Generators/genclbuiltins: Use open as context manager to ensure files are closed

Currently there are a good number of files that aren't closed because
the call to the close function is in the wrong loop level. While moving
it in one level would solve the problem, using a context manager is
better style and ensures that the file is closed.

This error was spotted by py.test.

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>

1 files changed, 39 insertions, 41 deletions

diff --git a/generated_tests/genclbuiltins.py b/generated_tests/genclbuiltins.py
index f907ee8c6..338914cb9 100644
--- a/generated_tests/genclbuiltins.py
+++ b/generated_tests/genclbuiltins.py
@@ -436,48 +436,46 @@ def gen(types, minVersions, functions, testDefs, dirName):
 
             fileName = os.path.join(dirName, fileName)
 
-            f = open(fileName, 'w')
-            print(fileName)
-            # Write the file header
-            f.write('/*!\n' +
-                    '[config]\n' +
-                    'name: Test '+dataType+' '+fnName+' built-in on CL 1.1\n' +
-                    'clc_version_min: '+str(clcVersionMin)+'\n' +
-                    'dimensions: 1\n'
-            )
-            if (dataType == 'double'):
-                f.write('require_device_extensions: cl_khr_fp64\n')
-
-            # Blank line  to provide separation between config header and tests
-            f.write('\n')
-
-            # Write all tests for the built-in function
-            tests = functionDef['values']
-            argCount = len(functionDef['arg_types'])
-            fnType = functionDef['function_type']
-
-            outputValues = tests[0]
-            numTests = len(outputValues)
-
-            # Handle all available scalar/vector widths
-            sizes = sorted(VEC_WIDTHS)
-            sizes.insert(0, 1)  # Add 1-wide scalar to the vector widths
-            for vecSize in sizes:
-                if (getNumOutArgs(functionDef) == 1):
-                    print_test(f, fnName, dataType, functionDef, tests,
-                               numTests, vecSize, fnType)
-                else:
-                    for loc in ['_private', '_local', '_global']:
-                        print_test(f, fnName + loc, dataType, functionDef, tests,
+            with open(fileName, 'w') as f:
+                print(fileName)
+                # Write the file header
+                f.write('/*!\n' +
+                        '[config]\n' +
+                        'name: Test '+dataType+' '+fnName+' built-in on CL 1.1\n' +
+                        'clc_version_min: '+str(clcVersionMin)+'\n' +
+                        'dimensions: 1\n'
+                )
+                if (dataType == 'double'):
+                    f.write('require_device_extensions: cl_khr_fp64\n')
+
+                # Blank line  to provide separation between config header and tests
+                f.write('\n')
+
+                # Write all tests for the built-in function
+                tests = functionDef['values']
+                argCount = len(functionDef['arg_types'])
+                fnType = functionDef['function_type']
+
+                outputValues = tests[0]
+                numTests = len(outputValues)
+
+                # Handle all available scalar/vector widths
+                sizes = sorted(VEC_WIDTHS)
+                sizes.insert(0, 1)  # Add 1-wide scalar to the vector widths
+                for vecSize in sizes:
+                    if (getNumOutArgs(functionDef) == 1):
+                        print_test(f, fnName, dataType, functionDef, tests,
                                    numTests, vecSize, fnType)
+                    else:
+                        for loc in ['_private', '_local', '_global']:
+                            print_test(f, fnName + loc, dataType, functionDef, tests,
+                                       numTests, vecSize, fnType)
 
-            # Terminate the header section
-            f.write('!*/\n\n')
-
-            if (dataType == 'double'):
-                f.write('#pragma OPENCL EXTENSION cl_khr_fp64 : enable\n\n')
+                # Terminate the header section
+                f.write('!*/\n\n')
 
-            # Generate the actual kernels
-            generate_kernels(f, dataType, fnName, functionDef)
+                if (dataType == 'double'):
+                    f.write('#pragma OPENCL EXTENSION cl_khr_fp64 : enable\n\n')
 
-        f.close()
+                # Generate the actual kernels
+                generate_kernels(f, dataType, fnName, functionDef)