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https://github.com/ZDoom/gzdoom-gles.git
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- So, progress...
SVN r2707 (scripting)
This commit is contained in:
Randy Heit
parent
081ebbb64b
commit
12c6ddfbfb
2 changed files with 215 additions and 50 deletions
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@ -64,6 +64,10 @@
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%left DOT LPAREN LBRACKET.
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%left SCOPE.
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%type declarator {ZCC_Declarator *}
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%type declarator_no_fun {ZCC_Declarator *}
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%type opt_func_body {ZCC_CompoundStmt *}
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%type function_body {ZCC_CompoundStmt *}
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main ::= translation_unit. { stat->sc.ScriptMessage("Parse complete\n"); }
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@ -180,7 +184,7 @@ class_member ::= default_def.
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class_member ::= const_def.
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/*----- Struct Definition -----*/
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/* Structs can define variables, enums<s>, and structs</s>. */
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/* Structs can define variables and enums. */
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%type struct_body{ZCC_TreeNode *}
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%type struct_member{ZCC_TreeNode *}
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@ -205,7 +209,7 @@ struct_member(X) ::= enum_def(A). { X = A; }
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/*----- Enum Definition -----*/
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/* Enumerators are lists of named integers. */
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%type enum_type {EZCCIntType}
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%type enum_type {EZCCBuiltinType}
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%type enum_list {ZCC_EnumNode *}
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%type enumerator {ZCC_EnumNode *}
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@ -362,33 +366,67 @@ state_call(X) ::= IDENTIFIER(A) func_expr_list(B).
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default_def ::= DEFAULT compound_statement.
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/* Type names */
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%type int_type {EZCCIntType}
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%type type_name {PType *}
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%type int_type {EZCCBuiltinType}
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%type type_name {ZCC_BasicType *}
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%type type_name1 {EZCCBuiltinType}
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%type vector_size {EZCCBuiltinType}
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int_type(X) ::= SBYTE. { X = ZCCINT_SInt8; }
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int_type(X) ::= BYTE. { X = ZCCINT_UInt8; }
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int_type(X) ::= SHORT. { X = ZCCINT_SInt16; }
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int_type(X) ::= USHORT. { X = ZCCINT_UInt16; }
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int_type(X) ::= INT. { X = ZCCINT_SInt32; }
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int_type(X) ::= UINT. { X = ZCCINT_UInt32; }
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int_type(X) ::= SBYTE. { X = ZCC_SInt8; }
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int_type(X) ::= BYTE. { X = ZCC_UInt8; }
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int_type(X) ::= SHORT. { X = ZCC_SInt16; }
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int_type(X) ::= USHORT. { X = ZCC_UInt16; }
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int_type(X) ::= INT. { X = ZCC_SInt32; }
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int_type(X) ::= UINT. { X = ZCC_UInt32; }
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type_name(X) ::= BOOL. { /*FIXME*/ X = TypeBool; }
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type_name(X) ::= int_type(A). { X = A; }
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type_name(X) ::= FLOAT. { X = TypeFloat32; }
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type_name(X) ::= DOUBLE. { X = TypeFloat64; }
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type_name(X) ::= STRING. { X = TypeString; }
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type_name(X) ::= VECTOR vector_size(A). { X = NewVector(A); }
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type_name(X) ::= NAME. { X = TypeName; }
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type_name(X) ::= IDENTIFIER. /* User-defined type (struct, enum, or class) */
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type_name1(X) ::= BOOL. { X = ZCC_Bool; }
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type_name1(X) ::= int_type(A). { X = A; }
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type_name1(X) ::= FLOAT. { X = ZCC_FloatAuto; }
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type_name1(X) ::= DOUBLE. { X = ZCC_Float64; }
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type_name1(X) ::= STRING. { X = ZCC_String; }
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type_name1(X) ::= VECTOR vector_size(A). { X = A; }
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type_name1(X) ::= NAME. { X = ZCC_Name; }
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type_name(X) ::= type_name1(A).
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{
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// FIXME
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X = NULL;
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NEW_AST_NODE(BasicType, type);
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type->Type = A;
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type->UserType = NULL;
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X = type;
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}
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type_name(X) ::= IDENTIFIER(A). /* User-defined type (struct, enum, or class) */
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{
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NEW_AST_NODE(BasicType, type);
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NEW_AST_NODE(ZCC_Identifier, id);
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type->Type = ZCC_UserType;
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type->UserType = id;
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id->Id = A;
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X = type;
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}
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type_name(X) ::= LBRACKET dottable_id(A) RBRACKET.
