1. @DomName('WebGLRenderingContext.attachShader')
  2. @DocsEditable()
void attachShader(Program program, Shader shader)

Source 

@DomName('WebGLRenderingContext.attachShader')
@DocsEditable()
void attachShader(Program program, Shader shader) =>
    _blink.BlinkWebGLRenderingContext.instance
        .attachShader_Callback_2_(this, program, shader);