core

package
v0.0.0-...-f022186 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: May 29, 2024 License: MIT Imports: 43 Imported by: 0

Documentation

Index

Examples

Constants

View Source 
const (
	EACH0 = 1
	EACH1 = 2
)

values for ArgSpec.Each

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const (
	Sig0 byte = iota + 1
	Sig1
	Sig2
	Sig3
	Sig4
)
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const (
	AsEach = iota + 5
	AsEach1
	AsBlock
)
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const (
	TsInitialBatch = 5
	TsThreshold    = 500
)

For timestamps with milliseconds up to TsThreshold, a client is allowed to increment the milliseconds TsInitialBatch times before requesting another timestamp. For timestamps with milliseconds >= TsThreshold, a client should use SuTimestamp incrementing extra. These values must match jSuneido.

View Source 
const (
	PackFalse = iota
	PackTrue
	PackMinus
	PackPlus
	PackString
	PackDate
	PackObject
	PackRecord
)

Packed values start with one of the following type tags, except for the special case of a zero length string which is encoded as a zero length buffer. NOTE: this order is significant, it determines sorting

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const E10 = uint64(1e10)
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const E12 = uint64(1e12)
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const E14 = uint64(1e14)
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const E2 = uint64(1e2)
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const E4 = uint64(1e4)
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const E6 = uint64(1e6)
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const E8 = uint64(1e8)
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const GnSuneido = 1
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const MaxArgs = 200

MaxArgs is the maximum number of arguments allowed

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const MaxInstantiate = MaxSuInt
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const MaxSuInt = math.MaxInt16
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const MaxValues = 0x3fff
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const MinSuInt = math.MinInt16

Variables

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var ArgSpec0 = ArgSpec{Nargs: 0, Signature: Sig0}
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var ArgSpec1 = ArgSpec{Nargs: 1, Signature: Sig1}
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var ArgSpec2 = ArgSpec{Nargs: 2, Signature: Sig2}
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var ArgSpec3 = ArgSpec{Nargs: 3, Signature: Sig3}
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var ArgSpec4 = ArgSpec{Nargs: 4, Signature: Sig4}
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var ArgSpecBlock = ArgSpec{Nargs: 1,
	Spec: []byte{0}, Names: []Value{SuStr("block")}}
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var ArgSpecEach0 = ArgSpec{Nargs: 1, Each: EACH0}
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var ArgSpecEach1 = ArgSpec{Nargs: 1, Each: EACH1}
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var BlockBreak = BuiltinSuExcept("block:break")
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var BlockContinue = BuiltinSuExcept("block:continue")
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var BlockReturn = BuiltinSuExcept("block return")
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var DateBegin = NewDate(1700, 1, 1, 0, 0, 0, 0)
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var DateEnd = NewDate(3000, 1, 1, 0, 0, 0, 0)
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var DbmsAuth = false
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var DefaultNewMethod = &SuBuiltin0{func() Value { return nil },
	BuiltinParams{ParamSpec: ParamSpec0}}
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var DefaultSingleQuotes = false
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var EmptyObject = &SuObject{readonly: true}

EmptyObject is a readonly empty SuObject

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var Exit func(code int)

Exit is injected by gSuneido

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var GetDbms func() IDbms

GetDbms requires dependency injection

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var Global typeGlobal

Global is used to group the global methods Would be cleaner to use a package but awkward dependencies. This approach doesn't seem to add any overhead.

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var Interrupt func() bool // injected
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var Libload = func(*Thread, string) (Value, any) { return nil, nil }

Libload requires dependency injection

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var LibraryOverrides = &libraryOverrides{
	overrides: make(map[string]libOver),
	originals: make(map[string]Value)}
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var LibsList atomics.Value[[]string]

LibsList is used by libload

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var ParamSpec0 = ParamSpec{Nparams: 0, Signature: ^Sig0}
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var ParamSpec1 = ParamSpec{Nparams: 1, Signature: ^Sig1}
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var ParamSpec2 = ParamSpec{Nparams: 2, Signature: ^Sig2}
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var ParamSpecAt = ParamSpec{Nparams: 1, Flags: []Flag{AtParam}}
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var ParamSpecOptionalBlock = ParamSpec{Nparams: 1, Ndefaults: 1,
	Flags: []Flag{0}, Names: []string{"block"}, Values: []Value{False}}
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var RunOnGoSide func() // injected
View Source 
var StdArgSpecs = [...]ArgSpec{
	ArgSpec0,
	ArgSpec1,
	ArgSpec2,
	ArgSpec3,
	ArgSpec4,
	ArgSpecEach0,
	ArgSpecEach1,
	ArgSpecBlock,
}

Functions

func AddInfo 

func AddInfo(name string, ref any) struct{}

AddInfo registers a reference to a value. It is NOT thread-safe and should only be called during initialization. ref's should be thread-safe. The return type is to allow var _ = AddInfo("name", ref)

func Alert 

func Alert(args ...any)

func AlertCancel 

func AlertCancel(args ...any) bool

func AsStr 

func AsStr(x Value) string

AsStr converts SuBool, SuInt, SuDnum, SuStr, SuConcat, SuExcept to string. Calls Value.AsStr and panics if it fails

func CompareSuTimestamp 

func CompareSuTimestamp(d1, d2 SuTimestamp) int

func Disasm 

func Disasm(fn *SuFunc, out outfn)

Disasm calls out for each disassembled byte code instruction in fn

func DisasmMixed 

func DisasmMixed(fn *SuFunc, src string) string

DisasmMixed returns a listing of the source and its disassembled byte code

func DisasmOps 

func DisasmOps(fn *SuFunc) string

DisasmOps returns the disassembled byte code for fn

func DisasmRaw 

func DisasmRaw(code string, fn func(i int))

func Display 

func Display(th *Thread, val Value) string

func EqualRows 

func EqualRows(hdr1 *Header, r1 Row, hdr2 *Header, r2 Row, cols []string,
	th *Thread, st *SuTran) bool

EqualRows is used by Compatible

func ErrType 

func ErrType(x Value) string

ErrType tweaks the Type to match cSuneido

func Fatal 

func Fatal(args ...any)

func Fatal2 

func Fatal2(string)

func IfInt 

func IfInt(x Value) int

IfInt converts SuInt, SuDnum to int. Calls Value.IfInt and panics if it fails

func InfoList 

func InfoList() []string

func InstantiateMax 

func InstantiateMax(n int)

func LogInternalError 

func LogInternalError(th *Thread, from string, e any)

LogInternalError logs the error and the call stacks, if an InternalError. It is used by dbmsserver

func LogUncaught 

func LogUncaught(th *Thread, where string, e any)

func OpBool 

func OpBool(x Value) bool

func Pack 

func Pack(x Packable) string

Pack is a convenience function that packs a single Packable.

WARNING: It's possible to get a buffer overflow if a mutable value (e.g. object) is modified between/during PackSize and Pack.

func Pack2 

func Pack2(x Packable) *pack.Encoder

func PackSize 

func PackSize(v Value) int

PackSize returns the pack size of the value if it is Packable, else it panics

func PackValue 

func PackValue(v Value) string

PackValue packs a Value if it is Packable, else it panics

func PackedCmpLower 

func PackedCmpLower(s1, s2 string) int

PackedCmpLower compares strings with str.CmpLower and other values with strings.Compare

func PackedToLower 

func PackedToLower(s string) string

PackedToLower applies str.ToLower to packed strings. Other types of values are unchanged.

func PrintStack 

func PrintStack(cs *SuObject)

func RecLen 

func RecLen(r []byte) int

func Show 

func Show(v Value) string

Show is .String() plus for classes it shows their contents for functions it shows their parameters for containers it sorts by member

func SuInt 

func SuInt(n int) *smi

SuInt converts an int to *smi which implements Value will panic if out of int16 range

Example 
v := SuInt(123)
fmt.Printf("%d %s\n", v.toInt(), v.String())

Output:

123 123

func SuIntToInt 

func SuIntToInt(x any) (int, bool)

SuIntToInt converts to int if its argument is *smi

func ToBool 

func ToBool(x Value) bool

func ToDnum 

func ToDnum(x Value) dnum.Dnum

ToDnum converts false (SuBool), "" (SuStr), SuInt, SuDnum to Dnum. Calls Value.ToDnum and panics if it fails

func ToIndex 

func ToIndex(key Value) int

ToIndex is used by ranges and string[i]

func ToInt 

func ToInt(x Value) int

ToInt converts false (SuBool), "" (SuStr), SuInt, SuDnum to int. Calls Value.ToInt and panics if it fails

func ToInt64 

func ToInt64(x Value) int64

ToInt64 does ToDnum and ToInt64 and panics if it fails

func ToStr 

func ToStr(x Value) string

ToStr converts SuStr, SuConcat, SuExcept to string. Calls Value.ToStr and panics if it fails

func ToStrOrString 

func ToStrOrString(x Value) string

ToStrOrString returns either ToStr() or String() i.e. strings won't have quotes

func Unquoted 

func Unquoted(k Value) string

func Warning 

func Warning(args ...any)

func WithType 

func WithType(x Value) string

WithType is used by the repl

func WrapPanic 

func WrapPanic(e any, suffix string)

Types

type ActiveObserverList 

type ActiveObserverList = list.List[activeObserver]

type ArgSpec 

type ArgSpec struct {

	// Spec has one entry per named argument, indexing into Names
	Spec []byte

	// Names is the argument names from the calling function
	Names []Value

	// Nargs is the number of values on the stack.
	// Because of @args (each) it may not be the actual number of arguments.
	Nargs byte

	// Each is 1 for @args, 2 for @+1args, 0 otherwise
	Each byte

	// Signature is used for fast matching of simple Argspec to ParamSpec
	Signature byte
}

ArgSpec describes the arguments on the stack for a call See also ParamSpec

func (*ArgSpec) DropFirst 

func (as *ArgSpec) DropFirst() *ArgSpec

func (*ArgSpec) Equal 

func (as *ArgSpec) Equal(a2 *ArgSpec) bool

func (*ArgSpec) String 

func (as *ArgSpec) String() string

func (*ArgSpec) Unnamed 

func (as *ArgSpec) Unnamed() int

Unnamed returns the total number of un-named arguments. Not applicable with @args (each)

type ArgsIter 

type ArgsIter func() (Value, Value)

func NewArgsIter 

func NewArgsIter(as *ArgSpec, args []Value) ArgsIter

NewArgsIter returns an iterator function that can be called to return successive name,value pairs with name = nil for unnamed values It returns nil,nil when there are no more values

type BuiltinParams 

type BuiltinParams struct {
	ParamSpec
}

func (*BuiltinParams) String 

func (ps *BuiltinParams) String() string

func (*BuiltinParams) Type 

func (*BuiltinParams) Type() types.Type

type Callable 

type Callable interface {
	Call(th *Thread, this Value, as *ArgSpec) Value
}

Callable is returned by Lookup

func Lookup 

func Lookup(th *Thread, methods Methods, gnUserDef int, method string) Callable

Lookup looks for a method first in a methods map, and then in a global user defined class returning nil if not found in either place

func UserDef 

func UserDef(th *Thread, gnUserDef int, method string) Callable

type Container 

type Container interface {
	Value
	Add(val Value)
	ListSize() int
	ListGet(i int) Value
	NamedSize() int
	Copy() Container
	Slice(n int) Container
	DeleteAll()
	Insert(at int, val Value)
	Erase(th *Thread, key Value) bool
	Delete(th *Thread, key Value) bool
	GetIfPresent(th *Thread, key Value) Value
	IsReadOnly() bool
	SetReadOnly()
	ArgsIter() func() (Value, Value)
	Iter2(list bool, named bool) func() (Value, Value)
	HasKey(key Value) bool
	ToObject() *SuObject
	ToRecord(th *Thread, hdr *Header) Record
	IsConcurrent() Value
}

