| java.lang.Object
 persistence.antlr.CodeGenerator
persistence.antlr.CppCodeGenerator
| CppCodeGenerator | | public class CppCodeGenerator extends CodeGenerator (Code) | | Generate MyParser.cpp, MyParser.hpp, MyLexer.cpp, MyLexer.hpp
and MyParserTokenTypes.hpp
|
| Constructor Summary | |
| public | CppCodeGenerator()
Create a C++ code-generator using the given Grammar. |
| Method Summary | |
| protected void | _print(String s)
Output a String to the currentOutput stream. | | protected void | _printAction(String s)
Print an action without leading tabs, attempting to
preserve the current indentation level for multi-line actions
Ignored if string is null. | | protected void | _println(String s)
Output a String followed by newline, to the currentOutput stream. | | protected int | addSemPred(String predicate)
Adds a semantic predicate string to the sem pred vector
These strings will be used to build an array of sem pred names
when building a debugging parser. | | protected int | countLines(String s)
| | public void | exitIfError()
| | public void | gen()
| | public void | gen(ActionElement action)
Generate code for the given grammar element. | | public void | gen(AlternativeBlock blk)
Generate code for the given grammar element. | | public void | gen(BlockEndElement end)
Generate code for the given grammar element.
Parameters:
blk - The block-end element to generate. | | public void | gen(CharLiteralElement atom)
Generate code for the given grammar element. | | public void | gen(CharRangeElement r)
Generate code for the given grammar element. | | public void | gen(LexerGrammar g)
| | public void | gen(OneOrMoreBlock blk)
Generate code for the given grammar element. | | public void | gen(ParserGrammar g)
| | public void | gen(RuleRefElement rr)
Generate code for the given grammar element. | | public void | gen(StringLiteralElement atom)
Generate code for the given grammar element. | | public void | gen(TokenRangeElement r)
Generate code for the given grammar element. | | public void | gen(TokenRefElement atom)
Generate code for the given grammar element. | | public void | gen(TreeElement t)
| | public void | gen(TreeWalkerGrammar g)
| | public void | gen(WildcardElement wc)
Generate code for the given grammar element. | | public void | gen(ZeroOrMoreBlock blk)
Generate code for the given grammar element. | | protected void | genASTDeclaration(AlternativeElement el)
| | protected void | genASTDeclaration(AlternativeElement el, String node_type)
| | protected void | genASTDeclaration(AlternativeElement el, String var_name, String node_type)
| | protected void | genAlt(Alternative alt, AlternativeBlock blk)
Generate an alternative. | | protected void | genBitsets(Vector bitsetList, int maxVocabulary, String prefix)
Generate all the bitsets to be used in the parser or lexer
Generate the raw bitset data like "long _tokenSet1_data[] = {...};"
and the BitSet object declarations like
"BitSet _tokenSet1 = new BitSet(_tokenSet1_data);"
Note that most languages do not support object initialization inside a
class definition, so other code-generators may have to separate the
bitset declarations from the initializations (e.g., put the
initializations in the generated constructor instead). | | protected void | genBitsetsHeader(Vector bitsetList, int maxVocabulary)
| | protected void | genBlockInitAction(AlternativeBlock blk)
Generate the initaction for a block, which may be a RuleBlock or a
plain AlternativeBLock. | | protected void | genBlockPreamble(AlternativeBlock blk)
Generate the header for a block, which may be a RuleBlock or a
plain AlternativeBlock. | | public void | genBody(LexerGrammar g)
| | public void | genBody(ParserGrammar g)
| | public void | genBody(TreeWalkerGrammar g)
| | protected void | genCases(BitSet p)
Generate a series of case statements that implement a BitSet test. | | public CppBlockFinishingInfo | genCommonBlock(AlternativeBlock blk, boolean noTestForSingle)
Generate common code for a block of alternatives; return a postscript
that needs to be generated at the end of the block. | | protected void | genHeader(String fileName)
| | public void | genInclude(LexerGrammar g)
| | public void | genInclude(ParserGrammar g)
| | public void | genInclude(TreeWalkerGrammar g)
| | public void | genInitFactory(Grammar g)
| | public void | genLineNo(int line)
| | public void | genLineNo(GrammarElement el)
| | public void | genLineNo(Token t)
| | public void | genLineNo2()
| | protected void | genMatch(BitSet b)
| | protected void | genMatch(GrammarAtom atom)
| | protected void | genMatchUsingAtomText(GrammarAtom atom)
