mirror of
https://github.com/pocketpy/pocketpy
synced 2025-10-20 03:20:18 +00:00
方而静
031f189a4a
* Make SourceData c11 * make it compile * add a marco * follow up rename of c11_vetor__push * remove isascii marco * fix empty function name handling * change enum back * Remove trival accessor * make pkpy_Str__take_buf hidden * make it compile * remove rcptr and use shared_ptr instead * change enum name in C++ code back * fix type problem * remove strdup polyfill * remove xmake * ...
806 lines
31 KiB
C++
806 lines
31 KiB
C++
#include "pocketpy/compiler/lexer.hpp"
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#include "pocketpy/common/gil.hpp"
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#include "pocketpy/common/version.h"
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#include "pocketpy/common/str.h"
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#include <cstdarg>
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namespace pkpy {
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// clang-format off
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static const uint32_t kLoRangeA[] = {170,186,443,448,660,1488,1519,1568,1601,1646,1649,1749,1774,1786,1791,1808,1810,1869,1969,1994,2048,2112,2144,2208,2230,2308,2365,2384,2392,2418,2437,2447,2451,2474,2482,2486,2493,2510,2524,2527,2544,2556,2565,2575,2579,2602,2610,2613,2616,2649,2654,2674,2693,2703,2707,2730,2738,2741,2749,2768,2784,2809,2821,2831,2835,2858,2866,2869,2877,2908,2911,2929,2947,2949,2958,2962,2969,2972,2974,2979,2984,2990,3024,3077,3086,3090,3114,3133,3160,3168,3200,3205,3214,3218,3242,3253,3261,3294,3296,3313,3333,3342,3346,3389,3406,3412,3423,3450,3461,3482,3507,3517,3520,3585,3634,3648,3713,3716,3718,3724,3749,3751,3762,3773,3776,3804,3840,3904,3913,3976,4096,4159,4176,4186,4193,4197,4206,4213,4238,4352,4682,4688,4696,4698,4704,4746,4752,4786,4792,4800,4802,4808,4824,4882,4888,4992,5121,5743,5761,5792,5873,5888,5902,5920,5952,5984,5998,6016,6108,6176,6212,6272,6279,6314,6320,6400,6480,6512,6528,6576,6656,6688,6917,6981,7043,7086,7098,7168,7245,7258,7401,7406,7413,7418,8501,11568,11648,11680,11688,11696,11704,11712,11720,11728,11736,12294,12348,12353,12447,12449,12543,12549,12593,12704,12784,13312,19968,40960,40982,42192,42240,42512,42538,42606,42656,42895,42999,43003,43011,43015,43020,43072,43138,43250,43259,43261,43274,43312,43360,43396,43488,43495,43514,43520,43584,43588,43616,43633,43642,43646,43697,43701,43705,43712,43714,43739,43744,43762,43777,43785,43793,43808,43816,43968,44032,55216,55243,63744,64112,64285,64287,64298,64312,64318,64320,64323,64326,64467,64848,64914,65008,65136,65142,65382,65393,65440,65474,65482,65490,65498,65536,65549,65576,65596,65599,65616,65664,66176,66208,66304,66349,66370,66384,66432,66464,66504,66640,66816,66864,67072,67392,67424,67584,67592,67594,67639,67644,67647,67680,67712,67808,67828,67840,67872,67968,68030,68096,68112,68117,68121,68192,68224,68288,68297,68352,68416,68448,68480,68608,68864,69376,69415,69424,69600,69635,69763,69840,69891,69956,69968,70006,70019,70081,70106,70108,70144,70163,70272,70280,70282,70287,70303,70320,70405,70415,70419,70442,70450,70453,70461,70480,70493,70656,70727,70751,70784,70852,70855,71040,71128,71168,71236,71296,71352,71424,71680,71935,72096,72106,72161,72163,72192,72203,72250,72272,72284,72349,72384,72704,72714,72768,72818,72960,72968,72971,73030,73056,73063,73066,73112,73440,73728,74880,77824,82944,92160,92736,92880,92928,93027,93053,93952,94032,94208,100352,110592,110928,110948,110960,113664,113776,113792,113808,123136,123214,123584,124928,126464,126469,126497,126500,126503,126505,126516,126521,126523,126530,126535,126537,126539,126541,126545,126548,126551,126553,126555,126557,126559,126561,126564,126567,126572,126580,126585,126590,126592,126603,126625,126629,126635,131072,173824,177984,178208,183984,194560};
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static const uint32_t kLoRangeB[] = {170,186,443,451,660,1514,1522,1599,1610,1647,1747,1749,1775,1788,1791,1808,1839,1957,1969,2026,2069,2136,2154,2228,2237,2361,2365,2384,2401,2432,2444,2448,2472,2480,2482,2489,2493,2510,2525,2529,2545,2556,2570,2576,2600,2608,2611,2614,2617,2652,2654,2676,2701,2705,2728,2736,2739,2745,2749,2768,2785,2809,2828,2832,2856,2864,2867,2873,2877,2909,2913,2929,2947,2954,2960,2965,2970,2972,2975,2980,2986,3001,3024,3084,3088,3112,3129,3133,3162,3169,3200,3212,3216,3240,3251,3257,3261,3294,3297,3314,3340,3344,3386,3389,3406,3414,3425,3455,3478,3505,3515,3517,3526,3632,3635,3653,3714,3716,3722,3747,3749,3760,3763,3773,3780,3807,3840,3911,3948,3980,4138,4159,4181,4189,4193,4198,4208,4225,4238,4680,4685,4694,4696,4701,4744,4749,4784,4789,4798,4800,4805,4822,4880,4885,4954,5007,5740,5759,5786,5866,5880,5900,5905,5937,5969,5996,6000,6067,6108,6210,6264,6276,6312,6314,6389,6430,6509,6516,6571,6601,6678,6740,6963,6987,7072,7087,7141,7203,7247,7287,7404,7411,7414,7418,8504,11623,11670,11686,11694,11702,11710,11718,11726,11734,11742,12294,12348,12438,12447,12538,12543,12591,12686,12730,12799,19893,40943,40980,42124,42231,42507,42527,42539,42606,42725,42895,42999,43009,43013,43018,43042,43123,43187,43255,43259,43262,43301,43334,43388,43442,43492,43503,43518,43560,43586,43595,43631,43638,43642,43695,43697,43702,43709,43712,43714,43740,43754,43762,43782,43790,43798,43814,43822,44002,55203,55238,55