From 51a0ffcc0a6bdd205e3979cc147adcf0e1186af4 Mon Sep 17 00:00:00 2001
From: Alon Zakai <alonzakai@gmail.com>
Date: Wed, 17 Feb 2016 14:37:06 -0800
Subject: add wasm-printing.h

---
 test/example/find_div0s.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'test/example/find_div0s.cpp')

diff --git a/test/example/find_div0s.cpp b/test/example/find_div0s.cpp
index cb29043a7..e74d4781f 100644
--- a/test/example/find_div0s.cpp
+++ b/test/example/find_div0s.cpp
@@ -8,6 +8,7 @@
 
 #include <ostream>
 #include <wasm.h>
+#include <wasm-printing.h>
 #include <wasm-s-parser.h>
 
 using namespace wasm;
@@ -34,7 +35,7 @@ int main() {
   SExpressionWasmBuilder builder(module, *root[0], [&]() { abort(); });
 
   // Print it out
-  std::cout << module;
+  printWasm(&module, std::cout);
 
   // Search it for divisions by zero: Walk the module, looking for
   // that operation.
@@ -45,7 +46,8 @@ int main() {
         // Check if the right operand is a constant, and if it is 0
         auto right = curr->right->dyn_cast<Const>();
         if (right && right->value.getInteger() == 0) {
-          std::cout << "We found that " << curr->left << " is divided by zero\n";
+          std::cout << "We found that ";
+          printWasm(curr->left, std::cout) << " is divided by zero\n";
         }
       }
     }
-- 
cgit v1.2.3


From 10b929720a8701ef2a960f5b45e39d7a999cca41 Mon Sep 17 00:00:00 2001
From: Alon Zakai <alonzakai@gmail.com>
Date: Wed, 17 Feb 2016 16:53:14 -0800
Subject: overload wasm printing in std namespace

---
 src/wasm-printing.h         | 12 ++++++++++++
 test/example/find_div0s.cpp |  3 +--
 2 files changed, 13 insertions(+), 2 deletions(-)

(limited to 'test/example/find_div0s.cpp')

diff --git a/src/wasm-printing.h b/src/wasm-printing.h
index d7868d52c..6d8ed7c8a 100644
--- a/src/wasm-printing.h
+++ b/src/wasm-printing.h
@@ -33,5 +33,17 @@ extern std::ostream& printWasm(Expression* expression, std::ostream& o);
 
 }
 
+namespace std {
+
+std::ostream& operator<<(std::ostream& o, wasm::Module* module) {
+  return wasm::printWasm(module, o);
+}
+
+std::ostream& operator<<(std::ostream& o, wasm::Expression* expression) {
+  return wasm::printWasm(expression, o);
+}
+
+}
+
 #endif
 
diff --git a/test/example/find_div0s.cpp b/test/example/find_div0s.cpp
index e74d4781f..dc2872edc 100644
--- a/test/example/find_div0s.cpp
+++ b/test/example/find_div0s.cpp
@@ -46,8 +46,7 @@ int main() {
         // Check if the right operand is a constant, and if it is 0
         auto right = curr->right->dyn_cast<Const>();
         if (right && right->value.getInteger() == 0) {
-          std::cout << "We found that ";
-          printWasm(curr->left, std::cout) << " is divided by zero\n";
+          std::cout << "We found that " << curr->left << " is divided by zero\n";
         }
       }
     }
-- 
cgit v1.2.3