Mercurial > vim

annotate README_VIM9.md @ 35809:8e5303bebacf

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added tag v9.1.0624 for changeset b6dc79a71f47fe4eb6fac36c2ebcdbbb41cb506b
author Christian Brabandt <cb@256bit.org>
date Fri, 26 Jul 2024 19:30:04 +0200
parents cc751d944b7e
children
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
31885
cc751d944b7e Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 25700
diff changeset
5 This is a new syntax for Vim script that was introduced with Vim 9.0.
cc751d944b7e Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 25700
diff changeset
6 It intends making Vim script faster and better.
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
7
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
8
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
9 # Why Vim9?
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 ## 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
12
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
13 The third item on the poll results of 2018, after popup windows and text
31885
cc751d944b7e Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 25700
diff changeset
14 properties, both of which have been implemented, is faster Vim script.
cc751d944b7e Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 25700
diff changeset
15 So how do we do that?
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
16
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
17 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
18 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
19 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
20 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
21 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
22
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
23 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
24 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
25 way:
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
26 * 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
27 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
28 * 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
29 * 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
30
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
31 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
32 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
33 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
34
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
35 ``` vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
36 let sum = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
37 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
38 let sum += i
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
39 endfor
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
40 ```
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 | 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
43 | --------| -------- |
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
44 | 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
45 | Python | 0.369598 |
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
46 | Lua | 0.078817 |
25402
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
47 | 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
48 | 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
49
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
50 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
51 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
52 interfaces.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
53
25402
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
54 LuaJit is much faster at Lua-only instructions. In practice the script would
31885
cc751d944b7e Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 25700
diff changeset
55 not do something useless counting, but change the text. For example,
25402
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
56 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
57
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
58 ``` vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
59 let totallen = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
60 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
61 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
62 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
63 endfor
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
64 ```
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 | 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
67 | --------| -------- |
25402
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
68 | Vim old | 0.578598 |
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
69 | Python | 0.152040 |
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
70 | Lua | 0.164917 |
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
71 | LuaJit | 0.128400 |
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
72 | Vim new | 0.079692 |
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
73
bdda48f01a68 Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 24024
diff changeset
74 [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
75
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
76 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
77 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
78 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
79
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
80 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
81 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
82 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
83 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
84 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
85 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
86 "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
87
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
88
22565
17c4178f26ea Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 21825
diff changeset
89 ## 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
90
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
91 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
92 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
93 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
94
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
95 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
96 * 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
97 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
98 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
99 available built-in.
21676
1b345fb68ae3 Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 19181
diff changeset
100 * 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
101 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
102 interfaces.
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
103 * 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
104 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
105 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
106
21825
0db0640e16e0 Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 21676
diff changeset
107 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
108 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
109 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
110 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
111 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
112
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
113 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
114 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
115 written in Python:
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
116 * 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
117 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
118 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
119 mismatch.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
120 * 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
121 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
122 * 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
123 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
124 * 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
125 * 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
126 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
127 * 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
128 is nicely separated.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
129 * 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
130 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
131 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
132
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 ## 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
135
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
136 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
137 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
138 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
139 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
140 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
141
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
142 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
143 "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
144
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
145 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
146 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
147 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
148
21676
1b345fb68ae3 Update runtime files.
Bram Moolenaar <Bram@vim.org>
parents: 19181
diff changeset
149 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
150 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
151
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
152 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
153 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
154 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
155 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
156 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
157 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
158 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
159 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
160 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
161
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
162 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
163 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
164 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
165 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
166 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
167 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
168 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
169 TypeScript, can work:
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
170
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 ``` vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
173 def MyFunction(arg: number): number
22958
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
174 var local = 1
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
175 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
176 const ADD = 88
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
177 while todo > 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
178 local += ADD
22958
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
179 todo -= 1
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
180 endwhile
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
181 return local
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
182 enddef
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
183 ```
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 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
186 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
187 disadvantages:
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
188 * 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
189 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
190 * 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
191 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
192 * 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
193
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
194 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
195 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
196 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
197
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
198 ``` vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
199 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
200
22958
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
201 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
202
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
203 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
204 ...
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 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
207 ...
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 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
211
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
212 ``` vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
213 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
214
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
215 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
216 ```
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 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
219 syntax.
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
220
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
221 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
222 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
223
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 ## 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
226
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
227 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
228
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
229 ``` vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
230 func VimOld()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
231 let sum = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
232 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
233 let sum += i
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
234 endfor
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
235 return sum
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
236 endfunc
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
237
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
238 func Python()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
239 py3 << END
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
240 sum = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
241 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
242 sum += i
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
243 END
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
244 return py3eval('sum')
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
245 endfunc
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
246
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
247 func Lua()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
248 lua << END
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
249 sum = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
250 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
251 sum = sum + i
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
252 end
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 return luaeval('sum')
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
255 endfunc
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
256
22958
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
257 def VimNew(): number
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
258 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
259 for i in range(1, 2999999)
22958
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
260 sum += i
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
261 endfor
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
262 return sum
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
263 enddef
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
264
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
265 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
266 echo VimOld()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
267 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
268
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
269 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
270 echo Python()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
271 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
272
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
273 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
274 echo Lua()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
275 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
276
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
277 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
278 echo VimNew()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
279 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
280 ```
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 ## 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
283
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
284 ``` vim
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
285 def VimNew(): number
22958
e7c125224b1a Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 22565
diff changeset
286 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
287 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
288 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
289 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
290 endfor
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
291 return totallen
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
292 enddef
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
293
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
294 func VimOld()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
295 let totallen = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
296 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
297 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
298 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
299 endfor
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
300 return totallen
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
301 endfunc
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
302
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
303 func Lua()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
304 lua << END
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
305 b = vim.buffer()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
306 totallen = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
307 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
308 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
309 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
310 end
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 return luaeval('totallen')
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
313 endfunc
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
314
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
315 func Python()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
316 py3 << END
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
317 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
318 totallen = 0
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
319 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
320 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
321 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
322 END
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
323 return py3eval('totallen')
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
324 endfunc
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
325
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
326 new
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
327 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
328 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
329 echo VimOld()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
330 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
331 bwipe!
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
332
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
333 new
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
334 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
335 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
336 echo Python()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
337 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
338 bwipe!
25700
d4faa2c5211b Update runtime files
Bram Moolenaar <Bram@vim.org>
parents: 25402
diff changeset
339
19181
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
340 new
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
341 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
342 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
343 echo Lua()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
344 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
345 bwipe!
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
346
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
347 new
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
348 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
349 let start = reltime()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
350 echo VimNew()
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
351 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
352 bwipe!
94eda51ba9ba patch 8.2.0149: maintaining a Vim9 branch separately is more work
Bram Moolenaar <Bram@vim.org>
parents:
diff changeset
353 ```