From ede0bc3f5c7124ef100576ad4b0890c9cd13c79d Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 21 Feb 2021 12:19:52 +0200
Subject: [PATCH] Allow using SL::Formatter on single nodes

This is occasionally useful for debugging.
---
 source/glsl/output.cpp | 4 ++--
 source/glsl/output.h   | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/source/glsl/output.cpp b/source/glsl/output.cpp
index 973ff832..f97b8cdb 100644
--- a/source/glsl/output.cpp
+++ b/source/glsl/output.cpp
@@ -65,7 +65,7 @@ void Formatter::set_source(unsigned index, unsigned line)
 		else
 		{
 			unsigned l = line;
-			if(stage->required_version<Version(3, 30))
+			if(stage && stage->required_version<Version(3, 30))
 				--l;
 			formatted += format("#line %d %d\n", l, index);
 		}
@@ -214,7 +214,7 @@ void Formatter::visit(VariableDeclaration &var)
 	if(!var.interface.empty() && var.interface!=block_interface)
 	{
 		string interface = var.interface;
-		if(stage->required_version<Version(1, 30))
+		if(stage && stage->required_version<Version(1, 30))
 		{
 			if(stage->type==Stage::VERTEX && var.interface=="in")
 				interface = "attribute";
diff --git a/source/glsl/output.h b/source/glsl/output.h
index 5b034202..5f741909 100644
--- a/source/glsl/output.h
+++ b/source/glsl/output.h
@@ -23,6 +23,7 @@ public:
 	Formatter();
 
 	const std::string &apply(Stage &);
+	const std::string &apply(Node &n) { n.visit(*this); return formatted; }
 
 private:
 	void append(const std::string &);
-- 
2.43.0