From 1005b1267f70a5a7cf7a8774af6c12d813464720 Mon Sep 17 00:00:00 2001
From: Alon Zakai <alonzakai@gmail.com>
Date: Fri, 20 Oct 2017 19:38:31 -0700
Subject: Emit binary function index in comment in text format, for convenience
 (#1232)

---
 src/passes/Print.cpp | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'src/passes/Print.cpp')

diff --git a/src/passes/Print.cpp b/src/passes/Print.cpp
index 6d40034fc..beae693d9 100644
--- a/src/passes/Print.cpp
+++ b/src/passes/Print.cpp
@@ -22,6 +22,7 @@
 #include <wasm-printing.h>
 #include <pass.h>
 #include <pretty_printing.h>
+#include <ast/module-utils.h>
 
 namespace wasm {
 
@@ -47,6 +48,8 @@ struct PrintSExpression : public Visitor<PrintSExpression> {
   Function* currFunction = nullptr;
   Function::DebugLocation lastPrintedLocation;
 
+  std::unordered_map<Name, Index> functionIndexes;
+
   PrintSExpression(std::ostream& o) : o(o) {
     setMinify(false);
     if (!full) full = isFullForced();
@@ -686,6 +689,14 @@ struct PrintSExpression : public Visitor<PrintSExpression> {
     lastPrintedLocation = { 0, 0, 0 };
     printOpening(o, "func ", true);
     printName(curr->name);
+    if (currModule && !minify) {
+      // emit the function index in a comment
+      if (functionIndexes.empty()) {
+        ModuleUtils::BinaryIndexes indexes(*currModule);
+        functionIndexes = std::move(indexes.functionIndexes);
+      }
+      o << " (; " << functionIndexes[curr->name] << " ;)";
+    }
     if (curr->type.is()) {
       o << maybeSpace << "(type " << curr->type << ')';
     }
-- 
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