vida

package module
v0.5.11 Latest Latest
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 Go to latest Published: Aug 29, 2026 License: Apache-2.0 Imports: 47 Imported by: 0

README

Vida Language

The official repo of the Vida programming language.

Welcome to Vida 🌿🌻! Version 0.5.11

Vida is a simple, general-purpose and extensible scripting language.

Vida is is still a WIP.

The next milestone is stabilize it and take it to the version 1.0.0

Documentation

Index

Constants

View Source 
const (
	VidaFileExtension = ".vida"

	DefaultInputPrompt = "Input > "

	EmptyString            = ""
	DefaultValField        = "value"
	DefaultCloseMethodName = "close"
)
View Source 
const (
	VIDAPATH        = "VIDAPATH"
	ProjectCellsDir = "cells"
	VidaPathDirName = "vida-cells"
)
View Source 
const (
	FileErrType      = "File"
	LexicalErrType   = "Lexical"
	SyntaxErrType    = "Syntax"
	BuildErrType     = "Build"
	RunTimeErrType   = "Runtime"
	AssertionErrType = "Assertion Failure"
	ExceptionErrType = "Exception"
	MaxMemSize       = 0x7FFF_FFFF
)
View Source 
const (
	ErrStringLimit                      = internalBasicError("max size for strings has been reached")
	ErrOpNotDefinedForIterators         = internalBasicError("operation not defined for iterators")
	ErrValueNotIndexable                = internalBasicError("value not indexable")
	ErrPrefixOpNotDefined               = internalBasicError("prefix operation not defined")
	ErrBinaryOpNotDefined               = internalBasicError("binary operation not defined")
	ErrDivisionByZero                   = internalBasicError("division by zero")
	ErrExpectedInteger                  = internalBasicError("expected a value of type integer")
	ErrExpectedIntegerDifferentFromZero = internalBasicError("expected an integer value different from zero")
	ErrValueNotIterable                 = internalBasicError("value is not iterable")
	ErrValueNotCallable                 = internalBasicError("value is not callable")
	ErrStackOverflow                    = internalBasicError("stack overflow")
	ErrArity                            = internalBasicError("number of arguments different from function arity")
	ErrNotEnoughArgs                    = internalBasicError("not enough arguments passed to the function")
	ErrVariadicArgs                     = internalBasicError("expected an array for variadic arguments or the given array overflows the stack")
	ErrSlice                            = internalBasicError("could not process the slice")
	ErrView                             = internalBasicError("could not process the view")
	ErrValueIsConstant                  = internalBasicError("value is constant")
	ErrMaxMemSize                       = internalBasicError("max memory size reached")
	ErrNotImplemented                   = internalBasicError("not implemented functionality for this value")
	ErrNotThread                        = internalBasicError("value is not a thread")
	ErrResumingNotSuspendedThread       = internalBasicError("cannot run a completed, running or waiting thread")
	ErrNotAFunction                     = internalBasicError("threads must be build from functions")
	ErrSuspendingMainThread             = internalBasicError("cannot suspend the main thread")
	ErrSuspendingRunningThread          = internalBasicError("cannot suspend a running thread")
	ErrClosingAThread                   = internalBasicError("cannot complete a running, waiting or completed thread")
	ErrStartThreadSignal                = internalBasicError("start-thread-signal")
	ErrResumeThreadSignal               = internalBasicError("resume-thread-signal")
	ErrSuspendThreadSignal              = internalBasicError("suspend-thread-signal")
	ErrRecyclingThread                  = internalBasicError("cannot recycle an active thread")
	ErrSoringMixedTypes                 = internalBasicError("cannot sort mixed data types")
	ErrParallelArgs                     = internalBasicError("arguments for parallel tasks must be non empty arrays")
	ErrParallelFn                       = internalBasicError("first argument of a parallel argument must be a function")
	ErrNonNegativeIntegerTimeout        = internalBasicError("timeout must be a non negative integer milliseconds")
	ErrNonEmptyTaskArray                = internalBasicError("parallel tasks must be inside a non empty array")
	ErrInvalidJSON                      = internalBasicError("invalid json")
	ErrExpectedString                   = internalBasicError("expected argument of type string")
	ErrExpectedIntegerArg               = internalBasicError("expected argument of type integer")
	ErrExpectedBool                     = internalBasicError("expected argument of type bool")
	ErrInvalidNumberOfArguments         = internalBasicError("invalid number of arguments")
	ErrInvalidTypeOfArgument            = internalBasicError("invalid type of argument")
)
View Source 
const False = Bool(false)
View Source 
const True = Bool(true)

Variables

View Source 
var Nil = NilValue{}

Functions

func About 

func About() string

func DownloadCellTo 

func DownloadCellTo(rawURL, destPath string) error

DownloadCellTo fetches rawURL and writes it verbatim to destPath, creating any needed directories. It does not check for an existing cached file — callers decide caching policy.

func ErrOperatorOverrideNotCallable 

func ErrOperatorOverrideNotCallable(operator string) error

ErrOperatorOverrideNotCallable reports that a vtable entry was found under a binary operator's message name (e.g. "add", "lt" — see tokenBinopToString) but the value stored there is not a function — so it cannot actually be used as an operator override. This is kept distinct from ErrBinaryOpNotDefined on purpose: "no override exists" and "an override exists but is broken" are different problems for a developer to diagnose, and collapsing them into the same generic message hides a very findable mistake (usually a plain value assigned to a vtable slot where a function was meant to go).