| | protected void | genMatchUsingAtomTokenType(GrammarAtom atom)
| | public void | genNextToken()
Generate the nextToken() rule. | | public void | genRule(RuleSymbol s, boolean startSymbol, int ruleNum, String prefix)
Gen a named rule block. | | public void | genRuleHeader(RuleSymbol s, boolean startSymbol)
| | protected void | genSemPred(String pred, int line)
| | protected void | genSemPredMap(String prefix)
Write an array of Strings which are the semantic predicate
expressions. | | protected void | genSynPred(SynPredBlock blk, String lookaheadExpr)
| | public void | genTokenStrings(String prefix)
Generate a static array containing the names of the tokens,
indexed by the token type values. | | protected void | genTokenTypes(TokenManager tm)
| | public String | getASTCreateString(Vector v)
Get a string for an expression to generate creation of an AST subtree. | | public String | getASTCreateString(GrammarAtom atom, String str)
| | public String | getASTCreateString(String str)
| | protected String | getLookaheadTestExpression(Lookahead[] look, int k)
| | protected String | getLookaheadTestExpression(Alternative alt, int maxDepth)
Generate a lookahead test expression for an alternate. | | protected String | getLookaheadTestTerm(int k, BitSet p)
Generate a depth==1 lookahead test expression given the BitSet. | | public String | getRangeExpression(int k, int[] elems)
Return an expression for testing a contiguous renage of elements
Parameters:
k - The lookahead level
Parameters:
elems - The elements representing the set, usually from BitSet.toArray(). | | protected boolean | lookaheadIsEmpty(Alternative alt, int maxDepth)
| | public String | mapTreeId(String idParam, ActionTransInfo transInfo)
Map an identifier to it's corresponding tree-node variable. | | public void | printAction(Token t)
| | public void | printHeaderAction(String name)
| | protected void | println(String s)
Output tab indent followed by a String followed by newline,
to the currentOutput stream. | | protected String | processActionForSpecialSymbols(String actionStr, int line, RuleBlock currentRule, ActionTransInfo tInfo)
Lexically process tree-specifiers in the action. | | public String | processStringForASTConstructor(String str)
Process a string for an simple expression for use in xx/action.g
it is used to cast simple tokens/references to the right type for
the generated language. |
| DEBUG_CPP_CODE_GENERATOR | | boolean DEBUG_CPP_CODE_GENERATOR(Code) | | |
| astVarNumber | | int astVarNumber(Code) | | |
| caseSizeThreshold | | final public static int caseSizeThreshold(Code) | | |
| declaredASTVariables | | Hashtable declaredASTVariables(Code) | | Used to keep track of which AST variables have been defined in a rule
(except for the #rule_name and #rule_name_in var's
|
| genAST | | protected boolean genAST(Code) | | |
| genHashLines | | protected boolean genHashLines(Code) | | |
| noConstructors | | protected boolean noConstructors(Code) | | |
| outputLine | | protected int outputLine(Code) | | |
| saveText | | protected boolean saveText(Code) | | |
| syntacticPredLevel | | protected int syntacticPredLevel(Code) | | |
| usingCustomAST | | boolean usingCustomAST(Code) | | |
| CppCodeGenerator | | public CppCodeGenerator()(Code) | | Create a C++ code-generator using the given Grammar.
The caller must still call setTool, setBehavior, and setAnalyzer
before generating code.
|
| _print | | protected void _print(String s)(Code) | | Output a String to the currentOutput stream.
Ignored if string is null.
Parameters:
s - The string to output |
| _printAction | | protected void _printAction(String s)(Code) | | Print an action without leading tabs, attempting to
preserve the current indentation level for multi-line actions
Ignored if string is null.
Parameters:
s - The action string to output |
| _println | | protected void _println(String s)(Code) | | Output a String followed by newline, to the currentOutput stream.
Ignored if string is null.
Parameters:
s - The string to output |
| addSemPred | | protected int addSemPred(String predicate)(Code) | | Adds a semantic predicate string to the sem pred vector
These strings will be used to build an array of sem pred names
when building a debugging parser. This method should only be
called when the debug option is specified
|
| exitIfError | | public void exitIfError()(Code) | | |
| gen | | public void gen()(Code) | | Generate the parser, lexer, treeparser, and token types in C++
|
| gen | | public void gen(ActionElement action)(Code) | | Generate code for the given grammar element.
