373 lines
16 KiB
C
373 lines
16 KiB
C
#include "noom.h"
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#include "compiler.h"
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#include "helper.h"
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// COMPILATION!!!!!!!!!!!!!!!!!!!
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// ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣀⣴⢲⣞⣭⣟⣿⣻⣷⢶⢦⣄⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⠀⠀⣤⣞⣵⢯⣿⣞⣷⣿⣷⣿⣿⣿⣿⣜⣦⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⣤⣶⢿⣾⣽⣿⣿⣾⣿⣿⣿⣿⣿⣿⣿⣿⣯⣇⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⡤⢿⣿⣿⣿⣿⣯⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⢫⡀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⢆⣴⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣯⡗⡇⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⢠⣼⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣻⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⢰⣾⣿⣿⠿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡑⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠋⠉⠀⠀⠀⠀⠘⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⡷⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⠀⠻⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⠆⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⠀⠀⠈⠛⠻⠿⢿⣿⠟⠛⠛⠻⣿⣿⣿⣿⡿⠂⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠸⣿⣇⠀⠀⠀⠉⢿⡟⠛⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⣿⣿⠀⠀⠀⠀⣼⣧⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⡇⠀⠀⠀⠀⣿⣿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣿⠁⠀⠀⠀⢨⣿⡷⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⢸⣿⠀⠀⠀⠀⠀⣿⠿⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⡀⠀⢀⠀⠀⠀⠀⠀⠀⠀⠀⢼⣿⣧⡴⢤⣶⡴⢻⡏⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠘⠛⠿⠻⠷⠾⠶⠷⠾⠶⡷⣿⣿⣀⠀⠀⠀⠀⢸⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⠀⠀⣀⠴⠮⠃⠉⠛⢷⣦⣠⡄⠀⣸⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⣠⠶⠘⠁⠀⠀⠀⠀⠀⠙⢮⡿⣧⢾⡟⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⣤⠓⠈⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⣈⣽⡿⢿⣤⣀⡀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⠀⠀⠀⢀⢀⣠⣠⣴⣮⠾⠟⠋⠉⢹⠌⠈⠙⠻⢷⣶⣤⣤⣀⡀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⠀⠀⠙⠛⠛⠉⠁⠀⠀⠀⠀⠀⠀⡘⠂⠀⠀⠀⠀⠈⠉⠛⠛⠻⠿⠷⠦
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// ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⣸⠁⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡇⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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// ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⡘⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀
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void noomC_compiler_init(noomC_Compiler *compiler) {
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compiler->parent = 0;
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compiler->localc = 0;
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compiler->localcap = 0;
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compiler->locals = 0;
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compiler->constidx = 0;
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compiler->constc = 0;
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compiler->constcap = 0;
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}
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static noom_Exit noomC_emit(noomV_Function *func, const noomV_Inst inst) {
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noomV_Inst *newCode =noom_realloc(func->code, sizeof(noomV_Inst) * (func->codesize + 1));
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if (newCode == 0) return NOOM_ENOMEM;
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func->code = newCode;
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func->code[func->codesize++] = inst;
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return NOOM_OK;
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}
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static noom_Exit noomC_emit_ABC(noomV_Function *func, const noomV_Opcode op, const unsigned char a, const unsigned char b, const unsigned char c) {
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return noomC_emit(func, (noomV_Inst){.op = op, .a = a, .b = b, .c = c});
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}
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static noom_Exit noomC_emit_Aus(noomV_Function *func, const noomV_Opcode op, const unsigned char a, const unsigned short us) {
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return noomC_emit(func, (noomV_Inst){.op = op, .a = a, .us = us});
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}
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static noom_Exit noomC_addconst(noomV_Function *func, const noomV_Value val) {
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if (func->constsize == NOOM_USHORT_MAX) return NOOM_PLEASEHELPMEIAMSCARED;
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noomV_Value *newConsts = noom_realloc(func->consts, sizeof(noomV_Value) * (func->constsize + 1));
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if (newConsts == 0) return NOOM_ENOMEM;
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func->consts = newConsts;
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func->consts[func->constsize++] = val;
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return NOOM_OK;
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}
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static noom_Exit noomC_addconst_str(noomV_Function *func, noom_LuaVM *vm, const char *str, const noom_uint_t len) {
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noomV_String *s = noomV_allocStr(vm, str, len);
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if (s == 0) return NOOM_ENOMEM;
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return noomC_addconst(func, (noomV_Value){.tag = NOOMV_VOBJ, .autoclose = 0, .isptr = 0, .obj = (noomV_Object *)s});
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}
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static noomL_Token noomC_token_at(const noomP_Parser *parser, noom_uint_t offset) {
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noomL_Token token;
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noomL_lex(parser->code, offset, &token, parser->version);
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return token;
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}
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// There is a high chance I forgot something here
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static noom_BinOp noomC_what_bop_is_this(const noomP_Parser *parser, noom_uint_t offset) {
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const char *op = parser->code + offset;
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// I AM THE LEXER NOW!!!!!!!!!