Note: this does not apply to equality ("eq"). Object.Equals has its own separate, inline override-lookup logic and can't surface this error at all, since the Value.Equals contract returns only a Bool, with no error channel — a non-callable "eq" override is currently treated the same as no override at all (falls back to pointer identity) rather than erroring.

func LoadScriptFromFile 

func LoadScriptFromFile(path string) ([]byte, error)

func Name 

func Name() string

func PrintBytecode 

func PrintBytecode(script *Script, name string) string

func VFprint 

func VFprint(w io.Writer, a ...Value) (n int, err error)

func VFprintf 

func VFprintf(w io.Writer, format string, a ...Value) (n int, err error)

VFprintf is like fmt.Fprintf but using Values.

func VFprintln 

func VFprintln(w io.Writer, a ...Value) (n int, err error)

Custom Basic ftm family of functions

func VSprintf 

func VSprintf(format string, a ...Value) (string, error)

VSprintf is like fmt.Sprintf but using Values.

func Version 

func Version() string

Types

type Array 

type Array struct {
	ReferenceSemanticsImpl
	Value []Value
}

func (*Array) Binop 

func (xs *Array) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (*Array) Boolean 

func (xs *Array) Boolean() Bool

func (*Array) Clone 

func (xs *Array) Clone() Value

func (*Array) Equals 

func (xs *Array) Equals(ctx *Context, other Value) Bool

func (*Array) Get 

func (xs *Array) Get(ctx *Context, index Value) Value

func (*Array) GetVTable 

func (xs *Array) GetVTable(ctx *Context) Value

func (*Array) IsCallable 

func (xs *Array) IsCallable() Bool

func (*Array) IsIterable 

func (xs *Array) IsIterable() Bool

func (*Array) Iterator 

func (xs *Array) Iterator(ctx *Context) Value

func (*Array) LookUp 

func (xs *Array) LookUp(ctx *Context, message Value) Value

func (*Array) MarshalJSON 

func (xs *Array) MarshalJSON() ([]byte, error)

func (*Array) ObjectKey 

func (xs *Array) ObjectKey() string

func (*Array) Prefix 

func (xs *Array) Prefix(ctx *Context, op uint64) (Value, error)

func (*Array) Set 

func (xs *Array) Set(index, val Value) error

func (*Array) String 

func (xs *Array) String() string

func (*Array) Type 

func (xs *Array) Type() string

type ArrayIterator 

type ArrayIterator struct {
	ReferenceSemanticsImpl
	Array []Value
	Init  int
	End   int
}

func (*ArrayIterator) Clone 

func (it *ArrayIterator) Clone() Value

func (*ArrayIterator) IsIterable added in v0.5.11 

func (it *ArrayIterator) IsIterable() Bool

func (*ArrayIterator) Iterator added in v0.5.11 

func (it *ArrayIterator) Iterator(ctx *Context) Value

func (*ArrayIterator) Key 

func (it *ArrayIterator) Key(ctx *Context) Value

func (*ArrayIterator) Next 

func (it *ArrayIterator) Next() bool

func (*ArrayIterator) ObjectKey added in v0.5.11 

func (it *ArrayIterator) ObjectKey() string

func (*ArrayIterator) String 

func (it *ArrayIterator) String() string

func (*ArrayIterator) Type 

func (it *ArrayIterator) Type() string

func (*ArrayIterator) Value 

func (it *ArrayIterator) Value(ctx *Context) Value

type Bool 

type Bool bool

func (Bool) Binop 

func (b Bool) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (Bool) Boolean 

func (b Bool) Boolean() Bool

func (Bool) Call 

func (b Bool) Call(ctx *Context, args ...Value) (Value, error)

func (Bool) Clone 

func (b Bool) Clone() Value

func (Bool) Equals 

func (b Bool) Equals(ctx *Context, other Value) Bool

func (Bool) Get 

func (b Bool) Get(ctx *Context, index Value) Value

func (Bool) GetVTable 

func (b Bool) GetVTable(ctx *Context) Value

func (Bool) IsCallable 

func (b Bool) IsCallable() Bool

func (Bool) IsIterable 

func (b Bool) IsIterable() Bool

func (Bool) Iterator 

func (b Bool) Iterator(ctx *Context) Value

func (Bool) LookUp 

func (b Bool) LookUp(ctx *Context, message Value) Value

func (Bool) ObjectKey 

func (b Bool) ObjectKey() string

func (Bool) Prefix 

func (b Bool) Prefix(ctx *Context, op uint64) (Value, error)

func (Bool) Set 

func (b Bool) Set(index, val Value) error

func (Bool) String 

func (b Bool) String() string

func (Bool) Type 

func (b Bool) Type() string

type Bundle added in v0.5.11 

type Bundle struct {
	// Source is the generated, single-file .vida program. It has no
	// remaining local import(...) calls: every local dependency has been
	// inlined. Remote imports (disallowed directly in code, same as in
	// ordinary compilation) still surface as an error during bundling.
	Source []byte
	// Entry is the resolved, absolute path of the script that was bundled.
	Entry string
	// Files lists every file folded into Source, starting with Entry,
	// followed by its dependencies in the order they were first
	// encountered (depth-first).
	Files []string
}

Bundle is the result of flattening a script's import graph into a single self-contained source file.

func BundleSource added in v0.5.11 

func BundleSource(entryPath string) (*Bundle, error)

BundleSource walks entryPath's import graph -- exactly the same resolution rules the compiler itself uses (relative to each importing file, then that file's 'cells' directory, then VIDAPATH) -- and produces a single .vida file with every local dependency inlined.

Each dependency is wrapped as `let __vida_bundle_N = fun { ... }` and every import("...") call site that used to load it becomes a call to that function, preserving the original re-execute-on-every-import semantics. A dependency's own top-level `let` declarations are rewritten to `var` so that dependencies don't collide in a shared global namespace once they're all compiled as one program (they're independent modules in the original multi-file compilation; wrapping keeps them independent). A dependency's trailing `export <expr>` becomes `ret <expr>`, matching how import() already treats it. The entry file itself is left otherwise untouched -- its own top-level `let`s and any `export` (a no-op at the true top level, exactly as it is today) keep their original meaning.

