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6c06c547dc
POSIX Issue 8 will require a new assignment operator, :::=. This operator behaves similarly to the BSD make := operator: the right-hand side is expanded immediately, but then the value is re-escaped (all '$' are converted to '$$') and the resulting variable is considered a recursive variable: the value is re-expanded on use. * src/variable.h (enum variable_flavor): Add f_expand flavor. * src/variable.c (do_variable_definition): When defining f_expand, post-process the result to re-escape '$' characters. Remove default: to the compiler warns about un-handled enum values. Set recursive values for both f_recursive and f_expand. (parse_variable_definition): Rewrite this method. The previous version was annoying to extend to ':::='. (print_variable): Remove default: so the compiler warns us about un-handled enum values. * src/function.c (func_origin): Remove default: so the compiler warns us about un-handled enum values. * doc/make.texi: Add documentation for :::=. * tests/scripts/variables/define: Add a test for define :::=. * tests/scripts/variables/flavors: Add tests for :::=. * tests/scripts/variables/negative: Add tests for :::=.
61 lines
1.5 KiB
Perl
61 lines
1.5 KiB
Perl
# -*-perl-*-
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$description = "Run some negative tests (things that should fail).";
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# TEST #0
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# Check that non-terminated variable references are detected (and
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# reported using the best filename/lineno info
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run_make_test('
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foo = bar
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x = $(foo
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y = $x
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all: ; @echo $y
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',
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'', '#MAKEFILE#:3: *** unterminated variable reference. Stop.',
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512);
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# TEST #1
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# Bogus variable value passed on the command line.
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run_make_test(undef,
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['x=$(other'],
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'#MAKEFILE#:4: *** unterminated variable reference. Stop.',
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512);
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# TEST #2
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# Again, but this time while reading the makefile.
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run_make_test('
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foo = bar
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x = $(foo
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y = $x
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z := $y
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all: ; @echo $y
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',
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'', '#MAKEFILE#:3: *** unterminated variable reference. Stop.',
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512);
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# TEST #3
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# Bogus variable value passed on the command line.
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run_make_test(undef,
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['x=$(other'],
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'#MAKEFILE#:4: *** unterminated variable reference. Stop.',
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512);
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# Whitespace not allowed in variable names
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run_make_test('x y =', '',
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'#MAKEFILE#:1: *** missing separator. Stop.', 512);
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run_make_test('x y=', '',
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'#MAKEFILE#:1: *** missing separator. Stop.', 512);
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# In theory an empty variable should be ignored, but during parsing it's a
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# real token and so this fails. I'm not 100% sure if this is right or not.
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run_make_test('x $X=', '',
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'#MAKEFILE#:1: *** missing separator. Stop.', 512);
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1;
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