rego::bundle::Operand Struct Reference

Represents an operand in the IR. More...

#include <rego.hh>

Public Member Functions
	Operand ()
	Constructs an Operand with type None.

Static Public Member Functions
static Operand	from_op (const Node &n)
	Constructs an Operand from the specified node.
static Operand	from_index (const Node &n)
	Constructs an Operand from the specified node. Will have a type of Index.
static Operand	from_value (const Node &n)
	Constructs an Operand from the specified node. Will have a type of Value.

Public Attributes
OperandType	type
	The type of the operand.
union {
std::int64_t   value
	An integer value (if type is Value).
size_t   index
	A local index (if type is Local, String, or Index).
};

Friends
std::ostream &	operator<< (std::ostream &stream, const Operand &op)
	Writes the operand to a stream (used for debugging purposes).

Detailed Description

Represents an operand in the IR.

In this implementation of the IR the operand is overloaded slightly. It is either (as in the specification) a local index, a string index, or a boolean value (true or false). However, to simplify the implementation, it can also be a raw local index (OperandType::Index) or a raw integer value (OperandType::Value). These two additional types allow for more flexibility in the IR representation. A type of None indicates that the operand is not used.

Member Function Documentation

from_index()

static Operand rego::bundle::Operand::from_index ( const Node & n )

static

Constructs an Operand from the specified node. Will have a type of Index.

Note

The node must be an integer scalar.

Parameters

n	The node to construct the operand from.

Returns

The constructed operand.

from_op()

static Operand rego::bundle::Operand::from_op ( const Node & n )

static

Constructs an Operand from the specified node.

Note

Will have a type of Local, String, True, or False.

Parameters

n	The node to construct the operand from.

Returns

The constructed operand.

from_value()

static Operand rego::bundle::Operand::from_value ( const Node & n )

static

Constructs an Operand from the specified node. Will have a type of Value.

Note

The node must be an integer scalar.

Parameters

n	The node to construct the operand from.

Returns

The constructed operand.

Friends And Related Symbol Documentation

operator<<

std::ostream & operator<< ( std::ostream & stream, const Operand & op )

friend

Writes the operand to a stream (used for debugging purposes).

Parameters

stream	The stream to write to.
op	The operand to write.

Returns

The stream.

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

• include/rego/rego.hh