Auto merge of #21916 - japaric:no-as-slice, r=alexcrichton

r? @alexcrichton 
cc @eddyb

Author: bors

Diff for: src/compiletest/compiletest.rs

@@ -97,22 +97,22 @@ pub fn parse_config(args: Vec<String> ) -> Config {
     assert!(!args.is_empty());
     let argv0 = args[0].clone();
     let args_ = args.tail();
-    if args[1].as_slice() == "-h" || args[1].as_slice() == "--help" {
+    if args[1] == "-h" || args[1] == "--help" {
         let message = format!("Usage: {} [OPTIONS] [TESTNAME...]", argv0);
-        println!("{}", getopts::usage(message.as_slice(), groups.as_slice()));
+        println!("{}", getopts::usage(&message, &groups));
         println!("");
         panic!()
     }
 
     let matches =
-        &match getopts::getopts(args_.as_slice(), groups.as_slice()) {
+        &match getopts::getopts(args_, &groups) {
           Ok(m) => m,
           Err(f) => panic!("{:?}", f)
         };
 
     if matches.opt_present("h") || matches.opt_present("help") {
         let message = format!("Usage: {} [OPTIONS]  [TESTNAME...]", argv0);
-        println!("{}", getopts::usage(message.as_slice(), groups.as_slice()));
+        println!("{}", getopts::usage(&message, &groups));
         println!("");
         panic!()
     }
@@ -156,9 +156,9 @@ pub fn parse_config(args: Vec<String> ) -> Config {
         adb_test_dir: opt_str2(matches.opt_str("adb-test-dir")),
         adb_device_status:
             "arm-linux-androideabi" ==
-                opt_str2(matches.opt_str("target")).as_slice() &&
+                opt_str2(matches.opt_str("target")) &&
             "(none)" !=
-                opt_str2(matches.opt_str("adb-test-dir")).as_slice() &&
+                opt_str2(matches.opt_str("adb-test-dir")) &&
             !opt_str2(matches.opt_str("adb-test-dir")).is_empty(),
         lldb_python_dir: matches.opt_str("lldb-python-dir"),
         verbose: matches.opt_present("verbose"),
@@ -201,7 +201,7 @@ pub fn log_config(config: &Config) {
 pub fn opt_str<'a>(maybestr: &'a Option<String>) -> &'a str {
     match *maybestr {
         None => "(none)",
-        Some(ref s) => s.as_slice(),
+        Some(ref s) => s,
     }
 }
 
@@ -213,7 +213,7 @@ pub fn opt_str2(maybestr: Option<String>) -> String {
 }
 
 pub fn run_tests(config: &Config) {
-    if config.target.as_slice() == "arm-linux-androideabi" {
+    if config.target == "arm-linux-androideabi" {
         match config.mode {
             DebugInfoGdb => {
                 println!("arm-linux-androideabi debug-info \
@@ -306,13 +306,13 @@ pub fn is_test(config: &Config, testfile: &Path) -> bool {
     let mut valid = false;
 
     for ext in &valid_extensions {
-        if name.ends_with(ext.as_slice()) {
+        if name.ends_with(ext) {
             valid = true;
         }
     }
 
     for pre in &invalid_prefixes {
-        if name.starts_with(pre.as_slice()) {
+        if name.starts_with(pre) {
             valid = false;
         }
     }

Diff for: src/compiletest/errors.rs

@@ -44,7 +44,7 @@ pub fn load_errors(testfile: &Path) -> Vec<ExpectedError> {
     rdr.lines().enumerate().filter_map(|(line_no, ln)| {
         parse_expected(last_nonfollow_error,
                        line_no + 1,
-                       ln.unwrap().as_slice())
+                       &ln.unwrap())
             .map(|(which, error)| {
                 match which {
                     FollowPrevious(_) => {}

