1121 lines
38 KiB
C++
1121 lines
38 KiB
C++
#include "cubescript.hh"
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#include "cs_vm.hh"
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#include <limits.h>
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#include <ostd/memory.hh>
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namespace cscript {
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static inline ostd::Uint32 const *forcecode(CsState &cs, TaggedValue &v) {
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if (v.get_type() != VAL_CODE) {
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GenState gs(cs);
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gs.code.reserve(64);
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gs.gen_main(v.get_str());
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v.cleanup();
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v.set_code(reinterpret_cast<Bytecode *>(gs.code.disown() + 1));
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}
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return reinterpret_cast<ostd::Uint32 const *>(v.code);
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}
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static inline void forcecond(CsState &cs, TaggedValue &v) {
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switch (v.get_type()) {
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case VAL_STR:
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case VAL_MACRO:
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case VAL_CSTR:
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if (v.s[0]) forcecode(cs, v);
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else v.set_int(0);
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break;
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}
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}
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static ostd::Uint32 emptyblock[VAL_ANY][2] = {
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{ CODE_START + 0x100, CODE_EXIT | RET_NULL },
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{ CODE_START + 0x100, CODE_EXIT | RET_INT },
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{ CODE_START + 0x100, CODE_EXIT | RET_FLOAT },
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{ CODE_START + 0x100, CODE_EXIT | RET_STR }
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};
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static inline void force_arg(TaggedValue &v, int type) {
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switch (type) {
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case RET_STR:
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if (v.get_type() != VAL_STR) v.force_str();
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break;
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case RET_INT:
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if (v.get_type() != VAL_INT) v.force_int();
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break;
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case RET_FLOAT:
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if (v.get_type() != VAL_FLOAT) v.force_float();
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break;
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}
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}
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static inline void free_args(TaggedValue *args, int &oldnum, int newnum) {
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for (int i = newnum; i < oldnum; i++) args[i].cleanup();
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oldnum = newnum;
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}
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static ostd::Uint32 const *skipcode(ostd::Uint32 const *code, TaggedValue *result = nullptr) {
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int depth = 0;
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for (;;) {
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ostd::Uint32 op = *code++;
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switch (op & 0xFF) {
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case CODE_MACRO:
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case CODE_VAL|RET_STR: {
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ostd::Uint32 len = op >> 8;
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code += len / sizeof(ostd::Uint32) + 1;
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continue;
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}
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case CODE_BLOCK:
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case CODE_JUMP:
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case CODE_JUMP_TRUE:
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case CODE_JUMP_FALSE:
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case CODE_JUMP_RESULT_TRUE:
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case CODE_JUMP_RESULT_FALSE: {
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ostd::Uint32 len = op >> 8;
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code += len;
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continue;
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}
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case CODE_ENTER:
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case CODE_ENTER_RESULT:
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++depth;
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continue;
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case CODE_EXIT|RET_NULL:
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case CODE_EXIT|RET_STR:
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case CODE_EXIT|RET_INT:
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case CODE_EXIT|RET_FLOAT:
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if (depth <= 0) {
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if (result) {
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force_arg(*result, op & CODE_RET_MASK);
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}
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return code;
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}
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--depth;
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continue;
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}
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}
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}
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void TaggedValue::copy_arg(TaggedValue &r) const {
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r.cleanup();
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switch (get_type()) {
