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| author | 2015-06-29 20:16:15 +0000 | |
|---|---|---|
| committer | 2015-06-29 20:16:15 +0000 | |
| commit | 64106c4d3d4ddba8c7bc2af75376e6d3d3d75601 (patch) | |
| tree | 8c64d6e8be006486d975a651505fbbde61365cd6 /src/gcc | |
| download | irsc-gh-pages.tar.gz irsc-gh-pages.tar.xz irsc-gh-pages.zip | |
Update documentationgh-pages
Diffstat (limited to 'src/gcc')
| -rw-r--r-- | src/gcc/lib.rs.html | 1093 |
1 files changed, 1093 insertions, 0 deletions
diff --git a/src/gcc/lib.rs.html b/src/gcc/lib.rs.html new file mode 100644 index 0000000..40271e9 --- /dev/null +++ b/src/gcc/lib.rs.html @@ -0,0 +1,1093 @@ +<!DOCTYPE html> +<html lang="en"> +<head> + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width, initial-scale=1.0"> + <meta name="generator" content="rustdoc"> + <meta name="description" content="Source to the Rust file `/home/travis/.cargo/registry/src/github.com-0a35038f75765ae4/gcc-0.3.8/src/lib.rs`."> + <meta name="keywords" content="rust, rustlang, rust-lang"> + + <title>lib.rs.html -- source</title> + + <link rel="stylesheet" type="text/css" href="../../main.css"> + + + +</head> +<body class="rustdoc"> + <!--[if lte IE 8]> + <div class="warning"> + This old browser is unsupported and will most likely display funky + things. + </div> + <![endif]--> + + + + <section class="sidebar"> + + + </section> + + <nav class="sub"> + <form class="search-form js-only"> + <div class="search-container"> + <input class="search-input" name="search" + autocomplete="off" + placeholder="Click or press 'S' to search, '?' for more options..." + type="search"> + </div> + </form> + </nav> + + <section id='main' class="content source"><pre class="line-numbers"><span id="1"> 1</span> +<span id="2"> 2</span> +<span id="3"> 3</span> +<span id="4"> 4</span> +<span id="5"> 5</span> +<span id="6"> 6</span> +<span id="7"> 7</span> +<span id="8"> 8</span> +<span id="9"> 9</span> +<span id="10"> 10</span> +<span id="11"> 11</span> +<span id="12"> 12</span> +<span id="13"> 13</span> +<span id="14"> 14</span> +<span id="15"> 15</span> +<span id="16"> 16</span> +<span id="17"> 17</span> +<span id="18"> 18</span> +<span id="19"> 19</span> +<span id="20"> 20</span> +<span id="21"> 21</span> +<span id="22"> 22</span> +<span id="23"> 23</span> +<span id="24"> 24</span> +<span id="25"> 25</span> +<span id="26"> 26</span> +<span id="27"> 27</span> +<span id="28"> 28</span> +<span id="29"> 29</span> +<span id="30"> 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+<span id="440">440</span> +<span id="441">441</span> +<span id="442">442</span> +<span id="443">443</span> +<span id="444">444</span> +<span id="445">445</span> +<span id="446">446</span> +<span id="447">447</span> +<span id="448">448</span> +<span id="449">449</span> +<span id="450">450</span> +<span id="451">451</span> +<span id="452">452</span> +<span id="453">453</span> +<span id="454">454</span> +<span id="455">455</span> +<span id="456">456</span> +<span id="457">457</span> +<span id="458">458</span> +<span id="459">459</span> +<span id="460">460</span> +<span id="461">461</span> +<span id="462">462</span> +<span id="463">463</span> +<span id="464">464</span> +<span id="465">465</span> +<span id="466">466</span> +<span id="467">467</span> +<span id="468">468</span> +<span id="469">469</span> +<span id="470">470</span> +<span id="471">471</span> +<span id="472">472</span> +<span id="473">473</span> +<span id="474">474</span> +<span id="475">475</span> +<span id="476">476</span> +<span id="477">477</span> +<span id="478">478</span> +<span id="479">479</span> +<span id="480">480</span> +<span id="481">481</span> +<span id="482">482</span> +<span id="483">483</span> +<span id="484">484</span> +<span id="485">485</span> +<span id="486">486</span> +<span id="487">487</span> +<span id="488">488</span> +<span id="489">489</span> +<span id="490">490</span> +<span id="491">491</span> +<span id="492">492</span> +<span id="493">493</span> +<span id="494">494</span> +<span id="495">495</span> +<span id="496">496</span> +<span id="497">497</span> +<span id="498">498</span> +</pre><pre class='rust '> +<span class='doccomment'>//! A library for build scripts to compile custom C code</span> +<span class='doccomment'>//!</span> +<span class='doccomment'>//! This library is intended to be used as a `build-dependencies` entry in</span> +<span class='doccomment'>//! `Cargo.toml`:</span> +<span class='doccomment'>//!</span> +<span class='doccomment'>//! ```toml</span> +<span class='doccomment'>//! [build-dependencies]</span> +<span class='doccomment'>//! gcc = "0.2"</span> +<span class='doccomment'>//! ```</span> +<span class='doccomment'>//!</span> +<span class='doccomment'>//! The purpose of this crate is to provide the utility functions necessary to</span> +<span class='doccomment'>//! compile C code into a static archive which is then linked into a Rust crate.</span> +<span class='doccomment'>//! The top-level `compile_library` function serves as a convenience and more</span> +<span class='doccomment'>//! advanced configuration is available through the `Config` builder.</span> +<span class='doccomment'>//!</span> +<span class='doccomment'>//! This crate will automatically detect situations such as cross compilation or</span> +<span class='doccomment'>//! other environment variables set by Cargo and will build code appropriately.</span> +<span class='doccomment'>//!</span> +<span class='doccomment'>//! # Examples</span> +<span class='doccomment'>//!</span> +<span class='doccomment'>//! Use the default configuration:</span> +<span class='doccomment'>//!</span> +<span class='doccomment'>//! ```no_run</span> +<span class='doccomment'>//! extern crate gcc;</span> +<span class='doccomment'>//!</span> +<span class='doccomment'>//! fn main() {</span> +<span class='doccomment'>//! gcc::compile_library("libfoo.a", &["src/foo.c"]);</span> +<span class='doccomment'>//! }</span> +<span class='doccomment'>//! ```</span> +<span class='doccomment'>//!</span> +<span class='doccomment'>//! Use more advanced configuration:</span> +<span class='doccomment'>//!</span> +<span class='doccomment'>//! ```no_run</span> +<span class='doccomment'>//! extern crate gcc;</span> +<span class='doccomment'>//!</span> +<span class='doccomment'>//! fn main() {</span> +<span class='doccomment'>//! gcc::Config::new()</span> +<span class='doccomment'>//! .file("src/foo.c")</span> +<span class='doccomment'>//! .define("FOO", Some("bar"))</span> +<span class='doccomment'>//! .include("src")</span> +<span class='doccomment'>//! .compile("libfoo.a");</span> +<span class='doccomment'>//! }</span> +<span class='doccomment'>//! ```</span> + +<span class='attribute'>#<span class='op'>!</span>[<span class='ident'>doc</span>(<span class='ident'>html_root_url</span> <span class='op'>=</span> <span class='string'>"http://alexcrichton.com/gcc-rs"</span>)]</span> +<span class='attribute'>#<span class='op'>!