8 commits

Author	SHA1	Message	Date
Naïm Favier	062e4fcdde	JSON: print paths as strings without copying them to the store ... Makes `printValueAsJSON` not copy paths to the store for `nix eval --json`, `nix-instantiate --eval --json` and `nix-env --json`. Fixes https://github.com/NixOS/nix/issues/5612	2022-08-22 15:01:35 +02:00
pennae	6526d1676b	replace most Pos objects/ptrs with indexes into a position table ... Pos objects are somewhat wasteful as they duplicate the origin file name and input type for each object. on files that produce more than one Pos when parsed this a sizeable waste of memory (one pointer per Pos). the same goes for ptr<Pos> on 64 bit machines: parsing enough source to require 8 bytes to locate a position would need at least 8GB of input and 64GB of expression memory. it's not likely that we'll hit that any time soon, so we can use a uint32_t index to locate positions instead.	2022-04-21 21:46:06 +02:00
Shay Bergmann	ba81e871b2	toJSON: report error position for fancier output ... Given flake: ```nix { description = "nix json error provenance"; inputs = {}; outputs = { self }: { jsonFunction = _: "function"; json = builtins.toJSON (_: "function"); }; } ``` - Before: ```console ❯ nix eval --json .#jsonFunction error: cannot convert a function to JSON ``` - After: ```console ❯ nix eval --json .#jsonFunction error: cannot convert a function to JSON at /nix/store/b7imf1c2j4jnkg3ys7fsfbj02s5j0i4f-source/testflake/flake.nix:4:5: 3| outputs = { self }: { 4| jsonFunction = _: "function"; | ^ 5| json = builtins.toJSON (_: "function"); ```	2021-10-25 21:17:52 +00:00
Eelco Dolstra	c0a7b84748	nix path-info: Add --json flag ... Also, factor out JSON generation from value-to-json.{cc,hh}, and support producing indented JSON.	2016-08-29 17:29:24 +02:00
Eelco Dolstra	7a173a7be1	JSONObject: Support floats and booleans	2016-02-19 14:24:04 +01:00
Eelco Dolstra	d61853430a	Support control characters in JSON output	2014-09-30 00:41:18 +02:00
Eelco Dolstra	5fea98111b	Refactor JSON output	2013-11-19 00:33:06 +01:00
Eelco Dolstra	77c13cdf56	Add a toJSON primop	2013-11-19 00:04:11 +01:00