_yaml: rework 'assert_symbol_names' to not require provenance

Now that we get scalar Nodes, it is easier to just give the node and
extract the provenance as needed.

5 files changed, 11 insertions, 11 deletions

diff --git a/src/buildstream/_frontend/app.py b/src/buildstream/_frontend/app.py
index cf4ac2b8d..53275d251 100644
--- a/src/buildstream/_frontend/app.py
+++ b/src/buildstream/_frontend/app.py
@@ -349,7 +349,7 @@ class App():
             if project_name:
                 # If project name was specified, user interaction is not desired, just
                 # perform some validation and write the project.conf
-                _yaml.assert_symbol_name(None, project_name, 'project name')
+                _yaml.assert_symbol_name(project_name, 'project name')
                 self._assert_format_version(format_version)
                 self._assert_element_path(element_path)
 
diff --git a/src/buildstream/_options/option.py b/src/buildstream/_options/option.py
index 8fe0cbad6..ae5d56beb 100644
--- a/src/buildstream/_options/option.py
+++ b/src/buildstream/_options/option.py
@@ -66,8 +66,7 @@ class Option():
 
         # Assert valid symbol name for variable name
         if self.variable is not None:
-            p = _yaml.node_get_provenance(node, 'variable')
-            _yaml.assert_symbol_name(p, self.variable, 'variable name')
+            _yaml.assert_symbol_name(self.variable, 'variable name', ref_node=node.get_node('variable'))
 
     # load_value()
     #
diff --git a/src/buildstream/_options/optionpool.py b/src/buildstream/_options/optionpool.py
index f695c0acf..cd4bfb6dc 100644
--- a/src/buildstream/_options/optionpool.py
+++ b/src/buildstream/_options/optionpool.py
@@ -68,8 +68,7 @@ class OptionPool():
         for option_name, option_definition in options.items():
 
             # Assert that the option name is a valid symbol
-            p = _yaml.node_get_provenance(options, option_name)
-            _yaml.assert_symbol_name(p, option_name, "option name", allow_dashes=False)
+            _yaml.assert_symbol_name(option_name, "option name", ref_node=option_definition, allow_dashes=False)
 
             opt_type_name = option_definition.get_str('type')
             try:
diff --git a/src/buildstream/_project.py b/src/buildstream/_project.py
index c78cfd878..45eae03f9 100644
--- a/src/buildstream/_project.py
+++ b/src/buildstream/_project.py
@@ -594,8 +594,8 @@ class Project():
         self.name = self._project_conf.get_str('name')
 
         # Validate that project name is a valid symbol name
-        _yaml.assert_symbol_name(_yaml.node_get_provenance(pre_config_node, 'name'),
-                                 self.name, "project name")
+        _yaml.assert_symbol_name(self.name, "project name",
+                                 ref_node=pre_config_node.get_node('name'))
 
         self.element_path = os.path.join(
             self.directory,
diff --git a/src/buildstream/_yaml.pyx b/src/buildstream/_yaml.pyx
index 2df6a7d1b..a84c05759 100644
--- a/src/buildstream/_yaml.pyx
+++ b/src/buildstream/_yaml.pyx
@@ -1219,9 +1219,9 @@ cdef Node _new_node_from_list(list inlist, Node ref_node):
 # are required to be symbols.
 #
 # Args:
-#    provenance (Provenance): The provenance of the loaded symbol, or None
 #    symbol_name (str): The loaded symbol name
 #    purpose (str): The purpose of the string, for an error message
+#    ref_node (Node): The node of the loaded symbol, or None
 #    allow_dashes (bool): Whether dashes are allowed for this symbol
 #
 # Raises:
@@ -1230,7 +1230,7 @@ cdef Node _new_node_from_list(list inlist, Node ref_node):
 # Note that dashes are generally preferred for variable names and
 # usage in YAML, but things such as option names which will be
 # evaluated with jinja2 cannot use dashes.
-def assert_symbol_name(ProvenanceInformation provenance, str symbol_name, str purpose, *, bint allow_dashes=True):
+def assert_symbol_name(str symbol_name, str purpose, *, Node ref_node=None, bint allow_dashes=True):
     cdef str valid_chars = string.digits + string.ascii_letters + '_'
     if allow_dashes:
         valid_chars += '-'
@@ -1250,8 +1250,10 @@ def assert_symbol_name(ProvenanceInformation provenance, str symbol_name, str pu
             detail += " or dashes"
 
         message = "Invalid symbol name for {}: '{}'".format(purpose, symbol_name)
-        if provenance is not None:
-            message = "{}: {}".format(provenance, message)
+        if ref_node:
+            provenance = node_get_provenance(ref_node)
+            if provenance is not None:
+                message = "{}: {}".format(provenance, message)
 
         raise LoadError(LoadErrorReason.INVALID_SYMBOL_NAME,
                         message, detail=detail)