Some HTML error fixes
Long blockquote lines shortened git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@6063 626c5289-ae23-0410-ae9c-e8d60b6d4f22
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William S Fulton
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881e85e1cd
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17 changed files with 233 additions and 179 deletions
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@ -767,7 +767,10 @@ the <em>is_a?</em> relationship would fail). When SWIG processes this
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interface file,
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you'll see a warning message like:
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<blockquote>
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<pre>example.i:5: Warning(802): Warning for Derived: Base Base2 ignored. Multiple inheritance is not supported in Ruby.<br></pre>
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<pre>
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example.i:5: Warning(802): Warning for Derived: Base Base2 ignored.
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Multiple inheritance is not supported in Ruby.
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</pre>
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</blockquote>
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Starting with SWIG 1.3.20, the Ruby module for SWIG provides limited
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support
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@ -854,7 +857,10 @@ or
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If declarations such as these appear, you will get a warning message
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like this:
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<blockquote>
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<pre>example.i:12: Warning(509): Overloaded spam(short) is shadowed by spam(int) at example.i:11.<br></pre>
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<pre>
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example.i:12: Warning(509): Overloaded spam(short) is shadowed by spam(int)
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at example.i:11.
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</pre>
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</blockquote>
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To fix this, you either need to ignore or rename one of the methods.
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For example:
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@ -1603,7 +1609,10 @@ somehow extracts the last three arguments (<i>nattributes</i>, <i>names</i>
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and
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<i>values</i>) needed by your C function. Let's start with the basics:
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<blockquote>
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<pre>%typemap(in) (int nattributes, const char **names, const int *values) (VALUE keys_arr, int i, VALUE key, VALUE val) {<br>}<br></pre>
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<pre>
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%typemap(in) (int nattributes, const char **names, const int *values)
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(VALUE keys_arr, int i, VALUE key, VALUE val) {<br>}
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</pre>
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</blockquote>
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This <tt>%typemap</tt> directive tells SWIG that we want to match any
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function declaration that
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@ -1622,7 +1631,9 @@ and <i>val</i>) define local variables that our typemap will need.
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next add a check for that:
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</p>
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<blockquote>
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<pre>%typemap(in) (int nattributes, const char **names, const int *values) (VALUE keys_arr, int i, VALUE key, VALUE val) {<br> <b>Check_Type($input, T_HASH);</b>
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<pre>
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%typemap(in) (int nattributes, const char **names, const int *values)
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(VALUE keys_arr, int i, VALUE key, VALUE val) {<br> <b>Check_Type($input, T_HASH);</b>
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}
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</pre>
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</blockquote>
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@ -1640,7 +1651,9 @@ get around that by calling the hash's <i>size</i> method directly and
