Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

3 files changed, 320 insertions, 0 deletions

diff --git a/xpcom/rust/gtest/nsstring/Cargo.toml b/xpcom/rust/gtest/nsstring/Cargo.toml
new file mode 100644
index 0000000000..fd997926a7
--- /dev/null
+++ b/xpcom/rust/gtest/nsstring/Cargo.toml
@@ -0,0 +1,12 @@
+[package]
+name = "nsstring-gtest"
+version = "0.1.0"
+authors = ["nobody@mozilla.com"]
+license = "MPL-2.0"
+description = "Tests for rust bindings to xpcom string types"
+
+[dependencies]
+nsstring = { path = "../../nsstring" }
+
+[lib]
+path = "test.rs"
diff --git a/xpcom/rust/gtest/nsstring/TestnsString.cpp b/xpcom/rust/gtest/nsstring/TestnsString.cpp
new file mode 100644
index 0000000000..4e14c7bca5
--- /dev/null
+++ b/xpcom/rust/gtest/nsstring/TestnsString.cpp
@@ -0,0 +1,177 @@
+#include "gtest/gtest.h"
+#include <stdint.h>
+#include <utility>
+#include "nsString.h"
+
+extern "C" {
+// This function is called by the rust code in test.rs if a non-fatal test
+// failure occurs.
+void GTest_ExpectFailure(const char* aMessage) { EXPECT_STREQ(aMessage, ""); }
+}
+
+#define SIZE_ALIGN_CHECK(Clazz)                                   \
+  extern "C" void Rust_Test_ReprSizeAlign_##Clazz(size_t* size,   \
+                                                  size_t* align); \
+  TEST(RustNsString, ReprSizeAlign_##Clazz)                       \
+  {                                                               \
+    size_t size, align;                                           \
+    Rust_Test_ReprSizeAlign_##Clazz(&size, &align);               \
+    EXPECT_EQ(size, sizeof(Clazz));                               \
+    EXPECT_EQ(align, alignof(Clazz));                             \
+  }
+
+SIZE_ALIGN_CHECK(nsString)
+SIZE_ALIGN_CHECK(nsCString)
+
+#define MEMBER_CHECK(Clazz, Member)                                       \
+  extern "C" void Rust_Test_Member_##Clazz##_##Member(                    \
+      size_t* size, size_t* align, size_t* offset);                       \
+  TEST(RustNsString, ReprMember_##Clazz##_##Member)                       \
+  {                                                                       \
+    class Hack : public Clazz {                                           \
+     public:                                                              \
+      static void RunTest() {                                             \
+        size_t size, align, offset;                                       \
+        Rust_Test_Member_##Clazz##_##Member(&size, &align, &offset);      \
+        EXPECT_EQ(size, sizeof(std::declval<Hack>().Member));             \
+        EXPECT_EQ(align, alignof(decltype(std::declval<Hack>().Member))); \
+        EXPECT_EQ(offset, offsetof(Hack, Member));                        \
+      }                                                                   \
+    };                                                                    \
+    static_assert(sizeof(Clazz) == sizeof(Hack), "Hack matches class");   \
+    Hack::RunTest();                                                      \
+  }
+
+MEMBER_CHECK(nsString, mData)
+MEMBER_CHECK(nsString, mLength)
+MEMBER_CHECK(nsString, mDataFlags)
+MEMBER_CHECK(nsString, mClassFlags)
+MEMBER_CHECK(nsCString, mData)
+MEMBER_CHECK(nsCString, mLength)
+MEMBER_CHECK(nsCString, mDataFlags)
+MEMBER_CHECK(nsCString, mClassFlags)
+
+extern "C" void Rust_Test_NsStringFlags(
+    uint16_t* f_terminated, uint16_t* f_voided, uint16_t* f_refcounted,
+    uint16_t* f_owned, uint16_t* f_inline, uint16_t* f_literal,
+    uint16_t* f_class_inline, uint16_t* f_class_null_terminated);
+TEST(RustNsString, NsStringFlags)
+{
+  uint16_t f_terminated, f_voided, f_refcounted, f_owned, f_inline, f_literal,
+      f_class_inline, f_class_null_terminated;
+  Rust_Test_NsStringFlags(&f_terminated, &f_voided, &f_refcounted, &f_owned,
+                          &f_inline, &f_literal, &f_class_inline,
+                          &f_class_null_terminated);
+  EXPECT_EQ(f_terminated, uint16_t(nsAString::DataFlags::TERMINATED));
+  EXPECT_EQ(f_terminated, uint16_t(nsACString::DataFlags::TERMINATED));
+  EXPECT_EQ(f_voided, uint16_t(nsAString::DataFlags::VOIDED));
+  EXPECT_EQ(f_voided, uint16_t(nsACString::DataFlags::VOIDED));
