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/*
* Copyright 2010-2015 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jetbrains.kotlin.metadata;
import "core/metadata/src/ext_options.proto";
option java_outer_classname = "ProtoBuf";
option optimize_for = LITE_RUNTIME;
message StringTable {
repeated string string = 1;
option (skip_message_in_comparison) = true;
}
message QualifiedNameTable {
message QualifiedName {
optional int32 parent_qualified_name = 1 [default = -1];
// id in the StringTable
required int32 short_name = 2;
optional Kind kind = 3 [default = PACKAGE];
enum Kind {
CLASS = 0;
PACKAGE = 1;
LOCAL = 2;
}
}
repeated QualifiedName qualified_name = 1;
option (skip_message_in_comparison) = true;
}
message Annotation {
message Argument {
message Value {
enum Type {
BYTE = 0;
CHAR = 1;
SHORT = 2;
INT = 3;
LONG = 4;
FLOAT = 5;
DOUBLE = 6;
BOOLEAN = 7;
STRING = 8;
CLASS = 9;
ENUM = 10;
ANNOTATION = 11;
ARRAY = 12;
}
// Note: a *Value* has a Type, not an Argument! This is done for future language features which may involve using arrays
// of elements of different types. Such entries are allowed in the constant pool of JVM class files.
// However, to save space, this field is optional: in case of homogeneous arrays, only the type of the first element is required
optional Type type = 1;
// Only one of the following values should be present
optional sint64 int_value = 2;
optional float float_value = 3;
optional double double_value = 4;
optional int32 string_value = 5 [(string_id_in_table) = true];
// If type = CLASS, FQ name of the referenced class; if type = ENUM, FQ name of the enum class
optional int32 class_id = 6 [(fq_name_id_in_table) = true];
optional int32 enum_value_id = 7 [(name_id_in_table) = true];
optional Annotation annotation = 8;
repeated Value array_element = 9;
// If type = CLASS, the number of dimensions of the array of the class specified in class_id.
// E.g. if class_id = kotlin/String, this annotation argument value denotes:
// - String::class, if array_dimension_count = 0
// - Array::class, if array_dimension_count = 1
// - Array>::class, if array_dimension_count = 2
// - etc.
// Since it's very difficult to represent Kotlin-specific type aspects (nullability, type projections) of array arguments
// in class literals on JVM, we don't bother to do represent this in our format as well.
// So, for example, values `Array>::class` and `Array>?>::class` will be represented exactly the same here.
optional int32 array_dimension_count = 11 [default = 0];
/*
isUnsigned
*/
optional int32 flags = 10 [default = 0];
}
required int32 name_id = 1 [(name_id_in_table) = true];
required Value value = 2;
}
required int32 id = 1 [(fq_name_id_in_table) = true];
repeated Argument argument = 2;
}
message Type {
message Argument {
enum Projection {
IN = 0;
OUT = 1;
INV = 2;
STAR = 3;
}
optional Projection projection = 1 [default = INV];
// When projection is STAR, no type is written, otherwise type must be specified
optional Type type = 2;
optional int32 type_id = 3 [(type_id_in_table) = true];
}
repeated Argument argument = 2;
optional bool nullable = 3 [default = false];
// If this field is set, the type is flexible.
// All the other fields and extensions represent its lower bound, and flexible_upper_bound must be set and represents its upper bound.
optional int32 flexible_type_capabilities_id = 4 [(string_id_in_table) = true];
optional Type flexible_upper_bound = 5;
optional int32 flexible_upper_bound_id = 8 [(type_id_in_table) = true];
// Only one of [class_name, type_parameter, type_parameter_name, type_alias_name] should be present
optional int32 class_name = 6 [(fq_name_id_in_table) = true];
optional int32 type_parameter = 7; // id of the type parameter
// Name of the type parameter in the immediate owner
optional int32 type_parameter_name = 9 [(name_id_in_table) = true];
// Note that this may be present only for abbreviated_type
// Top level types are always fully expanded
optional int32 type_alias_name = 12 [(fq_name_id_in_table) = true];
// Outer type may be present only if class_name or type_alias_name is present
optional Type outer_type = 10;
optional int32 outer_type_id = 11 [(type_id_in_table) = true];
optional Type abbreviated_type = 13;
optional int32 abbreviated_type_id = 14 [(type_id_in_table) = true];
/*
suspend
*/
optional int32 flags = 1;
extensions 100 to 199;
}
message TypeParameter {
required int32 id = 1;
required int32 name = 2 [(name_id_in_table) = true];
optional bool reified = 3 [default = false];
enum Variance {
IN = 0;
OUT = 1;
INV = 2;
}
optional Variance variance = 4 [default = INV];
repeated Type upper_bound = 5;
repeated int32 upper_bound_id = 6 [packed = true, (type_id_in_table) = true];
extensions 100 to 999;
}
message Class {
enum Kind {
// 3 bits
CLASS = 0;
INTERFACE = 1;
ENUM_CLASS = 2;
ENUM_ENTRY = 3;
ANNOTATION_CLASS = 4;
OBJECT = 5;
COMPANION_OBJECT = 6;
}
/*
hasAnnotations
Visibility
Modality
ClassKind
isInner
isData
isExternal
isExpect
isInline
isFun
*/
optional int32 flags = 1 [default = 6 /* public final class, no annotations */];
required int32 fq_name = 3 [(fq_name_id_in_table) = true];
optional int32 companion_object_name = 4 [(name_id_in_table) = true];
repeated TypeParameter type_parameter = 5;
repeated Type supertype = 6;
repeated int32 supertype_id = 2 [packed = true, (type_id_in_table) = true];
