BindingEnv Struct Reference

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 std::string &key, const std::string &val)
void	AddRule (std::unique_ptr< const Rule > rule)
	BindingEnv ()
	BindingEnv (BindingEnv *parent)
const std::map< std::string, std::unique_ptr< const Rule > > &	GetRules () const
const Rule *	LookupRule (const std::string &rule_name)
const Rule *	LookupRuleCurrentScope (const std::string &rule_name)
virtual std::string	LookupVariable (const std::string &var)
std::string	LookupWithFallback (const std::string &var, const EvalString *eval, Env *env)
	This is tricky.
virtual	~BindingEnv ()

Private Attributes
std::map< std::string, std::string >	bindings_
BindingEnv *	parent_
std::map< std::string, std::unique_ptr< 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 93 of file eval_env.h.

Constructor & Destructor Documentation

BindingEnv() [1/2]

BindingEnv::BindingEnv ( )

inline

Definition at line 94 of file eval_env.h.

References parent_.

Referenced by BindingEnv().

BindingEnv() [2/2]

BindingEnv::BindingEnv ( BindingEnv * parent )

inlineexplicit

Definition at line 95 of file eval_env.h.

References BindingEnv(), and parent_.

~BindingEnv()

virtual BindingEnv::~BindingEnv ( )

inlinevirtual

Definition at line 97 of file eval_env.h.

Member Function Documentation

AddBinding()

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

Definition at line 30 of file eval_env.cc.

References bindings_.

Referenced by ManifestParser::ParseEdge(), and DyndepLoader::UpdateEdge().

AddRule()

void BindingEnv::AddRule

(

std::unique_ptr< const Rule >

rule

)

Definition at line 34 of file eval_env.cc.

References LookupRuleCurrentScope(), and rules_.

GetRules()

const map< string, std::unique_ptr< const Rule > > & BindingEnv::GetRules

(

)

const

Definition at line 91 of file eval_env.cc.

References rules_.

LookupRule()

const Rule * BindingEnv::LookupRule

(

const std::string &

rule_name

)

Definition at line 46 of file eval_env.cc.

References parent_, and rules_.

LookupRuleCurrentScope()

const Rule * BindingEnv::LookupRuleCurrentScope

(

const std::string &

rule_name

)

Definition at line 39 of file eval_env.cc.

References rules_.

Referenced by AddRule().

LookupVariable()

string BindingEnv::LookupVariable ( const std::string & var )

virtual

Implements Env.

Definition at line 21 of file eval_env.cc.

References bindings_, and parent_.

LookupWithFallback()

string BindingEnv::LookupWithFallback	(	const std::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 95 of file eval_env.cc.

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

Member Data Documentation

bindings_

std::map<std::string, std::string> BindingEnv::bindings_

private

Definition at line 116 of file eval_env.h.

Referenced by AddBinding(), LookupVariable(), and LookupWithFallback().

parent_

BindingEnv* BindingEnv::parent_

private

Definition at line 118 of file eval_env.h.

Referenced by BindingEnv(), BindingEnv(), LookupRule(), LookupVariable(), and LookupWithFallback().

rules_

std::map<std::string, std::unique_ptr<const Rule> > BindingEnv::rules_

private

Definition at line 117 of file eval_env.h.

Referenced by AddRule(), GetRules(), LookupRule(), and LookupRuleCurrentScope().

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

• eval_env.h
• eval_env.cc