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if (noom_startswith(op, "==")) return NOOM_BIN_EQL;
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if (noom_startswith(op, "~=")) return NOOM_BIN_NEQL;
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if (noom_startswith(op, "<")) return NOOM_BIN_LESS;
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if (noom_startswith(op, "<=")) return NOOM_BIN_LESSEQL;
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if (noom_startswith(op, ">")) return NOOM_BIN_GREATER;
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if (noom_startswith(op, ">=")) return NOOM_BIN_GREATEREQL;
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// no .., that is special cased due to funky behavior
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if (parser->version >= NOOM_VERSION_53) {
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// Fucking atom forgot to put make an instruction
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// update no i am unable to read
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if (noom_startswith(op, "//")) return NOOM_BIN_IDIV;
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if (noom_startswith(op, ">>")) return NOOM_BIN_BSHIFTR;
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if (noom_startswith(op, "<<")) return NOOM_BIN_BSHIFTL;
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if (noom_startswith(op, "&")) return NOOM_BIN_BAND;
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if (noom_startswith(op, "|")) return NOOM_BIN_BOR;
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if (noom_startswith(op, "~")) return NOOM_BIN_BXOR;
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}
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if (noom_startswith(op, "+")) return NOOM_BIN_ADD;
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if (noom_startswith(op, "-")) return NOOM_BIN_SUB;
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if (noom_startswith(op, "*")) return NOOM_BIN_MLT;
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if (noom_startswith(op, "/")) return NOOM_BIN_DIV;
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if (noom_startswith(op, "%")) return NOOM_BIN_MOD;
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if (noom_startswith(op, "^")) return NOOM_BIN_EXP;
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return 0;
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}
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// mmap ahh function 🥀🥀🥀🥀🥀🥀🥀
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// What 6 argument syscalls there even are other than mmap and clone and is there anything longer
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static noom_Exit noomC_compile_expr(
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noom_LuaVM *vm,
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noomC_Compiler *compiler,
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const noomP_Parser *parser,
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noomV_Function *func,
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const noomP_Node *node
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) {
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noom_Exit result;
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// Baba is You OST is a very cool soundtrack to code to Can recommend
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if (node->type == NOOMP_NODE_NILLITERAL) {
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compiler->curstack++;
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// TODO: analyze last instruction to optimize automatically
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return noomC_emit_Aus(func, NOOMV_INSTR_PUSHNIL, 0, 0);
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}
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if (node->type == NOOMP_NODE_BOOLEANLITERAL) {
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unsigned char fucking_destination = compiler->curstack++;
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unsigned short fucking_constant = func->constsize;
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noomL_Token bool_token = noomC_token_at(parser, node->source_offset);
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noom_bool_t val = noom_memeq(parser->code + bool_token.offset, bool_token.length, "true", 4);
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// TODO: analyze last instruction to optimize automatically
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return noomC_emit_Aus(func, NOOMV_INSTR_PUSHBOOLS, 0, val ? 1 : 0);
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}
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if (node->type == NOOMP_NODE_NUMBERLITERAL) {
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unsigned char fucking_destination = compiler->curstack++;
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return NOOM_PLEASEHELPMEIAMSCARED; // 😭😭😭😭😭😭😭😭
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}
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if (node->type == NOOMP_NODE_STRINGLITERAL) {