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{
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NEW_AST_NODE(BasicType, type);
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type->Type = ZCC_UserType;
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type->UserType = A;
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X = type;
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}
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%type vector_size {unsigned int}
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vector_size ::= .
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vector_size(X) ::= LT INTCONST(A) GT. { X = A.Int; }
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/* Vectors can be 2, 3, or 4 entries long. Default is a 3D vector.
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* (Well, actually, I'm not sure if 4D ones are going to happen
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* straight away.)
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*/
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vector_size(X) ::= . { X = ZCC_Vector3; }
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vector_size(X) ::= LT INTCONST(A) GT.
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{
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if (A.Int >= 2 && A.Int <= 4)
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{
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X = ZCC_Vector2 + A.Int - 2;
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}
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else
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{
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X = ZCC_Vector3;
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stat->sc.ScriptMessage("Invalid vector size %d\n", A.Int);
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}
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}
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/* Type names can also be used as identifiers in contexts where type names
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* are not normally allowed. */
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@ -401,15 +439,32 @@ vector_size(X) ::= LT INTCONST(A) GT. { X = A.Int; }
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%type type_list {ZCC_Type *}
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%type type_list_or_void {ZCC_Type *}
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%type type_or_array {ZCC_Type *}
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%type class_restrictor {PClass *}
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%type class_restrictor {ZCC_Identifier *}
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%type array_size{ZCC_Expression *}
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aggregate_type ::= MAP LT type_or_array COMMA type_or_array GT. /* Hash table */
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aggregate_type ::= ARRAY LT type_or_array GT. /* TArray<type> */
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aggregate_type ::= CLASS class_restrictor. /* class<type> */
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aggregate_type(X) ::= MAP LT type_or_array(A) COMMA type_or_array(B) GT. /* Hash table */
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{
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NEW_AST_NODE(ZCC_MapType,map);
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map->KeyType = A;
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map->ValueType = B;
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X = map;
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}
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class_restrictor ::= .
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class_restrictor ::= LT IDENTIFIER GT.
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aggregate_type(X) ::= ARRAY LT type_or_array(A) GT. /* TArray<type> */
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{
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NEW_AST_NODE(ZCC_DynArrayType,arr);
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map->ElementType = A;
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X = map;
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}
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aggregate_type(X) ::= CLASS class_restrictor(A). /* class<type> */
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{
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NEW_AST_NODE(ZCC_ClassType,cls);
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cls->Restriction = A;
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X = cls;
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}
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class_restrictor(X) ::= . { X = NULL; }
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class_restrictor(X) ::= LT dottable_id(A) GT. { X = A; }
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type(X) ::= type_name(A). { X = A; A->ArraySize = NULL; }
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type(X) ::= aggregate_type(A). { X = A; A->ArraySize = NULL; }
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@ -451,17 +506,99 @@ array_size(X) ::= array_size(A) LBRACKET opt_expr(B) RBRACKET.
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X = A;
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}
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declarator ::= decl_flags type_list_or_void variables_or_function. /* Multiple type names are only valid for functions. */
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declarator_no_fun ::= decl_flags type variable_list.
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%include
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{
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struct VarOrFun
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{
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ZCC_VarName *VarNames;
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ZCC_FuncParamDecl *FuncParams;
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ENamedName FuncName;
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int FuncFlags;
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};
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}
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%type variables_or_function {VarOrFun}
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variables_or_function ::= IDENTIFIER LPAREN func_params RPAREN func_const opt_func_body. /* Function */
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variables_or_function ::= variable_list SEMICOLON.
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/* Multiple type names are only valid for functions. */
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declarator(X) ::= decl_flags(A) type_list_or_void(B) variables_or_function(C).
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{
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if (C.FuncParams == NULL && C.VarNames == NULL)
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{ // An error. A message was already printed.
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X = NULL;
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}
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else if (C.FuncParams != NULL)
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{ // A function
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NEW_AST_NODE(FuncDeclarator, decl);
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decl->Type = B;
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decl->Params = C.FuncParams;
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decl->Name = C.FuncName;
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decl->Flags = A | C.FuncFlags;
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X = decl;
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}
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else if (B != NULL && B->Sibling == NULL)
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{ // A variable
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NEW_AST_NODE(VarDeclarator, decl);
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decl->Type = B;
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decl->Names = C.VarNames;
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decl->Flags = A;
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X = decl;
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}
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else
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{ // An invalid
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if (B == NULL)
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{
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sc.ScriptMessage("Variables may not be of type void.\n");
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}
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else
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{
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sc.ScriptMessage("Variables may be of only one type.\n");
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}
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X = NULL;
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}
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}
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declarator_no_fun(X) ::= decl_flags(A) type(B) variable_list(C).
