translations(rustc_session): migrate TargetDataLayout::parse

beowolx · beowolx · commit 0f06320c2491 · 2022-09-08T08:30:57.000+02:00
diff --git a/compiler/rustc_error_messages/locales/en-US/session.ftl b/compiler/rustc_error_messages/locales/en-US/session.ftl
@@ -40,3 +40,17 @@ session_sanitizer_cfi_enabled = `-Zsanitizer=cfi` requires `-Clto`
 session_unstable_virtual_function_elimination = `-Zvirtual-function-elimination` requires `-Clto`
 
 session_unsupported_dwarf_version = requested DWARF version {$dwarf_version} is greater than 5
+
+session_target_invalid_address_space = invalid address space `{$addr_space}` for `{$cause}` in "data-layout": {$err}
+
+session_target_invalid_bits = invalid {$kind} `{$bit}` for `{$cause}` in "data-layout": {$err}
+
+session_target_missing_alignment = missing alignment for `{$cause}` in "data-layout"
+
+session_target_invalid_alignment = invalid alignment for `{$cause}` in "data-layout": {$err}
+
+session_target_inconsistent_architecture = inconsistent target specification: "data-layout" claims architecture is {$dl}-endian, while "target-endian" is `{$target}`
+
+session_target_inconsistent_pointer_width = inconsistent target specification: "data-layout" claims pointers are {$pointer_size}-bit, while "target-pointer-width" is `{$target}`
+
+session_target_invalid_bits_size = {$err}
diff --git a/compiler/rustc_errors/src/diagnostic.rs b/compiler/rustc_errors/src/diagnostic.rs
@@ -14,6 +14,7 @@ use rustc_target::spec::PanicStrategy;
 use std::borrow::Cow;
 use std::fmt;
 use std::hash::{Hash, Hasher};
+use std::num::ParseIntError;
 use std::path::{Path, PathBuf};
 
 /// Error type for `Diagnostic`'s `suggestions` field, indicating that
@@ -91,6 +92,7 @@ into_diagnostic_arg_using_display!(
     Edition,
     Ident,
     MacroRulesNormalizedIdent,
+    ParseIntError,
 );
 
 impl IntoDiagnosticArg for bool {
diff --git a/compiler/rustc_middle/src/ty/context.rs b/compiler/rustc_middle/src/ty/context.rs
@@ -52,6 +52,7 @@ use rustc_query_system::ich::StableHashingContext;
 use rustc_serialize::opaque::{FileEncodeResult, FileEncoder};
 use rustc_session::config::{CrateType, OutputFilenames};
 use rustc_session::cstore::CrateStoreDyn;
+use rustc_session::errors::TargetDataLayoutParseError;
 use rustc_session::lint::{Level, Lint};
 use rustc_session::Limit;
 use rustc_session::Session;
@@ -1251,7 +1252,7 @@ impl<'tcx> TyCtxt<'tcx> {
         output_filenames: OutputFilenames,
     ) -> GlobalCtxt<'tcx> {
         let data_layout = TargetDataLayout::parse(&s.target).unwrap_or_else(|err| {
-            s.fatal(&err);
+            s.emit_fatal(TargetDataLayoutParseError { err });
         });
         let interners = CtxtInterners::new(arena);
         let common_types = CommonTypes::new(
diff --git a/compiler/rustc_session/src/errors.rs b/compiler/rustc_session/src/errors.rs
@@ -1,10 +1,12 @@
 use std::num::NonZeroU32;
 
 use crate::cgu_reuse_tracker::CguReuse;
+use crate::parse::ParseSess;
 use crate::{self as rustc_session};
-use rustc_errors::MultiSpan;
+use rustc_errors::{fluent, MultiSpan};
 use rustc_macros::SessionDiagnostic;
 use rustc_span::{Span, Symbol};
+use rustc_target::abi::TargetDataLayoutErrors;
 
