anonymous_namespace{state_test.cpp} Namespace Reference

Functions
static bool	is_available (lutok::state &state, const char *symbol)
	Checks if a symbol is available.
static void	check_modules (lutok::state &state, const std::string &expected)
	Checks that no modules are present or that only one has been loaded.
static int	c_get_upvalues (lua_State *raw_state)
	A C closure that returns its two integral upvalues.
static int	cxx_multiply_closure (lutok::state &state)
	A custom C++ multiply function with one of its factors on its closure.
static int	cxx_divide (lutok::state &state)
	A custom C++ integral division function for Lua.
static int	raise_long_error (lutok::state &state)
	A Lua function that raises a very long error message.

---

Function Documentation

static int anonymous_namespace{state_test.cpp}::c_get_upvalues ( lua_State *  raw_state )

static

A C closure that returns its two integral upvalues.

Postcondition:

stack(-2) contains the first upvalue.

stack(-1) contains the second upvalue.

Parameters:

raw_state

The raw Lua state.

Returns:

The number of result values, i.e. 2.

static void anonymous_namespace{state_test.cpp}::check_modules ( lutok::state &  state, const std::string &  expected  )

static

Checks that no modules are present or that only one has been loaded.

Postcondition:

The test case terminates if there is any module present when expected is empty or if there two modules loaded when expected is defined.

Parameters:

state	The Lua state.
expected	The module to expect. Empty if no modules are allowed.

static int anonymous_namespace{state_test.cpp}::cxx_divide ( lutok::state &  state )

static

A custom C++ integral division function for Lua.

Precondition:

stack(-2) contains the dividend.

stack(-1) contains the divisor.

Postcondition:

stack(-2) contains the quotient of the division.

stack(-1) contains the remainder of the division.

Parameters:

state

The Lua state.

Returns:

The number of result values, i.e. 1.

Exceptions:

std::runtime_error	If the divisor is zero.
std::string	If the dividend or the divisor are negative. This is an exception not derived from std::exception on purpose to ensure that the C++ wrapping correctly captures any exception regardless of its type.

static int anonymous_namespace{state_test.cpp}::cxx_multiply_closure ( lutok::state &  state )

static

A custom C++ multiply function with one of its factors on its closure.

Precondition:

stack(-1) contains the second factor.

Postcondition:

stack(-1) contains the product of the two input factors.

Parameters:

state

The Lua state.

Returns:

The number of result values, i.e. 1.

static bool anonymous_namespace{state_test.cpp}::is_available ( lutok::state &  state, const char *  symbol  )

static

Checks if a symbol is available.

Parameters:

state	The Lua state.
symbol	The symbol to check for.

Returns:

True if the symbol is defined, false otherwise.

static int anonymous_namespace{state_test.cpp}::raise_long_error ( lutok::state &  state )

static

A Lua function that raises a very long error message.

Precondition:

stack(-1) contains the length of the message to construct.

Parameters:

state

The Lua state.

Returns:

Never returns.

Exceptions:

std::runtime_error

Unconditionally, with an error message formed by the repetition of 'A' as many times as requested.