Add doc field to Target.

Added in rust-lang/cargo#8869

src/lib.rs

@@ -428,6 +428,12 @@ pub struct Target {
     #[serde(default = "default_true")]
     #[cfg_attr(feature = "builder", builder(default = "true"))]
     pub test: bool,
+    /// Whether or not this target is documented by `cargo doc`.
+    ///
+    /// This is always `true` if running with a version of Cargo older than 1.50.
+    #[serde(default = "default_true")]
+    #[cfg_attr(feature = "builder", builder(default = "true"))]
+    pub doc: bool,
 }
 
 fn default_true() -> bool {

tests/all/Cargo.toml

@@ -47,6 +47,7 @@ crate-type = ["rlib", "cdylib", "dylib", "staticlib"]
 [[bin]]
 name = "otherbin"
 edition = '2015'
+doc = false
 
 [[bin]]
 name = "reqfeat"

tests/test_samples.rs

@@ -95,6 +95,7 @@ fn old_minimal() {
     assert_eq!(target.edition, "2015");
     assert_eq!(target.doctest, true);
     assert_eq!(target.test, true);
+    assert_eq!(target.doc, true);
     assert_eq!(pkg.features.len(), 0);
     assert_eq!(pkg.manifest_path, "/foo/Cargo.toml");
     assert_eq!(pkg.categories.len(), 0);
@@ -155,10 +156,10 @@ struct TestObject {
 
 #[test]
 fn all_the_fields() {
-    // All the fields currently generated as of 1.49. This tries to exercise as
+    // All the fields currently generated as of 1.51. This tries to exercise as
     // much as possible.
     let ver = cargo_version();
-    let minimum = semver::Version::parse("1.49.0").unwrap();
+    let minimum = semver::Version::parse("1.51.0").unwrap();
     if ver < minimum {
         // edition added in 1.30
         // rename added in 1.31
@@ -169,6 +170,7 @@ fn all_the_fields() {
         // test added in 1.47
         // homepage added in 1.49
         // documentation added in 1.49
+        // doc added in 1.50
         // path added in 1.51
         eprintln!("Skipping all_the_fields test, cargo {} is too old.", ver);
         return;
@@ -222,12 +224,10 @@ fn all_the_fields() {
     assert_eq!(path_dep.source, None);
     assert_eq!(path_dep.kind, DependencyKind::Normal);
     assert_eq!(path_dep.req, semver::VersionReq::parse("*").unwrap());
-    if ver >= semver::Version::parse("1.51.0").unwrap() {
-        assert_eq!(
-            path_dep.path.as_ref().map(|p| p.ends_with("path-dep")),
-            Some(true),
-        );
-    }
+    assert_eq!(
+        path_dep.path.as_ref().map(|p| p.ends_with("path-dep")),
+        Some(true),
+    );
 
     all.dependencies
         .iter()
@@ -292,15 +292,18 @@ fn all_the_fields() {
     assert_eq!(lib.edition, "2018");
     assert_eq!(lib.doctest, true);
     assert_eq!(lib.test, true);
+    assert_eq!(lib.doc, true);
 
     let main = get_file_name!("main.rs");
     assert_eq!(main.crate_types, vec!["bin"]);
     assert_eq!(main.kind, vec!["bin"]);
     assert_eq!(main.doctest, false);
     assert_eq!(main.test, true);
+    assert_eq!(main.doc, true);
 
     let otherbin = get_file_name!("otherbin.rs");
     assert_eq!(otherbin.edition, "2015");
+    assert_eq!(otherbin.doc, false);
 
     let reqfeat = get_file_name!("reqfeat.rs");
     assert_eq!(reqfeat.required_features, vec!["feat2"]);