#define ast_istype(x, t) ( (x)->m_node_type == (TYPE_##t) )
-/* Node interface with common components
- */
-typedef void ast_node_delete(ast_node*);
-
struct ast_node
{
- //ast_node() = delete;
- //ast_node(lex_ctx_t, int nodetype);
- //virtual ~ast_node();
+ ast_node() = delete;
+ ast_node(lex_ctx_t, int nodetype);
+ virtual ~ast_node();
lex_ctx_t m_context;
/* I don't feel comfortable using keywords like 'delete' as names... */
- ast_node_delete *m_destroy;
int m_node_type;
/* keep_node: if a node contains this node, 'keep_node'
* prevents its dtor from destroying this node as well.
*/
bool m_keep_node;
bool m_side_effects;
+
+ void propagateSideEffects(const ast_node *other);
};
-#define ast_delete(x) ( (x)->m_destroy((x)) )
#define ast_unref(x) do \
{ \
if (! (x)->m_keep_node ) { \
- ast_delete(x); \
+ delete (x); \
} \
} while(0)
-/* Expression interface
- *
- * Any expression or block returns an ir_value, and needs
- * to know the current function.
- */
-typedef bool ast_expression_codegen(ast_expression*,
- ast_function*,
- bool lvalue,
- ir_value**);
+enum class ast_copy_type_t { value };
+static const ast_copy_type_t ast_copy_type = ast_copy_type_t::value;
+
/* TODO: the codegen function should take an output-type parameter
* indicating whether a variable, type, label etc. is expected, and
* an environment!
* variables through the environment (or functions, constants...).
*/
struct ast_expression : ast_node {
- ast_expression() {}
+ ast_expression() = delete;
+ ast_expression(lex_ctx_t ctx, int nodetype, qc_type vtype);
+ ast_expression(lex_ctx_t ctx, int nodetype);
+ ~ast_expression();
- ast_expression_codegen *m_codegen;
- qc_type m_vtype;
- ast_expression *m_next;
+ ast_expression(ast_copy_type_t, const ast_expression&);
+ ast_expression(ast_copy_type_t, lex_ctx_t ctx, const ast_expression&);
+ ast_expression(ast_copy_type_t, int nodetype, const ast_expression&);
+ ast_expression(ast_copy_type_t, int nodetype, lex_ctx_t ctx, const ast_expression&);
+
+ static ast_expression *shallowType(lex_ctx_t ctx, qc_type vtype);
+
+ bool compareType(const ast_expression &other) const;
+ void adoptType(const ast_expression &other);
+
+ qc_type m_vtype = TYPE_VOID;
+ ast_expression *m_next = nullptr;
/* arrays get a member-count */
- size_t m_count;
- std::vector<ast_value*> m_type_params;
+ size_t m_count = 0;
+ std::vector<std::unique_ptr<ast_value>> m_type_params;
- ast_flag_t m_flags;
+ ast_flag_t m_flags = 0;
/* void foo(string...) gets varparam set as a restriction
* for variadic parameters
*/
- ast_expression *m_varparam;
+ ast_expression *m_varparam = nullptr;
/* The codegen functions should store their output values
* so we can call it multiple times without re-evaluating.
* Store lvalue and rvalue seperately though. So that
* ast_entfield for example can generate both if required.
