/*
- * Copyright (C) 2012, 2013
+ * Copyright (C) 2012, 2013, 2014
* Wolfgang Bumiller
+ * Dale Weiler
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
#define GMQCC_AST_HDR
#include "ir.h"
+typedef uint16_t ast_flag_t;
+
/* Note: I will not be using a _t suffix for the
* "main" ast node types for now.
*/
-typedef union ast_node_u ast_node;
-typedef union ast_expression_u ast_expression;
+typedef struct ast_node_common ast_node;
+typedef struct ast_expression_common ast_expression;
typedef struct ast_value_s ast_value;
typedef struct ast_function_s ast_function;
typedef struct ast_switch_s ast_switch;
typedef struct ast_label_s ast_label;
typedef struct ast_goto_s ast_goto;
+typedef struct ast_argpipe_s ast_argpipe;
+
+enum {
+ AST_FLAG_VARIADIC = 1 << 0,
+ AST_FLAG_NORETURN = 1 << 1,
+ AST_FLAG_INLINE = 1 << 2,
+ AST_FLAG_INITIALIZED = 1 << 3,
+ AST_FLAG_DEPRECATED = 1 << 4,
+ AST_FLAG_INCLUDE_DEF = 1 << 5,
+ AST_FLAG_IS_VARARG = 1 << 6,
+ AST_FLAG_ALIAS = 1 << 7,
+ AST_FLAG_ERASEABLE = 1 << 8,
+ AST_FLAG_ACCUMULATE = 1 << 9,
+
+ /* An array declared as []
+ * so that the size is taken from the initializer
+ */
+ AST_FLAG_ARRAY_INIT = 1 << 10,
+
+ AST_FLAG_FINAL_DECL = 1 << 11,
+
+ /* Several coverage options
+ * AST_FLAG_COVERAGE means there was an explicit [[coverage]] attribute,
+ * which will overwrite the default set via the commandline switches.
+ * BLOCK_COVERAGE inserts coverage() calls into every basic block.
+ * In the future there might be more options like tracking variable access
+ * by creating get/set wrapper functions.
+ */
+ AST_FLAG_COVERAGE = 1 << 12,
+ AST_FLAG_BLOCK_COVERAGE = 1 << 13,
+
+ AST_FLAG_LAST,
+ AST_FLAG_TYPE_MASK = (AST_FLAG_VARIADIC | AST_FLAG_NORETURN),
+ AST_FLAG_COVERAGE_MASK = (AST_FLAG_BLOCK_COVERAGE)
+};
enum {
TYPE_ast_node, /* 0 */
TYPE_ast_breakcont, /* 17 */
TYPE_ast_switch, /* 18 */
TYPE_ast_label, /* 19 */
- TYPE_ast_goto /* 20 */
+ TYPE_ast_goto, /* 20 */
+ TYPE_ast_argpipe /* 21 */
};
-#define ast_istype(x, t) ( ((ast_node_common*)x)->nodetype == (TYPE_##t) )
-#define ast_ctx(node) (((ast_node_common*)(node))->context)
-#define ast_side_effects(node) (((ast_node_common*)(node))->side_effects)
+#define ast_istype(x, t) ( ((ast_node*)x)->nodetype == (TYPE_##t) )
+#define ast_ctx(node) (((ast_node*)(node))->context)
+#define ast_side_effects(node) (((ast_node*)(node))->side_effects)
/* Node interface with common components
*/
typedef void ast_node_delete(ast_node*);
-typedef struct
+struct ast_node_common
{
- lex_ctx context;
+ lex_ctx_t context;
/* I don't feel comfortable using keywords like 'delete' as names... */
ast_node_delete *destroy;
int nodetype;
*/
bool keep;
bool side_effects;
-} ast_node_common;
-
-#define ast_delete(x) (*( ((ast_node*)(x))->node.destroy ))((ast_node*)(x))
-#define ast_unref(x) do \
-{ \
- if (! (((ast_node*)(x))->node.keep) ) { \
- ast_delete(x); \
- } \
+};
+
+#define ast_delete(x) (*( ((ast_node*)(x))->destroy ))((ast_node*)(x))
+#define ast_unref(x) do \
+{ \
+ if (! (((ast_node*)(x))->keep) ) { \
+ ast_delete(x); \
+ } \
} while(0)
/* Expression interface
* type `expression`, so the ast_ident's codegen would search for
* variables through the environment (or functions, constants...).
