schema

package
v0.383.0 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Oct 15, 2024 License: Apache-2.0 Imports: 34 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	DefaultRetryCount  = 10
	MinBackoffLimitStr = "1s"
	MinBackoffLimit    = 1 * time.Second
	DefaultMaxBackoff  = 1 * time.Hour
	MaxBackoffLimitStr = "1d"
	MaxBackoffLimit    = 24 * time.Hour
)
View Source 
const BuiltinsSource = `` /* 830-byte string literal not displayed */

BuiltinsSource is the schema source code for built-in types.

View Source 
const PostgresDatabaseType = "postgres"

Variables

View Source 
var ErrNotFound = errors.New("not found")
View Source 
var (
	Lexer = lexer.MustSimple([]lexer.SimpleRule{
		{Name: "EOL", Pattern: `[\r\n]`},
		{Name: "Whitespace", Pattern: `\s+`},
		{Name: "Ident", Pattern: `\b[a-zA-Z_][a-zA-Z0-9_]*\b`},
		{Name: "Comment", Pattern: `//.*`},
		{Name: "String", Pattern: `"(?:\\.|[^"])*"`},
		{Name: "Number", Pattern: `[0-9]+(?:\.[0-9]+)?`},
		{Name: "Punct", Pattern: `[%/\-\_:[\]{}<>()*+?.,\\^$|#~!\'@=]`},
	})
)

Functions

func AliasKindStrings 

func AliasKindStrings() []string

AliasKindStrings returns a slice of all String values of the enum

func EncodeComments 

func EncodeComments(comments []string) string

func ModuleToBytes 

func ModuleToBytes(m *Module) ([]byte, error)

func Normalise 

func Normalise[T Node](n T) T

Normalise clones and normalises (zeroes) positional information in schema Nodes.

func RequestResponseToJSONSchema 

func RequestResponseToJSONSchema(sch *Schema, ref Ref) (*jsonschema.Schema, error)

RequestResponseToJSONSchema converts the schema for a Verb request or response object to a JSON Schema.

It takes in the full schema in order to resolve and define references.

func SortModuleDecls 

func SortModuleDecls(module *Module)

SortModuleDecls sorts the declarations in a module.

func TransformAliasedFields 

func TransformAliasedFields(sch *Schema, t Type, obj any, aliaser func(obj map[string]any, field *Field) string) error

func TransformFromAliasedFields 

func TransformFromAliasedFields(ref *Ref, sch *Schema, request map[string]any) (map[string]any, error)

func TransformToAliasedFields 

func TransformToAliasedFields(ref *Ref, sch *Schema, request map[string]any) (map[string]any, error)

func TypeName 

func TypeName(v any) string

TypeName returns the name of a type as a string, stripping any package prefix and correctly handling Ref aliases.

func TypeToProto 

func TypeToProto(t Type) *schemapb.Type

TypeToProto creates a schemapb.Type "sum type" from a concreate Type.

func ValidateJSONValue 

func ValidateJSONValue(fieldType Type, path path, value any, sch *Schema, opts ...EncodingOption) error

ValidateJSONValue validates a given JSON value against the provided schema.

func ValidateModule 

func ValidateModule(module *Module) error

ValidateModule performs the subset of semantic validation possible on a single module.

It ignores references to other modules.

func ValidateName 

func ValidateName(name string) bool

ValidateName validates an FTL name.

func ValidateRequestMap 

func ValidateRequestMap(ref *Ref, path path, request map[string]any, sch *Schema, opts ...EncodingOption) error

ValidateRequestMap validates a given JSON map against the provided schema.

func Visit 

func Visit(n Node, visit func(n Node, next func() error) error) error

Visit all nodes in the schema.

func VisitExcludingMetadataChildren 

func VisitExcludingMetadataChildren(n Node, visit func(n Node, next func() error) error) error

VisitExcludingMetadataChildren visits all nodes in the schema except the children of metadata nodes. This is used when generating external modules to avoid adding imports only referenced in the bodies of stubbed verbs.

func VisitWithParent 

func VisitWithParent(n Node, parent Node, visit func(n Node, parent Node, next func() error) error) error

VisitWithParent all nodes in the schema providing the parent node when visiting its schema children.

Types

type AliasKind 

type AliasKind int

AliasKind is the kind of alias. 

const (
	AliasKindJson AliasKind = iota //nolint
)

func AliasKindString 

func AliasKindString(s string) (AliasKind, error)

AliasKindString retrieves an enum value from the enum constants string name. Throws an error if the param is not part of the enum.

func AliasKindValues 

func AliasKindValues() []AliasKind

AliasKindValues returns all values of the enum

func (AliasKind) IsAAliasKind 

func (i AliasKind) IsAAliasKind() bool

IsAAliasKind returns "true" if the value is listed in the enum definition. "false" otherwise

func (AliasKind) MarshalJSON 

func (i AliasKind) MarshalJSON() ([]byte, error)

MarshalJSON implements the json.Marshaler interface for AliasKind

func (AliasKind) MarshalText 

func (i AliasKind) MarshalText() ([]byte, error)

