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Add lambda expressions

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James Westman 2022-01-29 22:37:00 -06:00
parent 012bdf6843
commit fc497ac9e6
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18 changed files with 247 additions and 80 deletions
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17
blueprintcompiler/language/expression.py
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@ -41,7 +41,14 @@ class InfixExpr(AstNode):
class IdentExpr(AstNode):
grammar = UseIdent("ident")
@property
def is_this(self):
return self.parent_by_type(Scope).this_name == self.tokens["ident"]
def emit_xml(self, xml: XmlEmitter):
if self.is_this:
raise CompilerBugError()
xml.start_tag("constant")
xml.put_text(self.tokens["ident"])
xml.end_tag()
@ -51,9 +58,13 @@ class LookupOp(InfixExpr):
grammar = [".", UseIdent("property")]
def emit_xml(self, xml: XmlEmitter):
xml.start_tag("lookup", name=self.tokens["property"])
self.lhs.emit_xml(xml)
xml.end_tag()
if isinstance(self.lhs, IdentExpr) and self.lhs.is_this:
xml.put_self_closing("lookup", name=self.tokens["property"], type=self.parent_by_type(Scope).this_type)
else:
xml.start_tag("lookup", name=self.tokens["property"])
self.lhs.emit_xml(xml)
xml.end_tag()
expr.children = [