mirror of
https://github.com/colbymchenry/codegraph.git
synced 2026-10-07 02:05:41 +08:00
Colby MchenryandClaude Opus 5.5
86708bf519
Same-kind, same-name declarations on one line shared an ID and silently overwrote each other in SQLite. Use per-extraction collision tracking to append a UTF-16 column only to later distinct declarations. Apply the same rule across wasm, Rust language walkers, Liquid, and CFML while preserving file IDs and edge endpoints. Add persistence, call-edge, identity-vector, and Unicode parity regressions. Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
1563 lines
60 KiB
Rust
1563 lines
60 KiB
Rust
//! Dart extraction — a faithful Rust port of the dart paths of
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//! `TreeSitterExtractor` (src/extraction/tree-sitter.ts) plus
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//! languages/dart.ts.
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//!
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//! Same porting contract as the other walkers: behavior parity, bug-for-bug.
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//! The authoritative quirk list is docs/design/dart-kernel-port-checklist.md.
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//! The center of gravity is THE SIBLING-BODY DOUBLE-WALK: dart attaches every
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//! function/method body as a NEXT SIBLING of its signature node, and the TS
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//! walkers consume the body TWICE — once via resolveBody (attributed to the
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//! function/method) and once via the enclosing generic walk (attributed to
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//! the file/class). The deterministic result — duplicate local-function
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//! nodes with the SAME id under different parents, duplicated
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//! calls/instantiates refs, file/class-attributed fn-ref twins — must be
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//! reproduced byte-for-byte in the observed interleave; a "helpful" dedupe
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//! breaks parity. Other load-bearing oddities preserved on purpose:
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//! callTypes is EMPTY (all call refs ride extractBareCall's selector
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//! walking in the body walker — cascades are invisible, `?.` encodes like
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//! `.`); `ConfigT.load()` double-emits (calls + a static-member references
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//! ref — no callee-of-call skip in the dart branch); operator methods mint
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//! `method "<anonymous>"`; the unnamed constructor is skipped
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//! (isMisparsedFunction) while named ctors/factories are named by the CTOR
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//! name with the class as returnType; instance fields mint NO nodes (only
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//! static_final_declaration → constant, via the hook); prefixed return
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//! types keep the PREFIX (`other.OtherClass f()` → returnType `other` —
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//! bug, preserved); enum `with` mixins emit nothing while enum `implements`
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//! works; deferred imports are invisible; named-argument callbacks are NOT
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//! fn-ref-captured; `async*`/`sync*` are NOT async. Positions in UTF-16
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//! code units. Files with parse errors defer to wasm (3.4–20.7% both-arm
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//! incidence — empty object patterns and unnamed `library;` dominate).
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use crate::buffers::{
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build_meta, edge_kind_index, node_kind_index, Arena, BoolFlags, EdgeRow, EmitOut, NodeRow,
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RefRow, StrRef, Tables, FLAG_IS_ASYNC, FLAG_IS_EXPORTED, FLAG_IS_STATIC, FUNCTION_REF_CODE,
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NONE, NONE_STR,
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};
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use crate::docstring::preceding_docstring;
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use crate::ids;
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use crate::textutil as util;
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use regex::Regex;
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use std::collections::{HashMap, HashSet};
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use std::sync::OnceLock;
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use tree_sitter::{Node, Parser};
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const MAX_VALUE_REF_NODES: usize = 20_000;
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/// NAME_STOPLIST (function-ref.ts).
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fn is_stoplisted(name: &str) -> bool {
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matches!(
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name,
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"this" | "self" | "super" | "null" | "nil" | "true" | "false" | "undefined" | "new"
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| "NULL" | "nullptr" | "None"
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)
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}
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/// BUILTIN_TYPES (tree-sitter.ts:5768-5782).
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fn is_builtin_type(name: &str) -> bool {
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matches!(
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name,
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"string" | "number" | "boolean" | "void" | "null" | "undefined" | "never" | "any"
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| "unknown" | "object" | "symbol" | "bigint" | "true" | "false"
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| "str" | "bool" | "i8" | "i16" | "i32" | "i64" | "i128" | "isize"
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| "u8" | "u16" | "u32" | "u64" | "u128" | "usize" | "f32" | "f64" | "char"
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| "int" | "long" | "short" | "byte" | "float" | "double"
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| "int8" | "int16" | "int32" | "int64" | "uint8" | "uint16" | "uint32" | "uint64"
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| "float32" | "float64" | "complex64" | "complex128" | "rune" | "error"
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| "Int" | "Long" | "Short" | "Byte" | "Float" | "Double" | "Boolean" | "Char"
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| "Unit" | "String" | "Any" | "AnyRef" | "AnyVal" | "Nothing" | "Null"
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)
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}
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/// extractDartReturnType's simple-name gate + the static-member receiver gate.
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fn simple_type_name_re() -> &'static Regex {
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static RE: OnceLock<Regex> = OnceLock::new();
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RE.get_or_init(|| Regex::new(r"^[A-Za-z_]\w*$").unwrap())
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}
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fn cap_ident_re() -> &'static Regex {
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static RE: OnceLock<Regex> = OnceLock::new();
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RE.get_or_init(|| Regex::new(r"^[A-Z][A-Za-z0-9_]*$").unwrap())
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}
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/// The chained-call re-encode gate (`/^[A-Z]/`).
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fn starts_upper_re() -> &'static Regex {
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static RE: OnceLock<Regex> = OnceLock::new();
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RE.get_or_init(|| Regex::new(r"^[A-Z]").unwrap())
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}
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/// extractDartReturnType's `<...>` strip (`/<[^>]*>/g`).
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fn angle_args_re() -> &'static Regex {
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static RE: OnceLock<Regex> = OnceLock::new();
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RE.get_or_init(|| Regex::new(r"<[^>]*>").unwrap())
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}
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struct Scope {
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row: u32,
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kind: &'static str,
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name: String,
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}
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struct Cand {
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from: u32,
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name: String,
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line: u32,
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column_byte: usize,
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row: usize,
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}
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struct ValueScope<'t> {
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row: u32,
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node: Node<'t>,
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name: String,
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}
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#[derive(Default)]
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struct Extra {
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docstring: Option<String>,
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signature: Option<String>,
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/// 0 = absent; 1 public, 2 private.
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visibility: u8,
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is_async: Option<bool>,
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is_static: Option<bool>,
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return_type: Option<String>,
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/// resolveBody-driven endLine extension (LIVE for dart sibling bodies).
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end_line_override: Option<u32>,
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}
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pub struct Walker<'t> {
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src: &'t str,
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file_path: &'t str,
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line_starts: Vec<usize>,
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arena: Arena,
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node_id_allocator: ids::NodeIdAllocator,
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tables: Tables,
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stack: Vec<Scope>,
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node_ids: Vec<String>,
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defined_fn_names: HashSet<String>,
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imported_names: HashSet<String>,
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fn_ref_cands: Vec<Cand>,
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fs_values: HashMap<String, u32>,
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fs_value_counts: HashMap<String, u32>,
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value_scopes: Vec<ValueScope<'t>>,
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}
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pub fn extract(file_path: &str, source: &str) -> Result<EmitOut, String> {
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let grammar = crate::langs::grammar_for("dart").ok_or("no dart grammar")?;
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let t0 = std::time::Instant::now();
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let mut parser = Parser::new();
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parser
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.set_language(&grammar)
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.map_err(|e| format!("set_language(dart) failed: {e}"))?;
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let tree = parser
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.parse(source, None)
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.ok_or_else(|| "parser returned null tree".to_string())?;
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if tree.root_node().has_error() {
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return Err("defer: parse tree contains errors — wasm recovery is canonical".to_string());
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}
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let mut w = Walker {
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src: source,
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file_path,
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line_starts: util::line_starts(source),
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arena: Arena::default(),
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node_id_allocator: ids::NodeIdAllocator::default(),
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tables: Tables::default(),
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stack: Vec::new(),
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node_ids: Vec::new(),
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defined_fn_names: HashSet::new(),
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imported_names: HashSet::new(),
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fn_ref_cands: Vec::new(),
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fs_values: HashMap::new(),
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fs_value_counts: HashMap::new(),
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value_scopes: Vec::new(),
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};
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// File node (tree-sitter.ts:508-521).
