From 8415db2d841323d0c8351c150a6a58a7ac14fc14 Mon Sep 17 00:00:00 2001
From: Bill Currie <bill@taniwha.org>
Date: Fri, 28 Jun 2002 16:00:01 +0000
Subject: [PATCH] clear out the hash tables for compiling multiple object files

---
 tools/qfcc/include/class.h     |  2 ++
 tools/qfcc/include/def.h       |  1 +
 tools/qfcc/include/immediate.h |  2 ++
 tools/qfcc/include/method.h    |  2 ++
 tools/qfcc/include/qfcc.h      |  4 +++
 tools/qfcc/include/struct.h    |  3 ++
 tools/qfcc/include/type.h      |  2 ++
 tools/qfcc/source/class.c      | 11 ++++++
 tools/qfcc/source/def.c        |  7 ++++
 tools/qfcc/source/immediate.c  | 65 ++++++++++++++++++++--------------
 tools/qfcc/source/method.c     |  7 ++++
 tools/qfcc/source/qfcc.c       | 56 ++++++++++++++++++++++++-----
 tools/qfcc/source/struct.c     | 14 ++++++++
 tools/qfcc/source/type.c       |  7 ++++
 14 files changed, 148 insertions(+), 35 deletions(-)

diff --git a/tools/qfcc/include/class.h b/tools/qfcc/include/class.h
index dc1572575..c1bea2f6d 100644
--- a/tools/qfcc/include/class.h
+++ b/tools/qfcc/include/class.h
@@ -96,4 +96,6 @@ void add_protocol (protocollist_t *protocollist, protocol_t *protocol);
 int emit_protocol (protocol_t *protocol);
 int emit_protocol_list (protocollist_t *protocols, const char *name);
 
+void clear_classes (void);
+
 #endif//__class_h
diff --git a/tools/qfcc/include/def.h b/tools/qfcc/include/def.h
index 5190b25ce..ac375b1ee 100644
--- a/tools/qfcc/include/def.h
+++ b/tools/qfcc/include/def.h
@@ -111,5 +111,6 @@ void reset_tempdefs ();
 void flush_scope (scope_t *scope, int force_used);
 void def_initialized (def_t *d);
 
+void clear_defs (void);
 
 #endif//__def_h
diff --git a/tools/qfcc/include/immediate.h b/tools/qfcc/include/immediate.h
index b56017baf..3e51b24f7 100644
--- a/tools/qfcc/include/immediate.h
+++ b/tools/qfcc/include/immediate.h
@@ -38,4 +38,6 @@ struct def_s *ReuseConstant (struct expr_s *expr, struct def_s *def);
 int	CopyString (const char *str);
 int	ReuseString (const char *str);
 
+void clear_immediates (void);
+
 #endif//__immediate_h
diff --git a/tools/qfcc/include/method.h b/tools/qfcc/include/method.h
index 3161d96fe..443ceb081 100644
--- a/tools/qfcc/include/method.h
+++ b/tools/qfcc/include/method.h
@@ -82,4 +82,6 @@ struct def_s *selector_def (const char *sel_id, const char *sel_types);
 
 int emit_methods (methodlist_t *methods, const char *name, int instance);
 
+void clear_selectors (void);
+
 #endif//__method_h
diff --git a/tools/qfcc/include/qfcc.h b/tools/qfcc/include/qfcc.h
index 73b000cef..d94a781dc 100644
--- a/tools/qfcc/include/qfcc.h
+++ b/tools/qfcc/include/qfcc.h
@@ -32,6 +32,7 @@
 #ifndef __qfcc_h
 #define __qfcc_h
 
+#include <stdio.h>
 #include "QF/pr_comp.h"
 
 //============================================================================
@@ -93,6 +94,9 @@ extern	string_t	s_file;			// filename for function definition
 const char *strip_path (const char *filename);
 
 const char *save_string (const char *str);
+void clear_frame_macros (void);
+extern FILE *yyin;
+int yyparse (void);
 
