Feature: Support more math operators

ovr · ovr · commit f6638d6260de · 2018-10-31T21:03:05.000+09:00
diff --git a/src/Backend/LLVM/index.ts b/src/Backend/LLVM/index.ts
@@ -98,14 +98,42 @@ function buildFromBinaryExpression(
     builder: llvm.IRBuilder
 ): llvm.Value {
     switch (expr.operator) {
-        case '+':
+        case '+': {
             const left = buildFromExpression(expr.left, ctx, builder);
             const right = buildFromExpression(expr.right, ctx, builder);
 
             return builder.createFAdd(
                 loadIfNeeded(left, builder, ctx),
                 loadIfNeeded(right, builder, ctx)
             );
+        }
+        case '-': {
+            const left = buildFromExpression(expr.left, ctx, builder);
+            const right = buildFromExpression(expr.right, ctx, builder);
+
+            return builder.createFSub(
+                loadIfNeeded(left, builder, ctx),
+                loadIfNeeded(right, builder, ctx)
+            );
+        }
+        case '*': {
+            const left = buildFromExpression(expr.left, ctx, builder);
+            const right = buildFromExpression(expr.right, ctx, builder);
+
+            return builder.createFMul(
+                loadIfNeeded(left, builder, ctx),
+                loadIfNeeded(right, builder, ctx)
+            );
+        }
+        case '/': {
+            const left = buildFromExpression(expr.left, ctx, builder);
+            const right = buildFromExpression(expr.right, ctx, builder);
+
+            return builder.createFDiv(
+                loadIfNeeded(left, builder, ctx),
+                loadIfNeeded(right, builder, ctx)
+            );
+        }
         default:
             throw new Error(
                 `Unsupported BinaryExpression.operator: "${expr.type}"`
diff --git a/src/Frontend/TypeScript/index.ts b/src/Frontend/TypeScript/index.ts
@@ -3,10 +3,10 @@ import {parse} from '@babel/parser'
 const example = `
 {
     function doMath(): number {
-        const a = 1.2;
-        const b = 2.5;
+        const a = 5.5;
+        const b = 14.5;
 
-        return a + b;
+        return ((a + b) * 50) / 10;
     }
 
     doMath();
diff --git a/src/cli.ts b/src/cli.ts
@@ -15,7 +15,7 @@ llvm.initializeAllAsmPrinters();
 
 const llvmModule = generateModuleFromFile(ast);
 
-// llvm.verifyModule(llvmModule);
+llvm.verifyModule(llvmModule);
 
 console.log(llvmModule.print());
 

Original file line number	Diff line number	Diff line change
`@@ -3,10 +3,10 @@ import {parse} from '@babel/parser'`
`3`	`3`	const example = `
`4`	`4`	`{`
`5`	`5`	`function doMath(): number {`
`6`		`- const a = 1.2;`
`7`		`- const b = 2.5;`
	`6`	`+ const a = 5.5;`
	`7`	`+ const b = 14.5;`
`8`	`8`
`9`		`- return a + b;`
	`9`	`+ return ((a + b) * 50) / 10;`
`10`	`10`	`}`
`11`	`11`
`12`	`12`	`doMath();`