/*****************************************************************************/
-/* Data */
+/* Data */
/*****************************************************************************/
/* Node types */
typedef enum {
- NT_NONE, /* None (invalid) op */
-
- NT_SYM, /* Symbol */
- NT_CONST, /* A constant of some sort */
- NT_ASM, /* Inline assembler */
-
- NT_REG_A, /* A register */
- NT_REG_X, /* X register */
- NT_REG_Y, /* Y register */
- NT_REG_AX, /* AX register */
- NT_REG_EAX, /* EAX register */
-
- NT_ARRAY_SUBSCRIPT, /* Array subscript */
- NT_STRUCT_ACCESS, /* Access of a struct field */
- NT_STRUCTPTR_ACCESS, /* Access via struct ptr */
- NT_FUNCTION_CALL, /* Call a function */
- NT_TYPECAST, /* A cast */
- NT_ADDRESS, /* Address operator (&) */
- NT_INDIRECT, /* Indirection operator (*) */
-
- NT_UNARY_MINUS,
- NT_COMPLEMENT, /* ~ */
- NT_BOOL_NOT, /* ! */
-
- NT_PLUS, /* + */
- NT_MINUS, /* - */
- NT_MUL, /* * */
- NT_DIV, /* / */
- NT_SHL, /* << */
- NT_SHR, /* >> */
- NT_AND, /* & */
- NT_OR, /* | */
- NT_XOR, /* ^ */
-
- NT_TERNARY, /* ?: */
-
- NT_ASSIGN, /* = */
- NT_PLUS_ASSIGN, /* += */
- NT_MINUS_ASSIGN, /* -= */
- NT_MUL_ASSIGN, /* *= */
- NT_DIV_ASSIGN, /* /= */
- NT_SHL_ASSIGN, /* <<= */
- NT_SHR_ASSIGN, /* >>= */
- NT_AND_ASSIGN, /* &= */
- NT_OR_ASSIGN, /* |= */
- NT_XOR_ASSIGN, /* ^= */
-
- NT_PRE_DEC, /* -- */
- NT_POST_DEC, /* -- */
- NT_PRE_INC, /* ++ */
- NT_POST_INC, /* ++ */
-
- NT_BOOL_OR, /* || */
- NT_BOOL_AND, /* && */
-
- NT_EQ, /* == */
- NT_NE, /* != */
- NT_LT, /* < */
- NT_LE, /* <= */
- NT_GT, /* > */
- NT_GE, /* >= */
-
- NT_COUNT /* Operation count */
+
+ /* Bits encoding the type of the objects stored in List for this
+ * particular node.
+ */
+ NT_LIST_NONE = 0x0000, /* No items */
+ NT_LIST_EXPR = 0x0100, /* Items are expression nodes */
+ NT_LIST_SYM = 0x0200, /* Items are symbol table entries */
+ NT_LIST_STRING = 0x0300, /* List item are character strings */
+ NT_MASK_LIST = 0x0300,
+
+ /* Two bits telling if this is a leaf or a branch */
+ NT_LEAF = 0x0000, /* Leaf */
+ NT_BRANCH = 0x8000, /* Branch */
+ NT_MASK_LEAF = 0x8000,
+
+ /* Special node type */
+ NT_NONE = 0x0000, /* None (invalid) op */
+
+ /* Leaves */
+ NT_SYM = 0x0001 | NT_LEAF | NT_LIST_SYM, /* Symbol */
+ NT_CONST = 0x0002 | NT_LEAF | NT_LIST_NONE, /* A constant of some sort */
+ NT_ASM = 0x0003 | NT_LEAF | NT_LIST_STRING, /* Inline assembler */
+
+ NT_REG_A = 0x0005 | NT_LEAF | NT_LIST_NONE, /* A register */
+ NT_REG_X = 0x0006 | NT_LEAF | NT_LIST_NONE, /* X register */
+ NT_REG_Y = 0x0007 | NT_LEAF | NT_LIST_NONE, /* Y register */
+ NT_REG_AX = 0x0008 | NT_LEAF | NT_LIST_NONE, /* AX register */
+ NT_REG_EAX = 0x0009 | NT_LEAF | NT_LIST_NONE, /* EAX register */
+
+ /* Branches */
+ NT_ARRAY_SUBSCRIPT = 0x0010 | NT_BRANCH | NT_LIST_EXPR, /* Array subscript */
+ NT_STRUCT_ACCESS = 0x0011 | NT_BRANCH | NT_LIST_EXPR, /* Access of a struct field */
+ NT_STRUCTPTR_ACCESS = 0x0012 | NT_BRANCH | NT_LIST_EXPR, /* Access via struct ptr */
