1 /* 2 * Ecmascript execution, support primitives. 3 */ 4 5 #ifndef DUK_JS_H_INCLUDED 6 #define DUK_JS_H_INCLUDED 7 8 /* Flags for call handling. */ 9 #define DUK_CALL_FLAG_IGNORE_RECLIMIT (1 << 0) /* duk_handle_call_xxx: call ignores C recursion limit (for errhandler calls) */ 10 #define DUK_CALL_FLAG_CONSTRUCTOR_CALL (1 << 1) /* duk_handle_call_xxx: constructor call (i.e. called as 'new Foo()') */ 11 #define DUK_CALL_FLAG_IS_RESUME (1 << 2) /* duk_handle_ecma_call_setup: setup for a resume() */ 12 #define DUK_CALL_FLAG_IS_TAILCALL (1 << 3) /* duk_handle_ecma_call_setup: setup for a tail call */ 13 #define DUK_CALL_FLAG_DIRECT_EVAL (1 << 4) /* call is a direct eval call */ 14 15 /* Flags for duk_js_equals_helper(). */ 16 #define DUK_EQUALS_FLAG_SAMEVALUE (1 << 0) /* use SameValue instead of non-strict equality */ 17 #define DUK_EQUALS_FLAG_STRICT (1 << 1) /* use strict equality instead of non-strict equality */ 18 19 /* Flags for duk_js_compare_helper(). */ 20 #define DUK_COMPARE_FLAG_EVAL_LEFT_FIRST (1 << 0) /* eval left argument first */ 21 #define DUK_COMPARE_FLAG_NEGATE (1 << 1) /* negate result */ 22 23 /* conversions, coercions, comparison, etc */ 24 DUK_INTERNAL_DECL duk_bool_t duk_js_toboolean(duk_tval *tv); 25 DUK_INTERNAL_DECL duk_double_t duk_js_tonumber(duk_hthread *thr, duk_tval *tv); 26 DUK_INTERNAL_DECL duk_double_t duk_js_tointeger_number(duk_double_t x); 27 DUK_INTERNAL_DECL duk_double_t duk_js_tointeger(duk_hthread *thr, duk_tval *tv); 28 DUK_INTERNAL_DECL duk_uint32_t duk_js_touint32(duk_hthread *thr, duk_tval *tv); 29 DUK_INTERNAL_DECL duk_int32_t duk_js_toint32(duk_hthread *thr, duk_tval *tv); 30 DUK_INTERNAL_DECL duk_uint16_t duk_js_touint16(duk_hthread *thr, duk_tval *tv); 31 DUK_INTERNAL_DECL duk_small_int_t duk_js_to_arrayindex_raw_string(const duk_uint8_t *str, duk_uint32_t blen, duk_uarridx_t *out_idx); 32 DUK_INTERNAL_DECL duk_uarridx_t duk_js_to_arrayindex_string_helper(duk_hstring *h); 33 DUK_INTERNAL_DECL duk_bool_t duk_js_equals_helper(duk_hthread *thr, duk_tval *tv_x, duk_tval *tv_y, duk_small_int_t flags); 34 DUK_INTERNAL_DECL duk_small_int_t duk_js_data_compare(const duk_uint8_t *buf1, const duk_uint8_t *buf2, duk_size_t len1, duk_size_t len2); 35 DUK_INTERNAL_DECL duk_small_int_t duk_js_string_compare(duk_hstring *h1, duk_hstring *h2); 36 #if 0 /* unused */ 37 DUK_INTERNAL_DECL duk_small_int_t duk_js_buffer_compare(duk_heap *heap, duk_hbuffer *h1, duk_hbuffer *h2); 38 #endif 39 DUK_INTERNAL_DECL duk_bool_t duk_js_compare_helper(duk_hthread *thr, duk_tval *tv_x, duk_tval *tv_y, duk_small_int_t flags); 40 DUK_INTERNAL_DECL duk_bool_t duk_js_instanceof(duk_hthread *thr, duk_tval *tv_x, duk_tval *tv_y); 41 DUK_INTERNAL_DECL duk_bool_t duk_js_in(duk_hthread *thr, duk_tval *tv_x, duk_tval *tv_y); 42 DUK_INTERNAL_DECL duk_hstring *duk_js_typeof(duk_hthread *thr, duk_tval *tv_x); 43 44 #define duk_js_equals(thr,tv_x,tv_y) \ 45 duk_js_equals_helper((thr), (tv_x), (tv_y), 0) 46 #define duk_js_strict_equals(tv_x,tv_y) \ 47 duk_js_equals_helper(NULL, (tv_x), (tv_y), DUK_EQUALS_FLAG_STRICT) 48 #define duk_js_samevalue(tv_x,tv_y) \ 49 duk_js_equals_helper(NULL, (tv_x), (tv_y), DUK_EQUALS_FLAG_SAMEVALUE) 50 51 /* E5 Sections 