MarshalText implements the encoding.TextMarshaler interface for AliasKind

func (AliasKind) String 

func (i AliasKind) String() string

func (*AliasKind) UnmarshalJSON 

func (i *AliasKind) UnmarshalJSON(data []byte) error

UnmarshalJSON implements the json.Unmarshaler interface for AliasKind

func (*AliasKind) UnmarshalText 

func (i *AliasKind) UnmarshalText(text []byte) error

UnmarshalText implements the encoding.TextUnmarshaler interface for AliasKind

type Any 

type Any struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Any bool `parser:"@'Any'" protobuf:"-"`
}

func (*Any) Equal 

func (*Any) Equal(other Type) bool

func (*Any) GetName 

func (*Any) GetName() string

func (*Any) Position 

func (a *Any) Position() Position

func (*Any) String 

func (*Any) String() string

func (*Any) ToProto 

func (a *Any) ToProto() proto.Message

type Array 

type Array struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Element Type `parser:"'[' @@ ']'" protobuf:"2"`
}

func (*Array) Equal 

func (a *Array) Equal(other Type) bool

func (*Array) Position 

func (a *Array) Position() Position

func (*Array) String 

func (a *Array) String() string

func (*Array) ToProto 

func (a *Array) ToProto() proto.Message

type Bool 

type Bool struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Bool bool `parser:"@'Bool'" protobuf:"-"`
}

func (*Bool) Equal 

func (b *Bool) Equal(other Type) bool

func (*Bool) GetName 

func (*Bool) GetName() string

func (*Bool) Position 

func (b *Bool) Position() Position

func (*Bool) String 

func (*Bool) String() string

func (*Bool) ToProto 

func (b *Bool) ToProto() proto.Message

type Bytes 

type Bytes struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Bytes bool `parser:"@'Bytes'" protobuf:"-"`
}

func (*Bytes) Equal 

func (b *Bytes) Equal(other Type) bool

func (*Bytes) GetName 

func (*Bytes) GetName() string

func (*Bytes) Position 

func (b *Bytes) Position() Position

func (*Bytes) String 

func (*Bytes) String() string

func (*Bytes) ToProto 

func (b *Bytes) ToProto() proto.Message

type Config 

type Config struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Comments []string `parser:"@Comment*" protobuf:"2"`
	Name     string   `parser:"'config' @Ident" protobuf:"3"`
	Type     Type     `parser:"@@" protobuf:"4"`
}

func ConfigFromProto 

func ConfigFromProto(p *schemapb.Config) *Config

func (*Config) GetName 

func (s *Config) GetName() string

func (*Config) IsExported 

func (s *Config) IsExported() bool

func (*Config) Position 

func (s *Config) Position() Position

func (*Config) String 

func (s *Config) String() string

func (*Config) ToProto 

func (s *Config) ToProto() protoreflect.ProtoMessage

type Data 

type Data struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Comments       []string         `parser:"@Comment*" protobuf:"2"`
	Export         bool             `parser:"@'export'?" protobuf:"3"`
	Name           string           `parser:"'data' @Ident" protobuf:"4"`
	TypeParameters []*TypeParameter `parser:"( '<' @@ (',' @@)* '>' )?" protobuf:"5"`
	Fields         []*Field         `parser:"'{' @@* '}'" protobuf:"6"`
	Metadata       []Metadata       `parser:"@@*" protobuf:"7"`
}

A Data structure.

func DataFromProto 

func DataFromProto(s *schemapb.Data) *Data

func (*Data) FieldByName 

func (d *Data) FieldByName(name string) *Field

func (*Data) GetName 

func (d *Data) GetName() string

func (*Data) IsExported 

func (d *Data) IsExported() bool

func (*Data) Monomorphise 

func (d *Data) Monomorphise(ref *Ref) (*Data, error)

Monomorphise this data type with the given type arguments.

If this data type has no type parameters, it will be returned as-is.

This will return a new Data structure with all type parameters replaced with the given types.

func (*Data) Position 

func (d *Data) Position() Position

func (*Data) Scope 

func (d *Data) Scope() Scope

func (*Data) String 

func (d *Data) String() string

func (*Data) ToProto 

func (d *Data) ToProto() proto.Message

type Database 

type Database struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Comments []string `parser:"@Comment*" protobuf:"2"`
	Type     string   `parser:"'database' @'postgres'" protobuf:"4"`
	Name     string   `parser:"@Ident" protobuf:"3"`
}

func DatabaseFromProto 

func DatabaseFromProto(s *schemapb.Database) *Database

func (*Database) GetName 

func (d *Database) GetName() string

func (*Database) IsExported 

func (d *Database) IsExported() bool

func (*Database) Position 

func (d *Database) Position() Position

func (*Database) String 

func (d *Database) String() string

func (*Database) ToProto 

func (d *Database) ToProto() proto.Message

type Decl 

type Decl interface {
	Symbol
	GetName() string
	IsExported() bool
	// contains filtered or unexported methods
}

Decl represents user-defined data types in the schema grammar.

type EncodingOption 

type EncodingOption func(option *encodingOptions)

func LenientMode 

func LenientMode() EncodingOption

type Enum 

type Enum struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Comments []string       `parser:"@Comment*" protobuf:"2"`
	Export   bool           `parser:"@'export'?" protobuf:"3"`
	Name     string         `parser:"'enum' @Ident" protobuf:"4"`
	Type     Type           `parser:"(':' @@)?" protobuf:"5,optional"`
	Variants []*EnumVariant `parser:"'{' @@* '}'" protobuf:"6"`
}

func EnumFromProto 

func EnumFromProto(s *schemapb.Enum) *Enum

func (*Enum) GetName 

func (e *Enum) GetName() string

func (*Enum) IsExported 

func (e *Enum) IsExported() bool

func (*Enum) IsValueEnum 

func (e *Enum) IsValueEnum() bool

IsValueEnum determines whether this is a type or value enum using `e.Type` alone because value enums must always have a unified type across all variants, whereas type enums by definition cannot have a unified type.

