/*** Standard fragments ***/

/** Files and folders **/

@location = @location_default;

locations_default(unique int id: @location_default,

int file: @file ref,

int beginLine: int ref,

int beginColumn: int ref,

int endLine: int ref,

int endColumn: int ref

);

@sourceline = @locatable;

numlines(int element_id: @sourceline ref,

int num_lines: int ref,

int num_code: int ref,

int num_comment: int ref

);

files(unique int id: @file,

varchar(900) name: string ref);

folders(unique int id: @folder,

varchar(900) name: string ref);

@container = @folder | @file ;

containerparent(int parent: @container ref,

unique int child: @container ref);

/** Duplicate code **/

duplicateCode(

unique int id : @duplication,

varchar(900) relativePath : string ref,

int equivClass : int ref);

similarCode(

unique int id : @similarity,

varchar(900) relativePath : string ref,

int equivClass : int ref);

@duplication_or_similarity = @duplication | @similarity;

tokens(

int id : @duplication_or_similarity ref,

int offset : int ref,

int beginLine : int ref,

int beginColumn : int ref,

int endLine : int ref,

int endColumn : int ref);

/** External data **/

externalData(

int id : @externalDataElement,

varchar(900) path : string ref,

int column: int ref,

varchar(900) value : string ref

);

snapshotDate(unique date snapshotDate : date ref);

sourceLocationPrefix(varchar(900) prefix : string ref);

/** Version control data **/

svnentries(

int id : @svnentry,

varchar(500) revision : string ref,

varchar(500) author : string ref,

date revisionDate : date ref,

int changeSize : int ref

);

svnaffectedfiles(

int id : @svnentry ref,

int file : @file ref,

varchar(500) action : string ref

);

svnentrymsg(

int id : @svnentry ref,

varchar(500) message : string ref

);

svnchurn(

int commit : @svnentry ref,

int file : @file ref,

int addedLines : int ref,

int deletedLines : int ref

);

/*** JavaScript-specific part ***/

filetype(

int file: @file ref,

string filetype: string ref

)

// top-level code fragments

toplevels (unique int id: @toplevel,

int kind: int ref);

is_externs (int toplevel: @toplevel ref);

case @toplevel.kind of

0 = @script

| 1 = @inline_script

| 2 = @event_handler

| 3 = @javascript_url

| 4 = @template_toplevel;

is_module (int tl: @toplevel ref);

is_nodejs (int tl: @toplevel ref);

is_es2015_module (int tl: @toplevel ref);

is_closure_module (int tl: @toplevel ref);

@xml_node_with_code = @xmlelement | @xmlattribute | @template_placeholder_tag;

toplevel_parent_xml_node(

unique int toplevel: @toplevel ref,

int xmlnode: @xml_node_with_code ref);

xml_element_parent_expression(

unique int xmlnode: @xmlelement ref,

int expression: @expr ref,

int index: int ref);

// statements

#keyset[parent, idx]

stmts (unique int id: @stmt,

int kind: int ref,

int parent: @stmt_parent ref,

int idx: int ref,

varchar(900) tostring: string ref);

stmt_containers (unique int stmt: @stmt ref,

int container: @stmt_container ref);

jump_targets (unique int jump: @stmt ref,

int target: @stmt ref);

@stmt_parent = @stmt | @toplevel | @function_expr | @arrow_function_expr | @static_initializer;

@stmt_container = @toplevel | @function | @namespace_declaration | @external_module_declaration | @global_augmentation_declaration;

