Mercurial > vim

annotate README_VIM9.md @ 31300:f97365e31b2b

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added tag v9.0.0983 for changeset f8d32833cf31410630e579fc8f72ebb217b4d1b0
author Bram Moolenaar <Bram@vim.org>
date Thu, 01 Dec 2022 20:30:04 +0100
parents d4faa2c5211b
children cc751d944b7e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
1 ![Vim Logo](https://github.com/vim/vim/blob/master/runtime/vimlogo.gif)
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
2
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
3 # What is Vim9?
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
4
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
5 This is an experimental side of [Vim](https://github.com/vim/vim).
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
6 It explores ways of making Vim script faster and better.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
7
21676
1b345fb68ae3 Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 19181
diff changeset
8 WARNING: The Vim9 script features are still under development, anything can
1b345fb68ae3 Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 19181
diff changeset
9 break!
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
10
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
11 # Why Vim9?
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
12
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
13 ## 1. FASTER VIM SCRIPT
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
14
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
15 The third item on the poll results of 2018, after popup windows and text
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
16 properties, is faster Vim script. So how do we do that?
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
17
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
18 I have been throwing some ideas around, and soon came to the conclusion
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
19 that the current way functions are called and executed, with
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
20 dictionaries for the arguments and local variables, is never going to be
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
21 very fast. We're lucky if we can make it twice as fast. The overhead
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
22 of a function call and executing every line is just too high.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
23
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
24 So what then? We can only make something fast by having a new way of
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
25 defining a function, with similar but different properties of the old
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
26 way:
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
27 * Arguments are only available by name, not through the a: dictionary or
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
28 the a:000 list.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
29 * Local variables are not available in an l: dictionary.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
30 * A few more things that slow us down, such as exception handling details.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
31
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
32 I Implemented a "proof of concept" and measured the time to run a simple
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
33 for loop with an addition (Justin used this example in his presentation,
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
34 full code is below):
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
35
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
36 ``` vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
37 let sum = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
38 for i in range(1, 2999999)
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
39 let sum += i
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
40 endfor
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
41 ```
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
42
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
43 | how | time in sec |
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
44 | --------| -------- |
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
45 | Vim old | 5.018541 |
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
46 | Python | 0.369598 |
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
47 | Lua | 0.078817 |
25402
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
48 | LuaJit | 0.004245 |
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
49 | Vim new | 0.073595 |
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
50
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
51 That looks very promising! It's just one example, but it shows how much
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
52 we can gain, and also that Vim script can be faster than builtin
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
53 interfaces.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
54
25402
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
55 LuaJit is much faster at Lua-only instructions. In practice the script would
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
56 not do something useless as counting but change the text. For example,
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
57 reindent all the lines:
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
58
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
59 ``` vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
60 let totallen = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
61 for i in range(1, 100000)
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
62 call setline(i, ' ' .. getline(i))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
63 let totallen += len(getline(i))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
64 endfor
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
65 ```
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
66
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
67 | how | time in sec |
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
68 | --------| -------- |
25402
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
69 | Vim old | 0.578598 |
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
70 | Python | 0.152040 |
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
71 | Lua | 0.164917 |
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
72 | LuaJit | 0.128400 |
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
73 | Vim new | 0.079692 |
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
74
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
75 [These times were measured on a different system by Dominique Pelle]
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
76
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
77 The differences are smaller, but Vim 9 script is clearly the fastest.
25402
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
78 Using LuaJIT is only a little bit faster than plain Lua here, clearly the call
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
79 back to the Vim code is costly.
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
80
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
81 How does Vim9 script work? The function is first compiled into a sequence of
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
82 instructions. Each instruction has one or two parameters and a stack is
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
83 used to store intermediate results. Local variables are also on the
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
84 stack, space is reserved during compilation. This is a fairly normal
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
85 way of compilation into an intermediate format, specialized for Vim,
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
86 e.g. each stack item is a typeval_T. And one of the instructions is
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
87 "execute Ex command", for commands that are not compiled.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
88
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
89
22565
17c4178f26ea Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 21825
diff changeset
90 ## 2. DEPRIORITIZE INTERFACES
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
91
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
92 Attempts have been made to implement functionality with built-in script
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
93 languages such as Python, Perl, Lua, Tcl and Ruby. This never gained much
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
94 foothold, for various reasons.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
95
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
96 Instead of using script language support in Vim:
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
97 * Encourage implementing external tools in any language and communicate
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
98 with them. The job and channel support already makes this possible.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
99 Really any language can be used, also Java and Go, which are not
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
100 available built-in.
