def convert_name_reference(self, variable):
        """
        Converts a single variable to nest processable format.
        :param variable: a single variable.
        :type variable: ASTVariable
        :return: a nest processable format.
        :rtype: str
        """
        from pynestml.codegeneration.nest_printer import NestPrinter
        assert (variable is not None and isinstance(variable, ASTVariable)), \
            '(PyNestML.CodeGeneration.NestReferenceConverter) No or wrong type of uses-gsl provided (%s)!' % type(
                variable)
        variable_name = NestNamesConverter.convert_to_cpp_name(
            variable.get_complete_name())

        if variable_name == PredefinedVariables.E_CONSTANT:
            return 'numerics::e'
        else:
            symbol = variable.get_scope().resolve_to_symbol(
                variable_name, SymbolKind.VARIABLE)
            if symbol is None:
                # test if variable name can be resolved to a type
                if PredefinedUnits.is_unit(variable.get_complete_name()):
                    return str(
                        UnitConverter.get_factor(
                            PredefinedUnits.get_unit(
                                variable.get_complete_name()).get_unit()))

                code, message = Messages.get_could_not_resolve(variable_name)
                Logger.log_message(
                    log_level=LoggingLevel.ERROR,
                    code=code,
                    message=message,
                    error_position=variable.get_source_position())
                return ''
            else:
                if symbol.is_local():
                    return variable_name + (
                        '[i]' if symbol.has_vector_parameter() else '')
                elif symbol.is_buffer():
                    return NestPrinter.print_origin(symbol) + NestNamesConverter.buffer_value(symbol) \
                           + ('[i]' if symbol.has_vector_parameter() else '')
                else:
                    if symbol.is_function:
                        return 'get_' + variable_name + '()' + (
                            '[i]' if symbol.has_vector_parameter() else '')
                    else:
                        if symbol.is_init_values():
                            temp = NestPrinter.print_origin(symbol)
                            if self.uses_gsl:
                                temp += GSLNamesConverter.name(symbol)
                            else:
                                temp += NestNamesConverter.name(symbol)
                            temp += ('[i]'
                                     if symbol.has_vector_parameter() else '')
                            return temp
                        else:
                            return NestPrinter.print_origin(symbol) + \
                                   NestNamesConverter.name(symbol) + \
                                   ('[i]' if symbol.has_vector_parameter() else '')
    def visit_simple_expression(self, node):
        """
        Visits a single function call

        :param node: a simple expression
        """
        assert isinstance(node, ASTSimpleExpression), \
            '(PyNestML.Visitor.FunctionCallVisitor) No or wrong type of simple expression provided (%s)!' % tuple(node)
        assert (node.get_scope() is not None), \
            "(PyNestML.Visitor.FunctionCallVisitor) No scope found, run symboltable creator!"
        if node.get_function_call() is None:
            return
        function_name = node.get_function_call().get_name()
        if function_name == PredefinedFunctions.TIME_RESOLUTION:
            _node = node
            while _node:
                _node = self.neuron.get_parent(_node)

                if isinstance(_node, ASTEquationsBlock) \
                        or isinstance(_node, ASTFunction):
                    code, message = Messages.get_could_not_resolve(
                        function_name)
                    Logger.log_message(
                        code=code,
                        message=message,
                        error_position=node.get_source_position(),
                        log_level=LoggingLevel.ERROR)
Ejemplo n.º 3
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    def convert_name_reference(self,
                               ast_variable: ASTVariable,
                               prefix: str = ''):
        """
        Converts a single name reference to a gsl processable format.
        :param ast_variable: a single variable
        :type ast_variable: ASTVariable
        :return: a gsl processable format of the variable
        :rtype: str
        """
        variable_name = NestNamesConverter.convert_to_cpp_name(
            ast_variable.get_name())

        if variable_name == PredefinedVariables.E_CONSTANT:
            return 'numerics::e'

        symbol = ast_variable.get_scope().resolve_to_symbol(
            ast_variable.get_complete_name(), SymbolKind.VARIABLE)
        if symbol is None:
            # test if variable name can be resolved to a type
            if PredefinedUnits.is_unit(ast_variable.get_complete_name()):
                return str(
                    UnitConverter.get_factor(
                        PredefinedUnits.get_unit(
                            ast_variable.get_complete_name()).get_unit()))

