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libsyntax: add COMMAND_LINE_SP and use it for spans generated from the command line

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This commit is contained in:
Manish Goregaokar 2014-12-11 01:48:23 +05:30
parent c41cafb10c
commit 0bd022c893
3 changed files with 23 additions and 8 deletions
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7
src/libsyntax/codemap.rs
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@ -105,6 +105,11 @@ pub struct Span {
pub const DUMMY_SP: Span = Span { lo: BytePos(0), hi: BytePos(0), expn_id: NO_EXPANSION };
// Generic span to be used for code originating from the command line
pub const COMMAND_LINE_SP: Span = Span { lo: BytePos(0),
hi: BytePos(0),
expn_id: COMMAND_LINE_EXPN };
#[derive(Clone, PartialEq, Eq, RustcEncodable, RustcDecodable, Hash, Show, Copy)]
pub struct Spanned<T> {
pub node: T,
@ -235,6 +240,8 @@ pub struct ExpnInfo {
pub struct ExpnId(u32);
pub const NO_EXPANSION: ExpnId = ExpnId(-1);
// For code appearing from the command line
pub const COMMAND_LINE_EXPN: ExpnId = ExpnId(-2);
impl ExpnId {
pub fn from_llvm_cookie(cookie: c_uint) -> ExpnId {