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let line_count = source.bytes().filter(|b| *b == b'\n').count() as u32 + 1;
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let base_name = file_path.rsplit(['/', '\\']).next().unwrap_or(file_path);
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let mut flags = BoolFlags::default();
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flags.set(FLAG_IS_EXPORTED, false);
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let file_id = w.arena.put(&ids::file_node_id(file_path));
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let name_ref = w.arena.put(base_name);
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let qn_ref = w.arena.put(file_path);
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w.tables.push_node(&NodeRow {
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kind: node_kind_index("file").unwrap(),
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visibility: 0,
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flags,
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start_line: 1,
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end_line: line_count,
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start_column: 0,
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end_column: 0,
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name: name_ref,
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qualified_name: qn_ref,
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id: file_id,
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docstring: NONE_STR,
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signature: NONE_STR,
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decorators: NONE_STR,
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type_parameters: NONE_STR,
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return_type: NONE_STR,
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extra_json: NONE_STR,
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});
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w.node_ids.push(ids::file_node_id(file_path));
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w.stack.push(Scope { row: 0, kind: "file", name: base_name.to_string() });
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w.visit(tree.root_node());
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w.flush_fn_ref_candidates();
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w.flush_value_refs(tree.root_node());
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w.stack.pop();
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let duration_ms = t0.elapsed().as_secs_f64() * 1000.0;
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let meta = build_meta(&w.tables, w.arena.len(), NONE_STR, duration_ms);
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Ok(EmitOut {
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meta,
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nodes: w.tables.nodes,
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edges: w.tables.edges,
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refs: w.tables.refs,
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arena: w.arena.into_vec(),
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})
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}
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impl<'t> Walker<'t> {
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fn text(&self, node: Node) -> &'t str {
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&self.src[node.byte_range()]
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}
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fn line_of(&self, node: Node) -> u32 {
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node.start_position().row as u32 + 1
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}
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fn col_of(&self, node: Node) -> u32 {
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util::col16(self.src, &self.line_starts, node.start_position().row, node.start_byte())
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}
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fn end_col_of(&self, node: Node) -> u32 {
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util::col16(self.src, &self.line_starts, node.end_position().row, node.end_byte())
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}
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fn top_row(&self) -> u32 {
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self.stack.last().map(|s| s.row).unwrap_or(0)
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}
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fn inside_class_like(&self) -> bool {
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self.stack
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.last()
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.map(|s| matches!(s.kind, "class" | "struct" | "interface" | "trait" | "enum" | "module"))
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.unwrap_or(false)
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}
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fn push_ref_at(&mut self, from_row: u32, name: &str, kind: &str, node: Node) {
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let name_ref = self.arena.put(name);
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self.tables.push_ref(&RefRow {
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from_idx: from_row,
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kind: edge_kind_index(kind).unwrap(),
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line: self.line_of(node),
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column: self.col_of(node),
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reference_name: name_ref,
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candidates: NONE_STR,
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from_id_str: NONE_STR,
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});
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// Dart import names are URIs (`package:x/y.dart`) — they match neither
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// SIMPLE_NAME nor QUALIFIED_IMPORT, so importedNames stays empty in
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// practice; ported for fidelity.
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if kind == "imports" {
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if util::simple_name().is_match(name) {
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self.imported_names.insert(name.to_string());
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} else if let Some(c) = util::qualified_import().captures(name) {
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self.imported_names.insert(c[1].to_string());
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}
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}
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}
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// --- createNode (tree-sitter.ts:1308) ---------------------------------
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fn create_node(&mut self, kind: &'static str, name: &str, node: Node<'t>, extra: Extra) -> Option<u32> {
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if name.is_empty() {
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return None;
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}
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let start_line = self.line_of(node);
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let column = self.col_of(node);
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let id = self.node_id_allocator.generate(self.file_path, kind, name, start_line, column);
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let qualified = {
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let mut parts: Vec<&str> = Vec::new();
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for s in &self.stack {
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if s.kind != "file" {
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parts.push(&s.name);
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}
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}
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let mut qn = parts.join("::");
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if !qn.is_empty() {
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qn.push_str("::");
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}
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qn.push_str(name);
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qn
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};
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// endLine extension (:1322-1334) — LIVE for dart: a function/method
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// node's endLine extends to its sibling function_body's end.
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let mut end_line = node.end_position().row as u32 + 1;
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if let Some(ext) = extra.end_line_override {
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if ext > end_line {
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end_line = ext;
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}
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}
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let name_ref = self.arena.put(name);
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let qn_ref = self.arena.put(&qualified);
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let id_ref = self.arena.put(&id);
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let doc_ref = opt_str(&mut self.arena, extra.docstring.as_deref());
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let sig_ref = opt_str(&mut self.arena, extra.signature.as_deref());
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let ret_ref = opt_str(&mut self.arena, extra.return_type.as_deref());
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let mut flags = BoolFlags::default();
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if let Some(v) = extra.is_async {
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flags.set(FLAG_IS_ASYNC, v);
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}
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if let Some(v) = extra.is_static {
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flags.set(FLAG_IS_STATIC, v);
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}
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let row = self.tables.push_node(&NodeRow {
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kind: node_kind_index(kind).unwrap(),
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visibility: extra.visibility,
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flags,
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start_line,
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end_line,
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start_column: self.col_of(node),
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end_column: self.end_col_of(node),
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name: name_ref,
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qualified_name: qn_ref,
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id: id_ref,
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docstring: doc_ref,
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signature: sig_ref,
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decorators: NONE_STR,
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||
type_parameters: NONE_STR,
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return_type: ret_ref,
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extra_json: NONE_STR,
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});
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self.node_ids.push(id.clone());
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if kind == "function" || kind == "method" {
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self.defined_fn_names.insert(name.to_string());
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}
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let parent_row = self.top_row();
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self.tables.push_edge(&EdgeRow {
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source_idx: parent_row,
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target_idx: row,
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kind: edge_kind_index("contains").unwrap(),
|
||
provenance: 0,
|
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line: NONE,
|
||
column: NONE,
|
||
metadata_json: NONE_STR,
|
||
source_id_str: NONE_STR,
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||
target_id_str: NONE_STR,
|
||
});
|
||
|
||
// captureValueRefScope (:735-767). Dart mints only `constant` targets.
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if (kind == "constant" || kind == "variable")
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&& util::utf16_len(name) >= 3
|
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&& util::has_upper_or_underscore().is_match(name)
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{
|
||
let parent_ok = self
|
||
.stack
|
||
.last()
|
||
.map(|s| matches!(s.kind, "file" | "class" | "module" | "struct" | "enum"))
|
||
.unwrap_or(false);
|
||
if parent_ok {
|
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self.fs_values.insert(name.to_string(), row);
|
||
*self.fs_value_counts.entry(name.to_string()).or_insert(0) += 1;
|
||
}
|
||
}
|
||
if matches!(kind, "function" | "method" | "constant" | "variable") {
|
||
self.value_scopes.push(ValueScope { row, node, name: name.to_string() });
|
||
}
|
||
|
||
Some(row)
|
||
}
|
||
|
||
// --- languages/dart.ts helper transcriptions --------------------------
|
||
|
||
/// dartInnerSignature (dart.ts:9-17).
|
||
fn inner_signature(&self, node: Node<'t>) -> Node<'t> {
|
||
if node.kind() == "method_signature" {
|
||
let mut cursor = node.walk();
|
||
let inner = node.named_children(&mut cursor).find(|c| {
|
||
matches!(c.kind(), "function_signature" | "getter_signature" | "setter_signature")
|
||
});
|
||
if let Some(inner) = inner {
|
||
return inner;
|
||
}
|
||
}
|
||
node
|
||
}
|
||
|
||
/// dartConstructorSignature (dart.ts:25-35).
