Method translateArraySubscript

src/GLSLCompiler.cpp:372–428

	}

	void GLSLCompiler::translateArraySubscript(glsl::astArraySubscript *expression) {
		// first push index
		translateExpression(expression->index);

		m_indexDepth++;

		bool isArray = true;
		if (expression->operand->type == glsl::astExpression::kVariableIdentifier) {
			glsl::astVariableIdentifier* varInfo = (glsl::astVariableIdentifier*)expression->operand;

			for (const auto& loc : m_locals[m_currentFunction])
				if (loc == varInfo->variable->name)
					isArray = false; // TODO: after local arrays have been implemented, rewrite this part

			if (isArray) {
				for (const auto& glob : m_globals)
					if (glob.Name == varInfo->variable->name) {
						isArray = glob.IsArray;
						break;
					}
			}

			// TODO: m_indexDetph-arraySize when using an array of matrices, example: mat4 m[4]; m[0][0][0];
			if (m_writeIndexDepth || m_isSet) {
				if (!isArray) // which means it must be an object
					m_gen.Function.PushStack((char)m_indexDepth);//objects require index count
			}
		}

		// then array
		bool temp_isSet = m_isSet, temp_writeIndexDepth = m_writeIndexDepth;
		m_isSet = false;
		m_writeIndexDepth = temp_isSet;
		translateExpression(expression->operand);
		m_writeIndexDepth = false;
		m_isSet = temp_isSet;

		if (expression->operand->type == glsl::astExpression::kVariableIdentifier) {
			if (m_isSet || (temp_writeIndexDepth && !isArray))
				m_gen.Function.SetArrayElement();
			else
				m_gen.Function.GetArrayElement();

			m_indexDepth = 0;


			if (m_isSet || (temp_writeIndexDepth && !isArray)) {
				temp_isSet = m_isSet;
				if (!m_isSet)
					m_isSet = true;
				translateExpression(expression->operand);
				m_isSet = temp_isSet;
			}
		}
		else if (!m_isSet)
			m_gen.Function.GetArrayElement();
	}