func (*Enum) Position 

func (e *Enum) Position() Position

func (*Enum) String 

func (e *Enum) String() string

func (*Enum) ToProto 

func (e *Enum) ToProto() proto.Message

func (*Enum) VariantForName 

func (e *Enum) VariantForName(name string) optional.Option[*EnumVariant]

type EnumVariant 

type EnumVariant struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Comments []string `parser:"@Comment*" protobuf:"2"`
	Name     string   `parser:"@Ident" protobuf:"3"`
	Value    Value    `parser:"(('=' @@) | @@)!" protobuf:"4"`
}

func (*EnumVariant) Position 

func (e *EnumVariant) Position() Position

func (*EnumVariant) String 

func (e *EnumVariant) String() string

func (*EnumVariant) ToProto 

func (e *EnumVariant) ToProto() proto.Message

type FSM 

type FSM struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Comments    []string         `parser:"@Comment*" protobuf:"2"`
	Name        string           `parser:"'fsm' @Ident " protobuf:"3"`
	Metadata    []Metadata       `parser:"@@*" protobuf:"6"`
	Start       []*Ref           `parser:"'{' ('start' @@)*" protobuf:"4"` // Start states.
	Transitions []*FSMTransition `parser:"('transition' @@)* '}'" protobuf:"5"`
}

func FSMFromProto 

func FSMFromProto(pb *schemapb.FSM) *FSM

func (*FSM) GetName 

func (f *FSM) GetName() string

func (*FSM) IsExported 

func (f *FSM) IsExported() bool

func (*FSM) NextState 

func (f *FSM) NextState(sch *Schema, currentState optional.Option[RefKey], event Type) optional.Option[*Ref]

NextState returns the next state, if any, given the current state and event.

If currentState is None, the instance has not started.

func (*FSM) Position 

func (f *FSM) Position() Position

func (*FSM) String 

func (f *FSM) String() string

func (*FSM) TerminalStates 

func (f *FSM) TerminalStates() []*Ref

TerminalStates returns the terminal states of the FSM.

func (*FSM) ToProto 

func (f *FSM) ToProto() protoreflect.ProtoMessage

type FSMTransition 

type FSMTransition struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Comments []string `parser:"@Comment*" protobuf:"2"`
	From     *Ref     `parser:"@@" protobuf:"3,optional"`
	To       *Ref     `parser:"'to' @@" protobuf:"4"`
}

func FSMTransitionFromProto 

func FSMTransitionFromProto(pb *schemapb.FSMTransition) *FSMTransition

func (*FSMTransition) Position 

func (f *FSMTransition) Position() Position

func (*FSMTransition) String 

func (f *FSMTransition) String() string

func (*FSMTransition) ToProto 

func (f *FSMTransition) ToProto() protoreflect.ProtoMessage

type Field 

type Field struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Comments []string   `parser:"@Comment*" protobuf:"3"`
	Name     string     `parser:"@Ident" protobuf:"2"`
	Type     Type       `parser:"@@" protobuf:"4"`
	Metadata []Metadata `parser:"@@*" protobuf:"5"`
}

func (*Field) Alias 

func (f *Field) Alias(kind AliasKind) optional.Option[string]

Alias returns the alias for the given kind.

func (*Field) Position 

func (f *Field) Position() Position

func (*Field) String 

func (f *Field) String() string

func (*Field) ToProto 

func (f *Field) ToProto() proto.Message

type Float 

type Float struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Float bool `parser:"@'Float'" protobuf:"-"`
}

func (*Float) Equal 

func (f *Float) Equal(other Type) bool

func (*Float) GetName 

func (*Float) GetName() string

func (*Float) Position 

func (f *Float) Position() Position

func (*Float) String 

func (*Float) String() string

func (*Float) ToProto 

func (f *Float) ToProto() proto.Message

type IngressPathComponent 

type IngressPathComponent interface {
	Node
	// contains filtered or unexported methods
}

type IngressPathLiteral 

type IngressPathLiteral struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Text string `parser:"@~(Whitespace | '/' | '{' | '}')+" protobuf:"2"`
}

func (*IngressPathLiteral) Position 

func (l *IngressPathLiteral) Position() Position

func (*IngressPathLiteral) String 

func (l *IngressPathLiteral) String() string

func (*IngressPathLiteral) ToProto 

func (l *IngressPathLiteral) ToProto() proto.Message

type IngressPathParameter 

type IngressPathParameter struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Name string `parser:"'{' @Ident '}'" protobuf:"2"`
}

func (*IngressPathParameter) Position 

func (l *IngressPathParameter) Position() Position

func (*IngressPathParameter) String 

func (l *IngressPathParameter) String() string

func (*IngressPathParameter) ToProto 

func (l *IngressPathParameter) ToProto() proto.Message

type Int 

type Int struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Int bool `parser:"@'Int'" protobuf:"-"`
}

func (*Int) Equal 

func (i *Int) Equal(other Type) bool

func (*Int) GetName 

func (*Int) GetName() string

func (*Int) Position 

func (i *Int) Position() Position

func (*Int) String 

func (*Int) String() string

func (*Int) ToProto 

func (i *Int) ToProto() proto.Message

type IntValue 

type IntValue struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Value int `parser:"@Number" protobuf:"2"`
}