*/
-typedef struct
+struct ast_expression_common
{
- ast_node_common node;
+ ast_node node;
ast_expression_codegen *codegen;
int vtype;
ast_expression *next;
/* arrays get a member-count */
size_t count;
ast_value* *params;
- uint32_t flags;
+ ast_flag_t flags;
/* void foo(string...) gets varparam set as a restriction
* for variadic parameters
*/
*/
ir_value *outl;
ir_value *outr;
-} ast_expression_common;
-#define AST_FLAG_VARIADIC (1<<0)
-#define AST_FLAG_NORETURN (1<<1)
-#define AST_FLAG_INLINE (1<<2)
-#define AST_FLAG_INITIALIZED (1<<3)
-#define AST_FLAG_DEPRECATED (1<<4)
-#define AST_FLAG_INCLUDE_DEF (1<<5)
-#define AST_FLAG_IS_VARARG (1<<6)
-#define AST_FLAG_ALIAS (1<<7)
-#define AST_FLAG_TYPE_MASK (AST_FLAG_VARIADIC | AST_FLAG_NORETURN)
+};
/* Value
*
* is like creating a 'float foo', foo serving as the type's name.
*/
typedef union {
- double vfloat;
+ qcfloat_t vfloat;
int vint;
- vector vvec;
+ vec3_t vvec;
const char *vstring;
int ventity;
ast_function *vfunc;
ast_value *vfield;
} basic_value_t;
+
struct ast_value_s
{
- ast_expression_common expression;
+ ast_expression expression;
const char *name;
const char *desc;
const char *argcounter;
- /*
- int vtype;
- ast_value *next;
- */
-
int cvq; /* const/var qualifier */
bool isfield; /* this declares a field */
bool isimm; /* an immediate, not just const */
bool hasvalue;
+ bool inexact; /* inexact coming from folded expression */
basic_value_t constval;
/* for TYPE_ARRAY we have an optional vector
* of constants when an initializer list
/* ONLY for arrays in progs version up to 6 */
ast_value *setter;
ast_value *getter;
+
+
+ bool intrinsic; /* true if associated with intrinsic */
};
-ast_value* ast_value_new(lex_ctx ctx, const char *name, int qctype);
+ast_value* ast_value_new(lex_ctx_t ctx, const char *name, int qctype);
ast_value* ast_value_copy(const ast_value *self);
/* This will NOT delete an underlying ast_function */
void ast_value_delete(ast_value*);
bool ast_value_set_name(ast_value*, const char *name);
+/*
bool ast_value_codegen(ast_value*, ast_function*, bool lvalue, ir_value**);
bool ast_local_codegen(ast_value *self, ir_function *func, bool isparam);
+*/
+
bool ast_global_codegen(ast_value *self, ir_builder *ir, bool isfield);
void ast_value_params_add(ast_value*, ast_value*);
bool ast_compare_type(ast_expression *a, ast_expression *b);
-ast_expression* ast_type_copy(lex_ctx ctx, const ast_expression *ex);
+ast_expression* ast_type_copy(lex_ctx_t ctx, const ast_expression *ex);
#define ast_type_adopt(a, b) ast_type_adopt_impl((ast_expression*)(a), (ast_expression*)(b))
void ast_type_adopt_impl(ast_expression *self, const ast_expression *other);
void ast_type_to_string(ast_expression *e, char *buf, size_t bufsize);
typedef enum ast_binary_ref_s {
+ AST_REF_NONE = 0,
AST_REF_LEFT = 1 << 1,
AST_REF_RIGHT = 1 << 2,
AST_REF_ALL = (AST_REF_LEFT | AST_REF_RIGHT)
*/
struct ast_binary_s
{
- ast_expression_common expression;
+ ast_expression expression;
int op;
ast_expression *left;
ast_expression *right;
ast_binary_ref refs;
-
+ bool right_first;
};
-ast_binary* ast_binary_new(lex_ctx ctx,
+ast_binary* ast_binary_new(lex_ctx_t ctx,
int op,
ast_expression *left,
ast_expression *right);
-void ast_binary_delete(ast_binary*);
-
-bool ast_binary_codegen(ast_binary*, ast_function*, bool lvalue, ir_value**);
/* Binstore
*
*/
struct ast_binstore_s
{
- ast_expression_common expression;
+ ast_expression expression;
int opstore;
int opbin;
/* for &~= which uses the destination in a binary in source we can use this */
bool keep_dest;
};
-ast_binstore* ast_binstore_new(lex_ctx ctx,
+ast_binstore* ast_binstore_new(lex_ctx_t ctx,
int storeop,
int op,
ast_expression *left,
ast_expression *right);
-void ast_binstore_delete(ast_binstore*);
-
-bool ast_binstore_codegen(ast_binstore*, ast_function*, bool lvalue, ir_value**);