Diff for: src/compiletest/header.rs

@@ -145,7 +145,7 @@ pub fn load_props(testfile: &Path) -> TestProps {
 
 pub fn is_test_ignored(config: &Config, testfile: &Path) -> bool {
     fn ignore_target(config: &Config) -> String {
-        format!("ignore-{}", util::get_os(config.target.as_slice()))
+        format!("ignore-{}", util::get_os(&config.target))
     }
     fn ignore_stage(config: &Config) -> String {
         format!("ignore-{}",
@@ -169,8 +169,8 @@ pub fn is_test_ignored(config: &Config, testfile: &Path) -> bool {
                                           .expect("Malformed GDB version directive");
                     // Ignore if actual version is smaller the minimum required
                     // version
-                    gdb_version_to_int(actual_version.as_slice()) <
-                        gdb_version_to_int(min_version.as_slice())
+                    gdb_version_to_int(actual_version) <
+                        gdb_version_to_int(min_version)
                 } else {
                     false
                 }
@@ -197,8 +197,8 @@ pub fn is_test_ignored(config: &Config, testfile: &Path) -> bool {
                                           .expect("Malformed lldb version directive");
                     // Ignore if actual version is smaller the minimum required
                     // version
-                    lldb_version_to_int(actual_version.as_slice()) <
-                        lldb_version_to_int(min_version.as_slice())
+                    lldb_version_to_int(actual_version) <
+                        lldb_version_to_int(min_version)
                 } else {
                     false
                 }
@@ -209,8 +209,8 @@ pub fn is_test_ignored(config: &Config, testfile: &Path) -> bool {
 
     let val = iter_header(testfile, |ln| {
         !parse_name_directive(ln, "ignore-test") &&
-        !parse_name_directive(ln, ignore_target(config).as_slice()) &&
-        !parse_name_directive(ln, ignore_stage(config).as_slice()) &&
+        !parse_name_directive(ln, &ignore_target(config)) &&
+        !parse_name_directive(ln, &ignore_stage(config)) &&
         !(config.mode == common::Pretty && parse_name_directive(ln, "ignore-pretty")) &&
         !(config.target != config.host && parse_name_directive(ln, "ignore-cross-compile")) &&
         !ignore_gdb(config, ln) &&
@@ -294,7 +294,7 @@ fn parse_pretty_compare_only(line: &str) -> bool {
 fn parse_exec_env(line: &str) -> Option<(String, String)> {
     parse_name_value_directive(line, "exec-env").map(|nv| {
         // nv is either FOO or FOO=BAR
-        let mut strs: Vec<String> = nv.as_slice()
+        let mut strs: Vec<String> = nv
                                       .splitn(1, '=')
                                       .map(|s| s.to_string())
                                       .collect();
@@ -330,7 +330,7 @@ fn parse_name_directive(line: &str, directive: &str) -> bool {
 pub fn parse_name_value_directive(line: &str, directive: &str)
                                   -> Option<String> {
     let keycolon = format!("{}:", directive);
-    match line.find_str(keycolon.as_slice()) {
+    match line.find_str(&keycolon) {
         Some(colon) => {
             let value = line[(colon + keycolon.len()) .. line.len()].to_string();
             debug!("{}: {}", directive, value);
@@ -344,16 +344,16 @@ pub fn gdb_version_to_int(version_string: &str) -> int {
     let error_string = format!(
         "Encountered GDB version string with unexpected format: {}",
         version_string);
-    let error_string = error_string.as_slice();
+    let error_string = error_string;
 
     let components: Vec<&str> = version_string.trim().split('.').collect();
 
     if components.len() != 2 {
         panic!("{}", error_string);
     }
 
-    let major: int = components[0].parse().ok().expect(error_string);
-    let minor: int = components[1].parse().ok().expect(error_string);
+    let major: int = components[0].parse().ok().expect(&error_string);
+    let minor: int = components[1].parse().ok().expect(&error_string);
 
     return major * 1000 + minor;
 }
@@ -362,7 +362,7 @@ pub fn lldb_version_to_int(version_string: &str) -> int {
     let error_string = format!(
         "Encountered LLDB version string with unexpected format: {}",
         version_string);
-    let error_string = error_string.as_slice();
-    let major: int = version_string.parse().ok().expect(error_string);
+    let error_string = error_string;
+    let major: int = version_string.parse().ok().expect(&error_string);
     return major;
 }

Diff for: src/compiletest/procsrv.rs

@@ -23,7 +23,7 @@ fn add_target_env(cmd: &mut Command, lib_path: &str, aux_path: Option<&str>) {
 
     // Add the new dylib search path var
     let var = DynamicLibrary::envvar();
-    let newpath = DynamicLibrary::create_path(path.as_slice());
+    let newpath = DynamicLibrary::create_path(&path);
     let newpath = String::from_utf8(newpath).unwrap();
     cmd.env(var.to_string(), newpath);
 }