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https://github.com/rust-lang/rust-analyzer
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Merge #3920
3920: Implement expand_task and list_macros in proc_macro_srv r=matklad a=edwin0cheng This PR finish up the remain `proc_macro_srv` implementation : 1. Added dylib loading code for proc-macro crate dylib. Note that we have to add some special flags for unix loading because of a bug in old version of glibc, see https://github.com/fedochet/rust-proc-macro-panic-inside-panic-expample/issues/1 and https://github.com/rust-lang/rust/issues/60593 for details. 2. Added tests for proc-macro expansion: We use a trick here by adding `serde_derive` to dev-dependencies and calling `cargo-metadata` for searching its dylib path, and expand it in our tests. [EDIT] Note that this PR **DO NOT** implement the final glue code with rust-analzyer and proc-macro-srv yet. Co-authored-by: Edwin Cheng <edwin0cheng@gmail.com>
This commit is contained in:
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GitHub
commit
0ecdba20df
8 changed files with 600 additions and 5 deletions
49
Cargo.lock
generated
49
Cargo.lock
generated
|
|
@ -424,6 +424,17 @@ dependencies = [
|
|||
"regex",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "goblin"
|
||||
version = "0.2.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ddd5e3132801a1ac34ac53b97acde50c4685414dd2f291b9ea52afa6f07468c8"
|
||||
dependencies = [
|
||||
"log",
|
||||
"plain",
|
||||
"scroll",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "heck"
|
||||
version = "0.3.1"
|
||||
|
|
@ -586,6 +597,15 @@ version = "0.2.68"
|
|||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dea0c0405123bba743ee3f91f49b1c7cfb684eef0da0a50110f758ccf24cdff0"
|
||||
|
||||
[[package]]
|
||||
name = "libloading"
|
||||
version = "0.6.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2c979a19ffb457f0273965c333053f3d586bf759bf7b683fbebc37f9a9ebedc4"
|
||||
dependencies = [
|
||||
"winapi 0.3.8",
|
||||
]
|
||||
|
||||
[[package]]
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||||
name = "linked-hash-map"
|
||||
version = "0.5.2"
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||||
|
|
@ -825,6 +845,12 @@ version = "0.3.1"
|
|||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3ad1f1b834a05d42dae330066e9699a173b28185b3bdc3dbf14ca239585de8cc"
|
||||
|
||||
[[package]]
|
||||
name = "plain"
|
||||
version = "0.2.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b4596b6d070b27117e987119b4dac604f3c58cfb0b191112e24771b2faeac1a6"
|
||||
|
||||
[[package]]
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||||
name = "ppv-lite86"
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||||
version = "0.2.6"
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|
|
@ -1082,10 +1108,13 @@ version = "0.1.0"
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dependencies = [
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"cargo_metadata",
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"difference",
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"goblin",
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"libloading",
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"ra_mbe",
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"ra_proc_macro",
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"ra_tt",
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"serde_derive",
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"test_utils",
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]
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|
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[[package]]
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||||
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|
@ -1403,6 +1432,26 @@ version = "1.1.0"
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|||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
|
||||
|
||||
[[package]]
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||||
name = "scroll"
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||||
version = "0.10.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "abb2332cb595d33f7edd5700f4cbf94892e680c7f0ae56adab58a35190b66cb1"
|
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dependencies = [
|
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"scroll_derive",
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||||
]
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[[package]]
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name = "scroll_derive"
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version = "0.10.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f8584eea9b9ff42825b46faf46a8c24d2cff13ec152fa2a50df788b87c07ee28"
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dependencies = [
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"proc-macro2",
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"quote",
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"syn",
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||||
]
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[[package]]
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name = "semver"
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version = "0.9.0"
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|
|
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|
@ -12,6 +12,9 @@ doctest = false
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ra_tt = { path = "../ra_tt" }
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ra_mbe = { path = "../ra_mbe" }
|
||||
ra_proc_macro = { path = "../ra_proc_macro" }
|
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goblin = "0.2.1"
