forked from phoedos/pmd
1269 lines
31 KiB
Plaintext
1269 lines
31 KiB
Plaintext
/**
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* This Objective-C grammar was copied and adapted from the Objective-C-CPD-Language Github project. (https://github.com/jkennedy1980/Objective-C-CPD-Language)
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*
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* Original author:
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* @author Michael Hall - Based on Parnel SableCC ObjectiveC grammar and javacc C grammar
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*
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* Original source file:
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* https://github.com/jkennedy1980/Objective-C-CPD-Language/blob/master/src/main/javacc/ObjC2.0.jj (commit 5b07b5cc424522e435929bbff7589c690100edf6)
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*/
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options {
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JAVA_UNICODE_ESCAPE = true;
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BUILD_PARSER=false;
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CACHE_TOKENS=true;
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STATIC=false;
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}
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PARSER_BEGIN(ObjectiveCParserImpl)
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package net.sourceforge.pmd.lang.objectivec.ast;
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/**
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* Grammar to parse ObjectiveC 2.0
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* @author Michael Hall - Based on Parnel SableCC ObjectiveC grammar and javacc C grammar
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*
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* Josh Kennedy - added CSTRING_LITERAL so parser doesn't die on CStrings.
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* Paul Taykalo - added support for 0x literals, @compatibility_alias, and the $ character identifier
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* Paul Taykalo - vertical tab (\v) and alert (\a) characters are added
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*/
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public class ObjectiveCParserImpl {}
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PARSER_END(ObjectiveCParserImpl)
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SKIP : {
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" "
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| "\t"
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| "\n"
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| "\r"
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| "\f"
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| "\\\n" /* Special issue for long strings concatenation */
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| "\\\r\n" /* Special issue for long strings concatenation */
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| "__weak"
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| "__strong"
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| "__attribute__"
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| "__objc_exception__"
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| "#" : PREPROCESSOR_OUTPUT
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| "extern \"C\" {"
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| "CF_EXPORT"
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| "CF_INLINE"
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| "CF_EXTERN_C_BEGIN"
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| "CF_EXTERN_C_END"
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| "CA_EXTERN_C_BEGIN"
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| "CA_EXTERN_C_END"
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| "CA_EXTERN"
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| "CA_DEPRECATED"
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| "COREDATA_EXTERN"
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| "NS_INLINE"
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| "APPKIT_EXTERN"
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| "FOUNDATION_EXPORT" : PREPROCESSOR_OUTPUT /* mjh - Cocoa specific not currently of interest, ignore like preprocessor stuff */
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| "DEPRECATED_IN_MAC_OS_X_VERSION_10_0_AND_LATER" /* mjh - not currently of interest */
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| "DEPRECATED_IN_MAC_OS_X_VERSION_10_1_AND_LATER" /* mjh - not currently of interest */
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| "DEPRECATED_IN_MAC_OS_X_VERSION_10_2_AND_LATER" /* mjh - not currently of interest */
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| "DEPRECATED_IN_MAC_OS_X_VERSION_10_3_AND_LATER" /* mjh - not currently of interest */
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| "DEPRECATED_IN_MAC_OS_X_VERSION_10_4_AND_LATER" /* mjh - not currently of interest */
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| "DEPRECATED_IN_MAC_OS_X_VERSION_10_5_AND_LATER" /* mjh - not currently of interest */
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| "DEPRECATED_IN_MAC_OS_X_VERSION_10_6_AND_LATER" /* mjh - not currently of interest */
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| "AVAILABLE_MAC_OS_X_VERSION_10_0_AND_LATER" /* mjh - not currently of interest */
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| "AVAILABLE_MAC_OS_X_VERSION_10_1_AND_LATER" /* mjh - not currently of interest */
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| "AVAILABLE_MAC_OS_X_VERSION_10_2_AND_LATER" /* mjh - not currently of interest */
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| "AVAILABLE_MAC_OS_X_VERSION_10_3_AND_LATER" /* mjh - not currently of interest */
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| "AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER" /* mjh - not currently of interest */
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| "AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER" /* mjh - not currently of interest */
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| "AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER" /* mjh - not currently of interest */
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| "AVAILABLE_MAC_OS_X_VERSION_10_6_AND_LATER_BUT_DEPRECATED" /* mjh - not currently of interest */
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| "AVAILABLE_MAC_OS_X_VERSION_10_0_AND_LATER_BUT_DEPRECATED_IN_MAC_OS_X_VERSION_10_6"
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| "AVAILABLE_MAC_OS_X_VERSION_10_0_AND_LATER_BUT_DEPRECATED_IN_MAC_OS_X_VERSION_10_4"
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| "AVAILABLE_MAC_OS_X_VERSION_10_1_AND_LATER_BUT_DEPRECATED_IN_MAC_OS_X_VERSION_10_4"
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| "AVAILABLE_MAC_OS_X_VERSION_10_1_AND_LATER_BUT_DEPRECATED_IN_MAC_OS_X_VERSION_10_5"
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| "AVAILABLE_MAC_OS_X_VERSION_10_2_AND_LATER_BUT_DEPRECATED_IN_MAC_OS_X_VERSION_10_5"
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| "AVAILABLE_MAC_OS_X_VERSION_10_3_AND_LATER_BUT_DEPRECATED_IN_MAC_OS_X_VERSION_10_4"
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| "AVAILABLE_MAC_OS_X_VERSION_10_3_AND_LATER_BUT_DEPRECATED_IN_MAC_OS_X_VERSION_10_5"
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| "AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER_BUT_DEPRECATED_IN_MAC_OS_X_VERSION_10_5"
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| "AVAILABLE_MAC_OS_X_VERSION_10_4_AND_LATER_BUT_DEPRECATED_IN_MAC_OS_X_VERSION_10_6"
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| "AVAILABLE_WEBKIT_VERSION_1_3_AND_LATER_BUT_DEPRECATED_IN_WEBKIT_VERSION_3_0"
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| "AVAILABLE_WEBKIT_VERSION_1_0_AND_LATER_BUT_DEPRECATED_IN_WEBKIT_VERSION_4_0"
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| "AVAILABLE_WEBKIT_VERSION_3_0_AND_LATER" /* mjh - not currently of interest */
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| "AVAILABLE_WEBKIT_VERSION_3_0_AND_LATER_BUT_DEPRECATED" /* mjh - not currently of interest */
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| "AVAILABLE_MAC_OS_X_VERSION_10_5_AND_LATER_BUT_DEPRECATED" /* mjh - not currently of interest */
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| "AVAILABLE_IN_WEBKIT_VERSION_4_0" /* mjh - not currently of interest */
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| "NP_LOADDS" /* mjh - not currently of interest */
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| "NS_REQUIRES_NIL_TERMINATION"
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| "UNAVAILABLE_ATTRIBUTE"
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| <"," "NS_NONATOMIC_IPHONEONLY"> /* mjh - not currently of interest */
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| "NS_FORMAT_FUNCTION" : FORMAT_FUNC
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| "CF_FORMAT_ARGUMENT" : FORMAT_FUNC
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| "__OSX_AVAILABLE_STARTING" : FORMAT_FUNC /* mjh - same sort of thing */
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| "WEBKIT_OBJC_METHOD_ANNOTATION" : FORMAT_FUNC /* mjh - same sort of thing */
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| "(void (^)" : VOID_BLOCK
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}
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/* mjh - we try to just ignore the parameter list */
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<VOID_BLOCK> SKIP :
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{
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"))" : DEFAULT
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}
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<VOID_BLOCK> MORE:
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{
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< ~[")"] >
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}
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<PREPROCESSOR_OUTPUT> SKIP:
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{
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"\n" : DEFAULT
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}
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<PREPROCESSOR_OUTPUT> MORE:
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{
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"\\\n"
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"\\\r\n"
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< ~[] >
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}
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/* mjh - we try to just ignore the "(" whatever ")" */
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<FORMAT_FUNC> SKIP :
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{
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")" : DEFAULT
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}
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<FOAMAT_FUNC> SPECIAL_TOKEN :
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{
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<FUNC: "(" (~[")"])* ")">
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}
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<FORMAT_FUNC> MORE :
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{
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"\\\n"
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"\\\r\n"
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< ~[")"] >
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}
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/* COMMENTS */
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MORE :
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{
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"/*" : IN_MULTI_LINE_COMMENT
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}
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SPECIAL_TOKEN :
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{
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<SINGLE_LINE_COMMENT: "//" (~["\n", "\r"])* ("\n" | "\r" | "\r\n")?>
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}
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<IN_MULTI_LINE_COMMENT>
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SPECIAL_TOKEN :
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{
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<MULTI_LINE_COMMENT: "*/" > : DEFAULT
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}
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<IN_MULTI_LINE_COMMENT>
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MORE :
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{
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< ~[] >
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}
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/* OPERATORS */
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TOKEN :
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{
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< ASSIGN: "=" >
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| < LT: "<" >
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| < GT: ">" >
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| < BANG: "!" >
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| < TILDE: "~" >
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| < HOOK: "?" >
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| < COLON: ":" >
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| < EQ: "==" >
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| < LE: "<=" >
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| < GE: ">=" >
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| < NE: "!=" >
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| < SC_OR: "||" >
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| < SC_AND: "&&" >
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| < INCR: "++" >
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| < DECR: "--" >
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| < PLUS: "+" >
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| < MINUS: "-" >
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| < STAR: "*" >
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| < SLASH: "/" >
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| < BIT_AND: "&" >
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| < BIT_OR: "|" >
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| < XOR: "^" >
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| < REM: "%" >
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| < LSHIFT: "<<" >
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| < PLUSASSIGN: "+=" >
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| < MINUSASSIGN: "-=" >
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| < STARASSIGN: "*=" >
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| < SLASHASSIGN: "/=" >
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| < ANDASSIGN: "&=" >
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| < ORASSIGN: "|=" >
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| < XORASSIGN: "^=" >
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| < REMASSIGN: "%=" >
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| < LSHIFTASSIGN: "<<=" >
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| < RSIGNEDSHIFTASSIGN: ">>=" >
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| < RUNSIGNEDSHIFTASSIGN: ">>>=" >
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| < ELLIPSIS: "..." >
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}
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TOKEN :
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{
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< ESCAPE_SEQUENCE :
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"\\" ["'","\"","?","\\","a","b","f","n","r","t","v"] /* SIMPLE_ESCAPE_SEQUENCE */
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| "\\" <OCTAL_DIGIT> (<OCTAL_DIGIT> (<OCTAL_DIGIT>)?)? /* OCTAL_ESCAPE_SEQUENCE */
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| "\\" "x" (<HEX_DIGIT>)+ /* HEX_ESCAPE_SEQUENCE */
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>
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}
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TOKEN : {
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<INTEGER_LITERAL: <DECIMAL_LITERAL> (["l","L"] | ("ul" | "UL") )? | <HEX_LITERAL> (["l","L","U"])? | <OCTAL_LITERAL> (["l","L"])?>
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| <#DECIMAL_LITERAL: ["1"-"9"] (["0"-"9"])* | (["0"])+>
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| <#HEX_LITERAL: "0" ["x","X"] (["0"-"9","a"-"f","A"-"F"])+>
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| <#OCTAL_LITERAL: "0" (["0"-"7"])*>
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| <FLOATING_POINT_LITERAL: (["0"-"9"])+ "." (["0"-"9"])* (<EXPONENT>)? (["f","F","d","D"])? | "." (["0"-"9"])+ (<EXPONENT>)? (["f","F","d","D"])? | (["0"-"9"])+ <EXPONENT> (["f","F","d","D"])? | (["0"-"9"])+ (<EXPONENT>)? ["f","F","d","D"]>
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| <#EXPONENT: ["e","E"] (["+","-"])? (["0"-"9"])+>
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| <CHARACTER_LITERAL: "\'" (~["\'","\\","\n","\r"] | "\\" (["n","t","b","r","f","a","v","\\","\'","\""] | ["0"-"7"] (["0"-"7"])? | ["0"-"3"] ["0"-"7"] ["0"-"7"])) "\'">
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| <STRING_LITERAL: [ "@" ] "\"" ( ~["\"","\\","\n","\r"] | "\\" ["x","X","u","U"] (["0"-"9","a"-"f","A"-"F"]) | "\\" ( ["n","t","b","r","f","a","v","\\","\'","\""] | ["0"-"7"] (["0"-"7"])? | ["0"-"3"] ["0"-"7"] ["0"-"7"] | ( ["\n","\r"] | "\r\n")))* "\"">
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| <CSTRING_LITERAL: "\"" ( ~["\"","\\","\n","\r"] | "\\" ["x","X","u","U"] (["0"-"9","a"-"f","A"-"F"]) | "\\" ( ["n","t","b","r","f","a","v","\\","\'","\""] | ["0"-"7"] (["0"-"7"])? | ["0"-"3"] ["0"-"7"] ["0"-"7"] | ( ["\n","\r"] | "\r\n")))* "\"">
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}
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TOKEN :
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{
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< DIGIT: ["0"-"9"] >
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< NONZERO_DIGIT : ["1"-"9"] >
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< OCTAL_DIGIT : ["1"-"7"] >
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< #HEX_DIGIT : <DIGIT> | ["a"-"f"] | ["A"-"F"] >
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< #HEX_QUAD : <HEX_DIGIT> <HEX_DIGIT> <HEX_DIGIT> <HEX_DIGIT> >
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< #UNSIGNED_SUFFIX : ["u","U"] | ("UL" | "ul") >
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< #LONG_SUFFIX : ["l","L"] | ("LL" | "ll") >
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< #INTEGER_SUFFIX : <UNSIGNED_SUFFIX> (<LONG_SUFFIX>)? | <LONG_SUFFIX> (<UNSIGNED_SUFFIX>)? >
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< DECIMAL_CONSTANT : <NONZERO_DIGIT> (<DIGIT>)* >
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< OCTAL_CONSTANT : "0" | <OCTAL_DIGIT> >
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< HEX_PREFIX : "0" ["x","X"] >
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< HEX_CONSTANT : <HEX_PREFIX> (<HEX_DIGIT>)+ >
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}
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TOKEN :
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{
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< INTEGER_CONSTANT :
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<DECIMAL_CONSTANT> (<INTEGER_SUFFIX>)?