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case VAL_INT:
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case VAL_FLOAT:
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case VAL_IDENT:
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r = *this;
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break;
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case VAL_STR:
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case VAL_CSTR:
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case VAL_MACRO:
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r.set_str(ostd::ConstCharRange(s, len));
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break;
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case VAL_CODE: {
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ostd::Uint32 const *bcode = reinterpret_cast<ostd::Uint32 const *>(code);
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ostd::Uint32 const *end = skipcode(bcode);
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ostd::Uint32 *dst = new ostd::Uint32[end - bcode + 1];
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*dst++ = CODE_START;
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memcpy(dst, bcode, (end - bcode) * sizeof(ostd::Uint32));
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r.set_code(reinterpret_cast<Bytecode const *>(dst));
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break;
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}
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default:
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r.set_null();
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break;
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}
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}
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static inline void callcommand(CsState &cs, Ident *id, TaggedValue *args, TaggedValue &res, int numargs, bool lookup = false) {
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int i = -1, fakeargs = 0;
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bool rep = false;
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for (char const *fmt = id->cargs; *fmt; fmt++) switch (*fmt) {
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case 'i':
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if (++i >= numargs) {
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if (rep) break;
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args[i].set_int(0);
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fakeargs++;
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} else args[i].force_int();
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break;
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case 'b':
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if (++i >= numargs) {
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if (rep) break;
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args[i].set_int(INT_MIN);
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fakeargs++;
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} else args[i].force_int();
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break;
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case 'f':
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if (++i >= numargs) {
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if (rep) break;
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args[i].set_float(0.0f);
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fakeargs++;
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} else args[i].force_float();
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break;
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case 'F':
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if (++i >= numargs) {
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if (rep) break;
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args[i].set_float(args[i - 1].get_float());
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fakeargs++;
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} else args[i].force_float();
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break;
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case 'S':
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if (++i >= numargs) {
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if (rep) break;
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args[i].set_str("");
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fakeargs++;
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} else args[i].force_str();
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break;
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case 's':
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if (++i >= numargs) {
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if (rep) break;
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args[i].set_cstr("");
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fakeargs++;
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} else args[i].force_str();
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break;
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case 'T':
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case 't':
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if (++i >= numargs) {
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if (rep) break;
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args[i].set_null();
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fakeargs++;
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}
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break;
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case 'E':
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if (++i >= numargs) {
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if (rep) break;
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args[i].set_null();
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fakeargs++;
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} else forcecond(cs, args[i]);
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break;
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case 'e':
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if (++i >= numargs) {
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if (rep) break;
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args[i].set_code(reinterpret_cast<Bytecode *>(emptyblock[VAL_NULL] + 1));
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fakeargs++;
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} else forcecode(cs, args[i]);
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break;
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case 'r':
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if (++i >= numargs) {