|
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libloading = "0.6.0"
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test_utils = { path = "../test_utils" }
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[dev-dependencies]
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cargo_metadata = "0.9.1"
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|
|
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211
crates/ra_proc_macro_srv/src/dylib.rs
Normal file
211
crates/ra_proc_macro_srv/src/dylib.rs
Normal file
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@ -0,0 +1,211 @@
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//! Handles dynamic library loading for proc macro
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use crate::{proc_macro::bridge, rustc_server::TokenStream};
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use std::path::Path;
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use goblin::{mach::Mach, Object};
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use libloading::Library;
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use ra_proc_macro::ProcMacroKind;
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use std::io::Error as IoError;
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use std::io::ErrorKind as IoErrorKind;
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|
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const NEW_REGISTRAR_SYMBOL: &str = "_rustc_proc_macro_decls_";
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|
||||
fn invalid_data_err(e: impl Into<Box<dyn std::error::Error + Send + Sync>>) -> IoError {
|
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IoError::new(IoErrorKind::InvalidData, e)
|
||||
}
|
||||
|
||||
fn get_symbols_from_lib(file: &Path) -> Result<Vec<String>, IoError> {
|
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let buffer = std::fs::read(file)?;
|
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let object = Object::parse(&buffer).map_err(invalid_data_err)?;
|
||||
|
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match object {
|
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Object::Elf(elf) => {
|
||||
let symbols = elf.dynstrtab.to_vec().map_err(invalid_data_err)?;
|
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let names = symbols.iter().map(|s| s.to_string()).collect();
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Ok(names)
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}
|
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Object::PE(pe) => {
|
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let symbol_names =
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pe.exports.iter().flat_map(|s| s.name).map(|n| n.to_string()).collect();
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Ok(symbol_names)
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}
|
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Object::Mach(mach) => match mach {
|
||||
Mach::Binary(binary) => {
|
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let exports = binary.exports().map_err(invalid_data_err)?;
|
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let names = exports
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.into_iter()
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.map(|s| {
|
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// In macos doc:
|
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// https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man3/dlsym.3.html
|
||||
// Unlike other dyld API's, the symbol name passed to dlsym() must NOT be
|
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// prepended with an underscore.
|
||||
if s.name.starts_with("_") {
|
||||
s.name[1..].to_string()
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||||
} else {
|
||||
s.name
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||||
}
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})
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.collect();
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Ok(names)
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}
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Mach::Fat(_) => Ok(vec![]),
|
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},
|
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Object::Archive(_) | Object::Unknown(_) => Ok(vec![]),
|
||||
}
|
||||
}
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|
||||
fn is_derive_registrar_symbol(symbol: &str) -> bool {
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symbol.contains(NEW_REGISTRAR_SYMBOL)
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}
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|
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fn find_registrar_symbol(file: &Path) -> Result<Option<String>, IoError> {
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let symbols = get_symbols_from_lib(file)?;
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Ok(symbols.into_iter().find(|s| is_derive_registrar_symbol(s)))
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}
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|
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/// Loads dynamic library in platform dependent manner.
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///
|
||||
/// For unix, you have to use RTLD_DEEPBIND flag to escape problems described
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||||
/// [here](https://github.com/fedochet/rust-proc-macro-panic-inside-panic-expample)
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/// and [here](https://github.com/rust-lang/rust/issues/60593).