+  EXPECT_EQ(f_refcounted, uint16_t(nsAString::DataFlags::REFCOUNTED));
+  EXPECT_EQ(f_refcounted, uint16_t(nsACString::DataFlags::REFCOUNTED));
+  EXPECT_EQ(f_owned, uint16_t(nsAString::DataFlags::OWNED));
+  EXPECT_EQ(f_owned, uint16_t(nsACString::DataFlags::OWNED));
+  EXPECT_EQ(f_inline, uint16_t(nsAString::DataFlags::INLINE));
+  EXPECT_EQ(f_inline, uint16_t(nsACString::DataFlags::INLINE));
+  EXPECT_EQ(f_literal, uint16_t(nsAString::DataFlags::LITERAL));
+  EXPECT_EQ(f_literal, uint16_t(nsACString::DataFlags::LITERAL));
+  EXPECT_EQ(f_class_inline, uint16_t(nsAString::ClassFlags::INLINE));
+  EXPECT_EQ(f_class_inline, uint16_t(nsACString::ClassFlags::INLINE));
+  EXPECT_EQ(f_class_null_terminated,
+            uint16_t(nsAString::ClassFlags::NULL_TERMINATED));
+  EXPECT_EQ(f_class_null_terminated,
+            uint16_t(nsACString::ClassFlags::NULL_TERMINATED));
+}
+
+extern "C" void Rust_StringFromCpp(const nsACString* aCStr,
+                                   const nsAString* aStr);
+TEST(RustNsString, StringFromCpp)
+{
+  nsAutoCString foo;
+  foo.AssignASCII("Hello, World!");
+
+  nsAutoString bar;
+  bar.AssignASCII("Hello, World!");
+
+  Rust_StringFromCpp(&foo, &bar);
+}
+
+extern "C" void Rust_AssignFromRust(nsACString* aCStr, nsAString* aStr);
+TEST(RustNsString, AssignFromRust)
+{
+  nsAutoCString cs;
+  nsAutoString s;
+  Rust_AssignFromRust(&cs, &s);
+  EXPECT_TRUE(cs.EqualsASCII("Hello, World!"));
+  EXPECT_TRUE(s.EqualsASCII("Hello, World!"));
+}
+
+extern "C" {
+void Cpp_AssignFromCpp(nsACString* aCStr, nsAString* aStr) {
+  aCStr->AssignASCII("Hello, World!");
+  aStr->AssignASCII("Hello, World!");
+}
+}
+extern "C" void Rust_AssignFromCpp();
+TEST(RustNsString, AssignFromCpp)
+{ Rust_AssignFromCpp(); }
+
+extern "C" void Rust_StringWrite();
+TEST(RustNsString, StringWrite)
+{ Rust_StringWrite(); }
+
+extern "C" void Rust_FromEmptyRustString();
+TEST(RustNsString, FromEmptyRustString)
+{ Rust_FromEmptyRustString(); }
+
+extern "C" void Rust_WriteToBufferFromRust(nsACString* aCStr, nsAString* aStr,
+                                           nsACString* aFallibleCStr,
+                                           nsAString* aFallibleStr);
+TEST(RustNsString, WriteToBufferFromRust)
+{
+  nsAutoCString cStr;
+  nsAutoString str;
+  nsAutoCString fallibleCStr;
+  nsAutoString fallibleStr;
+
+  cStr.AssignLiteral("abc");
+  str.AssignLiteral("abc");
+  fallibleCStr.AssignLiteral("abc");
+  fallibleStr.AssignLiteral("abc");
+
+  Rust_WriteToBufferFromRust(&cStr, &str, &fallibleCStr, &fallibleStr);
+
+  EXPECT_TRUE(cStr.EqualsASCII("ABC"));
+  EXPECT_TRUE(str.EqualsASCII("ABC"));
+  EXPECT_TRUE(fallibleCStr.EqualsASCII("ABC"));
+  EXPECT_TRUE(fallibleStr.EqualsASCII("ABC"));
+}
+
+extern "C" void Rust_InlineCapacityFromRust(const nsACString* aCStr,
+                                            const nsAString* aStr,
+                                            size_t* aCStrCapacity,
+                                            size_t* aStrCapacity);
+TEST(RustNsString, InlineCapacityFromRust)
+{
+  size_t cStrCapacity;
+  size_t strCapacity;
+  nsAutoCStringN<93> cs;
+  nsAutoStringN<93> s;
+  Rust_InlineCapacityFromRust(&cs, &s, &cStrCapacity, &strCapacity);
+  EXPECT_EQ(cStrCapacity, 92U);
+  EXPECT_EQ(strCapacity, 92U);
+}
+
+extern "C" void Rust_VoidStringFromRust(nsACString* aCStr, nsAString* aStr);
+TEST(RustNsString, VoidStringFromRust)
+{
+  nsAutoCString cs;
+  nsAutoString s;
+
+  EXPECT_FALSE(cs.IsVoid());
+  EXPECT_FALSE(s.IsVoid());
+
+  Rust_VoidStringFromRust(&cs, &s);
+
+  EXPECT_TRUE(cs.IsVoid());
+  EXPECT_TRUE(s.IsVoid());
+}
diff --git a/xpcom/rust/gtest/nsstring/test.rs b/xpcom/rust/gtest/nsstring/test.rs
new file mode 100644
index 0000000000..a5d142f2b2
--- /dev/null
+++ b/xpcom/rust/gtest/nsstring/test.rs
@@ -0,0 +1,131 @@
+#![allow(non_snake_case)]
+
+extern crate nsstring;
+
+use nsstring::*;
+use std::ffi::CString;
+use std::fmt::Write;
+use std::os::raw::c_char;
+
+fn nonfatal_fail(msg: String) {
+    extern "C" {
+        fn GTest_ExpectFailure(message: *const c_char);
+    }
+    unsafe {
+        let msg = CString::new(msg).unwrap();
+        GTest_ExpectFailure(msg.as_ptr());
+    }
+}
+
+/// This macro checks if the two arguments are equal, and causes a non-fatal
+/// GTest test failure if they are not.
