X-Git-Url: https://git.xonotic.org/?a=blobdiff_plain;f=parser.c;h=752d62a2ad3c5358e119facce38d7aa5c6ca2a69;hb=3424b7227b61ea7aef13a4ff03ff68200d62b5ad;hp=894e0a6b8834a1b29cc15e79f060dd6c8b6fbf0c;hpb=b0326c66ed5da46c3d895cde52e7af65a8b68abd;p=xonotic%2Fgmqcc.git diff --git a/parser.c b/parser.c index 894e0a6..752d62a 100644 --- a/parser.c +++ b/parser.c @@ -1,34 +1,74 @@ +/* + * Copyright (C) 2012 + * Wolfgang Bumiller + * + * Permission is hereby granted, free of charge, to any person obtaining a copy of + * this software and associated documentation files (the "Software"), to deal in + * the Software without restriction, including without limitation the rights to + * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies + * of the Software, and to permit persons to whom the Software is furnished to do + * so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in all + * copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ #include #include #include "gmqcc.h" #include "lexer.h" -typedef struct { - char *name; - ast_expression *var; -} varentry_t; +#define PARSER_HT_FIELDS 0 +#define PARSER_HT_GLOBALS 1 +/* beginning of locals */ +#define PARSER_HT_LOCALS 2 + +#define PARSER_HT_SIZE 1024 +#define TYPEDEF_HT_SIZE 16 typedef struct { lex_file *lex; int tok; - MEM_VECTOR_MAKE(varentry_t, globals); - MEM_VECTOR_MAKE(varentry_t, fields); - MEM_VECTOR_MAKE(ast_function*, functions); - MEM_VECTOR_MAKE(ast_value*, imm_float); - MEM_VECTOR_MAKE(ast_value*, imm_string); - MEM_VECTOR_MAKE(ast_value*, imm_vector); + ast_expression **globals; + ast_expression **fields; + ast_function **functions; + ast_value **imm_float; + ast_value **imm_string; + ast_value **imm_vector; + size_t translated; + + /* must be deleted first, they reference immediates and values */ + ast_value **accessors; ast_value *imm_float_zero; + ast_value *imm_float_one; ast_value *imm_vector_zero; size_t crc_globals; size_t crc_fields; ast_function *function; - MEM_VECTOR_MAKE(varentry_t, locals); - size_t blocklocal; + + /* A list of hashtables for each scope */ + ht *variables; + ht htfields; + ht htglobals; + ht *typedefs; + + /* not to be used directly, we use the hash table */ + ast_expression **_locals; + size_t *_blocklocals; + ast_value **_typedefs; + size_t *_blocktypedefs; size_t errors; @@ -42,19 +82,19 @@ typedef struct { qcint memberof; } parser_t; -MEM_VEC_FUNCTIONS(parser_t, varentry_t, globals) -MEM_VEC_FUNCTIONS(parser_t, varentry_t, fields) -MEM_VEC_FUNCTIONS(parser_t, ast_value*, imm_float) -MEM_VEC_FUNCTIONS(parser_t, ast_value*, imm_string) -MEM_VEC_FUNCTIONS(parser_t, ast_value*, imm_vector) -MEM_VEC_FUNCTIONS(parser_t, varentry_t, locals) -MEM_VEC_FUNCTIONS(parser_t, ast_function*, functions) +#define CV_NONE 0 +#define CV_CONST 1 +#define CV_VAR -1 -static bool GMQCC_WARN parser_pop_local(parser_t *parser); -static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields); +static void parser_enterblock(parser_t *parser); +static bool parser_leaveblock(parser_t *parser); +static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e); +static bool parse_typedef(parser_t *parser); +static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int is_const_var, ast_value *cached_typedef); static ast_block* parse_block(parser_t *parser, bool warnreturn); static bool parse_block_into(parser_t *parser, ast_block *block, bool warnreturn); static ast_expression* parse_statement_or_block(parser_t *parser); +static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases); static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma); static ast_expression* parse_expression(parser_t *parser, bool stopatcomma); @@ -65,7 +105,7 @@ static void parseerror(parser_t *parser, const char *fmt, ...) parser->errors++; va_start(ap, fmt); - vprintmsg(LVL_ERROR, parser->lex->tok.ctx.file, parser->lex->tok.ctx.line, "parse error", fmt, ap); + con_vprintmsg(LVL_ERROR, parser->lex->tok.ctx.file, parser->lex->tok.ctx.line, "parse error", fmt, ap); va_end(ap); } @@ -84,7 +124,7 @@ static bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char * } va_start(ap, fmt); - vprintmsg(lvl, parser->lex->tok.ctx.file, parser->lex->tok.ctx.line, "warning", fmt, ap); + con_vprintmsg(lvl, parser->lex->tok.ctx.file, parser->lex->tok.ctx.line, "warning", fmt, ap); va_end(ap); return opts_werror; @@ -102,7 +142,7 @@ static bool GMQCC_WARN genwarning(lex_ctx ctx, int warntype, const char *fmt, .. lvl = LVL_ERROR; va_start(ap, fmt); - vprintmsg(lvl, ctx.file, ctx.line, "warning", fmt, ap); + con_vprintmsg(lvl, ctx.file, ctx.line, "warning", fmt, ap); va_end(ap); return opts_werror; @@ -169,17 +209,16 @@ static ast_value* parser_const_float(parser_t *parser, double d) { size_t i; ast_value *out; - for (i = 0; i < parser->imm_float_count; ++i) { - if (parser->imm_float[i]->constval.vfloat == d) + for (i = 0; i < vec_size(parser->imm_float); ++i) { + const double compare = parser->imm_float[i]->constval.vfloat; + if (memcmp((const void*)&compare, (const void *)&d, sizeof(double)) == 0) return parser->imm_float[i]; } out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_FLOAT); - out->isconst = true; + out->constant = true; + out->hasvalue = true; out->constval.vfloat = d; - if (!parser_t_imm_float_add(parser, out)) { - ast_value_delete(out); - return NULL; - } + vec_push(parser->imm_float, out); return out; } @@ -190,6 +229,13 @@ static ast_value* parser_const_float_0(parser_t *parser) return parser->imm_float_zero; } +static ast_value* parser_const_float_1(parser_t *parser) +{ + if (!parser->imm_float_one) + parser->imm_float_one = parser_const_float(parser, 1); + return parser->imm_float_one; +} + static char *parser_strdup(const char *str) { if (str && !*str) { @@ -201,21 +247,24 @@ static char *parser_strdup(const char *str) return util_strdup(str); } -static ast_value* parser_const_string(parser_t *parser, const char *str) +static ast_value* parser_const_string(parser_t *parser, const char *str, bool dotranslate) { size_t i; ast_value *out; - for (i = 0; i < parser->imm_string_count; ++i) { + for (i = 0; i < vec_size(parser->imm_string); ++i) { if (!strcmp(parser->imm_string[i]->constval.vstring, str)) return parser->imm_string[i]; } - out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING); - out->isconst = true; + if (dotranslate) { + char name[32]; + snprintf(name, sizeof(name), "dotranslate_%lu", (unsigned long)(parser->translated++)); + out = ast_value_new(parser_ctx(parser), name, TYPE_STRING); + } else + out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING); + out->constant = true; + out->hasvalue = true; out->constval.vstring = parser_strdup(str); - if (!parser_t_imm_string_add(parser, out)) { - ast_value_delete(out); - return NULL; - } + vec_push(parser->imm_string, out); return out; } @@ -223,17 +272,15 @@ static ast_value* parser_const_vector(parser_t *parser, vector v) { size_t i; ast_value *out; - for (i = 0; i < parser->imm_vector_count; ++i) { + for (i = 0; i < vec_size(parser->imm_vector); ++i) { if (!memcmp(&parser->imm_vector[i]->constval.vvec, &v, sizeof(v))) return parser->imm_vector[i]; } out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_VECTOR); - out->isconst = true; + out->constant = true; + out->hasvalue = true; out->constval.vvec = v; - if (!parser_t_imm_vector_add(parser, out)) { - ast_value_delete(out); - return NULL; - } + vec_push(parser->imm_vector, out); return out; } @@ -255,22 +302,12 @@ static ast_value* parser_const_vector_0(parser_t *parser) static ast_expression* parser_find_field(parser_t *parser, const char *name) { - size_t i; - for (i = 0; i < parser->fields_count; ++i) { - if (!strcmp(parser->fields[i].name, name)) - return parser->fields[i].var; - } - return NULL; + return util_htget(parser->htfields, name); } static ast_expression* parser_find_global(parser_t *parser, const char *name) { - size_t i; - for (i = 0; i < parser->globals_count; ++i) { - if (!strcmp(parser->globals[i].name, name)) - return parser->globals[i].var; - } - return NULL; + return util_htget(parser->htglobals, name); } static ast_expression* parser_find_param(parser_t *parser, const char *name) @@ -280,7 +317,7 @@ static ast_expression* parser_find_param(parser_t *parser, const char *name) if (!parser->function) return NULL; fun = parser->function->vtype; - for (i = 0; i < fun->expression.params_count; ++i) { + for (i = 0; i < vec_size(fun->expression.params); ++i) { if (!strcmp(fun->expression.params[i]->name, name)) return (ast_expression*)(fun->expression.params[i]); } @@ -289,12 +326,16 @@ static ast_expression* parser_find_param(parser_t *parser, const char *name) static ast_expression* parser_find_local(parser_t *parser, const char *name, size_t upto, bool *isparam) { - size_t i; + size_t i, hash; + ast_expression *e; + + hash = util_hthash(parser->htglobals, name); + *isparam = false; - for (i = parser->locals_count; i > upto;) { + for (i = vec_size(parser->variables); i > upto;) { --i; - if (!strcmp(parser->locals[i].name, name)) - return parser->locals[i].var; + if ( (e = util_htgeth(parser->variables[i], name, hash)) ) + return e; } *isparam = true; return parser_find_param(parser, name); @@ -309,6 +350,20 @@ static ast_expression* parser_find_var(parser_t *parser, const char *name) return v; } +static ast_value* parser_find_typedef(parser_t *parser, const char *name, size_t upto) +{ + size_t i, hash; + ast_value *e; + hash = util_hthash(parser->typedefs[0], name); + + for (i = vec_size(parser->typedefs); i > upto;) { + --i; + if ( (e = (ast_value*)util_htgeth(parser->typedefs[i], name, hash)) ) + return e; + } + return NULL; +} + typedef struct { size_t etype; /* 0 = expression, others are operators */ @@ -320,11 +375,9 @@ typedef struct } sy_elem; typedef struct { - MEM_VECTOR_MAKE(sy_elem, out); - MEM_VECTOR_MAKE(sy_elem, ops); + sy_elem *out; + sy_elem *ops; } shunt; -MEM_VEC_FUNCTIONS(shunt, sy_elem, out) -MEM_VEC_FUNCTIONS(shunt, sy_elem, ops) #define SY_PAREN_EXPR '(' #define SY_PAREN_FUNC 'f' @@ -383,7 +436,7 @@ static sy_elem syparen(lex_ctx ctx, int p, size_t off) { /* With regular precedence rules, ent.foo[n] is the same as (ent.foo)[n], * so we need to rotate it to become ent.(foo[n]). */ -static void rotate_entfield_array_index_nodes(ast_expression **out) +static bool rotate_entfield_array_index_nodes(ast_expression **out) { ast_array_index *index; ast_entfield *entfield; @@ -395,15 +448,15 @@ static void rotate_entfield_array_index_nodes(ast_expression **out) lex_ctx ctx = ast_ctx(*out); if (!ast_istype(*out, ast_array_index)) - return; + return false; index = (ast_array_index*)*out; if (!ast_istype(index->array, ast_entfield)) - return; + return false; entfield = (ast_entfield*)index->array; if (!ast_istype(entfield->field, ast_value)) - return; + return false; field = (ast_value*)entfield->field; sub = index->index; @@ -414,6 +467,8 @@ static void rotate_entfield_array_index_nodes(ast_expression **out) index = ast_array_index_new(ctx, (ast_expression*)field, sub); entfield = ast_entfield_new(ctx, entity, (ast_expression*)index); *out = (ast_expression*)entfield; + + return true; } static bool parser_sy_pop(parser_t *parser, shunt *sy) @@ -424,43 +479,43 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy) ast_expression *exprs[3]; ast_block *blocks[3]; ast_value *asvalue[3]; - size_t i, assignop; + size_t i, assignop, addop, subop; qcint generated_op = 0; char ty1[1024]; char ty2[1024]; - if (!sy->ops_count) { + if (!vec_size(sy->ops)) { parseerror(parser, "internal error: missing operator"); return false; } - if (sy->ops[sy->ops_count-1].paren) { + if (vec_last(sy->ops).paren) { parseerror(parser, "unmatched parenthesis"); return false; } - op = &operators[sy->ops[sy->ops_count-1].etype - 1]; - ctx = sy->ops[sy->ops_count-1].ctx; + op = &operators[vec_last(sy->ops).etype - 1]; + ctx = vec_last(sy->ops).ctx; - DEBUGSHUNTDO(printf("apply %s\n", op->op)); + DEBUGSHUNTDO(con_out("apply %s\n", op->op)); - if (sy->out_count < op->operands) { - parseerror(parser, "internal error: not enough operands: %i (operator %s (%i))", sy->out_count, + if (vec_size(sy->out) < op->operands) { + parseerror(parser, "internal error: not enough operands: %i (operator %s (%i))", vec_size(sy->out), op->op, (int)op->id); return false; } - sy->ops_count--; + vec_shrinkby(sy->ops, 1); - sy->out_count -= op->operands; + vec_shrinkby(sy->out, op->operands); for (i = 0; i < op->operands; ++i) { - exprs[i] = sy->out[sy->out_count+i].out; - blocks[i] = sy->out[sy->out_count+i].block; + exprs[i] = sy->out[vec_size(sy->out)+i].out; + blocks[i] = sy->out[vec_size(sy->out)+i].block; asvalue[i] = (ast_value*)exprs[i]; } - if (blocks[0] && !blocks[0]->exprs_count && op->id != opid1(',')) { + if (blocks[0] && !vec_size(blocks[0]->exprs) && op->id != opid1(',')) { parseerror(parser, "internal error: operator cannot be applied on empty blocks"); return false; } @@ -469,7 +524,7 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy) (exprs[0]->expression.vtype != exprs[1]->expression.vtype || \ exprs[0]->expression.vtype != T) #define CanConstFold1(A) \ - (ast_istype((A), ast_value) && ((ast_value*)(A))->isconst) + (ast_istype((A), ast_value) && ((ast_value*)(A))->hasvalue && ((ast_value*)(A))->constant) #define CanConstFold(A, B) \ (CanConstFold1(A) && CanConstFold1(B)) #define ConstV(i) (asvalue[(i)]->constval.vvec) @@ -514,25 +569,29 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy) return false; } out = (ast_expression*)ast_array_index_new(ctx, exprs[0], exprs[1]); - rotate_entfield_array_index_nodes(&out); + if (rotate_entfield_array_index_nodes(&out)) + { + if (opts_standard != COMPILER_GMQCC) { + /* this error doesn't need to make us bail out */ + (void)!parsewarning(parser, WARN_EXTENSIONS, + "accessing array-field members of an entity without parenthesis\n" + " -> this is an extension from -std=gmqcc"); + } + } break; case opid1(','): if (blocks[0]) { - if (!ast_block_exprs_add(blocks[0], exprs[1])) - return false; + ast_block_add_expr(blocks[0], exprs[1]); } else { blocks[0] = ast_block_new(ctx); - if (!ast_block_exprs_add(blocks[0], exprs[0]) || - !ast_block_exprs_add(blocks[0], exprs[1])) - { - return false; - } + ast_block_add_expr(blocks[0], exprs[0]); + ast_block_add_expr(blocks[0], exprs[1]); } if (!ast_block_set_type(blocks[0], exprs[1])) return false; - sy->out[sy->out_count++] = syblock(ctx, blocks[0]); + vec_push(sy->out, syblock(ctx, blocks[0])); return true; case opid2('-','P'): @@ -756,6 +815,7 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy) generated_op += 1; /* INSTR_OR */ case opid2('&','&'): generated_op += INSTR_AND; +#if 0 if (NotSameType(TYPE_FLOAT)) { parseerror(parser, "invalid types used in expression: cannot perform logical operations between types %s and %s", type_name[exprs[0]->expression.vtype], @@ -764,8 +824,9 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy) parseerror(parser, "TODO: optional early out"); return false; } +#endif if (opts_standard == COMPILER_GMQCC) - printf("TODO: early out logic\n"); + con_out("TODO: early out logic\n"); if (CanConstFold(exprs[0], exprs[1])) out = (ast_expression*)parser_const_float(parser, (generated_op == INSTR_OR ? (ConstF(0) || ConstF(1)) : (ConstF(0) && ConstF(1)))); @@ -773,6 +834,19 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy) out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]); break; + case opid2('?',':'): + if (exprs[1]->expression.vtype != exprs[2]->expression.vtype) { + ast_type_to_string(exprs[1], ty1, sizeof(ty1)); + ast_type_to_string(exprs[2], ty2, sizeof(ty2)); + parseerror(parser, "iperands of ternary expression must have the same type, got %s and %s", ty1, ty2); + return false; + } + if (CanConstFold1(exprs[0])) + out = (ConstF(0) ? exprs[1] : exprs[2]); + else + out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]); + break; + case opid1('>'): generated_op += 1; /* INSTR_GT */ case opid1('<'): @@ -870,18 +944,83 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy) parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1); } } + if (ast_istype(exprs[0], ast_value) && asvalue[0]->constant) { + parseerror(parser, "assignment to constant `%s`", asvalue[0]->name); + } out = (ast_expression*)ast_store_new(ctx, assignop, exprs[0], exprs[1]); break; + case opid3('+','+','P'): + case opid3('-','-','P'): + /* prefix ++ */ + if (exprs[0]->expression.vtype != TYPE_FLOAT) { + ast_type_to_string(exprs[0], ty1, sizeof(ty1)); + parseerror(parser, "invalid type for prefix increment: %s", ty1); + return false; + } + if (op->id == opid3('+','+','P')) + addop = INSTR_ADD_F; + else + addop = INSTR_SUB_F; + if (ast_istype(exprs[0], ast_value) && asvalue[0]->constant) { + parseerror(parser, "assignment to constant `%s`", asvalue[0]->name); + } + if (ast_istype(exprs[0], ast_entfield)) { + out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop, + exprs[0], + (ast_expression*)parser_const_float_1(parser)); + } else { + out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop, + exprs[0], + (ast_expression*)parser_const_float_1(parser)); + } + break; + case opid3('S','+','+'): + case opid3('S','-','-'): + /* prefix ++ */ + if (exprs[0]->expression.vtype != TYPE_FLOAT) { + ast_type_to_string(exprs[0], ty1, sizeof(ty1)); + parseerror(parser, "invalid type for suffix increment: %s", ty1); + return false; + } + if (op->id == opid3('S','+','+')) { + addop = INSTR_ADD_F; + subop = INSTR_SUB_F; + } else { + addop = INSTR_SUB_F; + subop = INSTR_ADD_F; + } + if (ast_istype(exprs[0], ast_value) && asvalue[0]->constant) { + parseerror(parser, "assignment to constant `%s`", asvalue[0]->name); + } + if (ast_istype(exprs[0], ast_entfield)) { + out = (ast_expression*)ast_binstore_new(ctx, INSTR_STOREP_F, addop, + exprs[0], + (ast_expression*)parser_const_float_1(parser)); + } else { + out = (ast_expression*)ast_binstore_new(ctx, INSTR_STORE_F, addop, + exprs[0], + (ast_expression*)parser_const_float_1(parser)); + } + if (!out) + return false; + out = (ast_expression*)ast_binary_new(ctx, subop, + out, + (ast_expression*)parser_const_float_1(parser)); + break; case opid2('+','='): case opid2('-','='): if (exprs[0]->expression.vtype != exprs[1]->expression.vtype || (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) ) { + ast_type_to_string(exprs[0], ty1, sizeof(ty1)); + ast_type_to_string(exprs[1], ty2, sizeof(ty2)); parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s", - type_name[exprs[0]->expression.vtype], - type_name[exprs[1]->expression.vtype]); + ty1, ty2); return false; } + if (ast_istype(exprs[0], ast_value) && asvalue[0]->constant) { + parseerror(parser, "assignment to constant `%s`", asvalue[0]->name); + } if (ast_istype(exprs[0], ast_entfield)) assignop = type_storep_instr[exprs[0]->expression.vtype]; else @@ -904,6 +1043,97 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy) return false; }; break; + case opid2('*','='): + case opid2('/','='): + if (exprs[1]->expression.vtype != TYPE_FLOAT || + !(exprs[0]->expression.vtype == TYPE_FLOAT || + exprs[0]->expression.vtype == TYPE_VECTOR)) + { + ast_type_to_string(exprs[0], ty1, sizeof(ty1)); + ast_type_to_string(exprs[1], ty2, sizeof(ty2)); + parseerror(parser, "invalid types used in expression: %s and %s", + ty1, ty2); + return false; + } + if (ast_istype(exprs[0], ast_value) && asvalue[0]->constant) { + parseerror(parser, "assignment to constant `%s`", asvalue[0]->name); + } + if (ast_istype(exprs[0], ast_entfield)) + assignop = type_storep_instr[exprs[0]->expression.vtype]; + else + assignop = type_store_instr[exprs[0]->expression.vtype]; + switch (exprs[0]->expression.vtype) { + case TYPE_FLOAT: + out = (ast_expression*)ast_binstore_new(ctx, assignop, + (op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F), + exprs[0], exprs[1]); + break; + case TYPE_VECTOR: + if (op->id == opid2('*','=')) { + out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF, + exprs[0], exprs[1]); + } else { + /* there's no DIV_VF */ + out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, + (ast_expression*)parser_const_float_1(parser), + exprs[1]); + if (!out) + return false; + out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF, + exprs[0], out); + } + break; + default: + parseerror(parser, "invalid types used in expression: cannot add or subtract type %s and %s", + type_name[exprs[0]->expression.vtype], + type_name[exprs[1]->expression.vtype]); + return false; + }; + break; + case opid2('&','='): + case opid2('|','='): + if (NotSameType(TYPE_FLOAT)) { + ast_type_to_string(exprs[0], ty1, sizeof(ty1)); + ast_type_to_string(exprs[1], ty2, sizeof(ty2)); + parseerror(parser, "invalid types used in expression: %s and %s", + ty1, ty2); + return false; + } + if (ast_istype(exprs[0], ast_value) && asvalue[0]->constant) { + parseerror(parser, "assignment to constant `%s`", asvalue[0]->name); + } + if (ast_istype(exprs[0], ast_entfield)) + assignop = type_storep_instr[exprs[0]->expression.vtype]; + else + assignop = type_store_instr[exprs[0]->expression.vtype]; + out = (ast_expression*)ast_binstore_new(ctx, assignop, + (op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR), + exprs[0], exprs[1]); + break; + case opid3('&','~','='): + /* This is like: a &= ~(b); + * But QC has no bitwise-not, so we implement it as + * a -= a & (b); + */ + if (NotSameType(TYPE_FLOAT)) { + ast_type_to_string(exprs[0], ty1, sizeof(ty1)); + ast_type_to_string(exprs[1], ty2, sizeof(ty2)); + parseerror(parser, "invalid types used in expression: %s and %s", + ty1, ty2); + return false; + } + if (ast_istype(exprs[0], ast_entfield)) + assignop = type_storep_instr[exprs[0]->expression.vtype]; + else + assignop = type_store_instr[exprs[0]->expression.vtype]; + out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]); + if (!out) + return false; + if (ast_istype(exprs[0], ast_value) && asvalue[0]->constant) { + parseerror(parser, "assignment to constant `%s`", asvalue[0]->name); + } + out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_SUB_F, exprs[0], out); + break; } #undef NotSameType @@ -912,8 +1142,8 @@ static bool parser_sy_pop(parser_t *parser, shunt *sy) return false; } - DEBUGSHUNTDO(printf("applied %s\n", op->op)); - sy->out[sy->out_count++] = syexp(ctx, out); + DEBUGSHUNTDO(con_out("applied %s\n", op->op)); + vec_push(sy->out, syexp(ctx, out)); return true; } @@ -926,8 +1156,8 @@ static bool parser_close_call(parser_t *parser, shunt *sy) size_t fid; size_t paramcount; - sy->ops_count--; - fid = sy->ops[sy->ops_count].off; + vec_shrinkby(sy->ops, 1); + fid = sy->ops[vec_size(sy->ops)].off; /* out[fid] is the function * everything above is parameters... @@ -936,37 +1166,34 @@ static bool parser_close_call(parser_t *parser, shunt *sy) * more = ast_block */ - if (sy->out_count < 1 || sy->out_count <= fid) { + if (vec_size(sy->out) < 1 || vec_size(sy->out) <= fid) { parseerror(parser, "internal error: function call needs function and parameter list..."); return false; } fun = sy->out[fid].out; - call = ast_call_new(sy->ops[sy->ops_count].ctx, fun); + call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun); if (!call) { parseerror(parser, "out of memory"); return false; } - if (fid+1 == sy->out_count) { + if (fid+1 == vec_size(sy->out)) { /* no arguments */ paramcount = 0; - } else if (fid+2 == sy->out_count) { + } else if (fid+2 == vec_size(sy->out)) { ast_block *params; - sy->out_count--; - params = sy->out[sy->out_count].block; + vec_shrinkby(sy->out, 1); + params = sy->out[vec_size(sy->out)].block; if (!params) { /* 1 param */ paramcount = 1; - if (!ast_call_params_add(call, sy->out[sy->out_count].out)) { - ast_delete(sy->out[sy->out_count].out); - parseerror(parser, "out of memory"); - return false; - } + vec_push(call->params, sy->out[vec_size(sy->out)].out); } else { - paramcount = params->exprs_count; - MEM_VECTOR_MOVE(params, exprs, call, params); + paramcount = vec_size(params->exprs); + call->params = params->exprs; + params->exprs = NULL; ast_delete(params); } if (!ast_call_check_types(call)) @@ -988,12 +1215,12 @@ static bool parser_close_call(parser_t *parser, shunt *sy) parseerror(parser, "could not determine function return type"); return false; } else { - if (fun->expression.params_count != paramcount && + if (vec_size(fun->expression.params) != paramcount && !