102 lines
2.2 KiB
C
102 lines
2.2 KiB
C
/************************************************
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coverage.c -
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$Author: $
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Copyright (c) 2008 Yusuke Endoh
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************************************************/
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#include "ruby.h"
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extern VALUE rb_get_coverages(void);
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extern void rb_set_coverages(VALUE);
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extern void rb_reset_coverages(void);
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/*
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* call-seq:
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* Coverage.start => nil
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*
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* Enables coverage measurement.
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*/
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static VALUE
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rb_coverage_start(VALUE klass)
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{
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if (!RTEST(rb_get_coverages())) {
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VALUE coverages = rb_hash_new();
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RBASIC(coverages)->klass = 0;
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rb_set_coverages(coverages);
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}
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return Qnil;
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}
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static int
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coverage_result_i(st_data_t key, st_data_t val, st_data_t dummy)
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{
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VALUE coverage = (VALUE)val;
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RBASIC(coverage)->klass = rb_cArray;
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rb_ary_freeze(coverage);
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return ST_CONTINUE;
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}
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/*
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* call-seq:
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* Coverage.result => hash
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*
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* Returns a hash that contains filename as key and coverage array as value
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* and disables coverage measurement.
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*/
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static VALUE
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rb_coverage_result(VALUE klass)
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{
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VALUE coverages = rb_get_coverages();
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if (!RTEST(coverages)) {
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rb_raise(rb_eRuntimeError, "coverage measurement is not enabled");
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}
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RBASIC(coverages)->klass = rb_cHash;
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st_foreach(RHASH_TBL(coverages), coverage_result_i, 0);
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rb_hash_freeze(coverages);
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rb_reset_coverages();
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return coverages;
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}
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/* Coverage provides coverage measurement feature for Ruby.
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* This feature is experimental, so these APIs may be changed in future.
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*
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* = Usage
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*
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* (1) require "coverage.so"
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* (2) do Coverage.start
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* (3) require or load Ruby source file
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* (4) Coverage.result will return a hash that contains filename as key and
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* coverage array as value.
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*
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* = Example
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*
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* [foo.rb]
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* s = 0
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* 10.times do |x|
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* s += x
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* end
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*
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* if s == 45
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* p :ok
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* else
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* p :ng
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* end
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* [EOF]
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*
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* require "coverage.so"
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* Coverage.start
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* require "foo.rb"
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* p Coverage.result #=> {"foo.rb"=>[1, 1, 10, nil, nil, 1, 1, nil, 0, nil]}
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*/
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void
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Init_coverage(void)
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{
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VALUE rb_mCoverage = rb_define_module("Coverage");
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rb_define_module_function(rb_mCoverage, "start", rb_coverage_start, 0);
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rb_define_module_function(rb_mCoverage, "result", rb_coverage_result, 0);
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}
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