Add buck targets

9 files changed, 825 insertions, 0 deletions

diff --git a/.buckconfig b/.buckconfig
new file mode 100644
index 00000000..33c15ec0
--- /dev/null
+++ b/.buckconfig
@@ -0,0 +1,12 @@
+[project]
+  # We use some symlinks in the source tree, but they get eliminated by `cargo
+  # publish` and `cargo vendor` so this allow_symlinks setting should not be
+  # required downstream.
+  allow_symlinks = allow
+
+[cxx]
+  cxxflags = -std=c++11
+
+[rust]
+  default_edition = 2018
+  rustc_flags = -Crelocation-model=dynamic-no-pic --cap-lints=allow
diff --git a/.gitignore b/.gitignore
index a874449b..b403b1d4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,5 @@
+/.buckd
+/buck-out
 /Cargo.lock
 /expand.cc
 /expand.rs
diff --git a/.travis.yml b/.travis.yml
index f054344a..74f438d0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,3 +9,18 @@ os:
 script:
   - cargo run --manifest-path demo-rs/Cargo.toml
   - cargo test
+
+matrix:
+  include:
+    - name: Buck
+      before_install:
+        - sudo apt-get install -y openjdk-8-jdk
+        - export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
+        - wget -O buck.deb https://github.com/facebook/buck/releases/download/v2019.10.17.01/buck.2019.10.17.01_all.deb
+        - sudo dpkg -i buck.deb
+      before_script:
+        - cp third-party/Cargo.lock .
+        - cargo vendor --versioned-dirs third-party/vendor
+      script:
+        - buck build :cxx#check --verbose=0
+        - buck run demo-rs --verbose=0
diff --git a/BUCK b/BUCK
new file mode 100644
index 00000000..2d127536
--- /dev/null
+++ b/BUCK
@@ -0,0 +1,60 @@
+rust_library(
+    name = "cxx",
+    srcs = glob(["src/**"]),
+    visibility = ["PUBLIC"],
+    deps = [
+        ":core",
+        ":macro",
+        "//third-party:anyhow",
+        "//third-party:cc",
+        "//third-party:codespan",
+        "//third-party:codespan-reporting",
+        "//third-party:link-cplusplus",
+        "//third-party:proc-macro2",
+        "//third-party:quote",
+        "//third-party:syn",
+        "//third-party:thiserror",
+    ],
+)
+
+rust_binary(
+    name = "codegen",
+    srcs = glob(["cmd/src/**"]),
+    visibility = ["PUBLIC"],
+    env = {
+        "CARGO_PKG_AUTHORS": "David Tolnay <dtolnay@gmail.com>",
+    },
+    deps = [
+        "//third-party:anyhow",
+        "//third-party:codespan",
+        "//third-party:codespan-reporting",
+        "//third-party:proc-macro2",
+        "//third-party:quote",
+        "//third-party:structopt",
+        "//third-party:syn",
+        "//third-party:thiserror",
+    ],
+)
+
+cxx_library(
+    name = "core",
+    srcs = ["src/cxxbridge.cc"],
+    visibility = ["PUBLIC"],
+    header_namespace = "cxxbridge",
+    exported_headers = {
+        "cxxbridge.h": "include/cxxbridge.h",
+    },
+    exported_linker_flags = ["-lstdc++"],
+)
+
+rust_library(
+    name = "macro",
+    srcs = glob(["macro/src/**"]),
+    proc_macro = True,
+    crate = "cxxbridge_macro",
+    deps = [
+        "//third-party:proc-macro2",
+        "//third-party:quote",
+        "//third-party:syn",
+    ],
+)
diff --git a/demo-cxx/BUCK b/demo-cxx/BUCK
new file mode 100644
index 00000000..595a18ba
--- /dev/null
+++ b/demo-cxx/BUCK
@@ -0,0 +1,16 @@
+cxx_library(
+    name = "demo-cxx",
+    srcs = ["demo.cc"],
+    visibility = ["PUBLIC"],
+    deps = [
+        ":include",
+        "//demo-rs:include",
+    ],
+)
+
+cxx_library(
+    name = "include",
+    exported_headers = ["demo.h"],
+    visibility = ["PUBLIC"],
+    deps = ["//:core"],
+)
diff --git a/demo-rs/BUCK b/demo-rs/BUCK
new file mode 100644
index 00000000..a0f6fb0b
--- /dev/null
+++ b/demo-rs/BUCK
@@ -0,0 +1,42 @@
+rust_binary(
+    name = "demo-rs",
+    srcs = glob(["src/**"]),
+    deps = [
+        ":gen",
+        "//:cxx",
+        "//demo-cxx:demo-cxx",
+    ],
+)
+
+cxx_library(
+    name = "gen",
+    srcs = [":gen-source"],