type Bytes 

type Bytes struct {
	ReferenceSemanticsImpl
	Value []byte
}

func (*Bytes) Binop 

func (b *Bytes) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (*Bytes) Boolean 

func (b *Bytes) Boolean() Bool

func (*Bytes) Clone 

func (b *Bytes) Clone() Value

func (*Bytes) Equals 

func (b *Bytes) Equals(ctx *Context, other Value) Bool

func (*Bytes) Get 

func (b *Bytes) Get(ctx *Context, index Value) Value

func (*Bytes) GetVTable 

func (b *Bytes) GetVTable(ctx *Context) Value

func (*Bytes) IsCallable 

func (b *Bytes) IsCallable() Bool

func (*Bytes) IsIterable 

func (b *Bytes) IsIterable() Bool

func (*Bytes) Iterator 

func (b *Bytes) Iterator(ctx *Context) Value

func (*Bytes) LookUp 

func (b *Bytes) LookUp(ctx *Context, message Value) Value

func (*Bytes) ObjectKey 

func (b *Bytes) ObjectKey() string

func (*Bytes) Prefix 

func (b *Bytes) Prefix(ctx *Context, op uint64) (Value, error)

func (*Bytes) Set 

func (b *Bytes) Set(index, val Value) error

func (Bytes) String 

func (b Bytes) String() string

func (*Bytes) Type 

func (b *Bytes) Type() string

type BytesIterator 

type BytesIterator struct {
	ReferenceSemanticsImpl
	Bytes []byte
	Init  int
	End   int
}

func (*BytesIterator) Clone 

func (bi *BytesIterator) Clone() Value

func (*BytesIterator) IsIterable added in v0.5.11 

func (bi *BytesIterator) IsIterable() Bool

func (*BytesIterator) Iterator added in v0.5.11 

func (bi *BytesIterator) Iterator(ctx *Context) Value

func (*BytesIterator) Key 

func (bi *BytesIterator) Key(ctx *Context) Value

func (*BytesIterator) Next 

func (bi *BytesIterator) Next() bool

func (*BytesIterator) ObjectKey added in v0.5.11 

func (it *BytesIterator) ObjectKey() string

func (*BytesIterator) String 

func (bi *BytesIterator) String() string

func (*BytesIterator) Type 

func (bi *BytesIterator) Type() string

func (*BytesIterator) Value 

func (bi *BytesIterator) Value(ctx *Context) Value

type Context 

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

func NewContext 

func NewContext(src []byte, contextID string, extensionsLoader ExtensionsLoader) *Context

func (*Context) Compile 

func (ctx *Context) Compile() (err error)

func (*Context) CompileAndRun 

func (ctx *Context) CompileAndRun() (err error)

func (*Context) IsMainThreadRunning 

func (ctx *Context) IsMainThreadRunning() bool

func (*Context) MeasureRunTime 

func (ctx *Context) MeasureRunTime() (end time.Duration, err error)

func (*Context) PrintAST 

func (ctx *Context) PrintAST(withColors bool) error

func (*Context) PrintCallStack 

func (ctx *Context) PrintCallStack() error

func (*Context) PrintMachineCode 

func (ctx *Context) PrintMachineCode() error

func (*Context) PrintTokens 

func (ctx *Context) PrintTokens() error

func (*Context) Run 

func (ctx *Context) Run() error

func (*Context) RunDebugSession 

func (ctx *Context) RunDebugSession() (err error)

func (*Context) SetContextID 

func (ctx *Context) SetContextID(contextId string)

func (*Context) SetExtensionsLoader 

func (ctx *Context) SetExtensionsLoader(extensionsLoader ExtensionsLoader)

func (*Context) SetSource 

func (ctx *Context) SetSource(src []byte)

type CoreFunction 

type CoreFunction struct {
	ReferenceSemanticsImpl
	Code            []uint64
	FreeVarsInfo    []freeVarsInfo
	ScriptID        string
	MapScriptIPLine MapScriptIPLine
	FreeVarsCount   int
	Arity           int
	IsVarArg        bool
}

func (*CoreFunction) Boolean 

func (c *CoreFunction) Boolean() Bool

func (*CoreFunction) Clone 

func (f *CoreFunction) Clone() Value

func (*CoreFunction) Equals 

func (c *CoreFunction) Equals(ctx *Context, other Value) Bool

func (CoreFunction) String 

func (f CoreFunction) String() string

func (*CoreFunction) Type 

func (c *CoreFunction) Type() string

type Enum 

type Enum struct {
	Pairs map[string]Integer
}

func (*Enum) Binop 

func (e *Enum) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (*Enum) Boolean 

func (e *Enum) Boolean() Bool

func (*Enum) Call 

func (e *Enum) Call(ctx *Context, args ...Value) (Value, error)

func (*Enum) Clone 

func (e *Enum) Clone() Value

func (*Enum) Equals 

func (e *Enum) Equals(ctx *Context, other Value) Bool

func (*Enum) Get 

func (e *Enum) Get(ctx *Context, index Value) Value

func (*Enum) GetVTable 

func (e *Enum) GetVTable(ctx *Context) Value

func (*Enum) IsCallable 

func (e *Enum) IsCallable() Bool

func (*Enum) IsIterable 

func (e *Enum) IsIterable() Bool

func (*Enum) Iterator 

func (e *Enum) Iterator(ctx *Context) Value

func (*Enum) LookUp 

func (e *Enum) LookUp(ctx *Context, message Value) Value

func (*Enum) MarshalJSON 

func (e *Enum) MarshalJSON() ([]byte, error)

func (*Enum) ObjectKey 

func (e *Enum) ObjectKey() string

func (*Enum) Prefix 

func (e *Enum) Prefix(ctx *Context, op uint64) (Value, error)

func (*Enum) Set 

func (e *Enum) Set(Value, Value) error

func (Enum) String 

func (e Enum) String() string

func (*Enum) Type 

func (e *Enum) Type() string

type ExtensionsLoader 

type ExtensionsLoader map[string]func() Value

type File added in v0.5.11 

type File struct {
	ReferenceSemanticsImpl
	Handler  *os.File
	Reader   *bufio.Reader
	Writer   *bufio.Writer
	Path     string
	Flags    int
	IsClosed bool
}