func (*IntValue) GetValue 

func (i *IntValue) GetValue() any

func (*IntValue) Position 

func (i *IntValue) Position() Position

func (*IntValue) String 

func (i *IntValue) String() string

func (*IntValue) ToProto 

func (i *IntValue) ToProto() proto.Message

type Map 

type Map struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Key   Type `parser:"'{' @@" protobuf:"2"`
	Value Type `parser:"':' @@ '}'" protobuf:"3"`
}

func (*Map) Equal 

func (m *Map) Equal(other Type) bool

func (*Map) Position 

func (m *Map) Position() Position

func (*Map) String 

func (m *Map) String() string

func (*Map) ToProto 

func (m *Map) ToProto() proto.Message

type Metadata 

type Metadata interface {
	Node
	// contains filtered or unexported methods
}

Metadata represents a metadata Node in the schema grammar.

type MetadataAlias 

type MetadataAlias struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Kind  AliasKind `parser:"'+' 'alias' @Ident" protobuf:"2"`
	Alias string    `parser:"@String" protobuf:"3"`
}

func (*MetadataAlias) Position 

func (m *MetadataAlias) Position() Position

func (*MetadataAlias) String 

func (m *MetadataAlias) String() string

func (*MetadataAlias) ToProto 

func (m *MetadataAlias) ToProto() protoreflect.ProtoMessage

type MetadataCalls 

type MetadataCalls struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Calls []*Ref `parser:"'+' 'calls' @@ (',' @@)*" protobuf:"2"`
}

MetadataCalls represents a metadata block with a list of calls.

func (*MetadataCalls) Position 

func (m *MetadataCalls) Position() Position

func (*MetadataCalls) String 

func (m *MetadataCalls) String() string

func (*MetadataCalls) ToProto 

func (m *MetadataCalls) ToProto() proto.Message

type MetadataConfig 

type MetadataConfig struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Config []*Ref `parser:"'+' 'config' @@ (',' @@)*" protobuf:"2"`
}

MetadataConfig represents a metadata block with a list of config items that are used.

func (*MetadataConfig) Position 

func (m *MetadataConfig) Position() Position

func (*MetadataConfig) String 

func (m *MetadataConfig) String() string

func (*MetadataConfig) ToProto 

func (m *MetadataConfig) ToProto() proto.Message

type MetadataCronJob 

type MetadataCronJob struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Cron string `parser:"'+' 'cron' Whitespace @(' ' | ~EOL)+" protobuf:"2"`
}

func (*MetadataCronJob) Position 

func (m *MetadataCronJob) Position() Position

func (*MetadataCronJob) String 

func (m *MetadataCronJob) String() string

func (*MetadataCronJob) ToProto 

func (m *MetadataCronJob) ToProto() proto.Message

type MetadataDatabases 

type MetadataDatabases struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Calls []*Ref `parser:"'+' 'database' 'calls' @@ (',' @@)*" protobuf:"2"`
}

func (*MetadataDatabases) Position 

func (m *MetadataDatabases) Position() Position

func (*MetadataDatabases) String 

func (m *MetadataDatabases) String() string

func (*MetadataDatabases) ToProto 

func (m *MetadataDatabases) ToProto() proto.Message

type MetadataEncoding 

type MetadataEncoding struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Type    string `parser:"'+' 'encoding' @'json'" protobuf:"2"`
	Lenient bool   `parser:"@'lenient'?" protobuf:"3"`
}

func (*MetadataEncoding) Position 

func (m *MetadataEncoding) Position() Position

func (*MetadataEncoding) String 

func (m *MetadataEncoding) String() string

func (*MetadataEncoding) ToProto 

func (m *MetadataEncoding) ToProto() protoreflect.ProtoMessage

type MetadataIngress 

type MetadataIngress struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Type   string                 `parser:"'+' 'ingress' @('http')?" protobuf:"2"`
	Method string                 `parser:"@('GET' | 'POST' | 'PUT' | 'DELETE')" protobuf:"3"`
	Path   []IngressPathComponent `parser:"('/' @@)+" protobuf:"4"`
}

func (*MetadataIngress) Position 

func (m *MetadataIngress) Position() Position

func (*MetadataIngress) String 

func (m *MetadataIngress) String() string

func (*MetadataIngress) ToProto 

func (m *MetadataIngress) ToProto() proto.Message

type MetadataRetry 

type MetadataRetry struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Count      *int   `parser:"'+' 'retry' (@Number Whitespace)?" protobuf:"2,optional"`
	MinBackoff string `parser:"@(Number (?! Whitespace) Ident)?" protobuf:"3"`
	MaxBackoff string `parser:"@(Number (?! Whitespace) Ident)?" protobuf:"4"`
	Catch      *Ref   `parser:"('catch' @@)?" protobuf:"5,optional"`
}

func (*MetadataRetry) Position 

func (m *MetadataRetry) Position() Position

func (*MetadataRetry) RetryParams 

func (m *MetadataRetry) RetryParams() (RetryParams, error)

func (*MetadataRetry) String 

func (m *MetadataRetry) String() string

func (*MetadataRetry) ToProto 

func (m *MetadataRetry) ToProto() proto.Message

type MetadataSecrets 

type MetadataSecrets struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Secrets []*Ref `parser:"'+' 'secrets' @@ (',' @@)*" protobuf:"2"`
}