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unsigned char fucking_destination = compiler->curstack++;
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noom_Exit result = noomC_addconst_str(func, vm, "but DID YOU KNOW", 16);
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return result;
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}
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if (node->type == NOOMP_NODE_BINARYOPERATOR) {
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if (node->subnodec != 2) return NOOM_EINTERNAL;
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const char *op = parser->code + node->source_offset;
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if(noom_startswith(op, "..")) {
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// concat is special
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noom_uint_t amount = 1;
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const noomP_Node *n = node->subnodes[1];
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if((result = noomC_compile_expr(vm, compiler, parser, func, node->subnodes[0]))) return result;
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// we have no flattening so we unwind it ourselves
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// unlike all left-associative ones, like +, where 1 + 2 + 3 is (1 + 2) + 3,
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// concat is right-associate, like ^, meaning 1 .. 2 .. 3 is 1 .. (2 .. 3).
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// VM will handle the concat order within the array for us
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while(1) {
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if(amount > NOOM_USHORT_MAX) return NOOM_EINTERNAL;
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amount++;
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if(noom_startswith(parser->code + n->source_offset, "..")) {
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if((result = noomC_compile_expr(vm, compiler, parser, func, n->subnodes[0]))) return result;
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n = n->subnodes[1];
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} else {
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if((result = noomC_compile_expr(vm, compiler, parser, func, n))) return result;
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break;
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}
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}
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compiler->curstack -= amount;
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compiler->curstack++;
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return noomC_emit_Aus(func, NOOMV_INSTR_CONCAT, 0, amount-1);
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}
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if((result = noomC_compile_expr(vm, compiler, parser, func, node->subnodes[0]))) return result;
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if((result = noomC_compile_expr(vm, compiler, parser, func, node->subnodes[1]))) return result;
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// this consumes 2 operands and pushes 1 value, thus having a net stack effect of removing 1 item
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compiler->curstack--;
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return noomC_emit_ABC(func, NOOMV_INSTR_OP, 1, noomC_what_bop_is_this(parser, node->source_offset), 0);
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}
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if (node->type == NOOMP_NODE_CALL) {
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unsigned char fucking_destination = compiler->curstack;
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// Here we don't fucking increment this fucking destination
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// Because the fucking function call fucking increments it fucking anyway
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for (int i = 1; i < node->subnodec; i++) {
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// push node->subnodes[i] to stack or something
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}
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return noomC_emit_Aus(func, NOOMV_INSTR_JMP, 0, /* where do i start......... */ 0);
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}
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if (node->type == NOOMP_NODE_METHODCALL) {
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unsigned char fucking_destination = compiler->curstack;
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// Here we don't fucking increment this fucking destination
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// Because the fucking function call fucking increments it fucking anyway
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// push parent value... probably already processed below if you make it i = 0
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for (int i = 1; i < node->subnodec; i++) {
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// push node->subnodes[i] to stack or something
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}