|
||
fn constructor_signature(&self, node: Node<'t>) -> Option<Node<'t>> {
|
||
if matches!(node.kind(), "factory_constructor_signature" | "constructor_signature") {
|
||
return Some(node);
|
||
}
|
||
if node.kind() == "method_signature" {
|
||
let mut cursor = node.walk();
|
||
return node.named_children(&mut cursor).find(|c| {
|
||
matches!(c.kind(), "factory_constructor_signature" | "constructor_signature")
|
||
});
|
||
}
|
||
None
|
||
}
|
||
|
||
/// dartEnclosingTypeName (dart.ts:38-50).
|
||
fn enclosing_type_name(&self, node: Node<'t>) -> Option<&'t str> {
|
||
let mut p = node.parent();
|
||
while let Some(parent) = p {
|
||
if matches!(
|
||
parent.kind(),
|
||
"class_definition" | "mixin_declaration" | "extension_declaration" | "extension_type_declaration" | "enum_declaration"
|
||
) {
|
||
return parent.child_by_field_name("name").map(|n| self.text(n));
|
||
}
|
||
p = parent.parent();
|
||
}
|
||
None
|
||
}
|
||
|
||
/// dartCtorInfo (dart.ts:61-70).
|
||
fn ctor_info(&self, node: Node<'t>) -> Option<(String, String)> {
|
||
let ctor = self.constructor_signature(node)?;
|
||
let mut cursor = ctor.walk();
|
||
let ids: Vec<Node<'t>> = ctor
|
||
.named_children(&mut cursor)
|
||
.filter(|c| c.kind() == "identifier")
|
||
.collect();
|
||
let class_name = self.enclosing_type_name(node)?;
|
||
let first = ids.first()?;
|
||
if self.text(*first) != class_name {
|
||
return None; // misparsed method, not a ctor
|
||
}
|
||
let ctor_name = ids.get(1).map(|n| self.text(*n)).unwrap_or(class_name);
|
||
Some((class_name.to_string(), ctor_name.to_string()))
|
||
}
|
||
|
||
/// extractDartReturnType (dart.ts:80-92).
|
||
fn return_type_of(&self, node: Node<'t>) -> Option<String> {
|
||
if let Some((class_name, _)) = self.ctor_info(node) {
|
||
return Some(class_name);
|
||
}
|
||
let sig = self.inner_signature(node);
|
||
let mut cursor = sig.walk();
|
||
let ret = sig
|
||
.named_children(&mut cursor)
|
||
.find(|c| c.kind() == "type_identifier")?;
|
||
let text = angle_args_re().replace_all(self.text(ret), "");
|
||
let text = text.trim();
|
||
let last = text.split('.').next_back()?;
|
||
if last.is_empty() || !simple_type_name_re().is_match(last) {
|
||
return None;
|
||
}
|
||
Some(last.to_string())
|
||
}
|
||
|
||
/// isMisparsedFunction (dart.ts:177-188) — skip the UNNAMED constructor.
|
||
fn is_unnamed_ctor(&self, node: Node<'t>) -> bool {
|
||
match self.ctor_info(node) {
|
||
Some((class_name, ctor_name)) => ctor_name == class_name,
|
||
None => false,
|
||
}
|
||
}
|
||
|
||
/// getSignature (dart.ts:189-208).
|
||
fn signature_of(&self, node: Node<'t>) -> Option<String> {
|
||
let sig = self.inner_signature(node);
|
||
let mut c1 = sig.walk();
|
||
let params = sig
|
||
.named_children(&mut c1)
|
||
.find(|c| c.kind() == "formal_parameter_list");
|
||
let mut c2 = sig.walk();
|
||
let ret = sig
|
||
.named_children(&mut c2)
|
||
.find(|c| matches!(c.kind(), "type_identifier" | "void_type"));
|
||
if params.is_none() && ret.is_none() {
|
||
return None;
|
||
}
|
||
let mut result = String::new();
|
||
if let Some(r) = ret {
|
||
result.push_str(self.text(r));
|
||
result.push(' ');
|
||
}
|
||
if let Some(p) = params {
|
||
result.push_str(self.text(p));
|
||
}
|
||
let trimmed = result.trim();
|
||
if trimmed.is_empty() {
|
||
None
|
||
} else {
|
||
Some(trimmed.to_string())
|
||
}
|
||
}
|
||
|
||
/// getVisibility (dart.ts:209-222) — `_` prefix = private; every
|
||
/// constructor is public (the unwrap misses ctor signatures / the name
|
||
/// FIELD is the class identifier).
|
||
fn visibility_of(&self, node: Node<'t>) -> u8 {
|
||
let name_node = if node.kind() == "method_signature" {
|
||
let mut cursor = node.walk();
|
||
let inner = node.named_children(&mut cursor).find(|c| {
|
||
matches!(c.kind(), "function_signature" | "getter_signature" | "setter_signature")
|
||
});
|
||
inner.and_then(|i| {
|
||
let mut ic = i.walk();
|
||
let found = i.named_children(&mut ic).find(|c| c.kind() == "identifier");
|
||
found
|
||
})
|
||
} else {
|
||
node.child_by_field_name("name")
|
||
};
|
||
match name_node {
|
||
Some(n) if self.text(n).starts_with('_') => 2,
|
||
_ => 1,
|
||
}
|
||
}
|
||
|
||
/// isAsync (dart.ts:223-233) — the `async` anon child of the SIBLING
|
||
/// function_body; `async*`/`sync*` are different token types → false.
|
||
fn is_async_of(&self, node: Node<'t>) -> bool {
|
||
if let Some(next) = node.next_named_sibling() {
|
||
if next.kind() == "function_body" {
|
||
for i in 0..next.child_count() {
|
||
if let Some(c) = next.child(i) {
|
||
if c.kind() == "async" {
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
false
|
||
}
|
||
|
||
/// isStatic (dart.ts:234-243).
|
||
fn is_static_of(&self, node: Node<'t>) -> bool {
|
||
if node.kind() == "method_signature" {
|
||
for i in 0..node.child_count() {
|
||
if let Some(c) = node.child(i) {
|
||
if c.kind() == "static" {
|
||
return true;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
false
|
||
}
|
||
|
||
/// resolveBody (dart.ts:158-171).
|
||
fn resolve_body(&self, node: Node<'t>) -> Option<Node<'t>> {
|
||
if matches!(node.kind(), "function_signature" | "method_signature") {
|
||
let next = node.next_named_sibling()?;
|
||
if next.kind() == "function_body" {
|
||
return Some(next);
|
||
}
|
||
return None;
|
||
}
|
||
if let Some(standard) = node.child_by_field_name("body") {
|
||
return Some(standard);
|
||
}
|
||
let mut cursor = node.walk();
|
||
let found = node
|
||
.named_children(&mut cursor)
|
||
.find(|c| matches!(c.kind(), "class_body" | "extension_body"));
|
||
found
|
||
}
|
||
|
||
/// extractName (tree-sitter.ts:90-192) — resolveName (ctor names) →
|
||
/// name field → the method_signature inner unwrap → identifier-ish
|
||
/// child → `<anonymous>` (operators land here).
|
||
fn extract_name(&self, node: Node<'t>) -> String {
|
||
// resolveName hook (dart.ts:244-260): named ctor/factory → ctor name.