File Handler API

func (*File) Binop added in v0.5.11 

func (file *File) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (*File) Boolean added in v0.5.11 

func (file *File) Boolean() Bool

func (*File) Clone added in v0.5.11 

func (file *File) Clone() Value

func (*File) Equals added in v0.5.11 

func (file *File) Equals(ctx *Context, other Value) Bool

func (*File) GetMethod added in v0.5.11 

func (vf *File) GetMethod(name string) (Value, bool)

func (*File) GetVTable added in v0.5.11 

func (file *File) GetVTable(ctx *Context) Value

func (*File) LookUp added in v0.5.11 

func (file *File) LookUp(ctx *Context, message Value) Value

func (*File) ObjectKey added in v0.5.11 

func (file *File) ObjectKey() string

func (*File) Prefix added in v0.5.11 

func (file *File) Prefix(ctx *Context, op uint64) (Value, error)

func (*File) String added in v0.5.11 

func (file *File) String() string

func (*File) Type added in v0.5.11 

func (file *File) Type() string

type Float 

type Float float64

func (Float) Binop 

func (f Float) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (Float) Boolean 

func (f Float) Boolean() Bool

func (Float) Call 

func (f Float) Call(ctx *Context, args ...Value) (Value, error)

func (Float) Clone 

func (f Float) Clone() Value

func (Float) Equals 

func (f Float) Equals(ctx *Context, other Value) Bool

func (Float) Get 

func (f Float) Get(ctx *Context, index Value) Value

func (Float) GetVTable 

func (f Float) GetVTable(ctx *Context) Value

func (Float) IsCallable 

func (f Float) IsCallable() Bool

func (Float) IsIterable 

func (f Float) IsIterable() Bool

func (Float) Iterator 

func (f Float) Iterator(ctx *Context) Value

func (Float) LookUp 

func (f Float) LookUp(ctx *Context, message Value) Value

func (Float) ObjectKey 

func (f Float) ObjectKey() string

func (Float) Prefix 

func (f Float) Prefix(ctx *Context, op uint64) (Value, error)

func (Float) Set 

func (f Float) Set(index, val Value) error

func (Float) String 

func (f Float) String() string

func (Float) Type 

func (f Float) Type() string

type Function 

type Function struct {
	ReferenceSemanticsImpl
	FreeVarStore []Value
	CoreFn       *CoreFunction
}

func (*Function) Binop 

func (f *Function) Binop(ctx *Context, op uint64, r Value) (Value, error)

func (*Function) Boolean 

func (f *Function) Boolean() Bool

func (*Function) Clone 

func (f *Function) Clone() Value

func (*Function) Equals 

func (f *Function) Equals(ctx *Context, other Value) Bool

func (*Function) GetVTable 

func (f *Function) GetVTable(ctx *Context) Value

func (*Function) IsCallable 

func (f *Function) IsCallable() Bool

func (*Function) LookUp 

func (f *Function) LookUp(ctx *Context, message Value) Value

func (*Function) ObjectKey 

func (f *Function) ObjectKey() string

func (*Function) Prefix 

func (f *Function) Prefix(ctx *Context, op uint64) (Value, error)

func (Function) String 

func (f Function) String() string

func (*Function) Type 

func (f *Function) Type() string

type Integer 

type Integer int64

func StringLength 

func StringLength(input *String) Integer

func (Integer) Binop 

func (l Integer) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (Integer) Boolean 

func (i Integer) Boolean() Bool

func (Integer) Call 

func (i Integer) Call(ctx *Context, args ...Value) (Value, error)

func (Integer) Clone 

func (i Integer) Clone() Value

func (Integer) Equals 

func (i Integer) Equals(ctx *Context, other Value) Bool

func (Integer) Get 

func (i Integer) Get(ctx *Context, index Value) Value

func (Integer) GetVTable 

func (i Integer) GetVTable(ctx *Context) Value

func (Integer) IsCallable 

func (i Integer) IsCallable() Bool

func (Integer) IsIterable 

func (i Integer) IsIterable() Bool

func (Integer) Iterator 

func (i Integer) Iterator(ctx *Context) Value

func (Integer) LookUp 

func (i Integer) LookUp(ctx *Context, message Value) Value

func (Integer) ObjectKey 

func (i Integer) ObjectKey() string

func (Integer) Prefix 

func (i Integer) Prefix(ctx *Context, op uint64) (Value, error)

func (Integer) Set 

func (i Integer) Set(index, val Value) error

func (Integer) String 

func (i Integer) String() string

func (Integer) Type 

func (i Integer) Type() string

type IntegerIterator 

type IntegerIterator struct {
	ReferenceSemanticsImpl
	Init Integer
	End  Integer
}

func (*IntegerIterator) Clone 

func (it *IntegerIterator) Clone() Value

func (*IntegerIterator) IsIterable added in v0.5.11 

func (it *IntegerIterator) IsIterable() Bool

func (*IntegerIterator) Iterator added in v0.5.11 

func (it *IntegerIterator) Iterator(ctx *Context) Value

func (*IntegerIterator) Key 

func (it *IntegerIterator) Key(ctx *Context) Value

func (*IntegerIterator) Next 

func (it *IntegerIterator) Next() bool

func (*IntegerIterator) ObjectKey added in v0.5.11 

func (it *IntegerIterator) ObjectKey() string

func (*IntegerIterator) String 

func (it *IntegerIterator) String() string

func (*IntegerIterator) Type 

func (it *IntegerIterator) Type() string

func (*IntegerIterator) Value 

func (it *IntegerIterator) Value(ctx *Context) Value

type Iterator 

type Iterator interface {
	Next() bool
	Key(*Context) Value
	Value(*Context) Value
}

type Lexer 

type Lexer struct {
	ScriptID     string
	LexicalError *VidaRunTimeError
	// contains filtered or unexported fields
}

func (*Lexer) Next 

func (l *Lexer) Next() (line uint, tok token.Token, lit string)

type MapScriptIPLine 

type MapScriptIPLine map[string]map[int]uint

type NativeFunction 

type NativeFunction func(ctx *Context, args ...Value) (Value, error)

func (NativeFunction) Binop 

func (nativeFn NativeFunction) Binop(ctx *Context, op uint64, r Value) (Value, error)

