From 20b8a191b1edfd023bbe6556f34c3f0688a6591c Mon Sep 17 00:00:00 2001 From: "Wolfgang (Blub) Bumiller" Date: Fri, 24 Aug 2012 17:23:47 +0200 Subject: [PATCH] parse_variable refactored, moved out the parsing of function bodies, easier memory handling --- parser.c | 805 ++++++++++++++++++++++++++++++------------------------- 1 file changed, 437 insertions(+), 368 deletions(-) diff --git a/parser.c b/parser.c index 5b06b9f..067e109 100644 --- a/parser.c +++ b/parser.c @@ -1910,25 +1910,351 @@ static bool create_vector_members(parser_t *parser, ast_value *var, varentry_t * --i; mem_d(ve[i].name); ast_delete(ve[i].var); + ve[i].name = NULL; + ve[i].var = NULL; } while (i); return false; } +static bool parse_function_body(parser_t *parser, ast_value *var) +{ + ast_block *block = NULL; + ast_function *func; + ast_function *old; + size_t parami; + + ast_expression *framenum = NULL; + ast_expression *nextthink = NULL; + /* None of the following have to be deleted */ + ast_expression *fld_think, *fld_nextthink, *fld_frame; + ast_expression *gbl_time, *gbl_self; + bool has_frame_think; + + bool retval = true; + + has_frame_think = false; + old = parser->function; + + if (var->expression.variadic) { + if (parsewarning(parser, WARN_VARIADIC_FUNCTION, + "variadic function with implementation will not be able to access additional parameters")) + { + return false; + } + } + + if (parser->tok == '[') { + /* got a frame definition: [ framenum, nextthink ] + * this translates to: + * self.frame = framenum; + * self.nextthink = time + 0.1; + * self.think = nextthink; + */ + nextthink = NULL; + + fld_think = parser_find_field(parser, "think"); + fld_nextthink = parser_find_field(parser, "nextthink"); + fld_frame = parser_find_field(parser, "frame"); + if (!fld_think || !fld_nextthink || !fld_frame) { + parseerror(parser, "cannot use [frame,think] notation without the required fields"); + parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`"); + return false; + } + gbl_time = parser_find_global(parser, "time"); + gbl_self = parser_find_global(parser, "self"); + if (!gbl_time || !gbl_self) { + parseerror(parser, "cannot use [frame,think] notation without the required globals"); + parseerror(parser, "please declare the following globals: `time`, `self`"); + return false; + } + + if (!parser_next(parser)) + return false; + + framenum = parse_expression_leave(parser, true); + if (!framenum) { + parseerror(parser, "expected a framenumber constant in[frame,think] notation"); + return false; + } + if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->isconst) { + ast_unref(framenum); + parseerror(parser, "framenumber in [frame,think] notation must be a constant"); + return false; + } + + if (parser->tok != ',') { + ast_unref(framenum); + parseerror(parser, "expected comma after frame number in [frame,think] notation"); + parseerror(parser, "Got a %i\n", parser->tok); + return false; + } + + if (!parser_next(parser)) { + ast_unref(framenum); + return false; + } + + if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser))) + { + /* qc allows the use of not-yet-declared functions here + * - this automatically creates a prototype */ + varentry_t varent; + ast_value *thinkfunc; + ast_expression *functype = fld_think->expression.next; + + thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.