*/
- ir_value *m_outl;
- ir_value *m_outr;
+ ir_value *m_outl = nullptr;
+ ir_value *m_outr = nullptr;
+
+ virtual bool codegen(ast_function *current, bool lvalue, ir_value **out);
};
/* Value
struct ast_value : ast_expression
{
- const char *m_name;
- const char *m_desc;
+ ast_value() = delete;
+ ast_value(lex_ctx_t ctx, const std::string &name, qc_type qctype);
+ ~ast_value();
+
+ ast_value(ast_copy_type_t, const ast_expression&, const std::string&);
+ ast_value(ast_copy_type_t, const ast_value&);
+ ast_value(ast_copy_type_t, const ast_value&, const std::string&);
- const char *m_argcounter;
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
- int m_cvq; /* const/var qualifier */
- bool m_isfield; /* this declares a field */
- bool m_isimm; /* an immediate, not just const */
- bool m_hasvalue;
- bool m_inexact; /* inexact coming from folded expression */
+ void addParam(ast_value*);
+
+ bool generateGlobal(ir_builder*, bool isfield);
+ bool generateLocal(ir_function*, bool param);
+ bool generateAccessors(ir_builder*);
+
+ std::string m_name;
+ std::string m_desc;
+
+ const char *m_argcounter = nullptr;
+
+ int m_cvq = CV_NONE; /* const/var qualifier */
+ bool m_isfield = false; /* this declares a field */
+ bool m_isimm = false; /* an immediate, not just const */
+ bool m_hasvalue = false;
+ bool m_inexact = false; /* inexact coming from folded expression */
basic_value_t m_constval;
/* for TYPE_ARRAY we have an optional vector
* of constants when an initializer list
std::vector<basic_value_t> m_initlist;
/* usecount for the parser */
- size_t m_uses;
+ size_t m_uses = 0;
- ir_value *m_ir_v;
- ir_value **m_ir_values;
- size_t m_ir_value_count;
+ ir_value *m_ir_v = nullptr;
+ std::vector<ir_value*> m_ir_values;
+ size_t m_ir_value_count = 0;
/* ONLY for arrays in progs version up to 6 */
- ast_value *m_setter;
- ast_value *m_getter;
+ ast_value *m_setter = nullptr;
+ ast_value *m_getter = nullptr;
+ bool m_intrinsic = false; /* true if associated with intrinsic */
- bool m_intrinsic; /* true if associated with intrinsic */
+private:
+ bool generateGlobalFunction(ir_builder*);
+ bool generateGlobalField(ir_builder*);
+ ir_value *prepareGlobalArray(ir_builder*);
+ bool setGlobalArray();
+ bool checkArray(const ast_value &array) const;
};
-ast_value* ast_value_new(lex_ctx_t ctx, const char *name, qc_type 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_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);
+void ast_type_to_string(const ast_expression *e, char *buf, size_t bufsize);
enum ast_binary_ref {
AST_REF_NONE = 0,
*/
struct ast_binary : ast_expression
{
+ ast_binary() = delete;
+ ast_binary(lex_ctx_t ctx, int op, ast_expression *l, ast_expression *r);
+ ~ast_binary();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
int m_op;
ast_expression *m_left;
ast_expression *m_right;
ast_binary_ref m_refs;
bool m_right_first;
};
-ast_binary* ast_binary_new(lex_ctx_t ctx,
- int op,
- ast_expression *left,
- ast_expression *right);
/* Binstore
*
*/
struct ast_binstore : ast_expression
{
+ ast_binstore() = delete;
+ ast_binstore(lex_ctx_t ctx, int storeop, int mathop, ast_expression *l, ast_expression *r);
+ ~ast_binstore();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
int m_opstore;
int m_opbin;
ast_expression *m_dest;
/* for &~= which uses the destination in a binary in source we can use this */
bool m_keep_dest;
};
-ast_binstore* ast_binstore_new(lex_ctx_t ctx,
- int storeop,
- int op,
- ast_expression *left,
- ast_expression *right);
/* Unary
*
*/
struct ast_unary : ast_expression
{
+ ast_unary() = delete;
+ ~ast_unary();
+
+ static ast_unary* make(lex_ctx_t ctx, int op, ast_expression *expr);
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
int m_op;
ast_expression *m_operand;
+
+private:
+ ast_unary(lex_ctx_t ctx, int op, ast_expression *expr);
};
-ast_unary* ast_unary_new(lex_ctx_t ctx,
- int op,
- ast_expression *expr);
/* Return
*
*/
struct ast_return : ast_expression
{
+ ast_return() = delete;
+ ast_return(lex_ctx_t ctx, ast_expression *expr);
+ ~ast_return();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
ast_expression *m_operand;
};
-ast_return* ast_return_new(lex_ctx_t ctx,
- ast_expression *expr);
/* Entity-field
*
*/
struct ast_entfield : ast_expression
{
- /* The entity can come from an expression of course. */
+ ast_entfield() = delete;
+ ast_entfield(lex_ctx_t ctx, ast_expression *entity, ast_expression *field);
+ ast_entfield(lex_ctx_t ctx, ast_expression *entity, ast_expression *field, const ast_expression *outtype);
+ ~ast_entfield();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
+ // The entity can come from an expression of course.
