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avoid unwraps

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This commit is contained in:
Nikolay Volf 2016-06-10 09:53:09 +03:00
parent 6e7828fa71
commit 383b7a3cab
3 changed files with 26 additions and 17 deletions
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2
ipc/codegen/Cargo.toml
View File

@ -15,7 +15,7 @@ with-syntex = ["quasi/with-syntex", "quasi_codegen", "quasi_codegen/with-syntex"
[build-dependencies] [build-dependencies]
quasi_codegen = { version = "0.11", optional = true } quasi_codegen = { version = "0.11", optional = true }
syntex = { version = "*", optional = true } syntex = { version = "0.33", optional = true }
[dependencies] [dependencies]
aster = { version = "0.17", default-features = false } aster = { version = "0.17", default-features = false }

12
ipc/codegen/src/serialization.rs
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@ -89,7 +89,7 @@ fn serialize_item(
let (size_expr, read_expr, write_expr) = let (size_expr, read_expr, write_expr) =
(binary_expressions.size, binary_expressions.read, binary_expressions.write); (binary_expressions.size, binary_expressions.read, binary_expressions.write);
Ok(quote_item!(cx, match quote_item!(cx,
impl $generics ::ipc::BinaryConvertable for $ty $where_clause { impl $generics ::ipc::BinaryConvertable for $ty $where_clause {
fn size(&self) -> usize { fn size(&self) -> usize {
$size_expr $size_expr
@ -106,8 +106,16 @@ fn serialize_item(
fn len_params() -> usize { fn len_params() -> usize {
1 1
} }
})
{
Some(item) => Ok(item),
None => {
cx.span_err(
item.span,
"syntax error expanding serialization implementation");
Err(Error)
}
} }
).unwrap())
} }
#[allow(unreachable_code)] #[allow(unreachable_code)]

27
ipc/tests/build.rs
View File

@ -19,20 +19,20 @@ extern crate ethcore_ipc_codegen as codegen;
use std::env; use std::env;
use std::path::Path; use std::path::Path;
use std::process::exit;
pub fn main() { pub fn main() {
let out_dir = env::var_os("OUT_DIR").unwrap(); let out_dir = env::var_os("OUT_DIR").unwrap();
// ipc pass // rpc pass
{ if {
let src = Path::new("nested.rs.in"); let src = Path::new("nested.rs.in");
let dst = Path::new(&out_dir).join("nested_ipc.rs"); let dst = Path::new(&out_dir).join("nested_ipc.rs");
let mut registry = syntex::Registry::new(); let mut registry = syntex::Registry::new();
codegen::register(&mut registry); codegen::register(&mut registry);
registry.expand("", &src, &dst).unwrap(); registry.expand("", &src, &dst).is_ok()
} }
// serialization pass
// serde pass
{ {
let src = Path::new(&out_dir).join("nested_ipc.rs"); let src = Path::new(&out_dir).join("nested_ipc.rs");
let dst = Path::new(&out_dir).join("nested_cg.rs"); let dst = Path::new(&out_dir).join("nested_cg.rs");
@ -41,16 +41,15 @@ pub fn main() {
registry.expand("", &src, &dst).unwrap(); registry.expand("", &src, &dst).unwrap();
} }
// ipc pass // rpc pass
{ if {
let src = Path::new("service.rs.in"); let src = Path::new("service.rs.in");
let dst = Path::new(&out_dir).join("service_ipc.rs"); let dst = Path::new(&out_dir).join("service_ipc.rs");
let mut registry = syntex::Registry::new(); let mut registry = syntex::Registry::new();
codegen::register(&mut registry); codegen::register(&mut registry);
registry.expand("", &src, &dst).unwrap(); registry.expand("", &src, &dst).is_ok()
} }
// serialization pass
// serde pass
{ {
let src = Path::new(&out_dir).join("service_ipc.rs"); let src = Path::new(&out_dir).join("service_ipc.rs");
let dst = Path::new(&out_dir).join("service_cg.rs"); let dst = Path::new(&out_dir).join("service_cg.rs");
@ -59,13 +58,15 @@ pub fn main() {
registry.expand("", &src, &dst).unwrap(); registry.expand("", &src, &dst).unwrap();
} }
// rpc pass
// ipc pass
{ {
let src = Path::new("binary.rs.in"); let src = Path::new("binary.rs.in");
let dst = Path::new(&out_dir).join("binary.rs"); let dst = Path::new(&out_dir).join("binary.rs");
let mut registry = syntex::Registry::new(); let mut registry = syntex::Registry::new();
codegen::register(&mut registry); codegen::register(&mut registry);
registry.expand("", &src, &dst).unwrap(); if let Err(err_msg) = registry.expand("", &src, &dst) {
println!("error: {}", err_msg);
exit(1);
}
} }
} }