templateproto

package
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 Go to latest Published: Nov 22, 2024 License: Apache-2.0 Imports: 16 Imported by: 6

Documentation

Overview

Package templateproto defines a proto-based way to configure templates for JSON documents.

Index

Constants

This section is empty.

Variables

View Source 
var File_go_chromium_org_luci_common_data_text_templateproto_template_proto protoreflect.FileDescriptor
View Source 
var ParamRegex = regexp.MustCompile(`^\${[^}]+}$`)

ParamRegex is the regular expression that all parameter names must match.

Functions

func NormalizeJSON 

func NormalizeJSON(data string, obj bool) (string, error)

NormalizeJSON is used to take some free-form JSON and validates that:

  • it only contains a valid JSON object (e.g. `{...stuff...}`); OR
  • it only contains a valid JSON array (e.g. `[...stuff...]`)

If obj is true, this looks for an object, if it's false, it looks for an array.

This will also remove all extra whitespace and sort all objects by key.

Types

type File 

type File struct {
	Template map[string]*File_Template `` /* 157-byte string literal not displayed */
	// contains filtered or unexported fields
}

File represents a file full of template definitions.

func LoadFile 

func LoadFile(data string) (file *File, err error)

LoadFile loads a File from a string containing the template text protobuf.

Expects config.Interface to be in the context already.

func (*File) Descriptor deprecated 

func (*File) Descriptor() ([]byte, []int)

Deprecated: Use File.ProtoReflect.Descriptor instead.

func (*File) GetTemplate 

func (x *File) GetTemplate() map[string]*File_Template

func (*File) Normalize 

func (f *File) Normalize() error

Normalize will normalize all of the Templates in this message, returning an error if any are invalid.

func (*File) ProtoMessage 

func (*File) ProtoMessage()

func (*File) ProtoReflect 

func (x *File) ProtoReflect() protoreflect.Message

func (*File) Render 

func (f *File) Render(spec *Specifier) (string, error)

Render renders the specified template with the given parameters.

func (*File) RenderL 

func (f *File) RenderL(templName string, params LiteralMap) (ret string, err error)

RenderL renders a specified template with go literal arguments.

func (*File) Reset 

func (x *File) Reset()

func (*File) String 

func (x *File) String() string

type File_Template 

type File_Template struct {

	// Markdown-formatted documentation for this schema entry.
	Doc string `protobuf:"bytes,1,opt,name=doc,proto3" json:"doc,omitempty"`
	// body is the main JSON output for this template. It must have the form
	// of valid json, modulo the substitution parameters. In order for this
	// Template to be valid, body must parse as valid JSON, after all
	// substitutions have been applied.
	Body string `protobuf:"bytes,2,opt,name=body,proto3" json:"body,omitempty"`
	// param is a listing of all of the parameterized bits in the Template body.
	// The key must match the regex /\${[^}]+}/. So "${foo}" would be ok, but
	// "foo", "$foo", or "${}" would not.
	//
	// params provided here must be present in Body at least once in order
	// for the Template to be valid.
	Param map[string]*File_Template_Parameter `` /* 151-byte string literal not displayed */
	// contains filtered or unexported fields
}

Template defines a single template.

func (*File_Template) Descriptor deprecated 

func (*File_Template) Descriptor() ([]byte, []int)

Deprecated: Use File_Template.ProtoReflect.Descriptor instead.

func (*File_Template) GetBody 

func (x *File_Template) GetBody() string

func (*File_Template) GetDoc 

func (x *File_Template) GetDoc() string

func (*File_Template) GetParam 

func (x *File_Template) GetParam() map[string]*File_Template_Parameter

func (*File_Template) Normalize 

func (t *File_Template) Normalize() error

Normalize will normalize the Template message, returning an error if it is invalid.

func (*File_Template) ProtoMessage 

func (*File_Template) ProtoMessage()

func (*File_Template) ProtoReflect 

func (x *File_Template) ProtoReflect() protoreflect.Message

func (*File_Template) Render 

func (t *File_Template) Render(params map[string]*Value) (string, error)

