Method GetFunctionByDecl

sdk/angelscript/source/as_module.cpp:923–986

interface

// interface
asIScriptFunction *asCModule::GetFunctionByDecl(const char *decl) const
{
	asCBuilder bld(m_engine, const_cast<asCModule*>(this));

	// Don't write parser errors to the message callback
	bld.silent = true;

	asCScriptFunction func(m_engine, const_cast<asCModule*>(this), asFUNC_DUMMY);
	int r = bld.ParseFunctionDeclaration(0, decl, &func, false, 0, 0, m_defaultNamespace);
	if( r < 0 )
	{
		// Invalid declaration
		// TODO: Write error to message stream
		return 0;
	}

	// Use the defaultNamespace implicitly unless an explicit namespace has been provided
	asSNameSpace *ns = func.nameSpace == m_engine->nameSpaces[0] ? m_defaultNamespace : func.nameSpace;

	// Search script functions for matching interface
	while( ns )
	{
		asIScriptFunction *f = 0;
		const asCArray<unsigned int> &idxs = m_globalFunctions.GetIndexes(ns, func.name);
		for( unsigned int n = 0; n < idxs.GetLength(); n++ )
		{
			const asCScriptFunction *funcPtr = m_globalFunctions.Get(idxs[n]);
			if( funcPtr->objectType == 0 &&
				func.returnType                 == funcPtr->returnType &&
				func.parameterTypes.GetLength() == funcPtr->parameterTypes.GetLength()
				)
			{
				bool match = true;
				for( asUINT p = 0; p < func.parameterTypes.GetLength(); ++p )
				{
					if( func.parameterTypes[p] != funcPtr->parameterTypes[p] )
					{
						match = false;
						break;
					}
				}

				if( match )
				{
					if( f == 0 )
						f = const_cast<asCScriptFunction*>(funcPtr);
					else
						// Multiple functions
						return 0;
				}
			}
		}

		if( f )
			return f;
		else
		{
			// Search for matching functions in the parent namespace