X-Git-Url: https://git.xonotic.org/?p=xonotic%2Fgmqcc.git;a=blobdiff_plain;f=parser.c;h=4ba08b4cf3bc00036b60c517c3075623488f0da7;hp=b2e2abd7fff2c6b0a087c02271e3761deeb33a0a;hb=063c50fce450693f0098cbc4a28efd109cbed01b;hpb=12ffd83d4f87e9ef408faf3b171721bbdacc20e6 diff --git a/parser.c b/parser.c index b2e2abd..f979347 100644 --- a/parser.c +++ b/parser.c @@ -2,7 +2,7 @@ * Copyright (C) 2012, 2013 * Wolfgang Bumiller * Dale Weiler - * + * * 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 @@ -21,8 +21,8 @@ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ -#include -#include +#include +#include #include "gmqcc.h" #include "lexer.h" @@ -31,14 +31,15 @@ /* beginning of locals */ #define PARSER_HT_LOCALS 2 -#define PARSER_HT_SIZE 1024 +#define PARSER_HT_SIZE 128 #define TYPEDEF_HT_SIZE 16 -enum parser_pot { POT_PAREN, POT_TERNARY1, POT_TERNARY2 }; -typedef struct { +typedef struct parser_s { lex_file *lex; int tok; + bool ast_cleaned; + ast_expression **globals; ast_expression **fields; ast_function **functions; @@ -47,12 +48,17 @@ typedef struct { ast_value **imm_vector; size_t translated; + ht ht_imm_string; + /* 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_float_neg_one; + ast_value *imm_vector_zero; + ast_value *nil; ast_value *reserved_version; @@ -60,6 +66,7 @@ typedef struct { size_t crc_fields; ast_function *function; + ht aliases; /* All the labels the function defined... * Should they be in ast_function instead? @@ -89,12 +96,6 @@ typedef struct { /* we store the '=' operator info */ const oper_info *assign_op; - /* Keep track of our ternary vs parenthesis nesting state. - * If we reach a 'comma' operator in a ternary without a paren, - * we shall trigger -Wternary-precedence. - */ - enum parser_pot *pot; - /* magic values */ ast_value *const_vec[3]; @@ -142,16 +143,6 @@ static bool GMQCC_WARN parsewarning(parser_t *parser, int warntype, const char * return r; } -static bool GMQCC_WARN genwarning(lex_ctx ctx, int warntype, const char *fmt, ...) -{ - bool r; - va_list ap; - va_start(ap, fmt); - r = vcompile_warning(ctx, warntype, fmt, ap); - va_end(ap); - return r; -} - /********************************************************************** * some maths used for constant folding */ @@ -192,7 +183,7 @@ vector vec3_mulvf(vector a, float b) * parsing */ -bool parser_next(parser_t *parser) +static bool parser_next(parser_t *parser) { /* lex_do kills the previous token */ parser->tok = lex_do(parser->lex); @@ -227,6 +218,7 @@ static ast_value* parser_const_float(parser_t *parser, double d) out = ast_value_new(ctx, "#IMMEDIATE", TYPE_FLOAT); out->cvq = CV_CONST; out->hasvalue = true; + out->isimm = true; out->constval.vfloat = d; vec_push(parser->imm_float, out); return out; @@ -239,6 +231,12 @@ static ast_value* parser_const_float_0(parser_t *parser) return parser->imm_float_zero; } +static ast_value* parser_const_float_neg1(parser_t *parser) { + if (!parser->imm_float_neg_one) + parser->imm_float_neg_one = parser_const_float(parser, -1); + return parser->imm_float_neg_one; +} + static ast_value* parser_const_float_1(parser_t *parser) { if (!parser->imm_float_one) @@ -259,22 +257,36 @@ static char *parser_strdup(const char *str) static ast_value* parser_const_string(parser_t *parser, const char *str, bool dotranslate) { - size_t i; + size_t hash = util_hthash(parser->ht_imm_string, str); ast_value *out; + if ( (out = (ast_value*)util_htgeth(parser->ht_imm_string, str, hash)) ) { + if (dotranslate && out->name[0] == '#') { + char name[32]; + util_snprintf(name, sizeof(name), "dotranslate_%lu", (unsigned long)(parser->translated++)); + ast_value_set_name(out, name); + out->expression.flags |= AST_FLAG_INCLUDE_DEF; + } + return out; + } + /* for (i = 0; i < vec_size(parser->imm_string); ++i) { if (!strcmp(parser->imm_string[i]->constval.vstring, str)) return parser->imm_string[i]; } + */ if (dotranslate) { char name[32]; - snprintf(name, sizeof(name), "dotranslate_%lu", (unsigned long)(parser->translated++)); + util_snprintf(name, sizeof(name), "dotranslate_%lu", (unsigned long)(parser->translated++)); out = ast_value_new(parser_ctx(parser), name, TYPE_STRING); + out->expression.flags |= AST_FLAG_INCLUDE_DEF; } else out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_STRING); out->cvq = CV_CONST; out->hasvalue = true; + out->isimm = true; out->constval.vstring = parser_strdup(str); vec_push(parser->imm_string, out); + util_htseth(parser->ht_imm_string, str, hash, out); return out; } @@ -289,6 +301,7 @@ static ast_value* parser_const_vector(parser_t *parser, vector v) out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_VECTOR); out->cvq = CV_CONST; out->hasvalue = true; + out->isimm = true; out->constval.vvec = v; vec_push(parser->imm_vector, out); return out; @@ -326,6 +339,9 @@ static ast_expression* parser_find_label(parser_t *parser, const char *name) static ast_expression* parser_find_global(parser_t *parser, const char *name) { + ast_expression *var = (ast_expression*)util_htget(parser->aliases, parser_tokval(parser)); + if (var) + return var; return (ast_expression*)util_htget(parser->htglobals, name); } @@ -383,26 +399,34 @@ static ast_value* parser_find_typedef(parser_t *parser, const char *name, size_t return NULL; } +/* include intrinsics */ +#include "intrin.h" + typedef struct { size_t etype; /* 0 = expression, others are operators */ - int paren; + bool isparen; size_t off; ast_expression *out; ast_block *block; /* for commas and function calls */ lex_ctx ctx; } sy_elem; + +enum { + PAREN_EXPR, + PAREN_FUNC, + PAREN_INDEX, + PAREN_TERNARY1, + PAREN_TERNARY2 +}; typedef struct { - sy_elem *out; - sy_elem *ops; + sy_elem *out; + sy_elem *ops; + size_t *argc; + unsigned int *paren; } shunt; -#define SY_PAREN_EXPR '(' -#define SY_PAREN_FUNC 'f' -#define SY_PAREN_INDEX '[' -#define SY_PAREN_TERNARY '?' - static sy_elem syexp(lex_ctx ctx, ast_expression *v) { sy_elem e; e.etype = 0; @@ -410,7 +434,7 @@ static sy_elem syexp(lex_ctx ctx, ast_expression *v) { e.out = v; e.block = NULL; e.ctx = ctx; - e.paren = 0; + e.isparen = false; return e; } @@ -421,7 +445,7 @@ static sy_elem syblock(lex_ctx ctx, ast_block *v) { e.out = (ast_expression*)v; e.block = v; e.ctx = ctx; - e.paren = 0; + e.isparen = false; return e; } @@ -432,33 +456,27 @@ static sy_elem syop(lex_ctx ctx, const oper_info *op) { e.out = NULL; e.block = NULL; e.ctx = ctx; - e.paren = 0; + e.isparen = false; return e; } -static sy_elem syparen(lex_ctx ctx, int p, size_t off) { +static sy_elem syparen(lex_ctx ctx, size_t off) { sy_elem e; e.etype = 0; e.off = off; e.out = NULL; e.block = NULL; e.ctx = ctx; - e.paren = p; + e.isparen = true; return e; } -#ifdef DEBUGSHUNT -# define DEBUGSHUNTDO(x) x -#else -# define DEBUGSHUNTDO(x) -#endif - /* 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 bool rotate_entfield_array_index_nodes(ast_expression **out) { - ast_array_index *index; + ast_array_index *index, *oldindex; ast_entfield *entfield; ast_value *field; @@ -482,12 +500,16 @@ static bool rotate_entfield_array_index_nodes(ast_expression **out) sub = index->index; entity = entfield->entity; - ast_delete(index); + oldindex = index; index = ast_array_index_new(ctx, (ast_expression*)field, sub); entfield = ast_entfield_new(ctx, entity, (ast_expression*)index); *out = (ast_expression*)entfield; + oldindex->array = NULL; + oldindex->index = NULL; + ast_delete(oldindex); + return true; } @@ -537,7 +559,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) return false; } - if (vec_last(sy->ops).paren) { + if (vec_last(sy->ops).isparen) { parseerror(parser, "unmatched parenthesis"); return false; } @@ -545,8 +567,6 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) op = &operators[vec_last(sy->ops).etype - 1]; ctx = vec_last(sy->ops).ctx; - DEBUGSHUNTDO(con_out("apply %s\n", op->op)); - if (vec_size(sy->out) < op->operands) { compile_error(ctx, "internal error: not enough operands: %i (operator %s (%i))", vec_size(sy->out), op->op, (int)op->id); @@ -565,7 +585,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) blocks[i] = sy->out[vec_size(sy->out)+i].block; asvalue[i] = (ast_value*)exprs[i]; - if (exprs[i]->expression.vtype == TYPE_NOEXPR && + if (exprs[i]->vtype == TYPE_NOEXPR && !(i != 0 && op->id == opid2('?',':')) && !(i == 1 && op->id == opid1('.'))) { @@ -583,11 +603,11 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) } #define NotSameType(T) \ - (exprs[0]->expression.vtype != exprs[1]->expression.vtype || \ - exprs[0]->expression.vtype != T) + (exprs[0]->vtype != exprs[1]->vtype || \ + exprs[0]->vtype != T) #define CanConstFold1(A) \ (ast_istype((A), ast_value) && ((ast_value*)(A))->hasvalue && (((ast_value*)(A))->cvq == CV_CONST) &&\ - (A)->expression.vtype != TYPE_FUNCTION) + (A)->vtype != TYPE_FUNCTION) #define CanConstFold(A, B) \ (CanConstFold1(A) && CanConstFold1(B)) #define ConstV(i) (asvalue[(i)]->constval.vvec) @@ -600,8 +620,8 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) return false; case opid1('.'): - if (exprs[0]->expression.vtype == TYPE_VECTOR && - exprs[1]->expression.vtype == TYPE_NOEXPR) + if (exprs[0]->vtype == TYPE_VECTOR && + exprs[1]->vtype == TYPE_NOEXPR) { if (exprs[1] == (ast_expression*)parser->const_vec[0]) out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL); @@ -614,14 +634,14 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) return false; } } - else if (exprs[0]->expression.vtype == TYPE_ENTITY) { - if (exprs[1]->expression.vtype != TYPE_FIELD) { + else if (exprs[0]->vtype == TYPE_ENTITY) { + if (exprs[1]->vtype != TYPE_FIELD) { compile_error(ast_ctx(exprs[1]), "type error: right hand of member-operand should be an entity-field"); return false; } out = (ast_expression*)ast_entfield_new(ctx, exprs[0], exprs[1]); } - else if (exprs[0]->expression.vtype == TYPE_VECTOR) { + else if (exprs[0]->vtype == TYPE_VECTOR) { compile_error(ast_ctx(exprs[1]), "vectors cannot be accessed this way"); return false; } @@ -632,15 +652,15 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) break; case opid1('['): - if (exprs[0]->expression.vtype != TYPE_ARRAY && - !(exprs[0]->expression.vtype == TYPE_FIELD && - exprs[0]->expression.next->expression.vtype == TYPE_ARRAY)) + if (exprs[0]->vtype != TYPE_ARRAY && + !(exprs[0]->vtype == TYPE_FIELD && + exprs[0]->next->vtype == TYPE_ARRAY)) { ast_type_to_string(exprs[0], ty1, sizeof(ty1)); compile_error(ast_ctx(exprs[0]), "cannot index value of type %s", ty1); return false; } - if (exprs[1]->expression.vtype != TYPE_FLOAT) { + if (exprs[1]->vtype != TYPE_FLOAT) { ast_type_to_string(exprs[0], ty1, sizeof(ty1)); compile_error(ast_ctx(exprs[1]), "index must be of type float, not %s", ty1); return false; @@ -650,7 +670,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) { #if 0 /* This is not broken in fteqcc anymore */ - if (opts.standard != COMPILER_GMQCC) { + if (OPTS_OPTION_U32(OPTION_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" @@ -661,6 +681,12 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) break; case opid1(','): + if (vec_size(sy->paren) && vec_last(sy->paren) == PAREN_FUNC) { + vec_push(sy->out, syexp(ctx, exprs[0])); + vec_push(sy->out, syexp(ctx, exprs[1])); + vec_last(sy->argc)++; + return true; + } if (blocks[0]) { if (!ast_block_add_expr(blocks[0], exprs[1])) return false; @@ -672,8 +698,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) return false; } } - if (!ast_block_set_type(blocks[0], exprs[1])) - return false; + ast_block_set_type(blocks[0], exprs[1]); vec_push(sy->out, syblock(ctx, blocks[0])); return true; @@ -682,7 +707,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) out = exprs[0]; break; case opid2('-','P'): - switch (exprs[0]->expression.vtype) { + switch (exprs[0]->vtype) { case TYPE_FLOAT: if (CanConstFold1(exprs[0])) out = (ast_expression*)parser_const_float(parser, -ConstF(0)); @@ -702,13 +727,13 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) break; default: compile_error(ctx, "invalid types used in expression: cannot negate type %s", - type_name[exprs[0]->expression.vtype]); + type_name[exprs[0]->vtype]); return false; } break; case opid2('!','P'): - switch (exprs[0]->expression.vtype) { + switch (exprs[0]->vtype) { case TYPE_FLOAT: if (CanConstFold1(exprs[0])) out = (ast_expression*)parser_const_float(parser, !ConstF(0)); @@ -744,21 +769,21 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) break; default: compile_error(ctx, "invalid types used in expression: cannot logically negate type %s", - type_name[exprs[0]->expression.vtype]); + type_name[exprs[0]->vtype]); return false; } break; case opid1('+'): - if (exprs[0]->expression.vtype != exprs[1]->expression.vtype || - (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) ) + if (exprs[0]->vtype != exprs[1]->vtype || + (exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT) ) { compile_error(ctx, "invalid types used in expression: cannot add type %s and %s", - type_name[exprs[0]->expression.vtype], - type_name[exprs[1]->expression.vtype]); + type_name[exprs[0]->vtype], + type_name[exprs[1]->vtype]); return false; } - switch (exprs[0]->expression.vtype) { + switch (exprs[0]->vtype) { case TYPE_FLOAT: if (CanConstFold(exprs[0], exprs[1])) { @@ -775,21 +800,21 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) break; default: compile_error(ctx, "invalid types used in expression: cannot add type %s and %s", - type_name[exprs[0]->expression.vtype], - type_name[exprs[1]->expression.vtype]); + type_name[exprs[0]->vtype], + type_name[exprs[1]->vtype]); return false; }; break; case opid1('-'): - if (exprs[0]->expression.vtype != exprs[1]->expression.vtype || - (exprs[0]->expression.vtype != TYPE_VECTOR && exprs[0]->expression.vtype != TYPE_FLOAT) ) + if (exprs[0]->vtype != exprs[1]->vtype || + (exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT) ) { compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s", - type_name[exprs[1]->expression.vtype], - type_name[exprs[0]->expression.vtype]); + type_name[exprs[1]->vtype], + type_name[exprs[0]->vtype]); return false; } - switch (exprs[0]->expression.vtype) { + switch (exprs[0]->vtype) { case TYPE_FLOAT: if (CanConstFold(exprs[0], exprs[1])) out = (ast_expression*)parser_const_float(parser, ConstF(0) - ConstF(1)); @@ -804,27 +829,27 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) break; default: compile_error(ctx, "invalid types used in expression: cannot subtract type %s from %s", - type_name[exprs[1]->expression.vtype], - type_name[exprs[0]->expression.vtype]); + type_name[exprs[1]->vtype], + type_name[exprs[0]->vtype]); return false; }; break; case opid1('*'): - if (exprs[0]->expression.vtype != exprs[1]->expression.vtype && - !