</span>[<span class='ident'>cfg_attr</span>(<span class='ident'>test</span>, <span class='ident'>deny</span>(<span class='ident'>warnings</span>))]</span> + +<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>env</span>; +<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>ffi</span>::<span class='ident'>OsString</span>; +<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>fs</span>; +<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>io</span>; +<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>path</span>::{<span class='ident'>PathBuf</span>, <span class='ident'>Path</span>}; +<span class='kw'>use</span> <span class='ident'>std</span>::<span class='ident'>process</span>::{<span class='ident'>Command</span>, <span class='ident'>Stdio</span>}; + +<span class='doccomment'>/// Extra configuration to pass to gcc.</span> +<span class='kw'>pub</span> <span class='kw'>struct</span> <span class='ident'>Config</span> { + <span class='ident'>include_directories</span>: <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>PathBuf</span><span class='op'>></span>, + <span class='ident'>definitions</span>: <span class='ident'>Vec</span><span class='op'><</span>(<span class='ident'>String</span>, <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>String</span><span class='op'>></span>)<span class='op'>></span>, + <span class='ident'>objects</span>: <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>PathBuf</span><span class='op'>></span>, + <span class='ident'>flags</span>: <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>String</span><span class='op'>></span>, + <span class='ident'>files</span>: <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>PathBuf</span><span class='op'>></span>, + <span class='ident'>cpp</span>: <span class='ident'>bool</span>, + <span class='ident'>cpp_link_stdlib</span>: <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>String</span><span class='op'>></span>, + <span class='ident'>cpp_set_stdlib</span>: <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>String</span><span class='op'>></span>, +} + +<span class='doccomment'>/// Returns the default C++ standard library for the current target: `libc++`</span> +<span class='doccomment'>/// for OS X and `libstdc++` for anything else.</span> +<span class='kw'>fn</span> <span class='ident'>target_default_cpp_stdlib</span>() <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span><span class='op'>></span> { + <span class='kw'>let</span> <span class='ident'>target</span> <span class='op'>=</span> <span class='ident'>getenv_unwrap</span>(<span class='string'>"TARGET"</span>); + <span class='kw'>if</span> <span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"msvc"</span>) { + <span class='prelude-val'>None</span> + } <span class='kw'>else</span> <span class='kw'>if</span> <span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"darwin"</span>) { + <span class='prelude-val'>Some</span>(<span class='string'>"c++"</span>) + } <span class='kw'>else</span> { + <span class='prelude-val'>Some</span>(<span class='string'>"stdc++"</span>) + } +} + +<span class='kw'>fn</span> <span class='ident'>getenv</span>(<span class='ident'>v</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) <span class='op'>-></span> <span class='prelude-ty'>Option</span><span class='op'><</span><span class='ident'>String</span><span class='op'>></span> { + <span class='kw'>let</span> <span class='ident'>r</span> <span class='op'>=</span> <span class='ident'>env</span>::<span class='ident'>var</span>(<span class='ident'>v</span>).<span class='ident'>ok</span>(); + <span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>"{} = {:?}"</span>, <span class='ident'>v</span>, <span class='ident'>r</span>); + <span class='ident'>r</span> +} + +<span class='kw'>fn</span> <span class='ident'>getenv_unwrap</span>(<span class='ident'>v</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) <span class='op'>-></span> <span class='ident'>String</span> { + <span class='kw'>match</span> <span class='ident'>getenv</span>(<span class='ident'>v</span>) { + <span class='prelude-val'>Some</span>(<span class='ident'>s</span>) <span class='op'>=></span> <span class='ident'>s</span>, + <span class='prelude-val'>None</span> <span class='op'>=></span> <span class='ident'>fail</span>(<span class='kw-2'>&</span><span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"environment variable `{}` not defined"</span>, <span class='ident'>v</span>)), + } +} + +<span class='doccomment'>/// Compile a library from the given set of input C files.</span> +<span class='doccomment'>///</span> +<span class='doccomment'>/// This will simply compile all files into object files and then assemble them</span> +<span class='doccomment'>/// into the output. This will read the standard environment variables to detect</span> +<span class='doccomment'>/// cross compilations and such.</span> +<span class='doccomment'>///</span> +<span class='doccomment'>/// This function will also print all metadata on standard output for Cargo.</span> +<span class='doccomment'>///</span> +<span class='doccomment'>/// # Example</span> +<span class='doccomment'>///</span> +<span class='doccomment'>/// ```no_run</span> +<span class='doccomment'>/// gcc::compile_library("libfoo.a", &["foo.c", "bar.c"]);</span> +<span class='doccomment'>/// ```</span> +<span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>compile_library</span>(<span class='ident'>output</span>: <span class='kw-2'>&</span><span class='ident'>str</span>, <span class='ident'>files</span>: <span class='kw-2'>&</span>[<span class='kw-2'>&</span><span class='ident'>str</span>]) { + <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>c</span> <span class='op'>=</span> <span class='ident'>Config</span>::<span class='ident'>new</span>(); + <span class='kw'>for</span> <span class='ident'>f</span> <span class='kw'>in</span> <span class='ident'>files</span>.<span class='ident'>iter</span>() { + <span class='ident'>c</span>.<span class='ident'>file</span>(<span class='op'>*</span><span class='ident'>f</span>); + } + <span class='ident'>c</span>.<span class='ident'>compile</span>(<span class='ident'>output</span>) +} + +<span class='kw'>impl</span> <span class='ident'>Config</span> { + <span class='doccomment'>/// Construct a new instance of a blank set of configuration.</span> + <span class='doccomment'>///</span> + <span class='doccomment'>/// This builder is finished with the `compile` function.