Render turns the Template into a JSON document, filled with the given parameters. It does not validate that the output is valid JSON, but if you called Normalize on this Template already, then it WILL be valid JSON.

func (*File_Template) RenderL 

func (t *File_Template) RenderL(m LiteralMap) (string, error)

RenderL renders this template with a LiteralMap, calling its Convert method and passing the result to Render.

func (*File_Template) Reset 

func (x *File_Template) Reset()

func (*File_Template) String 

func (x *File_Template) String() string

type File_Template_Parameter 

type File_Template_Parameter struct {

	// Markdown-formatted documentation for this schema entry.
	Doc     string `protobuf:"bytes,1,opt,name=doc,proto3" json:"doc,omitempty"`
	Default *Value `protobuf:"bytes,2,opt,name=default,proto3" json:"default,omitempty"`
	// nullable indicates if 'null' is a valid value for this parameter. This
	// can be used to distinguish e.g. "" from not-supplied. If default is
	// Value{null: {}}, this must be true.
	Nullable bool    `protobuf:"varint,3,opt,name=nullable,proto3" json:"nullable,omitempty"`
	Schema   *Schema `protobuf:"bytes,4,opt,name=schema,proto3" json:"schema,omitempty"`
	// contains filtered or unexported fields
}

func (*File_Template_Parameter) Accepts 

func (p *File_Template_Parameter) Accepts(v *Value) error

Accepts returns nil if this Parameter can accept the Value.

func (*File_Template_Parameter) Descriptor deprecated 

func (*File_Template_Parameter) Descriptor() ([]byte, []int)

Deprecated: Use File_Template_Parameter.ProtoReflect.Descriptor instead.

func (*File_Template_Parameter) GetDefault 

func (x *File_Template_Parameter) GetDefault() *Value

func (*File_Template_Parameter) GetDoc 

func (x *File_Template_Parameter) GetDoc() string

func (*File_Template_Parameter) GetNullable 

func (x *File_Template_Parameter) GetNullable() bool

func (*File_Template_Parameter) GetSchema 

func (x *File_Template_Parameter) GetSchema() *Schema

func (*File_Template_Parameter) Normalize 

func (p *File_Template_Parameter) Normalize() error

Normalize will normalize the Parameter, returning an error if it is invalid.

func (*File_Template_Parameter) ProtoMessage 

func (*File_Template_Parameter) ProtoMessage()

func (*File_Template_Parameter) ProtoReflect 

func (x *File_Template_Parameter) ProtoReflect() protoreflect.Message

func (*File_Template_Parameter) Reset 

func (x *File_Template_Parameter) Reset()

func (*File_Template_Parameter) String 

func (x *File_Template_Parameter) String() string

type LiteralMap 

type LiteralMap map[string]any

LiteralMap is a type for literal in-line param substitutions, or when you know statically that the params correspond to correct Value types.

func (LiteralMap) Convert 

func (m LiteralMap) Convert() (map[string]*Value, error)

Convert converts this to a parameter map that can be used with Template.Render.

type Schema 

type Schema struct {

	// Types that are assignable to Schema:
	//
	//	*Schema_Int
	//	*Schema_Uint
	//	*Schema_Float
	//	*Schema_Bool
	//	*Schema_Str
	//	*Schema_Bytes
	//	*Schema_Enum
	//	*Schema_Object
	//	*Schema_Array
	Schema isSchema_Schema `protobuf_oneof:"schema"`
	// contains filtered or unexported fields
}

func (*Schema) Accepts 

func (s *Schema) Accepts(v *Value) error

Accepts returns nil if this Schema can accept the Value.

func (*Schema) Descriptor deprecated 

func (*Schema) Descriptor() ([]byte, []int)

Deprecated: Use Schema.ProtoReflect.Descriptor instead.

