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Fix var decl. improve for loop

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This commit is contained in:
JT 2021-07-30 19:30:11 +12:00
parent b0ffaf1c91
commit b6f00d07e8
3 changed files with 5 additions and 20 deletions
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5
src/eval.rs
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@ -157,7 +157,7 @@ fn eval_call(state: &State, stack: Stack, call: &Call) -> Result<Value, ShellErr
let rhs = eval_expression(state, stack.clone(), keyword_expr)?;
println!("Adding: {:?} to {}", rhs, var_id);
//println!("Adding: {:?} to {}", rhs, var_id);
StackFrame::add_var(stack, var_id, rhs);
Ok(Value::Unknown)
@ -250,8 +250,7 @@ fn eval_call(state: &State, stack: Stack, call: &Call) -> Result<Value, ShellErr
if curr == end_val {
break;
} else {
let block_stack = StackFrame::enter_scope(stack.clone());
eval_block(state, block_stack, block)?;
eval_block(state, stack.clone(), block)?;
StackFrame::add_var(
stack.clone(),

2
src/main.rs
View file

@ -26,7 +26,7 @@ fn main() -> std::io::Result<()> {
working_set.add_decl(sig.into());
let sig = Signature::build("let")
.required("var_name", SyntaxShape::Variable, "variable name")
.required("var_name", SyntaxShape::VarWithOptType, "variable name")
.required(
"initial_value",
SyntaxShape::Keyword(b"=".to_vec(), Box::new(SyntaxShape::Expression)),

18
src/parser.rs
View file

@ -1212,21 +1212,19 @@ impl<'a> ParserWorkingSet<'a> {
let type_bytes = self.get_span_contents(spans[*spans_idx]);
let ty = self.parse_type(type_bytes);
*spans_idx += 1;
let id = self.add_variable(bytes[0..(bytes.len() - 1)].to_vec(), ty.clone());
(
Expression {
expr: Expr::Var(id),
span: span(&spans[*spans_idx - 2..*spans_idx]),
span: span(&spans[*spans_idx - 1..*spans_idx + 1]),
ty,
},
None,
)
} else {
let id = self.add_variable(bytes[0..(bytes.len() - 1)].to_vec(), Type::Unknown);
*spans_idx += 1;
(
Expression {
expr: Expr::Var(id),
@ -1238,12 +1236,11 @@ impl<'a> ParserWorkingSet<'a> {
}
} else {
let id = self.add_variable(bytes, Type::Unknown);
*spans_idx += 1;
(
Expression {
expr: Expr::Var(id),
span: span(&spans[*spans_idx - 1..*spans_idx]),
span: span(&spans[*spans_idx..*spans_idx + 1]),
ty: Type::Unknown,
},
None,
@ -2093,17 +2090,6 @@ impl<'a> ParserWorkingSet<'a> {
}
}
pub fn parse_keyword(&self, span: Span, keyword: &[u8]) -> Option<ParseError> {
if self.get_span_contents(span) == keyword {
None
} else {
Some(ParseError::Mismatch(
String::from_utf8_lossy(keyword).to_string(),
span,
))
}
}
pub fn parse_def(&mut self, spans: &[Span]) -> (Statement, Option<ParseError>) {
let mut error = None;
let name = self.get_span_contents(spans[0]);