2020-04-27 19:56:11 +02:00
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use rustc_ast as ast;
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2021-01-01 05:25:30 +01:00
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use rustc_data_structures::fx::FxHashMap;
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2019-12-22 23:42:04 +01:00
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use rustc_data_structures::sync::Lrc;
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2020-07-13 15:34:38 +02:00
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use rustc_errors::{ColorConfig, ErrorReported};
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2020-01-05 02:37:57 +01:00
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use rustc_hir as hir;
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2020-01-07 18:12:06 +01:00
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use rustc_hir::intravisit;
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2020-04-21 23:49:06 +02:00
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use rustc_hir::{HirId, CRATE_HIR_ID};
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2019-12-22 23:42:04 +01:00
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use rustc_interface::interface;
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2020-03-29 17:19:48 +02:00
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use rustc_middle::hir::map::Map;
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2020-04-21 23:49:06 +02:00
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use rustc_middle::ty::TyCtxt;
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2020-07-13 15:34:38 +02:00
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use rustc_session::config::{self, CrateType, ErrorOutputType};
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2020-05-02 00:30:23 +02:00
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use rustc_session::{lint, DiagnosticOutput, Session};
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2020-01-01 19:40:49 +01:00
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use rustc_span::edition::Edition;
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2020-01-01 19:25:28 +01:00
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use rustc_span::source_map::SourceMap;
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2020-01-01 19:30:57 +01:00
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use rustc_span::symbol::sym;
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2019-12-31 18:15:40 +01:00
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use rustc_span::{BytePos, FileName, Pos, Span, DUMMY_SP};
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2019-12-22 23:42:04 +01:00
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use rustc_target::spec::TargetTriple;
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2020-05-02 00:30:23 +02:00
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use tempfile::Builder as TempFileBuilder;
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2018-11-27 03:59:49 +01:00
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use std::env;
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2019-08-29 23:15:31 +02:00
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use std::io::{self, Write};
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use std::panic;
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2018-12-08 20:30:23 +01:00
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use std::path::PathBuf;
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2019-08-29 23:15:31 +02:00
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use std::process::{self, Command, Stdio};
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2018-11-27 03:59:49 +01:00
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use std::str;
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2013-12-22 20:23:04 +01:00
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2019-02-23 08:40:07 +01:00
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use crate::clean::Attributes;
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use crate::config::Options;
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2019-12-22 23:42:04 +01:00
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use crate::html::markdown::{self, ErrorCodes, Ignore, LangString};
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2020-12-30 20:11:15 +01:00
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use crate::lint::init_lints;
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2020-04-21 23:49:06 +02:00
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use crate::passes::span_of_attrs;
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2013-12-22 20:23:04 +01:00
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2015-04-07 03:39:39 +02:00
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#[derive(Clone, Default)]
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2020-11-14 23:59:58 +01:00
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crate struct TestOptions {
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2018-03-15 23:10:09 +01:00
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/// Whether to disable the default `extern crate my_crate;` when creating doctests.
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2020-11-14 23:59:58 +01:00
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crate no_crate_inject: bool,
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2018-03-15 23:10:09 +01:00
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/// Whether to emit compilation warnings when compiling doctests. Setting this will suppress
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/// the default `#![allow(unused)]`.
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2020-11-14 23:59:58 +01:00
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crate display_warnings: bool,
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2018-03-15 23:10:09 +01:00
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/// Additional crate-level attributes to add to doctests.
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2020-11-14 23:59:58 +01:00
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crate attrs: Vec<String>,
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2015-04-07 03:39:39 +02:00
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}
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2020-11-14 23:59:58 +01:00
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crate fn run(options: Options) -> Result<(), ErrorReported> {
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2018-10-30 19:35:10 +01:00
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let input = config::Input::File(options.input.clone());
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2013-12-22 20:23:04 +01:00
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2020-12-30 20:11:15 +01:00
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let invalid_codeblock_attributes_name = crate::lint::INVALID_CODEBLOCK_ATTRIBUTES.name;
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2020-04-21 23:49:06 +02:00
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2020-12-30 20:11:15 +01:00
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// See core::create_config for what's going on here.
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2020-12-30 05:16:16 +01:00
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let allowed_lints = vec![
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invalid_codeblock_attributes_name.to_owned(),
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lint::builtin::UNKNOWN_LINTS.name.to_owned(),
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lint::builtin::RENAMED_AND_REMOVED_LINTS.name.to_owned(),
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];
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2020-04-21 23:49:06 +02:00
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2020-07-07 17:12:44 +02:00
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let (lint_opts, lint_caps) = init_lints(allowed_lints, options.lint_opts.clone(), |lint| {
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2020-07-13 17:11:50 +02:00
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if lint.name == invalid_codeblock_attributes_name {
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2020-04-26 14:07:13 +02:00
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None
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} else {
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Some((lint.name_lower(), lint::Allow))
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}
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});
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2020-04-21 23:49:06 +02:00
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2020-05-02 00:30:23 +02:00
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let crate_types =
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if options.proc_macro_crate { vec![CrateType::ProcMacro] } else { vec![CrateType::Rlib] };
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2019-07-20 22:34:41 +02:00
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2014-05-06 13:38:01 +02:00
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let sessopts = config::Options {
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2019-06-02 13:39:50 +02:00
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maybe_sysroot: options.maybe_sysroot.clone(),
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2018-10-30 19:35:10 +01:00
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search_paths: options.libs.clone(),
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2019-07-20 22:34:41 +02:00
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crate_types,
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2020-04-21 23:49:06 +02:00
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lint_opts: if !options.display_warnings { lint_opts } else { vec![] },
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lint_cap: Some(options.lint_cap.clone().unwrap_or_else(|| lint::Forbid)),
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2018-10-30 19:35:10 +01:00
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cg: options.codegen_options.clone(),
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externs: options.externs.clone(),
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2020-10-10 20:27:52 +02:00
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unstable_features: options.render_options.unstable_features,
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2017-01-18 22:31:29 +01:00
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actually_rustdoc: true,
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2019-12-22 23:42:04 +01:00
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debugging_opts: config::DebuggingOptions { ..config::basic_debugging_options() },
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2018-10-30 19:35:10 +01:00
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edition: options.edition,
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2019-06-12 19:49:41 +02:00
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target_triple: options.target.clone(),
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2020-12-01 04:54:20 +01:00
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crate_name: options.crate_name.clone(),
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2018-07-26 20:36:11 +02:00
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..config::Options::default()
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2013-12-22 20:23:04 +01:00
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};
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2018-04-26 00:49:52 +02:00
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2019-09-25 17:08:40 +02:00
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let mut cfgs = options.cfgs.clone();
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2019-11-06 18:32:51 +01:00
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cfgs.push("doc".to_owned());
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2019-10-07 23:08:54 +02:00
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cfgs.push("doctest".to_owned());
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2018-12-08 20:30:23 +01:00
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let config = interface::Config {
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opts: sessopts,
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2019-10-11 23:48:16 +02:00
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crate_cfg: interface::parse_cfgspecs(cfgs),
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2018-12-08 20:30:23 +01:00
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input,
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input_path: None,
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output_file: None,
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output_dir: None,
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file_loader: None,
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diagnostic_output: DiagnosticOutput::Default,
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stderr: None,
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2020-04-21 23:49:06 +02:00
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lint_caps,
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2021-03-15 10:57:53 +01:00
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parse_sess_created: None,
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2020-12-30 20:11:15 +01:00
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register_lints: Some(box crate::lint::register_lints),
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2019-11-11 16:09:03 +01:00
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override_queries: None,
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2020-09-08 13:44:41 +02:00
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make_codegen_backend: None,
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2019-11-15 19:41:50 +01:00
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registry: rustc_driver::diagnostics_registry(),
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2018-12-08 20:30:23 +01:00
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};
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let mut test_args = options.test_args.clone();
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let display_warnings = options.display_warnings;
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2019-12-22 23:42:04 +01:00
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let tests = interface::run_compiler(config, |compiler| {
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compiler.enter(|queries| {
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2020-11-26 23:38:53 +01:00
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let _lower_to_hir = queries.lower_to_hir()?;
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2019-12-22 23:42:04 +01:00
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2020-11-26 23:38:53 +01:00
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let crate_name = queries.crate_name()?.peek().to_string();
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2019-12-22 23:42:04 +01:00
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let mut global_ctxt = queries.global_ctxt()?.take();
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2020-11-26 23:38:53 +01:00
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let collector = global_ctxt.enter(|tcx| {
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2019-12-22 23:42:04 +01:00
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let krate = tcx.hir().krate();
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2020-11-26 23:38:53 +01:00
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let crate_attrs = tcx.hir().attrs(CRATE_HIR_ID);
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let mut opts = scrape_test_config(crate_attrs);
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opts.display_warnings |= options.display_warnings;
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let enable_per_target_ignores = options.enable_per_target_ignores;
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let mut collector = Collector::new(
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crate_name,
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options,
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false,
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opts,
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Some(compiler.session().parse_sess.clone_source_map()),
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None,
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enable_per_target_ignores,
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);
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2020-04-21 23:49:06 +02:00
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2019-12-22 23:42:04 +01:00
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let mut hir_collector = HirCollector {
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sess: compiler.session(),
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collector: &mut collector,
|
2020-02-09 15:32:00 +01:00
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map: tcx.hir(),
|
2019-12-22 23:42:04 +01:00
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codes: ErrorCodes::from(
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compiler.session().opts.unstable_features.is_nightly_build(),
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),
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2020-04-21 23:49:06 +02:00
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tcx,
|
2019-12-22 23:42:04 +01:00
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};
|
2020-04-21 23:49:06 +02:00
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hir_collector.visit_testable(
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"".to_string(),
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CRATE_HIR_ID,
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krate.item.span,
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|this| {
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intravisit::walk_crate(this, krate);
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},
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);
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2020-11-26 23:38:53 +01:00
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collector
|
2018-04-26 00:49:52 +02:00
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});
|
2020-01-19 00:51:06 +01:00
|
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compiler.session().abort_if_errors();
|
2013-12-22 20:23:04 +01:00
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|
2019-12-22 23:42:04 +01:00
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let ret: Result<_, ErrorReported> = Ok(collector.tests);
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ret
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})
|
2020-01-19 00:51:06 +01:00
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});
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let tests = match tests {
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Ok(tests) => tests,
|
2020-08-05 03:25:57 +02:00
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Err(ErrorReported) => return Err(ErrorReported),
|
2020-01-19 00:51:06 +01:00
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};
|
2013-12-22 20:23:04 +01:00
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2018-12-08 20:30:23 +01:00
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test_args.insert(0, "rustdoctest".to_string());
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testing::test_main(
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&test_args,
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tests,
|
2019-12-22 23:42:04 +01:00
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Some(testing::Options::new().display_output(display_warnings)),
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2018-12-08 20:30:23 +01:00
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);
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|
2020-05-09 13:37:26 +02:00
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Ok(())
|
2013-12-22 20:23:04 +01:00
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}
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2018-11-27 03:59:49 +01:00
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// Look for `#![doc(test(no_crate_inject))]`, used by crates in the std facade.
