wehub-resource-sync
65 lines
2.4 KiB
C
65 lines
2.4 KiB
C
/* rust_cargo.h — Cargo.toml parser for the Rust LSP.
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*
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* Per RUST_LSP_FOLLOWUP §A3: we don't run Cargo or build, but we CAN
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* parse `Cargo.toml` and `[workspace] members` to learn:
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* - the crate name (`[package].name`)
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* - declared dependencies (`[dependencies]` + `[dev-dependencies]`)
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* - workspace members + their relative paths
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*
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* The pipeline uses this to map `other_member::foo` → that member's
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* module QN, and to mark calls into known external deps as "external,
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* not local" rather than fully unresolved.
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*
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* The parser is a tiny hand-written TOML subset: handles `[section]`
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* headers, `key = "value"`, `key = { path = "...", … }` (the relevant
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* subset for our needs), arrays `members = ["a", "b"]`. It IGNORES
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* everything it doesn't understand — that's safe because Cargo.toml
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* is much richer than what we use. */
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#ifndef CBM_LSP_RUST_CARGO_H
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#define CBM_LSP_RUST_CARGO_H
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#include "../arena.h"
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#include <stdbool.h>
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#define CBM_CARGO_MAX_DEPS 256
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#define CBM_CARGO_MAX_MEMBERS 64
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typedef struct {
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const char* name; /* declared dependency name */
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const char* path; /* path = "../foo" if local, else NULL */
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} CBMCargoDep;
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typedef struct {
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const char* member_name; /* directory name */
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const char* member_path; /* relative path inside workspace root */
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} CBMCargoMember;
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typedef struct CBMCargoManifest {
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const char* package_name; /* [package].name, NULL if missing */
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const char* package_version; /* [package].version, NULL if missing */
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bool is_workspace_root; /* [workspace] section seen */
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CBMCargoDep deps[CBM_CARGO_MAX_DEPS];
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int dep_count;
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CBMCargoMember members[CBM_CARGO_MAX_MEMBERS];
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int member_count;
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} CBMCargoManifest;
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/* Parse a Cargo.toml-formatted string. The output strings are
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* arena-allocated (so the caller doesn't need to keep `src` alive). */
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void cbm_cargo_parse(CBMArena* arena, const char* src, int src_len,
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CBMCargoManifest* out);
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/* Convenience: does a given path-prefix look like one of the listed
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* dependency names? Used by the resolver to recognise external crate
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* paths. */
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bool cbm_cargo_is_known_dep(const CBMCargoManifest* m, const char* head);
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/* Find a workspace member by crate name. Returns NULL if absent. */
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const CBMCargoMember* cbm_cargo_find_member(const CBMCargoManifest* m,
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const char* name);
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#endif /* CBM_LSP_RUST_CARGO_H */
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