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///
|
||||
/// Usage of RTLD_DEEPBIND
|
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/// [here](https://github.com/fedochet/rust-proc-macro-panic-inside-panic-expample/issues/1)
|
||||
///
|
||||
/// It seems that on Windows that behaviour is default, so we do nothing in that case.
|
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#[cfg(windows)]
|
||||
fn load_library(file: &Path) -> Result<Library, libloading::Error> {
|
||||
Library::new(file)
|
||||
}
|
||||
|
||||
#[cfg(unix)]
|
||||
fn load_library(file: &Path) -> Result<Library, libloading::Error> {
|
||||
use libloading::os::unix::Library as UnixLibrary;
|
||||
use std::os::raw::c_int;
|
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|
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const RTLD_NOW: c_int = 0x00002;
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const RTLD_DEEPBIND: c_int = 0x00008;
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||||
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||||
UnixLibrary::open(Some(file), RTLD_NOW | RTLD_DEEPBIND).map(|lib| lib.into())
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}
|
||||
|
||||
struct ProcMacroLibraryLibloading {
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// Hold the dylib to prevent it for unloadeding
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_lib: Library,
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exported_macros: Vec<bridge::client::ProcMacro>,
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}
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|
||||
impl ProcMacroLibraryLibloading {
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fn open(file: &Path) -> Result<Self, IoError> {
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let symbol_name = find_registrar_symbol(file)?
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.ok_or(invalid_data_err(format!("Cannot find registrar symbol in file {:?}", file)))?;
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let lib = load_library(file).map_err(invalid_data_err)?;
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let exported_macros = {
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let macros: libloading::Symbol<&&[bridge::client::ProcMacro]> =
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unsafe { lib.get(symbol_name.as_bytes()) }.map_err(invalid_data_err)?;
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macros.to_vec()
|
||||
};
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||||
|
||||
Ok(ProcMacroLibraryLibloading { _lib: lib, exported_macros })
|
||||
}
|
||||
}
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|
||||
type ProcMacroLibraryImpl = ProcMacroLibraryLibloading;
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||||
|
||||
pub struct Expander {
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||||
libs: Vec<ProcMacroLibraryImpl>,
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||||
}
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||||
|
||||
impl Expander {
|
||||
pub fn new<P: AsRef<Path>>(lib: &P) -> Result<Expander, String> {
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||||
let mut libs = vec![];
|
||||
/* Some libraries for dynamic loading require canonicalized path (even when it is
|
||||
already absolute
|
||||
*/
|
||||
let lib =
|
||||
lib.as_ref().canonicalize().expect(&format!("Cannot canonicalize {:?}", lib.as_ref()));
