Class CastInstrAsmGenerator

java.lang.Object

org.ek9lang.compiler.backend.jvm.AbstractAsmGenerator

org.ek9lang.compiler.backend.jvm.CastInstrAsmGenerator

All Implemented Interfaces:

Consumer<CastInstr>

final class CastInstrAsmGenerator
extends AbstractAsmGenerator
implements Consumer<CastInstr>

Specialized ASM generator for CastInstr processing.

Generates JVM CHECKCAST instruction for explicit type casting, or INSTANCEOF instruction for type checking. Used in Scenario 2 wrappers where delegate method returns Any but wrapper method returns a more specific type, and for wrapper equality operations that need to detect wrapper-to-wrapper comparison.

Field Summary

Fields inherited from class AbstractAsmGenerator

classWriter, constructTargetTuple, outputVisitor

Constructor Summary

Constructors

Constructor	Description
CastInstrAsmGenerator(ConstructTargetTuple constructTargetTuple, OutputVisitor outputVisitor, org.objectweb.asm.ClassWriter classWriter)

Method Summary

Modifier and Type	Method	Description
void	accept(CastInstr castInstr)	Generate JVM bytecode for a cast instruction.

Methods inherited from class AbstractAsmGenerator

convertToJvmDescriptor, convertToJvmName, extractFieldName, generateBooleanLiteral, generateCharacterLiteral, generateDebugInfo, generateFloatLiteral, generateIntegerLiteral, generateLoadVariable, generateLocalVariableTable, generateMethodDescriptor, generateObjectLiteral, generateStackOperation, generateStoreVariable, generateStoreVariableAsInt, generateStringLiteral, getCurrentMethodVisitor, getFieldDescriptor, getMethodContext, getOrCreateLabel, getOwnerClassName, getVariableIndex, isFieldAccess, isVariableAllocated, isVariableFieldAccess, setCurrentMethodVisitor, setSharedMethodContext, toJvmFieldName, trackTempVariableFromLiteral, trackTempVariableFromLoad

Methods inherited from class Object

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

Methods inherited from interface Consumer

andThen

Constructor Details

CastInstrAsmGenerator

CastInstrAsmGenerator(ConstructTargetTuple constructTargetTuple,
 OutputVisitor outputVisitor,
 org.objectweb.asm.ClassWriter classWriter)

Method Details

accept

public void accept(CastInstr castInstr)

Generate JVM bytecode for a cast instruction.

Loads the source value, applies CHECKCAST or INSTANCEOF to target type, and stores result. For INSTANCEOF, the result is an int (0 or 1) stored with ISTORE.

Specified by:

accept in interface Consumer<CastInstr>