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Let list and table exprs get indexed (#307)

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JT 2021-11-08 12:18:00 +13:00 committed by GitHub
parent fcee3c65bd
commit b5bade6187
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 57 additions and 72 deletions
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17
crates/nu-engine/src/eval.rs
View File

@ -502,17 +502,18 @@ pub fn eval_variable(
let mut output_cols = vec![];
let mut output_vals = vec![];
let mut vars = vec![];
let mut var_names = vec![];
let mut var_types = vec![];
let mut commands = vec![];
let mut aliases = vec![];
let mut modules = vec![];
for frame in &engine_state.scope {
for var in &frame.vars {
vars.push(Value::String {
val: String::from_utf8_lossy(var.0).to_string(),
span,
});
var_names.push(String::from_utf8_lossy(var.0).to_string());
let var = engine_state.get_var(*var.1);
var_types.push(Value::string(var.to_string(), span));
}
for command in &frame.decls {
@ -538,7 +539,11 @@ pub fn eval_variable(
}
output_cols.push("vars".to_string());
output_vals.push(Value::List { vals: vars, span });
output_vals.push(Value::Record {
cols: var_names,
vals: var_types,
span,
});
output_cols.push("commands".to_string());
output_vals.push(Value::List {

2
crates/nu-parser/src/lex.rs
View File

@ -145,7 +145,7 @@ pub fn lex_item(
let _ = block_level.pop();
}
} else if c == b'(' {
// We enceountered an opening `(` delimiter.
// We encountered an opening `(` delimiter.
block_level.push(BlockKind::Paren);
} else if c == b')' {
// We encountered a closing `)` delimiter. Pop off the opening `(`.

11
crates/nu-parser/src/parse_keywords.rs
View File

@ -429,15 +429,8 @@ pub fn parse_module(
if block_bytes.ends_with(b"}") {
end -= 1;
} else {
error = error.or_else(|| {
Some(ParseError::Unclosed(
"}".into(),
Span {
start: end,
end: end + 1,
},
))
});
error =
error.or_else(|| Some(ParseError::Unclosed("}".into(), Span { start: end, end })));
}
let block_span = Span { start, end };

74
crates/nu-parser/src/parser.rs
View File

@ -1302,15 +1302,8 @@ pub fn parse_full_cell_path(
if bytes.ends_with(b")") {
end -= 1;
} else {
error = error.or_else(|| {
Some(ParseError::Unclosed(
")".into(),
Span {
start: end,
end: end + 1,
},
))
});
error = error
.or_else(|| Some(ParseError::Unclosed(")".into(), Span { start: end, end })));
}
let span = Span { start, end };
@ -1338,6 +1331,13 @@ pub fn parse_full_cell_path(
},
true,
)
} else if bytes.starts_with(b"[") {
let (output, err) = parse_table_expression(working_set, head.span);
error = error.or(err);
tokens.next();
(output, true)
} else if bytes.starts_with(b"$") {
let (out, err) = parse_variable_expr(working_set, head.span);
error = error.or(err);
@ -1369,6 +1369,7 @@ pub fn parse_full_cell_path(
let (tail, err) = parse_cell_path(working_set, tokens, expect_dot, span);
error = error.or(err);
if !tail.is_empty() {
(
Expression {
expr: Expr::FullCellPath(Box::new(FullCellPath { head, tail })),
@ -1378,6 +1379,18 @@ pub fn parse_full_cell_path(
},
error,
)
} else {
let ty = head.ty.clone();
(
Expression {
expr: Expr::FullCellPath(Box::new(FullCellPath { head, tail })),
ty,
span: full_cell_span,
custom_completion: None,
},
error,
)
}
} else {
(garbage(span), error)
}
@ -1963,15 +1976,7 @@ pub fn parse_signature(
if bytes.ends_with(b"]") {
end -= 1;
} else {
error = error.or_else(|| {
Some(ParseError::Unclosed(
"]".into(),
Span {
start: end,
end: end + 1,
},
))
});
error = error.or_else(|| Some(ParseError::Unclosed("]".into(), Span { start: end, end })));
}
let (sig, err) = parse_signature_helper(working_set, Span { start, end });
@ -2328,15 +2333,7 @@ pub fn parse_list_expression(
if bytes.ends_with(b"]") {
end -= 1;
} else {
error = error.or_else(|| {
Some(ParseError::Unclosed(
"]".into(),
Span {
start: end,
end: end + 1,
},
))
});
error = error.or_else(|| Some(ParseError::Unclosed("]".into(), Span { start: end, end })));
}
let span = Span { start, end };
@ -2407,15 +2404,7 @@ pub fn parse_table_expression(
if bytes.ends_with(b"]") {
end -= 1;
} else {
error = error.or_else(|| {
Some(ParseError::Unclosed(
"]".into(),
Span {
start: end,
end: end + 1,
},
))
});
error = error.or_else(|| Some(ParseError::Unclosed("]".into(), Span { start: end, end })));
}
let span = Span { start, end };
@ -2530,15 +2519,7 @@ pub fn parse_block_expression(
if bytes.ends_with(b"}") {
end -= 1;
} else {
error = error.or_else(|| {
Some(ParseError::Unclosed(
"}".into(),
Span {
start: end,
end: end + 1,
},
))
});
error = error.or_else(|| Some(ParseError::Unclosed("}".into(), Span { start: end, end })));
}
let span = Span { start, end };
@ -2798,7 +2779,8 @@ pub fn parse_value(
}
SyntaxShape::Any => {
if bytes.starts_with(b"[") {
parse_value(working_set, span, &SyntaxShape::Table)
//parse_value(working_set, span, &SyntaxShape::Table)
parse_full_cell_path(working_set, None, span)
} else {
let shapes = [
SyntaxShape::Int,

7
src/tests.rs
View File

@ -804,7 +804,7 @@ fn help_works_with_missing_requirements() -> TestResult {
#[test]
fn scope_variable() -> TestResult {
run_test(r#"let x = 3; $scope.vars.0"#, "$x")
run_test(r#"let x = 3; $scope.vars.'$x'"#, "int")
}
#[test]
@ -854,3 +854,8 @@ fn precedence_of_or_groups() -> TestResult {
fn where_on_ranges() -> TestResult {
run_test(r#"1..10 | where $it > 8 | math sum"#, "19")
}
#[test]
fn index_on_list() -> TestResult {
run_test(r#"[1, 2, 3].1"#, "2")
}