|
||||
|
||||
let library = ProcMacroLibraryImpl::open(&lib).map_err(|e| e.to_string())?;
|
||||
libs.push(library);
|
||||
|
||||
Ok(Expander { libs })
|
||||
}
|
||||
|
||||
pub fn expand(
|
||||
&self,
|
||||
macro_name: &str,
|
||||
macro_body: &ra_tt::Subtree,
|
||||
attributes: Option<&ra_tt::Subtree>,
|
||||
) -> Result<ra_tt::Subtree, bridge::PanicMessage> {
|
||||
let parsed_body = TokenStream::with_subtree(macro_body.clone());
|
||||
|
||||
let parsed_attributes = attributes
|
||||
.map_or(crate::rustc_server::TokenStream::new(), |attr| {
|
||||
TokenStream::with_subtree(attr.clone())
|
||||
});
|
||||
|
||||
for lib in &self.libs {
|
||||
for proc_macro in &lib.exported_macros {
|
||||
match proc_macro {
|
||||
bridge::client::ProcMacro::CustomDerive { trait_name, client, .. }
|
||||
if *trait_name == macro_name =>
|
||||
{
|
||||
let res = client.run(
|
||||
&crate::proc_macro::bridge::server::SameThread,
|
||||
crate::rustc_server::Rustc::default(),
|
||||
parsed_body,
|
||||
);
|
||||
return res.map(|it| it.subtree);
|
||||
}
|
||||
bridge::client::ProcMacro::Bang { name, client } if *name == macro_name => {
|
||||
let res = client.run(
|
||||
&crate::proc_macro::bridge::server::SameThread,
|
||||
crate::rustc_server::Rustc::default(),
|
||||
parsed_body,
|
||||
);
|
||||
return res.map(|it| it.subtree);
|
||||
}
|
||||
bridge::client::ProcMacro::Attr { name, client } if *name == macro_name => {
|
||||
let res = client.run(
|
||||
&crate::proc_macro::bridge::server::SameThread,
|
||||
crate::rustc_server::Rustc::default(),
|
||||
parsed_attributes,
|
||||
parsed_body,
|
||||
);
|
||||
|
||||
return res.map(|it| it.subtree);
|
||||
}
|
||||
_ => continue,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
Err(bridge::PanicMessage::String("Nothing to expand".to_string()))
|
||||
}
|
||||
|
||||
pub fn list_macros(&self) -> Result<Vec<(String, ProcMacroKind)>, bridge::PanicMessage> {
|
||||
let mut result = vec![];
|
||||
|
||||
for lib in &self.libs {
|
||||
for proc_macro in &lib.exported_macros {
|
||||
let res = match proc_macro {
|
||||
bridge::client::ProcMacro::CustomDerive { trait_name, .. } => {
|
||||
(trait_name.to_string(), ProcMacroKind::CustomDerive)
|
||||
}
|
||||
bridge::client::ProcMacro::Bang { name, .. } => {
|
||||
(name.to_string(), ProcMacroKind::FuncLike)
|
||||
}
|
||||
bridge::client::ProcMacro::Attr { name, .. } => {
|
||||
(name.to_string(), ProcMacroKind::Attr)
|
||||
}
|
||||
};
|
||||
result.push(res);
|
||||
}
|
||||
}
|
||||
|
||||
Ok(result)
|
||||
}
|
||||
}
|
||||
|
|
@ -17,13 +17,41 @@ mod proc_macro;
|
|||
#[doc(hidden)]
|
||||
mod rustc_server;
|
||||
|
||||
mod dylib;
|
||||
|
||||
use proc_macro::bridge::client::TokenStream;
|
||||
use ra_proc_macro::{ExpansionResult, ExpansionTask, ListMacrosResult, ListMacrosTask};
|
||||
|
||||
pub fn expand_task(_task: &ExpansionTask) -> Result<ExpansionResult, String> {
|
||||
unimplemented!()
|
||||
pub fn expand_task(task: &ExpansionTask) -> Result<ExpansionResult, String> {
|
||||
let expander = dylib::Expander::new(&task.lib)
|
||||
.expect(&format!("Cannot expand with provided libraries: ${:?}", &task.lib));
|
||||
|
||||
match expander.expand(&task.macro_name, &task.macro_body, task.attributes.as_ref()) {
|
||||
Ok(expansion) => Ok(ExpansionResult { expansion }),
|
||||
Err(msg) => {
|
||||
let reason = format!(
|
||||
"Cannot perform expansion for {}: error {:?}!",
|
||||