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return noomC_emit_Aus(func, NOOMV_INSTR_JMP, 0, /* where do i start......... */ 0);
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}
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return NOOM_EINTERNAL;
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}
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static noom_Exit noomC_add_stuff_to_function(noom_LuaVM *vm, noomC_Compiler *compiler, const noomP_Parser *parser, noomV_Function *func, const noomP_Node *node);
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static noom_Exit noomC_compile_block(noom_LuaVM *vm, noomC_Compiler *compiler, const noomP_Parser *parser, noomV_Function *func, const noomP_Node *node) {
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noom_Exit r = NOOM_OK;
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for (noom_uint_t i = 0; i < node->subnodec; i++) {
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r = noomC_add_stuff_to_function(vm, compiler, parser, func, node->subnodes[i]);
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if (r != NOOM_OK) break;
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}
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return r;
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}
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// They say you use only 10% of your brain
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// Keep it
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// If you think too much you will get headaches
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// I remember atom said there is a memory leak somewhere but I don't rememeememember where uhhhhhhhhhhhhhhhhh
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static noom_Exit noomC_add_stuff_to_function(noom_LuaVM *vm, noomC_Compiler *compiler, const noomP_Parser *parser, noomV_Function *func, const noomP_Node *node) {
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noom_Exit result;
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// local name <attr> = expression i think
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if (node->type == NOOMP_NODE_LOCALDECLARATION) {
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// This code is awful for several reasons and we shall burn it
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if (node->subnodec != 1 && node->subnodec != 2) return NOOM_EINTERNAL;
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const noomP_Node *varname_node = node->subnodes[0];
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if (varname_node->type != NOOMP_NODE_ASSIGNPLACE) return NOOM_EINTERNAL;
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const char *namebuf = parser->code + varname_node->source_offset;
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noomL_Token t;
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noomL_lex(namebuf, 0, &t, parser->version);
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noomC_Local local;
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local.startpc = func->codesize;
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local.endpc = 0;
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local.dropped = 0;
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local.close = 0;
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local.constant = 0;
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local.name = namebuf;
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local.namelen = t.length;
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for (noom_uint_t i = 0; i < varname_node->subnodec; i++) {
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if (varname_node->subnodes[i]->type != NOOMP_NODE_ATTRIBUTE) return NOOM_EINTERNAL;
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noomL_Token attr_token = noomC_token_at(parser, varname_node->subnodes[i]->source_offset);
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const char *ap = parser->code + attr_token.offset;
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noom_uint_t al = attr_token.length;
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if (noom_memeq(ap, al, "close", 5)) {
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if (local.close) return NOOM_EINTERNAL;
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local.close = 1;
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}
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else if (noom_memeq(ap, al, "const", 5)) {
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if (local.constant) return NOOM_EINTERNAL;
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local.constant = 1;
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}
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else {
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return NOOM_EINTERNAL;
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}
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}
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const unsigned destination = compiler->curstack;
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if (compiler->curstack++ == NOOM_MAXSTACK) return NOOM_ENOSTACK;