291,64109,64217,64285,64296,64310,64316,64318,64321,64324,64433,64829,64911,64967,65019,65140,65276,65391,65437,65470,65479,65487,65495,65500,65547,65574,65594,65597,65613,65629,65786,66204,66256,66335,66368,66377,66421,66461,66499,66511,66717,66855,66915,67382,67413,67431,67589,67592,67637,67640,67644,67669,67702,67742,67826,67829,67861,67897,68023,68031,68096,68115,68119,68149,68220,68252,68295,68324,68405,68437,68466,68497,68680,68899,69404,69415,69445,69622,69687,69807,69864,69926,69956,70002,70006,70066,70084,70106,70108,70161,70187,70278,70280,70285,70301,70312,70366,70412,70416,70440,70448,70451,70457,70461,70480,70497,70708,70730,70751,70831,70853,70855,71086,71131,71215,71236,71338,71352,71450,71723,71935,72103,72144,72161,72163,72192,72242,72250,72272,72329,72349,72440,72712,72750,72768,72847,72966,72969,73008,73030,73061,73064,73097,73112,73458,74649,75075,78894,83526,92728,92766,92909,92975,93047,93071,94026,94032,100343,101106,110878,110930,110951,111355,113770,113788,113800,113817,123180,123214,123627,125124,126467,126495,126498,126500,126503,126514,126519,126521,126523,126530,126535,126537,126539,126543,126546,126548,126551,126553,126555,126557,126559,126562,126564,126570,126578,126583,126588,126590,126601,126619,126627,126633,126651,173782,177972,178205,183969,191456,195101};
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// clang-format on
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static bool is_possible_number_char(char c) noexcept{
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switch(c) {
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// clang-format off
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case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9':
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case 'a': case 'b': case 'c': case 'd': case 'e': case 'f':
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case 'A': case 'B': case 'C': case 'D': case 'E': case 'F':
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case '.': case 'L': case 'x': case 'o': case 'j':
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return true;
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default: return false;
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// clang-format on
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}
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}
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static bool is_unicode_Lo_char(uint32_t c) noexcept{
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// open a hole for carrot
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if(c == U'🥕') return true;
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auto index = std::lower_bound(kLoRangeA, kLoRangeA + 476, c) - kLoRangeA;
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if(c == kLoRangeA[index]) return true;
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index -= 1;
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if(index < 0) return false;
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return c >= kLoRangeA[index] && c <= kLoRangeB[index];
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}
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bool Lexer::match_n_chars(int n, char c0) noexcept{
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const char* c = curr_char;
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for(int i = 0; i < n; i++) {
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if(*c == '\0') return false;
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if(*c != c0) return false;
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c++;
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}
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for(int i = 0; i < n; i++)
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eatchar_include_newline();
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return true;
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}
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bool Lexer::match_string(const char* s) noexcept{
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int s_len = strlen(s);
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bool ok = strncmp(curr_char, s, s_len) == 0;
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if(ok)
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for(int i = 0; i < s_len; i++)
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eatchar_include_newline();
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return ok;
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}
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int Lexer::eat_spaces() noexcept{
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int count = 0;
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while(true) {
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switch(peekchar()) {
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case ' ': count += 1; break;
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case '\t': count += 4; break;
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default: return count;
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}
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eatchar();
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}
