rustfmt.toml

# Rust Formatter Configuration for Robson v2
# Enforces consistent code style across all crates

# Edition (align with workspace Cargo.toml)
edition = "2021"

# Line width (default: 100, we use 100 for readability)
max_width = 100

# Hard tabs vs spaces (use spaces for consistency)
hard_tabs = false
tab_spaces = 4

# Imports
imports_granularity = "Crate"  # Group imports by crate
group_imports = "StdExternalCrate"  # std, external, local
reorder_imports = true

# Functions
fn_params_layout = "Tall"  # Each param on new line if exceeds max_width
fn_call_width = 80

# Structs and enums
struct_lit_width = 40  # Max width before breaking struct literals
enum_discrim_align_threshold = 20

# Chains (method calls)
chain_width = 80
use_small_heuristics = "Default"

# Comments
wrap_comments = true
comment_width = 80
normalize_comments = true
normalize_doc_attributes = true

# Formatting
use_field_init_shorthand = true  # Use `field` instead of `field: field`
use_try_shorthand = true  # Use `?` instead of `try!`
force_explicit_abi = true  # Require explicit `extern "C"`

# Newlines
newline_style = "Unix"  # LF only (not CRLF)
blank_lines_upper_bound = 2  # Max consecutive blank lines
blank_lines_lower_bound = 0

# Match statements
match_arm_blocks = true  # Force braces for match arms with single expr
match_block_trailing_comma = true

# Control flow
control_brace_style = "AlwaysSameLine"  # `} else {` on same line
brace_style = "SameLineWhere"

# Where clauses
where_single_line = false  # Always break where clauses to new lines

# Miscellaneous
remove_nested_parens = true  # Simplify `((x))` to `(x)`
spaces_around_ranges = false  # `0..10` not `0 .. 10`
overflow_delimited_expr = true  # Allow breaking long expressions

# Doc comments
format_code_in_doc_comments = true  # Format code blocks in /// comments