Purge `is_cross` and friends without changing user interfaces

In most cases instead pass `for_machine`, the name of the relevant
machines (what compilers target, what targets run on, etc). This allows
us to use the cross code path in the native case, deduplicating the
code.

As one can see, environment got bigger as more information is kept
structured there, while ninjabackend got a smaller. Overall a few amount
of lines were added, but the hope is what's added is a lot simpler than
what's removed.

1 files changed, 4 insertions, 3 deletions

diff --git a/mesonbuild/compilers/compilers.py b/mesonbuild/compilers/compilers.py
index 3ad80fe..0a228b4 100644
--- a/mesonbuild/compilers/compilers.py
+++ b/mesonbuild/compilers/compilers.py
@@ -21,7 +21,7 @@ from .. import coredata
 from .. import mlog
 from .. import mesonlib
 from ..mesonlib import (
-    EnvironmentException, MesonException, OrderedSet,
+    EnvironmentException, MachineChoice, MesonException, OrderedSet,
     version_compare, Popen_safe
 )
 from ..envconfig import (
@@ -871,7 +871,7 @@ class Compiler:
     # manually searched.
     internal_libs = ()
 
-    def __init__(self, exelist, version, **kwargs):
+    def __init__(self, exelist, version, for_machine: MachineChoice, **kwargs):
         if isinstance(exelist, str):
             self.exelist = [exelist]
         elif isinstance(exelist, list):
@@ -889,6 +889,7 @@ class Compiler:
             self.full_version = kwargs['full_version']
         else:
             self.full_version = None
+        self.for_machine = for_machine
         self.base_options = []
 
     def __repr__(self):
@@ -2183,7 +2184,7 @@ class ClangCompiler(GnuLikeCompiler):
 
 class ArmclangCompiler:
     def __init__(self, compiler_type):
-        if not self.is_cross:
+        if self.is_cross:
             raise EnvironmentException('armclang supports only cross-compilation.')
         # Check whether 'armlink.exe' is available in path
         self.linker_exe = 'armlink.exe'