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antlr
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This commit is contained in:
ericvergnaud 2014-10-16 22:57:29 +08:00
parent 50466f61dd
commit f22acf701e
25 changed files with 203 additions and 4 deletions
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117
tool/test/org/antlr/v4/testgen/Generator.java
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@ -105,16 +105,125 @@ public class Generator {
private Collection<TestFile> buildTests() throws Exception {
List<TestFile> list = new ArrayList<TestFile>();
list.add(buildLexerExec());
list.add(buildParserExec());
list.add(buildCompositeLexers());
list.add(buildCompositeParsers());
list.add(buildFullContextParsing());
list.add(buildLeftRecursion());
list.add(buildLexerErrors());
list.add(buildLexerExec());
list.add(buildListeners());
return list;
list.add(buildParserErrors());
list.add(buildParserExec());
return list;
}
private TestFile buildParserErrors() throws Exception {
TestFile file = new TestFile("ParserErrors");
file.addParserTest(input, "TokenMismatch", "T", "a",
"aa",
"",
"line 1:1 mismatched input 'a' expecting 'b'\n");
file.addParserTest(input, "SingleTokenDeletion", "T", "a",
"aab",
"",
"line 1:1 extraneous input 'a' expecting 'b'\n");
file.addParserTest(input, "SingleTokenDeletionExpectingSet", "T", "a",
"aab",
"",
"line 1:1 extraneous input 'a' expecting {'b', 'c'}\n");
file.addParserTest(input, "SingleTokenInsertion", "T", "a",
"ac",
"",
"line 1:1 missing 'b' at 'c'\n");
file.addParserTest(input, "ConjuringUpToken", "T", "a",
"ac",
"conjured=[@-1,-1:-1='<missing 'b'>',<1>,1:1]\n",
null);
file.addParserTest(input, "SingleSetInsertion", "T", "a",
"ad",
"",
"line 1:1 missing {'b', 'c'} at 'd'\n");
file.addParserTest(input, "ConjuringUpTokenFromSet", "T", "a",
"ad",
"conjured=[@-1,-1:-1='<missing 'b'>',<1>,1:1]\n",
null);
file.addParserTest(input, "LL2", "T", "a",
"ae",
"",
"line 1:1 no viable alternative at input 'ae'\n");
file.addParserTest(input, "LL3", "T", "a",
"abe",
"",
"line 1:2 no viable alternative at input 'abe'\n");
file.addParserTest(input, "LLStar", "T", "a",
"aaae",
"",
"line 1:3 no viable alternative at input 'aaae'\n");
file.addParserTest(input, "SingleTokenDeletionBeforeLoop", "T", "a",
"aabc",
"",
"line 1:1 extraneous input 'a' expecting {<EOF>, 'b'}\n" +
"line 1:3 token recognition error at: 'c'\n");
file.addParserTest(input, "MultiTokenDeletionBeforeLoop", "T", "a",
"aacabc",
"",
"line 1:1 extraneous input 'a' expecting {'b', 'c'}\n");
file.addParserTest(input, "SingleTokenDeletionDuringLoop", "T", "a",
"ababbc",
"",
"line 1:2 extraneous input 'a' expecting {'b', 'c'}\n");
file.addParserTest(input, "MultiTokenDeletionDuringLoop", "T", "a",
"abaaababc",
"",
"line 1:2 extraneous input 'a' expecting {'b', 'c'}\n" +
"line 1:6 extraneous input 'a' expecting {'b', 'c'}\n");
file.addParserTest(input, "SingleTokenDeletionBeforeLoop2", "T", "a",
"aabc",
"",
"line 1:1 extraneous input 'a' expecting {<EOF>, 'b', 'z'}\n" +
"line 1:3 token recognition error at: 'c'\n");
file.addParserTest(input, "MultiTokenDeletionBeforeLoop2", "T", "a",
"aacabc",
"",
"line 1:1 extraneous input 'a' expecting {'b', 'z', 'c'}\n");
file.addParserTest(input, "SingleTokenDeletionDuringLoop2", "T", "a",
"ababbc",
"",
"line 1:2 extraneous input 'a' expecting {'b', 'z', 'c'}\n");
file.addParserTest(input, "MultiTokenDeletionDuringLoop2", "T", "a",
"abaaababc",
"",
"line 1:2 extraneous input 'a' expecting {'b', 'z', 'c'}\n" +
"line 1:6 extraneous input 'a' expecting {'b', 'z', 'c'}\n");
file.addParserTest(input, "LL1ErrorInfo", "T", "start",
"dog and software",
"{'hardware', 'software'}\n",
null);
file.addParserTest(input, "InvalidEmptyInput", "T", "start",
"",
"",
"line 1:0 missing ID at '<EOF>'\n");
file.addParserTest(input, "ContextListGetters", "T", "s",
"abab",
"abab\n",
null);
file.addParserTestsWithErrors(input, "DuplicatedLeftRecursiveCall", "T", "start",
"xx", "", null,
"xxx", "", null,
"xxxx", "", null);
file.addParserTest(input, "InvalidATNStateRemoval", "T", "start",
"x:x",
"",
null);
// "a." matches 'a' to rule e but then realizes '.' won't match.
// previously would cause noviablealt. now prediction pretends to
// have "a' predict 2nd alt of e. Will get syntax error later so
// let it get farther.
file.addParserTest(input, "NoViableAltAvoidance", "T", "s",
"a.",
"",
"line 1:1 mismatched input '.' expecting '!'\n");
return file;
}
private TestFile buildListeners() throws Exception {