Container is an interface to objects and records

func ToContainer 

func ToContainer(x Value) Container

ToContainer converts to a Container or panics

type DbRec 

type DbRec struct {
	Record
	Off uint64
}

DbRec is a Record along with its offset

type Dir 

type Dir byte
const (
	Only Dir = '1'
	Next Dir = '+'
	Prev Dir = '-'
)

func (Dir) Reverse 

func (dir Dir) Reverse() Dir

func (Dir) String 

func (dir Dir) String() string

type Displayable 

type Displayable interface {
	Display(th *Thread) string
}

type Findable 

type Findable interface {
	// Finder applies fn to a MemBase and all its parents
	// stopping if fn returns something other than nil, and returning that value.
	// Implemented by SuClass and SuInstance
	Finder(th *Thread, fn func(v Value, mb *MemBase) Value) Value
}

type Flag 

type Flag byte

Flag is a bit set of parameter options 

const (
	AtParam Flag = 1 << iota
	DynParam
	DotParam
	PubParam
)

type Frame 

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

Frame is the context for a function/method/block invocation.

type Gnum 

type Gnum = int

Gnum is a reference to a global name/value 0 is invalid 

type Header struct {

	// Fields is the physical fields, including deleted ("-")
	Fields [][]string
	// Columns is the logical fields
	Columns []string
	// contains filtered or unexported fields
}

Header specifies the fields (physical) and columns (logical) for a query

func JoinHeaders 

func JoinHeaders(x, y *Header) *Header

JoinHeaders appends the fields, and unions the columns. It is used by Join and Union. WARNING: if field on one and rule on the other, the result will look like it's a field. See also: Header.Rules

func NewHeader 

func NewHeader(fields [][]string, columns []string) *Header

func SimpleHeader 

func SimpleHeader(fields []string) *Header

func (*Header) AppendDerived 

func (hdr *Header) AppendDerived(fields []string) []string

func (*Header) Dup 

func (hdr *Header) Dup() *Header

func (*Header) EqualRows 

func (hdr *Header) EqualRows(r1, r2 Row, th *Thread, st *SuTran) bool

EqualRows is used by Project

func (*Header) GetFields 

func (hdr *Header) GetFields() []string

GetFields returns a list of the fields, including deleted ("-"), without duplicates (e.g. from Join or Union)

func (*Header) HasDeleted 

func (hdr *Header) HasDeleted() bool

func (*Header) HasField 

func (hdr *Header) HasField(col string) bool

func (*Header) Physical 

func (hdr *Header) Physical() []string

Physical is the fields without deleted ("-")

func (*Header) Rules 

func (hdr *Header) Rules() []string

Rules is a list of the derived columns. i.e. columns that are not fields. WARNING: This is not exact after JoinHeaders (Join and Union). Rules will *not* include columns that are fields on one source and rules on the other source.

func (*Header) Schema 

func (hdr *Header) Schema() []string

Schema is GetFields() plus derived columns with rules capitalized WARNING: This is not exact with Query2. Rules will *not* include columns that are rules on one source but fields on the other source.

type HmapValue 

type HmapValue = hmap.Hmap[Value, Value, hmap.Meth[Value]]

type ICursor 

type ICursor interface {
	IQueryCursor

	// Get returns the next or previous row from a cursor
	// and its table if the query is updateable
	Get(th *Thread, tran ITran, dir Dir) (Row, string)
}

ICursor is the interface to a database query, either local or client

type IDbms 

type IDbms interface {
	// Admin executes a schema change (create, alter, drop)
	Admin(string, *Sviews)

	// Auth authorizes the connection with the server
	Auth(*Thread, string) bool

	// Check checks the database like -check
	// It returns "" or an error message.
	Check() string

	// Close ends a dbms connection
	Close()

	// Connections returns a list of the current server connections
	Connections() Value

	// Cursor is like a query but independent of any one transaction
	Cursor(query string, sv *Sviews) ICursor

	// Cursors returns the current number of cursors
	Cursors() int

	DisableTrigger(table string)
	EnableTrigger(table string)

	// Exec is used by the new style ServerEval(...)
	Exec(th *Thread, args Value) Value

	// Final returns the current number of final transactions
	Final() int

	// Get returns a single record, for Query1 (dir = One),
	// QueryFirst (dir = Next), or QueryLast (dir = Prev)
	Get(th *Thread, query string, dir Dir) (Row, *Header, string)

	// Info returns an object containing database information
	Info() Value

	// Kill terminates connections with the given session id.
	// It returns the count of connections ended.
	Kill(string) int

	// LibGet returns a list of definitions for name
	// alternating library name and definition
	// in Libraries() order
	LibGet(name string) []string

	// Libraries returns a list of the libraries currently in use
	Libraries() []string

	// Log writes to the server's error.log
	Log(string)

	// Nonce returns a random string from the server
	Nonce(*Thread) string

	// Run is used by the old style string.ServerEval()
	Run(th *Thread, code string) Value

	Schema(table string) string

	// SessionId sets and/or returns the session id for the current connection
	SessionId(th *Thread, id string) string

	// Size returns the current database size
	Size() uint64

	// Timestamp returns a guaranteed unique date/time
	Timestamp() SuDate

	// Token returns data to use with Auth
	Token() string

	// Transaction starts a transaction
	Transaction(update bool) ITran

	// Transactions returns a list of the outstanding transactions
	Transactions() *SuObject

	// Use removes a library from those in use
	Unuse(lib string) bool

	// Use adds a library to those in use
	Use(lib string) bool

	// Unwrap removes DbmsUnauth if DbmsAuth
	Unwrap() IDbms
}

IDbms is the interface to the dbms package. The two implementations, DbmsLocal and DbmsClient, are in the dbms package

type IQuery 

type IQuery interface {
	IQueryCursor

	// Get returns the next or previous row from a query
	// and its table if the query is updateable
	Get(th *Thread, dir Dir) (Row, string)

	// Output outputs a record to a query
	Output(th *Thread, rec Record)
}

IQuery is the interface to a database query, either local or client

type IQueryCursor 

type IQueryCursor interface {
	// Close ends a query
	Close()

	// Header returns the header (columns and fields) for the query
	Header() *Header

	// Keys returns the keys for the query (a list of comma separated strings)
	Keys() []string

	// Order returns the order for the query (a list of columns)
	Order() []string

	// Rewind resets the query to the beginning/end
	Rewind()

	// Strategy returns a description of the optimized query
	Strategy(formatted bool) string
}

type ISuQueryCursor 

type ISuQueryCursor interface {
	Close()
	Columns() Value
	Keys() Value
	Order() Value
	Rewind()
	RuleColumns() Value
	Strategy(formatted bool) Value
}

ISuQueryCursor is the common interface to SuQuery and SuCursor

type ITran 

type ITran interface {
	String() string

	// Abort rolls back the transaction
	Abort() string

	// Complete commits the transaction.
	// It returns "" on success, otherwise the conflict.
	Complete() string

	// Delete deletes a record
	Delete(th *Thread, table string, off uint64)

	// Get returns a single record, for Query1 (dir = One),
	// QueryFirst (dir = Next), or QueryLast (dir = Prev)
	Get(th *Thread, query string, dir Dir) (Row, *Header, string)

	// Query starts a query
	Query(query string, sv *Sviews) IQuery

	// Action executes an insert, update, or delete
	// and returns the number of records processed
	Action(th *Thread, action string) int

	// Update modifies a record
	Update(th *Thread, table string, off uint64, rec Record) uint64

	// ReadCount returns the number of reads done by the transaction
	ReadCount() int

	// WriteCount returns the number of writes done by the transaction
	WriteCount() int

	// Asof sets the date-time for the transaction if asof is non-zero,
	// and returns the date-time for the transaction,
	// with the date-times as unix milli
	Asof(int64) int64

	Num() int
}

ITran is the interface to a dbms transaction, either local (not implemented yet) or TranClient.

type Iter 

type Iter interface {
	// Next returns nil when there are no more values
	Next() Value
	// Dup returns a copy of this Iter that starts at the beginning
	Dup() Iter
	Infinite() bool
	SetConcurrent()
	IsConcurrent() Value
	Instantiate() *SuObject
}

Iter is the internal type for iterators. See also: SuIter and wrapIter.

func IterAssocs 

func IterAssocs(ob Container, list, named bool) Iter

func IterMembers 

func IterMembers(ob Container, list, named bool) Iter

func IterValues 

func IterValues(ob Container, list, named bool) Iter

type MayLock 

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

MayLock can be embedded to provide locking. concurrent is set *before* an object is shared and doesn't change after that so it should not require atomic or locked access. Before concurrent is set, no locking is done.

func (*MayLock) IsConcurrent 

func (x *MayLock) IsConcurrent() Value

func (*MayLock) Lock 

func (x *MayLock) Lock() bool

func (*MayLock) SetConc 

func (x *MayLock) SetConc() bool

SetConc returns true if it sets concurrent

func (*MayLock) SetConcurrent 

func (x *MayLock) SetConcurrent()

func (*MayLock) Unlock 

func (x *MayLock) Unlock() bool

type MemBase 

type MemBase struct {
	Data map[string]Value
	MayLock
}

MemBase is the shared base for SuClass and SuInstance

func NewMemBase 

func NewMemBase() MemBase

func (*MemBase) AddMembersTo 

func (mb *MemBase) AddMembersTo(ob *SuObject)

func (*MemBase) Copy 

func (mb *MemBase) Copy() MemBase

func (*MemBase) Has 

func (mb *MemBase) Has(m string) bool

func (*MemBase) Size 

func (mb *MemBase) Size() int

type Methods 

type Methods = map[string]Callable

Methods is a map of method name strings to Values 

var BaseMethods Methods

BaseMethods is initialized by the builtin package 

var ClassMethods Methods

ClassMethods is initialized by the builtin package 

var CursorMethods Methods

CursorMethods is initialized by the builtin package 

var DateMethods Methods

DateMethods is initialized by the builtin package 

var InstanceMethods Methods

InstanceMethods is initialized by the builtin package 

var IntMethods Methods

IntMethods is initialized by the builtin package 

var IterMethods Methods

IterMethods is set by builtin/iter.go 

var NumMethods Methods

NumMethods is initialized by the builtin package 

var ObjectMethods Methods

ObjectMethods is initialized by the builtin package 

var ParamsMethods Methods

ParamsMethods is initialized by the builtin package 

var QueryMethods Methods

QueryMethods is initialized by the builtin package 

var RecordMethods Methods

RecordMethods is initialized by the builtin package 

var RegexMethods Methods

RegexMethods is initialized by the builtin package 

var SequenceMethods Methods

SequenceMethods is initialized by the builtin package 

var StringMethods Methods

StringMethods is initialized by the builtin package 

var SuExceptMethods Methods

SuExceptMethods is initialized by the builtin package 

var SuFuncMethods Methods

SuFuncMethods is initialized by the builtin package 

var SuneidoObjectMethods Methods

SuneidoObjectMethods is initialized by builtin/suneido.go 

var TranMethods Methods

TranMethods is initialized by the builtin package

type Named 

type Named interface {
	GetName() string
}

type Ord 

type Ord int
const (
	OrdOther Ord
)

must match types

func Order 

func Order(x Value) Ord

func PackedOrd 

func PackedOrd(s string) Ord

func (Ord) String 

func (o Ord) String() string

type Packable 

type Packable interface {
	// PackSize returns the size (in bytes) of the packed value.
	// object/record set hash to detect nested changes.
	PackSize(hash *uint32) int
	// PackSize2 is used by object/record to handle nesting
	PackSize2(hash *uint32, stack packStack) int
	// Pack appends the value to the Encoder
	Pack(hash *uint32, buf *pack.Encoder)
}