</span> + <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>new</span>() <span class='op'>-></span> <span class='ident'>Config</span> { + <span class='ident'>Config</span> { + <span class='ident'>include_directories</span>: <span class='ident'>Vec</span>::<span class='ident'>new</span>(), + <span class='ident'>definitions</span>: <span class='ident'>Vec</span>::<span class='ident'>new</span>(), + <span class='ident'>objects</span>: <span class='ident'>Vec</span>::<span class='ident'>new</span>(), + <span class='ident'>flags</span>: <span class='ident'>Vec</span>::<span class='ident'>new</span>(), + <span class='ident'>files</span>: <span class='ident'>Vec</span>::<span class='ident'>new</span>(), + <span class='ident'>cpp</span>: <span class='boolval'>false</span>, + <span class='ident'>cpp_link_stdlib</span>: <span class='ident'>target_default_cpp_stdlib</span>().<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>s</span><span class='op'>|</span> <span class='ident'>s</span>.<span class='ident'>into</span>()), + <span class='ident'>cpp_set_stdlib</span>: <span class='prelude-val'>None</span>, + } + } + + <span class='doccomment'>/// Add a directory to the `-I` or include path for headers</span> + <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>include</span><span class='op'><</span><span class='ident'>P</span>: <span class='ident'>AsRef</span><span class='op'><</span><span class='ident'>Path</span><span class='op'>>></span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>dir</span>: <span class='ident'>P</span>) <span class='op'>-></span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>Config</span> { + <span class='self'>self</span>.<span class='ident'>include_directories</span>.<span class='ident'>push</span>(<span class='ident'>dir</span>.<span class='ident'>as_ref</span>().<span class='ident'>to_path_buf</span>()); + <span class='self'>self</span> + } + + <span class='doccomment'>/// Specify a `-D` variable with an optional value.</span> + <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>define</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>var</span>: <span class='kw-2'>&</span><span class='ident'>str</span>, <span class='ident'>val</span>: <span class='prelude-ty'>Option</span><span class='op'><</span><span class='kw-2'>&</span><span class='ident'>str</span><span class='op'>></span>) <span class='op'>-></span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>Config</span> { + <span class='self'>self</span>.<span class='ident'>definitions</span>.<span class='ident'>push</span>((<span class='ident'>var</span>.<span class='ident'>to_string</span>(), <span class='ident'>val</span>.<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>s</span><span class='op'>|</span> <span class='ident'>s</span>.<span class='ident'>to_string</span>()))); + <span class='self'>self</span> + } + + <span class='doccomment'>/// Add an arbitrary object file to link in</span> + <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>object</span><span class='op'><</span><span class='ident'>P</span>: <span class='ident'>AsRef</span><span class='op'><</span><span class='ident'>Path</span><span class='op'>>></span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>obj</span>: <span class='ident'>P</span>) <span class='op'>-></span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>Config</span> { + <span class='self'>self</span>.<span class='ident'>objects</span>.<span class='ident'>push</span>(<span class='ident'>obj</span>.<span class='ident'>as_ref</span>().<span class='ident'>to_path_buf</span>()); + <span class='self'>self</span> + } + + <span class='doccomment'>/// Add an arbitrary flag to the invocation of the compiler</span> + <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>flag</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>flag</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) <span class='op'>-></span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>Config</span> { + <span class='self'>self</span>.<span class='ident'>flags</span>.<span class='ident'>push</span>(<span class='ident'>flag</span>.<span class='ident'>to_string</span>()); + <span class='self'>self</span> + } + + <span class='doccomment'>/// Add a file which will be compiled</span> + <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>file</span><span class='op'><</span><span class='ident'>P</span>: <span class='ident'>AsRef</span><span class='op'><</span><span class='ident'>Path</span><span class='op'>>></span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>p</span>: <span class='ident'>P</span>) <span class='op'>-></span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>Config</span> { + <span class='self'>self</span>.<span class='ident'>files</span>.<span class='ident'>push</span>(<span class='ident'>p</span>.<span class='ident'>as_ref</span>().<span class='ident'>to_path_buf</span>()); + <span class='self'>self</span> + } + + <span class='doccomment'>/// Set C++ support.</span> + <span class='doccomment'>///</span> + <span class='doccomment'>/// The other `cpp_*` options will only become active if this is set to</span> + <span class='doccomment'>/// `true`.</span> + <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>cpp</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>cpp</span>: <span class='ident'>bool</span>) <span class='op'>-></span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>Config</span> { + <span class='self'>self</span>.<span class='ident'>cpp</span> <span class='op'>=</span> <span class='ident'>cpp</span>; + <span class='self'>self</span> + } + + <span class='doccomment'>/// Set the standard library to link against when compiling with C++</span> + <span class='doccomment'>/// support.</span> + <span class='doccomment'>///</span> + <span class='doccomment'>/// The default value of this property depends on the current target: On</span> + <span class='doccomment'>/// OS X `Some("c++")` is used, when compiling for a Visual Studio based</span> + <span class='doccomment'>/// target `None` is used and for other targets `Some("stdc++")` is used.</span> + <span class='doccomment'>///</span> + <span class='doccomment'>/// A value of `None` indicates that no automatic linking should happen,</span> + <span class='doccomment'>/// otherwise cargo will link against the specified library.</span> + <span class='doccomment'>///</span> + <span class='doccomment'>/// The given library name must not contain the `lib` prefix.</span> + <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>cpp_link_stdlib</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>cpp_link_stdlib</span>: <span class='prelude-ty'>Option</span><span class='op'><</span><span class='kw-2'>&</span><span class='ident'>str</span><span class='op'>></span>) <span class='op'>-></span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>Config</span> { + <span class='self'>self</span>.<span class='ident'>cpp_link_stdlib</span> <span class='op'>=</span> <span class='ident'>cpp_link_stdlib</span>.<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>s</span><span class='op'>|</span> <span class='ident'>s</span>.