(exprs[0]->expression.vtype == TYPE_VECTOR && - exprs[1]->expression.vtype == TYPE_FLOAT) && - !(exprs[1]->expression.vtype == TYPE_VECTOR && - exprs[0]->expression.vtype == TYPE_FLOAT) + if (exprs[0]->vtype != exprs[1]->vtype && + !(exprs[0]->vtype == TYPE_VECTOR && + exprs[1]->vtype == TYPE_FLOAT) && + !(exprs[1]->vtype == TYPE_VECTOR && + exprs[0]->vtype == TYPE_FLOAT) ) { compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s", - type_name[exprs[1]->expression.vtype], - type_name[exprs[0]->expression.vtype]); + type_name[exprs[1]->vtype], + type_name[exprs[0]->vtype]); return false; } - switch (exprs[0]->expression.vtype) { + switch (exprs[0]->vtype) { case TYPE_FLOAT: - if (exprs[1]->expression.vtype == TYPE_VECTOR) + if (exprs[1]->vtype == TYPE_VECTOR) { if (CanConstFold(exprs[0], exprs[1])) out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(1), ConstF(0))); @@ -840,7 +865,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) } break; case TYPE_VECTOR: - if (exprs[1]->expression.vtype == TYPE_FLOAT) + if (exprs[1]->vtype == TYPE_FLOAT) { if (CanConstFold(exprs[0], exprs[1])) out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), ConstF(1))); @@ -856,7 +881,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) if (!vec.y && !vec.z) { /* 'n 0 0' * v */ ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS]; out = (ast_expression*)ast_member_new(ctx, exprs[1], 0, NULL); - out->expression.node.keep = false; + out->node.keep = false; ((ast_member*)out)->rvalue = true; if (vec.x != 1) out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.x), out); @@ -864,7 +889,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) else if (!vec.x && !vec.z) { /* '0 n 0' * v */ ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS]; out = (ast_expression*)ast_member_new(ctx, exprs[1], 1, NULL); - out->expression.node.keep = false; + out->node.keep = false; ((ast_member*)out)->rvalue = true; if (vec.y != 1) out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.y), out); @@ -872,7 +897,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) else if (!vec.x && !vec.y) { /* '0 n 0' * v */ ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS]; out = (ast_expression*)ast_member_new(ctx, exprs[1], 2, NULL); - out->expression.node.keep = false; + out->node.keep = false; ((ast_member*)out)->rvalue = true; if (vec.z != 1) out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, (ast_expression*)parser_const_float(parser, vec.z), out); @@ -885,7 +910,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) if (!vec.y && !vec.z) { /* v * 'n 0 0' */ ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS]; out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL); - out->expression.node.keep = false; + out->node.keep = false; ((ast_member*)out)->rvalue = true; if (vec.x != 1) out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.x)); @@ -893,7 +918,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) else if (!vec.x && !vec.z) { /* v * '0 n 0' */ ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS]; out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL); - out->expression.node.keep = false; + out->node.keep = false; ((ast_member*)out)->rvalue = true; if (vec.y != 1) out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.y)); @@ -901,7 +926,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) else if (!vec.x && !vec.y) { /* v * '0 n 0' */ ++opts_optimizationcount[OPTIM_VECTOR_COMPONENTS]; out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL); - out->expression.node.keep = false; + out->node.keep = false; ((ast_member*)out)->rvalue = true; if (vec.z != 1) out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_F, out, (ast_expression*)parser_const_float(parser, vec.z)); @@ -915,33 +940,85 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) break; default: compile_error(ctx, "invalid types used in expression: cannot multiply types %s and %s", - type_name[exprs[1]->expression.vtype], - type_name[exprs[0]->expression.vtype]); + type_name[exprs[1]->vtype], + type_name[exprs[0]->vtype]); return false; }; break; case opid1('/'): - if (NotSameType(TYPE_FLOAT)) { - compile_error(ctx, "invalid types used in expression: cannot divide types %s and %s", - type_name[exprs[0]->expression.vtype], - type_name[exprs[1]->expression.vtype]); + if (exprs[1]->vtype != TYPE_FLOAT) { + ast_type_to_string(exprs[0], ty1, sizeof(ty1)); + ast_type_to_string(exprs[1], ty2, sizeof(ty2)); + compile_error(ctx, "invalid types used in expression: cannot divide tyeps %s and %s", ty1, ty2); return false; } - if (CanConstFold(exprs[0], exprs[1])) - out = (ast_expression*)parser_const_float(parser, ConstF(0) / ConstF(1)); + if (exprs[0]->vtype == TYPE_FLOAT) { + if (CanConstFold(exprs[0], exprs[1])) + out = (ast_expression*)parser_const_float(parser, ConstF(0) / ConstF(1)); + else + out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]); + } + else if (exprs[0]->vtype == TYPE_VECTOR) { + if (CanConstFold(exprs[0], exprs[1])) + out = (ast_expression*)parser_const_vector(parser, vec3_mulvf(ConstV(0), 1.0/ConstF(1))); + else { + if (CanConstFold1(exprs[1])) { + out = (ast_expression*)parser_const_float(parser, 1.0 / ConstF(1)); + } else { + out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, + (ast_expression*)parser_const_float_1(parser), + exprs[1]); + } + if (!out) { + compile_error(ctx, "internal error: failed to generate division"); + return false; + } + out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_VF, exprs[0], out); + } + } else - out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, exprs[0], exprs[1]); + { + ast_type_to_string(exprs[0], ty1, sizeof(ty1)); + ast_type_to_string(exprs[1], ty2, sizeof(ty2)); + compile_error(ctx, "invalid types used in expression: cannot divide tyeps %s and %s", ty1, ty2); + return false; + } break; + case opid1('%'): + if (NotSameType(TYPE_FLOAT)) { + compile_error(ctx, "invalid types used in expression: cannot perform modulo operation between types %s and %s", + type_name[exprs[0]->vtype], + type_name[exprs[1]->vtype]); + return false; + } + if (CanConstFold(exprs[0], exprs[1])) { + out = (ast_expression*)parser_const_float(parser, + (float)(((qcint)ConstF(0)) % ((qcint)ConstF(1)))); + } else { + /* generate a call to __builtin_mod */ + ast_expression *mod = intrin_func(parser, "mod"); + ast_call *call = NULL; + if (!mod) return false; /* can return null for missing floor */ + + call = ast_call_new(parser_ctx(parser), mod); + vec_push(call->params, exprs[0]); + vec_push(call->params, exprs[1]); + + out = (ast_expression*)call; + } + break; + case opid2('%','='): - compile_error(ctx, "qc does not have a modulo operator"); + compile_error(ctx, "%= is unimplemented"); return false; + case opid1('|'): case opid1('&'): if (NotSameType(TYPE_FLOAT)) { compile_error(ctx, "invalid types used in expression: cannot perform bit operations between types %s and %s", - type_name[exprs[0]->expression.vtype], - type_name[exprs[1]->expression.vtype]); + type_name[exprs[0]->vtype], + type_name[exprs[1]->vtype]); return false; } if (CanConstFold(exprs[0], exprs[1])) @@ -954,16 +1031,136 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) exprs[0], exprs[1]); break; case opid1('^'): - compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor via ^"); - return false; + /* + * Okay lets designate what the hell is an acceptable use + * of the ^ operator. In many vector processing units, XOR + * is allowed to be used on vectors, but only if the first + * operand is a vector, the second operand can be a float + * or vector. It's never legal for the first operand to be + * a float, and then the following operand to be a vector. + * Further more, the only time it is legal to do XOR otherwise + * is when both operand are floats. This nicely crafted if + * statement catches them all. + * + * In the event that the first operand is a vector, two + * possible situations can arise, thus, each element of + * vector A (operand A) is exclusive-ORed with the corresponding + * element of vector B (operand B), If B is scalar, the + * scalar value is first replicated for each element. + * + * The QCVM itself lacks a BITXOR instruction. Thus emulating + * the mathematics of it is required. The following equation + * is used: (LHS | RHS) & ~(LHS & RHS). However, due to the + * QCVM also lacking a BITNEG instruction, we need to emulate + * ~FOO with -1 - FOO, the whole process becoming this nicely + * crafted expression: (LHS | RHS) & (-1 - (LHS & RHS)). + * + * When A is not scalar, this process is repeated for all + * components of vector A with the value in operand B, + * only if operand B is scalar. When A is not scalar, and B + * is also not scalar, this process is repeated for all + * components of the vector A with the components of vector B. + * Finally when A is scalar and B is scalar, this process is + * simply used once for A and B being LHS and RHS respectfully. + * + * Yes the semantics are a bit strange (no pun intended). + * But then again BITXOR is strange itself, consdering it's + * commutative, assocative, and elements of the BITXOR operation + * are their own inverse. + */ + if ( !(exprs[0]->vtype == TYPE_FLOAT && exprs[1]->vtype == TYPE_FLOAT) && + !(exprs[0]->vtype == TYPE_VECTOR && exprs[1]->vtype == TYPE_FLOAT) && + !(exprs[0]->vtype == TYPE_VECTOR && exprs[1]->vtype == TYPE_VECTOR)) + { + compile_error(ctx, "invalid types used in expression: cannot perform bit operations between types %s and %s", + type_name[exprs[0]->vtype], + type_name[exprs[1]->vtype]); + return false; + } + + /* + * IF the first expression is float, the following will be too + * since scalar ^ vector is not allowed. + */ + if (exprs[0]->vtype == TYPE_FLOAT) { + if(CanConstFold(exprs[0], exprs[1])) { + out = (ast_expression*)parser_const_float(parser, (float)((qcint)(ConstF(0)) ^ ((qcint)(ConstF(1))))); + } else { + ast_binary *expr = ast_binary_new( + ctx, + INSTR_SUB_F, + (ast_expression*)parser_const_float_neg1(parser), + (ast_expression*)ast_binary_new( + ctx, + INSTR_BITAND, + exprs[0], + exprs[1] + ) + ); + expr->refs = AST_REF_NONE; + + out = (ast_expression*) + ast_binary_new( + ctx, + INSTR_BITAND, + (ast_expression*)ast_binary_new( + ctx, + INSTR_BITOR, + exprs[0], + exprs[1] + ), + (ast_expression*)expr + ); + } + } else { + /* + * The first is a vector: vector is allowed to xor with vector and + * with scalar, branch here for the second operand. + */ + if (exprs[1]->vtype == TYPE_VECTOR) { + /* + * Xor all the values of the vector components against the + * vectors components in question. + */ + if (CanConstFold(exprs[0], exprs[1])) { + out = (ast_expression*)parser_const_vector_f( + parser, + (float)(((qcint)(ConstV(0).x)) ^ ((qcint)(ConstV(1).x))), + (float)(((qcint)(ConstV(0).y)) ^ ((qcint)(ConstV(1).y))), + (float)(((qcint)(ConstV(0).z)) ^ ((qcint)(ConstV(1).z))) + ); + } else { + compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor for vector against vector"); + return false; + } + } else { + /* + * Xor all the values of the vector components against the + * scalar in question. + */ + if (CanConstFold(exprs[0], exprs[1])) { + out = (ast_expression*)parser_const_vector_f( + parser, + (float)(((qcint)(ConstV(0).x)) ^ ((qcint)(ConstF(1)))), + (float)(((qcint)(ConstV(0).y)) ^ ((qcint)(ConstF(1)))), + (float)(((qcint)(ConstV(0).z)) ^ ((qcint)(ConstF(1)))) + ); + } else { + compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor for vector against float"); + return false; + } + } + } + + break; case opid2('<','<'): case opid2('>','>'): if (CanConstFold(exprs[0], exprs[1]) && ! NotSameType(TYPE_FLOAT)) { if (op->id == opid2('<','<')) - out = (ast_expression*)parser_const_float(parser, (double)((int)(ConstF(0)) << (int)(ConstF(1)))); + out = (ast_expression*)parser_const_float(parser, (double)((unsigned int)(ConstF(0)) << (unsigned int)(ConstF(1)))); else - out = (ast_expression*)parser_const_float(parser, (double)((int)(ConstF(0)) >> (int)(ConstF(1)))); + out = (ast_expression*)parser_const_float(parser, (double)((unsigned int)(ConstF(0)) >> (unsigned int)(ConstF(1)))); break; } case opid3('<','<','='): @@ -997,7 +1194,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) return false; } for (i = 0; i < 2; ++i) { - if (OPTS_FLAG(CORRECT_LOGIC) && exprs[i]->expression.vtype == TYPE_VECTOR) { + if (OPTS_FLAG(CORRECT_LOGIC) && exprs[i]->vtype == TYPE_VECTOR) { out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_V, exprs[i]); if (!out) break; out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out); @@ -1008,7 +1205,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) break; } } - else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && exprs[i]->expression.vtype == TYPE_STRING) { + else if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && exprs[i]->vtype == TYPE_STRING) { out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_S, exprs[i]); if (!out) break; out = (ast_expression*)ast_unary_new(ctx, INSTR_NOT_F, out); @@ -1025,11 +1222,11 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) break; case opid2('?',':'): - if (vec_last(parser->pot) != POT_TERNARY2) { + if (vec_last(sy->paren) != PAREN_TERNARY2) { compile_error(ctx, "mismatched parenthesis/ternary"); return false; } - vec_pop(parser->pot); + vec_pop(sy->paren); if (!ast_compare_type(exprs[1], exprs[2])) { ast_type_to_string(exprs[1], ty1, sizeof(ty1)); ast_type_to_string(exprs[2], ty2, sizeof(ty2)); @@ -1042,6 +1239,69 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]); break; + case opid2('*', '*'): + if (NotSameType(TYPE_FLOAT)) { + ast_type_to_string(exprs[0], ty1, sizeof(ty1)); + ast_type_to_string(exprs[1], ty2, sizeof(ty2)); + compile_error(ctx, "invalid types used in exponentiation: %s and %s", + ty1, ty2); + + return false; + } + + if (CanConstFold(exprs[0], exprs[1])) { + out = (ast_expression*)parser_const_float(parser, powf(ConstF(0), ConstF(1))); + } else { + ast_call *gencall = ast_call_new(parser_ctx(parser), intrin_func(parser, "pow")); + vec_push(gencall->params, exprs[0]); + vec_push(gencall->params, exprs[1]); + out = (ast_expression*)gencall; + } + break; + + case opid3('<','=','>'): /* -1, 0, or 1 */ + if (NotSameType(TYPE_FLOAT)) { + ast_type_to_string(exprs[0], ty1, sizeof(ty1)); + ast_type_to_string(exprs[1], ty2, sizeof(ty2)); + compile_error(ctx, "invalid types used in comparision: %s and %s", + ty1, ty2); + + return false; + } + + if (CanConstFold(exprs[0], exprs[1])) { + if (ConstF(0) < ConstF(1)) + out = (ast_expression*)parser_const_float_neg1(parser); + else if (ConstF(0) == ConstF(1)) + out = (ast_expression*)parser_const_float_0(parser); + else if (ConstF(0) > ConstF(1)) + out = (ast_expression*)parser_const_float_1(parser); + } else { + ast_binary *eq = ast_binary_new(ctx, INSTR_EQ_F, exprs[0], exprs[1]); + + eq->refs = AST_REF_NONE; + + /* if (lt) { */ + out = (ast_expression*)ast_ternary_new(ctx, + (ast_expression*)ast_binary_new(ctx, INSTR_LT, exprs[0], exprs[1]), + /* out = -1 */ + (ast_expression*)parser_const_float_neg1(parser), + /* } else { */ + /* if (eq) { */ + (ast_expression*)ast_ternary_new(ctx, (ast_expression*)eq, + /* out = 0 */ + (ast_expression*)parser_const_float_0(parser), + /* } else { */ + /* out = 1 */ + (ast_expression*)parser_const_float_1(parser) + /* } */ + ) + /* } */ + ); + + } + break; + case opid1('>'): generated_op += 1; /* INSTR_GT */ case opid1('<'): @@ -1052,49 +1312,49 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) generated_op += INSTR_LE; if (NotSameType(TYPE_FLOAT)) { compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s", - type_name[exprs[0]->expression.vtype], - type_name[exprs[1]->expression.vtype]); + type_name[exprs[0]->vtype], + type_name[exprs[1]->vtype]); return false; } out = (ast_expression*)ast_binary_new(ctx, generated_op, exprs[0], exprs[1]); break; case opid2('!', '='): - if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) { + if (exprs[0]->vtype != exprs[1]->vtype) { compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s", - type_name[exprs[0]->expression.vtype], - type_name[exprs[1]->expression.vtype]); + type_name[exprs[0]->vtype], + type_name[exprs[1]->vtype]); return false; } - out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]); + out = (ast_expression*)ast_binary_new(ctx, type_ne_instr[exprs[0]->vtype], exprs[0], exprs[1]); break; case opid2('=', '='): - if (exprs[0]->expression.vtype != exprs[1]->expression.vtype) { + if (exprs[0]->vtype != exprs[1]->vtype) { compile_error(ctx, "invalid types used in expression: cannot perform comparison between types %s and %s", - type_name[exprs[0]->expression.vtype], - type_name[exprs[1]->expression.vtype]); + type_name[exprs[0]->vtype], + type_name[exprs[1]->vtype]); return false; } - out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->expression.vtype], exprs[0], exprs[1]); + out = (ast_expression*)ast_binary_new(ctx, type_eq_instr[exprs[0]->vtype], exprs[0], exprs[1]); break; case opid1('='): if (ast_istype(exprs[0], ast_entfield)) { ast_expression *field = ((ast_entfield*)exprs[0])->field; if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) && - exprs[0]->expression.vtype == TYPE_FIELD && - exprs[0]->expression.next->expression.vtype == TYPE_VECTOR) + exprs[0]->vtype == TYPE_FIELD && + exprs[0]->next->vtype == TYPE_VECTOR) { assignop = type_storep_instr[TYPE_VECTOR]; } else - assignop = type_storep_instr[exprs[0]->expression.vtype]; - if (assignop == AINSTR_END || !ast_compare_type(field->expression.next, exprs[1])) + assignop = type_storep_instr[exprs[0]->vtype]; + if (assignop == VINSTR_END || !ast_compare_type(field->next, exprs[1])) { - ast_type_to_string(field->expression.next, ty1, sizeof(ty1)); + ast_type_to_string(field->next, ty1, sizeof(ty1)); ast_type_to_string(exprs[1], ty2, sizeof(ty2)); if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) && - field->expression.next->expression.vtype == TYPE_FUNCTION && - exprs[1]->expression.vtype == TYPE_FUNCTION) + field->next->vtype == TYPE_FUNCTION && + exprs[1]->vtype == TYPE_FUNCTION) { (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES, "invalid types in assignment: cannot assign %s to %s", ty2, ty1); @@ -1106,16 +1366,16 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) else { if (OPTS_FLAG(ADJUST_VECTOR_FIELDS) && - exprs[0]->expression.vtype == TYPE_FIELD && - exprs[0]->expression.next->expression.vtype == TYPE_VECTOR) + exprs[0]->vtype == TYPE_FIELD && + exprs[0]->next->vtype == TYPE_VECTOR) { assignop = type_store_instr[TYPE_VECTOR]; } else { - assignop = type_store_instr[exprs[0]->expression.vtype]; + assignop = type_store_instr[exprs[0]->vtype]; } - if (assignop == AINSTR_END) { + if (assignop == VINSTR_END) { ast_type_to_string(exprs[0], ty1, sizeof(ty1)); ast_type_to_string(exprs[1], ty2, sizeof(ty2)); compile_error(ctx, "invalid types in assignment: cannot assign %s to %s", ty2, ty1); @@ -1125,8 +1385,8 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) ast_type_to_string(exprs[0], ty1, sizeof(ty1)); ast_type_to_string(exprs[1], ty2, sizeof(ty2)); if (OPTS_FLAG(ASSIGN_FUNCTION_TYPES) && - exprs[0]->expression.vtype == TYPE_FUNCTION && - exprs[1]->expression.vtype == TYPE_FUNCTION) + exprs[0]->vtype == TYPE_FUNCTION && + exprs[1]->vtype == TYPE_FUNCTION) { (void)!compile_warning(ctx, WARN_ASSIGN_FUNCTION_TYPES, "invalid types in assignment: cannot assign %s to %s", ty2, ty1); @@ -1143,7 +1403,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) case opid3('+','+','P'): case opid3('-','-','P'): /* prefix ++ */ - if (exprs[0]->expression.vtype != TYPE_FLOAT) { + if (exprs[0]->vtype != TYPE_FLOAT) { ast_type_to_string(exprs[0], ty1, sizeof(ty1)); compile_error(ast_ctx(exprs[0]), "invalid type for prefix increment: %s", ty1); return false; @@ -1168,7 +1428,7 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) case opid3('S','+','+'): case opid3('S','-','-'): /* prefix ++ */ - if (exprs[0]->expression.vtype != TYPE_FLOAT) { + if (exprs[0]->vtype != TYPE_FLOAT) { ast_type_to_string(exprs[0], ty1, sizeof(ty1)); compile_error(ast_ctx(exprs[0]), "invalid type for suffix increment: %s", ty1); return false; @@ -1200,8 +1460,8 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) 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) ) + if (exprs[0]->vtype != exprs[1]->vtype || + (exprs[0]->vtype != TYPE_VECTOR && exprs[0]->vtype != TYPE_FLOAT) ) { ast_type_to_string(exprs[0], ty1, sizeof(ty1)); ast_type_to_string(exprs[1], ty2, sizeof(ty2)); @@ -1213,10 +1473,10 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name); } if (ast_istype(exprs[0], ast_entfield)) - assignop = type_storep_instr[exprs[0]->expression.vtype]; + assignop = type_storep_instr[exprs[0]->vtype]; else - assignop = type_store_instr[exprs[0]->expression.vtype]; - switch (exprs[0]->expression.vtype) { + assignop = type_store_instr[exprs[0]->vtype]; + switch (exprs[0]->vtype) { case TYPE_FLOAT: out = (ast_expression*)ast_binstore_new(ctx, assignop, (op->id == opid2('+','=') ? INSTR_ADD_F : INSTR_SUB_F), @@ -1229,16 +1489,16 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) break; default: compile_error(ctx, "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]); + type_name[exprs[0]->vtype], + type_name[exprs[1]->vtype]); 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)) + if (exprs[1]->vtype != TYPE_FLOAT || + !(exprs[0]->vtype == TYPE_FLOAT || + exprs[0]->vtype == TYPE_VECTOR)) { ast_type_to_string(exprs[0], ty1, sizeof(ty1)); ast_type_to_string(exprs[1], ty2, sizeof(ty2)); @@ -1250,10 +1510,10 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name); } if (ast_istype(exprs[0], ast_entfield)) - assignop = type_storep_instr[exprs[0]->expression.vtype]; + assignop = type_storep_instr[exprs[0]->vtype]; else - assignop = type_store_instr[exprs[0]->expression.vtype]; - switch (exprs[0]->expression.vtype) { + assignop = type_store_instr[exprs[0]->vtype]; + switch (exprs[0]->vtype) { case TYPE_FLOAT: out = (ast_expression*)ast_binstore_new(ctx, assignop, (op->id == opid2('*','=') ? INSTR_MUL_F : INSTR_DIV_F), @@ -1265,19 +1525,25 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) 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) + if (CanConstFold1(exprs[1])) { + out = (ast_expression*)parser_const_float(parser, 1.0 / ConstF(1)); + } else { + out = (ast_expression*)ast_binary_new(ctx, INSTR_DIV_F, + (ast_expression*)parser_const_float_1(parser), + exprs[1]); + } + if (!out) { + compile_error(ctx, "internal error: failed to generate division"); return false; + } out = (ast_expression*)ast_binstore_new(ctx, assignop, INSTR_MUL_VF, exprs[0], out); } break; default: compile_error(ctx, "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]); + type_name[exprs[0]->vtype], + type_name[exprs[1]->vtype]); return false; }; break; @@ -1294,9 +1560,9 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) compile_error(ctx, "assignment to constant `%s`", asvalue[0]->name); } if (ast_istype(exprs[0], ast_entfield)) - assignop = type_storep_instr[exprs[0]->expression.vtype]; + assignop = type_storep_instr[exprs[0]->vtype]; else - assignop = type_store_instr[exprs[0]->expression.vtype]; + assignop = type_store_instr[exprs[0]->vtype]; out = (ast_expression*)ast_binstore_new(ctx, assignop, (op->id == opid2('&','=') ? INSTR_BITAND : INSTR_BITOR), exprs[0], exprs[1]); @@ -1314,9 +1580,9 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) return false; } if (ast_istype(exprs[0], ast_entfield)) - assignop = type_storep_instr[exprs[0]->expression.vtype]; + assignop = type_storep_instr[exprs[0]->vtype]; else - assignop = type_store_instr[exprs[0]->expression.vtype]; + assignop = type_store_instr[exprs[0]->vtype]; out = (ast_expression*)ast_binary_new(ctx, INSTR_BITAND, exprs[0], exprs[1]); if (!out) return false; @@ -1327,15 +1593,28 @@ static bool parser_sy_apply_operator(parser_t *parser, shunt *sy) asbinstore->keep_dest = true; out = (ast_expression*)asbinstore; break; + + case opid2('~', 'P'): + if (exprs[0]->vtype != TYPE_FLOAT) { + ast_type_to_string(exprs[0], ty1, sizeof(ty1)); + compile_error(ast_ctx(exprs[0]), "invalid type for bit not: %s", ty1); + return false; + } + + if(CanConstFold1(exprs[0])) + out = (ast_expression*)parser_const_float(parser, ~(qcint)ConstF(0)); + else + out = (ast_expression*) + ast_binary_new(ctx, INSTR_SUB_F, (ast_expression*)parser_const_float_neg1(parser), exprs[0]); + break; } #undef NotSameType if (!out) { - compile_error(ctx, "failed to apply operand %s", op->op); + compile_error(ctx, "failed to apply operator %s", op->op); return false; } - DEBUGSHUNTDO(con_out("applied %s\n", op->op)); vec_push(sy->out, syexp(ctx, out)); return true; } @@ -1348,20 +1627,27 @@ static bool parser_close_call(parser_t *parser, shunt *sy) ast_call *call; size_t fid; - size_t paramcount; + size_t paramcount, i; + fid = vec_last(sy->ops).off; vec_shrinkby(sy->ops, 1); - fid = sy->ops[vec_size(sy->ops)].off; /* out[fid] is the function * everything above is parameters... - * 0 params = nothing - * 1 params = ast_expression - * more = ast_block */ + if (!vec_size(sy->argc)) { + parseerror(parser, "internal error: no argument counter available"); + return false; + } + + paramcount = vec_last(sy->argc); + vec_pop(sy->argc); - if (vec_size(sy->out) < 1 || vec_size(sy->out) <= fid) { - parseerror(parser, "internal error: function call needs function and parameter list..."); + if (vec_size(sy->out) < fid) { + parseerror(parser, "internal error: broken function call%lu < %lu+%lu\n", + (unsigned long)vec_size(sy->out), + (unsigned long)fid, + (unsigned long)paramcount); return false; } @@ -1384,65 +1670,49 @@ static bool parser_close_call(parser_t *parser, shunt *sy) } call = ast_call_new(sy->ops[vec_size(sy->ops)].ctx, fun); - if (!call) { - parseerror(parser, "internal error: failed to create ast_call node"); + if (!call) return false; - } - if (fid+1 == vec_size(sy->out)) { - /* no arguments */ - paramcount = 0; - } else if (fid+2 == vec_size(sy->out)) { - ast_block *params; - vec_shrinkby(sy->out, 1); - params = sy->out[vec_size(sy->out)].block; - if (!params) { - /* 1 param */ - paramcount = 1; - vec_push(call->params, sy->out[vec_size(sy->out)].out); - } else { - paramcount = vec_size(params->exprs); - call->params = params->exprs; - params->exprs = NULL; - ast_delete(params); - } - if (parser->max_param_count < paramcount) - parser->max_param_count = paramcount; - (void)!ast_call_check_types(call); - } else { - parseerror(parser, "invalid function call"); + if (fid+1 < vec_size(sy->out)) + ++paramcount; + + if (fid+1 + paramcount != vec_size(sy->out)) { + parseerror(parser, "internal error: parameter count mismatch: (%lu+1+%lu), %lu", + (unsigned long)fid, (unsigned long)paramcount, (unsigned long)vec_size(sy->out)); return false; } + for (i = 0; i < paramcount; ++i) + vec_push(call->params, sy->out[fid+1 + i].out); + vec_shrinkby(sy->out, paramcount); + (void)!ast_call_check_types(call, parser->function->vtype->expression.varparam); + if (parser->max_param_count < paramcount) + parser->max_param_count = paramcount; + if (ast_istype(fun, ast_value)) { funval = (ast_value*)fun; - if ((fun->expression.flags & AST_FLAG_VARIADIC) && + if ((fun->flags & AST_FLAG_VARIADIC) && !(/*funval->cvq == CV_CONST && */ funval->hasvalue && funval->constval.vfunc->builtin)) { - size_t va_count; - if (paramcount < vec_size(fun->expression.params)) - va_count = 0; - else - va_count = paramcount - vec_size(fun->expression.params); - call->va_count = (ast_expression*)parser_const_float(parser, (double)va_count); + call->va_count = (ast_expression*)parser_const_float(parser, (double)paramcount); } } /* overwrite fid, the function, with a call */ sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call); - if (fun->expression.vtype != TYPE_FUNCTION) { - parseerror(parser, "not a function (%s)", type_name[fun->expression.vtype]); + if (fun->vtype != TYPE_FUNCTION) { + parseerror(parser, "not a function (%s)", type_name[fun->vtype]); return false; } - if (!fun->expression.next) { + if (!fun->next) { parseerror(parser, "could not determine function return type"); return false; } else { ast_value *fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL); - if (fun->expression.flags & AST_FLAG_DEPRECATED) { + if (fun->flags & AST_FLAG_DEPRECATED) { if (!fval) { return !parsewarning(parser, WARN_DEPRECATED, "call to function (which is marked deprecated)\n", @@ -1462,22 +1732,22 @@ static bool parser_close_call(parser_t *parser, shunt *sy) ast_ctx(fun).line); } - if (vec_size(fun->expression.params) != paramcount && - !