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https://github.com/arduino/Arduino.git
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858 lines
20 KiB
Plaintext
Executable File
858 lines
20 KiB
Plaintext
Executable File
/*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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Copyright (c) Non, Inc. 1998 -- All Rights Reserved
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PROJECT: C Compiler
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MODULE: WTreeParser
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FILE: WTreeParser.g
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AUTHOR: Monty Zukowski (jamz@cdsnet.net) April 28, 1998
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MODIFICATIONS: Hernando Barragan added support for the Wiring language
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DESCRIPTION:
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This tree grammar is for a Gnu C AST. No actions in it,
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subclass to do something useful.
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
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header {
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package processing.app.preproc;
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import java.io.*;
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import antlr.CommonAST;
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import antlr.DumpASTVisitor;
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}
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class WTreeParser extends TreeParser;
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options
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{
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importVocab = W;
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buildAST = false;
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ASTLabelType = "TNode";
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// Copied following options from java grammar.
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codeGenMakeSwitchThreshold = 2;
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codeGenBitsetTestThreshold = 3;
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}
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{
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int traceDepth = 0;
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public void reportError(RecognitionException ex) {
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if ( ex != null) {
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System.err.println("ANTLR Tree Parsing RecognitionException Error: " + ex.getClass().getName() + " " + ex );
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ex.printStackTrace(System.err);
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}
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}
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public void reportError(NoViableAltException ex) {
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System.err.println("ANTLR Tree Parsing NoViableAltException Error: " + ex.toString());
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TNode.printTree( ex.node );
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ex.printStackTrace(System.err);
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}
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public void reportError(MismatchedTokenException ex) {
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if ( ex != null) {
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TNode.printTree( ex.node );
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System.err.println("ANTLR Tree Parsing MismatchedTokenException Error: " + ex );
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ex.printStackTrace(System.err);
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}
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}
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public void reportError(String s) {
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System.err.println("ANTLR Error from String: " + s);
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}
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public void reportWarning(String s) {
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System.err.println("ANTLR Warning from String: " + s);
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}
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protected void match(AST t, int ttype) throws MismatchedTokenException {
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//System.out.println("match("+ttype+"); cursor is "+t);
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super.match(t, ttype);
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}
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public void match(AST t, BitSet b) throws MismatchedTokenException {
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//System.out.println("match("+b+"); cursor is "+t);
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super.match(t, b);
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}
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protected void matchNot(AST t, int ttype) throws MismatchedTokenException {
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//System.out.println("matchNot("+ttype+"); cursor is "+t);
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super.matchNot(t, ttype);
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}
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public void traceIn(String rname, AST t) {
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traceDepth += 1;
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for (int x=0; x<traceDepth; x++) System.out.print(" ");
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super.traceIn(rname, t);
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}
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public void traceOut(String rname, AST t) {
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for (int x=0; x<traceDepth; x++) System.out.print(" ");
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super.traceOut(rname, t);
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traceDepth -= 1;
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}
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}
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translationUnit options {
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defaultErrorHandler=false;
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}
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: ( externalList )?
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;
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/*
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exception
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catch [RecognitionException ex]
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{
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reportError(ex);
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System.out.println("PROBLEM TREE:\n"
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+ _t.toStringList());
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if (_t!=null) {_t = _t.getNextSibling();}
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}
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*/
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externalList
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: ( externalDef )+
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;
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externalDef
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: declaration
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| functionDef
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| asm_expr
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| SEMI
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| typelessDeclaration
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;
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typelessDeclaration
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: #(NTypeMissing initDeclList SEMI)
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;
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asm_expr
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: #( "asm" ( "volatile" )? LCURLY expr RCURLY ( SEMI )+ )
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;
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declaration
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: #( NDeclaration
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declSpecifiers
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(
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initDeclList
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)?
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( SEMI )+
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)
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;
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declSpecifiers
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: ( storageClassSpecifier
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| typeQualifier
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| typeSpecifier
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)+
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;
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storageClassSpecifier
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: "auto"
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| "register"
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| "typedef"
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| functionStorageClassSpecifier
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;
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functionStorageClassSpecifier
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: "extern"
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| "static"
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| "inline"
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;
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typeQualifier
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: "const"
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| "volatile"
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;
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typeSpecifier
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: "void"
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| "char"
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| "short"
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| "int"
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| "long"
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| "float"
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| "double"
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| "signed"
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| "unsigned"
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| "byte"
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| "boolean"
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| "Servo"
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| "Wire"
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| structSpecifier ( attributeDecl )*
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| unionSpecifier ( attributeDecl )*
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| enumSpecifier
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| typedefName
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| #("typeof" LPAREN
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( (typeName )=> typeName
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| expr
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)
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RPAREN
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)
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| "__complex"
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;
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typedefName
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: #(NTypedefName ID)
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;
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structSpecifier
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: #( "struct" structOrUnionBody )
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;
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unionSpecifier
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: #( "union" structOrUnionBody )
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;
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structOrUnionBody
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: ( (ID LCURLY) => ID LCURLY
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( structDeclarationList )?
