eve::decision::EvaluationContext类 参考

Read-only state boundary used by every condition evaluation. 更多...

#include <Condition.h>

类 eve::decision::EvaluationContext 继承关系图:

Public 成员函数
virtual	~EvaluationContext ()=default
	Releases EvaluationContext resources.
virtual std::optional< Value >	value (std::string_view key) const =0
	Query a named scalar or structured value for Compare nodes.
virtual std::optional< bool >	hasTag (std::string_view tag) const =0
	Query tag membership; nullopt means the tag source is unavailable.
virtual std::optional< Value >	attribute (std::string_view key) const =0
	Query an attribute value; nullopt means the attribute is absent.
virtual std::optional< Value >	resource (std::string_view key) const =0
	Query a resource amount or resource marker.
virtual std::optional< Value >	state (std::string_view key) const =0
	Query a state value for StateEquals nodes.
virtual std::optional< bool >	authority (std::string_view scope) const =0
	Query authority without changing grants, leases, or state.
virtual std::optional< ConditionResult >	policy (std::string_view name, const Value &arguments) const =0
	Evaluate a named read-only policy with owned arguments.

详细描述

Read-only state boundary used by every condition evaluation.

Implementations must not mutate domain state. Methods are synchronous and called on the caller's thread; implementations must not retain the caller's query keys or invoke unknown callbacks while holding a lock. nullopt means the requested capability/value is unavailable, which is distinct from a known false value.

在文件 Condition.h 第 166 行定义.

构造及析构函数说明

~EvaluationContext()

virtual eve::decision::EvaluationContext::~EvaluationContext ( )

virtualdefault

Releases EvaluationContext resources.

成员函数说明

attribute()

virtual std::optional< Value > eve::decision::EvaluationContext::attribute ( std::string_view  key ) const

pure virtual

Query an attribute value; nullopt means the attribute is absent.

在 eve::card::CardPlayConditionContext, eve::dialogue::StateEvaluationContext, eve::emergence::FactStore , 以及 eve::rpg::SkillConditionContext 内被实现.

authority()

virtual std::optional< bool > eve::decision::EvaluationContext::authority ( std::string_view  scope ) const

pure virtual

Query authority without changing grants, leases, or state.

在 eve::card::CardPlayConditionContext, eve::dialogue::StateEvaluationContext, eve::emergence::FactStore , 以及 eve::rpg::SkillConditionContext 内被实现.

hasTag()

virtual std::optional< bool > eve::decision::EvaluationContext::hasTag ( std::string_view  tag ) const

pure virtual

Query tag membership; nullopt means the tag source is unavailable.

在 eve::card::CardPlayConditionContext, eve::dialogue::StateEvaluationContext, eve::emergence::FactStore , 以及 eve::rpg::SkillConditionContext 内被实现.

policy()

virtual std::optional< ConditionResult > eve::decision::EvaluationContext::policy ( std::string_view  name, const Value &  arguments  ) const

pure virtual

Evaluate a named read-only policy with owned arguments.

在 eve::card::CardPlayConditionContext, eve::dialogue::StateEvaluationContext, eve::emergence::FactStore , 以及 eve::rpg::SkillConditionContext 内被实现.

resource()

virtual std::optional< Value > eve::decision::EvaluationContext::resource ( std::string_view  key ) const

pure virtual

Query a resource amount or resource marker.

在 eve::card::CardPlayConditionContext, eve::dialogue::StateEvaluationContext, eve::emergence::FactStore , 以及 eve::rpg::SkillConditionContext 内被实现.

state()

virtual std::optional< Value > eve::decision::EvaluationContext::state ( std::string_view  key ) const

pure virtual

Query a state value for StateEquals nodes.

在 eve::card::CardPlayConditionContext, eve::dialogue::StateEvaluationContext, eve::emergence::FactStore , 以及 eve::rpg::SkillConditionContext 内被实现.

value()

virtual std::optional< Value > eve::decision::EvaluationContext::value ( std::string_view  key ) const

pure virtual

Query a named scalar or structured value for Compare nodes.

在 eve::card::CardPlayConditionContext, eve::dialogue::StateEvaluationContext, eve::emergence::FactStore , 以及 eve::rpg::SkillConditionContext 内被实现.

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该类的文档由以下文件生成:

• src/modules/decision/Condition.h