X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=write_fluffy.c;h=0d66b0b72ba81f2ea44ac70709743f4693548982;hb=5320994eeba71661802c7e345623c64529b03543;hp=51b058b7873433aca3d344c5c35c3d6496943fd8;hpb=9749dae0f4dbf98e4fca126b97919fd8f33d9652;p=cparser

diff --git a/write_fluffy.c b/write_fluffy.c
index 51b058b..0d66b0b 100644
--- a/write_fluffy.c
+++ b/write_fluffy.c
@@ -1,42 +1,65 @@
+/*
+ * This file is part of cparser.
+ * Copyright (C) 2007-2008 Matthias Braun <matze@braunis.de>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ */
 #include <config.h>
 
 #include <errno.h>
 #include <string.h>
 
+#include "write_fluffy.h"
+#include "symbol_t.h"
 #include "ast_t.h"
 #include "type_t.h"
+#include "type.h"
 #include "adt/error.h"
 
-static FILE *out;
+static const scope_t *global_scope;
+static FILE          *out;
 
 static void write_type(const type_t *type);
 
-static const char *get_atomic_type_string(const atomic_type_type_t type)
+static const char *get_atomic_type_string(const atomic_type_kind_t type)
 {
 	switch(type) {
-	case ATOMIC_TYPE_VOID:      return "void";
-	case ATOMIC_TYPE_CHAR:      return "byte";
-	case ATOMIC_TYPE_SCHAR:     return "byte";
-	case ATOMIC_TYPE_UCHAR:     return "unsigned byte";
-	case ATOMIC_TYPE_SHORT:	    return "short";
-	case ATOMIC_TYPE_USHORT:    return "unsigned short";
-	case ATOMIC_TYPE_INT:       return "int";
-	case ATOMIC_TYPE_UINT:      return "unsigned int";
-	case ATOMIC_TYPE_LONG:      return "int";
-	case ATOMIC_TYPE_ULONG:     return "unsigned int";
-	case ATOMIC_TYPE_LONGLONG:  return "long";
-	case ATOMIC_TYPE_ULONGLONG: return "unsigned long";
-	case ATOMIC_TYPE_FLOAT:     return "float";
-	case ATOMIC_TYPE_DOUBLE:    return "double";
-	case ATOMIC_TYPE_BOOL:      return "bool";
-	default:
-								panic("unsupported atomic type");
+	case ATOMIC_TYPE_VOID:        return "void";
+	case ATOMIC_TYPE_CHAR:        return "byte";
+	case ATOMIC_TYPE_SCHAR:       return "byte";
+	case ATOMIC_TYPE_UCHAR:       return "unsigned byte";
+	case ATOMIC_TYPE_SHORT:	      return "short";
+	case ATOMIC_TYPE_USHORT:      return "unsigned short";
+	case ATOMIC_TYPE_INT:         return "int";
+	case ATOMIC_TYPE_UINT:        return "unsigned int";
+	case ATOMIC_TYPE_LONG:        return "int";
+	case ATOMIC_TYPE_ULONG:       return "unsigned int";
+	case ATOMIC_TYPE_LONGLONG:    return "long";
+	case ATOMIC_TYPE_ULONGLONG:   return "unsigned long";
+	case ATOMIC_TYPE_FLOAT:       return "float";
+	case ATOMIC_TYPE_DOUBLE:      return "double";
+	case ATOMIC_TYPE_LONG_DOUBLE: return "double";
+	case ATOMIC_TYPE_BOOL:        return "bool";
+	default:                      panic("unsupported atomic type");
 	}
 }
 
 static void write_atomic_type(const atomic_type_t *type)
 {
-	fprintf(out, "%s", get_atomic_type_string(type->atype));
+	fprintf(out, "%s", get_atomic_type_string(type->akind));
 }
 
 static void write_pointer_type(const pointer_type_t *type)
@@ -45,18 +68,117 @@ static void write_pointer_type(const pointer_type_t *type)
 	fputc('*', out);
 }
 
