compiler: embed host exception constructors as such (fixes #204).

artiq/compiler/embedding.py

@@ -124,6 +124,9 @@ class ASTSynthesizer:
                                                 OrderedDict())
                 instance_type.attributes['__objectid__'] = builtins.TInt32()
 
+                if issubclass(typ, BaseException):
+                    constructor_type = types.TExceptionConstructor(instance_type)
+                else:
                     constructor_type = types.TConstructor(instance_type)
                 constructor_type.attributes['__objectid__'] = builtins.TInt32()
                 instance_type.constructor = constructor_type

artiq/compiler/testbench/embedding.py

@@ -6,6 +6,12 @@ from artiq.master.worker_db import DeviceManager
 from artiq.coredevice.core import Core, CompileError
 
 def main():
+    if len(sys.argv) > 1 and sys.argv[1] == "+diag":
+        del sys.argv[1]
+        diag = True
+    else:
+        diag = False
+
     if len(sys.argv) > 1 and sys.argv[1] == "+compile":
         del sys.argv[1]
         compile_only = True
@@ -30,6 +36,8 @@ def main():
             core.comm.clear_log()
     except CompileError as error:
         print("\n".join(error.__cause__.diagnostic.render(only_line=True)))
+        if not diag:
+            exit(1)
 
 if __name__ == "__main__":
     main()

lit-test/test/embedding/error_attr_absent.py

@@ -1,4 +1,4 @@
-# RUN: %python -m artiq.compiler.testbench.embedding %s >%t
+# RUN: %python -m artiq.compiler.testbench.embedding +diag %s >%t
 # RUN: OutputCheck %s --file-to-check=%t
 
 from artiq.language.core import *

lit-test/test/embedding/error_attr_absent_suggest.py

@@ -1,4 +1,4 @@
-# RUN: %python -m artiq.compiler.testbench.embedding %s >%t
+# RUN: %python -m artiq.compiler.testbench.embedding +diag %s >%t
 # RUN: OutputCheck %s --file-to-check=%t
 
 from artiq.language.core import *

lit-test/test/embedding/error_attr_conflict.py

@@ -1,4 +1,4 @@
-# RUN: %python -m artiq.compiler.testbench.embedding %s >%t
+# RUN: %python -m artiq.compiler.testbench.embedding +diag %s >%t
 # RUN: OutputCheck %s --file-to-check=%t
 
 from artiq.language.core import *

lit-test/test/embedding/error_attr_unify.py

@@ -1,4 +1,4 @@
-# RUN: %python -m artiq.compiler.testbench.embedding %s >%t
+# RUN: %python -m artiq.compiler.testbench.embedding +diag %s >%t
 # RUN: OutputCheck %s --file-to-check=%t
 
 from artiq.language.core import *

lit-test/test/embedding/error_name_absent_suggest.py

@@ -1,4 +1,4 @@
-# RUN: %python -m artiq.compiler.testbench.embedding %s >%t
+# RUN: %python -m artiq.compiler.testbench.embedding +diag %s >%t
 # RUN: OutputCheck %s --file-to-check=%t
 
 from artiq.language.core import *

lit-test/test/embedding/error_rpc_annot_return.py

@@ -1,4 +1,4 @@
-# RUN: %python -m artiq.compiler.testbench.embedding %s >%t
+# RUN: %python -m artiq.compiler.testbench.embedding +diag %s >%t
 # RUN: OutputCheck %s --file-to-check=%t
 
 from artiq.language.core import *

lit-test/test/embedding/error_rpc_default_unify.py

@@ -1,4 +1,4 @@
-# RUN: %python -m artiq.compiler.testbench.embedding %s >%t
+# RUN: %python -m artiq.compiler.testbench.embedding +diag %s >%t
 # RUN: OutputCheck %s --file-to-check=%t
 
 from artiq.language.core import *

lit-test/test/embedding/error_syscall_annot.py

@@ -1,4 +1,4 @@
-# RUN: %python -m artiq.compiler.testbench.embedding %s >%t
+# RUN: %python -m artiq.compiler.testbench.embedding +diag %s >%t
 # RUN: OutputCheck %s --file-to-check=%t
 
 from artiq.language.core import *

lit-test/test/embedding/error_syscall_annot_return.py

@@ -1,4 +1,4 @@
-# RUN: %python -m artiq.compiler.testbench.embedding %s >%t
+# RUN: %python -m artiq.compiler.testbench.embedding +diag %s >%t
 # RUN: OutputCheck %s --file-to-check=%t
 
 from artiq.language.core import *

lit-test/test/embedding/error_syscall_arg.py

@@ -1,4 +1,4 @@
-# RUN: %python -m artiq.compiler.testbench.embedding %s >%t
+# RUN: %python -m artiq.compiler.testbench.embedding +diag %s >%t
 # RUN: OutputCheck %s --file-to-check=%t
 
 from artiq.language.core import *

lit-test/test/embedding/error_syscall_default_arg.py

@@ -1,4 +1,4 @@
-# RUN: %python -m artiq.compiler.testbench.embedding %s >%t
+# RUN: %python -m artiq.compiler.testbench.embedding +diag %s >%t
 # RUN: OutputCheck %s --file-to-check=%t
 
 from artiq.language.core import *

lit-test/test/embedding/error_syscall_return.py

@@ -1,4 +1,4 @@
-# RUN: %python -m artiq.compiler.testbench.embedding %s >%t
+# RUN: %python -m artiq.compiler.testbench.embedding +diag %s >%t
 # RUN: OutputCheck %s --file-to-check=%t
 
 from artiq.language.core import *

lit-test/test/embedding/exception.py

@@ -0,0 +1,12 @@
+# RUN: %python -m artiq.compiler.testbench.embedding %s
+
+from artiq.language.core import *
+from artiq.language.types import *
+from artiq.coredevice.exceptions import RTIOUnderflow
+
+@kernel
+def entrypoint():
+    try:
+        pass
+    except RTIOUnderflow:
+        pass