21676
1b345fb68ae3 Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 19181
diff changeset
101 * No priority for the built-in language interfaces. They will have to be kept
1b345fb68ae3 Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 19181
diff changeset
102 for backwards compatibility, but many users won't need a Vim build with these
1b345fb68ae3 Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 19181
diff changeset
103 interfaces.
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
104 * Improve the Vim script language, it is used to communicate with the external
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
105 tool and implements the Vim side of the interface. Also, it can be used when
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
106 an external tool is undesired.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
107
21825
0db0640e16e0 Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 21676
diff changeset
108 Altogether this creates a clear situation: Vim with the +eval feature
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
109 will be sufficient for most plugins, while some plugins require
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
110 installing a tool that can be written in any language. No confusion
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
111 about having Vim but the plugin not working because some specific
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
112 language is missing. This is a good long term goal.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
113
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
114 Rationale: Why is it better to run a tool separately from Vim than using a
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
115 built-in interface and interpreter? Take for example something that is
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
116 written in Python:
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
117 * The built-in interface uses the embedded python interpreter. This is less
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
118 well maintained than the python command. Building Vim with it requires
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
119 installing developer packages. If loaded dynamically there can be a version
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
120 mismatch.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
121 * When running the tool externally the standard python command can be used,
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
122 which is quite often available by default or can be easily installed.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
123 * The built-in interface has an API that is unique for Vim with Python. This is
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
124 an extra API to learn.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
125 * A .py file can be compiled into a .pyc file and execute much faster.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
126 * Inside Vim multi-threading can cause problems, since the Vim core is single
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
127 threaded. In an external tool there are no such problems.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
128 * The Vim part is written in .vim files, the Python part is in .py files, this
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
129 is nicely separated.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
130 * Disadvantage: An interface needs to be made between Vim and Python.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
131 JSON is available for this, and it's fairly easy to use. But it still
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
132 requires implementing asynchronous communication.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
133
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
134
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
135 ## 3. BETTER VIM SCRIPT
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
136
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
137 To make Vim faster a new way of defining a function needs to be added.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
138 While we are doing that, since the lines in this function won't be fully
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
139 backwards compatible anyway, we can also make Vim script easier to use.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
140 In other words: "less weird". Making it work more like modern
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
141 programming languages will help. No surprises.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
142
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
143 A good example is how in a function the arguments are prefixed with
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
144 "a:". No other language I know does that, so let's drop it.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
145
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
146 Taking this one step further is also dropping "s:" for script-local variables;
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
147 everything at the script level is script-local by default. Since this is not
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
148 backwards compatible it requires a new script style: Vim9 script!
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
149
21676
1b345fb68ae3 Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 19181
diff changeset
150 To avoid having more variations, the syntax inside a compiled function is the
1b345fb68ae3 Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 19181
diff changeset
151 same as in Vim9 script. Thus you have legacy syntax and Vim9 syntax.
1b345fb68ae3 Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 19181
diff changeset
152
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
153 It should be possible to convert code from other languages to Vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
154 script. We can add functionality to make this easier. This still needs
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
155 to be discussed, but we can consider adding type checking and a simple
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
156 form of classes. If you look at JavaScript for example, it has gone
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
157 through these stages over time, adding real class support and now
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
158 TypeScript adds type checking. But we'll have to see how much of that
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
159 we actually want to include in Vim script. Ideally a conversion tool
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
160 can take Python, JavaScript or TypeScript code and convert it to Vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
161 script, with only some things that cannot be converted.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
162
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
163 Vim script won't work the same as any specific language, but we can use
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
164 mechanisms that are commonly known, ideally with the same syntax. One
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
165 thing I have been thinking of is assignments without ":let". I often
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
166 make that mistake (after writing JavaScript especially). I think it is
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
167 possible, if we make local variables shadow commands. That should be OK,
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
168 if you shadow a command you want to use, just rename the variable.
22958
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
169 Using "var" and "const" to declare a variable, like in JavaScript and
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
170 TypeScript, can work:
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
171
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
172
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
173 ``` vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
174 def MyFunction(arg: number): number
22958
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
175 var local = 1
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
176 var todo = arg
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
177 const ADD = 88
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
178 while todo > 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
179 local += ADD
22958
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
180 todo -= 1
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
181 endwhile
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
182 return local
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
183 enddef
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
184 ```
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
185
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
186 The similarity with JavaScript/TypeScript can also be used for dependencies
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
187 between files. Vim currently uses the `:source` command, which has several
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
188 disadvantages:
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
189 * In the sourced script, is not clear what it provides. By default all
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
190 functions are global and can be used elsewhere.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
191 * In a script that sources other scripts, it is not clear what function comes
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
192 from what sourced script. Finding the implementation is a hassle.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
193 * Prevention of loading the whole script twice must be manually implemented.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
194
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
195 We can use the `:import` and `:export` commands from the JavaScript standard to
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
196 make this much better. For example, in script "myfunction.vim" define a
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
197 function and export it:
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
198
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
199 ``` vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
200 vim9script " Vim9 script syntax used here
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
201
22958
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
202 var local = 'local variable is not exported, script-local'
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
203
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
204 export def MyFunction() " exported function
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
205 ...