+static declaration_t *find_typedef(const type_t *type)
+{
+	/* first: search for a matching typedef in the global type... */
+	declaration_t *declaration = global_scope->declarations;
+	while(declaration != NULL) {
+		if(! (declaration->storage_class == STORAGE_CLASS_TYPEDEF)) {
+			declaration = declaration->next;
+			continue;
+		}
+		if(declaration->type == type)
+			break;
+		declaration = declaration->next;
+	}
+
+	return declaration;
+}
+
+static void write_compound_type(const compound_type_t *type)
+{
+	declaration_t *declaration = find_typedef((const type_t*) type);
+	if(declaration != NULL) {
+		fprintf(out, "%s", declaration->symbol->string);
+		return;
+	}
+
+	/* does the struct have a name? */
+	symbol_t *symbol = type->declaration->symbol;
+	if(symbol != NULL) {
+		/* TODO: make sure we create a struct for it... */
+		fprintf(out, "%s", symbol->string);
+		return;
+	}
+	/* TODO: create a struct and use its name here... */
+	fprintf(out, "/* TODO anonymous struct */byte");
+}
+
+static void write_enum_type(const enum_type_t *type)
+{
+	declaration_t *declaration = find_typedef((const type_t*) type);
+	if(declaration != NULL) {
+		fprintf(out, "%s", declaration->symbol->string);
+		return;
+	}
+
+	/* does the enum have a name? */
+	symbol_t *symbol = type->declaration->symbol;
+	if(symbol != NULL) {
+		/* TODO: make sure we create an enum for it... */
+		fprintf(out, "%s", symbol->string);
+		return;
+	}
+	/* TODO: create a struct and use its name here... */
+	fprintf(out, "/* TODO anonymous enum */byte");
+}
+
+static void write_function_type(const function_type_t *type)
+{
+	fprintf(out, "(func(");
+
+	function_parameter_t *parameter = type->parameters;
+	int                   first     = 1;
+	while(parameter != NULL) {
+		if(!first) {
+			fprintf(out, ", ");
+		} else {
+			first = 0;
+		}
+
+#if 0
+		if(parameter->symbol != NULL) {
+			fprintf(out, "%s : ", parameter->symbol->string);
+		} else {
+			/* TODO make up some unused names (or allow _ in fluffy?) */
+			fprintf(out, "_ : ");
+		}
+#endif
+		fputs("_ : ", out);
+		write_type(parameter->type);
+
+		parameter = parameter->next;
+	}
+
+	fprintf(out, ") : ");
+	write_type(type->return_type);
+	fprintf(out, ")");
+}
+
 static void write_type(const type_t *type)
 {
-	switch(type->type) {
+	switch(type->kind) {
 	case TYPE_ATOMIC:
-		write_atomic_type((const atomic_type_t*) type);
+		write_atomic_type(&type->atomic);
 		return;
 	case TYPE_POINTER:
-		write_pointer_type((const pointer_type_t*) type);
+		write_pointer_type(&type->pointer);
+		return;
+	case TYPE_COMPOUND_UNION:
+	case TYPE_COMPOUND_STRUCT:
+		write_compound_type(&type->compound);
+		return;
+	case TYPE_ENUM:
+		write_enum_type(&type->enumt);
+		return;
+	case TYPE_FUNCTION:
+		write_function_type(&type->function);
 		return;
 	case TYPE_INVALID:
 		panic("invalid type found");
 		break;
+	case TYPE_COMPLEX:
+	case TYPE_IMAGINARY:
 	default:
 		fprintf(out, "/* TODO type */");
 		break;
@@ -72,10 +194,9 @@ static void write_struct_entry(const declaration_t *declaration)
 
 static void write_struct(const symbol_t *symbol, const compound_type_t *type)
 {
-	(void) type;
 	fprintf(out, "struct %s:\n", symbol->string);
 
-	const declaration_t *declaration = type->context.declarations;
+	const declaration_t *declaration = type->declaration->scope.declarations;
 	while(declaration != NULL) {
 		write_struct_entry(declaration);
 		declaration = declaration->next;
@@ -84,6 +205,75 @@ static void write_struct(const symbol_t *symbol, const compound_type_t *type)
 	fprintf(out, "\n");
 }
 
+static void write_union(const symbol_t *symbol, const compound_type_t *type)
+{
+	fprintf(out, "union %s:\n", symbol->string);
+
+	const declaration_t *declaration = type->declaration->scope.declarations;
+	while(declaration != NULL) {
+		write_struct_entry(declaration);
+		declaration = declaration->next;
+	}
+
+	fprintf(out, "\n");
+}
+
+static void write_expression(const expression_t *expression);
+
+static void write_unary_expression(const unary_expression_t *expression)
+{
+	switch(expression->base.kind) {
+	case EXPR_UNARY_NEGATE:
+		fputc('-', out);
+		break;
+	case EXPR_UNARY_NOT:
+		fputc('!', out);
+		break;
+	default:
+		panic("unimeplemented unary expression found");
+	}
+	write_expression(expression->value);
+}
+
+static void write_expression(const expression_t *expression)
+{
+	const const_expression_t *constant;
+	/* TODO */
+	switch(expression->kind) {
+	case EXPR_CONST:
+		constant = &expression->conste;
+		if(is_type_integer(expression->base.type)) {
+			fprintf(out, "%lld", constant->v.int_value);
+		} else {
+			fprintf(out, "%Lf", constant->v.float_value);
+		}
+		break;
+	EXPR_UNARY_CASES
+		write_unary_expression((const unary_expression_t*) expression);
+		break;
+	default:
+		panic("not implemented expression");
+	}
+}
+
+static void write_enum(const symbol_t *symbol, const enum_type_t *type)
+{
+	fprintf(out, "enum %s:\n", symbol->string);
+
+	declaration_t *entry = type->declaration->next;
+	for ( ; entry != NULL && entry->storage_class == STORAGE_CLASS_ENUM_ENTRY;
+			entry = entry->next) {
+		fprintf(out, "\t%s", entry->symbol->string);
+		if(entry->init.initializer != NULL) {
+			fprintf(out, " <- ");
+			write_expression(entry->init.enum_value);
+		}
+		fputc('\n', out);
+	}
+	fprintf(out, "typealias %s <- int\n", symbol->string);
+	fprintf(out, "\n");
+}
+
 static void write_variable(const declaration_t *declaration)
 {
 	fprintf(out, "var %s : ", declaration->symbol->string);
@@ -92,51 +282,106 @@ static void write_variable(const declaration_t *declaration)
 	fprintf(out, "\n");
 }
 
