2289 String::from("e")])),
2292 assert_eq!(v1.dep_tracking_hash(), v2.dep_tracking_hash());
2293 assert_eq!(v1.dep_tracking_hash(), v3.dep_tracking_hash());
2294 assert_eq!(v2.dep_tracking_hash(), v3.dep_tracking_hash());
2297 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2298 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2299 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2303 fn test_lints_tracking_hash_different_values() {
2304 let mut v1 = super::basic_options();
2305 let mut v2 = super::basic_options();
2306 let mut v3 = super::basic_options();
2308 v1.lint_opts = vec![(String::from("a"), lint::Allow),
2309 (String::from("b"), lint::Warn),
2310 (String::from("c"), lint::Deny),
2311 (String::from("d"), lint::Forbid)];
2313 v2.lint_opts = vec![(String::from("a"), lint::Allow),
2314 (String::from("b"), lint::Warn),
2315 (String::from("X"), lint::Deny),
2316 (String::from("d"), lint::Forbid)];
2318 v3.lint_opts = vec![(String::from("a"), lint::Allow),
2319 (String::from("b"), lint::Warn),
2320 (String::from("c"), lint::Forbid),
2321 (String::from("d"), lint::Deny)];
2323 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
2324 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
2325 assert!(v2.dep_tracking_hash() != v3.dep_tracking_hash());
2328 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2329 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2330 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2334 fn test_lints_tracking_hash_different_construction_order() {
2335 let mut v1 = super::basic_options();
2336 let mut v2 = super::basic_options();
2338 v1.lint_opts = vec![(String::from("a"), lint::Allow),
2339 (String::from("b"), lint::Warn),
2340 (String::from("c"), lint::Deny),
2341 (String::from("d"), lint::Forbid)];
2343 v2.lint_opts = vec![(String::from("a"), lint::Allow),
2344 (String::from("c"), lint::Deny),
2345 (String::from("b"), lint::Warn),
2346 (String::from("d"), lint::Forbid)];
2348 assert_eq!(v1.dep_tracking_hash(), v2.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());
2356 fn test_search_paths_tracking_hash_different_values() {
2357 let mut v1 = super::basic_options();
2358 let mut v2 = super::basic_options();
2359 let mut v3 = super::basic_options();
2360 let mut v4 = super::basic_options();
2361 let mut v5 = super::basic_options();
2364 v1.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2365 v1.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2366 v1.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2367 v1.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2368 v1.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2371 v2.search_paths.add_path("native=XXX", super::ErrorOutputType::Json(false));
2372 v2.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2373 v2.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2374 v2.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2375 v2.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2378 v2.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2379 v2.search_paths.add_path("crate=XXX", super::ErrorOutputType::Json(false));
2380 v2.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2381 v2.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2382 v2.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2384 // Dependency changed
2385 v3.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2386 v3.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2387 v3.search_paths.add_path("dependency=XXX", super::ErrorOutputType::Json(false));
2388 v3.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2389 v3.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2391 // Framework changed
2392 v4.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2393 v4.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2394 v4.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2395 v4.search_paths.add_path("framework=XXX", super::ErrorOutputType::Json(false));
2396 v4.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2399 v5.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2400 v5.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2401 v5.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2402 v5.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2403 v5.search_paths.add_path("all=XXX", super::ErrorOutputType::Json(false));
2405 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
2406 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
2407 assert!(v1.dep_tracking_hash() != v4.dep_tracking_hash());
2408 assert!(v1.dep_tracking_hash() != v5.dep_tracking_hash());
2411 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2412 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2413 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2414 assert_eq!(v4.dep_tracking_hash(), v4.clone().dep_tracking_hash());
2415 assert_eq!(v5.dep_tracking_hash(), v5.clone().dep_tracking_hash());
2419 fn test_search_paths_tracking_hash_different_order() {
2420 let mut v1 = super::basic_options();
2421 let mut v2 = super::basic_options();
2422 let mut v3 = super::basic_options();
2423 let mut v4 = super::basic_options();
2426 v1.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2427 v1.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2428 v1.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2429 v1.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2430 v1.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2432 v2.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2433 v2.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2434 v2.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2435 v2.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2436 v2.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2438 v3.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2439 v3.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2440 v3.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2441 v3.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2442 v3.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2444 v4.search_paths.add_path("all=mno", super::ErrorOutputType::Json(false));
2445 v4.search_paths.add_path("native=abc", super::ErrorOutputType::Json(false));
2446 v4.search_paths.add_path("crate=def", super::ErrorOutputType::Json(false));
2447 v4.search_paths.add_path("dependency=ghi", super::ErrorOutputType::Json(false));
2448 v4.search_paths.add_path("framework=jkl", super::ErrorOutputType::Json(false));
2450 assert!(v1.dep_tracking_hash() == v2.dep_tracking_hash());
