From: Mikko Rasa <tdb@tdb.fi>
Date: Mon, 15 Mar 2021 09:13:36 +0000 (+0200)
Subject: Check that the types of ternary branches exist before accessing them
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=b7f0ed12892dbf640ae944d5a76fb5aa01407ba7;p=libs%2Fgl.git

Check that the types of ternary branches exist before accessing them

This fixes a bug introduced in 3a1fe83 and triggered by 5e4204e.
---

diff --git a/source/glsl/generate.cpp b/source/glsl/generate.cpp
index 6430f9d8..70b8ad18 100644
--- a/source/glsl/generate.cpp
+++ b/source/glsl/generate.cpp
@@ -908,6 +908,9 @@ void ExpressionResolver::visit(TernaryExpression &ternary)
 	{
 		BasicTypeDeclaration *basic_true = dynamic_cast<BasicTypeDeclaration *>(ternary.true_expr->type);
 		BasicTypeDeclaration *basic_false = dynamic_cast<BasicTypeDeclaration *>(ternary.false_expr->type);
+		if(!basic_true || !basic_false)
+			return;
+
 		Compatibility compat = get_compatibility(*basic_true, *basic_false);
 		if(compat==NOT_COMPATIBLE)
 			return;