/*
- * Copyright (C) 2012
+ * 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
#include "gmqcc.h"
#include "lexer.h"
+#include "ast.h"
/* beginning of locals */
#define PARSER_HT_LOCALS 2
ast_value *imm_float_one;
ast_value *imm_vector_zero;
ast_value *nil;
+ ast_value *reserved_version;
size_t crc_globals;
size_t crc_fields;
ht htglobals;
ht *typedefs;
+ /* same as above but for the spelling corrector */
+ correct_trie_t **correct_variables;
+ size_t ***correct_variables_score; /* vector of vector of size_t* */
+
/* not to be used directly, we use the hash table */
ast_expression **_locals;
size_t *_blocklocals;
/* we store the '=' operator info */
const oper_info *assign_op;
- /* TYPE_FIELD -> parser_find_fields is used instead of find_var
- * TODO: TYPE_VECTOR -> x, y and z are accepted in the gmqcc standard
- * anything else: type error
- */
- qcint memberof;
-
/* 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];
+
/* pragma flags */
bool noref;
+
+ /* collected information */
+ size_t max_param_count;
} parser_t;
-static const ast_expression *intrinsic_debug_typestring = (ast_expression*)0x10;
+static ast_expression * const intrinsic_debug_typestring = (ast_expression*)0x1;
static void parser_enterblock(parser_t *parser);
static bool parser_leaveblock(parser_t *parser);
static void parser_addlocal(parser_t *parser, const char *name, ast_expression *e);
+static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e);
static bool parse_typedef(parser_t *parser);
-static bool parse_variable(parser_t *parser, ast_block *localblock, bool nofields, int qualifier, ast_value *cached_typedef, bool noref, bool is_static, uint32_t qflags);
+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);
static ast_block* parse_block(parser_t *parser);
static bool parse_block_into(parser_t *parser, ast_block *block);
static bool parse_statement_or_block(parser_t *parser, ast_expression **out);
static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases);
-static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma);
-static ast_expression* parse_expression(parser_t *parser, bool stopatcomma);
+static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma, bool truthvalue, bool with_labels);
+static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels);
+static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname);
+static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname);
+static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
static void parseerror(parser_t *parser, const char *fmt, ...)
{
{
size_t i;
ast_value *out;
+ lex_ctx ctx;
for (i = 0; i < vec_size(parser->imm_float); ++i) {
const double compare = parser->imm_float[i]->constval.vfloat;
if (memcmp((const void*)&compare, (const void *)&d, sizeof(double)) == 0)
return parser->imm_float[i];
}
- out = ast_value_new(parser_ctx(parser), "#IMMEDIATE", TYPE_FLOAT);
+ if (parser->lex)
+ ctx = parser_ctx(parser);
+ else {
+ memset(&ctx, 0, sizeof(ctx));
+ }
+ out = ast_value_new(ctx, "#IMMEDIATE", TYPE_FLOAT);
out->cvq = CV_CONST;
out->hasvalue = true;
out->constval.vfloat = d;
return ( ast_expression*)util_htget(parser->htfields, name);
}
+static ast_expression* parser_find_label(parser_t *parser, const char *name)
+{
+ size_t i;
+ for(i = 0; i < vec_size(parser->labels); i++)
+ if (!strcmp(parser->labels[i]->name, name))
+ return (ast_expression*)parser->labels[i];
+ return NULL;
+}
+
static ast_expression* parser_find_global(parser_t *parser, const char *name)
{
return (ast_expression*)util_htget(parser->htglobals, name);
exprs[i] = sy->out[vec_size(sy->out)+i].out;
blocks[i] = sy->out[vec_size(sy->out)+i].block;
asvalue[i] = (ast_value*)exprs[i];
+
+ if (exprs[i]->expression.vtype == TYPE_NOEXPR &&
+ !(i != 0 && op->id == opid2('?',':')) &&
+ !(i == 1 && op->id == opid1('.')))
+ {
+ if (ast_istype(exprs[i], ast_label))
+ compile_error(ast_ctx(exprs[i]), "expected expression, got an unknown identifier");
+ else
+ compile_error(ast_ctx(exprs[i]), "not an expression");
+ (void)!compile_warning(ast_ctx(exprs[i]), WARN_DEBUG, "expression %u\n", (unsigned int)i);
+ }
}
if (blocks[0] && !vec_size(blocks[0]->exprs) && op->id != opid1(',')) {
return false;
case opid1('.'):
- if (exprs[0]->expression.vtype == TYPE_ENTITY) {
+ if (exprs[0]->expression.vtype == TYPE_VECTOR &&
+ exprs[1]->expression.vtype == TYPE_NOEXPR)
+ {
+ if (exprs[1] == (ast_expression*)parser->const_vec[0])
+ out = (ast_expression*)ast_member_new(ctx, exprs[0], 0, NULL);
+ else if (exprs[1] == (ast_expression*)parser->const_vec[1])
+ out = (ast_expression*)ast_member_new(ctx, exprs[0], 1, NULL);
+ else if (exprs[1] == (ast_expression*)parser->const_vec[2])
+ out = (ast_expression*)ast_member_new(ctx, exprs[0], 2, NULL);
+ else {
+ parseerror(parser, "access to invalid vector component");
+ return false;
+ }
+ }
+ else if (exprs[0]->expression.vtype == TYPE_ENTITY) {
if (exprs[1]->expression.vtype != TYPE_FIELD) {
parseerror(parser, "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) {
- parseerror(parser, "internal error: vector access is not supposed to be handled at this point");
+ parseerror(parser, "vectors cannot be accessed this way");
return false;
}
else {
{
if (CanConstFold(exprs[0], exprs[1]))
out = (ast_expression*)parser_const_float(parser, vec3_mulvv(ConstV(0), ConstV(1)));
+ else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[0])) {
+ vector vec = ConstV(0);
+ 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;
+ ((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);
+ }
+ 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;
+ ((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);
+ }
+ 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;
+ ((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);
+ }
+ else
+ out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
+ }
+ else if (OPTS_OPTIMIZATION(OPTIM_VECTOR_COMPONENTS) && CanConstFold1(exprs[1])) {
+ vector vec = ConstV(1);
+ 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;
+ ((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));
+ }
+ 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;
+ ((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));
+ }
+ 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;
+ ((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));
+ }
+ else
+ out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
