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ORCA-C
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Add lint check for return with no value in a non-void function. 

This is disallowed in C99 and later.
This commit is contained in:
Stephen Heumann 2020-01-29 18:50:45 -06:00
parent a9f5fb13d8
commit 4fd642abb4
2 changed files with 9 additions and 3 deletions
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7
Parser.pas
View File

@ -763,7 +763,12 @@ var
end;
otherwise: ;
end; {case}
end; {if}
end {if}
else begin
if (fType^.kind <> scalarType) or (fType^.baseType <> cgVoid) then
if (lint & lintC99Syntax) <> 0 then
Error(152);
end; {else}
Gen1(pc_ujp, returnLabel); {branch to the exit point}
Match(semicolonch, 22); {insist on a closing ';'}
end; {ReturnStatement}

5
Scanner.pas
View File

@ -182,7 +182,7 @@ const
{----}
defaultName = '13:ORCACDefs:Defaults.h'; {default include file name}
maxErr = 10; {max errors on one line}
maxLint = 151; {maximum lint error code}
maxLint = 152; {maximum lint error code}
type
errorType = record {record of a single error}
@ -676,6 +676,7 @@ if list or (numErr <> 0) then begin
149: msg := @'invalid universal character name for use in an identifier';
150: msg := @'designated initializers are not supported by ORCA/C';
151: msg := @'lint: type specifier missing';
152: msg := @'lint: return with no value in non-void function';
otherwise: Error(57);
end; {case}
writeln(msg^);
@ -3636,7 +3637,7 @@ lintIsError := true; {lint messages are considered errors}
{error codes for lint messages}
{if changed, also change maxLint}
lintErrors := [51,104,105,110,124,125,128,129,130,147,151];
lintErrors := [51,104,105,110,124,125,128,129,130,147,151,152];
new(mp); {__LINE__}
mp^.name := @'__LINE__';