&task.macro_name,
|
||||
msg.as_str()
|
||||
);
|
||||
Err(reason)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn list_macros(_task: &ListMacrosTask) -> Result<ListMacrosResult, String> {
|
||||
unimplemented!()
|
||||
pub fn list_macros(task: &ListMacrosTask) -> Result<ListMacrosResult, String> {
|
||||
let expander = dylib::Expander::new(&task.lib)
|
||||
.expect(&format!("Cannot expand with provided libraries: ${:?}", &task.lib));
|
||||
|
||||
match expander.list_macros() {
|
||||
Ok(macros) => Ok(ListMacrosResult { macros }),
|
||||
Err(msg) => {
|
||||
let reason =
|
||||
format!("Cannot perform expansion for {:?}: error {:?}!", &task.lib, msg.as_str());
|
||||
Err(reason)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests;
|
||||
|
|
|
|||
|
|
@ -34,6 +34,10 @@ impl TokenStream {
|
|||
TokenStream { subtree: Default::default() }
|
||||
}
|
||||
|
||||
pub fn with_subtree(subtree: tt::Subtree) -> Self {
|
||||
TokenStream { subtree }
|
||||
}
|
||||
|
||||
pub fn is_empty(&self) -> bool {
|
||||
self.subtree.token_trees.is_empty()
|
||||
}
|
||||
|
|
|
|||
188
crates/ra_proc_macro_srv/src/tests/fixtures/test_serialize_proc_macro.txt
vendored
Normal file
188
crates/ra_proc_macro_srv/src/tests/fixtures/test_serialize_proc_macro.txt
vendored
Normal file
|
|
@ -0,0 +1,188 @@
|
|||
SUBTREE $
|
||||
PUNCH # [alone] 4294967295
|
||||
SUBTREE [] 4294967295
|
||||
IDENT allow 4294967295
|
||||
SUBTREE () 4294967295
|
||||
IDENT non_upper_case_globals 4294967295
|
||||
PUNCH , [alone] 4294967295
|
||||
IDENT unused_attributes 4294967295
|
||||
PUNCH , [alone] 4294967295
|
||||
IDENT unused_qualifications 4294967295
|
||||
IDENT const 4294967295
|
||||
IDENT _IMPL_SERIALIZE_FOR_Foo 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
SUBTREE () 4294967295
|
||||
PUNCH = [alone] 4294967295
|
||||
SUBTREE {} 4294967295
|
||||
PUNCH # [alone] 4294967295
|
||||
SUBTREE [] 4294967295
|
||||
IDENT allow 4294967295
|
||||
SUBTREE () 4294967295
|
||||
IDENT unknown_lints 4294967295
|
||||
PUNCH # [alone] 4294967295
|
||||
SUBTREE [] 4294967295
|
||||
IDENT cfg_attr 4294967295
|
||||
SUBTREE () 4294967295
|
||||
IDENT feature 4294967295
|
||||
PUNCH = [alone] 4294967295
|
||||
SUBTREE $
|
||||
LITERAL "cargo-clippy" 0
|
||||
PUNCH , [alone] 4294967295
|
||||
IDENT allow 4294967295
|
||||
SUBTREE () 4294967295
|
||||
IDENT useless_attribute 4294967295
|
||||
PUNCH # [alone] 4294967295
|
||||
SUBTREE [] 4294967295
|
||||
IDENT allow 4294967295
|
||||
SUBTREE () 4294967295
|
||||
IDENT rust_2018_idioms 4294967295
|
||||
IDENT extern 4294967295
|
||||
IDENT crate 4294967295
|
||||
IDENT serde 4294967295
|
||||
IDENT as 4294967295
|
||||
IDENT _serde 4294967295
|
||||
PUNCH ; [alone] 4294967295
|
||||
PUNCH # [alone] 4294967295
|
||||
SUBTREE [] 4294967295
|
||||
IDENT allow 4294967295
|
||||
SUBTREE () 4294967295
|
||||
IDENT unused_macros 4294967295
|
||||
IDENT macro_rules 4294967295
|
||||
PUNCH ! [alone] 4294967295
|
||||
IDENT try 4294967295
|
||||
SUBTREE {} 4294967295
|
||||
SUBTREE () 4294967295
|
||||
PUNCH $ [alone] 4294967295
|
||||
IDENT __expr 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT expr 4294967295
|
||||
PUNCH = [joint] 4294967295
|
||||
PUNCH > [alone] 4294967295
|
||||
SUBTREE {} 4294967295
|
||||
IDENT match 4294967295
|
||||
PUNCH $ [alone] 4294967295
|
||||
IDENT __expr 4294967295
|
||||
SUBTREE {} 4294967295
|
||||
