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Add tests for alternative precedence in left-recursive transformation

This commit is contained in:
Michael Peyton Jones 2016-02-22 12:48:48 +00:00
parent d0fb48c2b8
commit b1b2579621
9 changed files with 296 additions and 0 deletions
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2
runtime-testsuite/resources/org/antlr/v4/test/runtime/templates/LeftRecursion/Index.stg
View File

@ -59,6 +59,8 @@ TestTemplates ::= [
"MultipleAlternativesWithCommonLabel_2": [], "MultipleAlternativesWithCommonLabel_2": [],
"MultipleAlternativesWithCommonLabel_3": [], "MultipleAlternativesWithCommonLabel_3": [],
"MultipleAlternativesWithCommonLabel_4": [], "MultipleAlternativesWithCommonLabel_4": [],
"PrefixAndOtherAlt_1": [],
"PrefixAndOtherAlt_2": [],
"PrefixOpWithActionAndLabel_1": [], "PrefixOpWithActionAndLabel_1": [],
"PrefixOpWithActionAndLabel_2": [], "PrefixOpWithActionAndLabel_2": [],
"PrefixOpWithActionAndLabel_3": [], "PrefixOpWithActionAndLabel_3": [],

24
runtime-testsuite/resources/org/antlr/v4/test/runtime/templates/LeftRecursion/PrefixAndOtherAlt.stg Normal file
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@ -0,0 +1,24 @@
TestType() ::= "Parser"
Options ::= [
"Debug": false
]
Grammar ::= [
"T": {<grammar("T")>}
]
Rule() ::= "s"
grammar(grammarName) ::= <<
grammar <grammarName>;
s @after {<ToStringTree("$ctx"):writeln()>} : expr EOF ;
expr : literal
| op expr
| expr op expr
;
literal : '-'? Integer ;
op : '+' | '-' ;
Integer : [0-9]+ ;
WS : (' '|'\n') -> skip ;
>>

9
runtime-testsuite/resources/org/antlr/v4/test/runtime/templates/LeftRecursion/PrefixAndOtherAlt_1.stg Normal file
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@ -0,0 +1,9 @@
import "PrefixAndOtherAlt.stg"
Input() ::= "-1"
Output() ::= <<
(s (expr (literal - 1)) \<EOF>)<\n>
>>
Errors() ::= ""

9
runtime-testsuite/resources/org/antlr/v4/test/runtime/templates/LeftRecursion/PrefixAndOtherAlt_2.stg Normal file
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@ -0,0 +1,9 @@
import "PrefixAndOtherAlt.stg"
Input() ::= "-1 + -1"
Output() ::= <<
(s (expr (expr (literal - 1)) (op +) (expr (literal - 1))) \<EOF>)<\n>
>>
Errors() ::= ""

