Support introspectable=no attribute, add warnings framework

This work allows us to move closer to replacing gtk-doc, among other
things.  We add a generic attribute "introspectable", and inside the
typelib compiler if we see "introspectable=no", we don't put it in the
typelib.  This replaces the hackish pre-filter for varargs with a much
more generic mechanism.

The varargs is now handled in the scanner, and we emit
introspectable=no for them.

Add generic metadata to Node with references to file/line/column,
which currently comes from symbols.

Add scanner options --Wall and --Werror.

1 files changed, 13 insertions, 1 deletions

diff --git a/giscanner/ast.py b/giscanner/ast.py
index 0e9f112d..a70f2d8b 100644
--- a/giscanner/ast.py
+++ b/giscanner/ast.py
@@ -173,12 +173,14 @@ class Node(object):
 
     def __init__(self, name=None):
         self.name = name
-        self.attributes = [] # (key, value)*
         self.skip = False
+        self.introspectable = True
+        self.attributes = [] # (key, value)*
         self.deprecated = None
         self.deprecated_version = None
         self.version = None
         self.foreign = False
+        self.file_positions = set()
 
     def __cmp__(self, other):
         return cmp(self.name, other.name)
@@ -189,6 +191,16 @@ class Node(object):
     def remove_matching_children(self, pred):
         pass
 
+    def inherit_file_positions(self, node):
+        self.file_positions.update(node.file_positions)
+
+    def add_file_position(self, filename, line, column):
+        self.file_positions.add((filename, line, column))
+
+    def add_symbol_reference(self, symbol):
+        if symbol.source_filename:
+            self.add_file_position(symbol.source_filename, symbol.line, -1)
+
 class Namespace(Node):
 
     def __init__(self, name, version):