An Env which contains a mapping of variables to values as well as a pointer to a parent scope. More...

#include <eval_env.h>

Inheritance diagram for BindingEnv:

Public Member Functions
void	AddBinding (const string &key, const string &val)

void	AddRule (const Rule *rule)

	BindingEnv ()

	BindingEnv (BindingEnv *parent)

const map< string, const Rule * > &	GetRules () const

const Rule *	LookupRule (const string &rule_name)

const Rule *	LookupRuleCurrentScope (const string &rule_name)

virtual string	LookupVariable (const string &var)

string	LookupWithFallback (const string &var, const EvalString eval, Env env)
	This is tricky. More...

virtual	~BindingEnv ()

Private Attributes
map< string, string >	bindings_

BindingEnv *	parent_

map< string, const Rule * >	rules_

Detailed Description

An Env which contains a mapping of variables to values as well as a pointer to a parent scope.

Definition at line 77 of file eval_env.h.

Constructor & Destructor Documentation

◆ BindingEnv() [1/2]

BindingEnv::BindingEnv ( )

inline

Definition at line 78 of file eval_env.h.

◆ BindingEnv() [2/2]

BindingEnv::BindingEnv ( BindingEnv * parent )

inlineexplicit

Definition at line 79 of file eval_env.h.

◆ ~BindingEnv()

virtual BindingEnv::~BindingEnv ( )

inlinevirtual

Definition at line 81 of file eval_env.h.

Member Function Documentation

◆ AddBinding()

void BindingEnv::AddBinding	(	const string &	key,
		const string &	val
	)

Definition at line 28 of file eval_env.cc.

References bindings_.

Referenced by ManifestParser::Parse(), and ManifestParser::ParseEdge().

◆ AddRule()

void BindingEnv::AddRule ( const Rule * rule )

Definition at line 32 of file eval_env.cc.

References LookupRuleCurrentScope(), Rule::name(), and rules_.

Referenced by ManifestParser::ParseRule(), and State::State().

◆ GetRules()

const map< string, const Rule * > & BindingEnv::GetRules ( ) const

Definition at line 78 of file eval_env.cc.

References rules_.

◆ LookupRule()

const Rule * BindingEnv::LookupRule ( const string & rule_name )

Definition at line 44 of file eval_env.cc.

References LookupRule(), parent_, and rules_.

Referenced by Cleaner::CleanRule(), Cleaner::CleanRules(), LookupRule(), and ManifestParser::ParseEdge().

◆ LookupRuleCurrentScope()

const Rule * BindingEnv::LookupRuleCurrentScope ( const string & rule_name )

Definition at line 37 of file eval_env.cc.

References rules_.

Referenced by AddRule(), and ManifestParser::ParseRule().

◆ LookupVariable()

string BindingEnv::LookupVariable ( const string & var )

virtual

Implements Env.

Definition at line 19 of file eval_env.cc.

References bindings_, LookupVariable(), and parent_.

Referenced by LookupVariable(), and LookupWithFallback().

◆ LookupWithFallback()

string BindingEnv::LookupWithFallback	(	const string &	var,
		const EvalString *	eval,
		Env *	env
	)

This is tricky.

Edges want lookup scope to go in this order: 1) value set on edge itself (edge_->env_) 2) value set on rule, with expansion in the edge's scope 3) value set on enclosing scope of edge (edge_->env_->parent_) This function takes as parameters the necessary info to do (2).

Definition at line 82 of file eval_env.cc.

References bindings_, EvalString::Evaluate(), LookupVariable(), and parent_.

Referenced by EdgeEnv::LookupVariable().