Mercurial > lcfOS
annotate python/ppci/errors.py @ 306:b145f8e6050b
Start on c3 rewrite
| author | Windel Bouwman |
|---|---|
| date | Mon, 09 Dec 2013 19:00:21 +0100 |
| parents | 0615b5308710 |
| children |
| rev | line source |
|---|---|
| 305 | 1 """ |
| 2 Error handling routines | |
| 148 | 3 Diagnostic utils |
| 4 """ | |
| 5 | |
| 255 | 6 import logging |
| 194 | 7 from . import SourceLocation |
| 8 | |
| 296 | 9 |
| 152 | 10 class CompilerError(Exception): |
| 200 | 11 def __init__(self, msg, loc=None): |
| 191 | 12 self.msg = msg |
| 13 self.loc = loc | |
| 200 | 14 if loc: |
| 289 | 15 assert type(loc) is SourceLocation, \ |
| 305 | 16 '{0} must be SourceLocation'.format(type(loc)) |
| 215 | 17 self.row = loc.row |
| 18 self.col = loc.col | |
| 19 else: | |
|
251
6ed3d3a82a63
Added another c3 example. First import attempt
Windel Bouwman
parents:
248
diff
changeset
|
20 self.row = self.col = 0 |
| 215 | 21 |
| 191 | 22 def __repr__(self): |
| 293 | 23 return '"{}"'.format(self.msg) |
| 1 | 24 |
| 148 | 25 |
| 152 | 26 class DiagnosticsManager: |
| 225 | 27 def __init__(self): |
| 248 | 28 self.diags = [] |
| 293 | 29 self.sources = {} |
| 255 | 30 self.logger = logging.getLogger('diagnostics') |
| 215 | 31 |
| 293 | 32 def addSource(self, name, src): |
| 33 self.logger.info('Adding source {}'.format(name)) | |
| 34 self.sources[name] = src | |
| 35 | |
| 225 | 36 def addDiag(self, d): |
| 296 | 37 #self.logger.warning(str(d.msg)) |
| 248 | 38 self.diags.append(d) |
| 215 | 39 |
| 225 | 40 def error(self, msg, loc): |
| 248 | 41 self.addDiag(CompilerError(msg, loc)) |
| 215 | 42 |
| 225 | 43 def clear(self): |
| 248 | 44 del self.diags[:] |
| 293 | 45 self.sources.clear() |
| 215 | 46 |
| 293 | 47 def printErrors(self): |
| 225 | 48 if len(self.diags) > 0: |
| 49 print('{0} Errors'.format(len(self.diags))) | |
| 50 for d in self.diags: | |
| 293 | 51 self.printError(d) |
| 148 | 52 |
| 293 | 53 def printError(self, e): |
| 54 def printLine(row, txt): | |
| 55 print(str(row)+':'+txt) | |
| 295 | 56 print('==============') |
| 293 | 57 if not e.loc: |
| 58 print('Error: {0}'.format(e)) | |
| 59 else: | |
| 60 if e.loc.filename not in self.sources: | |
| 61 print('Error: {0}'.format(e)) | |
| 62 return | |
| 295 | 63 print("File: {}".format(e.loc.filename)) |
| 293 | 64 source = self.sources[e.loc.filename] |
| 65 lines = source.split('\n') | |
| 66 ro, co = e.row, e.col | |
| 67 prerow = ro - 2 | |
| 68 if prerow < 1: | |
| 69 prerow = 1 | |
| 70 afterrow = ro + 3 | |
| 71 if afterrow > len(lines): | |
| 72 afterrow = len(lines) | |
| 73 | |
| 74 # print preceding source lines: | |
| 75 for r in range(prerow, ro): | |
| 76 printLine(r, lines[r-1]) | |
| 77 # print source line containing error: | |
| 78 printLine(ro, lines[ro-1]) | |
| 79 print(' '*(len(str(ro)+':')+co-1) + '^ Error: {0}'.format(e.msg)) | |
| 80 # print trailing source line: | |
| 81 for r in range(ro+1, afterrow+1): | |
| 82 printLine(r, lines[r-1]) | |
| 295 | 83 print('==============') |