diff options
Diffstat (limited to 'servers/rendering/shader_language.cpp')
| -rw-r--r-- | servers/rendering/shader_language.cpp | 439 |
1 files changed, 150 insertions, 289 deletions
diff --git a/servers/rendering/shader_language.cpp b/servers/rendering/shader_language.cpp index e3725043d9..2ec65b7ea8 100644 --- a/servers/rendering/shader_language.cpp +++ b/servers/rendering/shader_language.cpp @@ -34,22 +34,18 @@ #include "servers/rendering_server.h" static bool _is_text_char(CharType c) { - return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || (c >= '0' && c <= '9') || c == '_'; } static bool _is_number(CharType c) { - return (c >= '0' && c <= '9'); } static bool _is_hex(CharType c) { - return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F'); } String ShaderLanguage::get_operator_text(Operator p_op) { - static const char *op_names[OP_MAX] = { "==", "!=", "<", @@ -226,7 +222,6 @@ const char *ShaderLanguage::token_names[TK_MAX] = { }; String ShaderLanguage::get_token_text(Token p_token) { - String name = token_names[p_token.type]; if (p_token.type == TK_INT_CONSTANT || p_token.type == TK_REAL_CONSTANT) { name += "(" + rtos(p_token.constant) + ")"; @@ -240,7 +235,6 @@ String ShaderLanguage::get_token_text(Token p_token) { } ShaderLanguage::Token ShaderLanguage::_make_token(TokenType p_type, const StringName &p_text) { - Token tk; tk.type = p_type; tk.text = p_text; @@ -340,13 +334,11 @@ const ShaderLanguage::KeyWord ShaderLanguage::keyword_list[] = { }; ShaderLanguage::Token ShaderLanguage::_get_token() { - #define GETCHAR(m_idx) (((char_idx + m_idx) < code.length()) ? code[char_idx + m_idx] : CharType(0)) while (true) { char_idx++; switch (GETCHAR(-1)) { - case 0: return _make_token(TK_EOF); case 0xFFFF: @@ -359,7 +351,6 @@ ShaderLanguage::Token ShaderLanguage::_get_token() { tk_line++; continue; case '/': { - switch (GETCHAR(0)) { case '*': { // block comment @@ -407,7 +398,6 @@ ShaderLanguage::Token ShaderLanguage::_get_token() { continue; //a comment, continue to next token } break; case '=': { - if (GETCHAR(0) == '=') { char_idx++; return _make_token(TK_OP_EQUAL); @@ -496,7 +486,6 @@ ShaderLanguage::Token ShaderLanguage::_get_token() { return _make_token(TK_OP_BIT_AND); } break; case '|': { - if (GETCHAR(0) == '=') { char_idx++; return _make_token(TK_OP_ASSIGN_BIT_OR); @@ -508,7 +497,6 @@ ShaderLanguage::Token ShaderLanguage::_get_token() { } break; case '*': { - if (GETCHAR(0) == '=') { char_idx++; return _make_token(TK_OP_ASSIGN_MUL); @@ -516,12 +504,10 @@ ShaderLanguage::Token ShaderLanguage::_get_token() { return _make_token(TK_OP_MUL); } break; case '+': { - if (GETCHAR(0) == '=') { char_idx++; return _make_token(TK_OP_ASSIGN_ADD); } else if (GETCHAR(0) == '+') { - char_idx++; return _make_token(TK_OP_INCREMENT); } @@ -529,12 +515,10 @@ ShaderLanguage::Token ShaderLanguage::_get_token() { return _make_token(TK_OP_ADD); } break; case '-': { - if (GETCHAR(0) == '=') { char_idx++; return _make_token(TK_OP_ASSIGN_SUB); } else if (GETCHAR(0) == '-') { - char_idx++; return _make_token(TK_OP_DECREMENT); } @@ -542,7 +526,6 @@ ShaderLanguage::Token ShaderLanguage::_get_token() { return _make_token(TK_OP_SUB); } break; case '%': { - if (GETCHAR(0) == '=') { char_idx++; return _make_token(TK_OP_ASSIGN_MOD); @@ -551,7 +534,6 @@ ShaderLanguage::Token ShaderLanguage::_get_token() { return _make_token(TK_OP_MOD); } break; default: { - char_idx--; //go back one, since we have no idea what this is if (_is_number(GETCHAR(0)) || (GETCHAR(0) == '.' && _is_number(GETCHAR(1)))) { @@ -567,32 +549,38 @@ ShaderLanguage::Token ShaderLanguage::_get_token() { while (true) { if (GETCHAR(i) == '.') { - if (period_found || exponent_found || hexa_found || float_suffix_found) + if (period_found || exponent_found || hexa_found || float_suffix_found) { return _make_token(TK_ERROR, "Invalid numeric constant"); + } period_found = true; } else if (GETCHAR(i) == 'x') { - if (hexa_found || str.length() != 1 || str[0] != '0') + if (hexa_found || str.length() != 1 || str[0] != '0') { return _make_token(TK_ERROR, "Invalid numeric constant"); + } hexa_found = true; } else if (GETCHAR(i) == 'e') { - if (hexa_found || exponent_found || float_suffix_found) + if (hexa_found || exponent_found || float_suffix_found) { return _make_token(TK_ERROR, "Invalid numeric constant"); + } exponent_found = true; } else if (GETCHAR(i) == 'f') { - if (hexa_found || exponent_found) + if (hexa_found || exponent_found) { return _make_token(TK_ERROR, "Invalid numeric constant"); + } float_suffix_found = true; } else if (_is_number(GETCHAR(i))) { - if (float_suffix_found) + if (float_suffix_found) { return _make_token(TK_ERROR, "Invalid numeric constant"); + } } else if (hexa_found && _is_hex(GETCHAR(i))) { - } else if ((GETCHAR(i) == '-' || GETCHAR(i) == '+') && exponent_found) { - if (sign_found) + if (sign_found) { return _make_token(TK_ERROR, "Invalid numeric constant"); + } sign_found = true; - } else + } else { break; + } str += CharType(GETCHAR(i)); i++; @@ -648,10 +636,11 @@ ShaderLanguage::Token ShaderLanguage::_get_token() { char_idx += str.length(); Token tk; - if (period_found || exponent_found || float_suffix_found) + if (period_found || exponent_found || float_suffix_found) { tk.type = TK_REAL_CONSTANT; - else + } else { tk.type = TK_INT_CONSTANT; + } if (hexa_found) { tk.constant = (double)str.hex_to_int64(true); @@ -674,7 +663,6 @@ ShaderLanguage::Token ShaderLanguage::_get_token() { String str; while (_is_text_char(GETCHAR(0))) { - str += CharType(GETCHAR(0)); char_idx++; } @@ -684,9 +672,7 @@ ShaderLanguage::Token ShaderLanguage::_get_token() { int idx = 0; while (keyword_list[idx].text) { - if (str == keyword_list[idx].text) { - return _make_token(keyword_list[idx].token); } idx++; @@ -697,10 +683,11 @@ ShaderLanguage::Token ShaderLanguage::_get_token() { return _make_token(TK_IDENTIFIER, str); } - if (GETCHAR(0) > 32) + if (GETCHAR(0) > 32) { return _make_token(TK_ERROR, "Tokenizer: Unknown character #" + itos(GETCHAR(0)) + ": '" + String::chr(GETCHAR(0)) + "'"); - else + } else { return _make_token(TK_ERROR, "Tokenizer: Unknown character #" + itos(GETCHAR(0))); + } } break; } @@ -712,7 +699,6 @@ ShaderLanguage::Token ShaderLanguage::_get_token() { } String ShaderLanguage::token_debug(const String &p_code) { - clear(); code = p_code; @@ -721,7 +707,6 @@ String ShaderLanguage::token_debug(const String &p_code) { Token tk = _get_token(); while (tk.type != TK_EOF && tk.type != TK_ERROR) { - output += itos(tk_line) + ": " + get_token_text(tk) + "\n"; tk = _get_token(); } @@ -754,7 +739,6 @@ bool ShaderLanguage::is_token_variable_datatype(TokenType p_type) { } bool ShaderLanguage::is_token_datatype(TokenType p_type) { - return ( p_type == TK_TYPE_VOID || p_type == TK_TYPE_BOOL || @@ -790,27 +774,24 @@ bool ShaderLanguage::is_token_datatype(TokenType p_type) { } ShaderLanguage::DataType ShaderLanguage::get_token_datatype(TokenType p_type) { - return DataType(p_type - TK_TYPE_VOID); } bool ShaderLanguage::is_token_interpolation(TokenType p_type) { - return ( p_type == TK_INTERPOLATION_FLAT || p_type == TK_INTERPOLATION_SMOOTH); } ShaderLanguage::DataInterpolation ShaderLanguage::get_token_interpolation(TokenType p_type) { - - if (p_type == TK_INTERPOLATION_FLAT) + if (p_type == TK_INTERPOLATION_FLAT) { return INTERPOLATION_FLAT; - else + } else { return INTERPOLATION_SMOOTH; + } } bool ShaderLanguage::is_token_precision(TokenType p_type) { - return ( p_type == TK_PRECISION_LOW || p_type == TK_PRECISION_MID || @@ -818,13 +799,13 @@ bool