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if (rep) break;
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args[i].set_ident(cs.dummy);
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fakeargs++;
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} else cs.force_ident(args[i]);
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break;
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case '$':
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if (++i < numargs) args[i].cleanup();
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args[i].set_ident(id);
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break;
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case 'N':
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if (++i < numargs) args[i].cleanup();
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args[i].set_int(lookup ? -1 : i - fakeargs);
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break;
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case 'C': {
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i = ostd::max(i + 1, numargs);
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auto buf = ostd::appender<ostd::String>();
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cscript::util::tvals_concat(buf, ostd::iter(args, i), " ");
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TaggedValue tv;
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tv.set_mstr(buf.get().iter());
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id->cb_cftv(TvalRange(&tv, 1), res);
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goto cleanup;
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}
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case 'V':
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i = ostd::max(i + 1, numargs);
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id->cb_cftv(ostd::iter(args, i), res);
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goto cleanup;
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case '1':
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case '2':
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case '3':
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case '4':
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if (i + 1 < numargs) {
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fmt -= *fmt - '0' + 1;
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rep = true;
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}
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break;
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}
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++i;
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id->cb_cftv(TvalRange(args, i), res);
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cleanup:
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for (ostd::Size k = 0; k < ostd::Size(i); ++k) args[k].cleanup();
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for (; i < numargs; i++) args[i].cleanup();
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}
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static constexpr int MaxRunDepth = 255;
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static thread_local int rundepth = 0;
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static ostd::Uint32 const *runcode(CsState &cs, ostd::Uint32 const *code, TaggedValue &result) {
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result.set_null();
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if (rundepth >= MaxRunDepth) {
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cs_debug_code(cs, "exceeded recursion limit");
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return skipcode(code, &result);
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}
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++rundepth;
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int numargs = 0;
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TaggedValue args[MaxArguments + MaxResults];
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for (;;) {
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ostd::Uint32 op = *code++;
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switch (op & 0xFF) {
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case CODE_START:
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case CODE_OFFSET:
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continue;
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#define RETOP(op, val) \
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case op: \
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result.cleanup(); \
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val; \
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continue;
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RETOP(CODE_NULL | RET_NULL, result.set_null())
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RETOP(CODE_NULL | RET_STR, result.set_str(""))
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RETOP(CODE_NULL | RET_INT, result.set_int(0))
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RETOP(CODE_NULL | RET_FLOAT, result.set_float(0.0f))
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RETOP(CODE_FALSE | RET_STR, result.set_str("0"))
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case CODE_FALSE|RET_NULL:
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RETOP(CODE_FALSE | RET_INT, result.set_int(0))
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RETOP(CODE_FALSE | RET_FLOAT, result.set_float(0.0f))
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RETOP(CODE_TRUE | RET_STR, result.set_str("1"))
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case CODE_TRUE|RET_NULL:
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RETOP(CODE_TRUE | RET_INT, result.set_int(1))
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RETOP(CODE_TRUE | RET_FLOAT, result.set_float(1.0f))
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#define RETPOP(op, val) \
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RETOP(op, { --numargs; val; args[numargs].cleanup(); })
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RETPOP(CODE_NOT | RET_STR, result.set_str(args[numargs].get_bool() ? "0" : "1"))
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case CODE_NOT|RET_NULL:
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RETPOP(CODE_NOT | RET_INT, result.set_int(args[numargs].get_bool() ? 0 : 1))
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RETPOP(CODE_NOT | RET_FLOAT, result.set_float(args[numargs].get_bool() ? 0.0f : 1.0f))
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case CODE_POP:
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args[--numargs].cleanup();
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continue;
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case CODE_ENTER:
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code = runcode(cs, code, args[numargs++]);
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continue;
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case CODE_ENTER_RESULT:
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result.cleanup();
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code = runcode(cs, code, result);
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continue;
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case CODE_EXIT|RET_STR:
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case CODE_EXIT|RET_INT:
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case CODE_EXIT|RET_FLOAT:
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force_arg(result, op & CODE_RET_MASK);
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/* fallthrough */
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case CODE_EXIT|RET_NULL:
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goto exit;
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case CODE_RESULT_ARG|RET_STR:
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case CODE_RESULT_ARG|RET_INT:
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case CODE_RESULT_ARG|RET_FLOAT:
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force_arg(result, op & CODE_RET_MASK);
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/* fallthrough */
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case CODE_RESULT_ARG|RET_NULL:
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args[numargs++] = result;
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result.set_null();
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continue;
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case CODE_PRINT:
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cs.print_var(cs.identmap[op >> 8]);
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continue;
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case CODE_LOCAL: {
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result.cleanup();
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int numlocals = op >> 8, offset = numargs - numlocals;
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IdentStack locals[MaxArguments];
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for (int i = 0; i < numlocals; ++i) args[offset + i].id->push_alias(locals[i]);
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code = runcode(cs, code, result);
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for (int i = offset; i < numargs; i++) args[i].id->pop_alias();
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goto exit;
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}
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case CODE_DOARGS|RET_NULL:
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case CODE_DOARGS|RET_STR:
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case CODE_DOARGS|RET_INT:
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case CODE_DOARGS|RET_FLOAT:
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if (cs.stack != &cs.noalias) {
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cs_do_args(cs, [&]() {
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result.cleanup();
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cs.run_ret(args[--numargs].code, result);
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args[numargs].cleanup();
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force_arg(result, op & CODE_RET_MASK);
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});
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continue;
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}
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/* fallthrough */
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case CODE_DO|RET_NULL:
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case CODE_DO|RET_STR:
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case CODE_DO|RET_INT:
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case CODE_DO|RET_FLOAT:
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result.cleanup();
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cs.run_ret(args[--numargs].code, result);
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args[numargs].cleanup();
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force_arg(result, op & CODE_RET_MASK);
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continue;
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case CODE_JUMP: {
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ostd::Uint32 len = op >> 8;
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code += len;
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continue;
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}
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case CODE_JUMP_TRUE: {
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ostd::Uint32 len = op >> 8;
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if (args[--numargs].get_bool()) code += len;
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args[numargs].cleanup();
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continue;
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}
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case CODE_JUMP_FALSE: {
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ostd::Uint32 len = op >> 8;
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if (!args[--numargs].get_bool()) code += len;
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args[numargs].cleanup();
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continue;
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}
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case CODE_JUMP_RESULT_TRUE: {
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ostd::Uint32 len = op >> 8;
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result.cleanup();
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--numargs;
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if (args[numargs].get_type() == VAL_CODE) {
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cs.run_ret(args[numargs].code, result);
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args[numargs].cleanup();
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} else result = args[numargs];
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if (result.get_bool()) code += len;
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continue;
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}
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case CODE_JUMP_RESULT_FALSE: {
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ostd::Uint32 len = op >> 8;
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result.cleanup();
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--numargs;