func (NativeFunction) Boolean 

func (nativeFn NativeFunction) Boolean() Bool

func (NativeFunction) Call 

func (nativeFn NativeFunction) Call(ctx *Context, args ...Value) (Value, error)

func (NativeFunction) Clone 

func (nativeFn NativeFunction) Clone() Value

func (NativeFunction) Equals 

func (nativeFn NativeFunction) Equals(ctx *Context, other Value) Bool

func (NativeFunction) Get 

func (nativeFn NativeFunction) Get(ctx *Context, index Value) Value

func (NativeFunction) GetVTable 

func (nativeFn NativeFunction) GetVTable(ctx *Context) Value

func (NativeFunction) IsCallable 

func (nativeFn NativeFunction) IsCallable() Bool

func (NativeFunction) IsIterable 

func (nativeFn NativeFunction) IsIterable() Bool

func (NativeFunction) Iterator 

func (nativeFn NativeFunction) Iterator(ctx *Context) Value

func (NativeFunction) LookUp 

func (nativeFn NativeFunction) LookUp(ctx *Context, message Value) Value

func (NativeFunction) MarshalJSON 

func (nativeFn NativeFunction) MarshalJSON() ([]byte, error)

func (NativeFunction) ObjectKey 

func (nativeFn NativeFunction) ObjectKey() string

func (NativeFunction) Prefix 

func (nativeFn NativeFunction) Prefix(ctx *Context, op uint64) (Value, error)

func (NativeFunction) Set 

func (nativeFn NativeFunction) Set(index, val Value) error

func (NativeFunction) String 

func (nativeFn NativeFunction) String() string

func (NativeFunction) Type 

func (nativeFn NativeFunction) Type() string

type NilValue 

type NilValue struct {
	ValueSemanticsImpl
}

func (NilValue) Binop 

func (n NilValue) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (NilValue) Boolean 

func (n NilValue) Boolean() Bool

func (NilValue) Clone 

func (n NilValue) Clone() Value

func (NilValue) Equals 

func (n NilValue) Equals(ctx *Context, other Value) Bool

func (NilValue) LookUp 

func (n NilValue) LookUp(ctx *Context, message Value) Value

func (NilValue) ObjectKey 

func (n NilValue) ObjectKey() string

func (NilValue) Prefix 

func (n NilValue) Prefix(ctx *Context, op uint64) (Value, error)

func (NilValue) String 

func (n NilValue) String() string

func (NilValue) Type 

func (n NilValue) Type() string

type Object 

type Object struct {
	ReferenceSemanticsImpl
	Value  map[string]Value
	VTable *Object
}

func (*Object) Binop 

func (o *Object) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (*Object) Boolean 

func (o *Object) Boolean() Bool

func (*Object) Call 

func (o *Object) Call(ctx *Context, args ...Value) (Value, error)

func (*Object) Clone 

func (o *Object) Clone() Value

func (*Object) Equals 

func (o *Object) Equals(ctx *Context, other Value) Bool

func (*Object) Get 

func (o *Object) Get(ctx *Context, message Value) Value

func (*Object) GetVTable 

func (o *Object) GetVTable(ctx *Context) Value

func (*Object) IsCallable 

func (o *Object) IsCallable() Bool

func (*Object) IsIterable 

func (o *Object) IsIterable() Bool

func (*Object) Iterator 

func (o *Object) Iterator(ctx *Context) Value

func (*Object) LookUp 

func (o *Object) LookUp(ctx *Context, message Value) Value

func (*Object) MarshalJSON 

func (o *Object) MarshalJSON() ([]byte, error)

func (*Object) ObjectKey 

func (o *Object) ObjectKey() string

func (*Object) Prefix 

func (o *Object) Prefix(ctx *Context, op uint64) (Value, error)

func (*Object) Set 

func (o *Object) Set(index, val Value) error

func (*Object) String 

func (o *Object) String() string

func (*Object) Type 

func (o *Object) Type() string

type ObjectIterator 

type ObjectIterator struct {
	ReferenceSemanticsImpl
	Keys []string
	Obj  map[string]Value
	Init int
	End  int
}

func (*ObjectIterator) Clone 

func (it *ObjectIterator) Clone() Value

func (*ObjectIterator) IsIterable added in v0.5.11 

func (it *ObjectIterator) IsIterable() Bool

func (*ObjectIterator) Iterator added in v0.5.11 

func (it *ObjectIterator) Iterator(ctx *Context) Value

func (*ObjectIterator) Key 

func (it *ObjectIterator) Key(ctx *Context) Value

func (*ObjectIterator) Next 

func (it *ObjectIterator) Next() bool

func (*ObjectIterator) ObjectKey added in v0.5.11 

func (it *ObjectIterator) ObjectKey() string

func (*ObjectIterator) String 

func (it *ObjectIterator) String() string

func (*ObjectIterator) Type 

func (it *ObjectIterator) Type() string

func (*ObjectIterator) Value 

func (it *ObjectIterator) Value(ctx *Context) Value

type RGB 

type RGB struct {
	R, G, B uint8
}

func (RGB) Hex 

func (c RGB) Hex() string

type ReferenceSemanticsImpl 

type ReferenceSemanticsImpl struct{}

Reference semantics default impl

func (*ReferenceSemanticsImpl) Binop 

func (i *ReferenceSemanticsImpl) Binop(*Context, uint64, Value) (Value, error)

func (*ReferenceSemanticsImpl) Boolean 

func (i *ReferenceSemanticsImpl) Boolean() Bool

func (*ReferenceSemanticsImpl) Call 

func (i *ReferenceSemanticsImpl) Call(ctx *Context, args ...Value) (Value, error)