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{
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NEW_AST_NODE(VarDeclarator, decl);
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decl->Type = B;
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decl->Names = C;
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decl->Flags = A;
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X = decl;
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}
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// Need to split it up like this to avoid parsing conflicts.
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variables_or_function(X) ::= IDENTIFIER(A) LPAREN func_params(B) RPAREN func_const(C) opt_func_body(D). /* Function */
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{
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VarOrFun fun;
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fun.VarNames = NULL;
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fun.FuncParams = B;
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fun.FuncFlags = C;
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fun.FuncName = A.Name();
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fun.FuncBody = D;
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X = fun;
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}
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variables_or_function(X) ::= variable_list(A) SEMICOLON.
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{
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VarOrFun var;
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var.VarNames = A;
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var.FuncParams = NULL;
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var.FuncFlags = 0;
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var.FuncName = NAME_None;
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var.FuncBody = NULL;
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X = var;
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}
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variables_or_function ::= error SEMICOLON.
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{
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VarOrFun bad;
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bad.VarNames = NULL;
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bad.FuncParams = NULL;
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bad.FuncFlags = 0;
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bad.FuncName = NAME_None;
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bad.Func_Body = NULL;
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X = bad;
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}
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/*----- Variable Names -----*/
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// They get the array size, because that makes it look more like C.
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// I might still change my mind and stick array sizes with the rest
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// of the type like C#.
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%type variable_name{ZCC_VarName *}
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%type variable_list{ZCC_VarName *}
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@ -499,8 +636,8 @@ decl_flags(X) ::= decl_flags(A) DEPRECATED. { X = A | ZCC_Deprecated; }
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func_const ::= .
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func_const ::= CONST.
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opt_func_body ::= SEMICOLON.
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opt_func_body ::= function_body.
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opt_func_body(X) ::= SEMICOLON. { X = NULL; }
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opt_func_body(X) ::= function_body(A). { X = A; }
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%type func_params {ZCC_FuncParamDecl *}
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%type func_param_list {ZCC_FuncParamDecl *}
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@ -93,15 +93,26 @@ enum EZCCTreeNodeType
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AST_ConstantDef,
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};
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enum EZCCIntType
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enum EZCCBuiltinType
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{
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ZCCINT_SInt8,
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ZCCINT_UInt8,
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ZCCINT_SInt16,
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ZCCINT_UInt16,
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ZCCINT_SInt32,
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ZCCINT_UInt32,
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ZCCINT_Auto, // for enums, autoselect appropriately sized int
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ZCC_SInt8,
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ZCC_UInt8,
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ZCC_SInt16,
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ZCC_UInt16,
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ZCC_SInt32,
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ZCC_UInt32,
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ZCC_IntAuto, // for enums, autoselect appropriately sized int
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ZCC_Bool,
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ZCC_Float32,
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ZCC_Float64,
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ZCC_FloatAuto, // 32-bit in structs/classes, 64-bit everywhere else
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ZCC_String,
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ZCC_Vector2,
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ZCC_Vector3,
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ZCC_Vector4,
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ZCC_Name,
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ZCC_UserType,
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};
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enum EZCCExprType
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@ -293,8 +304,8 @@ struct ZCC_Type : ZCC_TreeNode
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struct ZCC_BasicType : ZCC_Type
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{
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PType *Type;
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ENamedName TypeName;
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EZCCBuiltinType Type;
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ZCC_Identifier *UserType;
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};
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struct ZCC_MapType : ZCC_Type
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@ -310,7 +321,24 @@ struct ZCC_DynArrayType : ZCC_Type
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struct ZCC_ClassType : ZCC_Type
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{
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ENamedName Restriction;
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ZCC_Identifier *Restriction;
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};
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// A variable in a class or struct.
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struct ZCC_VarDeclarator : ZCC_TreeNode
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{
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ZCC_Type *Type;
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ZCC_VarName *Names;
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int Flags;
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};
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// A function in a class.
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struct ZCC_FuncDeclarator : ZCC_TreeNode
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{
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ZCC_Type *Type;
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ZCC_FuncParamDecl *Params;
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ENamedName Name;
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int Flags;
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};
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struct ZCC_ExprID : ZCC_Expression
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