builtin.go

Documentation: github.com/tetratelabs/wazero/internal/gojs

     1  package gojs
     2  
     3  import (
     4  	"github.com/tetratelabs/wazero/internal/gojs/config"
     5  	"github.com/tetratelabs/wazero/internal/gojs/goos"
     6  )
     7  
     8  // newJsGlobal = js.Global() // js.go init
     9  func newJsGlobal(config *config.Config) *jsVal {
    10  	var fetchProperty interface{} = goos.Undefined
    11  	proc := &processState{
    12  		cwd:   config.Workdir,
    13  		umask: config.Umask,
    14  	}
    15  
    16  	return newJsVal(goos.RefValueGlobal, "global").
    17  		addProperties(map[string]interface{}{
    18  			"Object":     objectConstructor,
    19  			"Array":      arrayConstructor,
    20  			"crypto":     jsCrypto,
    21  			"Uint8Array": uint8ArrayConstructor,
    22  			"fetch":      fetchProperty,
    23  			"process":    newJsProcess(proc),
    24  			"fs":         newJsFs(proc),
    25  			"Date":       jsDateConstructor,
    26  		})
    27  }
    28  
    29  var (
    30  	// Values below are not built-in, but verifiable by looking at Go's source.
    31  	// When marked "XX.go init", these are eagerly referenced during syscall.init
    32  
    33  	// jsGo is not a constant
    34  
    35  	// objectConstructor is used by js.ValueOf to make `map[string]any`.
    36  	//	Get("Object") // js.go init
    37  	objectConstructor = newJsVal(goos.RefObjectConstructor, "Object")
    38  
    39  	// arrayConstructor is used by js.ValueOf to make `[]any`.
    40  	//	Get("Array") // js.go init
    41  	arrayConstructor = newJsVal(goos.RefArrayConstructor, "Array")
    42  
    43  	// uint8ArrayConstructor = js.Global().Get("Uint8Array")
    44  	//	// fs_js.go, rand_js.go init
    45  	//
    46  	// It has only one invocation pattern: `buf := uint8Array.New(len(b))`
    47  	uint8ArrayConstructor = newJsVal(goos.RefUint8ArrayConstructor, "Uint8Array")
    48  )
    49
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