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2020-11-26 23:38:53 +01:00
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fn scrape_test_config(attrs: &[ast::Attribute]) -> TestOptions {
|
2020-01-11 17:02:46 +01:00
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use rustc_ast_pretty::pprust;
|
2015-03-16 01:54:30 +01:00
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|
2019-12-22 23:42:04 +01:00
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let mut opts =
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TestOptions { no_crate_inject: false, display_warnings: false, attrs: Vec::new() };
|
2015-04-07 03:39:39 +02:00
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2020-11-26 23:38:53 +01:00
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let test_attrs: Vec<_> = attrs
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2019-12-22 23:42:04 +01:00
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.iter()
|
2020-08-02 12:17:20 +02:00
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.filter(|a| a.has_name(sym::doc))
|
2017-03-03 10:23:59 +01:00
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.flat_map(|a| a.meta_item_list().unwrap_or_else(Vec::new))
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2020-08-02 12:17:20 +02:00
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.filter(|a| a.has_name(sym::test))
|
2017-03-03 10:23:59 +01:00
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.collect();
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let attrs = test_attrs.iter().flat_map(|a| a.meta_item_list().unwrap_or(&[]));
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|
2015-04-07 03:39:39 +02:00
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for attr in attrs {
|
2020-08-02 12:17:20 +02:00
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if attr.has_name(sym::no_crate_inject) {
|
2015-04-07 03:39:39 +02:00
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opts.no_crate_inject = true;
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}
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2020-08-02 12:17:20 +02:00
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if attr.has_name(sym::attr) {
|
2015-04-07 03:39:39 +02:00
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if let Some(l) = attr.meta_item_list() {
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for item in l {
|
2016-08-20 03:58:14 +02:00
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opts.attrs.push(pprust::meta_list_item_to_string(item));
|
2015-03-16 01:54:30 +01:00
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}
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}
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}
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}
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|
2016-10-01 22:47:43 +02:00
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opts
|
2015-03-16 01:54:30 +01:00
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}
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|
2019-05-04 21:37:12 +02:00
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/// Documentation test failure modes.
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enum TestFailure {
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/// The test failed to compile.
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CompileError,
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/// The test is marked `compile_fail` but compiled successfully.
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UnexpectedCompilePass,
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/// The test failed to compile (as expected) but the compiler output did not contain all
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/// expected error codes.
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MissingErrorCodes(Vec<String>),
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/// The test binary was unable to be executed.
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ExecutionError(io::Error),
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|
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/// The test binary exited with a non-zero exit code.
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///
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/// This typically means an assertion in the test failed or another form of panic occurred.
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ExecutionFailure(process::Output),
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/// The test is marked `should_panic` but the test binary executed successfully.
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UnexpectedRunPass,
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}
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|
2020-03-01 10:34:08 +01:00
|
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enum DirState {
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Temp(tempfile::TempDir),
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Perm(PathBuf),
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}
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impl DirState {
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fn path(&self) -> &std::path::Path {
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match self {
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DirState::Temp(t) => t.path(),
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DirState::Perm(p) => p.as_path(),
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}
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}
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}
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|
2019-05-04 21:37:12 +02:00
|
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fn run_test(
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test: &str,
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cratename: &str,
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line: usize,
|
2019-08-29 23:15:31 +02:00
|
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options: Options,
|
2019-05-04 21:37:12 +02:00
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should_panic: bool,
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no_run: bool,
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as_test_harness: bool,
|
2019-04-26 22:52:56 +02:00
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runtool: Option<String>,
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runtool_args: Vec<String>,
|
2019-06-11 20:06:34 +02:00
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|
target: TargetTriple,
|
2019-05-04 21:37:12 +02:00
|
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|
compile_fail: bool,
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mut error_codes: Vec<String>,
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|
|
opts: &TestOptions,
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|
|
edition: Edition,
|
2020-03-01 10:34:08 +01:00
|
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|
outdir: DirState,
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path: PathBuf,
|
2020-12-06 13:57:37 +01:00
|
|
|
test_id: &str,
|
2019-05-04 21:37:12 +02:00
|
|
|
) -> Result<(), TestFailure> {
|
2020-11-11 16:44:02 +01:00
|
|
|
let (test, line_offset, supports_color) =
|
2020-12-06 13:57:37 +01:00
|
|
|
make_test(test, Some(cratename), as_test_harness, opts, edition, Some(test_id));
|
2019-04-23 23:39:26 +02:00
|
|
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|
2018-12-08 20:30:23 +01:00
|
|
|
let output_file = outdir.path().join("rust_out");
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|
|
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|
2019-12-22 23:42:04 +01:00
|
|
|
let rustc_binary = options
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|
|
|
.test_builder
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Fix clippy warnings
Fixes clippy::{cone_on_copy, filter_next, redundant_closure, single_char_pattern, len_zero,redundant_field_names, useless_format, identity_conversion, map_clone, into_iter_on_ref, needless_return, option_as_ref_deref, unused_unit, unnecessary_mut_passed}
2020-05-11 13:01:37 +02:00
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.as_deref()
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2019-12-22 23:42:04 +01:00
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.unwrap_or_else(|| rustc_interface::util::rustc_path().expect("found rustc"));
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2019-09-10 03:11:27 +02:00
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let mut compiler = Command::new(&rustc_binary);
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2019-08-29 23:15:31 +02:00
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compiler.arg("--crate-type").arg("bin");
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for cfg in &options.cfgs {
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compiler.arg("--cfg").arg(&cfg);
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}
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if let Some(sysroot) = options.maybe_sysroot {
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compiler.arg("--sysroot").arg(sysroot);
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}
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compiler.arg("--edition").arg(&edition.to_string());
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compiler.env("UNSTABLE_RUSTDOC_TEST_PATH", path);
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2019-12-22 23:42:04 +01:00
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compiler.env("UNSTABLE_RUSTDOC_TEST_LINE", format!("{}", line as isize - line_offset as isize));
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2019-08-29 23:15:31 +02:00
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compiler.arg("-o").arg(&output_file);
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if as_test_harness {
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compiler.arg("--test");
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}
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for lib_str in &options.lib_strs {
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compiler.arg("-L").arg(&lib_str);
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}
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for extern_str in &options.extern_strs {
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compiler.arg("--extern").arg(&extern_str);
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}
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2019-08-30 21:26:04 +02:00
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compiler.arg("-Ccodegen-units=1");
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2019-08-29 23:15:31 +02:00
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for codegen_options_str in &options.codegen_options_strs {
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compiler.arg("-C").arg(&codegen_options_str);
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}
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2020-08-25 15:22:26 +02:00
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for debugging_option_str in &options.debugging_opts_strs {
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2019-10-11 02:00:00 +02:00
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compiler.arg("-Z").arg(&debugging_option_str);
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}
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2020-01-30 15:49:21 +01:00
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if no_run && !compile_fail {
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2019-08-29 23:15:31 +02:00
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compiler.arg("--emit=metadata");
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}
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2020-04-10 21:15:10 +02:00
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compiler.arg("--target").arg(match target {
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TargetTriple::TargetTriple(s) => s,
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TargetTriple::TargetPath(path) => {
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path.to_str().expect("target path must be valid unicode").to_string()
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}
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});
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2020-11-11 16:44:02 +01:00
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if let ErrorOutputType::HumanReadable(kind) = options.error_format {