            code, message = Messages.get_could_not_resolve(variable_name)
            Logger.log_message(
                log_level=LoggingLevel.ERROR,
                code=code,
                message=message,
                error_position=ast_variable.get_source_position())
            return ''

        if symbol.is_init_values():
            return GSLNamesConverter.name(symbol)

        if symbol.is_buffer():
            if isinstance(symbol.get_type_symbol(), UnitTypeSymbol):
                units_conversion_factor = UnitConverter.get_factor(
                    symbol.get_type_symbol().unit.unit)
            else:
                units_conversion_factor = 1
            s = ""
            if not units_conversion_factor == 1:
                s += "(" + str(units_conversion_factor) + " * "
            s += prefix + 'B_.' + NestNamesConverter.buffer_value(symbol)
            if symbol.has_vector_parameter():
                s += '[i]'
            if not units_conversion_factor == 1:
                s += ")"
            return s

        if symbol.is_local() or symbol.is_function:
            return variable_name

        if symbol.has_vector_parameter():
            return prefix + 'get_' + variable_name + '()[i]'

        return prefix + 'get_' + variable_name + '()'
Ejemplo n.º 4
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    def get_variables(cls, ast_declaration):
        """
        For a given meta_model declaration it returns a list of all corresponding variable symbols.
        :param ast_declaration: a single meta_model declaration.
        :type ast_declaration: ASTDeclaration
        :return: a list of all corresponding variable symbols.
        :rtype: list(VariableSymbol)
        """

        assert isinstance(ast_declaration, ASTDeclaration), \
            '(PyNestML.CodeGeneration.DeclarationsHelper) No or wrong type of declaration provided (%s)!' % type(
                ast_declaration)
        ret = list()
        for var in ast_declaration.get_variables():
            symbol = ast_declaration.get_scope().resolve_to_symbol(
                var.get_complete_name(), SymbolKind.VARIABLE)
            if symbol is not None:
                ret.append(symbol)
            else:
                code, message = Messages.get_could_not_resolve(
                    var.get_complete_name())
                Logger.log_message(
                    code=code,
                    message=message,
                    error_position=ast_declaration.get_source_position(),
                    log_level=LoggingLevel.ERROR)
            return ret
Ejemplo n.º 5
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    def visit_simple_expression(self, node):
        """
        Visits a single function call as stored in a simple expression and checks to see whether any calls are made to generate a random number. If so, set a flag so that the necessary initialisers can be called at the right time in the generated code.
        """
        assert isinstance(node, ASTSimpleExpression), \
            '(PyNestML.Visitor.FunctionCallVisitor) No or wrong type of simple expression provided (%s)!' % tuple(node)
        assert (node.get_scope() is not None), \
            "(PyNestML.Visitor.FunctionCallVisitor) No scope found, run symboltable creator!"
        scope = node.get_scope()
        if node.get_function_call() is None:
            return
        function_name = node.get_function_call().get_name()
        method_symbol = scope.resolve_to_symbol(function_name, SymbolKind.FUNCTION)

        # check if this function exists
        if method_symbol is None:
            code, message = Messages.get_could_not_resolve(function_name)
            Logger.log_message(code=code, message=message, error_position=node.get_source_position(),
                               log_level=LoggingLevel.ERROR)
            node.type = ErrorTypeSymbol()
            return

        if function_name == PredefinedFunctions.RANDOM_NORMAL:
            self._norm_rng_is_used = True
            return
Ejemplo n.º 6
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    def visit_simple_expression(self, node):
        """
        Visits a single function call as stored in a simple expression and derives the correct type of all its
        parameters. :param node: a simple expression :type node: ASTSimpleExpression :rtype void
        """
        assert isinstance(node, ASTSimpleExpression), \
            '(PyNestML.Visitor.FunctionCallVisitor) No or wrong type of simple expression provided (%s)!' % tuple(node)
        assert (node.get_scope() is not None), \
            "(PyNestML.Visitor.FunctionCallVisitor) No scope found, run symboltable creator!"
        scope = node.get_scope()
        function_name = node.get_function_call().get_name()
        method_symbol = scope.resolve_to_symbol(function_name,
                                                SymbolKind.FUNCTION)
        # check if this function exists
        if method_symbol is None:
            code, message = Messages.get_could_not_resolve(function_name)
            Logger.log_message(code=code,
                               message=message,
                               error_position=node.get_source_position(),
                               log_level=LoggingLevel.ERROR)
            node.type = ErrorTypeSymbol()
            return
        return_type = method_symbol.get_return_type()
        return_type.referenced_object = node

