backend/sdoc_source_code: general source code reader: support scope=file

docs/sphinx/source/strictdoc_01_user_guide.rst

@@ -1803,7 +1803,7 @@ The marker must be added to the top comment of a file. Currently supported only
         """
         This class implements ...
 
-        @relation(REQ-1, scope=file)
+        @relation(REQ-1, scope=class)
         """
 
 **3\) Linking a function to a requirement (Python and C only)**

docs/strictdoc_01_user_guide.sdoc

@@ -2145,7 +2145,7 @@ The marker must be added to the top comment of a file. Currently supported only
         """
         This class implements ...
 
-        @relation(REQ-1, scope=file)
+        @relation(REQ-1, scope=class)
         """
 
 **3\) Linking a function to a requirement (Python and C only)**

strictdoc/backend/sdoc_source_code/grammar.py

@@ -7,7 +7,7 @@
   // The EmptyLine is needed in addition to the SingleLineString because
   // otherwise textX's get_location() ignores the whitespaces.
   // TODO: Maybe there is a trick to disable that and only use SingleLineString.
-  EmptyLine | RangeMarker | LineMarker | SingleLineString
+  EmptyLine | RangeMarker | LineMarker | FunctionRangeMarker | SingleLineString
 ;
 
 EmptyLine[noskipws]:
@@ -31,6 +31,11 @@
   )
 ;
 
+FunctionRangeMarker[noskipws]:
+  /^.*?@relation/
+  "(" (reqs_objs += Req[', ']) ', scope=file)' '\n'?
+;
+
 LineMarker[noskipws]:
   // It is a hard-won result: it is important that the "@sdoc" is within the
   // regex. Putting it next to the regex as "@sdoc" does not work.

strictdoc/backend/sdoc_source_code/reader.py

@@ -8,6 +8,9 @@
 
 from strictdoc.backend.sdoc.error_handling import StrictDocSemanticError
 from strictdoc.backend.sdoc_source_code.grammar import SOURCE_FILE_GRAMMAR
+from strictdoc.backend.sdoc_source_code.models.function_range_marker import (
+    FunctionRangeMarker,
+)
 from strictdoc.backend.sdoc_source_code.models.range_marker import (
     LineMarker,
     RangeMarker,
@@ -206,10 +209,37 @@ def line_marker_processor(line_marker: LineMarker, parse_context: ParseContext):
         markers.append(line_marker)
 
 
+def function_range_marker_processor(
+    function_range_marker: FunctionRangeMarker, parse_context: ParseContext
+):
+    location = get_location(function_range_marker)
+    line = location["line"]
+    column = location["col"]
+
+    if (
+        len(parse_context.marker_stack) > 0
+        and parse_context.marker_stack[-1].ng_is_nodoc
+    ):
+        # This marker is within a "nosdoc" block, so we ignore it.
+        return
+
+    parse_context.markers.append(function_range_marker)
+    function_range_marker.ng_source_line_begin = 1
+    function_range_marker.ng_range_line_begin = 1
+    function_range_marker.ng_range_line_end = parse_context.lines_total
+    function_range_marker.ng_marker_line = line
+    function_range_marker.ng_marker_column = column
+
+    for req in function_range_marker.reqs:
+        markers = parse_context.map_reqs_to_markers.setdefault(req, [])
+        markers.append(function_range_marker)
+
+
 class SourceFileTraceabilityReader:
     SOURCE_FILE_MODELS = [
-        Req,
+        FunctionRangeMarker,
         LineMarker,
+        Req,
         SourceFileTraceabilityInfo,
         RangeMarker,
     ]
@@ -241,8 +271,12 @@ def read(self, input_string, file_path=None) -> SourceFileTraceabilityInfo:
         parse_line_marker_processor = partial(
             line_marker_processor, parse_context=parse_context
         )
+        parse_function_range_marker_processor = partial(
+            function_range_marker_processor, parse_context=parse_context
+        )
 
         obj_processors = {
+            "FunctionRangeMarker": parse_function_range_marker_processor,
             "LineMarker": parse_line_marker_processor,
             "RangeMarker": parse_range_marker_processor,
             "Req": parse_req_processor,

tests/integration/features/file_traceability/55_file_marker/file.py

@@ -0,0 +1,9 @@
+"""
+@relation(REQ-001, scope=file)
+"""
+
+def hello_world():
+    # @sdoc[REQ-001]
+    print("ignored hello world")  # noqa: T201
+    print("ignored hello world")  # noqa: T201
+    # @sdoc[/REQ-001]

tests/integration/features/file_traceability/55_file_marker/input.sdoc

@@ -0,0 +1,7 @@
+[DOCUMENT]
+TITLE: Hello world doc
+
+[REQUIREMENT]
+UID: REQ-001
+TITLE: Requirement Title
+STATEMENT: Requirement Statement

tests/integration/features/file_traceability/55_file_marker/strictdoc.toml

@@ -0,0 +1,5 @@
+[project]
+
+features = [
+  "REQUIREMENT_TO_SOURCE_TRACEABILITY",
+]

tests/integration/features/file_traceability/55_file_marker/test.itest

@@ -0,0 +1,8 @@
+RUN: %strictdoc export %S --output-dir Output | filecheck %s --dump-input=fail
+CHECK: Published: Hello world doc
+
+RUN: %check_exists --file "%S/Output/html/_source_files/file.py.html"
+
+RUN: %cat %S/Output/html/_source_files/file.py.html | filecheck %s --dump-input=fail --check-prefix CHECK-SOURCE-FILE
+CHECK-SOURCE-FILE: [ 3 ]
+CHECK-SOURCE-FILE: [ 5-8 ]

tests/unit/strictdoc/backend/sdoc_source_code/test_dsl_source_file_syntax.py

@@ -362,6 +362,27 @@ def test_050_line_marker():
         assert markers[2].ng_range_line_end == 5
 
 
+def test_060_file_level_marker():
+    source_input = """
+\"\"\"
+@relation(REQ-001, scope=file)
+\"\"\"
+
+def hello_world():
+    pass
+""".lstrip()
+
+    reader = SourceFileTraceabilityReader()
+
+    document = reader.read(source_input)
+    assert len(document.markers) == 1
+    markers = document.markers
+    assert markers[0].reqs == ["REQ-001"]
+    assert markers[0].ng_source_line_begin == 2
+    assert markers[0].ng_range_line_begin == 2
+    assert markers[0].ng_range_line_end == 2
+
+
 def test_validation_01_one_range_marker_begin_req_not_equal_to_end_req():
     source_input = """
 # @sdoc[REQ-001]