X-Git-Url: https://git.xonotic.org/?p=xonotic%2Fgmqcc.git;a=blobdiff_plain;f=ast.h;h=5b556e1be52912e44a554c1b4e99a4d059b3097b;hp=ca323a218c041c9e7a4bdbe706a1e33c1bc9c1a4;hb=ff37abb0c7c60481e1264914fa5e02e9986c5cd9;hpb=10b75fd8b9ebc7ea6dbfd802dde13af4ec4c2414 diff --git a/ast.h b/ast.h index ca323a2..5b556e1 100644 --- a/ast.h +++ b/ast.h @@ -1,5 +1,5 @@ /* - * Copyright (C) 2012, 2013 + * Copyright (C) 2012, 2013, 2014, 2015 * Wolfgang Bumiller * Dale Weiler * @@ -25,6 +25,8 @@ #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. */ @@ -52,6 +54,41 @@ 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; +typedef struct ast_state_s ast_state; + +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 */ @@ -75,7 +112,8 @@ enum { TYPE_ast_switch, /* 18 */ TYPE_ast_label, /* 19 */ TYPE_ast_goto, /* 20 */ - TYPE_ast_argpipe /* 21 */ + TYPE_ast_argpipe, /* 21 */ + TYPE_ast_state /* 22 */ }; #define ast_istype(x, t) ( ((ast_node*)x)->nodetype == (TYPE_##t) ) @@ -134,7 +172,7 @@ struct ast_expression_common /* 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 */ @@ -147,18 +185,6 @@ struct ast_expression_common ir_value *outl; ir_value *outr; }; -#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) -/* An array declared as [] - * so that the size is taken from the initializer */ -#define AST_FLAG_ARRAY_INIT (1<<8) -#define AST_FLAG_TYPE_MASK (AST_FLAG_VARIADIC | AST_FLAG_NORETURN) /* Value * @@ -168,7 +194,7 @@ struct ast_expression_common * is like creating a 'float foo', foo serving as the type's name. */ typedef union { - double vfloat; + qcfloat_t vfloat; int vint; vec3_t vvec; const char *vstring; @@ -176,6 +202,7 @@ typedef union { ast_function *vfunc; ast_value *vfield; } basic_value_t; + struct ast_value_s { ast_expression expression; @@ -189,6 +216,7 @@ struct ast_value_s 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 @@ -206,6 +234,9 @@ struct ast_value_s /* 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_t ctx, const char *name, int qctype); @@ -250,7 +281,7 @@ struct ast_binary_s ast_expression *left; ast_expression *right; ast_binary_ref refs; - + bool right_first; }; ast_binary* ast_binary_new(lex_ctx_t ctx, int op, @@ -339,7 +370,7 @@ ast_entfield* ast_entfield_new_force(lex_ctx_t ctx, ast_expression *entity, ast_ */ struct ast_member_s { - ast_expression expression; + ast_expression expression; ast_expression *owner; unsigned int field; const char *name; @@ -362,7 +393,7 @@ bool ast_member_set_name(ast_member*, const char *name); */ struct ast_array_index_s { - ast_expression expression; + ast_expression expression; ast_expression *array; ast_expression *index; }; @@ -374,7 +405,7 @@ ast_array_index* ast_array_index_new(lex_ctx_t ctx, ast_expression *array, ast_e */ struct ast_argpipe_s { - ast_expression expression; + ast_expression expression; ast_expression *index; }; ast_argpipe* ast_argpipe_new(lex_ctx_t ctx, ast_expression *index); @@ -386,7 +417,7 @@ ast_argpipe* ast_argpipe_new(lex_ctx_t ctx, ast_expression *index); */ struct ast_store_s { - ast_expression expression; + ast_expression expression; int op; ast_expression *dest; ast_expression *source; @@ -407,7 +438,7 @@ ast_store* ast_store_new(lex_ctx_t ctx, int op, */ struct ast_ifthen_s { - ast_expression expression; + ast_expression expression; ast_expression *cond; /* It's all just 'expressions', since an ast_block is one too. */ ast_expression *on_true; @@ -430,7 +461,7 @@ ast_ifthen* ast_ifthen_new(lex_ctx_t ctx, ast_expression *cond, ast_expression * */ struct ast_ternary_s { - ast_expression expression; + ast_expression expression; ast_expression *cond; /* It's all just 'expressions', since an ast_block is one too. */ ast_expression *on_true; @@ -463,7 +494,7 @@ continue: // a 'continue' will jump here */ struct ast_loop_s { - ast_expression expression; + ast_expression expression; ast_expression *initexpr; ast_expression *precond; ast_expression *postcond; @@ -489,9 +520,9 @@ ast_loop* ast_loop_new(lex_ctx_t ctx, */ struct ast_breakcont_s { - ast_expression expression; - bool is_continue; - unsigned int levels; + ast_expression expression; + bool is_continue; + unsigned int levels; }; ast_breakcont* ast_breakcont_new(lex_ctx_t ctx, bool iscont, unsigned int levels); @@ -511,7 +542,7 @@ typedef struct { } ast_switch_case; struct ast_switch_s { - ast_expression expression; + ast_expression expression; ast_expression *operand; ast_switch_case *cases; @@ -525,12 +556,13 @@ ast_switch* ast_switch_new(lex_ctx_t ctx, ast_expression *op); */ struct ast_label_s { - ast_expression 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_t ctx, const char *name, bool undefined); @@ -541,15 +573,28 @@ ast_label* ast_label_new(lex_ctx_t ctx, const char *name, bool undefined); */ struct ast_goto_s { - ast_expression 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_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_s +{ + ast_expression expression; + ast_expression *framenum; + ast_expression *nextthink; +}; +ast_state* ast_state_new(lex_ctx_t ctx, ast_expression *frame, ast_expression *think); +void ast_state_delete(ast_state*); + /* CALL node * * Contains an ast_expression as target, rather than an ast_function/value. @@ -562,9 +607,9 @@ void ast_goto_set_label(ast_goto*, ast_label*); */ struct ast_call_s { - ast_expression expression; + ast_expression expression; ast_expression *func; - ast_expression* *params; + ast_expression **params; ast_expression *va_count; }; ast_call* ast_call_new(lex_ctx_t ctx, @@ -576,7 +621,7 @@ bool ast_call_check_types(ast_call*, ast_expression *this_func_va_type); */ struct ast_block_s { - ast_expression expression; + ast_expression expression; ast_value* *locals; ast_expression* *exprs; @@ -601,13 +646,21 @@ bool GMQCC_WARN ast_block_add_expr(ast_block*, ast_expression*); */ struct ast_function_s { - ast_node 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; @@ -647,4 +700,11 @@ const char* ast_function_label(ast_function*, const char *prefix); bool ast_function_codegen(ast_function *self, ir_builder *builder); bool ast_generate_accessors(ast_value *asvalue, ir_builder *ir); +/* + * 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. + */ +typedef int static_assert_is_ast_flag_safe [((AST_FLAG_LAST) <= (ast_flag_t)(-1)) ? 1 : -1]; #endif