From: Mikko Rasa <tdb@tdb.fi>
Date: Thu, 4 Mar 2021 15:57:00 +0000 (+0200)
Subject: Check for function declaration conflicting with something else
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=f2725633d775ef21c3e2cffc2cbf14cdc83e8ca2;p=libs%2Fgl.git

Check for function declaration conflicting with something else

Functions are allowed to have multiple declarations but only one
definition.
---

diff --git a/source/glsl/validate.cpp b/source/glsl/validate.cpp
index 5fd4ebca..f3390048 100644
--- a/source/glsl/validate.cpp
+++ b/source/glsl/validate.cpp
@@ -95,6 +95,10 @@ void DeclarationValidator::visit(InterfaceBlock &iface)
 
 void DeclarationValidator::visit(FunctionDeclaration &func)
 {
+	if(Statement *previous = find_definition(func.name))
+		if(!dynamic_cast<FunctionDeclaration *>(previous))
+			multiple_definition(format("'%s'", func.name), func, *previous);
+
 	if(func.definition==&func)
 		check_definition(func.name, func);
 	TraversingVisitor::visit(func);