Parameters:
blk - The {...} action to generate |
| gen | | public void gen(AlternativeBlock blk)(Code) | | Generate code for the given grammar element.
Parameters:
blk - The "x|y|z|..." block to generate |
| gen | | public void gen(BlockEndElement end)(Code) | | Generate code for the given grammar element.
Parameters:
blk - The block-end element to generate. Block-endelements are synthesized by the grammar parser to representthe end of a block. |
| gen | | public void gen(CharLiteralElement atom)(Code) | | Generate code for the given grammar element.
Parameters:
blk - The character literal reference to generate |
| gen | | public void gen(CharRangeElement r)(Code) | | Generate code for the given grammar element.
Parameters:
blk - The character-range reference to generate |
| gen | | public void gen(OneOrMoreBlock blk)(Code) | | Generate code for the given grammar element.
Parameters:
blk - The (...)+ block to generate |
| gen | | public void gen(RuleRefElement rr)(Code) | | Generate code for the given grammar element.
Parameters:
blk - The rule-reference to generate |
| gen | | public void gen(StringLiteralElement atom)(Code) | | Generate code for the given grammar element.
Parameters:
blk - The string-literal reference to generate |
| gen | | public void gen(TokenRangeElement r)(Code) | | Generate code for the given grammar element.
Parameters:
blk - The token-range reference to generate |
| gen | | public void gen(TokenRefElement atom)(Code) | | Generate code for the given grammar element.
Parameters:
blk - The token-reference to generate |
| gen | | public void gen(WildcardElement wc)(Code) | | Generate code for the given grammar element.
Parameters:
wc - The wildcard element to generate |
| gen | | public void gen(ZeroOrMoreBlock blk)(Code) | | Generate code for the given grammar element.
Parameters:
blk - The (...)* block to generate |
| genAlt | | protected void genAlt(Alternative alt, AlternativeBlock blk)(Code) | | Generate an alternative.
Parameters:
alt - The alternative to generate
Parameters:
blk - The block to which the alternative belongs |
| genBitsets | | protected void genBitsets(Vector bitsetList, int maxVocabulary, String prefix)(Code) | | Generate all the bitsets to be used in the parser or lexer
Generate the raw bitset data like "long _tokenSet1_data[] = {...};"
and the BitSet object declarations like
"BitSet _tokenSet1 = new BitSet(_tokenSet1_data);"
Note that most languages do not support object initialization inside a
class definition, so other code-generators may have to separate the
bitset declarations from the initializations (e.g., put the
initializations in the generated constructor instead).
Parameters:
bitsetList - The list of bitsets to generate.
Parameters:
maxVocabulary - Ensure that each generated bitset can contain atleast this value.
Parameters:
prefix - string glued in from of bitset names used for namespacequalifications. |
| genBitsetsHeader | | protected void genBitsetsHeader(Vector bitsetList, int maxVocabulary)(Code) | | |
| genBlockInitAction | | protected void genBlockInitAction(AlternativeBlock blk)(Code) | | Generate the initaction for a block, which may be a RuleBlock or a
plain AlternativeBLock.
|
| genBlockPreamble | | protected void genBlockPreamble(AlternativeBlock blk)(Code) | | Generate the header for a block, which may be a RuleBlock or a
plain AlternativeBlock. This generates any variable declarations
and syntactic-predicate-testing variables.
|
| genCases | | protected void genCases(BitSet p)(Code) | | Generate a series of case statements that implement a BitSet test.
Parameters:
p - The Bitset for which cases are to be generated |
| genCommonBlock | | public CppBlockFinishingInfo genCommonBlock(AlternativeBlock blk, boolean noTestForSingle)(Code) | | Generate common code for a block of alternatives; return a postscript
that needs to be generated at the end of the block. Other routines
may append else-clauses and such for error checking before the postfix
is generated.
If the grammar is a lexer, then generate alternatives in an order where
alternatives requiring deeper lookahead are generated first, and
EOF in the lookahead set reduces the depth of the lookahead.