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}
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bool Lexer::eat_indentation() noexcept{
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if(brackets_level > 0) return true;
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int spaces = eat_spaces();
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if(peekchar() == '#') skip_line_comment();
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if(peekchar() == '\0' || peekchar() == '\n') return true;
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// https://docs.python.org/3/reference/lexical_analysis.html#indentation
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if(spaces > indents.back()) {
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indents.push_back(spaces);
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nexts.push_back(Token{TK("@indent"), token_start, 0, current_line, brackets_level, {}});
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} else if(spaces < indents.back()) {
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while(spaces < indents.back()) {
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indents.pop_back();
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nexts.push_back(Token{TK("@dedent"), token_start, 0, current_line, brackets_level, {}});
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}
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if(spaces != indents.back()) { return false; }
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}
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return true;
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}
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char Lexer::eatchar() noexcept{
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char c = peekchar();
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assert(c != '\n'); // eatchar() cannot consume a newline
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curr_char++;
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return c;
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}
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char Lexer::eatchar_include_newline() noexcept{
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char c = peekchar();
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curr_char++;
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if(c == '\n') {
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current_line++;
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c11_vector__push(const char*, &src->line_starts, curr_char);
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}
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return c;
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}
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Error* Lexer::eat_name() noexcept{
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curr_char--;
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while(true) {
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unsigned char c = peekchar();
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int u8bytes = pkpy_utils__u8_header(c, true);
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if(u8bytes == 0) return SyntaxError("invalid char: %c", c);
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if(u8bytes == 1) {
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if(isalpha(c) || c == '_' || isdigit(c)) {
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curr_char++;
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continue;
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} else {
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break;
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}
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}
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// handle multibyte char
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Str u8str(curr_char, u8bytes);
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if(u8str.size != u8bytes) return SyntaxError("invalid utf8 sequence: %s", u8str.c_str());
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uint32_t value = 0;
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for(int k = 0; k < u8bytes; k++) {
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uint8_t b = u8str[k];
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if(k == 0) {
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if(u8bytes == 2)
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value = (b & 0b00011111) << 6;
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else if(u8bytes == 3)
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value = (b & 0b00001111) << 12;
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else if(u8bytes == 4)
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value = (b & 0b00000111) << 18;
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} else {
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value |= (b & 0b00111111) << (6 * (u8bytes - k - 1));
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}
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}
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if(is_unicode_Lo_char(value))
