From: qining <qining@google.com>
Date: Fri, 26 Aug 2016 15:54:36 +0000 (-0400)
Subject: Add a method in the types to check whether there is no decoration on a
X-Git-Tag: upstream/2018.6~1096
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ec07a0772409e48e0abde8ded16aaa2bb3b4660d;p=platform%2Fupstream%2FSPIRV-Tools.git

Add a method in the types to check whether there is no decoration on a
type.
---

diff --git a/source/opt/types.h b/source/opt/types.h
index c085b1e..0286d8d 100644
--- a/source/opt/types.h
+++ b/source/opt/types.h
@@ -84,6 +84,11 @@ class Type {
   // Returns a human-readable string to represent this type.
   virtual std::string str() const = 0;
 
+  // Returns true if there is no decoration on this type. For struct types,
+  // returns true only when there is no decoration for both the struct type
+  // and the struct members.
+  virtual bool decoration_empty() const { return decorations_.empty(); }
+
 // A bunch of methods for casting this type to a given type. Returns this if the
 // cast can be done, nullptr otherwise.
 #define DeclareCastMethod(target)                  \
@@ -271,6 +276,9 @@ class Struct : public Type {
 
   bool IsSame(Type* that) const override;
   std::string str() const override;
+  bool decoration_empty() const override {
+    return decorations_.empty() && element_decorations_.empty();
+  }
 
   Struct* AsStruct() override { return this; }
   const Struct* AsStruct() const override { return this; }