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| <OCTAL_CONSTANT> (<INTEGER_SUFFIX>)?
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| <HEX_CONSTANT> (<INTEGER_SUFFIX>)?
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>
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}
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TOKEN : {
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<FIXED_NUM_TYPE : "short" | "int" | ("long")+ >
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}
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TOKEN : {
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<CONTINUE: "continue"> |
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<VOLATILE: "volatile"> |
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<REGISTER: "register"> |
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<UNSIGNED: "unsigned"> |
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<UCHAR: "unsigned char"> |
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<TYPEDEF: "typedef"> |
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<DFLT: "default"> |
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<DOUBLE: "double"> |
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<BOOL: "BOOL" > |
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<BOOLEAN: "Boolean" > |
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<SIZEOF: "sizeof"> |
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<SWITCH: "switch"> |
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<RETURN: "return"> |
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<EXTERN: "extern"> |
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<STRUCT: "struct"> |
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<STATIC: "static"> |
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<SIGNED: "signed"> |
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<SCHAR: "signed char"> |
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<SINT32: "SInt32"> |
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<INT32_T: "int32_t"> |
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<WHILE: "while"> |
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<BREAK: "break"> |
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<UNION: "union"> |
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<CONST: "const"> |
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<FLOAT: "float"> |
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<ELSE: "else"> |
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<CASE: "case"> |
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<ENUM: "enum"> |
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<AUTO: "auto"> |
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<VOID: "void"> |
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<CHAR: "char"> |
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<GOTO: "goto"> |
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<FOR: "for"> |
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<IF: "if"> |
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<DO: "do">
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}
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TOKEN : {
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<IBACTION: "IBAction">
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| <IBOUTLET: "IBOutlet">
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| <ID: "id">
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| <SEL: "SEL">
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| <IMP: "IMP">
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| <CLASS: "Class">
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| <NIL: "nil">
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}
|
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|
/* mjh - see ProtocolQualifier
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TOKEN :
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{
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<IN_KEYWORD : "in">
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}
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*/
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|
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|
TOKEN :
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{
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|
<PROTOCOL_QUALIFIER_EXCEPT_IN : // 'in' must be separate token
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|
"out"
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| "inout"
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|
| "bycopy"
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|
| "byref"
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| "oneway"
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|
>
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|
}
|
|
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TOKEN :
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|
{
|
|
<LEFT_PAREN: "(">
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|
| <RIGHT_PAREN: ")">
|
|
| <LEFT_SQUARE: "[">
|
|