Packable is the interface to packable values PackSize should be called prior to Pack since Pack methods assume capacity is sufficient and because PackSize does nesting limit check

type PackableValue 

type PackableValue interface {
	Value
	Packable
}

func DateFromLiteral 

func DateFromLiteral(s string) PackableValue

DateFromLiteral returns an SuDate or an SuTimestamp from the Suneido literal format yyyymmdd[.hhmm[ss[mmm[ccc]]]] It returns NilDate if the string is invalid.

func Int64Val 

func Int64Val(n int64) PackableValue

Int64Val returns an SuInt if it fits, else a SuDnum

func IntVal 

func IntVal(n int) PackableValue

IntVal returns an SuInt if it fits, else a SuDnum

type Packed 

type Packed string

Packed is a Packable wrapper for an already packed value

func (Packed) Pack 

func (p Packed) Pack(_ *uint32, buf *pack.Encoder)

func (Packed) PackSize 

func (p Packed) PackSize(*uint32) int

func (Packed) PackSize2 

func (p Packed) PackSize2(*uint32, packStack) int

type ParamSpec 

type ParamSpec struct {
	ValueBase[sufunction]

	// Lib is the library that the function came from
	Lib string

	// Name for library records will be the record name;
	// for class methods, the method name;
	// if assigned to a local variable, the variable name.
	// It is primarily for debugging, i.e. call stack traces.
	// See also: Name(value) builtin function
	Name string

	// Values contains any literals in the function
	// starting with parameter defaults
	Values []Value

	// Flags specifies "types" of params
	Flags []Flag

	// Names normally starts with the parameters, followed by local variables
	Names []string

	// Nparams is the number of arguments required on the stack
	Nparams uint8

	// NDefaults is the number of default values for parameters
	// They are in the start of Values
	Ndefaults uint8

	// Offset is the location of the parameter names within Names
	// and the arguments within Locals
	// It is used for closure blocks, for normal functions it is 0
	// Offset is only required for parameters (or arguments),
	// it is not needed for local variables
	Offset uint8

	// Signature is used for fast matching of simple Argspec to ParamSpec
	Signature byte
}

ParamSpec describes the parameters of a function See also ArgSpec which describes the arguments of a function call It also serves as the basis for callables like SuFunc

func (*ParamSpec) Compare 

func (ps *ParamSpec) Compare(other Value) int

func (*ParamSpec) Equal 

func (ps *ParamSpec) Equal(other any) bool

func (*ParamSpec) GetName 

func (ps *ParamSpec) GetName() string

func (*ParamSpec) Lookup 

func (*ParamSpec) Lookup(_ *Thread, method string) Callable

func (*ParamSpec) ParamName 

func (ps *ParamSpec) ParamName(i int) string

func (*ParamSpec) Params 

func (ps *ParamSpec) Params() string

func (ParamSpec) SetConcurrent 

func (ParamSpec) SetConcurrent()

func (*ParamSpec) Show 

func (ps *ParamSpec) Show() string

func (*ParamSpec) String 

func (ps *ParamSpec) String() string

type Record 

type Record string

Record is an immutable record stored in a string using the same format as cSuneido and jSuneido.

NOTE: This is the post 2019 format using a two byte header.

It is used for storing data records in the database and in dumps and for transferring data records across the client-server protocol.

An empty Record is a single zero byte.

First two bytes are the type and the count of values, high two bits are the type followed by the total length (uint8, uint16, or uint32) followed by the offsets of the fields (uint8, uint16, or uint32) followed by the contents of the fields integers are stored big endian (most significant first)

func (Record) Count 

func (r Record) Count() int

Count returns the number of values in the record

func (Record) GetRaw 

func (r Record) GetRaw(i int) string

GetRaw returns one of the (usually packed) values

func (Record) GetStr 

func (r Record) GetStr(i int) string

GetStr is a more direct method to get a packed string

func (Record) GetVal 

func (r Record) GetVal(i int) Value

GetVal is a convenience method to get and unpack

func (Record) Len 

func (r Record) Len() int

func (Record) String 

func (r Record) String() string

func (Record) Truncate 

func (r Record) Truncate(n int) Record

Truncate shortens records to n fields and removes empty trailing fields. If the record has n or less fields it is returned unchanged.

type RecordBuilder 

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

RecordBuilder is used to construct records. Zero value is ready to use.

func (*RecordBuilder) Add 

func (b *RecordBuilder) Add(p Packable) *RecordBuilder

Add appends a Packable

func (*RecordBuilder) AddRaw 

func (b *RecordBuilder) AddRaw(s string) *RecordBuilder

AddRaw appends a string containing an already packed value

func (*RecordBuilder) Build 

func (b *RecordBuilder) Build() Record

func (*RecordBuilder) Trim 

func (b *RecordBuilder) Trim() *RecordBuilder

Trim removes trailing empty fields

type Row 

type Row []DbRec

Row is the result of database queries. It is a list of DbRec so that operations e.g. join can avoid building new records.

func JoinRows 

func JoinRows(row1, row2 Row) Row

func (Row) Derived 

func (row Row) Derived() int

Derived returns the total size of the non-database records (with no offset)

func (Row) GetRaw 

func (row Row) GetRaw(hdr *Header, fld string) string

GetRaw handles _lower! but does NOT handle rules. It is used by SuRecord Get.

func (Row) GetRawVal 

func (row Row) GetRawVal(hdr *Header, fld string, th *Thread, tran *SuTran) string

GetRawVal is like GetVal (i.e. handles rules) but returns a raw/packed value.

func (Row) GetVal 

func (row Row) GetVal(hdr *Header, fld string, th *Thread, tran *SuTran) Value

GetVal is used by query summarize and expr.

  • returns "" for fld not in hdr.Columns
  • returns stored value for Fields (rule ignored)
  • calls rule for Columns not in Fields

func (Row) SameAs 

func (row Row) SameAs(row2 Row) bool

SameAs returns true if the db records have the same Off's and derived records (with Off == 0) are equal. WARNING: this is not general equality, for that see EqualRows.

type Showable 

type Showable interface {
	Show() string
}

type Status 

type Status byte
const (
	NEW Status = iota
	OLD
	DELETED
)

type SuBool 

type SuBool bool

SuBool is a boolean Value

func OpMatch 

func OpMatch(th *Thread, x Value, y Value) SuBool

func (SuBool) AsStr 

func (b SuBool) AsStr() (string, bool)

func (SuBool) Call 

func (SuBool) Call(*Thread, Value, *ArgSpec) Value

func (SuBool) Compare 

func (b SuBool) Compare(other Value) int

func (SuBool) Equal 

func (b SuBool) Equal(other any) bool

func (SuBool) Get 

func (SuBool) Get(*Thread, Value) Value

func (SuBool) GetPut 

func (SuBool) GetPut(*Thread, Value, Value, func(x, y Value) Value, bool) Value

func (SuBool) Hash 

func (b SuBool) Hash() uint32

func (SuBool) Hash2 

func (b SuBool) Hash2() uint32

func (SuBool) IfInt 

func (b SuBool) IfInt() (int, bool)

func (SuBool) Lookup 

func (SuBool) Lookup(*Thread, string) Callable

func (SuBool) Not 

func (b SuBool) Not() SuBool

func (SuBool) Pack 

func (b SuBool) Pack(_ *uint32, buf *pack.Encoder)

func (SuBool) PackSize 

func (SuBool) PackSize(*uint32) int

func (SuBool) PackSize2 

func (SuBool) PackSize2(*uint32, packStack) int

func (SuBool) Put 

func (SuBool) Put(*Thread, Value, Value)

func (SuBool) RangeLen 

func (SuBool) RangeLen(int, int) Value

func (SuBool) RangeTo 

func (SuBool) RangeTo(int, int) Value

func (SuBool) SetConcurrent 

func (SuBool) SetConcurrent()

func (SuBool) String 

func (b SuBool) String() string

func (SuBool) ToContainer 

func (SuBool) ToContainer() (Container, bool)

func (SuBool) ToDnum 

func (b SuBool) ToDnum() (dnum.Dnum, bool)

func (SuBool) ToInt 

func (b SuBool) ToInt() (int, bool)

func (SuBool) ToStr 

func (b SuBool) ToStr() (string, bool)

func (SuBool) Type 

func (SuBool) Type() types.Type

type SuBuiltin 

type SuBuiltin struct {
	Fn func(th *Thread, args []Value) Value
	BuiltinParams
}

SuBuiltin is a Value for a built in function

func (*SuBuiltin) Call 

func (b *SuBuiltin) Call(th *Thread, _ Value, as *ArgSpec) Value

type SuBuiltin0 

type SuBuiltin0 struct {
	Fn func() Value
	BuiltinParams
}

SuBuiltin0 is a Value for a builtin function with no arguments

func (*SuBuiltin0) Call 

func (b *SuBuiltin0) Call(th *Thread, _ Value, as *ArgSpec) Value

type SuBuiltin1 

type SuBuiltin1 struct {
	Fn func(a1 Value) Value
	BuiltinParams
}

SuBuiltin1 is a Value for a builtin function with one argument

func (*SuBuiltin1) Call 

func (b *SuBuiltin1) Call(th *Thread, _ Value, as *ArgSpec) Value

type SuBuiltin2 

type SuBuiltin2 struct {
	Fn func(a1, a2 Value) Value
	BuiltinParams
}

SuBuiltin2 is a Value for a builtin function with two arguments

func (*SuBuiltin2) Call 

func (b *SuBuiltin2) Call(th *Thread, _ Value, as *ArgSpec) Value

type SuBuiltin3 

type SuBuiltin3 struct {
	Fn func(a1, a2, a3 Value) Value
	BuiltinParams
}

SuBuiltin3 is a Value for a builtin function with three arguments

func (*SuBuiltin3) Call 

func (b *SuBuiltin3) Call(th *Thread, _ Value, as *ArgSpec) Value

type SuBuiltin4 

type SuBuiltin4 struct {
	Fn func(a1, a2, a3, a4 Value) Value
	BuiltinParams
}

SuBuiltin4 is a Value for a builtin function with four arguments

func (*SuBuiltin4) Call 

func (b *SuBuiltin4) Call(th *Thread, _ Value, as *ArgSpec) Value

type SuBuiltin5 

type SuBuiltin5 struct {
	Fn func(a1, a2, a3, a4, a5 Value) Value
	BuiltinParams
}