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; + } + + if (!parser_next(parser)) { + ast_unref(framenum); + ast_delete(thinkfunc); + return false; + } + + varent.var = (ast_expression*)thinkfunc; + varent.name = util_strdup(thinkfunc->name); + if (!parser_t_globals_add(parser, varent)) { + ast_unref(framenum); + ast_delete(thinkfunc); + return false; + } + nextthink = (ast_expression*)thinkfunc; + + } else { + nextthink = parse_expression_leave(parser, true); + if (!nextthink) { + ast_unref(framenum); + parseerror(parser, "expected a think-function in [frame,think] notation"); + return false; + } + } + + if (!ast_istype(nextthink, ast_value)) { + parseerror(parser, "think-function in [frame,think] notation must be a constant"); + retval = false; + } + + if (retval && parser->tok != ']') { + parseerror(parser, "expected closing `]` for [frame,think] notation"); + retval = false; + } + + if (retval && !parser_next(parser)) { + retval = false; + } + + if (retval && parser->tok != '{') { + parseerror(parser, "a function body has to be declared after a [frame,think] declaration"); + retval = false; + } + + if (!retval) { + ast_unref(nextthink); + ast_unref(framenum); + return false; + } + + has_frame_think = true; + } + + block = ast_block_new(parser_ctx(parser)); + if (!block) { + parseerror(parser, "failed to allocate block"); + if (has_frame_think) { + ast_unref(nextthink); + ast_unref(framenum); + } + return false; + } + + if (has_frame_think) { + lex_ctx ctx; + ast_expression *self_frame; + ast_expression *self_nextthink; + ast_expression *self_think; + ast_expression *time_plus_1; + ast_store *store_frame; + ast_store *store_nextthink; + ast_store *store_think; + + ctx = parser_ctx(parser); + self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame); + self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink); + self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think); + + time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, + gbl_time, (ast_expression*)parser_const_float(parser, 0.1)); + + if (!self_frame || !self_nextthink || !self_think || !time_plus_1) { + if (self_frame) ast_delete(self_frame); + if (self_nextthink) ast_delete(self_nextthink); + if (self_think) ast_delete(self_think); + if (time_plus_1) ast_delete(time_plus_1); + retval = false; + } + + if (retval) + { + store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum); + store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1); + store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink); + + if (!store_frame) { + ast_delete(self_frame); + retval = false; + } + if (!store_nextthink) { + ast_delete(self_nextthink); + retval = false; + } + if (!store_think) { + ast_delete(self_think); + retval = false; + } + if (!retval) { + if (store_frame) ast_delete(store_frame); + if (store_nextthink) ast_delete(store_nextthink); + if (store_think) ast_delete(store_think); + retval = false; + } + if (retval && !ast_block_exprs_add(block, (ast_expression*)store_frame)) { + ast_delete(store_frame); + ast_delete(store_nextthink); + ast_delete(store_think); + retval = false; + } + + if (retval && !ast_block_exprs_add(block, (ast_expression*)store_nextthink)) { + ast_delete(store_nextthink); + ast_delete(store_think); + retval = false; + } + + if (retval && !ast_block_exprs_add(block, (ast_expression*)store_think) ) + { + ast_delete(store_think); + retval = false; + } + } + + if (!retval) { + parseerror(parser, "failed to generate code for [frame,think]"); + ast_unref(nextthink); + ast_unref(framenum); + ast_delete(block); + return false; + } + } + + for (parami = 0; parami < var->expression.params_count; ++parami) { + size_t e; + varentry_t ve[3]; + ast_value *param = var->expression.params[parami]; + + if (param->expression.vtype != TYPE_VECTOR && + (param->expression.vtype != TYPE_FIELD || + param->expression.next->expression.vtype != TYPE_VECTOR)) + { + continue; + } + + if (!create_vector_members(parser, param, ve)) { + ast_block_delete(block); + return false; + } + + for (e = 0; e < 3; ++e) { + if (!parser_t_locals_add(parser, ve[e])) + break; + if (!ast_block_collect(block, ve[e].var)) { + parser->locals_count--; + break; + } + ve[e].var = NULL; /* collected */ + } + if (e != e) { + parser->locals -= e; + do { + mem_d(ve[e].name); + --e; + } while (e); + ast_block_delete(block); + return false; + } + } + + 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; + } + if (!parser_t_functions_add(parser, func)) { + parseerror(parser, "failed to allocate slot for function `%s`", var->name); + ast_block_delete(block); + goto enderrfn; + } + + parser->function = func; + if (!parse_block_into(parser, block, true)) { + ast_block_delete(block); + goto enderrfn; + } + + if (!ast_function_blocks_add(func, block)) { + ast_block_delete(block); + goto enderrfn; + } + + parser->function = old; + while (parser->locals_count) + retval = retval && parser_pop_local(parser); + + if (parser->tok == ';') + return parser_next(parser); + else if (opts_standard == COMPILER_QCC) + parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)"); + return retval; + +enderrfn: + ast_function_delete(func); + var->constval.vfunc = NULL; + +enderr: + while (parser->locals_count) { + parser->locals_count--; + mem_d(parser->locals[parser->locals_count].name); + } + parser->function = old; + return false; +} + static bool parse_variable(parser_t *parser, ast_block *localblock) { - bool isfunc = false; - lex_ctx ctx; - ast_value *var; - varentry_t varent; + bool isfunc = false; + lex_ctx ctx; + + ast_value *var = NULL; + bool cleanvar = false; + + varentry_t varent; + varentry_t ve[3]; + ast_expression *olddecl; - ast_value *typevar; + ast_value *typevar; bool hadproto; bool isparam; bool retval = true; + /* go */ + int basetype = parser_token(parser)->constval.t; if (!parser_next(parser)) { @@ -1942,33 +2268,36 @@ static bool parse_variable(parser_t *parser, ast_block *localblock) while (true) { - hadproto = false; - olddecl = NULL; - isparam = false; + hadproto = false; + olddecl = NULL; + isparam = false; + varent.name = NULL; + + ve[0].name = ve[1].name = ve[2].name = NULL; + ve[0].var = ve[1].var = ve[2].var = NULL; ctx = parser_ctx(parser); var = ast_value_copy(typevar); + cleanvar = true; if (!var) { - ast_delete(typevar); parseerror(parser, "failed to create variable"); - return false; + retval = false; + goto cleanup; } if (parser->tok != TOKEN_IDENT) { parseerror(parser, "expected variable name"); - ast_value_delete(typevar); - ast_value_delete(var); - return false; + retval = false; + goto cleanup; } if (!isfunc) { if (!localblock && (olddecl = parser_find_global(parser, parser_tokval(parser)))) { - ast_value_delete(typevar); - ast_value_delete(var); parseerror(parser, "global `%s` already declared here: %s:%i", parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line); - return false; + retval = false; + goto cleanup; } if (localblock) { @@ -1978,24 +2307,24 @@ static bool parse_variable(parser_t *parser, ast_block *localblock) if (olddecl) { if (!isparam) { - ast_value_delete(typevar); - ast_value_delete(var); parseerror(parser, "local `%s` already declared here: %s:%i", parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line); - return false; + retval = false; + goto cleanup; } } - if( (!isparam && olddecl) || (olddecl = parser_find_local(parser, parser_tokval(parser), 0, &isparam)) ) + if( (!isparam && olddecl) || + (olddecl = parser_find_local(parser, parser_tokval(parser), 0, &isparam)) + ) { if (parsewarning(parser, WARN_LOCAL_SHADOWS, "local `%s` is shadowing a parameter", parser_tokval(parser))) { - ast_value_delete(typevar); - ast_value_delete(var); parseerror(parser, "local `%s` already declared here: %s:%i", parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line); - return