((fun->expression.flags & AST_FLAG_VARIADIC) && - vec_size(fun->expression.params) < paramcount)) + if (vec_size(fun->params) != paramcount && + !((fun->flags & AST_FLAG_VARIADIC) && + vec_size(fun->params) < paramcount)) { - const char *fewmany = (vec_size(fun->expression.params) > paramcount) ? "few" : "many"; + const char *fewmany = (vec_size(fun->params) > paramcount) ? "few" : "many"; if (fval) return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT, "too %s parameters for call to %s: expected %i, got %i\n" " -> `%s` has been declared here: %s:%i", - fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount, + fewmany, fval->name, (int)vec_size(fun->params), (int)paramcount, fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line); else return !parsewarning(parser, WARN_INVALID_PARAMETER_COUNT, "too %s parameters for function call: expected %i, got %i\n" " -> it has been declared here: %s:%i", - fewmany, (int)vec_size(fun->expression.params), (int)paramcount, + fewmany, (int)vec_size(fun->params), (int)paramcount, ast_ctx(fun).file, (int)ast_ctx(fun).line); } } @@ -1485,49 +1755,48 @@ static bool parser_close_call(parser_t *parser, shunt *sy) return true; } -static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only) +static bool parser_close_paren(parser_t *parser, shunt *sy) { 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[vec_size(sy->ops)-1].paren == 1) { - parseerror(parser, "empty parenthesis expression"); - return false; - } - */ + 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[vec_size(sy->ops)-1].paren == SY_PAREN_EXPR) { - vec_shrinkby(sy->ops, 1); - return !functions_only; - } - if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_INDEX) { - if (functions_only) - return false; - /* pop off the parenthesis */ - vec_shrinkby(sy->ops, 1); - /* then apply the index operator */ - if (!parser_sy_apply_operator(parser, sy)) - return false; - return true; - } - if (sy->ops[vec_size(sy->ops)-1].paren == SY_PAREN_TERNARY) { - if (functions_only) - return false; - if (vec_last(parser->pot) != POT_TERNARY1) { - parseerror(parser, "mismatched colon in ternary expression (missing closing paren?)"); - return false; + if (vec_last(sy->ops).isparen) { + if (vec_last(sy->paren) == PAREN_FUNC) { + vec_pop(sy->paren); + if (!parser_close_call(parser, sy)) + return false; + break; } - vec_last(parser->pot) = POT_TERNARY2; - /* pop off the parenthesis */ - vec_shrinkby(sy->ops, 1); - return true; + if (vec_last(sy->paren) == PAREN_EXPR) { + vec_pop(sy->paren); + if (!vec_size(sy->out)) { + compile_error(vec_last(sy->ops).ctx, "empty paren expression"); + vec_shrinkby(sy->ops, 1); + return false; + } + vec_shrinkby(sy->ops, 1); + break; + } + if (vec_last(sy->paren) == PAREN_INDEX) { + vec_pop(sy->paren); + /* pop off the parenthesis */ + vec_shrinkby(sy->ops, 1); + /* then apply the index operator */ + if (!parser_sy_apply_operator(parser, sy)) + return false; + break; + } + if (vec_last(sy->paren) == PAREN_TERNARY1) { + vec_last(sy->paren) = PAREN_TERNARY2; + /* pop off the parenthesis */ + vec_shrinkby(sy->ops, 1); + break; + } + compile_error(vec_last(sy->ops).ctx, "invalid parenthesis"); + return false; } if (!parser_sy_apply_operator(parser, sy)) return false; @@ -1538,6 +1807,8 @@ static bool parser_close_paren(parser_t *parser, shunt *sy, bool functions_only) static void parser_reclassify_token(parser_t *parser) { size_t i; + if (parser->tok >= TOKEN_START) + return; for (i = 0; i < operator_count; ++i) { if (!strcmp(parser_tokval(parser), operators[i].op)) { parser->tok = TOKEN_OPERATOR; @@ -1551,8 +1822,12 @@ static ast_expression* parse_vararg_do(parser_t *parser) ast_expression *idx, *out; ast_value *typevar; ast_value *funtype = parser->function->vtype; + lex_ctx ctx = parser_ctx(parser); - lex_ctx ctx = parser_ctx(parser); + if (!parser->function->varargs) { + parseerror(parser, "function has no variable argument list"); + return NULL; + } if (!parser_next(parser) || parser->tok != '(') { parseerror(parser, "expected parameter index and type in parenthesis"); @@ -1568,9 +1843,14 @@ static ast_expression* parse_vararg_do(parser_t *parser) return NULL; if (parser->tok != ',') { - ast_unref(idx); - parseerror(parser, "expected comma after parameter index"); - return NULL; + if (parser->tok != ')') { + ast_unref(idx); + parseerror(parser, "expected comma after parameter index"); + return NULL; + } + /* vararg piping: ...(start) */ + out = (ast_expression*)ast_argpipe_new(ctx, idx); + return out; } if (!parser_next(parser) || (parser->tok != TOKEN_IDENT && parser->tok != TOKEN_TYPENAME)) { @@ -1592,22 +1872,6 @@ static ast_expression* parse_vararg_do(parser_t *parser) return NULL; } -#if 0 - if (!parser_next(parser)) { - ast_unref(idx); - ast_delete(typevar); - parseerror(parser, "parse error after vararg"); - return NULL; - } -#endif - - if (!parser->function->varargs) { - ast_unref(idx); - ast_delete(typevar); - parseerror(parser, "function has no variable argument list"); - return NULL; - } - if (funtype->expression.varparam && !ast_compare_type((ast_expression*)typevar, (ast_expression*)funtype->expression.varparam)) { @@ -1628,323 +1892,235 @@ static ast_expression* parse_vararg_do(parser_t *parser) static ast_expression* parse_vararg(parser_t *parser) { - bool old_noops = parser->lex->flags.noops; - enum parser_pot *old_pot = parser->pot; + bool old_noops = parser->lex->flags.noops; ast_expression *out; - parser->pot = NULL; parser->lex->flags.noops = true; out = parse_vararg_do(parser); - parser->pot = old_pot; parser->lex->flags.noops = old_noops; return out; } -static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels) -{ - ast_expression *expr = NULL; - shunt sy; - bool wantop = false; - /* only warn once about an assignment in a truth value because the current code - * would trigger twice on: if(a = b && ...), once for the if-truth-value, once for the && part - */ - bool warn_truthvalue = true; - - /* count the parens because an if starts with one, so the - * end of a condition is an unmatched closing paren - */ - int parens = 0; - int ternaries = 0; - - sy.out = NULL; - sy.ops = NULL; - - parser->lex->flags.noops = false; +/* not to be exposed */ +extern bool ftepp_predef_exists(const char *name); - parser_reclassify_token(parser); - - while (true) +static bool parse_sya_operand(parser_t *parser, shunt *sy, bool with_labels) +{ + if (OPTS_FLAG(TRANSLATABLE_STRINGS) && + parser->tok == TOKEN_IDENT && + !strcmp(parser_tokval(parser), "_")) { - if (OPTS_FLAG(TRANSLATABLE_STRINGS) && - parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "_")) - { - /* a translatable string */ - ast_value *val; + /* 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 NULL; - vec_push(sy.out, syexp(parser_ctx(parser), (ast_expression*)val)); - DEBUGSHUNTDO(con_out("push string\n")); + parser->lex->flags.noops = true; + if (!parser_next(parser) || parser->tok != '(') { + parseerror(parser, "use _(\"string\") to create a translatable string constant"); + return false; + } + parser->lex->flags.noops = false; + if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) { + parseerror(parser, "expected a constant string in translatable-string extension"); + return false; + } + val = parser_const_string(parser, parser_tokval(parser), true); + if (!val) + return false; + vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val)); - if (!parser_next(parser) || parser->tok != ')') { - parseerror(parser, "expected closing paren after translatable string"); - goto onerr; - } + if (!parser_next(parser) || parser->tok != ')') { + parseerror(parser, "expected closing paren after translatable string"); + return false; + } + return true; + } + else if (parser->tok == TOKEN_DOTS) + { + ast_expression *va; + if (!OPTS_FLAG(VARIADIC_ARGS)) { + parseerror(parser, "cannot access varargs (try -fvariadic-args)"); + return false; } - else if (parser->tok == TOKEN_DOTS) + va = parse_vararg(parser); + if (!va) + return false; + vec_push(sy->out, syexp(parser_ctx(parser), va)); + return true; + } + else if (parser->tok == TOKEN_FLOATCONST) { + ast_value *val; + val = parser_const_float(parser, (parser_token(parser)->constval.f)); + if (!val) + return false; + vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val)); + return true; + } + else if (parser->tok == TOKEN_INTCONST || parser->tok == TOKEN_CHARCONST) { + ast_value *val; + val = parser_const_float(parser, (double)(parser_token(parser)->constval.i)); + if (!val) + return false; + vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val)); + return true; + } + else if (parser->tok == TOKEN_STRINGCONST) { + ast_value *val; + val = parser_const_string(parser, parser_tokval(parser), false); + if (!val) + return false; + vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val)); + return true; + } + else if (parser->tok == TOKEN_VECTORCONST) { + ast_value *val; + val = parser_const_vector(parser, parser_token(parser)->constval.v); + if (!val) + return false; + vec_push(sy->out, syexp(parser_ctx(parser), (ast_expression*)val)); + return true; + } + else if (parser->tok == TOKEN_IDENT) + { + const char *ctoken = parser_tokval(parser); + ast_expression *prev = vec_size(sy->out) ? vec_last(sy->out).out : NULL; + ast_expression *var; + /* a_vector.{x,y,z} */ + if (!vec_size(sy->ops) || + !vec_last(sy->ops).etype || + operators[vec_last(sy->ops).etype-1].id != opid1('.') || + (prev >= intrinsic_debug_typestring && + prev <= intrinsic_debug_typestring)) { - ast_expression *va; - if (!OPTS_FLAG(VARIADIC_ARGS)) { - parseerror(parser, "cannot access varargs (try -fvariadic-args)"); - goto onerr; - } - if (wantop) { - parseerror(parser, "expected operator or end of statement"); - goto onerr; - } - wantop = true; - va = parse_vararg(parser); - if (!va) - goto onerr; - vec_push(sy.out, syexp(parser_ctx(parser), va)); - DEBUGSHUNTDO(con_out("push `...`\n")); + /* When adding more intrinsics, fix the above condition */ + prev = NULL; } - else if (parser->tok == TOKEN_IDENT) + if (prev && prev->vtype == TYPE_VECTOR && ctoken[0] >= 'x' && ctoken[0] <= 'z' && !ctoken[1]) { - const char *ctoken = parser_tokval(parser); - ast_expression *prev = vec_size(sy.out) ? vec_last(sy.out).out : NULL; - ast_expression *var; - if (wantop) { - parseerror(parser, "expected operator or end of statement"); - goto onerr; + var = (ast_expression*)parser->const_vec[ctoken[0]-'x']; + } else { + var = parser_find_var(parser, parser_tokval(parser)); + if (!var) + var = parser_find_field(parser, parser_tokval(parser)); + } + if (!var && with_labels) { + var = (ast_expression*)parser_find_label(parser, parser_tokval(parser)); + if (!with_labels) { + ast_label *lbl = ast_label_new(parser_ctx(parser), parser_tokval(parser), true); + var = (ast_expression*)lbl; + vec_push(parser->labels, lbl); } - wantop = true; - /* a_vector.{x,y,z} */ - if (!vec_size(sy.ops) || - !vec_last(sy.ops).etype || - operators[vec_last(sy.ops).etype-1].id != opid1('.') || - (prev >= intrinsic_debug_typestring && - prev <= intrinsic_debug_typestring)) - { - /* When adding more intrinsics, fix the above condition */ - prev = NULL; + } + if (!var && !strcmp(parser_tokval(parser), "__FUNC__")) + var = (ast_expression*)parser_const_string(parser, parser->function->name, false); + if (!var) { + /* intrinsics */ + if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) { + var = (ast_expression*)intrinsic_debug_typestring; } - if (prev && prev->expression.vtype == TYPE_VECTOR && ctoken[0] >= 'x' && ctoken[0] <= 'z' && !ctoken[1]) - { - var = (ast_expression*)parser->const_vec[ctoken[0]-'x']; - } else { - var = parser_find_var(parser, parser_tokval(parser)); - if (!var) - var = parser_find_field(parser, parser_tokval(parser)); - } - if (!var && with_labels) { - var = (ast_expression*)parser_find_label(parser, parser_tokval(parser)); - if (!with_labels) { - ast_label *lbl = ast_label_new(parser_ctx(parser), parser_tokval(parser), true); - var = (ast_expression*)lbl; - vec_push(parser->labels, lbl); - } + /* now we try for the real intrinsic hashtable. If the string + * begins with __builtin, we simply skip past it, otherwise we + * use the identifier as is. + */ + else if (!strncmp(parser_tokval(parser), "__builtin_", 10)) { + var = intrin_func(parser, parser_tokval(parser) + 10 /* skip __builtin */); } + if (!var) { - /* intrinsics */ - if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) { - var = (ast_expression*)intrinsic_debug_typestring; + char *correct = NULL; + size_t i; + + /* + * sometimes people use preprocessing predefs without enabling them + * i've done this thousands of times already myself. Lets check for + * it in the predef table. And diagnose it better :) + */ + if (!OPTS_FLAG(FTEPP_PREDEFS) && ftepp_predef_exists(parser_tokval(parser))) { + parseerror(parser, "unexpected identifier: %s (use -fftepp-predef to enable pre-defined macros)", parser_tokval(parser)); + return false; } - else - { - size_t i; - char *correct = NULL; - /* - * sometimes people use preprocessing predefs without enabling them - * i've done this thousands of times already myself. Lets check for - * it in the predef table. And diagnose it better :) - */ - if (!OPTS_FLAG(FTEPP_PREDEFS)) { - for (i = 0; i < sizeof(ftepp_predefs)/sizeof(*ftepp_predefs); i++) { - if (!strcmp(ftepp_predefs[i].name, parser_tokval(parser))) { - parseerror(parser, "unexpected ident: %s (use -fftepp-predef to enable pre-defined macros)", parser_tokval(parser)); - goto onerr; - } + /* + * TODO: determine the best score for the identifier: be it + * a variable, a field. + * + * We should also consider adding correction tables for + * other things as well. + */ + if (OPTS_OPTION_BOOL(OPTION_CORRECTION) && strlen(parser_tokval(parser)) <= 16) { + correction_t corr; + correct_init(&corr); + + for (i = 0; i < vec_size(parser->correct_variables); i++) { + correct = correct_str(&corr, parser->correct_variables[i], parser_tokval(parser)); + if (strcmp(correct, parser_tokval(parser))) { + break; + } else { + mem_d(correct); + correct = NULL; } } + correct_free(&corr); - /* - * TODO: determine the best score for the identifier: be it - * a variable, a field. - * - * We should also consider adding correction tables for - * other things as well. - */ - if (opts.correction) { - correction_t corr; - correct_init(&corr); - - for (i = 0; i < vec_size(parser->correct_variables); i++) { - correct = correct_str(&corr, parser->correct_variables[i], parser_tokval(parser)); - if (strcmp(correct, parser_tokval(parser))) { - break; - } else if (correct) { - mem_d(correct); - correct = NULL; - } - } - correct_free(&corr); - - if (correct) { - parseerror(parser, "unexpected ident: %s (did you mean %s?)", parser_tokval(parser), correct); - mem_d(correct); - goto onerr; - } + if (correct) { + parseerror(parser, "unexpected identifier: %s (did you mean %s?)", parser_tokval(parser), correct); + mem_d(correct); + return false; } - parseerror(parser, "unexpected ident: %s", parser_tokval(parser)); - goto onerr; - } - } - else - { - if (ast_istype(var, ast_value)) { - ((ast_value*)var)->uses++; - } - else if (ast_istype(var, ast_member)) { - ast_member *mem = (ast_member*)var; - if (ast_istype(mem->owner, ast_value)) - ((ast_value*)(mem->owner))->uses++; } + parseerror(parser, "unexpected identifier: %s", parser_tokval(parser)); + return false; } - 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; - if (wantop) { - parseerror(parser, "expected operator or end of statement, got constant"); - goto onerr; - } - wantop = true; - val = parser_const_float(parser, (parser_token(parser)->constval.f)); - if (!val) - return NULL; - 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 || parser->tok == TOKEN_CHARCONST) { - ast_value *val; - if (wantop) { - parseerror(parser, "expected operator or end of statement, got constant"); - goto onerr; - } - wantop = true; - val = parser_const_float(parser, (double)(parser_token(parser)->constval.i)); - if (!val) - return NULL; - 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; - if (wantop) { - parseerror(parser, "expected operator or end of statement, got constant"); - goto onerr; - } - wantop = true; - val = parser_const_string(parser, parser_tokval(parser), false); - if (!val) - return NULL; - 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; - if (wantop) { - parseerror(parser, "expected operator or end of statement, got constant"); - goto onerr; - } - wantop = true; - val = parser_const_vector(parser, parser_token(parser)->constval.v); - if (!val) - return NULL; - 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)); - } - else if (parser->tok == '(') { - parseerror(parser, "internal error: '(' should be classified as operator"); - goto onerr; } - else if (parser->tok == '[') { - parseerror(parser, "internal error: '[' should be classified as operator"); - goto onerr; - } - else if (parser->tok == ')') { - if (wantop) { - DEBUGSHUNTDO(con_out("do[op] )\n")); - --parens; - if (parens < 0) - break; - /* we do expect an operator next */ - /* closing an opening paren */ - if (!parser_close_paren(parser, &sy, false)) - goto onerr; - if (vec_last(parser->pot) != POT_PAREN) { - parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)"); - goto onerr; - } - vec_pop(parser->pot); - } else { - DEBUGSHUNTDO(con_out("do[nop] )\n")); - --parens; - if (parens < 0) - break; - /* allowed for function calls */ - if (!parser_close_paren(parser, &sy, true)) - goto onerr; - if (vec_last(parser->pot) != POT_PAREN) { - parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)"); - goto onerr; - } - vec_pop(parser->pot); + else + { + if (ast_istype(var, ast_value)) { + ((ast_value*)var)->uses++; } - wantop = true; - } - else if (parser->tok == ']') { - if (!wantop) - parseerror(parser, "operand expected"); - --parens; - if (parens < 0) - break; - if (!parser_close_paren(parser, &sy, false)) - goto onerr; - if (vec_last(parser->pot) != POT_PAREN) { - parseerror(parser, "mismatched parentheses (closing paren during ternary expression?)"); - goto onerr; + else if (ast_istype(var, ast_member)) { + ast_member *mem = (ast_member*)var; + if (ast_istype(mem->owner, ast_value)) + ((ast_value*)(mem->owner))->uses++; } - vec_pop(parser->pot); - wantop = true; } - else if (parser->tok == TOKEN_TYPENAME) { - parseerror(parser, "unexpected typename"); + vec_push(sy->out, syexp(parser_ctx(parser), var)); + return true; + } + parseerror(parser, "unexpected token `%s`", parser_tokval(parser)); + return false; +} + +static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels) +{ + ast_expression *expr = NULL; + shunt sy; + size_t i; + bool wantop = false; + /* only warn once about an assignment in a truth value because the current code + * would trigger twice on: if(a = b && ...), once for the if-truth-value, once for the && part + */ + bool warn_truthvalue = true; + + /* count the parens because an if starts with one, so the + * end of a condition is an unmatched closing paren + */ + int ternaries = 0; + + memset(&sy, 0, sizeof(sy)); + + parser->lex->flags.noops = false; + + parser_reclassify_token(parser); + + while (true) + { + if (parser->tok == TOKEN_TYPENAME) { + parseerror(parser, "unexpected typename `%s`", parser_tokval(parser)); goto onerr; } - else if (parser->tok != TOKEN_OPERATOR) { - if (wantop) { - parseerror(parser, "expected operator or end of statement"); - goto onerr; - } - break; - } - else + + if (parser->tok == TOKEN_OPERATOR) { /* classify the operator */ const oper_info *op; @@ -1959,14 +2135,14 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma } } if (o == operator_count) { - /* no operator found... must be the end of the statement */ - break; + compile_error(parser_ctx(parser), "unknown operator: %s", parser_tokval(parser)); + goto onerr; } /* found an operator */ op = &operators[o]; /* when declaring variables, a comma starts a new variable */ - if (op->id == opid1(',') && !parens && stopatcomma) { + if (op->id == opid1(',') && !vec_size(sy.paren) && stopatcomma) { /* fixup the token */ parser->tok = ','; break; @@ -1979,12 +2155,12 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma } if (op->id == opid1(',')) { - if (vec_size(parser->pot) && vec_last(parser->pot) == POT_TERNARY2) { + if (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) { (void)!parsewarning(parser, WARN_TERNARY_PRECEDENCE, "suggesting parenthesis around ternary expression"); } } - if (vec_size(sy.ops) && !vec_last(sy.ops).paren) + if (vec_size(sy.ops) && !vec_last(sy.ops).isparen) olast = &operators[vec_last(sy.ops).etype-1]; #define IsAssignOp(x) (\ @@ -2001,7 +2177,7 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma if (warn_truthvalue) { if ( (olast && IsAssignOp(olast->id) && (op->id == opid2('&','&') || op->id == opid2('|','|'))) || (olast && IsAssignOp(op->id) && (olast->id == opid2('&','&') || olast->id == opid2('|','|'))) || - (truthvalue && !vec_size(parser->pot) && IsAssignOp(op->id)) + (truthvalue && !vec_size(sy.paren) && IsAssignOp(op->id)) ) { (void)!parsewarning(parser, WARN_PARENTHESIS, "suggesting parenthesis around assignment used as truth value"); @@ -2015,7 +2191,7 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma { if (!parser_sy_apply_operator(parser, &sy)) goto onerr; - if (vec_size(sy.ops) && !vec_last(sy.ops).paren) + if (vec_size(sy.ops) && !vec_last(sy.ops).isparen) olast = &operators[vec_last(sy.ops).etype-1]; else olast = NULL; @@ -2024,14 +2200,13 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma if (op->id == opid1('(')) { if (wantop) { size_t sycount = vec_size(sy.out); - DEBUGSHUNTDO(con_out("push [op] (\n")); - ++parens; vec_push(parser->pot, POT_PAREN); /* we expected an operator, this is the function-call operator */ - vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_FUNC, sycount-1)); + vec_push(sy.paren, PAREN_FUNC); + vec_push(sy.ops, syparen(parser_ctx(parser), sycount-1)); + vec_push(sy.argc, 0); } else { - ++parens; vec_push(parser->pot, POT_PAREN); - vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_EXPR, 0)); - DEBUGSHUNTDO(con_out("push [nop] (\n")); + vec_push(sy.paren, PAREN_EXPR); + vec_push(sy.ops, syparen(parser_ctx(parser), 0)); } wantop = false; } else if (op->id == opid1('[')) { @@ -2039,42 +2214,123 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma parseerror(parser, "unexpected array subscript"); goto onerr; } - ++parens; vec_push(parser->pot, POT_PAREN); + vec_push(sy.paren, PAREN_INDEX); /* push both the operator and the paren, this makes life easier */ vec_push(sy.ops, syop(parser_ctx(parser), op)); - vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_INDEX, 0)); + vec_push(sy.ops, syparen(parser_ctx(parser), 0)); wantop = false; } else if (op->id == opid2('?',':')) { vec_push(sy.ops, syop(parser_ctx(parser), op)); - vec_push(sy.ops, syparen(parser_ctx(parser), SY_PAREN_TERNARY, 0)); + vec_push(sy.ops, syparen(parser_ctx(parser), 0)); wantop = false; ++ternaries; - vec_push(parser->pot, POT_TERNARY1); + vec_push(sy.paren, PAREN_TERNARY1); } else if (op->id == opid2(':','?')) { - if (!vec_size(parser->pot)) { + if (!vec_size(sy.paren)) { parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)"); goto onerr; } - if (vec_last(parser->pot) != POT_TERNARY1) { + if (vec_last(sy.paren) != PAREN_TERNARY1) { parseerror(parser, "unexpected colon outside ternary expression (missing parenthesis?)"); goto onerr; } - if (!parser_close_paren(parser, &sy, false)) + if (!parser_close_paren(parser, &sy)) goto onerr; vec_push(sy.ops, syop(parser_ctx(parser), op)); 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); } } + else if (parser->tok == ')') { + while (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) { + if (!parser_sy_apply_operator(parser, &sy)) + goto onerr; + } + if (!vec_size(sy.paren)) + break; + if (wantop) { + if (vec_last(sy.paren) == PAREN_TERNARY1) { + parseerror(parser, "mismatched parentheses (closing paren in ternary expression?)"); + goto onerr; + } + if (!parser_close_paren(parser, &sy)) + goto onerr; + } else { + /* must be a function call without parameters */ + if (vec_last(sy.paren) != PAREN_FUNC) { + parseerror(parser, "closing paren in invalid position"); + goto onerr; + } + if (!parser_close_paren(parser, &sy)) + goto onerr; + } + wantop = true; + } + else if (parser->tok == '(') { + parseerror(parser, "internal error: '(' should be classified as operator"); + goto onerr; + } + else if (parser->tok == '[') { + parseerror(parser, "internal error: '[' should be classified as operator"); + goto onerr; + } + else if (parser->tok == ']') { + while (vec_size(sy.paren) && vec_last(sy.paren) == PAREN_TERNARY2) { + if (!parser_sy_apply_operator(parser, &sy)) + goto onerr; + } + if (!vec_size(sy.paren)) + break; + if (vec_last(sy.paren) != PAREN_INDEX) { + parseerror(parser, "mismatched parentheses, unexpected ']'"); + goto onerr; + } + if (!parser_close_paren(parser, &sy)) + goto onerr; + wantop = true; + } + else if (!wantop) { + if (!parse_sya_operand(parser, &sy, with_labels)) + goto onerr; +#if 0 + if (vec_size(sy.paren) && vec_last(sy.ops).isparen && vec_last(sy.paren) == PAREN_FUNC) + vec_last(sy.argc)++; +#endif + wantop = true; + } + else { + /* in this case we might want to allow constant string concatenation */ + bool concatenated = false; + if (parser->tok == TOKEN_STRINGCONST && vec_size(sy.out)) { + ast_expression *lexpr = vec_last(sy.out).out; + if (ast_istype(lexpr, ast_value)) { + ast_value *last = (ast_value*)lexpr; + if (last->isimm == true && last->cvq == CV_CONST && + last->hasvalue && last->expression.vtype == TYPE_STRING) + { + char *newstr = NULL; + util_asprintf(&newstr, "%s%s", last->constval.vstring, parser_tokval(parser)); + vec_last(sy.out).out = (ast_expression*)parser_const_string(parser, newstr, false); + mem_d(newstr); + concatenated = true; + } + } + } + if (!concatenated) { + parseerror(parser, "expected operator or end of statement"); + goto onerr; + } + } + if (!parser_next(parser)) { goto onerr; } if (parser->tok == ';' || - (!parens && (parser->tok == ']' || parser->tok == ')' || parser->tok == '}'))) + ((!vec_size(sy.paren) || (vec_size(sy.paren) == 1 && vec_last(sy.paren) == PAREN_TERNARY2)) && + (parser->tok == ']' || parser->tok == ')' || parser->tok == '}'))) { break; } @@ -2086,25 +2342,31 @@ static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma } parser->lex->flags.noops = true; - if (!vec_size(sy.out)) { - parseerror(parser, "empty expression"); + if (vec_size(sy.out) != 1) { + parseerror(parser, "expression with not 1 but %lu output values...", (unsigned long) vec_size(sy.out)); expr = NULL; } else expr = sy.out[0].out; vec_free(sy.out); vec_free(sy.ops); - DEBUGSHUNTDO(con_out("shunt done\n")); - if (vec_size(parser->pot)) { - parseerror(parser, "internal error: vec_size(parser->pot) = %lu", (unsigned long)vec_size(parser->pot)); + if (vec_size(sy.paren)) { + parseerror(parser, "internal error: vec_size(sy.paren) = %lu", (unsigned long)vec_size(sy.paren)); return NULL; } - vec_free(parser->pot); + vec_free(sy.paren); + vec_free(sy.argc); return expr; onerr: parser->lex->flags.noops = true; + for (i = 0; i < vec_size(sy.out); ++i) { + if (sy.out[i].out) + ast_unref(sy.out[i].out); + } vec_free(sy.out); vec_free(sy.ops); + vec_free(sy.paren); + vec_free(sy.argc); return NULL; } @@ -2216,7 +2478,13 @@ static ast_expression* process_condition(parser_t *parser, ast_expression *cond, ast_unary *unary; ast_expression *prev; - if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->expression.vtype == TYPE_STRING) + if (cond->vtype == TYPE_VOID || cond->vtype >= TYPE_VARIANT) { + char ty[1024]; + ast_type_to_string(cond, ty, sizeof(ty)); + compile_error(ast_ctx(cond), "invalid type for if() condition: %s", ty); + } + + if (OPTS_FLAG(FALSE_EMPTY_STRINGS) && cond->vtype == TYPE_STRING) { prev = cond; cond = (ast_expression*)ast_unary_new(ast_ctx(cond), INSTR_NOT_S, cond); @@ -2227,7 +2495,7 @@ static ast_expression* process_condition(parser_t *parser, ast_expression *cond, } ifnot = !ifnot; } - else if (OPTS_FLAG(CORRECT_LOGIC) && cond->expression.vtype == TYPE_VECTOR) + else if (OPTS_FLAG(CORRECT_LOGIC) && cond->vtype == TYPE_VECTOR) { /* vector types need to be cast to true booleans */ ast_binary *bin = (ast_binary*)cond; @@ -2246,7 +2514,8 @@ static ast_expression* process_condition(parser_t *parser, ast_expression *cond, } unary = (ast_unary*)cond; - while (ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F) + /* ast_istype dereferences cond, should test here for safety */ + while (cond && ast_istype(cond, ast_unary) && unary->op == INSTR_NOT_F) { cond = unary->operand; unary->operand = NULL; @@ -2300,17 +2569,17 @@ static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out) /* closing paren */ if (parser->tok != ')') { parseerror(parser, "expected closing paren after 'if' condition"); - ast_delete(cond); + ast_unref(cond); return false; } /* parse into the 'then' branch */ if (!parser_next(parser)) { parseerror(parser, "expected statement for on-true branch of 'if'"); - ast_delete(cond); + ast_unref(cond); return false; } if (!parse_statement_or_block(parser, &ontrue)) { - ast_delete(cond); + ast_unref(cond); return false; } if (!ontrue) @@ -2321,12 +2590,12 @@ static bool parse_if(parser_t *parser, ast_block *block, ast_expression **out) if (!parser_next(parser)) { parseerror(parser, "expected on-false branch after 'else'"); ast_delete(ontrue); - ast_delete(cond); + ast_unref(cond); return false; } if (!parse_statement_or_block(parser, &onfalse)) { ast_delete(ontrue); - ast_delete(cond); + ast_unref(cond); return false; } } @@ -2423,23 +2692,23 @@ static bool parse_while_go(parser_t *parser, ast_block *block, ast_expression ** /* closing paren */ if (parser->tok != ')') { parseerror(parser, "expected closing paren after 'while' condition"); - ast_delete(cond); + ast_unref(cond); return false; } /* parse into the 'then' branch */ if (!parser_next(parser)) { parseerror(parser, "expected while-loop body"); - ast_delete(cond); + ast_unref(cond); return false; } if (!parse_statement_or_block(parser, &ontrue)) { - ast_delete(cond); + ast_unref(cond); return false; } cond = process_condition(parser, cond, &ifnot); if (!cond) { - ast_delete(ontrue); + ast_unref(ontrue); return false; } aloop = ast_loop_new(ctx, NULL, cond, ifnot, NULL, false, NULL, ontrue); @@ -2486,7 +2755,12 @@ static bool parse_dowhile(parser_t *parser, ast_block *block, ast_expression **o if (vec_last(parser->breaks) != label || vec_last(parser->continues) != label) { parseerror(parser, "internal error: label stack corrupted"); rv = false; - ast_delete(*out); + /* + * Test for NULL otherwise ast_delete dereferences null pointer + * and boom. + */ + if (*out) + ast_delete(*out); *out = NULL; } else { @@ -2539,21 +2813,21 @@ static bool parse_dowhile_go(parser_t *parser, ast_block *block, ast_expression if (parser->tok != ')') { parseerror(parser, "expected closing paren after 'while' condition"); ast_delete(ontrue); - ast_delete(cond); + ast_unref(cond); return false; } /* parse on */ if (!parser_next(parser) || parser->tok != ';') { parseerror(parser, "expected semicolon after condition"); ast_delete(ontrue); - ast_delete(cond); + ast_unref(cond); return false; } if (!parser_next(parser)) { parseerror(parser, "parse error"); ast_delete(ontrue); - ast_delete(cond); + ast_unref(cond); return false; } @@ -2626,7 +2900,6 @@ static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **ou ast_expression *initexpr, *cond, *increment, *ontrue; ast_value *typevar; - bool retval = true; bool ifnot = false; lex_ctx ctx = parser_ctx(parser); @@ -2650,7 +2923,7 @@ static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **ou if (typevar || parser->tok == TOKEN_TYPENAME) { #if 0 - if (opts.standard != COMPILER_GMQCC) { + if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) { if (parsewarning(parser, WARN_EXTENSIONS, "current standard does not allow variable declarations in for-loop initializers")) goto onerr; @@ -2695,11 +2968,12 @@ static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **ou /* parse the incrementor */ if (parser->tok != ')') { + lex_ctx condctx = parser_ctx(parser); increment = parse_expression_leave(parser, false, false, false); if (!increment) goto onerr; if (!ast_side_effects(increment)) { - if (genwarning(ast_ctx(increment), WARN_EFFECTLESS_STATEMENT, "statement has no effect")) + if (compile_warning(condctx, WARN_EFFECTLESS_STATEMENT, "statement has no effect")) goto onerr; } } @@ -2723,23 +2997,27 @@ static bool parse_for_go(parser_t *parser, ast_block *block, ast_expression **ou goto onerr; } aloop = ast_loop_new(ctx, initexpr, cond, ifnot, NULL, false, increment, ontrue); - *out = (ast_expression*)aloop; - - if (!parser_leaveblock(parser)) - retval = false; - return retval; + *out = (ast_expression*)aloop; + + if (!parser_leaveblock(parser)) { + ast_delete(aloop); + return false; + } + return true; onerr: - if (initexpr) ast_delete(initexpr); - if (cond) ast_delete(cond); - if (increment) ast_delete(increment); + if (initexpr) ast_unref(initexpr); + if (cond) ast_unref(cond); + if (increment) ast_unref(increment); (void)!parser_leaveblock(parser); return false; } static bool parse_return(parser_t *parser, ast_block *block, ast_expression **out) { - ast_expression *exp = NULL; - ast_return *ret = NULL; + ast_expression *exp = NULL; + ast_expression *var = NULL; + ast_return *ret = NULL; + ast_value *retval = parser->function->return_value; ast_value *expected = parser->function->vtype; lex_ctx ctx = parser_ctx(parser); @@ -2751,29 +3029,87 @@ static bool parse_return(parser_t *parser, ast_block *block, ast_expression **ou return false; } + /* return assignments */ + if (parser->tok == '=') { + if (!OPTS_FLAG(RETURN_ASSIGNMENTS)) { + parseerror(parser, "return assignments not activated, try using -freturn-assigments"); + return false; + } + + if (type_store_instr[expected->expression.next->vtype] == VINSTR_END) { + char ty1[1024]; + ast_type_to_string(expected->expression.next, ty1, sizeof(ty1)); + parseerror(parser, "invalid return type: `%s'", ty1); + return false; + } + + if (!parser_next(parser)) { + parseerror(parser, "expected return assignment expression"); + return false; + } + + if (!(exp = parse_expression_leave(parser, false, false, false))) + return false; + + /* prepare the return value */ + if (!retval) { + retval = ast_value_new(ctx, "#LOCAL_RETURN", TYPE_VOID); + ast_type_adopt(retval, expected->expression.next); + parser->function->return_value = retval; + } + + if (!ast_compare_type(exp, (ast_expression*)retval)) { + char ty1[1024], ty2[1024]; + ast_type_to_string(exp, ty1, sizeof(ty1)); + ast_type_to_string(&retval->expression, ty2, sizeof(ty2)); + parseerror(parser, "invalid type for return value: `%s', expected `%s'", ty1, ty2); + } + + /* store to 'return' local variable */ + var = (ast_expression*)ast_store_new( + ctx, + type_store_instr[expected->expression.next->vtype], + (ast_expression*)retval, exp); + + if (!var) { + ast_unref(exp); + return false; + } + + if (parser->tok != ';') + parseerror(parser, "missing semicolon after return assignment"); + else if (!parser_next(parser)) + parseerror(parser, "parse error after return assignment"); + + *out = var; + return true; + } + if (parser->tok != ';') { exp = parse_expression(parser, false, false); if (!exp) return false; - if (exp->expression.vtype != TYPE_NIL && - exp->expression.vtype != expected->expression.next->expression.vtype) + if (exp->vtype != TYPE_NIL && + exp->vtype != ((ast_expression*)expected)->next->vtype) { parseerror(parser, "return with invalid expression"); } ret = ast_return_new(ctx, exp); if (!ret) { - ast_delete(exp); + ast_unref(exp); return false; } } else { if (!parser_next(parser)) parseerror(parser, "parse error"); - if (expected->expression.next->expression.vtype != TYPE_VOID) { + + if (!retval && expected->expression.next->vtype != TYPE_VOID) + { (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value"); } - ret = ast_return_new(ctx, NULL); + ret = ast_return_new(ctx, (ast_expression*)retval); } *out = (ast_expression*)ret; return true; @@ -2878,8 +3214,44 @@ static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool * return false; } } + else if (!strcmp(parser_tokval(parser), "alias") && !(flags & AST_FLAG_ALIAS)) { + flags |= AST_FLAG_ALIAS; + *message = NULL; + + if (!parser_next(parser)) { + parseerror(parser, "parse error in attribute"); + goto argerr; + } + + if (parser->tok == '(') { + if (!parser_next(parser) || parser->tok != TOKEN_STRINGCONST) { + parseerror(parser, "`alias` attribute missing parameter"); + goto argerr; + } + + *message = util_strdup(parser_tokval(parser)); + + if (!parser_next(parser)) { + parseerror(parser, "parse error in attribute"); + goto argerr; + } + if (parser->tok != ')') { + parseerror(parser, "`alias` attribute expected `)` after parameter"); + goto argerr; + } + + if (!parser_next(parser)) { + parseerror(parser, "parse error in attribute"); + goto argerr; + } + } + if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) { + parseerror(parser, "`alias` attribute expected `]]`"); + goto argerr; + } + } else if (!strcmp(parser_tokval(parser), "deprecated") && !(flags & AST_FLAG_DEPRECATED)) { flags |= AST_FLAG_DEPRECATED; *message = NULL; @@ -3256,7 +3628,8 @@ static bool parse_goto(parser_t *parser, ast_expression **out) if (!(expression = parse_expression(parser, false, true)) || !(*out = parse_goto_computed(parser, &expression))) { parseerror(parser, "invalid goto expression"); - ast_unref(expression); + if(expression) + ast_unref(expression); return false; } @@ -3379,7 +3752,7 @@ static bool parse_statement(parser_t *parser, ast_block *block, ast_expression * parseerror(parser, "cannot declare a variable from here"); return false; } - if (opts.standard == COMPILER_QCC) { + if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) { if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable")) return false; } @@ -3446,7 +3819,7 @@ static bool parse_statement(parser_t *parser, ast_block *block, ast_expression * } else if (!strcmp(parser_tokval(parser), "for")) { - if (opts.standard == COMPILER_QCC) { + if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) { if (parsewarning(parser, WARN_EXTENSIONS, "for loops are not recognized in the original Quake C standard, to enable try an alternate standard --std=?")) return false; } @@ -3485,7 +3858,7 @@ static bool parse_statement(parser_t *parser, ast_block *block, ast_expression * } return parse_typedef(parser); } - parseerror(parser, "Unexpected keyword"); + parseerror(parser, "Unexpected keyword: `%s'", parser_tokval(parser)); return false; } else if (parser->tok == '{') @@ -3545,12 +3918,13 @@ static bool parse_statement(parser_t *parser, ast_block *block, ast_expression * } else { + lex_ctx ctx = parser_ctx(parser); ast_expression *exp = parse_expression(parser, false, false); if (!exp) return false; *out = exp; if (!ast_side_effects(exp)) { - if (genwarning(ast_ctx(exp), WARN_EFFECTLESS_STATEMENT, "statement has no effect")) + if (compile_warning(ctx, WARN_EFFECTLESS_STATEMENT, "statement has no effect")) return false; } return true; @@ -3559,6 +3933,8 @@ static bool parse_statement(parser_t *parser, ast_block *block, ast_expression * static bool parse_enum(parser_t *parser) { + bool flag = false; + bool reverse = false; qcfloat num = 0; ast_value **values = NULL; ast_value *var = NULL; @@ -3566,11 +3942,37 @@ static bool parse_enum(parser_t *parser) ast_expression *old; - if (!parser_next(parser) || parser->tok != '{') { - parseerror(parser, "expected `{` after `enum` keyword"); + if (!parser_next(parser) || (parser->tok != '{' && parser->tok != ':')) { + parseerror(parser, "expected `{` or `:` after `enum` keyword"); return false; } + /* enumeration attributes (can add more later) */ + if (parser->tok == ':') { + if (!parser_next(parser) || parser->tok != TOKEN_IDENT){ + parseerror(parser, "expected `flag` or `reverse` for enumeration attribute"); + return false; + } + + /* attributes? */ + if (!strcmp(parser_tokval(parser), "flag")) { + num = 1; + flag = true; + } + else if (!strcmp(parser_tokval(parser), "reverse")) { + reverse = true; + } + else { + parseerror(parser, "invalid attribute `%s` for enumeration", parser_tokval(parser)); + return false; + } + + if (!parser_next(parser) || parser->tok != '{') { + parseerror(parser, "expected `{` after enum attribute "); + return false; + } + } + while (true) { if (!parser_next(parser) || parser->tok != TOKEN_IDENT) { if (parser->tok == '}') { @@ -3594,8 +3996,9 @@ static bool parse_enum(parser_t *parser) vec_push(values, var); var->cvq = CV_CONST; var->hasvalue = true; - var->constval.vfloat = num++; + /* for flagged enumerations increment in POTs of TWO */ + var->constval.vfloat = (flag) ? (num *= 2) : (num ++); parser_addglobal(parser, var->name, (ast_expression*)var); if (!parser_next(parser)) { @@ -3634,6 +4037,13 @@ static bool parse_enum(parser_t *parser) } } + /* patch them all (for reversed attribute) */ + if (reverse) { + size_t i; + for (i = 0; i < vec_size(values); i++) + values[i]->constval.vfloat = vec_size(values) - i - 1; + } + if (parser->tok != '}') { parseerror(parser, "internal error: breaking without `}`"); goto onerror; @@ -3765,6 +4175,11 @@ static bool parse_function_body(parser_t *parser, ast_value *var) has_frame_think = false; old = parser->function; + if (var->expression.flags & AST_FLAG_ALIAS) { + parseerror(parser, "function aliases cannot have bodies"); + return false; + } + if (vec_size(parser->gotos) || vec_size(parser->labels)) { parseerror(parser, "gotos/labels leaking"); return false; @@ -3772,7 +4187,7 @@ static bool parse_function_body(parser_t *parser, ast_value *var) if (!OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) { if (parsewarning(parser, WARN_VARIADIC_FUNCTION, - "variadic function with implementation will not be able to access additional parameters")) + "variadic function with implementation will not be able to access additional parameters (try -fvariadic-args)")) { return false; } @@ -3834,14 +4249,15 @@ 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 */ ast_value *thinkfunc; - ast_expression *functype = fld_think->expression.next; + ast_expression *functype = fld_think->next; - thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype); - if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) { + thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->vtype); + if (!thinkfunc) { /* || !ast_type_adopt(thinkfunc, functype)*/ ast_unref(framenum); parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser)); return false; } + ast_type_adopt(thinkfunc, functype); if (!parser_next(parser)) { ast_unref(framenum); @@ -3967,6 +4383,20 @@ static bool parse_function_body(parser_t *parser, ast_value *var) } } + if (var->hasvalue) { + parseerror(parser, "function `%s` declared with multiple bodies", var->name); + ast_block_delete(block); + goto enderr; + } + + func = ast_function_new(ast_ctx(var), var->name, var); + if (!func) { + parseerror(parser, "failed to allocate function for `%s`", var->name); + ast_block_delete(block); + goto enderr; + } + vec_push(parser->functions, func); + parser_enterblock(parser); for (parami = 0; parami < vec_size(var->expression.params); ++parami) { @@ -3976,14 +4406,14 @@ static bool parse_function_body(parser_t *parser, ast_value *var) if (param->expression.vtype != TYPE_VECTOR && (param->expression.vtype != TYPE_FIELD || - param->expression.next->expression.vtype != TYPE_VECTOR)) + param->expression.next->vtype != TYPE_VECTOR)) { continue; } if (!create_vector_members(param, me)) { ast_block_delete(block); - return false; + goto enderrfn; } for (e = 0; e < 3; ++e) { @@ -3992,14 +4422,6 @@ static bool parse_function_body(parser_t *parser, ast_value *var) } } - func = ast_function_new(ast_ctx(var), var->name, var); - if (!func) { - parseerror(parser, "failed to allocate function for `%s`", var->name); - ast_block_delete(block); - goto enderr; - } - vec_push(parser->functions, func); - if (var->argcounter) { ast_value *argc = ast_value_new(ast_ctx(var), var->argcounter, TYPE_FLOAT); parser_addlocal(parser, argc->name, (ast_expression*)argc); @@ -4012,19 +4434,21 @@ static bool parse_function_body(parser_t *parser, ast_value *var) varargs->expression.flags |= AST_FLAG_IS_VARARG; varargs->expression.next = (ast_expression*)ast_value_new(ast_ctx(var), NULL, TYPE_VECTOR); varargs->expression.count = 0; - snprintf(name, sizeof(name), "%s##va##SET", var->name); + util_snprintf(name, sizeof(name), "%s##va##SET", var->name); if (!parser_create_array_setter_proto(parser, varargs, name)) { ast_delete(varargs); ast_block_delete(block); - goto enderr; + goto enderrfn; } - snprintf(name, sizeof(name), "%s##va##GET", var->name); + util_snprintf(name, sizeof(name), "%s##va##GET", var->name); if (!parser_create_array_getter_proto(parser, varargs, varargs->expression.next, name)) { ast_delete(varargs); ast_block_delete(block); - goto enderr; + goto enderrfn; } func->varargs = varargs; + + func->fixedparams = parser_const_float(parser, vec_size(var->expression.params)); } parser->function = func; @@ -4035,6 +4459,7 @@ static bool parse_function_body(parser_t *parser, ast_value *var) vec_push(func->blocks, block); + parser->function = old; if (!parser_leaveblock(parser)) retval = false; @@ -4045,17 +4470,17 @@ static bool parse_function_body(parser_t *parser, ast_value *var) if (parser->tok == ';') return parser_next(parser); - else if (opts.standard == COMPILER_QCC) + else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)"); return retval; enderrfn: + (void)!parser_leaveblock(parser); vec_pop(parser->functions); ast_function_delete(func); var->constval.vfunc = NULL; enderr: - (void)!parser_leaveblock(parser); parser->function = old; return false; } @@ -4112,7 +4537,7 @@ static ast_expression *array_setter_node(parser_t *parser, ast_value *array, ast ast_store *st; int assignop = type_store_instr[value->expression.vtype]; - if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR) + if (value->expression.vtype == TYPE_FIELD && value->expression.next->vtype == TYPE_VECTOR) assignop = INSTR_STORE_V; subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from)); @@ -4178,7 +4603,7 @@ static ast_expression *array_field_setter_node( ast_store *st; int assignop = type_storep_instr[value->expression.vtype]; - if (value->expression.vtype == TYPE_FIELD && value->expression.next->expression.vtype == TYPE_VECTOR) + if (value->expression.vtype == TYPE_FIELD && value->expression.next->vtype == TYPE_VECTOR) assignop = INSTR_STOREP_V; subscript = ast_array_index_new(ctx, (ast_expression*)array, (ast_expression*)parser_const_float(parser, from)); @@ -4488,6 +4913,7 @@ static ast_value *parse_parameter_list(parser_t *parser, ast_value *var) /* for the sake of less code we parse-in in this function */ if (!parser_next(parser)) { + ast_delete(var); parseerror(parser, "expected parameter list"); return NULL; } @@ -4561,7 +4987,7 @@ static ast_value *parse_parameter_list(parser_t *parser, ast_value *var) vec_free(params); /* sanity check */ - if (vec_size(params) > 8 && opts.standard == COMPILER_QCC) + if (vec_size(params) > 8 && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) (void)!parsewarning(parser, WARN_EXTENSIONS, "more than 8 parameters are not supported by this standard"); /* parse-out */ @@ -4587,6 +5013,8 @@ static ast_value *parse_parameter_list(parser_t *parser, ast_value *var) on_error: if (argcounter) mem_d(argcounter); + if (varparam) + ast_delete(varparam); ast_delete(var); for (i = 0; i < vec_size(params); ++i) ast_delete(params[i]); @@ -4608,32 +5036,44 @@ static ast_value *parse_arraysize(parser_t *parser, ast_value *var) return NULL; } - cexp = parse_expression_leave(parser, true, false, false); + if (parser->tok != ']') { + cexp = parse_expression_leave(parser, true, false, false); - if (!cexp || !ast_istype(cexp, ast_value)) { - if (cexp) - ast_unref(cexp); - ast_delete(var); - parseerror(parser, "expected array-size as constant positive integer"); - return NULL; + if (!cexp || !ast_istype(cexp, ast_value)) { + if (cexp) + ast_unref(cexp); + ast_delete(var); + parseerror(parser, "expected array-size as constant positive integer"); + return NULL; + } + cval = (ast_value*)cexp; + } + else { + cexp = NULL; + cval = NULL; } - cval = (ast_value*)cexp; tmp = ast_value_new(ctx, "", TYPE_ARRAY); tmp->expression.next = (ast_expression*)var; var = tmp; - if (cval->expression.vtype == TYPE_INTEGER) - tmp->expression.count = cval->constval.vint; - else if (cval->expression.vtype == TYPE_FLOAT) - tmp->expression.count = cval->constval.vfloat; - else { + if (cval) { + if (cval->expression.vtype == TYPE_INTEGER) + tmp->expression.count = cval->constval.vint; + else if (cval->expression.vtype == TYPE_FLOAT) + tmp->expression.count = cval->constval.vfloat; + else { + ast_unref(cexp); + ast_delete(var); + parseerror(parser, "array-size must be a positive integer constant"); + return NULL; + } + ast_unref(cexp); - ast_delete(var); - parseerror(parser, "array-size must be a positive integer constant"); - return NULL; + } else { + var->expression.count = -1; + var->expression.flags |= AST_FLAG_ARRAY_INIT; } - ast_unref(cexp); if (parser->tok != ']') { ast_delete(var); @@ -4753,6 +5193,7 @@ static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_va /* parse on */ if (!parser_next(parser)) { ast_delete(var); + mem_d(name); parseerror(parser, "error after variable or field declaration"); return NULL; } @@ -4762,8 +5203,10 @@ static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_va if (parser->tok == '[') { wasarray = true; var = parse_arraysize(parser, var); - if (!var) + if (!var) { + if (name) mem_d(name); return NULL; + } } /* This is the point where we can turn it into a field */ @@ -4775,16 +5218,14 @@ static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_va } /* now there may be function parens again */ - if (parser->tok == '(' && opts.standard == COMPILER_QCC) + if (parser->tok == '(' && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) parseerror(parser, "C-style function syntax is not allowed in -std=qcc"); if (parser->tok == '(' && wasarray) parseerror(parser, "arrays as part of a return type is not supported"); while (parser->tok == '(') { var = parse_parameter_list(parser, var); if (!var) { - if (name) - mem_d((void*)name); - ast_delete(var); + if (name) mem_d(name); return NULL; } } @@ -4793,11 +5234,12 @@ static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_va if (name) { if (!ast_value_set_name(var, name)) { ast_delete(var); + mem_d(name); parseerror(parser, "internal error: failed to set name"); return NULL; } /* free the name, ast_value_set_name duplicates */ - mem_d((void*)name); + mem_d(name); } return var; @@ -4881,6 +5323,75 @@ static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, cons return true; } +static bool create_array_accessors(parser_t *parser, ast_value *var) +{ + char name[1024]; + util_snprintf(name, sizeof(name), "%s##SET", var->name); + if (!parser_create_array_setter(parser, var, name)) + return false; + util_snprintf(name, sizeof(name), "%s##GET", var->name); + if (!parser_create_array_getter(parser, var, var->expression.next, name)) + return false; + return true; +} + +static bool parse_array(parser_t *parser, ast_value *array) +{ + size_t i; + if (array->initlist) { + parseerror(parser, "array already initialized elsewhere"); + return false; + } + if (!parser_next(parser)) { + parseerror(parser, "parse error in array initializer"); + return false; + } + i = 0; + while (parser->tok != '}') { + ast_value *v = (ast_value*)parse_expression_leave(parser, true, false, false); + if (!v) + return false; + if (!ast_istype(v, ast_value) || !v->hasvalue || v->cvq != CV_CONST) { + ast_unref(v); + parseerror(parser, "initializing element must be a compile time constant"); + return false; + } + vec_push(array->initlist, v->constval); + if (v->expression.vtype == TYPE_STRING) { + array->initlist[i].vstring = util_strdupe(array->initlist[i].vstring); + ++i; + } + ast_unref(v); + if (parser->tok == '}') + break; + if (parser->tok != ',' || !parser_next(parser)) { + parseerror(parser, "expected comma or '}' in element list"); + return false; + } + } + if (!parser_next(parser) || parser->tok != ';') { + parseerror(parser, "expected semicolon after initializer, got %s"); + return false; + } + /* + if (!parser_next(parser)) { + parseerror(parser, "parse error after initializer"); + return false; + } + */ + + if (array->expression.flags & AST_FLAG_ARRAY_INIT) { + if (array->expression.count != (size_t)-1) { + parseerror(parser, "array `%s' has already been initialized with %u elements", + array->name, (unsigned)array->expression.count); + } + array->expression.count = vec_size(array->initlist); + if (!create_array_accessors(parser, array)) + return false; + } + return true; +} + static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int qualifier, ast_value *cached_typedef, bool noref, bool is_static, uint32_t qflags, char *vstring) { ast_value *var; @@ -4896,7 +5407,7 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield bool cleanvar = true; bool wasarray = false; - ast_member *me[3]; + ast_member *me[3] = { NULL, NULL, NULL }; if (!localblock && is_static) parseerror(parser, "`static` qualifier is not supported in global scope"); @@ -4915,7 +5426,7 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield /* Part 0: finish the type */ if (parser->tok == '(') { - if (opts.standard == COMPILER_QCC) + if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) parseerror(parser, "C-style function syntax is not allowed in -std=qcc"); var = parse_parameter_list(parser, var); if (!var) { @@ -4938,7 +5449,7 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield } /* for functions returning functions */ while (parser->tok == '(') { - if (opts.standard == COMPILER_QCC) + if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) parseerror(parser, "C-style function syntax is not allowed in -std=qcc"); var = parse_parameter_list(parser, var); if (!var) { @@ -4949,7 +5460,13 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield var->cvq = qualifier; var->expression.flags |= qflags; - if (var->expression.flags & AST_FLAG_DEPRECATED) + + /* + * store the vstring back to var for alias and + * deprecation messages. + */ + if (var->expression.flags & AST_FLAG_DEPRECATED || + var->expression.flags & AST_FLAG_ALIAS) var->desc = vstring; /* Part 1: @@ -5008,7 +5525,7 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield goto cleanup; */ } - if ((opts.standard == COMPILER_QCC || opts.standard == COMPILER_FTEQCC) && + if ((OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC || OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_FTEQCC) && (old = parser_find_global(parser, var->name))) { parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc"); @@ -5022,7 +5539,7 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield { /* deal with other globals */ old = parser_find_global(parser, var->name); - if (old && var->expression.vtype == TYPE_FUNCTION && old->expression.vtype == TYPE_FUNCTION) + if (old && var->expression.vtype == TYPE_FUNCTION && old->vtype == TYPE_FUNCTION) { /* This is a function which had a prototype */ if (!ast_istype(old, ast_value)) { @@ -5044,7 +5561,7 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield ast_value_set_name(proto->expression.params[i], var->expression.params[i]->name); if (!parser_check_qualifiers(parser, var, proto)) { retval = false; - if (proto->desc) + if (proto->desc) mem_d(proto->desc); proto = NULL; goto cleanup; @@ -5080,7 +5597,7 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield ast_delete(var); var = proto; } - if (opts.standard == COMPILER_QCC && + if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC && (old = parser_find_field(parser, var->name))) { parseerror(parser, "cannot declare a field and a global of the same name with -std=qcc"); @@ -5111,7 +5628,7 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield retval = false; goto cleanup; } - if (opts.standard != COMPILER_GMQCC) { + if (OPTS_OPTION_U32(OPTION_STANDARD) != COMPILER_GMQCC) { ast_delete(var); var = NULL; goto skipvar; @@ -5130,7 +5647,7 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield if (var->expression.vtype == TYPE_VECTOR) isvector = true; else if (var->expression.vtype == TYPE_FIELD && - var->expression.next->expression.vtype == TYPE_VECTOR) + var->expression.next->vtype == TYPE_VECTOR) isvector = true; if (isvector) { @@ -5154,10 +5671,85 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield } } else { - parser_addglobal(parser, var->name, (ast_expression*)var); - if (isvector) { - for (i = 0; i < 3; ++i) { - parser_addglobal(parser, me[i]->name, (ast_expression*)me[i]); + if (!