+ }
else
out = (ast_expression*)ast_binary_new(ctx, INSTR_MUL_V, exprs[0], exprs[1]);
}
exprs[0], exprs[1]);
break;
case opid1('^'):
- parseerror(parser, "TODO: bitxor");
+ compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-xor via ^");
return false;
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))));
+ else
+ out = (ast_expression*)parser_const_float(parser, (double)((int)(ConstF(0)) >> (int)(ConstF(1))));
+ break;
+ }
case opid3('<','<','='):
case opid3('>','>','='):
- parseerror(parser, "TODO: shifts");
+ compile_error(ast_ctx(exprs[0]), "Not Yet Implemented: bit-shifts");
return false;
case opid2('|','|'):
( (generated_op == INSTR_OR)
? (immediate_is_true(ctx, asvalue[0]) || immediate_is_true(ctx, asvalue[1]))
: (immediate_is_true(ctx, asvalue[0]) && immediate_is_true(ctx, asvalue[1])) )
- ? 0 : 1);
+ ? 1 : 0);
}
else
{
return false;
}
vec_pop(parser->pot);
- if (exprs[1]->expression.vtype != exprs[2]->expression.vtype) {
+ 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));
parseerror(parser, "operands of ternary expression must have the same type, got %s and %s", ty1, ty2);
return false;
}
if (CanConstFold1(exprs[0]))
- out = (ConstF(0) ? exprs[1] : exprs[2]);
+ out = (immediate_is_true(ctx, asvalue[0]) ? exprs[1] : exprs[2]);
else
out = (ast_expression*)ast_ternary_new(ctx, exprs[0], exprs[1], exprs[2]);
break;
}
else
assignop = type_storep_instr[exprs[0]->expression.vtype];
- if (assignop == AINSTR_END ||
- !ast_compare_type(field->expression.next, exprs[1]))
+ if (assignop == AINSTR_END || !ast_compare_type(field->expression.next, exprs[1]))
{
ast_type_to_string(field->expression.next, ty1, sizeof(ty1));
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
parseerror(parser, "invalid types in assignment: cannot assign %s to %s", ty2, ty1);
}
- else if (exprs[1]->expression.vtype != TYPE_NIL &&
- !ast_compare_type(exprs[0], exprs[1]))
+ else if (!ast_compare_type(exprs[0], exprs[1]))
{
ast_type_to_string(exprs[0], ty1, sizeof(ty1));
ast_type_to_string(exprs[1], ty2, sizeof(ty2));
{
/* was a function call */
ast_expression *fun;
+ ast_value *funval = NULL;
ast_call *call;
size_t fid;
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");
return false;
}
+ if (ast_istype(fun, ast_value)) {
+ funval = (ast_value*)fun;
+ if ((fun->expression.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);
+ }
+ }
+
/* overwrite fid, the function, with a call */
sy->out[fid] = syexp(call->expression.node.context, (ast_expression*)call);
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 (!fval) {
+ return !parsewarning(parser, WARN_DEPRECATED,
+ "call to function (which is marked deprecated)\n",
+ "-> it has been declared here: %s:%i",
+ ast_ctx(fun).file, ast_ctx(fun).line);
+ }
+ if (!fval->desc) {
+ return !parsewarning(parser, WARN_DEPRECATED,
+ "call to `%s` (which is marked deprecated)\n"
+ "-> `%s` declared here: %s:%i",
+ fval->name, fval->name, ast_ctx(fun).file, ast_ctx(fun).line);
+ }
+ return !parsewarning(parser, WARN_DEPRECATED,
+ "call to `%s` (deprecated: %s)\n"
+ "-> `%s` declared here: %s:%i",
+ fval->name, fval->desc, fval->name, ast_ctx(fun).file,
+ ast_ctx(fun).line);
+ }
+
if (vec_size(fun->expression.params) != paramcount &&
!((fun->expression.flags & AST_FLAG_VARIADIC) &&
vec_size(fun->expression.params) < paramcount))
{
- ast_value *fval;
const char *fewmany = (vec_size(fun->expression.params) > paramcount) ? "few" : "many";
-
- fval = (ast_istype(fun, ast_value) ? ((ast_value*)fun) : NULL);
- if (opts.standard == COMPILER_GMQCC)
- {
- if (fval)
- parseerror(parser, "too %s parameters for call to %s: expected %i, got %i\n"
- " -> `%s` has been declared here: %s:%i",
- fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
- fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
- else
- parseerror(parser, "too %s parameters for function call: expected %i, got %i\n"
- " -> it has been declared here: %s:%i",
- fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
- ast_ctx(fun).file, (int)ast_ctx(fun).line);
- return false;
- }
+ 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,
+ fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
else
- {
- if (fval)
- return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
- "too %s parameters for call to %s: expected %i, got %i\n"
- " -> `%s` has been declared here: %s:%i",
- fewmany, fval->name, (int)vec_size(fun->expression.params), (int)paramcount,
- fval->name, ast_ctx(fun).file, (int)ast_ctx(fun).line);
- else
- return !parsewarning(parser, WARN_TOO_FEW_PARAMETERS,
- "too %s parameters for function call: expected %i, got %i\n"
- " -> it has been declared here: %s:%i",
- fewmany, (int)vec_size(fun->expression.params), (int)paramcount,
- ast_ctx(fun).file, (int)ast_ctx(fun).line);
- }
+ 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,
+ ast_ctx(fun).file, (int)ast_ctx(fun).line);
}
}
}
}
-static ast_expression* parse_expression_leave(parser_t *parser, bool stopatcomma)
+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);
+
+ if (!parser_next(parser) || parser->tok != '(') {
+ parseerror(parser, "expected parameter index and type in parenthesis");
+ return NULL;
+ }
+ if (!parser_next(parser)) {
+ parseerror(parser, "error parsing parameter index");
+ return NULL;
+ }
+
+ idx = parse_expression_leave(parser, true, false, false);
+ if (!idx)
+ return NULL;
+
+ if (parser->tok != ',') {
+ ast_unref(idx);
+ parseerror(parser, "expected comma after parameter index");
+ return NULL;
+ }
+
+ if (!parser_next(parser) || (parser->tok != TOKEN_IDENT && parser->tok != TOKEN_TYPENAME)) {
+ ast_unref(idx);
+ parseerror(parser, "expected typename for vararg");
+ return NULL;
+ }
+
+ typevar = parse_typename(parser, NULL, NULL);
+ if (!typevar) {
+ ast_unref(idx);
+ return NULL;
+ }
+
+ if (parser->tok != ')') {
+ ast_unref(idx);
+ ast_delete(typevar);
+ parseerror(parser, "expected closing paren");
+ 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))
+ {
+ char ty1[1024];
+ char ty2[1024];
+ ast_type_to_string((ast_expression*)typevar, ty1, sizeof(ty1));
+ ast_type_to_string((ast_expression*)funtype->expression.varparam, ty2, sizeof(ty2));
+ compile_error(ast_ctx(typevar),
+ "function was declared to take varargs of type `%s`, requested type is: %s",
+ ty2, ty1);
+ }
+
+ out = (ast_expression*)ast_array_index_new(ctx, (ast_expression*)(parser->function->varargs), idx);