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curr_char += u8bytes;
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else
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break;
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}
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int length = (int)(curr_char - token_start);
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if(length == 0) return SyntaxError("@id contains invalid char");
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std::string_view name(token_start, length);
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if(src->mode == JSON_MODE) {
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if(name == "true") {
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add_token(TK("True"));
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} else if(name == "false") {
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add_token(TK("False"));
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} else if(name == "null") {
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add_token(TK("None"));
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} else {
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return SyntaxError("invalid JSON token");
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}
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return NULL;
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}
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const auto KW_BEGIN = kTokens + TK("False");
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const auto KW_END = kTokens + kTokenCount;
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auto it = std::lower_bound(KW_BEGIN, KW_END, name);
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if(it != KW_END && *it == name) {
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add_token(it - kTokens);
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} else {
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add_token(TK("@id"));
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}
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return NULL;
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}
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void Lexer::skip_line_comment() noexcept{
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char c;
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while((c = peekchar()) != '\0') {
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if(c == '\n') return;
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eatchar();
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}
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}
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bool Lexer::matchchar(char c) noexcept{
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if(peekchar() != c) return false;
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eatchar_include_newline();
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return true;
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}
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void Lexer::add_token(TokenIndex type, TokenValue value) noexcept{
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switch(type) {
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case TK("{"):
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case TK("["):
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case TK("("): brackets_level++; break;
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case TK(")"):
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case TK("]"):
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case TK("}"): brackets_level--; break;
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}
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auto token = Token{type,
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token_start,
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(int)(curr_char - token_start),
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current_line - ((type == TK("@eol")) ? 1 : 0),
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brackets_level,
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value};
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// handle "not in", "is not", "yield from"
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if(!nexts.empty()) {
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auto& back = nexts.back();
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if(back.type == TK("not") && type == TK("in")) {
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back.type = TK("not in");
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return;
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}
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if(back.type == TK("is") && type == TK("not")) {
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back.type = TK("is not");
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return;
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}
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if(back.type == TK("yield") && type == TK("from")) {
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back.type = TK("yield from");
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return;