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/ConjuringUpToken.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' x='b' {<writeln("\"conjured=\"+$x")>} 'c' ;

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/ConjuringUpTokenFromSet.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' x=('b'|'c') {<writeln("\"conjured=\"+$x")>} 'd' ;

8
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/ContextListGetters.st Normal file
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@ -0,0 +1,8 @@
grammar <grammarName>;
@parser::members{
<declareContextListGettersFunction()>
}
s : (a | b)+;
a : 'a' {<write("'a'")>};
b : 'b' {<write("'b'")>};
;

6
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/DuplicatedLeftRecursiveCall.st Normal file
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@ -0,0 +1,6 @@
grammar <grammarName>;
start : expr EOF;
expr : 'x'
| expr expr
;
;

6
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/InvalidATNStateRemoval.st Normal file
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@ -0,0 +1,6 @@
grammar <grammarName>;
start : ID ':' expr;
expr : primary expr? {<pass()>} | expr '->' ID;
primary : ID;
ID : [a-z]+;
;

4
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/InvalidEmptyInput.st Normal file
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@ -0,0 +1,4 @@
grammar <grammarName>;
start : ID+;
ID : [a-z]+;
;

14
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/LL1ErrorInfo.st Normal file
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@ -0,0 +1,14 @@
grammar <grammarName>;
start : animal (AND acClass)? service EOF;
animal : (DOG | CAT );
service : (HARDWARE | SOFTWARE) ;
AND : 'and';
DOG : 'dog';
CAT : 'cat';
HARDWARE: 'hardware';
SOFTWARE: 'software';
WS : ' ' -> skip ;
acClass
@init
{<getExpectedTokenNames():writeln()>}
: ;

5
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/LL2.st Normal file
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@ -0,0 +1,5 @@
grammar <grammarName>;
a : 'a' 'b'
| 'a' 'c'
;
q : 'e' ;

5
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/LL3.st Normal file
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@ -0,0 +1,5 @@
grammar <grammarName>;
a : 'a' 'b'* 'c'
| 'a' 'b' 'd'
;
q : 'e' ;

5
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/LLStar.st Normal file
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@ -0,0 +1,5 @@
grammar <grammarName>;
a : 'a'+ 'b'
| 'a'+ 'c'
;
q : 'e' ;

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/MultiTokenDeletionBeforeLoop.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' 'b'* 'c';

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/MultiTokenDeletionBeforeLoop2.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' ('b'|'z'{<pass()>})* 'c';

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/MultiTokenDeletionDuringLoop.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' 'b'* 'c' ;

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/MultiTokenDeletionDuringLoop2.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' ('b'|'z'{<pass()>})* 'c' ;

7
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/NoViableAltAvoidance.st Normal file
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@ -0,0 +1,7 @@
grammar <grammarName>;
s : e '!' ;
e : 'a' 'b'
| 'a'
;
DOT : '.' ;
WS : [ \t\r\n]+ -> skip;

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/SingleSetInsertion.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' ('b'|'c') 'd' ;

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/SingleTokenDeletion.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' 'b' ;

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/SingleTokenDeletionBeforeLoop.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' 'b'* ;

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/SingleTokenDeletionBeforeLoop2.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' ('b'|'z'{<pass()>})*;

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/SingleTokenDeletionDuringLoop.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' 'b'* 'c' ;

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/SingleTokenDeletionDuringLoop2.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' ('b'|'z'{<pass()>})* 'c' ;

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/SingleTokenDeletionExpectingSet.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' ('b'|'c') ;

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/SingleTokenInsertion.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' 'b' 'c' ;

2
tool/test/org/antlr/v4/testgen/grammars/ParserErrors/TokenMismatch.st Normal file
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@ -0,0 +1,2 @@
grammar <grammarName>;
a : 'a' 'b' ;