44
runtime-testsuite/test/org/antlr/v4/test/runtime/csharp/TestLeftRecursion.java
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@ -1801,6 +1801,50 @@ public class TestLeftRecursion extends BaseTest {
assertEquals("(prog (statement (letterA a)) (statement (letterA a)) <EOF>)\n", found); assertEquals("(prog (statement (letterA a)) (statement (letterA a)) <EOF>)\n", found);
assertNull(this.stderrDuringParse); assertNull(this.stderrDuringParse);
}
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test
public void testPrefixAndOtherAlt_1() throws Exception {
mkdir(tmpdir);
StringBuilder grammarBuilder = new StringBuilder(223);
grammarBuilder.append("grammar T;\n");
grammarBuilder.append("s @after {Console.WriteLine($ctx.ToStringTree(this));} : expr EOF ; \n");
grammarBuilder.append("expr : literal\n");
grammarBuilder.append(" | op expr\n");
grammarBuilder.append(" | expr op expr\n");
grammarBuilder.append(" ;\n");
grammarBuilder.append("literal : '-'? Integer ;\n");
grammarBuilder.append("op : '+' | '-' ;\n");
grammarBuilder.append("Integer : [0-9]+ ;\n");
grammarBuilder.append("WS : (' '|'\\n') -> skip ;");
String grammar = grammarBuilder.toString();
String input ="-1";
String found = execParser("T.g4", grammar, "TParser", "TLexer", "s", input, false);
assertEquals("(s (expr (literal - 1)) <EOF>)\n", found);
assertNull(this.stderrDuringParse);
}
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test
public void testPrefixAndOtherAlt_2() throws Exception {
mkdir(tmpdir);
StringBuilder grammarBuilder = new StringBuilder(223);
grammarBuilder.append("grammar T;\n");
grammarBuilder.append("s @after {Console.WriteLine($ctx.ToStringTree(this));} : expr EOF ; \n");
grammarBuilder.append("expr : literal\n");
grammarBuilder.append(" | op expr\n");
grammarBuilder.append(" | expr op expr\n");
grammarBuilder.append(" ;\n");
grammarBuilder.append("literal : '-'? Integer ;\n");
grammarBuilder.append("op : '+' | '-' ;\n");
grammarBuilder.append("Integer : [0-9]+ ;\n");
grammarBuilder.append("WS : (' '|'\\n') -> skip ;");
String grammar = grammarBuilder.toString();
String input ="-1 + -1";
String found = execParser("T.g4", grammar, "TParser", "TLexer", "s", input, false);
assertEquals("(s (expr (expr (literal - 1)) (op +) (expr (literal - 1))) <EOF>)\n", found);
assertNull(this.stderrDuringParse);
} }
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */ /* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test @Test

52
runtime-testsuite/test/org/antlr/v4/test/runtime/java/TestLeftRecursion.java
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@ -2007,6 +2007,58 @@ public class TestLeftRecursion extends BaseTest {
} }
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test
public void testPrefixAndOtherAlt_1() throws Exception {
mkdir(tmpdir);
StringBuilder grammarBuilder = new StringBuilder(224);
grammarBuilder.append("grammar T;\n");
grammarBuilder.append("s @after {System.out.println($ctx.toStringTree(this));} : expr EOF ; \n");
grammarBuilder.append("expr : literal\n");
grammarBuilder.append(" | op expr\n");
grammarBuilder.append(" | expr op expr\n");
grammarBuilder.append(" ;\n");
grammarBuilder.append("literal : '-'? Integer ;\n");
grammarBuilder.append("op : '+' | '-' ;\n");
grammarBuilder.append("Integer : [0-9]+ ;\n");
grammarBuilder.append("WS : (' '|'\\n') -> skip ;");
String grammar = grammarBuilder.toString();
String input ="-1";
String found = execParser("T.g4", grammar, "TParser", "TLexer", "s", input, false);
assertEquals("(s (expr (literal - 1)) <EOF>)\n", found);
assertNull(this.stderrDuringParse);
}
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test
public void testPrefixAndOtherAlt_2() throws Exception {
mkdir(tmpdir);
StringBuilder grammarBuilder = new StringBuilder(224);
grammarBuilder.append("grammar T;\n");
grammarBuilder.append("s @after {System.out.println($ctx.toStringTree(this));} : expr EOF ; \n");
grammarBuilder.append("expr : literal\n");
grammarBuilder.append(" | op expr\n");
grammarBuilder.append(" | expr op expr\n");
grammarBuilder.append(" ;\n");
grammarBuilder.append("literal : '-'? Integer ;\n");
grammarBuilder.append("op : '+' | '-' ;\n");
grammarBuilder.append("Integer : [0-9]+ ;\n");
grammarBuilder.append("WS : (' '|'\\n') -> skip ;");
String grammar = grammarBuilder.toString();
String input ="-1 + -1";
String found = execParser("T.g4", grammar, "TParser", "TLexer", "s", input, false);
assertEquals("(s (expr (expr (literal - 1)) (op +) (expr (literal - 1))) <EOF>)\n", found);
assertNull(this.stderrDuringParse);
}
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */ /* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test @Test
public void testPrefixOpWithActionAndLabel_1() throws Exception { public void testPrefixOpWithActionAndLabel_1() throws Exception {