(fun->expression.variadic && - fun->expression.params_count < paramcount)) + vec_size(fun->expression.params) < paramcount)) { ast_value *fval; - const char *fewmany = (fun->expression.params_count > paramcount) ? "few" : "many"; + const char *fewmany = (vec_size(fun->expression.params) > paramcount) ? "few" : "many"; fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL); if (opts_standard == COMPILER_GMQCC) @@ -1001,12 +1228,12 @@ static bool parser_close_call(parser_t *parser, shunt *sy) if (fval) parseerror(parser, "too %s parameters for call to %s: expected %i, got %i\n" " -> `%s` has been declared here: %s:%i", - fewmany, fval->name, (int)fun->expression.params_count, (int)paramcount, + fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount, fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line); else parseerror(parser, "too %s parameters for function call: expected %i, got %i\n" " -> `%s` has been declared here: %s:%i", - fewmany, fval->name, (int)fun->expression.params_count, (int)paramcount, + fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount, fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line); return false; } @@ -1016,13 +1243,13 @@ static bool parser_close_call(parser_t *parser, shunt *sy) return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS, "too %s parameters for call to %s: expected %i, got %i\n" " -> `%s` has been declared here: %s:%i", - fewmany, fval->name, (int)fun->expression.params_count, (int)paramcount, + fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount, fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line); else return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS, "too %s parameters for function call: expected %i, got %i\n" " -> `%s` has been declared here: %s:%i", - fewmany, fval->name, (int)fun->expression.params_count, (int)paramcount, + fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount, fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line); } } @@ -1033,31 +1260,31 @@ static bool parser_close_call(parser_t *parser, shunt *sy) static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only) { - if (!sy->ops_count) { + if (!vec_size(sy->ops)) { parseerror(parser, "unmatched closing paren"); return false; } /* this would for bit a + (x) because there are no operators inside (x) - if (sy->ops[sy->ops_count-1].paren == 1) { + if (sy->ops[vec_size(sy->ops)-1].paren == 1) { parseerror(parser, "empty parenthesis expression"); return false; } */ - while (sy->ops_count) { - if (sy->ops[sy->ops_count-1].paren == SY_PAREN_FUNC) { + while (vec_size(sy->ops)) { + if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_FUNC) { if (!parser_close_call(parser, sy)) return false; break; } - if (sy->ops[sy->ops_count-1].paren == SY_PAREN_EXPR) { - sy->ops_count--; + if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_EXPR) { + vec_shrinkby(sy->ops, 1); return !functions_only; } - if (sy->ops[sy->ops_count-1].paren == SY_PAREN_INDEX) { + if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_INDEX) { if (functions_only) return false; /* pop off the parenthesis */ - sy->ops_count--; + vec_shrinkby(sy->ops, 1); /* then apply the index operator */ if (!parser_sy_pop(parser, sy)) return false; @@ -1091,9 +1318,10 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma * end of a condition is an unmatched closing paren */ int parens = 0; + int ternaries = 0; - MEM_VECTOR_INIT(&sy, out); - MEM_VECTOR_INIT(&sy, ops); + sy.out = NULL; + sy.ops = NULL; parser->lex->flags.noops = false; @@ -1106,7 +1334,40 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma else parser->memberof = 0; - if (parser->tok == TOKEN_IDENT) + if (OPTS_FLAG(TRANSLATABLE_STRINGS) && + parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "_")) + { + /* a translatable string */ + ast_value *val; + + if (wantop) { + parseerror(parser, "expected operator or end of statement, got constant"); + goto onerr; + } + + parser->lex->flags.noops = true; + if (!parser_next(parser) || parser->tok != '(') { + parseerror(parser, "use _(\"string\") to create a translatable string constant"); + goto onerr; + } + parser->lex->flags.noops = false; + if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) { + parseerror(parser, "expected a constant string in translatable-string extension"); + goto onerr; + } + val = parser_const_string(parser, parser_tokval(parser), true); + wantop = true; + if (!val) + return false; + vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val)); + DEBUGSHUNTDO(con_out("push string\n")); + + if (!parser_next(parser) || parser->tok != ')') { + parseerror(parser, "expected closing paren after translatable string"); + goto onerr; + } + } + else if (parser->tok == TOKEN_IDENT) { ast_expression *var; if (wantop) { @@ -1145,11 +1406,8 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma } if (ast_istype(var, ast_value)) ((ast_value*)var)->uses++; - if (!shunt_out_add(&sy, syexp(parser_ctx(parser), var))) { - parseerror(parser, "out of memory"); - goto onerr; - } - DEBUGSHUNTDO(printf("push %s\n", parser_tokval(parser))); + vec_push(sy.out, syexp(parser_ctx(parser), var)); + DEBUGSHUNTDO(con_out("push %s\n", parser_tokval(parser))); } else if (parser->tok == TOKEN_FLOATCONST) { ast_value *val; @@ -1161,11 +1419,8 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma val = parser_const_float(parser, (parser_token(parser)->constval.f)); if (!val) return false; - if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) { - parseerror(parser, "out of memory"); - goto onerr; - } - DEBUGSHUNTDO(printf("push %g\n", parser_token(parser)->constval.f)); + vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val)); + DEBUGSHUNTDO(con_out("push %g\n", parser_token(parser)->constval.f)); } else if (parser->tok == TOKEN_INTCONST) { ast_value *val; @@ -1177,11 +1432,8 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma val = parser_const_float(parser, (double)(parser_token(parser)->constval.i)); if (!val) return false; - if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) { - parseerror(parser, "out of memory"); - goto onerr; - } - DEBUGSHUNTDO(printf("push %i\n", parser_token(parser)->constval.i)); + vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val)); + DEBUGSHUNTDO(con_out("push %i\n", parser_token(parser)->constval.i)); } else if (parser->tok == TOKEN_STRINGCONST) { ast_value *val; @@ -1190,14 +1442,11 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma goto onerr; } wantop = true; - val = parser_const_string(parser, parser_tokval(parser)); + val = parser_const_string(parser, parser_tokval(parser), false); if (!val) return false; - if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) { - parseerror(parser, "out of memory"); - goto onerr; - } - DEBUGSHUNTDO(printf("push string\n")); + vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val)); + DEBUGSHUNTDO(con_out("push string\n")); } else if (parser->tok == TOKEN_VECTORCONST) { ast_value *val; @@ -1209,11 +1458,8 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma val = parser_const_vector(parser, parser_token(parser)->constval.v); if (!val) return false; - if (!shunt_out_add(&sy, syexp(parser_ctx(parser), (ast_expression*)val))) { - parseerror(parser, "out of memory"); - goto onerr; - } - DEBUGSHUNTDO(printf("push '%g %g %g'\n", + vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val)); + DEBUGSHUNTDO(con_out("push '%g %g %g'\n", parser_token(parser)->constval.v.x, parser_token(parser)->constval.v.y, parser_token(parser)->constval.v.z)); @@ -1228,7 +1474,7 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma } else if (parser->tok == ')') { if (wantop) { - DEBUGSHUNTDO(printf("do[op] )\n")); + DEBUGSHUNTDO(con_out("do[op] )\n")); --parens; if (parens < 0) break; @@ -1237,7 +1483,7 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma if (!parser_close_paren(parser, &sy, false)) goto onerr; } else { - DEBUGSHUNTDO(printf("do[nop] )\n")); + DEBUGSHUNTDO(con_out("do[nop] )\n")); --parens; if (parens < 0) break; @@ -1267,13 +1513,12 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma else { /* classify the operator */ - /* TODO: suffix operators */ const oper_info *op; const oper_info *olast = NULL; size_t o; for (o = 0; o < operator_count; ++o) { if ((!(operators[o].flags & OP_PREFIX) == wantop) && - !(operators[o].flags & OP_SUFFIX) && /* remove this */ + /* !(operators[o].flags & OP_SUFFIX) && / * remove this */ !strcmp(parser_tokval(parser), operators[o].op)) { break; @@ -1293,8 +1538,14 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma break; } - if (sy.ops_count && !sy.ops[sy.ops_count-1].paren) - olast = &operators[sy.ops[sy.ops_count-1].etype-1]; + /* a colon without a pervious question mark cannot be a ternary */ + if (!ternaries && op->id == opid2(':','?')) { + parser->tok = ':'; + break; + } + + if (vec_size(sy.ops) && !vec_last(sy.ops).paren) + olast = &operators[vec_last(sy.ops).etype-1]; while (olast && ( (op->prec < olast->prec) || @@ -1302,15 +1553,15 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma { if (!parser_sy_pop(parser, &sy)) goto onerr; - if (sy.ops_count && !sy.ops[sy.ops_count-1].paren) - olast = &operators[sy.ops[sy.ops_count-1].etype-1]; + if (vec_size(sy.ops) && !vec_last(sy.ops).paren) + olast = &operators[vec_last(sy.ops).etype-1]; else olast = NULL; } if (op->id == opid1('.') && opts_standard == COMPILER_GMQCC) { /* for gmqcc standard: open up the namespace of the previous type */ - ast_expression *prevex = sy.out[sy.out_count-1].out; + ast_expression *prevex = vec_last(sy.out).out; if (!prevex) { parseerror(parser, "unexpected member operator"); goto onerr; @@ -1328,20 +1579,15 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma if (op->id == opid1('(')) { if (wantop) { - DEBUGSHUNTDO(printf("push [op] (\n")); + size_t sycount = vec_size(sy.out); + DEBUGSHUNTDO(con_out("push [op] (\n")); ++parens; /* we expected an operator, this is the function-call operator */ - if (!shunt_ops_add(&sy, syparen(parser_ctx(parser), SY_PAREN_FUNC, sy.out_count-1))) { - parseerror(parser, "out of memory"); - goto onerr; - } + vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_FUNC, sycount-1)); } else { ++parens; - if (!shunt_ops_add(&sy, syparen(parser_ctx(parser), SY_PAREN_EXPR, 0))) { - parseerror(parser, "out of memory"); - goto onerr; - } - DEBUGSHUNTDO(printf("push [nop] (\n")); + vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_EXPR, 0)); + DEBUGSHUNTDO(con_out("push [nop] (\n")); } wantop = false; } else if (op->id == opid1('[')) { @@ -1351,46 +1597,54 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma } ++parens; /* push both the operator and the paren, this makes life easier */ - if (!shunt_ops_add(&sy, syop(parser_ctx(parser), op))) - goto onerr; - if (!shunt_ops_add(&sy, syparen(parser_ctx(parser), SY_PAREN_INDEX, 0))) - goto onerr; + vec_push(sy.ops, syop(parser_ctx(parser), op)); + vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_INDEX, 0)); wantop = false; - } else { - DEBUGSHUNTDO(printf("push operator %s\n", op->op)); - if (!shunt_ops_add(&sy, syop(parser_ctx(parser), op))) - goto onerr; + } else if (op->id == opid2('?',':')) { + wantop = false; + vec_push(sy.ops, syop(parser_ctx(parser), op)); wantop = false; + --ternaries; + } else if (op->id == opid2(':','?')) { + /* we don't push this operator */ + wantop = false; + ++ternaries; + } else { + DEBUGSHUNTDO(con_out("push operator %s\n", op->op)); + vec_push(sy.ops, syop(parser_ctx(parser), op)); + wantop = !!