IDENT _serde 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT export 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT Ok 4294967295
|
||||
SUBTREE () 4294967295
|
||||
IDENT __val 4294967295
|
||||
PUNCH = [joint] 4294967295
|
||||
PUNCH > [alone] 4294967295
|
||||
IDENT __val 4294967295
|
||||
PUNCH , [alone] 4294967295
|
||||
IDENT _serde 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT export 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT Err 4294967295
|
||||
SUBTREE () 4294967295
|
||||
IDENT __err 4294967295
|
||||
PUNCH = [joint] 4294967295
|
||||
PUNCH > [alone] 4294967295
|
||||
SUBTREE {} 4294967295
|
||||
IDENT return 4294967295
|
||||
IDENT _serde 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT export 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT Err 4294967295
|
||||
SUBTREE () 4294967295
|
||||
IDENT __err 4294967295
|
||||
PUNCH ; [alone] 4294967295
|
||||
PUNCH # [alone] 4294967295
|
||||
SUBTREE [] 4294967295
|
||||
IDENT automatically_derived 4294967295
|
||||
IDENT impl 4294967295
|
||||
IDENT _serde 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT Serialize 4294967295
|
||||
IDENT for 4294967295
|
||||
IDENT Foo 1
|
||||
SUBTREE {} 4294967295
|
||||
IDENT fn 4294967295
|
||||
IDENT serialize 4294967295
|
||||
PUNCH < [alone] 4294967295
|
||||
IDENT __S 4294967295
|
||||
PUNCH > [alone] 4294967295
|
||||
SUBTREE () 4294967295
|
||||
PUNCH & [alone] 4294967295
|
||||
IDENT self 4294967295
|
||||
PUNCH , [alone] 4294967295
|
||||
IDENT __serializer 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT __S 4294967295
|
||||
PUNCH - [joint] 4294967295
|
||||
PUNCH > [alone] 4294967295
|
||||
IDENT _serde 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT export 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT Result 4294967295
|
||||
PUNCH < [alone] 4294967295
|
||||
IDENT __S 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT Ok 4294967295
|
||||
PUNCH , [alone] 4294967295
|
||||
IDENT __S 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT Error 4294967295
|
||||
PUNCH > [alone] 4294967295
|
||||
IDENT where 4294967295
|
||||
IDENT __S 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT _serde 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT Serializer 4294967295
|
||||
PUNCH , [alone] 4294967295
|
||||
SUBTREE {} 4294967295
|
||||
IDENT let 4294967295
|
||||
IDENT __serde_state 4294967295
|
||||
PUNCH = [alone] 4294967295
|
||||
IDENT try 4294967295
|
||||
PUNCH ! [alone] 4294967295
|
||||
SUBTREE () 4294967295
|
||||
IDENT _serde 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT Serializer 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT serialize_struct 4294967295
|
||||
SUBTREE () 4294967295
|
||||
IDENT __serializer 4294967295
|
||||
PUNCH , [alone] 4294967295
|
||||
LITERAL "Foo" 4294967295
|
||||
PUNCH , [alone] 4294967295
|
||||
IDENT false 4294967295
|
||||
IDENT as 4294967295
|
||||
IDENT usize 4294967295
|
||||
PUNCH ; [alone] 4294967295
|
||||
IDENT _serde 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT ser 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT SerializeStruct 4294967295
|
||||
PUNCH : [joint] 4294967295
|
||||
PUNCH : [alone] 4294967295
|
||||
IDENT end 4294967295
|
||||
SUBTREE () 4294967295
|
||||
IDENT __serde_state 4294967295
|
||||
PUNCH ; [alone] 4294967295
|
||||
47
crates/ra_proc_macro_srv/src/tests/mod.rs
Normal file
47
crates/ra_proc_macro_srv/src/tests/mod.rs
Normal file
|
|
@ -0,0 +1,47 @@
|
|||
//! proc-macro tests