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2021-02-02 21:18:46 +01:00
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let (short, color_config) = kind.unzip();
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if short {
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compiler.arg("--error-format").arg("short");
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}
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2020-11-11 16:44:02 +01:00
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match color_config {
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ColorConfig::Never => {
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compiler.arg("--color").arg("never");
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}
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ColorConfig::Always => {
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compiler.arg("--color").arg("always");
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}
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ColorConfig::Auto => {
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compiler.arg("--color").arg(if supports_color { "always" } else { "never" });
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2020-07-13 15:34:38 +02:00
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}
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}
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}
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2017-07-02 15:09:09 +02:00
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2019-08-29 23:15:31 +02:00
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compiler.arg("-");
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compiler.stdin(Stdio::piped());
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compiler.stderr(Stdio::piped());
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let mut child = compiler.spawn().expect("Failed to spawn rustc process");
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{
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let stdin = child.stdin.as_mut().expect("Failed to open stdin");
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stdin.write_all(test.as_bytes()).expect("could write out test sources");
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}
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let output = child.wait_with_output().expect("Failed to read stdout");
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2018-07-10 02:11:06 +02:00
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2019-08-29 23:15:31 +02:00
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struct Bomb<'a>(&'a str);
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impl Drop for Bomb<'_> {
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fn drop(&mut self) {
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2019-12-22 23:42:04 +01:00
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eprint!("{}", self.0);
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2019-08-29 23:15:31 +02:00
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}
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}
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let out = str::from_utf8(&output.stderr).unwrap();
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let _bomb = Bomb(&out);
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match (output.status.success(), compile_fail) {
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(true, true) => {
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2019-05-04 21:37:12 +02:00
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return Err(TestFailure::UnexpectedCompilePass);
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2018-07-10 02:11:06 +02:00
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}
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2019-08-29 23:15:31 +02:00
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(true, false) => {}
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(false, true) => {
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2019-05-04 21:37:12 +02:00
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if !error_codes.is_empty() {
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2020-11-13 11:19:39 +01:00
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// We used to check if the output contained "error[{}]: " but since we added the
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// colored output, we can't anymore because of the color escape characters before
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// the ":".
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2020-07-14 14:44:12 +02:00
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error_codes.retain(|err| !out.contains(&format!("error[{}]", err)));
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2019-05-04 21:37:12 +02:00
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if !error_codes.is_empty() {
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return Err(TestFailure::MissingErrorCodes(error_codes));
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}
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2016-06-09 23:50:52 +02:00
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}
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}
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2019-08-29 23:15:31 +02:00
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(false, false) => {
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2019-05-04 21:37:12 +02:00
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return Err(TestFailure::CompileError);
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2017-07-02 15:09:09 +02:00
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}
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2018-07-10 02:11:06 +02:00
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}
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2016-06-09 23:50:52 +02:00
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2019-05-04 21:37:12 +02:00
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if no_run {
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return Ok(());
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2018-07-10 02:11:06 +02:00
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}
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2013-12-22 20:23:04 +01:00
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2014-02-28 21:33:49 +01:00
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// Run the code!
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2019-04-26 22:52:56 +02:00
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let mut cmd;
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if let Some(tool) = runtool {
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cmd = Command::new(tool);
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cmd.args(runtool_args);
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2020-04-10 21:15:10 +02:00
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cmd.arg(output_file);
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2019-06-07 01:01:53 +02:00
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} else {
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2019-04-26 22:52:56 +02:00
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cmd = Command::new(output_file);
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}
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2021-01-22 10:54:53 +01:00
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|
|
if let Some(run_directory) = options.test_run_directory {
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cmd.current_dir(run_directory);
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}
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2018-12-08 20:30:23 +01:00
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2014-07-02 22:50:45 +02:00
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match cmd.output() {
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2019-05-04 21:37:12 +02:00
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Err(e) => return Err(TestFailure::ExecutionError(e)),
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2014-01-30 20:30:21 +01:00
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|
Ok(out) => {
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2015-02-01 00:08:25 +01:00
|
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|
if should_panic && out.status.success() {
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2019-05-04 21:37:12 +02:00
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return Err(TestFailure::UnexpectedRunPass);
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2015-02-01 00:08:25 +01:00
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|
} else if !should_panic && !out.status.success() {
|
2019-05-04 21:37:12 +02:00
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|
|
return Err(TestFailure::ExecutionFailure(out));
|
2013-12-22 20:23:04 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2019-05-04 21:37:12 +02:00
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|
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Ok(())
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2013-12-22 20:23:04 +01:00
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|
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}
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|
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2019-04-23 23:39:26 +02:00
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/// Transforms a test into code that can be compiled into a Rust binary, and returns the number of
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2020-11-11 16:44:02 +01:00
|
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/// lines before the test code begins as well as if the output stream supports colors or not.
|
2020-11-14 23:59:58 +01:00
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|
|
crate fn make_test(
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2019-12-22 23:42:04 +01:00
|
|
|
s: &str,
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|
cratename: Option<&str>,
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|
|
dont_insert_main: bool,
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|
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opts: &TestOptions,
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|
|
edition: Edition,
|
2020-12-06 13:57:37 +01:00
|
|
|
test_id: Option<&str>,
|
2020-11-11 16:44:02 +01:00
|
|
|
) -> (String, usize, bool) {
|
2018-10-20 20:45:44 +02:00
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|
let (crate_attrs, everything_else, crates) = partition_source(s);
|
2018-02-09 16:24:23 +01:00
|
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|
let everything_else = everything_else.trim();
|
2018-01-08 15:47:23 +01:00
|
|
|
let mut line_offset = 0;
|
2014-06-06 18:12:18 +02:00
|
|
|
let mut prog = String::new();
|
2020-11-11 16:44:02 +01:00
|
|
|
let mut supports_color = false;
|
2015-03-12 21:01:06 +01:00
|
|
|
|
2018-03-15 23:10:09 +01:00
|
|
|
if opts.attrs.is_empty() && !opts.display_warnings {
|
2017-11-04 20:13:44 +01:00
|
|
|
// If there aren't any attributes supplied by #![doc(test(attr(...)))], then allow some
|
|
|
|
// lints that are commonly triggered in doctests. The crate-level test attributes are
|
|
|
|
// commonly used to make tests fail in case they trigger warnings, so having this there in
|
|
|
|
// that case may cause some tests to pass when they shouldn't have.
|
|
|
|
prog.push_str("#![allow(unused)]\n");
|
2018-01-08 15:47:23 +01:00
|
|
|
line_offset += 1;
|
2017-11-04 20:13:44 +01:00
|
|
|
}
|
2015-03-12 21:01:06 +01:00
|
|
|
|
2017-11-04 20:13:44 +01:00
|
|
|
// Next, any attributes that came from the crate root via #![doc(test(attr(...)))].
|
2015-04-07 03:39:39 +02:00
|
|
|
for attr in &opts.attrs {
|
|
|
|
prog.push_str(&format!("#![{}]\n", attr));
|
2018-01-08 15:47:23 +01:00
|
|
|
line_offset += 1;
|
2014-06-06 18:12:18 +02:00
|
|
|
}
|
2014-03-08 11:30:43 +01:00
|
|
|
|
2017-11-04 20:13:44 +01:00
|
|
|
// Now push any outer attributes from the example, assuming they
|
|
|
|
// are intended to be crate attributes.
|
|
|
|
prog.push_str(&crate_attrs);
|
2018-12-13 21:31:17 +01:00
|
|
|
prog.push_str(&crates);
|
2017-11-04 20:13:44 +01:00
|
|
|
|
2020-02-29 18:16:26 +01:00
|
|
|
// Uses librustc_ast to parse the doctest and find if there's a main fn and the extern
|
2018-10-06 01:22:19 +02:00
|
|
|
// crate already is included.