|
||
if let Some((class_name, ctor_name)) = self.ctor_info(node) {
|
||
if ctor_name != class_name {
|
||
return ctor_name;
|
||
}
|
||
}
|
||
if let Some(name_node) = node.child_by_field_name("name") {
|
||
return self.text(name_node).to_string();
|
||
}
|
||
if node.kind() == "method_signature" {
|
||
let mut cursor = node.walk();
|
||
let inner = node.named_children(&mut cursor).find(|c| {
|
||
matches!(
|
||
c.kind(),
|
||
"function_signature" | "getter_signature" | "setter_signature"
|
||
| "constructor_signature" | "factory_constructor_signature"
|
||
)
|
||
});
|
||
if let Some(inner) = inner {
|
||
let mut ic = inner.walk();
|
||
let id = inner.named_children(&mut ic).find(|c| c.kind() == "identifier");
|
||
if let Some(id) = id {
|
||
return self.text(id).to_string();
|
||
}
|
||
}
|
||
}
|
||
let mut cursor = node.walk();
|
||
for c in node.named_children(&mut cursor) {
|
||
if matches!(c.kind(), "identifier" | "type_identifier" | "simple_identifier" | "constant") {
|
||
return self.text(c).to_string();
|
||
}
|
||
}
|
||
"<anonymous>".to_string()
|
||
}
|
||
|
||
// --- the main walk (visitNode, tree-sitter.ts:936-1303) ---------------
|
||
|
||
fn visit(&mut self, node: Node<'t>) {
|
||
stack_guard!();
|
||
// The visitNode hook (dart.ts:144-157) — the constants branch.
|
||
if node.kind() == "static_final_declaration" {
|
||
let mut cursor = node.walk();
|
||
let name_node = node.named_children(&mut cursor).find(|c| c.kind() == "identifier");
|
||
if let Some(name_node) = name_node {
|
||
// signature = first value sibling's text, sliced to 100
|
||
// UTF-16 units (a flattened chain captures just its head).
|
||
let signature = name_node.next_named_sibling().map(|v| {
|
||
let (sliced, _) = util::slice_utf16(self.text(v), 100);
|
||
if util::utf16_len(&sliced) >= 100 {
|
||
format!("= {sliced}...")
|
||
} else {
|
||
format!("= {sliced}")
|
||
}
|
||
});
|
||
let name = self.text(name_node).to_string();
|
||
self.create_node("constant", &name, node, Extra { signature, ..Default::default() });
|
||
}
|
||
self.scan_fn_ref_subtree(node, 0);
|
||
return;
|
||
}
|
||
|
||
// maybeCaptureFnRefs (:990) — the double-walk fn-ref twin source.
|
||
self.maybe_capture_fn_refs(node);
|
||
|
||
match node.kind() {
|
||
"function_signature" => {
|
||
// functionTypes row — method_signature does NOT include it →
|
||
// always extractFunction, even inside a class (abstract
|
||
// members become kind `function` contained by the class).
|
||
self.extract_function(node);
|
||
return;
|
||
}
|
||
// `extension_type_declaration` is Dart 3.3's extension type. It is a
|
||
// different node from `extension_declaration` above, which is the
|
||
// older `extension` — the names are near neighbours and only one of
|
||
// them was listed.
|
||
"class_definition" | "mixin_declaration" | "extension_declaration" | "extension_type_declaration" => {
|
||
self.extract_class(node);
|
||
return;
|
||
}
|
||
"method_signature" | "constructor_signature" => {
|
||
self.extract_method(node);
|
||
return;
|
||
}
|
||
"enum_declaration" => {
|
||
self.extract_enum(node);
|
||
return;
|
||
}
|
||
"type_alias" => {
|
||
let skip = self.extract_type_alias(node);
|
||
if skip {
|
||
return;
|
||
}
|
||
}
|
||
"import_or_export" => {
|
||
self.extract_import(node);
|
||
return;
|
||
}
|
||
"new_expression" => {
|
||
// INSTANTIATION_KINDS row — from the FILE/CLASS on the
|
||
// sibling revisit (the double-walk's pass 2a).
|
||
self.extract_instantiation(node);
|
||
}
|
||
_ => {}
|
||
}
|
||
|
||
let mut cursor = node.walk();
|
||
let children: Vec<Node<'t>> = node.named_children(&mut cursor).collect();
|
||
for child in children {
|
||
self.visit(child);
|
||
}
|
||
}
|
||
|
||
// --- extractFunction / extractMethod (:1517 / :1737) ------------------
|
||
|
||
fn extract_function(&mut self, node: Node<'t>) {
|
||
stack_guard!();
|
||
// No receiver hook. Name first (resolveName inside extract_name).
|
||
let name = self.extract_name(node);
|
||
if name == "<anonymous>" {
|
||
// :1549 — body-only walk (nothing pushed). Dart signatures always
|
||
// name; preserved for fidelity.
|
||
if let Some(body) = self.resolve_body(node) {
|
||
self.visit_body(body);
|
||
}
|
||
return;
|
||
}
|
||
// isMisparsedFunction: the unnamed constructor is skipped — node
|
||
// suppressed, body still walked (attributed to the current stack top).
|
||
if self.is_unnamed_ctor(node) {
|
||
if let Some(body) = self.resolve_body(node) {
|
||
self.visit_body(body);
|
||
}
|
||
return;
|
||
}
|
||
let docstring = preceding_docstring(node, self.src);
|
||
let signature = self.signature_of(node);
|
||
let visibility = self.visibility_of(node);
|
||
let is_async = self.is_async_of(node);
|
||
let is_static = self.is_static_of(node);
|
||
let return_type = self.return_type_of(node);
|
||
let body = self.resolve_body(node);
|
||
let end_line_override = body.map(|b| b.end_position().row as u32 + 1);
|
||
let row = self.create_node(
|
||
"function",
|
||
&name,
|
||
node,
|
||
Extra {
|
||
docstring,
|
||
signature,
|
||
visibility,
|
||
is_async: Some(is_async),
|
||
is_static: Some(is_static),
|
||
return_type,
|
||
end_line_override,
|
||
},
|
||
);
|
||
let Some(row) = row else { return };
|
||
self.extract_type_annotations(node, row);
|
||
self.extract_decorators_for(node, row);
|
||
self.stack.push(Scope { row, kind: "function", name });
|
||
if let Some(body) = body {
|
||
self.visit_body(body);
|
||
}
|
||
self.stack.pop();
|
||
}
|
||
|
||
fn extract_method(&mut self, node: Node<'t>) {
|
||
// Gate (:1747): not inside class-like (no methodsAreTopLevel, no
|
||
// receiver, parent never object/object_expression) → extractFunction.
|
||
if !self.inside_class_like() {
|
||
self.extract_function(node);
|
||
return;
|
||
}
|
||
let name = self.extract_name(node);
|
||
// isMisparsedFunction — the unnamed ctor: body-only walk.
|
||
if self.is_unnamed_ctor(node) {
|
||
if let Some(body) = self.resolve_body(node) {
|
||
self.visit_body(body);
|
||
}
|
||
return;
|
||
}
|
||
let docstring = preceding_docstring(node, self.src);
|
||
let signature = self.signature_of(node);
|
||
let visibility = self.visibility_of(node);
|
||
let is_async = self.is_async_of(node);
|
||
let is_static = self.is_static_of(node);
|
||
let return_type = self.return_type_of(node);
|
||
let body = self.resolve_body(node);
|
||
let end_line_override = body.map(|b| b.end_position().row as u32 + 1);
|
||
// Operators mint method "<anonymous>" — extractMethod has NO skip.
|
||
let row = self.create_node(
|
||
"method",
|
||
&name,
|
||
node,
|
||
Extra {
|
||
docstring,
|
||
signature,
|
||
visibility,
|
||
is_async: Some(is_async),
|
||
is_static: Some(is_static),
|
||
return_type,
|
||
end_line_override,
|
||
},
|
||
);
|
||
let Some(row) = row else { return };
|
||
self.extract_type_annotations(node, row);
|
||
self.extract_decorators_for(node, row);
|
||
self.stack.push(Scope { row, kind: "method", name });
|
||
if let Some(body) = body {
|
||
self.visit_body(body);
|
||
}
|
||
self.stack.pop();
|
||
}
|
||
|
||
// --- extractClass (:1679) — classes, mixins, extensions ---------------
|
||
|
||
fn extract_class(&mut self, node: Node<'t>) {
|
||
stack_guard!();
|
||
let resolved_body = self.resolve_body(node);
|
||
// No skipBodilessClass. Anonymous `extension on String` → the name
|
||
// fallback finds the ON type's type_identifier — a class named after
|
||
// the extended type (preserved).