case @stmt.kind of

0 = @empty_stmt

| 1 = @block_stmt

| 2 = @expr_stmt

| 3 = @if_stmt

| 4 = @labeled_stmt

| 5 = @break_stmt

| 6 = @continue_stmt

| 7 = @with_stmt

| 8 = @switch_stmt

| 9 = @return_stmt

| 10 = @throw_stmt

| 11 = @try_stmt

| 12 = @while_stmt

| 13 = @do_while_stmt

| 14 = @for_stmt

| 15 = @for_in_stmt

| 16 = @debugger_stmt

| 17 = @function_decl_stmt

| 18 = @var_decl_stmt

| 19 = @case

| 20 = @catch_clause

| 21 = @for_of_stmt

| 22 = @const_decl_stmt

| 23 = @let_stmt

| 24 = @legacy_let_stmt

| 25 = @for_each_stmt

| 26 = @class_decl_stmt

| 27 = @import_declaration

| 28 = @export_all_declaration

| 29 = @export_default_declaration

| 30 = @export_named_declaration

| 31 = @namespace_declaration

| 32 = @import_equals_declaration

| 33 = @export_assign_declaration

| 34 = @interface_declaration

| 35 = @type_alias_declaration

| 36 = @enum_declaration

| 37 = @external_module_declaration

| 38 = @export_as_namespace_declaration

| 39 = @global_augmentation_declaration

;

@decl_stmt = @var_decl_stmt | @const_decl_stmt | @let_stmt | @legacy_let_stmt;

@export_declaration = @export_all_declaration | @export_default_declaration | @export_named_declaration;

@namespace_definition = @namespace_declaration | @enum_declaration;

@type_definition = @class_definition | @interface_declaration | @enum_declaration | @type_alias_declaration | @enum_member;

is_instantiated(unique int decl: @namespace_declaration ref);

@declarable_node = @decl_stmt | @namespace_declaration | @class_decl_stmt | @function_decl_stmt | @enum_declaration | @external_module_declaration | @global_augmentation_declaration | @field;

has_declare_keyword(unique int stmt: @declarable_node ref);

is_for_await_of(unique int forof: @for_of_stmt ref);

// expressions

#keyset[parent, idx]

exprs (unique int id: @expr,

int kind: int ref,

int parent: @expr_parent ref,

int idx: int ref,

varchar(900) tostring: string ref);

literals (varchar(900) value: string ref,

varchar(900) raw: string ref,

unique int expr: @expr_or_type ref);

enclosing_stmt (unique int expr: @expr_or_type ref,

int stmt: @stmt ref);

expr_containers (unique int expr: @expr_or_type ref,

int container: @stmt_container ref);

array_size (unique int ae: @arraylike ref,

int sz: int ref);

is_delegating (int yield: @yield_expr ref);

@expr_or_stmt = @expr | @stmt;

@expr_or_type = @expr | @typeexpr;

@expr_parent = @expr_or_stmt | @property | @function_typeexpr;

@arraylike = @array_expr | @array_pattern;

@type_annotation = @typeexpr | @jsdoc_type_expr;

@node_in_stmt_container = @cfg_node | @type_annotation | @toplevel;