        # convolve symbol does not have a return type set.
        # returns whatever type the second parameter is.
        if function_name == PredefinedFunctions.CONVOLVE:
            # Deviations from the assumptions made here are handled in the convolveCoco
            buffer_parameter = node.get_function_call().get_args()[1]

            if buffer_parameter.getVariable() is not None:
                buffer_name = buffer_parameter.getVariable().getName()
                buffer_symbol_resolve = scope.resolve_to_symbol(
                    buffer_name, SymbolKind.VARIABLE)
                if buffer_symbol_resolve is not None:
                    node.type = buffer_symbol_resolve.getTypeSymbol()
                    return

            # getting here means there is an error with the parameters to convolve
            code, message = Messages.get_convolve_needs_buffer_parameter()
            Logger.log_message(code=code,
                               message=message,
                               error_position=node.get_source_position(),
                               log_level=LoggingLevel.ERROR)
            node.type = ErrorTypeSymbol()
            return

        if isinstance(method_symbol.get_return_type(), VoidTypeSymbol):
            # todo by KP: the error message is not used here, @ptraeder fix this
            # error_msg = ErrorStrings.message_void_function_on_rhs(self, function_name, node.get_source_position())
            node.type = ErrorTypeSymbol()
            return

        # if nothing special is handled, just get the expression type from the return type of the function
        node.type = return_type
    def visit_simple_expression(self, node):
        """
        Visits a single function call as stored in a simple expression and derives the correct type of all its
        parameters. :param node: a simple expression :type node: ASTSimpleExpression :rtype void
        """
        assert isinstance(node, ASTSimpleExpression), \
            '(PyNestML.Visitor.FunctionCallVisitor) No or wrong type of simple expression provided (%s)!' % tuple(node)
        assert (node.get_scope() is not None), \
            "(PyNestML.Visitor.FunctionCallVisitor) No scope found, run symboltable creator!"
        scope = node.get_scope()
        function_name = node.get_function_call().get_name()
        method_symbol = scope.resolve_to_symbol(function_name, SymbolKind.FUNCTION)
        # check if this function exists
        if method_symbol is None:
            code, message = Messages.get_could_not_resolve(function_name)
            Logger.log_message(code=code, message=message, error_position=node.get_source_position(),
                               log_level=LoggingLevel.ERROR)
            node.type = ErrorTypeSymbol()
            return
        return_type = method_symbol.get_return_type()
        return_type.referenced_object = node

        # convolve symbol does not have a return type set.
        # returns whatever type the second parameter is.
        if function_name == PredefinedFunctions.CONVOLVE:
            # Deviations from the assumptions made here are handled in the convolveCoco
            buffer_parameter = node.get_function_call().get_args()[1]

            if buffer_parameter.get_variable() is not None:
                buffer_name = buffer_parameter.get_variable().get_name()
                buffer_symbol_resolve = scope.resolve_to_symbol(buffer_name, SymbolKind.VARIABLE)
                if buffer_symbol_resolve is not None:
                    node.type = buffer_symbol_resolve.get_type_symbol()
                    return

            # getting here means there is an error with the parameters to convolve
            code, message = Messages.get_convolve_needs_buffer_parameter()
            Logger.log_message(code=code, message=message, error_position=node.get_source_position(),
                               log_level=LoggingLevel.ERROR)
            node.type = ErrorTypeSymbol()
            return

        if isinstance(method_symbol.get_return_type(), VoidTypeSymbol):
            # todo by KP: the error message is not used here, @ptraeder fix this
            # error_msg = ErrorStrings.message_void_function_on_rhs(self, function_name, node.get_source_position())
            node.type = ErrorTypeSymbol()
            return

