[ruby/date] Check for numeric arguments in constructors

Previously, the type of these arguments were not checked, leading to
NoMethodErrors in some cases, and TypeErrors in other cases, but not
showing what field was having the problems.  This change makes it so
the field with the problem is included in the error message.

For the valid_*? methods, this changes them to return false if one
of the arguments that should be numeric is not.

Fixes Ruby Bug 11935
Fixes Ruby Misc 15298

https://github.com/ruby/date/commit/a2f4b665f8

1 files changed, 49 insertions, 0 deletions

diff --git a/ext/date/date_core.c b/ext/date/date_core.c
index 71d0da59f8..0483d2d028 100644
--- a/ext/date/date_core.c
+++ b/ext/date/date_core.c
@@ -54,6 +54,14 @@ static double positive_inf, negative_inf;
 static VALUE date_initialize(int argc, VALUE *argv, VALUE self);
 static VALUE datetime_initialize(int argc, VALUE *argv, VALUE self);
 
+#define RETURN_FALSE_UNLESS_NUMERIC(obj) if(!RTEST(rb_obj_is_kind_of((obj), rb_cNumeric))) return Qfalse
+inline static void
+check_numeric(VALUE obj, const char* field) {
+    if(!RTEST(rb_obj_is_kind_of(obj, rb_cNumeric))) {
+        rb_raise(rb_eTypeError, "invalid %s (not numeric)", field);
+    }
+}
+
 inline static int
 f_cmp(VALUE x, VALUE y)
 {
@@ -2470,6 +2478,7 @@ date_s_valid_jd_p(int argc, VALUE *argv, VALUE klass)
 
     rb_scan_args(argc, argv, "11", &vjd, &vsg);
 
+    RETURN_FALSE_UNLESS_NUMERIC(vjd);
     argv2[0] = vjd;
     if (argc < 2)
 	argv2[1] = INT2FIX(DEFAULT_SG);
@@ -2562,6 +2571,9 @@ date_s_valid_civil_p(int argc, VALUE *argv, VALUE klass)
 
     rb_scan_args(argc, argv, "31", &vy, &vm, &vd, &vsg);
 
+    RETURN_FALSE_UNLESS_NUMERIC(vy);
+    RETURN_FALSE_UNLESS_NUMERIC(vm);
+    RETURN_FALSE_UNLESS_NUMERIC(vd);
     argv2[0] = vy;
     argv2[1] = vm;
     argv2[2] = vd;
@@ -2643,6 +2655,8 @@ date_s_valid_ordinal_p(int argc, VALUE *argv, VALUE klass)
 
     rb_scan_args(argc, argv, "21", &vy, &vd, &vsg);
 
+    RETURN_FALSE_UNLESS_NUMERIC(vy);
+    RETURN_FALSE_UNLESS_NUMERIC(vd);
     argv2[0] = vy;
     argv2[1] = vd;
     if (argc < 3)
@@ -2725,6 +2739,9 @@ date_s_valid_commercial_p(int argc, VALUE *argv, VALUE klass)
 
     rb_scan_args(argc, argv, "31", &vy, &vw, &vd, &vsg);
 
+    RETURN_FALSE_UNLESS_NUMERIC(vy);
+    RETURN_FALSE_UNLESS_NUMERIC(vw);
+    RETURN_FALSE_UNLESS_NUMERIC(vd);
     argv2[0] = vy;
     argv2[1] = vw;
     argv2[2] = vd;
@@ -2906,6 +2923,7 @@ date_s_julian_leap_p(VALUE klass, VALUE y)
     VALUE nth;
     int ry;
 
+    check_numeric(y, "year");
     decode_year(y, +1, &nth, &ry);
     return f_boolcast(c_julian_leap_p(ry));
 }
@@ -2927,6 +2945,7 @@ date_s_gregorian_leap_p(VALUE klass, VALUE y)
     VALUE nth;
     int ry;
 
+    check_numeric(y, "year");
     decode_year(y, -1, &nth, &ry);
     return f_boolcast(c_gregorian_leap_p(ry));
 }
@@ -3281,6 +3300,7 @@ date_s_jd(int argc, VALUE *argv, VALUE klass)
       case 2:
 	val2sg(vsg, sg);
       case 1:
+        check_numeric(vjd, "jd");
 	num2num_with_frac(jd, positive_inf);
     }
 
