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tools: implement cgen tag for Markdown examples in v check-md (#13332)

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Delyan Angelov 2022-01-31 22:51:04 +02:00 committed by GitHub
parent b34860e39b
commit db50e79d26
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5 changed files with 86 additions and 51 deletions
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58
cmd/tools/vcheck-md.v
View File

@ -21,6 +21,7 @@ const (
hide_warnings = '-hide-warnings' in os.args || '-w' in os.args
show_progress = os.getenv('GITHUB_JOB') == '' && '-silent' !in os.args
non_option_args = cmdline.only_non_options(os.args[2..])
is_verbose = os.getenv('VERBOSE') != ''
)
struct CheckResult {
@ -75,7 +76,7 @@ fn main() {
res += mdfile.check()
}
if res.errors == 0 && show_progress {
term.clear_previous_line()
clear_previous_line()
}
if res.warnings > 0 || res.errors > 0 || res.oks > 0 {
println('\nWarnings: $res.warnings | Errors: $res.errors | OKs: $res.oks')
@ -131,9 +132,7 @@ fn eline(file_path string, lnumber int, column int, message string) string {
return btext('$file_path:${lnumber + 1}:${column + 1}:') + btext(rtext(' error: $message'))
}
const (
default_command = 'compile'
)
const default_command = 'compile'
struct VCodeExample {
mut:
@ -160,7 +159,7 @@ mut:
fn (mut f MDFile) progress(message string) {
if show_progress {
term.clear_previous_line()
clear_previous_line()
println('File: ${f.path:-30s}, Lines: ${f.lines.len:5}, $message')
}
}
@ -394,6 +393,7 @@ fn (mut f MDFile) debug() {
}
fn cmdexecute(cmd string) int {
verbose_println(cmd)
res := os.execute(cmd)
if res.exit_code < 0 {
return 1
@ -405,6 +405,7 @@ fn cmdexecute(cmd string) int {
}
fn silent_cmdexecute(cmd string) int {
verbose_println(cmd)
res := os.execute(cmd)
return res.exit_code
}
@ -426,6 +427,7 @@ fn (mut f MDFile) check_examples() CheckResult {
}
fname := os.base(f.path).replace('.md', '_md')
uid := rand.ulid()
cfile := os.join_path(os.temp_dir(), '${uid}.c')
vfile := os.join_path(os.temp_dir(), 'check_${fname}_example_${e.sline}__${e.eline}__${uid}.v')
mut should_cleanup_vfile := true
// eprintln('>>> checking example $vfile ...')
@ -438,8 +440,7 @@ fn (mut f MDFile) check_examples() CheckResult {
fmt_res := if nofmt { 0 } else { get_fmt_exit_code(vfile, vexe) }
match command {
'compile' {
res := cmdexecute('${os.quoted_path(vexe)} -w -Wfatal-errors -o x.c ${os.quoted_path(vfile)}')
os.rm('x.c') or {}
res := cmdexecute('${os.quoted_path(vexe)} -w -Wfatal-errors ${os.quoted_path(vfile)}')
if res != 0 || fmt_res != 0 {
if res != 0 {
eprintln(eline(f.path, e.sline, 0, 'example failed to compile'))
@ -454,9 +455,26 @@ fn (mut f MDFile) check_examples() CheckResult {
}
oks++
}
'cgen' {
res := cmdexecute('${os.quoted_path(vexe)} -w -Wfatal-errors -o ${os.quoted_path(cfile)} ${os.quoted_path(vfile)}')
os.rm(cfile) or {}
if res != 0 || fmt_res != 0 {
if res != 0 {
eprintln(eline(f.path, e.sline, 0, 'example failed to generate C code'))
}
if fmt_res != 0 {
eprintln(eline(f.path, e.sline, 0, 'example is not formatted'))
}
eprintln(vcontent)
should_cleanup_vfile = false
errors++
continue
}
oks++
}
'globals' {
res := cmdexecute('${os.quoted_path(vexe)} -w -Wfatal-errors -enable-globals -o x.c ${os.quoted_path(vfile)}')
os.rm('x.c') or {}
res := cmdexecute('${os.quoted_path(vexe)} -w -Wfatal-errors -enable-globals -o ${os.quoted_path(cfile)} ${os.quoted_path(vfile)}')
os.rm(cfile) or {}
if res != 0 || fmt_res != 0 {
if res != 0 {
eprintln(eline(f.path, e.sline, 0, '`example failed to compile with -enable-globals'))
@ -472,7 +490,8 @@ fn (mut f MDFile) check_examples() CheckResult {
oks++
}
'live' {
res := cmdexecute('${os.quoted_path(vexe)} -w -Wfatal-errors -live -o x.c ${os.quoted_path(vfile)}')
res := cmdexecute('${os.quoted_path(vexe)} -w -Wfatal-errors -live -o ${os.quoted_path(cfile)} ${os.quoted_path(vfile)}')
os.rm(cfile) or {}
if res != 0 || fmt_res != 0 {
if res != 0 {
eprintln(eline(f.path, e.sline, 0, 'example failed to compile with -live'))
@ -488,8 +507,8 @@ fn (mut f MDFile) check_examples() CheckResult {
oks++
}
'failcompile' {
res := silent_cmdexecute('${os.quoted_path(vexe)} -w -Wfatal-errors -o x.c ${os.quoted_path(vfile)}')
os.rm('x.c') or {}
res := silent_cmdexecute('${os.quoted_path(vexe)} -w -Wfatal-errors -o ${os.quoted_path(cfile)} ${os.quoted_path(vfile)}')
os.rm(cfile) or {}
if res == 0 || fmt_res != 0 {
if res == 0 {
eprintln(eline(f.path, e.sline, 0, '`failcompile` example compiled'))
@ -533,7 +552,7 @@ fn (mut f MDFile) check_examples() CheckResult {
}
'nofmt' {}
else {
eprintln(eline(f.path, e.sline, 0, 'unrecognized command: "$command", use one of: wip/ignore/compile/failcompile/oksyntax/badsyntax'))
eprintln(eline(f.path, e.sline, 0, 'unrecognized command: "$command", use one of: wip/ignore/compile/cgen/failcompile/oksyntax/badsyntax/nofmt'))
should_cleanup_vfile = false
errors++
}
@ -548,3 +567,16 @@ fn (mut f MDFile) check_examples() CheckResult {
oks: oks
}
}
fn verbose_println(message string) {
if is_verbose {
println(message)
}
}
fn clear_previous_line() {
if is_verbose {
return
}
term.clear_previous_line()
}