func (*Schema) GetArray 

func (x *Schema) GetArray() *Schema_JSON

func (*Schema) GetBool 

func (x *Schema) GetBool() *Schema_Atom

func (*Schema) GetBytes 

func (x *Schema) GetBytes() *Schema_Sequence

func (*Schema) GetEnum 

func (x *Schema) GetEnum() *Schema_Set

func (*Schema) GetFloat 

func (x *Schema) GetFloat() *Schema_Atom

func (*Schema) GetInt 

func (x *Schema) GetInt() *Schema_Atom

func (*Schema) GetObject 

func (x *Schema) GetObject() *Schema_JSON

func (*Schema) GetSchema 

func (m *Schema) GetSchema() isSchema_Schema

func (*Schema) GetStr 

func (x *Schema) GetStr() *Schema_Sequence

func (*Schema) GetUint 

func (x *Schema) GetUint() *Schema_Atom

func (*Schema) Normalize 

func (s *Schema) Normalize() error

Normalize will normalize the Schema, returning an error if it is invalid.

func (*Schema) ProtoMessage 

func (*Schema) ProtoMessage()

func (*Schema) ProtoReflect 

func (x *Schema) ProtoReflect() protoreflect.Message

func (*Schema) Reset 

func (x *Schema) Reset()

func (*Schema) String 

func (x *Schema) String() string

func (*Schema) Zero 

func (s *Schema) Zero() *Value

Zero produces a Value from this schema which is a valid 'zero' value (in the go sense)

type Schema_Array 

type Schema_Array struct {
	Array *Schema_JSON `protobuf:"bytes,9,opt,name=array,proto3,oneof"`
}

type Schema_Atom 

type Schema_Atom struct {
	// contains filtered or unexported fields
}

func (*Schema_Atom) Descriptor deprecated 

func (*Schema_Atom) Descriptor() ([]byte, []int)

Deprecated: Use Schema_Atom.ProtoReflect.Descriptor instead.

func (*Schema_Atom) ProtoMessage 

func (*Schema_Atom) ProtoMessage()

func (*Schema_Atom) ProtoReflect 

func (x *Schema_Atom) ProtoReflect() protoreflect.Message

func (*Schema_Atom) Reset 

func (x *Schema_Atom) Reset()

func (*Schema_Atom) String 

func (x *Schema_Atom) String() string

type Schema_Bool 

type Schema_Bool struct {
	Bool *Schema_Atom `protobuf:"bytes,4,opt,name=bool,proto3,oneof"`
}

type Schema_Bytes 

type Schema_Bytes struct {
	Bytes *Schema_Sequence `protobuf:"bytes,6,opt,name=bytes,proto3,oneof"`
}

type Schema_Enum 

type Schema_Enum struct {
	Enum *Schema_Set `protobuf:"bytes,7,opt,name=enum,proto3,oneof"` // populated with Value_Str
}

type Schema_Float 

type Schema_Float struct {
	Float *Schema_Atom `protobuf:"bytes,3,opt,name=float,proto3,oneof"`
}

type Schema_Int 

type Schema_Int struct {
	Int *Schema_Atom `protobuf:"bytes,1,opt,name=int,proto3,oneof"`
}

type Schema_JSON 

type Schema_JSON struct {

	// restricts the maximum amount of bytes that a Value for this field may
	// take.
	MaxLength uint32 `protobuf:"varint,1,opt,name=max_length,json=maxLength,proto3" json:"max_length,omitempty"`
	// contains filtered or unexported fields
}

func (*Schema_JSON) Descriptor deprecated 

func (*Schema_JSON) Descriptor() ([]byte, []int)

Deprecated: Use Schema_JSON.ProtoReflect.Descriptor instead.

func (*Schema_JSON) GetMaxLength 

func (x *Schema_JSON) GetMaxLength() uint32

func (*Schema_JSON) ProtoMessage 

func (*Schema_JSON) ProtoMessage()

func (*Schema_JSON) ProtoReflect 

func (x *Schema_JSON) ProtoReflect() protoreflect.Message

func (*Schema_JSON) Reset 

func (x *Schema_JSON) Reset()

func (*Schema_JSON) String 

func (x *Schema_JSON) String() string

type Schema_Object 

type Schema_Object struct {
	Object *Schema_JSON `protobuf:"bytes,8,opt,name=object,proto3,oneof"`
}

type Schema_Sequence 

type Schema_Sequence struct {

	// restricts the maximum amount of bytes that a Value for this field may
	// take.
	MaxLength uint32 `protobuf:"varint,1,opt,name=max_length,json=maxLength,proto3" json:"max_length,omitempty"`
	// contains filtered or unexported fields
}

func (*Schema_Sequence) Descriptor deprecated 

func (*Schema_Sequence) Descriptor() ([]byte, []int)