MetadataSecrets represents a metadata block with a list of config items that are used.

func (*MetadataSecrets) Position 

func (m *MetadataSecrets) Position() Position

func (*MetadataSecrets) String 

func (m *MetadataSecrets) String() string

func (*MetadataSecrets) ToProto 

func (m *MetadataSecrets) ToProto() proto.Message

type MetadataSubscriber 

type MetadataSubscriber struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Name string `parser:"'+' 'subscribe' @Ident" protobuf:"2"`
}

func (*MetadataSubscriber) Position 

func (m *MetadataSubscriber) Position() Position

func (*MetadataSubscriber) String 

func (m *MetadataSubscriber) String() string

func (*MetadataSubscriber) ToProto 

func (m *MetadataSubscriber) ToProto() proto.Message

type MetadataTypeMap 

type MetadataTypeMap struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Runtime    string `parser:"'+' 'typemap' @('go' | 'kotlin' | 'java')" protobuf:"2"`
	NativeName string `parser:"@String" protobuf:"3"`
}

func (*MetadataTypeMap) Position 

func (m *MetadataTypeMap) Position() Position

func (*MetadataTypeMap) String 

func (m *MetadataTypeMap) String() string

func (*MetadataTypeMap) ToProto 

func (m *MetadataTypeMap) ToProto() protoreflect.ProtoMessage

type Module 

type Module struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Comments []string `parser:"@Comment*" protobuf:"2"`
	Builtin  bool     `parser:"@'builtin'?" protobuf:"3"`
	Name     string   `parser:"'module' @Ident '{'" protobuf:"4"`
	Decls    []Decl   `parser:"@@* '}'" protobuf:"5"`

	Runtime *ModuleRuntime `protobuf:"31634,optional" parser:""`
}

func Builtins 

func Builtins() *Module

Builtins returns a Module containing built-in types.

func ModuleFromBytes 

func ModuleFromBytes(b []byte) (*Module, error)

func ModuleFromProto 

func ModuleFromProto(s *schemapb.Module) (*Module, error)

ModuleFromProto converts a protobuf Module to a Module and validates it.

func ModuleFromProtoFile 

func ModuleFromProtoFile(filename string) (*Module, error)

ModuleFromProtoFile loads a module from the given proto-encoded file.

func ParseModule 

func ParseModule(filename string, r io.Reader) (*Module, error)

func ParseModuleString 

func ParseModuleString(filename, input string) (*Module, error)

func (*Module) AddData 

func (m *Module) AddData(data *Data) int

AddData and return its index.

If data is already in the module, the existing index is returned. If the new data is exported but the existing data is not, it sets it to being exported.

func (*Module) AddDecl 

func (m *Module) AddDecl(decl Decl)

AddDecl adds a single decl to the module.

It is only added if not already present or if it changes the visibility of the existing Decl.

func (*Module) AddDecls 

func (m *Module) AddDecls(decls []Decl)

AddDecls appends decls to the module.

Decls are only added if they are not already present in the module or if they change the visibility of an existing Decl.

func (*Module) Data 

func (m *Module) Data() []*Data

func (*Module) GetName 

func (m *Module) GetName() string

func (*Module) Imports 

func (m *Module) Imports() []string

Imports returns the modules imported by this module.

func (*Module) IsExported 

func (m *Module) IsExported() bool

func (*Module) Position 

func (m *Module) Position() Position

func (*Module) Resolve 

func (m *Module) Resolve(ref Ref) *ModuleDecl

Resolve returns the declaration in this module with the given name, or nil

func (*Module) Scan 

func (m *Module) Scan(src any) error

func (*Module) String 

func (m *Module) String() string

func (*Module) ToProto 

func (m *Module) ToProto() proto.Message

func (*Module) Value 

func (m *Module) Value() (driver.Value, error)

func (*Module) Verbs 

func (m *Module) Verbs() []*Verb

type ModuleDecl 

type ModuleDecl struct {
	Module optional.Option[*Module]
	Symbol Symbol
}

ModuleDecl is a declaration associated with a module.

func ResolveAs 

func ResolveAs[S Symbol](scopes Scopes, ref Ref) (symbol S, decl *ModuleDecl)

ResolveAs resolves a Ref to a concrete symbol and declaration.

[decl] will be non-nil if the symbol is found, regardless of its type. [symbol] will be non-nil if the symbol is of type [S].

func ResolveTypeAs 

func ResolveTypeAs[S Symbol](scopes Scopes, t Type) (symbol S, decl *ModuleDecl)

ResolveTypeAs resolves a Type to a concrete symbol and declaration.

type ModuleRuntime 

type ModuleRuntime struct {
	CreateTime  time.Time `protobuf:"1"`
	Language    string    `protobuf:"2"`
	MinReplicas int32     `protobuf:"3"`
	OS          string    `protobuf:"4,optional"`
	Arch        string    `protobuf:"5,optional"`
}

type Named 

type Named interface {
	Symbol
	GetName() string
}

A Named symbol in the grammar.

type Node 

type Node interface {
	String() string
	ToProto() proto.Message
	Position() Position
	// contains filtered or unexported methods
}

A Node in the schema grammar.

type Optional 

type Optional struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Type Type `parser:"@@" protobuf:"2,optional"`
}

Optional represents a Type whose value may be optional.