@@ -3333,8 +3353,10 @@ date_s_ordinal(int argc, VALUE *argv, VALUE klass)
       case 3:
 	val2sg(vsg, sg);
       case 2:
+        check_numeric(vd, "yday");
 	num2int_with_frac(d, positive_inf);
       case 1:
+        check_numeric(vy, "year");
 	y = vy;
     }
 
@@ -3413,10 +3435,13 @@ date_initialize(int argc, VALUE *argv, VALUE self)
       case 4:
 	val2sg(vsg, sg);
       case 3:
+        check_numeric(vd, "day");
 	num2int_with_frac(d, positive_inf);
       case 2:
+        check_numeric(vd, "month");
 	m = NUM2INT(vm);
       case 1:
+        check_numeric(vy, "year");
 	y = vy;
     }
 
@@ -3483,10 +3508,13 @@ date_s_commercial(int argc, VALUE *argv, VALUE klass)
       case 4:
 	val2sg(vsg, sg);
       case 3:
+        check_numeric(vd, "cwday");
 	num2int_with_frac(d, positive_inf);
       case 2:
+        check_numeric(vw, "cweek");
 	w = NUM2INT(vw);
       case 1:
+        check_numeric(vy, "year");
 	y = vy;
     }
 
@@ -7244,12 +7272,16 @@ datetime_s_jd(int argc, VALUE *argv, VALUE klass)
       case 5:
 	val2off(vof, rof);
       case 4:
+        check_numeric(vs, "second");
 	num2int_with_frac(s, positive_inf);
       case 3:
+        check_numeric(vmin, "minute");
 	num2int_with_frac(min, 3);
       case 2:
+        check_numeric(vh, "hour");
 	num2int_with_frac(h, 2);
       case 1:
+        check_numeric(vjd, "jd");
 	num2num_with_frac(jd, 1);
     }
 
@@ -7313,14 +7345,19 @@ datetime_s_ordinal(int argc, VALUE *argv, VALUE klass)
       case 6:
 	val2off(vof, rof);
       case 5:
+        check_numeric(vs, "second");
 	num2int_with_frac(s, positive_inf);
       case 4:
+        check_numeric(vmin, "minute");
 	num2int_with_frac(min, 4);
       case 3:
+        check_numeric(vh, "hour");
 	num2int_with_frac(h, 3);
       case 2:
+        check_numeric(vd, "yday");
 	num2int_with_frac(d, 2);
       case 1:
+        check_numeric(vy, "year");
 	y = vy;
     }
 
@@ -7401,16 +7438,22 @@ datetime_initialize(int argc, VALUE *argv, VALUE self)
       case 7:
 	val2off(vof, rof);
       case 6:
+        check_numeric(vs, "second");
 	num2int_with_frac(s, positive_inf);
       case 5:
+        check_numeric(vmin, "minute");
 	num2int_with_frac(min, 5);
       case 4:
+        check_numeric(vh, "hour");
 	num2int_with_frac(h, 4);
       case 3:
+        check_numeric(vd, "day");
 	num2int_with_frac(d, 3);
       case 2:
+        check_numeric(vm, "month");
 	m = NUM2INT(vm);
       case 1:
+        check_numeric(vy, "year");
 	y = vy;
     }
 
@@ -7499,16 +7542,22 @@ datetime_s_commercial(int argc, VALUE *argv, VALUE klass)
       case 7:
 	val2off(vof, rof);
       case 6:
+        check_numeric(vs, "second");
 	num2int_with_frac(s, positive_inf);
       case 5:
+        check_numeric(vmin, "minute");
 	num2int_with_frac(min, 5);
       case 4:
+        check_numeric(vh, "hour");
 	num2int_with_frac(h, 4);
       case 3:
+        check_numeric(vd, "cwday");
 	num2int_with_frac(d, 3);
       case 2:
+        check_numeric(vw, "cweek");
 	w = NUM2INT(vw);
       case 1:
+        check_numeric(vy, "year");
 	y = vy;
     }