(op->flags & OP_SUFFIX); } } if (!parser_next(parser)) { goto onerr; } - if (parser->tok == ';' || (!parens && parser->tok == ']')) { + if (parser->tok == ';' || + (!parens && parser->tok == ']')) + { break; } } - while (sy.ops_count) { + while (vec_size(sy.ops)) { if (!parser_sy_pop(parser, &sy)) goto onerr; } parser->lex->flags.noops = true; - if (!sy.out_count) { + if (!vec_size(sy.out)) { parseerror(parser, "empty expression"); expr = NULL; } else expr = sy.out[0].out; - MEM_VECTOR_CLEAR(&sy, out); - MEM_VECTOR_CLEAR(&sy, ops); - DEBUGSHUNTDO(printf("shunt done\n")); + vec_free(sy.out); + vec_free(sy.ops); + DEBUGSHUNTDO(con_out("shunt done\n")); return expr; onerr: parser->lex->flags.noops = true; - MEM_VECTOR_CLEAR(&sy, out); - MEM_VECTOR_CLEAR(&sy, ops); + vec_free(sy.out); + vec_free(sy.ops); return NULL; } @@ -1406,15 +1660,83 @@ static ast_expression* parse_expression(parser_t *parser, bool stopatcomma) return e; } +static void parser_enterblock(parser_t *parser) +{ + vec_push(parser->variables, util_htnew(PARSER_HT_SIZE)); + vec_push(parser->_blocklocals, vec_size(parser->_locals)); + vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE)); + vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs)); +} + +static bool parser_leaveblock(parser_t *parser) +{ + bool rv = true; + size_t locals, typedefs; + + if (vec_size(parser->variables) <= PARSER_HT_LOCALS) { + parseerror(parser, "internal error: parser_leaveblock with no block"); + return false; + } + + util_htdel(vec_last(parser->variables)); + vec_pop(parser->variables); + if (!vec_size(parser->_blocklocals)) { + parseerror(parser, "internal error: parser_leaveblock with no block (2)"); + return false; + } + + locals = vec_last(parser->_blocklocals); + vec_pop(parser->_blocklocals); + while (vec_size(parser->_locals) != locals) { + ast_expression *e = vec_last(parser->_locals); + ast_value *v = (ast_value*)e; + vec_pop(parser->_locals); + if (ast_istype(e, ast_value) && !v->uses) { + if (parsewarning(parser, WARN_UNUSED_VARIABLE, "unused variable: `%s`", v->name)) + rv = false; + } + } + + typedefs = vec_last(parser->_blocktypedefs); + while (vec_size(parser->_typedefs) != typedefs) { + ast_delete(vec_last(parser->_typedefs)); + vec_pop(parser->_typedefs); + } + util_htdel(vec_last(parser->typedefs)); + vec_pop(parser->typedefs); + + return rv; +} + +static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e) +{ + vec_push(parser->_locals, e); + util_htset(vec_last(parser->variables), name, (void*)e); +} + static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out) { ast_ifthen *ifthen; ast_expression *cond, *ontrue, *onfalse = NULL; + bool ifnot = false; lex_ctx ctx = parser_ctx(parser); - /* skip the 'if' and check for opening paren */ - if (!parser_next(parser) || parser->tok != '(') { + (void)block; /* not touching */ + + /* skip the 'if', parse an optional 'not' and check for an opening paren */ + if (!parser_next(parser)) { + parseerror(parser, "expected condition or 'not'"); + return false; + } + if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "not")) { + ifnot = true; + if (!parser_next(parser)) { + parseerror(parser, "expected condition in parenthesis"); + return false; + } + } + if (parser->tok != '(') { parseerror(parser, "expected 'if' condition in parenthesis"); return false; } @@ -1461,7 +1783,10 @@ static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out) } } - ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse); + if (ifnot) + ifthen = ast_ifthen_new(ctx, cond, onfalse, ontrue); + else + ifthen = ast_ifthen_new(ctx, cond, ontrue, onfalse); *out = (ast_expression*)ifthen; return true; } @@ -1473,6 +1798,8 @@ static bool parse_while(parser_t *parser, ast_block *block, ast_expression **out lex_ctx ctx = parser_ctx(parser); + (void)block; /* not touching */ + /* skip the 'while' and check for opening paren */ if (!parser_next(parser) || parser->tok != '(') { parseerror(parser, "expected 'while' condition in parenthesis"); @@ -1517,6 +1844,8 @@ static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **o lex_ctx ctx = parser_ctx(parser); + (void)block; /* not touching */ + /* skip the 'do' and get the body */ if (!parser_next(parser)) { parseerror(parser, "expected loop body"); @@ -1580,15 +1909,14 @@ static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **o static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out) { - ast_loop *aloop; + ast_loop *aloop; ast_expression *initexpr, *cond, *increment, *ontrue; - size_t oldblocklocal; + ast_value *typevar; bool retval = true; lex_ctx ctx = parser_ctx(parser); - oldblocklocal = parser->blocklocal; - parser->blocklocal = parser->locals_count; + parser_enterblock(parser); initexpr = NULL; cond = NULL; @@ -1606,16 +1934,17 @@ static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out) goto onerr; } - if (parser->tok == TOKEN_TYPENAME) { + typevar = NULL; + if (parser->tok == TOKEN_IDENT) + typevar = parser_find_typedef(parser, parser_tokval(parser), 0); + + if (typevar || parser->tok == TOKEN_TYPENAME) { if (opts_standard != COMPILER_GMQCC) { if (parsewarning(parser, WARN_EXTENSIONS, "current standard does not allow variable declarations in for-loop initializers")) goto onerr; } - - parseerror(parser, "TODO: assignment of new variables to be non-const"); - goto onerr; - if (!parse_variable(parser, block, true)) + if (!parse_variable(parser, block, true, CV_VAR, typevar)) goto onerr; } else if (parser->tok != ';') @@ -1657,10 +1986,7 @@ static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out) increment = parse_expression_leave(parser, false); if (!increment) goto onerr; - if (!ast_istype(increment, ast_store) && - !ast_istype(increment, ast_call) && - !ast_istype(increment, ast_binstore)) - { + if (!ast_side_effects(increment)) { if (genwarning(ast_ctx(increment), WARN_EFFECTLESS_STATEMENT, "statement has no effect")) goto onerr; } @@ -1684,94 +2010,268 @@ static bool parse_for(parser_t *parser, ast_block *block, ast_expression **out) aloop = ast_loop_new(ctx, initexpr, cond, NULL, increment, ontrue); *out = (ast_expression*)aloop; - while (parser->locals_count > parser->blocklocal) - retval = retval && parser_pop_local(parser); - parser->blocklocal = oldblocklocal; + if (!parser_leaveblock(parser)) + retval = false; return retval; onerr: if (initexpr) ast_delete(initexpr); if (cond) ast_delete(cond); if (increment) ast_delete(increment); - while (parser->locals_count > parser->blocklocal) - (void)!parser_pop_local(parser); - parser->blocklocal = oldblocklocal; + (void)!parser_leaveblock(parser); return false; } -static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out) +static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out) { - if (parser->tok == TOKEN_TYPENAME || parser->tok == '.') - { - /* local variable */ - if (!block) { - parseerror(parser, "cannot declare a variable from here"); + ast_expression *exp = NULL; + ast_return *ret = NULL; + ast_value *expected = parser->function->vtype; + + (void)block; /* not touching */ + + if (!parser_next(parser)) { + parseerror(parser, "expected return expression"); + return false; + } + + if (parser->tok != ';') { + exp = parse_expression(parser, false); + if (!exp) return false; + + if (exp->expression.vtype != expected->expression.next->expression.vtype) { + parseerror(parser, "return with invalid expression"); } - if (opts_standard == COMPILER_QCC) { - if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable")) - return false; - } - if (!parse_variable(parser, block, false)) + + ret = ast_return_new(exp->expression.node.context, exp); + if (!ret) { + ast_delete(exp); return false; - *out = NULL; - return true; - } - else if (parser->tok == TOKEN_KEYWORD) - { - if (!strcmp(parser_tokval(parser), "local")) - { - if (!block) { - parseerror(parser, "cannot declare a local variable here"); - return false; - } - if (!parser_next(parser)) { - parseerror(parser, "expected variable declaration"); - return false; - } - if (!parse_variable(parser, block, true)) - return false; - *out = NULL; - return true; } - else if (!strcmp(parser_tokval(parser), "return")) - { - ast_expression *exp = NULL; - ast_return *ret = NULL; - ast_value *expected = parser->function->vtype; + } else { + if (!parser_next(parser)) + parseerror(parser, "parse error"); + if (expected->expression.next->expression.vtype != TYPE_VOID) { + if (opts_standard != COMPILER_GMQCC) + (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value"); + else + parseerror(parser, "return without value"); + } + ret = ast_return_new(parser_ctx(parser), NULL); + } + *out = (ast_expression*)ret; + return true; +} - if (!parser_next(parser)) { - parseerror(parser, "expected return expression"); - return false; - } +static bool parse_break_continue(parser_t *parser, ast_block *block, ast_expression **out, bool is_continue) +{ + lex_ctx ctx = parser_ctx(parser); - if (parser->tok != ';') { - exp = parse_expression(parser, false); - if (!exp) - return false; + (void)block; /* not touching */ - if (exp->expression.vtype != expected->expression.next->expression.vtype) { - parseerror(parser, "return with invalid expression"); - } + if (!parser_next(parser) || parser->tok != ';') { + parseerror(parser, "expected semicolon"); + return false; + } - ret = ast_return_new(exp->expression.node.context, exp); - if (!ret) { - ast_delete(exp); + if (!parser_next(parser)) + parseerror(parser, "parse error"); + + *out = (ast_expression*)ast_breakcont_new(ctx, is_continue); + return true; +} + +static bool parse_switch(parser_t *parser, ast_block *block, ast_expression **out) +{ + ast_expression *operand; + ast_value *opval; + ast_switch *switchnode; + ast_switch_case swcase; + + lex_ctx ctx = parser_ctx(parser); + + (void)block; /* not touching */ + + /* parse over the opening paren */ + if (!parser_next(parser) || parser->tok != '(') { + parseerror(parser, "expected switch operand in parenthesis"); + return false; + } + + /* parse into the expression */ + if (!parser_next(parser)) { + parseerror(parser, "expected switch operand"); + return false; + } + /* parse the operand */ + operand = parse_expression_leave(parser, false); + if (!operand) + return false; + + switchnode = ast_switch_new(ctx, operand); + + /* closing paren */ + if (parser->tok != ')') { + ast_delete(switchnode); + parseerror(parser, "expected closing paren after 'switch' operand"); + return false; + } + + /* parse over the opening paren */ + if (!parser_next(parser) || parser->tok != '{') { + ast_delete(switchnode); + parseerror(parser, "expected list of cases"); + return false; + } + + if (!parser_next(parser)) { + ast_delete(switchnode); + parseerror(parser, "expected 'case' or 'default'"); + return false; + } + + /* case list! */ + while (parser->tok != '}') { + ast_block *caseblock; + + if (parser->tok != TOKEN_KEYWORD) { + ast_delete(switchnode); + parseerror(parser, "expected 'case' or 'default'"); + return false; + } + if (!strcmp(parser_tokval(parser), "case")) { + if (!parser_next(parser)) { + ast_delete(switchnode); + parseerror(parser, "expected expression for case"); + return false; + } + swcase.value = parse_expression_leave(parser, false); + if (!swcase.value) { + ast_delete(switchnode); + parseerror(parser, "expected expression for case"); + return false; + } + if (!OPTS_FLAG(RELAXED_SWITCH)) { + opval = (ast_value*)swcase.value; + if (!ast_istype(swcase.value, ast_value) || !opval->constant) { + parseerror(parser, "case on non-constant values need to be explicitly enabled via -frelaxed-switch"); + ast_unref(operand); return false; } - } else { - if (!parser_next(parser)) - parseerror(parser, "parse error"); - if (expected->expression.next->expression.vtype != TYPE_VOID) { - if (opts_standard != COMPILER_GMQCC) - (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value"); - else - parseerror(parser, "return without value"); + } + } + else if (!strcmp(parser_tokval(parser), "default")) { + swcase.value = NULL; + if (!parser_next(parser)) { + ast_delete(switchnode); + parseerror(parser, "expected colon"); + return false; + } + } + + /* Now the colon and body */ + if (parser->tok != ':') { + if (swcase.value) ast_unref(swcase.value); + ast_delete(switchnode); + parseerror(parser, "expected colon"); + return false; + } + + if (!parser_next(parser)) { + if (swcase.value) ast_unref(swcase.value); + ast_delete(switchnode); + parseerror(parser, "expected statements or case"); + return false; + } + caseblock = ast_block_new(parser_ctx(parser)); + if (!caseblock) { + if (swcase.value) ast_unref(swcase.value); + ast_delete(switchnode); + return false; + } + swcase.code = (ast_expression*)caseblock; + vec_push(switchnode->cases, swcase); + while (true) { + ast_expression *expr; + if (parser->tok == '}') + break; + if (parser->tok == TOKEN_KEYWORD) { + if (!strcmp(parser_tokval(parser), "case") || + !strcmp(parser_tokval(parser), "default")) + { + break; } - ret = ast_return_new(parser_ctx(parser), NULL); } - *out = (ast_expression*)ret; + if (!parse_statement(parser, caseblock, &expr, true)) { + ast_delete(switchnode); + return false; + } + if (!expr) + continue; + ast_block_add_expr(caseblock, expr); + } + } + + /* closing paren */ + if (parser->tok != '}') { + ast_delete(switchnode); + parseerror(parser, "expected closing paren of case list"); + return false; + } + if (!parser_next(parser)) { + ast_delete(switchnode); + parseerror(parser, "parse error after switch"); + return false; + } + *out = (ast_expression*)switchnode; + return true; +} + +static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases) +{ + ast_value *typevar = NULL; + *out = NULL; + + if (parser->tok == TOKEN_IDENT) + typevar = parser_find_typedef(parser, parser_tokval(parser), 0); + + if (typevar || parser->tok == TOKEN_TYPENAME || parser->tok == '.') + { + /* local variable */ + if (!block) { + parseerror(parser, "cannot declare a variable from here"); + return false; + } + if (opts_standard == COMPILER_QCC) { + if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable")) + return false; + } + if (!parse_variable(parser, block, false, CV_NONE, typevar)) + return false; + *out = NULL; + return true; + } + else if (parser->tok == TOKEN_KEYWORD) + { + if (!strcmp(parser_tokval(parser), "local")) + { + if (!block) { + parseerror(parser, "cannot declare a local variable here"); + return false; + } + if (!parser_next(parser)) { + parseerror(parser, "expected variable declaration"); + return false; + } + if (!parse_variable(parser, block, true, CV_VAR, NULL)) + return false; + *out = NULL; return true; } + else if (!strcmp(parser_tokval(parser), "return")) + { + return parse_return(parser, block, out); + } else if (!strcmp(parser_tokval(parser), "if")) { return parse_if(parser, block, out); @@ -1792,6 +2292,35 @@ static bool parse_statement(parser_t *parser, ast_block *block, ast_expression * } return parse_for(parser, block, out); } + else if (!strcmp(parser_tokval(parser), "break")) + { + return parse_break_continue(parser, block, out, false); + } + else if (!strcmp(parser_tokval(parser), "continue")) + { + return parse_break_continue(parser, block, out, true); + } + else if (!strcmp(parser_tokval(parser), "switch")) + { + return parse_switch(parser, block, out); + } + else if (!strcmp(parser_tokval(parser), "case") || + !strcmp(parser_tokval(parser), "default")) + { + if (!allow_cases) { + parseerror(parser, "unexpected 'case' label"); + return false; + } + return true; + } + else if (!strcmp(parser_tokval(parser), "typedef")) + { + if (!parser_next(parser)) { + parseerror(parser, "expected type definition after 'typedef'"); + return false; + } + return parse_typedef(parser); + } parseerror(parser, "Unexpected keyword"); return false; } @@ -1804,16 +2333,21 @@ static bool parse_statement(parser_t *parser, ast_block *block, ast_expression * *out = (ast_expression*)inner; return true; } + else if (parser->tok == ';') + { + if (!parser_next(parser)) { + parseerror(parser, "parse error after empty statement"); + return false; + } + return true; + } else { ast_expression *exp = parse_expression(parser, false); if (!exp) return false; *out = exp; - if (!ast_istype(exp, ast_store) && - !ast_istype(exp, ast_call) && - !ast_istype(exp, ast_binstore)) - { + if (!ast_side_effects(exp)) { if (genwarning(ast_ctx(exp), WARN_EFFECTLESS_STATEMENT, "statement has no effect")) return false; } @@ -1821,27 +2355,11 @@ static bool parse_statement(parser_t *parser, ast_block *block, ast_expression * } } -static bool GMQCC_WARN parser_pop_local(parser_t *parser) -{ - varentry_t *ve; - parser->locals_count--; - - ve = &parser->locals[parser->locals_count]; - if (ast_istype(ve->var, ast_value) && !(((ast_value*)(ve->var))->uses)) { - if (parsewarning(parser, WARN_UNUSED_VARIABLE, "unused variable: `%s`", ve->name)) - return false; - } - mem_d(parser->locals[parser->locals_count].name); - return true; -} - static bool parse_block_into(parser_t *parser, ast_block *block, bool warnreturn) { - size_t oldblocklocal; bool retval = true; - oldblocklocal = parser->blocklocal; - parser->blocklocal = parser->locals_count; + parser_enterblock(parser); if (!parser_next(parser)) { /* skip the '{' */ parseerror(parser, "expected function body"); @@ -1850,22 +2368,18 @@ static bool parse_block_into(parser_t *parser, ast_block *block, bool warnreturn while (parser->tok != TOKEN_EOF && parser->tok < TOKEN_ERROR) { - ast_expression *expr; + ast_expression *expr = NULL; if (parser->tok == '}') break; - if (!parse_statement(parser, block, &expr)) { + if (!parse_statement(parser, block, &expr, false)) { /* parseerror(parser, "parse error"); */ block = NULL; goto cleanup; } if (!expr) continue; - if (!ast_block_exprs_add(block, expr)) { - ast_delete(expr); - block = NULL; - goto cleanup; - } + ast_block_add_expr(block, expr); } if (parser->tok != '}') { @@ -1873,8 +2387,8 @@ static bool parse_block_into(parser_t *parser, ast_block *block, bool warnreturn } else { if (warnreturn && parser->function->vtype->expression.next->expression.vtype != TYPE_VOID) { - if (!block->exprs_count || - !ast_istype(block->exprs[block->exprs_count-1], ast_return)) + if (!vec_size(block->exprs) || + !ast_istype(vec_last(block->exprs), ast_return)) { if (parsewarning(parser, WARN_MISSING_RETURN_VALUES, "control reaches end of non-void function")) { block = NULL; @@ -1886,10 +2400,9 @@ static bool parse_block_into(parser_t *parser, ast_block *block, bool warnreturn } cleanup: - while (parser->locals_count > parser->blocklocal) - retval = retval && parser_pop_local(parser); - parser->blocklocal = oldblocklocal; - return !!block; + if (!parser_leaveblock(parser)) + retval = false; + return retval && !!block; } static ast_block* parse_block(parser_t *parser, bool warnreturn) @@ -1910,44 +2423,32 @@ static ast_expression* parse_statement_or_block(parser_t *parser) ast_expression *expr = NULL; if (parser->tok == '{') return (ast_expression*)parse_block(parser, false); - if (!parse_statement(parser, NULL, &expr)) + if (!parse_statement(parser, NULL, &expr, false)) return NULL; return expr; } -/* loop method */ -static bool create_vector_members(parser_t *parser, ast_value *var, varentry_t *ve) +static bool create_vector_members(ast_value *var, ast_member **me) { size_t i; size_t len = strlen(var->name); for (i = 0; i < 3; ++i) { - ve[i].var = (ast_expression*)ast_member_new(ast_ctx(var), (ast_expression*)var, i); - if (!ve[i].var) - break; - - ve[i].name = (char*)mem_a(len+3); - if (!ve[i].name) { - ast_delete(ve[i].var); + char *name = mem_a(len+3); + memcpy(name, var->name, len); + name[len+0] = '_'; + name[len+1] = 'x'+i; + name[len+2] = 0; + me[i] = ast_member_new(ast_ctx(var), (ast_expression*)var, i, name); + mem_d(name); + if (!me[i]) break; - } - - memcpy(ve[i].name, var->name, len); - ve[i].name[len] = '_'; - ve[i].name[len+1] = 'x'+i; - ve[i].name[len+2] = 0; } if (i == 3) return true; /* unroll */ - do { - --i; - mem_d(ve[i].name); - ast_delete(ve[i].var); - ve[i].name = NULL; - ve[i].var = NULL; - } while (i); + do { ast_member_delete(me[--i]); } while(i); return false; } @@ -2011,7 +2512,7 @@ static bool parse_function_body(parser_t *parser, ast_value *var) parseerror(parser, "expected a framenumber constant in[frame,think] notation"); return false; } - if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->isconst) { + if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->hasvalue) { ast_unref(framenum); parseerror(parser, "framenumber in [frame,think] notation must be a constant"); return false; @@ -2033,7 +2534,6 @@ static bool parse_function_body(parser_t *parser, ast_value *var) { /* qc allows the use of not-yet-declared functions here * - this automatically creates a prototype */ - varentry_t varent; ast_value *thinkfunc; ast_expression *functype = fld_think->expression.next; @@ -2050,13 +2550,8 @@ static bool parse_function_body(parser_t *parser, ast_value *var) return false; } - varent.var = (ast_expression*)thinkfunc; - varent.name = util_strdup(thinkfunc->name); - if (!parser_t_globals_add(parser, varent)) { - ast_unref(framenum); - ast_delete(thinkfunc); - return false; - } + vec_push(parser->globals, (ast_expression*)thinkfunc); + util_htset(parser->htglobals, thinkfunc->name, thinkfunc); nextthink = (ast_expression*)thinkfunc; } else { @@ -2156,24 +2651,9 @@ static bool parse_function_body(parser_t *parser, ast_value *var) if (store_think) ast_delete(store_think); retval = false; } - if (retval && !ast_block_exprs_add(block, (ast_expression*)store_frame)) { - ast_delete(store_frame); - ast_delete(store_nextthink); - ast_delete(store_think); - retval = false; - } - - if (retval && !ast_block_exprs_add(block, (ast_expression*)store_nextthink)) { - ast_delete(store_nextthink); - ast_delete(store_think); - retval = false; - } - - if (retval && !ast_block_exprs_add(block, (ast_expression*)store_think) ) - { - ast_delete(store_think); - retval = false; - } + ast_block_add_expr(block, (ast_expression*)store_frame); + ast_block_add_expr(block, (ast_expression*)store_nextthink); + ast_block_add_expr(block, (ast_expression*)store_think); } if (!retval) { @@ -2185,10 +2665,12 @@ static bool parse_function_body(parser_t *parser, ast_value *var) } } - for (parami = 0; parami < var->expression.params_count; ++parami) { + parser_enterblock(parser); + + for (parami = 0; parami < vec_size(var->expression.params); ++parami) { size_t e; - varentry_t ve[3]; ast_value *param = var->expression.params[parami]; + ast_member *me[3]; if (param->expression.vtype != TYPE_VECTOR && (param->expression.vtype != TYPE_FIELD || @@ -2197,28 +2679,14 @@ static bool parse_function_body(parser_t *parser, ast_value *var) continue; } - if (!create_vector_members(parser, param, ve)) { + if (!create_vector_members(param, me)) { ast_block_delete(block); return false; } for (e = 0; e < 3; ++e) { - if (!parser_t_locals_add(parser, ve[e])) - break; - if (!ast_block_collect(block, ve[e].var)) { - parser->locals_count--; - break; - } - ve[e].var = NULL; /* collected */ - } - if (e != 3) { - parser->locals -= e; - do { - mem_d(ve[e].name); - --e; - } while (e); - ast_block_delete(block); - return false; + parser_addlocal(parser, me[e]->name, (ast_expression*)me[e]); + ast_block_collect(block, (ast_expression*)me[e]); } } @@ -2228,26 +2696,23 @@ static bool parse_function_body(parser_t *parser, ast_value *var) ast_block_delete(block); goto enderr; } - if (!parser_t_functions_add(parser, func)) { - parseerror(parser, "failed to allocate slot for function `%s`", var->name); - ast_block_delete(block); - goto enderrfn; - } + vec_push(parser->functions, func); parser->function = func; if (!parse_block_into(parser, block, true)) { ast_block_delete(block); - goto enderrfn2; + goto enderrfn; } - if (!ast_function_blocks_add(func, block)) { - ast_block_delete(block); - goto enderrfn2; - } + vec_push(func->blocks, block); parser->function = old; - while (parser->locals_count) - retval = retval && parser_pop_local(parser); + if (!parser_leaveblock(parser)) + retval = false; + if (vec_size(parser->variables) != PARSER_HT_LOCALS) { + parseerror(parser, "internal error: local scopes left"); + retval = false; + } if (parser->tok == ';') return parser_next(parser); @@ -2255,17 +2720,13 @@ static bool parse_function_body(parser_t *parser, ast_value *var) parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)"); return retval; -enderrfn2: - parser->functions_count--; enderrfn: + vec_pop(parser->functions); ast_function_delete(func); var->constval.vfunc = NULL; enderr: - while (parser->locals_count) { - parser->locals_count--; - mem_d(parser->locals[parser->locals_count].name); - } + (void)!parser_leaveblock(parser); parser->function = old; return false; } @@ -2315,10 +2776,11 @@ static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast lex_ctx ctx = ast_ctx(array); if (from+1 == afterend) { - // set this value + /* set this value */ ast_block *block; ast_return *ret; ast_array_index *subscript; + ast_store *st; int assignop = type_store_instr[value->expression.vtype]; if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR) @@ -2328,7 +2790,7 @@ static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast if (!subscript) return NULL; - ast_store *st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value); + st = ast_store_new(ctx, assignop, (ast_expression*)subscript, (ast_expression*)value); if (!st) { ast_delete(subscript); return NULL; @@ -2340,10 +2802,7 @@ static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast return NULL; } - if (!ast_block_exprs_add(block, (ast_expression*)st)) { - ast_delete(block); - return NULL; - } + ast_block_add_expr(block, (ast_expression*)st); ret = ast_return_new(ctx, NULL); if (!ret) { @@ -2351,10 +2810,7 @@ static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast return NULL; } - if (!ast_block_exprs_add(block, (ast_expression*)ret)) { - ast_delete(block); - return NULL; - } + ast_block_add_expr(block, (ast_expression*)ret); return (ast_expression*)block; } else { @@ -2379,11 +2835,12 @@ static ast_expression *array_field_setter_node( lex_ctx ctx = ast_ctx(array); if (from+1 == afterend) { - // set this value + /* set this value */ ast_block *block; ast_return *ret; ast_entfield *entfield; ast_array_index *subscript; + ast_store *st; int assignop = type_storep_instr[value->expression.vtype]; if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR) @@ -2402,7 +2859,7 @@ static ast_expression *array_field_setter_node( return NULL; } - ast_store *st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value); + st = ast_store_new(ctx, assignop, (ast_expression*)entfield, (ast_expression*)value); if (!st) { ast_delete(entfield); return NULL; @@ -2414,10 +2871,7 @@ static ast_expression *array_field_setter_node( return NULL; } - if (!ast_block_exprs_add(block, (ast_expression*)st)) { - ast_delete(block); - return NULL; - } + ast_block_add_expr(block, (ast_expression*)st); ret = ast_return_new(ctx, NULL); if (!ret) { @@ -2425,10 +2879,7 @@ static ast_expression *array_field_setter_node( return NULL; } - if (!ast_block_exprs_add(block, (ast_expression*)ret)) { - ast_delete(block); - return NULL; - } + ast_block_add_expr(block, (ast_expression*)ret); return (ast_expression*)block; } else { @@ -2474,6 +2925,7 @@ static bool parser_create_array_accessor(parser_t *parser, ast_value *array, con { ast_function *func = NULL; ast_value *fval = NULL; + ast_block *body = NULL; fval = ast_value_new(ast_ctx(array), funcname, TYPE_FUNCTION); if (!fval) { @@ -2488,15 +2940,25 @@ static bool parser_create_array_accessor(parser_t *parser, ast_value *array, con return false; } + body = ast_block_new(ast_ctx(array)); + if (!body) { + parseerror(parser, "failed to create block for array accessor"); + ast_delete(fval); + ast_delete(func); + return false; + } + + vec_push(func->blocks, body); *out = fval; + vec_push(parser->accessors, fval); + return true; } static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname) { ast_expression *root = NULL; - ast_block *body = NULL; ast_value *index = NULL; ast_value *value = NULL; ast_function *func; @@ -2512,12 +2974,6 @@ static bool parser_create_array_setter(parser_t *parser, ast_value *array, const func = fval->constval.vfunc; fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "", TYPE_VOID); - body = ast_block_new(ast_ctx(array)); - if (!body) { - parseerror(parser, "failed to create block for array accessor"); - goto cleanup; - } - index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT); value = ast_value_copy((ast_value*)array->expression.next); @@ -2526,8 +2982,8 @@ static bool parser_create_array_setter(parser_t *parser, ast_value *array, const goto cleanup; } (void)!ast_value_set_name(value, "value"); /* not important */ - (void)!ast_expression_common_params_add(&fval->expression, index); - (void)!ast_expression_common_params_add(&fval->expression, value); + vec_push(fval->expression.params, index); + vec_push(fval->expression.params, value); root = array_setter_node(parser, array, index, value, 0, array->expression.count); if (!root) { @@ -2535,12 +2991,10 @@ static bool parser_create_array_setter(parser_t *parser, ast_value *array, const goto cleanup; } - (void)!ast_block_exprs_add(body, root); - (void)!ast_function_blocks_add(func, body); + ast_block_add_expr(func->blocks[0], root); array->setter = fval; return true; cleanup: - if (body) ast_delete(body); if (index) ast_delete(index); if (value) ast_delete(value); if (root) ast_delete(root); @@ -2552,7 +3006,6 @@ cleanup: static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname) { ast_expression *root = NULL; - ast_block *body = NULL; ast_value *entity = NULL; ast_value *index = NULL; ast_value *value = NULL; @@ -2569,12 +3022,6 @@ static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, func = fval->constval.vfunc; fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "", TYPE_VOID); - body = ast_block_new(ast_ctx(array)); - if (!body) { - parseerror(parser, "failed to create block for array accessor"); - goto cleanup; - } - entity = ast_value_new(ast_ctx(array), "entity", TYPE_ENTITY); index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT); value = ast_value_copy((ast_value*)array->expression.next); @@ -2583,9 +3030,9 @@ static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, goto cleanup; } (void)!ast_value_set_name(value, "value"); /* not important */ - (void)!ast_expression_common_params_add(&fval->expression, entity); - (void)!ast_expression_common_params_add(&fval->expression, index); - (void)!ast_expression_common_params_add(&fval->expression, value); + vec_push(fval->expression.params, entity); + vec_push(fval->expression.params, index); + vec_push(fval->expression.params, value); root = array_field_setter_node(parser, array, entity, index, value, 0, array->expression.count); if (!root) { @@ -2593,12 +3040,10 @@ static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, goto cleanup; } - (void)!ast_block_exprs_add(body, root); - (void)!ast_function_blocks_add(func, body); + ast_block_add_expr(func->blocks[0], root); array->setter = fval; return true; cleanup: - if (body) ast_delete(body); if (entity) ast_delete(entity); if (index) ast_delete(index); if (value) ast_delete(value); @@ -2611,7 +3056,6 @@ cleanup: static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname) { ast_expression *root = NULL; - ast_block *body = NULL; ast_value *index = NULL; ast_value *fval; ast_function *func; @@ -2629,19 +3073,13 @@ static bool parser_create_array_getter(parser_t *parser, ast_value *array, const func = fval->constval.vfunc; fval->expression.next = ast_type_copy(ast_ctx(array), elemtype); - body = ast_block_new(ast_ctx(array)); - if (!body) { - parseerror(parser, "failed to create block for array accessor"); - goto cleanup; - } - index = ast_value_new(ast_ctx(array), "index", TYPE_FLOAT); if (!index) { parseerror(parser, "failed to create locals for array accessor"); goto cleanup; } - (void)!ast_expression_common_params_add(&fval->expression, index); + vec_push(fval->expression.params, index); root = array_getter_node(parser, array, index, 0, array->expression.count); if (!root) { @@ -2649,12 +3087,10 @@ static bool parser_create_array_getter(parser_t *parser, ast_value *array, const goto cleanup; } - (void)!ast_block_exprs_add(body, root); - (void)!ast_function_blocks_add(func, body); + ast_block_add_expr(func->blocks[0], root); array->getter = fval; return true; cleanup: - if (body) ast_delete(body); if (index) ast_delete(index); if (root) ast_delete(root); ast_delete(func); @@ -2662,17 +3098,12 @@ cleanup: return false; } -typedef struct { - MEM_VECTOR_MAKE(ast_value*, p); -} paramlist_t; -MEM_VEC_FUNCTIONS(paramlist_t, ast_value*, p) - -static ast_value *parse_typename(parser_t *parser, ast_value **storebase); +static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef); static ast_value *parse_parameter_list(parser_t *parser, ast_value *var) { lex_ctx ctx; size_t i; - paramlist_t params; + ast_value **params; ast_value *param; ast_value *fval; bool first = true; @@ -2686,7 +3117,7 @@ static ast_value *parse_parameter_list(parser_t *parser, ast_value *var) return NULL; } - MEM_VECTOR_INIT(¶ms, p); + params = NULL; /* parse variables until we hit a closing paren */ while (parser->tok != ')') { @@ -2718,13 +3149,10 @@ static ast_value *parse_parameter_list(parser_t *parser, ast_value *var) else { /* for anything else just parse a typename */ - param = parse_typename(parser, NULL); + param = parse_typename(parser, NULL, NULL); if (!param) goto on_error; - if (!paramlist_t_p_add(¶ms, param)) { - ast_delete(param); - goto on_error; - } + vec_push(params, param); if (param->expression.vtype >= TYPE_VARIANT) { char typename[1024]; ast_type_to_string((ast_expression*)param, typename, sizeof(typename)); @@ -2734,9 +3162,12 @@ static ast_value *parse_parameter_list(parser_t *parser, ast_value *var) } } + if (vec_size(params) == 1 && params[0]->expression.vtype == TYPE_VOID) + vec_free(params); + /* sanity check */ - if (params.p_count > 8) - parseerror(parser, "more than 8 parameters are currently not supported"); + if (vec_size(params) > 8 && opts_standard == COMPILER_QCC) + (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard"); /* parse-out */ if (!parser_next(parser)) { @@ -2750,15 +3181,16 @@ static ast_value *parse_parameter_list(parser_t *parser, ast_value *var) fval->expression.variadic = variadic; var = fval; - MEM_VECTOR_MOVE(¶ms, p, &var->expression, params); + var->expression.params = params; + params = NULL; return var; on_error: ast_delete(var); - for (i = 0; i < params.p_count; ++i) - ast_delete(params.p[i]); - MEM_VECTOR_CLEAR(¶ms, p); + for (i = 0; i < vec_size(params); ++i) + ast_delete(params[i]); + vec_free(params); return NULL; } @@ -2830,7 +3262,7 @@ static ast_value *parse_arraysize(parser_t *parser, ast_value *var) * void() foo(), bar * then the type-information 'void()' can be stored in 'storebase' */ -static ast_value *parse_typename(parser_t *parser, ast_value **storebase) +static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef) { ast_value *var, *tmp; lex_ctx ctx; @@ -2838,6 +3270,7 @@ static ast_value *parse_typename(parser_t *parser, ast_value **storebase) const char *name = NULL; bool isfield = false; bool wasarray = false; + size_t morefields = 0; ctx = parser_ctx(parser); @@ -2849,14 +3282,39 @@ static ast_value *parse_typename(parser_t *parser, ast_value **storebase) parseerror(parser, "expected typename for field definition"); return NULL; } - if (parser->tok != TOKEN_TYPENAME) { + + /* Further dots are handled seperately because they won't be part of the + * basetype + */ + while (parser->tok == '.') { + ++morefields; + if (!parser_next(parser)) { + parseerror(parser, "expected typename for field definition"); + return NULL; + } + } + + if (parser->tok == TOKEN_IDENT) + cached_typedef = parser_find_typedef(parser, parser_tokval(parser), 0); + if (!cached_typedef && parser->tok != TOKEN_TYPENAME) { parseerror(parser, "expected typename"); return NULL; } } /* generate the basic type value */ - var = ast_value_new(ctx, "", parser_token(parser)->constval.t); + if (cached_typedef) { + var = ast_value_copy(cached_typedef); + ast_value_set_name(var, ""); + } else + var = ast_value_new(ctx, "", parser_token(parser)->constval.t); + + for (; morefields; --morefields) { + tmp = ast_value_new(ctx, "<.type>", TYPE_FIELD); + tmp->expression.next = (ast_expression*)var; + var = tmp; + } + /* do not yet turn into a field - remember: * .void() foo; is a field too * .void()() foo; is a function @@ -2946,7 +3404,47 @@ static ast_value *parse_typename(parser_t *parser, ast_value **storebase) return var; } -static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields) +static bool parse_typedef(parser_t *parser) +{ + ast_value *typevar, *oldtype; + ast_expression *old; + + typevar = parse_typename(parser, NULL, NULL); + + if (!typevar) + return false; + + if ( (old = parser_find_var(parser, typevar->name)) ) { + parseerror(parser, "cannot define a type with the same name as a variable: %s\n" + " -> `%s` has been declared here: %s:%i", + typevar->name, ast_ctx(old).file, ast_ctx(old).line); + ast_delete(typevar); + return false; + } + + if ( (oldtype = parser_find_typedef(parser, typevar->name, vec_last(parser->_blocktypedefs))) ) { + parseerror(parser, "type `%s` has already been declared here: %s:%i", + typevar->name, ast_ctx(oldtype).file, ast_ctx(oldtype).line); + ast_delete(typevar); + return false; + } + + vec_push(parser->_typedefs, typevar); + util_htset(vec_last(parser->typedefs), typevar->name, typevar); + + if (parser->tok != ';') { + parseerror(parser, "expected semicolon after typedef"); + return false; + } + if (!parser_next(parser)) { + parseerror(parser, "parse error after typedef"); + return false; + } + + return true; +} + +static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int is_const_var, ast_value *cached_typedef) { ast_value *var; ast_value *proto; @@ -2961,19 +3459,16 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield bool cleanvar = true; bool wasarray = false; - varentry_t varent, ve[3]; + ast_member *me[3]; /* get the first complete variable */ - var = parse_typename(parser, &basetype); + var = parse_typename(parser, &basetype, cached_typedef); if (!var) { if (basetype) ast_delete(basetype); return false; } - memset(&varent, 0, sizeof(varent)); - memset(&ve, 0, sizeof(ve)); - while (true) { proto = NULL; wasarray = false; @@ -3012,6 +3507,9 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield } } + if (is_const_var == CV_CONST) + var->constant = true; + /* Part 1: * check for validity: (end_sys_..., multiple-definitions, prototypes, ...) * Also: if there was a prototype, `var` will be deleted and set to `proto` which @@ -3021,11 +3519,11 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield /* Deal with end_sys_ vars */ was_end = false; if (!strcmp(var->name, "end_sys_globals")) { - parser->crc_globals = parser->globals_count; + parser->crc_globals = vec_size(parser->globals); was_end = true; } else if (!strcmp(var->name, "end_sys_fields")) { - parser->crc_fields = parser->fields_count; + parser->crc_fields = vec_size(parser->fields); was_end = true; } if (was_end && var->expression.vtype == TYPE_FIELD) { @@ -3090,7 +3588,7 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield goto cleanup; } /* we need the new parameter-names */ - for (i = 0; i < proto->expression.params_count; ++i) + for (i = 0; i < vec_size(proto->expression.params); ++i) ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name); ast_delete(var); var = proto; @@ -3099,10 +3597,20 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield { /* other globals */ if (old) { - parseerror(parser, "global `%s` already declared here: %s:%i", - var->name, ast_ctx(old).file, ast_ctx(old).line); - retval = false; - goto cleanup; + if (opts_standard == COMPILER_GMQCC) { + parseerror(parser, "global `%s` already declared here: %s:%i", + var->name, ast_ctx(old).file, ast_ctx(old).line); + retval = false; + goto cleanup; + } else { + if (parsewarning(parser, WARN_DOUBLE_DECLARATION, + "global `%s` already declared here: %s:%i", + var->name, ast_ctx(old).file, ast_ctx(old).line)) + { + retval = false; + goto cleanup; + } + } } if (opts_standard == COMPILER_QCC && (old = parser_find_field(parser, var->name))) @@ -3118,7 +3626,7 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield } else /* it's not a global */ { - old = parser_find_local(parser, var->name, parser->blocklocal, &isparam); + old = parser_find_local(parser, var->name, vec_size(parser->variables)-1, &isparam); if (old && !isparam) { parseerror(parser, "local `%s` already declared here: %s:%i", var->name, ast_ctx(old).file, (int)ast_ctx(old).line); @@ -3154,73 +3662,48 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield isvector = true; if (isvector) { - if (!create_vector_members(parser, var, ve)) { + if (!create_vector_members(var, me)) { retval = false; goto cleanup; } } - varent.name = util_strdup(var->name); - varent.var = (ast_expression*)var; - if (!localblock) { /* deal with global variables, fields, functions */ if (!nofields && var->expression.vtype == TYPE_FIELD) { - if (!(retval = parser_t_fields_add(parser, varent))) - goto cleanup; + vec_push(parser->fields, (ast_expression*)var); + util_htset(parser->htfields, var->name, var); if (isvector) { for (i = 0; i < 3; ++i) { - if (!(retval = parser_t_fields_add(parser, ve[i]))) - break; - } - if (!retval) { - parser->fields_count -= i+1; - goto cleanup; + vec_push(parser->fields, (ast_expression*)me[i]); + util_htset(parser->htfields, me[i]->name, me[i]); } } } else { - if (!(retval = parser_t_globals_add(parser, varent))) - goto cleanup; + vec_push(parser->globals, (ast_expression*)var); + util_htset(parser->htglobals, var->name, var); if (isvector) { for (i = 0; i < 3; ++i) { - if (!(retval = parser_t_globals_add(parser, ve[i]))) - break; - } - if (!retval) { - parser->globals_count -= i+1; - goto cleanup; + vec_push(parser->globals, (ast_expression*)me[i]); + util_htset(parser->htglobals, me[i]->name, me[i]); } } } } else { - if (!(retval = parser_t_locals_add(parser, varent))) - goto cleanup; - if (!(retval = ast_block_locals_add(localblock, var))) { - parser->locals_count--; - goto cleanup; - } + vec_push(localblock->locals, var); + parser_addlocal(parser, var->name, (ast_expression*)var); if (isvector) { for (i = 0; i < 3; ++i) { - if (!(retval = parser_t_locals_add(parser, ve[i]))) - break; - if (!(retval = ast_block_collect(localblock, ve[i].var))) - break; - ve[i].var = NULL; /* from here it's being collected in the block */ - } - if (!retval) { - parser->locals_count -= i+1; - localblock->locals_count--; - goto cleanup; + parser_addlocal(parser, me[i]->name, (ast_expression*)me[i]); + ast_block_collect(localblock, (ast_expression*)me[i]); } } } - varent.name = NULL; - ve[0].name = ve[1].name = ve[2].name = NULL; - ve[0].var = ve[1].var = ve[2].var = NULL; - cleanvar = false; } + me[0] = me[1] = me[2] = NULL; + cleanvar = false; /* Part 2.2 * deal with arrays */ @@ -3291,7 +3774,7 @@ skipvar: if (parser->tok != '{') { if (parser->tok != '=') { - parseerror(parser, "missing semicolon or initializer"); + parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser)); break; } @@ -3305,7 +3788,7 @@ skipvar: } if (parser->tok == '#') { - ast_function *func; + ast_function *func = NULL; if (localblock) { parseerror(parser, "cannot declare builtins within functions"); @@ -3328,23 +3811,28 @@ skipvar: break; } - func = ast_function_new(ast_ctx(var), var->name, var); - if (!func) { - parseerror(parser, "failed to allocate function for `%s`", var->name); - break; - } - if (!parser_t_functions_add(parser, func)) { - parseerror(parser, "failed to allocate slot for function `%s`", var->name); - ast_function_delete(func); - var->constval.vfunc = NULL; - break; + if (var->hasvalue) { + (void)!parsewarning(parser, WARN_DOUBLE_DECLARATION, + "builtin `%s` has already been defined\n" + " -> previous declaration here: %s:%i", + var->name, ast_ctx(var).file, (int)ast_ctx(var).line); } + else + { + func = ast_function_new(ast_ctx(var), var->name, var); + if (!func) { + parseerror(parser, "failed to allocate function for `%s`", var->name); + break; + } + vec_push(parser->functions, func); - func->builtin = -parser_token(parser)->constval.i; + func->builtin = -parser_token(parser)->constval.i; + } if (!parser_next(parser)) { parseerror(parser, "expected comma or semicolon"); - ast_function_delete(func); + if (func) + ast_function_delete(func); var->constval.vfunc = NULL; break; } @@ -3370,11 +3858,17 @@ skipvar: if (!localblock) { cval = (ast_value*)cexp; - if (!ast_istype(cval, ast_value) || !cval->isconst) + if (!ast_istype(cval, ast_value) || !cval->hasvalue || !cval->constant) parseerror(parser, "cannot initialize a global constant variable with a non-constant expression"); else { - var->isconst = true; + if (opts_standard != COMPILER_GMQCC && + !OPTS_FLAG(INITIALIZED_NONCONSTANTS) && + is_const_var != CV_VAR) + { + var->constant = true; + } + var->hasvalue = true; if (cval->expression.vtype == TYPE_STRING) var->constval.vstring = parser_strdup(cval->constval.vstring); else @@ -3382,29 +3876,19 @@ skipvar: ast_unref(cval); } } else { - shunt sy; - MEM_VECTOR_INIT(&sy, out); - MEM_VECTOR_INIT(&sy, ops); - if (!shunt_out_add(&sy, syexp(ast_ctx(var), (ast_expression*)var)) || - !shunt_out_add(&sy, syexp(ast_ctx(cexp), (ast_expression*)cexp)) || - !shunt_ops_add(&sy, syop(ast_ctx(var), parser->assign_op))) - { - parseerror(parser, "internal error: failed to prepare initializer"); - ast_unref(cexp); - } - else if (!parser_sy_pop(parser, &sy)) + shunt sy = { NULL, NULL }; + vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var)); + vec_push(sy.out, syexp(ast_ctx(cexp), (ast_expression*)cexp)); + vec_push(sy.ops, syop(ast_ctx(var), parser->assign_op)); + if (!parser_sy_pop(parser, &sy)) ast_unref(cexp); else { - if (sy.out_count != 1 && sy.ops_count != 0) + if (vec_size(sy.out) != 1 && vec_size(sy.ops) != 0) parseerror(parser, "internal error: leaked operands"); - else if (!ast_block_exprs_add(localblock, (ast_expression*)sy.out[0].out)) { - parseerror(parser, "failed to create intializing expression"); - ast_unref(sy.out[0].out); - ast_unref(cexp); - } + ast_block_add_expr(localblock, (ast_expression*)sy.out[0].out); } - MEM_VECTOR_CLEAR(&sy, out); - MEM_VECTOR_CLEAR(&sy, ops); + vec_free(sy.out); + vec_free(sy.ops); } } @@ -3452,32 +3936,56 @@ cleanup: ast_delete(basetype); if (cleanvar && var) ast_delete(var); - if (varent.name) mem_d(varent.name); - if (ve[0].name) mem_d(ve[0].name); - if (ve[1].name) mem_d(ve[1].name); - if (ve[2].name) mem_d(ve[2].name); - if (ve[0].var) mem_d(ve[0].var); - if (ve[1].var) mem_d(ve[1].var); - if (ve[2].var) mem_d(ve[2].var); + if (me[0]) ast_member_delete(me[0]); + if (me[1]) ast_member_delete(me[1]); + if (me[2]) ast_member_delete(me[2]); return retval; } static bool parser_global_statement(parser_t *parser) { - if (parser->tok == TOKEN_TYPENAME || parser->tok == '.') + ast_value *istype = NULL; + if (parser->tok == TOKEN_IDENT) + istype = parser_find_typedef(parser, parser_tokval(parser), 0); + + if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.') { - return parse_variable(parser, NULL, false); + return parse_variable(parser, NULL, false, CV_NONE, istype); } - else if (parser->tok == TOKEN_KEYWORD) + else if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "var")) { - /* handle 'var' and 'const' */ if (!strcmp(parser_tokval(parser), "var")) { if (!parser_next(parser)) { parseerror(parser, "expected variable declaration after 'var'"); return false; } - return parse_variable(parser, NULL, true); + return parse_variable(parser, NULL, true, CV_VAR, NULL); + } + } + else if (parser->tok == TOKEN_KEYWORD) + { + if (!strcmp(parser_tokval(parser), "const")) { + if (!parser_next(parser)) { + parseerror(parser, "expected variable declaration after 'const'"); + return false; + } + if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "var")) { + (void)!parsewarning(parser, WARN_CONST_VAR, "ignoring `var` after const qualifier"); + if (!parser_next(parser)) { + parseerror(parser, "expected variable declaration after 'const var'"); + return false; + } + } + return parse_variable(parser, NULL, true, CV_CONST, NULL); + } + else if (!strcmp(parser_tokval(parser), "typedef")) { + if (!parser_next(parser)) { + parseerror(parser, "expected type definition after 'typedef'"); + return false; + } + return parse_typedef(parser); } + parseerror(parser, "unrecognized keyword `%s`", parser_tokval(parser)); return false; } else if (parser->tok == '$') @@ -3495,11 +4003,88 @@ static bool parser_global_statement(parser_t *parser) return true; } +static uint16_t progdefs_crc_sum(uint16_t old, const char *str) +{ + return util_crc16(old, str, strlen(str)); +} + +static void progdefs_crc_file(const char *str) +{ + /* write to progdefs.h here */ + (void)str; +} + +static uint16_t progdefs_crc_both(uint16_t old, const char *str) +{ + old = progdefs_crc_sum(old, str); + progdefs_crc_file(str); + return old; +} + +static void generate_checksum(parser_t *parser) +{ + uint16_t crc = 0xFFFF; + size_t i; + ast_value *value; + + crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{"); + crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n"); + /* + progdefs_crc_file("\tint\tpad;\n"); + progdefs_crc_file("\tint\tofs_return[3];\n"); + progdefs_crc_file("\tint\tofs_parm0[3];\n"); + progdefs_crc_file("\tint\tofs_parm1[3];\n"); + progdefs_crc_file("\tint\tofs_parm2[3];\n"); + progdefs_crc_file("\tint\tofs_parm3[3];\n"); + progdefs_crc_file("\tint\tofs_parm4[3];\n"); + progdefs_crc_file("\tint\tofs_parm5[3];\n"); + progdefs_crc_file("\tint\tofs_parm6[3];\n"); + progdefs_crc_file("\tint\tofs_parm7[3];\n"); + */ + for (i = 0; i < parser->crc_globals; ++i) { + if (!ast_istype(parser->globals[i], ast_value)) + continue; + value = (ast_value*)(parser->globals[i]); + switch (value->expression.vtype) { + case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break; + case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break; + case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break; + case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break; + default: + crc = progdefs_crc_both(crc, "\tint\t"); + break; + } + crc = progdefs_crc_both(crc, value->name); + crc = progdefs_crc_both(crc, ";\n"); + } + crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n"); + for (i = 0; i < parser->crc_fields; ++i) { + if (!ast_istype(parser->fields[i], ast_value)) + continue; + value = (ast_value*)(parser->fields[i]); + switch (value->expression.next->expression.vtype) { + case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break; + case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break; + case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break; + case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break; + default: + crc = progdefs_crc_both(crc, "\tint\t"); + break; + } + crc = progdefs_crc_both(crc, value->name); + crc = progdefs_crc_both(crc, ";\n"); + } + crc = progdefs_crc_both(crc, "} entvars_t;\n\n"); + + code_crc = crc; +} + static parser_t *parser; bool parser_init() { size_t i; + parser = (parser_t*)mem_a(sizeof(parser_t)); if (!parser) return false; @@ -3517,17 +4102,16 @@ bool parser_init() mem_d(parser); return false; } + + vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE)); + vec_push(parser->variables, parser->htglobals = util_htnew(PARSER_HT_SIZE)); + vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE)); + vec_push(parser->_blocktypedefs, 