From 1e66faac5f15a5c213d1c30a057f0bd767332a71 Mon Sep 17 00:00:00 2001
From: Jussi Pakkanen <jpakkane@gmail.com>
Date: Sat, 23 Feb 2013 21:13:01 +0200
Subject: [PATCH] Store generation info in build state.

---
 interpreter.py | 41 ++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 40 insertions(+), 1 deletion(-)

diff --git a/interpreter.py b/interpreter.py
index 570def3ae..37e378fdf 100755
--- a/interpreter.py
+++ b/interpreter.py
@@ -77,7 +77,33 @@ class Generator(InterpreterObject):
         return self.name_rule.replace('@BASENAME@', base)
 
     def process_method(self, args, kwargs):
-        return self
+        if len(kwargs) > 0:
+            raise InvalidArguments('Process does not take keyword arguments.')
+        if isinstance(args, str):
+            args = [args]
+        if not isinstance(args, list):
+            raise InvalidArguments('Argument to "process" must be a string or a list of strings.')
+        for a in args:
+            if not isinstance(a, str):
+                raise InvalidArguments('A non-string object in "process" arguments.')
+        gl = GeneratedList(self)
+        [gl.add_file(a) for a in args]
+        return gl
+
+class GeneratedList(InterpreterObject):
+    def __init__(self, generator):
+        InterpreterObject.__init__(self)
+        self.generator = generator
+        self.filelist = []
+
+    def add_file(self, newfile):
+        self.filelist.append(newfile)
+
+    def get_filelist(self):
+        return self.filelist
+
+    def get_generator(self):
+        return self.generator
 
 # This currently returns data for the current environment.
 # It should return info for the target host.
@@ -202,6 +228,7 @@ class BuildTarget(InterpreterObject):
         self.need_install = False
         self.pch = []
         self.extra_args = {}
+        self.generated = []
         self.process_kwargs(kwargs)
 
     def process_kwargs(self, kwargs):
@@ -235,6 +262,10 @@ class BuildTarget(InterpreterObject):
         if not isinstance(deplist, list):
             deplist = [deplist]
         self.add_external_deps(deplist)
+        genlist = kwargs.get('gen_src', [])
+        if not isinstance(genlist, list):
+            genlist = [genlist]
+        self.set_generated(genlist)
 
     def get_subdir(self):
         return self.subdir
@@ -257,6 +288,9 @@ class BuildTarget(InterpreterObject):
     def get_sources(self):
         return self.sources
 
+    def get_generated_sources(self):
+        return self.generated
+
     def should_install(self):
         return self.need_install
 
@@ -288,6 +322,11 @@ class BuildTarget(InterpreterObject):
             raise InvalidArguments('Link target is not library.')
         self.link_targets.append(target)
 
+    def set_generated(self, genlist):
+        for g in genlist:
+            if not(isinstance(g, GeneratedList)):
+                raise InvalidArguments('Generated source argument is not the output of a generator.')
+
     def add_pch(self, pchlist):
         for a in pchlist:
             self.pch.append(a)