Support parsing #![feature(default_field_values)]
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- RFC: rust-lang/rfcs#3681 - Tracking issue: rust-lang/rust#132162 - Feature gate: `#![feature(default_field_values)]` ```rust struct Pet { name: Option<String>, age: i128 = 42, // ^^^^ } ``` Fix dtolnay#1774.
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dtolnay
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Mar 6, 2025
| /// Default value: `field_name: i32 = 1` | ||
| /// | ||
| /// `#![feature(default_field_values)]` | ||
| pub default: Option<(Token![=], Expr)>, |
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This field cannot be added until 3.x, and even then, not unless the default_field_values feature is closer to stabilization.
For now please send a different PR that parses structs containing field default values as syn::Item::Verbatim instead. I'll close this PR to keep this version of the implementation for 3.x.
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#![feature(default_field_values)]Fix #1774.