case @expr.kind of

0 = @label

| 1 = @null_literal

| 2 = @boolean_literal

| 3 = @number_literal

| 4 = @string_literal

| 5 = @regexp_literal

| 6 = @this_expr

| 7 = @array_expr

| 8 = @obj_expr

| 9 = @function_expr

| 10 = @seq_expr

| 11 = @conditional_expr

| 12 = @new_expr

| 13 = @call_expr

| 14 = @dot_expr

| 15 = @index_expr

| 16 = @neg_expr

| 17 = @plus_expr

| 18 = @log_not_expr

| 19 = @bit_not_expr

| 20 = @typeof_expr

| 21 = @void_expr

| 22 = @delete_expr

| 23 = @eq_expr

| 24 = @neq_expr

| 25 = @eqq_expr

| 26 = @neqq_expr

| 27 = @lt_expr

| 28 = @le_expr

| 29 = @gt_expr

| 30 = @ge_expr

| 31 = @lshift_expr

| 32 = @rshift_expr

| 33 = @urshift_expr

| 34 = @add_expr

| 35 = @sub_expr

| 36 = @mul_expr

| 37 = @div_expr

| 38 = @mod_expr

| 39 = @bitor_expr

| 40 = @xor_expr

| 41 = @bitand_expr

| 42 = @in_expr

| 43 = @instanceof_expr

| 44 = @logand_expr

| 45 = @logor_expr

| 47 = @assign_expr

| 48 = @assign_add_expr

| 49 = @assign_sub_expr

| 50 = @assign_mul_expr

| 51 = @assign_div_expr

| 52 = @assign_mod_expr

| 53 = @assign_lshift_expr

| 54 = @assign_rshift_expr

| 55 = @assign_urshift_expr

| 56 = @assign_or_expr

| 57 = @assign_xor_expr

| 58 = @assign_and_expr

| 59 = @preinc_expr

| 60 = @postinc_expr

| 61 = @predec_expr

| 62 = @postdec_expr

| 63 = @par_expr

| 64 = @var_declarator

| 65 = @arrow_function_expr

| 66 = @spread_element

| 67 = @array_pattern

| 68 = @object_pattern

| 69 = @yield_expr

| 70 = @tagged_template_expr

| 71 = @template_literal

| 72 = @template_element

| 73 = @array_comprehension_expr

| 74 = @generator_expr

| 75 = @for_in_comprehension_block

| 76 = @for_of_comprehension_block

| 77 = @legacy_letexpr

| 78 = @var_decl

| 79 = @proper_varaccess

| 80 = @class_expr

| 81 = @super_expr

| 82 = @newtarget_expr

| 83 = @named_import_specifier

| 84 = @import_default_specifier

| 85 = @import_namespace_specifier

| 86 = @named_export_specifier

| 87 = @exp_expr

| 88 = @assign_exp_expr

| 89 = @jsx_element

| 90 = @jsx_qualified_name

| 91 = @jsx_empty_expr

| 92 = @await_expr

| 93 = @function_sent_expr

| 94 = @decorator

| 95 = @export_default_specifier

| 96 = @export_namespace_specifier

| 97 = @bind_expr

| 98 = @external_module_reference

| 99 = @dynamic_import

| 100 = @expression_with_type_arguments

| 101 = @prefix_type_assertion

| 102 = @as_type_assertion

| 103 = @export_varaccess

| 104 = @decorator_list

| 105 = @non_null_assertion

| 106 = @bigint_literal

| 107 = @nullishcoalescing_expr

| 108 = @e4x_xml_anyname

| 109 = @e4x_xml_static_attribute_selector

| 110 = @e4x_xml_dynamic_attribute_selector

| 111 = @e4x_xml_filter_expression

| 112 = @e4x_xml_static_qualident

| 113 = @e4x_xml_dynamic_qualident

| 114 = @e4x_xml_dotdotexpr

| 115 = @import_meta_expr

| 116 = @assignlogandexpr

| 117 = @assignlogorexpr

| 118 = @assignnullishcoalescingexpr

| 119 = @template_pipe_ref

| 120 = @generated_code_expr

;

@varaccess = @proper_varaccess | @export_varaccess;

@varref = @var_decl | @varaccess;

@identifier = @label | @varref | @type_identifier;

@literal = @null_literal | @boolean_literal | @number_literal | @string_literal | @regexp_literal | @bigint_literal;

@propaccess = @dot_expr | @index_expr;

@invokeexpr = @new_expr | @call_expr;

@unaryexpr = @neg_expr | @plus_expr | @log_not_expr | @bit_not_expr | @typeof_expr | @void_expr | @delete_expr | @spread_element;

@equality_test = @eq_expr | @neq_expr | @eqq_expr | @neqq_expr;

@comparison = @equality_test | @lt_expr | @le_expr | @gt_expr | @ge_expr;

@binaryexpr = @comparison | @lshift_expr | @rshift_expr | @urshift_expr | @add_expr | @sub_expr | @mul_expr | @div_expr | @mod_expr | @exp_expr | @bitor_expr | @xor_expr | @bitand_expr | @in_expr | @instanceof_expr | @logand_expr | @logor_expr | @nullishcoalescing_expr;

@assignment = @assign_expr | @assign_add_expr | @assign_sub_expr | @assign_mul_expr | @assign_div_expr | @assign_mod_expr | @assign_exp_expr | @assign_lshift_expr | @assign_rshift_expr | @assign_urshift_expr | @assign_or_expr | @assign_xor_expr | @assign_and_expr | @assignlogandexpr | @assignlogorexpr | @assignnullishcoalescingexpr;

