From 2661db6aaa98a5bbd17691cb438ef64752dbcdf4 Mon Sep 17 00:00:00 2001
From: Julgodis <>
Date: Thu, 8 Apr 2021 21:05:48 +0200
Subject: auto decompile more functions

---
 tools/libdol2asm/data/base.py            | 14 ++++++++++++++
 tools/libdol2asm/data/function/ret.py    | 33 +++++++++++++++++++++++++++-----
 tools/libdol2asm/data/reference_array.py |  1 +
 tools/libdol2asm/data/symbol.py          |  9 +++++++++
 4 files changed, 52 insertions(+), 5 deletions(-)

(limited to 'tools/libdol2asm/data')

diff --git a/tools/libdol2asm/data/base.py b/tools/libdol2asm/data/base.py
index 6ceada5eb9..6878ca1341 100644
--- a/tools/libdol2asm/data/base.py
+++ b/tools/libdol2asm/data/base.py
@@ -84,6 +84,12 @@ class ArbitraryData(Symbol):
             self.size // self.element_size,
             self.padding // self.element_size)
 
+    def return_type(self):
+        array_type = self.array_type()
+        if isinstance(array_type, ArrayType) or isinstance(array_type, PaddingArrayType)  or isinstance(array_type, ZeroArrayType):
+            return PointerType(array_type.base)
+        return array_type
+
     def cpp_reference(self, accessor, addr):
         name = self.declaration_name(forward=False, c_export=False,full_qualified_name=True)
         if addr == self.addr:
@@ -92,6 +98,14 @@ class ArbitraryData(Symbol):
             offset = addr - self.addr
             return f"(((char*)&{name})+0x{offset:X})"
 
+    def cpp_load(self, accessor, addr):
+        name = self.declaration_name(forward=False, c_export=False,full_qualified_name=True)
+        if addr == self.addr:
+            return f"{name}"
+        else:
+            offset = addr - self.addr
+            return f"*(((char*)&{name})+0x{offset:X})"
+
     def declaration_name(self, forward: bool,
                          c_export: bool,
                          full_qualified_name: bool):
diff --git a/tools/libdol2asm/data/function/ret.py b/tools/libdol2asm/data/function/ret.py
index bf15e02e9b..aed96c2315 100644
--- a/tools/libdol2asm/data/function/ret.py
+++ b/tools/libdol2asm/data/function/ret.py
@@ -6,16 +6,39 @@ from .base import *
 
 @dataclass(eq=False)
 class ReturnFunction(Function):
-    return_value: str = None
-
-    def export_return_value(self):
-        return self.return_value
+    def export_return_value(self, symbol_table):
+        assert False
 
     async def export_function_body(self, exporter, builder: AsyncBuilder):
-        return_value = self.export_return_value()
+        return_value = self.export_return_value(exporter.gst)
         await builder.write(f" {{")
         if return_value:
             await builder.write(f"\treturn {return_value};")
         else:
             await builder.write(f"\t/* empty function */")
         await builder.write(f"}}")
+
+@dataclass(eq=False)
+class CustomReturnFunction(ReturnFunction):
+    return_value: str = None
+
+    def export_return_value(self, symbol_table):
+        return self.return_value
+
+@dataclass(eq=False)
+class SymbolReturnFunction(ReturnFunction):
+    symbol_addr: int = 0
+    load_or_reference: bool = True
+
+    def gather_references(self, context, valid_range):
+        self.references = set([ self.symbol_addr ])
+
+    def export_return_value(self, symbol_table):
+        symbol = symbol_table[-1, self.symbol_addr]
+        assert symbol
+        name = symbol.cpp_reference(self, self.symbol_addr)
+        type = PointerType(self.return_type)
+        dereference = ""
+        if self.load_or_reference:
+            dereference = "*"
+        return f"{dereference}({type.type()})({name})"
diff --git a/tools/libdol2asm/data/reference_array.py b/tools/libdol2asm/data/reference_array.py
index 1b05b92342..d5d5fdf918 100644
--- a/tools/libdol2asm/data/reference_array.py
+++ b/tools/libdol2asm/data/reference_array.py
@@ -33,6 +33,7 @@ class ReferenceArray(ArbitraryData):
 
     def values(self):
         return Integer.u32_from(self.data)
+        
     def gather_references(self, context, valid_range):
         self.references = [ addr for addr in self.values() if addr in valid_range ]
 
diff --git a/tools/libdol2asm/data/symbol.py b/tools/libdol2asm/data/symbol.py
index 5a708fb361..9a75d16bb6 100644
--- a/tools/libdol2asm/data/symbol.py
+++ b/tools/libdol2asm/data/symbol.py
@@ -139,6 +139,12 @@ class Symbol:
                 f"invalid reference addr 0x{addr:08X} for {type(self).__name__}\n{self}")
         return f"&{self.identifier.label}"
 
+    def cpp_load(self, accessor, addr):
+        if addr != self.addr:
+            raise Dol2ZelException(
+                f"invalid reference addr 0x{addr:08X} for {type(self).__name__}\n{self}")
+        return f"{self.identifier.label}"
+
     def asm_reference(self, addr):
         if addr != self.addr:
             return None
@@ -147,6 +153,9 @@ class Symbol:
     def gather_references(self, context, valid_range):
         pass
 
+    def get_reference_information(self, context, symbol_table):
+        pass
+
     def types(self):
         return set()
 
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