Mercurial > lcfOS

comparison python/testc3.py @ 148:e5263f74b287

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added c3 language frontend initial parser
author Windel Bouwman
date Fri, 01 Mar 2013 10:24:01 +0100
parents
children 74241ca312cc
comparison
equal deleted inserted replaced
147:4e79484a9d47 148:e5263f74b287
1 import c3.parser, c3.semantics
2 from ppci.errors import printError, Diagnostics
3
4 testsrc = """
5 package test;
6
7 public function void test1()
8 {
9 var u32 b;
10 var int a = 10;
11 b = 20;
12 var int buf;
13 var int i;
14 i = 2;
15 if (i > 1)
16 {
17 buf = b + 22 * i - 13 + (55 * 2 *9-2) / 44
18 }
19 }
20
21 public function int t2(u32 a, u32 b)
22 {
23 return a + b;
24 a = 2
25 }
26
27 """
28
29 def printAst(ast):
30 print(ast)
31 for c in ast.getChildren():
32 printAst(c)
33 if isinstance(ast, c3.astnodes.Package):
34 print('PACK', ast.scope)
35
36 def do():
37 print('[0] source:')
38 print(testsrc)
39 print('[1] parsing')
40 diag = Diagnostics()
41 sema = c3.semantics.Semantics(diag)
42 p = c3.parser.Parser(sema, diag)
43
44 p.parseSource(testsrc)
45
46 for d in diag.diags:
47 print('ERROR:', d)
48 printError(testsrc, d)
49 print('[2] ast:')
50 printAst(sema.mod)
51
52 do()
53