+    deps = [
+        ":include",
+        "//demo-cxx:include",
+    ],
+)
+
+genrule(
+    name = "gen-header",
+    srcs = ["src/main.rs"],
+    cmd = "$(exe //:codegen) --header ${SRCS} > ${OUT}",
+    type = "cxxbridge",
+    out = "gen-demo.h",
+)
+
+genrule(
+    name = "gen-source",
+    srcs = ["src/main.rs"],
+    cmd = "$(exe //:codegen) ${SRCS} > ${OUT}",
+    type = "cxxbridge",
+    out = "gen-demo.cc",
+)
+
+cxx_library(
+    name = "include",
+    exported_headers = {
+        "src/main.rs": ":gen-header",
+    },
+    visibility = ["PUBLIC"],
+)
diff --git a/third-party/.gitignore b/third-party/.gitignore
new file mode 100644
index 00000000..61ead866
--- /dev/null
+++ b/third-party/.gitignore
@@ -0,0 +1 @@
+/vendor
diff --git a/third-party/BUCK b/third-party/BUCK
new file mode 100644
index 00000000..1c1bf3d5
--- /dev/null
+++ b/third-party/BUCK
@@ -0,0 +1,243 @@
+# To be generated by Facebook's `reindeer` tool once that is open source.
+
+rust_library(
+    name = "anyhow",
+    srcs = glob(["vendor/anyhow-1.0.26/src/**"]),
+    visibility = ["PUBLIC"],
+    features = ["std"],
+)
+
+rust_library(
+    name = "bitflags",
+    srcs = glob(["vendor/bitflags-1.2.1/src/**"]),
+)
+
+rust_library(
+    name = "cc",
+    srcs = glob(["vendor/cc-1.0.50/src/**"]),
+    visibility = ["PUBLIC"],
+)
+
+rust_library(
+    name = "clap",
+    srcs = glob(["vendor/clap-2.33.0/src/**"]),
+    edition = "2015",
+    deps = [
+        ":bitflags",
+        ":textwrap",
+        ":unicode-width",
+    ],
+)
+
+rust_library(
+    name = "codespan",
+    srcs = glob(["vendor/codespan-0.7.0/src/**"]),
+    visibility = ["PUBLIC"],
+    deps = [":unicode-segmentation"],
+)
+
+rust_library(
+    name = "codespan-reporting",
+    srcs = glob(["vendor/codespan-reporting-0.7.0/src/**"]),
+    visibility = ["PUBLIC"],
+    deps = [
+        ":codespan",
+        ":termcolor",
+        ":unicode-width",
+    ],
+)
+
+rust_library(
+    name = "heck",
+    srcs = glob(["vendor/heck-0.3.1/src/**"]),
+    edition = "2015",
+    deps = [":unicode-segmentation"],
+)
+
+rust_library(
+    name = "lazy_static",
+    srcs = glob(["vendor/lazy_static-1.4.0/src/**"]),
+)
+
+rust_library(
+    name = "link-cplusplus",
+    srcs = glob(["vendor/link-cplusplus-1.0.1/src/**"]),
+    visibility = ["PUBLIC"],
+)
+
+rust_library(
+    name = "proc-macro-error",
+    srcs = glob(["vendor/proc-macro-error-0.4.9/src/**"]),
+    rustc_flags = ["--cfg=use_fallback"],
+    deps = [
+        ":proc-macro-error-attr",
+        ":proc-macro2",
+        ":quote",
+        ":syn",
+    ],
+)
+
+rust_library(
+    name = "proc-macro-error-attr",
+    srcs = glob(["vendor/proc-macro-error-attr-0.4.9/src/**"]),
+    proc_macro = True,
+    deps = [
+        ":proc-macro2",
+        ":quote",
+        ":rustversion",
+        ":syn",
+        ":syn-mid",
+    ],
+)
+
+rust_library(
+    name = "proc-macro2",
+    srcs = glob(["vendor/proc-macro2-1.0.8/src/**"]),
+    visibility = ["PUBLIC"],
+    features = [
+        "proc-macro",
+        "span-locations",
+    ],
+    rustc_flags = [
+        "--cfg=span_locations",
+        "--cfg=use_proc_macro",
+        "--cfg=wrap_proc_macro",
+    ],
+    deps = [":unicode-xid"],
+)
+
+rust_library(
+    name = "quote",
+    srcs = glob(["vendor/quote-1.0.2/src/**"]),
+    visibility = ["PUBLIC"],
+    features = ["proc-macro"],
+    deps = [":proc-macro2"],
+)
+
+rust_library(
+    name = "rustversion",
+    srcs = glob(["vendor/rustversion-1.0.2/src/**"]),
+    mapped_srcs = {
+        ":rustversion-buildscript-run": "vendor/rustversion-1.0.2/src/generated",
+    },
+    proc_macro = True,
+    env = {
+        "OUT_DIR": "generated",
+    },
+    deps = [
+        ":proc-macro2",
+        ":quote",
+        ":syn",
+    ],
+)
+
+rust_binary(
+    name = "rustversion-buildscript",
+    srcs = glob(["vendor/rustversion-1.0.2/build/**"]),