2451 assert!(v1.dep_tracking_hash() == v3.dep_tracking_hash());
2452 assert!(v1.dep_tracking_hash() == v4.dep_tracking_hash());
2455 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2456 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2457 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2458 assert_eq!(v4.dep_tracking_hash(), v4.clone().dep_tracking_hash());
2462 fn test_native_libs_tracking_hash_different_values() {
2463 let mut v1 = super::basic_options();
2464 let mut v2 = super::basic_options();
2465 let mut v3 = super::basic_options();
2466 let mut v4 = super::basic_options();
2469 v1.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2470 (String::from("b"), None, Some(cstore::NativeFramework)),
2471 (String::from("c"), None, Some(cstore::NativeUnknown))];
2474 v2.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2475 (String::from("X"), None, Some(cstore::NativeFramework)),
2476 (String::from("c"), None, Some(cstore::NativeUnknown))];
2479 v3.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2480 (String::from("b"), None, Some(cstore::NativeStatic)),
2481 (String::from("c"), None, Some(cstore::NativeUnknown))];
2484 v4.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2485 (String::from("b"), Some(String::from("X")), Some(cstore::NativeFramework)),
2486 (String::from("c"), None, Some(cstore::NativeUnknown))];
2488 assert!(v1.dep_tracking_hash() != v2.dep_tracking_hash());
2489 assert!(v1.dep_tracking_hash() != v3.dep_tracking_hash());
2490 assert!(v1.dep_tracking_hash() != v4.dep_tracking_hash());
2493 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2494 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2495 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2496 assert_eq!(v4.dep_tracking_hash(), v4.clone().dep_tracking_hash());
2500 fn test_native_libs_tracking_hash_different_order() {
2501 let mut v1 = super::basic_options();
2502 let mut v2 = super::basic_options();
2503 let mut v3 = super::basic_options();
2506 v1.libs = vec![(String::from("a"), None, Some(cstore::NativeStatic)),
2507 (String::from("b"), None, Some(cstore::NativeFramework)),
2508 (String::from("c"), None, Some(cstore::NativeUnknown))];
2510 v2.libs = vec![(String::from("b"), None, Some(cstore::NativeFramework)),
2511 (String::from("a"), None, Some(cstore::NativeStatic)),
2512 (String::from("c"), None, Some(cstore::NativeUnknown))];
2514 v3.libs = vec![(String::from("c"), None, Some(cstore::NativeUnknown)),
2515 (String::from("a"), None, Some(cstore::NativeStatic)),
2516 (String::from("b"), None, Some(cstore::NativeFramework))];
2518 assert!(v1.dep_tracking_hash() == v2.dep_tracking_hash());
2519 assert!(v1.dep_tracking_hash() == v3.dep_tracking_hash());
2520 assert!(v2.dep_tracking_hash() == v3.dep_tracking_hash());
2523 assert_eq!(v1.dep_tracking_hash(), v1.clone().dep_tracking_hash());
2524 assert_eq!(v2.dep_tracking_hash(), v2.clone().dep_tracking_hash());
2525 assert_eq!(v3.dep_tracking_hash(), v3.clone().dep_tracking_hash());
2529 fn test_codegen_options_tracking_hash() {
2530 let reference = super::basic_options();
2531 let mut opts = super::basic_options();
2533 // Make sure the changing an [UNTRACKED] option leaves the hash unchanged
2534 opts.cg.ar = Some(String::from("abc"));
2535 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2537 opts.cg.linker = Some(String::from("linker"));
2538 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2540 opts.cg.link_args = Some(vec![String::from("abc"), String::from("def")]);
2541 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2543 opts.cg.link_dead_code = true;
2544 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2546 opts.cg.rpath = true;
2547 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2549 opts.cg.extra_filename = String::from("extra-filename");
2550 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2552 opts.cg.codegen_units = Some(42);
2553 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2555 opts.cg.remark = super::SomePasses(vec![String::from("pass1"),
2556 String::from("pass2")]);
2557 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2559 opts.cg.save_temps = true;
2560 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2563 // Make sure changing a [TRACKED] option changes the hash
2564 opts = reference.clone();
2566 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2568 opts = reference.clone();
2569 opts.cg.target_cpu = Some(String::from("abc"));
2570 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2572 opts = reference.clone();
2573 opts.cg.target_feature = String::from("all the features, all of them");
2574 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2576 opts = reference.clone();
2577 opts.cg.passes = vec![String::from("1"), String::from("2")];
2578 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2580 opts = reference.clone();
2581 opts.cg.llvm_args = vec![String::from("1"), String::from("2")];
2582 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2584 opts = reference.clone();
2585 opts.cg.overflow_checks = Some(true);
2586 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2588 opts = reference.clone();
2589 opts.cg.no_prepopulate_passes = true;
2590 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2592 opts = reference.clone();
2593 opts.cg.no_vectorize_loops = true;
2594 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2596 opts = reference.clone();
2597 opts.cg.no_vectorize_slp = true;
2598 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2600 opts = reference.clone();
2601 opts.cg.soft_float = true;
2602 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2604 opts = reference.clone();
2605 opts.cg.prefer_dynamic = true;
2606 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2608 opts = reference.clone();
2609 opts.cg.no_integrated_as = true;
2610 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2612 opts = reference.clone();
2613 opts.cg.no_redzone = Some(true);
2614 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2616 opts = reference.clone();
2617 opts.cg.relocation_model = Some(String::from("relocation model"));
2618 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2620 opts = reference.clone();
2621 opts.cg.code_model = Some(String::from("code model"));
2622 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2624 opts = reference.clone();
2625 opts.debugging_opts.tls_model = Some(String::from("tls model"));
2626 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2628 opts = reference.clone();