SuBuiltin5 is a Value for a builtin function with five arguments

func (*SuBuiltin5) Call 

func (b *SuBuiltin5) Call(th *Thread, _ Value, as *ArgSpec) Value

type SuBuiltin6 

type SuBuiltin6 struct {
	Fn func(a1, a2, a3, a4, a5, a6 Value) Value
	BuiltinParams
}

SuBuiltin6 is a Value for a builtin function with six arguments

func (*SuBuiltin6) Call 

func (b *SuBuiltin6) Call(th *Thread, _ Value, as *ArgSpec) Value

type SuBuiltin7 

type SuBuiltin7 struct {
	Fn func(a1, a2, a3, a4, a5, a6, a7 Value) Value
	BuiltinParams
}

func (*SuBuiltin7) Call 

func (b *SuBuiltin7) Call(th *Thread, _ Value, as *ArgSpec) Value

type SuBuiltinMethod 

type SuBuiltinMethod struct {
	Fn func(th *Thread, this Value, args []Value) Value
	BuiltinParams
}

SuBuiltinMethod is a Callable for a builtin method

func (*SuBuiltinMethod) Call 

func (b *SuBuiltinMethod) Call(th *Thread, this Value, as *ArgSpec) Value

type SuBuiltinMethod0 

type SuBuiltinMethod0 struct {
	SuBuiltin1
}

SuBuiltinMethod0 is a Callable for a builtin method with no arguments

func (*SuBuiltinMethod0) Call 

func (b *SuBuiltinMethod0) Call(th *Thread, this Value, as *ArgSpec) Value

type SuBuiltinMethod1 

type SuBuiltinMethod1 struct {
	SuBuiltin2
}

SuBuiltinMethod1 is a Callable for a builtin method with one argument

func (*SuBuiltinMethod1) Call 

func (b *SuBuiltinMethod1) Call(th *Thread, this Value, as *ArgSpec) Value

type SuBuiltinMethod2 

type SuBuiltinMethod2 struct {
	SuBuiltin3
}

SuBuiltinMethod2 is a Callable for a builtin method with two arguments

func (*SuBuiltinMethod2) Call 

func (b *SuBuiltinMethod2) Call(th *Thread, this Value, as *ArgSpec) Value

type SuBuiltinMethod3 

type SuBuiltinMethod3 struct {
	SuBuiltin4
}

SuBuiltinMethod3 is a Callable for a builtin method with two arguments

func (*SuBuiltinMethod3) Call 

func (b *SuBuiltinMethod3) Call(th *Thread, this Value, as *ArgSpec) Value

type SuBuiltinMethodRaw 

type SuBuiltinMethodRaw struct {
	Fn func(th *Thread, as *ArgSpec, this Value, args []Value) Value
	ParamSpec
}

SuBuiltinMethodRaw is a Callable for a builtin function with no massage

func (*SuBuiltinMethodRaw) Call 

func (b *SuBuiltinMethodRaw) Call(th *Thread, this Value, as *ArgSpec) Value

func (*SuBuiltinMethodRaw) Type 

func (b *SuBuiltinMethodRaw) Type() types.Type

type SuBuiltinRaw 

type SuBuiltinRaw struct {
	Fn func(th *Thread, as *ArgSpec, args []Value) Value
	BuiltinParams
}

SuBuiltinRaw is a Value for a builtin function with no massage

func (*SuBuiltinRaw) Call 

func (b *SuBuiltinRaw) Call(th *Thread, _ Value, as *ArgSpec) Value

type SuClass 

type SuClass struct {
	ValueBase[*SuClass]

	Lib  string
	Name string
	MemBase
	Base Gnum
	// contains filtered or unexported fields
}

SuClass is a user defined (Suneido language) class. Classes are read-only so there is no locking.

func (*SuClass) Call 

func (c *SuClass) Call(th *Thread, this Value, as *ArgSpec) Value

func (*SuClass) Equal 

func (c *SuClass) Equal(other any) bool

func (*SuClass) Finder 

func (c *SuClass) Finder(th *Thread, fn func(v Value, mb *MemBase) Value) Value

Finder implements Findable

func (*SuClass) Get 

func (c *SuClass) Get(th *Thread, m Value) Value

func (*SuClass) GetName 

func (c *SuClass) GetName() string

func (*SuClass) GetParents 

func (c *SuClass) GetParents() []*SuClass

func (*SuClass) IsConcurrent 

func (*SuClass) IsConcurrent() Value

func (*SuClass) Lookup 

func (c *SuClass) Lookup(th *Thread, method string) Callable

func (*SuClass) New 

func (c *SuClass) New(th *Thread, as *ArgSpec) *SuInstance

func (*SuClass) Parent 

func (c *SuClass) Parent(th *Thread) *SuClass

func (*SuClass) SetConcurrent 

func (*SuClass) SetConcurrent()

func (*SuClass) SetParents 

func (c *SuClass) SetParents(parents []*SuClass)

func (*SuClass) Show 

func (c *SuClass) Show() string

func (*SuClass) StartCoverage 

func (c *SuClass) StartCoverage(count bool)

func (*SuClass) StopCoverage 

func (c *SuClass) StopCoverage() *SuObject

func (*SuClass) String 

func (c *SuClass) String() string

func (*SuClass) Type 

func (*SuClass) Type() types.Type

type SuClosure 

type SuClosure struct {
	SuFunc
	// contains filtered or unexported fields
}

SuClosure is an instance of a closure block

func (*SuClosure) Call 

func (b *SuClosure) Call(th *Thread, this Value, as *ArgSpec) Value

func (*SuClosure) IsConcurrent 

func (b *SuClosure) IsConcurrent() Value

func (*SuClosure) SetConcurrent 

func (b *SuClosure) SetConcurrent()

func (*SuClosure) String 

func (b *SuClosure) String() string

func (*SuClosure) Type 

func (*SuClosure) Type() types.Type

type SuConcat 

type SuConcat struct {
	ValueBase[SuConcat]
	// contains filtered or unexported fields
}

SuConcat is a Value used to optimize string concatenation WARNING: zero value is not valid, use NewSuConcat

func NewSuConcat 

func NewSuConcat() SuConcat

NewSuConcat returns an empty SuConcat

func (SuConcat) Add 

func (c SuConcat) Add(s string) SuConcat

Add appends a string to an SuConcat

func (SuConcat) AsStr 

func (c SuConcat) AsStr() (string, bool)

func (SuConcat) Call 

func (c SuConcat) Call(th *Thread, this Value, as *ArgSpec) Value

func (SuConcat) Compare 

func (c SuConcat) Compare(other Value) int

func (SuConcat) Equal 

func (c SuConcat) Equal(other any) bool

func (SuConcat) Get 

func (c SuConcat) Get(_ *Thread, key Value) Value

Get returns the character at a given index

func (SuConcat) Hash 

func (c SuConcat) Hash() uint32

func (SuConcat) Hash2 

func (c SuConcat) Hash2() uint32

func (SuConcat) IsConcurrent 

func (c SuConcat) IsConcurrent() Value

func (SuConcat) Iter 

func (c SuConcat) Iter() Iter

func (SuConcat) Len 

func (c SuConcat) Len() int

Len returns the length of an SuConcat

func (SuConcat) Lookup 

func (SuConcat) Lookup(th *Thread, method string) Callable

func (SuConcat) Pack 

func (c SuConcat) Pack(_ *uint32, buf *pack.Encoder)

func (SuConcat) PackSize 

func (c SuConcat) PackSize(*uint32) int

func (SuConcat) PackSize2 

func (c SuConcat) PackSize2(*uint32, packStack) int

func (SuConcat) RangeLen 

func (c SuConcat) RangeLen(from int, n int) Value

func (SuConcat) RangeTo 

func (c SuConcat) RangeTo(from int, to int) Value

func (SuConcat) SetConcurrent 

func (c SuConcat) SetConcurrent()

func (SuConcat) String 

func (c SuConcat) String() string

String returns a quoted string

func (SuConcat) ToDnum 

func (c SuConcat) ToDnum() (dnum.Dnum, bool)

func (SuConcat) ToInt 

func (c SuConcat) ToInt() (int, bool)

func (SuConcat) ToStr 

func (c SuConcat) ToStr() (string, bool)

func (SuConcat) Type 

func (SuConcat) Type() types.Type

type SuCursor 

type SuCursor struct {
	ValueBase[SuCursor]
	SuQueryCursor
}

func NewSuCursor 

func NewSuCursor(th *Thread, query string, icursor ICursor) *SuCursor

func (*SuCursor) Equal 

func (q *SuCursor) Equal(other any) bool

func (*SuCursor) GetRec 

func (q *SuCursor) GetRec(th *Thread, tran *SuTran, dir Dir) Value

func (*SuCursor) Lookup 

func (q *SuCursor) Lookup(_ *Thread, method string) Callable

func (*SuCursor) SetConcurrent 

func (*SuCursor) SetConcurrent()

func (*SuCursor) String 

func (q *SuCursor) String() string

func (*SuCursor) Type 

func (*SuCursor) Type() types.Type

type SuDate 

type SuDate struct {
	ValueBase[SuDate]
	// contains filtered or unexported fields
}

SuDate is a Suneido date/time Value

Represents a readable "local" date and time. Does not take into account time zones or daylight savings.

It is designed to be efficient to pack and unpack and to convert to human readable formats. (Calculations are less common.) 

var NilDate SuDate

func DateTime 

func DateTime(date uint32, time uint32) SuDate

func FromGoTime 

func FromGoTime(t time.Time) SuDate

func NewDate 

func NewDate(yr int, mon int, day int, hr int, min int, sec int, ms int) SuDate

NewDate returns a SuDate value, month is 1-12, day is 1-31

func NormalizeDate 

func NormalizeDate(yr int, mon int, day int, hr int, min int, sec int, ms int) SuDate

func Now 

func Now() SuDate

Now returns a SuDate for the current local date & time

func ParseDate 

func ParseDate(s string, order string) SuDate

ParseDate converts a human readable date to a SuDate.