ast_expression *m_entity;
- /* As can the field, it just must result in a value of TYPE_FIELD */
+ // As can the field, it just must result in a value of TYPE_FIELD
ast_expression *m_field;
};
-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 : ast_expression
{
+ static ast_member *make(lex_ctx_t ctx, ast_expression *owner, unsigned int field, const std::string &name);
+ ~ast_member();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
ast_expression *m_owner;
unsigned int m_field;
- const char *m_name;
+ std::string m_name;
bool m_rvalue;
-};
-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);
+private:
+ ast_member() = delete;
+ ast_member(lex_ctx_t ctx, ast_expression *owner, unsigned int field, const std::string &name);
+};
/* Array index access:
*
*/
struct ast_array_index : ast_expression
{
+ static ast_array_index* make(lex_ctx_t ctx, ast_expression *array, ast_expression *index);
+ ~ast_array_index();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
ast_expression *m_array;
ast_expression *m_index;
+private:
+ ast_array_index() = delete;
+ ast_array_index(lex_ctx_t ctx, ast_expression *array, ast_expression *index);
};
-ast_array_index* ast_array_index_new(lex_ctx_t ctx, ast_expression *array, ast_expression *index);
/* Vararg pipe node:
*
*/
struct ast_argpipe : ast_expression
{
+ ast_argpipe() = delete;
+ ast_argpipe(lex_ctx_t ctx, ast_expression *index);
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
+ ~ast_argpipe();
ast_expression *m_index;
};
-ast_argpipe* ast_argpipe_new(lex_ctx_t ctx, ast_expression *index);
/* Store
*
*/
struct ast_store : ast_expression
{
+ ast_store() = delete;
+ ast_store(lex_ctx_t ctx, int op, ast_expression *d, ast_expression *s);
+ ~ast_store();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
int m_op;
ast_expression *m_dest;
ast_expression *m_source;
};
-ast_store* ast_store_new(lex_ctx_t ctx, int op,
- ast_expression *d, ast_expression *s);
/* If
*
*/
struct ast_ifthen : ast_expression
{
+ ast_ifthen() = delete;
+ ast_ifthen(lex_ctx_t ctx, ast_expression *cond, ast_expression *ontrue, ast_expression *onfalse);
+ ~ast_ifthen();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
ast_expression *m_cond;
/* It's all just 'expressions', since an ast_block is one too. */
ast_expression *m_on_true;
ast_expression *m_on_false;
};
-ast_ifthen* ast_ifthen_new(lex_ctx_t ctx, ast_expression *cond, ast_expression *ontrue, ast_expression *onfalse);
/* Ternary expressions...
*
*/
struct ast_ternary : ast_expression
{
+ ast_ternary() = delete;
+ ast_ternary(lex_ctx_t ctx, ast_expression *cond, ast_expression *ontrue, ast_expression *onfalse);
+ ~ast_ternary();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
ast_expression *m_cond;
/* It's all just 'expressions', since an ast_block is one too. */
ast_expression *m_on_true;
ast_expression *m_on_false;
};
-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 : ast_expression
{
+ ast_loop() = delete;
+ ast_loop(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);
+ ~ast_loop();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
ast_expression *m_initexpr;
ast_expression *m_precond;
ast_expression *m_postcond;
bool m_pre_not;
bool m_post_not;
};
-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);
/* Break/Continue
*/
struct ast_breakcont : ast_expression
{
+ ast_breakcont() = delete;
+ ast_breakcont(lex_ctx_t ctx, bool iscont, unsigned int levels);
+ ~ast_breakcont();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
+
bool m_is_continue;
unsigned int m_levels;
};
-ast_breakcont* ast_breakcont_new(lex_ctx_t ctx, bool iscont, unsigned int levels);
/* Switch Statements
*
struct ast_switch : ast_expression
{
+ ast_switch() = delete;
+ ast_switch(lex_ctx_t ctx, ast_expression *op);
+ ~ast_switch();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
ast_expression *m_operand;
std::vector<ast_switch_case> m_cases;
};
-ast_switch* ast_switch_new(lex_ctx_t ctx, ast_expression *op);
/* Label nodes
*
*/
struct ast_label : ast_expression
{
- const char *m_name;
+ ast_label() = delete;
+ ast_label(lex_ctx_t ctx, const std::string &name, bool undefined);
+ ~ast_label();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
+ std::string m_name;
ir_block *m_irblock;
std::vector<ast_goto*> m_gotos;
/* means it has not yet been defined */
bool m_undefined;
-};
-ast_label* ast_label_new(lex_ctx_t ctx, const char *name, bool undefined);
