From 9da93885a0237162a4fd6f8d8e408e0aa56ccc2b Mon Sep 17 00:00:00 2001
From: John Hodge <tpg@ucc.asn.au>
Date: Sat, 4 Mar 2017 20:45:51 +0800
Subject: MIR - Debug printing for Statement (incomplete)

---
 src/mir/mir.cpp | 26 ++++++++++++++++++++++++++
 src/mir/mir.hpp |  1 +
 2 files changed, 27 insertions(+)

diff --git a/src/mir/mir.cpp b/src/mir/mir.cpp
index 6ae5808b..30d94a3d 100644
--- a/src/mir/mir.cpp
+++ b/src/mir/mir.cpp
@@ -444,6 +444,32 @@ namespace MIR {
 
         return os;
     }
+    ::std::ostream& operator<<(::std::ostream& os, const Statement& x)
+    {
+        TU_MATCHA( (x), (e),
+        (Assign,
+            os << e.dst << " = " << e.src;
+            ),
+        (Asm,
+            os << "(";
+            for(const auto& spec : e.outputs)
+                os << "\"" << spec.first << "\" : " << spec.second << ", ";
+            os << ") = asm!(\"\", input=( ";
+            for(const auto& spec : e.inputs)
+                os << "\"" << spec.first << "\" : " << spec.second << ", ";
+            os << "), clobbers=[" << e.clobbers << "], flags=[" << e.flags << "])";
+            ),
+        (SetDropFlag,
+            ),
+        (Drop,
+            os << "drop(" << e.slot;
+            if(e.kind == ::MIR::eDropKind::SHALLOW)
+                os << " SHALLOW";
+            os << ")";
+            )
+        )
+        return os;
+    }
 }
 
 ::MIR::LValue MIR::LValue::clone() const
diff --git a/src/mir/mir.hpp b/src/mir/mir.hpp
index aed7e2fc..f31ede8d 100644
--- a/src/mir/mir.hpp
+++ b/src/mir/mir.hpp
@@ -271,6 +271,7 @@ TAGGED_UNION(Statement, Assign,
         unsigned int flag_idx;  // Valid if != ~0u
         })
     );
+extern ::std::ostream& operator<<(::std::ostream& os, const Statement& x);
 
 struct BasicBlock
 {
-- 
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