refactor: Use collect_breaking_versions from v2 directly in PG (Nomic…

…Foundation#1002)

Part of NomicFoundation#638 

Follow-up to NomicFoundation#991

Pretty straightforward: instead of visiting the previously built v1
definition structure, we defer to `Language::collect_breaking_changes`
as the definitions overlap - the breaking changes are defined as
versions in which the syntax items may be evaluated differently, which
means that these are exactly the versions that will be referenced for
the conditional syntax item evaluation in the parser/lexer.

.vscode/settings.json

@@ -3,7 +3,8 @@
  "editor.rulers": [120],
  "files.associations": {
  "**/documentation/overrides/**/*.html": "jinja-html",
- "*.ts.jinja2": "jinja-js" // until this is merged: https://github.com/samuelcolvin/jinjahtml-vscode/pull/148
+ "*.ts.jinja2": "jinja-js", // until this is merged: https://github.com/samuelcolvin/jinjahtml-vscode/pull/148
+ "*.wit.jinja2": "jinja" // until this is merged: https://github.com/samuelcolvin/jinjahtml-vscode/pull/148
  },
  "editor.unicodeHighlight.allowedCharacters": {
  "꞉": true // used in CST snapshot tests

Cargo.toml

@@ -107,6 +107,7 @@ napi-derive = { version = "2.16.5" }
 nom = { version = "7.1.3" }
 num-format = { version = "0.4.4" }
 once_cell = { version = "1.19.0" }
+paste = { version = "1.0.15" }
 proc-macro2 = { version = "1.0.84" }
 quote = { version = "1.0.36" }
 rayon = { version = "1.10.0" }
@@ -134,6 +135,8 @@ thiserror = { version = "1.0.61" }
 trybuild = { version = "1.0.96" }
 toml = { version = "0.8.13" }
 url = { version = "2.3.1" }
+wit-bindgen = { version = "0.26.0" }
+wit-bindgen-cli = { version = "0.26.0" }
 
 [workspace.lints.rust]
 unused_crate_dependencies = "warn"

crates/codegen/ebnf/Cargo.toml

@@ -11,7 +11,6 @@ codegen_language_definition = { workspace = true }
 derive-new = { workspace = true }
 indexmap = { workspace = true }
 Inflector = { workspace = true }
-strum_macros = { workspace = true }
 
 [lints]
 workspace = true

crates/codegen/ebnf/src/builder.rs

@@ -1,8 +1,8 @@
 use std::collections::HashMap;
 
 use codegen_language_definition::model::{
- EnumItem, EnumVariant, Field, FragmentItem, Identifier, Item, KeywordDefinition, KeywordItem,
- KeywordValue, Language, OperatorModel, PrecedenceExpression, PrecedenceItem,
+ BuiltInLabel, EnumItem, EnumVariant, Field, FragmentItem, Identifier, Item, KeywordDefinition,
+ KeywordItem, KeywordValue, Language, OperatorModel, PrecedenceExpression, PrecedenceItem,
  PrecedenceOperator, PrimaryExpression, RepeatedItem, Scanner, SeparatedItem, StructItem,
  TokenDefinition, TokenItem, TriviaItem, VersionSpecifier,
 };
@@ -11,21 +11,6 @@ use inflector::Inflector;
 
 use crate::model::{Definition, DefinitionKind, Entry, Expression, Value};
 
-#[allow(dead_code)]
-#[derive(strum_macros::AsRefStr)]
-#[strum(serialize_all = "snake_case")]
-enum BuiltInLabel {
- // _SLANG_INTERNAL_RESERVED_NODE_LABELS_ (keep in sync)
- Item,
- Variant,
- Separator,
- Operand,
- LeftOperand,
- RightOperand,
- LeadingTrivia,
- TrailingTrivia,
-}
-
 pub struct Builder {
  section_index: usize,
  topic_index: usize,

crates/codegen/language/definition/Cargo.toml

@@ -15,6 +15,7 @@ proc-macro2 = { workspace = true }
 quote = { workspace = true }
 semver = { workspace = true }
 serde = { workspace = true }
+strum = { workspace = true }
 strum_macros = { workspace = true }
 syn = { workspace = true }
 thiserror = { workspace = true }