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Added @This() support

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This commit is contained in:
Alexandros Naskos 2020-05-19 18:53:01 +03:00
parent 1472206525
commit 6fe52d95b3
2 changed files with 31 additions and 3 deletions
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20
src/analysis.zig
View File

@ -263,7 +263,10 @@ fn resolveReturnType(analysis_ctx: *AnalysisContext, fn_decl: *ast.Node.FnProto)
// a container declaration, we will return that declaration.
const ret = findReturnStatement(fn_decl.body_node.?) orelse return null;
if (ret.rhs) |rhs| if (resolveTypeOfNode(analysis_ctx, rhs)) |res_rhs| switch(res_rhs.id) {
.ContainerDecl => return res_rhs,
.ContainerDecl => {
analysis_ctx.onContainer(res_rhs.cast(ast.Node.ContainerDecl).?) catch return null;
return res_rhs;
},
else => return null,
};
@ -295,6 +298,7 @@ pub fn resolveTypeOfNode(analysis_ctx: *AnalysisContext, node: *ast.Node) ?*ast.
},
.Identifier => {
if (getChildOfSlice(analysis_ctx.tree, analysis_ctx.scope_nodes, analysis_ctx.tree.getNodeSource(node))) |child| {
std.debug.warn("Found node {}\n", .{child});
return resolveTypeOfNode(analysis_ctx, child);
} else return null;
},
@ -347,7 +351,13 @@ pub fn resolveTypeOfNode(analysis_ctx: *AnalysisContext, node: *ast.Node) ?*ast.
},
.BuiltinCall => {
const builtin_call = node.cast(ast.Node.BuiltinCall).?;
if (!std.mem.eql(u8, analysis_ctx.tree.tokenSlice(builtin_call.builtin_token), "@import")) return null;
const call_name = analysis_ctx.tree.tokenSlice(builtin_call.builtin_token);
if (std.mem.eql(u8, call_name, "@This")) {
if (builtin_call.params.len != 0) return null;
return analysis_ctx.last_this_node;
}
if (!std.mem.eql(u8, call_name, "@import")) return null;
if (builtin_call.params.len > 1) return null;
const import_param = builtin_call.params.at(0).*;
@ -359,7 +369,11 @@ pub fn resolveTypeOfNode(analysis_ctx: *AnalysisContext, node: *ast.Node) ?*ast.
break :block null;
};
},
.MultilineStringLiteral, .StringLiteral, .ContainerDecl, .ErrorSetDecl, .FnProto => return node,
.ContainerDecl => {
analysis_ctx.onContainer(node.cast(ast.Node.ContainerDecl).?) catch return null;
return node;
},
.MultilineStringLiteral, .StringLiteral, .ErrorSetDecl, .FnProto => return node,
else => std.debug.warn("Type resolution case not implemented; {}\n", .{node.id}),
}
return null;

14
src/document_store.zig
View File

@ -258,11 +258,13 @@ pub const AnalysisContext = struct {
arena: *std.heap.ArenaAllocator,
tree: *std.zig.ast.Tree,
scope_nodes: []*std.zig.ast.Node,
last_this_node: *std.zig.ast.Node,
fn refreshScopeNodes(self: *AnalysisContext) !void {
var scope_nodes = std.ArrayList(*std.zig.ast.Node).init(&self.arena.allocator);
try analysis.addChildrenNodes(&scope_nodes, self.tree, &self.tree.root_node.base);
self.scope_nodes = scope_nodes.items;
self.last_this_node = &self.tree.root_node.base;
}
pub fn onImport(self: *AnalysisContext, import_str: []const u8) !?*std.zig.ast.Node {
@ -348,9 +350,20 @@ pub const AnalysisContext = struct {
.arena = self.arena,
.tree = tree,
.scope_nodes = self.scope_nodes,
.last_this_node = &tree.root_node.base,
};
}
pub fn onContainer(self: *AnalysisContext, container: *std.zig.ast.Node.ContainerDecl) !void {
if (self.last_this_node != &container.base) {
self.last_this_node = &container.base;
var scope_nodes = std.ArrayList(*std.zig.ast.Node).init(&self.arena.allocator);
try analysis.addChildrenNodes(&scope_nodes, self.tree, &container.base);
self.scope_nodes = scope_nodes.items;
}
}
pub fn deinit(self: *AnalysisContext) void {
self.tree.deinit();
}
@ -368,6 +381,7 @@ pub fn analysisContext(self: *DocumentStore, handle: *Handle, arena: *std.heap.A
.arena = arena,
.tree = tree,
.scope_nodes = scope_nodes.items,
.last_this_node = &tree.root_node.base,
};
}