        # if nothing special is handled, just get the expression type from the return type of the function
        node.type = return_type
Ejemplo n.º 8
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    def convert_name_reference(self, variable):
        """
        Converts a single variable to nest processable format.
        :param variable: a single variable.
        :type variable: ASTVariable
        :return: a nest processable format.
        :rtype: str
        """
        from pynestml.codegeneration.nest_printer import NestPrinter
        assert (variable is not None and isinstance(variable, ASTVariable)), \
            '(PyNestML.CodeGeneration.NestReferenceConverter) No or wrong type of uses-gsl provided (%s)!' % type(
                variable)
        variable_name = NestNamesConverter.convert_to_cpp_name(variable.get_complete_name())

        if PredefinedUnits.is_unit(variable.get_complete_name()):
            return str(
                UnitConverter.get_factor(PredefinedUnits.get_unit(variable.get_complete_name()).get_unit()))
        if variable_name == PredefinedVariables.E_CONSTANT:
            return 'numerics::e'
        else:
            symbol = variable.get_scope().resolve_to_symbol(variable_name, SymbolKind.VARIABLE)
            if symbol is None:
                # this should actually not happen, but an error message is better than an exception
                code, message = Messages.get_could_not_resolve(variable_name)
                Logger.log_message(log_level=LoggingLevel.ERROR, code=code, message=message,
                                   error_position=variable.get_source_position())
                return ''
            else:
                if symbol.is_local():
                    return variable_name + ('[i]' if symbol.has_vector_parameter() else '')
                elif symbol.is_buffer():
                    return NestPrinter.print_origin(symbol) + NestNamesConverter.buffer_value(symbol) \
                           + ('[i]' if symbol.has_vector_parameter() else '')
                else:
                    if symbol.is_function:
                        return 'get_' + variable_name + '()' + ('[i]' if symbol.has_vector_parameter() else '')
                    else:
                        if symbol.is_init_values():
                            temp = NestPrinter.print_origin(symbol)
                            if self.uses_gsl:
                                temp += GSLNamesConverter.name(symbol)
                            else:
                                temp += NestNamesConverter.name(symbol)
                            temp += ('[i]' if symbol.has_vector_parameter() else '')
                            return temp
                        else:
                            return NestPrinter.print_origin(symbol) + \
                                   NestNamesConverter.name(symbol) + \
                                   ('[i]' if symbol.has_vector_parameter() else '')
    def visit_simple_expression(self, node):
        """
        Visits a single function call as stored in a simple expression and, if template types are used for function parameters, checks if all actual parameter types are mutually consistent.

        :param node: a simple expression
        :type node: ASTSimpleExpression
        :rtype None:
        """
        assert isinstance(node, ASTSimpleExpression), \
            '(PyNestML.Visitor.FunctionCallVisitor) No or wrong type of simple expression provided (%s)!' % tuple(node)
        assert (node.get_scope() is not None), \
            "(PyNestML.Visitor.FunctionCallVisitor) No scope found, run symboltable creator!"
        scope = node.get_scope()
        if node.get_function_call() is None:
            return
        function_name = node.get_function_call().get_name()
        method_symbol = scope.resolve_to_symbol(function_name, SymbolKind.FUNCTION)
        # check if this function exists
        if method_symbol is None:
            code, message = Messages.get_could_not_resolve(function_name)
            Logger.log_message(code=code, message=message, error_position=node.get_source_position(),
                               log_level=LoggingLevel.ERROR)
            self._failure_occurred = True
            return
        return_type = method_symbol.get_return_type()

        template_symbol_to_actual_symbol = {}
        template_symbol_to_parameter_indices = {}
        # loop over all function parameters
        for arg_idx, arg_type in enumerate(method_symbol.param_types):
            if isinstance(arg_type, TemplateTypeSymbol):
                actual_symbol = node.get_function_call().get_args()[arg_idx].type
                if arg_type._i in template_symbol_to_actual_symbol.keys():
                    if (not template_symbol_to_actual_symbol[arg_type._i].differs_only_in_magnitude(actual_symbol)) \
                            and (not template_symbol_to_actual_symbol[arg_type._i].is_castable_to(actual_symbol)):
                        # if the one cannot be cast into the other
                        code, message = Messages.templated_arg_types_inconsistent(function_name, arg_idx, template_symbol_to_parameter_indices[arg_type._i], failing_arg_type_str=actual_symbol.print_nestml_type(
                        ), other_type_str=template_symbol_to_actual_symbol[arg_type._i].print_nestml_type())
                        Logger.log_message(code=code, message=message,
                                           error_position=node.get_source_position(), log_level=LoggingLevel.ERROR)
                        self._failure_occurred = True
                        return

