71 Commits

Author SHA1 Message Date
0b80c1956f A let in .fln is always flat and a line indented under one is refused, the printer renames a let's name a later statement means otherwise or puts the let in a do: block, and a one-argument and/or prints as its argument 2026-09-25 22:23:37 +07:00
47cc213b42 Return types read off the body and the converter's latest fixtures live together 2026-09-25 22:14:32 +07:00
18581a452c = and != compare bools, a match over a bool takes true and false arms, a match over a dyn takes keyword arms, and where predicates joined with and are refused with the comma or vector form as the fix 2026-09-25 21:35:31 +07:00
ed7258c80f An abandoned check puts back everything it wrote into the environment, an else arm refused on its own terms is not blamed for the then arm's type, and a match's arms meet at the same join as an if's 2026-09-25 21:26:56 +07:00
0fc258c434 Merge branch 'master' into worktree-agent-a46233a32d1912c78 2026-09-25 21:11:17 +07:00
3001aadff3 .fln files open in flan-fln-mode, which evaluates, moves over, indents and edits their statements, clauses and top-level forms 2026-09-25 21:07:16 +07:00
f76d0d6e9f An if's arms and a _ function's exits meet at one join in any order, a return inside the last form counts where it is written, and a constant computed by a _ function is refused as with a written type 2026-09-25 21:02:26 +07:00
4d3688a519 Merge master into the .fln mode lane; a .fln arm sends its match whenever its value uses any name the pattern has, C-c C-s steps a .fln top-level form, and a comment block directly above a form is part of its text objects 2026-09-25 20:53:48 +07:00
111ee66a4b A match arm can be a number, char or string literal compared with =, over a number, a string or a dyn, with a _ arm required 2026-09-25 20:51:24 +07:00
df7078d586 A _ function's exits combine exactly as an if's arms do, a refused _ body or loop is collected with every other error, and the placeholder type never leaves the checker 2026-09-25 20:37:50 +07:00
8fdf8513fd A _ body's errors are reported with every other error in the file, a literal return takes the type of the other exits, and a recursive _ function that gives nothing returns () 2026-09-25 20:17:44 +07:00
ad40123b25 Master's error recovery and return types read off the body live together, and two ways out of an inferred body that cannot share a type are refused with both named 2026-09-25 19:58:31 +07:00
8c814b39c1 .fln files open in flan-fln-mode, which evaluates, moves over, indents and edits statements, clauses and top-level forms, and every Flan mode derives from flan-base-mode 2026-09-25 17:13:12 +07:00
ff88b9dad6 A defn whose return slot is _ (or a .fln fn with no arrow) takes its return type from its own body, recursion through such functions is refused by name, and a stale caller of one is told which line changed its type 2026-09-25 17:09:13 +07:00
4c336687ef Master's error recovery is merged, and the refusal memos are consulted only where a refusal is raised 2026-09-25 17:03:32 +07:00
4b64dc5f65 Code-carrying dev requests name their syntax and starting line and column, so a .fln snippet sent from the middle of a buffer reads with the buffer's own locations 2026-09-25 15:57:09 +07:00
25e303caf4 Master's indented reader is merged, and its x += v over a place with a call in it reads as update, evaluating the place once 2026-09-25 15:56:51 +07:00
074b2da6f3 The indented reader refuses a continuation line that is not deeper than its statement, takes one-line statements in arms, then/else and defer, typed lets and bare-name blocks, and names the shape it wanted where it used to say two values cannot sit side by side 2026-09-25 15:30:52 +07:00
8cc63ed9f6 A place in update, ++ and -- evaluates each of its subexpressions once, and (update place f args ...) stores (f old args ...) back into it 2026-09-25 15:26:27 +07:00
d7016f91c7 A .fln file is read by an indented reader that yields the paren reader's forms, every program entry point picks the reader by extension, and flan convert prints either syntax as the other 2026-09-25 15:04:32 +07:00
22d2a4cfb2 An indented surface beside s-expressions is specified as a second reader chosen by file extension 2026-09-25 14:21:51 +07:00