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phorge/src/infrastructure/lipsum/code/PhutilJavaCodeSnippetContextFreeGrammar.php
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PhutilJavaCodeSnippetContextFreeGrammar.php
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<?php
final class PhutilJavaCodeSnippetContextFreeGrammar
extends PhutilCLikeCodeSnippetContextFreeGrammar {
protected function buildRuleSet() {
$parent_ruleset = parent::buildRuleSet();
$rulesset = array_merge($parent_ruleset, $this->getClassRuleSets());
$rulesset[] = $this->getTypeNameGrammarSet();
$rulesset[] = $this->getNamespaceDeclGrammarSet();
$rulesset[] = $this->getNamespaceNameGrammarSet();
$rulesset[] = $this->getImportGrammarSet();
$rulesset[] = $this->getMethodReturnTypeGrammarSet();
$rulesset[] = $this->getMethodNameGrammarSet();
$rulesset[] = $this->getVarDeclGrammarSet();
$rulesset[] = $this->getClassDerivGrammarSet();
return $rulesset;
}
protected function getStartGrammarSet() {
return $this->buildGrammarSet('start',
array(
'[import, block][nmspdecl, block][classdecl, block]',
));
}
protected function getClassDeclGrammarSet() {
return $this->buildGrammarSet('classdecl',
array(
'[classinheritancemod] [visibility] class [classname][classderiv] '.
'{[classbody, indent, block]}',
'[visibility] class [classname][classderiv] '.
'{[classbody, indent, block]}',
));
}
protected function getClassDerivGrammarSet() {
return $this->buildGrammarSet('classderiv',
array(
' extends [classname]',
'',
'',
));
}
protected function getTypeNameGrammarSet() {
return $this->buildGrammarSet('type',
array(
'int',
'boolean',
'char',
'short',
'long',
'float',
'double',
'[classname]',
'[type][]',
));
}
protected function getMethodReturnTypeGrammarSet() {
return $this->buildGrammarSet('methodreturn',
array(
'[type]',
'void',
));
}
protected function getNamespaceDeclGrammarSet() {
return $this->buildGrammarSet('nmspdecl',
array(
'package [nmspname][term]',
));
}
protected function getNamespaceNameGrammarSet() {
return $this->buildGrammarSet('nmspname',
array(
'java.lang',
'java.io',
'com.example.proj.std',
'derp.example.www',
));
}
protected function getImportGrammarSet() {
return $this->buildGrammarSet('import',
array(
'import [nmspname][term]',
'import [nmspname].*[term]',
'import [nmspname].[classname][term]',
));
}
protected function getExprGrammarSet() {
$expr = parent::getExprGrammarSet();
$expr['expr'][] = 'new [classname]([funccallparam])';
$expr['expr'][] = '[methodcall]';
$expr['expr'][] = '[methodcall]';
$expr['expr'][] = '[methodcall]';
$expr['expr'][] = '[methodcall]';
// Add some 'char's
for ($ii = 0; $ii < 2; $ii++) {
$expr['expr'][] = "'".Filesystem::readRandomCharacters(1)."'";
}
return $expr;
}
protected function getStmtGrammarSet() {
$stmt = parent::getStmtGrammarSet();
$stmt['stmt'][] = '[vardecl]';
$stmt['stmt'][] = '[vardecl]';
// `try` to `throw` a `Ball`!
$stmt['stmt'][] = 'throw [classname][term]';
return $stmt;
}
protected function getPropDeclGrammarSet() {
return $this->buildGrammarSet('propdecl',
array(
'[visibility] [type] [varname][term]',
));
}
protected function getVarDeclGrammarSet() {
return $this->buildGrammarSet('vardecl',
array(
'[type] [varname][term]',
'[type] [assignment][term]',
));
}
protected function getFuncNameGrammarSet() {
return $this->buildGrammarSet('funcname',
array(
'[methodname]',
'[classname].[methodname]',
// This is just silly (too much recursion)
// '[classname].[funcname]',
// Don't do this for now, it just clutters up output (thanks to rec.)
// '[nmspname].[classname].[methodname]',
));
}
// Renamed from `funcname`
protected function getMethodNameGrammarSet() {
$funcnames = head(parent::getFuncNameGrammarSet());
return $this->buildGrammarSet('methodname', $funcnames);
}
protected function getMethodFuncDeclGrammarSet() {
return $this->buildGrammarSet('methodfuncdecl',
array(
'[methodreturn] [methodname]([funcparam]) '.
'{[methodbody, indent, block, trim=right]}',
));
}
protected function getFuncParamGrammarSet() {
return $this->buildGrammarSet('funcparam',
array(
'',
'[type] [varname]',
'[type] [varname], [type] [varname]',
'[type] [varname], [type] [varname], [type] [varname]',
));
}
protected function getAbstractMethodDeclGrammarSet() {
return $this->buildGrammarSet('abstractmethoddecl',
array(
'abstract [methodreturn] [methodname]([funcparam])[term]',
));
}
}

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