<span class='ident'>into</span>()); + <span class='self'>self</span> + } + + <span class='doccomment'>/// Force the C++ compiler to use the specified standard library.</span> + <span class='doccomment'>///</span> + <span class='doccomment'>/// Setting this option will automatically set `cpp_link_stdlib` to the same</span> + <span class='doccomment'>/// value.</span> + <span class='doccomment'>///</span> + <span class='doccomment'>/// The default value of this option is always `None`.</span> + <span class='doccomment'>///</span> + <span class='doccomment'>/// This option has no effect when compiling for a Visual Studio based</span> + <span class='doccomment'>/// target.</span> + <span class='doccomment'>///</span> + <span class='doccomment'>/// This option sets the `-stdlib` flag, which is only supported by some</span> + <span class='doccomment'>/// compilers (clang, icc) but not by others (gcc). The library will not</span> + <span class='doccomment'>/// detect which compiler is used, as such it is the responsibility of the</span> + <span class='doccomment'>/// caller to ensure that this option is only used in conjuction with a</span> + <span class='doccomment'>/// compiler which supports the `-stdlib` flag.</span> + <span class='doccomment'>///</span> + <span class='doccomment'>/// A value of `None` indicates that no specific C++ standard library should</span> + <span class='doccomment'>/// be used, otherwise `-stdlib` is added to the compile invocation.</span> + <span class='doccomment'>///</span> + <span class='doccomment'>/// The given library name must not contain the `lib` prefix.</span> + <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>cpp_set_stdlib</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='self'>self</span>, <span class='ident'>cpp_set_stdlib</span>: <span class='prelude-ty'>Option</span><span class='op'><</span><span class='kw-2'>&</span><span class='ident'>str</span><span class='op'>></span>) <span class='op'>-></span> <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>Config</span> { + <span class='self'>self</span>.<span class='ident'>cpp_set_stdlib</span> <span class='op'>=</span> <span class='ident'>cpp_set_stdlib</span>.<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>s</span><span class='op'>|</span> <span class='ident'>s</span>.<span class='ident'>into</span>()); + + <span class='self'>self</span>.<span class='ident'>cpp_link_stdlib</span>(<span class='ident'>cpp_set_stdlib</span>); + + <span class='self'>self</span> + } + + <span class='doccomment'>/// Run the compiler, generating the file `output`</span> + <span class='doccomment'>///</span> + <span class='doccomment'>/// The name `output` must begin with `lib` and end with `.a`</span> + <span class='kw'>pub</span> <span class='kw'>fn</span> <span class='ident'>compile</span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>output</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) { + <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>output</span>.<span class='ident'>starts_with</span>(<span class='string'>"lib"</span>)); + <span class='macro'>assert</span><span class='macro'>!</span>(<span class='ident'>output</span>.<span class='ident'>ends_with</span>(<span class='string'>".a"</span>)); + <span class='kw'>let</span> <span class='ident'>lib_name</span> <span class='op'>=</span> <span class='kw-2'>&</span><span class='ident'>output</span>[<span class='number'>3</span>..<span class='ident'>output</span>.<span class='ident'>len</span>() <span class='op'>-</span> <span class='number'>2</span>]; + + <span class='kw'>let</span> <span class='ident'>target</span> <span class='op'>=</span> <span class='ident'>getenv_unwrap</span>(<span class='string'>"TARGET"</span>); + <span class='kw'>let</span> <span class='ident'>src</span> <span class='op'>=</span> <span class='ident'>PathBuf</span>::<span class='ident'>from</span>(<span class='ident'>getenv_unwrap</span>(<span class='string'>"CARGO_MANIFEST_DIR"</span>)); + <span class='kw'>let</span> <span class='ident'>dst</span> <span class='op'>=</span> <span class='ident'>PathBuf</span>::<span class='ident'>from</span>(<span class='ident'>getenv_unwrap</span>(<span class='string'>"OUT_DIR"</span>)); + <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>objects</span> <span class='op'>=</span> <span class='ident'>Vec</span>::<span class='ident'>new</span>(); + <span class='kw'>for</span> <span class='ident'>file</span> <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>files</span>.<span class='ident'>iter</span>() { + <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>cmd</span> <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>compile_cmd</span>(<span class='kw-2'>&</span><span class='ident'>target</span>); + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='ident'>src</span>.<span class='ident'>join</span>(<span class='ident'>file</span>)); + + <span class='kw'>let</span> <span class='ident'>obj</span> <span class='op'>=</span> <span class='ident'>dst</span>.<span class='ident'>join</span>(<span class='ident'>file</span>).<span class='ident'>with_extension</span>(<span class='string'>"o"</span>); + <span class='ident'>fs</span>::<span class='ident'>create_dir_all</span>(<span class='kw-2'>&</span><span class='ident'>obj</span>.<span class='ident'>parent</span>().<span class='ident'>unwrap</span>()).<span class='ident'>unwrap</span>(); + <span class='kw'>if</span> <span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"msvc"</span>) { + <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>s</span> <span class='op'>=</span> <span class='ident'>OsString</span>::<span class='ident'>from</span>(<span class='string'>"/Fo:"</span>); + <span class='ident'>s</span>.<span class='ident'>push</span>(<span class='kw-2'>&</span><span class='ident'>obj</span>); + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='ident'>s</span>); + } <span class='kw'>else</span> { + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='string'>"-o"</span>).<span class='ident'>arg</span>(<span class='kw-2'>&</span><span class='ident'>obj</span>); + } + <span class='ident'>run</span>(<span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>cmd</span>, <span class='kw-2'>&</span><span class='self'>self</span>.<span class='ident'>compiler</span>(<span class='kw-2'>&</span><span class='ident'>target</span>)); + <span class='ident'>objects</span>.<span class='ident'>push</span>(<span class='ident'>obj</span>); + } + + <span class='kw'>if</span> <span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"msvc"</span>) { + <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>out</span> <span class='op'>=</span> <span class='ident'>OsString</span>::<span class='ident'>from</span>(<span class='string'>"/OUT:"</span>); + <span class='ident'>out</span>.