[1] | 1 | #include <iostream> |
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| 2 | #include <fstream> |
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| 3 | |
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| 4 | #include "LangLexer.hpp" |
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| 5 | #include "LangParser.hpp" |
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| 6 | #include "LangWalker.hpp" |
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| 7 | |
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| 8 | int main() |
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| 9 | { |
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| 10 | ANTLR_USING_NAMESPACE(std) |
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| 11 | ANTLR_USING_NAMESPACE(antlr) |
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| 12 | try { |
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| 13 | LangLexer lexer(cin); |
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| 14 | LangParser parser(lexer); |
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| 15 | // set up the ast factory to use a custom AST type per default |
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| 16 | // note that here the Ref prefix for the reference counter is |
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| 17 | // strippped off. |
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| 18 | ASTFactory ast_factory("MyAST", MyAST::factory); |
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| 19 | |
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| 20 | // let the parser add it's stuff to the factory... |
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| 21 | parser.initializeASTFactory(ast_factory); |
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| 22 | parser.setASTFactory(&ast_factory); |
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| 23 | |
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| 24 | parser.block(); |
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| 25 | |
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| 26 | cout << parser.getAST()->toStringList() << endl; |
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| 27 | |
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| 28 | LangWalker walker; |
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| 29 | // these two are not really necessary |
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| 30 | // since we're not building an AST |
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| 31 | walker.initializeASTFactory(ast_factory); |
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| 32 | walker.setASTFactory(&ast_factory); |
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| 33 | |
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| 34 | walker.block(RefMyAST(parser.getAST())); // walk tree |
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| 35 | cout << "done walking" << endl; |
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| 36 | |
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| 37 | #if 0 |
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| 38 | // disabled until configure/Makefile stuff stabilizes again |
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| 39 | cout << "Writing AST" << endl; |
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| 40 | ofstream xmlfile("out.xml"); |
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| 41 | if( xmlfile ) |
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| 42 | { |
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| 43 | xmlfile << parser.getAST(); |
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| 44 | xmlfile.close(); |
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| 45 | } |
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| 46 | cout << "Reading AST back" << endl; |
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| 47 | ifstream infile("out.xml"); |
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| 48 | |
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| 49 | RefAST read_ast = ast_factory.LoadAST(infile); |
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| 50 | if( ! parser.getAST()->equalsList(read_ast) ) |
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| 51 | cout << "AST's didn't match" << endl; |
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| 52 | else |
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| 53 | cout << "AST's matched!" << endl; |
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| 54 | #endif |
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| 55 | } |
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| 56 | catch( ANTLRException& e ) |
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| 57 | { |
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| 58 | cerr << "exception: " << e.getMessage() << endl; |
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| 59 | return -1; |
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| 60 | } |
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| 61 | catch( exception& e ) |
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| 62 | { |
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| 63 | cerr << "exception: " << e.what() << endl; |
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| 64 | return -1; |
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| 65 | } |
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| 66 | return 0; |
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| 67 | } |
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