+ ast_type_adopt(out, typevar);
+ ast_delete(typevar);
+ return out;
+}
+
+static ast_expression* parse_vararg(parser_t *parser)
+{
+ bool old_noops = parser->lex->flags.noops;
+ enum parser_pot *old_pot = parser->pot;
+
+ 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;
- bool gotmemberof = 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
while (true)
{
- if (gotmemberof)
- gotmemberof = false;
- else
- parser->memberof = 0;
-
if (OPTS_FLAG(TRANSLATABLE_STRINGS) &&
parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "_"))
{
goto onerr;
}
}
+ else if (parser->tok == TOKEN_DOTS)
+ {
+ 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"));
+ }
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;
if (wantop) {
parseerror(parser, "expected operator or end of statement");
goto onerr;
}
wantop = true;
- /* variable */
- if (opts.standard == COMPILER_GMQCC)
+ /* 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))
{
- if (parser->memberof == TYPE_ENTITY) {
- /* still get vars first since there could be a fieldpointer */
- var = parser_find_var(parser, parser_tokval(parser));
- if (!var)
- var = parser_find_field(parser, parser_tokval(parser));
- }
- else if (parser->memberof == TYPE_VECTOR)
- {
- parseerror(parser, "TODO: implement effective vector member access");
- goto onerr;
- }
- else if (parser->memberof) {
- parseerror(parser, "namespace for member not found");
- goto onerr;
- }
- else
- var = parser_find_var(parser, parser_tokval(parser));
+ /* When adding more intrinsics, fix the above condition */
+ prev = NULL;
+ }
+ 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);
+ }
+ }
if (!var) {
/* intrinsics */
if (!strcmp(parser_tokval(parser), "__builtin_debug_typestring")) {
var = (ast_expression*)intrinsic_debug_typestring;
-
}
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.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;
+ }
+ }
parseerror(parser, "unexpected ident: %s", parser_tokval(parser));
goto onerr;
}
if (vec_size(sy.ops) && !vec_last(sy.ops).paren)
olast = &operators[vec_last(sy.ops).etype-1];
+#define IsAssignOp(x) (\
+ (x) == opid1('=') || \
+ (x) == opid2('+','=') || \
+ (x) == opid2('-','=') || \
+ (x) == opid2('*','=') || \
+ (x) == opid2('/','=') || \
+ (x) == opid2('%','=') || \
+ (x) == opid2('&','=') || \
+ (x) == opid2('|','=') || \
+ (x) == opid3('&','~','=') \
+ )
+ 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))
+ )
+ {
+ (void)!parsewarning(parser, WARN_PARENTHESIS, "suggesting parenthesis around assignment used as truth value");
+ warn_truthvalue = false;
+ }
+ }
+
while (olast && (
(op->prec < olast->prec) ||
(op->assoc == ASSOC_LEFT && op->prec <= olast->prec) ) )
olast = NULL;
}
- if (op->id == opid1('.') && opts.standard == COMPILER_GMQCC) {
- /* for gmqcc standard: open up the namespace of the previous type */
- ast_expression *prevex = vec_last(sy.out).out;
- if (!prevex) {
- parseerror(parser, "unexpected member operator");
- goto onerr;
- }
- if (prevex->expression.vtype == TYPE_ENTITY)
- parser->memberof = TYPE_ENTITY;
- else if (prevex->expression.vtype == TYPE_VECTOR)
- parser->memberof = TYPE_VECTOR;
- else {
- parseerror(parser, "type error: type has no members");
- goto onerr;
- }
- gotmemberof = true;
- }
-
if (op->id == opid1('(')) {
if (wantop) {
size_t sycount = vec_size(sy.out);
goto onerr;
}
if (parser->tok == ';' ||
- (!parens && parser->tok == ']'))
+ (!parens && (parser->tok == ']' || parser->tok == ')' || parser->tok == '}')))
{
break;
}
return NULL;
}
-static ast_expression* parse_expression(parser_t *parser, bool stopatcomma)
+static ast_expression* parse_expression(parser_t *parser, bool stopatcomma, bool with_labels)
{
- ast_expression *e = parse_expression_leave(parser, stopatcomma);
+ ast_expression *e = parse_expression_leave(parser, stopatcomma, false, with_labels);
if (!e)
return NULL;
+ if (parser->tok != ';') {
+ parseerror(parser, "semicolon expected after expression");
+ ast_unref(e);
+ return NULL;
+ }
if (!parser_next(parser)) {
- ast_delete(e);
+ ast_unref(e);
return NULL;
}
return e;
vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
vec_push(parser->_blocktypedefs, vec_size(parser->_typedefs));
vec_push(parser->_block_ctx, parser_ctx(parser));
+
+ /* corrector */
+ vec_push(parser->correct_variables, correct_trie_new());
+ vec_push(parser->correct_variables_score, NULL);
}
static bool parser_leaveblock(parser_t *parser)
}
util_htdel(vec_last(parser->variables));
+ correct_del(vec_last(parser->correct_variables), vec_last(parser->correct_variables_score));
+
vec_pop(parser->variables);
+ vec_pop(parser->correct_variables);
+ vec_pop(parser->correct_variables_score);
if (!vec_size(parser->_blocklocals)) {
parseerror(parser, "internal error: parser_leaveblock with no block (2)");
return false;
vec_pop(parser->typedefs);
vec_pop(parser->_block_ctx);
+
return rv;
}
{
vec_push(parser->_locals, e);
util_htset(vec_last(parser->variables), name, (void*)e);
+
+ /* corrector */
+ correct_add (
+ vec_last(parser->correct_variables),
+ &vec_last(parser->correct_variables_score),
+ name
+ );
+}
+
+static void parser_addglobal(parser_t *parser, const char *name, ast_expression *e)
+{
+ vec_push(parser->globals, e);
+ util_htset(parser->htglobals, name, e);
+
+ /* corrector */
+ correct_add (
+ parser->correct_variables[0],
+ &parser->correct_variables_score[0],
+ name
+ );
}
static ast_expression* process_condition(parser_t *parser, ast_expression *cond, bool *_ifnot)
return false;
}
/* parse the condition */
- cond = parse_expression_leave(parser, false);
+ cond = parse_expression_leave(parser, false, true, false);
if (!cond)
return false;
/* closing paren */
ast_delete(cond);
return false;
}
+ if (!ontrue)
+ ontrue = (ast_expression*)ast_block_new(parser_ctx(parser));
/* check for an else */
if (!strcmp(parser_tokval(parser), "else")) {
/* parse into the 'else' branch */
return false;
}
/* parse the condition */
- cond = parse_expression_leave(parser, false);
+ cond = parse_expression_leave(parser, false, true, false);
if (!cond)
return false;
/* closing paren */
return false;
}
/* parse the condition */
- cond = parse_expression_leave(parser, false);
+ cond = parse_expression_leave(parser, false, true, false);
if (!cond)
return false;
/* closing paren */
typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
if (typevar || parser->tok == TOKEN_TYPENAME) {