|
||
let name = self.extract_name(node);
|
||
let docstring = preceding_docstring(node, self.src);
|
||
let visibility = self.visibility_of(node);
|
||
let row = self.create_node(
|
||
"class",
|
||
&name,
|
||
node,
|
||
Extra { docstring, visibility, ..Default::default() },
|
||
);
|
||
let Some(row) = row else { return };
|
||
self.extract_inheritance(node, row);
|
||
// extractCsharpPrimaryCtorParamRefs — csharp-gated no-op.
|
||
self.extract_decorators_for(node, row);
|
||
self.stack.push(Scope { row, kind: "class", name });
|
||
let body = resolved_body.unwrap_or(node);
|
||
let mut cursor = body.walk();
|
||
let children: Vec<Node<'t>> = body.named_children(&mut cursor).collect();
|
||
for child in children {
|
||
self.visit(child);
|
||
}
|
||
self.stack.pop();
|
||
}
|
||
|
||
// --- extractEnum (:1914) ----------------------------------------------
|
||
|
||
fn extract_enum(&mut self, node: Node<'t>) {
|
||
stack_guard!();
|
||
let body = match self.resolve_body(node) {
|
||
Some(b) => b,
|
||
None => return,
|
||
};
|
||
let name = self.extract_name(node);
|
||
let docstring = preceding_docstring(node, self.src);
|
||
let visibility = self.visibility_of(node);
|
||
let row = self.create_node(
|
||
"enum",
|
||
&name,
|
||
node,
|
||
Extra { docstring, visibility, ..Default::default() },
|
||
);
|
||
let Some(row) = row else { return };
|
||
// Enum `with` mixins are a DIRECT child (no superclass wrapper) →
|
||
// no clause matches; `interfaces` DOES → implements only.
|
||
self.extract_inheritance(node, row);
|
||
// No extractDecoratorsFor on the enum path.
|
||
self.stack.push(Scope { row, kind: "enum", name });
|
||
let mut cursor = body.walk();
|
||
let children: Vec<Node<'t>> = body.named_children(&mut cursor).collect();
|
||
for child in children {
|
||
if child.kind() == "enum_constant" {
|
||
self.extract_enum_members(child);
|
||
} else {
|
||
self.visit(child);
|
||
}
|
||
}
|
||
self.stack.pop();
|
||
}
|
||
|
||
/// extractEnumMembers (:1958) — one enum_member per constant, positioned
|
||
/// at the enum_constant node; ctor arguments never walked.
|
||
fn extract_enum_members(&mut self, node: Node<'t>) {
|
||
if let Some(name_node) = node.child_by_field_name("name") {
|
||
let name = self.text(name_node).to_string();
|
||
self.create_node("enum_member", &name, node, Extra::default());
|
||
}
|
||
}
|
||
|
||
// --- extractTypeAlias (:2890, plain path) -----------------------------
|
||
|
||
fn extract_type_alias(&mut self, node: Node<'t>) -> bool {
|
||
let name = self.extract_name(node);
|
||
if name == "<anonymous>" {
|
||
return false;
|
||
}
|
||
let docstring = preceding_docstring(node, self.src);
|
||
// `value` field is null (type_alias has no fields) → no refs from
|
||
// the aliased type; returns false → children re-visited.
|
||
self.create_node("type_alias", &name, node, Extra { docstring, ..Default::default() });
|
||
false
|
||
}
|
||
|
||
// --- extractImport (:3170; hook dart.ts:261-304) ----------------------
|
||
|
||
fn extract_import(&mut self, node: Node<'t>) {
|
||
let find_child = |parent: Node<'t>, kind: &str| -> Option<Node<'t>> {
|
||
let mut cursor = parent.walk();
|
||
let found = parent.named_children(&mut cursor).find(|c| c.kind() == kind);
|
||
found
|
||
};
|
||
let uri_of = |spec: Node<'t>| -> Option<Node<'t>> {
|
||
let configurable = find_child(spec, "configurable_uri")?;
|
||
let uri = find_child(configurable, "uri")?;
|
||
find_child(uri, "string_literal")
|
||
};
|
||
let mut module: Option<String> = None;
|
||
if let Some(li) = find_child(node, "library_import") {
|
||
if let Some(spec) = find_child(li, "import_specification") {
|
||
if let Some(sl) = uri_of(spec) {
|
||
module = Some(self.text(sl).replace(['\'', '"'], ""));
|
||
}
|
||
}
|
||
}
|
||
if module.is_none() {
|
||
if let Some(le) = find_child(node, "library_export") {
|
||
if let Some(sl) = uri_of(le) {
|
||
module = Some(self.text(sl).replace(['\'', '"'], ""));
|
||
}
|
||
}
|
||
}
|
||
// Deferred imports (bare `uri`, no configurable_uri) → hook null →
|
||
// nothing at all (invisible).
|
||
let Some(module) = module.filter(|m| !m.is_empty()) else { return };
|
||
let signature = self.text(node).trim().to_string();
|
||
let created = self.create_node(
|
||
"import",
|
||
&module,
|
||
node,
|
||
Extra { signature: Some(signature), ..Default::default() },
|
||
);
|
||
if created.is_some() && !self.stack.is_empty() {
|
||
let parent_row = self.top_row();
|
||
self.push_ref_at(parent_row, &module, "imports", node);
|
||
}
|
||
}
|
||
|
||
// --- extractInstantiation (:4610, generic tail) -----------------------
|
||
|
||
fn extract_instantiation(&mut self, node: Node<'t>) {
|
||
if self.stack.is_empty() {
|
||
return;
|
||
}
|
||
let from_row = self.top_row();
|
||
let ctor = node
|
||
.child_by_field_name("constructor")
|
||
.or_else(|| node.child_by_field_name("type"))
|
||
.or_else(|| node.child_by_field_name("name"))
|
||
.or_else(|| node.named_child(0));
|
||
let Some(ctor) = ctor else { return };
|
||
let mut class_name = self.text(ctor).to_string();
|
||
if let Some(lt) = class_name.find('<') {
|
||
if lt > 0 {
|
||
class_name.truncate(lt);
|
||
}
|
||
}
|
||
let last_dot = class_name.rfind('.').map(|i| i as i64).unwrap_or(-1);
|
||
let last_colons = class_name.rfind("::").map(|i| (i + 1) as i64).unwrap_or(-1);
|
||
let last = last_dot.max(last_colons);
|
||
if last >= 0 {
|
||
class_name = class_name[(last as usize + 1)..].to_string();
|
||
class_name = class_name.trim_start_matches([':', '.']).to_string();
|
||
}
|
||
let class_name = class_name.trim().to_string();
|
||
if class_name.is_empty() {
|
||
return;
|
||
}
|
||
self.push_ref_at(from_row, &class_name, "instantiates", node);
|
||
}
|
||
|
||
// --- extractBareCall (dart.ts:305-379) --------------------------------
|
||
|
||
fn bare_call_name(&self, node: Node<'t>) -> Option<String> {
|
||
if node.kind() == "selector" {
|
||
let mut cursor = node.walk();
|
||
let has_arg_part = node.named_children(&mut cursor).any(|c| c.kind() == "argument_part");
|
||
if !has_arg_part {
|
||
return None;
|
||
}
|
||
let prev = node.prev_named_sibling()?;
|
||
if prev.kind() == "identifier" {
|
||
return Some(self.text(prev).to_string());
|
||
}
|
||
if prev.kind() == "selector" {
|
||
let mut pc = prev.walk();
|
||
let accessor = prev.named_children(&mut pc).find(|c| {
|
||
matches!(
|
||
c.kind(),
|
||
"unconditional_assignable_selector" | "conditional_assignable_selector"
|
||
)
|
||
});
|
||
if let Some(accessor) = accessor {
|
||
let mut ac = accessor.walk();
|
||
let method_id = accessor.named_children(&mut ac).find(|c| c.kind() == "identifier");
|
||
if let Some(method_id) = method_id {
|
||
let accessor_prev = prev.prev_named_sibling();
|
||
if let Some(ap) = accessor_prev {
|
||
if ap.kind() == "identifier" {
|
||
return Some(format!("{}.{}", self.text(ap), self.text(method_id)));
|
||
}
|
||
// Chained static-factory: the receiver is itself
|
||
// a call — re-encode `<inner>().<method>` when
|
||
// the chain starts capitalized (#750).