|
||||
|
||||
#[macro_use]
|
||||
mod utils;
|
||||
use test_utils::assert_eq_text;
|
||||
use utils::*;
|
||||
|
||||
#[test]
|
||||
fn test_derive_serialize_proc_macro() {
|
||||
assert_expand(
|
||||
"serde_derive",
|
||||
"Serialize",
|
||||
"1.0.104",
|
||||
r##"struct Foo {}"##,
|
||||
include_str!("fixtures/test_serialize_proc_macro.txt"),
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_derive_serialize_proc_macro_failed() {
|
||||
assert_expand(
|
||||
"serde_derive",
|
||||
"Serialize",
|
||||
"1.0.104",
|
||||
r##"
|
||||
struct {}
|
||||
"##,
|
||||
r##"
|
||||
SUBTREE $
|
||||
IDENT compile_error 4294967295
|
||||
PUNCH ! [alone] 4294967295
|
||||
SUBTREE {} 4294967295
|
||||
LITERAL "expected identifier" 4294967295
|
||||
"##,
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_derive_proc_macro_list() {
|
||||
let res = list("serde_derive", "1.0.104").join("\n");
|
||||
|
||||
assert_eq_text!(
|
||||
&res,
|
||||
r#"Serialize [CustomDerive]
|
||||
Deserialize [CustomDerive]"#
|
||||
);
|
||||
}
|
||||
65
crates/ra_proc_macro_srv/src/tests/utils.rs
Normal file
65
crates/ra_proc_macro_srv/src/tests/utils.rs
Normal file
|
|
@ -0,0 +1,65 @@
|
|||
//! utils used in proc-macro tests
|
||||
|
||||
use crate::dylib;
|
||||
use crate::list_macros;
|
||||
pub use difference::Changeset as __Changeset;
|
||||
use ra_proc_macro::ListMacrosTask;
|
||||
use std::str::FromStr;
|
||||
use test_utils::assert_eq_text;
|
||||
|
||||
mod fixtures {
|
||||
use cargo_metadata::{parse_messages, Message};
|
||||
use std::process::Command;
|
||||
|
||||
// Use current project metadata to get the proc-macro dylib path
|
||||
pub fn dylib_path(crate_name: &str, version: &str) -> std::path::PathBuf {
|
||||
let command = Command::new("cargo")
|
||||
.args(&["check", "--message-format", "json"])
|
||||
.output()
|
||||
.unwrap()
|
||||
.stdout;
|
||||
|
||||
for message in parse_messages(command.as_slice()) {
|
||||
match message.unwrap() {
|
||||
Message::CompilerArtifact(artifact) => {
|
||||
if artifact.target.kind.contains(&"proc-macro".to_string()) {
|
||||
let repr = format!("{} {}", crate_name, version);
|
||||
if artifact.package_id.repr.starts_with(&repr) {
|
||||
return artifact.filenames[0].clone();
|
||||
}
|
||||
}
|
||||
}
|
||||
_ => (), // Unknown message
|
||||
}
|
||||
}
|
||||
|
||||
panic!("No proc-macro dylib for {} found!", crate_name);
|
||||
}
|
||||
}
|
||||
|
||||
fn parse_string(code: &str) -> Option<crate::rustc_server::TokenStream> {
|
||||
Some(crate::rustc_server::TokenStream::from_str(code).unwrap())
|
||||
}
|
||||
|
||||
pub fn assert_expand(
|
||||
crate_name: &str,
|
||||
macro_name: &str,
|
||||
version: &str,
|
||||
fixture: &str,
|
||||
expect: &str,
|
||||
) {
|
||||
let path = fixtures::dylib_path(crate_name, version);
|
||||
let expander = dylib::Expander::new(&path).unwrap();
|
||||
let fixture = parse_string(fixture).unwrap();
|
||||
|
||||
let res = expander.expand(macro_name, &fixture.subtree, None).unwrap();
|
||||
assert_eq_text!(&format!("{:?}", res), &expect.trim());
|
||||
}
|
||||
|
||||
pub fn list(crate_name: &str, version: &str) -> Vec<String> {
|
||||
let path = fixtures::dylib_path(crate_name, version);
|
||||
let task = ListMacrosTask { lib: path };
|
||||
|
||||
let res = list_macros(&task).unwrap();
|
||||
res.macros.into_iter().map(|(name, kind)| format!("{} [{:?}]", name, kind)).collect()
|
||||
}
|
||||
Loading…
Reference in a new issue