Package net.emustudio.edigen.generation

Class GenerateMethodsVisitor

java.lang.Object

net.emustudio.edigen.Visitor

net.emustudio.edigen.generation.GenerateMethodsVisitor

public class GenerateMethodsVisitor
extends Visitor

A visitor which generates Java source code of the instruction decoder methods for all rules.

Constructor Summary

Constructors

Constructor	Description
GenerateMethodsVisitor(java.io.Writer output)	Constructs the visitor.

Method Summary

Modifier and Type	Method	Description
void	visit(Decoder decoder)	Finds out which root rules are available.
void	visit(Mask mask)	Writes the unit reading code and if the mask is not zero-only, also writes the switch statement.
void	visit(Pattern pattern)	Writes the case / default statement.
void	visit(Rule rule)	Writes the method definition.
void	visit(Subrule subrule)	Writes the method invocation.
void	visit(Variant variant)	Writes the code for the recognized variant.

Methods inherited from class net.emustudio.edigen.Visitor

visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

GenerateMethodsVisitor

public GenerateMethodsVisitor(java.io.Writer output)

Constructs the visitor.

Parameters:

output - the output stream to write the code to

Method Detail

visit

public void visit(Decoder decoder)
           throws SemanticException

Finds out which root rules are available.

Overrides:

visit in class Visitor

Parameters:

decoder - decoder node

Throws:

SemanticException - never

visit

public void visit(Rule rule)
           throws SemanticException

Writes the method definition.

Overrides:

visit in class Visitor

Parameters:

rule - the rule node

Throws:

SemanticException - never

visit

public void visit(Mask mask)
           throws SemanticException

Writes the unit reading code and if the mask is not zero-only, also writes the switch statement.

Overrides:

visit in class Visitor

Parameters:

mask - the mask node

Throws:

SemanticException - never

visit

public void visit(Pattern pattern)
           throws SemanticException

Writes the case / default statement.

Overrides:

visit in class Visitor

Parameters:

pattern - the pattern node

Throws:

SemanticException - never

visit

public void visit(Variant variant)
           throws SemanticException

Writes the code for the recognized variant.

Overrides:

visit in class Visitor

Parameters:

variant - the variant node

Throws:

SemanticException - never

visit

public void visit(Subrule subrule)

Writes the method invocation. If the rule has multiple names, one method is associated with multiple rule names. So the particular field (rule name) must be passed as an argument.

Overrides:

visit in class Visitor

Parameters:

subrule - the subrule node