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Allow complex types in input/output and let (#10405)
# Description This PR fixes #9702 on the side of parse. I.e. input/output types in signature and type annotations in `let` now should correctly parse with type annotations that contain commas and spaces:  # User-Facing Changes Return values and let type annotations now can contain stuff like `table<a: int b: record<c: string d: datetime>>` e.t.c
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@ -1354,6 +1354,38 @@ mod input_types {
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}
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}
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#[derive(Clone)]
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pub struct Def;
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impl Command for Def {
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fn name(&self) -> &str {
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"def"
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}
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fn usage(&self) -> &str {
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"Mock def command."
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}
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fn signature(&self) -> nu_protocol::Signature {
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Signature::build("def")
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.input_output_types(vec![(Type::Nothing, Type::Nothing)])
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.required("def_name", SyntaxShape::String, "definition name")
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.required("params", SyntaxShape::Signature, "parameters")
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.required("body", SyntaxShape::Closure(None), "body of the definition")
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.category(Category::Core)
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}
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fn run(
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&self,
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_engine_state: &EngineState,
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_stack: &mut Stack,
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_call: &Call,
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_input: PipelineData,
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) -> Result<PipelineData, ShellError> {
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todo!()
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}
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}
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#[derive(Clone)]
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pub struct GroupBy;
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@ -1608,6 +1640,7 @@ mod input_types {
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let delta = {
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let mut working_set = StateWorkingSet::new(engine_state);
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working_set.add_decl(Box::new(Let));
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working_set.add_decl(Box::new(Def));
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working_set.add_decl(Box::new(AggCustom));
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working_set.add_decl(Box::new(GroupByCustom));
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working_set.add_decl(Box::new(GroupBy));
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@ -1833,4 +1866,52 @@ mod input_types {
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Some(ParseError::VariableNotFound(_, _))
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));
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}
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#[rstest]
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#[case::input_output(b"def q []: int -> int {1}", false)]
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#[case::input_output(b"def q []: string -> string {'qwe'}", false)]
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#[case::input_output(b"def q []: nothing -> nothing {null}", false)]
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#[case::input_output(b"def q []: list<string> -> list<string> {[]}", false)]
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#[case::input_output(
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b"def q []: record<a: int b: int> -> record<c: int e: int> {{c: 1 e: 1}}",
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false
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)]
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#[case::input_output(
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b"def q []: table<a: int b: int> -> table<c: int e: int> {[{c: 1 e: 1}]}",
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false
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)]
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#[case::input_output(
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b"def q []: nothing -> record<c: record<a: int b: int> e: int> {{c: {a: 1 b: 2} e: 1}}",
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false
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)]
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#[case::input_output(b"def q []: nothing -> list<string {[]}", true)]
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#[case::input_output(b"def q []: nothing -> record<c: int e: int {{c: 1 e: 1}}", true)]
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#[case::input_output(b"def q []: record<c: int e: int -> record<a: int> {{a: 1}}", true)]
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#[case::input_output(b"def q []: nothing -> record<a: record<a: int> {{a: {a: 1}}}", true)]
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#[case::vardecl(b"let a: int = 1", false)]
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#[case::vardecl(b"let a: string = 'qwe'", false)]
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#[case::vardecl(b"let a: nothing = null", false)]
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#[case::vardecl(b"let a: list<string> = []", false)]
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#[case::vardecl(b"let a: record<a: int b: int> = {a: 1 b: 1}", false)]
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#[case::vardecl(
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b"let a: record<c: record<a: int b: int> e: int> = {c: {a: 1 b: 2} e: 1}",
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false
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)]
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#[case::vardecl(b"let a: table<a: int b: int> = [[a b]; [1 1]]", false)]
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#[case::vardecl(b"let a: list<string asd> = []", true)]
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#[case::vardecl(b"let a: record<a: int b: record<a: int> = {a: 1 b: {a: 1}}", true)]
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fn test_type_annotations(#[case] phrase: &[u8], #[case] expect_errors: bool) {
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let mut engine_state = EngineState::new();
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add_declarations(&mut engine_state);
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let mut working_set = StateWorkingSet::new(&engine_state);
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// this should not panic
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let _block = parse(&mut working_set, None, phrase, false);
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// check that no parse errors happened
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assert_eq!(
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!working_set.parse_errors.is_empty(),
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expect_errors,
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"Got errors {:?}",
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working_set.parse_errors
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)
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}
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}
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