@updateexpr = @preinc_expr | @postinc_expr | @predec_expr | @postdec_expr;

@pattern = @varref | @array_pattern | @object_pattern;

@comprehension_expr = @array_comprehension_expr | @generator_expr;

@comprehension_block = @for_in_comprehension_block | @for_of_comprehension_block;

@import_specifier = @named_import_specifier | @import_default_specifier | @import_namespace_specifier;

@exportspecifier = @named_export_specifier | @export_default_specifier | @export_namespace_specifier;

@type_keyword_operand = @import_declaration | @export_declaration | @import_specifier;

@type_assertion = @as_type_assertion | @prefix_type_assertion;

@class_definition = @class_decl_stmt | @class_expr;

@interface_definition = @interface_declaration | @interface_typeexpr;

@class_or_interface = @class_definition | @interface_definition;

@lexical_decl = @var_decl | @type_decl;

@lexical_access = @varaccess | @local_type_access | @local_var_type_access | @local_namespace_access;

@lexical_ref = @lexical_decl | @lexical_access;

@e4x_xml_attribute_selector = @e4x_xml_static_attribute_selector | @e4x_xml_dynamic_attribute_selector;

@e4x_xml_qualident = @e4x_xml_static_qualident | @e4x_xml_dynamic_qualident;

expr_contains_template_tag_location(

int expr: @expr ref,

int location: @location ref

);

@template_placeholder_tag_parent = @xmlelement | @xmlattribute | @file;

template_placeholder_tag_info(

unique int node: @template_placeholder_tag,

int parentNode: @template_placeholder_tag_parent ref,

varchar(900) raw: string ref

);

// scopes

scopes (unique int id: @scope,

int kind: int ref);

case @scope.kind of

0 = @global_scope

| 1 = @function_scope

| 2 = @catch_scope

| 3 = @module_scope

| 4 = @block_scope

| 5 = @for_scope

| 6 = @for_in_scope // for-of scopes work the same as for-in scopes

| 7 = @comprehension_block_scope

| 8 = @class_expr_scope

| 9 = @namespace_scope

| 10 = @class_decl_scope

| 11 = @interface_scope

| 12 = @type_alias_scope

| 13 = @mapped_type_scope

| 14 = @enum_scope

| 15 = @external_module_scope

| 16 = @conditional_type_scope;

scopenodes (unique int node: @ast_node ref,

int scope: @scope ref);

scopenesting (unique int inner: @scope ref,

int outer: @scope ref);

// functions

@function = @function_decl_stmt | @function_expr | @arrow_function_expr;

@parameterized = @function | @catch_clause;

@type_parameterized = @function | @class_or_interface | @type_alias_declaration | @mapped_typeexpr | @infer_typeexpr;

is_generator (int fun: @function ref);

has_rest_parameter (int fun: @function ref);

is_async (int fun: @function ref);

// variables and lexically scoped type names

#keyset[scope, name]

variables (unique int id: @variable,

varchar(900) name: string ref,

int scope: @scope ref);

#keyset[scope, name]

local_type_names (unique int id: @local_type_name,

varchar(900) name: string ref,

int scope: @scope ref);

#keyset[scope, name]

local_namespace_names (unique int id: @local_namespace_name,

varchar(900) name: string ref,

int scope: @scope ref);

is_arguments_object (int id: @variable ref);

@lexical_name = @variable | @local_type_name | @local_namespace_name;

@bind_id = @varaccess | @local_var_type_access;

bind (unique int id: @bind_id ref,

int decl: @variable ref);

decl (unique int id: @var_decl ref,

int decl: @variable ref);

@typebind_id = @local_type_access | @export_varaccess;

typebind (unique int id: @typebind_id ref,

int decl: @local_type_name ref);