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RCURLY
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| LCURLY
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( structDeclarationList )?
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RCURLY
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| ID
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)
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;
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/*
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exception
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catch [RecognitionException ex]
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{
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reportError(ex);
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System.out.println("PROBLEM TREE:\n"
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+ _t.toStringList());
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if (_t!=null) {_t = _t.getNextSibling();}
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}
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*/
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structDeclarationList
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: ( structDeclaration )+
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;
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/*
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exception
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catch [RecognitionException ex]
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{
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reportError(ex);
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System.out.println("PROBLEM TREE:\n"
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+ _t.toStringList());
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if (_t!=null) {_t = _t.getNextSibling();}
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}
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*/
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structDeclaration
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: specifierQualifierList structDeclaratorList
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;
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/*
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exception
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catch [RecognitionException ex]
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{
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reportError(ex);
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System.out.println("PROBLEM TREE:\n"
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+ _t.toStringList());
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if (_t!=null) {_t = _t.getNextSibling();}
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}
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*/
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specifierQualifierList
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: (
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typeSpecifier
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| typeQualifier
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)+
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;
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/*
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exception
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catch [RecognitionException ex]
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{
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reportError(ex);
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System.out.println("PROBLEM TREE:\n"
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+ _t.toStringList());
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if (_t!=null) {_t = _t.getNextSibling();}
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}
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*/
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structDeclaratorList
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: ( structDeclarator )+
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;
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/*
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exception
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catch [RecognitionException ex]
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{
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reportError(ex);
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System.out.println("PROBLEM TREE:\n"
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+ _t.toStringList());
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if (_t!=null) {_t = _t.getNextSibling();}
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}
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*/
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structDeclarator
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:
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#( NStructDeclarator
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( declarator )?
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( COLON expr )?
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( attributeDecl )*
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)
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;
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/*
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exception
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catch [RecognitionException ex]
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{
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reportError(ex);
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System.out.println("PROBLEM TREE:\n"
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+ _t.toStringList());
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if (_t!=null) {_t = _t.getNextSibling();}
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}
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*/
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enumSpecifier
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: #( "enum"
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( ID )?
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( LCURLY enumList RCURLY )?
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)
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;
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enumList
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: ( enumerator )+
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;
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enumerator
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: ID ( ASSIGN expr )?
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;
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attributeDecl:
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#( "__attribute" (.)* )
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| #( NAsmAttribute LPAREN expr RPAREN )
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;
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initDeclList
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: ( initDecl )+
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;
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initDecl
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{ String declName = ""; }
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: #( NInitDecl
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declarator
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( attributeDecl )*
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( ASSIGN initializer
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| COLON expr
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)?
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)
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;
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pointerGroup
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: #( NPointerGroup ( STAR ( typeQualifier )* )+ )
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;
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idList
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: ID ( COMMA ID )*
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;
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initializer
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: #( NInitializer (initializerElementLabel)? expr )
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| lcurlyInitializer
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;
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initializerElementLabel
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: #( NInitializerElementLabel
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(
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( LBRACKET expr RBRACKET (ASSIGN)? )
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| ID COLON
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| DOT ID ASSIGN
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)
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)
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;
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lcurlyInitializer
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: #( NLcurlyInitializer
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initializerList
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RCURLY
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)
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;
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initializerList
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: ( initializer )*
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;
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declarator
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: #( NDeclarator
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( pointerGroup )?
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( id:ID
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| LPAREN declarator RPAREN
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)
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( #( NParameterTypeList
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(
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parameterTypeList
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| (idList)?
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)
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RPAREN
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)
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| LBRACKET ( expr )? RBRACKET
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)*
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)
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;
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parameterTypeList
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: ( parameterDeclaration ( COMMA | SEMI )? )+ ( VARARGS )?
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;
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parameterDeclaration
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: #( NParameterDeclaration
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declSpecifiers
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(declarator | nonemptyAbstractDeclarator)?