<span class='ident'>push</span>(<span class='ident'>dst</span>.<span class='ident'>join</span>(<span class='ident'>output</span>)); + <span class='ident'>run</span>(<span class='ident'>Command</span>::<span class='ident'>new</span>(<span class='string'>"lib"</span>).<span class='ident'>arg</span>(<span class='ident'>out</span>).<span class='ident'>args</span>(<span class='kw-2'>&</span><span class='ident'>objects</span>).<span class='ident'>args</span>(<span class='kw-2'>&</span><span class='self'>self</span>.<span class='ident'>objects</span>), + <span class='string'>"lib"</span>); + + <span class='comment'>// The Rust compiler will look for libfoo.a and foo.lib, but the</span> + <span class='comment'>// MSVC linker will also be passed foo.lib, so be sure that both</span> + <span class='comment'>// exist for now.</span> + <span class='kw'>let</span> <span class='ident'>lib_dst</span> <span class='op'>=</span> <span class='ident'>dst</span>.<span class='ident'>join</span>(<span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"{}.lib"</span>, <span class='ident'>lib_name</span>)); + <span class='kw'>let</span> _ <span class='op'>=</span> <span class='ident'>fs</span>::<span class='ident'>remove_file</span>(<span class='kw-2'>&</span><span class='ident'>lib_dst</span>); + <span class='ident'>fs</span>::<span class='ident'>hard_link</span>(<span class='ident'>dst</span>.<span class='ident'>join</span>(<span class='ident'>output</span>), <span class='ident'>lib_dst</span>).<span class='ident'>unwrap</span>(); + } <span class='kw'>else</span> { + <span class='ident'>run</span>(<span class='ident'>Command</span>::<span class='ident'>new</span>(<span class='kw-2'>&</span><span class='ident'>ar</span>(<span class='kw-2'>&</span><span class='ident'>target</span>)).<span class='ident'>arg</span>(<span class='string'>"crus"</span>) + .<span class='ident'>arg</span>(<span class='kw-2'>&</span><span class='ident'>dst</span>.<span class='ident'>join</span>(<span class='ident'>output</span>)) + .<span class='ident'>args</span>(<span class='kw-2'>&</span><span class='ident'>objects</span>) + .<span class='ident'>args</span>(<span class='kw-2'>&</span><span class='self'>self</span>.<span class='ident'>objects</span>), + <span class='kw-2'>&</span><span class='ident'>ar</span>(<span class='kw-2'>&</span><span class='ident'>target</span>)); + } + <span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>"cargo:rustc-link-search=native={}"</span>, <span class='ident'>dst</span>.<span class='ident'>display</span>()); + <span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>"cargo:rustc-link-lib=static={}"</span>, + <span class='kw-2'>&</span><span class='ident'>output</span>[<span class='number'>3</span>..<span class='ident'>output</span>.<span class='ident'>len</span>() <span class='op'>-</span> <span class='number'>2</span>]); + + <span class='comment'>// Add specific C++ libraries, if enabled.</span> + <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>cpp</span> { + <span class='kw'>if</span> <span class='kw'>let</span> <span class='prelude-val'>Some</span>(<span class='kw-2'>ref</span> <span class='ident'>stdlib</span>) <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>cpp_link_stdlib</span> { + <span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>"cargo:rustc-link-lib={}"</span>, <span class='ident'>stdlib</span>); + } + } + } + + <span class='kw'>fn</span> <span class='ident'>compiler</span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>target</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) <span class='op'>-></span> <span class='ident'>String</span> { + <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>cpp</span> { + <span class='ident'>gxx</span>(<span class='ident'>target</span>) + } <span class='kw'>else</span> { + <span class='ident'>gcc</span>(<span class='ident'>target</span>) + } + } + + <span class='kw'>fn</span> <span class='ident'>compile_flags</span>(<span class='kw-2'>&</span><span class='self'>self</span>) <span class='op'>-></span> <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>String</span><span class='op'>></span> { + <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>cpp</span> { + <span class='ident'>cxxflags</span>() + } <span class='kw'>else</span> { + <span class='ident'>cflags</span>() + } + } + + <span class='kw'>fn</span> <span class='ident'>compile_cmd</span>(<span class='kw-2'>&</span><span class='self'>self</span>, <span class='ident'>target</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) <span class='op'>-></span> <span class='ident'>Command</span> { + <span class='kw'>let</span> <span class='ident'>opt_level</span> <span class='op'>=</span> <span class='ident'>getenv_unwrap</span>(<span class='string'>"OPT_LEVEL"</span>); + <span class='kw'>let</span> <span class='ident'>profile</span> <span class='op'>=</span> <span class='ident'>getenv_unwrap</span>(<span class='string'>"PROFILE"</span>); + <span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>"{} {}"</span>, <span class='ident'>profile</span>, <span class='ident'>opt_level</span>); + + <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>cmd</span> <span class='op'>=</span> <span class='ident'>Command</span>::<span class='ident'>new</span>(<span class='self'>self</span>.<span class='ident'>compiler</span>(<span class='kw-2'>&</span><span class='ident'>target</span>)); + + <span class='kw'>if</span> <span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"msvc"</span>) { + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='string'>"/c"</span>); + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='string'>"/MD"</span>); <span class='comment'>// link against msvcrt.dll for now</span> + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"/O{}"</span>, <span class='ident'>opt_level</span>)); + } <span class='kw'>else</span> { + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"-O{}"</span>, <span class='ident'>opt_level</span>)); + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='string'>"-c"</span>); + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='string'>"-ffunction-sections"</span>).<span class='ident'>arg</span>(<span class='string'>"-fdata-sections"</span>); + } + <span class='ident'>cmd</span>.<span class='ident'>args</span>(<span class='kw-2'>&</span><span class='self'>self</span>.<span class='ident'>compile_flags</span>()); + + <span class='kw'>if</span> <span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"-ios"</span>) { + <span class='ident'>cmd</span>.<span class='ident'>args</span>(<span class='kw-2'>&</span><span class='ident'>ios_flags</span>(<span class='kw-2'>&</span><span class='ident'>target</span>)); + } <span class='kw'>else</span> <span class='kw'>if</span> <span class='op'>!