Package jaitools.jiffle.parser

Jiffle parser and support classes.

See:
Description

Interface Summary

ParsingErrorReporter	Defines methods to intercept parsing error messages.
SourceGenerator	Defines methods for classes that generate runtime Java source from compiled Jiffle scripts.

Class Summary

AbstractSourceGenerator	Base class for tree parsers that generate Jiffle runtime source.
CheckAssignments	Checks for valid use of image variables.
CheckAssignments.assignmentOp_return
CheckAssignments.identifier_return
CheckAssignments.userVar_return
CheckFunctionCalls	Checks function calls in the primary AST.
ConstantLookup	A lookup for named constants used by the Jiffle compiler.
DeferredErrorReporter	Used by the Jiffle compiler to accumulate ANTLR parsing error messages.
ErrorHandlingTreeParser	A base class for Jiffle tree parsers that want to intercept ANTLR error and warning messages.
FunctionInfo	Used by the FunctionLookup class when servicing lookup requests from the Jiffle compiler.
FunctionLookup	A lookup service used by the Jiffle compiler when parsing function calls in scripts.
JiffleLexer
JiffleParser	Jiffle language parser grammar.
JiffleParser.addExpression_return
JiffleParser.andExpression_return
JiffleParser.arguments_return
JiffleParser.assignmentExpression_return
JiffleParser.assignmentOp_return
JiffleParser.atom_return
JiffleParser.bandSpecifier_return
JiffleParser.block_return
JiffleParser.blockStatement_return
JiffleParser.compExpression_return
JiffleParser.conditionalExpression_return
JiffleParser.delimitedStatement_return
JiffleParser.eqExpression_return
JiffleParser.expression_return
JiffleParser.expressionList_return
JiffleParser.identifiedAtom_return
JiffleParser.ifCall_return
JiffleParser.imagePos_return
JiffleParser.incdecOp_return
JiffleParser.initBlock_return
JiffleParser.listLiteral_return
JiffleParser.literal_return
JiffleParser.loopCondition_return
JiffleParser.loopSet_return
JiffleParser.multExpression_return
JiffleParser.option_return
JiffleParser.optionsBlock_return
JiffleParser.optionValue_return
JiffleParser.orExpression_return
JiffleParser.pixelPos_return
JiffleParser.pixelSpecifier_return
JiffleParser.powerExpression_return
JiffleParser.prefixOp_return
JiffleParser.primaryExpression_return
JiffleParser.prog_return
JiffleParser.sequence_return
JiffleParser.statement_return
JiffleParser.unaryExpression_return
JiffleParser.varDeclaration_return
JiffleParser.xorExpression_return
MessageTable	Used by Jiffle parsers to record errors and warnings.
MultiChannelTokenStream	A TokenStream that can work with multiple active channels.
NullErrorReporter	Used by the Jiffle compiler to intercept and discard ANTLR parsing error messages.
OptionLookup	A lookup service used by the Jiffle compiler when parsing script options.
OptionsBlockReader	Transforms tokens representing variables into specific token types.
OptionsBlockReader.literal_return
OptionsBlockReader.optionValue_return
RuntimeSourceGenerator	Generates Java sources for the runtime class from the final AST.
RuntimeSourceGenerator.arithmeticOp_return
RuntimeSourceGenerator.assignmentOp_return
RuntimeSourceGenerator.bandSpecifier_return
RuntimeSourceGenerator.binaryExpression_return
RuntimeSourceGenerator.block_return
RuntimeSourceGenerator.blockStatement_return
RuntimeSourceGenerator.conditionalLoop_return
RuntimeSourceGenerator.expression_return
RuntimeSourceGenerator.expressionList_return
RuntimeSourceGenerator.foreachLoop_return
RuntimeSourceGenerator.generate_return
RuntimeSourceGenerator.imagePos_return
RuntimeSourceGenerator.imageWrite_return
RuntimeSourceGenerator.incdecOp_return
RuntimeSourceGenerator.jiffleOption_return
RuntimeSourceGenerator.listAssignment_return
RuntimeSourceGenerator.listAssignment_scope
RuntimeSourceGenerator.listLiteral_return
RuntimeSourceGenerator.listOperation_return
RuntimeSourceGenerator.literal_return
RuntimeSourceGenerator.loop_return
RuntimeSourceGenerator.optionValue_return
RuntimeSourceGenerator.pixelPos_return
RuntimeSourceGenerator.pixelSpecifier_return
RuntimeSourceGenerator.postfixOp_return
RuntimeSourceGenerator.prefixOp_return
RuntimeSourceGenerator.scalar_return
RuntimeSourceGenerator.scalarAssignment_return
RuntimeSourceGenerator.simpleStatement_return
RuntimeSourceGenerator.statement_return
RuntimeSourceGenerator.STAttrMap	allows convenient multi-value initialization: "new STAttrMap().put(...).put(...)"
RuntimeSourceGenerator.var_return
RuntimeSourceGenerator.varDeclaration_return
Symbol	Represents a symbol in a Jiffle script.
SymbolScope	Stores symbols in a Jiffle script at a single scope level.
SymbolScopeStack	Used in the Jiffle tree parser grammars to track symbols defined at different scopes in a script.
TagVars	Transforms tokens representing variables into specific token types.
TagVars.args_return
TagVars.arithmeticOp_return
TagVars.assignmentExpression_return
TagVars.assignmentOp_return
TagVars.bandSpecifier_return
TagVars.block_return
TagVars.blockStatement_return
TagVars.expression_return
TagVars.expressionList_return
TagVars.foreachLoop_return
TagVars.identifier_return
TagVars.incdecOp_return
TagVars.jiffleOption_return
TagVars.listLiteral_return
TagVars.listOperation_return
TagVars.literal_return
TagVars.logicalOp_return
TagVars.loopCondition_return
TagVars.loopSet_return
TagVars.optionValue_return
TagVars.pixelPos_return
TagVars.pixelSpecifier_return
TagVars.prefixOp_return
TagVars.scalarExpression_return
TagVars.start_return
TagVars.statement_return
TagVars.varDeclaration_return
TransformExpressions	Converts calls to proxy functions into the associated variables and converts ternary conditional expressions to if calls.
TransformExpressions.arithmeticOp_return
TransformExpressions.assignmentExpression_return
TransformExpressions.assignmentOp_return
TransformExpressions.bandSpecifier_return
TransformExpressions.block_return
TransformExpressions.blockStatement_return
TransformExpressions.expression_return
TransformExpressions.expressionList_return
TransformExpressions.identifier_return
TransformExpressions.incdecOp_return
TransformExpressions.jiffleOption_return
TransformExpressions.listLiteral_return
TransformExpressions.listOperation_return
TransformExpressions.literal_return
TransformExpressions.logicalOp_return
TransformExpressions.loopCondition_return
TransformExpressions.loopSet_return
TransformExpressions.pixelPos_return
TransformExpressions.pixelSpecifier_return
TransformExpressions.prefixOp_return
TransformExpressions.start_return
TransformExpressions.statement_return
TransformExpressions.varDeclaration_return