|
2020-01-03 00:34:00 +01:00
|
|
|
let result = rustc_driver::catch_fatal_errors(|| {
|
2020-07-30 03:27:50 +02:00
|
|
|
rustc_span::with_session_globals(edition, || {
|
2020-11-11 16:44:02 +01:00
|
|
|
use rustc_errors::emitter::{Emitter, EmitterWriter};
|
2020-01-09 11:18:47 +01:00
|
|
|
use rustc_errors::Handler;
|
2020-01-03 00:34:00 +01:00
|
|
|
use rustc_parse::maybe_new_parser_from_source_str;
|
2021-01-18 22:47:37 +01:00
|
|
|
use rustc_parse::parser::ForceCollect;
|
2020-01-11 15:03:15 +01:00
|
|
|
use rustc_session::parse::ParseSess;
|
2020-01-03 00:34:00 +01:00
|
|
|
use rustc_span::source_map::FilePathMapping;
|
|
|
|
|
|
|
|
let filename = FileName::anon_source_code(s);
|
2020-02-28 13:36:45 +01:00
|
|
|
let source = crates + everything_else;
|
2020-01-03 00:34:00 +01:00
|
|
|
|
|
|
|
// Any errors in parsing should also appear when the doctest is compiled for real, so just
|
2020-02-29 18:16:26 +01:00
|
|
|
// send all the errors that librustc_ast emits directly into a `Sink` instead of stderr.
|
2020-02-22 15:07:05 +01:00
|
|
|
let sm = Lrc::new(SourceMap::new(FilePathMapping::empty()));
|
2020-11-12 22:32:42 +01:00
|
|
|
supports_color =
|
|
|
|
EmitterWriter::stderr(ColorConfig::Auto, None, false, false, Some(80), false)
|
|
|
|
.supports_color();
|
|
|
|
|
2020-01-03 00:34:00 +01:00
|
|
|
let emitter =
|
|
|
|
EmitterWriter::new(box io::sink(), None, false, false, false, None, false);
|
2020-11-11 16:44:02 +01:00
|
|
|
|
2020-01-03 00:34:00 +01:00
|
|
|
// FIXME(misdreavus): pass `-Z treat-err-as-bug` to the doctest parser
|
|
|
|
let handler = Handler::with_emitter(false, None, box emitter);
|
2020-02-22 15:07:05 +01:00
|
|
|
let sess = ParseSess::with_span_handler(handler, sm);
|
2020-01-03 00:34:00 +01:00
|
|
|
|
|
|
|
let mut found_main = false;
|
|
|
|
let mut found_extern_crate = cratename.is_none();
|
|
|
|
let mut found_macro = false;
|
|
|
|
|
|
|
|
let mut parser = match maybe_new_parser_from_source_str(&sess, filename, source) {
|
|
|
|
Ok(p) => p,
|
|
|
|
Err(errs) => {
|
|
|
|
for mut err in errs {
|
|
|
|
err.cancel();
|
|
|
|
}
|
2018-11-01 17:57:29 +01:00
|
|
|
|
2020-01-03 00:34:00 +01:00
|
|
|
return (found_main, found_extern_crate, found_macro);
|
|
|
|
}
|
|
|
|
};
|
|
|
|
|
|
|
|
loop {
|
2021-01-18 22:47:37 +01:00
|
|
|
match parser.parse_item(ForceCollect::No) {
|
2020-01-03 00:34:00 +01:00
|
|
|
Ok(Some(item)) => {
|
|
|
|
if !found_main {
|
|
|
|
if let ast::ItemKind::Fn(..) = item.kind {
|
|
|
|
if item.ident.name == sym::main {
|
|
|
|
found_main = true;
|
|
|
|
}
|
2018-10-20 20:45:44 +02:00
|
|
|
}
|
|
|
|
}
|
2018-10-07 18:36:47 +02:00
|
|
|
|
2020-01-03 00:34:00 +01:00
|
|
|
if !found_extern_crate {
|
|
|
|
if let ast::ItemKind::ExternCrate(original) = item.kind {
|
|
|
|
// This code will never be reached if `cratename` is none because
|
|
|
|
// `found_extern_crate` is initialized to `true` if it is none.
|
|
|
|
let cratename = cratename.unwrap();
|
2018-10-20 20:45:44 +02:00
|
|
|
|
2020-01-03 00:34:00 +01:00
|
|
|
match original {
|
|
|
|
Some(name) => found_extern_crate = name.as_str() == cratename,
|
|
|
|
None => found_extern_crate = item.ident.as_str() == cratename,
|
|
|
|
}
|
2018-10-20 20:45:44 +02:00
|
|
|
}
|
|
|
|
}
|
2018-10-06 01:22:19 +02:00
|
|
|
|
2020-01-03 00:34:00 +01:00
|
|
|
if !found_macro {
|
2020-02-29 17:32:20 +01:00
|
|
|
if let ast::ItemKind::MacCall(..) = item.kind {
|
2020-01-03 00:34:00 +01:00
|
|
|
found_macro = true;
|
|
|
|
}
|
2018-12-20 22:10:07 +01:00
|
|
|
}
|
|
|
|
|
2020-01-03 00:34:00 +01:00
|
|
|
if found_main && found_extern_crate {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
Ok(None) => break,
|
|
|
|
Err(mut e) => {
|
|
|
|
e.cancel();
|
2018-10-20 20:45:44 +02:00
|
|
|
break;
|
2018-10-06 01:22:19 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2021-01-15 13:51:32 +01:00
|
|
|
// Reset errors so that they won't be reported as compiler bugs when dropping the
|
|
|
|
// handler. Any errors in the tests will be reported when the test file is compiled,
|
|
|
|
// Note that we still need to cancel the errors above otherwise `DiagnosticBuilder`
|
|
|
|
// will panic on drop.
|
|
|
|
sess.span_diagnostic.reset_err_count();
|
|
|
|
|
2020-01-03 00:34:00 +01:00
|
|
|
(found_main, found_extern_crate, found_macro)
|
|
|
|
})
|
2018-10-06 01:22:19 +02:00
|
|
|
});
|
2020-01-03 00:34:00 +01:00
|
|
|
let (already_has_main, already_has_extern_crate, found_macro) = match result {
|
|
|
|
Ok(result) => result,
|
|
|
|
Err(ErrorReported) => {
|
|
|
|
// If the parser panicked due to a fatal error, pass the test code through unchanged.
|
|
|
|
// The error will be reported during compilation.
|
2020-11-11 16:44:02 +01:00
|
|
|
return (s.to_owned(), 0, false);
|
2020-01-03 00:34:00 +01:00
|
|
|
}
|
|
|
|
};
|
2018-10-06 01:22:19 +02:00
|
|
|
|
2018-12-20 22:10:07 +01:00
|
|
|
// If a doctest's `fn main` is being masked by a wrapper macro, the parsing loop above won't
|
|
|
|
// see it. In that case, run the old text-based scan to see if they at least have a main
|
|
|
|
// function written inside a macro invocation. See
|
|
|
|
// https://github.com/rust-lang/rust/issues/56898
|
|
|
|
let already_has_main = if found_macro && !already_has_main {
|
|
|
|
s.lines()
|
|
|
|
.map(|line| {
|
|
|
|
let comment = line.find("//");
|
2019-12-22 23:42:04 +01:00
|
|
|
if let Some(comment_begins) = comment { &line[0..comment_begins] } else { line }
|
2018-12-20 22:10:07 +01:00
|
|
|
})
|
|
|
|
.any(|code| code.contains("fn main"))
|
|
|
|
} else {
|
|
|
|
already_has_main
|
|
|
|
};
|
|
|
|
|
2014-06-18 10:07:59 +02:00
|
|
|
// Don't inject `extern crate std` because it's already injected by the
|
|
|
|
// compiler.
|
2018-10-06 01:22:19 +02:00
|
|
|
if !already_has_extern_crate && !opts.no_crate_inject && cratename != Some("std") {
|
2016-02-28 12:11:13 +01:00
|
|
|
if let Some(cratename) = cratename {
|
2020-12-06 23:56:01 +01:00
|
|
|
// Don't inject `extern crate` if the crate is never used.
|
|
|
|
// NOTE: this is terribly inaccurate because it doesn't actually
|
|
|
|
// parse the source, but only has false positives, not false
|
|
|
|
// negatives.
|
2016-02-28 12:11:13 +01:00
|
|
|
if s.contains(cratename) {
|
2020-12-06 23:56:01 +01:00
|
|
|
prog.push_str(&format!("extern crate r#{};\n", cratename));
|
2018-01-08 15:47:23 +01:00
|
|
|
line_offset += 1;
|
2014-06-06 18:12:18 +02:00
|
|
|
}
|
2014-02-18 05:43:32 +01:00
|
|
|
}
|
2013-12-22 20:23:04 +01:00
|
|
|
}
|
2017-09-20 07:58:33 +02:00
|
|
|
|
2018-12-03 18:16:20 +01:00
|
|
|
// FIXME: This code cannot yet handle no_std test cases yet
|
|
|
|
if dont_insert_main || already_has_main || prog.contains("![no_std]") {
|
2018-02-09 16:24:23 +01:00
|
|
|
prog.push_str(everything_else);
|
2013-12-22 20:23:04 +01:00
|
|
|
} else {
|
2018-12-03 18:16:20 +01:00
|
|
|
let returns_result = everything_else.trim_end().ends_with("(())");
|
2020-12-06 13:57:37 +01:00
|
|
|
// Give each doctest main function a unique name.