false; + retval = false; + goto cleanup; } } } @@ -2004,21 +2333,20 @@ static bool parse_variable(parser_t *parser, ast_block *localblock) if (olddecl) { ast_value_delete(var); + var = NULL; if (isparam && parsewarning(parser, WARN_LOCAL_SHADOWS, "a parameter is shadowing local `%s`", parser_tokval(parser))) { - ast_value_delete(typevar); - ast_value_delete(var); - return false; + retval = false; + goto cleanup; } else if (!isparam) { parseerror(parser, "local `%s` already declared here: %s:%i", parser_tokval(parser), ast_ctx(olddecl).file, (int)ast_ctx(olddecl).line); - ast_value_delete(typevar); - ast_value_delete(var); - return false; + retval = false; + goto cleanup; } goto nextvar; } @@ -2028,9 +2356,8 @@ static bool parse_variable(parser_t *parser, ast_block *localblock) if (!ast_value_set_name(var, parser_tokval(parser))) { parseerror(parser, "failed to set variable name\n"); - ast_value_delete(typevar); - ast_value_delete(var); - return false; + retval = false; + goto cleanup; } if (isfunc) { @@ -2047,16 +2374,13 @@ static bool parse_variable(parser_t *parser, ast_block *localblock) if (olddecl) { /* we had a prototype */ if (!ast_istype(olddecl, ast_value)) { - /* theoretically not possible you think? - * well: - * vector v; + /* vector v; * void() v_x = {} - * got it? */ parseerror(parser, "cannot declare a function with the same name as a vector's member: %s", parser_tokval(parser)); - ast_value_delete(var); - return false; + retval = false; + goto cleanup; } proto = (ast_value*)olddecl; @@ -2067,15 +2391,14 @@ static bool parse_variable(parser_t *parser, ast_block *localblock) */ fval = ast_value_new(ctx, var->name, TYPE_FUNCTION); if (!fval) { - ast_value_delete(var); - ast_value_delete(typevar); - if (fval) ast_value_delete(fval); - return false; + retval = false; + goto cleanup; } fval->expression.next = (ast_expression*)var; MEM_VECTOR_MOVE(&var->expression, params, &fval->expression, params); fval->expression.variadic = var->expression.variadic; + var = NULL; /* we compare the type late here, but it's easier than * messing with the parameter-vector etc. earlier @@ -2087,8 +2410,8 @@ static bool parse_variable(parser_t *parser, ast_block *localblock) proto->name, ast_ctx(proto).file, ast_ctx(proto).line); ast_value_delete(fval); - ast_value_delete(typevar); - return false; + retval = false; + goto cleanup; } /* copy over the parameter names */ for (param = 0; param < fval->expression.params_count; ++param) @@ -2108,82 +2431,76 @@ static bool parse_variable(parser_t *parser, ast_block *localblock) if (!hadproto) { varent.name = util_strdup(var->name); varent.var = (ast_expression*)var; + + if (!localblock) { + if (!(retval = parser_t_globals_add(parser, varent))) + goto cleanup; + } else { + if (!(retval = parser_t_locals_add(parser, varent))) + goto cleanup; + if (!(retval = ast_block_locals_add(localblock, var))) { + parser->locals_count--; + goto cleanup; + } + } + if (var->expression.vtype == TYPE_VECTOR) { - varentry_t ve[3]; + size_t e; if (!create_vector_members(parser, var, ve)) { - ast_delete(var); - ast_value_delete(typevar); - return false; + retval = false; + goto cleanup; } if (!localblock) { - (void)!parser_t_globals_add(parser, varent); - (void)!parser_t_globals_add(parser, ve[0]); - (void)!parser_t_globals_add(parser, ve[1]); - (void)!parser_t_globals_add(parser, ve[2]); + for (e = 0; e < 3; ++e) { + if (!