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dearblue
db1578c123
The issue resolved by the preceding patch was solely the C++ exception task within the mruby core. This patch aims to resolve a similar sequencing issue that also exists in GEMS. In practice, `mruby-compiler` is sometimes loaded via dependencies rather than being explicitly specified in the build configuration file. In such cases, when `mruby-compiler/mrbgem.rake` is loaded, it is not yet determined whether C++ exceptions will be used. Consequently, even if it later becomes clear that `core/codegen-cxx.cxx` and `core/y.tab-cxx.cxx` are required, the system could not handle this. To resolve this issue, we introduce the `MRuby::Gem::Specification#build_settings` method as a mechanism for lazily evaluating build setup. However, for backward compatibility, the commands are cloned twice in `gem.setup` and `gem.setup_build`. This is because many existing GEMS configure commands directly within the setup block. ref. https://github.com/mruby/mruby/issues/6615
43 lines
1.2 KiB
Ruby
43 lines
1.2 KiB
Ruby
MRuby::Gem::Specification.new 'mruby-compiler' do |spec|
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spec.license = 'MIT'
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spec.author = 'mruby developers'
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spec.summary = 'mruby compiler library'
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spec.build_settings do
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objs = %w[codegen y.tab].map do |name|
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src = "#{dir}/core/#{name}.c"
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if build.cxx_exception_enabled?
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build.compile_as_cxx(src)
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else
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objfile(src.pathmap("#{build_dir}/core/%n"))
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end
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end
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build.libmruby_core_objs << objs
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end
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end
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dir = __dir__
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lex_def = "#{dir}/core/lex.def"
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unless Rake::Task.task_defined?(lex_def)
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# Parser
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file "#{dir}/core/y.tab.c" => ["#{dir}/core/parse.y", lex_def] do |t|
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MRuby.targets["host"].yacc.run t.name, t.prerequisites.first
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replace_line_directive(t.name)
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end
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# Lexical analyzer
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file lex_def => "#{dir}/core/keywords" do |t|
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MRuby.targets["host"].gperf.run t.name, t.prerequisites.first
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replace_line_directive(t.name)
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end
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def replace_line_directive(path)
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content = File.read(path).gsub(%r{
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^\#line\s+\d+\s+"\K.*(?="$) | # #line directive
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^/\*\s+Command-line:.*\s\K\S+(?=\s+\*/$) # header comment in lex.def
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}x, &:relative_path)
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File.write(path, content)
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end
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end
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