Mercurial > lcfOS
annotate python/ppci/errors.py @ 295:917eab04b8b7
Added disasm
| author | Windel Bouwman |
|---|---|
| date | Thu, 28 Nov 2013 21:10:32 +0100 |
| parents | 6aa721e7b10b |
| children | 9417caea2eb3 |
| rev | line source |
|---|---|
| 148 | 1 """ |
| 2 Error handling routines | |
| 3 Diagnostic utils | |
| 4 """ | |
| 5 | |
| 255 | 6 import logging |
| 194 | 7 from . import SourceLocation |
| 8 | |
| 152 | 9 class CompilerError(Exception): |
| 200 | 10 def __init__(self, msg, loc=None): |
| 191 | 11 self.msg = msg |
| 12 self.loc = loc | |
| 200 | 13 if loc: |
| 289 | 14 assert type(loc) is SourceLocation, \ |
| 15 '{0} must be SourceLocation'.format(type(loc)) | |
| 215 | 16 self.row = loc.row |
| 17 self.col = loc.col | |
| 18 else: | |
|
251
6ed3d3a82a63
Added another c3 example. First import attempt
Windel Bouwman
parents:
248
diff
changeset
|
19 self.row = self.col = 0 |
| 215 | 20 |
| 191 | 21 def __repr__(self): |
| 293 | 22 return '"{}"'.format(self.msg) |
| 1 | 23 |
| 148 | 24 |
| 152 | 25 class DiagnosticsManager: |
| 225 | 26 def __init__(self): |
| 248 | 27 self.diags = [] |
| 293 | 28 self.sources = {} |
| 255 | 29 self.logger = logging.getLogger('diagnostics') |
| 215 | 30 |
| 293 | 31 def addSource(self, name, src): |
| 32 self.logger.info('Adding source {}'.format(name)) | |
| 33 self.sources[name] = src | |
| 34 | |
| 225 | 35 def addDiag(self, d): |
| 293 | 36 self.logger.warning(str(d.msg)) |
| 248 | 37 self.diags.append(d) |
| 215 | 38 |
| 225 | 39 def error(self, msg, loc): |
| 248 | 40 self.addDiag(CompilerError(msg, loc)) |
| 215 | 41 |
| 225 | 42 def clear(self): |
| 248 | 43 del self.diags[:] |
| 293 | 44 self.sources.clear() |
| 215 | 45 |
| 293 | 46 def printErrors(self): |
| 225 | 47 if len(self.diags) > 0: |
| 48 print('{0} Errors'.format(len(self.diags))) | |
| 49 for d in self.diags: | |
| 293 | 50 self.printError(d) |
| 148 | 51 |
| 293 | 52 def printError(self, e): |
| 53 def printLine(row, txt): | |
| 54 print(str(row)+':'+txt) | |
| 295 | 55 print('==============') |
| 293 | 56 if not e.loc: |
| 57 print('Error: {0}'.format(e)) | |
| 58 else: | |
| 59 if e.loc.filename not in self.sources: | |
| 60 print('Error: {0}'.format(e)) | |
| 61 return | |
| 295 | 62 print("File: {}".format(e.loc.filename)) |
| 293 | 63 source = self.sources[e.loc.filename] |
| 64 lines = source.split('\n') | |
| 65 ro, co = e.row, e.col | |
| 66 prerow = ro - 2 | |
| 67 if prerow < 1: | |
| 68 prerow = 1 | |
| 69 afterrow = ro + 3 | |
| 70 if afterrow > len(lines): | |
| 71 afterrow = len(lines) | |
| 72 | |
| 73 # print preceding source lines: | |
| 74 for r in range(prerow, ro): | |
| 75 printLine(r, lines[r-1]) | |
| 76 # print source line containing error: | |
| 77 printLine(ro, lines[ro-1]) | |
| 78 print(' '*(len(str(ro)+':')+co-1) + '^ Error: {0}'.format(e.msg)) | |
| 79 # print trailing source line: | |
| 80 for r in range(ro+1, afterrow+1): | |
| 81 printLine(r, lines[r-1]) | |
| 295 | 82 print('==============') |