ShaderLanguage::is_token_precision(TokenType p_type) { } ShaderLanguage::DataPrecision ShaderLanguage::get_token_precision(TokenType p_type) { - - if (p_type == TK_PRECISION_LOW) + if (p_type == TK_PRECISION_LOW) { return PRECISION_LOWP; - else if (p_type == TK_PRECISION_HIGH) + } else if (p_type == TK_PRECISION_HIGH) { return PRECISION_HIGHP; - else + } else { return PRECISION_MEDIUMP; + } } String ShaderLanguage::get_precision_name(DataPrecision p_type) { @@ -842,9 +823,7 @@ String ShaderLanguage::get_precision_name(DataPrecision p_type) { } String ShaderLanguage::get_datatype_name(DataType p_type) { - switch (p_type) { - case TYPE_VOID: return "void"; case TYPE_BOOL: @@ -917,12 +896,10 @@ String ShaderLanguage::get_datatype_name(DataType p_type) { } bool ShaderLanguage::is_token_nonvoid_datatype(TokenType p_type) { - return is_token_datatype(p_type) && p_type != TK_TYPE_VOID; } void ShaderLanguage::clear() { - current_function = StringName(); completion_type = COMPLETION_NONE; @@ -944,9 +921,7 @@ void ShaderLanguage::clear() { } bool ShaderLanguage::_find_identifier(const BlockNode *p_block, bool p_allow_reassign, const Map<StringName, BuiltInInfo> &p_builtin_types, const StringName &p_identifier, DataType *r_data_type, IdentifierType *r_type, bool *r_is_const, int *r_array_size, StringName *r_struct_name) { - if (p_builtin_types.has(p_identifier)) { - if (r_data_type) { *r_data_type = p_builtin_types[p_identifier].type; } @@ -963,7 +938,6 @@ bool ShaderLanguage::_find_identifier(const BlockNode *p_block, bool p_allow_rea FunctionNode *function = nullptr; while (p_block) { - if (p_block->variables.has(p_identifier)) { if (r_data_type) { *r_data_type = p_block->variables[p_identifier].type; @@ -1050,9 +1024,9 @@ bool ShaderLanguage::_find_identifier(const BlockNode *p_block, bool p_allow_rea } for (int i = 0; i < shader->functions.size(); i++) { - - if (!shader->functions[i].callable) + if (!shader->functions[i].callable) { continue; + } if (shader->functions[i].name == p_identifier) { if (r_data_type) { @@ -1069,7 +1043,6 @@ bool ShaderLanguage::_find_identifier(const BlockNode *p_block, bool p_allow_rea } bool ShaderLanguage::_validate_operator(OperatorNode *p_op, DataType *r_ret_type) { - bool valid = false; DataType ret_type = TYPE_VOID; @@ -1102,7 +1075,6 @@ bool ShaderLanguage::_validate_operator(OperatorNode *p_op, DataType *r_ret_type } break; case OP_NOT: { - DataType na = p_op->arguments[0]->get_datatype(); valid = na == TYPE_BOOL; ret_type = TYPE_BOOL; @@ -1241,7 +1213,6 @@ bool ShaderLanguage::_validate_operator(OperatorNode *p_op, DataType *r_ret_type case OP_ASSIGN_SHIFT_RIGHT: case OP_SHIFT_LEFT: case OP_SHIFT_RIGHT: { - DataType na = p_op->arguments[0]->get_datatype(); DataType nb = p_op->arguments[1]->get_datatype(); @@ -1303,7 +1274,6 @@ bool ShaderLanguage::_validate_operator(OperatorNode *p_op, DataType *r_ret_type case OP_ASSIGN_SUB: case OP_ASSIGN_MUL: case OP_ASSIGN_DIV: { - DataType na = p_op->arguments[0]->get_datatype(); DataType nb = p_op->arguments[1]->get_datatype(); @@ -1363,7 +1333,6 @@ bool ShaderLanguage::_validate_operator(OperatorNode *p_op, DataType *r_ret_type case OP_BIT_AND: case OP_BIT_OR: case OP_BIT_XOR: { - /* * The bitwise operators and (&), exclusive-or (^), and inclusive-or (|). The operands must be of type * signed or unsigned integers or integer vectors. The operands cannot be vectors of differing size. If @@ -1443,8 +1412,9 @@ bool ShaderLanguage::_validate_operator(OperatorNode *p_op, DataType *r_ret_type } } - if (r_ret_type) + if (r_ret_type) { *r_ret_type = ret_type; + } return valid; } @@ -2170,7 +2140,6 @@ const ShaderLanguage::BuiltinFuncOutArgs ShaderLanguage::builtin_func_out_args[] }; bool ShaderLanguage::_validate_function_call(BlockNode *p_block, const Map<StringName, BuiltInInfo> &p_builtin_types, OperatorNode *p_func, DataType *r_ret_type, StringName *r_ret_type_str) { - ERR_FAIL_COND_V(p_func->op != OP_CALL && p_func->op != OP_CONSTRUCT, false); Vector<DataType> args; @@ -2196,18 +2165,15 @@ bool ShaderLanguage::_validate_function_call(BlockNode *p_block, const Map<Strin int idx = 0; while (builtin_func_defs[idx].name) { - if (completion_class != builtin_func_defs[idx].tag) { idx++; continue; } if (name == builtin_func_defs[idx].name) { - failed_builtin = true; bool fail = false; for (int i = 0; i < argcount; i++) { - if (get_scalar_type(args[i]) == args[i] && p_func->arguments[i + 1]->type == Node::TYPE_CONSTANT && convert_constant(static_cast<ConstantNode *>(p_func->arguments[i + 1]), builtin_func_defs[idx].args[i])) { //all good, but needs implicit conversion later } else if (args[i] != builtin_func_defs[idx].args[i]) { @@ -2226,20 +2192,18 @@ bool ShaderLanguage::_validate_function_call(BlockNode *p_block, const Map<Strin } } - if (!fail && argcount < 4 && builtin_func_defs[idx].args[argcount] != TYPE_VOID) + if (!fail && argcount < 4 && builtin_func_defs[idx].args[argcount] != TYPE_VOID) { fail = true; //make sure the number of arguments matches + } if (!fail) { - //make sure its not an out argument used in the wrong way int outarg_idx = 0; while (builtin_func_out_args[outarg_idx].name) { - if (String(name) == builtin_func_out_args[outarg_idx].name) { int arg_idx = builtin_func_out_args[outarg_idx].argument; if (arg_idx < argcount) { - if (p_func->arguments[arg_idx + 1]->type != Node::TYPE_VARIABLE && p_func->arguments[arg_idx + 1]->type != Node::TYPE_MEMBER && p_func->arguments[arg_idx + 1]->type != Node::TYPE_ARRAY) { _set_error("Argument " + itos(arg_idx + 1) + " of function '" + String(name) + "' is not a variable, array or member."); return false; @@ -2327,7 +2291,6 @@ bool ShaderLanguage::_validate_function_call(BlockNode *p_block, const Map<Strin } //implicitly convert values if possible for (int i = 0; i < argcount; i++) { - if (get_scalar_type(args[i]) != args[i] || args[i] == builtin_func_defs[idx].args[i] || p_func->arguments[i + 1]->type != Node::TYPE_CONSTANT) { //can't do implicit conversion here continue; @@ -2344,8 +2307,9 @@ bool ShaderLanguage::_validate_function_call(BlockNode *p_block, const Map<Strin p_func->arguments.write[i + 1] = conversion; } - if (r_ret_type) + if (r_ret_type) { *r_ret_type = builtin_func_defs[idx].rettype; + } return true; } @@ -2356,7 +2320,6 @@ bool ShaderLanguage::_validate_function_call(BlockNode *p_block, const Map<Strin } if (unsupported_builtin) { - String arglist = ""; for (int i = 0; i < argcount; i++) { if (i > 0) { @@ -2373,8 +2336,9 @@ bool ShaderLanguage::_validate_function_call(BlockNode *p_block, const Map<Strin if (failed_builtin) { String err = "Invalid arguments for built-in function: " + String(name) + "("; for (int i = 0; i < argcount; i++) { - if (i > 0) + if (i > 0) { err += ","; + } if (p_func->arguments[i + 1]->type == Node::TYPE_CONSTANT && p_func->arguments[i + 1]->get_datatype() == TYPE_INT && static_cast<ConstantNode *>(p_func->arguments[i + 1])->values[0].sint < 0) { err += "-"; @@ -2392,7 +2356,6 @@ bool ShaderLanguage::_validate_function_call(BlockNode *p_block, const Map<Strin BlockNode *block = p_block; while (block) { - if (block->parent_function) { exclude_function = block->parent_function->name; } @@ -2405,9 +2368,9 @@ bool ShaderLanguage::_validate_function_call(BlockNode *p_block, const Map<Strin } for (int i = 0; i < shader->functions.size(); i++) { - - if (name != shader->functions[i].name) + if (name != shader->functions[i].name) { continue; + } if (!shader->functions[i].callable) { _set_error("Function '" + String(name) + " can't be called from source code."); @@ -2416,8 +2379,9 @@ bool ShaderLanguage::_validate_function_call(BlockNode *p_block, const Map<Strin FunctionNode *pfunc = shader->functions[i].function; - if (pfunc->arguments.size() != args.size()) + if (pfunc->arguments.size() != args.size()) { continue; + } bool fail = false; @@ -2435,10 +2399,8 @@ bool ShaderLanguage::_validate_function_call(BlockNode *p_block, const Map<Strin } if (!fail) { - //implicitly convert values if possible for (int k = 0; k < args.size(); k++) { - if (get_scalar_type(args[k]) != args[k] || args[k] == pfunc->arguments[k].type || p_func->arguments[k + 1]->type != Node::TYPE_CONSTANT) { //can't do implicit conversion here continue; @@ -2482,7 +2444,6 @@ bool ShaderLanguage::_compare_datatypes_in_nodes(Node *a, Node *b) const { } bool ShaderLanguage::_parse_function_arguments(BlockNode *p_block, const Map<StringName, BuiltInInfo> &p_builtin_types, OperatorNode *p_func, int *r_complete_arg) { - TkPos pos = _get_tkpos(); Token tk = _get_token(); @@ -2493,16 +2454,13 @@ bool ShaderLanguage::_parse_function_arguments(BlockNode *p_block, const Map<Str _set_tkpos(pos); while (true) { - if (r_complete_arg) { pos = _get_tkpos(); tk = _get_token(); if (tk.type == TK_CURSOR) { - *r_complete_arg = p_func->arguments.size() - 1; } else { - _set_tkpos(pos); } } @@ -2510,7 +2468,6 @@ bool ShaderLanguage::_parse_function_arguments(BlockNode *p_block, const Map<Str Node *arg = _parse_and_reduce_expression(p_block, p_builtin_types); if (!arg) { - return false; } @@ -2519,7 +2476,6 @@ bool ShaderLanguage::_parse_function_arguments(BlockNode *p_block, const Map<Str tk = _get_token(); if (tk.type == TK_PARENTHESIS_CLOSE) { - return true; } else if (tk.type != TK_COMMA) { // something is broken @@ -2532,7 +2488,6 @@ bool ShaderLanguage::_parse_function_arguments(BlockNode *p_block, const Map<Str } bool ShaderLanguage::is_token_operator(TokenType p_type) { - return (p_type == TK_OP_EQUAL || p_type == TK_OP_NOT_EQUAL || p_type == TK_OP_LESS || @@ -2571,7 +2526,6 @@ bool ShaderLanguage::is_token_operator(TokenType p_type) { } bool ShaderLanguage::convert_constant(ConstantNode *p_constant, DataType p_to_type, ConstantNode::Value *p_value) { - if (p_constant->datatype == p_to_type) { if (p_value) { for (int i = 0; i < p_constant->values.size(); i++) { @@ -2580,13 +2534,11 @@ bool ShaderLanguage::convert_constant(ConstantNode *p_constant, DataType p_to_ty } return true; } else if (p_constant->datatype == TYPE_INT && p_to_type == TYPE_FLOAT) { - if (p_value) { p_value->real = p_constant->values[0].sint; } return true; } else if (p_constant->datatype == TYPE_UINT && p_to_type == TYPE_FLOAT) { - if (p_value) { p_value->real = p_constant->values[0].uint; } @@ -2600,7 +2552,6 @@ bool ShaderLanguage::convert_constant(ConstantNode *p_constant, DataType p_to_ty } return true; } else if (p_constant->datatype == TYPE_UINT && p_to_type == TYPE_INT) { - if (p_constant->values[0].uint > 0x7FFFFFFF) { return false; } @@ -2608,17 +2559,16 @@ bool ShaderLanguage::convert_constant(ConstantNode *p_constant, DataType p_to_ty p_value->sint = p_constant->values[0].uint; } return true; - } else + } else { return false; + } } bool ShaderLanguage::is_scalar_type(DataType p_type) { - return p_type == TYPE_BOOL || p_type == TYPE_INT || p_type == TYPE_UINT || p_type == TYPE_FLOAT; } bool ShaderLanguage::is_sampler_type(DataType p_type) { - return p_type == TYPE_SAMPLER2D || p_type == TYPE_ISAMPLER2D || p_type == TYPE_USAMPLER2D || @@ -2725,7 +2675,6 @@ Variant ShaderLanguage::constant_value_to_variant(const Vector<ShaderLanguage::C case ShaderLanguage::TYPE_USAMPLER3D: case ShaderLanguage::TYPE_SAMPLERCUBE: case ShaderLanguage::TYPE_SAMPLERCUBEARRAY: { - // Texture types, likely not relevant here. break; } @@ -2780,7 +2729,6 @@ PropertyInfo ShaderLanguage::uniform_to_property_info(const ShaderNode::Uniform case ShaderLanguage::TYPE_UVEC2: case ShaderLanguage::TYPE_UVEC3: case ShaderLanguage::TYPE_UVEC4: { - pi.type = Variant::PACKED_INT32_ARRAY; } break; case ShaderLanguage::TYPE_FLOAT: { @@ -2816,7 +2764,6 @@ PropertyInfo ShaderLanguage::uniform_to_property_info(const ShaderNode::Uniform case ShaderLanguage::TYPE_SAMPLER2D: case ShaderLanguage::TYPE_ISAMPLER2D: case ShaderLanguage::TYPE_USAMPLER2D: { - pi.type = Variant::OBJECT; pi.hint = PROPERTY_HINT_RESOURCE_TYPE; pi.hint_string = "Texture2D"; @@ -2824,7 +2771,6 @@ PropertyInfo ShaderLanguage::uniform_to_property_info(const ShaderNode::Uniform case ShaderLanguage::TYPE_SAMPLER2DARRAY: case ShaderLanguage::TYPE_ISAMPLER2DARRAY: case ShaderLanguage::TYPE_USAMPLER2DARRAY: { - pi.type = Variant::OBJECT; pi.hint = PROPERTY_HINT_RESOURCE_TYPE; pi.hint_string = "TextureLayered"; @@ -2838,7 +2784,6 @@ PropertyInfo ShaderLanguage::uniform_to_property_info(const ShaderNode::Uniform } break; case ShaderLanguage::TYPE_SAMPLERCUBE: case ShaderLanguage::TYPE_SAMPLERCUBEARRAY: { - pi.type = Variant::OBJECT; pi.hint = PROPERTY_HINT_RESOURCE_TYPE; pi.hint_string = "TextureLayered"; @@ -2904,13 +2849,11 @@ uint32_t ShaderLanguage::get_type_size(DataType p_type) { } void ShaderLanguage::get_keyword_list(List<String> *r_keywords) { - Set<String> kws; int idx = 0; while (keyword_list[idx].text) { - kws.insert(keyword_list[idx].text); idx++; } @@ -2918,7 +2861,6 @@ void ShaderLanguage::get_keyword_list(List<String> *r_keywords) { idx = 0; while (builtin_func_defs[idx].name) { - kws.insert(builtin_func_defs[idx].name); idx++; @@ -2930,13 +2872,11 @@ void ShaderLanguage::get_keyword_list(List<String> *r_keywords) { } void ShaderLanguage::get_builtin_funcs(List<String> *r_keywords) { - Set<String> kws; int idx = 0; while (builtin_func_defs[idx].name) { - kws.insert(builtin_func_defs[idx].name); idx++; @@ -2948,7 +2888,6 @@ void ShaderLanguage::get_builtin_funcs(List<String> *r_keywords) { } ShaderLanguage::DataType ShaderLanguage::get_scalar_type(DataType p_type) { - static const DataType scalar_types[] = { TYPE_VOID, TYPE_BOOL, @@ -3011,7 +2950,6 @@ int ShaderLanguage::get_cardinality(DataType p_type) { } bool ShaderLanguage::_get_completable_identifier(BlockNode *p_block, CompletionType p_type, StringName &identifier) { - identifier = StringName(); TkPos pos = { 0, 0 }; @@ -3025,7 +2963,6 @@ bool ShaderLanguage::_get_completable_identifier(BlockNode *p_block, CompletionT } if (tk.type == TK_CURSOR) { - completion_type = p_type; completion_line = tk_line; completion_block = p_block; @@ -3068,9 +3005,7 @@ bool ShaderLanguage::_is_operator_assign(Operator p_op) const { } bool ShaderLanguage::_validate_assign(Node *p_node, const Map<StringName, BuiltInInfo> &p_builtin_types, String *r_message) { - if (p_node->type == Node::TYPE_OPERATOR) { - OperatorNode *op = static_cast<OperatorNode *>(p_node); if (op->op == OP_INDEX) { @@ -3081,42 +3016,45 @@ bool ShaderLanguage::_validate_assign(Node *p_node, const Map<StringName, BuiltI return _validate_assign(op->arguments[1], p_builtin_types, r_message); } else if (op->op == OP_CALL) { - if (r_message) + if (r_message) { *r_message = RTR("Assignment to function."); + } return false; } } else if (p_node->type == Node::TYPE_MEMBER) { - MemberNode *member = static_cast<MemberNode *>(p_node); if (member->has_swizzling_duplicates) { - if (r_message) + if (r_message) { *r_message = RTR("Swizzling assignment contains duplicates."); + } return false; } return _validate_assign(member->owner, p_builtin_types, r_message); } else if (p_node->type == Node::TYPE_VARIABLE) { - VariableNode *var = static_cast<VariableNode *>(p_node); if (shader->uniforms.has(var->name)) { - if (r_message) + if (r_message) { *r_message = RTR("Assignment to uniform."); + } return false; } if (shader->varyings.has(var->name) && current_function != String("vertex")) { - if (r_message) + if (r_message) { *r_message = RTR("Varyings can only be assigned in vertex function."); + } return false; } if (shader->constants.has(var->name) || var->is_const) { - if (r_message) + if (r_message) { *r_message = RTR("Constants cannot be modified."); + } return false; } @@ -3124,33 +3062,34 @@ bool ShaderLanguage::_validate_assign(Node *p_node, const Map<StringName, BuiltI return true; } } else if (p_node->type == Node::TYPE_ARRAY) { - ArrayNode *arr = static_cast<ArrayNode *>(p_node); if (arr->is_const) { - if (r_message) + if (r_message) { *r_message = RTR("Constants cannot be modified."); + } return false; } if (shader->varyings.has(arr->name) && current_function != String("vertex")) { - if (r_message) + if (r_message) { *r_message = RTR("Varyings can only be assigned in vertex function."); + } return false; } return true; } - if (r_message) + if (r_message) { *r_message = "Assignment to constant expression."; + } return false; } bool ShaderLanguage::_propagate_function_call_sampler_uniform_settings(StringName p_name, int p_argument, TextureFilter p_filter, TextureRepeat p_repeat) { for (int i = 0; shader->functions.size(); i++) { if (shader->functions[i].name == p_name) { - ERR_FAIL_INDEX_V(p_argument, shader->functions[i].function->arguments.size(), false); FunctionNode::Argument *arg = &shader->functions[i].function->arguments.write[p_argument]; if (arg->tex_builtin_check) { @@ -3161,12 +3100,10 @@ bool ShaderLanguage::_propagate_function_call_sampler_uniform_settings(StringNam if (arg->tex_argument_filter == p_filter && arg->tex_argument_repeat == p_repeat) { return true; } else { - _set_error("Sampler argument #" + itos(p_argument) + " of function '" + String(p_name) + "' called more than once using textures that differ in either filter or repeat setting."); return false; } } else { - arg->tex_argument_check = true; arg->tex_argument_filter = p_filter; arg->tex_argument_repeat = p_repeat; @@ -3183,10 +3120,10 @@ bool ShaderLanguage::_propagate_function_call_sampler_uniform_settings(StringNam } ERR_FAIL_V(false); //bug? function not found } + bool ShaderLanguage::_propagate_function_call_sampler_builtin_reference(StringName p_name, int p_argument, const StringName &p_builtin) { for (int i = 0; shader->functions.size(); i++) { if (shader->functions[i].name == p_name) { - ERR_FAIL_INDEX_V(p_argument, shader->functions[i].function->arguments.size(), false); FunctionNode::Argument *arg = &shader->functions[i].function->arguments.write[p_argument]; if (arg->tex_argument_check) { @@ -3201,7 +3138,6 @@ bool ShaderLanguage::_propagate_function_call_sampler_builtin_reference(StringNa return false; } } else { - arg->tex_builtin_check = true; arg->tex_builtin = p_builtin; @@ -3220,13 +3156,11 @@ bool ShaderLanguage::_propagate_function_call_sampler_builtin_reference(StringNa } ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, const Map<StringName, BuiltInInfo> &p_builtin_types) { - Vector<Expression> expression; //Vector<TokenType> operators; while (true) { - Node *expr = nullptr; TkPos prepos = _get_tkpos(); Token tk = _get_token(); @@ -3238,19 +3172,18 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons //handle subexpression expr = _parse_and_reduce_expression(p_block, p_builtin_types); - if (!expr) + if (!expr) { return nullptr; + } tk = _get_token(); if (tk.type != TK_PARENTHESIS_CLOSE) { - _set_error("Expected ')' in expression"); return nullptr; } } else if (tk.type == TK_REAL_CONSTANT) { - ConstantNode *constant = alloc_node<ConstantNode>(); ConstantNode::Value v; v.real = tk.constant; @@ -3259,7 +3192,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons expr = constant; } else if (tk.type == TK_INT_CONSTANT) { - ConstantNode *constant = alloc_node<ConstantNode>(); ConstantNode::Value v; v.sint = tk.constant; @@ -3268,7 +3200,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons expr = constant; } else if (tk.type == TK_TRUE) { - //handle true constant ConstantNode *constant = alloc_node<ConstantNode>(); ConstantNode::Value v; @@ -3278,7 +3209,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons expr = constant; } else if (tk.type == TK_FALSE) { - //handle false constant ConstantNode *constant = alloc_node<ConstantNode>(); ConstantNode::Value v; @@ -3288,7 +3218,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons expr = constant; } else if (tk.type == TK_TYPE_VOID) { - //make sure void is not used in expression _set_error("Void value not allowed in Expression"); return nullptr; @@ -3299,7 +3228,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons func->op = OP_CONSTRUCT; if (is_token_precision(tk.type)) { - func->return_precision_cache = get_token_precision(tk.type); tk = _get_token(); } @@ -3326,8 +3254,9 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons completion_argument = carg; } - if (!ok) + if (!ok) { return nullptr; + } if (!_validate_function_call(p_block, p_builtin_types, func, &func->return_cache, &func->struct_name)) { _set_error("No matching constructor found for: '" + String(funcname->name) + "'"); @@ -3337,7 +3266,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons expr = _reduce_expression(p_block, func); } else if (tk.type == TK_IDENTIFIER) { - _set_tkpos(prepos); StringName identifier; @@ -3354,7 +3282,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons tk = _get_token(); if (tk.type == TK_PARENTHESIS_OPEN) { - if (struct_init) { //a struct constructor const StringName &name = identifier; @@ -3371,7 +3298,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons Node *nexpr; if (pstruct->members[i]->array_size != 0) { - DataType type = pstruct->members[i]->get_datatype(); String struct_name = pstruct->members[i]->struct_name; int array_size = pstruct->members[i]->array_size; @@ -3387,7 +3313,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons if (tk.type == TK_CURLY_BRACKET_OPEN) { auto_size = true; } else { - if (shader->structs.has(tk.text)) { type2 = TYPE_STRUCT; struct_name2 = tk.text; @@ -3470,7 +3395,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons if (tk.type == TK_PARENTHESIS_OPEN || auto_size) { // initialization while (true) { - Node *n = _parse_and_reduce_expression(p_block, p_builtin_types); if (!n) { return nullptr; @@ -3492,10 +3416,11 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons an->initializer.push_back(n); break; } else { - if (auto_size) + if (auto_size) { _set_error("Expected '}' or ','"); - else + } else { _set_error("Expected ')' or ','"); + } return nullptr; } } @@ -3590,8 +3515,9 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons completion_argument = carg; } - if (!ok) + if (!ok) { return nullptr; + } if (!_validate_function_call(p_block, p_builtin_types, func, &func->return_cache, &func->struct_name)) { _set_error("No matching function found for: '" + String(funcname->name) + "'"); @@ -3604,14 +3530,12 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons FunctionNode *call_function = shader->functions[function_index].function; if (call_function) { - //get current base function FunctionNode *base_function = nullptr; { BlockNode *b = p_block; while (b) { - if (b->parent_function) { base_function = b->parent_function; break; @@ -3733,7 +3657,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons return nullptr; } } else { - if (!