| <RIGHT_SQUARE: "]">
|
|
| <LEFT_BRACE: "{">
|
|
| <RIGHT_BRACE: "}">
|
|
| <SEMICOLON: ";">
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|
}
|
|
|
|
TOKEN :
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|
{
|
|
<AT_IMPLEMENTATION: "@implementation">
|
|
| <AT_INTERFACE: "@interface">
|
|
| <AT_PROTOCOL: "@protocol">
|
|
| <AT_ENCODE: "@encode">
|
|
| <AT_SYNCHRONIZED: "@synchronized">
|
|
| <AT_SELECTOR: "@selector">
|
|
| <AT_END: "@end">
|
|
| <AT_DEFS: "@defs">
|
|
| <AT_CLASS: "@class">
|
|
|
|
|
<AT_TRY: "@try">
|
|
| <AT_THROW: "@throw">
|
|
| <AT_CATCH: "@catch">
|
|
| <AT_FINALLY: "@finally">
|
|
|
|
|
<AT_PRIVATE: "@private">
|
|
| <AT_PACKAGE: "@package">
|
|
| <AT_PUBLIC: "@public">
|
|
| <AT_PROTECTED: "@protected">
|
|
|
|
|
<AT_PROPERTY: "@property">
|
|
| <AT_SYNTHESIZE: "@synthesize">
|
|
| <AT_DYNAMIC: "@dynamic">
|
|
|
|
|
<AT_OPTIONAL: "@optional">
|
|
| <AT_REQUIRED: "@required">
|
|
| <AT_AUTORELEASEPOOL: "@autoreleasepool">
|
|
| <AT_COMPATIBILITY_ALIAS: "@compatibility_alias">
|
|
| <AT: "@">
|
|
|
|
}
|
|
|
|
TOKEN :
|
|
{
|
|
<CGFLOAT: "CGFloat">
|
|
| <NSINTEGER: "NSInteger">
|
|
| <NSRECT: "NSRect">
|
|
| <NSSIZE: "NSSize">
|
|
| <NSUINTEGER: "NSUInteger">
|
|
}
|
|
|
|
TOKEN : {
|
|
<POSSIBLE_COCOA_TYPE: "NS" (["a"-"z"] | ["A"-"Z"] | <DIGIT> | "_")*>
|
|
| <POSSIBLE_CORE_TYPE: "CF" (["a"-"z"] | ["A"-"Z"] | <DIGIT> | "_")*>
|
|
}
|
|
|
|
TOKEN : { <EXPORTED_CALLBACK : "EXPORTED_CALLBACK"> }
|
|
|
|
TOKEN :
|
|
{
|
|
< IDENT : <IDENT_NONDIGIT> ( <IDENT_NONDIGIT> | <DIGIT>)* >
|
|
| <#IDENT_NONDIGIT : <NONDIGIT> | <UNIVERSAL_CHARACTER_NAME> > // "may include other implementation-defined characters"
|
|
| <#NONDIGIT : ["a"-"z"] | ["A"-"Z"] | "_" | "$" | <NONDIGIT_UNICODE> >
|
|
| <#NONDIGIT_UNICODE : [ /* source: http://stackoverflow.com/questions/30933785 */
|
|
"\u0024",
|
|
"\u0041"-"\u005a",
|
|
"\u005f",
|
|
"\u0061"-"\u007a",
|
|
"\u00c0"-"\u00d6",
|
|
"\u00d8"-"\u00f6",
|
|
"\u00f8"-"\u00ff",
|
|
"\u0100"-"\u1fff"
|
|
] >
|
|
| <#UNIVERSAL_CHARACTER_NAME : ("\\u" <HEX_QUAD>) | ("\\U" <HEX_QUAD> <HEX_QUAD>) >
|
|
}
|
|
|
|
TOKEN : { <BLOCK: "(^"> }
|
|
|
|
/***********************************************
|
|
* THE OBJECTIVEC LANGUAGE GRAMMAR STARTS HERE *
|
|
***********************************************/
|
|
|
|
void TranslationUnit() : {}
|
|
{
|
|
(ExternalDeclaration())+
|
|
}
|
|
|
|
|
|
|
|
void ExternalDeclaration() : {}
|
|
{
|
|
( LOOKAHEAD( FunctionDefinition() ) FunctionDefinition()
|
|
| LOOKAHEAD(3) StrippedParens() /* mjh if we skip all but parens for something like __attribute__((__objc_exception__)) */
|
|
| Declaration()
|
|
| LOOKAHEAD(3) ClassInterface()
|
|
| LOOKAHEAD(3) ClassImplementation()
|
|
| CategoryInterface()
|
|
| CategoryImplementation()
|
|
| ProtocolDeclaration()
|
|
| ClassDeclarationList() )
|
|
}
|
|
|
|
void StrippedParens() : {} /* See ExternalDeclaration above */
|
|
{
|
|
<LEFT_PAREN> [ StrippedParens() ] <RIGHT_PAREN>
|
|
}
|
|
|
|
void FunctionDefinition() : {}
|
|
{
|
|
[LOOKAHEAD(DeclarationSpecifiers()) DeclarationSpecifiers()] Declarator() [ DeclarationList() ]
|
|
CompoundStatement()
|
|
}
|
|
|
|
void Declaration() : {}
|
|
{
|
|
DeclarationSpecifiers() [ InitDeclaratorList() ] [ <EXPORTED_CALLBACK> "(" ParameterTypeList() ")" "(" ParameterTypeList() ")" ] /* ugly hack for single header typedef */ ";"
|
|
}
|
|
|
|
void ClassInterface() : {}
|
|
{
|
|
<AT_INTERFACE> ClassName() (ColonSuperClassName())? (ProtocolReferenceList())?
|
|
[ LOOKAHEAD(2) ["{"] <AT_INTERFACE> ClassName() (ColonSuperClassName())? (ProtocolReferenceList())? ] /* dup for preprocessor #else */
|
|
(InstanceVariables())? (InterfaceDeclaration())* <AT_END>
|
|
}
|
|
|
|
void ClassImplementation() : {}
|
|
{
|
|
<AT_IMPLEMENTATION> ClassName() (LOOKAHEAD(2) ColonSuperClassName())? (InstanceVariables())? (ImplementationDefinition())* <AT_END>
|
|
}
|
|
|
|
void CategoryInterface() : {}
|
|
{
|
|
<AT_INTERFACE> ClassName() <LEFT_PAREN> (CategoryName())? <RIGHT_PAREN> (ProtocolReferenceList())? (InterfaceDeclaration())* <AT_END>
|
|
}
|
|
|
|
void CategoryImplementation() : {}
|
|
{
|
|
<AT_IMPLEMENTATION> ClassName() <LEFT_PAREN> CategoryName() <RIGHT_PAREN> (ImplementationDefinition())* <AT_END>
|
|
}
|
|
|
|
void ProtocolDeclaration() : {}
|
|
{
|
|
<AT_PROTOCOL> ProtocolList() (ProtocolReferenceList())? ProtocolInterfaceDeclaration() ( <AT_END> | ";" )
|
|
}
|
|
|
|
void ClassDeclarationList() : {}
|
|
{
|
|
<AT_CLASS> ClassList() ";"
|
|
}
|
|
|
|
void ClassList() : {}
|
|
{
|
|
ClassName() ["," ClassList()]
|
|
}
|
|
|
|
void ProtocolReferenceList() : {}
|
|
{
|
|
<LT> ProtocolList() <GT> [ <LT> ProtocolList() <GT> /* if preproc #else, see AppKit NSWindow */ ]
|
|
}
|
|
|
|
void ProtocolList() : {}
|
|
{
|
|
ProtocolName() ["," ProtocolList()]
|
|
}
|
|
|
|
Token ObjCIDENT() : { Token t; }
|
|
{
|
|
t = <POSSIBLE_COCOA_TYPE> { return t; } | t = <POSSIBLE_CORE_TYPE> { return t; } | t = <IDENT> { return t; }
|
|
}
|
|
|
|
void ClassName() : {}
|
|
{
|
|
ObjCIDENT()
|
|
}
|
|
|
|
void SuperClassName() : {}
|
|
{
|
|
ObjCIDENT()
|
|
}
|
|
|
|
void ColonSuperClassName() : {}
|
|
{
|
|
<COLON> SuperClassName()
|
|
}
|
|
|