Parameters:
blk - The block to generate
Parameters:
noTestForSingle - If true, then it does not generate a test for a single alternative. |
| genHeader | | protected void genHeader(String fileName)(Code) | | Generate a header that is common to all C++ files
|
| genLineNo | | public void genLineNo(int line)(Code) | | Generate a #line or // line depending on options
|
| genLineNo | | public void genLineNo(GrammarElement el)(Code) | | Generate a #line or // line depending on options
|
| genLineNo | | public void genLineNo(Token t)(Code) | | Generate a #line or // line depending on options
|
| genLineNo2 | | public void genLineNo2()(Code) | | Generate a #line or // line depending on options
|
| genMatchUsingAtomTokenType | | protected void genMatchUsingAtomTokenType(GrammarAtom atom)(Code) | | |
| genNextToken | | public void genNextToken()(Code) | | Generate the nextToken() rule.
nextToken() is a synthetic lexer rule that is the implicit OR of all
user-defined lexer rules.
Parameters:
RuleBlock - |
| genRule | | public void genRule(RuleSymbol s, boolean startSymbol, int ruleNum, String prefix)(Code) | | Gen a named rule block.
ASTs are generated for each element of an alternative unless
the rule or the alternative have a '!' modifier.
If an alternative defeats the default tree construction, it
must set _AST to the root of the returned AST.
Each alternative that does automatic tree construction, builds
up root and child list pointers in an ASTPair structure.
A rule finishes by setting the returnAST variable from the
ASTPair.
Parameters:
rule - The name of the rule to generate
Parameters:
startSymbol - true if the rule is a start symbol (i.e., not referenced elsewhere) |
| genSemPred | | protected void genSemPred(String pred, int line)(Code) | | |
| genSemPredMap | | protected void genSemPredMap(String prefix)(Code) | | Write an array of Strings which are the semantic predicate
expressions. The debugger will reference them by number only
|
| genTokenStrings | | public void genTokenStrings(String prefix)(Code) | | Generate a static array containing the names of the tokens,
indexed by the token type values. This static array is used
to format error messages so that the token identifers or literal
strings are displayed instead of the token numbers.
If a lexical rule has a paraphrase, use it rather than the
token label.
|
| getASTCreateString | | public String getASTCreateString(Vector v)(Code) | | Get a string for an expression to generate creation of an AST subtree.
Parameters:
v - A Vector of String, where each element is an expressionin the target language yielding an AST node. |
| getASTCreateString | | public String getASTCreateString(GrammarAtom atom, String str)(Code) | | Get a string for an expression to generate creating of an AST node
Parameters:
str - The arguments to the AST constructor |
| getASTCreateString | | public String getASTCreateString(String str)(Code) | | Get a string for an expression to generate creating of an AST node
Parameters:
str - The arguments to the AST constructor |
| getLookaheadTestExpression | | protected String getLookaheadTestExpression(Alternative alt, int maxDepth)(Code) | | Generate a lookahead test expression for an alternate. This
will be a series of tests joined by '&&' and enclosed by '()',
the number of such tests being determined by the depth of the lookahead.
|
| getLookaheadTestTerm | | protected String getLookaheadTestTerm(int k, BitSet p)(Code) | | Generate a depth==1 lookahead test expression given the BitSet.
This may be one of:
1) a series of 'x==X||' tests
2) a range test using >= && <= where possible,
3) a bitset membership test for complex comparisons
Parameters:
k - The lookahead level
Parameters:
p - The lookahead set for level k |
| getRangeExpression | | public String getRangeExpression(int k, int[] elems)(Code) | | Return an expression for testing a contiguous renage of elements
Parameters:
k - The lookahead level
Parameters:
elems - The elements representing the set, usually from BitSet.toArray(). String containing test expression. |
| lookaheadIsEmpty | | protected boolean lookaheadIsEmpty(Alternative alt, int maxDepth)(Code) | | Is the lookahead for this alt empty?
|
| mapTreeId | | public String mapTreeId(String idParam, ActionTransInfo transInfo)(Code) | | Map an identifier to it's corresponding tree-node variable.
This is context-sensitive, depending on the rule and alternative
being generated
Parameters:
idParam - The identifier name to map The mapped id (which may be the same as the input), or null if the mapping is invalid due to duplicates |
| printAction | | public void printAction(Token t)(Code) | | Print an action stored in a token surrounded by #line stuff
|
| printHeaderAction | | public void printHeaderAction(String name)(Code) | | Print a header action by #line stuff also process any tree construction
Parameters:
name - The name of the header part |
| println | | protected void println(String s)(Code) | | Output tab indent followed by a String followed by newline,
to the currentOutput stream. Ignored if string is null.