_find_identifier(p_block, false, p_builtin_types, identifier, &data_type, &ident_type, &is_const, &array_size, &struct_name)) { _set_error("Unknown identifier in expression: " + String(identifier)); return nullptr; @@ -3761,14 +3684,16 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons p_block->block_tag = SubClassTag::TAG_ARRAY; call_expression = _parse_and_reduce_expression(p_block, p_builtin_types); p_block->block_tag = SubClassTag::TAG_GLOBAL; - if (!call_expression) + if (!call_expression) { return nullptr; + } data_type = call_expression->get_datatype(); } else { // indexing index_expression = _parse_and_reduce_expression(p_block, p_builtin_types); - if (!index_expression) + if (!index_expression) { return nullptr; + } if (index_expression->get_datatype() != TYPE_INT && index_expression->get_datatype() != TYPE_UINT) { _set_error("Only integer expressions are allowed for indexing"); @@ -3805,7 +3730,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons expr = arrname; } else { - VariableNode *varname = alloc_node<VariableNode>(); varname->name = identifier; varname->datatype_cache = data_type; @@ -3817,7 +3741,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons } else if (tk.type == TK_OP_ADD) { continue; //this one does nothing } else if (tk.type == TK_OP_SUB || tk.type == TK_OP_NOT || tk.type == TK_OP_BIT_INVERT || tk.type == TK_OP_INCREMENT || tk.type == TK_OP_DECREMENT) { - Expression e; e.is_op = true; @@ -3862,9 +3785,7 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons if (tk.type == TK_CURSOR) { //do nothing } else if (tk.type == TK_IDENTIFIER) { - } else if (tk.type == TK_PERIOD) { - DataType dt = expr->get_datatype(); String st = expr->get_datatype_name(); @@ -3919,7 +3840,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons case TYPE_IVEC2: case TYPE_UVEC2: case TYPE_VEC2: { - int l = ident.length(); if (l == 1) { member_type = DataType(dt - 1); @@ -3936,7 +3856,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons const CharType *c = ident.ptr(); for (int i = 0; i < l; i++) { - switch (c[i]) { case 'r': case 'g': @@ -3985,7 +3904,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons case TYPE_IVEC3: case TYPE_UVEC3: case TYPE_VEC3: { - int l = ident.length(); if (l == 1) { member_type = DataType(dt - 2); @@ -4002,7 +3920,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons const CharType *c = ident.ptr(); for (int i = 0; i < l; i++) { - switch (c[i]) { case 'r': case 'g': @@ -4054,7 +3971,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons case TYPE_IVEC4: case TYPE_UVEC4: case TYPE_VEC4: { - int l = ident.length(); if (l == 1) { member_type = DataType(dt - 3); @@ -4071,7 +3987,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons const CharType *c = ident.ptr(); for (int i = 0; i < l; i++) { - switch (c[i]) { case 'r': case 'g': @@ -4150,16 +4065,15 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons mn->has_swizzling_duplicates = repeated; if (array_size > 0) { - tk = _get_token(); if (tk.type == TK_PERIOD) { _set_error("Nested array length() is not yet implemented"); return nullptr; } else if (tk.type == TK_BRACKET_OPEN) { - Node *index_expression = _parse_and_reduce_expression(p_block, p_builtin_types); - if (!index_expression) + if (!index_expression) { return nullptr; + } if (index_expression->get_datatype() != TYPE_INT && index_expression->get_datatype() != TYPE_UINT) { _set_error("Only integer expressions are allowed for indexing"); @@ -4205,10 +4119,10 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons */ } else if (tk.type == TK_BRACKET_OPEN) { - Node *index = _parse_and_reduce_expression(p_block, p_builtin_types); - if (!index) + if (!index) { return nullptr; + } if (index->get_datatype() != TYPE_INT && index->get_datatype() != TYPE_UINT) { _set_error("Only integer datatypes are allowed for indexing"); @@ -4338,7 +4252,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons } } else if (tk.type == TK_OP_INCREMENT || tk.type == TK_OP_DECREMENT) { - OperatorNode *op = alloc_node<OperatorNode>(); op->op = tk.type == TK_OP_DECREMENT ? OP_POST_DECREMENT : OP_POST_INCREMENT; op->arguments.push_back(expr); @@ -4354,7 +4267,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons } expr = op; } else { - _set_tkpos(pos2); break; } @@ -4369,12 +4281,10 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons tk = _get_token(); if (is_token_operator(tk.type)) { - Expression o; o.is_op = true; switch (tk.type) { - case TK_OP_EQUAL: o.op = OP_EQUAL; break; @@ -4485,16 +4395,13 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons /* Reduce the set set of expressions and place them in an operator tree, respecting precedence */ while (expression.size() > 1) { - int next_op = -1; int min_priority = 0xFFFFF; bool is_unary = false; bool is_ternary = false; for (int i = 0; i < expression.size(); i++) { - if (!expression[i].is_op) { - continue; } @@ -4638,10 +4545,8 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons // OK! create operator.. // OK! create operator.. if (is_unary) { - int expr_pos = next_op; while (expression[expr_pos].is_op) { - expr_pos++; if (expr_pos == expression.size()) { //can happen.. @@ -4652,11 +4557,9 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons //consecutively do unary operators for (int i = expr_pos - 1; i >= next_op; i--) { - OperatorNode *op = alloc_node<OperatorNode>(); op->op = expression[i].op; if ((op->op == OP_INCREMENT || op->op == OP_DECREMENT) && !_validate_assign(expression[i + 1].node, p_builtin_types)) { - _set_error("Can't use increment/decrement operator in constant expression."); return nullptr; } @@ -4666,11 +4569,11 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons expression.write[i].node = op; if (!_validate_operator(op, &op->return_cache)) { - String at; for (int j = 0; j < op->arguments.size(); j++) { - if (j > 0) + if (j > 0) { at += " and "; + } at += get_datatype_name(op->arguments[j]->get_datatype()); } _set_error("Invalid arguments to unary operator '" + get_operator_text(op->op) + "' :" + at); @@ -4680,7 +4583,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons } } else if (is_ternary) { - if (next_op < 1 || next_op >= (expression.size() - 1)) { _set_error("Parser bug..."); ERR_FAIL_V(nullptr); @@ -4700,11 +4602,11 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons expression.write[next_op - 1].is_op = false; expression.write[next_op - 1].node = op; if (!_validate_operator(op, &op->return_cache)) { - String at; for (int i = 0; i < op->arguments.size(); i++) { - if (i > 0) + if (i > 0) { at += " and "; + } at += get_datatype_name(op->arguments[i]->get_datatype()); } _set_error("Invalid argument to ternary ?: operator: " + at); @@ -4716,7 +4618,6 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons } } else { - if (next_op < 1 || next_op >= (expression.size() - 1)) { _set_error("Parser bug..."); ERR_FAIL_V(nullptr); @@ -4726,16 +4627,13 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons op->op = expression[next_op].op; if (expression[next_op - 1].is_op) { - _set_error("Parser bug..."); ERR_FAIL_V(nullptr); } if (_is_operator_assign(op->op)) { - String assign_message; if (!_validate_assign(expression[next_op - 1].node, p_builtin_types, &assign_message)) { - _set_error(assign_message); return nullptr; } @@ -4757,11 +4655,11 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons //replace all 3 nodes by this operator and make it an expression if (!