func (*ReferenceSemanticsImpl) Clone 

func (i *ReferenceSemanticsImpl) Clone() Value

func (*ReferenceSemanticsImpl) Equals 

func (i *ReferenceSemanticsImpl) Equals(*Context, Value) Bool

func (*ReferenceSemanticsImpl) Get 

func (i *ReferenceSemanticsImpl) Get(*Context, Value) Value

func (*ReferenceSemanticsImpl) GetVTable 

func (i *ReferenceSemanticsImpl) GetVTable(ctx *Context) Value

func (*ReferenceSemanticsImpl) IsCallable 

func (i *ReferenceSemanticsImpl) IsCallable() Bool

func (*ReferenceSemanticsImpl) IsIterable 

func (i *ReferenceSemanticsImpl) IsIterable() Bool

func (*ReferenceSemanticsImpl) Iterator 

func (i *ReferenceSemanticsImpl) Iterator(*Context) Value

func (*ReferenceSemanticsImpl) LookUp 

func (i *ReferenceSemanticsImpl) LookUp(*Context, Value) Value

func (*ReferenceSemanticsImpl) MarshalJSON 

func (i *ReferenceSemanticsImpl) MarshalJSON() ([]byte, error)

func (*ReferenceSemanticsImpl) ObjectKey 

func (i *ReferenceSemanticsImpl) ObjectKey() string

func (*ReferenceSemanticsImpl) Prefix 

func (i *ReferenceSemanticsImpl) Prefix(*Context, uint64) (Value, error)

func (*ReferenceSemanticsImpl) Set 

func (i *ReferenceSemanticsImpl) Set(Value, Value) error

func (ReferenceSemanticsImpl) String 

func (i ReferenceSemanticsImpl) String() string

func (*ReferenceSemanticsImpl) Type 

func (i *ReferenceSemanticsImpl) Type() string

type Script 

type Script struct {
	GlobalStore  *[]Value
	Konstants    *[]Value
	MainFunction *Function
}

func (Script) String 

func (s Script) String() string

type StackFrameInfo 

type StackFrameInfo struct {
	ScriptID string
	Line     uint
	Frame    uint
}

func (StackFrameInfo) Error 

func (sfi StackFrameInfo) Error() string

type String 

type String struct {
	ReferenceSemanticsImpl
	Runes []rune
	Value string
}

func (*String) Binop 

func (s *String) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (*String) Boolean 

func (s *String) Boolean() Bool

func (*String) Clone 

func (s *String) Clone() Value

func (*String) Equals 

func (s *String) Equals(ctx *Context, other Value) Bool

func (*String) Get 

func (s *String) Get(ctx *Context, index Value) Value

func (*String) GetVTable 

func (s *String) GetVTable(ctx *Context) Value

func (*String) IsCallable 

func (s *String) IsCallable() Bool

func (*String) IsIterable 

func (s *String) IsIterable() Bool

func (*String) Iterator 

func (s *String) Iterator(ctx *Context) Value

func (*String) LookUp 

func (s *String) LookUp(ctx *Context, message Value) Value

func (*String) MarshalJSON 

func (s *String) MarshalJSON() ([]byte, error)

func (*String) ObjectKey 

func (s *String) ObjectKey() string

func (*String) Prefix 

func (s *String) Prefix(ctx *Context, op uint64) (Value, error)

func (*String) Set 

func (s *String) Set(index, val Value) error

func (String) String 

func (s String) String() string

func (*String) Type 

func (s *String) Type() string

type StringIterator 

type StringIterator struct {
	ReferenceSemanticsImpl
	Runes []rune
	Init  int
	End   int
}

func (*StringIterator) Clone 

func (it *StringIterator) Clone() Value

func (*StringIterator) IsIterable added in v0.5.11 

func (it *StringIterator) IsIterable() Bool

func (*StringIterator) Iterator added in v0.5.11 

func (it *StringIterator) Iterator(ctx *Context) Value

func (*StringIterator) Key 

func (it *StringIterator) Key(ctx *Context) Value

func (*StringIterator) Next 

func (it *StringIterator) Next() bool

func (*StringIterator) ObjectKey added in v0.5.11 

func (it *StringIterator) ObjectKey() string

func (*StringIterator) String 

func (it *StringIterator) String() string

func (*StringIterator) Type 

func (it *StringIterator) Type() string

func (*StringIterator) Value 

func (it *StringIterator) Value(ctx *Context) Value

type Style 

type Style struct {
	ReferenceSemanticsImpl
	// contains filtered or unexported fields
}

func (*Style) Bg16 

func (s *Style) Bg16(idx uint8) *Style

func (*Style) Bg256 

func (s *Style) Bg256(idx uint8) *Style

func (*Style) BgHex 

func (s *Style) BgHex(hex string) (*Style, error)

func (*Style) BgHexMust 

func (s *Style) BgHexMust(hex string) *Style

BgHexMust is BgHex without the error return, for call sites using a compile-time-known-valid literal. Panics on malformed input — do not use with user- or script-supplied strings.

func (*Style) BgName 

func (s *Style) BgName(name string) (*Style, error)

func (*Style) BgRGB 

func (s *Style) BgRGB(r, g, b uint8) *Style

func (*Style) Binop 

func (s *Style) Binop(ctx *Context, op uint64, rhs Value) (Value, error)
func (s *Style) Blink() *Style

func (*Style) Bold 

func (s *Style) Bold() *Style

func (*Style) Boolean 

func (s *Style) Boolean() Bool

func (*Style) Clone 

func (s *Style) Clone() Value

func (*Style) Dim 

func (s *Style) Dim() *Style

func (*Style) Enabled 

func (s *Style) Enabled(on bool) *Style

func (*Style) Equals 

func (s *Style) Equals(ctx *Context, other Value) Bool

func (*Style) Fg16 

func (s *Style) Fg16(idx uint8) *Style

func (*Style) Fg256 

func (s *Style) Fg256(idx uint8) *Style

func (*Style) FgHex 

func (s *Style) FgHex(hex string) (*Style, error)

func (*Style) FgHexMust 

func (s *Style) FgHexMust(hex string) *Style

FgHexMust is FgHex without the error return, for call sites using a compile-time-known-valid literal. Panics on malformed input — do not use with user- or script-supplied strings.