+ NT_FUNCTION_CALL = 0x0013 | NT_BRANCH | NT_LIST_EXPR, /* Call a function */
+ NT_TYPECAST = 0x0014 | NT_BRANCH | NT_LIST_EXPR, /* A cast */
+ NT_ADDRESS = 0x0015 | NT_BRANCH | NT_LIST_EXPR, /* Address operator (&) */
+ NT_INDIRECT = 0x0016 | NT_BRANCH | NT_LIST_EXPR, /* Indirection operator (*) */
+
+ NT_UNARY_MINUS = 0x0018 | NT_BRANCH | NT_LIST_EXPR,
+ NT_COMPLEMENT = 0x0019 | NT_BRANCH | NT_LIST_EXPR, /* ~ */
+ NT_BOOL_NOT = 0x001A | NT_BRANCH | NT_LIST_EXPR, /* ! */
+
+ NT_PLUS = 0x001B | NT_BRANCH | NT_LIST_EXPR, /* + */
+ NT_MINUS = 0x001C | NT_BRANCH | NT_LIST_EXPR, /* - */
+ NT_MUL = 0x001D | NT_BRANCH | NT_LIST_EXPR, /* * */
+ NT_DIV = 0x001E | NT_BRANCH | NT_LIST_EXPR, /* / */
+ NT_SHL = 0x001F | NT_BRANCH | NT_LIST_EXPR, /* << */
+ NT_SHR = 0x0020 | NT_BRANCH | NT_LIST_EXPR, /* >> */
+ NT_AND = 0x0021 | NT_BRANCH | NT_LIST_EXPR, /* & */
+ NT_OR = 0x0022 | NT_BRANCH | NT_LIST_EXPR, /* | */
+ NT_XOR = 0x0023 | NT_BRANCH | NT_LIST_EXPR, /* ^ */
+
+ NT_TERNARY = 0x0024 | NT_BRANCH | NT_LIST_EXPR, /* ?: */
+
+ NT_ASSIGN = 0x0025 | NT_BRANCH | NT_LIST_EXPR, /* = */
+ NT_PLUS_ASSIGN = 0x0026 | NT_BRANCH | NT_LIST_EXPR, /* += */
+ NT_MINUS_ASSIGN = 0x0027 | NT_BRANCH | NT_LIST_EXPR, /* -= */
+ NT_MUL_ASSIGN = 0x0028 | NT_BRANCH | NT_LIST_EXPR, /* *= */
+ NT_DIV_ASSIGN = 0x0029 | NT_BRANCH | NT_LIST_EXPR, /* /= */
+ NT_SHL_ASSIGN = 0x002A | NT_BRANCH | NT_LIST_EXPR, /* <<= */
+ NT_SHR_ASSIGN = 0x002B | NT_BRANCH | NT_LIST_EXPR, /* >>= */
+ NT_AND_ASSIGN = 0x002C | NT_BRANCH | NT_LIST_EXPR, /* &= */
+ NT_OR_ASSIGN = 0x002D | NT_BRANCH | NT_LIST_EXPR, /* |= */
+ NT_XOR_ASSIGN = 0x002E | NT_BRANCH | NT_LIST_EXPR, /* ^= */
+
+ NT_PRE_DEC = 0x002F | NT_BRANCH | NT_LIST_EXPR, /* -- */
+ NT_POST_DEC = 0x0030 | NT_BRANCH | NT_LIST_EXPR, /* -- */
+ NT_PRE_INC = 0x0031 | NT_BRANCH | NT_LIST_EXPR, /* ++ */
+ NT_POST_INC = 0x0032 | NT_BRANCH | NT_LIST_EXPR, /* ++ */
+
+ NT_BOOL_OR = 0x0033 | NT_BRANCH | NT_LIST_EXPR, /* || */
+ NT_BOOL_AND = 0x0034 | NT_BRANCH | NT_LIST_EXPR, /* && */
+
+ NT_EQ = 0x0035 | NT_BRANCH | NT_LIST_EXPR, /* == */
+ NT_NE = 0x0036 | NT_BRANCH | NT_LIST_EXPR, /* != */
+ NT_LT = 0x0037 | NT_BRANCH | NT_LIST_EXPR, /* < */
+ NT_LE = 0x0038 | NT_BRANCH | NT_LIST_EXPR, /* <= */
+ NT_GT = 0x0039 | NT_BRANCH | NT_LIST_EXPR, /* > */
+ NT_GE = 0x003A | NT_BRANCH | NT_LIST_EXPR, /* >= */
+
+ NT_MASK_TYPE = 0x00FF
+
} nodetype_t;
type* Type; /* Resulting type */
int LValue; /* True if this is an lvalue */
- union {
- long I; /* Constant int value if any */
- double F; /* Constant float value if any */
- } V;
+ /* Attributes */
+ long IVal; /* Constant int value if any */
+ double FVal; /* Constant float value if any */
};
void SetNodeSym (ExprNode* N, struct SymEntry* Sym);
/* Set the symbol entry in a NT_SYM node */
+int IsLeafNode (const ExprNode* E);
+/* Return true if this is a leaf node */
+int IsBranchNode (const ExprNode* E);
+/* Return true if this is a branch node */
-/* End of exprnode.h */
-#endif
+/* End of exprnode.h */
+#endif
projects / cc65 / blobdiff