// return a barebones Runtime with almost nothing in it -- variable
// assignment and lookup works, but not much else
func minimalRuntime() *Runtime {
stack := types.NewValueStack()
locals := types.NewValueMap()
stack.Push(locals)
return &Runtime{
stack: &stack,
dag: dag.NewDAG(),
}
}
func NewRuntime(
options build.BuildOptions, script string, ast *dsl.ASTRoot) *Runtime {
stack := types.NewValueStack()
builtins := defineBuiltins()
stack.Push(builtins)
// Local variables are per-script, but we only support a single
// script right now. So might as well initialize the script-local
// namespace right here.
locals := types.NewValueMap()
stack.Push(locals)
return &Runtime{
options: options,
script: script,
ast: ast,
builtins: builtins,
stack: &stack,
dag: dag.NewDAG(),
}
}