bs::shell_node_pipe Class Reference

Pipe operator node (connects stdout of left to stdin of right). More...

#include <shell_node.h>

Inheritance diagram for bs::shell_node_pipe:

Collaboration diagram for bs::shell_node_pipe:

Public Member Functions
	shell_node_pipe (const std::size_t nPos, std::unique_ptr< shell_node_evaluable > &&pLeft, std::unique_ptr< shell_node_evaluable > &&pRight)
	Construct a pipe node.
shell_status	evaluate (shell_session &oSession) const override
	Evaluate pipe semantics (setup streams and execute both sides).
Public Member Functions inherited from bs::shell_node_operator
int	get_priority () const noexcept
	Get the operator priority.
const shell_node_evaluable *	get_left () const noexcept
	Get (non-owning) pointer to the left operand.
const shell_node_evaluable *	get_right () const noexcept
	Get (non-owning) pointer to the right operand.
std::unique_ptr< shell_node_evaluable >	swap_left (std::unique_ptr< shell_node_evaluable > &&pLeft)
	Swap-in a new left operand, returning the old one.
std::unique_ptr< shell_node_evaluable >	swap_right (std::unique_ptr< shell_node_evaluable > &&pRight)
	Swap-in a new right operand, returning the old one.
Public Member Functions inherited from bs::shell_node_evaluable
	shell_node_evaluable (const shell_node_type nType, const std::size_t nPos)
	Construct an evaluable node.
Public Member Functions inherited from bs::shell_node
virtual	~shell_node ()=default
	Virtual default destructor for polymorphic deletion.
shell_node_type	get_type () const noexcept
	Get the node type.
std::size_t	get_pos () const noexcept
	Get node position in the original input stream.

Friends
class	shell_node_operator

Additional Inherited Members
Static Public Member Functions inherited from bs::shell_node_operator
static std::unique_ptr< shell_node_evaluable >	make (shell_node_type nType, std::size_t nPos, std::unique_ptr< shell_node_evaluable > &&pLeft, std::unique_ptr< shell_node_evaluable > &&pRight)
	Makes an operator node.
Static Public Attributes inherited from bs::shell_node_operator
static constexpr int	PRIORITY_PIPE = 5
	Priority for operator pipe.
static constexpr int	PRIORITY_AND = 4
	Priority for operator and.
static constexpr int	PRIORITY_OR = 3
	Priority for operator or.
Protected Member Functions inherited from bs::shell_node_operator
	shell_node_operator (shell_node_type nType, std::size_t nPos, int nPriority, std::unique_ptr< shell_node_evaluable > &&pLeft, std::unique_ptr< shell_node_evaluable > &&pRight)
	Construct an operator with both operands.
	shell_node_operator (shell_node_type nType, std::size_t nPos, int nPriority)
Protected Member Functions inherited from bs::shell_node
	shell_node (const shell_node_type nType, const std::size_t nPos)
	Protected constructor used by derived classes.
Protected Attributes inherited from bs::shell_node
const shell_node_type	m_nType
	Node type.
const std::size_t	m_nPos
	Position in the input stream.

Detailed Description

Pipe operator node (connects stdout of left to stdin of right).

Constructor & Destructor Documentation

shell_node_pipe()

bs::shell_node_pipe::shell_node_pipe ( const std::size_t  nPos, std::unique_ptr< shell_node_evaluable > &&  pLeft, std::unique_ptr< shell_node_evaluable > &&  pRight  )

inline

Construct a pipe node.

Exceptions

shell_node_invalid_argument

If pLeft or pRight is null.

Parameters

nPos	Position in stream.
pLeft	Left operand (producer).
pRight	Right operand (consumer).

Member Function Documentation

evaluate()

shell_status bs::shell_node_pipe::evaluate ( shell_session &  oSession ) const

overridevirtual

Evaluate pipe semantics (setup streams and execute both sides).

Parameters

oSession

Session context.

Returns

shell_status Result of the pipeline or last command status.

Implements bs::shell_node_evaluable.

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

• /home/runner/work/bashspark/bashspark/include/BashSpark/shell/shell_node.h
• /home/runner/work/bashspark/bashspark/src/BashSpark/shell/shell_node_evaluate.cpp