Enum Summary

FunctionInfo.Provider	Constants to indicate the runtime provider of a function
Level	Constants used by the Jiffle script and tree parsers to identify the level of a parser message (error or warning).
Message	Constants used by the Jiffle script and tree parsers to report errors and warnings.
ScopeType	Constants for variable scope type.
SymbolType	Constants representing the type of symbols tracked through scopes during JIffle script compilation.

Exception Summary

CompilerExitException	Used by the Jiffle compiler to force early exit from one of its parsers.
JiffleParserException	An exception thrown when the Jiffle parser aborts due to errors.
UndefinedFunctionException	An exception thrown by FunctionLookup when the Jiffle compiler is attempting to parse a call to an undefined function.
UndefinedOptionException	An exception thrown by OptionLookup when the Jiffle compiler is attempting to parse a call to an undefined option.
UnexpectedInputException	Used by Jiffle parsers to complain about unexpected input in a acript.

Package jaitools.jiffle.parser Description

Jiffle parser and support classes. In addition to the hand-written classes in this package, further parser classes are generated from the ANTLR grammars that define the language syntax and steps in Abstract Syntax Tree (AST) construction.

The Jiffle compiler works by first creating an AST from the input Jiffle script. Next, a number of tree parsers check the AST for semantic errors. This is followed by tree rewriting, in which the AST is re-structured to make it more suitable for the final step: runtime class source code generation. The resulting source code can be retrieved by the client and/or compiled into executable bytecode by Jiffle's embedded Janino compiler.