|
void CategoryName() : {}
|
|
{
|
|
<POSSIBLE_COCOA_TYPE> | <POSSIBLE_CORE_TYPE> | <IDENT>
|
|
}
|
|
|
|
void ProtocolName() : {}
|
|
{
|
|
<POSSIBLE_COCOA_TYPE> | <POSSIBLE_CORE_TYPE> | <IDENT>
|
|
}
|
|
|
|
void InstanceVariables() : {}
|
|
{
|
|
<LEFT_BRACE> (InstanceVariableDeclaration())* <RIGHT_BRACE> [ ";" ]
|
|
}
|
|
|
|
void InstanceVariableDeclaration() : {}
|
|
{
|
|
VisibilitySpecification()
|
|
| LOOKAHEAD(3) InstanceVariableDeclarator()
|
|
| StructDeclaration()
|
|
}
|
|
|
|
void InstanceVariableDeclarator() : {}
|
|
{
|
|
( LOOKAHEAD(3) [ IBOutlet() ]
|
|
(LOOKAHEAD(2) ClassName() "*" | <ID> [ ProtocolReferenceList() ]) <IDENT> ";"
|
|
| Declaration() )
|
|
}
|
|
|
|
void VisibilitySpecification() : {}
|
|
{
|
|
<AT_PRIVATE> [ ";" ]
|
|
| <AT_PROTECTED>
|
|
| <AT_PACKAGE>
|
|
| <AT_PUBLIC>
|
|
}
|
|
|
|
void IBOutlet() : {} /* mjh */
|
|
{
|
|
<IBOUTLET>
|
|
}
|
|
|
|
void ProtocolInterfaceDeclaration() : {}
|
|
{
|
|
(InterfaceDeclaration())* (QualifiedProtocolInterfaceDeclaration())*
|
|
}
|
|
|
|
void QualifiedProtocolInterfaceDeclaration() : {}
|
|
{
|
|
<AT_OPTIONAL> (InterfaceDeclaration())*
|
|
| <AT_REQUIRED> (InterfaceDeclaration())*
|
|
}
|
|
|
|
void InterfaceDeclaration() : {}
|
|
{
|
|
Declaration()
|
|
| PropertyDeclaration()
|
|
| MethodDeclaration()
|
|
}
|
|
|
|
void PropertyDeclaration() : {}
|
|
{
|
|
<AT_PROPERTY> (PropertyAttributesDeclaration())? ( LOOKAHEAD(3) StructDeclaration() | <ID> (ProtocolReferenceList())? <IDENT> ";" )
|
|
}
|
|
|
|
void PropertyAttributesDeclaration() : {}
|
|
{
|
|
<LEFT_PAREN> PropertyAttributesList() <RIGHT_PAREN>
|
|
}
|
|
|
|
void PropertyAttributesList() : {}
|
|
{
|
|
PropertyAttribute() ["," PropertyAttributesList()]
|
|
}
|
|
|
|
void PropertyAttribute() : {}
|
|
{
|
|
LOOKAHEAD(3) <IDENT> <ASSIGN> /* prop */ <IDENT> [ <COLON> ] // setter
|
|
// | LOOKAHEAD(2) <IDENT> <ASSIGN> /* getter or ivar */ <IDENT> // getter ivar
|
|
| <IDENT> // nonatomic, readwrite, readonly, retain, assign, copy
|
|
| <POSSIBLE_COCOA_TYPE> /* NS_NONATOMIC_IPHONEONLY */
|
|
}
|
|
|
|
void MethodDeclaration() : {}
|
|
{
|
|
ClassMethodDeclaration()
|
|
| InstanceMethodDeclaration()
|
|
}
|
|
|
|
void ClassMethodDeclaration() : {}
|
|
{
|
|
<PLUS> (MethodType())? MethodSelector() <SEMICOLON>
|
|
}
|
|
|
|
void InstanceMethodDeclaration() : {}
|
|
{
|
|
<MINUS> (MethodType())? MethodSelector() <SEMICOLON>
|
|
}
|
|
|
|
void ImplementationDefinition() : {}
|
|
{
|
|
( LOOKAHEAD( FunctionDefinition() ) FunctionDefinition()
|
|
| Declaration()
|
|
| PropertyImplementation()
|
|
| MethodDefinition() )
|
|
}
|
|
|
|
void PropertyImplementation() : {}
|
|
{
|
|
<AT_SYNTHESIZE> PropertySynthesizeList() <SEMICOLON>
|
|
| <AT_DYNAMIC> PropertySynthesizeList() <SEMICOLON>
|
|
}
|
|
|
|
void PropertySynthesizeList() : {}
|
|
{
|
|
PropertySynthesizeItem() ["," PropertySynthesizeList()]
|
|
/*
|
|
PropertySynthesizeList() "," PropertySynthesizeItem()
|
|
| PropertySynthesizeItem()
|
|
*/
|
|
}
|
|
|
|
void PropertySynthesizeItem() : {}
|
|
{
|
|
LOOKAHEAD(2) <IDENT>
|
|
| <IDENT> <EQ> <IDENT>
|
|
}
|
|
|
|
void MethodDefinition() : {}
|
|
{
|
|
ClassMethodDefinition()
|
|
| InstanceMethodDefinition()
|
|
}
|
|
|
|
void ClassMethodDefinition() : {}
|
|
{
|
|
<PLUS> (MethodType())? MethodSelectorNoList() (Declaration())* (<SEMICOLON>)? CompoundStatement()
|
|
}
|
|
|
|
void InstanceMethodDefinition() : {}
|
|
{
|
|
<MINUS> (MethodType())? MethodSelectorNoList() (Declaration())* (<SEMICOLON>)? CompoundStatement()
|
|
}
|
|
|
|
void MethodSelectorNoList() : {}
|
|
{
|
|
LOOKAHEAD(3) KeywordSelector() [LOOKAHEAD(2) (",..." | "," "...")]
|
|
| UnarySelector()
|
|
}
|
|
|
|
void MethodSelector() : {}
|
|
{
|
|
LOOKAHEAD(3) MethodSelectorNoList()
|
|
| KeywordSelector() "," ParameterTypeList() // this is correct according to objcbook, but causes conflict if followed by declaration*
|
|
}
|
|
|
|
void UnarySelector() : {}
|
|
{
|
|
Selector()
|
|
}
|
|
|
|
void KeywordSelector() : {}
|
|
{
|
|
(LOOKAHEAD(2) KeywordDeclarator())+
|
|
}
|
|
|
|
void KeywordDeclarator() : {}
|
|
{
|
|
(Selector())? <COLON> (MethodType())? <IDENT>
|
|
}
|
|
|
|
void Selector() : {}
|
|
{
|
|
<IDENT>
|
|
}
|
|
|
|
void MethodType() : {}
|
|
{
|
|
<LEFT_PAREN> (LOOKAHEAD(3) Block() | TypeNameWithUnknownType()) <RIGHT_PAREN>
|
|
}
|
|
|
|
void SelectorExpression() : {}
|
|
{
|
|
<AT_SELECTOR> <LEFT_PAREN> SelectorName() <RIGHT_PAREN>
|
|
}
|
|
|
|
void SelectorName() : {}
|
|
{
|
|
LOOKAHEAD(2) Selector()
|
|
| (KeywordName())+
|
|
}
|
|
|
|
void KeywordName() : {}
|
|
{
|
|
(Selector())? <COLON>
|
|
}
|
|
|
|
void ProtocolExpression() : {}
|
|
{
|
|
<AT_PROTOCOL> <LEFT_PAREN> ProtocolName() <RIGHT_PAREN>
|
|
}
|
|
|
|
void EncodeExpression() : {}
|
|
{
|
|
<AT_ENCODE> <LEFT_PAREN> TypeNameWithUnknownType() <RIGHT_PAREN>
|
|
}
|
|
|
|
void DeclarationList() : {}
|
|
{
|
|
( LOOKAHEAD(Declaration()) Declaration() )+
|
|
}
|
|
|
|
void DeclarationSpecifiers() : {}
|
|
{
|
|
/**
|
|
* We enumerate the possibilities (closure?) like SpecifierQualifierList
|
|
* instead of the standard C grammar recursive definition
|
|
* Although more complex it might actually end up cleaner?
