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package io.ebean.enhance.transactional;

import io.ebean.enhance.asm.Label;
import io.ebean.enhance.asm.MethodVisitor;
import io.ebean.enhance.asm.commons.AdviceAdapter;

import static io.ebean.enhance.Transformer.EBEAN_ASM_VERSION;
import static io.ebean.enhance.common.EnhanceConstants.NOARG_VOID;

/**
 * Enhance an existing static initialisation block with a call to our static
 * _$initProfileLocations() method.
 */
class StaticInitAdapter extends AdviceAdapter {

  private final String className;

  StaticInitAdapter(MethodVisitor mv, int access, String name, String desc, String className) {
    super(EBEAN_ASM_VERSION, mv, access, name, desc);
    this.className = className;
  }

  /**
   * Adds the call to the static _$initProfileLocations() method.
   */
  @Override
  public void visitCode() {
    super.visitCode();
    Label l0 = new Label();
    mv.visitLabel(l0);
    mv.visitLineNumber(1, l0);
    mv.visitMethodInsn(INVOKESTATIC, className, "_$initProfileLocations", NOARG_VOID, false);
  }

}