X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=write_fluffy.c;h=ce28c55a991ff3371326dce4dec6848a9990d483;hb=2f487005db774b00459937cc8e2aec5d381557cd;hp=51b058b7873433aca3d344c5c35c3d6496943fd8;hpb=9749dae0f4dbf98e4fca126b97919fd8f33d9652;p=cparser

diff --git a/write_fluffy.c b/write_fluffy.c
index 51b058b..ce28c55 100644
--- a/write_fluffy.c
+++ b/write_fluffy.c
@@ -5,32 +5,34 @@
 
 #include "ast_t.h"
 #include "type_t.h"
+#include "type.h"
 #include "adt/error.h"
 
-static FILE *out;
+static const context_t *global_context;
+static FILE            *out;
 
 static void write_type(const type_t *type);
 
 static const char *get_atomic_type_string(const atomic_type_type_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");
 	}
 }
 
@@ -45,6 +47,93 @@ 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_context->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_method_type(const method_type_t *type)
+{
+	fprintf(out, "(func(");
+
+	method_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->result_type);
+	fprintf(out, ")");
+}
+
 static void write_type(const type_t *type)
 {
 	switch(type->type) {
@@ -54,6 +143,16 @@ static void write_type(const type_t *type)
 	case TYPE_POINTER:
 		write_pointer_type((const pointer_type_t*) type);
 		return;
+	case TYPE_COMPOUND_UNION:
+	case TYPE_COMPOUND_STRUCT:
+		write_compound_type((const compound_type_t*) type);
+		return;
+	case TYPE_ENUM:
+		write_enum_type((const enum_type_t*) type);
+		return;
+	case TYPE_METHOD:
+		write_method_type((const method_type_t*) type);
+		return;
 	case TYPE_INVALID:
 		panic("invalid type found");
 		break;
@@ -72,10 +171,22 @@ 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->context.declarations;
+	while(declaration != NULL) {
+		write_struct_entry(declaration);
+		declaration = declaration->next;
+	}
+
+	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->context.declarations;
 	while(declaration != NULL) {
 		write_struct_entry(declaration);
 		declaration = declaration->next;
@@ -84,6 +195,71 @@ static void write_struct(const symbol_t *symbol, const compound_type_t *type)
 	fprintf(out, "\n");
 }
 
+static void write_expression(const expression_t *expression);
+
+static void write_unary_expression(const unary_expression_t *expression)
+{
+	switch(expression->type) {
+	case UNEXPR_NEGATE:
+		fputc('-', out);
+		break;
+	case UNEXPR_NOT:
+		fputc('!', out);
+		break;
+	default:
+		panic("unimeplemented unary expression found");
+	}
+	write_expression(expression->value);
+}
+
+static void write_expression(const expression_t *expression)
+{
+	const const_t *constant;
+	/* TODO */
+	switch(expression->type) {
+	case EXPR_CONST:
+		constant = (const const_t*) expression;
+		if(is_type_integer(expression->datatype)) {
+			fprintf(out, "%d", constant->v.int_value);
+		} else {
+			fprintf(out, "%Lf", constant->v.float_value);
+		}
+		break;
+	case EXPR_UNARY:
+		write_unary_expression((const unary_expression_t*) expression);
+		break;
+	default:
+		panic("not implemented expression");
+	}
+}
+
+static void write_initializer(const initializer_t *initializer)
+{
+	if(initializer->type != INITIALIZER_VALUE) {
+		panic("list initializers not supported yet");
+	}
+
+	write_expression(initializer->v.value);
+}
+
+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->context_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_initializer(entry->init.initializer);
+		}
+		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);
@@ -92,6 +268,52 @@ static void write_variable(const declaration_t *declaration)
 	fprintf(out, "\n");
 }
 
+static void write_function(const declaration_t *declaration)
+{
+	if(declaration->init.statement != NULL) {
+		fprintf(stderr, "Warning: can't convert function bodies (at %s)\n",
+		        declaration->symbol->string);
+	}
+
+	fprintf(out, "func extern %s(",
+	        declaration->symbol->string);
+
+	const method_type_t *method_type = (const method_type_t*) declaration->type;
+
+	declaration_t *parameter = declaration->context.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(method_type->variadic) {
+		if(!first) {
+			fprintf(out, ", ");
+		} else {
+			first = 0;
+		}
+		fputs("...", out);
+	}
+	fprintf(out, ")");
+
+	const type_t        *result_type = method_type->result_type;
+	if(result_type->type != TYPE_ATOMIC ||
+			((const atomic_type_t*) result_type)->atype != ATOMIC_TYPE_VOID) {
+		fprintf(out, " : ");
+		write_type(result_type);
+	}
+	fputc('\n', out);
+}
+
 void write_fluffy_decls(const translation_unit_t *unit)
 {
 #if 0
@@ -101,41 +323,54 @@ void write_fluffy_decls(const translation_unit_t *unit)
 		exit(1);
 	}
 #endif
-	out = stdout;
+	out            = stdout;
+	global_context = &unit->context;
 
 	fprintf(out, "/* WARNING: Automatically generated file */\n");
 
-	/* write structs + enums */
+	/* write structs,unions + enums */
 	declaration_t *declaration = unit->context.declarations;
-	while(declaration != NULL) {
+	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 */
+			write_union(declaration->symbol, (compound_type_t*) type);
+		} else if(type->type == TYPE_ENUM) {
+			write_enum(declaration->symbol, (enum_type_t*) type);
 		}
-
-		declaration = declaration->next;
 	}
 
 	/* write global variables */
 	declaration = unit->context.declarations;
-	while(declaration != NULL) {
-		if(declaration->storage_class & STORAGE_CLASS_TYPEDEF) {
-			declaration = declaration->next;
+	for( ; declaration != NULL; declaration = declaration->next) {
+		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->type == TYPE_METHOD)
+			continue;
+
+		write_variable(declaration);
+	}
+
+	/* write functions */
+	declaration = unit->context.declarations;
+	for( ; declaration != NULL; declaration = declaration->next) {
+		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)
+			continue;
+
+		write_function(declaration);
 	}
 
 	//fclose(out);