diff options
Diffstat (limited to 'modules/gdscript/gd_parser.cpp')
| -rw-r--r-- | modules/gdscript/gd_parser.cpp | 293 |
1 files changed, 279 insertions, 14 deletions
diff --git a/modules/gdscript/gd_parser.cpp b/modules/gdscript/gd_parser.cpp index 76ddb5043..031f106df 100644 --- a/modules/gdscript/gd_parser.cpp +++ b/modules/gdscript/gd_parser.cpp @@ -5,7 +5,7 @@ /* GODOT ENGINE */ /* http://www.godotengine.org */ /*************************************************************************/ -/* Copyright (c) 2007-2016 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur. */ /* */ /* Permission is hereby granted, free of charge, to any person obtaining */ /* a copy of this software and associated documentation files (the */ @@ -121,6 +121,7 @@ bool GDParser::_parse_arguments(Node* p_parent,Vector<Node*>& p_args,bool p_stat tokenizer->advance(); } else { + parenthesis ++; int argidx=0; while(true) { @@ -165,6 +166,7 @@ bool GDParser::_parse_arguments(Node* p_parent,Vector<Node*>& p_args,bool p_stat } } + parenthesis --; } return true; @@ -223,8 +225,8 @@ bool GDParser::_get_completable_identifier(CompletionType p_type,StringName& ide GDParser::Node* GDParser::_parse_expression(Node *p_parent,bool p_static,bool p_allow_assign,bool p_parsing_constant) { -// Vector<Node*> expressions; -// Vector<OperatorNode::Operator> operators; + //Vector<Node*> expressions; + //Vector<OperatorNode::Operator> operators; Vector<Expression> expression; @@ -263,6 +265,98 @@ GDParser::Node* GDParser::_parse_expression(Node *p_parent,bool p_static,bool p_ tokenizer->advance(); expr=subexpr; + } else if (tokenizer->get_token()==GDTokenizer::TK_DOLLAR) { + tokenizer->advance(); + + String path; + + bool need_identifier=true; + bool done=false; + + while(!done) { + + switch(tokenizer->get_token()) { + case GDTokenizer::TK_CURSOR: { + completion_cursor=StringName(); + completion_type=COMPLETION_GET_NODE; + completion_class=current_class; + completion_function=current_function; + completion_line=tokenizer->get_token_line(); + completion_cursor=path; + completion_argument=0; + completion_block=current_block; + completion_found=true; + tokenizer->advance(); + } break; + case GDTokenizer::TK_CONSTANT: { + + if (!need_identifier) { + done=true; + break; + } + + if (tokenizer->get_token_constant().get_type()!=Variant::STRING) { + _set_error("Expected string constant or identifier after '$' or '/'."); + return NULL; + } + + path+=String(tokenizer->get_token_constant()); + tokenizer->advance(); + need_identifier=false; + + } break; + case GDTokenizer::TK_IDENTIFIER: { + if (!need_identifier) { + done=true; + break; + } + + path+=String(tokenizer->get_token_identifier()); + tokenizer->advance(); + need_identifier=false; + + } break; + case GDTokenizer::TK_OP_DIV: { + + if (need_identifier) { + done=true; + break; + } + + path+="/"; + tokenizer->advance(); + need_identifier=true; + + } break; + default: { + done=true; + break; + } + } + } + + if (path=="") { + _set_error("Path expected after $."); + return NULL; + + } + + OperatorNode *op = alloc_node<OperatorNode>(); + op->op=OperatorNode::OP_CALL; + + op->arguments.push_back(alloc_node<SelfNode>()); + + IdentifierNode *funcname = alloc_node<IdentifierNode>(); + funcname->name="get_node"; + + op->arguments.push_back(funcname); + + ConstantNode *nodepath = alloc_node<ConstantNode>(); + nodepath->value = NodePath(StringName(path)); + op->arguments.push_back(nodepath); + + expr=op; + } else if (tokenizer->get_token()==GDTokenizer::TK_CURSOR) { tokenizer->advance(); continue; //no point in cursor in the middle of expression @@ -364,18 +458,23 @@ GDParser::Node* GDParser::_parse_expression(Node *p_parent,bool p_static,bool p_ OperatorNode *yield = alloc_node<OperatorNode>(); yield->op=OperatorNode::OP_YIELD; + while (tokenizer->get_token()==GDTokenizer::TK_NEWLINE) { + tokenizer->advance(); + } + if (tokenizer->get_token()==GDTokenizer::TK_PARENTHESIS_CLOSE) { expr=yield; tokenizer->advance(); } else { + parenthesis ++; + Node *object = _parse_and_reduce_expression(p_parent,p_static); if (!object) return NULL; yield->arguments.push_back(object); if (tokenizer->get_token()!