@typedecl_id = @type_decl | @var_decl;

typedecl (unique int id: @typedecl_id ref,

int decl: @local_type_name ref);

namespacedecl (unique int id: @var_decl ref,

int decl: @local_namespace_name ref);

@namespacebind_id = @local_namespace_access | @export_varaccess;

namespacebind (unique int id: @namespacebind_id ref,

int decl: @local_namespace_name ref);

// properties in object literals, property patterns in object patterns, and method declarations in classes

#keyset[parent, index]

properties (unique int id: @property,

int parent: @property_parent ref,

int index: int ref,

int kind: int ref,

varchar(900) tostring: string ref);

case @property.kind of

0 = @value_property

| 1 = @property_getter

| 2 = @property_setter

| 3 = @jsx_attribute

| 4 = @function_call_signature

| 5 = @constructor_call_signature

| 6 = @index_signature

| 7 = @enum_member

| 8 = @proper_field

| 9 = @parameter_field

| 10 = @static_initializer

;

@property_parent = @obj_expr | @object_pattern | @class_definition | @jsx_element | @interface_definition | @enum_declaration;

@property_accessor = @property_getter | @property_setter;

@call_signature = @function_call_signature | @constructor_call_signature;

@field = @proper_field | @parameter_field;

@field_or_vardeclarator = @field | @var_declarator;

is_computed (int id: @property ref);

is_method (int id: @property ref);

is_static (int id: @property ref);

is_abstract_member (int id: @property ref);

is_const_enum (int id: @enum_declaration ref);

is_abstract_class (int id: @class_decl_stmt ref);

has_public_keyword (int id: @property ref);

has_private_keyword (int id: @property ref);

has_protected_keyword (int id: @property ref);

has_readonly_keyword (int id: @property ref);

has_type_keyword (int id: @type_keyword_operand ref);

is_optional_member (int id: @property ref);

has_definite_assignment_assertion (int id: @field_or_vardeclarator ref);

is_optional_parameter_declaration (unique int parameter: @pattern ref);

#keyset[constructor, param_index]

parameter_fields(

unique int field: @parameter_field ref,

int constructor: @function_expr ref,

int param_index: int ref

);

// types

#keyset[parent, idx]

typeexprs (

unique int id: @typeexpr,

int kind: int ref,

int parent: @typeexpr_parent ref,

int idx: int ref,

varchar(900) tostring: string ref

);

case @typeexpr.kind of

0 = @local_type_access

| 1 = @type_decl

| 2 = @keyword_typeexpr

| 3 = @string_literal_typeexpr

| 4 = @number_literal_typeexpr

| 5 = @boolean_literal_typeexpr

| 6 = @array_typeexpr

| 7 = @union_typeexpr

| 8 = @indexed_access_typeexpr

| 9 = @intersection_typeexpr

| 10 = @parenthesized_typeexpr

| 11 = @tuple_typeexpr

| 12 = @keyof_typeexpr

| 13 = @qualified_type_access

| 14 = @generic_typeexpr

| 15 = @type_label

| 16 = @typeof_typeexpr

| 17 = @local_var_type_access

| 18 = @qualified_var_type_access

| 19 = @this_var_type_access

| 20 = @predicate_typeexpr

| 21 = @interface_typeexpr

| 22 = @type_parameter

| 23 = @plain_function_typeexpr

| 24 = @constructor_typeexpr

| 25 = @local_namespace_access

| 26 = @qualified_namespace_access

| 27 = @mapped_typeexpr

| 28 = @conditional_typeexpr

| 29 = @infer_typeexpr

| 30 = @import_type_access

| 31 = @import_namespace_access

| 32 = @import_var_type_access

| 33 = @optional_typeexpr

| 34 = @rest_typeexpr

| 35 = @bigint_literal_typeexpr

| 36 = @readonly_typeexpr

| 37 = @template_literal_typeexpr

;

@typeref = @typeaccess | @type_decl;

@type_identifier = @type_decl | @local_type_access | @type_label | @local_var_type_access | @local_namespace_access;

@typeexpr_parent = @expr | @stmt | @property | @typeexpr;

