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[Macros] Use name lookup for lazy declaration macro expansion (#63411)

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- Use the name lookup table instead of adding members from a macro expansion to the parent decl context.
- Require declaration macros to specify introduced names and used the declared names to guide macro expansions lazily.
This commit is contained in:
Richard Wei
2023-02-07 11:24:42 +08:00
committed by GitHub
parent 5d684fb679
commit 01e4c8df26
19 changed files with 215 additions and 67 deletions
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8
test/SourceKit/Macros/macro_basic.swift
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@@ -1,4 +1,4 @@
macro stringify<T>(_ value: T) -> (T, String) = MacroDefinition.StringifyMacro
@freestanding(expression) macro stringify<T>(_ value: T) -> (T, String) = #externalMacro(module: "MacroDefinition", type: "StringifyMacro")
func testStringify(a: Int, b: Int) {
_ = #stringify(a + b)
@@ -35,10 +35,10 @@ func testStringify(a: Int, b: Int) {
//##-- cursor-info at 'stringify' position.
// RUN: %sourcekitd-test -req=cursor -pos=4:8 -cursor-action %s -- ${COMPILER_ARGS[@]} | %FileCheck -check-prefix=CURSOR_MACRONAME %s
// CURSOR_MACRONAME: source.lang.swift.ref.macro (1:7-1:16)
// CURSOR_MACRONAME: source.lang.swift.ref.macro (1:33-1:42)
// CURSOR_MACRONAME: (T) -> (T, String)
// CURSOR_MACRONAME: <Declaration>macro stringify&lt;T&gt;(_ value: <Type usr="s:9MacroUser1TL_xmfp">T</Type>) -&gt; (<Type usr="s:9MacroUser1TL_xmfp">T</Type>, <Type usr="s:SS">String</Type>) = MacroDefinition.StringifyMacro</Declaration>
// CURSOR_MACRONAME: <decl.macro><syntaxtype.keyword>macro</syntaxtype.keyword> <decl.name>stringify</decl.name>&lt;<decl.generic_type_param usr="s:9MacroUser1TL_xmfp"><decl.generic_type_param.name>T</decl.generic_type_param.name></decl.generic_type_param>&gt;(<decl.var.parameter><decl.var.parameter.argument_label>_</decl.var.parameter.argument_label> <decl.var.parameter.name>value</decl.var.parameter.name>: <decl.var.parameter.type><ref.generic_type_param usr="s:9MacroUser1TL_xmfp">T</ref.generic_type_param></decl.var.parameter.type></decl.var.parameter>) -&gt; <decl.function.returntype><tuple>(<tuple.element><tuple.element.type><ref.generic_type_param usr="s:9MacroUser1TL_xmfp">T</ref.generic_type_param></tuple.element.type></tuple.element>, <tuple.element><tuple.element.type><ref.struct usr="s:SS">String</ref.struct></tuple.element.type></tuple.element>)</tuple></decl.function.returntype> = MacroDefinition.StringifyMacro</decl.macro>
// CURSOR_MACRONAME: <Declaration>@freestanding(expression) macro stringify&lt;T&gt;(_ value: <Type usr="s:9MacroUser1TL_xmfp">T</Type>) -&gt; (<Type usr="s:9MacroUser1TL_xmfp">T</Type>, <Type usr="s:SS">String</Type>) = #externalMacro(module: &quot;MacroDefinition&quot;, type: &quot;StringifyMacro&quot;)</Declaration>
// CURSOR_MACRONAME: <decl.macro><syntaxtype.attribute.builtin><syntaxtype.attribute.name>@freestanding</syntaxtype.attribute.name>(expression)</syntaxtype.attribute.builtin> <syntaxtype.keyword>macro</syntaxtype.keyword> <decl.name>stringify</decl.name>&lt;<decl.generic_type_param usr="s:9MacroUser1TL_xmfp"><decl.generic_type_param.name>T</decl.generic_type_param.name></decl.generic_type_param>&gt;(<decl.var.parameter><decl.var.parameter.argument_label>_</decl.var.parameter.argument_label> <decl.var.parameter.name>value</decl.var.parameter.name>: <decl.var.parameter.type><ref.generic_type_param usr="s:9MacroUser1TL_xmfp">T</ref.generic_type_param></decl.var.parameter.type></decl.var.parameter>) -&gt; <decl.function.returntype><tuple>(<tuple.element><tuple.element.type><ref.generic_type_param usr="s:9MacroUser1TL_xmfp">T</ref.generic_type_param></tuple.element.type></tuple.element>, <tuple.element><tuple.element.type><ref.struct usr="s:SS">String</ref.struct></tuple.element.type></tuple.element>)</tuple></decl.function.returntype> = #externalMacro(module: &quot;MacroDefinition&quot;, type: &quot;StringifyMacro&quot;)</decl.macro>
// CURSOR_MACRONAME-LABEL: ACTIONS BEGIN
// CURSOR_MACRONAME: source.refactoring.kind.rename.global
// CURSOR_MACRONAME-NEXT: Global Rename