                    template_symbol_to_parameter_indices[arg_type._i] += [arg_idx]

                else:
                    template_symbol_to_actual_symbol[arg_type._i] = actual_symbol
                    template_symbol_to_parameter_indices[arg_type._i] = [arg_idx]
Ejemplo n.º 10
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 def get_multiple_receptors(self) -> List[VariableSymbol]:
     """
     Returns a list of all spike input ports which are defined as both inhibitory *and* excitatory at the same time.
     :return: a list of spike input port variable symbols
     """
     ret = list()
     for port in self.get_spike_input_ports():
         if port.is_excitatory() and port.is_inhibitory():
             if port is not None:
                 ret.append(port)
             else:
                 code, message = Messages.get_could_not_resolve(port.get_symbol_name())
                 Logger.log_message(
                     message=message,
                     code=code,
                     error_position=port.get_source_position(),
                     log_level=LoggingLevel.ERROR)
     return ret
Ejemplo n.º 11
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 def get_multiple_receptors(self):
     """
     Returns a list of all spike buffers which are defined as inhibitory and excitatory.
     :return: a list of spike buffers variable symbols
     :rtype: list(VariableSymbol)
     """
     ret = list()
     for iBuffer in self.get_spike_buffers():
         if iBuffer.is_excitatory() and iBuffer.is_inhibitory():
             if iBuffer is not None:
                 ret.append(iBuffer)
             else:
                 code, message = Messages.get_could_not_resolve(iBuffer.get_symbol_name())
                 Logger.log_message(
                     message=message,
                     code=code,
                     error_position=iBuffer.get_source_position(),
                     log_level=LoggingLevel.ERROR)
     return ret
Ejemplo n.º 12
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    def get_variables(cls, ast_declaration):
        """
        For a given meta_model declaration it returns a list of all corresponding variable symbols.
        :param ast_declaration: a single meta_model declaration.
        :type ast_declaration: ASTDeclaration
        :return: a list of all corresponding variable symbols.
        :rtype: list(VariableSymbol)
        """

        assert isinstance(ast_declaration, ASTDeclaration), \
            '(PyNestML.CodeGeneration.DeclarationsHelper) No or wrong type of declaration provided (%s)!' % type(
                ast_declaration)
        ret = list()
        for var in ast_declaration.get_variables():
            symbol = ast_declaration.get_scope().resolve_to_symbol(var.get_complete_name(), SymbolKind.VARIABLE)
            if symbol is not None:
                ret.append(symbol)
            else:
                code, message = Messages.get_could_not_resolve(var.get_complete_name())
                Logger.log_message(code=code, message=message,
                                   error_position=ast_declaration.get_source_position(), log_level=LoggingLevel.ERROR)
            return ret
Ejemplo n.º 13
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    def convert_name_reference(self, variable: ASTVariable, prefix='') -> str:
        """
        Converts a single variable to nest processable format.
        :param variable: a single variable.
        :type variable: ASTVariable
        :return: a nest processable format.
        """
        from pynestml.codegeneration.nest_printer import NestPrinter

        if isinstance(variable, ASTExternalVariable):
            _name = str(variable)
            if variable.get_alternate_name():
                # the disadvantage of this approach is that the time the value is to be obtained is not explicitly specified, so we will actually get the value at the end of the min_delay timestep
                return "((POST_NEURON_TYPE*)(__target))->get_" + variable.get_alternate_name(
                ) + "()"

            return "((POST_NEURON_TYPE*)(__target))->get_" + _name + "(_tr_t)"

        if variable.get_name() == PredefinedVariables.E_CONSTANT:
            return 'numerics::e'

        symbol = variable.get_scope().resolve_to_symbol(
            variable.get_complete_name(), SymbolKind.VARIABLE)
        if symbol is None:
            # test if variable name can be resolved to a type
            if PredefinedUnits.is_unit(variable.get_complete_name()):
                return str(
                    UnitConverter.get_factor(
                        PredefinedUnits.get_unit(
                            variable.get_complete_name()).get_unit()))