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if (args[numargs].get_type() == VAL_CODE) {
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cs.run_ret(args[numargs].code, result);
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args[numargs].cleanup();
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} else result = args[numargs];
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if (!result.get_bool()) code += len;
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continue;
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}
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case CODE_MACRO: {
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ostd::Uint32 len = op >> 8;
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args[numargs++].set_macro(reinterpret_cast<Bytecode const *>(code), len);
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code += len / sizeof(ostd::Uint32) + 1;
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continue;
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}
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case CODE_VAL|RET_STR: {
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ostd::Uint32 len = op >> 8;
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args[numargs++].set_str(ostd::ConstCharRange(reinterpret_cast<char const *>(code), len));
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code += len / sizeof(ostd::Uint32) + 1;
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continue;
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}
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case CODE_VALI|RET_STR: {
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char s[4] = { char((op >> 8) & 0xFF), char((op >> 16) & 0xFF), char((op >> 24) & 0xFF), '\0' };
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args[numargs++].set_str(s);
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continue;
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}
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case CODE_VAL|RET_NULL:
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case CODE_VALI|RET_NULL:
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args[numargs++].set_null();
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continue;
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case CODE_VAL|RET_INT:
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args[numargs++].set_int(int(*code++));
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continue;
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case CODE_VALI|RET_INT:
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args[numargs++].set_int(int(op) >> 8);
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continue;
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case CODE_VAL|RET_FLOAT:
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args[numargs++].set_float(*reinterpret_cast<float const *>(code++));
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continue;
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case CODE_VALI|RET_FLOAT:
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args[numargs++].set_float(float(int(op) >> 8));
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continue;
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|
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case CODE_DUP|RET_NULL:
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args[numargs - 1].get_val(args[numargs]);
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numargs++;
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continue;
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case CODE_DUP|RET_INT:
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args[numargs].set_int(args[numargs - 1].get_int());
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numargs++;
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continue;
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case CODE_DUP|RET_FLOAT:
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args[numargs].set_float(args[numargs - 1].get_float());
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numargs++;
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continue;
|
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case CODE_DUP|RET_STR:
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args[numargs].set_str(ostd::move(args[numargs - 1].get_str()));
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numargs++;
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continue;
|
|
|
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case CODE_FORCE|RET_STR:
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args[numargs - 1].force_str();
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continue;
|
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case CODE_FORCE|RET_INT:
|
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args[numargs - 1].force_int();
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continue;
|
|
case CODE_FORCE|RET_FLOAT:
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args[numargs - 1].force_float();
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continue;
|
|
|
|
case CODE_RESULT|RET_NULL:
|
|
result.cleanup();
|
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result = args[--numargs];
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continue;
|
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case CODE_RESULT|RET_STR:
|
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case CODE_RESULT|RET_INT:
|
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case CODE_RESULT|RET_FLOAT:
|
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result.cleanup();
|
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result = args[--numargs];
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force_arg(result, op & CODE_RET_MASK);
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continue;
|
|
|
|
case CODE_EMPTY|RET_NULL:
|
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args[numargs++].set_code(reinterpret_cast<Bytecode *>(emptyblock[VAL_NULL] + 1));
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break;
|
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case CODE_EMPTY|RET_STR:
|
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args[numargs++].set_code(reinterpret_cast<Bytecode *>(emptyblock[VAL_STR] + 1));
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break;
|
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case CODE_EMPTY|RET_INT:
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args[numargs++].set_code(reinterpret_cast<Bytecode *>(emptyblock[VAL_INT] + 1));
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break;
|
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case CODE_EMPTY|RET_FLOAT:
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args[numargs++].set_code(reinterpret_cast<Bytecode *>(emptyblock[VAL_FLOAT] + 1));