|
|
|
|
// This is for example needed for the tooling around `-Z instrument-coverage`.
|
|
|
|
let inner_fn_name = if let Some(test_id) = test_id {
|
|
|
|
format!("_doctest_main_{}", test_id)
|
|
|
|
} else {
|
|
|
|
"_inner".into()
|
|
|
|
};
|
2020-12-20 10:00:32 +01:00
|
|
|
let inner_attr = if test_id.is_some() { "#[allow(non_snake_case)] " } else { "" };
|
2018-12-03 18:16:20 +01:00
|
|
|
let (main_pre, main_post) = if returns_result {
|
2019-12-22 23:42:04 +01:00
|
|
|
(
|
2020-12-06 13:57:37 +01:00
|
|
|
format!(
|
2020-12-20 10:00:32 +01:00
|
|
|
"fn main() {{ {}fn {}() -> Result<(), impl core::fmt::Debug> {{\n",
|
|
|
|
inner_attr, inner_fn_name
|
2020-12-06 13:57:37 +01:00
|
|
|
),
|
2020-12-28 20:44:33 +01:00
|
|
|
format!("\n}} {}().unwrap() }}", inner_fn_name),
|
2020-12-06 13:57:37 +01:00
|
|
|
)
|
|
|
|
} else if test_id.is_some() {
|
|
|
|
(
|
2020-12-20 10:00:32 +01:00
|
|
|
format!("fn main() {{ {}fn {}() {{\n", inner_attr, inner_fn_name),
|
2020-12-28 20:44:33 +01:00
|
|
|
format!("\n}} {}() }}", inner_fn_name),
|
2019-12-22 23:42:04 +01:00
|
|
|
)
|
2018-12-03 18:16:20 +01:00
|
|
|
} else {
|
2020-12-06 13:57:37 +01:00
|
|
|
("fn main() {\n".into(), "\n}".into())
|
2018-12-03 18:16:20 +01:00
|
|
|
};
|
2020-12-06 13:57:37 +01:00
|
|
|
// Note on newlines: We insert a line/newline *before*, and *after*
|
|
|
|
// the doctest and adjust the `line_offset` accordingly.
|
|
|
|
// In the case of `-Z instrument-coverage`, this means that the generated
|
|
|
|
// inner `main` function spans from the doctest opening codeblock to the
|
|
|
|
// closing one. For example
|
|
|
|
// /// ``` <- start of the inner main
|
|
|
|
// /// <- code under doctest
|
|
|
|
// /// ``` <- end of the inner main
|
2018-01-08 15:47:23 +01:00
|
|
|
line_offset += 1;
|
2020-12-06 13:57:37 +01:00
|
|
|
|
|
|
|
prog.extend([&main_pre, everything_else, &main_post].iter().cloned());
|
2013-12-22 20:23:04 +01:00
|
|
|
}
|
|
|
|
|
2018-12-13 21:31:17 +01:00
|
|
|
debug!("final doctest:\n{}", prog);
|
|
|
|
|
2020-11-11 16:44:02 +01:00
|
|
|
(prog, line_offset, supports_color)
|
2013-12-22 20:23:04 +01:00
|
|
|
}
|
|
|
|
|
2016-12-04 20:07:27 +01:00
|
|
|
// FIXME(aburka): use a real parser to deal with multiline attributes
|
2018-10-20 20:45:44 +02:00
|
|
|
fn partition_source(s: &str) -> (String, String, String) {
|
2018-12-13 21:31:42 +01:00
|
|
|
#[derive(Copy, Clone, PartialEq)]
|
|
|
|
enum PartitionState {
|
|
|
|
Attrs,
|
|
|
|
Crates,
|
|
|
|
Other,
|
|
|
|
}
|
|
|
|
let mut state = PartitionState::Attrs;
|
2015-03-12 21:01:06 +01:00
|
|
|
let mut before = String::new();
|
2018-10-20 20:45:44 +02:00
|
|
|
let mut crates = String::new();
|
2015-03-12 21:01:06 +01:00
|
|
|
let mut after = String::new();
|
|
|
|
|
|
|
|
for line in s.lines() {
|
2015-03-16 01:54:30 +01:00
|
|
|
let trimline = line.trim();
|
2018-12-13 21:31:42 +01:00
|
|
|
|
|
|
|
// FIXME(misdreavus): if a doc comment is placed on an extern crate statement, it will be
|
|
|
|
// shunted into "everything else"
|
|
|
|
match state {
|
|
|
|
PartitionState::Attrs => {
|
2019-12-22 23:42:04 +01:00
|
|
|
state = if trimline.starts_with("#![")
|
|
|
|
|| trimline.chars().all(|c| c.is_whitespace())
|
|
|
|
|| (trimline.starts_with("//") && !trimline.starts_with("///"))
|
2018-12-13 21:31:42 +01:00
|
|
|
{
|
|
|
|
PartitionState::Attrs
|
2019-12-22 23:42:04 +01:00
|
|
|
} else if trimline.starts_with("extern crate")
|
|
|
|
|| trimline.starts_with("#[macro_use] extern crate")
|
2018-12-13 21:31:42 +01:00
|
|
|
{
|
|
|
|
PartitionState::Crates
|
|
|
|
} else {
|
|
|
|
PartitionState::Other
|
|
|
|
};
|
|
|
|
}
|
|
|
|
PartitionState::Crates => {
|
2019-12-22 23:42:04 +01:00
|
|
|
state = if trimline.starts_with("extern crate")
|
|
|
|
|| trimline.starts_with("#[macro_use] extern crate")
|
|
|
|
|| trimline.chars().all(|c| c.is_whitespace())
|
|
|
|
|| (trimline.starts_with("//") && !trimline.starts_with("///"))
|
2018-12-13 21:31:42 +01:00
|
|
|
{
|
|
|
|
PartitionState::Crates
|
|
|
|
} else {
|
|
|
|
PartitionState::Other
|
|
|
|
};
|
|
|
|
}
|
|
|
|
PartitionState::Other => {}
|
|
|
|
}
|
|
|
|
|
|
|
|
match state {
|
|
|
|
PartitionState::Attrs => {
|
|
|
|
before.push_str(line);
|
2020-12-31 02:49:44 +01:00
|
|
|
before.push('\n');
|
2018-12-13 21:31:42 +01:00
|
|
|
}
|
|
|
|
PartitionState::Crates => {
|
2018-10-20 20:45:44 +02:00
|
|
|
crates.push_str(line);
|
2020-12-31 02:49:44 +01:00
|
|
|
crates.push('\n');
|
2018-10-20 20:45:44 +02:00
|
|
|
}
|
2018-12-13 21:31:42 +01:00
|
|
|
PartitionState::Other => {
|
|
|
|
after.push_str(line);
|
2020-12-31 02:49:44 +01:00
|
|
|
after.push('\n');
|
2018-12-13 21:31:42 +01:00
|
|
|
}
|
2015-03-12 21:01:06 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-12-13 21:31:42 +01:00
|
|
|
debug!("before:\n{}", before);
|
|
|
|
debug!("crates:\n{}", crates);
|
|
|
|
debug!("after:\n{}", after);
|
|
|
|
|
2018-10-20 20:45:44 +02:00
|
|
|
(before, after, crates)
|
2015-03-12 21:01:06 +01:00
|
|
|
}
|
|
|
|
|
2020-11-14 23:59:58 +01:00
|
|
|
crate trait Tester {
|
2018-09-18 00:25:50 +02:00
|
|
|
fn add_test(&mut self, test: String, config: LangString, line: usize);
|
|
|
|
fn get_line(&self) -> usize {
|
|
|
|
0
|
|
|
|
}
|
|
|
|
fn register_header(&mut self, _name: &str, _level: u32) {}
|
|
|
|
}
|
|
|
|
|
2020-11-14 23:59:58 +01:00
|
|
|
crate struct Collector {
|
|
|
|
crate tests: Vec<testing::TestDescAndFn>,
|
2017-09-16 09:59:15 +02:00
|
|
|
|
|
|
|
// The name of the test displayed to the user, separated by `::`.
|
|
|
|
//
|
|
|
|
// In tests from Rust source, this is the path to the item
|
2018-11-27 03:59:49 +01:00
|
|
|
// e.g., `["std", "vec", "Vec", "push"]`.