_validate_operator(op, &op->return_cache)) { - String at; for (int i = 0; i < op->arguments.size(); i++) { - if (i > 0) + if (i > 0) { at += " and "; + } if (op->arguments[i]->get_datatype() == TYPE_STRUCT) { at += op->arguments[i]->get_datatype_name(); } else { @@ -4781,15 +4679,14 @@ ShaderLanguage::Node *ShaderLanguage::_parse_expression(BlockNode *p_block, cons } ShaderLanguage::Node *ShaderLanguage::_reduce_expression(BlockNode *p_block, ShaderLanguage::Node *p_node) { - - if (p_node->type != Node::TYPE_OPERATOR) + if (p_node->type != Node::TYPE_OPERATOR) { return p_node; + } //for now only reduce simple constructors OperatorNode *op = static_cast<OperatorNode *>(p_node); if (op->op == OP_CONSTRUCT) { - ERR_FAIL_COND_V(op->arguments[0]->type != Node::TYPE_VARIABLE, p_node); DataType type = op->get_datatype(); @@ -4799,7 +4696,6 @@ ShaderLanguage::Node *ShaderLanguage::_reduce_expression(BlockNode *p_block, Sha Vector<ConstantNode::Value> values; for (int i = 1; i < op->arguments.size(); i++) { - op->arguments.write[i] = _reduce_expression(p_block, op->arguments[i]); if (op->arguments[i]->type == Node::TYPE_CONSTANT) { ConstantNode *cn = static_cast<ConstantNode *>(op->arguments[i]); @@ -4809,7 +4705,6 @@ ShaderLanguage::Node *ShaderLanguage::_reduce_expression(BlockNode *p_block, Sha values.push_back(cn->values[j]); } } else if (get_scalar_type(cn->datatype) == cn->datatype) { - ConstantNode::Value v; if (!convert_constant(cn, base, &v)) { return p_node; @@ -4853,10 +4748,8 @@ ShaderLanguage::Node *ShaderLanguage::_reduce_expression(BlockNode *p_block, Sha cn->values = values; return cn; } else if (op->op == OP_NEGATE) { - op->arguments.write[0] = _reduce_expression(p_block, op->arguments[0]); if (op->arguments[0]->type == Node::TYPE_CONSTANT) { - ConstantNode *cn = static_cast<ConstantNode *>(op->arguments[0]); DataType base = get_scalar_type(cn->datatype); @@ -4864,7 +4757,6 @@ ShaderLanguage::Node *ShaderLanguage::_reduce_expression(BlockNode *p_block, Sha Vector<ConstantNode::Value> values; for (int i = 0; i < cn->values.size(); i++) { - ConstantNode::Value nv; switch (base) { case TYPE_BOOL: { @@ -4896,10 +4788,10 @@ ShaderLanguage::Node *ShaderLanguage::_reduce_expression(BlockNode *p_block, Sha } ShaderLanguage::Node *ShaderLanguage::_parse_and_reduce_expression(BlockNode *p_block, const Map<StringName, BuiltInInfo> &p_builtin_types) { - ShaderLanguage::Node *expr = _parse_expression(p_block, p_builtin_types); - if (!expr) //errored + if (!expr) { //errored return nullptr; + } expr = _reduce_expression(p_block, expr); @@ -4907,9 +4799,7 @@ ShaderLanguage::Node *ShaderLanguage::_parse_and_reduce_expression(BlockNode *p_ } Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, BuiltInInfo> &p_builtin_types, bool p_just_one, bool p_can_break, bool p_can_continue) { - while (true) { - TkPos pos = _get_tkpos(); Token tk = _get_token(); @@ -4985,7 +4875,6 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui Node *vardecl = nullptr; while (true) { - if (tk.type != TK_IDENTIFIER) { _set_error("Expected identifier after type"); return ERR_PARSE_ERROR; @@ -5038,7 +4927,6 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui if (tk.type == TK_BRACKET_CLOSE) { unknown_size = true; } else { - if (tk.type != TK_INT_CONSTANT || ((int)tk.constant) <= 0) { _set_error("Expected integer constant > 0 or ']'"); return ERR_PARSE_ERROR; @@ -5058,7 +4946,6 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui tk = _get_token(); if (tk.type == TK_OP_ASSIGN) { - if (RenderingServer::get_singleton()->is_low_end()) { _set_error("Array initialization is supported only on high-end platform!"); return ERR_PARSE_ERROR; @@ -5067,7 +4954,6 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui tk = _get_token(); if (tk.type != TK_CURLY_BRACKET_OPEN) { - if (unknown_size) { _set_error("Expected '{'"); return ERR_PARSE_ERROR; @@ -5196,7 +5082,6 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui if (tk.type == TK_PARENTHESIS_OPEN || curly) { // initialization while (true) { - Node *n = _parse_and_reduce_expression(p_block, p_builtin_types); if (!n) { return ERR_PARSE_ERROR; @@ -5223,10 +5108,11 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui decl.initializer.push_back(n); break; } else { - if (curly) + if (curly) { _set_error("Expected '}' or ','"); - else + } else { _set_error("Expected ')' or ','"); + } return ERR_PARSE_ERROR; } } @@ -5252,7 +5138,6 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui node->declarations.push_back(decl); } else if (tk.type == TK_OP_ASSIGN) { - VariableDeclarationNode *node = alloc_node<VariableDeclarationNode>(); if (is_struct) { node->struct_name = struct_name; @@ -5270,8 +5155,9 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui //variable created with assignment! must parse an expression Node *n = _parse_and_reduce_expression(p_block, p_builtin_types); - if (!n) + if (!n) { return ERR_PARSE_ERROR; + } if (node->is_const && n->type == Node::TYPE_OPERATOR && ((OperatorNode *)n)->op == OP_CALL) { _set_error("Expected constant expression after '='"); return ERR_PARSE_ERROR; @@ -5343,8 +5229,9 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui ControlFlowNode *cf = alloc_node<ControlFlowNode>(); cf->flow_op = FLOW_OP_IF; Node *n = _parse_and_reduce_expression(p_block, p_builtin_types); - if (!n) + if (!n) { return ERR_PARSE_ERROR; + } if (n->get_datatype() != TYPE_BOOL) { _set_error("Expected boolean expression"); @@ -5364,13 +5251,13 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui p_block->statements.push_back(cf); Error err = _parse_block(block, p_builtin_types, true, p_can_break, p_can_continue); - if (err) + if (err) { return err; + } pos = _get_tkpos(); tk = _get_token(); if (tk.type == TK_CF_ELSE) { - block = alloc_node<BlockNode>(); block->parent_block = p_block; cf->blocks.push_back(block); @@ -5380,7 +5267,6 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui _set_tkpos(pos); //rollback } } else if (tk.type == TK_CF_SWITCH) { - if (RenderingServer::get_singleton()->is_low_end()) { _set_error("\"switch\" operator is supported only on high-end platform!"); return ERR_PARSE_ERROR; @@ -5395,8 +5281,9 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui ControlFlowNode *cf = alloc_node<ControlFlowNode>(); cf->flow_op = FLOW_OP_SWITCH; Node *n = _parse_and_reduce_expression(p_block, p_builtin_types); - if (!n) + if (!n) { return ERR_PARSE_ERROR; + } if (n->get_datatype() != TYPE_INT) { _set_error("Expected integer expression"); return ERR_PARSE_ERROR; @@ -5523,13 +5410,13 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui p_block->statements.push_back(cf); Error err = _parse_block(case_block, p_builtin_types, false, true, false); - if (err) + if (err) { return err; + } return OK; } else if (tk.type == TK_CF_DEFAULT) { - if (p_block && p_block->block_type == BlockNode::BLOCK_TYPE_CASE) { _set_tkpos(pos); return OK; @@ -5557,8 +5444,9 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui p_block->statements.push_back(cf); Error err = _parse_block(default_block, p_builtin_types, false, true, false); - if (err) + if (err) { return err; + } return OK; @@ -5569,13 +5457,13 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui BlockNode *do_block = nullptr; if (is_do) { - do_block = alloc_node<BlockNode>(); do_block->parent_block = p_block; Error err = _parse_block(do_block, p_builtin_types, true, true, true); - if (err) + if (err) { return err; + } tk = _get_token(); if (tk.type != TK_CF_WHILE) { @@ -5597,8 +5485,9 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui cf->flow_op = FLOW_OP_WHILE; } Node *n = _parse_and_reduce_expression(p_block, p_builtin_types); - if (!n) + if (!n) { return ERR_PARSE_ERROR; + } tk = _get_token(); if (tk.type != TK_PARENTHESIS_CLOSE) { @@ -5613,10 +5502,10 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui p_block->statements.push_back(cf); Error err = _parse_block(block, p_builtin_types, true, true, true); - if (err) + if (err) { return err; + } } else { - cf->expressions.push_back(n); cf->blocks.push_back(do_block); p_block->statements.push_back(cf); @@ -5648,8 +5537,9 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui } Node *n = _parse_and_reduce_expression(init_block, p_builtin_types); - if (!n) + if (!n) { return ERR_PARSE_ERROR; + } if (n->get_datatype() != TYPE_BOOL) { _set_error("Middle expression is expected to be boolean."); @@ -5665,8 +5555,9 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui cf->expressions.push_back(n); n = _parse_and_reduce_expression(init_block, p_builtin_types); - if (!n) + if (!n) { return ERR_PARSE_ERROR; + } cf->expressions.push_back(n); @@ -5682,11 +5573,11 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui p_block->statements.push_back(cf); Error err = _parse_block(block, p_builtin_types, true, true, true); - if (err) + if (err) { return err; + } } else if (tk.type == TK_CF_RETURN) { - //check return type BlockNode *b = p_block; while (b && !b->parent_function) { @@ -5712,8 +5603,9 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui } else { _set_tkpos(pos); //rollback, wants expression Node *expr = _parse_and_reduce_expression(p_block, p_builtin_types); - if (!expr) + if (!expr) { return ERR_PARSE_ERROR; + } if (b->parent_function->return_type != expr->get_datatype()) { _set_error("Expected return expression of type '" + get_datatype_name(b->parent_function->return_type) + "'"); @@ -5739,7 +5631,6 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui block = block->parent_block; } } else if (tk.type == TK_CF_DISCARD) { - //check return type BlockNode *b = p_block; while (b && !b->parent_function) { @@ -5767,7 +5658,6 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui p_block->statements.push_back(flow); } else if (tk.type == TK_CF_BREAK) { - if (!p_can_break) { //all is good _set_error("Breaking is not allowed here"); @@ -5794,7 +5684,6 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui } } else if (tk.type == TK_CF_CONTINUE) { - if (!p_can_continue) { //all is good _set_error("Continuing is not allowed here"); @@ -5813,12 +5702,12 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui p_block->statements.push_back(flow); } else { - //nothing else, so expression _set_tkpos(pos); //rollback Node *expr = _parse_and_reduce_expression(p_block, p_builtin_types); - if (!expr) + if (!expr) { return ERR_PARSE_ERROR; + } p_block->statements.push_back(expr); tk = _get_token(); @@ -5828,15 +5717,15 @@ Error ShaderLanguage::_parse_block(BlockNode *p_block, const Map<StringName, Bui } } - if (p_just_one) + if (p_just_one) { break; + } } return OK; } String ShaderLanguage::_get_shader_type_list(const Set<String> &p_shader_types) const { - // Return a list of shader types as an human-readable string String valid_types; for (const Set<String>::Element *E = p_shader_types.front(); E; E = E->next()) { @@ -5892,7 +5781,6 @@ Error ShaderLanguage::_validate_datatype(DataType p_type) { } Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_functions, const Vector<StringName> &p_render_modes, const Set<String> &p_shader_types) { - Token tk = _get_token(); if (tk.type != TK_SHADER_TYPE) { @@ -5930,12 +5818,9 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct ShaderNode::Uniform::Scope uniform_scope = ShaderNode::Uniform::SCOPE_LOCAL; while (tk.type != TK_EOF) { - switch (tk.type) { case TK_RENDER_MODE: { - while (true) { - StringName mode; _get_completable_identifier(nullptr, COMPLETION_RENDER_MODE, mode); @@ -6097,7 +5982,6 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct } break; case TK_GLOBAL: { - tk = _get_token(); if (tk.type != TK_UNIFORM) { _set_error("Expected 'uniform' after 'global'"); @@ -6119,7 +6003,6 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct [[fallthrough]]; case TK_UNIFORM: case TK_VARYING: { - bool uniform = tk.type == TK_UNIFORM; DataPrecision precision = PRECISION_DEFAULT; DataInterpolation interpolation = INTERPOLATION_SMOOTH; @@ -6173,7 +6056,6 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct } if (uniform) { - if (uniform_scope == ShaderNode::Uniform::SCOPE_GLOBAL) { //validate global uniform DataType gvtype = global_var_get_type_func(name); @@ -6253,7 +6135,6 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct } uniform2.hint = ShaderNode::Uniform::HINT_COLOR; } else if (tk.type == TK_HINT_RANGE) { - uniform2.hint = ShaderNode::Uniform::HINT_RANGE; if (type != TYPE_FLOAT && type != TYPE_INT) { _set_error("Range hint is for float and int only"); @@ -6332,7 +6213,6 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct return ERR_PARSE_ERROR; } } else if (tk.type == TK_HINT_INSTANCE_INDEX) { - if (custom_instance_index != -1) { _set_error("Can only specify 'instance_index' once."); return ERR_PARSE_ERROR; @@ -6414,10 +6294,10 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct //reset scope for next uniform if (tk.type == TK_OP_ASSIGN) { - Node *expr = _parse_and_reduce_expression(nullptr, Map<StringName, BuiltInInfo>()); - if (!expr) + if (!expr) { return ERR_PARSE_ERROR; + } if (expr->type != Node::TYPE_CONSTANT) { _set_error("Expected constant expression after '='"); return ERR_PARSE_ERROR; @@ -6443,7 +6323,6 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct return ERR_PARSE_ERROR; } } else { - ShaderNode::Varying varying; varying.type = type; varying.precision = precision; @@ -6509,7 +6388,6 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct is_struct = true; struct_name = tk.text; } else { - if (!is_token_datatype(tk.type)) { _set_error("Expected constant, function, uniform or varying"); return ERR_PARSE_ERROR; @@ -6569,7 +6447,6 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct constant.initializer = nullptr; if (tk.type == TK_OP_ASSIGN) { - if (!is_constant) { _set_error("Expected 'const' keyword before constant definition"); return ERR_PARSE_ERROR; @@ -6577,8 +6454,9 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct //variable created with assignment! must parse an expression Node *expr = _parse_and_reduce_expression(nullptr, Map<StringName, BuiltInInfo>()); - if (!expr) + if (!expr) { return ERR_PARSE_ERROR; + } if (expr->type == Node::TYPE_OPERATOR && ((OperatorNode *)expr)->op == OP_CALL) { _set_error("Expected constant expression after '='"); return ERR_PARSE_ERROR; @@ -6813,11 +6691,11 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct current_function = name; Error err = _parse_block(func_node->body, builtin_types); - if (err) + if (err) { return err; + } if (func_node->return_type != DataType::TYPE_VOID) { - BlockNode *block = func_node->body; if (_find_last_flow_op_in_block(block, FlowOperation::FLOW_OP_RETURN) != OK) { _set_error("Expected at least one return statement in a non-void function."); @@ -6835,7 +6713,6 @@ Error ShaderLanguage::_parse_shader(const Map<StringName, FunctionInfo> &p_funct } bool ShaderLanguage::has_builtin(const Map<StringName, ShaderLanguage::FunctionInfo> &p_functions, const StringName &p_name) { - if (p_functions.has("vertex")) { if (p_functions["vertex"].built_ins.has(p_name)) { return true; @@ -6855,7 +6732,6 @@ bool ShaderLanguage::has_builtin(const Map<StringName, ShaderLanguage::FunctionI } Error ShaderLanguage::_find_last_flow_op_in_op(ControlFlowNode *p_flow, FlowOperation p_op) { - bool found = false; for (int i = p_flow->blocks.size() - 1; i >= 0; i--) { @@ -6874,11 +6750,9 @@ Error ShaderLanguage::_find_last_flow_op_in_op(ControlFlowNode *p_flow, FlowOper } Error ShaderLanguage::_find_last_flow_op_in_block(BlockNode *p_block, FlowOperation p_op) { - bool found = false; for (int i = p_block->statements.size() - 1; i >= 0; i--) { - if (p_block->statements[i]->type == Node::TYPE_CONTROL_FLOW) { ControlFlowNode *flow = (ControlFlowNode *)p_block->statements[i]; if (flow->flow_op == p_op) { @@ -6907,7 +6781,6 @@ Error ShaderLanguage::_find_last_flow_op_in_block(BlockNode *p_block, FlowOperat // skips over whitespace and /* */ and // comments static int _get_first_ident_pos(const String &p_code) { - int idx = 0; #define GETCHAR(m_idx) (((idx + m_idx) < p_code.length()) ? p_code[idx + m_idx] : CharType(0)) @@ -6916,8 +6789,9 @@ static int _get_first_ident_pos(const String &p_code) { if (GETCHAR(0) == '/' && GETCHAR(1) == '/') { idx += 2; while (true) { - if (GETCHAR(0) == 0) + if (GETCHAR(0) == 0) { return 0; + } if (GETCHAR(0) == '\n') { idx++; break; // loop @@ -6927,8 +6801,9 @@ static int _get_first_ident_pos(const String &p_code) { } else if (GETCHAR(0) == '/' && GETCHAR(1) == '*') { idx += 2; while (true) { - if (GETCHAR(0) == 0) + if (GETCHAR(0) == 0) { return 0; + } if (GETCHAR(0) == '*' && GETCHAR(1) == '/') { idx += 2; break; // loop @@ -6953,13 +6828,11 @@ static int _get_first_ident_pos(const String &p_code) { } String ShaderLanguage::get_shader_type(const String &p_code) { - bool reading_type = false; String cur_identifier; for (int i = _get_first_ident_pos(p_code); i < p_code.length(); i++) { - if (p_code[i] == ';') { break; @@ -6981,14 +6854,14 @@ String ShaderLanguage::get_shader_type(const String &p_code) { } } - if (reading_type) + if (reading_type) { return cur_identifier; + } return String(); } Error ShaderLanguage::compile(const String &p_code, const Map<StringName, FunctionInfo> &p_functions, const Vector<StringName> &p_render_modes, const Set<String> &p_shader_types, GlobalVariableGetTypeFunc p_global_variable_type_func) { - clear(); code = p_code; @@ -7006,7 +6879,6 @@ Error ShaderLanguage::compile(const String &p_code, const Map<StringName, Functi } Error ShaderLanguage::complete(const String &p_code, const Map<StringName, FunctionInfo> &p_functions, const Vector<StringName> &p_render_modes, const Set<String> &p_shader_types, GlobalVariableGetTypeFunc p_global_variable_type_func, List<ScriptCodeCompletionOption> *r_options, String &r_call_hint) { - clear(); code = p_code; @@ -7018,7 +6890,6 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct _parse_shader(p_functions, p_render_modes, p_shader_types); switch (completion_type) { - case COMPLETION_NONE: { //do nothing return OK; @@ -7032,7 +6903,6 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct return OK; } break; case COMPLETION_STRUCT: { - if (shader->structs.has(completion_struct)) { StructNode *node = shader->structs[completion_struct].shader_struct; for (int i = 0; i < node->members.size(); i++) { @@ -7044,7 +6914,6 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct return OK; } break; case COMPLETION_MAIN_FUNCTION: { - for (const Map<StringName, FunctionInfo>::Element *E = p_functions.front(); E; E = E->next()) { ScriptCodeCompletionOption option(E->key(), ScriptCodeCompletionOption::KIND_FUNCTION); r_options->push_back(option); @@ -7054,7 +6923,6 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct } break; case COMPLETION_IDENTIFIER: case COMPLETION_FUNCTION_CALL: { - bool comp_ident = completion_type == COMPLETION_IDENTIFIER; Map<String, ScriptCodeCompletionOption::Kind> matches; StringName skip_function; @@ -7064,7 +6932,6 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct while (block) { if (comp_ident) { for (const Map<StringName, BlockNode::Variable>::Element *E = block->variables.front(); E; E = E->next()) { - if (E->get().line < completion_line) { matches.insert(E->key(), ScriptCodeCompletionOption::KIND_VARIABLE); } @@ -7112,8 +6979,9 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct } for (int i = 0; i < shader->functions.size(); i++) { - if (!shader->functions[i].callable || shader->functions[i].name == skip_function) + if (!shader->functions[i].callable || shader->functions[i].name == skip_function) { continue; + } matches.insert(String(shader->functions[i].name), ScriptCodeCompletionOption::KIND_FUNCTION); } @@ -7156,12 +7024,11 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct return OK; } break; case COMPLETION_CALL_ARGUMENTS: { - for (int i = 0; i < shader->functions.size(); i++) { - if (!shader->functions[i].callable) + if (!shader->functions[i].callable) { continue; + } if (shader->functions[i].name == completion_function) { - String calltip; calltip += get_datatype_name(shader->functions[i].function->return_type); @@ -7170,11 +7037,11 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct calltip += "("; for (int j = 0; j < shader->functions[i].function->arguments.size(); j++) { - - if (j > 0) + if (j > 0) { calltip += ", "; - else + } else { calltip += " "; + } if (j == completion_argument) { calltip += CharType(0xFFFF); @@ -7197,8 +7064,9 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct } } - if (shader->functions[i].function->arguments.size()) + if (shader->functions[i].function->arguments.size()) { calltip += " "; + } calltip += ")"; r_call_hint = calltip; @@ -7212,7 +7080,6 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct bool low_end = RenderingServer::get_singleton()->is_low_end(); while (builtin_func_defs[idx].name) { - if (low_end && builtin_func_defs[idx].high_end) { idx++; continue; @@ -7229,14 +7096,14 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct } if (completion_function == builtin_func_defs[idx].name) { - if (builtin_func_defs[idx].tag != completion_class) { idx++; continue; } - if (calltip.length()) + if (calltip.length()) { calltip += "\n"; + } calltip += get_datatype_name(builtin_func_defs[idx].rettype); calltip += " "; @@ -7245,14 +7112,15 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct bool found_arg = false; for (int i = 0; i < 4; i++) { - - if (builtin_func_defs[idx].args[i] == TYPE_VOID) + if (builtin_func_defs[idx].args[i] == TYPE_VOID) { break; + } - if (i > 0) + if (i > 0) { calltip += ", "; - else + } else { calltip += " "; + } if (i == completion_argument) { calltip += CharType(0xFFFF); @@ -7271,8 +7139,9 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct found_arg = true; } - if (found_arg) + if (found_arg) { calltip += " "; + } calltip += ")"; } idx++; @@ -7284,7 +7153,6 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct } break; case COMPLETION_INDEX: { - const char colv[4] = { 'r', 'g', 'b', 'a' }; const char coordv[4] = { 'x', 'y', 'z', 'w' }; const char coordt[4] = { 's', 't', 'p', 'q' }; @@ -7303,7 +7171,6 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct case TYPE_IVEC3: case TYPE_UVEC3: case TYPE_VEC3: { - limit = 3; } break; @@ -7311,7 +7178,6 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct case TYPE_IVEC4: case TYPE_UVEC4: case TYPE_VEC4: { - limit = 4; } break; @@ -7341,27 +7207,22 @@ Error ShaderLanguage::complete(const String &p_code, const Map<StringName, Funct } String ShaderLanguage::get_error_text() { - return error_str; } int ShaderLanguage::get_error_line() { - return error_line; } ShaderLanguage::ShaderNode *ShaderLanguage::get_shader() { - return shader; } ShaderLanguage::ShaderLanguage() { - nodes = nullptr; completion_class = TAG_GLOBAL; } ShaderLanguage::~ShaderLanguage() { - clear(); } |