Deprecated: Use Schema_Sequence.ProtoReflect.Descriptor instead.

func (*Schema_Sequence) GetMaxLength 

func (x *Schema_Sequence) GetMaxLength() uint32

func (*Schema_Sequence) ProtoMessage 

func (*Schema_Sequence) ProtoMessage()

func (*Schema_Sequence) ProtoReflect 

func (x *Schema_Sequence) ProtoReflect() protoreflect.Message

func (*Schema_Sequence) Reset 

func (x *Schema_Sequence) Reset()

func (*Schema_Sequence) String 

func (x *Schema_Sequence) String() string

type Schema_Set 

type Schema_Set struct {

	// entry lists the possible tokens that this set can have.
	Entry []*Schema_Set_Entry `protobuf:"bytes,1,rep,name=entry,proto3" json:"entry,omitempty"`
	// contains filtered or unexported fields
}

func (*Schema_Set) Descriptor deprecated 

func (*Schema_Set) Descriptor() ([]byte, []int)

Deprecated: Use Schema_Set.ProtoReflect.Descriptor instead.

func (*Schema_Set) GetEntry 

func (x *Schema_Set) GetEntry() []*Schema_Set_Entry

func (*Schema_Set) Has 

func (s *Schema_Set) Has(token string) bool

Has returns true iff the given token is a valid value for this enumeration.

func (*Schema_Set) Normalize 

func (s *Schema_Set) Normalize() error

Normalize will normalize the Schema_Set, returning an error if it is invalid.

func (*Schema_Set) ProtoMessage 

func (*Schema_Set) ProtoMessage()

func (*Schema_Set) ProtoReflect 

func (x *Schema_Set) ProtoReflect() protoreflect.Message

func (*Schema_Set) Reset 

func (x *Schema_Set) Reset()

func (*Schema_Set) String 

func (x *Schema_Set) String() string

type Schema_Set_Entry 

type Schema_Set_Entry struct {

	// Markdown-formatted documentation for this schema entry.
	Doc   string `protobuf:"bytes,1,opt,name=doc,proto3" json:"doc,omitempty"`
	Token string `protobuf:"bytes,2,opt,name=token,proto3" json:"token,omitempty"`
	// contains filtered or unexported fields
}

func (*Schema_Set_Entry) Descriptor deprecated 

func (*Schema_Set_Entry) Descriptor() ([]byte, []int)

Deprecated: Use Schema_Set_Entry.ProtoReflect.Descriptor instead.

func (*Schema_Set_Entry) GetDoc 

func (x *Schema_Set_Entry) GetDoc() string

func (*Schema_Set_Entry) GetToken 

func (x *Schema_Set_Entry) GetToken() string

func (*Schema_Set_Entry) ProtoMessage 

func (*Schema_Set_Entry) ProtoMessage()

func (*Schema_Set_Entry) ProtoReflect 

func (x *Schema_Set_Entry) ProtoReflect() protoreflect.Message

func (*Schema_Set_Entry) Reset 

func (x *Schema_Set_Entry) Reset()

func (*Schema_Set_Entry) String 

func (x *Schema_Set_Entry) String() string

type Schema_Str 

type Schema_Str struct {
	Str *Schema_Sequence `protobuf:"bytes,5,opt,name=str,proto3,oneof"`
}

type Schema_Uint 

type Schema_Uint struct {
	Uint *Schema_Atom `protobuf:"bytes,2,opt,name=uint,proto3,oneof"`
}

type Specifier 

type Specifier struct {
	TemplateName string            `protobuf:"bytes,1,opt,name=template_name,json=templateName,proto3" json:"template_name,omitempty"`
	Params       map[string]*Value `` /* 153-byte string literal not displayed */
	// contains filtered or unexported fields
}

func (*Specifier) Descriptor deprecated 

func (*Specifier) Descriptor() ([]byte, []int)

