DefinedTracker Struct Reference

DefinedTracker - This struct is used while parsing expressions to keep track of whether !defined(X) has been seen. More...

Public Types
enum	TrackerState { DefinedMacro , NotDefinedMacro , Unknown }
	Each time a Value is evaluated, it returns information about whether the parsed value is of the form defined(X), !defined(X) or is something else. More...

Public Attributes
enum DefinedTracker::TrackerState	State
IdentifierInfo *	TheMacro
	TheMacro - When the state is DefinedMacro or NotDefinedMacro, this indicates the macro that was checked.
bool	IncludedUndefinedIds = false

Detailed Description

DefinedTracker - This struct is used while parsing expressions to keep track of whether !defined(X) has been seen.

With this simple scheme, we handle the basic forms: !defined(X) and !defined X but we also trivially handle (silly) stuff like: !!!defined(X) and +!defined(X) and !+!+!defined(X) and !(defined(X)).

Definition at line 86 of file PPExpressions.cpp.

Member Enumeration Documentation

TrackerState

enum DefinedTracker::TrackerState

Each time a Value is evaluated, it returns information about whether the parsed value is of the form defined(X), !defined(X) or is something else.

Enumerator
DefinedMacro
NotDefinedMacro
Unknown

Definition at line 89 of file PPExpressions.cpp.

Member Data Documentation

IncludedUndefinedIds

bool DefinedTracker::IncludedUndefinedIds = false

Definition at line 97 of file PPExpressions.cpp.

Referenced by EvaluateDefined(), EvaluateDirectiveSubExpr(), and EvaluateValue().

State

enum DefinedTracker::TrackerState DefinedTracker::State

Referenced by EvaluateDefined(), and EvaluateValue().

TheMacro

IdentifierInfo* DefinedTracker::TheMacro

TheMacro - When the state is DefinedMacro or NotDefinedMacro, this indicates the macro that was checked.

Definition at line 96 of file PPExpressions.cpp.

Referenced by EvaluateDefined().

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

• lib/Lex/PPExpressions.cpp