+macro_rules! expect_eq {
+    ($x:expr, $y:expr) => {
+        match (&$x, &$y) {
+            (x, y) => {
+                if *x != *y {
+                    nonfatal_fail(format!(
+                        "check failed: (`{:?}` == `{:?}`) at {}:{}",
+                        x,
+                        y,
+                        file!(),
+                        line!()
+                    ))
+                }
+            }
+        }
+    };
+}
+
+#[no_mangle]
+pub extern "C" fn Rust_StringFromCpp(cs: *const nsACString, s: *const nsAString) {
+    unsafe {
+        expect_eq!(&*cs, "Hello, World!");
+        expect_eq!(&*s, "Hello, World!");
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn Rust_AssignFromRust(cs: *mut nsACString, s: *mut nsAString) {
+    unsafe {
+        (*cs).assign(&nsCString::from("Hello, World!"));
+        expect_eq!(&*cs, "Hello, World!");
+        (*s).assign(&nsString::from("Hello, World!"));
+        expect_eq!(&*s, "Hello, World!");
+    }
+}
+
+extern "C" {
+    fn Cpp_AssignFromCpp(cs: *mut nsACString, s: *mut nsAString);
+}
+
+#[no_mangle]
+pub extern "C" fn Rust_AssignFromCpp() {
+    let mut cs = nsCString::new();
+    let mut s = nsString::new();
+    unsafe {
+        Cpp_AssignFromCpp(&mut *cs, &mut *s);
+    }
+    expect_eq!(cs, "Hello, World!");
+    expect_eq!(s, "Hello, World!");
+}
+
+#[no_mangle]
+pub extern "C" fn Rust_StringWrite() {
+    let mut cs = nsCString::new();
+    let mut s = nsString::new();
+
+    write!(s, "a").unwrap();
+    write!(cs, "a").unwrap();
+    expect_eq!(s, "a");
+    expect_eq!(cs, "a");
+    write!(s, "bc").unwrap();
+    write!(cs, "bc").unwrap();
+    expect_eq!(s, "abc");
+    expect_eq!(cs, "abc");
+    write!(s, "{}", 123).unwrap();
+    write!(cs, "{}", 123).unwrap();
+    expect_eq!(s, "abc123");
+    expect_eq!(cs, "abc123");
+}
+
+#[no_mangle]
+pub extern "C" fn Rust_FromEmptyRustString() {
+    let mut test = nsString::from("Blah");
+    test.assign_utf8(&nsCString::from(String::new()));
+    assert!(test.is_empty());
+}
+
+#[no_mangle]
+pub extern "C" fn Rust_WriteToBufferFromRust(
+    cs: *mut nsACString,
+    s: *mut nsAString,
+    fallible_cs: *mut nsACString,
+    fallible_s: *mut nsAString,
+) {
+    unsafe {
+        let cs_buf = (*cs).to_mut();
+        let s_buf = (*s).to_mut();
+        let fallible_cs_buf = (*fallible_cs).fallible_to_mut().unwrap();
+        let fallible_s_buf = (*fallible_s).fallible_to_mut().unwrap();
+
+        cs_buf[0] = b'A';
+        cs_buf[1] = b'B';
+        cs_buf[2] = b'C';
+        s_buf[0] = b'A' as u16;
+        s_buf[1] = b'B' as u16;
+        s_buf[2] = b'C' as u16;
+        fallible_cs_buf[0] = b'A';
+        fallible_cs_buf[1] = b'B';
+        fallible_cs_buf[2] = b'C';
+        fallible_s_buf[0] = b'A' as u16;
+        fallible_s_buf[1] = b'B' as u16;
+        fallible_s_buf[2] = b'C' as u16;
+    }
+}
+
+#[no_mangle]
+pub extern "C" fn Rust_VoidStringFromRust(cs: &mut nsACString, s: &mut nsAString) {
+    cs.set_is_void(true);
+    s.set_is_void(true);
+}