func (*Optional) Equal 

func (o *Optional) Equal(other Type) bool

func (*Optional) Position 

func (o *Optional) Position() Position

func (*Optional) String 

func (o *Optional) String() string

func (*Optional) ToProto 

func (o *Optional) ToProto() proto.Message

type Position 

type Position struct {
	Filename string `protobuf:"1"`
	Offset   int    `parser:"" protobuf:"-"`
	Line     int    `protobuf:"2"`
	Column   int    `protobuf:"3"`
}

func PosFromProto 

func PosFromProto(pos *schemapb.Position) Position

func (Position) String 

func (p Position) String() string

func (Position) ToErrorPos 

func (p Position) ToErrorPos() builderrors.Position

func (Position) ToErrorPosWithEnd 

func (p Position) ToErrorPosWithEnd(endColumn int) builderrors.Position

func (Position) ToProto 

func (p Position) ToProto() proto.Message

type Ref 

type Ref struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Module string `parser:"(@Ident '.')?" protobuf:"3"`
	Name   string `parser:"@Ident" protobuf:"2"`
	// Only used for data references.
	TypeParameters []Type `parser:"[ '<' @@ (',' @@)* '>' ]" protobuf:"4"`
}

Ref is an untyped reference to a symbol.

func ParseRef 

func ParseRef(ref string) (*Ref, error)

func RefFromProto 

func RefFromProto(s *schemapb.Ref) *Ref

func (*Ref) Equal 

func (r *Ref) Equal(other Type) bool

func (*Ref) Position 

func (r *Ref) Position() Position

func (*Ref) Scan 

func (r *Ref) Scan(src any) error

func (*Ref) String 

func (r *Ref) String() string

func (*Ref) ToProto 

func (r *Ref) ToProto() proto.Message

func (Ref) ToRefKey 

func (r Ref) ToRefKey() RefKey

func (Ref) Value 

func (r Ref) Value() (driver.Value, error)

type RefKey 

type RefKey struct {
	Module string `parser:"(@Ident '.')?"`
	Name   string `parser:"@Ident"`
}

RefKey is a map key for a reference.

func (*RefKey) Scan 

func (r *RefKey) Scan(src any) error

func (RefKey) String 

func (r RefKey) String() string

func (RefKey) ToProto 

func (r RefKey) ToProto() *schemapb.Ref

func (RefKey) ToRef 

func (r RefKey) ToRef() *Ref

func (RefKey) Value 

func (r RefKey) Value() (driver.Value, error)

type Resolver 

type Resolver interface {
	// Resolve a reference to a symbol declaration or nil.
	Resolve(ref Ref) *ModuleDecl
}

Resolver may be implemented be a node in the AST to resolve references within itself.

type RetryParams 

type RetryParams struct {
	Count      int
	MinBackoff time.Duration
	MaxBackoff time.Duration
	Catch      optional.Option[RefKey]
}

func RetryParamsForFSMTransition 

func RetryParamsForFSMTransition(fsm *FSM, verb *Verb) (RetryParams, error)

RetryParamsForFSMTransition finds the retry metadata for the given transition and returns the retry count, min and max backoff.

type Schema 

type Schema struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Modules []*Module `parser:"@@*" protobuf:"2"`
}

func FromProto 

func FromProto(s *schemapb.Schema) (*Schema, error)

FromProto converts a protobuf Schema to a Schema and validates it.

func MustValidate 

func MustValidate(schema *Schema) *Schema

MustValidate panics if a schema is invalid.

This is useful for testing.

func Parse 

func Parse(filename string, r io.Reader) (*Schema, error)

func ParseString 

func ParseString(filename, input string) (*Schema, error)

func ValidateModuleInSchema 

func ValidateModuleInSchema(schema *Schema, m optional.Option[*Module]) (*Schema, error)

ValidateModuleInSchema clones and normalises a schema and semantically validates a single module within it. If no module is provided, all modules in the schema are validated.

func ValidateSchema 

func ValidateSchema(schema *Schema) (*Schema, error)

ValidateSchema clones, normalises and semantically validates a schema.

func (*Schema) Hash 

func (s *Schema) Hash() [sha256.Size]byte

func (*Schema) Module 

func (s *Schema) Module(name string) optional.Option[*Module]

Module returns the named module if it exists.

func (*Schema) Position 

func (s *Schema) Position() Position

func (*Schema) Resolve 

func (s *Schema) Resolve(ref *Ref) optional.Option[Decl]

Resolve a reference to a declaration.

func (*Schema) ResolveMonomorphised 

func (s *Schema) ResolveMonomorphised(ref *Ref) (*Data, error)

ResolveMonomorphised resolves a reference to a monomorphised Data type. Also supports resolving the monomorphised Data type underlying a TypeAlias, where applicable.

If a Ref is not found, returns ErrNotFound.

func (*Schema) ResolveRequestResponseType 

func (s *Schema) ResolveRequestResponseType(ref *Ref) (Symbol, error)

ResolveRequestResponseType resolves a reference to a supported request/response type, which can be a Data or an Any, or a TypeAlias over either supported type.

func (*Schema) ResolveToType 

func (s *Schema) ResolveToType(ref *Ref, out Decl) error

ResolveToType resolves a reference to a declaration of the given type.