|
2017-09-16 09:59:15 +02:00
|
|
|
//
|
|
|
|
// In tests from a markdown file, this is the titles of all headers (h1~h6)
|
2018-11-27 03:59:49 +01:00
|
|
|
// of the sections that contain the code block, e.g., if the markdown file is
|
2017-09-16 09:59:15 +02:00
|
|
|
// written as:
|
|
|
|
//
|
|
|
|
// ``````markdown
|
|
|
|
// # Title
|
|
|
|
//
|
|
|
|
// ## Subtitle
|
|
|
|
//
|
|
|
|
// ```rust
|
|
|
|
// assert!(true);
|
|
|
|
// ```
|
|
|
|
// ``````
|
|
|
|
//
|
|
|
|
// the `names` vector of that test will be `["Title", "Subtitle"]`.
|
2014-05-23 01:57:53 +02:00
|
|
|
names: Vec<String>,
|
2017-09-16 09:59:15 +02:00
|
|
|
|
2019-08-29 23:15:31 +02:00
|
|
|
options: Options,
|
2014-03-28 18:27:24 +01:00
|
|
|
use_headers: bool,
|
2019-08-28 00:44:11 +02:00
|
|
|
enable_per_target_ignores: bool,
|
2014-05-23 01:57:53 +02:00
|
|
|
cratename: String,
|
2015-04-07 03:39:39 +02:00
|
|
|
opts: TestOptions,
|
2017-02-06 22:11:03 +01:00
|
|
|
position: Span,
|
2018-08-18 12:14:14 +02:00
|
|
|
source_map: Option<Lrc<SourceMap>>,
|
2017-12-14 08:09:19 +01:00
|
|
|
filename: Option<PathBuf>,
|
2021-01-01 05:25:30 +01:00
|
|
|
visited_tests: FxHashMap<(String, usize), usize>,
|
2013-12-22 20:23:04 +01:00
|
|
|
}
|
|
|
|
|
|
|
|
impl Collector {
|
2020-11-14 23:59:58 +01:00
|
|
|
crate fn new(
|
2019-12-22 23:42:04 +01:00
|
|
|
cratename: String,
|
|
|
|
options: Options,
|
|
|
|
use_headers: bool,
|
|
|
|
opts: TestOptions,
|
|
|
|
source_map: Option<Lrc<SourceMap>>,
|
|
|
|
filename: Option<PathBuf>,
|
|
|
|
enable_per_target_ignores: bool,
|
|
|
|
) -> Collector {
|
2014-03-07 04:31:41 +01:00
|
|
|
Collector {
|
2014-03-06 00:28:08 +01:00
|
|
|
tests: Vec::new(),
|
|
|
|
names: Vec::new(),
|
2019-08-29 23:15:31 +02:00
|
|
|
options,
|
2017-08-07 07:54:09 +02:00
|
|
|
use_headers,
|
2019-08-28 00:44:11 +02:00
|
|
|
enable_per_target_ignores,
|
2017-08-07 07:54:09 +02:00
|
|
|
cratename,
|
|
|
|
opts,
|
2017-02-06 22:11:03 +01:00
|
|
|
position: DUMMY_SP,
|
2018-08-18 12:14:14 +02:00
|
|
|
source_map,
|
2017-08-07 07:54:09 +02:00
|
|
|
filename,
|
2021-01-01 05:25:30 +01:00
|
|
|
visited_tests: FxHashMap::default(),
|
2016-10-02 02:11:45 +02:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2017-12-14 08:09:19 +01:00
|
|
|
fn generate_name(&self, line: usize, filename: &FileName) -> String {
|
2020-05-14 00:31:33 +02:00
|
|
|
let mut item_path = self.names.join("::");
|
|
|
|
if !item_path.is_empty() {
|
|
|
|
item_path.push(' ');
|
|
|
|
}
|
|
|
|
format!("{} - {}(line {})", filename, item_path, line)
|
2017-04-14 01:23:14 +02:00
|
|
|
}
|
|
|
|
|
2020-11-14 23:59:58 +01:00
|
|
|
crate fn set_position(&mut self, position: Span) {
|
2018-09-18 00:25:50 +02:00
|
|
|
self.position = position;
|
|
|
|
}
|
|
|
|
|
|
|
|
fn get_filename(&self) -> FileName {
|
|
|
|
if let Some(ref source_map) = self.source_map {
|
|
|
|
let filename = source_map.span_to_filename(self.position);
|
|
|
|
if let FileName::Real(ref filename) = filename {
|
|
|
|
if let Ok(cur_dir) = env::current_dir() {
|
2020-05-29 17:31:55 +02:00
|
|
|
if let Ok(path) = filename.local_path().strip_prefix(&cur_dir) {
|
2018-09-18 00:25:50 +02:00
|
|
|
return path.to_owned().into();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
filename
|
|
|
|
} else if let Some(ref filename) = self.filename {
|
|
|
|
filename.clone().into()
|
|
|
|
} else {
|
|
|
|
FileName::Custom("input".to_owned())
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
impl Tester for Collector {
|
|
|
|
fn add_test(&mut self, test: String, config: LangString, line: usize) {
|
2018-07-22 00:54:30 +02:00
|
|
|
let filename = self.get_filename();
|
2017-04-14 01:23:14 +02:00
|
|
|
let name = self.generate_name(line, &filename);
|
2014-05-25 12:10:11 +02:00
|
|
|
let cratename = self.cratename.to_string();
|
2015-04-07 03:39:39 +02:00
|
|
|
let opts = self.opts.clone();
|
2020-04-16 00:00:22 +02:00
|
|
|
let edition = config.edition.unwrap_or(self.options.edition);
|
2019-08-29 23:15:31 +02:00
|
|
|
let options = self.options.clone();
|
2019-08-28 00:44:11 +02:00
|
|
|
let runtool = self.options.runtool.clone();
|
|
|
|
let runtool_args = self.options.runtool_args.clone();
|
|
|
|
let target = self.options.target.clone();
|
2019-06-11 20:06:34 +02:00
|
|
|
let target_str = target.to_string();
|
2018-12-08 20:17:50 +01:00
|
|
|
|
2020-03-01 10:34:08 +01:00
|
|
|
// FIXME(#44940): if doctests ever support path remapping, then this filename
|
|
|
|
// needs to be the result of `SourceMap::span_to_unmapped_path`.
|
|
|
|
let path = match &filename {
|
2020-05-29 17:31:55 +02:00
|
|
|
FileName::Real(path) => path.local_path().to_path_buf(),
|
2020-03-01 10:34:08 +01:00
|
|
|
_ => PathBuf::from(r"doctest.rs"),
|
|
|
|
};
|
|
|
|
|
2020-12-06 13:57:37 +01:00
|
|
|
// For example `module/file.rs` would become `module_file_rs`
|
|
|
|
let file = filename
|
|
|
|
.to_string()
|
|
|
|
.chars()
|
|
|
|
.map(|c| if c.is_ascii_alphanumeric() { c } else { '_' })
|
|
|
|
.collect::<String>();
|
|
|
|
let test_id = format!(
|
|
|
|
"{file}_{line}_{number}",
|
|
|
|
file = file,
|
|
|
|
line = line,
|
|
|
|
number = {
|
|
|
|
// Increases the current test number, if this file already
|
|
|
|
// exists or it creates a new entry with a test number of 0.