repeated int32 nested_class_name = 7 [packed = true, (name_id_in_table) = true];
repeated Constructor constructor = 8;
repeated Function function = 9;
repeated Property property = 10;
repeated TypeAlias type_alias = 11;
repeated EnumEntry enum_entry = 13;
repeated int32 sealed_subclass_fq_name = 16 [packed = true, (fq_name_id_in_table) = true];
optional TypeTable type_table = 30;
// Index into the VersionRequirementTable
repeated int32 version_requirement = 31;
optional VersionRequirementTable version_requirement_table = 32;
extensions 100 to 18999;
}
message Package {
repeated Function function = 3;
repeated Property property = 4;
repeated TypeAlias type_alias = 5;
optional TypeTable type_table = 30;
optional VersionRequirementTable version_requirement_table = 32;
extensions 100 to 199;
}
message TypeTable {
repeated Type type = 1;
// Index starting from which all types are nullable, or nothing if all types in this table are non-null.
// Note that the 'nullable' field of Type messages is ignored and shouldn't be written because it wastes too much space
optional int32 first_nullable = 2 [default = -1];
option (skip_message_in_comparison) = true;
}
message Constructor {
/*
hasAnnotations
Visibility
isSecondary
hasNonStableParameterNames
*/
optional int32 flags = 1 [default = 6 /* public constructor, no annotations */];
repeated ValueParameter value_parameter = 2;
// Index into the VersionRequirementTable
repeated int32 version_requirement = 31;
extensions 100 to 18999;
}
message Function {
/*
hasAnnotations
Visibility
Modality
MemberKind
isOperator
isInfix
isInline
isTailrec
isExternal
isSuspend
isExpect
hasNonStableParameterNames
*/
optional int32 flags = 9 [default = 6 /* public final function, no annotations */];
optional int32 old_flags = 1 [default = 6];
required int32 name = 2 [(name_id_in_table) = true];
optional Type return_type = 3;
optional int32 return_type_id = 7 [(type_id_in_table) = true];
repeated TypeParameter type_parameter = 4;
optional Type receiver_type = 5;
optional int32 receiver_type_id = 8 [(type_id_in_table) = true];
repeated ValueParameter value_parameter = 6;
optional TypeTable type_table = 30;
// Index into the VersionRequirementTable
repeated int32 version_requirement = 31;
optional Contract contract = 32;
extensions 100 to 18999;
}
message Property {
/*
hasAnnotations
Visibility
Modality
MemberKind
isVar
hasGetter
hasSetter
isConst
isLateinit
hasConstant
isExternal
isDelegated
isExpect
*/
optional int32 flags = 11 [default = 518 /* public (6) final property with getter (512) */];
optional int32 old_flags = 1 [default = 2054];
required int32 name = 2 [(name_id_in_table) = true];
optional Type return_type = 3;
optional int32 return_type_id = 9 [(type_id_in_table) = true];
repeated TypeParameter type_parameter = 4;
optional Type receiver_type = 5;
optional int32 receiver_type_id = 10 [(type_id_in_table) = true];
optional ValueParameter setter_value_parameter = 6;
/*
hasAnnotations
Visibility
Modality
isNotDefault
isExternal
isInline
If getter_flags or setter_flags are absent, their value should be computed as follows:
- hasAnnotations, Visibility, Modality have the same value as in the property flags
- all other flags are false
*/
optional int32 getter_flags = 7;
optional int32 setter_flags = 8;
// Index into the VersionRequirementTable
repeated int32 version_requirement = 31;
extensions 100 to 18999;
}
message ValueParameter {
/*
hasAnnotations
declaresDefault
isCrossinline
isNoinline
*/
optional int32 flags = 1 [default = 0];
required int32 name = 2 [(name_id_in_table) = true];
optional Type type = 3;
optional int32 type_id = 5 [(type_id_in_table) = true];
optional Type vararg_element_type = 4;
optional int32 vararg_element_type_id = 6 [(type_id_in_table) = true];
extensions 100 to 199;
}
message TypeAlias {
/*
hasAnnotations
Visibility
*/
optional int32 flags = 1 [default = 6 /* public, no annotations */];
required int32 name = 2 [(name_id_in_table) = true];
repeated TypeParameter type_parameter = 3;
optional Type underlying_type = 4;
optional int32 underlying_type_id = 5 [(type_id_in_table) = true];
optional Type expanded_type = 6;
optional int32 expanded_type_id = 7 [(type_id_in_table) = true];
repeated Annotation annotation = 8;
// Index into the VersionRequirementTable
repeated int32 version_requirement = 31;
extensions 100 to 199;
}
message EnumEntry {
optional int32 name = 1 [(name_id_in_table) = true];
extensions 100 to 199;
}
enum Modality {
// 2 bits
FINAL = 0;
OPEN = 1;
ABSTRACT = 2;
SEALED = 3;
}
enum Visibility {
// 3 bits
INTERNAL = 0;
PRIVATE = 1;
PROTECTED = 2;
PUBLIC = 3;
PRIVATE_TO_THIS = 4;
LOCAL = 5;
}
enum MemberKind {
// 2 bits
DECLARATION = 0;
FAKE_OVERRIDE = 1;
DELEGATION = 2;
SYNTHESIZED = 3;
}
message VersionRequirement {
enum Level {
WARNING = 0;
ERROR = 1;
HIDDEN = 2;
}
enum VersionKind {
LANGUAGE_VERSION = 0;
COMPILER_VERSION = 1;
API_VERSION = 2;
}
// Kotlin version, since which this declaration is accessible, in the following format (encoded version is "major.minor.patch"):
// (patch << 7) + (minor << 3) + major
// Compilers with version less than this value should report a diagnostic if this declaration is selected as the resolution result
optional int32 version = 1;
// Version in base 256, in case we run out of space to store the version in the optimized form. Has priority over 'version'.