=GDTokenizer::TK_COMMA) { - _set_error("Expected ',' after first argument of 'yield'"); return NULL; } @@ -403,11 +502,12 @@ GDParser::Node* GDParser::_parse_expression(Node *p_parent,bool p_static,bool p_ yield->arguments.push_back(signal); if (tokenizer->get_token()!=GDTokenizer::TK_PARENTHESIS_CLOSE) { - _set_error("Expected ')' after second argument of 'yield'"); return NULL; } + parenthesis --; + tokenizer->advance(); expr=yield; @@ -532,14 +632,15 @@ GDParser::Node* GDParser::_parse_expression(Node *p_parent,bool p_static,bool p_ expr = id; } - } else if (/*tokenizer->get_token()==GDTokenizer::TK_OP_ADD ||*/ tokenizer->get_token()==GDTokenizer::TK_OP_SUB || tokenizer->get_token()==GDTokenizer::TK_OP_NOT || tokenizer->get_token()==GDTokenizer::TK_OP_BIT_INVERT) { + } else if (tokenizer->get_token()==GDTokenizer::TK_OP_ADD || tokenizer->get_token()==GDTokenizer::TK_OP_SUB || tokenizer->get_token()==GDTokenizer::TK_OP_NOT || tokenizer->get_token()==GDTokenizer::TK_OP_BIT_INVERT) { - //single prefix operators like !expr -expr ++expr --expr + //single prefix operators like !expr +expr -expr ++expr --expr alloc_node<OperatorNode>(); Expression e; e.is_op=true; switch(tokenizer->get_token()) { + case GDTokenizer::TK_OP_ADD: e.op=OperatorNode::OP_POS; break; case GDTokenizer::TK_OP_SUB: e.op=OperatorNode::OP_NEG; break; case GDTokenizer::TK_OP_NOT: e.op=OperatorNode::OP_NOT; break; case GDTokenizer::TK_OP_BIT_INVERT: e.op=OperatorNode::OP_BIT_INVERT;; break; @@ -987,6 +1088,7 @@ GDParser::Node* GDParser::_parse_expression(Node *p_parent,bool p_static,bool p_ case OperatorNode::OP_BIT_INVERT: priority=0; unary=true; break; case OperatorNode::OP_NEG: priority=1; unary=true; break; + case OperatorNode::OP_POS: priority=1; unary=true; break; case OperatorNode::OP_MUL: priority=2; break; case OperatorNode::OP_DIV: priority=2; break; @@ -1215,7 +1317,7 @@ GDParser::Node* GDParser::_reduce_expression(Node *p_node,bool p_to_const) { //reduce constant array expression ConstantNode *cn = alloc_node<ConstantNode>(); - Array arr(!p_to_const); + Array arr; //print_line("mk array "+itos(!p_to_const)); arr.resize(an->elements.size()); for(int i=0;i<an->elements.size();i++) { @@ -1250,7 +1352,7 @@ GDParser::Node* GDParser::_reduce_expression(Node *p_node,bool p_to_const) { //reduce constant array expression ConstantNode *cn = alloc_node<ConstantNode>(); - Dictionary dict(!p_to_const); + Dictionary dict; for(int i=0;i<dn->elements.size();i++) { ConstantNode *key_c = static_cast<ConstantNode*>(dn->elements[i].key); ConstantNode *value_c = static_cast<ConstantNode*>(dn->elements[i].value); @@ -1468,6 +1570,15 @@ GDParser::Node* GDParser::_reduce_expression(Node *p_node,bool p_to_const) { return op; } + if (op->arguments[0]->type==Node::TYPE_OPERATOR) { + OperatorNode *on = static_cast<OperatorNode*>(op->arguments[0]); + if (on->op != OperatorNode::OP_INDEX && on->op != OperatorNode::OP_INDEX_NAMED) { + _set_error("Can't assign to an expression",tokenizer->get_token_line()-1); + error_line=op->line; + return op; + } + } + } break; default: { break; } } @@ -1504,6 +1615,7 @@ GDParser::Node* GDParser::_reduce_expression(Node *p_node,bool p_to_const) { //unary operators case OperatorNode::OP_NEG: { _REDUCE_UNARY(Variant::OP_NEGATE); } break; + case OperatorNode::OP_POS: { _REDUCE_UNARY(Variant::OP_POSITIVE); } break; case OperatorNode::OP_NOT: { _REDUCE_UNARY(Variant::OP_NOT); } break; case OperatorNode::OP_BIT_INVERT: { _REDUCE_UNARY(Variant::OP_BIT_NEGATE); } break; //binary operators (in precedence order) @@ -2186,6 +2298,24 @@ void GDParser::_parse_block(BlockNode *p_block,bool p_static) { } StringName n = tokenizer->get_token_identifier(); tokenizer->advance(); + if (current_function){ + for (int i=0;i<current_function->arguments.size();i++){ + if (n == current_function->arguments[i]){ + _set_error("Variable '"+String(n)+"' already defined in the scope (at line: "+itos(current_function->line)+")."); + return; + } + } + } + BlockNode *check_block = p_block; + while (check_block){ + for (int i=0;i<check_block->variables.size();i++){ + if (n == check_block->variables[i]){ + _set_error("Variable '"+String(n)+"' already defined in the scope (at line: "+itos(check_block->variable_lines[i])+")."); + return; + } + } + check_block = check_block->parent_block; + } p_block->variables.push_back(n); //line? p_block->variable_lines.push_back(tokenizer->get_token_line()); @@ -2241,6 +2371,7 @@ void GDParser::_parse_block(BlockNode *p_block,bool p_static) { case GDTokenizer::TK_CF_IF: { tokenizer->advance(); + Node *condition = _parse_and_reduce_expression(p_block,p_static); if (!condition) { if (_recover_from_completion()) { @@ -2427,6 +2558,64 @@ void GDParser::_parse_block(BlockNode *p_block,bool p_static) { return; } + if (container->type==Node::TYPE_OPERATOR) { + + OperatorNode* op = static_cast<OperatorNode*>(container); + if (op->op==OperatorNode::OP_CALL && op->arguments[0]->type==Node::TYPE_BUILT_IN_FUNCTION && static_cast<BuiltInFunctionNode*>(op->arguments[0])->function==GDFunctions::GEN_RANGE) { + //iterating a range, so see if range() can be optimized without allocating memory, by replacing it by vectors (which can work as iterable too!) + + Vector<Node*> args; + Vector<double> constants; + + bool constant=true; + + for(int i=1;i<op->arguments.size();i++) { + args.push_back(op->arguments[i]); + if (constant && op->arguments[i]->type==Node::TYPE_CONSTANT) { + ConstantNode *c = static_cast<ConstantNode*>(op->arguments[i]); + if (c->value.get_type()==Variant::REAL || c->value.get_type()==Variant::INT) { + constants.push_back(c->value); + } else { + constant=false; + } + } + } + + if (args.size()>0 || args.size()<4) { + + if (constant) { + + ConstantNode *cn = alloc_node<ConstantNode>(); + switch(args.size()) { + case 1: cn->value=constants[0]; break; + case 2: cn->value=Vector2(constants[0],constants[1]); break; + case 3: cn->value=Vector3(constants[0],constants[1],constants[2]); break; + } + container=cn; + } else { + OperatorNode *on = alloc_node<OperatorNode>(); + on->op=OperatorNode::OP_CALL; + + TypeNode *tn = alloc_node<TypeNode>(); + on->arguments.push_back(tn); + + switch(args.size()) { + case 1: tn->vtype=Variant::REAL; break; + case 2: tn->vtype=Variant::VECTOR2; break; + case 3: tn->vtype=Variant::VECTOR3; break; + } + + for(int i=0;i<args.size();i++) { + on->arguments.push_back(args[i]); + } + + container=on; + } + } + } + + } + ControlFlowNode *cf_for = alloc_node<ControlFlowNode>(); cf_for->cf_type=ControlFlowNode::CF_FOR; @@ -2444,7 +2633,14 @@ void GDParser::_parse_block(BlockNode *p_block,bool p_static) { } current_block=cf_for->body; + + // this is for checking variable for redefining + // inside this _parse_block + cf_for->body->variables.push_back(id->name); + cf_for->body->variable_lines.push_back(id->line); _parse_block(cf_for->body,p_static); + cf_for->body->variables.remove(0); + cf_for->body->variable_lines.remove(0); current_block=p_block; if (error_set) @@ -2881,6 +3077,11 @@ void GDParser::_parse_class(ClassNode *p_class) { bool defaulting=false; while(true) { + if (tokenizer->get_token()==GDTokenizer::TK_NEWLINE) { + tokenizer->advance(); + continue; + } + if (tokenizer->get_token()==GDTokenizer::TK_PR_VAR) { tokenizer->advance(); //var before the identifier is allowed @@ -2933,6 +3134,10 @@ void GDParser::_parse_class(ClassNode *p_class) { default_values.push_back(on); } + while (tokenizer->get_token()==GDTokenizer::TK_NEWLINE) { + tokenizer->advance(); + } + if (tokenizer->get_token()==GDTokenizer::TK_COMMA) { tokenizer->advance(); continue; @@ -2974,6 +3179,7 @@ void GDParser::_parse_class(ClassNode *p_class) { if (tokenizer->get_token()!