1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/*
Copyright (c) 2011, 2012, 2013, 2014 The Regents of the University of
California (Regents). 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
two paragraphs of disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
two paragraphs of disclaimer in the documentation and/or other materials
provided with the distribution.
* Neither the name of the Regents nor the names of its contributors
may be used to endorse or promote products derived from this
software without specific prior written permission.
IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS,
ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF
REGENTS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE. THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF
ANY, PROVIDED HEREUNDER IS PROVIDED "AS IS". REGENTS HAS NO OBLIGATION
TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
MODIFICATIONS.
*/
package Chisel
import scala.collection.mutable.ArrayBuffer
/** This Singleton implements a log4j compatible interface.
It is used through out the Chisel package to report errors and warnings
detected at runtime.
*/
object ChiselError {
var hasErrors: Boolean = false;
val ChiselErrors = new ArrayBuffer[ChiselError];
def clear() {
ChiselErrors.clear()
hasErrors = false
}
/** emit an error message */
def error(mf: => String, line: StackTraceElement) {
hasErrors = true
ChiselErrors += new ChiselError(() => mf, line)
}
def error(m: String) {
val stack = Thread.currentThread().getStackTrace
error(m, findFirstUserLine(stack) getOrElse stack(0))
}
/** Emit an informational message
(useful to track long running passes) */
def info(m: String): Unit =
println(tag("info", Console.MAGENTA) + " [%2.3f] ".format(Driver.elapsedTime/1e3) + m)
/** emit a warning message */
def warning(m: => String) {
val stack = Thread.currentThread().getStackTrace
ChiselErrors += new ChiselError(() => m,
findFirstUserLine(stack) getOrElse stack(0), 1)
}
def findFirstUserLine(stack: Array[StackTraceElement]): Option[StackTraceElement] = {
findFirstUserInd(stack) map { stack(_) }
}
def findFirstUserInd(stack: Array[StackTraceElement]): Option[Int] = {
def isUserCode(ste: StackTraceElement): Boolean = {
val className = ste.getClassName()
try {
val cls = Class.forName(className)
if( cls.getSuperclass() == classOf[Module] ) {
true
} else {
/* XXX Do it the old way until we figure if it is safe
to remove from Node.scala
var line: StackTraceElement = findFirstUserLine(Thread.currentThread().getStackTrace)
*/
val dotPos = className.lastIndexOf('.')
if( dotPos > 0 ) {
(className.subSequence(0, dotPos) != "Chisel") && !className.contains("scala") &&
!className.contains("java") && !className.contains("$$")
} else {
false
}
}
} catch {
case e: java.lang.ClassNotFoundException => false
}
}
val idx = stack.indexWhere(isUserCode)
if(idx < 0) {
println("COULDN'T FIND LINE NUMBER (" + stack(1) + ")")
None
} else {
Some(idx)
}
}
// Print stack frames up to and including the "user" stack frame.
def printChiselStackTrace() {
val stack = Thread.currentThread().getStackTrace
val idx = ChiselError.findFirstUserInd(stack)
idx match {
case None => {}
case Some(x) => for (i <- 0 to x) println(stack(i))
}
}
/** Prints error messages generated by Chisel at runtime. */
def report() {
if (!ChiselErrors.isEmpty) {
for(err <- ChiselErrors) err.print;
}
}
/** Throws an exception if there has been any error recorded
before this point. */
def checkpoint() {
if(hasErrors) {
throw new IllegalStateException(
Console.UNDERLINED + "CODE HAS " +
Console.UNDERLINED + Console.BOLD + ChiselErrors.filter(_.isError).length + Console.RESET +
Console.UNDERLINED + " " +
Console.UNDERLINED + Console.RED + "ERRORS" + Console.RESET +
Console.UNDERLINED + " and " +
Console.UNDERLINED + Console.BOLD + ChiselErrors.filter(_.isWarning).length + Console.RESET +
Console.UNDERLINED + " " +
Console.UNDERLINED + Console.YELLOW + "WARNINGS" + Console.RESET)
}
}
def tag(name: String, color: String): String =
s"[${color}${name}${Console.RESET}]"
}
class ChiselError(val errmsgFun: () => String, val errline: StackTraceElement,
val errlevel: Int = 0) {
val level = errlevel
val line = errline
val msgFun = errmsgFun
def isError = (level == 0)
def isWarning = (level == 1)
def print() {
/* Following conventions for error formatting */
val levelstr =
if (isError) ChiselError.tag("error", Console.RED)
else ChiselError.tag("warn", Console.YELLOW)
if( line != null ) {
println(levelstr + " " + line.getFileName + ":" +
line.getLineNumber + ": " + msgFun() +
" in class " + line.getClassName)
} else {
println(levelstr + ": " + msgFun())
}
}
}
|