@literal_typeexpr = @string_literal_typeexpr | @number_literal_typeexpr | @boolean_literal_typeexpr | @bigint_literal_typeexpr;

@typeaccess = @local_type_access | @qualified_type_access | @import_type_access;

@vartypeaccess = @local_var_type_access | @qualified_var_type_access | @this_var_type_access | @import_var_type_access;

@namespace_access = @local_namespace_access | @qualified_namespace_access | @import_namespace_access;

@import_typeexpr = @import_type_access | @import_namespace_access | @import_var_type_access;

@function_typeexpr = @plain_function_typeexpr | @constructor_typeexpr;

// types

types (

unique int id: @type,

int kind: int ref,

varchar(900) tostring: string ref

);

#keyset[parent, idx]

type_child (

int child: @type ref,

int parent: @type ref,

int idx: int ref

);

case @type.kind of

0 = @any_type

| 1 = @string_type

| 2 = @number_type

| 3 = @union_type

| 4 = @true_type

| 5 = @false_type

| 6 = @type_reference

| 7 = @object_type

| 8 = @canonical_type_variable_type

| 9 = @typeof_type

| 10 = @void_type

| 11 = @undefined_type

| 12 = @null_type

| 13 = @never_type

| 14 = @plain_symbol_type

| 15 = @unique_symbol_type

| 16 = @objectkeyword_type

| 17 = @intersection_type

| 18 = @tuple_type

| 19 = @lexical_type_variable_type

| 20 = @this_type

| 21 = @number_literal_type

| 22 = @string_literal_type

| 23 = @unknown_type

| 24 = @bigint_type

| 25 = @bigint_literal_type

;

@boolean_literal_type = @true_type | @false_type;

@symbol_type = @plain_symbol_type | @unique_symbol_type;

@union_or_intersection_type = @union_type | @intersection_type;

@typevariable_type = @canonical_type_variable_type | @lexical_type_variable_type;

has_asserts_keyword(int node: @predicate_typeexpr ref);

@typed_ast_node = @expr | @typeexpr | @function;

ast_node_type(

unique int node: @typed_ast_node ref,

int typ: @type ref);

declared_function_signature(

unique int node: @function ref,

int sig: @signature_type ref

);

invoke_expr_signature(

unique int node: @invokeexpr ref,

int sig: @signature_type ref

);

invoke_expr_overload_index(

unique int node: @invokeexpr ref,

int index: int ref

);

symbols (

unique int id: @symbol,

int kind: int ref,

varchar(900) name: string ref

);

symbol_parent (

unique int symbol: @symbol ref,

int parent: @symbol ref

);

symbol_module (

int symbol: @symbol ref,

varchar(900) moduleName: string ref

);

symbol_global (

int symbol: @symbol ref,

varchar(900) globalName: string ref

);

case @symbol.kind of

0 = @root_symbol

| 1 = @member_symbol

| 2 = @other_symbol

;

@type_with_symbol = @type_reference | @typevariable_type | @typeof_type | @unique_symbol_type;

@ast_node_with_symbol = @type_definition | @namespace_definition | @toplevel | @typeaccess | @namespace_access | @var_decl | @function | @invokeexpr | @import_declaration | @external_module_reference;

ast_node_symbol(

unique int node: @ast_node_with_symbol ref,

int symbol: @symbol ref);

type_symbol(

unique int typ: @type_with_symbol ref,

int symbol: @symbol ref);

#keyset[typ, name]

type_property(

int typ: @type ref,

varchar(900) name: string ref,

int propertyType: @type ref);

type_alias(

unique int aliasType: @type ref,

int underlyingType: @type ref);

@literal_type = @string_literal_type | @number_literal_type | @boolean_literal_type | @bigint_literal_type;

@type_with_literal_value = @string_literal_type | @number_literal_type | @bigint_literal_type;

type_literal_value(

unique int typ: @type_with_literal_value ref,

varchar(900) value: string ref);

signature_types (

unique int id: @signature_type,

int kind: int ref,

varchar(900) tostring: string ref,

int type_parameters: int ref,

int required_params: int ref

);

is_abstract_signature(

unique int sig: @signature_type ref

);

signature_rest_parameter(

unique int sig: @signature_type ref,

int rest_param_arra_type: @type ref

);

case @signature_type.kind of

0 = @function_signature_type

| 1 = @constructor_signature_type

;

