add do statement
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2 changed files with 48 additions and 19 deletions
46
README.md
46
README.md
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@ -104,14 +104,14 @@ Add `nix2lua` as input to your `flake.nix`
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`pipe expr`
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> Joins expressions with a '.' (dot) separator.
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> If list of expressions contains a string it will
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> convert to the raw.
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> Joins expressions with a '.' (dot) separator. If list of expressions contains
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> a string it will convert to the raw.
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>
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> ```nix
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> toLua (pipe ["vim" "opt" "line"]);
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> # vim.opt.line
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> ```
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>
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> ```nix
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> toLua (pipe ["luasnip" (call0 "setup")]);
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> # luasnip.setup()
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@ -128,8 +128,8 @@ Add `nix2lua` as input to your `flake.nix`
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`spaceBetween expr`
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> Join expressions with a space separator. You can use it to separate
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> all expressions in the Lua configuration.
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> Join expressions with a space separator. You can use it to separate all
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> expressions in the Lua configuration.
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>
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> This is alias for `join " "`
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>
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@ -144,14 +144,15 @@ Add `nix2lua` as input to your `flake.nix`
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`call fnName args`
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> Util to call a Lua function with arguments.
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>
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> If `args` is list that each list item render as function argument.
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> Otherwise, it will be rendered as first argument.
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>
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> If `args` is list that each list item render as function argument. Otherwise,
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> it will be rendered as first argument.
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>
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> ```nix
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> toLua (call "setup" [ "foo" "bar" ]);
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> # setup("foo", "bar")
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> ```
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>
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> ```nix
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> toLua (call "setup" { foo = "bar" });
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> # or: toLua (call "setup" [{ foo = "bar" }]);
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@ -171,9 +172,8 @@ Add `nix2lua` as input to your `flake.nix`
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`call1 fnName arg`
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> Call a Lua function with one argument.
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> This is useful when a Lua function has only one argument of type list,
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> and we want to avoid using an inner list.
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> Call a Lua function with one argument. This is useful when a Lua function has
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> only one argument of type list, and we want to avoid using an inner list.
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>
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> This is alias for `call fnName [arg]`.
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>
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@ -187,6 +187,7 @@ Add `nix2lua` as input to your `flake.nix`
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> Call a require function to import module with `name`.
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>
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> This is alias for `call "require" name`.
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>
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> ```nix
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> toLua (require "luasnip")
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> # require("luasnip")
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@ -233,6 +234,7 @@ Add `nix2lua` as input to your `flake.nix`
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> ```
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>
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> Useful aliases:
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>
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> ```
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> lset = l: r: local (set l r);
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> ```
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@ -247,6 +249,7 @@ Add `nix2lua` as input to your `flake.nix`
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> ```
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>
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> Useful aliases:
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>
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> ```
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> func0 = fnName: func fnName [ ];
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>
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@ -256,8 +259,8 @@ Add `nix2lua` as input to your `flake.nix`
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`lambda params body`
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> Define a lambda function with specific parameters and body.
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> Useful to use Lua function inline.
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> Define a lambda function with specific parameters and body. Useful to use Lua
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> function inline.
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>
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> ```nix
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> toLua (call "setup" {
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@ -267,6 +270,7 @@ Add `nix2lua` as input to your `flake.nix`
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> ```
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>
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> Useful aliases:
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>
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> ```
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> lambda0 = lambda [ ];
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> ```
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@ -295,6 +299,7 @@ Add `nix2lua` as input to your `flake.nix`
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> ```
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>
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> Useful aliases:
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>
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> ```
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> return_void = return null;
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> ```
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@ -317,6 +322,21 @@ Add `nix2lua` as input to your `flake.nix`
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> # if (10 == 10) print("yes") end
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> ```
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`do body`
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> Limit scope of the variables
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>
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> ```nix
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> toLua (do [(requireTo "foo" "foo")])
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> # do local set foo = require("foo") end
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> ```
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>
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> Aliases:
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>
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> ```
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> scope = do
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> ```
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# License
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GNU General Public License v3.0 or later
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21
lib.nix
21
lib.nix
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@ -172,6 +172,8 @@ let
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]));
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if' = condition: trueBody: ifelse condition trueBody [ ];
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do = body: spaceBetween [ kw_do ] ++ body ++ [ kw_end ];
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isLuaNil = expr: getType expr == "nil";
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LuaNil = { _type = "nil"; };
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@ -230,10 +232,19 @@ in
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inherit toLua;
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inherit LuaNil;
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inherit raw join concat spaceBetween;
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inherit raw;
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var = raw;
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vars = map raw;
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inherit join concat spaceBetween;
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inherit pipe pipe1;
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inherit namedField local;
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inherit local;
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inherit namedField;
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nf = namedField;
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inherit ifelse if';
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inherit set;
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lset = l: r: local (set l r);
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@ -251,8 +262,6 @@ in
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inherit return return_void;
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# useful aliases
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var = raw;
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vars = map raw;
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nf = namedField;
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inherit do;
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scope = do;
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}
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