48
runtime-testsuite/test/org/antlr/v4/test/runtime/javascript/node/TestLeftRecursion.java
View File

@ -1905,6 +1905,54 @@ public class TestLeftRecursion extends BaseTest {
assertEquals("(prog (statement (letterA a)) (statement (letterA a)) <EOF>)\n", found); assertEquals("(prog (statement (letterA a)) (statement (letterA a)) <EOF>)\n", found);
assertNull(this.stderrDuringParse); assertNull(this.stderrDuringParse);
}
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test
public void testPrefixAndOtherAlt_1() throws Exception {
mkdir(tmpdir);
StringBuilder grammarBuilder = new StringBuilder(223);
grammarBuilder.append("grammar T;\n");
grammarBuilder.append("s @after {console.log($ctx.toStringTree(null, this));} : expr EOF ; \n");
grammarBuilder.append("expr : literal\n");
grammarBuilder.append(" | op expr\n");
grammarBuilder.append(" | expr op expr\n");
grammarBuilder.append(" ;\n");
grammarBuilder.append("literal : '-'? Integer ;\n");
grammarBuilder.append("op : '+' | '-' ;\n");
grammarBuilder.append("Integer : [0-9]+ ;\n");
grammarBuilder.append("WS : (' '|'\\n') -> skip ;");
String grammar = grammarBuilder.toString();
String input ="-1";
String found = execParser("T.g4", grammar, "TParser", "TLexer",
"TListener", "TVisitor",
"s", input, false);
assertEquals("(s (expr (literal - 1)) <EOF>)\n", found);
assertNull(this.stderrDuringParse);
}
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test
public void testPrefixAndOtherAlt_2() throws Exception {
mkdir(tmpdir);
StringBuilder grammarBuilder = new StringBuilder(223);
grammarBuilder.append("grammar T;\n");
grammarBuilder.append("s @after {console.log($ctx.toStringTree(null, this));} : expr EOF ; \n");
grammarBuilder.append("expr : literal\n");
grammarBuilder.append(" | op expr\n");
grammarBuilder.append(" | expr op expr\n");
grammarBuilder.append(" ;\n");
grammarBuilder.append("literal : '-'? Integer ;\n");
grammarBuilder.append("op : '+' | '-' ;\n");
grammarBuilder.append("Integer : [0-9]+ ;\n");
grammarBuilder.append("WS : (' '|'\\n') -> skip ;");
String grammar = grammarBuilder.toString();
String input ="-1 + -1";
String found = execParser("T.g4", grammar, "TParser", "TLexer",
"TListener", "TVisitor",
"s", input, false);
assertEquals("(s (expr (expr (literal - 1)) (op +) (expr (literal - 1))) <EOF>)\n", found);
assertNull(this.stderrDuringParse);
} }
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */ /* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test @Test

54
runtime-testsuite/test/org/antlr/v4/test/runtime/python2/TestLeftRecursion.java
View File