#keyset[typ, kind, index]

type_contains_signature (

int typ: @type ref,

int kind: int ref, // constructor/call/index

int index: int ref, // ordering of overloaded signatures

int sig: @signature_type ref

);

#keyset[parent, index]

signature_contains_type (

int child: @type ref,

int parent: @signature_type ref,

int index: int ref

);

#keyset[sig, index]

signature_parameter_name (

int sig: @signature_type ref,

int index: int ref,

varchar(900) name: string ref

);

number_index_type (

unique int baseType: @type ref,

int propertyType: @type ref

);

string_index_type (

unique int baseType: @type ref,

int propertyType: @type ref

);

base_type_names(

int typeName: @symbol ref,

int baseTypeName: @symbol ref

);

self_types(

int typeName: @symbol ref,

int selfType: @type_reference ref

);

tuple_type_min_length(

unique int typ: @type ref,

int minLength: int ref

);

tuple_type_rest_index(

unique int typ: @type ref,

int index: int ref

);

// comments

comments (unique int id: @comment,

int kind: int ref,

int toplevel: @toplevel ref,

varchar(900) text: string ref,

varchar(900) tostring: string ref);

case @comment.kind of

0 = @slashslash_comment

| 1 = @slashstar_comment

| 2 = @doc_comment

| 3 = @html_comment_start

| 4 = @htmlcommentend;

@html_comment = @html_comment_start | @htmlcommentend;

@line_comment = @slashslash_comment | @html_comment;

@block_comment = @slashstar_comment | @doc_comment;

// source lines

lines (unique int id: @line,

int toplevel: @toplevel ref,

varchar(900) text: string ref,

varchar(2) terminator: string ref);

indentation (int file: @file ref,

int lineno: int ref,

varchar(1) indentChar: string ref,

int indentDepth: int ref);

// JavaScript parse errors

js_parse_errors (unique int id: @js_parse_error,

int toplevel: @toplevel ref,

varchar(900) message: string ref,

varchar(900) line: string ref);

// regular expressions

#keyset[parent, idx]

regexpterm (unique int id: @regexpterm,

int kind: int ref,

int parent: @regexpparent ref,

int idx: int ref,

varchar(900) tostring: string ref);

@regexpparent = @regexpterm | @regexp_literal | @string_literal | @add_expr;

case @regexpterm.kind of

0 = @regexp_alt

| 1 = @regexp_seq

| 2 = @regexp_caret

| 3 = @regexp_dollar

| 4 = @regexp_wordboundary

| 5 = @regexp_nonwordboundary

| 6 = @regexp_positive_lookahead

| 7 = @regexp_negative_lookahead

| 8 = @regexp_star

| 9 = @regexp_plus

| 10 = @regexp_opt

| 11 = @regexp_range

| 12 = @regexp_dot

| 13 = @regexp_group

| 14 = @regexp_normal_constant

| 15 = @regexp_hex_escape

| 16 = @regexp_unicode_escape

| 17 = @regexp_dec_escape

| 18 = @regexp_oct_escape

| 19 = @regexp_ctrl_escape

| 20 = @regexp_char_class_escape

| 21 = @regexp_id_escape

| 22 = @regexp_backref

| 23 = @regexp_char_class

| 24 = @regexp_char_range

| 25 = @regexp_positive_lookbehind

| 26 = @regexp_negative_lookbehind

| 27 = @regexp_unicode_property_escape;

regexp_parse_errors (unique int id: @regexp_parse_error,

int regexp: @regexpterm ref,

varchar(900) message: string ref);

@regexp_quantifier = @regexp_star | @regexp_plus | @regexp_opt | @regexp_range;

@regexp_escape = @regexp_char_escape | @regexp_char_class_escape | @regexp_unicode_property_escape;