func (*Style) FgName 

func (s *Style) FgName(name string) (*Style, error)

func (*Style) FgRGB 

func (s *Style) FgRGB(r, g, b uint8) *Style

func (*Style) Fill 

func (s *Style) Fill(a ...any) string

func (*Style) GetVTable 

func (s *Style) GetVTable(ctx *Context) Value

func (*Style) Italic 

func (s *Style) Italic() *Style

func (*Style) LookUp 

func (s *Style) LookUp(ctx *Context, message Value) Value

func (*Style) NoReset 

func (s *Style) NoReset() *Style

func (*Style) ObjectKey 

func (s *Style) ObjectKey() string

func (*Style) Prefix 

func (s *Style) Prefix(ctx *Context, op uint64) (Value, error)

func (*Style) Reverse 

func (s *Style) Reverse() *Style

func (*Style) Sprint 

func (s *Style) Sprint(a ...any) string

func (*Style) Sprintf 

func (s *Style) Sprintf(format string, a ...any) string

func (*Style) Strike 

func (s *Style) Strike() *Style

func (*Style) String 

func (s *Style) String() string

func (*Style) Type 

func (s *Style) Type() string

func (*Style) Underline 

func (s *Style) Underline() *Style

func (*Style) Width 

func (s *Style) Width(w int) *Style

type Thread 

type Thread struct {
	ReferenceSemanticsImpl
	Frames  []frame
	Stack   []Value
	Script  *Script
	Frame   *frame
	Invoker *Thread
	State   ThreadState
	Channel Value
	Reg     uint64
	// contains filtered or unexported fields
}

func (*Thread) Binop 

func (th *Thread) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (*Thread) Boolean 

func (th *Thread) Boolean() Bool

func (*Thread) Clone 

func (th *Thread) Clone() Value

func (*Thread) Equals 

func (th *Thread) Equals(ctx *Context, other Value) Bool

func (*Thread) GetVTable 

func (th *Thread) GetVTable(ctx *Context) Value

func (*Thread) LookUp 

func (th *Thread) LookUp(ctx *Context, message Value) Value

func (*Thread) ObjectKey 

func (th *Thread) ObjectKey() string

func (*Thread) Prefix 

func (th *Thread) Prefix(ctx *Context, op uint64) (Value, error)

func (*Thread) Reset 

func (th *Thread) Reset(fn *Function) *Thread

func (*Thread) String 

func (th *Thread) String() string

func (*Thread) Type 

func (th *Thread) Type() string

type ThreadState 

type ThreadState int
const (
	Ready ThreadState = iota
	Running
	Suspended
	Waiting
	Done
)

func (ThreadState) String 

func (state ThreadState) String() string

type Time 

type Time time.Time

func (Time) Binop 

func (t Time) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (Time) Boolean 

func (t Time) Boolean() Bool

func (Time) Call 

func (t Time) Call(ctx *Context, args ...Value) (Value, error)

func (Time) Clone 

func (t Time) Clone() Value

func (Time) Equals 

func (t Time) Equals(ctx *Context, other Value) Bool

func (Time) Get 

func (t Time) Get(ctx *Context, index Value) Value

func (Time) GetVTable 

func (t Time) GetVTable(ctx *Context) Value

func (Time) IsCallable 

func (t Time) IsCallable() Bool

func (Time) IsIterable 

func (t Time) IsIterable() Bool

func (Time) Iterator 

func (t Time) Iterator(ctx *Context) Value

func (Time) LookUp 

func (t Time) LookUp(ctx *Context, message Value) Value

func (Time) MarshalJSON 

func (t Time) MarshalJSON() ([]byte, error)

func (Time) ObjectKey 

func (t Time) ObjectKey() string

func (Time) Prefix 

func (t Time) Prefix(ctx *Context, op uint64) (Value, error)

func (Time) Set 

func (t Time) Set(index, val Value) error

func (Time) String 

func (t Time) String() string

func (Time) Type 

func (t Time) Type() string

type UserIterator added in v0.5.11 

type UserIterator struct {
	ReferenceSemanticsImpl
	// contains filtered or unexported fields
}

func (*UserIterator) Boolean added in v0.5.11 

func (vi *UserIterator) Boolean() Bool

func (*UserIterator) Clone added in v0.5.11 

func (vi *UserIterator) Clone() Value

func (*UserIterator) IsIterable added in v0.5.11 

func (vi *UserIterator) IsIterable() Bool

func (*UserIterator) Iterator added in v0.5.11 

func (vi *UserIterator) Iterator(ctx *Context) Value

func (*UserIterator) Key added in v0.5.11 

func (vi *UserIterator) Key(ctx *Context) Value

func (*UserIterator) Next added in v0.5.11 

func (vi *UserIterator) Next() bool

func (*UserIterator) ObjectKey added in v0.5.11 

func (it *UserIterator) ObjectKey() string

func (*UserIterator) String added in v0.5.11 

func (vi *UserIterator) String() string

func (*UserIterator) Type added in v0.5.11 

func (vi *UserIterator) Type() string

func (*UserIterator) Value added in v0.5.11 

func (vi *UserIterator) Value(ctx *Context) Value

type VM 

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

func (*VM) Inspect 

func (vm *VM) Inspect(ip int)

type Value 

type Value interface {
	Boolean() Bool
	Prefix(ctx *Context, op uint64) (Value, error)
	Binop(ctx *Context, op uint64, other Value) (Value, error)
	Get(ctx *Context, message Value) Value
	Set(Value, Value) error
	Equals(ctx *Context, value Value) Bool
	IsIterable() Bool
	Iterator(ctx *Context) Value
	IsCallable() Bool
	Call(ctx *Context, args ...Value) (Value, error)
	String() string
	Type() string
	Clone() Value
	ObjectKey() string
	LookUp(ctx *Context, message Value) Value
	GetVTable(ctx *Context) Value
}

type ValueSemanticsImpl 

type ValueSemanticsImpl struct{}

Value semantics default impl

func (ValueSemanticsImpl) Binop 

func (i ValueSemanticsImpl) Binop(*Context, uint64, Value) (Value, error)

func (ValueSemanticsImpl) Boolean 

func (i ValueSemanticsImpl) Boolean() Bool

func (ValueSemanticsImpl) Call 

func (i ValueSemanticsImpl) Call(ctx *Context, args ...Value) (Value, error)