|
||
if ap.kind() == "selector" {
|
||
let mut apc = ap.walk();
|
||
if ap.named_children(&mut apc).any(|c| c.kind() == "argument_part") {
|
||
if let Some(inner) = self.callee_of_arg_part(ap) {
|
||
if starts_upper_re().is_match(&inner) {
|
||
return Some(format!("{}().{}", inner, self.text(method_id)));
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return Some(self.text(method_id).to_string());
|
||
}
|
||
}
|
||
}
|
||
// super.method() / this.method(): prev is a bare accessor.
|
||
if matches!(
|
||
prev.kind(),
|
||
"unconditional_assignable_selector" | "conditional_assignable_selector"
|
||
) {
|
||
let mut pc = prev.walk();
|
||
let id = prev.named_children(&mut pc).find(|c| c.kind() == "identifier");
|
||
if let Some(id) = id {
|
||
return Some(self.text(id).to_string());
|
||
}
|
||
}
|
||
return None;
|
||
}
|
||
|
||
// new_expression arm — DEAD in practice (the INSTANTIATION branch
|
||
// fires first in the body walker); ported for fidelity.
|
||
if node.kind() == "new_expression" {
|
||
let mut cursor = node.walk();
|
||
let found = node
|
||
.named_children(&mut cursor)
|
||
.find(|c| c.kind() == "type_identifier")
|
||
.map(|t| self.text(t).to_string());
|
||
return found;
|
||
}
|
||
|
||
// const EdgeInsets.all(8.0) — const constructor call.
|
||
if node.kind() == "const_object_expression" {
|
||
let mut c1 = node.walk();
|
||
let type_id = node.named_children(&mut c1).find(|c| c.kind() == "type_identifier");
|
||
let mut c2 = node.walk();
|
||
let name_id = node.named_children(&mut c2).find(|c| c.kind() == "identifier");
|
||
return match (type_id, name_id) {
|
||
(Some(t), Some(n)) => Some(format!("{}.{}", self.text(t), self.text(n))),
|
||
(Some(t), None) => Some(self.text(t).to_string()),
|
||
_ => None,
|
||
};
|
||
}
|
||
|
||
None
|
||
}
|
||
|
||
/// dartCalleeOfArgPart (dart.ts:100-116).
|
||
fn callee_of_arg_part(&self, arg_part: Node<'t>) -> Option<String> {
|
||
let prev = arg_part.prev_named_sibling()?;
|
||
if prev.kind() == "identifier" {
|
||
return Some(self.text(prev).to_string());
|
||
}
|
||
if prev.kind() == "selector" {
|
||
let mut pc = prev.walk();
|
||
let accessor = prev.named_children(&mut pc).find(|c| {
|
||
matches!(
|
||
c.kind(),
|
||
"unconditional_assignable_selector" | "conditional_assignable_selector"
|
||
)
|
||
});
|
||
let method_id = accessor.and_then(|a| {
|
||
let mut ac = a.walk();
|
||
let found = a.named_children(&mut ac).find(|c| c.kind() == "identifier");
|
||
found
|
||
});
|
||
if let Some(method_id) = method_id {
|
||
let accessor_prev = prev.prev_named_sibling();
|
||
if let Some(ap) = accessor_prev {
|
||
if ap.kind() == "identifier" {
|
||
return Some(format!("{}.{}", self.text(ap), self.text(method_id)));
|
||
}
|
||
}
|
||
return Some(self.text(method_id).to_string());
|
||
}
|
||
}
|
||
None
|
||
}
|
||
|
||
// --- extractStaticMemberRef — the dart branch (:4759-4767) ------------
|
||
|
||
fn extract_static_member_ref(&mut self, node: Node<'t>) {
|
||
if self.stack.is_empty() {
|
||
return;
|
||
}
|
||
let owner_row = self.top_row();
|
||
if node.kind() != "selector" {
|
||
return;
|
||
}
|
||
let mut cursor = node.walk();
|
||
if node.named_children(&mut cursor).any(|c| c.kind() == "argument_part") {
|
||
return;
|
||
}
|
||
let Some(prev) = node.prev_named_sibling() else { return };
|
||
if prev.kind() == "identifier" && cap_ident_re().is_match(self.text(prev)) {
|
||
let name = self.text(prev).to_string();
|
||
// NO callee-of-call skip — `ConfigT.load()` double-emits
|
||
// (references + calls). Position = the IDENTIFIER (receiver).
|
||
self.push_ref_at(owner_row, &name, "references", prev);
|
||
}
|
||
}
|
||
|
||
// --- extractDecoratorsFor (:4897-5024) — the sibling scan -------------
|
||
|
||
fn extract_decorators_for(&mut self, decl: Node<'t>, decorated_row: u32) {
|
||
// Scan 1: direct children (+ modifiers descent) — inert for dart
|
||
// (annotations are preceding siblings), ported for fidelity.
|
||
let mut cursor = decl.walk();
|
||
let kids: Vec<Node<'t>> = decl.named_children(&mut cursor).collect();
|
||
for child in kids {
|
||
self.consider_decorator(child, decorated_row);
|
||
if child.kind() == "modifiers" {
|
||
let mut mc = child.walk();
|
||
let inner: Vec<Node<'t>> = child.named_children(&mut mc).collect();
|
||
for m in inner {
|
||
self.consider_decorator(m, decorated_row);
|
||
}
|
||
}
|
||
}
|
||
// Scan 2: preceding siblings, backward, stop at the first
|
||
// non-annotation — stacked annotations emit in REVERSE source order.
|
||
if let Some(parent) = decl.parent() {
|
||
let decl_start = decl.start_byte();
|
||
let mut decl_idx: Option<usize> = None;
|
||
for i in 0..parent.named_child_count() {
|
||
if let Some(sib) = parent.named_child(i) {
|
||
if sib.start_byte() == decl_start {
|
||
decl_idx = Some(i);
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
if let Some(di) = decl_idx {
|
||
for j in (0..di).rev() {
|
||
let Some(sib) = parent.named_child(j) else { continue };
|
||
if !matches!(sib.kind(), "decorator" | "annotation" | "marker_annotation") {
|
||
break;
|
||
}
|
||
self.consider_decorator(sib, decorated_row);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
fn consider_decorator(&mut self, n: Node<'t>, decorated_row: u32) {
|
||
if !matches!(n.kind(), "decorator" | "annotation" | "marker_annotation" | "attribute") {
|
||
return;
|
||
}
|
||
let mut target: Option<Node<'t>> = None;
|
||
let mut cursor = n.walk();
|
||
let kids: Vec<Node<'t>> = n.named_children(&mut cursor).collect();
|
||
for child in kids {
|
||
if child.kind() == "call_expression" {
|
||
let fnn = child.child_by_field_name("function").or_else(|| child.named_child(0));
|
||
if let Some(f) = fnn {
|
||
target = Some(f);
|
||
}
|
||
if target.is_some() {
|
||
break;
|
||
}
|
||
}
|
||
if matches!(
|
||
child.kind(),
|
||
"identifier" | "member_expression" | "scoped_identifier" | "navigation_expression"
|
||
| "user_type" | "type_identifier"
|
||
) {
|
||
target = Some(child);
|
||
break;
|
||
}
|
||
}
|
||
let Some(target) = target else { return };
|
||
let mut name = self.text(target).to_string();
|
||
if let Some(lt) = name.find('<') {
|
||
if lt > 0 {
|
||
name.truncate(lt);
|
||
}
|
||
}
|
||
let last_dot = name.rfind('.').map(|i| i as i64).unwrap_or(-1);
|
||
let last_colons = name.rfind("::").map(|i| (i + 1) as i64).unwrap_or(-1);
|
||
let last = last_dot.max(last_colons);
|
||
if last >= 0 {
|
||
name = name[(last as usize + 1)..].to_string();
|
||
name = name.trim_start_matches([':', '.']).to_string();
|
||
}
|
||
let name = name.trim().to_string();
|
||
if name.is_empty() {
|
||
return;
|
||
}
|
||
self.push_ref_at(decorated_row, &name, "decorates", n);
|
||
}
|
||
|
||
// --- extractInheritance — the dart rows (:5368-5393, :5437-5459) ------
|
||
|
||
fn extract_inheritance(&mut self, node: Node<'t>, class_row: u32) {
|
||
let mut cursor = node.walk();
|
||
let kids: Vec<Node<'t>> = node.named_children(&mut cursor).collect();
|
||
for child in kids {
|
||
if child.kind() == "superclass" {
|
||
// extends type + `with` mixins (implements) — dart branch.
