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Record the location of parsed functions.

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Remember the location of the 'function' keyword that starts every
function. This can be useful for reporting test failures etc.
This commit is contained in:
Jakob Stoklund Olesen
2016-09-17 11:42:08 -07:00
parent 81f26422fa
commit a4774ce87d
2 changed files with 7 additions and 3 deletions
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8
cranelift/src/libreader/parser.rs
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@@ -523,7 +523,7 @@ impl<'a> Parser<'a> {
self.comments.clear();
self.gather_comments(AnyEntity::Function);
let (name, sig) = try!(self.parse_function_spec());
let (location, name, sig) = try!(self.parse_function_spec());
let mut ctx = Context::new(Function::with_name_signature(name, sig));
// function ::= function-spec * "{" preamble function-body "}"
@@ -545,6 +545,7 @@ impl<'a> Parser<'a> {
try!(ctx.rewrite_references());
let details = Details {
location: location,
comments: mem::replace(&mut self.comments, Vec::new()),
map: sourcemap::new(ctx.values, ctx.ebbs, ctx.stack_slots, ctx.jump_tables),
};
@@ -556,8 +557,9 @@ impl<'a> Parser<'a> {
//
// function-spec ::= * "function" name signature
//
fn parse_function_spec(&mut self) -> Result<(FunctionName, Signature)> {
fn parse_function_spec(&mut self) -> Result<(Location, FunctionName, Signature)> {
try!(self.match_token(Token::Function, "expected 'function' keyword"));
let location = self.loc;
// function-spec ::= "function" * name signature
let name = try!(self.parse_function_name());
@@ -565,7 +567,7 @@ impl<'a> Parser<'a> {
// function-spec ::= "function" name * signature
let sig = try!(self.parse_signature());
Ok((name, sig))
Ok((location, name, sig))
}
// Parse a function name.