0); return true; } -bool parser_compile(const char *filename) +bool parser_compile() { - parser->lex = lex_open(filename); - if (!parser->lex) { - printf("failed to open file \"%s\"\n", filename); - return false; - } - /* initial lexer/parser state */ parser->lex->flags.noops = true; @@ -3558,110 +4142,85 @@ bool parser_compile(const char *filename) return !parser->errors; } -void parser_cleanup() +bool parser_compile_file(const char *filename) { - size_t i; - for (i = 0; i < parser->functions_count; ++i) { - ast_delete(parser->functions[i]); - } - for (i = 0; i < parser->imm_vector_count; ++i) { - ast_delete(parser->imm_vector[i]); - } - for (i = 0; i < parser->imm_string_count; ++i) { - ast_delete(parser->imm_string[i]); - } - for (i = 0; i < parser->imm_float_count; ++i) { - ast_delete(parser->imm_float[i]); - } - for (i = 0; i < parser->fields_count; ++i) { - ast_delete(parser->fields[i].var); - mem_d(parser->fields[i].name); - } - for (i = 0; i < parser->globals_count; ++i) { - ast_delete(parser->globals[i].var); - mem_d(parser->globals[i].name); + parser->lex = lex_open(filename); + if (!parser->lex) { + con_err("failed to open file \"%s\"\n", filename); + return false; } - MEM_VECTOR_CLEAR(parser, functions); - MEM_VECTOR_CLEAR(parser, imm_vector); - MEM_VECTOR_CLEAR(parser, imm_string); - MEM_VECTOR_CLEAR(parser, imm_float); - MEM_VECTOR_CLEAR(parser, globals); - MEM_VECTOR_CLEAR(parser, fields); - MEM_VECTOR_CLEAR(parser, locals); - - mem_d(parser); + return parser_compile(); } -static uint16_t progdefs_crc_sum(uint16_t old, const char *str) +bool parser_compile_string_len(const char *name, const char *str, size_t len) { - return util_crc16(old, str, strlen(str)); -} - -static void progdefs_crc_file(const char *str) -{ - /* write to progdefs.h here */ + parser->lex = lex_open_string(str, len, name); + if (!parser->lex) { + con_err("failed to create lexer for string \"%s\"\n", name); + return false; + } + return parser_compile(); } -static uint16_t progdefs_crc_both(uint16_t old, const char *str) +bool parser_compile_string(const char *name, const char *str) { - old = progdefs_crc_sum(old, str); - progdefs_crc_file(str); - return old; + parser->lex = lex_open_string(str, strlen(str), name); + if (!parser->lex) { + con_err("failed to create lexer for string \"%s\"\n", name); + return false; + } + return parser_compile(); } -static void generate_checksum(parser_t *parser) +void parser_cleanup() { - uint16_t crc = 0xFFFF; size_t i; + for (i = 0; i < vec_size(parser->accessors); ++i) { + ast_delete(parser->accessors[i]->constval.vfunc); + parser->accessors[i]->constval.vfunc = NULL; + ast_delete(parser->accessors[i]); + } + for (i = 0; i < vec_size(parser->functions); ++i) { + ast_delete(parser->functions[i]); + } + for (i = 0; i < vec_size(parser->imm_vector); ++i) { + ast_delete(parser->imm_vector[i]); + } + for (i = 0; i < vec_size(parser->imm_string); ++i) { + ast_delete(parser->imm_string[i]); + } + for (i = 0; i < vec_size(parser->imm_float); ++i) { + ast_delete(parser->imm_float[i]); + } + for (i = 0; i < vec_size(parser->fields); ++i) { + ast_delete(parser->fields[i]); + } + for (i = 0; i < vec_size(parser->globals); ++i) { + ast_delete(parser->globals[i]); + } + vec_free(parser->accessors); + vec_free(parser->functions); + vec_free(parser->imm_vector); + vec_free(parser->imm_string); + vec_free(parser->imm_float); + vec_free(parser->globals); + vec_free(parser->fields); + + for (i = 0; i < vec_size(parser->variables); ++i) + util_htdel(parser->variables[i]); + vec_free(parser->variables); + vec_free(parser->_blocklocals); + vec_free(parser->_locals); + + for (i = 0; i < vec_size(parser->_typedefs); ++i) + ast_delete(parser->_typedefs[i]); + vec_free(parser->_typedefs); + for (i = 0; i < vec_size(parser->typedefs); ++i) + util_htdel(parser->typedefs[i]); + vec_free(parser->typedefs); + vec_free(parser->_blocktypedefs); - crc = progdefs_crc_both(crc, "\n/* file generated by qcc, do not modify */\n\ntypedef struct\n{"); - crc = progdefs_crc_sum(crc, "\tint\tpad[28];\n"); - /* - progdefs_crc_file("\tint\tpad;\n"); - progdefs_crc_file("\tint\tofs_return[3];\n"); - progdefs_crc_file("\tint\tofs_parm0[3];\n"); - progdefs_crc_file("\tint\tofs_parm1[3];\n"); - progdefs_crc_file("\tint\tofs_parm2[3];\n"); - progdefs_crc_file("\tint\tofs_parm3[3];\n"); - progdefs_crc_file("\tint\tofs_parm4[3];\n"); - progdefs_crc_file("\tint\tofs_parm5[3];\n"); - progdefs_crc_file("\tint\tofs_parm6[3];\n"); - progdefs_crc_file("\tint\tofs_parm7[3];\n"); - */ - for (i = 0; i < parser->crc_globals; ++i) { - if (!ast_istype(parser->globals[i].var, ast_value)) - continue; - switch (parser->globals[i].var->expression.vtype) { - case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break; - case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break; - case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break; - case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break; - default: - crc = progdefs_crc_both(crc, "\tint\t"); - break; - } - crc = progdefs_crc_both(crc, parser->globals[i].name); - crc = progdefs_crc_both(crc, ";\n"); - } - crc = progdefs_crc_both(crc, "} globalvars_t;\n\ntypedef struct\n{\n"); - for (i = 0; i < parser->crc_fields; ++i) { - if (!ast_istype(parser->fields[i].var, ast_value)) - continue; - switch (parser->fields[i].var->expression.next->expression.vtype) { - case TYPE_FLOAT: crc = progdefs_crc_both(crc, "\tfloat\t"); break; - case TYPE_VECTOR: crc = progdefs_crc_both(crc, "\tvec3_t\t"); break; - case TYPE_STRING: crc = progdefs_crc_both(crc, "\tstring_t\t"); break; - case TYPE_FUNCTION: crc = progdefs_crc_both(crc, "\tfunc_t\t"); break; - default: - crc = progdefs_crc_both(crc, "\tint\t"); - break; - } - crc = progdefs_crc_both(crc, parser->fields[i].name); - crc = progdefs_crc_both(crc, ";\n"); - } - crc = progdefs_crc_both(crc, "} entvars_t;\n\n"); - - code_crc = crc; + mem_d(parser); } bool parser_finish(const char *output) @@ -3674,27 +4233,27 @@ bool parser_finish(const char *output) { ir = ir_builder_new("gmqcc_out"); if (!ir) { - printf("failed to allocate builder\n"); + con_out("failed to allocate builder\n"); return false; } - for (i = 0; i < parser->fields_count; ++i) { + for (i = 0; i < vec_size(parser->fields); ++i) { ast_value *field; - bool isconst; - if (!ast_istype(parser->fields[i].var, ast_value)) + bool hasvalue; + if (!ast_istype(parser->fields[i], ast_value)) continue; - field = (ast_value*)parser->fields[i].var; - isconst = field->isconst; - field->isconst = false; + field = (ast_value*)parser->fields[i]; + hasvalue = field->hasvalue; + field->hasvalue = false; if (!ast_global_codegen((ast_value*)field, ir, true)) { - printf("failed to generate field %s\n", field->name); + con_out("failed to generate field %s\n", field->name); ir_builder_delete(ir); return false; } - if (isconst) { + if (hasvalue) { ir_value *ifld; ast_expression *subtype; - field->isconst = true; + field->hasvalue = true; subtype = field->expression.next; ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype); if (subtype->expression.vtype == TYPE_FIELD) @@ -3704,12 +4263,12 @@ bool parser_finish(const char *output) (void)!ir_value_set_field(field->ir_v, ifld); } } - for (i = 0; i < parser->globals_count; ++i) { + for (i = 0; i < vec_size(parser->globals); ++i) { ast_value *asvalue; - if (!ast_istype(parser->globals[i].var, ast_value)) + if (!ast_istype(parser->globals[i], ast_value)) continue; - asvalue = (ast_value*)(parser->globals[i].var); - if (!asvalue->uses && !asvalue->isconst && asvalue->expression.vtype != TYPE_FUNCTION) { + asvalue = (ast_value*)(parser->globals[i]); + if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) { if (strcmp(asvalue->name, "end_sys_globals") && strcmp(asvalue->name, "end_sys_fields")) { @@ -3718,43 +4277,43 @@ bool parser_finish(const char *output) } } if (!ast_global_codegen(asvalue, ir, false)) { - printf("failed to generate global %s\n", parser->globals[i].name); + con_out("failed to generate global %s\n", asvalue->name); ir_builder_delete(ir); return false; } } - for (i = 0; i < parser->imm_float_count; ++i) { + for (i = 0; i < vec_size(parser->imm_float); ++i) { if (!ast_global_codegen(parser->imm_float[i], ir, false)) { - printf("failed to generate global %s\n", parser->imm_float[i]->name); + con_out("failed to generate global %s\n", parser->imm_float[i]->name); ir_builder_delete(ir); return false; } } - for (i = 0; i < parser->imm_string_count; ++i) { + for (i = 0; i < vec_size(parser->imm_string); ++i) { if (!ast_global_codegen(parser->imm_string[i], ir, false)) { - printf("failed to generate global %s\n", parser->imm_string[i]->name); + con_out("failed to generate global %s\n", parser->imm_string[i]->name); ir_builder_delete(ir); return false; } } - for (i = 0; i < parser->imm_vector_count; ++i) { + for (i = 0; i < vec_size(parser->imm_vector); ++i) { if (!ast_global_codegen(parser->imm_vector[i], ir, false)) { - printf("failed to generate global %s\n", parser->imm_vector[i]->name); + con_out("failed to generate global %s\n", parser->imm_vector[i]->name); ir_builder_delete(ir); return false; } } - for (i = 0; i < parser->globals_count; ++i) { + for (i = 0; i < vec_size(parser->globals); ++i) { ast_value *asvalue; - if (!ast_istype(parser->globals[i].var, ast_value)) + if (!ast_istype(parser->globals[i], ast_value)) continue; - asvalue = (ast_value*)(parser->globals[i].var); + asvalue = (ast_value*)(parser->globals[i]); if (asvalue->setter) { if (!ast_global_codegen(asvalue->setter, ir, false) || !ast_function_codegen(asvalue->setter->constval.vfunc, ir) || !ir_function_finalize(asvalue->setter->constval.vfunc->ir_func)) { - printf("failed to generate setter for %s\n", parser->globals[i].name); + printf("failed to generate setter for %s\n", asvalue->name); ir_builder_delete(ir); return false; } @@ -3764,15 +4323,15 @@ bool parser_finish(const char *output) !ast_function_codegen(asvalue->getter->constval.vfunc, ir) || !ir_function_finalize(asvalue->getter->constval.vfunc->ir_func)) { - printf("failed to generate getter for %s\n", parser->globals[i].name); + printf("failed to generate getter for %s\n", asvalue->name); ir_builder_delete(ir); return false; } } } - for (i = 0; i < parser->fields_count; ++i) { + for (i = 0; i < vec_size(parser->fields); ++i) { ast_value *asvalue; - asvalue = (ast_value*)(parser->fields[i].var->expression.next); + asvalue = (ast_value*)(parser->fields[i]->expression.next); if (!ast_istype((ast_expression*)asvalue, ast_value)) continue; @@ -3783,7 +4342,7 @@ bool parser_finish(const char *output) !ast_function_codegen(asvalue->setter->constval.vfunc, ir) || !ir_function_finalize(asvalue->setter->constval.vfunc->ir_func)) { - printf("failed to generate setter for %s\n", parser->fields[i].name); + printf("failed to generate setter for %s\n", asvalue->name); ir_builder_delete(ir); return false; } @@ -3793,33 +4352,37 @@ bool parser_finish(const char *output) !ast_function_codegen(asvalue->getter->constval.vfunc, ir) || !ir_function_finalize(asvalue->getter->constval.vfunc->ir_func)) { - printf("failed to generate getter for %s\n", parser->fields[i].name); + printf("failed to generate getter for %s\n", asvalue->name); ir_builder_delete(ir); return false; } } } - for (i = 0; i < parser->functions_count; ++i) { + for (i = 0; i < vec_size(parser->functions); ++i) { if (!ast_function_codegen(parser->functions[i], ir)) { - printf("failed to generate function %s\n", parser->functions[i]->name); + con_out("failed to generate function %s\n", parser->functions[i]->name); ir_builder_delete(ir); return false; } + } + if (opts_dump) + ir_builder_dump(ir, con_out); + for (i = 0; i < vec_size(parser->functions); ++i) { if (!ir_function_finalize(parser->functions[i]->ir_func)) { - printf("failed to finalize function %s\n", parser->functions[i]->name); + con_out("failed to finalize function %s\n", parser->functions[i]->name); ir_builder_delete(ir); return false; } } if (retval) { - if (opts_dump) - ir_builder_dump(ir, printf); + if (opts_dumpfin) + ir_builder_dump(ir, con_out); generate_checksum(parser); if (!ir_builder_generate(ir, output)) { - printf("*** failed to generate output file\n"); + con_out("*** failed to generate output file\n"); ir_builder_delete(ir); return false; } @@ -3829,6 +4392,6 @@ bool parser_finish(const char *output) return retval; } - printf("*** there were compile errors\n"); + con_out("*** there were compile errors\n"); return false; }