+    crate_root = "vendor/rustversion-1.0.2/build/build.rs",
+)
+
+genrule(
+    name = "rustversion-buildscript-run",
+    cmd = "OUT_DIR=${OUT} $(exe :rustversion-buildscript)",
+    type = "build.rs",
+    out = ".",
+)
+
+rust_library(
+    name = "structopt",
+    srcs = glob(["vendor/structopt-0.3.9/src/**"]),
+    visibility = ["PUBLIC"],
+    deps = [
+        ":clap",
+        ":lazy_static",
+        ":structopt-derive",
+    ],
+)
+
+rust_library(
+    name = "structopt-derive",
+    srcs = glob(["vendor/structopt-derive-0.4.2/src/**"]),
+    proc_macro = True,
+    deps = [
+        ":heck",
+        ":proc-macro-error",
+        ":proc-macro2",
+        ":quote",
+        ":syn",
+    ],
+)
+
+rust_library(
+    name = "syn",
+    srcs = glob(["vendor/syn-1.0.14/src/**"]),
+    visibility = ["PUBLIC"],
+    features = [
+        "clone-impls",
+        "derive",
+        "full",
+        "parsing",
+        "printing",
+        "proc-macro",
+    ],
+    deps = [
+        ":proc-macro2",
+        ":quote",
+        ":unicode-xid",
+    ],
+)
+
+rust_library(
+    name = "syn-mid",
+    srcs = glob(["vendor/syn-mid-0.5.0/src/**"]),
+    deps = [
+        ":proc-macro2",
+        ":quote",
+        ":syn",
+    ],
+)
+
+rust_library(
+    name = "termcolor",
+    srcs = glob(["vendor/termcolor-1.1.0/src/**"]),
+)
+
+rust_library(
+    name = "textwrap",
+    srcs = glob(["vendor/textwrap-0.11.0/src/**"]),
+    deps = [":unicode-width"],
+)
+
+rust_library(
+    name = "thiserror",
+    srcs = glob(["vendor/thiserror-1.0.11/src/**"]),
+    visibility = ["PUBLIC"],
+    deps = [":thiserror-impl"],
+)
+
+rust_library(
+    name = "thiserror-impl",
+    srcs = glob(["vendor/thiserror-impl-1.0.11/src/**"]),
+    proc_macro = True,
+    deps = [
+        ":proc-macro2",
+        ":quote",
+        ":syn",
+    ],
+)
+
+rust_library(
+    name = "unicode-segmentation",
+    srcs = glob(["vendor/unicode-segmentation-1.6.0/src/**"]),
+    edition = "2015",
+)
+
+rust_library(
+    name = "unicode-width",
+    srcs = glob(["vendor/unicode-width-0.1.7/src/**"]),
+)
+
+rust_library(
+    name = "unicode-xid",
+    srcs = glob(["vendor/unicode-xid-0.2.0/src/**"]),
+)
diff --git a/third-party/Cargo.lock b/third-party/Cargo.lock
new file mode 100644
index 00000000..fda20257
--- /dev/null
+++ b/third-party/Cargo.lock
@@ -0,0 +1,434 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+[[package]]
+name = "ansi_term"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
+dependencies = [
+ "winapi",
+]
+
+[[package]]
+name = "anyhow"
+version = "1.0.26"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7825f6833612eb2414095684fcf6c635becf3ce97fe48cf6421321e93bfbd53c"
+
+[[package]]
+name = "atty"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
+dependencies = [
+ "hermit-abi",
+ "libc",
+ "winapi",
+]
+
+[[package]]
+name = "bitflags"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
+
+[[package]]
+name = "cc"
+version = "1.0.50"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "95e28fa049fda1c330bcf9d723be7663a899c4679724b34c81e9f5a326aab8cd"
+
+[[package]]
+name = "clap"
+version = "2.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5067f5bb2d80ef5d68b4c87db81601f0b75bca627bc2ef76b141d7b846a3c6d9"
+dependencies = [
+ "ansi_term",
+ "atty",
+ "bitflags",
+ "strsim",
+ "textwrap",
+ "unicode-width",
+ "vec_map",
+]
+
+[[package]]
+name = "codespan"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "21094c000d5db8035900662bbfddec754e79f795324254ac0817f36e5ccfc3f5"
+dependencies = [
+ "unicode-segmentation",
+]
+
+[[package]]
+name = "codespan-reporting"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "657b2c99e1f17bc3e5153808d9f704c8ba6171c3fe45e69fde26e2876156938b"
+dependencies = [
+ "codespan",
+ "termcolor",
+ "unicode-width",
+]
+
+[[package]]
+name = "cxx"
+version = "0.1.2"
+dependencies = [
+ "anyhow",
