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janet/core/stl.c

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/*
* Copyright (c) 2017 Calvin Rose
*
* 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 the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include <dst/dst.h>
#include <dst/dststl.h>
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int dst_stl_push(DstArgs args) {
if (args.n != 2) {
*args.ret = dst_cstringv("expected 2 arguments");
return 1;
}
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if (!dst_checktype(args.v[0], DST_ARRAY)) {
*args.ret = dst_cstringv("expected array");
return 1;
}
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dst_array_push(dst_unwrap_array(args.v[0]), args.v[1]);
*args.ret = args.v[0];
return 0;
}
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int dst_stl_parse(DstArgs args) {
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const uint8_t *src;
int32_t len;
DstParseResult res;
const char *status_string = "ok";
DstTable *t;
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if (args.n < 1) {
*args.ret = dst_cstringv("expected at least on argument");
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return 1;
}
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if (!dst_chararray_view(args.v[0], &src, &len)) {
*args.ret = dst_cstringv("expected string/buffer");
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return 1;
}
res = dst_parse(src, len);
t = dst_table(4);
switch (res.status) {
case DST_PARSE_OK:
status_string = "ok";
break;
case DST_PARSE_ERROR:
status_string = "error";
break;
case DST_PARSE_NODATA:
status_string = "nodata";
break;
case DST_PARSE_UNEXPECTED_EOS:
status_string = "eos";
break;
}
dst_table_put(t, dst_cstringv("status"), dst_cstringv(status_string));
if (res.status == DST_PARSE_OK) dst_table_put(t, dst_cstringv("map"), dst_wrap_tuple(res.map));
if (res.status == DST_PARSE_OK) dst_table_put(t, dst_cstringv("value"), res.value);
if (res.status == DST_PARSE_ERROR) dst_table_put(t, dst_cstringv("error"), dst_wrap_string(res.error));
dst_table_put(t, dst_cstringv("bytes-read"), dst_wrap_integer(res.bytes_read));
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*args.ret = dst_wrap_table(t);
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return 0;
}
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int dst_stl_compile(DstArgs args) {
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DstCompileOptions opts;
DstCompileResult res;
DstTable *t;
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if (args.n < 1) {
*args.ret = dst_cstringv("expected at least on argument");
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return 1;
}
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if (args.n >= 3 && !dst_checktype(args.v[2], DST_TUPLE)) {
*args.ret = dst_cstringv("expected source map to be tuple");
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return 1;
}
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opts.source = args.v[0];
opts.env = args.n >= 2 ? args.v[1] : dst_loadstl(0);
opts.sourcemap = args.n >= 3 ? dst_unwrap_tuple(args.v[2]) : NULL;
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opts.flags = 0;
res = dst_compile(opts);
if (res.status == DST_COMPILE_OK) {
DstFunction *fun = dst_compile_func(res);
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*args.ret = dst_wrap_function(fun);
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} else {
t = dst_table(2);
dst_table_put(t, dst_cstringv("error"), dst_wrap_string(res.error));
dst_table_put(t, dst_cstringv("error-start"), dst_wrap_integer(res.error_start));
dst_table_put(t, dst_cstringv("error-end"), dst_wrap_integer(res.error_end));
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*args.ret = dst_wrap_table(t);
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}
return 0;
}
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int dst_stl_exit(DstArgs args) {
int32_t exitcode = 0;
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if (args.n > 0) {
exitcode = dst_hash(args.v[0]);
}
exit(exitcode);
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return 0;
}
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int dst_stl_print(DstArgs args) {
int32_t i;
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for (i = 0; i < args.n; ++i) {
int32_t j, len;
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const uint8_t *vstr = dst_to_string(args.v[i]);
len = dst_string_length(vstr);
for (j = 0; j < len; ++j) {
putc(vstr[j], stdout);
}
}
putc('\n', stdout);
return 0;
}
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int dst_stl_describe(DstArgs args) {
int32_t i;
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for (i = 0; i < args.n; ++i) {
int32_t j, len;
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const uint8_t *vstr = dst_description(args.v[i]);
len = dst_string_length(vstr);
for (j = 0; j < len; ++j) {
putc(vstr[j], stdout);
}
}
putc('\n', stdout);
return 0;
}
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int dst_stl_string(DstArgs args) {
