polemy.layer

alias Layer ;

Type for the layer ID

SystemLayer

Predefined layer for internal data

ValueLayer

Predefined layer for normal run

MacroLayer

Predefined layer for macro run (@lay() changes layer)

RawMacroLayer

Predefined layer for macro run (@lay() becomes AST)

bool isUserDefinedLayer (Layer lay);

True if it is a user-defined layer

bool isASTLayer (Layer lay);

True if it is macro-like layer that basically generates syntax tree

bool isNoLayerChangeLayer (Layer lay);

True if in the specified layer @lay(...) has no effect and merely produces a syntax tree

bool isMacroLayer (Layer lay);

True if do macro expanstion