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}
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nexts.push_back(token);
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}
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}
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void Lexer::add_token_2(char c, TokenIndex one, TokenIndex two) noexcept{
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if(matchchar(c))
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add_token(two);
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else
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add_token(one);
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}
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Error* Lexer::eat_string_until(char quote, bool raw, Str* out) noexcept{
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bool quote3 = match_n_chars(2, quote);
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small_vector_2<char, 32> buff;
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while(true) {
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char c = eatchar_include_newline();
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if(c == quote) {
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if(quote3 && !match_n_chars(2, quote)) {
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buff.push_back(c);
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continue;
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}
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break;
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}
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if(c == '\0') {
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if(quote3 && src->mode == REPL_MODE) return NeedMoreLines();
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return SyntaxError("EOL while scanning string literal");
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}
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if(c == '\n') {
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if(!quote3)
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return SyntaxError("EOL while scanning string literal");
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else {
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buff.push_back(c);
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continue;
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}
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}
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if(!raw && c == '\\') {
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switch(eatchar_include_newline()) {
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case '"': buff.push_back('"'); break;
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case '\'': buff.push_back('\''); break;
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case '\\': buff.push_back('\\'); break;
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case 'n': buff.push_back('\n'); break;
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case 'r': buff.push_back('\r'); break;
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case 't': buff.push_back('\t'); break;
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case 'b': buff.push_back('\b'); break;
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case 'x': {
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char hex[3] = {eatchar(), eatchar(), '\0'};
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size_t parsed;
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char code;
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try {
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code = (char)std::stoi(hex, &parsed, 16);
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} catch(...) {
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return SyntaxError("invalid hex char");
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}
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if(parsed != 2) return SyntaxError("invalid hex char");
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buff.push_back(code);
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} break;
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default: return SyntaxError("invalid escape char");
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}
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} else {
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buff.push_back(c);
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}
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}
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*out = Str(buff.data(), buff.size());
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return nullptr;
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}
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Error* Lexer::eat_string(char quote, StringType type) noexcept{
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Str s;
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Error* err = eat_string_until(quote, type == StringType::RAW_STRING, &s);
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if(err) return err;
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if(type == StringType::F_STRING) {