@ -2058,6 +2058,60 @@ public class TestLeftRecursion extends BasePython2Test {
} }
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test
public void testPrefixAndOtherAlt_1() throws Exception {
mkdir(tmpdir);
StringBuilder grammarBuilder = new StringBuilder(216);
grammarBuilder.append("grammar T;\n");
grammarBuilder.append("s @after {print($ctx.toStringTree(recog=self))} : expr EOF ; \n");
grammarBuilder.append("expr : literal\n");
grammarBuilder.append(" | op expr\n");
grammarBuilder.append(" | expr op expr\n");
grammarBuilder.append(" ;\n");
grammarBuilder.append("literal : '-'? Integer ;\n");
grammarBuilder.append("op : '+' | '-' ;\n");
grammarBuilder.append("Integer : [0-9]+ ;\n");
grammarBuilder.append("WS : (' '|'\\n') -> skip ;");
String grammar = grammarBuilder.toString();
String input ="-1";
String found = execParser("T.g4", grammar, "TParser", "TLexer", "TListener", "TVisitor", "s", input, false);
assertEquals("(s (expr (literal - 1)) <EOF>)\n", found);
assertNull(this.stderrDuringParse);
}
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test
public void testPrefixAndOtherAlt_2() throws Exception {
mkdir(tmpdir);
StringBuilder grammarBuilder = new StringBuilder(216);
grammarBuilder.append("grammar T;\n");
grammarBuilder.append("s @after {print($ctx.toStringTree(recog=self))} : expr EOF ; \n");
grammarBuilder.append("expr : literal\n");
grammarBuilder.append(" | op expr\n");
grammarBuilder.append(" | expr op expr\n");
grammarBuilder.append(" ;\n");
grammarBuilder.append("literal : '-'? Integer ;\n");
grammarBuilder.append("op : '+' | '-' ;\n");
grammarBuilder.append("Integer : [0-9]+ ;\n");
grammarBuilder.append("WS : (' '|'\\n') -> skip ;");
String grammar = grammarBuilder.toString();
String input ="-1 + -1";
String found = execParser("T.g4", grammar, "TParser", "TLexer", "TListener", "TVisitor", "s", input, false);
assertEquals("(s (expr (expr (literal - 1)) (op +) (expr (literal - 1))) <EOF>)\n", found);
assertNull(this.stderrDuringParse);
}
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */ /* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test @Test
public void testPrefixOpWithActionAndLabel_1() throws Exception { public void testPrefixOpWithActionAndLabel_1() throws Exception {

54
runtime-testsuite/test/org/antlr/v4/test/runtime/python3/TestLeftRecursion.java
View File

@ -2058,6 +2058,60 @@ public class TestLeftRecursion extends BasePython3Test {
} }
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test
public void testPrefixAndOtherAlt_1() throws Exception {
mkdir(tmpdir);
StringBuilder grammarBuilder = new StringBuilder(216);
grammarBuilder.append("grammar T;\n");
grammarBuilder.append("s @after {print($ctx.toStringTree(recog=self))} : expr EOF ; \n");
grammarBuilder.append("expr : literal\n");
grammarBuilder.append(" | op expr\n");
grammarBuilder.append(" | expr op expr\n");
grammarBuilder.append(" ;\n");
grammarBuilder.append("literal : '-'? Integer ;\n");
grammarBuilder.append("op : '+' | '-' ;\n");
grammarBuilder.append("Integer : [0-9]+ ;\n");
grammarBuilder.append("WS : (' '|'\\n') -> skip ;");
String grammar = grammarBuilder.toString();
String input ="-1";
String found = execParser("T.g4", grammar, "TParser", "TLexer", "TListener", "TVisitor", "s", input, false);
assertEquals("(s (expr (literal - 1)) <EOF>)\n", found);
assertNull(this.stderrDuringParse);
}
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test
public void testPrefixAndOtherAlt_2() throws Exception {
mkdir(tmpdir);
StringBuilder grammarBuilder = new StringBuilder(216);
grammarBuilder.append("grammar T;\n");
grammarBuilder.append("s @after {print($ctx.toStringTree(recog=self))} : expr EOF ; \n");
grammarBuilder.append("expr : literal\n");
grammarBuilder.append(" | op expr\n");
grammarBuilder.append(" | expr op expr\n");
grammarBuilder.append(" ;\n");
grammarBuilder.append("literal : '-'? Integer ;\n");
grammarBuilder.append("op : '+' | '-' ;\n");
grammarBuilder.append("Integer : [0-9]+ ;\n");
grammarBuilder.append("WS : (' '|'\\n') -> skip ;");
String grammar = grammarBuilder.toString();
String input ="-1 + -1";
String found = execParser("T.g4", grammar, "TParser", "TLexer", "TListener", "TVisitor", "s", input, false);
assertEquals("(s (expr (expr (literal - 1)) (op +) (expr (literal - 1))) <EOF>)\n", found);
assertNull(this.stderrDuringParse);
}
/* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */ /* This file and method are generated by TestGenerator, any edits will be overwritten by the next generation. */
@Test @Test
public void testPrefixOpWithActionAndLabel_1() throws Exception { public void testPrefixOpWithActionAndLabel_1() throws Exception {