Merge from parser2 branch

tools/isledecomp/isledecomp/parser/error.py

@@ -0,0 +1,33 @@
+from enum import Enum
+
+
+class ParserError(Enum):
+    # WARN: Stub function exceeds some line number threshold
+    UNLIKELY_STUB = 100
+
+    # WARN: Decomp marker is close enough to be recognized, but does not follow syntax exactly
+    BAD_DECOMP_MARKER = 101
+
+    # WARN: Multiple markers in sequence do not have distinct modules
+    DUPLICATE_MODULE = 102
+
+    # WARN: Detected a dupcliate module/offset pair in the current file
+    DUPLICATE_OFFSET = 103
+
+    # WARN: We read a line that matches the decomp marker pattern, but we are not set up
+    # to handle it
+    BOGUS_MARKER = 104
+
+    # WARN: Under a synthetic marker we expected a comment but found a code line instead
+    SYNTHETIC_NOT_COMMENT = 110
+
+    # WARN: New function marker appeared while we were inside a function
+    MISSED_END_OF_FUNCTION = 117
+
+    # ERROR: We found a marker unexpectedly
+    UNEXPECTED_MARKER = 200
+
+    # ERROR: We found a marker where we expected to find one, but it is incompatible
+    # with the preceding markers.
+    # For example, a GLOBAL cannot follow FUNCTION/STUB
+    INCOMPATIBLE_MARKER = 201