Class ServiceOperationAsmGenerator

java.lang.Object
org.ek9lang.compiler.backend.jvm.ServiceOperationAsmGenerator
All Implemented Interfaces:
org.objectweb.asm.Opcodes
final class ServiceOperationAsmGenerator extends Object implements org.objectweb.asm.Opcodes
Generates one public static __op_<methodName> method per service route on the service class. Each method performs parameter extraction, sanitisation, type conversion, and dispatches to the service method — all as straight-line bytecode with zero reflection.

The method signature matches Ek9HttpOperationHandler.handle(HTTPRequest, HTTPContext, Any, String[], String[], String[], String): 

  public static HTTPResponse __op_health(
      HTTPRequest request,    // slot 0
      HTTPContext context,    // slot 1
      Any serviceInstance,    // slot 2
      String[] pathParams,    // slot 3
      String[] queryValues,   // slot 4
      String[] headerValues,  // slot 5
      String content)         // slot 6

The generated handler is wired via INVOKEDYNAMIC + LambdaMetafactory in ApplicationClassGenerator, giving the JIT a single compilation unit from router dispatch through to service method invocation.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    (package private) static final String
    HANDLER_METHOD_DESC
    Method descriptor matching Ek9HttpOperationHandler.handle().

    Fields inherited from interface org.objectweb.asm.Opcodes

    AALOAD, AASTORE, ACC_ABSTRACT, ACC_ANNOTATION, ACC_BRIDGE, ACC_DEPRECATED, ACC_ENUM, ACC_FINAL, ACC_INTERFACE, ACC_MANDATED, ACC_MODULE, ACC_NATIVE, ACC_OPEN, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_RECORD, ACC_STATIC, ACC_STATIC_PHASE, ACC_STRICT, ACC_SUPER, ACC_SYNCHRONIZED, ACC_SYNTHETIC, ACC_TRANSIENT, ACC_TRANSITIVE, ACC_VARARGS, ACC_VOLATILE, ACONST_NULL, ALOAD, ANEWARRAY, ARETURN, ARRAYLENGTH, ASM10_EXPERIMENTAL, ASM4, ASM5, ASM6, ASM7, ASM8, ASM9, ASTORE, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DMUL, DNEG, DOUBLE, DREM, DRETURN, DSTORE, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F_APPEND, F_CHOP, F_FULL, F_NEW, F_SAME, F_SAME1, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAT, FMUL, FNEG, FREM, FRETURN, FSTORE, FSUB, GETFIELD, GETSTATIC, GOTO, H_GETFIELD, H_GETSTATIC, H_INVOKEINTERFACE, H_INVOKESPECIAL, H_INVOKESTATIC, H_INVOKEVIRTUAL, H_NEWINVOKESPECIAL, H_PUTFIELD, H_PUTSTATIC, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, IMUL, INEG, INSTANCEOF, INTEGER, INVOKEDYNAMIC, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISUB, IUSHR, IXOR, JSR, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDIV, LLOAD, LMUL, LNEG, LONG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, NULL, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, SOURCE_DEPRECATED, SOURCE_MASK, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, TOP, UNINITIALIZED_THIS, V_PREVIEW, V1_1, V1_2, V1_3, V1_4, V1_5, V1_6, V1_7, V1_8, V10, V11, V12, V13, V14, V15, V16, V17, V18, V19, V20, V21, V22, V23, V24, V25, V9

  • Constructor Summary

    Constructors
    Constructor
    Description
    ServiceOperationAsmGenerator(org.objectweb.asm.ClassWriter classWriter, FullyQualifiedJvmName jvmNameConverter)
     

  • Method Summary

    Modifier and Type
    Method
    Description
    (package private) void
    generate(ServiceRouteDetails routeDetails, String serviceJvmType)
    Generate one __op_* method for each route in the service route details.

    Methods inherited from class Object

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

  • Field Details

    • HANDLER_METHOD_DESC

      static final String HANDLER_METHOD_DESC
      Method descriptor matching Ek9HttpOperationHandler.handle().
      See Also:

  • Constructor Details

    • ServiceOperationAsmGenerator

      ServiceOperationAsmGenerator(org.objectweb.asm.ClassWriter classWriter, FullyQualifiedJvmName jvmNameConverter)

  • Method Details

    • generate

      void generate(ServiceRouteDetails routeDetails, String serviceJvmType)
      Generate one __op_* method for each route in the service route details.
      Parameters:
      routeDetails - the IR service route metadata
      serviceJvmType - the JVM internal name of the service class