1
cmd/v/help/check-md.txt
View File

@ -13,6 +13,7 @@ Flags:
NB: There are several special keywords, which you can put after the code fences for v.
These are:
compile - Default, can be omitted. The example will be compiled and formatting is verified.
cgen - The example produces C code, which may not be compilable (when external libs are not installed). Formatting is verified.
live - Compile hot reload examples with the ´-live´ flag set and verify formatting.
ignore - Ignore the example, useful for examples that just use the syntax highlighting
failcompile - Known failing compilation. Useful for examples demonstrating compiler errors.

74
doc/docs.md
View File

@ -163,7 +163,7 @@ For more details and troubleshooting, please visit the [vab GitHub repository](h
<!--
NB: there are several special keywords, which you can put after the code fences for v:
compile, live, ignore, failcompile, oksyntax, badsyntax, wip, nofmt
compile, cgen, live, ignore, failcompile, oksyntax, badsyntax, wip, nofmt
For more details, do: `v check-md`
-->
@ -1393,7 +1393,7 @@ println(s)
You can check the current type of a sum type using `is` and its negated form `!is`.
You can do it either in an `if`:
```v
```v cgen
struct Abc {
val string
}
@ -5102,40 +5102,42 @@ For all supported options check the latest help:
#### `$if` condition
```v
// Support for multiple conditions in one branch
$if ios || android {
println('Running on a mobile device!')
}
$if linux && x64 {
println('64-bit Linux.')
}
// Usage as expression
os := $if windows { 'Windows' } $else { 'UNIX' }
println('Using $os')
// $else-$if branches
$if tinyc {
println('tinyc')
} $else $if clang {
println('clang')
} $else $if gcc {
println('gcc')
} $else {
println('different compiler')
}
$if test {
println('testing')
}
// v -cg ...
$if debug {
println('debugging')
}
// v -prod ...
$if prod {
println('production build')
}
// v -d option ...
$if option ? {
println('custom option')
fn main() {
// Support for multiple conditions in one branch
$if ios || android {
println('Running on a mobile device!')
}
$if linux && x64 {
println('64-bit Linux.')
}
// Usage as expression
os := $if windows { 'Windows' } $else { 'UNIX' }
println('Using $os')
// $else-$if branches
$if tinyc {
println('tinyc')
} $else $if clang {
println('clang')
} $else $if gcc {
println('gcc')
} $else {
println('different compiler')
}
$if test {
println('testing')
}
// v -cg ...
$if debug {
println('debugging')
}
// v -prod ...
$if prod {
println('production build')
}
// v -d option ...
$if option ? {
println('custom option')
}
}
```

2
vlib/gg/README.md
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@ -7,7 +7,7 @@ user's keyboard/mouse input.
## Example:
```v
```v cgen
module main
import gg

2
vlib/sokol/README.md
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@ -11,7 +11,7 @@ Each `.h` file in the sokol source code is well-documented as can be seen here:
## Example from `@VROOTDIR/examples/sokol/sounds/simple_sin_tones.v`:
```v
```v cgen
import time
import math
import sokol.audio