+#if 0
if (opts.standard != COMPILER_GMQCC) {
if (parsewarning(parser, WARN_EXTENSIONS,
"current standard does not allow variable declarations in for-loop initializers"))
goto onerr;
}
- if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0))
+#endif
+ if (!parse_variable(parser, block, true, CV_VAR, typevar, false, false, 0, NULL))
goto onerr;
}
else if (parser->tok != ';')
{
- initexpr = parse_expression_leave(parser, false);
+ initexpr = parse_expression_leave(parser, false, false, false);
if (!initexpr)
goto onerr;
}
/* parse the condition */
if (parser->tok != ';') {
- cond = parse_expression_leave(parser, false);
+ cond = parse_expression_leave(parser, false, true, false);
if (!cond)
goto onerr;
}
/* parse the incrementor */
if (parser->tok != ')') {
- increment = parse_expression_leave(parser, false);
+ increment = parse_expression_leave(parser, false, false, false);
if (!increment)
goto onerr;
if (!ast_side_effects(increment)) {
}
if (parser->tok != ';') {
- exp = parse_expression(parser, false);
+ exp = parse_expression(parser, false, false);
if (!exp)
return false;
- if (exp->expression.vtype != expected->expression.next->expression.vtype) {
+ if (exp->expression.vtype != TYPE_NIL &&
+ exp->expression.vtype != expected->expression.next->expression.vtype)
+ {
parseerror(parser, "return with invalid expression");
}
if (!parser_next(parser))
parseerror(parser, "parse error");
if (expected->expression.next->expression.vtype != TYPE_VOID) {
- if (opts.standard != COMPILER_GMQCC)
- (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
- else
- parseerror(parser, "return without value");
+ (void)!parsewarning(parser, WARN_MISSING_RETURN_VALUES, "return without value");
}
ret = ast_return_new(ctx, NULL);
}
return false;
}
+ if (!vec_size(loops)) {
+ if (is_continue)
+ parseerror(parser, "`continue` can only be used inside loops");
+ else
+ parseerror(parser, "`break` can only be used inside loops or switches");
+ }
+
if (parser->tok == TOKEN_IDENT) {
if (!OPTS_FLAG(LOOP_LABELS))
parseerror(parser, "labeled loops not activated, try using -floop-labels");
/* returns true when it was a variable qualifier, false otherwise!
* on error, cvq is set to CV_WRONG
*/
-static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags)
+static bool parse_qualifiers(parser_t *parser, bool with_local, int *cvq, bool *noref, bool *is_static, uint32_t *_flags, char **message)
{
bool had_const = false;
bool had_var = false;
return false;
}
}
+
+
+ else if (!strcmp(parser_tokval(parser), "deprecated") && !(flags & AST_FLAG_DEPRECATED)) {
+ flags |= AST_FLAG_DEPRECATED;
+ *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, "`deprecated` 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, "`deprecated` attribute expected `)` after parameter");
+ goto argerr;
+ }
+
+ if (!parser_next(parser)) {
+ parseerror(parser, "parse error in attribute");
+ goto argerr;
+ }
+ }
+ /* no message */
+ if (parser->tok != TOKEN_ATTRIBUTE_CLOSE) {
+ parseerror(parser, "`deprecated` attribute expected `]]`");
+
+ argerr: /* ugly */
+ if (*message) mem_d(*message);
+ *message = NULL;
+ *cvq = CV_WRONG;
+ return false;
+ }
+ }
else
{
/* Skip tokens until we hit a ]] */
}
}
}
- else if (!strcmp(parser_tokval(parser), "static"))
+ else if (with_local && !strcmp(parser_tokval(parser), "static"))
had_static = true;
else if (!strcmp(parser_tokval(parser), "const"))
had_const = true;
return false;
}
/* parse the operand */
- operand = parse_expression_leave(parser, false);
+ operand = parse_expression_leave(parser, false, false, false);
if (!operand)
return false;
if (parser->tok == TOKEN_IDENT)
typevar = parser_find_typedef(parser, parser_tokval(parser), 0);
if (typevar || parser->tok == TOKEN_TYPENAME) {
- if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0)) {
+ if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL)) {
ast_delete(switchnode);
return false;
}
continue;
}
- if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags))
+ if (parse_qualifiers(parser, true, &cvq, &noref, &is_static, &qflags, NULL))
{
if (cvq == CV_WRONG) {
ast_delete(switchnode);
return false;
}
- if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags)) {
+ if (!parse_variable(parser, block, false, cvq, NULL, noref, is_static, qflags, NULL)) {
ast_delete(switchnode);
return false;
}
parseerror(parser, "expected expression for case");
return false;
}
- swcase.value = parse_expression_leave(parser, false);
+ swcase.value = parse_expression_leave(parser, false, false, false);
if (!swcase.value) {
ast_delete(switchnode);
parseerror(parser, "expected expression for case");
return true;
}
+/* parse computed goto sides */
+static ast_expression *parse_goto_computed(parser_t *parser, ast_expression **side) {
+ ast_expression *on_true;
+ ast_expression *on_false;
+ ast_expression *cond;
+
+ if (!*side)
+ return NULL;
+
+ if (ast_istype(*side, ast_ternary)) {
+ ast_ternary *tern = (ast_ternary*)*side;
+ on_true = parse_goto_computed(parser, &tern->on_true);
+ on_false = parse_goto_computed(parser, &tern->on_false);
+
+ if (!on_true || !on_false) {
+ parseerror(parser, "expected label or expression in ternary");
+ if (on_true) ast_unref(on_true);
+ if (on_false) ast_unref(on_false);
+ return NULL;
+ }
+
+ cond = tern->cond;
+ tern->cond = NULL;
+ ast_delete(tern);
+ *side = NULL;
+ return (ast_expression*)ast_ifthen_new(parser_ctx(parser), cond, on_true, on_false);
+ } else if (ast_istype(*side, ast_label)) {
+ ast_goto *gt = ast_goto_new(parser_ctx(parser), ((ast_label*)*side)->name);
+ ast_goto_set_label(gt, ((ast_label*)*side));
+ *side = NULL;
+ return (ast_expression*)gt;
+ }
+ return NULL;
+}
+
static bool parse_goto(parser_t *parser, ast_expression **out)
{
- size_t i;
- ast_goto *gt;
+ ast_goto *gt = NULL;
+ ast_expression *lbl;
- if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
- parseerror(parser, "expected label name after `goto`");
+ if (!parser_next(parser))
return false;
+
+ if (parser->tok != TOKEN_IDENT) {
+ ast_expression *expression;
+
+ /* could be an expression i.e computed goto :-) */
+ if (parser->tok != '(') {
+ parseerror(parser, "expected label name after `goto`");
+ return false;
+ }
+
+ /* failed to parse expression for goto */
+ if (!(expression = parse_expression(parser, false, true)) ||
+ !(*out = parse_goto_computed(parser, &expression))) {