Parameters:
s - The string to output |
| processActionForSpecialSymbols | | protected String processActionForSpecialSymbols(String actionStr, int line, RuleBlock currentRule, ActionTransInfo tInfo)(Code) | | Lexically process tree-specifiers in the action.
This will replace #id and #(...) with the appropriate
function calls and/or variables.
|
| processStringForASTConstructor | | public String processStringForASTConstructor(String str)(Code) | | Process a string for an simple expression for use in xx/action.g
it is used to cast simple tokens/references to the right type for
the generated language. Basically called for every element in
the vector to getASTCreateString(vector V)
Parameters:
str - A String. |
| Methods inherited from persistence.antlr.CodeGenerator | protected void _print(String s)(Code)(Java Doc)
protected void _printAction(String s)(Code)(Java Doc)
protected void _println(String s)(Code)(Java Doc)
public static String decodeLexerRuleName(String id)(Code)(Java Doc)
public static boolean elementsAreRange(int[] elems)(Code)(Java Doc)
public static String encodeLexerRuleName(String id)(Code)(Java Doc)
protected String extractIdOfAction(Token t)(Code)(Java Doc)
protected String extractIdOfAction(String s, int line, int column)(Code)(Java Doc)
protected String extractTypeOfAction(Token t)(Code)(Java Doc)
protected String extractTypeOfAction(String s, int line, int column)(Code)(Java Doc)
abstract public void gen()(Code)(Java Doc)
abstract public void gen(ActionElement action)(Code)(Java Doc)
abstract public void gen(AlternativeBlock blk)(Code)(Java Doc)
abstract public void gen(BlockEndElement end)(Code)(Java Doc)
abstract public void gen(CharLiteralElement atom)(Code)(Java Doc)
abstract public void gen(CharRangeElement r)(Code)(Java Doc)
abstract public void gen(LexerGrammar g) throws IOException(Code)(Java Doc)
abstract public void gen(OneOrMoreBlock blk)(Code)(Java Doc)
abstract public void gen(ParserGrammar g) throws IOException(Code)(Java Doc)
abstract public void gen(RuleRefElement rr)(Code)(Java Doc)
abstract public void gen(StringLiteralElement atom)(Code)(Java Doc)
abstract public void gen(TokenRangeElement r)(Code)(Java Doc)
abstract public void gen(TokenRefElement atom)(Code)(Java Doc)
abstract public void gen(TreeElement t)(Code)(Java Doc)
abstract public void gen(TreeWalkerGrammar g) throws IOException(Code)(Java Doc)
abstract public void gen(WildcardElement wc)(Code)(Java Doc)
abstract public void gen(ZeroOrMoreBlock blk)(Code)(Java Doc)
protected void genTokenInterchange(TokenManager tm) throws IOException(Code)(Java Doc)
abstract public String getASTCreateString(Vector v)(Code)(Java Doc)
abstract public String getASTCreateString(GrammarAtom atom, String str)(Code)(Java Doc)
protected String getBitsetName(int index)(Code)(Java Doc)
public String getFIRSTBitSet(String ruleName, int k)(Code)(Java Doc)
public String getFOLLOWBitSet(String ruleName, int k)(Code)(Java Doc)
abstract public String mapTreeId(String id, ActionTransInfo tInfo)(Code)(Java Doc)
protected int markBitsetForGen(BitSet p)(Code)(Java Doc)
protected void print(String s)(Code)(Java Doc)
protected void printAction(String s)(Code)(Java Doc)
protected void printTabs()(Code)(Java Doc)
protected void println(String s)(Code)(Java Doc)
abstract protected String processActionForSpecialSymbols(String actionStr, int line, RuleBlock currentRule, ActionTransInfo tInfo)(Code)(Java Doc)
public String processStringForASTConstructor(String str)(Code)(Java Doc)
protected String removeAssignmentFromDeclaration(String d)(Code)(Java Doc)
public static String reverseLexerRuleName(String id)(Code)(Java Doc)
public void setAnalyzer(LLkGrammarAnalyzer analyzer_)(Code)(Java Doc)
public void setBehavior(DefineGrammarSymbols behavior_)(Code)(Java Doc)
protected void setGrammar(Grammar g)(Code)(Java Doc)
public void setTool(Tool tool)(Code)(Java Doc)
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