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Add arithmetic metatag processing when left hand side is a number and right hand side has metatable

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This commit is contained in:
James Roseborough
2011-11-13 18:08:18 +00:00
parent 4d605cfedc
commit ebb7169f17
3 changed files with 90 additions and 46 deletions
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43
test/junit/org/luaj/vm2/UnaryBinaryOperatorsTest.java
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@@ -633,8 +633,49 @@ public class UnaryBinaryOperatorsTest extends TestCase {
} finally {
LuaBoolean.s_metatable = null;
}
}
}
public void testArithMetatagNumberTable() {
LuaValue zero = LuaValue.ZERO;
LuaValue one = LuaValue.ONE;
LuaValue tbl = new LuaTable();
try { tbl.add(zero); fail("did not throw error"); } catch ( LuaError le ) { };
try { zero.add(tbl); fail("did not throw error"); } catch ( LuaError le ) { };
tbl.setmetatable(LuaValue.tableOf( new LuaValue[] { LuaValue.ADD, RETURN_ONE, } ));
assertEquals( one, tbl.add(zero) );
assertEquals( one, zero.add(tbl) );
try { tbl.sub(zero); fail("did not throw error"); } catch ( LuaError le ) { };
try { zero.sub(tbl); fail("did not throw error"); } catch ( LuaError le ) { };
tbl.setmetatable(LuaValue.tableOf( new LuaValue[] { LuaValue.SUB, RETURN_ONE, } ));
assertEquals( one, tbl.sub(zero) );
assertEquals( one, zero.sub(tbl) );
try { tbl.mul(zero); fail("did not throw error"); } catch ( LuaError le ) { };
try { zero.mul(tbl); fail("did not throw error"); } catch ( LuaError le ) { };
tbl.setmetatable(LuaValue.tableOf( new LuaValue[] { LuaValue.MUL, RETURN_ONE, } ));
assertEquals( one, tbl.mul(zero) );
assertEquals( one, zero.mul(tbl) );
try { tbl.div(zero); fail("did not throw error"); } catch ( LuaError le ) { };
try { zero.div(tbl); fail("did not throw error"); } catch ( LuaError le ) { };
tbl.setmetatable(LuaValue.tableOf( new LuaValue[] { LuaValue.DIV, RETURN_ONE, } ));
assertEquals( one, tbl.div(zero) );
assertEquals( one, zero.div(tbl) );
try { tbl.pow(zero); fail("did not throw error"); } catch ( LuaError le ) { };
try { zero.pow(tbl); fail("did not throw error"); } catch ( LuaError le ) { };
tbl.setmetatable(LuaValue.tableOf( new LuaValue[] { LuaValue.POW, RETURN_ONE, } ));
assertEquals( one, tbl.pow(zero) );
assertEquals( one, zero.pow(tbl) );
try { tbl.mod(zero); fail("did not throw error"); } catch ( LuaError le ) { };
try { zero.mod(tbl); fail("did not throw error"); } catch ( LuaError le ) { };
tbl.setmetatable(LuaValue.tableOf( new LuaValue[] { LuaValue.MOD, RETURN_ONE, } ));
assertEquals( one, tbl.mod(zero) );
assertEquals( one, zero.mod(tbl) );
}
public void testCompareStrings() {
// these are lexical compare!