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)
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;
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functionDef
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: #( NFunctionDef
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( functionDeclSpecifiers)?
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declarator
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(declaration | VARARGS)*
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compoundStatement
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)
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;
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/*
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exception
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catch [RecognitionException ex]
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{
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reportError(ex);
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System.out.println("PROBLEM TREE:\n"
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+ _t.toStringList());
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if (_t!=null) {_t = _t.getNextSibling();}
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}
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*/
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functionDeclSpecifiers
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:
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( functionStorageClassSpecifier
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| typeQualifier
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| typeSpecifier
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)+
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;
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declarationList
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:
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( //ANTLR doesn't know that declarationList properly eats all the declarations
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//so it warns about the ambiguity
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options {
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warnWhenFollowAmbig = false;
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} :
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localLabelDecl
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| declaration
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)+
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;
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localLabelDecl
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: #("__label__" (ID)+ )
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;
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compoundStatement
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: #( NCompoundStatement
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( declarationList
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| functionDef
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)*
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( statementList )?
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RCURLY
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)
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;
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statementList
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: ( statement )+
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;
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statement
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: statementBody
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;
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statementBody
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: SEMI // Empty statements
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| compoundStatement // Group of statements
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| #(NStatementExpr expr) // Expressions
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// Iteration statements:
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| #( "while" expr statement )
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| #( "do" statement expr )
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| #( "for"
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expr expr expr
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statement
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)
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// Jump statements:
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| #( "goto" expr )
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| "continue"
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| "break"
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| #( "return" ( expr )? )
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// Labeled statements:
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| #( NLabel ID (statement)? )
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| #( "case" expr (statement)? )
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| #( "default" (statement)? )
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// Selection statements:
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| #( "if"
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expr statement
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( "else" statement )?
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)
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| #( "switch" expr statement )
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;
|
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/*
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exception
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catch [RecognitionException ex]
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{
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reportError(ex);
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System.out.println("PROBLEM TREE:\n"
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+ _t.toStringList());
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if (_t!=null) {_t = _t.getNextSibling();}
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}
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*/
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expr
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: assignExpr
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| conditionalExpr
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| logicalOrExpr
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| logicalAndExpr
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| inclusiveOrExpr
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| exclusiveOrExpr
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| bitAndExpr
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| equalityExpr
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| relationalExpr
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| shiftExpr
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| additiveExpr
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| multExpr
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| castExpr
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| unaryExpr
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| postfixExpr
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| primaryExpr
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| commaExpr
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| emptyExpr
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| compoundStatementExpr
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| initializer
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| rangeExpr
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| gnuAsmExpr
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;
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commaExpr
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: #(NCommaExpr expr expr)
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;
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emptyExpr
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: NEmptyExpression
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;
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compoundStatementExpr
|
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: #(LPAREN compoundStatement RPAREN)
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;
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rangeExpr
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: #(NRangeExpr expr VARARGS expr)
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;
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gnuAsmExpr
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: #(NGnuAsmExpr
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("volatile")?
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LPAREN stringConst
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( options { warnWhenFollowAmbig = false; }:
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COLON (strOptExprPair ( COMMA strOptExprPair)* )?
|
|
( options { warnWhenFollowAmbig = false; }:
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COLON (strOptExprPair ( COMMA strOptExprPair)* )?
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)?
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|
)?
|
|
( COLON stringConst ( COMMA stringConst)* )?
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RPAREN
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)
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;
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|
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strOptExprPair
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: stringConst ( LPAREN expr RPAREN )?
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|
;
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assignExpr
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: #( ASSIGN expr expr)
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| #( DIV_ASSIGN expr expr)
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| #( PLUS_ASSIGN expr expr)
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| #( MINUS_ASSIGN expr expr)
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| #( STAR_ASSIGN expr expr)
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| #( MOD_ASSIGN expr expr)
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| #( RSHIFT_ASSIGN expr expr)
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| #( LSHIFT_ASSIGN expr expr)
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| #( BAND_ASSIGN expr expr)
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| #( BOR_ASSIGN expr expr)
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| #( BXOR_ASSIGN expr expr)
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;
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|
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conditionalExpr
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: #( QUESTION expr (expr)? COLON expr )
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;
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logicalOrExpr
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: #( LOR expr expr)
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;
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logicalAndExpr
|
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: #( LAND expr expr )
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;
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inclusiveOrExpr
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: #( BOR expr expr )
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;
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exclusiveOrExpr
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: #( BXOR expr expr )
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;
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bitAndExpr
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: #( BAND expr expr )
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;
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|
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equalityExpr
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: #( EQUAL expr expr)
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| #( NOT_EQUAL expr expr)
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;
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relationalExpr
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: #( LT expr expr)
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| #( LTE expr expr)
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| #( GT expr expr)
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| #( GTE expr expr)
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;
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shiftExpr
|
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: #( LSHIFT expr expr)
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| #( RSHIFT expr expr)
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;
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additiveExpr
|
|
: #( PLUS expr expr)
|
|
| #( MINUS expr expr)
|
|
;
|
|
|
|
|
|
multExpr
|
|
: #( STAR expr expr)
|
|
| #( DIV expr expr)
|
|
| #( MOD expr expr)
|
|
;
|
|
|
|
|
|
|
|
castExpr
|
|
: #( NCast typeName RPAREN expr)
|
|
;
|
|
|
|
|
|
typeName
|
|
: specifierQualifierList (nonemptyAbstractDeclarator)?