</span><span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"msvc"</span>) { + <span class='kw'>if</span> <span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"windows"</span>) { + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='string'>"-mwin32"</span>); + } + + <span class='kw'>if</span> <span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"i686"</span>) { + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='string'>"-m32"</span>); + } <span class='kw'>else</span> <span class='kw'>if</span> <span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"x86_64"</span>) { + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='string'>"-m64"</span>); + } + + <span class='kw'>if</span> <span class='op'>!</span><span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"i686"</span>) { + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='string'>"-fPIC"</span>); + } + } + + <span class='kw'>if</span> <span class='self'>self</span>.<span class='ident'>cpp</span> <span class='op'>&&</span> <span class='op'>!</span><span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"msvc"</span>) { + <span class='kw'>if</span> <span class='kw'>let</span> <span class='prelude-val'>Some</span>(<span class='kw-2'>ref</span> <span class='ident'>stdlib</span>) <span class='op'>=</span> <span class='self'>self</span>.<span class='ident'>cpp_set_stdlib</span> { + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='kw-2'>&</span><span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"-stdlib=lib{}"</span>, <span class='ident'>stdlib</span>)); + } + } + + <span class='kw'>for</span> <span class='ident'>directory</span> <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>include_directories</span>.<span class='ident'>iter</span>() { + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='kw'>if</span> <span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"msvc"</span>) {<span class='string'>"/I"</span>} <span class='kw'>else</span> {<span class='string'>"-I"</span>}); + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='ident'>directory</span>); + } + + <span class='kw'>for</span> <span class='ident'>flag</span> <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>flags</span>.<span class='ident'>iter</span>() { + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='ident'>flag</span>); + } + + <span class='kw'>for</span> <span class='kw-2'>&</span>(<span class='kw-2'>ref</span> <span class='ident'>key</span>, <span class='kw-2'>ref</span> <span class='ident'>value</span>) <span class='kw'>in</span> <span class='self'>self</span>.<span class='ident'>definitions</span>.<span class='ident'>iter</span>() { + <span class='kw'>let</span> <span class='ident'>lead</span> <span class='op'>=</span> <span class='kw'>if</span> <span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"msvc"</span>) {<span class='string'>"/"</span>} <span class='kw'>else</span> {<span class='string'>"-"</span>}; + <span class='kw'>if</span> <span class='kw'>let</span> <span class='kw-2'>&</span><span class='prelude-val'>Some</span>(<span class='kw-2'>ref</span> <span class='ident'>value</span>) <span class='op'>=</span> <span class='ident'>value</span> { + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='kw-2'>&</span><span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"{}D{}={}"</span>, <span class='ident'>lead</span>, <span class='ident'>key</span>, <span class='ident'>value</span>)); + } <span class='kw'>else</span> { + <span class='ident'>cmd</span>.<span class='ident'>arg</span>(<span class='kw-2'>&</span><span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"{}D{}"</span>, <span class='ident'>lead</span>, <span class='ident'>key</span>)); + } + } + <span class='kw'>return</span> <span class='ident'>cmd</span>; + } +} + +<span class='kw'>fn</span> <span class='ident'>run</span>(<span class='ident'>cmd</span>: <span class='kw-2'>&</span><span class='kw-2'>mut</span> <span class='ident'>Command</span>, <span class='ident'>program</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) { + <span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>"running: {:?}"</span>, <span class='ident'>cmd</span>); + <span class='kw'>let</span> <span class='ident'>status</span> <span class='op'>=</span> <span class='kw'>match</span> <span class='ident'>cmd</span>.<span class='ident'>status</span>() { + <span class='prelude-val'>Ok</span>(<span class='ident'>status</span>) <span class='op'>=></span> <span class='ident'>status</span>, + <span class='prelude-val'>Err</span>(<span class='kw-2'>ref</span> <span class='ident'>e</span>) <span class='kw'>if</span> <span class='ident'>e</span>.<span class='ident'>kind</span>() <span class='op'>==</span> <span class='ident'>io</span>::<span class='ident'>ErrorKind</span>::<span class='ident'>NotFound</span> <span class='op'>=></span> { + <span class='kw'>let</span> <span class='ident'>extra</span> <span class='op'>=</span> <span class='kw'>if</span> <span class='macro'>cfg</span><span class='macro'>!</span>(<span class='ident'>windows</span>) { + <span class='string'>" (see https://github.com/alexcrichton/gcc-rs#windows-notes \ + for help)"</span> + } <span class='kw'>else</span> { + <span class='string'>""</span> + }; + <span class='ident'>fail</span>(<span class='kw-2'>&</span><span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"failed to execute command: {}\nIs `{}` \ + not installed?{}"</span>, <span class='ident'>e</span>, <span class='ident'>program</span>, <span class='ident'>extra</span>)); + } + <span class='prelude-val'>Err</span>(<span class='ident'>e</span>) <span class='op'>=></span> <span class='ident'>fail</span>(<span class='kw-2'>&</span><span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"failed to execute command: {}"</span>, <span class='ident'>e</span>)), + }; + <span class='kw'>if</span> <span class='op'>!</span><span class='ident'>status</span>.<span class='ident'>success</span>() { + <span class='ident'>fail</span>(<span class='kw-2'>&</span><span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"command did not execute successfully, got: {}"</span>, <span class='ident'>status</span>)); + } +} + +<span class='kw'>fn</span> <span class='ident'>get_var</span>(<span class='ident'>var_base</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) <span class='op'>-></span> <span class='prelude-ty'>Result</span><span class='op'><</span><span class='ident'>String</span>, <span class='ident'>String</span><span class='op'>></span> { + <span class='kw'>let</span> <span class='ident'>target</span> <span class='op'>=</span> <span class='ident'>getenv_unwrap</span>(<span class='string'>"TARGET"</span>); + <span class='kw'>let</span> <span class='ident'>host</span> <span class='op'>=</span> <span class='ident'>getenv_unwrap</span>(<span class='string'>"HOST"</span>); + <span class='kw'>let</span> <span class='ident'>kind</span> <span class='op'>=</span> <span class='kw'>if</span> <span class='ident'>host</span> <span class='op'>==</span> <span class='ident'>target</span> {<span class='string'>"HOST"</span>} <span class='kw'>else</span> {<span class='string'>"TARGET"</span>}; + <span class='kw'>let</span> <span class='ident'>target_u</span> <span class='op'>=</span> <span class='ident'>target</span>.