Inheritance diagram for nullif:

Collaboration diagram for nullif:

Public Member Functions
	nullif (prod p, sqltype type_constraint=0)

Public Member Functions inherited from coalesce
	coalesce (prod p, sqltype type_constraint=0, const char *abbrev="coalesce")

virtual void	out (std::ostream &out)
	Emit SQL for this production.

virtual void	accept (prod_visitor *v)
	Visitor pattern for walking the AST. More...

Public Member Functions inherited from value_expr
	value_expr (prod *p)

Public Member Functions inherited from prod
	prod (prod *parent)

virtual void	indent (std::ostream &out)
	Newline and indent according to tree level.

virtual void	match ()
	Check with the impedance matching code whether this production has been blacklisted and throw an exception.

virtual void	fail (const char *reason)
	Report a "failed to generate" error.

void	retry ()
	Increase the retry count and throw an exception when retry_limit is exceeded.

Additional Inherited Members
Static Public Member Functions inherited from value_expr
static shared_ptr< value_expr >	factory (prod p, sqltype type_constraint=0)

Public Attributes inherited from coalesce
const char *	abbrev_

vector< shared_ptr< value_expr > >	value_exprs

Public Attributes inherited from value_expr
sqltype *	type

Public Attributes inherited from prod
struct prod *	pprod
	Parent production that instanciated this one. More...

struct scope *	scope
	Scope object to model column/table reference visibility.

int	level
	Level of this production in the AST. 0 for root node.

long	retries = 0
	Number of retries in this production. More...

long	retry_limit = 100
	Maximum number of retries allowed before reporting a failure to the Parent prod.

Detailed Description

Definition at line 81 of file expr.hh.

The documentation for this struct was generated from the following file:

Public Member Functions