 #define ALLOC(s, t, n, v)							\
 	do {											\
diff --git a/tools/qfcc/include/struct.h b/tools/qfcc/include/struct.h
index 4f475c94d..6de7f3d72 100644
--- a/tools/qfcc/include/struct.h
+++ b/tools/qfcc/include/struct.h
@@ -60,4 +60,7 @@ int emit_struct (struct type_s *strct, const char *name);
 void process_enum (struct expr_s *enm);
 expr_t *get_enum (const char *name);
 
+void clear_structs (void);
+void clear_enums (void);
+
 #endif//__struct_h
diff --git a/tools/qfcc/include/type.h b/tools/qfcc/include/type.h
index c8843cee1..65438683f 100644
--- a/tools/qfcc/include/type.h
+++ b/tools/qfcc/include/type.h
@@ -89,4 +89,6 @@ int type_size (type_t *type);
 
 void init_types (void);
 
+void clear_typedefs (void);
+
 #endif//__type_h
diff --git a/tools/qfcc/source/class.c b/tools/qfcc/source/class.c
index b25ba6411..cf970bc70 100644
--- a/tools/qfcc/source/class.c
+++ b/tools/qfcc/source/class.c
@@ -618,3 +618,14 @@ emit_protocol_list (protocollist_t *protocols, const char *name)
 		proto_list->list[i] = emit_protocol (protocols->list[i]);
 	return proto_list_def->ofs;
 }
+
+void
+clear_classes (void)
+{
+	if (class_hash)
+		Hash_FlushTable (class_hash);
+	if (protocol_hash)
+		Hash_FlushTable (protocol_hash);
+	if (category_hash)
+		Hash_FlushTable (category_hash);
+}
diff --git a/tools/qfcc/source/def.c b/tools/qfcc/source/def.c
index f81ded148..7f32ce78e 100644
--- a/tools/qfcc/source/def.c
+++ b/tools/qfcc/source/def.c
@@ -397,3 +397,10 @@ def_initialized (def_t *d)
 			d->initialized = 1;
 	}
 }
+
+void
+clear_defs (void)
+{
+	if (defs_by_name)
+		Hash_FlushTable (defs_by_name);
+}
diff --git a/tools/qfcc/source/immediate.c b/tools/qfcc/source/immediate.c
index 06f2c974c..3e1888c56 100644
--- a/tools/qfcc/source/immediate.c
+++ b/tools/qfcc/source/immediate.c
@@ -156,32 +156,7 @@ ReuseConstant (expr_t *expr, def_t *def)
 	if (!rep)
 		rep = dstring_newstr ();
 	if (!string_imm_defs) {
-		string_imm_defs = Hash_NewTable (16381, string_imm_get_key, 0, 0);
-		float_imm_defs = Hash_NewTable (16381, float_imm_get_key, 0, 0);
-		vector_imm_defs = Hash_NewTable (16381, vector_imm_get_key, 0, 0);
-		entity_imm_defs = Hash_NewTable (16381, int_imm_get_key, 0, "entity");
-		field_imm_defs = Hash_NewTable (16381, int_imm_get_key, 0, "field");
-		func_imm_defs = Hash_NewTable (16381, int_imm_get_key, 0, "func");
-		pointer_imm_defs = Hash_NewTable (16381, int_imm_get_key, 0, "pointer");
-		quaternion_imm_defs =
-			Hash_NewTable (16381, quaternion_imm_get_key, 0, 0);
-		integer_imm_defs = Hash_NewTable (16381, int_imm_get_key, 0, "integer");
-
-		Hash_Add (string_imm_defs, cn = new_def (&type_string, ".imm",
-												   pr.scope));
-		cn->initialized = cn->constant = 1;
-		Hash_Add (float_imm_defs, cn = new_def (&type_float, ".imm",
-												  pr.scope));
-		cn->initialized = cn->constant = 1;
-		Hash_Add (entity_imm_defs, cn = new_def (&type_entity, ".imm",
-												   pr.scope));
-		cn->initialized = cn->constant = 1;
-		Hash_Add (pointer_imm_defs, cn = new_def (&type_pointer, ".imm",
-													pr.scope));
-		cn->initialized = cn->constant = 1;
-		Hash_Add (integer_imm_defs, cn = new_def (&type_integer, ".imm",
-													pr.scope));
-		cn->initialized = cn->constant = 1;
+		clear_immediates ();
 	}
 	cn = 0;
 	switch (e.type) {
@@ -295,3 +270,41 @@ ReuseConstant (expr_t *expr, def_t *def)
 