+private:
+ void registerGoto(ast_goto*);
+ friend struct ast_goto;
+};
/* GOTO nodes
*
*/
struct ast_goto : ast_expression
{
- const char *m_name;
+ ast_goto() = delete;
+ ast_goto(lex_ctx_t ctx, const std::string &name);
+ ~ast_goto();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
+ void setLabel(ast_label*);
+
+ std::string m_name;
ast_label *m_target;
ir_block *m_irblock_from;
};
-ast_goto* ast_goto_new(lex_ctx_t ctx, const char *name);
-void ast_goto_set_label(ast_goto*, ast_label*);
-
/* STATE node
*
* For frame/think state updates: void foo() [framenum, nextthink] {}
*/
struct ast_state : ast_expression
{
+ ast_state() = delete;
+ ast_state(lex_ctx_t ctx, ast_expression *frame, ast_expression *think);
+ ~ast_state();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
ast_expression *m_framenum;
ast_expression *m_nextthink;
};
-ast_state* ast_state_new(lex_ctx_t ctx, ast_expression *frame, ast_expression *think);
-void ast_state_delete(ast_state*);
/* CALL node
*
*/
struct ast_call : ast_expression
{
+ ast_call() = delete;
+ static ast_call *make(lex_ctx_t, ast_expression*);
+ ~ast_call();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
+ bool checkTypes(ast_expression *this_func_va_type) const;
+
ast_expression *m_func;
std::vector<ast_expression *> m_params;
ast_expression *m_va_count;
+
+private:
+ ast_call(lex_ctx_t ctx, ast_expression *funcexpr);
+ bool checkVararg(ast_expression *va_type, ast_expression *exp_type) const;
};
-ast_call* ast_call_new(lex_ctx_t ctx,
- ast_expression *funcexpr);
-bool ast_call_check_types(ast_call*, ast_expression *this_func_va_type);
/* Blocks
*
*/
struct ast_block : ast_expression
{
+ ast_block() = delete;
+ ast_block(lex_ctx_t ctx);
+ ~ast_block();
+
+ bool codegen(ast_function *current, bool lvalue, ir_value **out) override;
+
std::vector<ast_value*> m_locals;
std::vector<ast_expression*> m_exprs;
std::vector<ast_expression*> m_collect;
-};
-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);
-void ast_block_collect(ast_block*, ast_expression*);
-bool GMQCC_WARN ast_block_add_expr(ast_block*, ast_expression*);
+ void setType(const ast_expression &from);
+ bool GMQCC_WARN addExpr(ast_expression*);
+ void collect(ast_expression*);
+};
/* Function
*
* neither functions inside functions, nor lambdas, and function
* pointers could just work with a name. However, this way could be
* more flexible, and adds no real complexity.
+ *
+ * The destructor will NOT delete the underlying ast_value
+ *
*/
struct ast_function : ast_node
{
- ast_value *m_function_type;
- const char *m_name;
+ ast_function() = delete;
+ static ast_function *make(lex_ctx_t ctx, const std::string &name, ast_value *vtype);
+ ~ast_function();
+
+ const char* makeLabel(const char *prefix);
+ virtual bool generateFunction(ir_builder*);
- int m_builtin;
+ ast_value *m_function_type = nullptr;
+ std::string m_name;
+
+ int m_builtin = 0;
/* list of used-up names for statics without the count suffix */
- std::vector<char*> m_static_names;
+ std::vector<std::string> m_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 m_static_count;
+ unsigned int m_static_count = 0;
- ir_function *m_ir_func;
- ir_block *m_curblock;
+ ir_function *m_ir_func = nullptr;
+ ir_block *m_curblock = nullptr;
std::vector<ir_block*> m_breakblocks;
std::vector<ir_block*> m_continueblocks;
- size_t m_labelcount;
+ size_t m_labelcount = 0;
/* in order for thread safety - for the optional
* channel abesed multithreading... keeping a buffer
* here to use in ast_function_label.
*/
- char m_labelbuf[64];
std::vector<std::unique_ptr<ast_block>> m_blocks;
- ast_value *m_varargs;
- ast_value *m_argc;
- ast_value *m_fixedparams;
- ast_value *m_return_value;
-};
-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"...
- * or whatever...
- */
-const char* ast_function_label(ast_function*, const char *prefix);
+ std::unique_ptr<ast_value> m_varargs;
+ std::unique_ptr<ast_value> m_argc;
+ ast_value *m_fixedparams = nullptr; // these use unref()
+ ast_value *m_return_value = nullptr;
+
+private:
+ ast_function(lex_ctx_t ctx, const std::string &name, ast_value *vtype);
-bool ast_function_codegen(ast_function *self, ir_builder *builder);
-bool ast_generate_accessors(ast_value *asvalue, ir_builder *ir);
+ char m_labelbuf[64];
+};
/*
* If the condition creates a situation where this becomes -1 size it means there are
projects / xonotic / gmqcc.git / blobdiff