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capture coverage information without stopping the coverage tool. [ruby-core:67940] [Feature #10816] * test/coverage/test_coverage.rb: test for change. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@49589 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
132 lines
3.1 KiB
C
132 lines
3.1 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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#include "vm_core.h"
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static VALUE rb_coverages = Qundef;
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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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if (rb_coverages == Qundef) {
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rb_coverages = rb_hash_new();
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rb_obj_hide(rb_coverages);
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}
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rb_set_coverages(rb_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_clear_result_i(st_data_t key, st_data_t val, st_data_t h)
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{
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VALUE coverage = (VALUE)val;
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rb_ary_clear((VALUE)val);
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return ST_CONTINUE;
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}
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static int
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coverage_peek_result_i(st_data_t key, st_data_t val, st_data_t h)
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{
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VALUE path = (VALUE)key;
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VALUE coverage = (VALUE)val;
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VALUE coverages = (VALUE)h;
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coverage = rb_ary_dup(coverage);
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rb_ary_freeze(coverage);
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rb_hash_aset(coverages, path, 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.peek_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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*/
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static VALUE
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rb_coverage_peek_result(VALUE klass)
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{
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VALUE coverages = rb_get_coverages();
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VALUE ncoverages = rb_hash_new();
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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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st_foreach(RHASH_TBL(coverages), coverage_peek_result_i, ncoverages);
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rb_hash_freeze(ncoverages);
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return ncoverages;
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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 ncoverages = rb_coverage_peek_result(klass);
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VALUE coverages = rb_get_coverages();
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st_foreach(RHASH_TBL(coverages), coverage_clear_result_i, ncoverages);
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rb_reset_coverages();
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return ncoverages;
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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. A coverage array gives, for each line, the
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* number of line execution by the interpreter. A +nil+ value means
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* coverage is disabled for this line (lines like +else+ and +end+).
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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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rb_define_module_function(rb_mCoverage, "peek_result", rb_coverage_peek_result, 0);
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rb_gc_register_address(&rb_coverages);
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}
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