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add_token(TK("@fstr"), s);
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}else if(type == StringType::NORMAL_BYTES) {
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add_token(TK("@bytes"), s);
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}else{
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add_token(TK("@str"), s);
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}
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return NULL;
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}
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Error* Lexer::eat_number() noexcept{
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const char* i = token_start;
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while(is_possible_number_char(*i))
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i++;
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bool is_scientific_notation = false;
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if(*(i - 1) == 'e' && (*i == '+' || *i == '-')) {
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i++;
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while(isdigit(*i) || *i == 'j')
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i++;
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is_scientific_notation = true;
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}
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std::string_view text(token_start, i - token_start);
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this->curr_char = i;
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if(text[0] != '.' && !is_scientific_notation) {
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// try long
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if(i[-1] == 'L') {
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add_token(TK("@long"));
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return NULL;
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}
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// try integer
|
|
i64 int_out;
|
|
switch(parse_uint(text, &int_out, -1)) {
|
|
case IntParsingResult::Success: add_token(TK("@num"), int_out); return NULL;
|
|
case IntParsingResult::Overflow: return SyntaxError("int literal is too large");
|
|
case IntParsingResult::Failure: break; // do nothing
|
|
}
|
|
}
|
|
|
|
// try float
|
|
double float_out;
|
|
char* p_end;
|
|
try {
|
|
float_out = std::strtod(text.data(), &p_end);
|
|
} catch(...) {
|
|
return SyntaxError("invalid number literal");
|
|
}
|
|
|
|
if(p_end == text.data() + text.size()) {
|
|
add_token(TK("@num"), (f64)float_out);
|
|
return NULL;
|
|
}
|
|
|
|
if(i[-1] == 'j' && p_end == text.data() + text.size() - 1) {
|
|
add_token(TK("@imag"), (f64)float_out);
|
|
return NULL;
|
|
}
|
|
|
|
return SyntaxError("invalid number literal");
|
|
}
|
|
|
|
Error* Lexer::lex_one_token(bool* eof) noexcept{
|
|
*eof = false;
|
|
while(peekchar() != '\0') {
|
|
token_start = curr_char;
|
|
char c = eatchar_include_newline();
|
|
switch(c) {
|
|
case '\'':
|
|
case '"': {
|
|
Error* err = eat_string(c, StringType::NORMAL_STRING);
|
|
if(err) return err;
|
|
return NULL;
|
|
}
|
|
case '#': skip_line_comment(); break;
|
|
case '~': add_token(TK("~")); return NULL;
|
|
case '{': add_token(TK("{")); return NULL;
|
|
case '}': add_token(TK("}")); return NULL;
|
|
case ',': add_token(TK(",")); return NULL;
|
|
case ':': add_token(TK(":")); return NULL;
|
|
case ';': add_token(TK(";")); return NULL;
|
|
case '(': add_token(TK("(")); return NULL;
|
|
case ')': add_token(TK(")")); return NULL;
|
|
case '[': add_token(TK("[")); return NULL;
|
|
case ']': add_token(TK("]")); return NULL;
|
|
case '@': add_token(TK("@")); return NULL;
|
|
case '\\': {
|
|
// line continuation character
|
|
char c = eatchar_include_newline();
|
|
if(c != '\n') {
|
|
if(src->mode == REPL_MODE && c == '\0') return NeedMoreLines();
|
|
return SyntaxError("expected newline after line continuation character");
|
|
}
|
|
eat_spaces();
|
|
return NULL;
|
|
}
|
|
case '%': add_token_2('=', TK("%"), TK("%=")); return NULL;
|
|
case '&': add_token_2('=', TK("&"), TK("&=")); return NULL;
|
|
case '|': add_token_2('=', TK("|"), TK("|=")); return NULL;
|
|
case '^': add_token_2('=', TK("^"), TK("^=")); return NULL;
|
|
case '.': {
|
|
if(matchchar('.')) {
|
|
if(matchchar('.')) {
|
|
add_token(TK("..."));
|
|
} else {
|
|
add_token(TK(".."));
|
|
}
|
|
} else {
|
|
char next_char = peekchar();
|
|
if(next_char >= '0' && next_char <= '9') {
|
|
Error* err = eat_number();
|
|
if(err) return err;
|
|
} else {
|
|
add_token(TK("."));
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
case '=': add_token_2('=', TK("="), TK("==")); return NULL;
|
|
case '+':
|
|
if(matchchar('+')) {
|
|
add_token(TK("++"));
|
|
} else {
|
|
add_token_2('=', TK("+"), TK("+="));
|
|
}
|
|
return NULL;
|
|
case '>': {
|
|
if(matchchar('='))
|
|
add_token(TK(">="));
|
|
else if(matchchar('>'))
|
|
add_token_2('=', TK(">>"), TK(">>="));
|
|
else
|
|
add_token(TK(">"));
|
|
return NULL;
|
|
}
|
|
case '<': {
|
|
if(matchchar('='))
|
|
add_token(TK("<="));
|
|
else if(matchchar('<'))
|
|
add_token_2('=', TK("<<"), TK("<<="));
|
|
else
|
|
add_token(TK("<"));
|
|
return NULL;
|
|
}
|
|
case '-': {
|
|
if(matchchar('-')) {
|
|