 	return cn;
 }
+
+void
+clear_immediates (void)
+{
+	def_t      *cn;
+	if (string_imm_defs) {
+		Hash_FlushTable (string_imm_defs);
+		Hash_FlushTable (float_imm_defs);
+		Hash_FlushTable (vector_imm_defs);
+		Hash_FlushTable (entity_imm_defs);
+		Hash_FlushTable (field_imm_defs);
+		Hash_FlushTable (func_imm_defs);
+		Hash_FlushTable (pointer_imm_defs);
+		Hash_FlushTable (quaternion_imm_defs);
+	} else {
+		string_imm_defs = Hash_NewTable (16381, string_imm_get_key, 0, 0);
+		float_imm_defs = Hash_NewTable (16381, float_imm_get_key, 0, 0);
+		vector_imm_defs = Hash_NewTable (16381, vector_imm_get_key, 0, 0);
+		entity_imm_defs = Hash_NewTable (16381, int_imm_get_key, 0, "entity");
+		field_imm_defs = Hash_NewTable (16381, int_imm_get_key, 0, "field");
+		func_imm_defs = Hash_NewTable (16381, int_imm_get_key, 0, "func");
+		pointer_imm_defs = Hash_NewTable (16381, int_imm_get_key, 0, "pointer");
+		quaternion_imm_defs =
+			Hash_NewTable (16381, quaternion_imm_get_key, 0, 0);
+	}
+	integer_imm_defs = Hash_NewTable (16381, int_imm_get_key, 0, "integer");
+
+	Hash_Add (string_imm_defs, cn = new_def (&type_string, ".imm", pr.scope));
+	cn->initialized = cn->constant = 1;
+	Hash_Add (float_imm_defs, cn = new_def (&type_float, ".imm", pr.scope));
+	cn->initialized = cn->constant = 1;
+	Hash_Add (entity_imm_defs, cn = new_def (&type_entity, ".imm", pr.scope));
+	cn->initialized = cn->constant = 1;
+	Hash_Add (pointer_imm_defs, cn = new_def (&type_pointer, ".imm", pr.scope));
+	cn->initialized = cn->constant = 1;
+	Hash_Add (integer_imm_defs, cn = new_def (&type_integer, ".imm", pr.scope));
+	cn->initialized = cn->constant = 1;
+}
diff --git a/tools/qfcc/source/method.c b/tools/qfcc/source/method.c
index 6d2307255..07ec02061 100644
--- a/tools/qfcc/source/method.c
+++ b/tools/qfcc/source/method.c
@@ -323,3 +323,10 @@ emit_methods (methodlist_t *_methods, const char *name, int instance)
 	}
 	return methods_def->ofs;
 }
+
+void
+clear_selectors (void)
+{
+	if (sel_def_hash)
+		Hash_FlushTable (sel_def_hash);
+}
diff --git a/tools/qfcc/source/qfcc.c b/tools/qfcc/source/qfcc.c
index c737a9135..e6dd0724a 100644
--- a/tools/qfcc/source/qfcc.c
+++ b/tools/qfcc/source/qfcc.c
@@ -71,10 +71,12 @@ static const char rcsid[] =
 #include "function.h"
 #include "idstuff.h"
 #include "immediate.h"
+#include "method.h"
 #include "obj_file.h"
 #include "opcodes.h"
 #include "options.h"
 #include "reloc.h"
+#include "struct.h"
 #include "type.h"
 
 options_t   options;
@@ -125,6 +127,12 @@ InitData (void)
 {
 	int         i;
 
