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compiler: conditional guard for platform specific #includes directives in _xxx.v files.

This commit is contained in:
Delyan Angelov 2019-08-04 21:39:43 +03:00 committed by Alexander Medvednikov
parent 59a4c923c4
commit 0379b9cc69
2 changed files with 35 additions and 1 deletions

View File

@ -164,6 +164,11 @@ fn (p mut Parser) chash() {
}
if hash.starts_with('include') {
if p.first_pass() && !is_sig {
if p.file_pcguard.len != 0 {
//println('p: $p.file_platform $p.file_pcguard')
p.cgen.includes << '$p.file_pcguard\n#$hash\n#endif'
return
}
p.cgen.includes << '#$hash'
return
}

View File

@ -36,6 +36,10 @@ mut:
struct Parser {
file_path string // "/home/user/hello.v"
file_name string // "hello.v"
file_platform string // ".v", "_win.v", "_nix.v", "_mac.v", "_lin.v" ...
file_pcguard string // When p.file_pcguard != '', it contains a
// C ifdef guard clause that must be put before
// the #include directives in the parsed .v file
mut:
v *V
scanner *Scanner
@ -89,13 +93,38 @@ const (
MaxModuleDepth = 4
)
fn platform_postfix_to_ifdefguard(name string) string {
switch name {
case '.v': return '' // no guard needed
case '_win.v': return '#ifdef _WIN32'
case '_nix.v': return '#ifndef _WIN32'
case '_lin.v': return '#ifdef __linux__'
case '_mac.v': return '#ifdef __APPLE__'
}
panic('bad platform_postfix "$name"')
return ''
}
fn (v mut V) new_parser(path string, pass Pass) Parser {
v.log('new_parser("$path")')
v.cgen.pass = pass
mut path_pcguard := ''
mut path_platform := '.v'
for path_ending in ['_lin.v', '_mac.v', '_win.v', '_nix.v'] {
if path.ends_with(path_ending) {
path_platform = path_ending
path_pcguard = platform_postfix_to_ifdefguard( path_ending )
break
}
}
mut p := Parser {
v: v
file_path: path
file_name: path.all_after('/')
file_platform: path_platform
file_pcguard: path_pcguard
scanner: new_scanner(path)
table: v.table
import_table: new_file_import_table(path)