<span class='ident'>replace</span>(<span class='string'>"-"</span>, <span class='string'>"_"</span>); + <span class='kw'>let</span> <span class='ident'>res</span> <span class='op'>=</span> <span class='ident'>getenv</span>(<span class='kw-2'>&</span><span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"{}_{}"</span>, <span class='ident'>var_base</span>, <span class='ident'>target</span>)) + .<span class='ident'>or_else</span>(<span class='op'>||</span> <span class='ident'>getenv</span>(<span class='kw-2'>&</span><span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"{}_{}"</span>, <span class='ident'>var_base</span>, <span class='ident'>target_u</span>))) + .<span class='ident'>or_else</span>(<span class='op'>||</span> <span class='ident'>getenv</span>(<span class='kw-2'>&</span><span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"{}_{}"</span>, <span class='ident'>kind</span>, <span class='ident'>var_base</span>))) + .<span class='ident'>or_else</span>(<span class='op'>||</span> <span class='ident'>getenv</span>(<span class='ident'>var_base</span>)); + + <span class='kw'>match</span> <span class='ident'>res</span> { + <span class='prelude-val'>Some</span>(<span class='ident'>res</span>) <span class='op'>=></span> <span class='prelude-val'>Ok</span>(<span class='ident'>res</span>), + <span class='prelude-val'>None</span> <span class='op'>=></span> <span class='prelude-val'>Err</span>(<span class='string'>"Could not get environment variable"</span>.<span class='ident'>to_string</span>()), + } +} + +<span class='kw'>fn</span> <span class='ident'>gcc</span>(<span class='ident'>target</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) <span class='op'>-></span> <span class='ident'>String</span> { + <span class='kw'>let</span> <span class='ident'>is_android</span> <span class='op'>=</span> <span class='ident'>target</span>.<span class='ident'>find</span>(<span class='string'>"android"</span>).<span class='ident'>is_some</span>(); + + <span class='ident'>get_var</span>(<span class='string'>"CC"</span>).<span class='ident'>unwrap_or</span>(<span class='kw'>if</span> <span class='macro'>cfg</span><span class='macro'>!</span>(<span class='ident'>windows</span>) { + <span class='kw'>if</span> <span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"msvc"</span>) { + <span class='string'>"cl"</span>.<span class='ident'>to_string</span>() + } <span class='kw'>else</span> { + <span class='string'>"gcc"</span>.<span class='ident'>to_string</span>() + } + } <span class='kw'>else</span> <span class='kw'>if</span> <span class='ident'>is_android</span> { + <span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"{}-gcc"</span>, <span class='ident'>target</span>) + } <span class='kw'>else</span> { + <span class='string'>"cc"</span>.<span class='ident'>to_string</span>() + }) +} + +<span class='kw'>fn</span> <span class='ident'>gxx</span>(<span class='ident'>target</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) <span class='op'>-></span> <span class='ident'>String</span> { + <span class='kw'>let</span> <span class='ident'>is_android</span> <span class='op'>=</span> <span class='ident'>target</span>.<span class='ident'>find</span>(<span class='string'>"android"</span>).<span class='ident'>is_some</span>(); + + <span class='ident'>get_var</span>(<span class='string'>"CXX"</span>).<span class='ident'>unwrap_or</span>(<span class='kw'>if</span> <span class='macro'>cfg</span><span class='macro'>!</span>(<span class='ident'>windows</span>) { + <span class='kw'>if</span> <span class='ident'>target</span>.<span class='ident'>contains</span>(<span class='string'>"msvc"</span>) { + <span class='string'>"cl"</span>.<span class='ident'>to_string</span>() + } <span class='kw'>else</span> { + <span class='string'>"g++"</span>.<span class='ident'>to_string</span>() + } + } <span class='kw'>else</span> <span class='kw'>if</span> <span class='ident'>is_android</span> { + <span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"{}-g++"</span>, <span class='ident'>target</span>) + } <span class='kw'>else</span> { + <span class='string'>"c++"</span>.<span class='ident'>to_string</span>() + }) +} + +<span class='kw'>fn</span> <span class='ident'>ar</span>(<span class='ident'>target</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) <span class='op'>-></span> <span class='ident'>String</span> { + <span class='kw'>let</span> <span class='ident'>is_android</span> <span class='op'>=</span> <span class='ident'>target</span>.<span class='ident'>find</span>(<span class='string'>"android"</span>).<span class='ident'>is_some</span>(); + + <span class='ident'>get_var</span>(<span class='string'>"AR"</span>).<span class='ident'>unwrap_or</span>(<span class='kw'>if</span> <span class='ident'>is_android</span> { + <span class='macro'>format</span><span class='macro'>!</span>(<span class='string'>"{}-ar"</span>, <span class='ident'>target</span>) + } <span class='kw'>else</span> { + <span class='string'>"ar"</span>.<span class='ident'>to_string</span>() + }) +} + +<span class='kw'>fn</span> <span class='ident'>envflags</span>(<span class='ident'>name</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) <span class='op'>-></span> <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>String</span><span class='op'>></span> { + <span class='ident'>get_var</span>(<span class='ident'>name</span>).<span class='ident'>unwrap_or</span>(<span class='ident'>String</span>::<span class='ident'>new</span>()) + .<span class='ident'>split</span>(<span class='op'>|</span><span class='ident'>c</span>: <span class='ident'>char</span><span class='op'>|</span> <span class='ident'>c</span>.<span class='ident'>is_whitespace</span>()).<span class='ident'>filter</span>(<span class='op'>|</span><span class='ident'>s</span><span class='op'>|</span> <span class='op'>!</span><span class='ident'>s</span>.<span class='ident'>is_empty</span>()) + .<span class='ident'>map</span>(<span class='op'>|</span><span class='ident'>s</span><span class='op'>|</span> <span class='ident'>s</span>.<span class='ident'>to_string</span>()) + .