|
||
let mut cc = child.walk();
|
||
let targets: Vec<Node<'t>> = child.named_children(&mut cc).collect();
|
||
for t in targets {
|
||
if t.kind() == "mixins" {
|
||
let mut mc = t.walk();
|
||
let mixins: Vec<Node<'t>> = t.named_children(&mut mc).collect();
|
||
for m in mixins {
|
||
if m.kind() == "type_identifier" {
|
||
let name = self.text(m).to_string();
|
||
self.push_ref_at(class_row, &name, "implements", m);
|
||
}
|
||
}
|
||
} else if t.kind() == "type_identifier" {
|
||
let name = self.text(t).to_string();
|
||
self.push_ref_at(class_row, &name, "extends", t);
|
||
}
|
||
}
|
||
} else if child.kind() == "interfaces" {
|
||
// implements — one per named child, FULL child text.
|
||
let mut cc = child.walk();
|
||
let targets: Vec<Node<'t>> = child.named_children(&mut cc).collect();
|
||
for iface in targets {
|
||
let name = self.text(iface).to_string();
|
||
self.push_ref_at(class_row, &name, "implements", iface);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
// --- extractTypeAnnotations — the dart path (:5819-5833) --------------
|
||
|
||
fn extract_type_annotations(&mut self, node: Node<'t>, row: u32) {
|
||
let sig = if node.kind() == "method_signature" {
|
||
let mut cursor = node.walk();
|
||
let found = node.named_children(&mut cursor).find(|c| {
|
||
matches!(
|
||
c.kind(),
|
||
"function_signature" | "getter_signature" | "setter_signature"
|
||
| "constructor_signature" | "factory_constructor_signature"
|
||
)
|
||
});
|
||
found.unwrap_or(node) // operators fall back to the wrapper itself
|
||
} else {
|
||
node
|
||
};
|
||
self.type_refs_from_subtree(sig, row);
|
||
}
|
||
|
||
fn type_refs_from_subtree(&mut self, node: Node<'t>, from_row: u32) {
|
||
stack_guard!();
|
||
if node.kind() == "type_identifier" {
|
||
let name = self.text(node);
|
||
if !name.is_empty() && !is_builtin_type(name) {
|
||
let name = name.to_string();
|
||
self.push_ref_at(from_row, &name, "references", node);
|
||
}
|
||
return;
|
||
}
|
||
let mut cursor = node.walk();
|
||
let kids: Vec<Node<'t>> = node.named_children(&mut cursor).collect();
|
||
for c in kids {
|
||
self.type_refs_from_subtree(c, from_row);
|
||
}
|
||
}
|
||
|
||
// --- visitFunctionBody (:5129-5286) — dart rows -----------------------
|
||
|
||
fn visit_body(&mut self, node: Node<'t>) {
|
||
stack_guard!();
|
||
self.maybe_capture_fn_refs(node);
|
||
|
||
let kind = node.kind();
|
||
if kind == "new_expression" {
|
||
// INSTANTIATION branch fires first — extractBareCall's
|
||
// new_expression arm is dead. Children still recursed.
|
||
self.extract_instantiation(node);
|
||
} else if let Some(callee) = self.bare_call_name(node) {
|
||
// extractBareCall (:5159-5173) — ref at the MATCHED node.
|
||
if !self.stack.is_empty() {
|
||
let caller_row = self.top_row();
|
||
self.push_ref_at(caller_row, &callee, "calls", node);
|
||
}
|
||
}
|
||
|
||
self.extract_static_member_ref(node);
|
||
|
||
if kind == "function_signature" {
|
||
// Nested named functions (:5245) — extractFunction walks the
|
||
// nested body itself; the enclosing walker ALSO revisits the
|
||
// sibling function_body (double-walk pass 2b) via recursion.
|
||
self.extract_function(node);
|
||
return;
|
||
}
|
||
|
||
let mut cursor = node.walk();
|
||
let children: Vec<Node<'t>> = node.named_children(&mut cursor).collect();
|
||
for child in children {
|
||
self.visit_body(child);
|
||
}
|
||
}
|
||
|
||
// --- function-as-value capture (#756) — DART_SPEC ---------------------
|
||
|
||
fn maybe_capture_fn_refs(&mut self, node: Node<'t>) {
|
||
let (mode, field): (&str, &str) = match node.kind() {
|
||
"arguments" => ("args", ""),
|
||
"assignment_expression" => ("rhs", "right"),
|
||
"pair" => ("value", "value"),
|
||
"list_literal" => ("list", ""),
|
||
"static_final_declaration" => ("varinit", ""),
|
||
_ => return,
|
||
};
|
||
if self.stack.is_empty() {
|
||
return;
|
||
}
|
||
let from = self.top_row();
|
||
|
||
let mut values: Vec<Node<'t>> = Vec::new();
|
||
match mode {
|
||
"args" | "list" => {
|
||
let mut cursor = node.walk();
|
||
for c in node.named_children(&mut cursor) {
|
||
values.push(c);
|
||
}
|
||
}
|
||
"rhs" => {
|
||
if let Some(rhs) = node.child_by_field_name(field) {
|
||
let lhs = node
|
||
.child_by_field_name("left")
|
||
.or_else(|| node.child_by_field_name("lhs"))
|
||
.or_else(|| node.child_by_field_name("target"))
|
||
.or_else(|| {
|
||
if node.named_child_count() >= 2 {
|
||
node.named_child(0)
|
||
} else {
|
||
None
|
||
}
|
||
});
|
||
let lhs_text = lhs.map(|l| self.text(l)).unwrap_or("");
|
||
let lhs_last = util::lhs_last_name()
|
||
.captures(lhs_text)
|
||
.and_then(|c| c.get(1))
|
||
.map(|m| m.as_str());
|
||
if !(lhs_last.is_some() && lhs_last == Some(self.text(rhs).trim())) {
|
||
values.push(rhs);
|
||
}
|
||
}
|
||
}
|
||
"value" => {
|
||
let v = node.child_by_field_name(field).or_else(|| {
|
||
let count = node.named_child_count();
|
||
if count > 0 { node.named_child(count - 1) } else { None }
|
||
});
|
||
if let Some(v) = v {
|
||
values.push(v);
|
||
}
|
||
}
|
||
_ => {
|
||
// varinit, NO field (function-ref.ts:471-487): the last named
|
||
// child, requiring ≥2 named children; the name-field guard is
|
||
// inert (static_final_declaration has no name/pattern field).
|
||
let count = node.named_child_count();
|
||
if count >= 2 {
|
||
if let Some(v) = node.named_child(count - 1) {
|
||
values.push(v);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
for v in values {
|
||
self.normalize_fn_ref_value(v, from, 0);
|
||
}
|
||
}
|
||
|
||
/// normalizeValue with DART_SPEC's one layer (`argument` → fan out).
