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README.md

stylex-constants

Part of the StyleX SWC Plugin workspace

Overview

Single source of truth for every compile-time constant in the StyleX compiler. This crate centralises CSS global values, error messages, property classifications, shorthand expansion tables, and style priority rankings so that all downstream crates share one canonical definition without risk of duplication or circular dependencies.

  • Performance-first collections — all lookup tables use FxHashMap / FxHashSet from rustc-hash
  • Zero internal dependencies — leaf crate with no workspace deps
  • Extracted for deduplication — eliminates scattered constant definitions across the compiler pipeline

Architecture

  • Layer: 0 — Primitives (no internal deps)
  • Depends on: None (leaf crate)
  • Depended on by: stylex-macros, stylex-ast, stylex-css, stylex-evaluator, stylex-js, stylex-structures, stylex-transform, stylex-types

Dependency Graph

Dependency Graph

graph TD
  subgraph L0["Primitives"]
    stylex_constants["constants"]
    stylex_regex["regex"]
    stylex_utils["utils"]
  end

  subgraph L1["Proc Macros"]
    stylex_macros["macros"]
  end

  subgraph L2["Domain Leaves"]
    stylex_enums["enums"]
    stylex_js["js"]
    stylex_logs["logs"]
    stylex_css_parser["css-parser"]
    stylex_path_resolver["path-resolver"]
  end

  subgraph L3["Core Data Structures"]
    stylex_structures["structures"]
  end

  subgraph L4["Type System"]
    stylex_types["types"]
  end

  subgraph L5["AST Foundations"]
    stylex_ast["ast"]
  end

  subgraph L6["Evaluation"]
    stylex_evaluator["evaluator"]
  end

  subgraph L7["CSS Processing"]
    stylex_css["css"]
  end

  subgraph L8["StyleX Transform"]
    stylex_transform["transform"]
  end

  subgraph L9["Compilers"]
    stylex_compiler_rs["rs-compiler"]
  end

  stylex_macros        --> stylex_constants

  stylex_enums         --> stylex_macros
  stylex_js            --> stylex_constants
  stylex_js            --> stylex_macros
  stylex_logs          --> stylex_macros
  stylex_css_parser    --> stylex_macros
  stylex_path_resolver --> stylex_macros

  stylex_structures    --> stylex_constants
  stylex_structures    --> stylex_enums
  stylex_structures    --> stylex_macros

  stylex_types         --> stylex_constants
  stylex_types         --> stylex_enums
  stylex_types         --> stylex_macros
  stylex_types         --> stylex_structures
  stylex_types         --> stylex_utils

  stylex_ast           --> stylex_constants
  stylex_ast           --> stylex_macros
  stylex_ast           --> stylex_types
  stylex_ast           --> stylex_utils

  stylex_evaluator     --> stylex_ast
  stylex_evaluator     --> stylex_constants
  stylex_evaluator     --> stylex_js
  stylex_evaluator     --> stylex_macros
  stylex_evaluator     --> stylex_path_resolver
  stylex_evaluator     --> stylex_types

  stylex_css           --> stylex_ast
  stylex_css           --> stylex_constants
  stylex_css           --> stylex_css_parser
  stylex_css           --> stylex_enums
  stylex_css           --> stylex_evaluator
  stylex_css           --> stylex_macros
  stylex_css           --> stylex_regex
  stylex_css           --> stylex_structures
  stylex_css           --> stylex_types

  stylex_transform     --> stylex_ast
  stylex_transform     --> stylex_constants
  stylex_transform     --> stylex_css
  stylex_transform     --> stylex_css_parser
  stylex_transform     --> stylex_enums
  stylex_transform     --> stylex_logs
  stylex_transform     --> stylex_macros
  stylex_transform     --> stylex_path_resolver
  stylex_transform     --> stylex_regex
  stylex_transform     --> stylex_structures
  stylex_transform     --> stylex_types
  stylex_transform     --> stylex_utils

  stylex_compiler_rs   --> stylex_ast
  stylex_compiler_rs   --> stylex_enums
  stylex_compiler_rs   --> stylex_logs
  stylex_compiler_rs   --> stylex_macros
  stylex_compiler_rs   --> stylex_regex
  stylex_compiler_rs   --> stylex_structures
  stylex_compiler_rs   --> stylex_transform
  stylex_compiler_rs   --> stylex_types
  stylex_compiler_rs   --> stylex_utils

  classDef l0 fill:#e8e8e8,stroke:#999,color:#333
  classDef l1 fill:#dce8ff,stroke:#6699cc,color:#333
  classDef l2 fill:#dcf5dc,stroke:#66aa66,color:#333
  classDef l3 fill:#fff3dc,stroke:#cc9933,color:#333
  classDef l4 fill:#ffe8dc,stroke:#cc6633,color:#333
  classDef l5 fill:#f5dcff,stroke:#9933cc,color:#333
  classDef l6 fill:#dcfff5,stroke:#33aaaa,color:#333
  classDef l7 fill:#ffdcdc,stroke:#cc3333,color:#333
  classDef l8 fill:#fffdc0,stroke:#aaaa33,color:#333
  classDef l9 fill:#ffc0c0,stroke:#cc0000,color:#333

  class stylex_constants,stylex_regex,stylex_utils l0
  class stylex_macros l1
  class stylex_enums,stylex_js,stylex_logs,stylex_css_parser,stylex_path_resolver l2
  class stylex_structures l3
  class stylex_types l4
  class stylex_ast l5
  class stylex_evaluator l6
  class stylex_css l7
  class stylex_transform l8
  class stylex_compiler_rs l9
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License

MIT — see LICENSE