Returns NilDate if it fails.

func SuDateFromUnixMilli 

func SuDateFromUnixMilli(t int64) SuDate

func (SuDate) AddMs 

func (d SuDate) AddMs(ms int) SuDate

AddMs is used by Timestamp. It will usually be faster than Plus

func (SuDate) Compare 

func (d SuDate) Compare(other Value) int

func (SuDate) Day 

func (d SuDate) Day() int

func (SuDate) Equal 

func (d SuDate) Equal(other any) bool

func (SuDate) Format 

func (d SuDate) Format(fmt string) string

Format converts the date to a string in the specified format

func (SuDate) Hash 

func (d SuDate) Hash() uint32

func (SuDate) Hash2 

func (d SuDate) Hash2() uint32

func (SuDate) Hour 

func (d SuDate) Hour() int

func (SuDate) Lookup 

func (SuDate) Lookup(th *Thread, method string) Callable

func (SuDate) Millisecond 

func (d SuDate) Millisecond() int

func (SuDate) MinusDays 

func (d SuDate) MinusDays(other SuDate) int

MinusDays returns the difference between two Dates in days

func (SuDate) MinusMs 

func (d SuDate) MinusMs(other SuDate) int64

MinusMs returns the difference between two Dates in milliseconds

WARNING: doing this around daylight savings changes may be problematic

func (SuDate) Minute 

func (d SuDate) Minute() int

func (SuDate) Month 

func (d SuDate) Month() int

func (SuDate) Pack 

func (d SuDate) Pack(_ *uint32, buf *pack.Encoder)

Pack packs into the supplied byte slice (Packable interface)

func (SuDate) PackSize 

func (SuDate) PackSize(*uint32) int

PackSize returns the packed size (Packable interface)

func (SuDate) PackSize2 

func (SuDate) PackSize2(*uint32, packStack) int

func (SuDate) Plus 

func (d SuDate) Plus(yr int, mon int, day int, hr int, min int, sec int, ms int) SuDate

func (SuDate) Second 

func (d SuDate) Second() int

func (SuDate) SetConcurrent 

func (SuDate) SetConcurrent()

func (SuDate) String 

func (d SuDate) String() string

func (SuDate) ToGoTime 

func (d SuDate) ToGoTime() time.Time

func (SuDate) Type 

func (SuDate) Type() types.Type

func (SuDate) UnixMilli 

func (d SuDate) UnixMilli() int64

UnixMilli returns the time in milliseconds since 1 Jan 1970

func (SuDate) WeekDay 

func (d SuDate) WeekDay() int

WeekDay returns the day of the week - Sun is 0, Sat is 6

func (SuDate) WithoutMs 

func (d SuDate) WithoutMs() SuDate

func (SuDate) Year 

func (d SuDate) Year() int

type SuDnum 

type SuDnum struct {
	ValueBase[SuDnum]
	dnum.Dnum
}

SuDnum wraps a Dnum and implements Value and Packable

func (SuDnum) AsStr 

func (dn SuDnum) AsStr() (string, bool)

func (SuDnum) Compare 

func (dn SuDnum) Compare(other Value) int

func (SuDnum) Equal 

func (dn SuDnum) Equal(other any) bool

func (SuDnum) Hash 

func (dn SuDnum) Hash() uint32

func (SuDnum) Hash2 

func (dn SuDnum) Hash2() uint32

func (SuDnum) IfInt 

func (dn SuDnum) IfInt() (int, bool)

func (SuDnum) Lookup 

func (SuDnum) Lookup(th *Thread, method string) Callable

func (SuDnum) Pack 

func (dn SuDnum) Pack(_ *uint32, buf *pack.Encoder)

func (SuDnum) PackSize 

func (dn SuDnum) PackSize(*uint32) int

func (SuDnum) PackSize2 

func (dn SuDnum) PackSize2(*uint32, packStack) int

func (SuDnum) SetConcurrent 

func (SuDnum) SetConcurrent()

func (SuDnum) String 

func (dn SuDnum) String() string

func (SuDnum) ToDnum 

func (dn SuDnum) ToDnum() (dnum.Dnum, bool)

func (SuDnum) ToInt 

func (dn SuDnum) ToInt() (int, bool)

func (SuDnum) Type 

func (SuDnum) Type() types.Type

type SuExcept 

type SuExcept struct {
	Callstack *SuObject
	SuStr
}

func BuiltinSuExcept 

func BuiltinSuExcept(s string) *SuExcept

BuiltinSuExcept is for special values for block break, continue, return

func NewSuExcept 

func NewSuExcept(th *Thread, s SuStr) *SuExcept

func OpCatch 

func OpCatch(th *Thread, e any, catchPat string) *SuExcept

func ToSuExcept 

func ToSuExcept(th *Thread, e any) *SuExcept

ToSuExcept converts to SuExcept, and also logs runtime and assert errors

func (*SuExcept) Lookup 

func (*SuExcept) Lookup(th *Thread, method string) Callable

func (*SuExcept) SetConcurrent 

func (e *SuExcept) SetConcurrent()

func (*SuExcept) Type 

func (*SuExcept) Type() types.Type

type SuFunc 

type SuFunc struct {

	// Code is the actual byte code
	Code string

	// ClassName is used to privatize dot params
	ClassName string

	// SrcPos contains pairs of source and code position deltas
	SrcPos string

	// ArgSpecs used by calls in the code
	ArgSpecs []ArgSpec

	ParamSpec

	// SrcBase is the starting point for the SrcPos source deltas
	SrcBase int

	// Nlocals is the number of parameters and local variables
	Nlocals uint8

	IsBlock bool
	// contains filtered or unexported fields
}

SuFunc is a compiled Suneido function, method, or block

func (*SuFunc) Call 

func (f *SuFunc) Call(th *Thread, this Value, as *ArgSpec) Value

func (*SuFunc) CodeToSrcPos 

func (f *SuFunc) CodeToSrcPos(ip int) int

func (*SuFunc) Lookup 

func (*SuFunc) Lookup(_ *Thread, method string) Callable

func (*SuFunc) StartCoverage 

func (f *SuFunc) StartCoverage(count bool)

func (*SuFunc) StopCoverage 

func (f *SuFunc) StopCoverage() *SuObject

func (*SuFunc) String 

func (f *SuFunc) String() string

func (*SuFunc) Type 

func (f *SuFunc) Type() types.Type

type SuInstance 

type SuInstance struct {
	ValueBase[*SuInstance]

	MemBase
	// contains filtered or unexported fields
}

SuInstance is an instance of an SuClass

func NewInstance 

func NewInstance(th *Thread, class *SuClass) *SuInstance

func (*SuInstance) Base 

func (ob *SuInstance) Base() *SuClass

func (*SuInstance) Call 

func (ob *SuInstance) Call(th *Thread, _ Value, as *ArgSpec) Value

func (*SuInstance) Clear 

func (ob *SuInstance) Clear()

func (*SuInstance) Copy 

func (ob *SuInstance) Copy() *SuInstance

func (*SuInstance) Delete 

func (ob *SuInstance) Delete(key Value)

func (*SuInstance) Equal 

func (ob *SuInstance) Equal(other any) bool

Equal uses deepEqual if both instances have UseDeepEquals, otherwise it uses reference/pointer equality like Same?

func (*SuInstance) Finder 

func (ob *SuInstance) Finder(_ *Thread, fn func(Value, *MemBase) Value) Value

Finder implements Findable

func (*SuInstance) Get 

func (ob *SuInstance) Get(th *Thread, m Value) Value

func (*SuInstance) GetPut 

func (ob *SuInstance) GetPut(th *Thread, m Value, v Value,
	op func(x, y Value) Value, retOrig bool) Value

func (*SuInstance) Lookup 

func (ob *SuInstance) Lookup(th *Thread, method string) Callable

func (*SuInstance) Put 

func (ob *SuInstance) Put(_ *Thread, m Value, v Value)

func (*SuInstance) SetConcurrent 

func (ob *SuInstance) SetConcurrent()

func (*SuInstance) String 

func (ob *SuInstance) String() string

func (*SuInstance) ToString 

func (ob *SuInstance) ToString(th *Thread) string

ToString is used by Cat, Display, and Print to handle user defined ToString

func (*SuInstance) Type 

func (*SuInstance) Type() types.Type

type SuIter 

type SuIter struct {
	ValueBase[SuIter]
	Iter
}

SuIter is a Value that wraps a runtime.Iter and provides the Suneido interator interface (Next,Dup,Infinite) returning itself when it reaches the end

func OpIter 

func OpIter(x Value) SuIter

func (SuIter) Equal 

func (it SuIter) Equal(other any) bool

func (SuIter) IsConcurrent 

func (it SuIter) IsConcurrent() Value

func (SuIter) Lookup 

func (SuIter) Lookup(_ *Thread, method string) Callable

func (SuIter) SetConcurrent 

func (it SuIter) SetConcurrent()

func (SuIter) Type 

func (SuIter) Type() types.Type

type SuMethod 

type SuMethod struct {
	ValueBase[SuMethod]
	// contains filtered or unexported fields
}

SuMethod is a bound method originating from an SuClass or SuInstance when called, it sets 'this' to the origin

func NewSuMethod 

func NewSuMethod(this Value, fn Value) *SuMethod

func (*SuMethod) Call 

func (m *SuMethod) Call(th *Thread, _ Value, as *ArgSpec) Value

func (*SuMethod) Equal 

func (m *SuMethod) Equal(other any) bool

Equal returns true if two methods have the same fn and this

func (*SuMethod) GetFn 

func (m *SuMethod) GetFn() Value

func (*SuMethod) GetName 

func (m *SuMethod) GetName() string

func (*SuMethod) Lookup 

func (m *SuMethod) Lookup(th *Thread, method string) Callable

Lookup is used for .Params or .Disasm

func (*SuMethod) SetConcurrent 

func (m *SuMethod) SetConcurrent()

func (*SuMethod) String 

func (m *SuMethod) String() string

func (*SuMethod) Type 

func (*SuMethod) Type() types.Type

type SuObject 

type SuObject struct {
	ValueBase[SuObject]
	// contains filtered or unexported fields
}

SuObject is a Suneido object i.e. a container with both list and named members. Zero value is a valid empty object.

func InstantiateIter 

func InstantiateIter(iter Iter) *SuObject

func NewSuObject 

func NewSuObject(args []Value) *SuObject

NewSuObject creates an SuObject from a slice of Value's

func SuObjectOf 

func SuObjectOf(args ...Value) *SuObject

SuObjectOf returns an SuObject from its arguments

func SuObjectOfArgs 

func SuObjectOfArgs(args []Value, as *ArgSpec) *SuObject

SuObjectOfArgs is used by massage and lrucache

func SuObjectOfStrs 

func SuObjectOfStrs(strs []string) *SuObject

SuObjectOfStrs returns an SuObject from a slice of strings

func UnpackObject 

func UnpackObject(s string) *SuObject

func (*SuObject) Add 

func (ob *SuObject) Add(val Value)

Add appends a value to the list portion

func (*SuObject) ArgsIter 

func (ob *SuObject) ArgsIter() func() (Value, Value)

ArgsIter is similar to Iter2 but it returns a nil key for list elements

func (*SuObject) BinarySearch 

func (ob *SuObject) BinarySearch(value Value) int

BinarySearch does a binary search with default comparisons

func (*SuObject) BinarySearch2 

func (ob *SuObject) BinarySearch2(th *Thread, value, lt Value) int

BinarySearch2 does a binary search with a user specified less than function

func (*SuObject) Call 

func (*SuObject) Call(*Thread, Value, *ArgSpec) Value

func (*SuObject) Compare 

func (ob *SuObject) Compare(other Value) int

Compare compares only list values (not named)

func (*SuObject) Copy 

func (ob *SuObject) Copy() Container

func (*SuObject) Delete 

func (ob *SuObject) Delete(_ *Thread, key Value) bool

Delete removes a key. If in the list, following list values are shifted over.

func (*SuObject) DeleteAll 

func (ob *SuObject) DeleteAll()

DeleteAll removes all the contents of the object, making it empty (size 0)

func (*SuObject) Display 

func (ob *SuObject) Display(th *Thread) string

func (*SuObject) Equal 

func (ob *SuObject) Equal(other any) bool

func (*SuObject) Erase 

func (ob *SuObject) Erase(_ *Thread, key Value) bool

Erase removes a key. If in the list, following list values are NOT shifted over.