|
|
* (For one thing you don't keep recursively matching <ObjCIDENT> types
|
|
* in TypeSpecifier(), this can muddle things or require semantic lookahead
|
|
* workarounds, see the sample javacc C implementation of this nonterminal)
|
|
*
|
|
* Assumes none actually should be duplicated
|
|
*/
|
|
LOOKAHEAD(3) TypeSpecifier() [ StorageClassSpecifier() ] [ TypeQualifier() ]
|
|
| TypeSpecifier() [ TypeQualifier() ] [ StorageClassSpecifier() ]
|
|
| LOOKAHEAD(3) StorageClassSpecifier() [ TypeQualifier() ] [ LOOKAHEAD(2) TypeSpecifier() ]
|
|
| LOOKAHEAD(3) StorageClassSpecifier() [ LOOKAHEAD(2) TypeSpecifier() ] [ TypeQualifier() ]
|
|
| LOOKAHEAD(3) TypeQualifier() [ StorageClassSpecifier() ] [ LOOKAHEAD(2) TypeSpecifier() ]
|
|
| LOOKAHEAD(2) TypeQualifier() [ LOOKAHEAD(2) TypeSpecifier() ] [ StorageClassSpecifier() ]
|
|
}
|
|
|
|
void StorageClassSpecifier() : {}
|
|
{
|
|
( <AUTO> | <REGISTER> | <STATIC> | <EXTERN> | <TYPEDEF>
|
|
{
|
|
typedefParsingStack.push(Boolean.TRUE);
|
|
} )
|
|
}
|
|
|
|
void TypeSpecifier() : {}
|
|
{
|
|
( GreedyFixedNumType() | <VOID> | <CHAR> | <FLOAT> | <DOUBLE> | <BOOL> |
|
|
<IBACTION> /* mjh - same as void */ | <ID> | /* Cocoa additions */
|
|
<INT32_T> |
|
|
<CGFLOAT> | <NSRECT> | <NSUINTEGER> | <NSINTEGER> | <NSSIZE> | <SEL> | <CLASS> | <IMP> | /* mjh - more cocoa additions */
|
|
<SINT32> | <BOOLEAN> | /* CoreFoundation additions */
|
|
<SCHAR> | <UCHAR> | StructOrUnionSpecifier() | EnumSpecifier() | LOOKAHEAD( { isType(getToken(1).image) } )TypedefName() |
|
|
PossibleCocoaType() | PossibleCoreType() | PossibleUnknownType()
|
|
)
|
|
}
|
|
|
|
void GreedyFixedNumType() : {}
|
|
{
|
|
LOOKAHEAD(2) [ <SIGNED> | <UNSIGNED> ] <FIXED_NUM_TYPE> [ LOOKAHEAD(2) <FIXED_NUM_TYPE> ] /* long long */ |
|
|
<SIGNED> |
|
|
<UNSIGNED>
|
|
}
|
|
|
|
void PossibleCocoaType() : { Token t; }
|
|
{
|
|
t = <POSSIBLE_COCOA_TYPE>
|
|
{
|
|
if (verbose)
|
|
System.out.println("WARNING: Adding typedef on possible Cocoa type " + t.getImage() + " at " + t.getReportLocation().startPosToString());
|
|
addType(t.getImage());
|
|
}
|
|
}
|
|
|
|
void PossibleCoreType() : { Token t; }
|
|
{
|
|
t = <POSSIBLE_CORE_TYPE>
|
|
{
|
|
if (verbose)
|
|
System.out.println("WARNING: Adding typedef on possible CoreFoundation type " + t.getImage() + " at " + t.getReportLocation().startPosToString());
|
|
addType(t.getImage());
|
|
}
|
|
}
|
|
|
|
void PossibleUnknownType() : { Token t; }
|
|
{
|
|
t = <IDENT>
|
|
{
|
|
if (verbose)
|
|
System.out.println("WARNING: Adding typedef on unknown identifier " + t.getImage() + " at " + t.getReportLocation().startPosToString());
|
|
addType(t.getImage());
|
|
}
|
|
}
|
|
|
|
void TypeSpecifierWithUnknownType() : {}
|
|
{
|
|
LOOKAHEAD(2) (ObjCIDENT() | <ID>) (ProtocolReferenceList())?
|
|
| TypeSpecifier()
|
|
}
|
|
|
|
void TypeQualifier() : {}
|
|
{
|
|
( <CONST> | <VOLATILE> )
|
|
}
|
|
|
|
void StructOrUnionSpecifier() : {}
|
|
{
|
|
{
|
|
typedefParsingStack.push(Boolean.FALSE);
|
|
}
|
|
|
|
StructOrUnion() ( LOOKAHEAD(3) [ LOOKAHEAD(2) ObjCIDENT() ] ( "{" StructDeclarationList() "}" | ObjCIDENT() ) | <IDENT> )
|
|
|
|
{
|
|
typedefParsingStack.pop();
|
|
}
|
|
}
|
|
|
|
void StructOrUnion() : {}
|
|
{
|
|
( <STRUCT> | <UNION> )
|
|
}
|
|
|
|
void StructDeclarationList() : {}
|
|
{
|
|
(StructDeclaration())+
|
|
}
|
|
|
|
void InitDeclaratorList() : {}
|
|
{
|
|
InitDeclarator() ("," InitDeclarator())*
|
|
{
|
|
// Finished with a typedefDeclaration??
|
|
if(!(typedefParsingStack.empty()) && ((Boolean)typedefParsingStack.peek()).booleanValue()){
|
|
typedefParsingStack.pop();
|
|
}
|
|
}
|
|
}
|
|
|
|
void InitDeclarator() : {}
|
|
{
|
|
Declarator() [ "=" Initializer() ]
|
|
}
|
|
|
|
void ProtocolQualifier() : {}
|
|
{
|
|
<PROTOCOL_QUALIFIER_EXCEPT_IN>
|
|
| /* <IN_KEYWORD> */ In() /* Making it a IN_KEYWORD token disallows other uses */
|
|
}
|
|
|
|
void In() : {}
|
|
{
|
|
LOOKAHEAD( { getToken(0).image.equals("in") } ) <IDENT>
|
|
}
|
|
|
|
void StructDeclaration() : {}
|
|
{
|
|
SpecifierQualifierList() ( StructDeclaratorList() | "[" ConstantExpression() "]" ) ";"
|
|
}
|
|
|
|
void SpecifierQualifierWithUnknownType() : {}
|
|
{
|
|
LOOKAHEAD(2) TypeSpecifierWithUnknownType()
|
|
| TypeQualifier()
|
|
| ProtocolQualifier()
|
|
}
|
|
|
|
void SpecifierQualifierList() : {}
|
|
{
|
|
/**
|
|
* Since we don't know what all possible typedef's might be and end up matching any <IDENT> as a possible type
|
|
* we could recursively match both tokens in something like...
|
|
* CFIndex version;
|
|
* to PossibleUnknownType() in TypeSpecifier().