+ parseerror(parser, "invalid goto expression");
+ ast_unref(expression);
+ return false;
+ }
+
+ return true;
}
+ /* not computed goto */
gt = ast_goto_new(parser_ctx(parser), parser_tokval(parser));
-
- for (i = 0; i < vec_size(parser->labels); ++i) {
- if (!strcmp(parser->labels[i]->name, parser_tokval(parser))) {
- ast_goto_set_label(gt, parser->labels[i]);
- break;
+ lbl = parser_find_label(parser, gt->name);
+ if (lbl) {
+ if (!ast_istype(lbl, ast_label)) {
+ parseerror(parser, "internal error: label is not an ast_label");
+ ast_delete(gt);
+ return false;
}
+ ast_goto_set_label(gt, (ast_label*)lbl);
}
- if (i == vec_size(parser->labels))
+ else
vec_push(parser->gotos, gt);
if (!parser_next(parser) || parser->tok != ';') {
static bool parse_statement(parser_t *parser, ast_block *block, ast_expression **out, bool allow_cases)
{
bool noref, is_static;
- int cvq = CV_NONE;
- uint32_t qflags = 0;
+ int cvq = CV_NONE;
+ uint32_t qflags = 0;
ast_value *typevar = NULL;
+ char *vstring = NULL;
*out = NULL;
if (parsewarning(parser, WARN_EXTENSIONS, "missing 'local' keyword when declaring a local variable"))
return false;
}
- if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0))
+ if (!parse_variable(parser, block, false, CV_NONE, typevar, false, false, 0, NULL))
return false;
return true;
}
- else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags))
+ else if (parse_qualifiers(parser, !!block, &cvq, &noref, &is_static, &qflags, &vstring))
{
if (cvq == CV_WRONG)
return false;
- return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags);
+ return parse_variable(parser, block, true, cvq, NULL, noref, is_static, qflags, vstring);
}
else if (parser->tok == TOKEN_KEYWORD)
{
parseerror(parser, "label must be an identifier");
return false;
}
- label = ast_label_new(parser_ctx(parser), parser_tokval(parser));
- if (!label)
- return false;
- vec_push(parser->labels, label);
+ label = (ast_label*)parser_find_label(parser, parser_tokval(parser));
+ if (label) {
+ if (!label->undefined) {
+ parseerror(parser, "label `%s` already defined", label->name);
+ return false;
+ }
+ label->undefined = false;
+ }
+ else {
+ label = ast_label_new(parser_ctx(parser), parser_tokval(parser), false);
+ vec_push(parser->labels, label);
+ }
*out = (ast_expression*)label;
if (!parser_next(parser)) {
parseerror(parser, "parse error after label");
}
else
{
- ast_expression *exp = parse_expression(parser, false);
+ ast_expression *exp = parse_expression(parser, false, false);
if (!exp)
return false;
*out = exp;
}
}
+static bool parse_enum(parser_t *parser)
+{
+ qcfloat num = 0;
+ ast_value **values = NULL;
+ ast_value *var = NULL;
+ ast_value *asvalue;
+
+ ast_expression *old;
+
+ if (!parser_next(parser) || parser->tok != '{') {
+ parseerror(parser, "expected `{` after `enum` keyword");
+ return false;
+ }
+
+ while (true) {
+ if (!parser_next(parser) || parser->tok != TOKEN_IDENT) {
+ if (parser->tok == '}') {
+ /* allow an empty enum */
+ break;
+ }
+ parseerror(parser, "expected identifier or `}`");
+ goto onerror;
+ }
+
+ old = parser_find_field(parser, parser_tokval(parser));
+ if (!old)
+ old = parser_find_global(parser, parser_tokval(parser));
+ if (old) {
+ parseerror(parser, "value `%s` has already been declared here: %s:%i",
+ parser_tokval(parser), ast_ctx(old).file, ast_ctx(old).line);
+ goto onerror;
+ }
+
+ var = ast_value_new(parser_ctx(parser), parser_tokval(parser), TYPE_FLOAT);
+ vec_push(values, var);
+ var->cvq = CV_CONST;
+ var->hasvalue = true;
+ var->constval.vfloat = num++;
+
+ parser_addglobal(parser, var->name, (ast_expression*)var);
+
+ if (!parser_next(parser)) {
+ parseerror(parser, "expected `=`, `}` or comma after identifier");
+ goto onerror;
+ }
+
+ if (parser->tok == ',')
+ continue;
+ if (parser->tok == '}')
+ break;
+ if (parser->tok != '=') {
+ parseerror(parser, "expected `=`, `}` or comma after identifier");
+ goto onerror;
+ }
+
+ if (!parser_next(parser)) {
+ parseerror(parser, "expected expression after `=`");
+ goto onerror;
+ }
+
+ /* We got a value! */
+ old = parse_expression_leave(parser, true, false, false);
+ asvalue = (ast_value*)old;
+ if (!ast_istype(old, ast_value) || asvalue->cvq != CV_CONST || !asvalue->hasvalue) {
+ compile_error(ast_ctx(var), "constant value or expression expected");
+ goto onerror;
+ }
+ num = (var->constval.vfloat = asvalue->constval.vfloat) + 1;
+
+ if (parser->tok == '}')
+ break;
+ if (parser->tok != ',') {
+ parseerror(parser, "expected `}` or comma after expression");
+ goto onerror;
+ }
+ }
+
+ if (parser->tok != '}') {
+ parseerror(parser, "internal error: breaking without `}`");
+ goto onerror;
+ }
+
+ if (!parser_next(parser) || parser->tok != ';') {
+ parseerror(parser, "expected semicolon after enumeration");
+ goto onerror;
+ }
+
+ if (!parser_next(parser)) {
+ parseerror(parser, "parse error after enumeration");
+ goto onerror;
+ }
+
+ vec_free(values);
+ return true;
+
+onerror:
+ vec_free(values);
+ return false;
+}
+
static bool parse_block_into(parser_t *parser, ast_block *block)
{
bool retval = true;
return false;
}
- if (var->expression.flags & AST_FLAG_VARIADIC) {
+ 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"))
{
if (!parser_next(parser))
return false;
- framenum = parse_expression_leave(parser, true);
+ framenum = parse_expression_leave(parser, true, false, false);
if (!framenum) {
parseerror(parser, "expected a framenumber constant in[frame,think] notation");
return false;
return false;
}
- vec_push(parser->globals, (ast_expression*)thinkfunc);
- util_htset(parser->htglobals, thinkfunc->name, thinkfunc);
+ parser_addglobal(parser, thinkfunc->name, (ast_expression*)thinkfunc);
+
nextthink = (ast_expression*)thinkfunc;
} else {
- nextthink = parse_expression_leave(parser, true);
+ nextthink = parse_expression_leave(parser, true, false, false);
if (!nextthink) {
ast_unref(framenum);
parseerror(parser, "expected a think-function in [frame,think] notation");
}
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);
+ func->argc = argc;
+ }
+
+ if (OPTS_FLAG(VARIADIC_ARGS) && var->expression.flags & AST_FLAG_VARIADIC) {
+ char name[1024];
+ ast_value *varargs = ast_value_new(ast_ctx(var), "reserved:va_args", TYPE_ARRAY);
+ 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);
+ if (!parser_create_array_setter_proto(parser, varargs, name)) {
+ ast_delete(varargs);
+ ast_block_delete(block);
+ goto enderr;