|
|
;
|
|
|
|
nonemptyAbstractDeclarator
|
|
: #( NNonemptyAbstractDeclarator
|
|
( pointerGroup
|
|
( (LPAREN
|
|
( nonemptyAbstractDeclarator
|
|
| parameterTypeList
|
|
)?
|
|
RPAREN)
|
|
| (LBRACKET (expr)? RBRACKET)
|
|
)*
|
|
|
|
| ( (LPAREN
|
|
( nonemptyAbstractDeclarator
|
|
| parameterTypeList
|
|
)?
|
|
RPAREN)
|
|
| (LBRACKET (expr)? RBRACKET)
|
|
)+
|
|
)
|
|
)
|
|
;
|
|
|
|
|
|
|
|
unaryExpr
|
|
: #( INC expr )
|
|
| #( DEC expr )
|
|
| #( NUnaryExpr unaryOperator expr)
|
|
| #( "sizeof"
|
|
( ( LPAREN typeName )=> LPAREN typeName RPAREN
|
|
| expr
|
|
)
|
|
)
|
|
| #( "__alignof"
|
|
( ( LPAREN typeName )=> LPAREN typeName RPAREN
|
|
| expr
|
|
)
|
|
)
|
|
;
|
|
/*
|
|
exception
|
|
catch [RecognitionException ex]
|
|
{
|
|
reportError(ex);
|
|
System.out.println("PROBLEM TREE:\n"
|
|
+ _t.toStringList());
|
|
if (_t!=null) {_t = _t.getNextSibling();}
|
|
}
|
|
*/
|
|
|
|
unaryOperator
|
|
: BAND
|
|
| STAR
|
|
| PLUS
|
|
| MINUS
|
|
| BNOT
|
|
| LNOT
|
|
| LAND
|
|
| "__real"
|
|
| "__imag"
|
|
;
|
|
|
|
|
|
postfixExpr
|
|
: #( NPostfixExpr
|
|
primaryExpr
|
|
( PTR ID
|
|
| DOT ID
|
|
| #( NFunctionCallArgs (argExprList)? RPAREN )
|
|
| LBRACKET expr RBRACKET
|
|
| INC
|
|
| DEC
|
|
)+
|
|
)
|
|
;
|
|
|
|
|
|
|
|
primaryExpr
|
|
: ID
|
|
| Number
|
|
| charConst
|
|
| stringConst
|
|
|
|
// JTC:
|
|
// ID should catch the enumerator
|
|
// leaving it in gives ambiguous err
|
|
// | enumerator
|
|
|
|
| #( NExpressionGroup expr )
|
|
;
|
|
|
|
|
|
|
|
argExprList
|
|
: ( expr )+
|
|
;
|
|
|
|
|
|
|
|
protected
|
|
charConst
|
|
: CharLiteral
|
|
;
|
|
|
|
|
|
protected
|
|
stringConst
|
|
: #(NStringSeq (StringLiteral)+)
|
|
;
|
|
|
|
|
|
protected
|
|
intConst
|
|
: IntOctalConst
|
|
| LongOctalConst
|
|
| UnsignedOctalConst
|
|
| IntIntConst
|
|
| LongIntConst
|
|
| UnsignedIntConst
|
|
| IntHexConst
|
|
| LongHexConst
|
|
| UnsignedHexConst
|
|
;
|
|
|
|
|
|
protected
|
|
floatConst
|
|
: FloatDoubleConst
|
|
| DoubleDoubleConst
|
|
| LongDoubleConst
|
|
;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|