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java: add access to the number of errors

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* data/skeletons/lalr1.java (yynewrrs, getNumberOfErrors): New.
Formatting changes.
This commit is contained in:
Akim Demaille
2020-02-02 07:44:31 +01:00
parent edf495b38e
commit 88d1ab421a
1 changed files with 11 additions and 4 deletions
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15
data/skeletons/lalr1.java
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@@ -64,8 +64,7 @@ m4_define([b4_define_state],[[
YYStack yystack = new YYStack (); YYStack yystack = new YYStack ();
int label = YYNEWSTATE; int label = YYNEWSTATE;
/* Error handling. */ ]b4_locations_if([[
int yynerrs_ = 0;]b4_locations_if([[
/* The location where the error started. */ /* The location where the error started. */
]b4_location_type[ yyerrloc = null; ]b4_location_type[ yyerrloc = null;
@@ -285,6 +284,13 @@ m4_define([b4_define_state],[[
public final void setDebugLevel (int level) { yydebug = level; } public final void setDebugLevel (int level) { yydebug = level; }
]])[ ]])[
private int yynerrs = 0;
/**
* The number of syntax errors so far.
*/
public final int getNumberOfErrors () { return yynerrs; }
/** /**
* Print an error message via the lexer. * Print an error message via the lexer.
*]b4_locations_if([[ Use a <code>null</code> location.]])[ *]b4_locations_if([[ Use a <code>null</code> location.]])[
@@ -561,6 +567,7 @@ m4_define([b4_define_state],[[
]b4_define_state[]b4_parse_trace_if([[ ]b4_define_state[]b4_parse_trace_if([[
yycdebug ("Starting parse\n");]])[ yycdebug ("Starting parse\n");]])[
yyerrstatus_ = 0; yyerrstatus_ = 0;
yynerrs = 0;
/* Initialize the stack. */ /* Initialize the stack. */
yystack.push (yystate, yylval]b4_locations_if([, yylloc])[); yystack.push (yystate, yylval]b4_locations_if([, yylloc])[);
@@ -700,7 +707,7 @@ b4_dollar_popdef[]dnl
/* If not already recovering from an error, report this error. */ /* If not already recovering from an error, report this error. */
if (yyerrstatus_ == 0) if (yyerrstatus_ == 0)
{ {
++yynerrs_; ++yynerrs;
if (yychar == yyempty_) if (yychar == yyempty_)
yytoken = yyempty_; yytoken = yyempty_;
yyerror (]b4_locations_if([yylloc, ])[yysyntax_error (yystate, yytoken)); yyerror (]b4_locations_if([yylloc, ])[yysyntax_error (yystate, yytoken));
@@ -825,7 +832,7 @@ b4_dollar_popdef[]dnl
this.label = YYNEWSTATE; this.label = YYNEWSTATE;
/* Error handling. */ /* Error handling. */
this.yynerrs_ = 0;]b4_locations_if([[ this.yynerrs = 0;]b4_locations_if([[
/* The location where the error started. */ /* The location where the error started. */
this.yyerrloc = null; this.yyerrloc = null;
this.yylloc = new ]b4_location_type[ (null, null);]])[ this.yylloc = new ]b4_location_type[ (null, null);]])[