 #[derive(SessionDiagnostic)]
 #[diag(session::incorrect_cgu_reuse_type)]
@@ -44,10 +46,59 @@ pub struct FeatureDiagnosticHelp {
     pub feature: Symbol,
 }
 
-#[derive(SessionDiagnostic)]
-#[diag(session::target_data_layout_parse_error)]
-pub struct TargetDataLayoutParseError {
-    pub err: String,
+pub struct TargetDataLayoutParseError<'a> {
+    pub err: TargetDataLayoutErrors<'a>,
+}
+
+impl crate::SessionDiagnostic<'_, !> for TargetDataLayoutParseError<'_> {
+    fn into_diagnostic(self, sess: &ParseSess) -> rustc_errors::DiagnosticBuilder<'_, !> {
+        let mut diag;
+        match self.err {
+            TargetDataLayoutErrors::InvalidAddressSpace { addr_space, err, cause } => {
+                diag = sess.struct_fatal(fluent::session::target_invalid_address_space);
+                diag.set_arg("addr_space", addr_space);
+                diag.set_arg("cause", cause);
+                diag.set_arg("err", err);
+                diag
+            }
+            TargetDataLayoutErrors::InvalidBits { kind, bit, cause, err } => {
+                diag = sess.struct_fatal(fluent::session::target_invalid_bits);
+                diag.set_arg("kind", kind);
+                diag.set_arg("bit", bit);
+                diag.set_arg("cause", cause);
+                diag.set_arg("err", err);
+                diag
+            }
+            TargetDataLayoutErrors::MissingAlignment { cause } => {
+                diag = sess.struct_fatal(fluent::session::target_missing_alignment);
+                diag.set_arg("cause", cause);
+                diag
+            }
+            TargetDataLayoutErrors::InvalidAlignment { cause, err } => {
+                diag = sess.struct_fatal(fluent::session::target_invalid_alignment);
+                diag.set_arg("cause", cause);
+                diag.set_arg("err", err);
+                diag
+            }
+            TargetDataLayoutErrors::InconsistentTargetArchitecture { dl, target } => {
+                diag = sess.struct_fatal(fluent::session::target_inconsistent_architecture);
+                diag.set_arg("dl", dl);
+                diag.set_arg("target", target);
+                diag
+            }
+            TargetDataLayoutErrors::InconsistentTargetPointerWidth { pointer_size, target } => {
+                diag = sess.struct_fatal(fluent::session::target_inconsistent_pointer_width);
+                diag.set_arg("pointer_size", pointer_size);
+                diag.set_arg("target", target);
+                diag
+            }
+            TargetDataLayoutErrors::InvalidBitsSize { err } => {
+                diag = sess.struct_fatal(fluent::session::target_invalid_bits_size);
+                diag.set_arg("err", err);
+                diag
+            }
+        }
+    }
 }
 
 #[derive(SessionDiagnostic)]
diff --git a/compiler/rustc_target/src/abi/mod.rs b/compiler/rustc_target/src/abi/mod.rs
@@ -7,7 +7,7 @@ use crate::spec::Target;
 use std::convert::{TryFrom, TryInto};
 use std::fmt;
 use std::iter::Step;
-use std::num::NonZeroUsize;
+use std::num::{NonZeroUsize, ParseIntError};
 use std::ops::{Add, AddAssign, Deref, Mul, RangeInclusive, Sub};
 use std::str::FromStr;
 