+	if (pr.statements) {
+		free (pr.statements);
+		memset (&pr, 0, sizeof (pr));
+	}
+	pr_source_line = 1;
+	pr_error_count = 0;
 	pr.num_statements = 1;
 	pr.strofs = 1;
 	pr.num_functions = 1;
@@ -444,6 +452,37 @@ setup_sym_file (const char *output_file)
 	}
 }
 
+static int
+compile_to_obj (const char *file, const char *obj)
+{
+	int         err;
+
+	yyin = preprocess_file (file);
+
+	InitData ();
+	begin_compilation ();
+	s_file = ReuseString (strip_path (file));
+	clear_frame_macros ();
+	clear_classes ();
+	clear_defs ();
+	clear_immediates ();
+	clear_selectors ();
+	clear_structs ();
+	clear_enums ();
+	clear_typedefs ();
+	err = yyparse () || pr_error_count;
+	fclose (yyin);
+	if (cpp_name && (!options.save_temps)) {
+		if (unlink (tempname->str)) {
+			perror ("unlink");
+			exit (1);
+		}
+	}
+	if (!err)
+		write_obj_file (obj);
+	return err;
+}
+
 static int
 separate_compile (void)
 {
@@ -475,6 +514,9 @@ separate_compile (void)
 		if (strncmp (*file, "-l", 2)
 			&& (!strcmp (extension->str, ".r")
 				|| !strcmp (extension->str, ".qc"))) {
+			printf ("%s %s\n", *file, output_file->str);
+			compile_to_obj (*file, output_file->str);
+
 			free ((char *)*file);
 			*file = strdup (output_file->str);
 		} else {
@@ -522,15 +564,13 @@ progs_src_compile (void)
 	}
 	setup_sym_file (options.output_file);
 
+	InitData ();
+
 	begin_compilation ();
 
 	// compile all the files
 	while ((src = Parse (src))) {
-		int         error;
-
-		extern FILE *yyin;
-		int         yyparse (void);
-		extern void clear_frame_macros (void);
+		int         err;
 
 		//extern int yydebug;
 		//yydebug = 1;
@@ -548,7 +588,7 @@ progs_src_compile (void)
 		s_file = ReuseString (strip_path (filename->str));
 		pr_source_line = 1;
 		clear_frame_macros ();
-		error = yyparse () || pr_error_count;
+		err = yyparse () || pr_error_count;
 		fclose (yyin);
 		if (cpp_name && (!options.save_temps)) {
 			if (unlink (tempname->str)) {
@@ -556,7 +596,7 @@ progs_src_compile (void)
 				exit (1);
 			}
 		}
-		if (error)
+		if (err)
 			return 1;
 	}
 
@@ -608,8 +648,6 @@ main (int argc, char **argv)
 	opcode_init ();
 	init_types ();
 
-	InitData ();
-
 	if (source_files) {
 		res = separate_compile ();
 	} else {
diff --git a/tools/qfcc/source/struct.c b/tools/qfcc/source/struct.c
index e6657f053..03952d834 100644
--- a/tools/qfcc/source/struct.c
+++ b/tools/qfcc/source/struct.c
@@ -246,6 +246,13 @@ emit_struct(type_t *strct, const char *name)
 	return ivars_def->ofs;
 }
 
+void
+clear_structs (void)
+{
+	if (structs)
+		Hash_FlushTable (structs);
+}
+
 void
 process_enum (expr_t *enm)
 {
@@ -302,3 +309,10 @@ get_enum (const char *name)
 		return 0;
 	return &e->value;
 }
+
+void
+clear_enums (void)
+{
+	if (enums)
+		Hash_FlushTable (enums);
+}
diff --git a/tools/qfcc/source/type.c b/tools/qfcc/source/type.c
index d942d051b..ef97100ba 100644
--- a/tools/qfcc/source/type.c
+++ b/tools/qfcc/source/type.c
@@ -529,3 +529,10 @@ init_types (void)
 	type_obj_exec_class.parm_types[0] = pointer_type (type_module);
 	chain_type (&type_obj_exec_class);
 }
+
+void
+clear_typedefs (void)
+{
+	if (typedef_hash)
+		Hash_FlushTable (typedef_hash);
+}