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GeezerVison is showing github.com — Added option to pass custom C postprocessor by czgdp1807 · Pull Request #1331 · lcompilers/lpython

Added option to pass custom C postprocessor #1331

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czgdp1807 wants to merge 2 commits into lcompilers:main from czgdp1807:post_process

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Added option to pass custom C postprocessor #1331

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3c47c14

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czgdp1807 Nov 29, 2022

004a1af

Write to a file if -o provided --show-c option

czgdp1807 Dec 5, 2022

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Write to a file if -o provided --show-c option

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czgdp1807 committed Dec 5, 2022

commit 004a1af901078e7ebe324ca9bd0db441afba074a

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6 changes: 6 additions & 0 deletions 6 .gitignore

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Original file line number	Diff line number	Diff line change
Expand Up		@@ -218,3 +218,9 @@ integration_tests/array_02_decl.c
		integration_tests/expr_12
		integration_tests/expr_12.c
		integration_tests/expr_07_generated.c
		integration_tests/expr_07.c
		expr_07.c
		tests/c_interop1.c
		tests/expr7.c
		tests/loop1.c
		tests/loop2.c

4 changes: 2 additions & 2 deletions 4 integration_tests/CMakeLists.txt

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Original file line number	Diff line number	Diff line change
Expand Up		@@ -87,13 +87,13 @@ macro(RUN)
		add_custom_command(
		OUTPUT ${name}.c
		COMMAND lpython --show-c ${CMAKE_CURRENT_SOURCE_DIR}/${name}.py
		--custom-c-postprocessor ${CMAKE_CURRENT_SOURCE_DIR}/${custom_c_postprocessor} > ${name}.c
		--custom-c-postprocessor ${CMAKE_CURRENT_SOURCE_DIR}/${custom_c_postprocessor} -o ${name}.c
		DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${name}.py
		VERBATIM)
		else ()
		add_custom_command(
		OUTPUT ${name}.c
		COMMAND lpython --show-c ${CMAKE_CURRENT_SOURCE_DIR}/${name}.py > ${name}.c
		COMMAND lpython --show-c ${CMAKE_CURRENT_SOURCE_DIR}/${name}.py -o ${name}.c
		DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${name}.py
		VERBATIM)
		endif()
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8 changes: 6 additions & 2 deletions 8 integration_tests/test_c_custom_postprocessor.py

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Original file line number	Diff line number	Diff line change
Expand Up		@@ -4,6 +4,10 @@

		filename = sys.argv[1]

		f = open(filename).read()
		file = open(filename, "r")
		f = file.read()
		file.close()

		open(filename, "w").write(f)
		file = open(filename, "w")
		file.write(f)
		file.close()

33 changes: 23 additions & 10 deletions 33 src/bin/lpython.cpp

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Original file line number	Diff line number	Diff line change
Expand Up		@@ -295,21 +295,34 @@ int emit_c(const std::string &infile,
		LFORTRAN_ASSERT(diagnostics.has_error())
		return 3;
		}

		std::string output_file;
		bool print_to_std = true;
		if( !compiler_options.arg_o.empty() ) {
		output_file = compiler_options.arg_o;
		print_to_std = false;
		} else {
		output_file = remove_extension(infile) + ".c";
		}
		std::string ccode_file = output_file;
		std::ofstream ccode_out(ccode_file);
		ccode_out << res.result;
		ccode_out.close();
		if( !compiler_options.c_postprocessor_script.empty() ) {
		std::string ccode_file = remove_extension(infile) + "_generated.c";
		std::ofstream ccode_out(ccode_file);
		ccode_out << res.result;
		std::string command = "python " + compiler_options.c_postprocessor_script + " " + ccode_file;
		system(command.c_str());
		ccode_out.close();
		std::ifstream ccode_in(ccode_file);
		std::string modified_result = "";
		while( std::getline(ccode_in, modified_result) ) {
		std::cout << modified_result << "\n";
		if( print_to_std ) {
		std::ifstream ccode_in(ccode_file);
		std::string modified_result = "";
		while( std::getline(ccode_in, modified_result) ) {
		std::cout << modified_result << "\n";
		}
		ccode_in.close();
		}
		ccode_in.close();
		} else {
		std::cout << res.result;
		if( print_to_std ) {
		std::cout << res.result;
		}
		}
		return 0;
		}
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