The out parameter must be a pointer to a non-nil Decl implementation or this will panic. 

data := &Data{}
err := s.ResolveToType(ref, data)

func (*Schema) ResolveWithModule 

func (s *Schema) ResolveWithModule(ref *Ref) (optional.Option[Decl], optional.Option[*Module])

ResolveWithModule a reference to a declaration and its module.

func (*Schema) String 

func (s *Schema) String() string

func (*Schema) ToProto 

func (s *Schema) ToProto() proto.Message

func (*Schema) Upsert 

func (s *Schema) Upsert(module *Module)

Upsert inserts or replaces a module.

type Scope 

type Scope map[string]ModuleDecl

Scope maps relative names to fully qualified types.

func (Scope) String 

func (s Scope) String() string

type Scoped 

type Scoped interface {
	Scope() Scope
}

Scoped is implemented by nodes that wish to introduce a new scope.

type Scopes 

type Scopes []Scope

Scopes to search during type resolution.

func NewScopes 

func NewScopes() Scopes

NewScopes constructs a new type resolution stack with builtins pre-populated.

func (*Scopes) Add 

func (s *Scopes) Add(owner optional.Option[*Module], name string, symbol Symbol) error

Add a declaration to the current scope.

func (Scopes) Push 

func (s Scopes) Push() Scopes

Push a new Scope onto the stack.

This contains references to previous Scopes so that updates are preserved.

func (Scopes) PushScope 

func (s Scopes) PushScope(scope Scope) Scopes

func (Scopes) Resolve 

func (s Scopes) Resolve(ref Ref) *ModuleDecl

Resolve a reference to a symbol declaration or nil.

func (Scopes) ResolveType 

func (s Scopes) ResolveType(t Type) *ModuleDecl

func (Scopes) String 

func (s Scopes) String() string

type Secret 

type Secret struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Comments []string `parser:"@Comment*" protobuf:"2"`
	Name     string   `parser:"'secret' @Ident" protobuf:"3"`
	Type     Type     `parser:"@@" protobuf:"4"`
}

func SecretFromProto 

func SecretFromProto(s *schemapb.Secret) *Secret

func (*Secret) GetName 

func (s *Secret) GetName() string

func (*Secret) IsExported 

func (s *Secret) IsExported() bool

func (*Secret) Position 

func (s *Secret) Position() Position

func (*Secret) String 

func (s *Secret) String() string

func (*Secret) ToProto 

func (s *Secret) ToProto() protoreflect.ProtoMessage

type String 

type String struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Str bool `parser:"@'String'" protobuf:"-"`
}

func (*String) Equal 

func (s *String) Equal(other Type) bool

func (*String) GetName 

func (*String) GetName() string

func (*String) Position 

func (s *String) Position() Position

func (*String) String 

func (*String) String() string

func (*String) ToProto 

func (s *String) ToProto() proto.Message

type StringValue 

type StringValue struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Value string `parser:"@String" protobuf:"2"`
}

func (*StringValue) GetValue 

func (s *StringValue) GetValue() any

func (*StringValue) Position 

func (s *StringValue) Position() Position

func (*StringValue) String 

func (s *StringValue) String() string

func (*StringValue) ToProto 

func (s *StringValue) ToProto() proto.Message

type Subscription 

type Subscription struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Comments []string `parser:"@Comment*" protobuf:"2"`
	Name     string   `parser:"'subscription' @Ident" protobuf:"3"`
	Topic    *Ref     `parser:"@@" protobuf:"4"`
}

func SubscriptionFromProto 

func SubscriptionFromProto(s *schemapb.Subscription) *Subscription

func (*Subscription) GetName 

func (s *Subscription) GetName() string

func (*Subscription) IsExported 

func (s *Subscription) IsExported() bool

func (*Subscription) Position 

func (s *Subscription) Position() Position

func (*Subscription) String 

func (s *Subscription) String() string

func (*Subscription) ToProto 

func (s *Subscription) ToProto() proto.Message

type Symbol 

type Symbol interface {
	Node
	// contains filtered or unexported methods
}

Symbol represents a symbol in the schema grammar.

A Symbol is a named type that can be referenced by other types. This includes user defined data types such as data structures and enums, and builtin types.

type Time 

type Time struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Time bool `parser:"@'Time'" protobuf:"-"`
}

func (*Time) Equal 

func (t *Time) Equal(other Type) bool

func (*Time) GetName 

func (*Time) GetName() string

func (*Time) Position 

func (t *Time) Position() Position

func (*Time) String 

func (*Time) String() string

func (*Time) ToProto 

func (t *Time) ToProto() proto.Message

type Topic 

type Topic struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Comments []string `parser:"@Comment*" protobuf:"2"`
	Export   bool     `parser:"@'export'?" protobuf:"3"`
	Name     string   `parser:"'topic' @Ident" protobuf:"4"`
	Event    Type     `parser:"@@" protobuf:"5"`
}

func TopicFromProto 

func TopicFromProto(t *schemapb.Topic) *Topic

func (*Topic) GetName 

func (t *Topic) GetName() string

func (*Topic) IsExported 

func (t *Topic) IsExported() bool

func (*Topic) Position 

func (t *Topic) Position() Position

func (*Topic) String 

func (t *Topic) String() string

func (*Topic) ToProto 

func (t *Topic) ToProto() proto.Message

type Type 

type Type interface {
	Node
	// Equal returns true if this type is equal to another type.
	Equal(other Type) bool
	// contains filtered or unexported methods
}

Type represents a Type Node in the schema grammar.

func ParseType 

func ParseType(filename, input string) (Type, error)

ParseType parses the string representation of a type.