@@ -69,34 +69,46 @@ impl Default for TargetDataLayout {
     }
 }
 
+pub enum TargetDataLayoutErrors<'a> {
+    InvalidAddressSpace { addr_space: &'a str, cause: &'a str, err: ParseIntError },
+    InvalidBits { kind: &'a str, bit: &'a str, cause: &'a str, err: ParseIntError },
+    MissingAlignment { cause: &'a str },
+    InvalidAlignment { cause: &'a str, err: String },
+    InconsistentTargetArchitecture { dl: &'a str, target: &'a str },
+    InconsistentTargetPointerWidth { pointer_size: u64, target: u32 },
+    InvalidBitsSize { err: String },
+}
+
 impl TargetDataLayout {
-    pub fn parse(target: &Target) -> Result<TargetDataLayout, String> {
+    pub fn parse<'a>(target: &'a Target) -> Result<TargetDataLayout, TargetDataLayoutErrors<'a>> {
         // Parse an address space index from a string.
-        let parse_address_space = |s: &str, cause: &str| {
+        let parse_address_space = |s: &'a str, cause: &'a str| {
             s.parse::<u32>().map(AddressSpace).map_err(|err| {
-                format!("invalid address space `{}` for `{}` in \"data-layout\": {}", s, cause, err)
+                TargetDataLayoutErrors::InvalidAddressSpace { addr_space: s, cause, err }
             })
         };
 
         // Parse a bit count from a string.
-        let parse_bits = |s: &str, kind: &str, cause: &str| {
-            s.parse::<u64>().map_err(|err| {
-                format!("invalid {} `{}` for `{}` in \"data-layout\": {}", kind, s, cause, err)
+        let parse_bits = |s: &'a str, kind: &'a str, cause: &'a str| {
+            s.parse::<u64>().map_err(|err| TargetDataLayoutErrors::InvalidBits {
+                kind,
+                bit: s,
+                cause,
+                err,
             })
         };
 
         // Parse a size string.
-        let size = |s: &str, cause: &str| parse_bits(s, "size", cause).map(Size::from_bits);
+        let size = |s: &'a str, cause: &'a str| parse_bits(s, "size", cause).map(Size::from_bits);
 
         // Parse an alignment string.
-        let align = |s: &[&str], cause: &str| {
+        let align = |s: &[&'a str], cause: &'a str| {
             if s.is_empty() {
-                return Err(format!("missing alignment for `{}` in \"data-layout\"", cause));
+                return Err(TargetDataLayoutErrors::MissingAlignment { cause });
             }
             let align_from_bits = |bits| {
-                Align::from_bits(bits).map_err(|err| {
-                    format!("invalid alignment for `{}` in \"data-layout\": {}", cause, err)
-                })
+                Align::from_bits(bits)
+                    .map_err(|err| TargetDataLayoutErrors::InvalidAlignment { cause, err })
             };
             let abi = parse_bits(s[0], "alignment", cause)?;
             let pref = s.get(1).map_or(Ok(abi), |pref| parse_bits(pref, "alignment", cause))?;
@@ -158,25 +170,24 @@ impl TargetDataLayout {
 
         // Perform consistency checks against the Target information.
         if dl.endian != target.endian {
-            return Err(format!(
-                "inconsistent target specification: \"data-layout\" claims \
-                 architecture is {}-endian, while \"target-endian\" is `{}`",
-                dl.endian.as_str(),
-                target.endian.as_str(),
-            ));
+            return Err(TargetDataLayoutErrors::InconsistentTargetArchitecture {
+                dl: dl.endian.as_str(),
+                target: target.endian.as_str(),
+            });
         }
 
         let target_pointer_width: u64 = target.pointer_width.into();
         if dl.pointer_size.bits() != target_pointer_width {
-            return Err(format!(
-                "inconsistent target specification: \"data-layout\" claims \
-                 pointers are {}-bit, while \"target-pointer-width\" is `{}`",
-                dl.pointer_size.bits(),
-                target.pointer_width
-            ));
+            return Err(TargetDataLayoutErrors::InconsistentTargetPointerWidth {
+                pointer_size: dl.pointer_size.bits(),
+                target: target.pointer_width,
+            });
         }
 
-        dl.c_enum_min_size = Integer::from_size(Size::from_bits(target.c_enum_min_bits))?;
+        dl.c_enum_min_size = match Integer::from_size(Size::from_bits(target.c_enum_min_bits)) {
+            Ok(bits) => bits,
+            Err(err) => return Err(TargetDataLayoutErrors::InvalidBitsSize { err }),
+        };
 
         Ok(dl)
     }
