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jashkenas--coffeescript
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Revert "upgrading to latest jison, rebuilding the parser" 

This reverts commit fd8b540a66.
This commit is contained in:
Jeremy Ashkenas 2010-02-12 00:15:09 -05:00
parent fd8b540a66
commit 3f765c356a
2 changed files with 32 additions and 9 deletions
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20
lib/coffee_script/parser.js
View File

@ -209,7 +209,7 @@ case 99:this.$ = [$$[$0-1+1-1]];
break;
case 100:this.$ = $$[$0-3+1-1].concat([$$[$0-3+3-1]]);
break;
case 101:this.$ = new LiteralNode(yytext);
case 101:this.$ = yytext;
break;
case 102:this.$ = new SplatNode($$[$0-4+1-1]);
break;
@ -436,6 +436,8 @@ parse: function parse(input) {
var symbol, state, action, a, r, yyval={},p,len,ip=0,newState, expected;
symbol = lex();
while (true) {
// this.trace('stack:',JSON.stringify(stack), '\n\t\t\tinput:', this.lexer._input);
// this.trace('vstack:',JSON.stringify(vstack));
// set first input
state = stack[stack.length-1];
// read action for current state and first input
@ -446,11 +448,13 @@ parse: function parse(input) {
for (p in table[state]) if (this.terminals_[p] && p != 1) {
expected.push("'"+this.terminals_[p]+"'");
}
self.trace("stack:",JSON.stringify(stack), 'symbol:',symbol, 'input', this.lexer.upcomingInput());
if (this.lexer.upcomingInput) self.trace('input', this.lexer.upcomingInput());
parseError('Parse error on line '+(yylineno+1)+'. Expecting: '+expected.join(', ')+"\n"+(this.lexer.showPosition && this.lexer.showPosition()),
{text: this.lexer.match, token: symbol, line: this.lexer.yylineno});
}
this.trace('action:',action);
// this.trace('action:',action);
// this shouldn't happen, unless resolve defaults are off
if (action.length > 1) {
@ -477,6 +481,7 @@ parse: function parse(input) {
reductions++;
len = this.productions_[a[1]][1];
// this.trace('reduce by: ', this.productions ? this.productions[a[1]] : a[1]);
// perform semantic action
yyval.$ = vstack[vstack.length-len]; // default to $$ = $1
@ -486,8 +491,11 @@ parse: function parse(input) {
return r;
}
// this.trace('yyval=',JSON.stringify(yyval.$));
// pop off stack
if (len) {
// this.trace('production length:',len);
stack = stack.slice(0,-1*len*2);
vstack = vstack.slice(0, -1*len);
}
@ -501,8 +509,10 @@ parse: function parse(input) {
case 3: // accept
this.reductionCount = reductions;
this.shiftCount = shifts;
// this.trace('stack:',stack, '\n\tinput:', this.lexer._input);
// this.trace('vstack:',JSON.stringify(vstack));
// this.trace('Total reductions:', reductions);
// this.trace('Total shifts:', shifts);
return true;
}
@ -525,4 +535,4 @@ exports.main = function commonjsMain(args) {
if (require.main === module) {
exports.main(require("system").args);
}
}
}

21
vendor/jison/lib/jison.js vendored
View File

@ -737,6 +737,7 @@ lrGeneratorMixin.parseTable = function parseTable (itemSets) {
if (action.length) {
var sol = resolveConflict(item.production, op, [r,item.production.id], action[0]);
self.resolutions.push([k,stackSymbol,sol]);
//self.trace(sol.msg);
if (sol.bydefault) {
self.conflicts++;
if (!self.DEBUG) {
@ -752,6 +753,7 @@ lrGeneratorMixin.parseTable = function parseTable (itemSets) {
action.push([r,item.production.id]);
}
if (action && action.length) {
//self.trace(k, stackSymbol, action);
state[self.symbols_[stackSymbol]] = action;
}
});
@ -891,12 +893,12 @@ var lrGeneratorDebug = {
afterparseTable: function () {
var self = this;
if (this.conflicts > 0) {
this.trace("\n"+this.conflicts+" Conflict(s) found in grammar:");
this.resolutions.forEach(function (r, i) {
if (r[2].bydefault) {
self.warn('Conflict at state:',r[0], ', Token:',r[1], "\n ", printAction(r[2].r, self), "\n ", printAction(r[2].s, self));
self.warn('State:',r[0], ', Token:',r[1], "\n ", printAction(r[2].r, self), "\n ", printAction(r[2].s, self));
}
});
this.trace("\n"+this.conflicts+" Conflict(s) found in grammar.");
}
this.trace("Done.");
},
@ -974,6 +976,8 @@ parser.parse = function parse (input) {
var symbol, state, action, a, r, yyval={},p,len,ip=0,newState, expected;
symbol = lex();
while (true) {
this.trace('stack:',JSON.stringify(stack), '\n\t\t\tinput:', this.lexer._input);
this.trace('vstack:',JSON.stringify(vstack));
// set first input
state = stack[stack.length-1];
// read action for current state and first input
@ -984,6 +988,8 @@ parser.parse = function parse (input) {
for (p in table[state]) if (this.terminals_[p] && p != 1) {
expected.push("'"+this.terminals_[p]+"'");
}
self.trace("stack:",JSON.stringify(stack), 'symbol:',symbol, 'input', this.lexer.upcomingInput());
if (this.lexer.upcomingInput) self.trace('input', this.lexer.upcomingInput());
parseError('Parse error on line '+(yylineno+1)+'. Expecting: '+expected.join(', ')+"\n"+(this.lexer.showPosition && this.lexer.showPosition()),
{text: this.lexer.match, token: symbol, line: this.lexer.yylineno});
}
@ -1015,6 +1021,7 @@ parser.parse = function parse (input) {
reductions++;
len = this.productions_[a[1]][1];
this.trace('reduce by: ', this.productions ? this.productions[a[1]] : a[1]);
// perform semantic action
yyval.$ = vstack[vstack.length-len]; // default to $$ = $1
@ -1024,8 +1031,11 @@ parser.parse = function parse (input) {
return r;
}
this.trace('yyval=',JSON.stringify(yyval.$));
// pop off stack
if (len) {
this.trace('production length:',len);
stack = stack.slice(0,-1*len*2);
vstack = vstack.slice(0, -1*len);
}
@ -1039,8 +1049,10 @@ parser.parse = function parse (input) {
case 3: // accept
this.reductionCount = reductions;
this.shiftCount = shifts;
this.trace('stack:',stack, '\n\tinput:', this.lexer._input);
this.trace('vstack:',JSON.stringify(vstack));
this.trace('Total reductions:', reductions);
this.trace('Total shifts:', shifts);
return true;
}
@ -1380,6 +1392,7 @@ exports.main = function main (args) {
}
var opt = grammar.options || {};
opt.debug = true;
// lexer file
if (args[2]) {