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
206
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
207 def LocalFunction() " not exported, script-local
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
208 ...
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
209 ```
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
210
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
211 And in another script import the function:
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
212
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
213 ``` vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
214 vim9script " Vim9 script syntax used here
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
215
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
216 import MyFunction from 'myfunction.vim'
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
217 ```
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
218
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
219 This looks like JavaScript/TypeScript, thus many users will understand the
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
220 syntax.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
221
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
222 These are ideas, this will take time to design, discuss and implement.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
223 Eventually this will lead to Vim 9!
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
224
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
225
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
226 ## Code for sum time measurements
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
227
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
228 Vim was build with -O2.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
229
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
230 ``` vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
231 func VimOld()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
232 let sum = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
233 for i in range(1, 2999999)
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
234 let sum += i
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
235 endfor
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
236 return sum
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
237 endfunc
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
238
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
239 func Python()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
240 py3 << END
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
241 sum = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
242 for i in range(1, 3000000):
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
243 sum += i
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
244 END
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
245 return py3eval('sum')
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
246 endfunc
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
247
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
248 func Lua()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
249 lua << END
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
250 sum = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
251 for i = 1, 2999999 do
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
252 sum = sum + i
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
253 end
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
254 END
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
255 return luaeval('sum')
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
256 endfunc
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
257
22958
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
258 def VimNew(): number
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
259 var sum = 0
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
260 for i in range(1, 2999999)
22958
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
261 sum += i
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
262 endfor
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
263 return sum
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
264 enddef
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
265
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
266 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
267 echo VimOld()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
268 echo 'Vim old: ' .. reltimestr(reltime(start))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
269
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
270 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
271 echo Python()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
272 echo 'Python: ' .. reltimestr(reltime(start))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
273
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
274 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
275 echo Lua()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
276 echo 'Lua: ' .. reltimestr(reltime(start))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
277
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
278 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
279 echo VimNew()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
280 echo 'Vim new: ' .. reltimestr(reltime(start))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
281 ```
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
282
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
283 ## Code for indent time measurements
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
284
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
285 ``` vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
286 def VimNew(): number
22958
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
287 var totallen = 0
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
288 for i in range(1, 100000)
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
289 setline(i, ' ' .. getline(i))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
290 totallen += len(getline(i))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
291 endfor
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
292 return totallen
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
293 enddef
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
294
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
295 func VimOld()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
296 let totallen = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
297 for i in range(1, 100000)
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
298 call setline(i, ' ' .. getline(i))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
299 let totallen += len(getline(i))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
300 endfor
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
301 return totallen
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
302 endfunc
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
303
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
304 func Lua()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
305 lua << END
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
306 b = vim.buffer()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
307 totallen = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
308 for i = 1, 100000 do
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
309 b[i] = " " .. b[i]
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
310 totallen = totallen + string.len(b[i])
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
311 end
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
312 END
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
313 return luaeval('totallen')
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
314 endfunc
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
315
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
316 func Python()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
317 py3 << END
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
318 cb = vim.current.buffer
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
319 totallen = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
320 for i in range(0, 100000):
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
321 cb[i] = ' ' + cb[i]
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
322 totallen += len(cb[i])
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
323 END
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
324 return py3eval('totallen')
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
325 endfunc
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
326
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
327 new
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
328 call setline(1, range(100000))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
329 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
330 echo VimOld()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
331 echo 'Vim old: ' .. reltimestr(reltime(start))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
332 bwipe!
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
333
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
334 new
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
335 call setline(1, range(100000))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
336 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
337 echo Python()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
338 echo 'Python: ' .. reltimestr(reltime(start))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
339 bwipe!
25700
d4faa2c5211b Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 25402
diff changeset
340
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
341 new
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
342 call setline(1, range(100000))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
343 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
344 echo Lua()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
345 echo 'Lua: ' .. reltimestr(reltime(start))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
346 bwipe!
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
347
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
348 new
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
349 call setline(1, range(100000))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
350 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
351 echo VimNew()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
352 echo 'Vim new: ' .. reltimestr(reltime(start))
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
353 bwipe!
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
354 ```