+
+ # Add it to the file
+ last_docunit.block += code
+
+ # In order to retrieve precise positions,
+ # the real position of each line of the raw_content is stored.
+ # See `DocUnit::real_location`
+ line_offset -= loc.line_start - 1
+ for i in [loc.line_start..loc.line_end] do
+ last_docunit.lines.add i + line_offset
+ last_docunit.columns.add column_offset
+ end
+ end
+end
+
+# A unit-test extracted from some documentation.
+#
+# A docunit is extracted from the code-blocks of mdocs.
+# Each mdoc can contains more than one docunit, and a single docunit can be made of more that a single code-block.
+class DocUnit
+ super UnitTest
+
+ # The doc that contains self
+ var mdoc: MDoc
+
+ # The XML node that contains the information about the execution
+ var testcase: HTMLTag
+
+ # The text of the code to execute.
+ #
+ # This is the verbatim content on one, or more, code-blocks from `mdoc`
+ var block: String
+
+ # For each line in `block`, the associated line in the mdoc
+ #
+ # Is used to give precise locations
+ var lines = new Array[Int]
+
+ # For each line in `block`, the associated column in the mdoc
+ #
+ # Is used to give precise locations
+ var columns = new Array[Int]
+
+ # The location of the whole docunit.
+ #
+ # If `self` is made of multiple code-blocks, then the location
+ # starts at the first code-books and finish at the last one, thus includes anything between.
+ var location: Location is lazy do
+ return new Location(mdoc.location.file, lines.first, lines.last+1, columns.first+1, 0)
+ end
+
+ # Compute the real location of a node on the `ast` based on `mdoc.location`
+ #
+ # The result is basically: ast_location + markdown location of the piece + mdoc.location
+ #
+ # The fun is that a single docunit can be made of various pieces of code blocks.
+ fun real_location(ast_location: Location): Location
+ do
+ var mdoc = self.mdoc
+ var res = new Location(mdoc.location.file, lines[ast_location.line_start-1],
+ lines[ast_location.line_end-1],
+ columns[ast_location.line_start-1] + ast_location.column_start,
+ columns[ast_location.line_end-1] + ast_location.column_end)
+ return res
+ end
+
+ redef fun to_xml
+ do
+ var res = super
+ res.open("system-out").append(block)
+ return res