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break;
|
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case CODE_BLOCK: {
|
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ostd::Uint32 len = op >> 8;
|
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args[numargs++].set_code(reinterpret_cast<Bytecode const *>(code + 1));
|
|
code += len;
|
|
continue;
|
|
}
|
|
case CODE_COMPILE: {
|
|
TaggedValue &arg = args[numargs - 1];
|
|
GenState gs(cs);
|
|
switch (arg.get_type()) {
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|
case VAL_INT:
|
|
gs.code.reserve(8);
|
|
gs.code.push(CODE_START);
|
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gs.gen_int(arg.i);
|
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gs.code.push(CODE_RESULT);
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gs.code.push(CODE_EXIT);
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break;
|
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case VAL_FLOAT:
|
|
gs.code.reserve(8);
|
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gs.code.push(CODE_START);
|
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gs.gen_float(arg.f);
|
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gs.code.push(CODE_RESULT);
|
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gs.code.push(CODE_EXIT);
|
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break;
|
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case VAL_STR:
|
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case VAL_MACRO:
|
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case VAL_CSTR:
|
|
gs.code.reserve(64);
|
|
gs.gen_main(arg.s);
|
|
arg.cleanup();
|
|
break;
|
|
default:
|
|
gs.code.reserve(8);
|
|
gs.code.push(CODE_START);
|
|
gs.gen_null();
|
|
gs.code.push(CODE_RESULT);
|
|
gs.code.push(CODE_EXIT);
|
|
break;
|
|
}
|
|
arg.set_code(reinterpret_cast<Bytecode const *>(gs.code.disown() + 1));
|
|
continue;
|
|
}
|
|
case CODE_COND: {
|
|
TaggedValue &arg = args[numargs - 1];
|
|
switch (arg.get_type()) {
|
|
case VAL_STR:
|
|
case VAL_MACRO:
|
|
case VAL_CSTR:
|
|
if (arg.s[0]) {
|
|
GenState gs(cs);
|
|
gs.code.reserve(64);
|
|
gs.gen_main(arg.s);
|
|
arg.cleanup();
|
|
arg.set_code(reinterpret_cast<Bytecode const *>(gs.code.disown() + 1));
|
|
} else arg.force_null();
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
case CODE_IDENT:
|
|
args[numargs++].set_ident(cs.identmap[op >> 8]);
|
|
continue;
|
|
case CODE_IDENTARG: {
|
|
Ident *id = cs.identmap[op >> 8];
|
|
if (!(cs.stack->usedargs & (1 << id->index))) {
|
|
id->push_arg(null_value, cs.stack->argstack[id->index], false);
|
|
cs.stack->usedargs |= 1 << id->index;
|
|
}
|
|
args[numargs++].set_ident(id);
|
|
continue;
|
|
}
|
|
case CODE_IDENTU: {
|
|
TaggedValue &arg = args[numargs - 1];
|
|
Ident *id = arg.get_type() == VAL_STR || arg.get_type() == VAL_MACRO || arg.get_type() == VAL_CSTR ? cs.new_ident(ostd::ConstCharRange(arg.cstr, arg.len)) : cs.dummy;
|
|
if (id->index < MaxArguments && !(cs.stack->usedargs & (1 << id->index))) {
|
|
id->push_arg(null_value, cs.stack->argstack[id->index], false);
|
|
cs.stack->usedargs |= 1 << id->index;
|
|
}
|
|
arg.cleanup();
|
|
arg.set_ident(id);
|
|
continue;
|
|
}
|
|
|
|
case CODE_LOOKUPU|RET_STR:
|
|
#define LOOKUPU(aval, sval, ival, fval, nval) { \
|
|
TaggedValue &arg = args[numargs-1]; \
|
|
if(arg.get_type() != VAL_STR && arg.get_type() != VAL_MACRO && arg.get_type() != VAL_CSTR) continue; \
|
|
Ident *id = cs.idents.at(arg.s); \
|
|
if(id) switch(id->type) \
|
|
{ \
|
|
case ID_ALIAS: \
|
|
if(id->flags&IDF_UNKNOWN) break; \
|
|
arg.cleanup(); \
|
|
if(id->index < MaxArguments && !(cs.stack->usedargs&(1<<id->index))) { nval; continue; } \
|
|
aval; \
|
|
continue; \
|
|
case ID_SVAR: arg.cleanup(); sval; continue; \
|
|
case ID_VAR: arg.cleanup(); ival; continue; \
|
|
case ID_FVAR: arg.cleanup(); fval; continue; \
|
|
case ID_COMMAND: \
|
|
{ \
|
|
arg.cleanup(); \
|
|
arg.set_null(); \
|
|
TaggedValue buf[MaxArguments]; \
|
|
callcommand(cs, id, buf, arg, 0, true); \
|
|
force_arg(arg, op&CODE_RET_MASK); \
|
|
continue; \
|
|
} \
|
|
default: arg.cleanup(); nval; continue; \
|
|
} \
|
|
cs_debug_code(cs, "unknown alias lookup: %s", arg.s); \
|
|
arg.cleanup(); \
|
|
nval; \
|
|
continue; \
|
|
}
|
|
LOOKUPU(arg.set_str(ostd::move(id->get_str())),
|
|
arg.set_str(*id->storage.sp),
|
|
arg.set_str(ostd::move(intstr(*id->storage.ip))),
|
|
arg.set_str(ostd::move(floatstr(*id->storage.fp))),
|
|
arg.set_str(""));
|
|
case CODE_LOOKUP|RET_STR:
|
|
#define LOOKUP(aval) { \
|
|
Ident *id = cs.identmap[op>>8]; \
|
|
if(id->flags&IDF_UNKNOWN) cs_debug_code(cs, "unknown alias lookup: %s", id->name); \
|
|
aval; \
|
|
continue; \
|
|
}
|
|
LOOKUP(args[numargs++].set_str(ostd::move(id->get_str())));
|
|
case CODE_LOOKUPARG|RET_STR:
|
|
#define LOOKUPARG(aval, nval) { \
|
|
Ident *id = cs.identmap[op>>8]; \
|
|
if(!(cs.stack->usedargs&(1<<id->index))) { nval; continue; } \
|
|
aval; \
|
|
continue; \
|
|
}
|
|
LOOKUPARG(args[numargs++].set_str(ostd::move(id->get_str())), args[numargs++].set_str(""));
|
|
case CODE_LOOKUPU|RET_INT:
|
|
LOOKUPU(arg.set_int(id->get_int()),
|
|
arg.set_int(parseint(*id->storage.sp)),
|
|
arg.set_int(*id->storage.ip),
|
|
arg.set_int(int(*id->storage.fp)),
|
|
arg.set_int(0));
|
|
case CODE_LOOKUP|RET_INT:
|
|
LOOKUP(args[numargs++].set_int(id->get_int()));
|
|
case CODE_LOOKUPARG|RET_INT:
|
|
LOOKUPARG(args[numargs++].set_int(id->get_int()), args[numargs++].set_int(0));
|
|
case CODE_LOOKUPU|RET_FLOAT:
|
|
LOOKUPU(arg.set_float(id->get_float()),
|
|
arg.set_float(parsefloat(*id->storage.sp)),
|
|
arg.set_float(float(*id->storage.ip)),
|
|
arg.set_float(*id->storage.fp),
|
|
arg.set_float(0.0f));
|
|
case CODE_LOOKUP|RET_FLOAT:
|
|
LOOKUP(args[numargs++].set_float(id->get_float()));
|
|
case CODE_LOOKUPARG|RET_FLOAT:
|
|
LOOKUPARG(args[numargs++].set_float(id->get_float()), args[numargs++].set_float(0.0f));
|
|
case CODE_LOOKUPU|RET_NULL:
|
|
LOOKUPU(id->get_val(arg),
|
|
arg.set_str(*id->storage.sp),
|
|
arg.set_int(*id->storage.ip),
|
|
arg.set_float(*id->storage.fp),
|
|
arg.set_null());
|
|
case CODE_LOOKUP|RET_NULL:
|
|
LOOKUP(id->get_val(args[numargs++]));
|
|
case CODE_LOOKUPARG|RET_NULL:
|
|
LOOKUPARG(id->get_val(args[numargs++]), args[numargs++].set_null());
|
|
|
|
case CODE_LOOKUPMU|RET_STR:
|
|
LOOKUPU(id->get_cstr(arg),
|
|
arg.set_cstr(*id->storage.sp),
|
|
arg.set_str(ostd::move(intstr(*id->storage.ip))),
|
|
arg.set_str(ostd::move(floatstr(*id->storage.fp))),
|
|
arg.set_cstr(""));
|
|
case CODE_LOOKUPM|RET_STR:
|
|
LOOKUP(id->get_cstr(args[numargs++]));
|
|
case CODE_LOOKUPMARG|RET_STR:
|
|
LOOKUPARG(id->get_cstr(args[numargs++]), args[numargs++].set_cstr(""));
|
|
case CODE_LOOKUPMU|RET_NULL:
|
|
LOOKUPU(id->get_cval(arg),
|
|
arg.set_cstr(*id->storage.sp),
|
|
arg.set_int(*id->storage.ip),
|
|
arg.set_float(*id->storage.fp),