func (*SuObject) Find 

func (ob *SuObject) Find(val Value) Value

Find returns the key of the first occurrence of the value else False. Lock to avoid object-modified-during-iteration.

func (*SuObject) Get 

func (ob *SuObject) Get(_ *Thread, key Value) Value

Get returns the value associated with a key, or defval if not found

func (*SuObject) GetIfPresent 

func (ob *SuObject) GetIfPresent(_ *Thread, key Value) Value

func (*SuObject) GetPut 

func (ob *SuObject) GetPut(_ *Thread, m, v Value,
	op func(x, y Value) Value, retOrig bool) Value

func (*SuObject) HasKey 

func (ob *SuObject) HasKey(key Value) bool

HasKey returns true if the object contains the given key (not value)

func (*SuObject) Hash 

func (ob *SuObject) Hash() uint32

func (*SuObject) Hash2 

func (ob *SuObject) Hash2() uint32

Hash2 is shallow to prevents infinite recursion and deadlock

func (*SuObject) Insert 

func (ob *SuObject) Insert(at int, val Value)

Insert inserts at the given position. If the position is within the list, following values are moved over.

func (*SuObject) IsConcurrent 

func (ob *SuObject) IsConcurrent() Value

func (*SuObject) IsReadOnly 

func (ob *SuObject) IsReadOnly() bool

func (*SuObject) Iter 

func (ob *SuObject) Iter() Iter

func (*SuObject) Iter2 

func (ob *SuObject) Iter2(list, named bool) func() (Value, Value)

Iter2 iterates through list and named elements. List elements are returned with their numeric key index.

func (*SuObject) ListGet 

func (ob *SuObject) ListGet(i int) Value

ListGet returns a value from the list, panics if index out of range

func (*SuObject) ListSize 

func (ob *SuObject) ListSize() int

func (*SuObject) Lock 

func (x *SuObject) Lock() bool

func (*SuObject) Lookup 

func (*SuObject) Lookup(th *Thread, method string) Callable

func (*SuObject) NamedSize 

func (ob *SuObject) NamedSize() int

func (*SuObject) Pack 

func (ob *SuObject) Pack(hash *uint32, buf *pack.Encoder)

func (*SuObject) PackSize 

func (ob *SuObject) PackSize(hash *uint32) int

func (*SuObject) PackSize2 

func (ob *SuObject) PackSize2(hash *uint32, stack packStack) int

func (*SuObject) PopFirst 

func (ob *SuObject) PopFirst() Value

func (*SuObject) PopLast 

func (ob *SuObject) PopLast() Value

func (*SuObject) Put 

func (ob *SuObject) Put(_ *Thread, key, val Value)

Put adds or updates the given key and value The value will be added to the list if the key is the "next"

func (*SuObject) RLock 

func (x *SuObject) RLock() bool

func (*SuObject) RUnlock 

func (x *SuObject) RUnlock() bool

func (*SuObject) RangeLen 

func (ob *SuObject) RangeLen(from int, n int) Value

func (*SuObject) RangeTo 

func (ob *SuObject) RangeTo(from int, to int) Value

func (*SuObject) Reverse 

func (ob *SuObject) Reverse()

func (*SuObject) Set 

func (ob *SuObject) Set(key, val Value)

Set implements Put, doesn't require thread. The value will be added to the list if the key is the "next"

func (*SuObject) SetChildConc 

func (ob *SuObject) SetChildConc()

func (*SuObject) SetConcurrent 

func (ob *SuObject) SetConcurrent()

SetConcurrent when readonly does not need to set shouldLock. But it still needs to set its children to concurrent because they may be SuRecords that require locking when readonly or other objects that require copyCount initialization.

func (*SuObject) SetDefault 

func (ob *SuObject) SetDefault(def Value)

func (*SuObject) SetReadOnly 

func (ob *SuObject) SetReadOnly()

func (*SuObject) Show 

func (ob *SuObject) Show() string

Show is like Display except that it sorts named members. It is used for tests.

func (*SuObject) Size 

func (ob *SuObject) Size() int

Size returns the number of values in the object

func (*SuObject) Slice 

func (ob *SuObject) Slice(n int) Container

Slice returns a copy of the object, omitting the first n list values

func (*SuObject) Sort 

func (ob *SuObject) Sort(th *Thread, lt Value)

func (*SuObject) String 

func (ob *SuObject) String() string

func (*SuObject) ToContainer 

func (ob *SuObject) ToContainer() (Container, bool)

func (*SuObject) ToObject 

func (ob *SuObject) ToObject() *SuObject

func (*SuObject) ToRecord 

func (ob *SuObject) ToRecord(th *Thread, hdr *Header) Record

func (*SuObject) Type 

func (*SuObject) Type() types.Type

func (*SuObject) Unique 

func (ob *SuObject) Unique()

func (*SuObject) Unlock 

func (x *SuObject) Unlock() bool

type SuQuery 

type SuQuery struct {
	ValueBase[SuQuery]

	SuQueryCursor
	// contains filtered or unexported fields
}

func NewSuQuery 

func NewSuQuery(th *Thread, tran *SuTran, query string, iquery IQuery) *SuQuery

func (*SuQuery) Equal 

func (q *SuQuery) Equal(other any) bool

func (*SuQuery) GetRec 

func (q *SuQuery) GetRec(th *Thread, dir Dir) Value

func (*SuQuery) Lookup 

func (q *SuQuery) Lookup(_ *Thread, method string) Callable

func (*SuQuery) Output 

func (q *SuQuery) Output(th *Thread, ob Container)

func (*SuQuery) SetConcurrent 

func (*SuQuery) SetConcurrent()

func (*SuQuery) String 

func (q *SuQuery) String() string

func (*SuQuery) Type 

func (*SuQuery) Type() types.Type

type SuQueryCursor 

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

SuQueryCursor is the common base for SuQuery and SuCursor

func (*SuQueryCursor) Close 

func (qc *SuQueryCursor) Close()

func (*SuQueryCursor) Columns 

func (qc *SuQueryCursor) Columns() Value

func (*SuQueryCursor) Keys 

func (qc *SuQueryCursor) Keys() Value

func (*SuQueryCursor) Order 

func (qc *SuQueryCursor) Order() Value

func (*SuQueryCursor) Rewind 

func (qc *SuQueryCursor) Rewind()

func (*SuQueryCursor) RuleColumns 

func (qc *SuQueryCursor) RuleColumns() Value

func (*SuQueryCursor) Strategy 

func (qc *SuQueryCursor) Strategy(formatted bool) Value

type SuRecord 

type SuRecord struct {
	ValueBase[SuRecord]
	// contains filtered or unexported fields
}

SuRecord is an SuObject with observers and rules and a default value of "". Uses the lock from SuObject. Use NewSuRecord since zero value doesn't set default.

func NewSuRecord 

func NewSuRecord() *SuRecord

func SuRecordFromObject 

func SuRecordFromObject(ob *SuObject) *SuRecord

SuRecordFromObject creates a record from an arguments object WARNING: it does not copy the data, the original object should be discarded

func SuRecordFromRow 

func SuRecordFromRow(row Row, hdr *Header, table string, tran *SuTran) *SuRecord

func UnpackRecord 

func UnpackRecord(s string) *SuRecord

func (*SuRecord) Add 

func (r *SuRecord) Add(val Value)

func (*SuRecord) ArgsIter 

func (r *SuRecord) ArgsIter() func() (Value, Value)

func (*SuRecord) AttachRule 

func (r *SuRecord) AttachRule(key, callable Value)

func (*SuRecord) Clear 

func (r *SuRecord) Clear()

func (*SuRecord) Compare 

func (r *SuRecord) Compare(other Value) int

func (*SuRecord) Copy 

func (r *SuRecord) Copy() Container

func (*SuRecord) DbDelete 

func (r *SuRecord) DbDelete(th *Thread)

func (*SuRecord) DbUpdate 

func (r *SuRecord) DbUpdate(th *Thread, ob Value)

func (*SuRecord) Delete 

func (r *SuRecord) Delete(th *Thread, key Value) bool

func (*SuRecord) DeleteAll 

func (r *SuRecord) DeleteAll()

func (*SuRecord) Display 

func (r *SuRecord) Display(th *Thread) string

func (*SuRecord) Equal 

func (r *SuRecord) Equal(other any) bool

func (*SuRecord) Erase 

func (r *SuRecord) Erase(th *Thread, key Value) bool

func (*SuRecord) Get 

func (r *SuRecord) Get(th *Thread, key Value) Value

Get returns the value associated with a key, or defval if not found

func (*SuRecord) GetDeps 

func (r *SuRecord) GetDeps(key string) Value

func (*SuRecord) GetIfPresent 

func (r *SuRecord) GetIfPresent(th *Thread, keyval Value) Value

GetIfPresent is the same as Get except it returns nil instead of defval for missing members

func (*SuRecord) GetPut 

func (r *SuRecord) GetPut(th *Thread, m, v Value,
	op func(x, y Value) Value, retOrig bool) Value

func (*SuRecord) HasKey 

func (r *SuRecord) HasKey(key Value) bool

func (*SuRecord) Hash 

func (r *SuRecord) Hash() uint32

func (*SuRecord) Hash2 

func (r *SuRecord) Hash2() uint32

func (*SuRecord) Insert 

func (r *SuRecord) Insert(at int, val Value)

func (*SuRecord) Invalidate 

func (r *SuRecord) Invalidate(th *Thread, key string)

func (*SuRecord) IsConcurrent 

func (r *SuRecord) IsConcurrent() Value

func (*SuRecord) IsNew 

func (r *SuRecord) IsNew() bool

func (*SuRecord) IsReadOnly 

func (r *SuRecord) IsReadOnly() bool

func (*SuRecord) Iter 

func (r *SuRecord) Iter() Iter

func (*SuRecord) Iter2 

func (r *SuRecord) Iter2(list bool, named bool) func() (Value, Value)

func (*SuRecord) ListGet 

func (r *SuRecord) ListGet(i int) Value

func (*SuRecord) ListSize 

func (r *SuRecord) ListSize() int

func (*SuRecord) Lock 

func (r *SuRecord) Lock() bool

func (*SuRecord) Lookup 

func (*SuRecord) Lookup(th *Thread, method string) Callable

func (*SuRecord) NamedSize 

func (r *SuRecord) NamedSize() int

func (*SuRecord) Observer 

func (r *SuRecord) Observer(ofn Value)

func (*SuRecord) Pack 

func (r *SuRecord) Pack(hash *uint32, buf *pack.Encoder)

func (*SuRecord) PackSize 

func (r *SuRecord) PackSize(hash *uint32) int

func (*SuRecord) PackSize2 

func (r *SuRecord) PackSize2(hash *uint32, stack packStack) int

func (*SuRecord) PreSet 

func (r *SuRecord) PreSet(key, val Value)

func (*SuRecord) Put 

func (r *SuRecord) Put(th *Thread, keyval, val Value)

func (*SuRecord) RangeLen 

func (r *SuRecord) RangeLen(from int, n int) Value

func (*SuRecord) RangeTo 

func (r *SuRecord) RangeTo(from int, to int) Value

func (*SuRecord) RemoveObserver 

func (r *SuRecord) RemoveObserver(ofn Value) bool

func (*SuRecord) Set 

func (r *SuRecord) Set(key, val Value)

func (*SuRecord) SetConcurrent 

func (r *SuRecord) SetConcurrent()