(var->expression.flags & AST_FLAG_ALIAS)) { + parser_addglobal(parser, var->name, (ast_expression*)var); + if (isvector) { + for (i = 0; i < 3; ++i) { + parser_addglobal(parser, me[i]->name, (ast_expression*)me[i]); + } + } + } else { + ast_expression *find = parser_find_global(parser, var->desc); + + if (!find) { + compile_error(parser_ctx(parser), "undeclared variable `%s` for alias `%s`", var->desc, var->name); + return false; + } + + if (var->expression.vtype != find->vtype) { + char ty1[1024]; + char ty2[1024]; + + ast_type_to_string(find, ty1, sizeof(ty1)); + ast_type_to_string((ast_expression*)var, ty2, sizeof(ty2)); + + compile_error(parser_ctx(parser), "incompatible types `%s` and `%s` for alias `%s`", + ty1, ty2, var->name + ); + return false; + } + + /* + * add alias to aliases table and to corrector + * so corrections can apply for aliases as well. + */ + util_htset(parser->aliases, var->name, find); + + /* + * add to corrector so corrections can work + * even for aliases too. + */ + correct_add ( + vec_last(parser->correct_variables), + &vec_last(parser->correct_variables_score), + var->name + ); + + /* generate aliases for vector components */ + if (isvector) { + char *buffer[3]; + + util_asprintf(&buffer[0], "%s_x", var->desc); + util_asprintf(&buffer[1], "%s_y", var->desc); + util_asprintf(&buffer[2], "%s_z", var->desc); + + util_htset(parser->aliases, me[0]->name, parser_find_global(parser, buffer[0])); + util_htset(parser->aliases, me[1]->name, parser_find_global(parser, buffer[1])); + util_htset(parser->aliases, me[2]->name, parser_find_global(parser, buffer[2])); + + mem_d(buffer[0]); + mem_d(buffer[1]); + mem_d(buffer[2]); + + /* + * add to corrector so corrections can work + * even for aliases too. + */ + correct_add ( + vec_last(parser->correct_variables), + &vec_last(parser->correct_variables_score), + me[0]->name + ); + correct_add ( + vec_last(parser->correct_variables), + &vec_last(parser->correct_variables_score), + me[1]->name + ); + correct_add ( + vec_last(parser->correct_variables), + &vec_last(parser->correct_variables_score), + me[2]->name + ); } } } @@ -5233,17 +5825,14 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield * deal with arrays */ if (var->expression.vtype == TYPE_ARRAY) { - char name[1024]; - snprintf(name, sizeof(name), "%s##SET", var->name); - if (!parser_create_array_setter(parser, var, name)) - goto cleanup; - snprintf(name, sizeof(name), "%s##GET", var->name); - if (!parser_create_array_getter(parser, var, var->expression.next, name)) - goto cleanup; + if (var->expression.count != (size_t)-1) { + if (!create_array_accessors(parser, var)) + goto cleanup; + } } else if (!localblock && !nofields && var->expression.vtype == TYPE_FIELD && - var->expression.next->expression.vtype == TYPE_ARRAY) + var->expression.next->vtype == TYPE_ARRAY) { char name[1024]; ast_expression *telem; @@ -5255,14 +5844,14 @@ static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofield goto cleanup; } - snprintf(name, sizeof(name), "%s##SETF", var->name); + util_snprintf(name, sizeof(name), "%s##SETF", var->name); if (!parser_create_array_field_setter(parser, array, name)) goto cleanup; telem = ast_type_copy(ast_ctx(var), array->expression.next); tfield = ast_value_new(ast_ctx(var), "<.type>", TYPE_FIELD); tfield->expression.next = telem; - snprintf(name, sizeof(name), "%s##GETFP", var->name); + util_snprintf(name, sizeof(name), "%s##GETFP", var->name); if (!parser_create_array_getter(parser, array, (ast_expression*)tfield, name)) { ast_delete(tfield); goto cleanup; @@ -5291,7 +5880,7 @@ skipvar: break; } - if (localblock && opts.standard == COMPILER_QCC) { + if (localblock && OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) { if (parsewarning(parser, WARN_LOCAL_CONSTANTS, "initializing expression turns variable `%s` into a constant in this standard", var->name) ) @@ -5300,10 +5889,18 @@ skipvar: } } - if (parser->tok != '{') { + if (parser->tok != '{' || var->expression.vtype != TYPE_FUNCTION) { if (parser->tok != '=') { - parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser)); - break; + if (!strcmp(parser_tokval(parser), "break")) { + if (!parser_next(parser)) { + parseerror(parser, "error parsing break definition"); + break; + } + (void)!!parsewarning(parser, WARN_BREAKDEF, "break definition ignored (suggest removing it)"); + } else { + parseerror(parser, "missing semicolon or initializer, got: `%s`", parser_tokval(parser)); + break; + } } if (!parser_next(parser)) { @@ -5311,12 +5908,16 @@ skipvar: break; } } - else if (opts.standard == COMPILER_QCC) { + else if (OPTS_OPTION_U32(OPTION_STANDARD) == COMPILER_QCC) { parseerror(parser, "expected '=' before function body in this standard"); } if (parser->tok == '#') { - ast_function *func = NULL; + ast_function *func = NULL; + ast_value *number = NULL; + float fractional; + float integral; + int builtin_num; if (localblock) { parseerror(parser, "cannot declare builtins within functions"); @@ -5330,12 +5931,42 @@ skipvar: parseerror(parser, "expected builtin number"); break; } - if (parser->tok != TOKEN_INTCONST) { - parseerror(parser, "builtin number must be an integer constant"); - break; - } - if (parser_token(parser)->constval.i < 0) { - parseerror(parser, "builtin number must be an integer greater than zero"); + + if (OPTS_FLAG(EXPRESSIONS_FOR_BUILTINS)) { + number = (ast_value*)parse_expression_leave(parser, true, false, false); + if (!number) { + parseerror(parser, "builtin number expected"); + break; + } + if (!ast_istype(number, ast_value) || !number->hasvalue || number->cvq != CV_CONST) + { + ast_unref(number); + parseerror(parser, "builtin number must be a compile time constant"); + break; + } + if (number->expression.vtype == TYPE_INTEGER) + builtin_num = number->constval.vint; + else if (number->expression.vtype == TYPE_FLOAT) + builtin_num = number->constval.vfloat; + else { + ast_unref(number); + parseerror(parser, "builtin number must be an integer constant"); + break; + } + ast_unref(number); + + fractional = modff(builtin_num, &integral); + if (builtin_num < 0 || fractional != 0) { + parseerror(parser, "builtin number must be an integer greater than zero"); + break; + } + + /* we only want the integral part anyways */ + builtin_num = integral; + } else if (parser->tok == TOKEN_INTCONST) { + builtin_num = parser_token(parser)->constval.i; + } else { + parseerror(parser, "builtin number must be a compile time constant"); break; } @@ -5354,10 +5985,13 @@ skipvar: } vec_push(parser->functions, func); - func->builtin = -parser_token(parser)->constval.i-1; + func->builtin = -builtin_num-1; } - if (!parser_next(parser)) { + if (OPTS_FLAG(EXPRESSIONS_FOR_BUILTINS) + ? (parser->tok != ',' && parser->tok != ';') + : (!parser_next(parser))) + { parseerror(parser, "expected comma or semicolon"); if (func) ast_function_delete(func); @@ -5365,7 +5999,21 @@ skipvar: break; } } - else if (parser->tok == '{' || parser->tok == '[') + else if (var->expression.vtype == TYPE_ARRAY && parser->tok == '{') + { + if (localblock) { + /* Note that fteqcc and most others don't even *have* + * local arrays, so this is not a high priority. + */ + parseerror(parser, "TODO: initializers for local arrays"); + break; + } + + var->hasvalue = true; + if (!parse_array(parser, var)) + break; + } + else if (var->expression.vtype == TYPE_FUNCTION && (parser->tok == '{' || parser->tok == '[')) { if (localblock) { parseerror(parser, "cannot declare functions within functions"); @@ -5422,7 +6070,7 @@ skipvar: } } else { int cvq; - shunt sy = { NULL, NULL }; + shunt sy = { NULL, NULL, NULL, NULL }; cvq = var->cvq; var->cvq = CV_NONE; vec_push(sy.out, syexp(ast_ctx(var), (ast_expression*)var)); @@ -5438,6 +6086,7 @@ skipvar: } vec_free(sy.out); vec_free(sy.ops); + vec_free(sy.argc); var->cvq = cvq; } } @@ -5543,7 +6192,7 @@ static bool parser_global_statement(parser_t *parser) } else { - parseerror(parser, "unexpected token: %s", parser->lex->tok.value); + parseerror(parser, "unexpected token: `%s`", parser->lex->tok.value); return false; } return true; @@ -5567,7 +6216,7 @@ static uint16_t progdefs_crc_both(uint16_t old, const char *str) return old; } -static void generate_checksum(parser_t *parser) +static void generate_checksum(parser_t *parser, ir_builder *ir) { uint16_t crc = 0xFFFF; size_t i; @@ -5608,7 +6257,7 @@ static void generate_checksum(parser_t *parser) if (!ast_istype(parser->fields[i], ast_value)) continue; value = (ast_value*)(parser->fields[i]); - switch (value->expression.next->expression.vtype) { + switch (value->expression.next->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; @@ -5621,20 +6270,18 @@ static void generate_checksum(parser_t *parser) crc = progdefs_crc_both(crc, ";\n"); } crc = progdefs_crc_both(crc, "} entvars_t;\n\n"); - - code_crc = crc; + ir->code->crc = crc; } -static parser_t *parser; - -bool parser_init() +parser_t *parser_create() { + parser_t *parser; lex_ctx empty_ctx; size_t i; parser = (parser_t*)mem_a(sizeof(parser_t)); if (!parser) - return false; + return NULL; memset(parser, 0, sizeof(*parser)); @@ -5647,7 +6294,7 @@ bool parser_init() if (!parser->assign_op) { printf("internal error: initializing parser: failed to find assign operator\n"); mem_d(parser); - return false; + return NULL; } vec_push(parser->variables, parser->htfields = util_htnew(PARSER_HT_SIZE)); @@ -5655,22 +6302,29 @@ bool parser_init() vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE)); vec_push(parser->_blocktypedefs, 0); + parser->aliases = util_htnew(PARSER_HT_SIZE); + + parser->ht_imm_string = util_htnew(512); + /* corrector */ vec_push(parser->correct_variables, correct_trie_new()); vec_push(parser->correct_variables_score, NULL); - empty_ctx.file = ""; - empty_ctx.line = 0; + empty_ctx.file = ""; + empty_ctx.line = 0; + empty_ctx.column = 0; parser->nil = ast_value_new(empty_ctx, "nil", TYPE_NIL); parser->nil->cvq = CV_CONST; if (OPTS_FLAG(UNTYPED_NIL)) util_htset(parser->htglobals, "nil", (void*)parser->nil); + parser->max_param_count = 1; + parser->const_vec[0] = ast_value_new(empty_ctx, "", TYPE_NOEXPR); parser->const_vec[1] = ast_value_new(empty_ctx, "", TYPE_NOEXPR); parser->const_vec[2] = ast_value_new(empty_ctx, "", TYPE_NOEXPR); - if (opts.add_info) { + if (OPTS_OPTION_BOOL(OPTION_ADD_INFO)) { parser->reserved_version = ast_value_new(empty_ctx, "reserved:version", TYPE_STRING); parser->reserved_version->cvq = CV_CONST; parser->reserved_version->hasvalue = true; @@ -5679,10 +6333,11 @@ bool parser_init() } else { parser->reserved_version = NULL; } - return true; + + return parser; } -bool parser_compile() +static bool parser_compile(parser_t *parser) { /* initial lexer/parser state */ parser->lex->flags.noops = true; @@ -5693,7 +6348,7 @@ bool parser_compile() { if (!parser_global_statement(parser)) { if (parser->tok == TOKEN_EOF) - parseerror(parser, "unexpected eof"); + parseerror(parser, "unexpected end of file"); else if (compile_errors) parseerror(parser, "there have been errors, bailing out"); lex_close(parser->lex); @@ -5714,29 +6369,32 @@ bool parser_compile() return !compile_errors; } -bool parser_compile_file(const char *filename) +bool parser_compile_file(parser_t *parser, const char *filename) { parser->lex = lex_open(filename); if (!parser->lex) { con_err("failed to open file \"%s\"\n", filename); return false; } - return parser_compile(); + return parser_compile(parser); } -bool parser_compile_string(const char *name, const char *str, size_t len) +bool parser_compile_string(parser_t *parser, const char *name, const char *str, size_t len) { 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(); + return parser_compile(parser); } -void parser_cleanup() +static void parser_remove_ast(parser_t *parser) { size_t i; + if (parser->ast_cleaned) + return; + parser->ast_cleaned = true; for (i = 0; i < vec_size(parser->accessors); ++i) { ast_delete(parser->accessors[i]->constval.vfunc); parser->accessors[i]->constval.vfunc = NULL; @@ -5764,6 +6422,7 @@ void parser_cleanup() vec_free(parser->functions); vec_free(parser->imm_vector); vec_free(parser->imm_string); + util_htdel(parser->ht_imm_string); vec_free(parser->imm_float); vec_free(parser->globals); vec_free(parser->fields); @@ -5781,7 +6440,6 @@ void parser_cleanup() vec_free(parser->correct_variables); vec_free(parser->correct_variables_score); - for (i = 0; i < vec_size(parser->_typedefs); ++i) ast_delete(parser->_typedefs[i]); vec_free(parser->_typedefs); @@ -5802,11 +6460,21 @@ void parser_cleanup() ast_value_delete(parser->const_vec[0]); ast_value_delete(parser->const_vec[1]); ast_value_delete(parser->const_vec[2]); + + if (parser->reserved_version) + ast_value_delete(parser->reserved_version); + + util_htdel(parser->aliases); + intrin_intrinsics_destroy(parser); +} +void parser_cleanup(parser_t *parser) +{ + parser_remove_ast(parser); mem_d(parser); } -bool parser_finish(const char *output) +bool parser_finish(parser_t *parser, const char *output) { size_t i; ir_builder *ir; @@ -5841,11 +6509,11 @@ bool parser_finish(const char *output) ast_expression *subtype; field->hasvalue = true; subtype = field->expression.next; - ifld = ir_builder_create_field(ir, field->name, subtype->expression.vtype); - if (subtype->expression.vtype == TYPE_FIELD) - ifld->fieldtype = subtype->expression.next->expression.vtype; - else if (subtype->expression.vtype == TYPE_FUNCTION) - ifld->outtype = subtype->expression.next->expression.vtype; + ifld = ir_builder_create_field(ir, field->name, subtype->vtype); + if (subtype->vtype == TYPE_FIELD) + ifld->fieldtype = subtype->next->vtype; + else if (subtype->vtype == TYPE_FUNCTION) + ifld->outtype = subtype->next->vtype; (void)!ir_value_set_field(field->ir_v, ifld); } } @@ -5855,8 +6523,8 @@ bool parser_finish(const char *output) continue; asvalue = (ast_value*)(parser->globals[i]); if (!asvalue->uses && !asvalue->hasvalue && asvalue->expression.vtype != TYPE_FUNCTION) { - retval = retval && !genwarning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE, - "unused global: `%s`", asvalue->name); + retval = retval && !compile_warning(ast_ctx(asvalue), WARN_UNUSED_VARIABLE, + "unused global: `%s`", asvalue->name); } if (!ast_global_codegen(asvalue, ir, false)) { con_out("failed to generate global %s\n", asvalue->name); @@ -5933,7 +6601,7 @@ bool parser_finish(const char *output) } for (i = 0; i < vec_size(parser->fields); ++i) { ast_value *asvalue; - asvalue = (ast_value*)(parser->fields[i]->expression.next); + asvalue = (ast_value*)(parser->fields[i]->next); if (!ast_istype((ast_expression*)asvalue, ast_value)) continue; @@ -5959,7 +6627,10 @@ bool parser_finish(const char *output) return false; } } - if (opts.dump) + + generate_checksum(parser, ir); + + if (OPTS_OPTION_BOOL(OPTION_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)) { @@ -5968,6 +6639,7 @@ bool parser_finish(const char *output) return false; } } + parser_remove_ast(parser); if (compile_Werrors) { con_out("*** there were warnings treated as errors\n"); @@ -5976,18 +6648,15 @@ bool parser_finish(const char *output) } if (retval) { - if (opts.dumpfin) + if (OPTS_OPTION_BOOL(OPTION_DUMPFIN)) ir_builder_dump(ir, con_out); - generate_checksum(parser); - if (!ir_builder_generate(ir, output)) { con_out("*** failed to generate output file\n"); ir_builder_delete(ir); return false; } } - ir_builder_delete(ir); return retval; }