CHiLL module skeleton

Author: brnorris03

orio/module/chill/__init__.py

@@ -0,0 +1,78 @@
+#
+# The implementation of annotation parser
+#
+
+import re, sys
+from orio.main.util.globals import *
+
+#----------------------------------------------------------------
+
+class AnnParser:
+    '''The class definition for the annotation parser'''
+
+    def __init__(self, perf_params):
+        '''To instantiate the annotation parser'''
+
+        self.perf_params = perf_params
+    
+    def parse(self, text):
+        '''Parse the annotation text to get variable-value pairs'''
+
+        # remember the given code text
+        orig_text = text
+
+        # regular expressions
+        __python_exp_re = r'\s*((.|\n)*?);\s*'
+        __var_re = r'\s*([A-Za-z_]\w*)\s*'
+        __semi_re = r'\s*;\s*'
+        __equal_re = r'\s*=\s*'
+
+        # initialize the data structure to store all variable-value pairs
+        var_val_pairs = []
+
+        # get all variable-value pairs
+        while True:
+            if (not text) or text.isspace():
+                break
+            m = re.match(__var_re, text)
+            if not m:
+                err('orio.module.chill.ann_parser: Pluto: annotation syntax error: "%s"' % orig_text)
+            text = text[m.end():]
+            var = m.group(1)
+            m = re.match(__equal_re, text)
+            if not m:
+                err('orio.module.chill.ann_parser: Pluto: annotation syntax error: "%s"' % orig_text)
+            text = text[m.end():]
+            if text.count(';') == 0:
+                err('orio.module.chill.ann_parser: Pluto: annotation syntax error: "%s"' % orig_text)
+            m = re.match(__python_exp_re, text)
+            if not m:
+                err('orio.module.pluto.ann_parser: Pluto: annotation syntax error: "%s"' % orig_text)
+            text = text[m.end():]
+            val = m.group(1)
+            var_val_pairs.append((var, val))
+
+        # evaluate all values and check their semantics
+        n_var_val_pairs = []
+        for var, val in var_val_pairs:
+            val = self.__evalExp(val)
+            n_var_val_pairs.append((var, val))
+        var_val_pairs = n_var_val_pairs
+
+        # return all variable value pairs
+        return var_val_pairs
+    
+    
+    #------------------------------------------------------------
+    # Private
+
+    def __evalExp(self, text):
+        '''Evaluate the given expression text'''
+
+        try:
+            val = eval(text, self.perf_params)
+        except Exception, e:
+            err('orio.module.pluto.ann_parser: failed to evaluate expression: "%s"\n --> %s: %s' % (text, e.__class__.__name__, e))
+        return val
+
+

orio/module/chill/ann_parser.py

@@ -0,0 +1,39 @@
+#
+# This Orio 
+#
+
+import orio.module.module
+
+#-----------------------------------------
+
+class CHiLL(orio.module.module.Module):
+    '''A simple rewriting module.'''
+
+    def __init__(self, perf_params, module_body_code, annot_body_code, line_no, indent_size, language='C'):
+        '''To instantiate a simple rewriting module.'''
+
+        orio.module.module.Module.__init__(self, perf_params, module_body_code, annot_body_code,
+                                      line_no, indent_size, language)
+
+    #---------------------------------------------------------------------
+    
+    def transform(self):
+        '''To simply rewrite the annotated code'''
+
+        # to create a comment containing information about the class attributes
+        comment = '''
+        /*
+         perf_params = %s
+         module_body_code = "%s"
+         annot_body_code = "%s"
+         line_no = %s
+         indent_size = %s
+        */
+        ''' % (self.perf_params, self.module_body_code, self.annot_body_code, self.line_no, self.indent_size)
+
+        # Do nothing except output the code annotated with a comment for the parameters that were specified
+        output_code = comment + self.annot_body_code
+
+        # return the output code
+        return output_code
+

orio/module/chill/chill.py

@@ -1,6 +1,6 @@
 #
-# This orio.module.does not perform any significant code transformations at all.
-# The purpose of this orio.module.is merely to provide a simple example to application developers
+# This orio module does not perform any significant code transformations at all.
+# The purpose of this orio module is merely to provide a simple example to application developers
 # for how to extend Orio with a new program transformation orio.module.
 #