@regexp_char_escape = @regexp_hex_escape | @regexp_unicode_escape | @regexp_dec_escape | @regexp_oct_escape | @regexp_ctrl_escape | @regexp_id_escape;

@regexp_constant = @regexp_normal_constant | @regexp_char_escape;

@regexp_lookahead = @regexp_positive_lookahead | @regexp_negative_lookahead;

@regexp_lookbehind = @regexp_positive_lookbehind | @regexp_negative_lookbehind;

@regexp_subpattern = @regexp_lookahead | @regexp_lookbehind;

@regexp_anchor = @regexp_dollar | @regexp_caret;

is_greedy (int id: @regexp_quantifier ref);

range_quantifier_lower_bound (unique int id: @regexp_range ref, int lo: int ref);

range_quantifier_upper_bound (unique int id: @regexp_range ref, int hi: int ref);

is_capture (unique int id: @regexp_group ref, int number: int ref);

is_named_capture (unique int id: @regexp_group ref, string name: string ref);

is_inverted (int id: @regexp_char_class ref);

regexp_const_value (unique int id: @regexp_constant ref, varchar(1) value: string ref);

char_class_escape (unique int id: @regexp_char_class_escape ref, varchar(1) value: string ref);

backref (unique int id: @regexp_backref ref, int value: int ref);

named_backref (unique int id: @regexp_backref ref, string name: string ref);

unicode_property_escapename (unique int id: @regexp_unicode_property_escape ref, string name: string ref);

unicode_property_escapevalue (unique int id: @regexp_unicode_property_escape ref, string value: string ref);

// tokens

#keyset[toplevel, idx]

tokeninfo (unique int id: @token,

int kind: int ref,

int toplevel: @toplevel ref,

int idx: int ref,

varchar(900) value: string ref);

case @token.kind of

0 = @token_eof

| 1 = @token_null_literal

| 2 = @token_boolean_literal

| 3 = @token_numeric_literal

| 4 = @token_string_literal

| 5 = @token_regular_expression

| 6 = @token_identifier

| 7 = @token_keyword

| 8 = @token_punctuator;

// associate comments with the token immediately following them (which may be EOF)

next_token (int comment: @comment ref, int token: @token ref);

// JSON

#keyset[parent, idx]

json (unique int id: @json_value,

int kind: int ref,

int parent: @json_parent ref,

int idx: int ref,

varchar(900) tostring: string ref);

json_literals (varchar(900) value: string ref,

varchar(900) raw: string ref,

unique int expr: @json_value ref);

json_properties (int obj: @json_object ref,

varchar(900) property: string ref,

int value: @json_value ref);

json_errors (unique int id: @json_parse_error,

varchar(900) message: string ref);

json_locations(unique int locatable: @json_locatable ref,

int location: @location_default ref);

case @json_value.kind of

0 = @json_null

| 1 = @json_boolean

| 2 = @json_number

| 3 = @json_string

| 4 = @json_array

| 5 = @json_object;

@json_parent = @json_object | @json_array | @file;

@json_locatable = @json_value | @json_parse_error;

// locations

@ast_node = @toplevel | @stmt | @expr | @property | @typeexpr;

@locatable = @file

| @ast_node

| @comment

| @line

| @js_parse_error | @regexp_parse_error

| @regexpterm

| @json_locatable

| @token

| @cfg_node

| @jsdoc | @jsdoc_type_expr | @jsdoc_tag

| @yaml_locatable

| @xmllocatable

| @configLocatable

| @template_placeholder_tag;

hasLocation (unique int locatable: @locatable ref,

int location: @location ref);

// CFG

entry_cfg_node (unique int id: @entry_node, int container: @stmt_container ref);

exit_cfg_node (unique int id: @exit_node, int container: @stmt_container ref);

guard_node (unique int id: @guard_node, int kind: int ref, int test: @expr ref);

case @guard_node.kind of

0 = @falsy_guard

| 1 = @truthy_guard;

@condition_guard = @falsy_guard | @truthy_guard;