add_token(TK("--"));
|
|
} else {
|
|
if(matchchar('='))
|
|
add_token(TK("-="));
|
|
else if(matchchar('>'))
|
|
add_token(TK("->"));
|
|
else
|
|
add_token(TK("-"));
|
|
}
|
|
return NULL;
|
|
}
|
|
case '!':
|
|
if(matchchar('=')){
|
|
add_token(TK("!="));
|
|
}else{
|
|
Error* err = SyntaxError("expected '=' after '!'");
|
|
if(err) return err;
|
|
}
|
|
break;
|
|
case '*':
|
|
if(matchchar('*')) {
|
|
add_token(TK("**")); // '**'
|
|
} else {
|
|
add_token_2('=', TK("*"), TK("*="));
|
|
}
|
|
return NULL;
|
|
case '/':
|
|
if(matchchar('/')) {
|
|
add_token_2('=', TK("//"), TK("//="));
|
|
} else {
|
|
add_token_2('=', TK("/"), TK("/="));
|
|
}
|
|
return NULL;
|
|
case ' ':
|
|
case '\t': eat_spaces(); break;
|
|
case '\n': {
|
|
add_token(TK("@eol"));
|
|
if(!eat_indentation()){
|
|
return IndentationError("unindent does not match any outer indentation level");
|
|
}
|
|
return NULL;
|
|
}
|
|
default: {
|
|
if(c == 'f') {
|
|
if(matchchar('\'')) return eat_string('\'', StringType::F_STRING);
|
|
if(matchchar('"')) return eat_string('"', StringType::F_STRING);
|
|
} else if(c == 'r') {
|
|
if(matchchar('\'')) return eat_string('\'', StringType::RAW_STRING);
|
|
if(matchchar('"')) return eat_string('"', StringType::RAW_STRING);
|
|
} else if(c == 'b') {
|
|
if(matchchar('\'')) return eat_string('\'', StringType::NORMAL_BYTES);
|
|
if(matchchar('"')) return eat_string('"', StringType::NORMAL_BYTES);
|
|
}
|
|
if(c >= '0' && c <= '9') return eat_number();
|
|
return eat_name();
|
|
}
|
|
}
|
|
}
|
|
|
|
token_start = curr_char;
|
|
while(indents.size() > 1) {
|
|
indents.pop_back();
|
|
add_token(TK("@dedent"));
|
|
return NULL;
|
|
}
|
|
add_token(TK("@eof"));
|
|
*eof = true;
|
|
return NULL;
|
|
}
|
|
|
|
Error* Lexer::_error(bool lexer_err, const char* type, const char* msg, va_list* args, i64 userdata) noexcept{
|
|
PK_THREAD_LOCAL Error err;
|
|
err.type = type;
|
|
err.src = src;
|
|
if(lexer_err){
|
|
err.lineno = current_line;
|
|
err.cursor = curr_char;
|
|
if(*curr_char == '\n') {
|
|
err.lineno--;
|
|
err.cursor--;
|
|
}
|
|
}else{
|
|
err.lineno = -1;
|
|
err.cursor = NULL;
|
|
}
|
|
if(args){
|
|
vsnprintf(err.msg, sizeof(err.msg), msg, *args);
|
|
}else{
|
|
std::strncpy(err.msg, msg, sizeof(err.msg));
|
|
}
|
|
err.userdata = userdata;
|
|
return &err;
|
|
}
|
|
|
|
Error* Lexer::SyntaxError(const char* fmt, ...) noexcept{
|
|
va_list args;
|
|
va_start(args, fmt);
|
|
Error* err = _error(true, "SyntaxError", fmt, &args);
|
|
va_end(args);
|
|
return err;
|
|
}
|
|
|
|
Lexer::Lexer(VM* vm, std::shared_ptr<SourceData> src) noexcept : vm(vm), src(src){
|
|
this->token_start = pkpy_Str__data(&src->source);
|
|
this->curr_char = pkpy_Str__data(&src->source);
|
|
}
|
|
|
|
Error* Lexer::run() noexcept{
|
|
assert(!this->used);
|
|
this->used = true;
|
|
if(src->is_precompiled) {
|
|
return from_precompiled();
|
|
}
|
|
// push initial tokens
|
|
this->nexts.push_back(Token{TK("@sof"), token_start, 0, current_line, brackets_level, {}});
|
|
this->indents.push_back(0);
|
|
|
|
bool eof = false;
|
|
while(!eof) {
|
|
Error* err = lex_one_token(&eof);
|
|
if(err) return err;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
Error* Lexer::from_precompiled() noexcept{
|
|
TokenDeserializer deserializer(pkpy_Str__data(&src->source));
|
|
deserializer.curr += 5; // skip "pkpy:"
|
|
std::string_view version = deserializer.read_string('\n');
|
|
|
|
if(version != PK_VERSION){
|
|
return SyntaxError("precompiled version mismatch");
|
|
}
|
|
if(deserializer.read_uint('\n') != (i64)src->mode){
|
|
return SyntaxError("precompiled mode mismatch");
|
|
}
|
|
|
|
int count = deserializer.read_count();
|
|
auto precompiled_tokens = &src->_precompiled_tokens;
|
|
for(int i = 0; i < count; i++) {
|
|
c11_vector__push(Str, precompiled_tokens, Str(deserializer.read_string('\n')));
|
|
}
|
|
|
|
count = deserializer.read_count();
|
|
for(int i = 0; i < count; i++) {
|
|
Token t;
|
|
t.type = (unsigned char)deserializer.read_uint(',');
|
|
if(is_raw_string_used(t.type)) {
|
|
i64 index = deserializer.read_uint(',');
|
|
t.start = c11__getitem(Str, precompiled_tokens, index).c_str();
|
|
t.length = c11__getitem(Str, precompiled_tokens, index).size;
|
|
} else {
|
|
t.start = nullptr;
|
|
t.length = 0;
|
|
}
|
|
|
|
if(deserializer.match_char(',')) {
|
|
t.line = nexts.back().line;
|
|
} else {
|
|
t.line = (int)deserializer.read_uint(',');
|
|
}
|
|
|
|
if(deserializer.match_char(',')) {
|
|
t.brackets_level = nexts.back().brackets_level;
|
|
} else {
|
|
t.brackets_level = (int)deserializer.read_uint(',');
|
|
}
|
|
|
|
char type = deserializer.read_char();
|
|
switch(type) {
|
|
case 'I': t.value = deserializer.read_uint('\n'); break;
|
|
case 'F': t.value = deserializer.read_float('\n'); break;
|
|
case 'S': t.value = deserializer.read_string_from_hex('\n'); break;
|
|
default: t.value = {}; break;
|
|
}
|
|
nexts.push_back(t);
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
Error* Lexer::precompile(Str* out) noexcept{
|
|
assert(!src->is_precompiled);
|
|
Error* err = run();
|
|
if(err) return err;
|
|
SStream ss;
|
|
ss << "pkpy:" PK_VERSION << '\n'; // L1: version string
|
|
ss << (int)src->mode << '\n'; // L2: mode
|
|
|
|
small_map<std::string_view, int> token_indices;
|
|
for(auto token: nexts) {
|
|
if(is_raw_string_used(token.type)) {