+ }
+ 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;
+ }
+ func->varargs = varargs;
+ }
+
parser->function = func;
if (!parse_block_into(parser, block)) {
ast_block_delete(block);
if (!subscript)
return NULL;
+ subscript->expression.next = ast_type_copy(ast_ctx(subscript), (ast_expression*)subscript);
+ subscript->expression.vtype = TYPE_FIELD;
+
entfield = ast_entfield_new_force(ctx,
(ast_expression*)entity,
(ast_expression*)subscript,
return true;
}
-static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
+static ast_value* parser_create_array_setter_proto(parser_t *parser, ast_value *array, const char *funcname)
{
- ast_expression *root = NULL;
ast_value *index = NULL;
ast_value *value = NULL;
ast_function *func;
if (!ast_istype(array->expression.next, ast_value)) {
parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
- return false;
+ return NULL;
}
if (!parser_create_array_accessor(parser, array, funcname, &fval))
- return false;
+ return NULL;
func = fval->constval.vfunc;
fval->expression.next = (ast_expression*)ast_value_new(ast_ctx(array), "<void>", TYPE_VOID);
vec_push(fval->expression.params, index);
vec_push(fval->expression.params, value);
- root = array_setter_node(parser, array, index, value, 0, array->expression.count);
- if (!root) {
- parseerror(parser, "failed to build accessor search tree");
- goto cleanup;
- }
-
array->setter = fval;
- return ast_block_add_expr(func->blocks[0], root);
+ return fval;
cleanup:
if (index) ast_delete(index);
if (value) ast_delete(value);
- if (root) ast_delete(root);
ast_delete(func);
ast_delete(fval);
- return false;
+ return NULL;
+}
+
+static bool parser_create_array_setter_impl(parser_t *parser, ast_value *array)
+{
+ ast_expression *root = NULL;
+ root = array_setter_node(parser, array,
+ array->setter->expression.params[0],
+ array->setter->expression.params[1],
+ 0, array->expression.count);
+ if (!root) {
+ parseerror(parser, "failed to build accessor search tree");
+ return false;
+ }
+ if (!ast_block_add_expr(array->setter->constval.vfunc->blocks[0], root)) {
+ ast_delete(root);
+ return false;
+ }
+ return true;
+}
+
+static bool parser_create_array_setter(parser_t *parser, ast_value *array, const char *funcname)
+{
+ if (!parser_create_array_setter_proto(parser, array, funcname))
+ return false;
+ return parser_create_array_setter_impl(parser, array);
}
static bool parser_create_array_field_setter(parser_t *parser, ast_value *array, const char *funcname)
return false;
}
-static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
+static ast_value* parser_create_array_getter_proto(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
{
- ast_expression *root = NULL;
ast_value *index = NULL;
ast_value *fval;
ast_function *func;
*/
if (!ast_istype(array->expression.next, ast_value)) {
parseerror(parser, "internal error: array accessor needs to build an ast_value with a copy of the element type");
- return false;
+ return NULL;
}
if (!parser_create_array_accessor(parser, array, funcname, &fval))
- return false;
+ return NULL;
func = fval->constval.vfunc;
fval->expression.next = ast_type_copy(ast_ctx(array), elemtype);
}
vec_push(fval->expression.params, index);
- root = array_getter_node(parser, array, index, 0, array->expression.count);
- if (!root) {
- parseerror(parser, "failed to build accessor search tree");
- goto cleanup;
- }
-
array->getter = fval;
- return ast_block_add_expr(func->blocks[0], root);
+ return fval;
cleanup:
if (index) ast_delete(index);
- if (root) ast_delete(root);
ast_delete(func);
ast_delete(fval);
- return false;
+ return NULL;
+}
+
+static bool parser_create_array_getter_impl(parser_t *parser, ast_value *array)
+{
+ ast_expression *root = NULL;
+
+ root = array_getter_node(parser, array, array->getter->expression.params[0], 0, array->expression.count);
+ if (!root) {
+ parseerror(parser, "failed to build accessor search tree");
+ return false;
+ }
+ if (!ast_block_add_expr(array->getter->constval.vfunc->blocks[0], root)) {
+ ast_delete(root);
+ return false;
+ }
+ return true;
+}
+
+static bool parser_create_array_getter(parser_t *parser, ast_value *array, const ast_expression *elemtype, const char *funcname)
+{
+ if (!parser_create_array_getter_proto(parser, array, elemtype, funcname))
+ return false;
+ return parser_create_array_getter_impl(parser, array);
}
static ast_value *parse_typename(parser_t *parser, ast_value **storebase, ast_value *cached_typedef);
ast_value *fval;
bool first = true;
bool variadic = false;
+ ast_value *varparam = NULL;
+ char *argcounter = NULL;
ctx = parser_ctx(parser);
if (parser->tok == TOKEN_DOTS) {
/* '...' indicates a varargs function */
variadic = true;
- if (!parser_next(parser)) {
- parseerror(parser, "expected parameter");
- return NULL;
- }
- if (parser->tok != ')') {
+ if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
goto on_error;
}
+ if (parser->tok == TOKEN_IDENT) {
+ argcounter = util_strdup(parser_tokval(parser));
+ if (!parser_next(parser) || parser->tok != ')') {
+ parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
+ goto on_error;
+ }
+ }
}
else
{
parseerror(parser, "type not supported as part of a parameter list: %s", tname);
goto on_error;
}
+ /* type-restricted varargs */
+ if (parser->tok == TOKEN_DOTS) {
+ variadic = true;
+ varparam = vec_last(params);
+ vec_pop(params);
+ if (!parser_next(parser) || (parser->tok != ')' && parser->tok != TOKEN_IDENT)) {
+ parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
+ goto on_error;
+ }
+ if (parser->tok == TOKEN_IDENT) {
+ argcounter = util_strdup(parser_tokval(parser));
+ if (!parser_next(parser) || parser->tok != ')') {
+ parseerror(parser, "`...` must be the last parameter of a variadic function declaration");
+ goto on_error;
+ }
+ }
+ }
}
}
fval->expression.flags |= AST_FLAG_VARIADIC;
var = fval;
- var->expression.params = params;
+ var->expression.params = params;
+ var->expression.varparam = (ast_expression*)varparam;
+ var->argcounter = argcounter;
params = NULL;
return var;
on_error:
+ if (argcounter)
+ mem_d(argcounter);
ast_delete(var);
for (i = 0; i < vec_size(params); ++i)
ast_delete(params[i]);
return NULL;
}
- cexp = parse_expression_leave(parser, true);
+ cexp = parse_expression_leave(parser, true, false, false);
if (!cexp || !ast_istype(cexp, ast_value)) {
if (cexp)
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)
