1 files changed, 56 insertions, 0 deletions
diff --git a/c_compiler/src/expression.cpp b/c_compiler/src/expression.cpp
index e65d2f7..fe5f1cf 100644
--- a/c_compiler/src/expression.cpp
+++ b/c_compiler/src/expression.cpp
@@ -39,6 +39,12 @@ std::string Expression::id() const
     return "";
 }
 
+TypePtr Expression::getType(const VariableStackBindings &) const
+{
+    // by default return largest size, which is 32 bits
+    return std::make_shared<Int>();
+}
+
 void Expression::linkExpression(Expression *next_expression)
 {
     ExpressionPtr expression_ptr(next_expression);
@@ -80,6 +86,11 @@ void OperationExpression::expressionDepth(unsigned &depth_count) const
 	depth_count = rhs_depth_count;
 }
 
+TypePtr OperationExpression::getType(const VariableStackBindings &bindings) const
+{
+    return lhs_->getType(bindings);
+}
+
 ExpressionPtr OperationExpression::getLhs() const
 {
     return lhs_;
@@ -151,6 +162,11 @@ void PostfixArrayElement::expressionDepth(unsigned &depth_count) const
 	index_expression_->expressionDepth(depth_count);
 }
 
+TypePtr PostfixArrayElement::getType(const VariableStackBindings &bindings) const
+{
+    return postfix_expression_->getType(bindings);
+}
+
 
 // PostfixFunctionCall
 
@@ -212,6 +228,11 @@ void PostfixFunctionCall::expressionDepth(unsigned &depth_count) const
 	argument_expression_list_->expressionDepth(depth_count);
 }
 
+TypePtr PostfixFunctionCall::getType(const VariableStackBindings &) const
+{
+    return std::make_shared<Int>();
+}
+
 
 // Post increment and decrement definition
 
@@ -239,6 +260,11 @@ VariableStackBindings PostfixPostIncDecExpression::printAsm(VariableStackBinding
     return bindings;
 }
 
+TypePtr PostfixPostIncDecExpression::getType(const VariableStackBindings &bindings) const
+{
+    return postfix_expression_->getType(bindings);
+}
+
 
 // Pre increment and decrement implementation
 
@@ -265,6 +291,11 @@ VariableStackBindings UnaryPreIncDecExpression::printAsm(VariableStackBindings b
     return bindings;
 }
 
+TypePtr UnaryPreIncDecExpression::getType(const VariableStackBindings &bindings) const
+{
+    return unary_expression_->getType(bindings);
+}
+
 
 // Operator unary definition
 
@@ -315,6 +346,11 @@ void OperatorUnaryExpression::stackPosition(VariableStackBindings bindings, unsi
     }
 }
 
+TypePtr OperatorUnaryExpression::getType(const VariableStackBindings &bindings) const
+{
+    return cast_expression_->getType(bindings);
+}
+
 
 // CastExpression definition
 
@@ -335,6 +371,11 @@ void CastExpression::expressionDepth(unsigned &depth_count) const
     expression_->expressionDepth(depth_count);
 }
 
+TypePtr CastExpression::getType(const VariableStackBindings &) const
+{
+    return type_;
+}
+
 
 // Additive Expression definition
 
@@ -664,6 +705,11 @@ VariableStackBindings ConditionalExpression::printAsm(VariableStackBindings bind
     return bindings;
 }
 
+TypePtr ConditionalExpression::getType(const VariableStackBindings &bindings) const
+{
+    return std::make_shared<Int>();
+}
+
 
 // Assignment Expression definition
 
@@ -754,6 +800,11 @@ std::string Identifier::id() const
     return id_;
 }
 
+TypePtr Identifier::getType(const VariableStackBindings &bindings) const
+{
+    return bindings.getType(id_);
+}
+
 
 // Constant definition
 
@@ -773,3 +824,8 @@ int Constant::constantFold() const
 {
     return constant_;
 }
+
+TypePtr Constant::getType(const VariableStackBindings &) const
+{
+    return std::make_shared<Int>();
+}