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converting its result
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to a C <tt>int</tt> value: </p>
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<blockquote>
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<pre>%typemap(in) (int nattributes, const char **names, const int *values) (VALUE keys_arr, int i, VALUE key, VALUE val) {<br> Check_Type($input, T_HASH);<br> <b>$1 = NUM2INT(rb_funcall($input, rb_intern("size"), 0, NULL));</b>
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<pre>
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%typemap(in) (int nattributes, const char **names, const int *values)
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(VALUE keys_arr, int i, VALUE key, VALUE val) {<br> Check_Type($input, T_HASH);<br> <b>$1 = NUM2INT(rb_funcall($input, rb_intern("size"), 0, NULL));</b>
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}
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</pre>
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</blockquote>
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@ -1650,7 +1663,9 @@ third typemap arguments (i.e. the two C arrays) to <tt>NULL</tt> and
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set the stage
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for extracting the keys and values from the hash:
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<blockquote>
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<pre>%typemap(in) (int nattributes, const char **names, const int *values) (VALUE keys_arr, int i, VALUE key, VALUE val) {<br> Check_Type($input, T_HASH);<br> $1 = NUM2INT(rb_funcall($input, rb_intern("size"), 0, NULL));<br> <b>$2 = NULL;<br> $3 = NULL;<br> if ($1 > 0) {<br> $2 = (char **) malloc($1*sizeof(char *));<br> $3 = (int *) malloc($1*sizeof(int));<br> }</b>
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<pre>
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%typemap(in) (int nattributes, const char **names, const int *values)
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(VALUE keys_arr, int i, VALUE key, VALUE val) {<br> Check_Type($input, T_HASH);<br> $1 = NUM2INT(rb_funcall($input, rb_intern("size"), 0, NULL));<br> <b>$2 = NULL;<br> $3 = NULL;<br> if ($1 > 0) {<br> $2 = (char **) malloc($1*sizeof(char *));<br> $3 = (int *) malloc($1*sizeof(int));<br> }</b>
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}
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</pre>
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</blockquote>
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@ -1662,7 +1677,9 @@ method
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the elements
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in that array:
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<blockquote>
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<pre>%typemap(in) (int nattributes, const char **names, const int *values) (VALUE keys_arr, int i, VALUE key, VALUE val) {<br> Check_Type($input, T_HASH);<br> $1 = NUM2INT(rb_funcall($input, rb_intern("size"), 0, NULL));<br> $2 = NULL;<br> $3 = NULL;<br> if ($1 > 0) {<br> $2 = (char **) malloc($1*sizeof(char *));<br> $3 = (int *) malloc($1*sizeof(int));<br> <b>keys_arr = rb_funcall($input, rb_intern("keys"), 0, NULL);<br> for (i = 0; i < $1; i++) {<br> }</b>
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<pre>
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%typemap(in) (int nattributes, const char **names, const int *values)
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(VALUE keys_arr, int i, VALUE key, VALUE val) {<br> Check_Type($input, T_HASH);<br> $1 = NUM2INT(rb_funcall($input, rb_intern("size"), 0, NULL));<br> $2 = NULL;<br> $3 = NULL;<br> if ($1 > 0) {<br> $2 = (char **) malloc($1*sizeof(char *));<br> $3 = (int *) malloc($1*sizeof(int));<br> <b>keys_arr = rb_funcall($input, rb_intern("keys"), 0, NULL);<br> for (i = 0; i < $1; i++) {<br> }</b>
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}
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}
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</pre>
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@ -1672,7 +1689,9 @@ typemap. For each element in the <i>keys_arr</i>
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array, we want to get the key itself, as well as the value
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corresponding to that key in the hash:
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<blockquote>
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<pre>%typemap(in) (int nattributes, const char **names, const int *values) (VALUE keys_arr, int i, VALUE key, VALUE val) {<br> Check_Type($input, T_HASH);<br> $1 = NUM2INT(rb_funcall($input, rb_intern("size"), 0, NULL));<br> $2 = NULL;<br> $3 = NULL;<br> if ($1 > 0) {<br> $2 = (char **) malloc($1*sizeof(char *));<br> $3 = (int *) malloc($1*sizeof(int));<br> keys_arr = rb_funcall($input, rb_intern("keys"), 0, NULL);<br> for (i = 0; i < $1; i++) {<br> <b>key = rb_ary_entry(keys_arr, i);<br> val = rb_hash_aref($input, key);</b>
