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docs: Add comment re expr_call duplication #4638

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65e8c44
Add comment re `expr_call` duplication
max-sixty Jun 20, 2024
fae0021
Merge branch 'main' into question-re-expr-call
max-sixty Jun 22, 2024
7acc477
Merge branch 'main' into question-re-expr-call
max-sixty Jun 22, 2024
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3 changes: 3 additions & 0 deletions prqlc/prqlc-parser/src/parser/expr.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -30,6 +30,9 @@ pub fn expr() -> impl Parser<TokenKind, Expr, Error = PError> + Clone {
.map(|x| x.to_string())
.map(ExprKind::Internal);

// This simply inlines `expr_call`. But if we call `expr_call` here, we get a
// stack overflow — possibly because this is a recursive parser?
// let nested_expr = pipeline(expr_call().boxed()).boxed();
let nested_expr = pipeline(lambda_func(expr.clone()).or(func_call(expr.clone()))).boxed();

let tuple = ident_part()
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