Deprecated: Use Specifier.ProtoReflect.Descriptor instead.

func (*Specifier) GetParams 

func (x *Specifier) GetParams() map[string]*Value

func (*Specifier) GetTemplateName 

func (x *Specifier) GetTemplateName() string

func (*Specifier) Normalize 

func (s *Specifier) Normalize() error

Normalize will normalize this Specifier

func (*Specifier) ProtoMessage 

func (*Specifier) ProtoMessage()

func (*Specifier) ProtoReflect 

func (x *Specifier) ProtoReflect() protoreflect.Message

func (*Specifier) Reset 

func (x *Specifier) Reset()

func (*Specifier) String 

func (x *Specifier) String() string

type Value 

type Value struct {

	// Types that are assignable to Value:
	//
	//	*Value_Int
	//	*Value_Uint
	//	*Value_Float
	//	*Value_Bool
	//	*Value_Str
	//	*Value_Bytes
	//	*Value_Object
	//	*Value_Array
	//	*Value_Null
	Value isValue_Value `protobuf_oneof:"value"`
	// contains filtered or unexported fields
}

Value defines a specific value for a parameter, and is used at Template expansion time.

func MustNewValue 

func MustNewValue(v any) *Value

MustNewValue creates a new *Value wrapping v, and panics if v is a bad type

func NewValue 

func NewValue(v any) (*Value, error)

NewValue creates a new *Value wrapping v.

Allowed types are:

  • Any of the explicit *Value_Int - style types
  • nil -> Null
  • string -> String
  • []byte -> Bytes
  • int, int8, int16, int32, int64 -> Integer
  • uint, uint8, uint16, uint32, uint64 -> Unsigned
  • float32, float64 -> Float
  • bool -> Boolean
  • map[string]any -> Object
  • []any -> Array

func (*Value) Check 

func (v *Value) Check(s *Schema) error

Check ensures that this value conforms to the given schema.

func (*Value) Descriptor deprecated 

func (*Value) Descriptor() ([]byte, []int)

Deprecated: Use Value.ProtoReflect.Descriptor instead.

func (*Value) GetArray 

func (x *Value) GetArray() string

func (*Value) GetBool 

func (x *Value) GetBool() bool

func (*Value) GetBytes 

func (x *Value) GetBytes() []byte

func (*Value) GetFloat 

func (x *Value) GetFloat() float64

func (*Value) GetInt 

func (x *Value) GetInt() int64

func (*Value) GetNull 

func (x *Value) GetNull() *emptypb.Empty

func (*Value) GetObject 

func (x *Value) GetObject() string

func (*Value) GetStr 

func (x *Value) GetStr() string

func (*Value) GetUint 

func (x *Value) GetUint() uint64

func (*Value) GetValue 

func (m *Value) GetValue() isValue_Value

func (*Value) IsNull 

func (v *Value) IsNull() bool

IsNull returns true if this Value is the null value.

func (*Value) JSONRender 

func (v *Value) JSONRender() string

JSONRender returns the to-be-injected string rendering of v.

func (*Value) Normalize 

func (v *Value) Normalize() error

Normalize returns a non-nil error if the Value is invalid for its nominal type.

func (*Value) ProtoMessage 

func (*Value) ProtoMessage()

func (*Value) ProtoReflect 

func (x *Value) ProtoReflect() protoreflect.Message

func (*Value) Reset 

func (x *Value) Reset()

func (*Value) String 

func (x *Value) String() string

type Value_Array 

type Value_Array struct {
	Array string `protobuf:"bytes,8,opt,name=array,proto3,oneof"`
}

func (*Value_Array) Check 

func (v *Value_Array) Check(schema *Schema) error

Check returns nil iff this Value correctly parses as a JSON array.

