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-added implementation for Object.hasOwnProperty #235

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Merged
Perryvw merged 1 commit into from
Oct 13, 2018
Merged

-added implementation for Object.hasOwnProperty #235

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4 changes: 4 additions & 0 deletions src/Transpiler.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -1155,6 +1155,10 @@ export abstract class LuaTranspiler {
const name = this.transpileIdentifier(node.expression.name);
if (name === "toString") {
return `tostring(${this.transpileExpression(node.expression.expression)})`;
} else if (name === "hasOwnProperty") {
const expr = this.transpileExpression(node.expression.expression);
params = this.transpileArguments(node.arguments);
return `(rawget(${expr}, ${params} )~=nil)`;
} else {
callPath =
`${this.transpileExpression(node.expression.expression)}:${name}`;
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37 changes: 37 additions & 0 deletions test/unit/class.spec.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -201,7 +201,44 @@ export class ClassTests {
// Assert
Expect(result).toBe("instance of a");
}
@Test("HasOwnProperty true")
public hasOwnProperty1(): void {
// Transpile
const lua = util.transpileString(
`class a {
public test(): void {
}
}
let inst = new a();
inst["prop"] = 17;
return inst.hasOwnProperty("prop");`
);

// Execute
const result = util.executeLua(lua);

// Assert
Expect(result).toBe(true);
}
@Test("HasOwnProperty false")
public hasOwnProperty2(): void {
// Transpile
const lua = util.transpileString(
`class a {
public test(): void {
}
}
let inst = new a();
inst["prop"] = 17;
return inst.hasOwnProperty("test");`
);

// Execute
const result = util.executeLua(lua);

// Assert
Expect(result).toBe(false);
}
@Test("CastClassMethodCall")
public extraParenthesisAssignment(): void {
// Transpile
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