+ "cc",
+ "codespan",
+ "codespan-reporting",
+ "cxxbridge-macro",
+ "link-cplusplus",
+ "proc-macro2",
+ "quote",
+ "rustversion",
+ "syn",
+ "thiserror",
+ "trybuild",
+]
+
+[[package]]
+name = "cxxbridge-cmd"
+version = "0.1.2"
+dependencies = [
+ "anyhow",
+ "codespan",
+ "codespan-reporting",
+ "proc-macro2",
+ "quote",
+ "structopt",
+ "syn",
+ "thiserror",
+]
+
+[[package]]
+name = "cxxbridge-demo"
+version = "0.0.0"
+dependencies = [
+ "cxx",
+]
+
+[[package]]
+name = "cxxbridge-macro"
+version = "0.1.2"
+dependencies = [
+ "cxx",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "glob"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
+
+[[package]]
+name = "heck"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205"
+dependencies = [
+ "unicode-segmentation",
+]
+
+[[package]]
+name = "hermit-abi"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2c55f143919fbc0bc77e427fe2d74cf23786d7c1875666f2fde3ac3c659bb67"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "itoa"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b8b7a7c0c47db5545ed3fef7468ee7bb5b74691498139e4b3f6a20685dc6dd8e"
+
+[[package]]
+name = "lazy_static"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+
+[[package]]
+name = "libc"
+version = "0.2.66"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d515b1f41455adea1313a4a2ac8a8a477634fbae63cc6100e3aebb207ce61558"
+
+[[package]]
+name = "link-cplusplus"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "628cd9d7b5c99cb930617438a3d7896f5eb734647bc2838ded9ca50689507295"
+dependencies = [
+ "cc",
+]
+
+[[package]]
+name = "proc-macro-error"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "052b3c9af39c7e5e94245f820530487d19eb285faedcb40e0c3275132293f242"
+dependencies = [
+ "proc-macro-error-attr",
+ "proc-macro2",
+ "quote",
+ "rustversion",
+ "syn",
+]
+
+[[package]]
+name = "proc-macro-error-attr"
+version = "0.4.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d175bef481c7902e63e3165627123fff3502f06ac043d3ef42d08c1246da9253"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "rustversion",
+ "syn",
+ "syn-mid",
+]
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3acb317c6ff86a4e579dfa00fc5e6cca91ecbb4e7eb2df0468805b674eb88548"
+dependencies = [
+ "unicode-xid",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "053a8c8bcc71fcce321828dc897a98ab9760bef03a4fc36693c231e5b3216cfe"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "rustversion"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b3bba175698996010c4f6dce5e7f173b6eb781fce25d2cfc45e27091ce0b79f6"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "ryu"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bfa8506c1de11c9c4e4c38863ccbe02a305c8188e85a05a784c9e11e1c3910c8"
+
+[[package]]
+name = "serde"
+version = "1.0.104"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "414115f25f818d7dfccec8ee535d76949ae78584fc4f79a6f45a904bf8ab4449"
+dependencies = [
+ "serde_derive",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.104"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "128f9e303a5a29922045a830221b8f78ec74a5f544944f3d5984f8ec3895ef64"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.48"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9371ade75d4c2d6cb154141b9752cf3781ec9c05e0e5cf35060e1e70ee7b9c25"
+dependencies = [
+ "itoa",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "strsim"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
+
+[[package]]
+name = "structopt"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a1bcbed7d48956fcbb5d80c6b95aedb553513de0a1b451ea92679d999c010e98"
+dependencies = [
+ "clap",
+ "lazy_static",
+ "structopt-derive",
+]
+
+[[package]]
+name = "structopt-derive"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "095064aa1f5b94d14e635d0a5684cf140c43ae40a0fd990708d38f5d669e5f64"
+dependencies = [
+ "heck",
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