Package io.micronaut.expressions.parser.ast.operator.binary

Class RelationalOperator

java.lang.Object

io.micronaut.expressions.parser.ast.ExpressionNode

io.micronaut.expressions.parser.ast.operator.binary.RelationalOperator

Direct Known Subclasses:

GteOperator, GtOperator, LteOperator, LtOperator

@Internal
public abstract sealed class RelationalOperator
extends ExpressionNode
permits GtOperator, GteOperator, LtOperator, LteOperator

Abstract expression AST node for relational operations. Relational operations can be applied to numeric types or types that are Comparable to each other. It is unclear at AST building stage what kind of relational operation will be performed, so this node does not directly include bytecode generation logic. At type resolution stage it instantiates either NumericComparisonOperation or ComparablesComparisonOperation and delegates bytecode generation to respective node instance.

Since:

4.0.0

Author:

Sergey Gavrilov

Field Summary

Fields

Modifier and Type	Field	Description
protected final ExpressionNode	leftOperand
protected final ExpressionNode	rightOperand

Fields inherited from class io.micronaut.expressions.parser.ast.ExpressionNode

classElement, nodeType

Constructor Summary

Constructors

Constructor	Description
RelationalOperator(ExpressionNode leftOperand, ExpressionNode rightOperand)

Method Summary

Modifier and Type	Method	Description
protected org.objectweb.asm.Type	doResolveType(@NonNull ExpressionVisitorContext ctx)	Resolves expression AST node type.
void	generateBytecode(ExpressionCompilationContext ctx)	Generates bytecode for this AST node.
protected abstract Integer	intComparisonOpcode()
protected abstract Integer	nonIntComparisonOpcode()

Methods inherited from class io.micronaut.expressions.parser.ast.ExpressionNode

compile, doResolveClassElement, doResolveClassElement, resolveClassElement, resolveClassElement, resolveType, resolveType

Methods inherited from class java.lang.Object

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

Field Details

leftOperand

protected final ExpressionNode leftOperand

rightOperand

protected final ExpressionNode rightOperand

Constructor Details

RelationalOperator

public RelationalOperator(ExpressionNode leftOperand,
 ExpressionNode rightOperand)

Method Details

intComparisonOpcode

protected abstract Integer intComparisonOpcode()

nonIntComparisonOpcode

protected abstract Integer nonIntComparisonOpcode()

doResolveType

protected org.objectweb.asm.Type doResolveType(@NonNull
 @NonNull ExpressionVisitorContext ctx)

Description copied from class: ExpressionNode

Resolves expression AST node type.

Specified by:

doResolveType in class ExpressionNode

Parameters:

ctx - expression compilation context

Returns:

resolved type

generateBytecode

public void generateBytecode(ExpressionCompilationContext ctx)

Description copied from class: ExpressionNode

Generates bytecode for this AST node.

Specified by:

generateBytecode in class ExpressionNode

Parameters:

ctx - expression compilation context