<span class='ident'>collect</span>() +} + +<span class='kw'>fn</span> <span class='ident'>cflags</span>() <span class='op'>-></span> <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>String</span><span class='op'>></span> { + <span class='ident'>envflags</span>(<span class='string'>"CFLAGS"</span>) +} + +<span class='kw'>fn</span> <span class='ident'>cxxflags</span>() <span class='op'>-></span> <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>String</span><span class='op'>></span> { + <span class='ident'>envflags</span>(<span class='string'>"CXXFLAGS"</span>) +} + +<span class='kw'>fn</span> <span class='ident'>ios_flags</span>(<span class='ident'>target</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) <span class='op'>-></span> <span class='ident'>Vec</span><span class='op'><</span><span class='ident'>String</span><span class='op'>></span> { + <span class='kw'>enum</span> <span class='ident'>ArchSpec</span> { + <span class='ident'>Device</span>(<span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>), + <span class='ident'>Simulator</span>(<span class='kw-2'>&</span><span class='lifetime'>'static</span> <span class='ident'>str</span>), + } + + <span class='kw'>let</span> <span class='kw-2'>mut</span> <span class='ident'>res</span> <span class='op'>=</span> <span class='ident'>Vec</span>::<span class='ident'>new</span>(); + + <span class='kw'>let</span> <span class='ident'>arch</span> <span class='op'>=</span> <span class='ident'>target</span>.<span class='ident'>split</span>(<span class='string'>'-'</span>).<span class='ident'>nth</span>(<span class='number'>0</span>).<span class='ident'>expect</span>(<span class='string'>"expected target in format `arch-vendor-os`"</span>); + <span class='kw'>let</span> <span class='ident'>arch</span> <span class='op'>=</span> <span class='kw'>match</span> <span class='ident'>arch</span> { + <span class='string'>"arm"</span> <span class='op'>|</span> <span class='string'>"armv7"</span> <span class='op'>|</span> <span class='string'>"thumbv7"</span> <span class='op'>=></span> <span class='ident'>ArchSpec</span>::<span class='ident'>Device</span>(<span class='string'>"armv7"</span>), + <span class='string'>"armv7s"</span> <span class='op'>|</span> <span class='string'>"thumbv7s"</span> <span class='op'>=></span> <span class='ident'>ArchSpec</span>::<span class='ident'>Device</span>(<span class='string'>"armv7s"</span>), + <span class='string'>"arm64"</span> <span class='op'>|</span> <span class='string'>"aarch64"</span> <span class='op'>=></span> <span class='ident'>ArchSpec</span>::<span class='ident'>Device</span>(<span class='string'>"arm64"</span>), + <span class='string'>"i386"</span> <span class='op'>|</span> <span class='string'>"i686"</span> <span class='op'>=></span> <span class='ident'>ArchSpec</span>::<span class='ident'>Simulator</span>(<span class='string'>"-m32"</span>), + <span class='string'>"x86_64"</span> <span class='op'>=></span> <span class='ident'>ArchSpec</span>::<span class='ident'>Simulator</span>(<span class='string'>"-m64"</span>), + _ <span class='op'>=></span> <span class='macro'>unreachable</span><span class='macro'>!</span>(<span class='string'>"Unknown arch for iOS target"</span>) + }; + + <span class='kw'>let</span> <span class='ident'>sdk</span> <span class='op'>=</span> <span class='kw'>match</span> <span class='ident'>arch</span> { + <span class='ident'>ArchSpec</span>::<span class='ident'>Device</span>(<span class='ident'>arch</span>) <span class='op'>=></span> { + <span class='ident'>res</span>.<span class='ident'>push</span>(<span class='string'>"-arch"</span>.<span class='ident'>to_string</span>()); + <span class='ident'>res</span>.<span class='ident'>push</span>(<span class='ident'>arch</span>.<span class='ident'>to_string</span>()); + <span class='string'>"iphoneos"</span> + }, + <span class='ident'>ArchSpec</span>::<span class='ident'>Simulator</span>(<span class='ident'>arch</span>) <span class='op'>=></span> { + <span class='ident'>res</span>.<span class='ident'>push</span>(<span class='ident'>arch</span>.<span class='ident'>to_string</span>()); + <span class='string'>"iphonesimulator"</span> + } + }; + + <span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>"Detecting iOS SDK path for {}"</span>, <span class='ident'>sdk</span>); + <span class='kw'>let</span> <span class='ident'>sdk_path</span> <span class='op'>=</span> <span class='ident'>Command</span>::<span class='ident'>new</span>(<span class='string'>"xcrun"</span>) + .<span class='ident'>arg</span>(<span class='string'>"--show-sdk-path"</span>) + .<span class='ident'>arg</span>(<span class='string'>"--sdk"</span>) + .<span class='ident'>arg</span>(<span class='ident'>sdk</span>) + .<span class='ident'>stderr</span>(<span class='ident'>Stdio</span>::<span class='ident'>inherit</span>()) + .<span class='ident'>output</span>() + .<span class='ident'>unwrap</span>() + .<span class='ident'>stdout</span>; + + <span class='kw'>let</span> <span class='ident'>sdk_path</span> <span class='op'>=</span> <span class='ident'>String</span>::<span class='ident'>from_utf8</span>(<span class='ident'>sdk_path</span>).<span class='ident'>unwrap</span>(); + + <span class='ident'>res</span>.<span class='ident'>push</span>(<span class='string'>"-isysroot"</span>.<span class='ident'>to_string</span>()); + <span class='ident'>res</span>.<span class='ident'>push</span>(<span class='ident'>sdk_path</span>.<span class='ident'>trim</span>().<span class='ident'>to_string</span>()); + + <span class='ident'>res</span> +} + +<span class='kw'>fn</span> <span class='ident'>fail</span>(<span class='ident'>s</span>: <span class='kw-2'>&</span><span class='ident'>str</span>) <span class='op'>-></span> <span class='op'>!</span> { + <span class='macro'>println</span><span class='macro'>!</span>(<span class='string'>"\n\n{}\n\n"</span>, <span class='ident'>s</span>); + <span class='macro'>panic</span><span class='macro'>!</span>() +} +</pre> +</section> + <section id='search' class="content hidden"></section> + + <section class="footer"></section> + + <div id="help" class="hidden"> + <div class="shortcuts"> + <h1>Keyboard shortcuts</h1> + <dl> + <dt>?</dt> + <dd>Show this help dialog</dd> + <dt>S</dt> + <dd>Focus the search field</dd> + <dt>⇤</dt> + <dd>Move up in search results</dd> + <dt>⇥</dt> + <dd>Move down in search results</dd> + <dt>⏎</dt> + <dd>Go to active search result</dd> + </dl> + </div> + <div class="infos"> + <h1>Search tricks</h1> + <p> + Prefix searches with a type followed by a colon (e.g. + <code>fn:</code>) to restrict the search to a given type. + </p> + <p> + Accepted types are: <code>fn</code>, <code>mod</code>, + <code>struct</code>, <code>enum</code>, + <code>trait</code>, <code>typedef</code> (or + <code>tdef</code>). + </p> + <p> + Search functions by type signature (e.g. + <code>vec -> usize</code>) + </p> + </div> + </div> + + + + <script> + window.rootPath = "../../"; + window.currentCrate = "gcc"; + window.playgroundUrl = ""; + </script> + <script src="../../jquery.js"></script> + <script src="../../main.js"></script> + + <script async src="../../search-index.js"></script> +</body> +</html>
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