SetConcurrent for SuRecord differs from SuObject. Unlike SuObject, SuRecord needs to lock when readonly because it modifies dependents and hdr's cache etc.

func (*SuRecord) SetDeps 

func (r *SuRecord) SetDeps(key, deps string)

func (*SuRecord) SetReadOnly 

func (r *SuRecord) SetReadOnly()

func (*SuRecord) Show 

func (r *SuRecord) Show() string

func (*SuRecord) Slice 

func (r *SuRecord) Slice(n int) Container

func (*SuRecord) String 

func (r *SuRecord) String() string

func (*SuRecord) ToContainer 

func (r *SuRecord) ToContainer() (Container, bool)

func (*SuRecord) ToObject 

func (r *SuRecord) ToObject() *SuObject

func (*SuRecord) ToRecord 

func (r *SuRecord) ToRecord(th *Thread, hdr *Header) Record

ToRecord converts this SuRecord to a Record to be stored in the database

func (*SuRecord) Transaction 

func (r *SuRecord) Transaction() *SuTran

func (*SuRecord) Type 

func (*SuRecord) Type() types.Type

func (*SuRecord) Unlock 

func (r *SuRecord) Unlock() bool

type SuRegex 

type SuRegex struct {
	ValueBase[SuRegex]
	Pat regex.Pattern
}

SuRegex is a compiled regular expression. It is not a general purpose Value and is internal, not exposed.

func (SuRegex) Equal 

func (rx SuRegex) Equal(other any) bool

func (SuRegex) Lookup 

func (SuRegex) Lookup(_ *Thread, method string) Callable

func (SuRegex) SetConcurrent 

func (SuRegex) SetConcurrent()

type SuSequence 

type SuSequence struct {
	ValueBase[SuSequence]

	MayLock
	// contains filtered or unexported fields
}

SuSequence wraps an Iter and instantiates it lazily the Iter is either built-in e.g. Seq or object.Members, or user defined via Sequence

func NewSuSequence 

func NewSuSequence(it Iter) *SuSequence

func (*SuSequence) Compare 

func (seq *SuSequence) Compare(other Value) int

func (*SuSequence) Copy 

func (seq *SuSequence) Copy() Value

func (*SuSequence) Equal 

func (seq *SuSequence) Equal(other any) bool

func (*SuSequence) Get 

func (seq *SuSequence) Get(th *Thread, key Value) Value

func (*SuSequence) GetPut 

func (seq *SuSequence) GetPut(th *Thread, key Value, val Value,
	op func(x, y Value) Value, retOrig bool) Value

func (*SuSequence) Hash 

func (seq *SuSequence) Hash() uint32

func (*SuSequence) Hash2 

func (seq *SuSequence) Hash2() uint32

func (*SuSequence) Infinite 

func (seq *SuSequence) Infinite() bool

func (*SuSequence) Instantiated 

func (seq *SuSequence) Instantiated() bool

func (*SuSequence) Iter 

func (seq *SuSequence) Iter() Iter

func (*SuSequence) Lookup 

func (seq *SuSequence) Lookup(th *Thread, method string) Callable

func (*SuSequence) Pack 

func (seq *SuSequence) Pack(hash *uint32, buf *pack.Encoder)

func (*SuSequence) PackSize 

func (seq *SuSequence) PackSize(hash *uint32) int

func (*SuSequence) PackSize2 

func (seq *SuSequence) PackSize2(hash *uint32, stack packStack) int

func (*SuSequence) Put 

func (seq *SuSequence) Put(th *Thread, key Value, val Value)

func (*SuSequence) RangeLen 

func (seq *SuSequence) RangeLen(i int, n int) Value

func (*SuSequence) RangeTo 

func (seq *SuSequence) RangeTo(i int, j int) Value

func (*SuSequence) SetConcurrent 

func (seq *SuSequence) SetConcurrent()

func (*SuSequence) String 

func (seq *SuSequence) String() string

func (*SuSequence) ToContainer 

func (seq *SuSequence) ToContainer() (Container, bool)

func (*SuSequence) Type 

func (*SuSequence) Type() types.Type

type SuStr 

type SuStr string

SuStr is a string Value

func (SuStr) AsStr 

func (ss SuStr) AsStr() (string, bool)

func (SuStr) Call 

func (ss SuStr) Call(th *Thread, _ Value, as *ArgSpec) Value

Call implements s(ob, ...) being treated as ob[s](...)

func (SuStr) Compare 

func (ss SuStr) Compare(other Value) int

func (SuStr) Display 

func (ss SuStr) Display(th *Thread) string

func (SuStr) Equal 

func (ss SuStr) Equal(other any) bool

func (SuStr) Get 

func (ss SuStr) Get(_ *Thread, key Value) Value

func (SuStr) GetPut 

func (SuStr) GetPut(*Thread, Value, Value, func(x, y Value) Value, bool) Value

func (SuStr) Hash 

func (ss SuStr) Hash() uint32

func (SuStr) Hash2 

func (ss SuStr) Hash2() uint32

func (SuStr) IfInt 

func (ss SuStr) IfInt() (int, bool)

func (SuStr) Iter 

func (ss SuStr) Iter() Iter

func (SuStr) Len 

func (ss SuStr) Len() int

func (SuStr) Lookup 

func (SuStr) Lookup(th *Thread, method string) Callable

func (SuStr) Pack 

func (ss SuStr) Pack(_ *uint32, buf *pack.Encoder)

func (SuStr) PackSize 

func (ss SuStr) PackSize(*uint32) int

func (SuStr) PackSize2 

func (ss SuStr) PackSize2(*uint32, packStack) int

func (SuStr) Put 

func (SuStr) Put(*Thread, Value, Value)

func (SuStr) RangeLen 

func (ss SuStr) RangeLen(from int, n int) Value

func (SuStr) RangeTo 

func (ss SuStr) RangeTo(from int, to int) Value

func (SuStr) SetConcurrent 

func (SuStr) SetConcurrent()

func (SuStr) String 

func (ss SuStr) String() string

String returns a human readable string with quotes and escaping

func (SuStr) ToContainer 

func (SuStr) ToContainer() (Container, bool)

func (SuStr) ToDnum 

func (ss SuStr) ToDnum() (dnum.Dnum, bool)

func (SuStr) ToInt 

func (ss SuStr) ToInt() (int, bool)

func (SuStr) ToStr 

func (ss SuStr) ToStr() (string, bool)

func (SuStr) Type 

func (SuStr) Type() types.Type

type SuTimestamp 

type SuTimestamp struct {
	SuDate
	// contains filtered or unexported fields
}

SuTimestamp is an extension of SuDate that adds an extra byte of precision for timestamps.

func UnpackTimestamp 

func UnpackTimestamp(sd SuDate, d *pack.Decoder) SuTimestamp

func (SuTimestamp) Compare 

func (d SuTimestamp) Compare(other Value) int

func (SuTimestamp) Equal 

func (d SuTimestamp) Equal(other any) bool

func (SuTimestamp) Hash 

func (d SuTimestamp) Hash() uint32

func (SuTimestamp) Pack 

func (d SuTimestamp) Pack(h *uint32, buf *pack.Encoder)

func (SuTimestamp) PackSize 

func (SuTimestamp) PackSize(*uint32) int

func (SuTimestamp) PackSize2 

func (SuTimestamp) PackSize2(*uint32, packStack) int

func (SuTimestamp) String 

func (d SuTimestamp) String() string

type SuTran 

type SuTran struct {
	ValueBase[*suTransaction]
	// contains filtered or unexported fields
}

SuTran is a database transaction

func NewSuTran 

func NewSuTran(itran ITran, updatable bool) *SuTran

func (*SuTran) Action 

func (st *SuTran) Action(th *Thread, action string) int

func (*SuTran) Asof 

func (st *SuTran) Asof(val Value) Value

func (*SuTran) Complete 

func (st *SuTran) Complete()

func (*SuTran) Data 

func (st *SuTran) Data() *SuObject

func (*SuTran) Delete 

func (st *SuTran) Delete(th *Thread, table string, off uint64)

func (*SuTran) Ended 

func (st *SuTran) Ended() bool

func (*SuTran) Equal 

func (st *SuTran) Equal(other any) bool

func (*SuTran) GetRow 

func (st *SuTran) GetRow(th *Thread, query string, dir Dir) (Row, *Header, string)

func (*SuTran) Lookup 

func (st *SuTran) Lookup(th *Thread, method string) Callable

func (*SuTran) Query 

func (st *SuTran) Query(th *Thread, query string) *SuQuery

func (*SuTran) ReadCount 

func (st *SuTran) ReadCount() int

func (*SuTran) Rollback 

func (st *SuTran) Rollback()

func (*SuTran) SetConcurrent 

func (st *SuTran) SetConcurrent()

func (*SuTran) String 

func (st *SuTran) String() string

func (*SuTran) Type 

func (*SuTran) Type() types.Type

func (*SuTran) Updatable 

func (st *SuTran) Updatable() bool

func (*SuTran) Update 

func (st *SuTran) Update(th *Thread, table string, off uint64, rec Record) uint64

func (*SuTran) WriteCount 

func (st *SuTran) WriteCount() int

type SuneidoObject 

type SuneidoObject struct {
	SuObject
}

SuneidoObject is the global Suneido object. It is a separate type to allow Suneido.Parse and Suneido.Compile methods. 

var Suneido *SuneidoObject

func (*SuneidoObject) Lock 

func (x *SuneidoObject) Lock() bool

func (*SuneidoObject) Lookup 

func (so *SuneidoObject) Lookup(th *Thread, method string) Callable

func (*SuneidoObject) RLock 

func (x *SuneidoObject) RLock() bool

func (*SuneidoObject) RUnlock 

func (x *SuneidoObject) RUnlock() bool

func (*SuneidoObject) Unlock 

func (x *SuneidoObject) Unlock() bool

type Sviews 

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

func (*Sviews) AddSview 

func (sv *Sviews) AddSview(name, def string)

func (*Sviews) DropSview 

func (sv *Sviews) DropSview(name string) bool

func (*Sviews) GetSview 

func (sv *Sviews) GetSview(name string) string

type Thread 

type Thread struct {
	// contains filtered or unexported fields
}
var MainThread *Thread

MainThread is injected by gsuneido.go to use for debugging

func NewThread 

func NewThread(parent *Thread) *Thread

NewThread creates a new thread. It is primarily used for user initiated threads. Internal threads can just use a zero Thread.

func (*Thread) Args 

func (th *Thread) Args(ps *ParamSpec, as *ArgSpec) []Value

func (*Thread) Call 

func (th *Thread) Call(fn Callable, args ...Value) Value

Call pushes the arguments onto the stack and calls the function

func (*Thread) CallEach 

func (th *Thread) CallEach(fn Callable, arg Value) Value

func (*Thread) CallEach1 

func (th *Thread) CallEach1(fn Callable, arg Value) Value

func (*Thread) CallLookup 

func (th *Thread) CallLookup(this Value, method string, args ...Value) Value

CallLookup calls a *named* method.