|
|
|
|
self.visited_tests.entry((file.clone(), line)).and_modify(|v| *v += 1).or_insert(0)
|
|
|
|
},
|
|
|
|
);
|
2020-03-01 10:34:08 +01:00
|
|
|
let outdir = if let Some(mut path) = options.persist_doctests.clone() {
|
2020-12-06 13:57:37 +01:00
|
|
|
path.push(&test_id);
|
2020-03-01 10:34:08 +01:00
|
|
|
|
|
|
|
std::fs::create_dir_all(&path)
|
|
|
|
.expect("Couldn't create directory for doctest executables");
|
|
|
|
|
|
|
|
DirState::Perm(path)
|
|
|
|
} else {
|
|
|
|
DirState::Temp(
|
|
|
|
TempFileBuilder::new()
|
|
|
|
.prefix("rustdoctest")
|
|
|
|
.tempdir()
|
|
|
|
.expect("rustdoc needs a tempdir"),
|
|
|
|
)
|
|
|
|
};
|
|
|
|
|
2019-07-23 20:06:00 +02:00
|
|
|
debug!("creating test {}: {}", name, test);
|
2014-02-14 02:49:11 +01:00
|
|
|
self.tests.push(testing::TestDescAndFn {
|
|
|
|
desc: testing::TestDesc {
|
2020-01-15 15:00:25 +01:00
|
|
|
name: testing::DynTestName(name),
|
2019-04-26 22:52:56 +02:00
|
|
|
ignore: match config.ignore {
|
|
|
|
Ignore::All => true,
|
|
|
|
Ignore::None => false,
|
2019-12-22 23:42:04 +01:00
|
|
|
Ignore::Some(ref ignores) => ignores.iter().any(|s| target_str.contains(s)),
|
2019-04-26 22:52:56 +02:00
|
|
|
},
|
2015-04-07 03:39:39 +02:00
|
|
|
// compiler failures are test failures
|
|
|
|
should_panic: testing::ShouldPanic::No,
|
2018-07-22 00:54:30 +02:00
|
|
|
allow_fail: config.allow_fail,
|
2019-09-28 16:07:18 +02:00
|
|
|
test_type: testing::TestType::DocTest,
|
2013-12-22 20:23:04 +01:00
|
|
|
},
|
2017-12-10 18:58:22 +01:00
|
|
|
testfn: testing::DynTestFn(box move || {
|
2019-05-04 21:37:12 +02:00
|
|
|
let res = run_test(
|
2018-12-08 20:30:23 +01:00
|
|
|
&test,
|
|
|
|
&cratename,
|
|
|
|
line,
|
2019-08-29 23:15:31 +02:00
|
|
|
options,
|
2018-12-08 20:30:23 +01:00
|
|
|
config.should_panic,
|
|
|
|
config.no_run,
|
|
|
|
config.test_harness,
|
2019-04-26 22:52:56 +02:00
|
|
|
runtool,
|
|
|
|
runtool_args,
|
|
|
|
target,
|
2018-12-08 20:30:23 +01:00
|
|
|
config.compile_fail,
|
|
|
|
config.error_codes,
|
|
|
|
&opts,
|
|
|
|
edition,
|
2020-03-01 10:34:08 +01:00
|
|
|
outdir,
|
|
|
|
path,
|
2020-12-06 13:57:37 +01:00
|
|
|
&test_id,
|
2019-05-04 21:37:12 +02:00
|
|
|
);
|
|
|
|
|
|
|
|
if let Err(err) = res {
|
|
|
|
match err {
|
|
|
|
TestFailure::CompileError => {
|
|
|
|
eprint!("Couldn't compile the test.");
|
|
|
|
}
|
|
|
|
TestFailure::UnexpectedCompilePass => {
|
|
|
|
eprint!("Test compiled successfully, but it's marked `compile_fail`.");
|
|
|
|
}
|
|
|
|
TestFailure::UnexpectedRunPass => {
|
|
|
|
eprint!("Test executable succeeded, but it's marked `should_panic`.");
|
|
|
|
}
|
|
|
|
TestFailure::MissingErrorCodes(codes) => {
|
|
|
|
eprint!("Some expected error codes were not found: {:?}", codes);
|
|
|
|
}
|
|
|
|
TestFailure::ExecutionError(err) => {
|
|
|
|
eprint!("Couldn't run the test: {}", err);
|
|
|
|
if err.kind() == io::ErrorKind::PermissionDenied {
|
|
|
|
eprint!(" - maybe your tempdir is mounted with noexec?");
|
|
|
|
}
|
|
|
|
}
|
|
|
|
TestFailure::ExecutionFailure(out) => {
|
|
|
|
let reason = if let Some(code) = out.status.code() {
|
|
|
|
format!("exit code {}", code)
|
|
|
|
} else {
|
|
|
|
String::from("terminated by signal")
|
|
|
|
};
|
|
|
|
|
|
|
|
eprintln!("Test executable failed ({}).", reason);
|
|
|
|
|
|
|
|
// FIXME(#12309): An unfortunate side-effect of capturing the test
|
|
|
|
// executable's output is that the relative ordering between the test's
|
|
|
|
// stdout and stderr is lost. However, this is better than the
|
|
|
|
// alternative: if the test executable inherited the parent's I/O
|
|
|
|
// handles the output wouldn't be captured at all, even on success.
|
|
|
|
//
|
|
|
|
// The ordering could be preserved if the test process' stderr was
|
|
|
|
// redirected to stdout, but that functionality does not exist in the
|
|
|
|
// standard library, so it may not be portable enough.
|
|
|
|
let stdout = str::from_utf8(&out.stdout).unwrap_or_default();
|
|
|
|
let stderr = str::from_utf8(&out.stderr).unwrap_or_default();
|
|
|
|
|
|
|
|
if !stdout.is_empty() || !stderr.is_empty() {
|
|
|
|
eprintln!();
|
|
|
|
|
|
|
|
if !stdout.is_empty() {
|
|
|
|
eprintln!("stdout:\n{}", stdout);
|
|
|
|
}
|
|
|
|
|
|
|
|
if !stderr.is_empty() {
|
|
|
|
eprintln!("stderr:\n{}", stderr);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
panic::resume_unwind(box ());
|
|
|
|
}
|
2017-01-18 00:15:08 +01:00
|
|
|
}),
|
2013-12-22 20:23:04 +01:00
|
|
|
});
|
|
|
|
}
|
2014-03-07 04:31:41 +01:00
|
|
|
|
2018-09-18 00:25:50 +02:00
|
|
|
fn get_line(&self) -> usize {
|
2018-08-18 12:14:14 +02:00
|
|
|
if let Some(ref source_map) = self.source_map {
|
2017-07-31 22:04:34 +02:00
|
|
|
let line = self.position.lo().to_usize();
|
2018-08-18 12:14:14 +02:00
|
|
|
let line = source_map.lookup_char_pos(BytePos(line as u32)).line;
|
2017-01-23 22:46:18 +01:00
|
|
|
if line > 0 { line - 1 } else { line }
|
2017-01-17 23:54:51 +01:00
|
|
|
} else {
|
2017-02-06 22:11:03 +01:00
|
|
|
0
|
2017-01-17 23:54:51 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-09-18 00:25:50 +02:00
|
|
|
fn register_header(&mut self, name: &str, level: u32) {
|
2017-09-16 09:59:15 +02:00
|
|
|
if self.use_headers {
|
2018-11-27 03:59:49 +01:00
|
|
|
// We use these headings as test names, so it's good if
|
2014-03-07 04:31:41 +01:00
|
|
|
// they're valid identifiers.
|
2019-12-22 23:42:04 +01:00
|
|
|
let name = name
|
|
|
|
.chars()
|
|
|
|
.enumerate()
|
|
|
|
.map(|(i, c)| {
|
|
|
|
if (i == 0 && rustc_lexer::is_id_start(c))
|
|
|
|
|| (i != 0 && rustc_lexer::is_id_continue(c))
|
|
|
|
{
|
2014-03-07 04:31:41 +01:00
|
|
|
c
|
|
|
|
} else {
|
|
|
|
'_'
|
|
|
|
}
|
2019-12-22 23:42:04 +01:00
|
|
|
})
|
|
|
|
.collect::<String>();
|
2014-03-07 04:31:41 +01:00
|
|
|
|
2017-09-16 09:59:15 +02:00
|
|
|
// Here we try to efficiently assemble the header titles into the
|
|
|
|
// test name in the form of `h1::h2::h3::h4::h5::h6`.
|
|
|
|
//
|
2018-11-27 03:59:49 +01:00
|
|
|
// Suppose that originally `self.names` contains `[h1, h2, h3]`...
|
2017-09-16 09:59:15 +02:00
|
|
|
let level = level as usize;
|
|
|
|
if level <= self.names.len() {
|
|
|
|
// ... Consider `level == 2`. All headers in the lower levels
|
|
|
|
// are irrelevant in this new level. So we should reset
|
|
|
|
// `self.names` to contain headers until <h2>, and replace that
|
|
|
|
// slot with the new name: `[h1, name]`.
|
|
|
|
self.names.truncate(level);
|
|
|
|
self.names[level - 1] = name;
|
|
|
|
} else {
|
|
|
|
// ... On the other hand, consider `level == 5`. This means we
|
|
|
|
// need to extend `self.names` to contain five headers. We fill
|
|
|
|
// in the missing level (<h4>) with `_`. Thus `self.names` will
|
|
|
|
// become `[h1, h2, h3, "_", name]`.