            code, message = Messages.get_could_not_resolve(variable.get_name())
            Logger.log_message(log_level=LoggingLevel.ERROR,
                               code=code,
                               message=message,
                               error_position=variable.get_source_position())
            return ''

        if symbol.is_local():
            return variable.get_name() + (
                '[' + variable.get_vector_parameter() +
                ']' if symbol.has_vector_parameter() else '')
        if symbol.is_buffer():
            if isinstance(symbol.get_type_symbol(), UnitTypeSymbol):
                units_conversion_factor = UnitConverter.get_factor(
                    symbol.get_type_symbol().unit.unit)
            else:
                units_conversion_factor = 1
            s = ""
            if not units_conversion_factor == 1:
                s += "(" + str(units_conversion_factor) + " * "
            s += NestPrinter.print_origin(
                symbol,
                prefix=prefix) + NestNamesConverter.buffer_value(symbol)
            if symbol.has_vector_parameter():
                s += '[' + variable.get_vector_parameter() + ']'
            if not units_conversion_factor == 1:
                s += ")"
            return s

        if symbol.is_inline_expression:
            return 'get_' + variable.get_name() + '()' + (
                '[i]' if symbol.has_vector_parameter() else '')

        if symbol.is_kernel():
            assert False, "NEST reference converter cannot print kernel; kernel should have been converted during code generation"

        if symbol.is_state():
            temp = ""
            temp += NestNamesConverter.getter(symbol) + "()"
            temp += ('[' + variable.get_vector_parameter() +
                     ']' if symbol.has_vector_parameter() else '')
            return temp

        variable_name = NestNamesConverter.convert_to_cpp_name(
            variable.get_complete_name())
        if symbol.is_local():
            return variable_name + ('[i]'
                                    if symbol.has_vector_parameter() else '')

        if symbol.is_inline_expression:
            return 'get_' + variable_name + '()' + (
                '[i]' if symbol.has_vector_parameter() else '')

        return NestPrinter.print_origin(symbol, prefix=prefix) + \
            NestNamesConverter.name(symbol) + \
            ('[' + variable.get_vector_parameter() + ']' if symbol.has_vector_parameter() else '')
Ejemplo n.º 14
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    def convert_name_reference(self, variable, prefix='', with_origins = True):
        """
        Converts a single variable to nest processable format.
        :param variable: a single variable.
        :type variable: ASTVariable
        :return: a nest processable format.
        :rtype: str
        """
        from pynestml.codegeneration.nest_printer import NestPrinter
        assert (variable is not None and isinstance(variable, ASTVariable)), \
            '(PyNestML.CodeGeneration.NestReferenceConverter) No or wrong type of uses-gsl provided (%s)!' % type(
                variable)
        variable_name = NestNamesConverter.convert_to_cpp_name(variable.get_complete_name())

        if variable_name == PredefinedVariables.E_CONSTANT:
            return 'numerics::e'

        assert variable.get_scope() is not None, "Undeclared variable: " + variable.get_complete_name()

        symbol = variable.get_scope().resolve_to_symbol(variable_name, SymbolKind.VARIABLE)
        if symbol is None:
            # test if variable name can be resolved to a type
            if PredefinedUnits.is_unit(variable.get_complete_name()):
                return str(UnitConverter.get_factor(PredefinedUnits.get_unit(variable.get_complete_name()).get_unit()))

            code, message = Messages.get_could_not_resolve(variable_name)
            Logger.log_message(log_level=LoggingLevel.ERROR, code=code, message=message,
                               error_position=variable.get_source_position())
            return ''

        if symbol.is_local():
            return variable_name + ('[i]' if symbol.has_vector_parameter() else '')

        if symbol.is_buffer():
            if isinstance(symbol.get_type_symbol(), UnitTypeSymbol):
                units_conversion_factor = UnitConverter.get_factor(symbol.get_type_symbol().unit.unit)
            else:
                units_conversion_factor = 1
            s = ""
            if not units_conversion_factor == 1:
                s += "(" + str(units_conversion_factor) + " * "
            s += NestPrinter.print_origin(symbol, prefix=prefix) if with_origins else ''
            s += NestNamesConverter.buffer_value(symbol)
            if symbol.has_vector_parameter():
                s += '[i]'
            if not units_conversion_factor == 1:
                s += ")"
            return s

