visitor_generate.h File Reference

Define macros for generating type visitors. More...

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Namespaces
namespace	iceberg
	Core Apache Iceberg C++ APIs.

Macros
#define	ICEBERG_GENERATE_FOR_ALL_TYPES(ACTION)
#define	ICEBERG_TYPE_SWITCH_WITH_PRIMITIVE_DEFAULT(ACTION)
	Generate switch-case for schema visitor pattern.

Detailed Description

Define macros for generating type visitors.

Macro Definition Documentation

ICEBERG_GENERATE_FOR_ALL_TYPES

#define ICEBERG_GENERATE_FOR_ALL_TYPES

(

ACTION

)

Value:

  ACTION(Boolean);                             \
  ACTION(Int);                                 \
  ACTION(Long);                                \
  ACTION(Float);                               \
  ACTION(Double);                              \
  ACTION(Decimal);                             \
  ACTION(Date);                                \
  ACTION(Time);                                \
  ACTION(Timestamp);                           \
  ACTION(TimestampTz);                         \
  ACTION(TimestampNs);                         \
  ACTION(TimestampTzNs);                       \
  ACTION(String);                              \
  ACTION(Uuid);                                \
  ACTION(Fixed);                               \
  ACTION(Binary);                              \
  ACTION(Unknown);                             \
  ACTION(Variant);                             \
  ACTION(Geometry);                            \
  ACTION(Geography);                           \
  ACTION(Struct);                              \
  ACTION(List);                                \
  ACTION(Map);

ICEBERG_TYPE_SWITCH_WITH_PRIMITIVE_DEFAULT

#define ICEBERG_TYPE_SWITCH_WITH_PRIMITIVE_DEFAULT

(

ACTION

)

Value:

  case ::iceberg::TypeId::kStruct:                         \
    ACTION(Struct)                                         \
  case ::iceberg::TypeId::kList:                           \
    ACTION(List)                                           \
  case ::iceberg::TypeId::kMap:                            \
    ACTION(Map)                                            \
  case ::iceberg::TypeId::kVariant:                        \
    ACTION(Variant)                                        \
  default:                                                 \
    ACTION(Primitive)

Generate switch-case for schema visitor pattern.

This macro generates switch cases that dispatch to visitor methods based on type:

• Struct types -> calls ACTION with Struct
• List types -> calls ACTION with List
• Map types -> calls ACTION with Map
• Variant type -> calls ACTION with Variant
• All primitive types (default) -> calls ACTION with Primitive

Variant is dispatched explicitly because it is neither a nested nor a primitive type, so it must not be routed into the primitive default (which would cast it to PrimitiveType).