|
|
|
|
if level - 1 > self.names.len() {
|
|
|
|
self.names.resize(level - 1, "_".to_owned());
|
|
|
|
}
|
|
|
|
self.names.push(name);
|
|
|
|
}
|
2014-03-07 04:31:41 +01:00
|
|
|
}
|
|
|
|
}
|
2013-12-22 20:23:04 +01:00
|
|
|
}
|
|
|
|
|
2020-04-21 23:49:06 +02:00
|
|
|
struct HirCollector<'a, 'hir, 'tcx> {
|
2020-03-11 12:49:08 +01:00
|
|
|
sess: &'a Session,
|
2016-11-20 02:11:20 +01:00
|
|
|
collector: &'a mut Collector,
|
2020-02-09 15:32:00 +01:00
|
|
|
map: Map<'hir>,
|
2018-07-22 19:10:19 +02:00
|
|
|
codes: ErrorCodes,
|
2020-04-21 23:49:06 +02:00
|
|
|
tcx: TyCtxt<'tcx>,
|
2016-11-20 02:11:20 +01:00
|
|
|
}
|
2015-11-05 00:41:33 +01:00
|
|
|
|
2020-04-21 23:49:06 +02:00
|
|
|
impl<'a, 'hir, 'tcx> HirCollector<'a, 'hir, 'tcx> {
|
2019-12-22 23:42:04 +01:00
|
|
|
fn visit_testable<F: FnOnce(&mut Self)>(
|
|
|
|
&mut self,
|
|
|
|
name: String,
|
2020-04-21 23:49:06 +02:00
|
|
|
hir_id: HirId,
|
|
|
|
sp: Span,
|
2019-12-22 23:42:04 +01:00
|
|
|
nested: F,
|
|
|
|
) {
|
2021-02-18 19:35:12 +01:00
|
|
|
let attrs = self.tcx.hir().attrs(hir_id);
|
2020-10-04 02:06:30 +02:00
|
|
|
let mut attrs = Attributes::from_ast(self.sess.diagnostic(), attrs, None);
|
2017-08-05 08:38:52 +02:00
|
|
|
if let Some(ref cfg) = attrs.cfg {
|
2018-02-14 16:11:02 +01:00
|
|
|
if !cfg.matches(&self.sess.parse_sess, Some(&self.sess.features_untracked())) {
|
2017-08-05 08:38:52 +02:00
|
|
|
return;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2016-11-20 02:11:20 +01:00
|
|
|
let has_name = !name.is_empty();
|
|
|
|
if has_name {
|
|
|
|
self.collector.names.push(name);
|
|
|
|
}
|
2015-11-05 00:41:33 +01:00
|
|
|
|
2016-11-20 02:11:20 +01:00
|
|
|
attrs.unindent_doc_comments();
|
2018-11-27 03:59:49 +01:00
|
|
|
// The collapse-docs pass won't combine sugared/raw doc attributes, or included files with
|
|
|
|
// anything else, this will combine them for us.
|
2017-09-22 05:37:00 +02:00
|
|
|
if let Some(doc) = attrs.collapsed_doc_value() {
|
2020-06-28 19:06:33 +02:00
|
|
|
// Use the outermost invocation, so that doctest names come from where the docs were written.
|
|
|
|
let span = attrs
|
|
|
|
.span
|
|
|
|
.map(|span| span.ctxt().outer_expn().expansion_cause().unwrap_or(span))
|
|
|
|
.unwrap_or(DUMMY_SP);
|
|
|
|
self.collector.set_position(span);
|
2019-12-22 23:42:04 +01:00
|
|
|
markdown::find_testable_code(
|
|
|
|
&doc,
|
|
|
|
self.collector,
|
|
|
|
self.codes,
|
|
|
|
self.collector.enable_per_target_ignores,
|
2020-04-21 23:49:06 +02:00
|
|
|
Some(&crate::html::markdown::ExtraInfo::new(
|
2021-01-01 05:25:30 +01:00
|
|
|
self.tcx,
|
2020-04-21 23:49:06 +02:00
|
|
|
hir_id,
|
|
|
|
span_of_attrs(&attrs).unwrap_or(sp),
|
|
|
|
)),
|
2019-12-22 23:42:04 +01:00
|
|
|
);
|
2013-12-22 20:23:04 +01:00
|
|
|
}
|
2015-11-05 00:41:33 +01:00
|
|
|
|
2016-11-20 02:11:20 +01:00
|
|
|
nested(self);
|
|
|
|
|
|
|
|
if has_name {
|
|
|
|
self.collector.names.pop();
|
2013-12-22 20:23:04 +01:00
|
|
|
}
|
2016-11-20 02:11:20 +01:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2020-04-21 23:49:06 +02:00
|
|
|
impl<'a, 'hir, 'tcx> intravisit::Visitor<'hir> for HirCollector<'a, 'hir, 'tcx> {
|
2020-01-07 17:25:33 +01:00
|
|
|
type Map = Map<'hir>;
|
|
|
|
|
2020-02-09 15:32:00 +01:00
|
|
|
fn nested_visit_map(&mut self) -> intravisit::NestedVisitorMap<Self::Map> {
|
|
|
|
intravisit::NestedVisitorMap::All(self.map)
|
2016-11-25 22:10:23 +01:00
|
|
|
}
|
|
|
|
|
2020-06-13 00:44:56 +02:00
|
|
|
fn visit_item(&mut self, item: &'hir hir::Item<'_>) {
|
2020-11-22 23:46:21 +01:00
|
|
|
let name = if let hir::ItemKind::Impl(impl_) = &item.kind {
|
|
|
|
rustc_hir_pretty::id_to_string(&self.map, impl_.self_ty.hir_id)
|
2016-11-20 02:11:20 +01:00
|
|
|
} else {
|
2018-12-01 03:47:08 +01:00
|
|
|
item.ident.to_string()
|
2016-11-20 02:11:20 +01:00
|
|
|
};
|
2015-11-05 00:41:33 +01:00
|
|
|
|
2021-02-18 19:35:12 +01:00
|
|
|
self.visit_testable(name, item.hir_id(), item.span, |this| {
|
2016-11-20 02:11:20 +01:00
|
|
|
intravisit::walk_item(this, item);
|
|
|
|
});
|
|
|
|
}
|
2015-11-05 00:41:33 +01:00
|
|
|
|
2020-06-13 00:44:56 +02:00
|
|
|
fn visit_trait_item(&mut self, item: &'hir hir::TraitItem<'_>) {
|
2021-02-18 19:35:12 +01:00
|
|
|
self.visit_testable(item.ident.to_string(), item.hir_id(), item.span, |this| {
|
|
|
|
intravisit::walk_trait_item(this, item);
|
|
|
|
});
|
2016-11-20 02:11:20 +01:00
|
|
|
}
|
2015-11-05 00:41:33 +01:00
|
|
|
|
2020-06-13 00:44:56 +02:00
|
|
|
fn visit_impl_item(&mut self, item: &'hir hir::ImplItem<'_>) {
|
2021-02-18 19:35:12 +01:00
|
|
|
self.visit_testable(item.ident.to_string(), item.hir_id(), item.span, |this| {
|
|
|
|
intravisit::walk_impl_item(this, item);
|
|
|
|
});
|
2016-11-20 02:11:20 +01:00
|
|
|
}
|
2015-11-05 00:41:33 +01:00
|
|
|
|
2020-06-13 00:44:56 +02:00
|
|
|
fn visit_foreign_item(&mut self, item: &'hir hir::ForeignItem<'_>) {
|
2021-02-18 19:35:12 +01:00
|
|
|
self.visit_testable(item.ident.to_string(), item.hir_id(), item.span, |this| {
|
|
|
|
intravisit::walk_foreign_item(this, item);
|
|
|
|
});
|
2016-11-20 02:11:20 +01:00
|
|
|
}
|
2015-11-05 00:41:33 +01:00
|
|
|
|
2019-12-22 23:42:04 +01:00
|
|
|
fn visit_variant(
|
|
|
|
&mut self,
|
2020-06-13 00:44:56 +02:00
|
|
|
v: &'hir hir::Variant<'_>,
|
|
|
|
g: &'hir hir::Generics<'_>,
|
2019-12-22 23:42:04 +01:00
|
|
|
item_id: hir::HirId,
|
|
|
|
) {
|
2021-02-18 19:35:12 +01:00
|
|
|
self.visit_testable(v.ident.to_string(), v.id, v.span, |this| {
|
2016-11-20 02:11:20 +01:00
|
|
|
intravisit::walk_variant(this, v, g, item_id);
|
|
|
|
});
|
|
|
|
}
|
|
|
|
|
2021-03-15 22:36:07 +01:00
|
|
|
fn visit_field_def(&mut self, f: &'hir hir::FieldDef<'_>) {
|
2021-02-18 19:35:12 +01:00
|
|
|
self.visit_testable(f.ident.to_string(), f.hir_id, f.span, |this| {
|
2021-03-15 22:36:07 +01:00
|
|
|
intravisit::walk_field_def(this, f);
|
2016-11-20 02:11:20 +01:00
|
|
|
});
|
2013-12-22 20:23:04 +01:00
|
|
|
}
|
2016-12-08 11:48:07 +01:00
|
|
|
|
2020-06-13 00:44:56 +02:00
|
|
|
fn visit_macro_def(&mut self, macro_def: &'hir hir::MacroDef<'_>) {
|
2020-04-21 23:49:06 +02:00
|
|
|
self.visit_testable(
|
|
|
|
macro_def.ident.to_string(),
|
2021-01-31 18:20:18 +01:00
|
|
|
macro_def.hir_id(),
|
2020-04-21 23:49:06 +02:00
|
|
|
macro_def.span,
|
|
|
|
|_| (),
|
|
|
|
);
|
2016-12-08 11:48:07 +01:00
|
|
|
}
|
2013-12-22 20:23:04 +01:00
|
|
|
}
|
2018-02-09 17:40:27 +01:00
|
|
|
|
|
|
|
#[cfg(test)]
|
2019-06-05 20:33:39 +02:00
|
|
|
mod tests;
|