diff --git a/Changelog.md b/Changelog.md
index 3fa7c9dec..153cb63c7 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -4,6 +4,7 @@ Language Features:
 
 
 Compiler Features:
+ * Static Analyzer: Warn about expressions with custom types when they have no effect.
 
 
 Bugfixes:
diff --git a/libsolidity/analysis/TypeChecker.cpp b/libsolidity/analysis/TypeChecker.cpp
index 8c89f249d..9fb3392b1 100644
--- a/libsolidity/analysis/TypeChecker.cpp
+++ b/libsolidity/analysis/TypeChecker.cpp
@@ -2320,8 +2320,13 @@ bool TypeChecker::visit(Identifier const& _identifier)
 	if (auto variableDeclaration = dynamic_cast<VariableDeclaration const*>(annotation.referencedDeclaration))
 		annotation.isPure = annotation.isConstant = variableDeclaration->isConstant();
 	else if (dynamic_cast<MagicVariableDeclaration const*>(annotation.referencedDeclaration))
+	{
 		if (dynamic_cast<FunctionType const*>(annotation.type.get()))
 			annotation.isPure = true;
+	}
+	else if (dynamic_cast<TypeType const*>(annotation.type.get()))
+		annotation.isPure = true;
+
 
 	// Check for deprecated function names.
 	// The check is done here for the case without an actual function call.
diff --git a/test/libsolidity/syntaxTests/metaTypes/typeOfContract.sol b/test/libsolidity/syntaxTests/metaTypes/typeOfContract.sol
index 036c36e8f..c0d2577e2 100644
--- a/test/libsolidity/syntaxTests/metaTypes/typeOfContract.sol
+++ b/test/libsolidity/syntaxTests/metaTypes/typeOfContract.sol
@@ -4,3 +4,4 @@ contract Test {
     }
 }
 // ----
+// Warning: (78-88): Statement has no effect.
diff --git a/test/libsolidity/syntaxTests/nameAndTypeResolution/001_name_references.sol b/test/libsolidity/syntaxTests/nameAndTypeResolution/001_name_references.sol
index dc304a1dc..ae4671381 100644
--- a/test/libsolidity/syntaxTests/nameAndTypeResolution/001_name_references.sol
+++ b/test/libsolidity/syntaxTests/nameAndTypeResolution/001_name_references.sol
@@ -2,3 +2,5 @@ contract test {
     uint256 variable;
     function f(uint256) public returns (uint out) { f(variable); test; out; }
 }
+// ----
+// Warning: (103-107): Statement has no effect.
diff --git a/test/libsolidity/syntaxTests/nameAndTypeResolution/no_effect_statements.sol b/test/libsolidity/syntaxTests/nameAndTypeResolution/no_effect_statements.sol
new file mode 100644
index 000000000..ea867c10b
--- /dev/null
+++ b/test/libsolidity/syntaxTests/nameAndTypeResolution/no_effect_statements.sol
@@ -0,0 +1,16 @@
+contract test {
+ struct s { uint a; uint b;}
+    function f() pure public returns (byte) {
+		s;
+		s(1,2);
+		s[7];
+		uint;
+		uint[7];
+    }
+}
+// ----
+// Warning: (93-94): Statement has no effect.
+// Warning: (98-104): Statement has no effect.
+// Warning: (108-112): Statement has no effect.
+// Warning: (116-120): Statement has no effect.
+// Warning: (124-131): Statement has no effect.
diff --git a/test/libsolidity/syntaxTests/nameAndTypeResolution/437_warn_unused_function_parameter.sol b/test/libsolidity/syntaxTests/nameAndTypeResolution/warnUnused/function_parameter.sol
similarity index 100%
rename from test/libsolidity/syntaxTests/nameAndTypeResolution/437_warn_unused_function_parameter.sol
rename to test/libsolidity/syntaxTests/nameAndTypeResolution/warnUnused/function_parameter.sol
diff --git a/test/libsolidity/syntaxTests/nameAndTypeResolution/435_warn_unused_local.sol b/test/libsolidity/syntaxTests/nameAndTypeResolution/warnUnused/local.sol
similarity index 100%
rename from test/libsolidity/syntaxTests/nameAndTypeResolution/435_warn_unused_local.sol
rename to test/libsolidity/syntaxTests/nameAndTypeResolution/warnUnused/local.sol
diff --git a/test/libsolidity/syntaxTests/nameAndTypeResolution/436_warn_unused_local_assigned.sol b/test/libsolidity/syntaxTests/nameAndTypeResolution/warnUnused/local_assignment.sol
similarity index 100%
rename from test/libsolidity/syntaxTests/nameAndTypeResolution/436_warn_unused_local_assigned.sol
rename to test/libsolidity/syntaxTests/nameAndTypeResolution/warnUnused/local_assignment.sol
diff --git a/test/libsolidity/syntaxTests/nameAndTypeResolution/439_warn_unused_return_parameter.sol b/test/libsolidity/syntaxTests/nameAndTypeResolution/warnUnused/return_parameter.sol
similarity index 100%
rename from test/libsolidity/syntaxTests/nameAndTypeResolution/439_warn_unused_return_parameter.sol
rename to test/libsolidity/syntaxTests/nameAndTypeResolution/warnUnused/return_parameter.sol