+static const char *cvq_to_str(int cvq) {
+ switch (cvq) {
+ case CV_NONE: return "none";
+ case CV_VAR: return "`var`";
+ case CV_CONST: return "`const`";
+ default: return "<INVALID>";
+ }
+}
+
+static bool parser_check_qualifiers(parser_t *parser, const ast_value *var, const ast_value *proto)
+{
+ bool av, ao;
+ if (proto->cvq != var->cvq) {
+ if (!(proto->cvq == CV_CONST && var->cvq == CV_NONE &&
+ !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
+ parser->tok == '='))
+ {
+ return !parsewarning(parser, WARN_DIFFERENT_QUALIFIERS,
+ "`%s` declared with different qualifiers: %s\n"
+ " -> previous declaration here: %s:%i uses %s",
+ var->name, cvq_to_str(var->cvq),
+ ast_ctx(proto).file, ast_ctx(proto).line,
+ cvq_to_str(proto->cvq));
+ }
+ }
+ av = (var ->expression.flags & AST_FLAG_NORETURN);
+ ao = (proto->expression.flags & AST_FLAG_NORETURN);
+ if (!av != !ao) {
+ return !parsewarning(parser, WARN_DIFFERENT_ATTRIBUTES,
+ "`%s` declared with different attributes%s\n"
+ " -> previous declaration here: %s:%i",
+ var->name, (av ? ": noreturn" : ""),
+ ast_ctx(proto).file, ast_ctx(proto).line,
+ (ao ? ": noreturn" : ""));
+ }
+ 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;
ast_value *proto;
}
var->cvq = qualifier;
- /* in a noref section we simply bump the usecount */
- if (noref || parser->noref)
- var->uses++;
var->expression.flags |= qflags;
+ if (var->expression.flags & AST_FLAG_DEPRECATED)
+ var->desc = vstring;
/* Part 1:
* check for validity: (end_sys_..., multiple-definitions, prototypes, ...)
goto cleanup;
*/
}
- if (opts.standard == COMPILER_QCC &&
+ if ((opts.standard == COMPILER_QCC || opts.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");
goto cleanup;
}
proto = (ast_value*)old;
+ proto->desc = var->desc;
if (!ast_compare_type((ast_expression*)proto, (ast_expression*)var)) {
parseerror(parser, "conflicting types for `%s`, previous declaration was here: %s:%i",
proto->name,
/* we need the new parameter-names */
for (i = 0; i < vec_size(proto->expression.params); ++i)
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)
+ mem_d(proto->desc);
+ proto = NULL;
+ goto cleanup;
+ }
+ proto->expression.flags |= var->expression.flags;
ast_delete(var);
var = proto;
}
{
/* other globals */
if (old) {
- if (opts.standard == COMPILER_GMQCC) {
- parseerror(parser, "global `%s` already declared here: %s:%i",
- var->name, ast_ctx(old).file, ast_ctx(old).line);
+ if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
+ "global `%s` already declared here: %s:%i",
+ var->name, ast_ctx(old).file, ast_ctx(old).line))
+ {
retval = false;
goto cleanup;
- } else {
- if (parsewarning(parser, WARN_DOUBLE_DECLARATION,
- "global `%s` already declared here: %s:%i",
- var->name, ast_ctx(old).file, ast_ctx(old).line))
- {
- retval = false;
- goto cleanup;
- }
- proto = (ast_value*)old;
- if (!ast_istype(old, ast_value)) {
- parseerror(parser, "internal error: not an ast_value");
- retval = false;
- proto = NULL;
- goto cleanup;
- }
- ast_delete(var);
- var = proto;
}
+ proto = (ast_value*)old;
+ if (!ast_istype(old, ast_value)) {
+ parseerror(parser, "internal error: not an ast_value");
+ retval = false;
+ proto = NULL;
+ goto cleanup;
+ }
+ if (!parser_check_qualifiers(parser, var, proto)) {
+ retval = false;
+ proto = NULL;
+ goto cleanup;
+ }
+ proto->expression.flags |= var->expression.flags;
+ ast_delete(var);
+ var = proto;
}
if (opts.standard == COMPILER_QCC &&
(old = parser_find_field(parser, var->name)))
}
}
+ /* in a noref section we simply bump the usecount */
+ if (noref || parser->noref)
+ var->uses++;
+
/* Part 2:
* Create the global/local, and deal with vector types.
*/
}
}
else {
- vec_push(parser->globals, (ast_expression*)var);
- util_htset(parser->htglobals, var->name, var);
+ parser_addglobal(parser, var->name, (ast_expression*)var);
if (isvector) {
for (i = 0; i < 3; ++i) {
- vec_push(parser->globals, (ast_expression*)me[i]);
- util_htset(parser->htglobals, me[i]->name, me[i]);
+ parser_addglobal(parser, me[i]->name, (ast_expression*)me[i]);
}
}
}
/* Add it to the local scope */
util_htset(vec_last(parser->variables), var->name, (void*)var);
+
+ /* corrector */
+ correct_add (
+ vec_last(parser->correct_variables),
+ &vec_last(parser->correct_variables_score),
+ var->name
+ );
+
/* now rename the global */
ln = strlen(var->name);
vec_append(defname, ln, var->name);
for (i = 0; i < 3; ++i) {
util_htset(vec_last(parser->variables), me[i]->name, (void*)(me[i]));
+ /* corrector */
+ correct_add(
+ vec_last(parser->correct_variables),
+ &vec_last(parser->correct_variables_score),
+ me[i]->name
+ );
+
vec_shrinkto(defname, prefix_len);
ln = strlen(me[i]->name);
vec_append(defname, ln, me[i]->name);
ast_expression *cexp;
ast_value *cval;
- cexp = parse_expression_leave(parser, true);
+ cexp = parse_expression_leave(parser, true, false, false);
if (!cexp)
break;
if (!localblock) {
cval = (ast_value*)cexp;
- if (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
+ if (cval != parser->nil &&
+ (!ast_istype(cval, ast_value) || ((!cval->hasvalue || cval->cvq != CV_CONST) && !cval->isfield))
+ )
+ {
parseerror(parser, "cannot initialize a global constant variable with a non-constant expression");
+ }
else
{
- if (opts.standard != COMPILER_GMQCC &&
- !OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
+ if (!OPTS_FLAG(INITIALIZED_NONCONSTANTS) &&
qualifier != CV_VAR)
{
var->cvq = CV_CONST;
}
- var->hasvalue = true;
- if (cval->expression.vtype == TYPE_STRING)
- var->constval.vstring = parser_strdup(cval->constval.vstring);
- else if (cval->expression.vtype == TYPE_FIELD)
- var->constval.vfield = cval;
+ if (cval == parser->nil)
+ var->expression.flags |= AST_FLAG_INITIALIZED;
else
- memcpy(&var->constval, &cval->constval, sizeof(var->constval));
- ast_unref(cval);
+ {
+ var->hasvalue = true;
+ if (cval->expression.vtype == TYPE_STRING)
+ var->constval.vstring = parser_strdup(cval->constval.vstring);
+ else if (cval->expression.vtype == TYPE_FIELD)
+ var->constval.vfield = cval;
+ else
+ memcpy(&var->constval, &cval->constval, sizeof(var->constval));
+ ast_unref(cval);
+ }
}
} else {
int cvq;
bool is_static = false;
uint32_t qflags = 0;
ast_value *istype = NULL;
+ char *vstring = NULL;
if (parser->tok == TOKEN_IDENT)
istype = parser_find_typedef(parser, parser_tokval(parser), 0);
if (istype || parser->tok == TOKEN_TYPENAME || parser->tok == '.')
