From a35d0001124ff68bcec058ad20baf34229c852fd Mon Sep 17 00:00:00 2001
From: TrinityDevelopers <trinitydevelopers4christ@gmail.com>
Date: Tue, 21 Jun 2022 15:39:50 -0500
Subject: [PATCH 1/2] Implement AliasType

---
 src/tpi/data.rs | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/tpi/data.rs b/src/tpi/data.rs
index ed7d987..c6d32ec 100644
--- a/src/tpi/data.rs
+++ b/src/tpi/data.rs
@@ -33,6 +33,7 @@ pub enum TypeData<'t> {
     Enumerate(EnumerateType<'t>),
     Array(ArrayType),
     Union(UnionType<'t>),
+    Alias(AliasType<'t>),
     Bitfield(BitfieldType),
     FieldList(FieldList<'t>),
     ArgumentList(ArgumentList),
@@ -336,6 +337,12 @@ pub(crate) fn parse_type_data<'t>(buf: &mut ParseBuffer<'t>) -> Result<TypeData<
             Ok(TypeData::Union(union))
         }
 
+        // https://github.com/Microsoft/microsoft-pdb/blob/082c5290e5aff028ae84e43affa8be717aa7af73/include/cvinfo.h#L1669-L1673
+        LF_ALIAS | LF_ALIAS_ST => Ok(TypeData::Alias(AliasType {
+            underlying_type: buf.parse()?,
+            name: parse_string(leaf, &mut buf)?,
+        })),
+
         // https://github.com/Microsoft/microsoft-pdb/blob/082c5290e5aff028ae84e43affa8be717aa7af73/include/cvinfo.h#L2164-L2170
         LF_BITFIELD => Ok(TypeData::Bitfield(BitfieldType {
             underlying_type: buf.parse()?,
@@ -1023,6 +1030,13 @@ pub struct UnionType<'t> {
     pub unique_name: Option<RawString<'t>>,
 }
 
+/// The information parsed from a type record with kind `LF_ALIAS` or `LF_ALIAS_ST`.
+#[derive(Debug, Clone, PartialEq, Eq)]
+pub struct AliasType<'t> {
+    pub underlying_type: TypeIndex,
+    pub name: RawString<'t>,
+}
+
 /// The information parsed from a type record with kind `LF_BITFIELD`.
 #[derive(Debug, Copy, Clone, PartialEq, Eq)]
 pub struct BitfieldType {

From a331c23c1e195ba87740a825a122b40b1866abce Mon Sep 17 00:00:00 2001
From: TrinityDevelopers <trinitydevelopers4christ@gmail.com>
Date: Thu, 23 Jun 2022 09:25:03 -0500
Subject: [PATCH 2/2] Add Alias to TypeData::name

+ fix typo
---
 src/tpi/data.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/tpi/data.rs b/src/tpi/data.rs
index c6d32ec..f4e92ab 100644
--- a/src/tpi/data.rs
+++ b/src/tpi/data.rs
@@ -51,7 +51,8 @@ impl<'t> TypeData<'t> {
             | Self::Nested(NestedType { ref name, .. })
             | Self::Enumeration(EnumerationType { ref name, .. })
             | Self::Enumerate(EnumerateType { ref name, .. })
-            | Self::Union(UnionType { ref name, .. }) => name,
+            | Self::Union(UnionType { ref name, .. })
+            | Self::Alias(AliasType { ref name, .. }) => name,
             _ => return None,
         };
 
@@ -340,7 +341,7 @@ pub(crate) fn parse_type_data<'t>(buf: &mut ParseBuffer<'t>) -> Result<TypeData<
         // https://github.com/Microsoft/microsoft-pdb/blob/082c5290e5aff028ae84e43affa8be717aa7af73/include/cvinfo.h#L1669-L1673
         LF_ALIAS | LF_ALIAS_ST => Ok(TypeData::Alias(AliasType {
             underlying_type: buf.parse()?,
-            name: parse_string(leaf, &mut buf)?,
+            name: parse_string(leaf, buf)?,
         })),
 
         // https://github.com/Microsoft/microsoft-pdb/blob/082c5290e5aff028ae84e43affa8be717aa7af73/include/cvinfo.h#L2164-L2170