int32_t i;
DstBuffer b;
dst_buffer_init(&b, 0);
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for (i = 0; i < args.n; ++i) {
int32_t len;
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const uint8_t *str = dst_to_string(args.v[i]);
len = dst_string_length(str);
dst_buffer_push_bytes(&b, str, len);
}
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*args.ret = dst_stringv(b.data, b.count);
dst_buffer_deinit(&b);
return 0;
}
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int dst_stl_asm(DstArgs args) {
DstAssembleOptions opts;
DstAssembleResult res;
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if (args.n < 1) {
*args.ret = dst_cstringv("expected assembly source");
return 1;
}
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opts.source = args.v[0];
opts.flags = 0;
res = dst_asm(opts);
if (res.status == DST_ASSEMBLE_OK) {
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*args.ret = dst_wrap_function(dst_asm_func(res));
return 0;
} else {
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*args.ret = dst_wrap_string(res.error);
return 1;
}
}
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int dst_stl_disasm(DstArgs args) {
DstFunction *f;
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if (args.n < 1 || !dst_checktype(args.v[0], DST_FUNCTION)) {
*args.ret = dst_cstringv("expected function");
return 1;
}
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f = dst_unwrap_function(args.v[0]);
*args.ret = dst_disasm(f->def);
return 0;
}
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int dst_stl_tuple(DstArgs args) {
*args.ret = dst_wrap_tuple(dst_tuple_n(args.v, args.n));
return 0;
}
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int dst_stl_array(DstArgs args) {
DstArray *array = dst_array(args.n);
array->count = args.n;
memcpy(array->data, args.v, args.n * sizeof(Dst));
*args.ret = dst_wrap_array(array);
return 0;
}
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int dst_stl_table(DstArgs args) {
int32_t i;
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DstTable *table = dst_table(args.n >> 1);
if (args.n & 1) {
*args.ret = dst_cstringv("expected even number of arguments");
return 1;
}
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for (i = 0; i < args.n; i += 2) {
dst_table_put(table, args.v[i], args.v[i + 1]);
}
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*args.ret = dst_wrap_table(table);
return 0;
}
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int dst_stl_struct(DstArgs args) {
int32_t i;
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DstKV *st = dst_struct_begin(args.n >> 1);
if (args.n & 1) {
*args.ret = dst_cstringv("expected even number of arguments");
return 1;
}
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for (i = 0; i < args.n; i += 2) {
dst_struct_put(st, args.v[i], args.v[i + 1]);
}
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*args.ret = dst_wrap_struct(dst_struct_end(st));
return 0;
}
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int dst_stl_fiber(DstArgs args) {
DstFiber *fiber;
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if (args.n < 1) {
*args.ret = dst_cstringv("expected at least one argument");
return 1;
}
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if (!dst_checktype(args.v[0], DST_FUNCTION)) {
*args.ret = dst_cstringv("expected a function");
return 1;
}
fiber = dst_fiber(64);
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dst_fiber_funcframe(fiber, dst_unwrap_function(args.v[0]));
fiber->parent = dst_vm_fiber;
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*args.ret = dst_wrap_fiber(fiber);
return 0;
}
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int dst_stl_buffer(DstArgs args) {
DstBuffer *buffer = dst_buffer(10);
int32_t i;
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for (i = 0; i < args.n; ++i) {
const uint8_t *bytes = dst_to_string(args.v[i]);
int32_t len = dst_string_length(bytes);
dst_buffer_push_bytes(buffer, bytes, len);
}
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*args.ret = dst_wrap_buffer(buffer);
return 0;
}
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int dst_stl_gensym(DstArgs args) {
if (args.n > 1) {
*args.ret = dst_cstringv("expected one argument");
return 1;
}
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if (args.n == 0) {
*args.ret = dst_wrap_symbol(dst_symbol_gen(NULL, 0));
} else {
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const uint8_t *s = dst_to_string(args.v[0]);
*args.ret = dst_wrap_symbol(dst_symbol_gen(s, dst_string_length(s)));
}
return 0;
}
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int dst_stl_length(DstArgs args) {
if (args.n != 1) {
*args.ret = dst_cstringv("expected at least 1 argument");
return 1;
}
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*args.ret = dst_wrap_integer(dst_length(args.v[0]));
return 0;
}
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int dst_stl_get(DstArgs args) {
int32_t i;
Dst ds;
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if (args.n < 1) {