func (*Thread) CallLookupEach1 

func (th *Thread) CallLookupEach1(this Value, method string, arg Value) Value

func (*Thread) CallThis 

func (th *Thread) CallThis(fn Callable, this Value, args ...Value) Value

func (*Thread) Callstack 

func (th *Thread) Callstack() *SuObject

Callstack captures the call stack

func (*Thread) Cat 

func (th *Thread) Cat(x, y Value) Value

func (*Thread) Close 

func (th *Thread) Close()

Close closes the thread's dbms connection (if it has one)

func (*Thread) Dbms 

func (th *Thread) Dbms() IDbms

func (*Thread) GetState 

func (th *Thread) GetState() ThreadState

func (*Thread) Invalidate 

func (th *Thread) Invalidate()

Invalidate is used by workers to help detect use of thread after request

func (*Thread) Locals 

func (th *Thread) Locals(i int) *SuObject

func (*Thread) Lookup 

func (th *Thread) Lookup(this Value, method string) Callable

func (*Thread) Pop 

func (th *Thread) Pop() Value

Pop pops a value off the value stack

func (*Thread) PrintStack 

func (th *Thread) PrintStack()

PrintStack outputs the thread's call stack to stderr

func (*Thread) Push 

func (th *Thread) Push(x Value)

Push pushes a value onto the value stack

func (*Thread) PushCall 

func (th *Thread) PushCall(fn Callable, this Value, as *ArgSpec, args ...Value) Value

PushCall pushes the arguments onto the stack and calls the function

func (*Thread) Regex 

func (th *Thread) Regex(x Value) regex.Pattern

func (*Thread) Reset 

func (th *Thread) Reset()

Reset clears the thread except for Num, Name, session, and dbms. It is used by the repl and by dbms server workers.

func (*Thread) RestoreState 

func (th *Thread) RestoreState(st ThreadState)

func (*Thread) RunWithMainSuneido 

func (th *Thread) RunWithMainSuneido(fn func() Value) Value

func (*Thread) Session 

func (th *Thread) Session() string

func (*Thread) SessionId 

func (th *Thread) SessionId(id string) string

func (*Thread) SetDbms 

func (th *Thread) SetDbms(dbms IDbms)

SetDbms is used to set up the main thread initially

func (*Thread) SetSession 

func (th *Thread) SetSession(s string)

func (*Thread) SetSviews 

func (th *Thread) SetSviews(sv *Sviews)

func (*Thread) StartProfile 

func (th *Thread) StartProfile()

func (*Thread) StopProfile 

func (th *Thread) StopProfile() (total, self, ops, calls map[string]int32)

func (*Thread) SubThread 

func (th *Thread) SubThread() *Thread

SubThread is a NewThread with the same dbms as this thread. This is used for SuneidoAPP threads. We want a new thread for isolation e.g. for exceptions or dynamic variables but we don't need the overhead of another dbms connection. WARNING: This should only be used where it is guaranteed that the Threads will NOT be used concurrently.

func (*Thread) Sviews 

func (th *Thread) Sviews() *Sviews

func (*Thread) Swap 

func (th *Thread) Swap()

Swap exchanges the top two values on the stack

func (*Thread) Timestamp 

func (th *Thread) Timestamp() PackableValue

Timestamp is a Thread method for convenience, so it has access to the dbms. It is not "per thread". This is the "client" version of Timestamp.

func (*Thread) Top 

func (th *Thread) Top() Value

Top returns the top of the value stack (without modifying the stack)

func (*Thread) TrSet 

func (th *Thread) TrSet(x Value) tr.Set

func (*Thread) TraceCaller 

func (th *Thread) TraceCaller()

func (*Thread) TraceStack 

func (th *Thread) TraceStack()

TraceStack outputs the thread's call stack to trace

type ThreadState 

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

type ToStringable 

type ToStringable interface {
	ToString(*Thread) string
}

type Value 

type Value interface {
	// String returns a human readable string i.e. Suneido Display
	// Note: strings will have quotes and be escaped
	String() string

	// AsStr converts SuBool, SuInt, SuDnum, SuStr, SuConcat, SuExcept to string
	AsStr() (string, bool)

	// ToStr converts SuStr, SuConcat, SuExcept to string
	ToStr() (string, bool)

	// ToInt converts false (SuBool), "" (SuStr), SuInt, SuDnum to int
	ToInt() (int, bool)

	// IfInt converts SuInt, SuDnum to int
	IfInt() (int, bool)

	// ToDnum converts false (SuBool), "" (SuStr), SuInt, SuDnum to Dnum
	ToDnum() (dnum.Dnum, bool)

	// ToContainer converts object,record,sequence to a Container
	ToContainer() (Container, bool)

	// Get returns a member of an object/instance/class or a character of a string
	// returns nil if the member does not exist
	// The thread is necessary to call getters
	Get(th *Thread, key Value) Value

	// Put sets its key member to val.
	// Implemented by SuObject, SuRecord, and SuInstance.
	// t is required by SuRecord to call observers.
	Put(th *Thread, key Value, val Value)

	// GetPut is used for update operations like += and ++ atomically
	GetPut(th *Thread, key Value, val Value,
		op func(x, y Value) Value, retOrig bool) Value

	RangeTo(i int, j int) Value
	RangeLen(i int, n int) Value

	Equal(other any) bool

	Hash() uint32

	// Hash2 is used by object to shallow hash contents
	Hash2() uint32

	// Type returns the Suneido name for the type
	Type() types.Type

	// Compare returns -1 for less, 0 for equal, +1 for greater
	Compare(other Value) int

	Callable

	// Lookup returns a Callable or nil if the method isn't found
	Lookup(th *Thread, method string) Callable

	// SetConcurrent is called when a Value is
	// about to become reachable by multiple threads.
	// At the point where SetConcurrent is called it is still thread contained.
	// SetConcurrent should be called on any other Value's reachable from this.
	// Additional calls to SetConcurrent should be ignored.
	// NOTE: SetConcurrent cannot call abitrary code
	// because it is called when holding a lock.
	SetConcurrent()
}

Value is a value visible to Suneido programmers The naming convention is to use a prefix of "Su" - SuBoolean - SuInt, SuDnum - numbers - SuStr, SuConcat, SuExcept - strings - SuDate - SuObject, SuRecord, SuSequence - objects - SuBuiltin*, SuBuiltinMethod* - SuFunc - SuClosure - SuClass - SuInstance - SuMethod - not directly accessible, but returned for bound methods - SuIter - not directly accessible, but returned from e.g. object.Iter 

var (
	Zero     Value = SuInt(0)
	One      Value = SuInt(1)
	MinusOne Value = SuInt(-1)
	MaxInt   Value = SuDnum{Dnum: dnum.FromInt(math.MaxInt32)}
	Inf      Value = SuDnum{Dnum: dnum.PosInf}
	NegInf   Value = SuDnum{Dnum: dnum.NegInf}
	True     Value = SuBool(true)
	False    Value = SuBool(false)
)
var EmptyStr Value = SuStr("")
var NilVal Value

func GetBuiltinNames 

func GetBuiltinNames() []Value

func InfoStr 

func InfoStr(name string) Value

func IsConcurrent 

func IsConcurrent(x any) Value

func NumFromString 

func NumFromString(s string) Value

NumFromString converts a string to an SuInt or SuDnum. It will panic for invalid input.

func OpAdd 

func OpAdd(x Value, y Value) Value

func OpBitAnd 

func OpBitAnd(x Value, y Value) Value

func OpBitNot 

func OpBitNot(x Value) Value

func OpBitOr 

func OpBitOr(x Value, y Value) Value

func OpBitXor 

func OpBitXor(x Value, y Value) Value

func OpCat 

func OpCat(th *Thread, x, y Value) Value

func OpDiv 

func OpDiv(x Value, y Value) Value

func OpGt 

func OpGt(x Value, y Value) Value

func OpGte 

func OpGte(x Value, y Value) Value

func OpInRange 

func OpInRange(x Value, orgOp tok.Token, org Value, endOp tok.Token, end Value) Value

func OpIs 

func OpIs(x Value, y Value) Value

func OpIsnt 

func OpIsnt(x Value, y Value) Value

func OpLeftShift 

func OpLeftShift(x Value, y Value) Value

func OpLt 

func OpLt(x Value, y Value) Value

func OpLte 

func OpLte(x Value, y Value) Value

func OpMod 

func OpMod(x Value, y Value) Value

func OpMul 

func OpMul(x Value, y Value) Value

func OpNot 

func OpNot(x Value) Value

func OpRightShift 

func OpRightShift(x Value, y Value) Value

func OpSub 

func OpSub(x Value, y Value) Value

func OpUnaryMinus 

func OpUnaryMinus(x Value) Value

func OpUnaryPlus 

func OpUnaryPlus(x Value) Value

func Unpack 

func Unpack(s string) Value

Unpack returns the decoded value

func UnpackDate 

func UnpackDate(s string) Value

UnpackDate unpacks a date from the supplied byte slice

func UnpackNumber 

func UnpackNumber(s string) Value

type ValueBase 

type ValueBase[E any] struct{}

ValueBase is embedded in Value types to supply default methods. The parameter type is only used to get a type name for errors.

func (ValueBase[E]) AsStr 

func (ValueBase[E]) AsStr() (string, bool)

func (ValueBase[E]) Call 

func (ValueBase[E]) Call(*Thread, Value, *ArgSpec) Value

func (ValueBase[E]) Compare 

func (ValueBase[E]) Compare(Value) int

func (ValueBase[E]) Get 

func (ValueBase[E]) Get(*Thread, Value) Value

func (ValueBase[E]) GetPut 

func (ValueBase[E]) GetPut(*Thread, Value, Value, func(x, y Value) Value, bool) Value

func (ValueBase[E]) Hash 

func (ValueBase[E]) Hash() uint32

func (ValueBase[E]) Hash2 

func (ValueBase[E]) Hash2() uint32

func (ValueBase[E]) IfInt 

func (ValueBase[E]) IfInt() (int, bool)

func (ValueBase[E]) Lookup 

func (ValueBase[E]) Lookup(*Thread, string) Callable

func (ValueBase[E]) Put 

func (ValueBase[E]) Put(*Thread, Value, Value)

func (ValueBase[E]) RangeLen 

func (ValueBase[E]) RangeLen(int, int) Value

func (ValueBase[E]) RangeTo 

func (ValueBase[E]) RangeTo(int, int) Value

func (ValueBase[E]) SetConcurrent 

func (ValueBase[E]) SetConcurrent()

func (ValueBase[E]) String 

func (ValueBase[E]) String() string

func (ValueBase[E]) ToContainer 

func (ValueBase[E]) ToContainer() (Container, bool)

func (ValueBase[E]) ToDnum 

func (ValueBase[E]) ToDnum() (dnum.Dnum, bool)

func (ValueBase[E]) ToInt 

func (ValueBase[E]) ToInt() (int, bool)

func (ValueBase[E]) ToStr 

func (ValueBase[E]) ToStr() (string, bool)

func (ValueBase[E]) Type 

func (ValueBase[E]) Type() types.Type

func (ValueBase[E]) TypeName 

func (ValueBase[E]) TypeName() string

type ValueList 

type ValueList = list.List[Value]

Source Files

View all Source files

Directories

Path Synopsis
Package opcodes defines the bytecode instructions generated by compiler and executed by runtime
 Package opcodes defines the bytecode instructions generated by compiler and executed by runtime

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