/* Unary
*
*/
struct ast_unary_s
{
- ast_expression_common expression;
+ ast_expression expression;
int op;
ast_expression *operand;
};
-ast_unary* ast_unary_new(lex_ctx ctx,
+ast_unary* ast_unary_new(lex_ctx_t ctx,
int op,
ast_expression *expr);
-void ast_unary_delete(ast_unary*);
-
-bool ast_unary_codegen(ast_unary*, ast_function*, bool lvalue, ir_value**);
/* Return
*
*/
struct ast_return_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *operand;
};
-ast_return* ast_return_new(lex_ctx ctx,
+ast_return* ast_return_new(lex_ctx_t ctx,
ast_expression *expr);
-void ast_return_delete(ast_return*);
-
-bool ast_return_codegen(ast_return*, ast_function*, bool lvalue, ir_value**);
/* Entity-field
*
*/
struct ast_entfield_s
{
- ast_expression_common expression;
+ ast_expression expression;
/* The entity can come from an expression of course. */
ast_expression *entity;
/* As can the field, it just must result in a value of TYPE_FIELD */
ast_expression *field;
};
-ast_entfield* ast_entfield_new(lex_ctx ctx, ast_expression *entity, ast_expression *field);
-ast_entfield* ast_entfield_new_force(lex_ctx ctx, ast_expression *entity, ast_expression *field, const ast_expression *outtype);
-void ast_entfield_delete(ast_entfield*);
-
-bool ast_entfield_codegen(ast_entfield*, ast_function*, bool lvalue, ir_value**);
+ast_entfield* ast_entfield_new(lex_ctx_t ctx, ast_expression *entity, ast_expression *field);
+ast_entfield* ast_entfield_new_force(lex_ctx_t ctx, ast_expression *entity, ast_expression *field, const ast_expression *outtype);
/* Member access:
*
*/
struct ast_member_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *owner;
unsigned int field;
const char *name;
bool rvalue;
};
-ast_member* ast_member_new(lex_ctx ctx, ast_expression *owner, unsigned int field, const char *name);
+ast_member* ast_member_new(lex_ctx_t ctx, ast_expression *owner, unsigned int field, const char *name);
void ast_member_delete(ast_member*);
bool ast_member_set_name(ast_member*, const char *name);
-bool ast_member_codegen(ast_member*, ast_function*, bool lvalue, ir_value**);
/* Array index access:
*
*/
struct ast_array_index_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *array;
ast_expression *index;
};
-ast_array_index* ast_array_index_new(lex_ctx ctx, ast_expression *array, ast_expression *index);
-void ast_array_index_delete(ast_array_index*);
+ast_array_index* ast_array_index_new(lex_ctx_t ctx, ast_expression *array, ast_expression *index);
-bool ast_array_index_codegen(ast_array_index*, ast_function*, bool lvalue, ir_value**);
+/* Vararg pipe node:
+ *
+ * copy all varargs starting from a specific index
+ */
+struct ast_argpipe_s
+{
+ ast_expression expression;
+ ast_expression *index;
+};
+ast_argpipe* ast_argpipe_new(lex_ctx_t ctx, ast_expression *index);
/* Store
*
*/
struct ast_store_s
{
- ast_expression_common expression;
+ ast_expression expression;
int op;
ast_expression *dest;
ast_expression *source;
};
-ast_store* ast_store_new(lex_ctx ctx, int op,
+ast_store* ast_store_new(lex_ctx_t ctx, int op,
ast_expression *d, ast_expression *s);
-void ast_store_delete(ast_store*);
-
-bool ast_store_codegen(ast_store*, ast_function*, bool lvalue, ir_value**);
/* If
*
*/
struct ast_ifthen_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *cond;
/* It's all just 'expressions', since an ast_block is one too. */
ast_expression *on_true;
ast_expression *on_false;
};
-ast_ifthen* ast_ifthen_new(lex_ctx ctx, ast_expression *cond, ast_expression *ontrue, ast_expression *onfalse);
-void ast_ifthen_delete(ast_ifthen*);
-
-bool ast_ifthen_codegen(ast_ifthen*, ast_function*, bool lvalue, ir_value**);
+ast_ifthen* ast_ifthen_new(lex_ctx_t ctx, ast_expression *cond, ast_expression *ontrue, ast_expression *onfalse);
/* Ternary expressions...