|
|
arg.set_null());
|
|
case CODE_LOOKUPM|RET_NULL:
|
|
LOOKUP(id->get_cval(args[numargs++]));
|
|
case CODE_LOOKUPMARG|RET_NULL:
|
|
LOOKUPARG(id->get_cval(args[numargs++]), args[numargs++].set_null());
|
|
|
|
case CODE_SVAR|RET_STR:
|
|
case CODE_SVAR|RET_NULL:
|
|
args[numargs++].set_str(*cs.identmap[op >> 8]->storage.sp);
|
|
continue;
|
|
case CODE_SVAR|RET_INT:
|
|
args[numargs++].set_int(parseint(*cs.identmap[op >> 8]->storage.sp));
|
|
continue;
|
|
case CODE_SVAR|RET_FLOAT:
|
|
args[numargs++].set_float(parsefloat(*cs.identmap[op >> 8]->storage.sp));
|
|
continue;
|
|
case CODE_SVARM:
|
|
args[numargs++].set_cstr(*cs.identmap[op >> 8]->storage.sp);
|
|
continue;
|
|
case CODE_SVAR1:
|
|
cs.set_var_str_checked(cs.identmap[op >> 8], args[--numargs].s);
|
|
args[numargs].cleanup();
|
|
continue;
|
|
|
|
case CODE_IVAR|RET_INT:
|
|
case CODE_IVAR|RET_NULL:
|
|
args[numargs++].set_int(*cs.identmap[op >> 8]->storage.ip);
|
|
continue;
|
|
case CODE_IVAR|RET_STR:
|
|
args[numargs++].set_str(ostd::move(intstr(*cs.identmap[op >> 8]->storage.ip)));
|
|
continue;
|
|
case CODE_IVAR|RET_FLOAT:
|
|
args[numargs++].set_float(float(*cs.identmap[op >> 8]->storage.ip));
|
|
continue;
|
|
case CODE_IVAR1:
|
|
cs.set_var_int_checked(cs.identmap[op >> 8], args[--numargs].i);
|
|
continue;
|
|
case CODE_IVAR2:
|
|
numargs -= 2;
|
|
cs.set_var_int_checked(cs.identmap[op >> 8], (args[numargs].i << 16) | (args[numargs + 1].i << 8));
|
|
continue;
|
|
case CODE_IVAR3:
|
|
numargs -= 3;
|
|
cs.set_var_int_checked(cs.identmap[op >> 8], (args[numargs].i << 16) | (args[numargs + 1].i << 8) | args[numargs + 2].i);
|
|
continue;
|
|
|
|
case CODE_FVAR|RET_FLOAT:
|
|
case CODE_FVAR|RET_NULL:
|
|
args[numargs++].set_float(*cs.identmap[op >> 8]->storage.fp);
|
|
continue;
|
|
case CODE_FVAR|RET_STR:
|
|
args[numargs++].set_str(ostd::move(floatstr(*cs.identmap[op >> 8]->storage.fp)));
|
|
continue;
|
|
case CODE_FVAR|RET_INT:
|
|
args[numargs++].set_int(int(*cs.identmap[op >> 8]->storage.fp));
|
|
continue;
|
|
case CODE_FVAR1:
|
|
cs.set_var_float_checked(cs.identmap[op >> 8], args[--numargs].f);
|
|
continue;
|
|
|
|
case CODE_COM|RET_NULL:
|
|
case CODE_COM|RET_STR:
|
|
case CODE_COM|RET_FLOAT:
|
|
case CODE_COM|RET_INT: {
|
|
Ident *id = cs.identmap[op >> 8];
|
|
int offset = numargs - id->numargs;
|
|
result.force_null();
|
|
id->cb_cftv(TvalRange(args + offset, id->numargs), result);
|
|
force_arg(result, op & CODE_RET_MASK);
|
|
free_args(args, numargs, offset);
|
|
continue;
|
|
}
|
|
|
|
case CODE_COMV|RET_NULL:
|
|
case CODE_COMV|RET_STR:
|
|
case CODE_COMV|RET_FLOAT:
|
|
case CODE_COMV|RET_INT: {
|
|
Ident *id = cs.identmap[op >> 13];
|
|
int callargs = (op >> 8) & 0x1F, offset = numargs - callargs;
|
|
result.force_null();
|
|
id->cb_cftv(ostd::iter(&args[offset], callargs), result);
|
|
force_arg(result, op & CODE_RET_MASK);
|
|
free_args(args, numargs, offset);
|
|
continue;
|
|
}
|
|
case CODE_COMC|RET_NULL:
|
|
case CODE_COMC|RET_STR:
|
|
case CODE_COMC|RET_FLOAT:
|
|
case CODE_COMC|RET_INT: {
|
|
Ident *id = cs.identmap[op >> 13];
|
|
int callargs = (op >> 8) & 0x1F, offset = numargs - callargs;
|
|
result.force_null();
|
|
{
|
|
auto buf = ostd::appender<ostd::String>();
|
|
cscript::util::tvals_concat(buf, ostd::iter(&args[offset], callargs), " ");
|
|
TaggedValue tv;
|
|
tv.set_mstr(buf.get().iter());
|
|
id->cb_cftv(TvalRange(&tv, 1), result);
|
|
}
|
|
force_arg(result, op & CODE_RET_MASK);
|
|
free_args(args, numargs, offset);
|
|
continue;
|
|
}
|
|
|
|
case CODE_CONC|RET_NULL:
|
|
case CODE_CONC|RET_STR:
|
|
case CODE_CONC|RET_FLOAT:
|
|
case CODE_CONC|RET_INT:
|
|
case CODE_CONCW|RET_NULL:
|
|
case CODE_CONCW|RET_STR:
|
|
case CODE_CONCW|RET_FLOAT:
|
|
case CODE_CONCW|RET_INT: {
|
|
int numconc = op >> 8;
|
|
auto buf = ostd::appender<ostd::String>();
|
|
cscript::util::tvals_concat(buf, ostd::iter(&args[numargs - numconc], numconc), ((op & CODE_OP_MASK) == CODE_CONC) ? " " : "");
|
|
free_args(args, numargs, numargs - numconc);
|
|
args[numargs].set_mstr(buf.get().iter());
|
|
buf.get().disown();
|
|
force_arg(args[numargs], op & CODE_RET_MASK);
|
|
numargs++;
|
|
continue;
|
|
}
|
|
|
|
case CODE_CONCM|RET_NULL:
|
|
case CODE_CONCM|RET_STR:
|
|
case CODE_CONCM|RET_FLOAT:
|
|
case CODE_CONCM|RET_INT: {
|
|
int numconc = op >> 8;
|
|
auto buf = ostd::appender<ostd::String>();
|
|
cscript::util::tvals_concat(buf, ostd::iter(&args[numargs - numconc], numconc));
|
|
free_args(args, numargs, numargs - numconc);
|
|
result.set_mstr(buf.get().iter());
|
|
buf.get().disown();
|
|
force_arg(result, op & CODE_RET_MASK);
|
|
continue;
|
|
}
|
|
|
|
case CODE_ALIAS:
|
|
cs.identmap[op >> 8]->set_alias(cs, args[--numargs]);
|
|
continue;
|
|
case CODE_ALIASARG:
|
|
cs.identmap[op >> 8]->set_arg(cs, args[--numargs]);
|
|
continue;
|
|
case CODE_ALIASU:
|
|
numargs -= 2;
|
|
cs.set_alias(args[numargs].get_str(), args[numargs + 1]);
|
|
args[numargs].cleanup();
|
|
continue;
|
|
|
|
#define SKIPARGS(offset) offset
|
|
case CODE_CALL|RET_NULL:
|
|
case CODE_CALL|RET_STR:
|
|
case CODE_CALL|RET_FLOAT:
|
|
case CODE_CALL|RET_INT: {
|
|
#define FORCERESULT { \
|
|
free_args(args, numargs, SKIPARGS(offset)); \
|
|
force_arg(result, op&CODE_RET_MASK); \
|
|
continue; \
|
|
}
|
|
#define CALLALIAS(cs, result) { \
|
|
IdentStack argstack[MaxArguments]; \
|
|
for(int i = 0; i < callargs; i++) \
|
|
(cs).identmap[i]->push_arg(args[offset + i], argstack[i], false); \
|
|
int oldargs = (cs).numargs; \
|
|
(cs).numargs = callargs; \
|
|
int oldflags = (cs).identflags; \
|
|
(cs).identflags |= id->flags&IDF_OVERRIDDEN; \
|
|
IdentLink aliaslink = { id, (cs).stack, (1<<callargs)-1, argstack }; \
|
|
(cs).stack = &aliaslink; \
|
|
if(!id->code) id->code = reinterpret_cast<Bytecode *>(compilecode(cs, id->get_str())); \
|
|
ostd::Uint32 *codep = reinterpret_cast<ostd::Uint32 *>(id->code); \
|
|
bcode_incr(codep); \
|
|
runcode((cs), codep+1, (result)); \
|
|
bcode_decr(codep); \
|
|
(cs).stack = aliaslink.next; \
|
|
(cs).identflags = oldflags; \
|
|
for(int i = 0; i < callargs; i++) \
|
|
(cs).identmap[i]->pop_arg(); \
|
|
for(int argmask = aliaslink.usedargs&(~0<<callargs), i = callargs; argmask; i++) \
|
|
if(argmask&(1<<i)) { (cs).identmap[i]->pop_arg(); argmask &= ~(1<<i); } \
|
|
force_arg(result, op&CODE_RET_MASK); \
|
|
(cs).numargs = oldargs; \
|
|
numargs = SKIPARGS(offset); \
|
|
}
|
|
result.force_null();
|
|
Ident *id = cs.identmap[op >> 13];
|
|
int callargs = (op >> 8) & 0x1F, offset = numargs - callargs;
|
|
if (id->flags & IDF_UNKNOWN) {
|
|
cs_debug_code(cs, "unknown command: %s", id->name);
|
|
FORCERESULT;
|
|
}
|
|
CALLALIAS(cs, result);
|
|
continue;
|
|
}
|
|
case CODE_CALLARG|RET_NULL:
|
|
case CODE_CALLARG|RET_STR:
|
|
case CODE_CALLARG|RET_FLOAT:
|
|
case CODE_CALLARG|RET_INT: {
|
|
result.force_null();
|
|
Ident *id = cs.identmap[op >> 13];
|
|
int callargs = (op >> 8) & 0x1F, offset = numargs - callargs;