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if (node->subnodec == 1) {
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const unsigned short constptr = func->constsize;
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result = noomC_emit_Aus(func, NOOMV_INSTR_PUSHNIL, 0, 0);
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if (result != NOOM_OK) return result;
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compiler->curstack++;
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}
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else {
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const noomP_Node *value_node = node->subnodes[1];
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const noom_Exit r = noomC_compile_expr(vm, compiler, parser, func, value_node);
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if (r != NOOM_OK) return r;
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}
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local.stackslot = compiler->curstack;
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// too many locals
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if(compiler->localc == 200) return NOOM_EINTERNAL;
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// resize backing array
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if(compiler->localc == compiler->localcap) {
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noom_uint_t newCap = compiler->localcap * 2;
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noomC_Local *newLocals = noom_realloc(compiler->locals, sizeof(noomC_Local) * newCap);
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if(newLocals == 0) return NOOM_ENOMEM;
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compiler->locals = newLocals;
|
|
compiler->localcap = newCap;
|
|
}
|
|
compiler->locals[compiler->localc++] = local;
|
|
|
|
return NOOM_OK;
|
|
}
|
|
|
|
// local function name(...) ... end
|
|
if (node->type == NOOMP_NODE_LOCALFUNCTIONDECLARATION) {
|
|
if (node->subnodec != 3) return NOOM_EINTERNAL;
|
|
// Funny staircase huh
|
|
const noomP_Node *varname_node = node->subnodes[0];
|
|
const noomP_Node *params_node = node->subnodes[1];
|
|
const noomP_Node *block_node = node->subnodes[2];
|
|
if (varname_node->type != NOOMP_NODE_VARNAME) return NOOM_EINTERNAL;
|
|
if (params_node->type != NOOMP_NODE_FUNCTIONPARAMETERS) return NOOM_EINTERNAL;
|
|
if (block_node->type != NOOMP_NODE_BLOCK) return NOOM_EINTERNAL;
|
|
|
|
const noomL_Token name_token = noomC_token_at(parser, varname_node->source_offset);
|
|
noomV_Function *proto = noomV_allocFunc(vm, parser->code + name_token.offset, name_token.length);
|
|
if (proto == 0) return NOOM_ENOMEM;
|
|
|
|
proto->argc = (unsigned char)params_node->subnodec;
|
|
|
|
noomC_Compiler child;
|
|
noomC_compiler_init(&child);
|
|
child.parent = compiler; // Is this correct????? Is this correct????????????????? It probably is
|
|
child.curstack = proto->argc;
|
|
|
|
const noom_Exit result = noomC_compile_block(vm, &child, parser, proto, block_node);
|
|
if (result != NOOM_OK) return result;
|
|
|
|
noomV_Function **newProtos = noom_realloc(func->protos, sizeof(noomV_Function *) * (func->protosize + 1));
|
|
if (newProtos == 0) return NOOM_ENOMEM;
|
|
func->protos = newProtos;
|
|
func->protos[func->protosize++] = proto;
|
|
|
|
noomC_Local local;
|
|
local.startpc = proto->codesize;
|
|
local.endpc = 0;
|
|
local.dropped = 0; // FIXME?
|
|
local.close = 0;
|
|
local.constant = 0;
|
|
// FIXME: this is WRONG, BUT I AM TIRED.
|
|
local.name = noom_strndup(parser->code + varname_node->source_offset, varname_node->source_offset);
|
|
|
|
// FIXME: EXTREMELY WRONG. I AM STILL TIRED.
|
|
compiler->locals = noom_realloc(compiler->locals, sizeof(noomC_Local) * (compiler->localc + 1));
|
|
if (compiler->locals == 0) return NOOM_ENOMEM;
|
|
compiler->locals[compiler->localc++] = local;
|
|
// I guess???????
|
|
if (compiler->localc > compiler->localcap) compiler->localcap = compiler->localc;
|
|
|
|
return NOOM_OK;
|
|
}
|
|
|
|
// TODO
|
|
if (node->type == NOOMP_NODE_RETURN) {
|
|
noomC_emit_Aus(func, NOOMV_INSTR_NOP, 0, 0);
|
|
return NOOM_OK;
|
|
}
|
|
|
|
if (node->type == NOOMP_NODE_DOBLOCK || node->type == NOOMP_NODE_BLOCK) {
|
|
return noomC_compile_block(vm, compiler, parser, func, node);
|
|
}
|
|
|
|
return NOOM_EINTERNAL;
|
|
}
|
|
|
|
noom_Exit noomC_compile(noom_LuaVM *vm, const noomP_Parser *parser, const noomP_Node *node) {
|
|
if (node->type != NOOMP_NODE_PROGRAM) return NOOM_EINTERNAL;
|
|
|
|
noomV_Function* program = noomV_allocFunc(vm, "main", 4);
|
|
|
|
noomC_Compiler compiler;
|
|
noomC_compiler_init(&compiler);
|
|
|
|
noom_Exit status = noomC_compile_block(vm, &compiler, parser, program, node);
|
|
if (status != NOOM_OK) return status;
|
|
|
|
if (vm->mainThread->stacklen == vm->mainThread->stackcap) {
|
|
vm->mainThread->stackcap = vm->mainThread->stackcap ? vm->mainThread->stackcap * 2 : 16;
|
|
vm->mainThread->stack = noom_realloc(vm->mainThread->stack, sizeof(noomV_Value) * vm->mainThread->stackcap);
|
|
}
|
|
vm->mainThread->stack[vm->mainThread->stacklen++] =
|
|
(noomV_Value){.tag = NOOMV_VOBJ, .autoclose = 0, .isptr = 0, .obj = (noomV_Object*)program};
|
|
return NOOM_OK;
|
|
}
|