=GDTokenizer::TK_PARENTHESIS_CLOSE) { //has arguments + parenthesis ++; while(true) { Node *arg = _parse_and_reduce_expression(p_class,_static); @@ -2991,6 +3197,7 @@ void GDParser::_parse_class(ClassNode *p_class) { break; } + parenthesis --; } tokenizer->advance(); @@ -3054,6 +3261,10 @@ void GDParser::_parse_class(ClassNode *p_class) { if (tokenizer->get_token()==GDTokenizer::TK_PARENTHESIS_OPEN) { tokenizer->advance(); while(true) { + if (tokenizer->get_token()==GDTokenizer::TK_NEWLINE) { + tokenizer->advance(); + continue; + } if (tokenizer->get_token()==GDTokenizer::TK_PARENTHESIS_CLOSE) { @@ -3069,6 +3280,10 @@ void GDParser::_parse_class(ClassNode *p_class) { sig.arguments.push_back(tokenizer->get_token_identifier()); tokenizer->advance(); + while (tokenizer->get_token()==GDTokenizer::TK_NEWLINE) { + tokenizer->advance(); + } + if (tokenizer->get_token()==GDTokenizer::TK_COMMA) { tokenizer->advance(); } else if (tokenizer->get_token()!=GDTokenizer::TK_PARENTHESIS_CLOSE) { @@ -3102,17 +3317,41 @@ void GDParser::_parse_class(ClassNode *p_class) { current_export.type=type; current_export.usage|=PROPERTY_USAGE_SCRIPT_VARIABLE; tokenizer->advance(); + + String hint_prefix =""; + + if(type == Variant::ARRAY && tokenizer->get_token()==GDTokenizer::TK_COMMA) { + tokenizer->advance(); + + while(tokenizer->get_token()==GDTokenizer::TK_BUILT_IN_TYPE) { + type = tokenizer->get_token_type(); + + tokenizer->advance(); + + if(type == Variant::ARRAY) { + hint_prefix += itos(Variant::ARRAY)+":"; + if (tokenizer->get_token()==GDTokenizer::TK_COMMA) { + tokenizer->advance(); + } + } else { + hint_prefix += itos(type); + break; + } + } + } + if (tokenizer->get_token()==GDTokenizer::TK_COMMA) { // hint expected next! tokenizer->advance(); - switch(current_export.type) { + + switch(type) { case Variant::INT: { if (tokenizer->get_token()==GDTokenizer::TK_IDENTIFIER && tokenizer->get_token_identifier()=="FLAGS") { - current_export.hint=PROPERTY_HINT_ALL_FLAGS; + //current_export.hint=PROPERTY_HINT_ALL_FLAGS; tokenizer->advance(); if (tokenizer->get_token()==GDTokenizer::TK_PARENTHESIS_CLOSE) { @@ -3461,13 +3700,20 @@ void GDParser::_parse_class(ClassNode *p_class) { return; } break; } - + + } + if(current_export.type == Variant::ARRAY && !hint_prefix.empty()) { + if(current_export.hint) { + hint_prefix += "/"+itos(current_export.hint); + } + current_export.hint_string=hint_prefix+":"+current_export.hint_string; + current_export.hint=PROPERTY_HINT_NONE; } } else if (tokenizer->get_token()==GDTokenizer::TK_IDENTIFIER) { String identifier = tokenizer->get_token_identifier(); - if (!ObjectTypeDB::is_type(identifier,"Resource")) { + if (!ClassDB::is_parent_class(identifier,"Resource")) { current_export=PropertyInfo(); _set_error("Export hint not a type or resource."); @@ -3677,6 +3923,16 @@ void GDParser::_parse_class(ClassNode *p_class) { } member._export.type=cn->value.get_type(); member._export.usage|=PROPERTY_USAGE_SCRIPT_VARIABLE; + if (cn->value.get_type()==Variant::OBJECT) { + Object *obj = cn->value; + Resource *res = obj->cast_to<Resource>(); + if(res==NULL) { + _set_error("Exported constant not a type or resource."); + return; + } + member._export.hint=PROPERTY_HINT_RESOURCE_TYPE; + member._export.hint_string=res->get_class(); + } } } #ifdef TOOLS_ENABLED @@ -3913,7 +4169,16 @@ void GDParser::_parse_class(ClassNode *p_class) { } break; - + + case GDTokenizer::TK_CONSTANT: { + if(tokenizer->get_token_constant().get_type() == Variant::STRING) { + tokenizer->advance(); + // Ignore + } else { + _set_error(String()+"Unexpected constant of type: "+Variant::get_type_name(tokenizer->get_token_constant().get_type())); + return; + } + } break; default: { |