        if symbol.is_inline_expression:
            return 'get_' + variable_name + '()' + ('[i]' if symbol.has_vector_parameter() else '')

        if symbol.is_kernel():
            assert False, "NEST reference converter cannot print kernel; kernel should have been converted during code generation"

        if symbol.is_state():
            temp = NestPrinter.print_origin(symbol, prefix=prefix) if with_origins else ''
            if self.uses_gsl:
                temp += GSLNamesConverter.name(symbol)
            else:
                temp += NestNamesConverter.name(symbol)
            temp += ('[i]' if symbol.has_vector_parameter() else '')
            return temp

        return (NestPrinter.print_origin(symbol, prefix=prefix) if with_origins else '') + \
            NestNamesConverter.name(symbol) + \
            ('[i]' if symbol.has_vector_parameter() else '')
Ejemplo n.º 15
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    def visit_simple_expression(self, node):
        """
        Visits a single function call as stored in a simple expression and derives the correct type of all its
        parameters. :param node: a simple expression :type node: ASTSimpleExpression :rtype void
        """
        assert isinstance(node, ASTSimpleExpression), \
            '(PyNestML.Visitor.FunctionCallVisitor) No or wrong type of simple expression provided (%s)!' % tuple(node)
        assert (node.get_scope() is not None), \
            "(PyNestML.Visitor.FunctionCallVisitor) No scope found, run symboltable creator!"
        scope = node.get_scope()
        function_name = node.get_function_call().get_name()
        method_symbol = scope.resolve_to_symbol(function_name, SymbolKind.FUNCTION)
        # check if this function exists
        if method_symbol is None:
            code, message = Messages.get_could_not_resolve(function_name)
            Logger.log_message(code=code, message=message, error_position=node.get_source_position(),
                               log_level=LoggingLevel.ERROR)
            node.type = ErrorTypeSymbol()
            return
        return_type = method_symbol.get_return_type()

        if isinstance(return_type, TemplateTypeSymbol):
            for i, arg_type in enumerate(method_symbol.param_types):
                if arg_type == return_type:
                    return_type = node.get_function_call().get_args()[i].type
                    break

            if isinstance(return_type, TemplateTypeSymbol):
                # error: return type template not found among parameter type templates
                assert(False)

            # check for consistency among actual derived types for template parameters
            from pynestml.cocos.co_co_function_argument_template_types_consistent import CorrectTemplatedArgumentTypesVisitor
            correctTemplatedArgumentTypesVisitor = CorrectTemplatedArgumentTypesVisitor()
            correctTemplatedArgumentTypesVisitor._failure_occurred = False
            node.accept(correctTemplatedArgumentTypesVisitor)
            if correctTemplatedArgumentTypesVisitor._failure_occurred:
                return_type = ErrorTypeSymbol()

        return_type.referenced_object = node

        # convolve symbol does not have a return type set.
        # returns whatever type the second parameter is.
        if function_name == PredefinedFunctions.CONVOLVE:
            # Deviations from the assumptions made here are handled in the convolveCoco
            buffer_parameter = node.get_function_call().get_args()[1]

            if buffer_parameter.get_variable() is not None:
                buffer_name = buffer_parameter.get_variable().get_name()
                buffer_symbol_resolve = scope.resolve_to_symbol(buffer_name, SymbolKind.VARIABLE)
                if buffer_symbol_resolve is not None:
                    node.type = buffer_symbol_resolve.get_type_symbol()
                    return

            # getting here means there is an error with the parameters to convolve
            code, message = Messages.get_convolve_needs_buffer_parameter()
            Logger.log_message(code=code, message=message, error_position=node.get_source_position(),
                               log_level=LoggingLevel.ERROR)
            node.type = ErrorTypeSymbol()
            return

        if isinstance(method_symbol.get_return_type(), VoidTypeSymbol):
            # todo: the error message is not used here, fix this
            # error_msg = ErrorStrings.message_void_function_on_rhs(self, function_name, node.get_source_position())
            node.type = ErrorTypeSymbol()
            return

        # if nothing special is handled, just get the expression type from the return type of the function
        node.type = return_type