Inheritance diagram for exists_predicate:

Collaboration diagram for exists_predicate:

Public Member Functions
	exists_predicate (prod *p)

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 bool_expr
	bool_expr (prod *p)

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.

Public Attributes
shared_ptr< struct query_spec >	subquery

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.

Additional Inherited Members
Static Public Member Functions inherited from bool_expr
static shared_ptr< bool_expr >	factory (prod *p)

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

Detailed Description

Definition at line 120 of file expr.hh.

Member Function Documentation

void exists_predicate::accept ( prod_visitor * v )

virtual

Visitor pattern for walking the AST.

Make sure you visit all child production when deriving classes.

Reimplemented from prod.

Definition at line 124 of file expr.cc.

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