Zig 0.17.0-dev (Split by item)

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transIfStmt

Translator.transIfStmt

fn transIfStmt(t: *Translator, scope: *Scope, if_stmt: Node.IfStmt) TransError!ZigNode

File

lib/compiler/translate-c/Translator.zig:1776

Code

fn transIfStmt(t: *Translator, scope: *Scope, if_stmt: Node.IfStmt) TransError!ZigNode {
    var cond_scope: Scope.Condition = .{
        .base = .{
            .parent = scope,
            .id = .condition,
        },
    };
    defer cond_scope.deinit();
    const cond = try t.transBoolExpr(&cond_scope.base, if_stmt.cond);

    // block needed to keep else statement from attaching to inner while
    const must_blockify = (if_stmt.else_body != null) and switch (if_stmt.then_body.get(t.tree)) {
        .while_stmt, .do_while_stmt, .for_stmt => true,
        else => false,
    };

    const then_node = if (must_blockify)
        try t.blockify(scope, if_stmt.then_body)
    else
        try t.maybeBlockify(scope, if_stmt.then_body);

    const else_node = if (if_stmt.else_body) |stmt|
        try t.maybeBlockify(scope, stmt)
    else
        null;
    return ZigTag.@"if".create(t.arena, .{ .cond = cond, .then = then_node, .@"else" = else_node });
}