// (patch << 16) + (minor << 8) + major
optional int32 version_full = 2;
// Level of the reported diagnostic
optional Level level = 3 [default = ERROR];
// Error code, to be looked up on the website
optional int32 error_code = 4;
// Diagnostic message
optional int32 message = 5 [(string_id_in_table) = true];
// Which version is this requirement for. For example, if version_kind = API_VERSION, this declaration requires the API version
// (the "-api-version" argument value when compiling the call site) to be of at least the specified value
optional VersionKind version_kind = 6 [default = LANGUAGE_VERSION];
}
message VersionRequirementTable {
repeated VersionRequirement requirement = 1;
}
// A part of the package, which is used to serialize .kjsm/.meta.js, .kotlin_builtins and .kotlin_metadata files.
// Is not used in the JVM back-end
message PackageFragment {
optional StringTable strings = 1;
optional QualifiedNameTable qualified_names = 2;
optional Package package = 3;
repeated Class class = 4;
extensions 100 to 199;
}
message Contract {
repeated Effect effect = 1;
}
message Effect {
// This enum controls which effect this message contains and how 'effectConstructorArguments'
// should be parsed.
// Each enum value documented in the following syntax: "EffectName(arg1: T1, arg2: T2, ...)"
// Those arguments are expected to be found in 'effectConstructorArguments' in exactly the same
// order and amount as defined by signature, otherwise message should be dropped.
enum EffectType {
// Returns(value: ConstantValue?)
RETURNS_CONSTANT = 0;
// CallsInPlace(callable: ParameterReference)
// Additionally, InvocationKind in the field 'kind' may be provided to define exact amount of invocations.
CALLS = 1;
// ReturnsNotNull()
RETURNS_NOT_NULL = 2;
}
optional EffectType effect_type = 1;
repeated Expression effect_constructor_argument = 2;
// If present, then whole message is clause of form 'Effect -> Expression', where 'Effect'
// is given by other fields in this message, and 'Expression' is stored in this field.
optional Expression conclusion_of_conditional_effect = 3;
enum InvocationKind {
AT_MOST_ONCE = 0;
EXACTLY_ONCE = 1;
AT_LEAST_ONCE = 2;
}
optional InvocationKind kind = 4;
}
// We use some trickery to optimize memory footprint of contract-expressions:
// exact type of Expression is determined based on its contents.
message Expression {
/*
isNegated => this expression should be negated
isIsNullPredicate => this expression is IsNullPredicate with 'variableName' as argument
*/
optional int32 flags = 1 [default = 0];
// stored as index in valueParameters list of owner-function in 1-indexation
// Index '0' is reserved for extension receiver
optional int32 value_parameter_reference = 2;
enum ConstantValue {
TRUE = 0;
FALSE = 1;
NULL = 2;
}
optional ConstantValue constant_value = 3;
// present => this expression is IsInstancePredicate, with 'variableName' as LHS
// and with type encoded in either one of next two fields as RHS.
optional Type is_instance_type = 4;
optional int32 is_instance_type_id = 5 [(type_id_in_table) = true];
// non-empty => this expression is boolean formula of form 'andArguments[0] && andArguments[1] && ...'
// Additionally, if first argument of formula is primitive expression (i.e. predicate or value),
// it is optimized and embedded straight into this message
repeated Expression and_argument = 6;
// non-empty => this expression is boolean formula of form 'orArguments[0] || andArguments[1] || ...'
// Additionally, if first argument of formula is primitive expression (i.e. predicate or value),
// it is optimized and embedded straight into this message.
repeated Expression or_argument = 7;
}