*
*/
struct ast_ternary_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *cond;
/* It's all just 'expressions', since an ast_block is one too. */
ast_expression *on_true;
ast_expression *on_false;
};
-ast_ternary* ast_ternary_new(lex_ctx ctx, ast_expression *cond, ast_expression *ontrue, ast_expression *onfalse);
-void ast_ternary_delete(ast_ternary*);
-
-bool ast_ternary_codegen(ast_ternary*, ast_function*, bool lvalue, ir_value**);
+ast_ternary* ast_ternary_new(lex_ctx_t ctx, ast_expression *cond, ast_expression *ontrue, ast_expression *onfalse);
/* A general loop node
*
*/
struct ast_loop_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *initexpr;
ast_expression *precond;
ast_expression *postcond;
bool pre_not;
bool post_not;
};
-ast_loop* ast_loop_new(lex_ctx ctx,
+ast_loop* ast_loop_new(lex_ctx_t ctx,
ast_expression *initexpr,
ast_expression *precond, bool pre_not,
ast_expression *postcond, bool post_not,
ast_expression *increment,
ast_expression *body);
-void ast_loop_delete(ast_loop*);
-
-bool ast_loop_codegen(ast_loop*, ast_function*, bool lvalue, ir_value**);
/* Break/Continue
*/
struct ast_breakcont_s
{
- ast_expression_common expression;
- bool is_continue;
- unsigned int levels;
+ ast_expression expression;
+ bool is_continue;
+ unsigned int levels;
};
-ast_breakcont* ast_breakcont_new(lex_ctx ctx, bool iscont, unsigned int levels);
-void ast_breakcont_delete(ast_breakcont*);
-
-bool ast_breakcont_codegen(ast_breakcont*, ast_function*, bool lvalue, ir_value**);
+ast_breakcont* ast_breakcont_new(lex_ctx_t ctx, bool iscont, unsigned int levels);
/* Switch Statements
*
} ast_switch_case;
struct ast_switch_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *operand;
ast_switch_case *cases;
};
-ast_switch* ast_switch_new(lex_ctx ctx, ast_expression *op);
-void ast_switch_delete(ast_switch*);
-
-bool ast_switch_codegen(ast_switch*, ast_function*, bool lvalue, ir_value**);
+ast_switch* ast_switch_new(lex_ctx_t ctx, ast_expression *op);
/* Label nodes
*
*/
struct ast_label_s
{
- ast_expression_common expression;
- const char *name;
- ir_block *irblock;
- ast_goto **gotos;
+ ast_expression expression;
+ const char *name;
+ ir_block *irblock;
+ ast_goto **gotos;
+
/* means it has not yet been defined */
- bool undefined;
+ bool undefined;
};
-ast_label* ast_label_new(lex_ctx ctx, const char *name, bool undefined);
-void ast_label_delete(ast_label*);
-void ast_label_register_goto(ast_label*, ast_goto*);
-
-bool ast_label_codegen(ast_label*, ast_function*, bool lvalue, ir_value**);
+ast_label* ast_label_new(lex_ctx_t ctx, const char *name, bool undefined);
/* GOTO nodes
*
*/
struct ast_goto_s
{
- ast_expression_common expression;
- const char *name;
- ast_label *target;
- ir_block *irblock_from;
+ ast_expression expression;
+ const char *name;
+ ast_label *target;
+ ir_block *irblock_from;
};
-ast_goto* ast_goto_new(lex_ctx ctx, const char *name);
-void ast_goto_delete(ast_goto*);
+ast_goto* ast_goto_new(lex_ctx_t ctx, const char *name);
void ast_goto_set_label(ast_goto*, ast_label*);
-bool ast_goto_codegen(ast_goto*, ast_function*, bool lvalue, ir_value**);
-
/* CALL node
*
* Contains an ast_expression as target, rather than an ast_function/value.