|
|
if(!token_indices.contains(token.sv())) {
|
|
token_indices.insert(token.sv(), 0);
|
|
// assert no '\n' in token.sv()
|
|
for(char c: token.sv())
|
|
assert(c != '\n');
|
|
}
|
|
}
|
|
}
|
|
ss << "=" << (int)token_indices.size() << '\n'; // L3: raw string count
|
|
int index = 0;
|
|
for(auto& kv: token_indices) {
|
|
ss << kv.first << '\n'; // L4: raw strings
|
|
kv.second = index++;
|
|
}
|
|
|
|
ss << "=" << (int)nexts.size() << '\n'; // L5: token count
|
|
for(int i = 0; i < nexts.size(); i++) {
|
|
const Token& token = nexts[i];
|
|
ss << (int)token.type << ',';
|
|
if(is_raw_string_used(token.type)) { ss << token_indices[token.sv()] << ','; }
|
|
if(i > 0 && nexts[i - 1].line == token.line)
|
|
ss << ',';
|
|
else
|
|
ss << token.line << ',';
|
|
if(i > 0 && nexts[i - 1].brackets_level == token.brackets_level)
|
|
ss << ',';
|
|
else
|
|
ss << token.brackets_level << ',';
|
|
// visit token value
|
|
std::visit(
|
|
[&ss](auto&& arg) {
|
|
using T = std::decay_t<decltype(arg)>;
|
|
if constexpr(std::is_same_v<T, i64>) {
|
|
ss << 'I' << arg;
|
|
} else if constexpr(std::is_same_v<T, f64>) {
|
|
ss << 'F' << arg;
|
|
} else if constexpr(std::is_same_v<T, Str>) {
|
|
ss << 'S';
|
|
for(char c: arg)
|
|
ss.write_hex((unsigned char)c);
|
|
}
|
|
ss << '\n';
|
|
},
|
|
token.value);
|
|
}
|
|
*out = ss.str();
|
|
return NULL;
|
|
}
|
|
|
|
std::string_view TokenDeserializer::read_string(char c) noexcept{
|
|
const char* start = curr;
|
|
while(*curr != c)
|
|
curr++;
|
|
std::string_view retval(start, curr - start);
|
|
curr++; // skip the delimiter
|
|
return retval;
|
|
}
|
|
|
|
Str TokenDeserializer::read_string_from_hex(char c) noexcept{
|
|
std::string_view s = read_string(c);
|
|
char* buffer = (char*)std::malloc(s.size() / 2 + 1);
|
|
for(int i = 0; i < s.size(); i += 2) {
|
|
char c = 0;
|
|
if(s[i] >= '0' && s[i] <= '9')
|
|
c += s[i] - '0';
|
|
else if(s[i] >= 'a' && s[i] <= 'f')
|
|
c += s[i] - 'a' + 10;
|
|
else
|
|
assert(false);
|
|
c <<= 4;
|
|
if(s[i + 1] >= '0' && s[i + 1] <= '9')
|
|
c += s[i + 1] - '0';
|
|
else if(s[i + 1] >= 'a' && s[i + 1] <= 'f')
|
|
c += s[i + 1] - 'a' + 10;
|
|
else
|
|
assert(false);
|
|
buffer[i / 2] = c;
|
|
}
|
|
buffer[s.size() / 2] = 0;
|
|
return pair<char*, int>(buffer, s.size() / 2);
|
|
}
|
|
|
|
int TokenDeserializer::read_count() noexcept{
|
|
assert(*curr == '=');
|
|
curr++;
|
|
return read_uint('\n');
|
|
}
|
|
|
|
i64 TokenDeserializer::read_uint(char c) noexcept{
|
|
i64 out = 0;
|
|
while(*curr != c) {
|
|
out = out * 10 + (*curr - '0');
|
|
curr++;
|
|
}
|
|
curr++; // skip the delimiter
|
|
return out;
|
|
}
|
|
|
|
f64 TokenDeserializer::read_float(char c) noexcept{
|
|
std::string_view sv = read_string(c);
|
|
return std::stod(std::string(sv));
|
|
}
|
|
|
|
IntParsingResult parse_uint(std::string_view text, i64* out, int base) noexcept{
|
|
*out = 0;
|
|
|
|
if(base == -1) {
|
|
if(text.substr(0, 2) == "0b")
|
|
base = 2;
|
|
else if(text.substr(0, 2) == "0o")
|
|
base = 8;
|
|
else if(text.substr(0, 2) == "0x")
|
|
base = 16;
|
|
else
|
|
base = 10;
|
|
}
|
|
|
|
if(base == 10) {
|
|
// 10-base 12334
|
|
if(text.length() == 0) return IntParsingResult::Failure;
|
|
for(char c: text) {
|
|
if(c >= '0' && c <= '9') {
|
|
*out = (*out * 10) + (c - '0');
|
|
} else {
|
|
return IntParsingResult::Failure;
|
|
}
|
|
}
|
|
const std::string_view INT64_MAX_S = "9223372036854775807";
|
|
if(text.length() > INT64_MAX_S.length()) return IntParsingResult::Overflow;
|
|
return IntParsingResult::Success;
|
|
} else if(base == 2) {
|
|
// 2-base 0b101010
|
|
if(text.substr(0, 2) == "0b") text.remove_prefix(2);
|
|
if(text.length() == 0) return IntParsingResult::Failure;
|
|
for(char c: text) {
|
|
if(c == '0' || c == '1') {
|
|
*out = (*out << 1) | (c - '0');
|
|
} else {
|
|
return IntParsingResult::Failure;
|
|
}
|
|
}
|
|
const std::string_view INT64_MAX_S = "111111111111111111111111111111111111111111111111111111111111111";
|
|
if(text.length() > INT64_MAX_S.length()) return IntParsingResult::Overflow;
|
|
return IntParsingResult::Success;
|
|
} else if(base == 8) {
|
|
// 8-base 0o123
|
|
if(text.substr(0, 2) == "0o") text.remove_prefix(2);
|
|
if(text.length() == 0) return IntParsingResult::Failure;
|
|
for(char c: text) {
|
|
if(c >= '0' && c <= '7') {
|
|
*out = (*out << 3) | (c - '0');
|
|
} else {
|
|
return IntParsingResult::Failure;
|
|
}
|
|
}
|
|
const std::string_view INT64_MAX_S = "777777777777777777777";
|
|
if(text.length() > INT64_MAX_S.length()) return IntParsingResult::Overflow;
|
|
return IntParsingResult::Success;
|
|
} else if(base == 16) {
|
|
// 16-base 0x123
|
|
if(text.substr(0, 2) == "0x") text.remove_prefix(2);
|
|
if(text.length() == 0) return IntParsingResult::Failure;
|
|
for(char c: text) {
|
|
if(c >= '0' && c <= '9') {
|
|
*out = (*out << 4) | (c - '0');
|
|
} else if(c >= 'a' && c <= 'f') {
|
|
*out = (*out << 4) | (c - 'a' + 10);
|
|
} else if(c >= 'A' && c <= 'F') {
|
|
*out = (*out << 4) | (c - 'A' + 10);
|
|
} else {
|
|
return IntParsingResult::Failure;
|
|
}
|
|
}
|
|
const std::string_view INT64_MAX_S = "7fffffffffffffff";
|
|
if(text.length() > INT64_MAX_S.length()) return IntParsingResult::Overflow;
|
|
return IntParsingResult::Success;
|
|
}
|
|
return IntParsingResult::Failure;
|
|
}
|
|
|
|
} // namespace pkpy
|