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authorTeddy <[email protected]>2014-03-23 20:12:50 +0800
committerTeddy <[email protected]>2014-03-23 20:12:50 +0800
commit4edd0c4745ed0683867b116dc8ac33c65bf0b99a (patch)
tree6ef0946837bb4c7b8512eb6d96a9260c14ed1a29
parent97fb20538cdac668dda0a0aa82884505bc0df61a (diff)
add AST
-rw-r--r--Makefile3
-rw-r--r--ast.h32
-rw-r--r--cibic.y1
3 files changed, 36 insertions, 0 deletions
diff --git a/Makefile b/Makefile
index 6deae78..b6eeb33 100644
--- a/Makefile
+++ b/Makefile
@@ -9,3 +9,6 @@ lex.yy.c: cibic.l
flex cibic.l
cibic.tab.c: cibic.y
bison -d cibic.y
+
+clean:
+ rm -f cibic lex.yy.c cibic.tab.c
diff --git a/ast.h b/ast.h
new file mode 100644
index 0000000..f6db7da
--- /dev/null
+++ b/ast.h
@@ -0,0 +1,32 @@
+typedef struct {
+ enum {
+ /* Top Level */
+ PROG = 1024, FUNC_DEF, PARAMS,
+ DECL, /* declaration */
+ DECLR, /* declarator */
+ DECLRS,
+ INIT_DECLRS, INIT_DECLR,
+ INITR, /* initializer */
+ TYPE_SPEC,
+ STRUCT, UNION,
+ PLAIN_DECL, PLAIN_DECLR,
+
+ /* Statments */
+ EXP_STMT, /* expression-statment */
+ COMP_STMT, IF_STMT, /* selection-statment */
+ WHILE_STMT, FOR_STMT,
+ CONT_STMT , BREAK_STMT, RET_STMT, /* 'continue', 'break', 'return' */
+
+ /* Expressions (expressions use their token ID to denote their types */
+ EXP
+ } type;
+ union {
+ int intval;
+ char *strvar;
+ } rec;
+ struct CNode *chd, *next;
+ /* For error reporting */
+ struct Location {
+ int row, col;
+ } loc;
+} CNode;
diff --git a/cibic.y b/cibic.y
index 92f0cfe..a27c247 100644
--- a/cibic.y
+++ b/cibic.y
@@ -1,5 +1,6 @@
%{
#include <stdio.h>
+#include "ast.h"
%}
%token IDENTIFIER INT_CONST CHAR_CONST STR_CONST
%token KW_VOID KW_CHAR KW_INT KW_STRUCT KW_UNION KW_IF KW_ELSE KW_WHILE