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2 Commits
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...
a6d9604202
| Author | SHA1 | Date |
|---|---|---|
 Drake
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a6d9604202 | 1 year ago |
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Drake
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129217fbea | 1 year ago |
@ -1,130 +1,127 @@
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import swc from "npm:@swc/wasm@1.3.35";
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import { resolveNode } from "../index.ts";
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import BlockStatement from "./BlockStatement.ts";
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export default function IfStatement(
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node: swc.Node,
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variablesTable: VariablesTableType,
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variableModificationThings: VariablesThingType,
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prc: { count: number },
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mainInstructions: string[],
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node: swc.Node,
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variablesTable: VariablesTableType,
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variableModificationThings: VariablesThingType,
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prc: { count: number },
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mainInstructions: string[],
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) {
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const typedNode = node as swc.IfStatement;
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switch (typedNode.test.type) {
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case "BinaryExpression": {
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const typedExpr = typedNode.test as swc.BinaryExpression;
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let addr1: number;
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let addr2: number;
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switch (typedExpr.left.type) {
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case "Identifier": {
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const typedValue = typedExpr.left;
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const variableInfo = variablesTable[typedValue.value];
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if (variableInfo.memoryType === "string") {
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// TODO: implement string comparisons
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throw new Error(
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"i would rather pipi in pampers than implement string comparisons",
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);
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}
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addr1 = variableInfo.memoryLocation;
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break;
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}
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default:
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throw new Error(
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`left side comparison not implemented for node type ${typedExpr.left.type}`,
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);
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}
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switch (typedExpr.right.type) {
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case "Identifier": {
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const typedValue = typedExpr.right;
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const variableInfo = variablesTable[typedValue.value];
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if (variableInfo.memoryType === "string") {
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// TODO: implement string comparisons
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throw new Error(
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"i would rather pipi in pampers than implement string comparisons",
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);
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}
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addr2 = variableInfo.memoryLocation;
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break;
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}
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case "BooleanLiteral": {
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const value = typedExpr.right.value;
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mainInstructions.push(
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`LOL ${value ? "01" : "00"} 00F2`,
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);
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addr2 = 0x00F2;
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prc.count += 4;
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break;
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}
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default:
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throw new Error(
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`right side comparison not implemented for node type ${typedExpr.right.type}`,
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);
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}
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let ourInsts = [`${(() => {
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switch (typedExpr.operator) {
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case "!=":
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case "!==":
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return "JEA";
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case "==":
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case "===":
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return "JNA";
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default:
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throw new Error(
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`if statement comparison operator ${typedExpr.operator} unimplemented`,
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);
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}
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})} TODO${
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(
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typedExpr.operator === "<" ||
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typedExpr.operator === ">"
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)
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? ` ${
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addr1.toString(16).padStart(
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4,
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"0",
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)
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} ${
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addr2.toString(16).padStart(
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4,
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"0",
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)
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}`
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: ""
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}`];
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prc.count += 7;
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const oldPRC = prc;
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for (
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const node of (typedNode.consequent as swc.BlockStatement)
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.stmts
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) {
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ourInsts = ourInsts.concat(
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resolveNode(
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node,
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prc,
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variableModificationThings,
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variablesTable,
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),
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);
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}
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ourInsts[0] = ourInsts[0].replace(
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"TODO",
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prc.count.toString(16).padStart(
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4,
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"0",
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),
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const typedNode = node as swc.IfStatement;
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switch (typedNode.test.type) {
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case "BinaryExpression": {
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const typedExpr = typedNode.test as swc.BinaryExpression;
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let addr1: number;
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let addr2: number;
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switch (typedExpr.left.type) {
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case "Identifier": {
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const typedValue = typedExpr.left;
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const variableInfo = variablesTable[typedValue.value];
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if (variableInfo.memoryType === "string") {
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// TODO: implement string comparisons
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throw new Error(
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"i would rather pipi in pampers than implement string comparisons",
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);
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ourInsts.push("NOP");
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prc.count++;
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for (const inst of ourInsts) {
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mainInstructions.push(inst);
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}
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break;
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}
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addr1 = variableInfo.memoryLocation;
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break;
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}
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default:
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throw new Error(
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`left side comparison not implemented for node type ${typedExpr.left.type}`,
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);
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}
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switch (typedExpr.right.type) {
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case "Identifier": {
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const typedValue = typedExpr.right;
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const variableInfo = variablesTable[typedValue.value];
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if (variableInfo.memoryType === "string") {
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// TODO: implement string comparisons
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throw new Error(
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`if statement test with node type ${typedNode.test.type} not implemented`,
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"i would rather pipi in pampers than implement string comparisons",
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);
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}
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addr2 = variableInfo.memoryLocation;
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break;
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}
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case "BooleanLiteral": {
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const value = typedExpr.right.value;
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mainInstructions.push(
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`LOL ${value ? "01" : "00"} 00F2`,
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);
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addr2 = 0x00F2;
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prc.count += 4;
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break;
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}
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default:
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throw new Error(
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`right side comparison not implemented for node type ${typedExpr.right.type}`,
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);
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}
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let ourInsts = [`${
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(() => {
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switch (typedExpr.operator) {
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case "!=":
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case "!==":
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return "JEA";
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case "==":
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case "===":
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return "JNA";
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default:
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throw new Error(
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`if statement comparison operator ${typedExpr.operator} unimplemented`,
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);
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}
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})()
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} TODO${
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// deno-lint-ignore no-constant-condition
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(
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false
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)
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? ` ${
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addr1.toString(16).padStart(
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4,
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"0",
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)
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} ${
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addr2.toString(16).padStart(
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4,
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"0",
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)
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}`
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: ""}`];
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prc.count += 7;
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const oldPRC = prc;
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ourInsts = ourInsts.concat(
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...resolveNode(
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typedNode.consequent,
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prc,
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variableModificationThings,
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variablesTable,
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),
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);
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ourInsts[0] = ourInsts[0].replace(
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"TODO",
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prc.count.toString(16).padStart(
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4,
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"0",
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),
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);
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ourInsts.push("NOP");
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prc.count++;
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for (const inst of ourInsts) {
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mainInstructions.push(inst);
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}
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break;
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}
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default:
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throw new Error(
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`if statement test with node type ${typedNode.test.type} not implemented`,
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);
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}
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}
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