(retval = parser_t_globals_add(parser, ve[e]))) + break; + } + if (!retval) { + parser->globals_count -= e+1; + goto cleanup; + } } else { - (void)!parser_t_locals_add(parser, varent); - (void)!parser_t_locals_add(parser, ve[0]); - (void)!parser_t_locals_add(parser, ve[1]); - (void)!parser_t_locals_add(parser, ve[2]); - if (!ast_block_locals_add(localblock, var) || - !ast_block_collect(localblock, ve[0].var) || - !ast_block_collect(localblock, ve[1].var) || - !ast_block_collect(localblock, ve[2].var)) - { - (void)!parser_pop_local(parser); - (void)!parser_pop_local(parser); - (void)!parser_pop_local(parser); - (void)!parser_pop_local(parser); - ast_value_delete(var); - ast_value_delete(typevar); - return false; + for (e = 0; e < 3; ++e) { + if (!(retval = parser_t_locals_add(parser, ve[e]))) + break; + if (!(retval = ast_block_collect(localblock, ve[e].var))) + break; + ve[e].var = NULL; /* from here it's being collected in the block */ + } + if (!retval) { + parser->locals_count -= e+1; + localblock->locals_count--; + goto cleanup; } } + ve[0].name = ve[1].name = ve[2].name = NULL; + ve[0].var = ve[1].var = ve[2].var = NULL; } - else - { - if ( (!localblock && !parser_t_globals_add(parser, varent)) || - ( localblock && !parser_t_locals_add(parser, varent)) ) - { - ast_value_delete(var); - ast_value_delete(typevar); - return false; - } - if (localblock && !ast_block_locals_add(localblock, var)) - { - (void)!parser_pop_local(parser); - ast_value_delete(var); - ast_value_delete(typevar); - return false; - } - } + cleanvar = false; + varent.name = NULL; } nextvar: - if (!parser_next(parser)) { - ast_value_delete(typevar); - ast_value_delete(var); - return false; - } + if (!(retval = parser_next(parser))) + goto cleanup; if (parser->tok == ';') { ast_value_delete(typevar); - if (!parser_next(parser)) - return false; - return true; + return parser_next(parser); } if (parser->tok == ',') { /* another var */ - if (!parser_next(parser)) { - ast_delete(typevar); - return false; - } + if (!(retval = parser_next(parser))) + goto cleanup; continue; } + /* NOTE: only 'typevar' needs to be deleted from here on, so 'cleanup' won't be used + * to avoid having too many gotos + */ if (localblock && opts_standard == COMPILER_QCC) { if (parsewarning(parser, WARN_LOCAL_CONSTANTS, "initializing expression turns variable `%s` into a constant in this standard", @@ -2195,8 +2512,11 @@ nextvar: } if (parser->tok != '=') { + if (opts_standard == COMPILER_QCC) + parseerror(parser, "missing semicolon"); + else + parseerror(parser, "missing semicolon or initializer"); ast_value_delete(typevar); - parseerror(parser, "expected '=' or ';'"); return false; } @@ -2254,283 +2574,19 @@ nextvar: ast_value_delete(typevar); return false; } - } else if (parser->tok == '{' || parser->tok == '[') { - /* function body */ - ast_function *func; - ast_function *old; - ast_block *block; - size_t parami; - - ast_expression *fld_think, *fld_nextthink, *fld_frame; - ast_expression *gbl_time, *gbl_self; - ast_expression *framenum, *nextthink; - bool has_frame_think; - - has_frame_think = false; - old = parser->function; - - if (var->expression.variadic) { - if (parsewarning(parser, WARN_VARIADIC_FUNCTION, - "variadic function with implementation will not be able to access additional parameters")) - { - ast_value_delete(typevar); - return false; - } - } - + } + else if (parser->tok == '{' || parser->tok == '[') + { + ast_value_delete(typevar); if (localblock) { parseerror(parser, "cannot declare functions within functions"); - ast_value_delete(typevar); - return false; - } - - if (parser->tok == '[') { - /* got a frame definition: [ framenum, nextthink ] - * this translates to: - * self.frame = framenum; - * self.nextthink = time + 0.1; - * self.think = nextthink; - */ - nextthink = NULL; - - fld_think = parser_find_field(parser, "think"); - fld_nextthink = parser_find_field(parser, "nextthink"); - fld_frame = parser_find_field(parser, "frame"); - if (!fld_think || !fld_nextthink || !fld_frame) { - parseerror(parser, "cannot use [frame,think] notation without the required fields"); - parseerror(parser, "please declare the following entityfields: `frame`, `think`, `nextthink`"); - ast_value_delete(typevar); - return false; - } - gbl_time = parser_find_global(parser, "time"); - gbl_self = parser_find_global(parser, "self"); - if (!gbl_time || !gbl_self) { - parseerror(parser, "cannot use [frame,think] notation without the required globals"); - parseerror(parser, "please declare the following globals: `time`, `self`"); - ast_value_delete(typevar); - return false; - } - - if (!parser_next(parser)) { - ast_value_delete(typevar); - return false; - } - - framenum = parse_expression_leave(parser, true); - if (!framenum) { - parseerror(parser, "expected a framenumber constant in[frame,think] notation"); - ast_value_delete(typevar); - return false; - } - if (!ast_istype(framenum, ast_value) || !( (ast_value*)framenum )->isconst) { - ast_unref(framenum); - parseerror(parser, "framenumber in [frame,think] notation must be a constant"); - } - - if (parser->tok != ',') { - ast_unref(framenum); - parseerror(parser, "expected comma after frame number in [frame,think] notation"); - parseerror(parser, "Got a %i\n", parser->tok); - ast_value_delete(typevar); - return false; - } - - if (!parser_next(parser)) { - ast_unref(framenum); - ast_value_delete(typevar); - return false; - } - - if (parser->tok == TOKEN_IDENT && !parser_find_var(parser, parser_tokval(parser))) - { - /* qc allows the use of not-yet-declared functions here - * - this automatically creates a prototype */ - varentry_t varent; - ast_value *thinkfunc; - ast_expression *functype = fld_think->expression.next; - - thinkfunc = ast_value_new(parser_ctx(parser), parser_tokval(parser), functype->expression.vtype); - if (!thinkfunc || !ast_type_adopt(thinkfunc, functype)) { - ast_unref(framenum); - parseerror(parser, "failed to create implicit prototype for `%s`", parser_tokval(parser)); - ast_value_delete(typevar); - return false; - } - - if (!parser_next(parser)) { - ast_unref(framenum); - ast_value_delete(typevar); - return false; - } - - varent.var = (ast_expression*)thinkfunc; - varent.name = util_strdup(thinkfunc->name); - (void)!parser_t_globals_add(parser, varent); - nextthink = (ast_expression*)thinkfunc; - - } else { - nextthink = parse_expression_leave(parser, true); - if (!nextthink) { - ast_unref(framenum); - parseerror(parser, "expected a think-function in [frame,think] notation"); - ast_value_delete(typevar); - return false; - } - } - - if (!ast_istype(nextthink, ast_value)) { - ast_unref(nextthink); - ast_unref(framenum); - parseerror(parser, "think-function in [frame,think] notation must be a constant"); - } - - if (parser->tok != ']') { - parseerror(parser, "expected closing `]` for [frame,think] notation"); - ast_unref(nextthink); - ast_unref(framenum); - ast_value_delete(typevar); - return false; - } - - if (!parser_next(parser)) { - ast_unref(nextthink); - ast_unref(framenum); - ast_value_delete(typevar); - return false; - } - - if (parser->tok != '{') { - parseerror(parser, "a function body has to be declared after a [frame,think] declaration"); - ast_unref(nextthink); - ast_unref(framenum); - ast_value_delete(typevar); - return false; - } - - has_frame_think = true; - } - - block = ast_block_new(parser_ctx(parser)); - if (!block) { - parseerror(parser, "failed to allocate block"); - ast_value_delete(typevar); - return false; - } - - if (has_frame_think) { - lex_ctx ctx; - ast_expression *self_frame; - ast_expression *self_nextthink; - ast_expression *self_think; - ast_expression *time_plus_1; - ast_store *store_frame; - ast_store *store_nextthink; - ast_store *store_think; - - ctx = parser_ctx(parser); - self_frame = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_frame); - self_nextthink = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_nextthink); - self_think = (ast_expression*)ast_entfield_new(ctx, gbl_self, fld_think); - - time_plus_1 = (ast_expression*)ast_binary_new(ctx, INSTR_ADD_F, - gbl_time, (ast_expression*)parser_const_float(parser, 0.1)); - - store_frame = ast_store_new(ctx, INSTR_STOREP_F, self_frame, framenum); - store_nextthink = ast_store_new(ctx, INSTR_STOREP_F, self_nextthink, time_plus_1); - store_think = ast_store_new(ctx, INSTR_STOREP_FNC, self_think, nextthink); - - if (!ast_block_exprs_add(block, (ast_expression*)store_frame) || - !ast_block_exprs_add(block, (ast_expression*)store_nextthink) || - !ast_block_exprs_add(block, (ast_expression*)store_think) ) - { - parseerror(parser, "failed to generate code for [frame,think]"); - ast_block_delete(block); - ast_value_delete(typevar); - return false; - } - } - - for (parami = 0; parami < var->expression.params_count; ++parami) { - ast_value *param = var->expression.params[parami]; - varentry_t ve[3]; - - if (param->expression.vtype != TYPE_VECTOR && - (param->expression.vtype != TYPE_FIELD || - param->expression.next->expression.vtype != TYPE_VECTOR)) - { - continue; - } - - if (!create_vector_members(parser, param, ve)) { - ast_block_delete(block); - ast_value_delete(typevar); - return false; - } - - (void)!parser_t_locals_add(parser, ve[0]); - (void)!parser_t_locals_add(parser, ve[1]); - (void)!parser_t_locals_add(parser, ve[2]); - if (!ast_block_collect(block, ve[0].var) || - !ast_block_collect(block, ve[1].var) || - !ast_block_collect(block, ve[2].var) ) - { - (void)!parser_pop_local(parser); - (void)!parser_pop_local(parser); - (void)!parser_pop_local(parser); - ast_block_delete(block); - ast_value_delete(typevar); - return false; - } - } - - 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); - parser->function = old; - ast_value_delete(typevar); - return false; - } - if (!parser_t_functions_add(parser, func)) { - parseerror(parser, "failed to allocate slot for function `%s`", var->name); - ast_function_delete(func); - var->constval.vfunc = NULL; - ast_value_delete(typevar); - ast_block_delete(block); - parser->function = old; return false; } - parser->function = func; - if (!parse_block_into(parser, block, true)) { - ast_block_delete(block); - parser->function = old; - ast_value_delete(typevar); - return false; - } - parser->function = old; - while (parser->locals_count) - retval = retval && parser_pop_local(parser); - - if (!block) { - ast_value_delete(typevar); - return false; - } - - if (!ast_function_blocks_add(func, block)) { - ast_block_delete(block); - ast_value_delete(typevar); + if (!parse_function_body(parser, var)) { return false; } - - if (parser->tok == ';') { - ast_value_delete(typevar); - return parser_next(parser) || parser->tok == TOKEN_EOF; - } - else if (opts_standard == COMPILER_QCC) - parseerror(parser, "missing semicolon after function body (mandatory with -std=qcc)"); - ast_value_delete(typevar); - return retval; + return true; } else { ast_expression *cexp; ast_value *cval; @@ -2571,6 +2627,19 @@ nextvar: ast_value_delete(typevar); return true; } + +cleanup: + ast_delete(typevar); + if (var && cleanvar) ast_delete(var); + if (varent.name) mem_d(varent.name); + if (ve[0].name) mem_d(ve[0].name); + if (ve[1].name) mem_d(ve[1].name); + if (ve[2].name) mem_d(ve[2].name); + if (ve[0].var) mem_d(ve[0].var); + if (ve[1].var) mem_d(ve[1].var); + if (ve[2].var) mem_d(ve[2].var); + + return retval; } static bool parser_global_statement(parser_t *parser) -- 2.39.2