*args.ret = dst_cstringv("expected at least 1 argument");
return 1;
}
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ds = args.v[0];
for (i = 1; i < args.n; i++) {
ds = dst_get(ds, args.v[i]);
if (dst_checktype(ds, DST_NIL))
break;
}
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*args.ret = ds;
return 0;
}
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int dst_stl_status(DstArgs args) {
const char *status;
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if (args.n != 1) {
*args.ret = dst_cstringv("expected 1 argument");
return 1;
}
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if (!dst_checktype(args.v[0], DST_FIBER)) {
*args.ret = dst_cstringv("expected fiber");
return 1;
}
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switch(dst_unwrap_fiber(args.v[0])->status) {
case DST_FIBER_PENDING:
status = "pending";
break;
case DST_FIBER_NEW:
status = "new";
break;
case DST_FIBER_ALIVE:
status = "alive";
break;
case DST_FIBER_DEAD:
status = "dead";
break;
case DST_FIBER_ERROR:
status = "error";
break;
}
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*args.ret = dst_cstringv(status);
return 0;
}
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int dst_stl_put(DstArgs args) {
Dst ds, key, value;
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DstArgs subargs = args;
if (args.n < 3) {
*args.ret = dst_cstringv("expected at least 3 arguments");
return 1;
}
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subargs.n -= 2;
if (dst_stl_get(subargs)) {
return 1;
}
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ds = *args.ret;
key = args.v[args.n - 2];
value = args.v[args.n - 1];
dst_put(ds, key, value);
return 0;
}
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static int dst_stl_equal(DstArgs args) {
int32_t i;
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for (i = 0; i < args.n - 1; i++) {
if (!dst_equals(args.v[i], args.v[i+1])) {
*args.ret = dst_wrap_false();
return 0;
}
}
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*args.ret = dst_wrap_true();
return 0;
}
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static int dst_stl_notequal(DstArgs args) {
int32_t i;
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for (i = 0; i < args.n - 1; i++) {
if (dst_equals(args.v[i], args.v[i+1])) {
*args.ret = dst_wrap_false();
return 0;
}
}
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*args.ret = dst_wrap_true();
return 0;
}
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static int dst_stl_not(DstArgs args) {
*args.ret = dst_wrap_boolean(args.n == 0 || !dst_truthy(args.v[0]));
return 0;
}
#define DST_DEFINE_COMPARATOR(name, pred)\
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static int dst_stl_##name(DstArgs args) {\
int32_t i;\
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for (i = 0; i < args.n - 1; i++) {\
if (dst_compare(args.v[i], args.v[i+1]) pred) {\
*args.ret = dst_wrap_false();\
return 0;\
}\
}\
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*args.ret = dst_wrap_true();\
return 0;\
}
DST_DEFINE_COMPARATOR(ascending, >= 0)
DST_DEFINE_COMPARATOR(descending, <= 0)
DST_DEFINE_COMPARATOR(notdescending, > 0)
DST_DEFINE_COMPARATOR(notascending, < 0)
static DstReg stl[] = {
{"push", dst_stl_push},
{"load-native", dst_load_native},
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{"parse", dst_stl_parse},
{"compile", dst_stl_compile},
{"int", dst_int},
{"real", dst_real},
{"print", dst_stl_print},
{"describe", dst_stl_describe},
{"string", dst_stl_string},
{"table", dst_stl_table},
{"array", dst_stl_array},
{"tuple", dst_stl_tuple},
{"struct", dst_stl_struct},
{"fiber", dst_stl_fiber},
{"status", dst_stl_status},
{"buffer", dst_stl_buffer},
{"gensym", dst_stl_gensym},
{"asm", dst_stl_asm},
{"disasm", dst_stl_disasm},
{"get", dst_stl_get},
{"put", dst_stl_put},
{"length", dst_stl_length},
{"+", dst_add},
{"-", dst_subtract},
{"*", dst_multiply},
{"/", dst_divide},
{"%", dst_modulo},
{"cos", dst_cos},
{"sin", dst_sin},
{"tan", dst_tan},
{"acos", dst_acos},
{"asin", dst_asin},
{"atan", dst_atan},
{"exp", dst_exp},
{"log", dst_log},
{"log10", dst_log10},
{"sqrt", dst_sqrt},
{"floor", dst_floor},
{"ceil", dst_ceil},
{"pow", dst_pow},
{"=", dst_stl_equal},
{"not=", dst_stl_notequal},
{"<", dst_stl_ascending},
{">", dst_stl_descending},
{"<=", dst_stl_notdescending},
{">=", dst_stl_notascending},
{"|", dst_bor},
{"&", dst_band},
{"^", dst_bxor},
{">>", dst_lshift},
{"<<", dst_rshift},
{">>>", dst_lshiftu},
{"not", dst_stl_not},
{"fopen", dst_stl_fileopen},
{"fclose", dst_stl_fileclose},
{"fwrite", dst_stl_filewrite},
{"fread", dst_stl_fileread},
{"exit!", dst_stl_exit}
};
Dst dst_loadstl(int flags) {
Dst ret = dst_loadreg(stl, sizeof(stl)/sizeof(DstReg));
if (flags & DST_LOAD_ROOT) {
dst_gcroot(ret);
}
if (dst_checktype(ret, DST_TABLE)) {
DstTable *v = dst_table(1);
dst_table_put(v, dst_csymbolv("value"), ret);
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dst_put(ret, dst_csymbolv("_env"), dst_wrap_table(v));
}
return ret;
}