build/meson: rename parserless builds to -Dparser

the original is -Ddisable_parser, invert that to make it less confusing

Author: mochaaP

meson.build

@@ -122,12 +122,6 @@ if get_option('debug')
     language: 'c',
   )
 endif
-if get_option('disable_parser')
-  add_project_arguments(
-    ['-DQJS_DISABLE_PARSER'],
-    language: 'c',
-  )
-endif
 
 qjs_sys_deps = []
 
@@ -160,6 +154,9 @@ qjs_c_args = ['-D_GNU_SOURCE']
 if host_system == 'windows'
   qjs_c_args += ['-DWIN32_LEAN_AND_MEAN', '-D_WIN32_WINNT=0x0601']
 endif
+
+if not get_option('parser')
+  qjs_c_args += ['-DQJS_DISABLE_PARSER']
 endif
 
 qjs_libc_lib = static_library(

meson_options.txt

@@ -3,4 +3,4 @@ option('examples', type: 'feature', description: 'build examples')
 option('libc', type: 'boolean', value: false, description: 'build qjs standard library modules as part of the library')
 option('cli_mimalloc', type: 'feature', value: 'disabled', description: 'build qjs cli with mimalloc')
 option('docdir', type: 'string', description: 'documentation directory')
-option('disable_parser', type: 'boolean', value: false, description: 'Disable JS source code parser')
+option('parser', type: 'boolean', value: true, description: 'Enable JS source code parser')