X-Git-Url: https://git.m6w6.name/?p=m6w6%2Fext-psi;a=blobdiff_plain;f=src%2Ftoken.h;h=65d37a2e635d6f8fdf69e7970dcb29450310917a;hp=c7ce75147cd127d097ac3ecd51d562236dc93293;hb=224b0dc90c463f236a978f41c66c2f2b565038b5;hpb=5359ad5c181e5772f350fe1cba060cbed3a05b91

diff --git a/src/token.h b/src/token.h
index c7ce751..65d37a2 100644
--- a/src/token.h
+++ b/src/token.h
@@ -1,10 +1,48 @@
-#ifndef _PSI_TOKEN_H
-#define _PSI_TOKEN_H
+/*******************************************************************************
+ Copyright (c) 2016, Michael Wallner <mike@php.net>.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+     * Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+     * Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*******************************************************************************/
+
+#ifndef PSI_TOKEN_H
+#define PSI_TOKEN_H
 
 #include <stddef.h>
 #include <stdarg.h>
 #include <stdint.h>
 #include <assert.h>
+#include <sys/param.h>
+
+static inline size_t psi_align(size_t s, size_t a) {
+	return ((s - 1) | (a - 1)) + 1;
+}
+
+static inline size_t psi_offset_padding(size_t diff, size_t alignment) {
+	if (diff && diff <= psi_align(diff, alignment)) {
+		diff = 0;
+	}
+
+	return diff;
+}
 
 #include "parser_proc.h"
 
@@ -13,6 +51,52 @@
 
 typedef int token_t;
 
+static inline int psi_num_exp_op_cmp(token_t op1, token_t op2)
+{
+	assert(!op1 || op1 == PSI_T_LPAREN || (op1 <= PSI_T_NOT && op1 >= PSI_T_PIPE));
+	assert(!op2 || op2 == PSI_T_LPAREN || (op2 <= PSI_T_NOT && op2 >= PSI_T_PIPE));
+
+	if (PSI_T_LPAREN == op2) {
+		return -1;
+	} else if (PSI_T_LPAREN == op1) {
+		return 1;
+	} else if (op1 == op2) {
+		return 0;
+	} else if (!op1) {
+		return 1;
+	} else if (!op2) {
+		return -1;
+	}
+
+	switch (op1) {
+	case PSI_T_PIPE:
+		return op2 > PSI_T_PIPE ? 1 : (op2 < PSI_T_PIPE ? -1 : 0);
+	case PSI_T_CARET:
+		return op2 > PSI_T_CARET ? 1 : (op2 < PSI_T_CARET ? -1 : 0);
+	case PSI_T_AMPERSAND:
+		return op2 > PSI_T_AMPERSAND ? 1 : (op2 < PSI_T_AMPERSAND ? -1 : 0);
+
+	case PSI_T_LSHIFT:
+	case PSI_T_RSHIFT:
+		return op2 > PSI_T_RSHIFT ? 1 : (op2 < PSI_T_LSHIFT ? -1 : 0);
+
+	case PSI_T_PLUS:
+	case PSI_T_MINUS:
+		return op2 > PSI_T_MINUS ? 1 : (op2 < PSI_T_PLUS ? -1 : 0);
+
+	case PSI_T_ASTERISK:
+	case PSI_T_SLASH:
+	case PSI_T_MODULO:
+		return op2 > PSI_T_MODULO ? 1 : (op2 < PSI_T_ASTERISK ? -1 : 0);
+
+	case PSI_T_NOT:
+	case PSI_T_TILDE:
+		return op2 > PSI_T_TILDE ? 1 : (op2 < PSI_T_NOT ? -1 : 0);
+	}
+
+	return 0;
+}
+
 static inline size_t psi_t_alignment(token_t t)
 {
 #define PSI_ALIGNOF(T) case PSI_T_## T: return ALIGNOF_## T ##_T;
@@ -34,6 +118,10 @@ static inline size_t psi_t_alignment(token_t t)
 		return ALIGNOF_VOID_P;
 	case PSI_T_ENUM:
 		return ALIGNOF_INT;
+#ifdef HAVE_LONG_DOUBLE
+	case PSI_T_LONG_DOUBLE:
+		return ALIGNOF_LONG_DOUBLE;
+#endif
 	default:
 		assert(0);
 	}
@@ -56,17 +144,33 @@ static inline size_t psi_t_size(token_t t)
 		return SIZEOF_FLOAT;
 	case PSI_T_DOUBLE:
 		return SIZEOF_DOUBLE;
+	case PSI_T_VOID:
 	case PSI_T_POINTER:
 	case PSI_T_FUNCTION:
 		return SIZEOF_VOID_P;
 	case PSI_T_ENUM:
 		return SIZEOF_INT;
+#ifdef HAVE_LONG_DOUBLE
+	case PSI_T_LONG_DOUBLE:
+		return SIZEOF_LONG_DOUBLE;
+#endif
 	default:
-		assert(0);
+		assert(!t);
 	}
 	return 0;
 }
 
+static inline const char *psi_t_indent(unsigned level) {
+	static const char indent[] =
+			"\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t";
+	return &indent[32 - MIN(32, level)];
+}
+
+static inline const char *psi_t_indirection(unsigned pointer_level) {
+	static const char indir[] = "********************************";
+	return &indir[32 - MIN(32, pointer_level)];
+}
+
 struct psi_token {
 	token_t type;
 	unsigned size, line, col;