2629 opts.cg.metadata = vec![String::from("A"), String::from("B")];
2630 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2632 opts = reference.clone();
2633 opts.cg.debuginfo = Some(0xdeadbeef);
2634 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2636 opts = reference.clone();
2637 opts.cg.debuginfo = Some(0xba5eba11);
2638 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2640 opts = reference.clone();
2641 opts.cg.debug_assertions = Some(true);
2642 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2644 opts = reference.clone();
2645 opts.cg.inline_threshold = Some(0xf007ba11);
2646 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2648 opts = reference.clone();
2649 opts.cg.panic = Some(PanicStrategy::Abort);
2650 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2654 fn test_debugging_options_tracking_hash() {
2655 let reference = super::basic_options();
2656 let mut opts = super::basic_options();
2658 // Make sure the changing an [UNTRACKED] option leaves the hash unchanged
2659 opts.debugging_opts.verbose = true;
2660 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2661 opts.debugging_opts.time_passes = true;
2662 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2663 opts.debugging_opts.count_llvm_insns = true;
2664 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2665 opts.debugging_opts.time_llvm_passes = true;
2666 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2667 opts.debugging_opts.input_stats = true;
2668 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2669 opts.debugging_opts.trans_stats = true;
2670 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2671 opts.debugging_opts.borrowck_stats = true;
2672 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2673 opts.debugging_opts.debug_llvm = true;
2674 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2675 opts.debugging_opts.meta_stats = true;
2676 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2677 opts.debugging_opts.print_link_args = true;
2678 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2679 opts.debugging_opts.print_llvm_passes = true;
2680 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2681 opts.debugging_opts.ast_json = true;
2682 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2683 opts.debugging_opts.ast_json_noexpand = true;
2684 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2685 opts.debugging_opts.ls = true;
2686 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2687 opts.debugging_opts.save_analysis = true;
2688 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2689 opts.debugging_opts.print_move_fragments = true;
2690 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2691 opts.debugging_opts.flowgraph_print_loans = true;
2692 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2693 opts.debugging_opts.flowgraph_print_moves = true;
2694 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2695 opts.debugging_opts.flowgraph_print_assigns = true;
2696 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2697 opts.debugging_opts.flowgraph_print_all = true;
2698 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2699 opts.debugging_opts.print_region_graph = true;
2700 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2701 opts.debugging_opts.parse_only = true;
2702 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2703 opts.debugging_opts.incremental = Some(String::from("abc"));
2704 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2705 opts.debugging_opts.dump_dep_graph = true;
2706 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2707 opts.debugging_opts.query_dep_graph = true;
2708 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2709 opts.debugging_opts.no_analysis = true;
2710 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2711 opts.debugging_opts.unstable_options = true;
2712 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2713 opts.debugging_opts.trace_macros = true;
2714 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2715 opts.debugging_opts.keep_hygiene_data = true;
2716 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2717 opts.debugging_opts.keep_ast = true;
2718 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2719 opts.debugging_opts.print_trans_items = Some(String::from("abc"));
2720 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2721 opts.debugging_opts.dump_mir = Some(String::from("abc"));
2722 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2723 opts.debugging_opts.dump_mir_dir = Some(String::from("abc"));
2724 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2725 opts.debugging_opts.dump_mir_graphviz = true;
2726 assert_eq!(reference.dep_tracking_hash(), opts.dep_tracking_hash());
2728 // Make sure changing a [TRACKED] option changes the hash
2729 opts = reference.clone();
2730 opts.debugging_opts.asm_comments = true;
2731 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2733 opts = reference.clone();
2734 opts.debugging_opts.no_verify = true;
2735 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2737 opts = reference.clone();
2738 opts.debugging_opts.no_landing_pads = true;
2739 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2741 opts = reference.clone();
2742 opts.debugging_opts.no_trans = true;
2743 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2745 opts = reference.clone();
2746 opts.debugging_opts.treat_err_as_bug = true;
2747 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2749 opts = reference.clone();
2750 opts.debugging_opts.continue_parse_after_error = true;
2751 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2753 opts = reference.clone();
2754 opts.debugging_opts.extra_plugins = vec![String::from("plugin1"), String::from("plugin2")];
2755 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2757 opts = reference.clone();
2758 opts.debugging_opts.force_overflow_checks = Some(true);
2759 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2761 opts = reference.clone();
2762 opts.debugging_opts.enable_nonzeroing_move_hints = true;
2763 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2765 opts = reference.clone();
2766 opts.debugging_opts.show_span = Some(String::from("abc"));
2767 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2769 opts = reference.clone();
2770 opts.debugging_opts.mir_opt_level = 3;
2771 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());
2773 opts = reference.clone();
2774 opts.debugging_opts.relro_level = Some(RelroLevel::Full);
2775 assert!(reference.dep_tracking_hash() != opts.dep_tracking_hash());