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<pre>
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%typemap(in) (int nattributes, const char **names, const int *values)
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(VALUE keys_arr, int i, VALUE key, VALUE val) {<br> Check_Type($input, T_HASH);<br> $1 = NUM2INT(rb_funcall($input, rb_intern("size"), 0, NULL));<br> $2 = NULL;<br> $3 = NULL;<br> if ($1 > 0) {<br> $2 = (char **) malloc($1*sizeof(char *));<br> $3 = (int *) malloc($1*sizeof(int));<br> keys_arr = rb_funcall($input, rb_intern("keys"), 0, NULL);<br> for (i = 0; i < $1; i++) {<br> <b>key = rb_ary_entry(keys_arr, i);<br> val = rb_hash_aref($input, key);</b>
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}
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}
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}
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@ -1682,7 +1701,9 @@ To be safe, we should again use the <tt>Check_Type()</tt> macro to
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confirm that the
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key is a <tt>String</tt> and the value is a <tt>Fixnum</tt>:
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<blockquote>
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<pre>%typemap(in) (int nattributes, const char **names, const int *values) (VALUE keys_arr, int i, VALUE key, VALUE val) {<br> Check_Type($input, T_HASH);<br> $1 = NUM2INT(rb_funcall($input, rb_intern("size"), 0, NULL));<br> $2 = NULL;<br> $3 = NULL;<br> if ($1 > 0) {<br> $2 = (char **) malloc($1*sizeof(char *));<br> $3 = (int *) malloc($1*sizeof(int));<br> keys_arr = rb_funcall($input, rb_intern("keys"), 0, NULL);<br> for (i = 0; i < $1; i++) {<br> key = rb_ary_entry(keys_arr, i);<br> val = rb_hash_aref($input, key);<br> <b>Check_Type(key, T_STRING);<br> Check_Type(val, T_FIXNUM);</b>
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<pre>
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%typemap(in) (int nattributes, const char **names, const int *values)
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(VALUE keys_arr, int i, VALUE key, VALUE val) {<br> Check_Type($input, T_HASH);<br> $1 = NUM2INT(rb_funcall($input, rb_intern("size"), 0, NULL));<br> $2 = NULL;<br> $3 = NULL;<br> if ($1 > 0) {<br> $2 = (char **) malloc($1*sizeof(char *));<br> $3 = (int *) malloc($1*sizeof(int));<br> keys_arr = rb_funcall($input, rb_intern("keys"), 0, NULL);<br> for (i = 0; i < $1; i++) {<br> key = rb_ary_entry(keys_arr, i);<br> val = rb_hash_aref($input, key);<br> <b>Check_Type(key, T_STRING);<br> Check_Type(val, T_FIXNUM);</b>
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}
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}
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}
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@ -1692,7 +1713,9 @@ Finally, we can convert these Ruby objects into their C equivalents and
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store them
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in our local C arrays:
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<blockquote>
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<pre>%typemap(in) (int nattributes, const char **names, const int *values) (VALUE keys_arr, int i, VALUE key, VALUE val) {<br> Check_Type($input, T_HASH);<br> $1 = NUM2INT(rb_funcall($input, rb_intern("size"), 0, NULL));<br> $2 = NULL;<br> $3 = NULL;<br> if ($1 > 0) {<br> $2 = (char **) malloc($1*sizeof(char *));<br> $3 = (int *) malloc($1*sizeof(int));<br> keys_arr = rb_funcall($input, rb_intern("keys"), 0, NULL);<br> for (i = 0; i < $1; i++) {<br> key = rb_ary_entry(keys_arr, i);<br> val = rb_hash_aref($input, key);<br> Check_Type(key, T_STRING);<br> Check_Type(val, T_FIXNUM);<br> <b>$2[i] = STR2CSTR(key);<br> $3[i] = NUM2INT(val);</b>
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<pre>
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%typemap(in) (int nattributes, const char **names, const int *values)
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(VALUE keys_arr, int i, VALUE key, VALUE val) {<br> Check_Type($input, T_HASH);<br> $1 = NUM2INT(rb_funcall($input, rb_intern("size"), 0, NULL));<br> $2 = NULL;<br> $3 = NULL;<br> if ($1 > 0) {<br> $2 = (char **) malloc($1*sizeof(char *));<br> $3 = (int *) malloc($1*sizeof(int));<br> keys_arr = rb_funcall($input, rb_intern("keys"), 0, NULL);<br> for (i = 0; i < $1; i++) {<br> key = rb_ary_entry(keys_arr, i);<br> val = rb_hash_aref($input, key);<br> Check_Type(key, T_STRING);<br> Check_Type(val, T_FIXNUM);<br> <b>$2[i] = STR2CSTR(key);<br> $3[i] = NUM2INT(val);</b>
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}
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}
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}
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