|
|
* So we don't follow the elegant C recursive definition but enumeratte the two possible combinations
|
|
*/
|
|
TypeSpecifier() [ TypeQualifier() ]
|
|
| TypeQualifier() TypeSpecifier()
|
|
}
|
|
|
|
void StructDeclaratorList() : {}
|
|
{
|
|
StructDeclarator() ( "," StructDeclarator() )*
|
|
}
|
|
|
|
void StructDeclarator() : {}
|
|
{
|
|
Declarator()
|
|
}
|
|
|
|
void EnumSpecifier() : {}
|
|
{
|
|
<ENUM> ( LOOKAHEAD(3) [ ObjCIDENT() ] "{" EnumeratorList() "}" | <IDENT> )
|
|
}
|
|
|
|
void EnumeratorList() : {}
|
|
{
|
|
Enumerator() ("," [ Enumerator() ])*
|
|
}
|
|
|
|
void Enumerator() : {}
|
|
{
|
|
ObjCIDENT() [ "=" ConstantExpression() ]
|
|
}
|
|
|
|
void Declarator() : {}
|
|
{
|
|
LOOKAHEAD(3) Block()
|
|
| LOOKAHEAD(3) [ Pointer() ] DirectDeclarator() [ ":" ConstantExpression() ]
|
|
| ":" ConstantExpression()
|
|
| LOOKAHEAD(2) TypeSpecifier() // trying to handle 'typedef type-spec type-spec' special case, a little ugly
|
|
}
|
|
|
|
void Block() : {}
|
|
{
|
|
( LOOKAHEAD(3) <VOID> | <BOOL> | <ID> | ObjCIDENT() [ "*" ])? <BLOCK> [ ObjCIDENT() ] <RIGHT_PAREN> <LEFT_PAREN> ParameterList() <RIGHT_PAREN>
|
|
}
|
|
|
|
void DirectDeclarator() : { Token t;}
|
|
{
|
|
( t = ObjCIDENT()
|
|
|
|
{ if(!(typedefParsingStack.empty()) && ((Boolean)typedefParsingStack.peek()).booleanValue()){
|
|
addType(t.getImage());
|
|
}
|
|
}
|
|
| LOOKAHEAD(3) "(" Declarator() ")" )
|
|
|
|
{ typedefParsingStack.push( Boolean.FALSE ); }
|
|
|
|
( "[" [ ConstantExpression() ] "]" |
|
|
LOOKAHEAD(3) "(" ParameterTypeList() ")" |
|
|
"(" [ IdentifierList() ] ")" )*
|
|
{ typedefParsingStack.pop(); }
|
|
}
|
|
|
|
void Pointer() : {}
|
|
{
|
|
"*" [ TypeQualifierList() ] [ Pointer() ]
|
|
}
|
|
|
|
void TypeQualifierList() : {}
|
|
{
|
|
(TypeQualifier())+
|
|
}
|
|
|
|
void ParameterTypeList() : {}
|
|
{
|
|
ParameterList() ["," "..." ]
|
|
}
|
|
|
|
void ParameterList() : {}
|
|
{
|
|
ParameterDeclaration() (LOOKAHEAD(2) "," ParameterDeclaration())*
|
|
}
|
|
|
|
void ParameterDeclaration() : {}
|
|
{
|
|
DeclarationSpecifiers() ( LOOKAHEAD(Declarator()) Declarator() | [ AbstractDeclarator() ] )
|
|
}
|
|
|
|
void IdentifierList() : {}
|
|
{
|
|
<IDENT> ("," <IDENT>)*
|
|
}
|
|
|
|
void Initializer() : {}
|
|
{
|
|
( AssignmentExpression() |
|
|
"{" InitializerList() [","] "}" )
|
|
}
|
|
|
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void InitializerList() : {}
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{
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Initializer() (LOOKAHEAD(2) "," Initializer())*
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}
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void TypeName() : {}
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{
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SpecifierQualifierList() [ AbstractDeclarator() ]
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}
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void TypeNameWithUnknownType() : {}
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{
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(SpecifierQualifierWithUnknownType())+ (AbstractDeclarator())?
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}
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void AbstractDeclarator() : {}
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{
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( LOOKAHEAD(3) Pointer() |
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[Pointer()] DirectAbstractDeclarator() )
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}
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void DirectAbstractDeclarator() : {}
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{
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( LOOKAHEAD(2) "(" AbstractDeclarator() ")" |
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"[" [ConstantExpression()] "]" |
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"(" [ParameterTypeList()] ")" )
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( "[" [ ConstantExpression() ] "]" | "(" [ ParameterTypeList() ] ")" )*
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}
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void TypedefName() : {}
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{
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ObjCIDENT()
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}
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void Statement() : {}
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{
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( LOOKAHEAD(2) LabeledStatement() |
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LOOKAHEAD(3) InitStatement() |
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ExpressionStatement() |
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CompoundStatement() |
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SelectionStatement() |
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IterationStatement() |
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JumpStatement() )
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}
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void LabeledStatement() : {}
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{
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( <IDENT> ":" Statement() |
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<CASE> ConstantExpression() ":" Statement() |
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<DFLT> ":" Statement() )
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}
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void InitStatement() : {} /* mjh not part of normal C grammar but works */
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{
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[ LOOKAHEAD(2) TypeSpecifier() ] ["*"] <IDENT> ("," <IDENT>)*
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("=" ( LOOKAHEAD(3) MessageExpression() | PostfixExpression() ) ( ";" | "," InitStatement() )
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| ";") /* catch embedded variable declarations */
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}
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void ExpressionStatement() : {}
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{
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[ Expression() ] ";"
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}
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void CompoundStatement() : {}
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{
