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Consume result in wf! macro, considering write errors to be fatal.

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This commit is contained in:
Robert Straw
2014-03-20 08:54:22 -05:00
parent 9e1189a0b9
commit ec658723ca
1 changed files with 8 additions and 3 deletions
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src/codegen/branchify.rs
+8 -3
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@@ -94,9 +94,14 @@ pub fn generate_branchified_method(
macro_rules! wf(($($x:tt)*) => ({
let indentstr = " ".repeat(indent * 4);
let s = format!($($x)*);
writer.write(indentstr.as_bytes());
writer.write(s.as_bytes());
writer.write(bytes!("\n"));
let result = writer.write(indentstr.as_bytes())
.and(writer.write(s.as_bytes()))
.and(writer.write(bytes!("\n")));
match result {
Ok(_) => {},
Err(e) => fail!("write error: {:s}", e.desc),
}
}))
fn r(writer: &mut BufferedWriter<File>, branch: &ParseBranch, prefix: &str, indent: uint, read_call: &str,