func (ValueSemanticsImpl) Clone 

func (i ValueSemanticsImpl) Clone() Value

func (ValueSemanticsImpl) Equals 

func (i ValueSemanticsImpl) Equals(*Context, Value) Bool

func (ValueSemanticsImpl) Get 

func (i ValueSemanticsImpl) Get(*Context, Value) Value

func (ValueSemanticsImpl) GetVTable 

func (i ValueSemanticsImpl) GetVTable(ctx *Context) Value

func (ValueSemanticsImpl) IsCallable 

func (i ValueSemanticsImpl) IsCallable() Bool

func (ValueSemanticsImpl) IsIterable 

func (i ValueSemanticsImpl) IsIterable() Bool

func (ValueSemanticsImpl) Iterator 

func (i ValueSemanticsImpl) Iterator(*Context) Value

func (ValueSemanticsImpl) LookUp 

func (i ValueSemanticsImpl) LookUp(*Context, Value) Value

func (ValueSemanticsImpl) MarshalJSON 

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

func (ValueSemanticsImpl) ObjectKey 

func (i ValueSemanticsImpl) ObjectKey() string

func (ValueSemanticsImpl) Prefix 

func (i ValueSemanticsImpl) Prefix(*Context, uint64) (Value, error)

func (ValueSemanticsImpl) Set 

func (i ValueSemanticsImpl) Set(Value, Value) error

func (ValueSemanticsImpl) String 

func (i ValueSemanticsImpl) String() string

func (ValueSemanticsImpl) Type 

func (i ValueSemanticsImpl) Type() string

type VidaBytesBuilder 

type VidaBytesBuilder struct {
	ReferenceSemanticsImpl
	Buffer *bytes.Buffer
}

Bytes Builder Value

func (*VidaBytesBuilder) Binop 

func (bb *VidaBytesBuilder) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (*VidaBytesBuilder) Clone 

func (bb *VidaBytesBuilder) Clone() Value

func (*VidaBytesBuilder) Equals 

func (bb *VidaBytesBuilder) Equals(ctx *Context, other Value) Bool

func (*VidaBytesBuilder) GetVTable 

func (bb *VidaBytesBuilder) GetVTable(ctx *Context) Value

func (*VidaBytesBuilder) LookUp 

func (bb *VidaBytesBuilder) LookUp(ctx *Context, message Value) Value

func (*VidaBytesBuilder) ObjectKey 

func (bb *VidaBytesBuilder) ObjectKey() string

func (*VidaBytesBuilder) Prefix 

func (bb *VidaBytesBuilder) Prefix(ctx *Context, op uint64) (Value, error)

func (*VidaBytesBuilder) String 

func (bb *VidaBytesBuilder) String() string

func (*VidaBytesBuilder) Type 

func (bb *VidaBytesBuilder) Type() string

type VidaError 

type VidaError struct {
	ReferenceSemanticsImpl
	Message Value
}

func (*VidaError) Binop 

func (e *VidaError) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (*VidaError) Boolean 

func (e *VidaError) Boolean() Bool

func (*VidaError) Clone 

func (e *VidaError) Clone() Value

func (*VidaError) Equals 

func (e *VidaError) Equals(ctx *Context, other Value) Bool

func (*VidaError) Error added in v0.5.11 

func (e *VidaError) Error() string

func (*VidaError) Get 

func (e *VidaError) Get(ctx *Context, index Value) Value

func (*VidaError) GetVTable 

func (e *VidaError) GetVTable(ctx *Context) Value

func (*VidaError) IsCallable 

func (e *VidaError) IsCallable() Bool

func (*VidaError) IsIterable 

func (e *VidaError) IsIterable() Bool

func (*VidaError) Iterator 

func (e *VidaError) Iterator(ctx *Context) Value

func (*VidaError) LookUp 

func (e *VidaError) LookUp(ctx *Context, message Value) Value

func (*VidaError) ObjectKey 

func (e *VidaError) ObjectKey() string

func (*VidaError) Prefix 

func (e *VidaError) Prefix(ctx *Context, op uint64) (Value, error)

func (*VidaError) Set 

func (e *VidaError) Set(index, val Value) error

func (*VidaError) String 

func (e *VidaError) String() string

func (*VidaError) Type 

func (e *VidaError) Type() string

type VidaRunTimeError 

type VidaRunTimeError struct {
	ScriptID string
	Message  string
	ErrType  string
	Line     uint
}

func NewRuntimeError 

func NewRuntimeError(scriptID string, message string, errorType string, line uint) *VidaRunTimeError

func (*VidaRunTimeError) Error 

func (e *VidaRunTimeError) Error() string

type VidaStringBuilder 

type VidaStringBuilder struct {
	ReferenceSemanticsImpl
	Builder *strings.Builder
}

String Builder Value

func (*VidaStringBuilder) Binop 

func (sb *VidaStringBuilder) Binop(ctx *Context, op uint64, rhs Value) (Value, error)

func (*VidaStringBuilder) Clone 

func (sb *VidaStringBuilder) Clone() Value

func (*VidaStringBuilder) Equals 

func (sb *VidaStringBuilder) Equals(ctx *Context, other Value) Bool

func (*VidaStringBuilder) GetVTable 

func (sb *VidaStringBuilder) GetVTable(ctx *Context) Value

func (*VidaStringBuilder) LookUp 

func (sb *VidaStringBuilder) LookUp(ctx *Context, message Value) Value

func (*VidaStringBuilder) ObjectKey 

func (sb *VidaStringBuilder) ObjectKey() string

func (*VidaStringBuilder) Prefix 

func (sb *VidaStringBuilder) Prefix(ctx *Context, op uint64) (Value, error)

func (*VidaStringBuilder) String 

func (sb *VidaStringBuilder) String() string

func (*VidaStringBuilder) Type 

func (sb *VidaStringBuilder) Type() string

Source Files

View all Source files

Directories

Path Synopsis
cmd
vida command

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