AST Processing
[ROSE Midend]

Collaboration diagram for AST Processing:

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Detailed Description

This is the AST Processing Mechanism for traversing the AST and computing attributes.

Authors:

Markus Schordan
(preliminary versions developed by Quinlan and Kowarschik using a different algorithm for combing attributes and a single interface)

The AST Processing Mechanism allows to traverse the AST and to compute inherited and synthesized attributes. There exist 4 different interfaces:

1. SimpleProcessing provides a pre- and postorder traversal of the AST. The user needs to implement one visit function.
2. The TopDownProcessing - provides the computation of inherited attributes using a pre-order traversal.
3. The BottomUpProcessing - provides the computation of synthesized attributes using a post-order traversal.
4. The BottomUpTopDownProcessing - provides the computation of inherited and synthesized attributes.

The classes have pure virtual functions. You must inherit and implement the required methods.

Classes
class	AstSimpleProcessing
	Class for traversing the AST. More...
class	AstTopDownProcessing< InheritedAttributeType >
	Attribute Evaluator for inherited attributes. More...
class	AstBottomUpProcessing< SynthesizedAttributeType >
	Attribute Evaluator for synthesized attributes. More...
class	AstTopDownBottomUpProcessing< InheritedAttributeType, SynthesizedAttributeType >
	Attribute Evaluator for inherited and synthesized attributes. More...
class	AstAttributeMechanism
	This mechanism provides capabilities to define a mapping from strings to AstAttributes. An instance of this class is accessible at each ROSE AST node in the data member 'attribute'. More...
class	AstAttribute
	Base class for attributes that can be attached to AST nodes using the attribute mechanism in each AST node. More...
class	Ast
	This class allows to use iterators on the AST; it is different to the AstProcessing classes because no visit function needs to be implemented. More...

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