fjs deps

The command recursively discovers files named exactly module.f.js or module.f.mjs under the caller's directory and checks that each file can form a syntax AST. This initial selection prepares coverage checks for those modules. Under npm, the caller's original directory (INIT_CWD) selects the subtree. Discovery uses the same rules as the other source checks: hidden entries, node_modules and target are skipped.

This initial command uses the current compiler tokenizer and syntax AST parser to report their unsupported source forms. Parser extensions are a later step.

Source files are read as UTF-8 without importing or executing them. The check does not resolve imports or source bindings, apply FunctionalScript admission, or lower to FAST or EDAG. Its syntax AST can represent forms that FJS compilation still refuses, including braced for (const item of items) and for (let item of items) declaration loops. Recognizing that syntax does not select iteration semantics. Constructor expressions such as new Map(entries) and new Set(values) also form syntax ASTs, retaining their constructor, arguments and source token. The argument parentheses are required in this increment. Constructor support here defines no FunctionalScript constructor semantics or lowering; compilation still explicitly refuses construction at new. Each read or syntax failure is reported with its source location when known; the remaining files are still checked. A summary reports parsed, failed and total files. Any failed file or discovery error exits with code 1; a successful scan, including an empty source tree, exits with code 0.

Only the no-argument form is implemented. Dependency extraction and .data.js graph output are later tasks in the dependency graph command TODO.