*/
struct ast_call_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_expression *func;
- ast_expression* *params;
+ ast_expression **params;
ast_expression *va_count;
};
-ast_call* ast_call_new(lex_ctx ctx,
+ast_call* ast_call_new(lex_ctx_t ctx,
ast_expression *funcexpr);
-void ast_call_delete(ast_call*);
-bool ast_call_codegen(ast_call*, ast_function*, bool lvalue, ir_value**);
-bool ast_call_check_types(ast_call*);
+bool ast_call_check_types(ast_call*, ast_expression *this_func_va_type);
/* Blocks
*
*/
struct ast_block_s
{
- ast_expression_common expression;
+ ast_expression expression;
ast_value* *locals;
ast_expression* *exprs;
ast_expression* *collect;
};
-ast_block* ast_block_new(lex_ctx ctx);
+ast_block* ast_block_new(lex_ctx_t ctx);
void ast_block_delete(ast_block*);
void ast_block_set_type(ast_block*, ast_expression *from);
-
-bool ast_block_codegen(ast_block*, ast_function*, bool lvalue, ir_value**);
void ast_block_collect(ast_block*, ast_expression*);
bool GMQCC_WARN ast_block_add_expr(ast_block*, ast_expression*);
*/
struct ast_function_s
{
- ast_node_common node;
+ ast_node node;
ast_value *vtype;
const char *name;
int builtin;
+ /* list of used-up names for statics without the count suffix */
+ char **static_names;
+ /* number of static variables, by convention this includes the
+ * ones without the count-suffix - remember this when dealing
+ * with savegames. uint instead of size_t as %zu in printf is
+ * C99, so no windows support. */
+ unsigned int static_count;
+
ir_function *ir_func;
ir_block *curblock;
ir_block **breakblocks;
ast_value *varargs;
ast_value *argc;
ast_value *fixedparams;
+ ast_value *return_value;
};
-ast_function* ast_function_new(lex_ctx ctx, const char *name, ast_value *vtype);
+ast_function* ast_function_new(lex_ctx_t ctx, const char *name, ast_value *vtype);
/* This will NOT delete the underlying ast_value */
void ast_function_delete(ast_function*);
/* For "optimized" builds this can just keep returning "foo"...
bool ast_function_codegen(ast_function *self, ir_builder *builder);
bool ast_generate_accessors(ast_value *asvalue, ir_builder *ir);
-/* Expression union
- */
-union ast_expression_u
-{
- ast_expression_common expression;
-
- ast_value value;
- ast_binary binary;
- ast_block block;
- ast_ternary ternary;
- ast_ifthen ifthen;
- ast_store store;
- ast_entfield entfield;
-};
-
-/* Node union
+/*
+ * If the condition creates a situation where this becomes -1 size it means there are
+ * more AST_FLAGs than the type ast_flag_t is capable of holding. So either eliminate
+ * the AST flag count or change the ast_flag_t typedef to a type large enough to accomodate
+ * all the flags.
*/
-union ast_node_u
-{
- ast_node_common node;
- ast_expression expression;
-};
-
+typedef int static_assert_is_ast_flag_safe [((AST_FLAG_LAST) <= (ast_flag_t)(-1)) ? 1 : -1];
#endif
projects / xonotic / gmqcc.git / blobdiff