-void write_fluffy_decls(const translation_unit_t *unit)
+static void write_function(const declaration_t *declaration)
 {
-#if 0
-	out = fopen("out.fluffy", "w");
-	if(out == NULL) {
-		fprintf(stderr, "Couldn't open out.fluffy: %s\n", strerror(errno));
-		exit(1);
+	if(declaration->init.statement != NULL) {
+		fprintf(stderr, "Warning: can't convert function bodies (at %s)\n",
+		        declaration->symbol->string);
 	}
-#endif
-	out = stdout;
 
+	fprintf(out, "func extern %s(",
+	        declaration->symbol->string);
+
+	const function_type_t *function_type
+		= (const function_type_t*) declaration->type;
+
+	declaration_t *parameter = declaration->scope.declarations;
+	int            first     = 1;
+	for( ; parameter != NULL; parameter = parameter->next) {
+		if(!first) {
+			fprintf(out, ", ");
+		} else {
+			first = 0;
+		}
+		if(parameter->symbol != NULL) {
+			fprintf(out, "%s : ", parameter->symbol->string);
+		} else {
+			fputs("_ : ", out);
+		}
+		write_type(parameter->type);
+	}
+	if(function_type->variadic) {
+		if(!first) {
+			fprintf(out, ", ");
+		} else {
+			first = 0;
+		}
+		fputs("...", out);
+	}
+	fprintf(out, ")");
+
+	const type_t *return_type = function_type->return_type;
+	if(!is_type_atomic(return_type, ATOMIC_TYPE_VOID)) {
+		fprintf(out, " : ");
+		write_type(return_type);
+	}
+	fputc('\n', out);
+}
+
+void write_fluffy_decls(FILE *output, const translation_unit_t *unit)
+{
+	out            = output;
+	global_scope = &unit->scope;
+
+	ast_set_output(out);
 	fprintf(out, "/* WARNING: Automatically generated file */\n");
 
-	/* write structs + enums */
-	declaration_t *declaration = unit->context.declarations;
-	while(declaration != NULL) {
+	/* write structs,unions + enums */
+	declaration_t *declaration = unit->scope.declarations;
+	for( ; declaration != NULL; declaration = declaration->next) {
 		//fprintf(out, "// Decl: %s\n", declaration->symbol->string);
-		if(! (declaration->storage_class & STORAGE_CLASS_TYPEDEF)) {
-			declaration = declaration->next;
+		if(! (declaration->storage_class == STORAGE_CLASS_TYPEDEF)) {
 			continue;
 		}
 		type_t *type = declaration->type;
-		if(type->type == TYPE_COMPOUND_STRUCT) {
-			write_struct(declaration->symbol, (compound_type_t*) type);
-		} else if(type->type == TYPE_COMPOUND_UNION) {
-			/* TODO */
+		if(type->kind == TYPE_COMPOUND_STRUCT) {
+			write_struct(declaration->symbol, &type->compound);
+		} else if(type->kind == TYPE_COMPOUND_UNION) {
+			write_union(declaration->symbol, &type->compound);
+		} else if(type->kind == TYPE_ENUM) {
+			write_enum(declaration->symbol, &type->enumt);
 		}
-
-		declaration = declaration->next;
 	}
 
 	/* write global variables */
-	declaration = unit->context.declarations;
-	while(declaration != NULL) {
-		if(declaration->storage_class & STORAGE_CLASS_TYPEDEF) {
-			declaration = declaration->next;
+	declaration = unit->scope.declarations;
+	for( ; declaration != NULL; declaration = declaration->next) {
+		if(declaration->namespc != NAMESPACE_NORMAL)
+			continue;
+		if(declaration->storage_class == STORAGE_CLASS_TYPEDEF
+				|| declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY)
 			continue;
-		}
 
 		type_t *type = declaration->type;
-		if(type->type != TYPE_METHOD) {
-			write_variable(declaration);
-		}
-		declaration = declaration->next;
+		if(type->kind == TYPE_FUNCTION)
+			continue;
+
+		write_variable(declaration);
 	}
 
-	//fclose(out);
+	/* write functions */
+	declaration = unit->scope.declarations;
+	for( ; declaration != NULL; declaration = declaration->next) {
+		if(declaration->namespc != NAMESPACE_NORMAL)
+			continue;
+		if(declaration->storage_class == STORAGE_CLASS_TYPEDEF
+				|| declaration->storage_class == STORAGE_CLASS_ENUM_ENTRY)
+			continue;
+
+		type_t *type = declaration->type;
+		if(type->kind != TYPE_FUNCTION)
+			continue;
+
+		write_function(declaration);
+	}
 }