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small patches

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This commit is contained in:
Jordi Baylina
2018-12-22 23:52:19 +01:00
parent 394ce29fb2
commit 81da4747da
4 changed files with 137 additions and 26 deletions
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14
src/gencode.js
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@@ -63,6 +63,10 @@ function gen(ctx, ast) {
return genPlusPlusRight(ctx, ast);
} else if (ast.op == "PLUSPLUSLEFT") {
return genPlusPlusLeft(ctx, ast);
} else if (ast.op == "MINUSMINUSRIGHT") {
return genMinusMinusRight(ctx, ast);
} else if (ast.op == "MINUSMINUSLEFT") {
return genMinusMinusLeft(ctx, ast);
} else if (ast.op == "**") {
return genExp(ctx, ast);
} else if (ast.op == "/") {
@@ -231,6 +235,7 @@ function genFunctionDef(ctx, ast) {
}
function genFor(ctx, ast) {
ctx.scopes.push({});
const init = gen(ctx, ast.init);
if (ctx.error) return;
const condition = gen(ctx, ast.condition);
@@ -239,6 +244,7 @@ function genFor(ctx, ast) {
if (ctx.error) return;
const body = gen(ctx, ast.body);
if (ctx.error) return;
ctx.scopes.pop();
return `for (${init};${condition};${step}) { \n${body}\n }\n`;
}
@@ -431,6 +437,14 @@ function genPlusPlusLeft(ctx, ast) {
return genVarAssignement(ctx, {values: [ast.values[0], {type: "OP", op: "+", values: [ast.values[0], {type: "NUMBER", value: bigInt(1)}]}]});
}
function genMinusMinusRight(ctx, ast) {
return `(${genVarAssignement(ctx, {values: [ast.values[0], {type: "OP", op: "-", values: [ast.values[0], {type: "NUMBER", value: bigInt(1)}]}]})}).add(__P__).sub(bigInt(1)).mod(__P__)`;
}
function genMinusMinusLeft(ctx, ast) {
return genVarAssignement(ctx, {values: [ast.values[0], {type: "OP", op: "-", values: [ast.values[0], {type: "NUMBER", value: bigInt(1)}]}]});
}
function genAdd(ctx, ast) {
const a = gen(ctx, ast.values[0]);
if (ctx.error) return;