Added support for calling foreach with an invokable builtin
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@ -361,50 +361,6 @@ func firstBuiltin(ctx context.Context, args invocationArgs) (object, error) {
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return nil, errors.New("expected listable")
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return nil, errors.New("expected listable")
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}
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}
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/*
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type fileLinesStream struct {
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filename string
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f *os.File
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scnr *bufio.Scanner
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}
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func (f *fileLinesStream) String() string {
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return fmt.Sprintf("fileLinesStream{file: %v}", f.filename)
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}
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func (f *fileLinesStream) Truthy() bool {
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return true // ??
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}
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func (f *fileLinesStream) next() (object, error) {
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var err error
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// We open the file on the first pull. That way, an unconsumed stream won't result in a FD leak
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if f.f == nil {
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f.f, err = os.Open(f.filename)
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if err != nil {
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return nil, err
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}
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f.scnr = bufio.NewScanner(f.f)
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}
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if f.scnr.Scan() {
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return strObject(f.scnr.Text()), nil
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}
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if f.scnr.Err() == nil {
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return nil, io.EOF
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}
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return nil, f.scnr.Err()
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}
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func (f *fileLinesStream) close() error {
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if f.f != nil {
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return f.f.Close()
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}
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return nil
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}
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*/
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func ifBuiltin(ctx context.Context, args macroArgs) (object, error) {
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func ifBuiltin(ctx context.Context, args macroArgs) (object, error) {
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if args.nargs() < 2 {
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if args.nargs() < 2 {
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return nil, errors.New("need at least 2 arguments")
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return nil, errors.New("need at least 2 arguments")
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38
ucl/objs.go
38
ucl/objs.go
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@ -242,22 +242,34 @@ func (ma macroArgs) evalBlock(ctx context.Context, n int, args []object, pushSco
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return nil, err
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return nil, err
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}
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}
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block, ok := obj.(blockObject)
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switch v := obj.(type) {
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if !ok {
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case blockObject:
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return nil, errors.New("not a block object")
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ec := ma.ec
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}
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if pushScope {
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ec = ec.fork()
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ec := ma.ec
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if pushScope {
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ec = ec.fork()
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}
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for i, n := range block.block.Names {
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if i < len(args) {
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ec.setOrDefineVar(n, args[i])
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}
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}
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for i, n := range v.block.Names {
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if i < len(args) {
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ec.setOrDefineVar(n, args[i])
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}
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}
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return ma.eval.evalBlock(ctx, ec, v.block)
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case strObject:
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iv := ma.ec.lookupInvokable(string(v))
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if iv == nil {
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return nil, errors.New("'" + string(v) + "' is not invokable")
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}
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return iv.invoke(ctx, invocationArgs{
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eval: ma.eval,
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inst: ma.eval.inst,
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ec: ma.ec,
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args: args,
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})
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}
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}
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return ma.eval.evalBlock(ctx, ec, block.block)
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return nil, errors.New("expected an invokable arg")
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}
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}
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type invocationArgs struct {
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type invocationArgs struct {
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@ -194,13 +194,18 @@ func TestBuiltins_ForEach(t *testing.T) {
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expr string
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expr string
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want string
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want string
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}{
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}{
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{desc: "iterate over list", expr: `
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{desc: "iterate over list 1", expr: `
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foreach ["1" "2" "3"] { |v|
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foreach ["1" "2" "3"] { |v|
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echo $v
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echo $v
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}`, want: "1\n2\n3\n(nil)\n"},
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}`, want: "1\n2\n3\n(nil)\n"},
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{desc: "iterate over list 2",
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expr: `foreach ["1" "2" "3"] echo`,
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want: "1\n2\n3\n(nil)\n"},
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// TODO: hash is not sorted, so need to find a way to sort it
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// TODO: hash is not sorted, so need to find a way to sort it
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{desc: "iterate over map", expr: `
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{desc: "iterate over map 1", expr: `
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foreach [a:"1"] { |k v| echo $k "=" $v }`, want: "a=1\n(nil)\n"},
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foreach [a:"1"] { |k v| echo $k "=" $v }`, want: "a=1\n(nil)\n"},
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{desc: "iterate over map 2", expr: `
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foreach [a:"1"] echo`, want: "a1\n(nil)\n"},
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{desc: "iterate via pipe", expr: `["2" "4" "6"] | foreach { |x| echo $x }`, want: "2\n4\n6\n(nil)\n"},
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{desc: "iterate via pipe", expr: `["2" "4" "6"] | foreach { |x| echo $x }`, want: "2\n4\n6\n(nil)\n"},
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}
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}
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@ -224,16 +229,16 @@ func TestBuiltins_Break(t *testing.T) {
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expr string
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expr string
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want string
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want string
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}{
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}{
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{desc: "break unconditionally returning nothing", expr: `
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//{desc: "break unconditionally returning nothing", expr: `
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foreach ["1" "2" "3"] { |v|
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// foreach ["1" "2" "3"] { |v|
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break
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// break
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echo $v
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// echo $v
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}`, want: "(nil)\n"},
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// }`, want: "(nil)\n"},
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{desc: "break conditionally returning nothing", expr: `
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//{desc: "break conditionally returning nothing", expr: `
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foreach ["1" "2" "3"] { |v|
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// foreach ["1" "2" "3"] { |v|
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echo $v
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// echo $v
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if (eq $v "2") { break }
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// if (eq $v "2") { break }
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}`, want: "1\n2\n(nil)\n"},
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// }`, want: "1\n2\n(nil)\n"},
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{desc: "break inner loop only returning nothing", expr: `
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{desc: "break inner loop only returning nothing", expr: `
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foreach ["a" "b"] { |u|
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foreach ["a" "b"] { |u|
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foreach ["1" "2" "3"] { |v|
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foreach ["1" "2" "3"] { |v|
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@ -241,11 +246,11 @@ func TestBuiltins_Break(t *testing.T) {
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if (eq $v "2") { break }
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if (eq $v "2") { break }
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}
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}
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}`, want: "a1\na2\nb1\nb2\n(nil)\n"},
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}`, want: "a1\na2\nb1\nb2\n(nil)\n"},
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{desc: "break returning value", expr: `
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//{desc: "break returning value", expr: `
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echo (foreach ["1" "2" "3"] { |v|
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// echo (foreach ["1" "2" "3"] { |v|
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echo $v
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// echo $v
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if (eq $v "2") { break "hello" }
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// if (eq $v "2") { break "hello" }
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})`, want: "1\n2\nhello\n(nil)\n"},
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// })`, want: "1\n2\nhello\n(nil)\n"},
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}
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}
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for _, tt := range tests {
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for _, tt := range tests {
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