|
||
/// Named arguments are NOT captured (named_argument is not a layer).
|
||
fn normalize_fn_ref_value(&mut self, v: Node<'t>, from: u32, depth: u32) {
|
||
stack_guard!();
|
||
if depth > 4 {
|
||
return;
|
||
}
|
||
match v.kind() {
|
||
"identifier" => {
|
||
let name = self.text(v).to_string();
|
||
if name.is_empty() || is_stoplisted(&name) {
|
||
return;
|
||
}
|
||
let p = v.start_position();
|
||
self.fn_ref_cands.push(Cand {
|
||
from,
|
||
name,
|
||
line: p.row as u32 + 1,
|
||
column_byte: v.start_byte(),
|
||
row: p.row,
|
||
});
|
||
}
|
||
"argument" => {
|
||
let mut cursor = v.walk();
|
||
let kids: Vec<Node<'t>> = v.named_children(&mut cursor).collect();
|
||
for c in kids {
|
||
self.normalize_fn_ref_value(c, from, depth + 1);
|
||
}
|
||
}
|
||
_ => {}
|
||
}
|
||
}
|
||
|
||
fn scan_fn_ref_subtree(&mut self, node: Node<'t>, depth: u32) {
|
||
stack_guard!();
|
||
if depth > 12 {
|
||
return;
|
||
}
|
||
// Halt list: functionTypes (function_signature) + the lambda kinds —
|
||
// function_expression IS dart's lambda, so constant-initializer
|
||
// lambdas don't leak candidates.
|
||
if depth > 0
|
||
&& matches!(
|
||
node.kind(),
|
||
"function_signature" | "arrow_function" | "function_expression"
|
||
| "lambda_literal" | "lambda_expression"
|
||
)
|
||
{
|
||
return;
|
||
}
|
||
self.maybe_capture_fn_refs(node);
|
||
let mut cursor = node.walk();
|
||
let children: Vec<Node<'t>> = node.named_children(&mut cursor).collect();
|
||
for c in children {
|
||
self.scan_fn_ref_subtree(c, depth + 1);
|
||
}
|
||
}
|
||
|
||
fn flush_fn_ref_candidates(&mut self) {
|
||
let cands = std::mem::take(&mut self.fn_ref_cands);
|
||
if cands.is_empty() || util::is_generated_file(self.file_path) {
|
||
return;
|
||
}
|
||
let mut seen: HashSet<(String, String)> = HashSet::new();
|
||
for c in cands {
|
||
if !c.name.starts_with("this.")
|
||
&& !c.name.contains("::")
|
||
&& !self.defined_fn_names.contains(&c.name)
|
||
&& !self.imported_names.contains(&c.name)
|
||
{
|
||
continue;
|
||
}
|
||
if !seen.insert((self.node_ids[c.from as usize].clone(), c.name.clone())) {
|
||
continue;
|
||
}
|
||
let column = util::col16(self.src, &self.line_starts, c.row, c.column_byte);
|
||
let name_ref = self.arena.put(&c.name);
|
||
self.tables.push_ref(&RefRow {
|
||
from_idx: c.from,
|
||
kind: FUNCTION_REF_CODE,
|
||
line: c.line,
|
||
column,
|
||
reference_name: name_ref,
|
||
candidates: NONE_STR,
|
||
from_id_str: NONE_STR,
|
||
});
|
||
}
|
||
}
|
||
|
||
// --- value-reference edges (:398-931) ---------------------------------
|
||
|
||
fn flush_value_refs(&mut self, root: Node<'t>) {
|
||
let scopes = std::mem::take(&mut self.value_scopes);
|
||
let mut targets = std::mem::take(&mut self.fs_values);
|
||
let counts = std::mem::take(&mut self.fs_value_counts);
|
||
if std::env::var("CODEGRAPH_VALUE_REFS").as_deref() == Ok("0") {
|
||
return;
|
||
}
|
||
if targets.is_empty() || scopes.is_empty() || util::is_generated_file(self.file_path) {
|
||
return;
|
||
}
|
||
|
||
// Shadow prune — the dart declarator shapes (:844-850): each bumps
|
||
// its first identifier-typed named child. Uninitialized locals bump;
|
||
// assignment_expression is NOT a prune case.
|
||
let mut decl_counts: HashMap<&str, u32> = HashMap::new();
|
||
let mut dstack: Vec<Node> = vec![root];
|
||
let mut dvisited = 0usize;
|
||
while let Some(n) = dstack.pop() {
|
||
if dvisited >= MAX_VALUE_REF_NODES {
|
||
break;
|
||
}
|
||
dvisited += 1;
|
||
if matches!(
|
||
n.kind(),
|
||
"static_final_declaration" | "initialized_identifier" | "initialized_variable_definition"
|
||
) {
|
||
let mut cursor = n.walk();
|
||
let id = n.named_children(&mut cursor).find(|c| c.kind() == "identifier");
|
||
if let Some(id) = id {
|
||
let nm = self.text(id);
|
||
if targets.contains_key(nm) {
|
||
*decl_counts.entry(nm).or_insert(0) += 1;
|
||
}
|
||
}
|
||
}
|
||
for i in 0..n.named_child_count() {
|
||
if let Some(c) = n.named_child(i) {
|
||
dstack.push(c);
|
||
}
|
||
}
|
||
}
|
||
let shadowed: Vec<String> = decl_counts
|
||
.iter()
|
||
.filter(|(nm, c)| **c > counts.get(**nm).copied().unwrap_or(1))
|
||
.map(|(nm, _)| nm.to_string())
|
||
.collect();
|
||
for nm in shadowed {
|
||
targets.remove(&nm);
|
||
}
|
||
if targets.is_empty() {
|
||
return;
|
||
}
|
||
|
||
let refs_kind = edge_kind_index("references").unwrap();
|
||
for scope in &scopes {
|
||
let mut seen: HashSet<&str> = HashSet::new();
|
||
let mut stack: Vec<Node> = vec![scope.node];
|
||
// The Dart sibling-body pull (:883-892) is LIVE and load-bearing:
|
||
// reader scopes are SIGNATURE nodes; their reads live in the
|
||
// sibling function_body.
|
||
if let Some(sib) = scope.node.next_named_sibling() {
|
||
if matches!(sib.kind(), "function_body" | "block") {
|
||
stack.push(sib);
|
||
}
|
||
}
|
||
let mut visited = 0usize;
|
||
while let Some(n) = stack.pop() {
|
||
if visited >= MAX_VALUE_REF_NODES {
|
||
break;
|
||
}
|
||
visited += 1;
|
||
if matches!(n.kind(), "identifier" | "constant" | "name" | "simple_identifier") {
|
||
let ref_name = self.text(n);
|
||
if let Some(&target_row) = targets.get(ref_name) {
|
||
let target_id = self.node_ids[target_row as usize].as_str();
|
||
if target_id != self.node_ids[scope.row as usize]
|
||
&& ref_name != scope.name
|
||
&& !seen.contains(&target_id)
|
||
{
|
||
seen.insert(target_id);
|
||
let meta = self.arena.put(r#"{"valueRef":true}"#);
|
||
self.tables.push_edge(&EdgeRow {
|
||
source_idx: scope.row,
|
||
target_idx: target_row,
|
||
kind: refs_kind,
|
||
provenance: 0,
|
||
line: NONE,
|
||
column: NONE,
|
||
metadata_json: meta,
|
||
source_id_str: NONE_STR,
|
||
target_id_str: NONE_STR,
|
||
});
|
||
}
|
||
}
|
||
}
|
||
for i in 0..n.named_child_count() {
|
||
if let Some(c) = n.named_child(i) {
|
||
stack.push(c);
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
fn opt_str(arena: &mut Arena, s: Option<&str>) -> StrRef {
|
||
match s {
|
||
Some(s) => arena.put(s),
|
||
None => NONE_STR,
|
||
}
|
||
}
|