{
- return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0);
+ return parse_variable(parser, NULL, false, CV_NONE, istype, false, false, 0, NULL);
}
- else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags))
+ else if (parse_qualifiers(parser, false, &cvq, &noref, &is_static, &qflags, &vstring))
{
if (cvq == CV_WRONG)
return false;
- return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags);
+ return parse_variable(parser, NULL, true, cvq, NULL, noref, is_static, qflags, vstring);
+ }
+ else if (parser->tok == TOKEN_IDENT && !strcmp(parser_tokval(parser), "enum"))
+ {
+ return parse_enum(parser);
}
else if (parser->tok == TOKEN_KEYWORD)
{
vec_push(parser->typedefs, util_htnew(TYPEDEF_HT_SIZE));
vec_push(parser->_blocktypedefs, 0);
+ /* corrector */
+ vec_push(parser->correct_variables, correct_trie_new());
+ vec_push(parser->correct_variables_score, NULL);
+
empty_ctx.file = "<internal>";
empty_ctx.line = 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->const_vec[0] = ast_value_new(empty_ctx, "<vector.x>", TYPE_NOEXPR);
+ parser->const_vec[1] = ast_value_new(empty_ctx, "<vector.y>", TYPE_NOEXPR);
+ parser->const_vec[2] = ast_value_new(empty_ctx, "<vector.z>", TYPE_NOEXPR);
+
+ if (opts.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;
+ parser->reserved_version->expression.flags |= AST_FLAG_INCLUDE_DEF;
+ parser->reserved_version->constval.vstring = util_strdup(GMQCC_FULL_VERSION_STRING);
+ } else {
+ parser->reserved_version = NULL;
+ }
return true;
}
vec_free(parser->_blocklocals);
vec_free(parser->_locals);
+ /* corrector */
+ for (i = 0; i < vec_size(parser->correct_variables); ++i) {
+ correct_del(parser->correct_variables[i], parser->correct_variables_score[i]);
+ }
+ 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);
vec_free(parser->breaks);
vec_free(parser->continues);
+ ast_value_delete(parser->nil);
+
+ ast_value_delete(parser->const_vec[0]);
+ ast_value_delete(parser->const_vec[1]);
+ ast_value_delete(parser->const_vec[2]);
+
mem_d(parser);
}
return false;
}
}
+ /* Build function vararg accessor ast tree now before generating
+ * immediates, because the accessors may add new immediates
+ */
+ for (i = 0; i < vec_size(parser->functions); ++i) {
+ ast_function *f = parser->functions[i];
+ if (f->varargs) {
+ if (parser->max_param_count > vec_size(f->vtype->expression.params)) {
+ f->varargs->expression.count = parser->max_param_count - vec_size(f->vtype->expression.params);
+ if (!parser_create_array_setter_impl(parser, f->varargs)) {
+ con_out("failed to generate vararg setter for %s\n", f->name);
+ ir_builder_delete(ir);
+ return false;
+ }
+ if (!parser_create_array_getter_impl(parser, f->varargs)) {
+ con_out("failed to generate vararg getter for %s\n", f->name);
+ ir_builder_delete(ir);
+ return false;
+ }
+ } else {
+ ast_delete(f->varargs);
+ f->varargs = NULL;
+ }
+ }
+ }
+ /* Now we can generate immediates */
for (i = 0; i < vec_size(parser->imm_float); ++i) {
if (!ast_global_codegen(parser->imm_float[i], ir, false)) {
con_out("failed to generate global %s\n", parser->imm_float[i]->name);
if (!ast_istype(parser->globals[i], ast_value))
continue;
asvalue = (ast_value*)(parser->globals[i]);
- if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
- (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
- "uninitialized constant: `%s`",
- asvalue->name);
- else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
- (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
- "uninitialized global: `%s`",
- asvalue->name);
+ if (!(asvalue->expression.flags & AST_FLAG_INITIALIZED))
+ {
+ if (asvalue->cvq == CV_CONST && !asvalue->hasvalue)
+ (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_CONSTANT,
+ "uninitialized constant: `%s`",
+ asvalue->name);
+ else if ((asvalue->cvq == CV_NONE || asvalue->cvq == CV_CONST) && !asvalue->hasvalue)
+ (void)!compile_warning(ast_ctx(asvalue), WARN_UNINITIALIZED_GLOBAL,
+ "uninitialized global: `%s`",
+ asvalue->name);
+ }
if (!ast_generate_accessors(asvalue, ir)) {
ir_builder_delete(ir);
return false;
return false;
}
}
+ if (parser->reserved_version &&
+ !ast_global_codegen(parser->reserved_version, ir, false))
+ {
+ con_out("failed to generate reserved::version");
+ ir_builder_delete(ir);
+ return false;
+ }
for (i = 0; i < vec_size(parser->functions); ++i) {
- if (!ast_function_codegen(parser->functions[i], ir)) {
- con_out("failed to generate function %s\n", parser->functions[i]->name);
+ ast_function *f = parser->functions[i];
+ if (!ast_function_codegen(f, ir)) {
+ con_out("failed to generate function %s\n", f->name);
ir_builder_delete(ir);
return false;
}
projects / xonotic / gmqcc.git / blobdiff