error.c: SyntaxError#initialize

* error.c (syntax_error_initialize): move the default message,
  "compile error", from parse.y.  the default parameter should
  belong to the class definition.
* parse.y (yycompile0): use the default parameter.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54654 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 20 insertions, 0 deletions

diff --git a/error.c b/error.c
index 89858719c1..214d12df5d 100644
--- a/error.c
+++ b/error.c
@@ -1362,6 +1362,25 @@ rb_invalid_str(const char *str, const char *type)
 }
 
 /*
+ * call-seq:
+ *   SyntaxError.new([msg])  -> syntax_error
+ *
+ * Construct a SyntaxError exception.
+ */
+
+static VALUE
+syntax_error_initialize(int argc, VALUE *argv, VALUE self)
+{
+    VALUE mesg;
+    if (argc == 0) {
+	mesg = rb_fstring_cstr("compile error");
+	argc = 1;
+	argv = &mesg;
+    }
+    return rb_call_super(argc, argv);
+}
+
+/*
  *  Document-module: Errno
  *
  *  Ruby exception objects are subclasses of <code>Exception</code>.
@@ -1960,6 +1979,7 @@ Init_Exception(void)
 
     rb_eScriptError = rb_define_class("ScriptError", rb_eException);
     rb_eSyntaxError = rb_define_class("SyntaxError", rb_eScriptError);
+    rb_define_method(rb_eSyntaxError, "initialize", syntax_error_initialize, -1);
 
     rb_eLoadError   = rb_define_class("LoadError", rb_eScriptError);
     /* the path failed to load */