tengo

package module
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Published: Mar 19, 2019 License: MIT Imports: 0 Imported by: 1

README

The Tengo Language

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Tengo is a small, dynamic, fast, secure script language for Go.

Tengo is fast and secure because it's compiled/executed as bytecode on stack-based VM that's written in native Go.

/* The Tengo Language */

fmt := import("fmt")

each := func(seq, fn) {
    for x in seq { fn(x) }
}

sum := func(init, seq) {
    each(seq, func(x) { init += x })
    return init
}

fmt.println(sum(0, [1, 2, 3]))   // "6"
fmt.println(sum("", [1, 2, 3]))  // "123"

Run this code in the Playground

Features

Benchmark

fib(35) fibt(35) Type
Go 67ms 4ms Go (native)
Tengo 3,104ms 5ms VM on Go
Lua 1,754ms 3ms Lua (native)
go-lua 5,121ms 5ms Lua VM on Go
GopherLua 5,499ms 5ms Lua VM on Go
Python 2,859ms 26ms Python (native)
starlark-go 16,846ms 5ms Python-like Interpreter on Go
gpython 18,638ms 6ms Python Interpreter on Go
goja 6,626ms 5ms JS VM on Go
otto 88,489ms 13ms JS Interpreter on Go
Anko 108,415ms 15ms Interpreter on Go

* fib(35): Fibonacci(35)
* fibt(35): tail-call version of Fibonacci(35)
* Go does not read the source code from file, while all other cases do
* See here for commands/codes used

References

Documentation

Index

Constants

This section is empty.

Variables

View Source
var (
	// MaxStringLen is the maximum byte-length for string value.
	// Note this limit applies to all compiler/VM instances in the process.
	MaxStringLen = 2147483647

	// MaxBytesLen is the maximum length for bytes value.
	// Note this limit applies to all compiler/VM instances in the process.
	MaxBytesLen = 2147483647
)

Functions

This section is empty.

Types

This section is empty.

Directories

Path Synopsis
cmd
ast

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