11.8.1, 11.8.5; x < y */ 52 #define duk_js_lessthan(thr,tv_x,tv_y) \ 53 duk_js_compare_helper((thr), (tv_x), (tv_Y), DUK_COMPARE_FLAG_EVAL_LEFT_FIRST) 54 55 /* E5 Sections 11.8.2, 11.8.5; x > y --> y < x */ 56 #define duk_js_greaterthan(thr,tv_x,tv_y) \ 57 duk_js_compare_helper((thr), (tv_y), (tv_x), 0) 58 59 /* E5 Sections 11.8.3, 11.8.5; x <= y --> not (x > y) --> not (y < x) */ 60 #define duk_js_lessthanorequal(thr,tv_x,tv_y) \ 61 duk_js_compare_helper((thr), (tv_y), (tv_x), DUK_COMPARE_FLAG_NEGATE) 62 63 /* E5 Sections 11.8.4, 11.8.5; x >= y --> not (x < y) */ 64 #define duk_js_greaterthanorequal(thr,tv_x,tv_y) \ 65 duk_js_compare_helper((thr), (tv_x), (tv_y), DUK_COMPARE_FLAG_EVAL_LEFT_FIRST | DUK_COMPARE_FLAG_NEGATE) 66 67 /* identifiers and environment handling */ 68 #if 0 /*unused*/ 69 DUK_INTERNAL duk_bool_t duk_js_hasvar_envrec(duk_hthread *thr, duk_hobject *env, duk_hstring *name); 70 #endif 71 DUK_INTERNAL_DECL duk_bool_t duk_js_getvar_envrec(duk_hthread *thr, duk_hobject *env, duk_hstring *name, duk_bool_t throw_flag); 72 DUK_INTERNAL_DECL duk_bool_t duk_js_getvar_activation(duk_hthread *thr, duk_activation *act, duk_hstring *name, duk_bool_t throw_flag); 73 DUK_INTERNAL_DECL void duk_js_putvar_envrec(duk_hthread *thr, duk_hobject *env, duk_hstring *name, duk_tval *val, duk_bool_t strict); 74 DUK_INTERNAL_DECL void duk_js_putvar_activation(duk_hthread *thr, duk_activation *act, duk_hstring *name, duk_tval *val, duk_bool_t strict); 75 #if 0 /*unused*/ 76 DUK_INTERNAL_DECL duk_bool_t duk_js_delvar_envrec(duk_hthread *thr, duk_hobject *env, duk_hstring *name); 77 #endif 78 DUK_INTERNAL_DECL duk_bool_t duk_js_delvar_activation(duk_hthread *thr, duk_activation *act, duk_hstring *name); 79 DUK_INTERNAL_DECL duk_bool_t duk_js_declvar_activation(duk_hthread *thr, duk_activation *act, duk_hstring *name, duk_tval *val, duk_small_int_t prop_flags, duk_bool_t is_func_decl); 80 DUK_INTERNAL_DECL void duk_js_init_activation_environment_records_delayed(duk_hthread *thr, duk_activation *act); 81 DUK_INTERNAL_DECL void duk_js_close_environment_record(duk_hthread *thr, duk_hobject *env, duk_hobject *func, duk_size_t regbase); 82 DUK_INTERNAL_DECL duk_hobject *duk_create_activation_environment_record(duk_hthread *thr, duk_hobject *func, duk_size_t idx_bottom); 83 DUK_INTERNAL_DECL 84 void duk_js_push_closure(duk_hthread *thr, 85 duk_hcompiledfunction *fun_temp, 86 duk_hobject *outer_var_env, 87 duk_hobject *outer_lex_env, 88 duk_bool_t add_auto_proto); 89 90 /* call handling */ 91 DUK_INTERNAL_DECL duk_int_t duk_handle_call_protected(duk_hthread *thr, duk_idx_t num_stack_args, duk_small_uint_t call_flags); 92 DUK_INTERNAL_DECL void duk_handle_call_unprotected(duk_hthread *thr, duk_idx_t num_stack_args, duk_small_uint_t call_flags); 93 DUK_INTERNAL_DECL duk_int_t duk_handle_safe_call(duk_hthread *thr, duk_safe_call_function func, duk_idx_t num_stack_args, duk_idx_t num_stack_res); 94 DUK_INTERNAL_DECL duk_bool_t duk_handle_ecma_call_setup(duk_hthread *thr, duk_idx_t num_stack_args, duk_small_uint_t call_flags); 95 96 /* bytecode execution */ 97 DUK_INTERNAL_DECL void duk_js_execute_bytecode(duk_hthread *exec_thr); 98 99 #endif /* DUK_JS_H_INCLUDED */ 100