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"{" ( LOOKAHEAD(DeclarationList()) DeclarationList() | StatementList() )* "}"
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}
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void StatementList() : {}
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{
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(LOOKAHEAD(2) Statement())+
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}
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void SelectionStatement() : {}
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|
{
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( <IF> "(" [ LOOKAHEAD(2) NestedLogicalExpression() ] Expression() ")" Statement() [ LOOKAHEAD(2) <ELSE> Statement() ] |
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<SWITCH> "(" Expression() ")" Statement() )
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}
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|
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void NestedLogicalExpression() : {} /* mjh - introduced as part of nesting handling */
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|
{
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|
"(" [ LOOKAHEAD(2) NestedLogicalExpression() ] Expression() ")" LogicalOperator()
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}
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|
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void LogicalOperator() : {} /* mjh - introduced as part of nesting handling */
|
|
{
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|
<XOR> | <EQ> | <SC_OR> | <SC_AND>
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}
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|
|
|
void IterationStatement() : {}
|
|
{
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|
( <WHILE> "(" Expression() ")" Statement() |
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<DO> Statement() <WHILE> "(" Expression() ")" ";" |
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|
<FOR> "("
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( LOOKAHEAD(3) TypeSpecifier() <IDENT> In() PrimaryExpression() |
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|
[ LOOKAHEAD(NumberTypeInit()) NumberTypeInit() ] [ Expression() ] ";" [ Expression() ] ";" [ Expression() ] )
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")" Statement()
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|
)
|
|
}
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|
|
|
void NumberTypeInit() : {} /* mjh - allow number type initializers, e.g. on 'for' statement inits */
|
|
{
|
|
( <FIXED_NUM_TYPE> | <FLOAT> | <DOUBLE> )
|
|
}
|
|
|
|
void JumpStatement() : {}
|
|
{
|
|
( <GOTO> <IDENT> ";" |
|
|
<CONTINUE> ";" |
|
|
<BREAK> ";" |
|
|
<RETURN> [ Expression() ] ";" )
|
|
}
|
|
|
|
void Expression() : {}
|
|
{
|
|
AssignmentExpression() ( "," AssignmentExpression() )*
|
|
}
|
|
|
|
void AssignmentExpression() : {}
|
|
{
|
|
LOOKAHEAD(UnaryExpression() AssignmentOperator()) UnaryExpression() AssignmentOperator() AssignmentExpression() |
|
|
LOOKAHEAD(3) ConditionalExpression()
|
|
}
|
|
|
|
void AssignmentOperator() : {}
|
|
{
|
|
( "=" | "*=" | "/=" | "%=" | "+=" | "-=" | "<<=" | ">>=" | "&=" | "^=" | "|=" )
|
|
}
|
|
|
|
void ConditionalExpression() : {}
|
|
{
|
|
LogicalORExpression() [ "?" Expression() ":" ConditionalExpression() ]
|
|
}
|
|
|
|
void ConstantExpression() : {}
|
|
{
|
|
ConditionalExpression()
|
|
}
|
|
|
|
void LogicalORExpression() : {}
|
|
{
|
|
LogicalANDExpression() [ "||" (LOOKAHEAD(3) LogicalORExpression() | NestedLogicalExpression()) ]
|
|
}
|
|
|
|
void LogicalANDExpression() : {}
|
|
{
|
|
InclusiveORExpression() [ "&&" (LOOKAHEAD(3) LogicalANDExpression() | NestedLogicalExpression()) ]
|
|
}
|
|
|
|
void InclusiveORExpression() : {}
|
|
{
|
|
ExclusiveORExpression() [ "|" InclusiveORExpression() ]
|
|
}
|
|
|
|
void ExclusiveORExpression() : {}
|
|
{
|
|
ANDExpression() [ "^" ExclusiveORExpression() ]
|
|
}
|
|
|
|
void ANDExpression() : {}
|
|
{
|
|
EqualityExpression() [ "&" ANDExpression() ]
|
|
}
|
|
|
|
void EqualityExpression() : {}
|
|
{
|
|
RelationalExpression() [ ( "==" | "!=" ) EqualityExpression() ]
|
|
}
|
|
|
|
void RelationalExpression() : {}
|
|
{
|
|
ShiftExpression() [ ( "<" | ">" | "<=" | ">=" ) RelationalExpression() ]
|
|
}
|
|
|
|
void ShiftExpression() : {}
|
|
{
|
|
AdditiveExpression() [ ( "<<" | ">>" ) ShiftExpression() ]
|
|
}
|
|
|
|
void AdditiveExpression() : {}
|
|
{
|
|
MultiplicativeExpression() [ ( "+" | "-" ) AdditiveExpression() ]
|
|
}
|
|
|
|
void MultiplicativeExpression() : {}
|
|
{
|
|
CastExpression() [ ( "*" | "/" | "%" ) MultiplicativeExpression() ]
|
|
}
|
|
|
|
void CastExpression() : {}
|
|
{
|
|
LOOKAHEAD("(" TypeName() ")" CastExpression() ) "(" TypeName() ")" CastExpression() |
|
|
// LOOKAHEAD(3) "(" TypeSpecifier() ")" CastExpression() |
|
|
UnaryExpression()
|
|
}
|
|
|
|
void UnaryExpression() : {}
|
|
{
|
|
( LOOKAHEAD(3) PostfixExpression() |
|
|
"++" UnaryExpression() |
|
|
"--" UnaryExpression() |
|
|
UnaryOperator() CastExpression() |
|
|
<SIZEOF> ( LOOKAHEAD(UnaryExpression() ) UnaryExpression() | "(" TypeName() ")" ) )
|
|
}
|
|
|
|
void UnaryOperator() : {}
|
|
{
|
|
( "&" | "*" | "+" | "-" | "~" | "!" )
|
|
}
|
|
|
|
void PostfixExpression() : {}
|
|
{
|
|
<NIL> | /* mjh */
|
|
PrimaryExpression() ( "[" Expression() "]" |
|
|
"(" [ LOOKAHEAD(ArgumentExpressionList() ) ArgumentExpressionList() ] ")" |
|
|
"." <IDENT> |
|
|
"->" <IDENT> |
|
|
"++" |
|
|
"--" )*
|
|
}
|
|
|
|
void PrimaryExpression() : {}
|
|
{
|
|
( ObjCIDENT() |
|
|
Constant() |
|
|
"(" Expression() ")" |
|
|
MessageExpression() |
|
|
SelectorExpression() |
|
|
ProtocolExpression() |
|
|
EncodeExpression() )
|
|
}
|
|
|
|
void MessageExpression() : {}
|
|
{
|
|
<LEFT_SQUARE> Receiver() MessageSelector() <RIGHT_SQUARE>
|
|
}
|
|
|
|
void Receiver() : {}
|
|
{
|
|
LOOKAHEAD(2) Expression() // catches 'self' and 'super' as ident
|
|
| TypeDefedIDENT()
|
|
}
|
|
|
|
void TypeDefedIDENT() : {}
|
|
{
|
|
<BOOL> | <IMP> | <SEL> | <CLASS> | <ID>
|
|
}
|
|
|
|
void MessageSelector() : {}
|
|
{
|
|
LOOKAHEAD(2) (KeywordArgument())+
|
|
| <IDENT>
|
|
}
|
|
|
|
void KeywordArgument() : {}
|
|
{
|
|
LOOKAHEAD(3) <IDENT> <COLON> Expression()
|
|
| <IDENT> <COLON> <NIL>
|
|
| LOOKAHEAD(2) <COLON> <NIL>
|
|
| <COLON> Expression()
|
|
}
|
|
|
|
void ArgumentExpressionList() : {}
|
|
{
|
|
AssignmentExpression() ( "," AssignmentExpression() )*
|
|
}
|
|
|
|
void Constant() : {}
|
|
{
|
|
<INTEGER_LITERAL> | <FLOATING_POINT_LITERAL> | <CHARACTER_LITERAL> | <STRING_LITERAL> | <INTEGER_CONSTANT> | <CSTRING_LITERAL>
|
|
}
|
|
|