Add m-esr52 at 52.6.0

4 files changed, 267 insertions, 0 deletions

diff --git a/xpcom/rust/nsstring/gtest/Cargo.toml b/xpcom/rust/nsstring/gtest/Cargo.toml
new file mode 100644
index 0000000000..44897ec98f
--- /dev/null
+++ b/xpcom/rust/nsstring/gtest/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 = "../" }
+
+[lib]
+path = "test.rs"
diff --git a/xpcom/rust/nsstring/gtest/Test.cpp b/xpcom/rust/nsstring/gtest/Test.cpp
new file mode 100644
index 0000000000..93d2ee1d79
--- /dev/null
+++ b/xpcom/rust/nsstring/gtest/Test.cpp
@@ -0,0 +1,131 @@
+#include "gtest/gtest.h"
+#include <stdint.h>
+#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)
+SIZE_ALIGN_CHECK(nsFixedString)
+SIZE_ALIGN_CHECK(nsFixedCString)
+
+#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(mozilla::DeclVal<Hack>().Member));       \
+        EXPECT_EQ(size, alignof(decltype(mozilla::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, mFlags)
+MEMBER_CHECK(nsCString, mData)
+MEMBER_CHECK(nsCString, mLength)
+MEMBER_CHECK(nsCString, mFlags)
+MEMBER_CHECK(nsFixedString, mFixedCapacity)
+MEMBER_CHECK(nsFixedString, mFixedBuf)
+MEMBER_CHECK(nsFixedCString, mFixedCapacity)
+MEMBER_CHECK(nsFixedCString, mFixedBuf)
+
+extern "C" void Rust_Test_NsStringFlags(uint32_t* f_none,
+                                        uint32_t* f_terminated,
+                                        uint32_t* f_voided,
+                                        uint32_t* f_shared,
+                                        uint32_t* f_owned,
+                                        uint32_t* f_fixed,
+                                        uint32_t* f_literal,
+                                        uint32_t* f_class_fixed);
+TEST(RustNsString, NsStringFlags) {
+  uint32_t f_none, f_terminated, f_voided, f_shared, f_owned, f_fixed, f_literal, f_class_fixed;
+  Rust_Test_NsStringFlags(&f_none, &f_terminated,
+                          &f_voided, &f_shared,
+                          &f_owned, &f_fixed,
+                          &f_literal, &f_class_fixed);
+  EXPECT_EQ(f_none, nsAString::F_NONE);
+  EXPECT_EQ(f_none, nsACString::F_NONE);
+  EXPECT_EQ(f_terminated, nsAString::F_TERMINATED);
+  EXPECT_EQ(f_terminated, nsACString::F_TERMINATED);
+  EXPECT_EQ(f_voided, nsAString::F_VOIDED);
+  EXPECT_EQ(f_voided, nsACString::F_VOIDED);
+  EXPECT_EQ(f_shared, nsAString::F_SHARED);
+  EXPECT_EQ(f_shared, nsACString::F_SHARED);
+  EXPECT_EQ(f_owned, nsAString::F_OWNED);
+  EXPECT_EQ(f_owned, nsACString::F_OWNED);
+  EXPECT_EQ(f_fixed, nsAString::F_FIXED);
+  EXPECT_EQ(f_fixed, nsACString::F_FIXED);
+  EXPECT_EQ(f_literal, nsAString::F_LITERAL);
+  EXPECT_EQ(f_literal, nsACString::F_LITERAL);
+  EXPECT_EQ(f_class_fixed, nsAString::F_CLASS_FIXED);
+  EXPECT_EQ(f_class_fixed, nsACString::F_CLASS_FIXED);
+}
+
+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_FixedAssignFromCpp();
+TEST(RustNsString, FixedAssignFromCpp) {
+  Rust_FixedAssignFromCpp();
+}
+extern "C" void Rust_AutoAssignFromCpp();
+TEST(RustNsString, AutoAssignFromCpp) {
+  Rust_AutoAssignFromCpp();
+}
+
+extern "C" void Rust_StringWrite();
+TEST(RustNsString, StringWrite) {
+  Rust_StringWrite();
+}
diff --git a/xpcom/rust/nsstring/gtest/moz.build b/xpcom/rust/nsstring/gtest/moz.build
new file mode 100644
index 0000000000..5bed9e57e5
--- /dev/null
+++ b/xpcom/rust/nsstring/gtest/moz.build
@@ -0,0 +1,12 @@
+# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
+# vim: set filetype=python:
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+if CONFIG['MOZ_RUST']:
+    UNIFIED_SOURCES += [
+        'Test.cpp'
+    ]
+
+FINAL_LIBRARY = 'xul-gtest'
diff --git a/xpcom/rust/nsstring/gtest/test.rs b/xpcom/rust/nsstring/gtest/test.rs
new file mode 100644
index 0000000000..2968a1be79
--- /dev/null
+++ b/xpcom/rust/nsstring/gtest/test.rs
@@ -0,0 +1,112 @@
+#![allow(non_snake_case)]
+
+#[macro_use]
+extern crate nsstring;
+
+use std::fmt::Write;
+use std::ffi::CString;
+use std::os::raw::c_char;
+use nsstring::*;
+
+fn nonfatal_fail(msg: String) {
+    extern "C" {
+        fn GTest_ExpectFailure(message: *const c_char);
+    }
+    unsafe {
+        GTest_ExpectFailure(CString::new(msg).unwrap().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 fn Rust_StringFromCpp(cs: *const nsACString, s: *const nsAString) {
+    unsafe {
+        expect_eq!(&*cs, "Hello, World!");
+        expect_eq!(&*s, "Hello, World!");
+    }
+}
+
+#[no_mangle]
+pub extern 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 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 fn Rust_FixedAssignFromCpp() {
+    let mut cs_buf: [u8; 64] = [0; 64];
+    let cs_buf_ptr = &cs_buf as *const _ as usize;
+    let mut s_buf: [u16; 64] = [0; 64];
+    let s_buf_ptr = &s_buf as *const _ as usize;
+    let mut cs = nsFixedCString::new(&mut cs_buf);
+    let mut s = nsFixedString::new(&mut s_buf);
+    unsafe {
+        Cpp_AssignFromCpp(&mut *cs, &mut *s);
+    }
+    expect_eq!(cs, "Hello, World!");
+    expect_eq!(s, "Hello, World!");
+    expect_eq!(cs.as_ptr() as usize, cs_buf_ptr);
+    expect_eq!(s.as_ptr() as usize, s_buf_ptr);
+}
+
+#[no_mangle]
+pub extern fn Rust_AutoAssignFromCpp() {
+    ns_auto_cstring!(cs);
+    ns_auto_string!(s);
+    unsafe {
+        Cpp_AssignFromCpp(&mut *cs, &mut *s);
+    }
+    expect_eq!(cs, "Hello, World!");
+    expect_eq!(s, "Hello, World!");
+}
+
+#[no_mangle]
+pub extern fn Rust_StringWrite() {
+    ns_auto_cstring!(cs);
+    ns_auto_string!(s);
+
+    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");
+}
+