Function PatchGlobalsInFunctions

shadercompiler/EffectCompilerMetal.cpp:380–423

}

void PatchGlobalsInFunctions( std::map<Symbol*, ASTNode*>& functions, Symbol* typeSymbol, const InlineString& globalsName, const std::set<Symbol*>& structMembers )
{
	assert( !structMembers.empty() );

	std::map<Symbol*, ASTNode*> functionsWithGlobals;
	std::map<Symbol*, ASTNode*> functionsWithoutGlobals;

	SearchFunctionsForGlobals( structMembers, functions, functionsWithGlobals, functionsWithoutGlobals );

	ScannerToken token = {};
	token.type = OP_INOUT;

	for( auto& it : functionsWithGlobals )
	{
		ASTNode* node = it.second;
		assert( node && node->GetNodeType() == NT_FUNCTION_DEFINITION );

		ASTNode* header = node->GetChild( 0 );
		assert( header->GetNodeType() == NT_FUNCTION_HEADER );

		ASTNode* body = node->GetChild( 1 );
		assert( body->GetNodeType() == NT_BLOCK );

		Symbol* symbol = node->GetScope()->AddSymbol( globalsName, DISALOW_OVERRIDES );
		symbol->type.FromSymbol( typeSymbol );
		symbol->addressSpace = AddressSpace::Constant;
		symbol->registerSpecifier = typeSymbol->registerSpecifier;

		token.fileLocation = header->GetLocation();

		Type type;
		type.FromSymbol( typeSymbol );

		ASTNode* globalsParam = new ASTNode( NT_FUNCTION_PARAMETER, header->GetLocation(), header->GetScope(), &token );
		globalsParam->SetType( type );
		globalsParam->SetSymbol( symbol );

		header->InsertChild( 0, globalsParam );

		AddFunctionArgument( functionsWithGlobals, header->GetSymbol(), symbol );

		AddStructDotPrefix( body, structMembers, symbol );
	}
}

bool IsGlobalVarUsed( const std::map<Symbol*, ASTNode*>& functions, const InlineString& name, ASTNode* node )
{