AST for Older Pythons

CHANGELOG.md

@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [4.0.3] - Unreleased
+
+### Changed 
+- #52: Method mapping code now doesn't use AST's endline_no property to support older python versions 
+
 ## [4.0.2] - 2024-08-16
 
 ### Fixed

cls/TestCoverage/Utils.cls

@@ -451,9 +451,8 @@ ClassMethod GetPythonMethodMapping(pDocumentText) [ Language = python ]
 	import iris
 	import ast 
 	source_lines = iris.cls('%SYS.Python').ToList(pDocumentText)
-	source_lines = [line + "\n" for line in source_lines]  # contains a list of each line of the source code
 
-	source = ''.join(source_lines)
+	source = '\n'.join(source_lines)
 	tree = ast.parse(source)
 	line_function_map = [None] * (len(source_lines)+2)
 	method_map = {} # dictionary from the method name to its start and ending line number
@@ -473,7 +472,9 @@ ClassMethod GetPythonMethodMapping(pDocumentText) [ Language = python ]
 		def visit_FunctionDef(self, node):
 			if self.outermost_function is None:
 				self.outermost_function = node.name
-				method_map[node.name] = (node.lineno-1, node.end_lineno-1) 
+				start_line = node.lineno
+				end_line = self.get_end_line(node)
+				method_map[node.name] = (start_line, end_line)
 
 			self.current_function = node.name
 			for lineno in range(node.lineno, node.end_lineno + 1):
@@ -483,14 +484,13 @@ ClassMethod GetPythonMethodMapping(pDocumentText) [ Language = python ]
 			self.current_function = None
 			if self.outermost_function == node.name:
 				self.outermost_function = None
-
-	# preprocessing the ending line number for each function 
-	tree_with_line_numbers = ast.increment_lineno(tree, n=1)
-	for node in ast.walk(tree_with_line_numbers):
-		if isinstance(node, ast.FunctionDef):
-			node.end_lineno = node.body[-1].end_lineno
+		@staticmethod
+		def get_end_line(node):
+			return max(child.lineno for child in ast.walk(node) if hasattr(child, 'lineno'))
 
 	FunctionMapper().visit(tree)
+	print(source_lines)
+	print(method_map)
 	return (line_function_map, method_map)
 }
 

module.xml

@@ -2,7 +2,7 @@
 <Export generator="Cache" version="25">
 <Document name="TestCoverage.ZPM"><Module>
   <Name>TestCoverage</Name>
-  <Version>4.0.2</Version>
+  <Version>4.0.3</Version>
   <Description>Run your typical ObjectScript %UnitTest tests and see which lines of your code are executed. Includes Cobertura-style reporting for use in continuous integration tools.</Description>
   <Packaging>module</Packaging>
   <Resource Name="TestCoverage.PKG" Directory="cls" />