|
|
if (!(cs.stack->usedargs & (1 << id->index))) FORCERESULT;
|
|
CALLALIAS(cs, result);
|
|
continue;
|
|
}
|
|
#undef SKIPARGS
|
|
|
|
#define SKIPARGS(offset) offset-1
|
|
case CODE_CALLU|RET_NULL:
|
|
case CODE_CALLU|RET_STR:
|
|
case CODE_CALLU|RET_FLOAT:
|
|
case CODE_CALLU|RET_INT: {
|
|
int callargs = op >> 8, offset = numargs - callargs;
|
|
TaggedValue &idarg = args[offset - 1];
|
|
if (idarg.get_type() != VAL_STR && idarg.get_type() != VAL_MACRO && idarg.get_type() != VAL_CSTR) {
|
|
litval:
|
|
result.cleanup();
|
|
result = idarg;
|
|
force_arg(result, op & CODE_RET_MASK);
|
|
while (--numargs >= offset) args[numargs].cleanup();
|
|
continue;
|
|
}
|
|
Ident *id = cs.idents.at(idarg.s);
|
|
if (!id) {
|
|
noid:
|
|
if (cs_check_num(idarg.s)) goto litval;
|
|
cs_debug_code(cs, "unknown command: %s", idarg.s);
|
|
result.force_null();
|
|
FORCERESULT;
|
|
}
|
|
result.force_null();
|
|
switch (id->type) {
|
|
default:
|
|
if (!id->cb_cftv) FORCERESULT;
|
|
/* fallthrough */
|
|
case ID_COMMAND:
|
|
idarg.cleanup();
|
|
callcommand(cs, id, &args[offset], result, callargs);
|
|
force_arg(result, op & CODE_RET_MASK);
|
|
numargs = offset - 1;
|
|
continue;
|
|
case ID_LOCAL: {
|
|
IdentStack locals[MaxArguments];
|
|
idarg.cleanup();
|
|
for (ostd::Size j = 0; j < ostd::Size(callargs); ++j) cs.force_ident(args[offset + j])->push_alias(locals[j]);
|
|
code = runcode(cs, code, result);
|
|
for (ostd::Size j = 0; j < ostd::Size(callargs); ++j) args[offset + j].id->pop_alias();
|
|
goto exit;
|
|
}
|
|
case ID_VAR:
|
|
if (callargs <= 0) cs.print_var(id);
|
|
else cs.set_var_int_checked(id, ostd::iter(&args[offset], callargs));
|
|
FORCERESULT;
|
|
case ID_FVAR:
|
|
if (callargs <= 0) cs.print_var(id);
|
|
else cs.set_var_float_checked(id, args[offset].force_float());
|
|
FORCERESULT;
|
|
case ID_SVAR:
|
|
if (callargs <= 0) cs.print_var(id);
|
|
else cs.set_var_str_checked(id, args[offset].force_str());
|
|
FORCERESULT;
|
|
case ID_ALIAS:
|
|
if (id->index < MaxArguments && !(cs.stack->usedargs & (1 << id->index))) FORCERESULT;
|
|
if (id->get_valtype() == VAL_NULL) goto noid;
|
|
idarg.cleanup();
|
|
CALLALIAS(cs, result);
|
|
continue;
|
|
}
|
|
}
|
|
#undef SKIPARGS
|
|
}
|
|
}
|
|
exit:
|
|
--rundepth;
|
|
return code;
|
|
}
|
|
|
|
void CsState::run_ret(Bytecode const *code, TaggedValue &ret) {
|
|
runcode(*this, reinterpret_cast<ostd::Uint32 const *>(code), ret);
|
|
}
|
|
|
|
void CsState::run_ret(ostd::ConstCharRange code, TaggedValue &ret) {
|
|
GenState gs(*this);
|
|
gs.code.reserve(64);
|
|
/* FIXME range */
|
|
gs.gen_main(code.data(), VAL_ANY);
|
|
runcode(*this, gs.code.data() + 1, ret);
|
|
if (int(gs.code[0]) >= 0x100)
|
|
gs.code.disown();
|
|
}
|
|
|
|
/* TODO */
|
|
void CsState::run_ret(Ident *id, TvalRange args, TaggedValue &ret) {
|
|
int nargs = int(args.size());
|
|
ret.set_null();
|
|
++rundepth;
|
|
if (rundepth > MaxRunDepth) cs_debug_code(*this, "exceeded recursion limit");
|
|
else if (id) switch (id->type) {
|
|
default:
|
|
if (!id->cb_cftv) break;
|
|
/* fallthrough */
|
|
case ID_COMMAND:
|
|
if (nargs < id->numargs) {
|
|
TaggedValue buf[MaxArguments];
|
|
memcpy(buf, args.data(), args.size() * sizeof(TaggedValue));
|
|
callcommand(*this, id, buf, ret, nargs, false);
|
|
} else callcommand(*this, id, args.data(), ret, nargs, false);
|
|
nargs = 0;
|
|
break;
|
|
case ID_VAR:
|
|
if (args.empty()) print_var(id);
|
|
else set_var_int_checked(id, args);
|
|
break;
|
|
case ID_FVAR:
|
|
if (args.empty()) print_var(id);
|
|
else set_var_float_checked(id, args[0].force_float());
|
|
break;
|
|
case ID_SVAR:
|
|
if (args.empty()) print_var(id);
|
|
else set_var_str_checked(id, args[0].force_str());
|
|
break;
|
|
case ID_ALIAS:
|
|
if (id->index < MaxArguments && !(stack->usedargs & (1 << id->index))) break;
|
|
if (id->get_valtype() == VAL_NULL) break;
|
|
#define callargs nargs
|
|
#define offset 0
|
|
#define op RET_NULL
|
|
#define SKIPARGS(offset) offset
|
|
CALLALIAS(*this, ret);
|
|
#undef callargs
|
|
#undef offset
|
|
#undef op
|
|
#undef SKIPARGS
|
|
break;
|
|
}
|
|
free_args(args.data(), nargs, 0);
|
|
--rundepth;
|
|
}
|
|
|
|
ostd::String CsState::run_str(Bytecode const *code) {
|
|
TaggedValue ret;
|
|
run_ret(code, ret);
|
|
ostd::String s = ret.get_str();
|
|
ret.cleanup();
|
|
return s;
|
|
}
|
|
|
|
ostd::String CsState::run_str(ostd::ConstCharRange code) {
|
|
TaggedValue ret;
|
|
run_ret(code, ret);
|
|
ostd::String s = ret.get_str();
|
|
ret.cleanup();
|
|
return s;
|
|
}
|
|
|
|
ostd::String CsState::run_str(Ident *id, TvalRange args) {
|
|
TaggedValue ret;
|
|
run_ret(id, args, ret);
|
|
ostd::String s = ret.get_str();
|
|
ret.cleanup();
|
|
return s;
|
|
}
|
|
|
|
int CsState::run_int(Bytecode const *code) {
|
|
TaggedValue ret;
|
|
run_ret(code, ret);
|
|
int i = ret.get_int();
|
|
ret.cleanup();
|
|
return i;
|
|
}
|
|
|
|
int CsState::run_int(ostd::ConstCharRange code) {
|
|
TaggedValue ret;
|
|
run_ret(code, ret);
|
|
int i = ret.get_int();
|
|
ret.cleanup();
|
|
return i;
|
|
}
|
|
|
|
int CsState::run_int(Ident *id, TvalRange args) {
|
|
TaggedValue ret;
|
|
run_ret(id, args, ret);
|
|
int i = ret.get_int();
|
|
ret.cleanup();
|
|
return i;
|
|
}
|
|
|
|
float CsState::run_float(Bytecode const *code) {
|
|
TaggedValue ret;
|
|
run_ret(code, ret);
|
|
float f = ret.get_float();
|
|
ret.cleanup();
|
|
return f;
|
|
}
|
|
|
|
float CsState::run_float(ostd::ConstCharRange code) {
|
|
TaggedValue ret;
|
|
run_ret(code, ret);
|
|
float f = ret.get_float();
|
|
ret.cleanup();
|
|
return f;
|
|
}
|
|
|
|
float CsState::run_float(Ident *id, TvalRange args) {
|
|
TaggedValue ret;
|
|
run_ret(id, args, ret);
|
|
float f = ret.get_float();
|
|
ret.cleanup();
|
|
return f;
|
|
}
|
|
|
|
bool CsState::run_bool(Bytecode const *code) {
|
|
TaggedValue ret;
|
|
run_ret(code, ret);
|
|
bool b = ret.get_bool();
|
|
ret.cleanup();
|
|
return b;
|
|
}
|
|
|
|
bool CsState::run_bool(ostd::ConstCharRange code) {
|
|
TaggedValue ret;
|
|
run_ret(code, ret);
|
|
bool b = ret.get_bool();
|
|
ret.cleanup();
|
|
return b;
|
|
}
|
|
|
|
bool CsState::run_bool(Ident *id, TvalRange args) {
|
|
TaggedValue ret;
|
|
run_ret(id, args, ret);
|
|
bool b = ret.get_bool();
|
|
ret.cleanup();
|
|
return b;
|
|
}
|
|
|
|
bool CsState::run_file(ostd::ConstCharRange fname) {
|
|
ostd::ConstCharRange oldsrcfile = src_file, oldsrcstr = src_str;
|
|
ostd::Box<char[]> buf;
|
|
ostd::Size len;
|
|
|
|
ostd::FileStream f(fname, ostd::StreamMode::read);
|
|
if (!f.is_open())
|
|
return false;
|
|
|
|
len = f.size();
|
|
buf = ostd::make_box<char[]>(len + 1);
|
|
if (!buf || f.get(buf.get(), len) != len) {
|
|
return false;
|
|
}
|
|
buf[len] = '\0';
|
|
|
|
src_file = fname;
|
|
src_str = ostd::ConstCharRange(buf.get(), len);
|
|
run_int(src_str);
|
|
src_file = oldsrcfile;
|
|
src_str = oldsrcstr;
|
|
return true;
|
|
}
|
|
|
|
} /* namespace cscript */
|