func TypeFromProto 

func TypeFromProto(s *schemapb.Type) Type

type TypeAlias 

type TypeAlias struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Comments []string   `parser:"@Comment*" protobuf:"2"`
	Export   bool       `parser:"@'export'?" protobuf:"3"`
	Name     string     `parser:"'typealias' @Ident" protobuf:"4"`
	Type     Type       `parser:"@@" protobuf:"5"`
	Metadata []Metadata `parser:"@@*" protobuf:"6"`
}

func TypeAliasFromProto 

func TypeAliasFromProto(s *schemapb.TypeAlias) *TypeAlias

func (*TypeAlias) GetName 

func (t *TypeAlias) GetName() string

func (*TypeAlias) IsExported 

func (t *TypeAlias) IsExported() bool

func (*TypeAlias) Position 

func (t *TypeAlias) Position() Position

func (*TypeAlias) String 

func (t *TypeAlias) String() string

func (*TypeAlias) ToProto 

func (t *TypeAlias) ToProto() proto.Message

type TypeParameter 

type TypeParameter struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Name string `parser:"@Ident" protobuf:"2"`
}

func (*TypeParameter) GetName 

func (t *TypeParameter) GetName() string

func (*TypeParameter) Position 

func (t *TypeParameter) Position() Position

func (*TypeParameter) String 

func (t *TypeParameter) String() string

func (*TypeParameter) ToProto 

func (t *TypeParameter) ToProto() protoreflect.ProtoMessage

type TypeValue 

type TypeValue struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Value Type `parser:"@@" protobuf:"2"`
}

func (*TypeValue) GetValue 

func (t *TypeValue) GetValue() any

func (*TypeValue) Position 

func (t *TypeValue) Position() Position

func (*TypeValue) String 

func (t *TypeValue) String() string

func (*TypeValue) ToProto 

func (t *TypeValue) ToProto() proto.Message

type Unit 

type Unit struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Unit bool `parser:"@'Unit'" protobuf:"-"`
}

func (*Unit) Equal 

func (u *Unit) Equal(other Type) bool

func (*Unit) GetName 

func (u *Unit) GetName() string

func (*Unit) Position 

func (u *Unit) Position() Position

func (*Unit) String 

func (u *Unit) String() string

func (*Unit) ToProto 

func (u *Unit) ToProto() protoreflect.ProtoMessage

type Value 

type Value interface {
	Node
	GetValue() any
	// contains filtered or unexported methods
}

Value represents a value Node in the schema grammar.

type Verb 

type Verb struct {
	Pos Position `parser:"" protobuf:"1,optional"`

	Comments []string   `parser:"@Comment*" protobuf:"2"`
	Export   bool       `parser:"@'export'?" protobuf:"3"`
	Name     string     `parser:"'verb' @Ident" protobuf:"4"`
	Request  Type       `parser:"'(' @@ ')'" protobuf:"5"`
	Response Type       `parser:"@@" protobuf:"6"`
	Metadata []Metadata `parser:"@@*" protobuf:"7"`

	Runtime *VerbRuntime `protobuf:"31634,optional" parser:""`
}

func VerbFromProto 

func VerbFromProto(s *schemapb.Verb) *Verb

func (*Verb) AddCall 

func (v *Verb) AddCall(verb *Ref)

AddCall adds a call reference to the Verb.

func (*Verb) AddConfig 

func (v *Verb) AddConfig(config *Ref)

AddConfig adds a config reference to the Verb.

func (*Verb) AddSecret 

func (v *Verb) AddSecret(secret *Ref)

AddSecret adds a config reference to the Verb.

func (*Verb) GetMetadataCronJob 

func (v *Verb) GetMetadataCronJob() optional.Option[*MetadataCronJob]

func (*Verb) GetMetadataIngress 

func (v *Verb) GetMetadataIngress() optional.Option[*MetadataIngress]

func (*Verb) GetName 

func (v *Verb) GetName() string

func (*Verb) IsExported 

func (v *Verb) IsExported() bool

func (*Verb) Kind 

func (v *Verb) Kind() VerbKind

Kind returns the kind of Verb this is.

func (*Verb) Position 

func (v *Verb) Position() Position

func (*Verb) String 

func (v *Verb) String() string

func (*Verb) ToProto 

func (v *Verb) ToProto() proto.Message

type VerbKind 

type VerbKind string

VerbKind is the kind of Verb: verb, sink, source or empty. 

const (
	// VerbKindVerb is a normal verb taking an input and an output of any non-unit type.
	VerbKindVerb VerbKind = "verb"
	// VerbKindSink is a verb that takes an input and returns unit.
	VerbKindSink VerbKind = "sink"
	// VerbKindSource is a verb that returns an output and takes unit.
	VerbKindSource VerbKind = "source"
	// VerbKindEmpty is a verb that takes unit and returns unit.
	VerbKindEmpty VerbKind = "empty"
)

type VerbRuntime 

type VerbRuntime struct {
	CreateTime time.Time  `protobuf:"1"`
	StartTime  time.Time  `protobuf:"2"`
	Status     VerbStatus `protobuf:"3"`
}

type VerbStatus 

type VerbStatus int
const (
	VerbStatusOffline VerbStatus = iota
	VerbStatusStarting
	VerbStatusOnline
	VerbStatusStopping
	VerbStatusStopped
	VerbStatusError
)

Source Files

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Directories

Path Synopsis
Package strcase provides programming case conversion functions for strings.
 Package strcase provides programming case conversion functions for strings.

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