Rollup merge of #61420 - felixrabe:patch-2, r=dtolnay

[rust.git] / src / libsyntax_pos / lib.rs

diff --git a/src/libsyntax_pos/lib.rs b/src/libsyntax_pos/lib.rs
index 39859f25f97fb87b867d3abff651dc808c18d8c1..30e075a3396133a2b79a4260addd5fa6f7189c2e 100644 (file)
--- a/src/libsyntax_pos/lib.rs
+++ b/src/libsyntax_pos/lib.rs
@@ -26,6 +26,7 @@
 extern crate serialize as rustc_serialize; // used by deriving
 
 pub mod edition;
+use edition::Edition;
 pub mod hygiene;
 pub use hygiene::{Mark, SyntaxContext, ExpnInfo, ExpnFormat, CompilerDesugaringKind};
 
@@ -52,14 +53,16 @@ pub struct Globals {
     symbol_interner: Lock<symbol::Interner>,
     span_interner: Lock<span_encoding::SpanInterner>,
     hygiene_data: Lock<hygiene::HygieneData>,
+    edition: Edition,
 }
 
 impl Globals {
-    pub fn new() -> Globals {
+    pub fn new(edition: Edition) -> Globals {
         Globals {
             symbol_interner: Lock::new(symbol::Interner::fresh()),
             span_interner: Lock::new(span_encoding::SpanInterner::default()),
             hygiene_data: Lock::new(hygiene::HygieneData::new()),
+            edition,
         }
     }
 }
@@ -345,19 +348,20 @@ pub fn trim_start(self, other: Span) -> Option<Span> {
     /// Returns the source span -- this is either the supplied span, or the span for
     /// the macro callsite that expanded to it.
     pub fn source_callsite(self) -> Span {
-        self.ctxt().outer().expn_info().map(|info| info.call_site.source_callsite()).unwrap_or(self)
+        self.ctxt().outer_expn_info().map(|info| info.call_site.source_callsite()).unwrap_or(self)
     }
 
     /// The `Span` for the tokens in the previous macro expansion from which `self` was generated,
     /// if any.
     pub fn parent(self) -> Option<Span> {
-        self.ctxt().outer().expn_info().map(|i| i.call_site)
+        self.ctxt().outer_expn_info().map(|i| i.call_site)
     }
 
     /// Edition of the crate from which this span came.
     pub fn edition(self) -> edition::Edition {
-        self.ctxt().outer().expn_info().map_or_else(|| hygiene::default_edition(),
-                                                    |einfo| einfo.edition)
+        self.ctxt().outer_expn_info().map_or_else(|| {
+            Edition::from_session()
+        }, |einfo| einfo.edition)
     }
 
     #[inline]
@@ -377,19 +381,19 @@ pub fn rust_2018(&self) -> bool {
     /// corresponding to the source callsite.
     pub fn source_callee(self) -> Option<ExpnInfo> {
         fn source_callee(info: ExpnInfo) -> ExpnInfo {
-            match info.call_site.ctxt().outer().expn_info() {
+            match info.call_site.ctxt().outer_expn_info() {
                 Some(info) => source_callee(info),
                 None => info,
             }
         }
-        self.ctxt().outer().expn_info().map(source_callee)
+        self.ctxt().outer_expn_info().map(source_callee)
     }
 
     /// Checks if a span is "internal" to a macro in which `#[unstable]`
     /// items can be used (that is, a macro marked with
     /// `#[allow_internal_unstable]`).
     pub fn allows_unstable(&self, feature: Symbol) -> bool {
-        match self.ctxt().outer().expn_info() {
+        match self.ctxt().outer_expn_info() {
             Some(info) => info
                 .allow_internal_unstable
                 .map_or(false, |features| features.iter().any(|&f|
@@ -401,7 +405,7 @@ pub fn allows_unstable(&self, feature: Symbol) -> bool {
 
     /// Checks if this span arises from a compiler desugaring of kind `kind`.
     pub fn is_compiler_desugaring(&self, kind: CompilerDesugaringKind) -> bool {
-        match self.ctxt().outer().expn_info() {
+        match self.ctxt().outer_expn_info() {
             Some(info) => match info.format {
                 ExpnFormat::CompilerDesugaring(k) => k == kind,
                 _ => false,
@@ -413,7 +417,7 @@ pub fn is_compiler_desugaring(&self, kind: CompilerDesugaringKind) -> bool {
     /// Returns the compiler desugaring that created this span, or `None`
     /// if this span is not from a desugaring.
     pub fn compiler_desugaring_kind(&self) -> Option<CompilerDesugaringKind> {
-        match self.ctxt().outer().expn_info() {
+        match self.ctxt().outer_expn_info() {
             Some(info) => match info.format {
                 ExpnFormat::CompilerDesugaring(k) => Some(k),
                 _ => None
@@ -426,7 +430,7 @@ pub fn compiler_desugaring_kind(&self) -> Option<CompilerDesugaringKind> {
     /// can be used without triggering the `unsafe_code` lint
     //  (that is, a macro marked with `#[allow_internal_unsafe]`).
     pub fn allows_unsafe(&self) -> bool {
-        match self.ctxt().outer().expn_info() {
+        match self.ctxt().outer_expn_info() {
             Some(info) => info.allow_internal_unsafe,
             None => false,
         }
@@ -435,7 +439,7 @@ pub fn allows_unsafe(&self) -> bool {
     pub fn macro_backtrace(mut self) -> Vec<MacroBacktrace> {
         let mut prev_span = DUMMY_SP;
         let mut result = vec![];
-        while let Some(info) = self.ctxt().outer().expn_info() {
+        while let Some(info) = self.ctxt().outer_expn_info() {
             // Don't print recursive invocations.
             if !info.call_site.source_equal(&prev_span) {
                 let (pre, post) = match info.format {