func (*Value_Array) JSONRender 

func (v *Value_Array) JSONRender() string

JSONRender returns a rendering of this JSON array as JSON. This is a direct return of the JSON encoded string; no validation is done. To check that the contained string is valid, use the Valid() method.

func (*Value_Array) Normalize 

func (v *Value_Array) Normalize() error

Normalize returns nil iff this Value correctly parses as a JSON array.

type Value_Bool 

type Value_Bool struct {
	Bool bool `protobuf:"varint,4,opt,name=bool,proto3,oneof"`
}

func (*Value_Bool) JSONRender 

func (v *Value_Bool) JSONRender() string

JSONRender returns a rendering of this bool as JSON, e.g. go value true renders as `true`.

type Value_Bytes 

type Value_Bytes struct {
	Bytes []byte `protobuf:"bytes,6,opt,name=bytes,proto3,oneof"`
}

func (*Value_Bytes) Check 

func (v *Value_Bytes) Check(schema *Schema) error

Check returns nil iff this Value meets the max length criteria.

func (*Value_Bytes) JSONRender 

func (v *Value_Bytes) JSONRender() string

JSONRender returns a rendering of these bytes as JSON, e.g. go value []byte("foo") renders as `"Zm9v"`.

type Value_Float 

type Value_Float struct {
	Float float64 `protobuf:"fixed64,3,opt,name=float,proto3,oneof"`
}

func (*Value_Float) JSONRender 

func (v *Value_Float) JSONRender() string

JSONRender returns a rendering of this float as JSON, e.g. go value 1.23 renders as `1.23`.

type Value_Int 

type Value_Int struct {
	Int int64 `protobuf:"varint,1,opt,name=int,proto3,oneof"`
}

func (*Value_Int) JSONRender 

func (v *Value_Int) JSONRender() string

JSONRender returns a rendering of this int as JSON, e.g. go value 100 renders as `100`. If the absolute value is > 2**53, this will render it as a string.

Integers render as strings to avoid encoding issues in JSON, which only supports double-precision floating point numbers.

type Value_Null 

type Value_Null struct {
	Null *emptypb.Empty `protobuf:"bytes,9,opt,name=null,proto3,oneof"`
}

func (*Value_Null) JSONRender 

func (v *Value_Null) JSONRender() string

JSONRender returns a rendering of null. This always returns `null`.

type Value_Object 

type Value_Object struct {
	Object string `protobuf:"bytes,7,opt,name=object,proto3,oneof"`
}

func (*Value_Object) Check 

func (v *Value_Object) Check(schema *Schema) error

Check returns nil iff this Value correctly parses as a JSON object.

func (*Value_Object) JSONRender 

func (v *Value_Object) JSONRender() string

JSONRender returns a rendering of this JSON object as JSON. This is a direct return of the JSON encoded string; no validation is done. To check that the contained string is valid, use the Valid() method.

func (*Value_Object) Normalize 

func (v *Value_Object) Normalize() error

Normalize returns nil iff this Value correctly parses as a JSON object.

type Value_Str 

type Value_Str struct {
	Str string `protobuf:"bytes,5,opt,name=str,proto3,oneof"`
}

func (*Value_Str) Check 

func (v *Value_Str) Check(schema *Schema) error

Check returns nil iff this Value meets the max length criteria, and/or can be used to fill an enumeration value from the provided schema.

func (*Value_Str) JSONRender 

func (v *Value_Str) JSONRender() string

JSONRender returns a rendering of this string as JSON, e.g. go value "foo" renders as `"foo"`.

type Value_Uint 

type Value_Uint struct {
	Uint uint64 `protobuf:"varint,2,opt,name=uint,proto3,oneof"`
}

func (*Value_Uint) JSONRender 

func (v *Value_Uint) JSONRender() string

JSONRender returns a rendering of this uint as JSON, e.g. go value 100 renders as `"100"`.

Unsigns render as strings to avoid encoding issues in JSON, which only supports double-precision floating point numbers.

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