Package com.helix.core.bytecode

Class DeadCodeEliminator

java.lang.Object

com.helix.core.bytecode.DeadCodeEliminator

All Implemented Interfaces:

AstVisitor<ExpressionNode>

public class DeadCodeEliminator
extends Object
implements AstVisitor<ExpressionNode>

AST Optimization pass that eliminates unreachable branches and redundant constant logical terms. (e.g. true && x -> x, false && x -> false, true || x -> true, false || x -> x).

Constructor Summary

Constructors

Constructor	Description
DeadCodeEliminator()

Method Summary

Modifier and Type	Method	Description
ExpressionNode	eliminate(ExpressionNode node)
ExpressionNode	visit(BinaryOpNode node)
ExpressionNode	visit(FieldAccessNode node)
ExpressionNode	visit(FunctionCallNode node)
ExpressionNode	visit(LiteralNode node)
ExpressionNode	visit(MethodCallNode node)
ExpressionNode	visit(OnnxInferenceNode node)
ExpressionNode	visit(UnaryOpNode node)
ExpressionNode	visit(VariableNode node)

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.helix.core.parser.ast.AstVisitor

visit, visit

Constructor Details

DeadCodeEliminator

public DeadCodeEliminator()

Method Details

eliminate

public ExpressionNode eliminate(ExpressionNode node)

visit

public ExpressionNode visit(LiteralNode node)

Specified by:

visit in interface AstVisitor<ExpressionNode>

visit

public ExpressionNode visit(VariableNode node)

Specified by:

visit in interface AstVisitor<ExpressionNode>

visit

public ExpressionNode visit(UnaryOpNode node)

Specified by:

visit in interface AstVisitor<ExpressionNode>

visit

public ExpressionNode visit(BinaryOpNode node)

Specified by:

visit in interface AstVisitor<ExpressionNode>

visit

public ExpressionNode visit(MethodCallNode node)

Specified by:

visit in interface AstVisitor<ExpressionNode>

visit

public ExpressionNode visit(FieldAccessNode node)

Specified by:

visit in interface AstVisitor<ExpressionNode>

visit

public ExpressionNode visit(FunctionCallNode node)

Specified by:

visit in interface AstVisitor<ExpressionNode>

visit

public ExpressionNode visit(OnnxInferenceNode node)

Specified by:

visit in interface AstVisitor<ExpressionNode>